Document:

EXHIBIT 10.2

                        MORTGAGE LOAN PURCHASE AGREEMENT

            This Mortgage Loan Purchase Agreement (the "Agreement"), dated as of
September 28, 2006, is between Wells Fargo Asset Securities Corporation, a
Delaware corporation (the "Company"), and Wells Fargo Bank, N.A., a national
banking association (the "Seller" or "Wells Fargo Bank").

            The Company and the Seller hereby recite and agree as follows:

            1. Defined Terms. Terms used without definition herein shall have
the respective meanings assigned to them in the Pooling and Servicing Agreement,
dated as of September 28, 2006 (the "Pooling and Servicing Agreement"), among
the Company, Wells Fargo Bank, as master servicer (the "Master Servicer"), and
HSBC Bank USA, National Association, as trustee (the "Trustee"), relating to the
issuance of the Company's Mortgage Pass-Through Certificates, Series 2006-13
(the "Certificates") or, if not defined therein, in the underwriting agreement,
dated February 15, 2006 and terms agreement, dated August 22, 2006 (together,
the "Class A Underwriting Agreement"), among the Company, Wells Fargo Bank and
Countrywide Securities Corporation, or in the underwriting agreement, dated
February 15, 2006 and terms agreement, dated September 8, 2006 (together, the
"Class B Underwriting Agreement" and, together with the Class A Underwriting
Agreement, the "Underwriting Agreements"), among the Company, Wells Fargo Bank
and Lehman Brothers Inc. (together with Countrywide Securities Corporation, the
"Underwriters") or in the purchase agreement, dated May 10, 2004 and the
purchaser terms agreement, dated September 8, 2006 (together, the "Purchase
Agreement"), among the Company, Wells Fargo Bank and Lehman Brothers Inc.

            2. Assignment of Servicing Agreements. The Seller agrees to sell,
and the Company agrees to purchase, the mortgage loans (the "Mortgage Loans"),
other than the Fixed Retained Yield with respect to the Mortgage Loans, listed
on the Mortgage Loan Schedule and all of the Seller's interest with respect to
the Mortgage Loans as the owner in, to and under each Servicing Agreement.

            3. Purchase Price; Purchase and Sale. The purchase price (the
"Purchase Price") for the Mortgage Loans shall consist of $[______] payable by
the Company to the Seller on the Closing Date in immediately available funds.

            Upon payment of the Purchase Price, the Seller shall be deemed to
have transferred, assigned, set over and otherwise conveyed to the Company all
the right, title and interest of the Seller in and to the Mortgage Loans
including all interest and principal received or receivable by the Seller on or
with respect to the Mortgage Loans after the Cut-Off Date (and including
scheduled payments of principal and interest due after the Cut-Off Date but
received by the Seller on or before the Cut-Off Date and Principal Prepayments
received or applied on the Cut-Off Date, but not including payments of principal
and interest due on the Mortgage Loans on or before the Cut-Off Date), together
with all of the Seller's right, title and interest in and to the proceeds of any
related title, hazard, primary mortgage or other insurance policies, the
Seller's right to receive amounts, if any, payable on behalf of any Mortgagor
from the Subsidy Account relating to any Subsidy Loan, the Seller's right, title
and interest in and to the proceeds of the Letters of Credit, all of the
Seller's rights described in Section 2 above, and all other property and rights
described in the first paragraph of Section 2.01(a) of the Pooling and Servicing
Agreement. The Company hereby directs the Seller, and the Seller hereby agrees,
to deliver to the Trustee or Custodian on behalf of the Trustee, all documents,
instruments and agreements required to be delivered by the Company to the
Trustee under the Pooling and Servicing Agreement; including, without
limitation, the documents required to be delivered under Section 2.01(a) of the
Pooling and Servicing Agreement; and upon the occurrence of a Document Transfer
Event, the documents required to be delivered under Section 2.01(b). The Seller
further agrees to deliver such other documents, instruments and agreements as
the Company or the Trustee shall reasonably request.

            4. Representations and Warranties; Covenants. The Seller hereby
represents and warrants to the Company that (i) the Company's representations
and warranties to the Trustee pursuant to Section 2.03(b) of the Pooling and
Servicing Agreement are true and correct, as of the date thereof, and (ii)
Seller has not dealt with any broker, investment banker, agent or other person
(other than the Company, Countrywide Securities Corporation and Lehman Brothers
Inc.) who may be entitled to any commission or compensation in connection with
the sale of the Mortgage Loans. The Seller hereby agrees to cure any breach of
such representations and warranties in accordance with the terms of the Pooling
and Servicing Agreement.

            The Seller hereby agrees to continue to pay on behalf of the Company
and its successors and assignees, promptly as they become due, any lender-paid
primary mortgage insurance premiums ("LPMI Premiums") with respect to any
lender-paid primary mortgage insurance policy (an "LPMI Policy") on each
Mortgage Loan so insured as of the Cut-Off Date, until such Mortgage Loan has
been paid in full or otherwise liquidated; provided, however, that the foregoing
obligation of the Seller shall terminate with respect to all such Mortgage Loans
in the event that either (i) another entity acceptable to the insurers of such
LPMI Policies (the "LPMI Insurers") and the rating agencies rating the
Certificates undertakes to pay such LPMI Premiums, or (ii) the Seller pays
one-time premiums to such LPMI Insurers such that all outstanding LPMI Policies
will remain in force until the related Mortgage Loans have been paid in full or
otherwise liquidated, without the requirement of any further premium payments.

            5. Repurchase or Substitution. (a) The Seller hereby agrees to
repurchase any Mortgage Loan (i) for which any document is not delivered, as
provided in paragraph 3 above, (ii) which is found by the Trustee or the
Custodian to be defective in any material respect, as provided in the Pooling
and Servicing Agreement, or (iii) which is discovered at any time not to be in
conformance with the representations and warranties referred to in paragraph 4
above and which document relating thereto the Seller does not deliver or which
defect or breach the Seller does not cure (as provided in paragraph 4 above)
within 60 days after the date of notice thereof from the Trustee or the Company,
at a price equal to the Repurchase Price. In addition, the Seller hereby agrees
to reimburse the Company for any Reimbursement Amount. Alternatively, the Seller
hereby agrees, if so requested by the Company to substitute for any such
Mortgage Loan, a new mortgage loan having characteristics such that the
representations and warranties referred to in paragraph 4 above would not have
been incorrect (except for representations and warranties as to the correctness
of the Mortgage Loan Schedule) had such substitute mortgage loan originally been
a Mortgage Loan. The Seller further agrees that a substituted mortgage loan will
have (i) an unpaid principal balance no greater than the Scheduled Principal
Balance of the Mortgage Loan for which it is substituted (after giving effect to
the scheduled principal payment due in the month of substitution on the Mortgage
Loan for which such mortgage loan is substituted) and (ii) a Net Mortgage
Interest Rate equal to and a Loan-to-Value Ratio no greater than that of the
Mortgage Loan for which it is substituted. The Seller shall remit to the
Company, in cash, the difference between the unpaid principal balance of the
Mortgage Loan to be substituted and the unpaid principal balance of the
substitute mortgage loan.

            (b) In the event that the Seller has a right against the originator
or former owner of a Mortgage Loan (the "Prior Holder") for breach of a
representation or warranty regarding the characteristics of such Mortgage Loan
made by the Prior Holder, the Seller may request the Company to repurchase the
Mortgage Loan from the Trust Estate pursuant to Section 3.08 of the Pooling and
Servicing Agreement and the Seller agrees that at the time of the repurchase by
the Company, the Seller will repurchase the Mortgage Loan from the Company at a
price equal to the Repurchase Price.

            At the time of any such repurchase by the Seller, the Seller agrees
either to promptly (i) liquidate such Mortgage Loan, to the extent that the
Seller's rights in respect of the Prior Holder consist of a claim for indemnity
or (ii) transfer such Mortgage Loan to the Prior Holder at a price not less than
that paid by the Seller to the Company.

            6. Underwriting. The Seller hereby agrees to furnish any and all
information, documents, certificates, letters or opinions with respect to the
Mortgage Loans, reasonably requested by the Company in order to perform any of
its obligations or satisfy any of the conditions on its part to be performed or
satisfied pursuant to each Underwriting Agreement or the Purchase Agreement at
or prior to the Closing Date.

            7. Costs. The Company shall pay all expenses incidental to the
performance of its obligations under each Underwriting Agreement and the
Purchase Agreement, including without limitation (i) any recording fees or fees
for title policy endorsements and continuations, (ii) the expenses of preparing,
printing and reproducing the Prospectus, the Prospectus Supplement, the
Underwriting Agreements, the Private Placement Memorandum, the Purchase
Agreement, the Pooling and Servicing Agreement and the Certificates and (iii)
the cost of delivering the Certificates to the offices of Countrywide Securities
Corporation and Lehman Brothers Inc. insured to the satisfaction of Countrywide
Securities Corporation and Lehman Brothers Inc., respectively.

            8. Servicing. (a) The Seller hereby represents to the Company that
the Mortgage Loans are serviced by the Servicers. The Seller has delivered
copies of each Servicing Agreement to the Company, though omitting schedules of
mortgage loans which are serviced thereunder, but which are not being sold in
this transaction.

            (b) With respect to each Mortgage Loan, the Servicing Fee Rate and
the Master Servicing Fee Rate (which is in addition to the Servicing Fee Rate)
shall be as set forth on the Mortgage Loan Schedule.

            (c) On the Closing Date, the Seller shall assign to the Company its
interest with respect to the Mortgage Loans in, to and under each Servicing
Agreement.

            9. Notices. All demands, notices and communications hereunder shall
be in writing, shall be effective only upon receipt and shall, if sent to the
Company, be addressed to it at Wells Fargo Asset Securities Corporation, 7430
New Technology Way, Frederick, Maryland 21703, Attn: Vice President, Structured
Finance, or, if sent to the Seller, be addressed to it at Wells Fargo Bank,
N.A., 7430 New Technology Way, Frederick, Maryland, 21703, Attn: Vice President,
Structured Finance.

            10. Trustee Beneficiary. The representations, warranties and
agreements made by the Seller in this Agreement are made for the benefit of, and
may be enforced by, the Trustee and the holders of Certificates to the same
extent that the Trustee and the holders of Certificates, respectively, have
rights against the Company under the Pooling and Servicing Agreement in respect
of representations, warranties and agreements made by the Company therein.

            11. Recharacterization. The parties hereto intend the conveyance by
the Seller to the Company of all of its right, title and interest in and to the
Mortgage Loans pursuant to this Agreement to constitute a purchase and sale and
not a loan. Notwithstanding the foregoing, to the extent that such conveyance is
held not to constitute a sale under applicable law, it is intended that this
Agreement shall constitute a security agreement under applicable law and that
the Seller shall be deemed to have granted to the Company a first priority
security interest in all of the Seller's right, title and interest in and to the
Mortgage Loans.

            12. Miscellaneous. This Agreement shall be governed by and construed
in accordance with the laws of the State of New York. Neither this Agreement nor
any term hereof may be changed, waived, discharged or terminated except by a
writing signed by the party against whom enforcement of such change, waiver,
discharge or termination is sought. This Agreement may not be changed in any
manner which would have a material adverse effect on holders of Certificates
without the prior written consent of the Trustee. The Trustee shall be protected
in consenting to any such change to the same extent provided in Article VIII of
the Pooling and Servicing Agreement. This Agreement may be signed in any number
of counterparts, each of which shall be deemed an original, which taken together
shall constitute one and the same instrument. This Agreement shall bind and
inure to the benefit of and be enforceable by the Company and the Seller and
their respective successors and assigns.

<PAGE>

            IN WITNESS WHEREOF, the Company and the Seller have caused this
Agreement to be duly executed by their respective officers as of the day and
year first above written.

                                       WELLS FARGO ASSET SECURITIES
                                             CORPORATION

                                          By: /s/ Bradley A. Davis
                                              -----------------------------
                                              Name:  Bradley A. Davis
                                              Title: Vice President

                                       WELLS FARGO BANK, N.A.

                                          By: /s/ Bradley A. Davis
                                              -----------------------------
                                              Name:  Bradley A. Davis
                                              Title: Vice PresidentEXHIBIT 4.1

              CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.,
                                    Depositor

                   KEYCORP REAL ESTATE CAPITAL MARKETS, INC.,
                              Master Servicer No. 1

                                    NCB, FSB,
                              Master Servicer No. 2

                               LNR PARTNERS, INC.,
                             Special Servicer No. 1

                       NATIONAL CONSUMER COOPERATIVE BANK,
                             Special Servicer No. 2

                             WELLS FARGO BANK, N.A.,
                                     Trustee

                        LASALLE BANK NATIONAL ASSOCIATION
                   Certificate Administrator and Paying Agent

                         POOLING AND SERVICING AGREEMENT

                          Dated as of September 1, 2006

                                 $4,273,091,953
                  Commercial Mortgage Pass-Through Certificates
                                 Series 2006-C4

<PAGE>

                                TABLE OF CONTENTS

                                    ARTICLE I

                                   DEFINITIONS

Section 1.01  Defined Terms................................................
Section 1.02  Certain Calculations.........................................
Section 1.03  General Interpretive Principles..............................
Section 1.04  Certain Matters with Respect to the 828-850 Madison
               Avenue Total Loan, the 500 Sansome Office Total
               Loan and the 3434 North Washington Boulevard Total
               Loan........................................................
Section 1.05  Certain Matters with respect to the 280 Park Avenue
               Total Loan..................................................
Section 1.06  Certain Considerations Regarding Reimbursements of
               Nonrecoverable Advances and Workout-Delayed
               Reimbursement Amounts.......................................

                               ARTICLE II

         CONVEYANCE OF LOANS; ORIGINAL ISSUANCE OF CERTIFICATES

Section 2.01  Conveyance of Loans..........................................
Section 2.02  Acceptance by Trustee........................................
Section 2.03  Representations, Warranties and Covenants of the
               Depositor; Repurchase and Substitution of Loans by
               the Responsible Parties for Defects in Mortgage
               Files, Breaches of Representations and Warranties
               and Other Matters...........................................
Section 2.04  Issuance of Uncertificated Lower-Tier Interests;
               Execution of Certificates...................................

                              ARTICLE III

             ADMINISTRATION AND SERVICING OF THE TRUST FUND

Section 3.01  General Servicing Matters....................................
Section 3.02  Collection of Loan Payments..................................
Section 3.03  Collection of Taxes, Assessments and Similar Items;
               Servicing Accounts..........................................
Section 3.04  The Collection Accounts, Distribution Account and
               Grantor Trust Distribution Account..........................
Section 3.05  Permitted Withdrawals from the Collection Accounts
               and the Distribution Account................................
Section 3.06  Investment of Funds in the Collection Accounts,
               Junior Loan Custodial Accounts, Servicing
               Accounts, Companion Loan Custodial Accounts,
               Servicing Accounts Cash Collateral Accounts,
               Lock-Box Accounts, REO Accounts, Distribution
               Account, Interest Reserve Account, Floating Rate
               Account and Excess Liquidation Proceeds Account.............
Section 3.07  Maintenance of Insurance Policies; Errors and
               Omissions and Fidelity Coverage.............................
Section 3.08  Enforcement of Due-On-Sale and Due-On-Encumbrance
               Clauses; Assumption Agreements; Defeasance
               Provisions; Other Provisions................................
Section 3.09  Realization Upon Defaulted Loans.............................
Section 3.10  Trustee to Cooperate; Release of Mortgage Files..............
Section 3.11  Servicing Compensation.......................................
Section 3.12  Reports to the Certificate Administrator;
               Collection Account Statements...............................
Section 3.13  [Reserved]...................................................
Section 3.14  [Reserved]...................................................
Section 3.15  Access to Certain Information................................
Section 3.16  Title to REO Property; REO Account...........................
Section 3.17  Management of REO Property...................................
Section 3.18  Sale of Defaulted Loans and REO Properties...................
Section 3.19  Additional Obligations of the applicable Master
               Servicer and Special Servicer; Inspections;
               Appraisals..................................................
Section 3.20  Modifications, Waivers, Amendments and Consents..............
Section 3.21  Transfer of Servicing Between Master Servicer and
               Special Servicer; Record Keeping; Asset Status
               Report......................................................
Section 3.22  Sub-Servicing Agreements.....................................
Section 3.23  Representations, Warranties and Covenants of the
               Master Servicers............................................
Section 3.24  Representations, Warranties and Covenants of the
               Special Servicers...........................................
Section 3.25  Limitation on Liability of the Directing
               Certificateholder...........................................
Section 3.26  [Reserved]...................................................
Section 3.27  Lock-Box Accounts and Servicing Accounts.....................
Section 3.28  Interest Reserve Account.....................................
Section 3.29  Limitations on and Authorizations of the Master
               Servicers and Special Servicers with Respect to
               Certain Loans...............................................
Section 3.30  REMIC and Grantor Trust Administration.......................
Section 3.31  Master Servicer and Special Servicer May Own
               Certificates................................................
Section 3.32  Certain Matters with Respect to the Loan
               Combinations................................................
Section 3.33  Swap Agreement...............................................
Section 3.34  Additional Matters with Respect to the Ritz Carlton
               Mortgage Loan...............................................
Section 3.35  Litigation Control...........................................

                               ARTICLE IV

                     PAYMENTS TO CERTIFICATEHOLDERS

Section 4.01  Distributions................................................
Section 4.02  Statements to Certificateholders; Reports by
               Trustee; Other Information Available to the
               Holders and Others..........................................
Section 4.03  P&I Advances.................................................
Section 4.04  Allocation of Collateral Support Deficit.....................
Section 4.05  Allocations of Uncovered Prepayment Interest
               Shortfall Amounts...........................................
Section 4.06  Grantor Trust Reporting......................................

                               ARTICLE V

                            THE CERTIFICATES

Section 5.01  The Certificates.............................................
Section 5.02  Registration of Transfer and Exchange of
               Certificates................................................
Section 5.03  Book-Entry Certificates......................................
Section 5.04  Mutilated, Destroyed, Lost or Stolen Certificates............
Section 5.05  Persons Deemed Owners........................................
Section 5.06  Certification by Certificateholders and Certificate
               Owners......................................................
Section 5.07  Appointment of Paying Agent..................................

                               ARTICLE VI

     THE DEPOSITOR, THE MASTER SERVICERS AND THE SPECIAL SERVICERS

Section 6.01  Liability of the Depositor, the Master Servicers
               and the Special Servicers...................................
Section 6.02  Merger, Consolidation or Conversion of the
               Depositor, the Master Servicers or the Special
               Servicers...................................................
Section 6.03  Limitation on Liability of the Trustee, the
               Certificate Administrator, the Depositor, the
               Master Servicers, the Special Servicers and Others..........
Section 6.04  Master Servicers and Special Servicers Not to Resign.........
Section 6.05  Rights of the Depositor in Respect of the Master
               Servicers and the Special Servicers.........................

                              ARTICLE VII

                                DEFAULT

Section 7.01  Events of Default; Master Servicer and Special
               Servicer Termination........................................
Section 7.02  Trustee to Act; Appointment of Successor.....................
Section 7.03  Notification to Certificateholders...........................
Section 7.04  Waiver of Events of Default..................................
Section 7.05  Trustee Advances.............................................

                              ARTICLE VIII

        CONCERNING THE TRUSTEE AND THE CERTIFICATE ADMINISTRATOR

Section 8.01  Duties of Trustee and Certificate Administrator..............
Section 8.02  Certain Matters Affecting the Trustee and the
               Certificate Administrator...................................
Section 8.03  Trustee and Certificate Administrator Not Liable
               for Validity or Sufficiency of Certificates or
               Loans.......................................................
Section 8.04  Trustee and Certificate Administrator May Own
               Certificates................................................
Section 8.05  Fees and Expenses of Trustee and Certificate
               Administrator; Reimbursements and Other Payments
               to Trustee..................................................
Section 8.06  Eligibility Requirements for Trustee and the
               Certificate Administrator...................................
Section 8.07  Resignation and Removal of the Trustee or
               Certificate Administrator...................................
Section 8.08  Successor Trustee or Certificate Administrator...............
Section 8.09  Merger or Consolidation of Trustee or Certificate
               Administrator...............................................
Section 8.10  Appointment of Co-Trustee or Separate Trustee................
Section 8.11  Appointment of Custodians....................................
Section 8.12  Access to Certain Information................................
Section 8.13  Representations, Warranties and Covenants of the
               Trustee.....................................................
Section 8.14  Representations, Warranties and Covenants of the
               Certificate Administrator...................................

                               ARTICLE IX

                              TERMINATION

Section 9.01  Termination Upon Repurchase or Liquidation of All
               Loans.......................................................
Section 9.02  Additional Termination Requirements..........................

                               ARTICLE X

                        MISCELLANEOUS PROVISIONS

Section 10.01 Amendment....................................................
Section 10.02 Recordation of Agreement; Counterparts.......................
Section 10.03 Limitation on Rights of Certificateholders...................
Section 10.04 Governing Law................................................
Section 10.05 Notices......................................................
Section 10.06 Severability of Provisions...................................
Section 10.07 Grant of a Security Interest.................................
Section 10.08 Successors and Assigns; Beneficiaries........................
Section 10.09 Article and Section Headings.................................
Section 10.10 Notices to Rating Agencies...................................

                               ARTICLE XI
          EXCHANGE ACT REPORTING AND REGULATION AB COMPLIANCE

Section 11.01 Intent of the Parties; Reasonableness........................
Section 11.02 Reserved.....................................................
Section 11.03 Information to be Provided by each Master Servicer,
               the Special Servicers, the Trustee, the
               Certificate Administrator and each Servicing
               Function Participant........................................
Section 11.04 Reserved.....................................................
Section 11.05 Filing Obligations...........................................
Section 11.06 Form 10-D Filings............................................
Section 11.07 Form 10-K Filings............................................
Section 11.08 Sarbanes-Oxley Certification.................................
Section 11.09 Form 8-K Filings.............................................
Section 11.10 Form 15 Filing; Incomplete Exchange Act Filings;
               Amendments to Exchange Act Reports..........................
Section 11.11 Annual Compliance Statements.................................
Section 11.12 Annual Reports on Assessment of Compliance with
               Servicing Criteria..........................................
Section 11.13 Annual Independent Public Accountants' Attestation...........
Section 11.14 Exchange Act Reporting Indemnification.......................
Section 11.15 Amendments...................................................
Section 11.16 Exchange Act Report Signatures; Delivery of
               Notices; Interpretation of Grace Periods....................
Section 11.17 Termination of the Certificate Administrator.................
Section 11.18 Certain Matters Relating to the Future
               Securitization of the Companion Loan........................

EXHIBITS

A-1      Form of Class A-1, Class A-1-A, Class A-2, Class A-AB, Class
         A-3, Class A-M and Class A-J Certificates
A-1A     Form of Class A-4FL Certificate
A-2      Form of Class A-X, Class A-SP and Class A-Y Certificates
A-3      Form of Class B, Class C, Class D, Class E, Class F, Class G,
         Class H, Class J, Class K, Class L, Class M, Class N, Class O,
         Class P, Class Q and Class S Certificates
A-4      Form of Class V Certificates
A-5      Form of Class R Certificates
B        Mortgage Loan Schedule
C-1      List of Additional Collateral Loans
C-2      List of Mezzanine Loans
D        Form of [Master] [Special] Servicer Request for Release
E        Form of Certificate Administrator Report
F-1A     Form I of Transferor Certificate for Transfers of
         Non-Registered Certificates
F-1B     Form II of Transferor Certificate for Transfers of
         Non-Registered Certificates
F-1C     Form I of Transferor Certificate for Transfers of Interests in
         Global Certificates for Classes of Non-Registered Certificates
F-1D     Form II of Transferor Certificate for Transfers of Interests
         in Global Certificates for Classes of Non-Registered
         Certificates
F-2A     Form I of Transferee Certificate for Transfers of
         Non-Registered Certificates Held in Physical Form
F-2B     Form II of Transferee Certificate for Transfers of
         Non-Registered Certificates Held in Physical Form
F-2C     Form I of Transferee Certificate for Transfers of Interests in
         Non-Registered Certificates Held in Book-Entry Form
F-2D     Form II of Transferee Certificate for Transfers of Interests
         in Non-Registered Certificates Held in Book-Entry Form
G-1      Form of Transferee Certificate in Connection with ERISA
         (Non-Registered Certificates and Non-Investment Grade
         Certificates Held in Fully Registered, Certificated Form)
G-2      Form of Transferee Certificate in Connection with ERISA
         (Non-Registered Certificates Held in Book-Entry Form)
H-1      Form of Residual Transfer Affidavit for Transfers of Class R
         Certificates
H-2      Form of Transferor Certificate for Transfers of Class R
         Certificates
I        Form of Acknowledgement of Proposed Special Servicer
J        Form of Lost Note Affidavit
K        List of Sub-Servicers
L        Form of Sarbanes-Oxley Certification
M        List of Broker Strip Loans
N        Schedule Of Reference Rates
O        Form of Custodial Certification
P        Form of Notice Regarding Defeasance of Mortgage Loan
Q        Form of Subordination Agreement of Co-op Loans
R        Reserved
S-1      Form of Information Request from Certificateholder or
         Certificate Owner
S-2      Form of Information Request from Prospective Investor
T        Class A-AB Targeted Principal Balance Table
U        Relevant Servicing Criteria
V        Additional Form 10-D Disclosure
W        Additional Form 10-K Disclosure
X        Form 8-K Disclosure
Y        Additional Notification Disclosure

<PAGE>

            This Pooling and Servicing Agreement (this "Agreement"), is dated as
of September 1, 2006, among CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES
CORP., as Depositor, KEYCORP REAL ESTATE CAPITAL MARKETS, INC, as Master
Servicer No. 1, NCB, FSB, as Master Servicer No. 2, LNR PARTNERS, INC., as
Special Servicer No. 1, NATIONAL CONSUMER COOPERATIVE BANK, as Special Servicer
No. 2, and WELLS FARGO BANK, N.A., as Trustee, and LASALLE BANK NATIONAL
ASSOCIATION, as Certificate Administrator and Paying Agent.

                             PRELIMINARY STATEMENT:

            The Depositor intends to sell commercial mortgage pass-through
certificates (collectively, the "Certificates"), to be issued under this
Agreement in multiple classes (each, a "Class"), which in the aggregate will
evidence the entire beneficial ownership interest in the trust fund (the "Trust
Fund") to be created hereunder, the primary assets of which will be a pool of
multifamily and commercial mortgage loans listed on Exhibit B hereto. As
provided herein, the Certificate Administrator shall elect or shall cause an
election to be made that each of the Upper-Tier REMIC, the Lower-Tier REMIC and
the 828-850 Madison Avenue Loan REMIC (each as defined herein) be treated for
federal income tax purposes as a "real estate mortgage investment conduit" (a
"REMIC"). The Excess Interest, the Grantor Trust Distribution Account, the
828-850 Madison Avenue Loan REMIC Residual Interest, the Class A-4FL Regular
Interest, the Swap Agreement and the Floating Rate Account (each as defined
herein) and the Broker Strip Interest (each as defined herein) shall not be
assets of any REMIC but shall be treated as assets of a grantor trust under
subpart E, Part I of subchapter J of the Code (the "Grantor Trust"). The Class V
Certificates will represent undivided beneficial interests in the portion of the
Grantor Trust consisting of the Excess Interest and the related proceeds thereof
in the Grantor Trust Distribution Account, each Broker Strip Payee shall be
treated as owning an undivided beneficial interest in the portion of the Grantor
Trust consisting of the related Broker Strip Interest and the related proceeds
thereof in the Grantor Trust Distribution Account, the Class R Certificates will
represent undivided beneficial interests in the portion of the Trust Fund
consisting of the 828-850 Madison Avenue Loan REMIC Residual Interest and the
related proceeds thereof in the Grantor Trust Distribution Account, and the
Class A-4FL Certificates will represent undivided beneficial interests in the
Class A-4FL Regular Interest, the Swap Agreement, the Floating Rate Account and
the related proceeds thereof in the Grantor Trust Distribution Account.
Additionally, the Trust shall not include any Junior Loan, any interest of any
Junior Loan Holder or any Junior Loan Custodial Account or any Companion Loan,
any interest of any Companion Loan Holder or any Companion Loan Custodial
Account.

                               UPPER-TIER REMIC

            As provided herein, the Certificate Administrator shall elect or
cause an election to be made to treat the segregated pool of assets consisting
of the Uncertificated Lower-Tier Interests and the proceeds thereof as a REMIC
for federal income tax purposes, and such segregated pool of assets will be
designated as the "Upper-Tier REMIC." The Class A-1, Class A-2, Class A-AB,
Class A-3, Class A-1-A, Class A-X, Class A-SP, Class A-Y, Class A-M, Class A-J,
Class B, Class C, Class D, Class E, Class F, Class G, Class H, Class J, Class K,
Class L, Class M, Class N, Class O, Class P, Class Q and Class S Certificates
and the Class A-4FL Regular Interest will evidence "regular interests" in the
Upper-Tier REMIC created hereunder. The sole class of "residual interests" in
the Upper-Tier REMIC will be evidenced by the Class R Certificates.

            The following table sets forth the designation, the initial
Pass-Through Rate (as defined herein), and the aggregate initial principal
amount (the "Original Class Principal Balance") or notional balance ("Original
Class Notional Amount"), as applicable, for each Class of Certificates
comprising the "regular interests" in the Upper-Tier REMIC:

<TABLE>
<CAPTION>
                                                            Original Class Principal Balance
                                                                (or, in the case of the
                                                           Class A-X, Class A-SP or Class A-Y
                                     Initial                  Certificates, Original Class
Class Designation              Pass-Through Rate(1)                 Notional Amount)
----------------------------   ------------------------    ----------------------------------
<S>                            <C>                         <C>
Class A-1                                    4.7710%(2)             $    68,884,000
Class A-2                                    5.3610%(2)             $    92,000,000
Class A-AB                                   5.4390%(2)             $   156,000,000
Class A-3                                    5.4670%(2)             $ 1,812,000,000
Class A-4FL Regular Interest                 5.4680%(3)             $   150,000,000
Class A-1-A                                  5.4600%(2)             $   712,280,000
Class A-X                                    0.0593%(4)             $ 4,273,091,953(5)
Class A-SP                                   0.5914%(6)             $ 4,039,124,000(5)
Class A-Y                                    0.1000%(7)             $   119,355,536(5)
Class A-M                                    5.5090%(2)             $   427,309,000
Class A-J                                    5.5380%(8)             $   341,847,000
Class B                                      5.5680%(9)             $    26,707,000
Class C                                      5.5220%(10)            $    64,097,000
Class D                                      5.6170%(11)            $    37,389,000
Class E                                      5.6470%(12)            $    21,366,000
Class F                                      5.6670%(13)            $    48,072,000
Class G                                      5.7260%(14)            $    42,731,000
Class H                                      5.9130%(15)            $    48,072,000
Class J                                      6.0120%(16)            $    48,072,000
Class K                                      6.0980%(17)            $    53,414,000
Class L                                      5.1480%(18)            $    10,683,000
Class M                                      5.1480%(18)            $    16,024,000
Class N                                      5.1480%(18)            $    16,024,000
Class O                                      5.1480%(18)            $     5,341,000
Class P                                      5.1480%(18)            $    10,683,000
Class Q                                      5.1480%(18)            $    10,683,000
Class S                                      5.1480%(18)            $    53,413,953
</TABLE>

------------
(1)  Expressed as a rate per annum. Approximate in the case of the Class A-X and
     Class A-SP Certificates.

(2)  Fixed Pass-Through Rate.

(3)  See definition of "Class A-4FL Regular Interest Pass-Through Rate" herein.

(4)  Variable Pass-Through Rate. See definition of "Class A-X Pass-Through Rate"
     herein.

(5)  Original Class Notional Amount. The Class A-X, Class A-SP and Class A-Y
     Certificates will not have principal amounts and will not entitle Holders
     to distributions of principal.

(6)  Variable Pass-Through Rate. See definition of "Class A-SP Pass-Through
     Rate" herein

(7)  Variable Pass-Through Rate. See definition of "Class A-Y Pass-Through Rate"
     herein.

(8)  Variable Pass-Through Rate. See definition of "Class A-J Pass-Through Rate"
     herein.

(9)  Variable Pass-Through Rate. See definition of "Class B Pass-Through Rate"
     herein.

(10) Variable Pass-Through Rate. See definition of "Class C Pass-Through Rate"
     herein.

(11) Variable Pass-Through Rate. See definition of "Class D Pass-Through Rate"
     herein.

(12) Variable Pass-Through Rate. See definition of "Class E Pass-Through Rate"
     herein.

(13) Variable Pass-Through Rate. See definition of "Class F Pass-Through Rate"
     herein.

(14) Variable Pass-Through Rate. See definition of "Class G Pass-Through Rate"
     herein.

(15) Variable Pass-Through Rate. See definition of "Class H Pass-Through Rate"
     herein.

(16) Variable Pass-Through Rate. See definition of "Class J Pass-Through Rate"
     herein.

(17) Variable Pass-Through Rate. See definition of "Class K Pass-Through Rate"
     herein.

(18) The lesser of 5.1480% and the Weighted Average Net Mortgage Rate.

The Class R Certificates will not have a principal amount or notional balance
and will not bear interest.

                                LOWER-TIER REMIC

            As provided herein, the Certificate Administrator shall elect or
cause an election to be made to treat the segregated pool of assets consisting
of the Loans (exclusive of the Broker Strip Interest and Excess Interest
thereon, the 828-850 Madison Avenue Loan and the 828-850 Madison Avenue Loan
REMIC Residual Interest), the 828-850 Madison Avenue Loan REMIC Regular Interest
and certain other related assets subject to this Agreement as a REMIC for
federal income tax purposes, and such segregated pool of assets will be
designated as the "Lower-Tier REMIC." The Class LA-1-1, Class LA-1-2, Class
LA-2-1, Class LA-2-2, Class LA-AB-1, Class LA-AB-2, Class LA-3-1, Class LA-3-2,
Class LA-3-3, Class LA-3-4, Class LA-3-5, Class LA-4FL, Class LA-1-A-1, Class
LA-1-A-2, Class LA-1-A-3, Class LA-1-A-4, Class LA-1-A-5, Class LA-1-A-6, Class
LA-1-A-7, Class LA-1-A-8, Class LA-M, Class LA-J, Class LA-Y, Class LB, Class
LC-1, Class LC-2, Class LD-1, Class LD-2, Class LE, Class LF-1, Class LF-2,
Class LG, Class LH-1, Class LH-2, Class LJ, Class LK, Class LL, Class LM, Class
LN, Class LO, Class LP, Class LQ and Class LS Lower-Tier Interests will
constitute "regular interests" in the Lower-Tier REMIC (the "Uncertificated
Lower-Tier Interests") created hereunder. The sole class of "residual interests"
in the Lower-Tier REMIC will be evidenced by the Class R Certificates.

            The following table sets forth, for each Class of Sequential Pay
Certificates and the Class A-Y Certificates (the "Corresponding Certificates"),
the corresponding Uncertificated Lower-Tier REMIC Interest or Interests (the
"Corresponding Uncertificated Lower-Tier Interests"), the corresponding
Component or Components of the Class A-X and Class A-SP Certificates (the
"Corresponding Components") and the Original Lower-Tier REMIC Principal Amount
or Original Lower-Tier Notional Balance for each Class of Uncertificated
Lower-Tier Interests.

                                           Original Lower
                                             Tier REMIC
                        Corresponding     Principal Amount      Corresponding
                       Uncertificated        or Original        Components of
   Corresponding         Lower-Tier          Lower-Tier      Class A-X and A-SP
    Certificates       Interests(1)(2)    Notional Balance     Certificates(1)
-------------------- ------------------ -------------------- -------------------
     Class A-1             LA-1-1             $    7,861,000        A-1-1
                           LA-1-2             $   61,023,000        A-1-2
     Class A-2             LA-2-1             $   75,372,000        A-2-1
                           LA-2-2             $   16,628,000        A-2-2
     Class A-AB            LA-AB-1            $  126,863,000       A-AB-1
                           LA-AB-2            $   29,137,000       A-AB-2
     Class A-3             LA-3-1             $  109,305,000        A-3-1
                           LA-3-2             $  206,998,000        A-3-2
                           LA-3-3             $  129,272,000        A-3-3
                           LA-3-4             $  144,363,000        A-3-4
                           LA-3-5             $1,222,062,000        A-3-5
    Class A-4FL            LA-4FL             $  150,000,000        A-4FL
    Class A-1-A           LA-1-A-1            $    1,769,000       A-1-A-1
                          LA-1-A-2            $   28,118,000       A-1-A-2
                          LA-1-A-3            $   29,148,000       A-1-A-3
                          LA-1-A-4            $   28,141,000       A-1-A-4
                          LA-1-A-5            $   62,827,000       A-1-A-5
                          LA-1-A-6            $   24,883,000       A-1-A-6
                          LA-1-A-7            $   23,744,000       A-1-A-7
                          LA-1-A-8            $  513,650,000       A-1-A-8
     Class A-M              LA-M              $  427,309,000         A-M
     Class A-J              LA-J              $  341,847,000         A-J
      Class B                LB               $   26,707,000          B
      Class C               LC-1              $   29,313,000         C-1
                            LC-2              $   34,784,000         C-2
      Class D               LD-1              $    4,356,000         D-1
                            LD-2              $   33,033,000         D-2
      Class E                LE               $   21,366,000         E-
      Class F               LF-1              $    4,898,000         F-1
                            LF-2              $   43,174,000         F-2
      Class G                LG               $   42,731,000          G
      Class H               LH-1              $   21,677,000         H-1
                            LH-2              $   26,395,000         H-2
      Class J                LJ               $   48,072,000          J
      Class K                LK               $   53,414,000          K
      Class L                LL               $   10,683,000          L
      Class M                LM               $   16,024,000          M
      Class N                LN               $   16,024,000          N
      Class O                LO               $    5,341,000          O
      Class P                LP               $   10,683,000          P
      Class Q                LQ               $   10,683,000          Q
      Class S                LS               $   53,413,953          S
     Class A-Y              LA-Y              $  119,355,536         N/A

------------

(1)   The Uncertificated Lower-Tier Interests and the Components of the Class
      A-X and Class A-SP Certificates that correspond to any particular Class of
      Sequential Pay Certificates (the "Corresponding Class of Sequential Pay
      Certificates") also correspond to each other and, accordingly, constitute
      the "Corresponding Uncertificated Lower-Tier Interests" and the
      "Corresponding Components," respectively, with respect to each other.

(2)   The interest rate of each of the indicated Classes of Uncertificated
      Lower-Tier Interests other than the Class LA-Y Lower-Tier Interest is the
      Weighted Average Net Mortgage Rate; with respect to the Class LA-Y
      Lower-Tier Interest is the Class A-Y Pass-Through Rate.

            The Class R Certificates will not have principal amounts or notional
balances and will not bear interest.

                        828-850 MADISON AVENUE LOAN REMIC

            As provided herein, the 828-850 Madison Avenue Loan will be treated
as a separate REMIC for federal income tax purposes pursuant to the REMIC
declaration dated as of September 7, 2006 (the "REMIC Declaration"), and such
REMIC will be designated the "828-850 Madison Avenue Loan REMIC". The 828-850
Madison Avenue Loan REMIC Regular Interest (as defined herein) will evidence the
"regular interest" in the 828-850 Madison Avenue Loan REMIC and will be held as
an asset of the Lower-Tier REMIC. The sole class of "residual interests" in the
828-850 Madison Avenue Loan REMIC created under the REMIC Declaration will be
the 828-850 Madison Avenue Loan REMIC Residual Interest and will be held in the
Grantor Trust and will be beneficially owned by the Class R Certificates.

            The parties intend that the portion of the Trust Fund consisting of
(i) Excess Interest and the Grantor Trust Distribution Account, (ii) the 828-850
Madison Avenue Loan REMIC Residual Interest, (iii) the Broker Strip Interests
and related amounts in the Collection Account and (iv) the Class A-4FL Regular
Interest, the Swap Agreement and the Floating Rate Account shall constitute, and
that the affairs of such portion of the Trust Fund shall be conducted so as to
qualify such portion as, a "grantor trust" under subpart E, Part I of subchapter
J of the Code.

            As of the close of business on the Cut-off Date (as defined herein),
the Loans had an aggregate principal balance, after application of all payments
of principal due on or before such date, whether or not received, equal to
$4,273,091,953.

            The 280 Park Avenue Total Loan consists of the 280 Park Avenue Loan
and the 280 Park Avenue Companion Loan. The 280 Park Avenue Loan and the 280
Park Avenue Companion Loan are pari passu with each other. The 280 Park Avenue
Loan is part of the Trust Fund. The 280 Park Avenue Companion Loan is not part
of the Trust Fund. The 280 Park Avenue Loan and the 280 Park Avenue Companion
Loan will be serviced and administered in accordance with this Agreement and the
280 Park Avenue Intercreditor Agreement.

            In consideration of the mutual agreements herein contained, the
Depositor, the Master Servicers, the Special Servicers, the Certificate
Administrator and the Trustee agree as follows:

                                   ARTICLE I

                                   DEFINITIONS

            Section 1.01 Defined Terms.

            Whenever used in this Agreement the following words and phrases,
unless the context otherwise requires, shall have the meanings specified in this
Article.

            "30/360 Basis": The accrual of interest based on a 360-day year
consisting of twelve 30-day months.

            "30/360 Mortgage Loan": A Mortgage Loan that accrues interest on a
30/360 Basis or the Fed Ex Central Distribution Center Loan during the related
Fixed Interest Period.

            "280 Park Avenue Control Group": The holders of more than 50% of the
outstanding principal balance of the 280 Park Avenue Total Loan (provided, that
the mortgage loans constituting the 280 Park Avenue Total Loan are deemed to
remain outstanding even if the related Mortgaged Property becomes an REO
Property), designated, for purposes of objecting to 280 Park Avenue Specially
Designated Servicing Actions proposed by the Special Servicer with respect to
the 280 Park Avenue Total Loan or any related REO Property, directing the
actions of the Special Servicer with respect to the 280 Park Avenue Total Loan
(if it constitutes a Specially Serviced Loan) or any related REO Property and/or
replacing the Special Servicer in respect of the 280 Park Avenue Total Loan or
any related REO Property.

            "280 Park Avenue Intercreditor Agreement": The Agreement Among
Noteholders dated as of September 28, 2006, by and between Column Financial,
Inc., as Initial Note A-1 Holder and Column Financial Inc., as Initial Note A-2
Holder

            "280 Park Avenue Loan": With respect to the 280 Park Avenue Total
Loan, the pari passu portion of such loan evidenced by Note A-1 in the amount of
$300,000,000, which is included in the Trust. The 280 Park Avenue Loan is a
"Loan."

            "280 Park Avenue Total Loan": The 280 Park Avenue Loan and the 280
Park Avenue Companion Loan, collectively.

            "3434 North Washington Boulevard Intercreditor Agreement": The
Agreement Among Noteholders dated as of August 18, 2006, by and between LaSalle
Bank National Association, as Initial Note A Holder and LEM Funding 202, L.P.
and LEM Parallel 202, L.P. as Initial Note B Holder.

            "3434 North Washington Boulevard Junior Loan": The mortgage loan
that is secured, on a subordinate basis, by the same Mortgage on the 3434 North
Washington Boulevard Property as the 3434 North Washington Boulevard Loan, has a
Cut-off Date Principal Balance of $4,500,000 and is evidenced by the Note
designated "Note B." The 3434 North Washington Boulevard Junior Loan is not a
"Loan" hereunder.

            "3434 North Washington Boulevard Junior Loan Holder": The holder of
the 3434 North Washington Boulevard Junior Loan or any successor REO Loan with
respect thereto.

            "3434 North Washington Boulevard Loan": With respect to the 3434
North Washington Boulevard Total Loan, the mortgage loan, with a Cut-off Date
Principal Balance of $64,000,000, that is included in the Trust Fund and secured
by a Mortgage on the 3434 North Washington Boulevard Property. The 3434 North
Washington Boulevard Loan is a "Loan."

            "3434 North Washington Boulevard Total Loan": The aggregate
indebtedness, with an original principal amount of $68,500,000 that is secured
by the related Mortgage on the Mortgaged Property identified as 3434 North
Washington Boulevard. References herein to the 3434 North Washington Boulevard
Total Loan shall be construed to refer to the aggregate indebtedness under the
3434 North Washington Boulevard Loan and the 3434 North Washington Boulevard
Junior Loan.

            "500 Sansome Office Intercreditor Agreement": The Agreement Among
Noteholders dated as of July 19, 2006, by and between Column Financial, Inc., as
Initial Note A Holder and LEM Funding XLIII, LP and LEM Parallel XLIII, LP as
Initial Note B Holder.

            "500 Sansome Office Junior Loan": The mortgage loan that is secured,
on a subordinate basis, by the same Mortgage on the Mortgaged Property
identified as 500 Sansome Office as the 500 Sansome Office Loan, has a Cut-off
Date Principal Balance of $2,600,000 and is evidenced by the Note designated
"Note B." The 500 Sansome Office Junior Loan is not a "Loan" hereunder.

            "500 Sansome Office Junior Loan Holder": The holder of the 500
Sansome Office Junior Loan or any successor REO Loan with respect thereto.

            "500 Sansome Office Loan": With respect to the 500 Sansome Office
Total Loan, the mortgage loan, with a Cut-off Date Principal Balance of
$24,400,000, that is included in the Trust Fund and secured by a Mortgage on the
500 Sansome Office Property. The 500 Sansome Office Loan is a "Loan."

            "500 Sansome Office Total Loan": The aggregate indebtedness, with an
original principal amount of $27,000,000 that is secured by the related Mortgage
on the 500 Sansome Office Property. References herein to the 500 Sansome Office
Total Loan shall be construed to refer to the aggregate indebtedness under the
500 Sansome Office Loan and the 500 Sansome Office Junior Loan.

            "828-850 Madison Avenue Intercreditor Agreement": The Agreement
Among Noteholders dated as of November 18, 2005, by and between Column
Financial, Inc., as Initial Note A Holder and LRP Landesbank Rheinland-Pfalz as
Initial Note B Holder.

            "828-850 Madison Avenue Junior Loan": The mortgage loan that is
secured, on a subordinate basis, by the same Mortgage on the 828-850 Madison
Avenue Property as the 828-850 Madison Avenue Loan, has a Cut-off Date Principal
Balance of $20,000,000 and is evidenced by the Note designated "Note B." The
828-850 Madison Avenue Junior Loan is not a "Loan" hereunder.

            "828-850 Madison Avenue Junior Loan Holder": The holder of the
828-850 Madison Avenue Junior Loan or any successor REO Loan with respect
thereto.

            "828-850 Madison Avenue Loan": With respect to the 828-850 Madison
Avenue Total Loan, the mortgage loan, with a Cut-off Date Principal Balance of
$60,000,000, that is included in the Trust Fund and secured by a Mortgage on the
828-850 Madison Avenue Property. The 828-850 Madison Avenue Loan is a "Loan."

            "828-850 Madison Avenue Loan REMIC" shall mean the REMIC that was
created pursuant to the REMIC Declaration and that is constituted by the 828-850
Madison Avenue Loan, collections thereon, any REO Property acquired in respect
thereof and amounts held from time to time in the Collection Account or any REO
Account in respect thereof, with respect to which the Certificate Administrator
will make an election to be treated as a "real estate mortgage investment
conduit" within the meaning of the REMIC Provisions.

            "828-850 Madison Avenue Loan REMIC Regular Interest" shall mean the
uncertificated regular interest in the 828-850 Madison Avenue Loan. The
principal balance of the 828-850 Madison Avenue Loan REMIC Regular Interest
shall equal the outstanding Stated Principal Balance of the 828-850 Madison
Avenue Loan (or, if applicable, the deemed Stated Principal Balance of any
successor REO Mortgage Loan). Payments of principal, interest and prepayment
premiums received on or in respect of the 828-850 Madison Avenue Loan (or any
beneficial interest in any related Mortgaged Property) shall be deemed
distributable on the 828-850 Madison Avenue Loan REMIC Regular Interest, and
other collections of amounts received on or in respect of the 828-850 Madison
Avenue Loan shall be deemed distributable to the Trust Fund other than on the
828-850 Madison Avenue Loan REMIC Regular Interest.

            "828-850 Madison Avenue Loan REMIC Residual Interest" shall mean,
the sole class of "residual interest" in the 828-850 Madison Avenue Loan REMIC,
represented by the Class R Certificates.

            "828-850 Madison Avenue Property": The Mortgaged Property identified
on the Mortgage Loan Schedule as "828-850 Madison Avenue."

            "828-850 Madison Avenue Total Loan": The aggregate indebtedness,
with an original principal amount of $80,000,000 that is secured by the related
Mortgage on the 828-850 Madison Avenue Property. References herein to the
828-850 Madison Avenue Total Loan shall be construed to refer to the aggregate
indebtedness under the 828-850 Madison Avenue Loan and the 828-850 Madison
Avenue Junior Loan.

            "A Loan": The 280 Park Avenue Loan, the 500 Sansome Office Loan, the
828-850 Madison Avenue Loan, the 3434 North Washington Boulevard. Loan and each
CBA A Loan, each of which are senior in right of payment to the related Junior
Loan(s), if applicable, and pari passu in right of payment to the related
Companion Loan, if applicable.

            "A Note": With respect to any A Loan, the Mortgage Note included in
the Trust Fund, which is senior in right of payment to the related Junior Loan,
if any, and pari passu in right of payment to the related Companion Loan, if
applicable, in each case to the extent set forth in the related Intercreditor
Agreement.

            "Accrued Certificate Interest Amount": With respect to each
Distribution Date and each Class of Regular Certificates and the Class A-4FL
Regular Interest, an amount equal to interest for the related Interest Accrual
Period at the Pass-Through Rate applicable to such Class of Certificates or the
Class A-4FL Regular Interest, as applicable, for such Distribution Date, accrued
on the related Class Principal Balance of such Class (or, in the case of a Class
of Interest-Only Certificates, on the Class Notional Amount thereof) immediately
prior to such Distribution Date; with respect to the Class A-4FL Regular
Interest, one month's interest at the Pass-Through Rate for the Class A-4FL
Regular Interest for such Distribution Date, accrued on the related Class
Principal Balance as of the last day of the month immediately preceding such
Distribution Date. The Accrued Certificate Interest Amount for each such Class
shall be calculated on a 30/360 Basis.

            "Accrued Component Interest Amount": With respect to each Component
of the Class A-X and Class A-SP Certificates for any Distribution Date, an
amount equal to interest for the related Interest Accrual Period at the Class
A-X Strip Rate or Class A-SP Strip Rate, as applicable, with respect to such
Component for such Distribution Date, accrued on the Component Notional Amount
of such Component outstanding immediately prior to such Distribution Date. The
Accrued Component Interest Amount for each Component shall be calculated on a
30/360 Basis.

            "Actual/360 Basis": The accrual of interest based on the actual
number of days elapsed during each one-month accrual period in a year assumed to
consist of 360 days.

            "Additional Collateral": With respect to the Additional Collateral
Loan, the cash reserve or irrevocable letter of credit partially securing such
Additional Collateral Loan.

            "Additional Collateral Loan": Any of the Loans identified on Exhibit
C-1 hereto.

            "Additional Disclosure Notification:" The form of notification to be
included with any Additional Form 10-D Disclosure, Additional Form 10-K
Disclosure or Form 8-K Disclosure Information which is attached hereto as
Exhibit Y.

            "Additional Form 10-D Disclosure:" As defined in Section 11.06.

            "Additional Form 10-K Disclosure:" As defined in Section 11.07.

            "Additional Servicer": Individually or collectively, (x) each
Affiliate of any party as described by Section 1108(a)(2)(ii) of Regulation AB
that Services any of the Loans and (y) each Person who is not an Affiliate of
any party as described by Section 1108(a)(2)(iii) of Regulation AB, other than
the Trustee, who Services 10% or more of the Loans (calculated by Stated
Principal Balance).

            "Additional Servicing Compensation": As defined in Section 3.11(a).

            "Additional Trust Fund Expenses": An expense of the Trust Fund that
(i) arises out of a default on a Loan or Serviced Loan Combination or an
otherwise unanticipated event, (ii) is not covered by a Servicing Advance or a
corresponding collection from the related Borrower and (iii) does not represent
a loss on a Loan arising from the inability of a Master Servicer and/or a
Special Servicer to collect all amounts due and owing under the Loan, including
by reason of the fraud or bankruptcy of the Borrower or, to the extent not
covered by insurance, a casualty of any nature at a Mortgaged Property;
provided, however, that, "Additional Trust Fund Expense" shall not include any
of the foregoing amounts that have been recovered from the related Borrower or
Mortgaged Property.

            "Advance": Any P&I Advance or Servicing Advance.

            "Advance Interest": The interest accrued on any Advance at the
Reimbursement Rate, which is payable to the party hereto that made that Advance,
all in accordance with Section 3.03(d) or Section 4.03(d), as applicable.

            "Adverse REMIC Event": As defined in Section 3.30(f).

            "Affiliate": With respect to any specified Person, any other Person
controlling or controlled by or under common control with such specified Person.
For the purposes of this definition, "control" when used with respect to any
specified Person means the power to direct the management and policies of such
Person, directly or indirectly, whether through the ownership of voting
securities, by contract or otherwise and the terms "controlling" and
"controlled" have meanings correlative to the foregoing.

            "Agreement": This Pooling and Servicing Agreement and all amendments
hereof and supplements hereto.

            "Anticipated Repayment Date": With respect to any ARD Loan,
designated as such on the Mortgage Loan Schedule, the date upon which such ARD
Loan starts to accrue interest at its Revised Rate.

            "Appraisal": An appraisal prepared in accordance with 12 C.F.R. ss.
225.64 by an Appraiser selected by the Master Servicer or Special Servicer, as
applicable.

            "Appraisal Reduction Amount": For any Distribution Date and for any
Loan as to which an Appraisal Reduction Event has occurred, an amount calculated
by the applicable Special Servicer equal to the excess, if any, of: (a) the
Stated Principal Balance of such Loan; over (b) the excess, if any, of (i) the
sum of (A) 90% of the Appraised Value (as such Appraised Value may be adjusted
downward by the applicable Special Servicer in accordance with the Servicing
Standard, without implying any duty to do so, based on the applicable Special
Servicer's review of the Appraisal or such other information as the applicable
Special Servicer deems relevant) of the related Mortgaged Property as determined
(1) with respect to any Loan with an outstanding principal balance equal to or
greater than $2,000,000, by one or more Appraisals (the costs of which shall be
paid by the applicable Master Servicer as a Servicing Advance) or (2) with
respect to any Loan with an outstanding principal balance less than $2,000,000,
by an Appraisal (or an update of a prior Appraisal) (the costs of which shall be
paid by the applicable Master Servicer as a Servicing Advance) or an internal
valuation performed by the applicable Special Servicer, plus (B) any letter of
credit, reserve, escrow or similar amount held by the applicable Master Servicer
which are posted as additional security for payments due on the Loan, over (ii)
the sum of (X) to the extent not previously advanced by the applicable Master
Servicer or the Trustee, all unpaid interest on such Loan at a per annum rate
equal to its Mortgage Rate, (Y) all unreimbursed Advances in respect of such
Loan, together with interest thereon at the Reimbursement Rate, and (Z) all
currently due and unpaid real estate taxes and assessments, Insurance Policy
premiums, ground rents and all other amounts due and unpaid with respect to such
Loan, net of any amounts currently escrowed for such amounts (which taxes,
assessments, premiums, ground rents and other amounts have not been subject to
an Advance by the applicable Master Servicer or the Trustee); provided that, if
neither a required Appraisal has been obtained nor an internal valuation is
completed within the period required under Section 3.19(c) with respect to such
Loan, then until such Appraisal is obtained or such internal valuation is
completed, as the case may be, in accordance with Section 3.19(c) the Appraisal
Reduction Amount shall be equal to 25% of the Stated Principal Balance of such
Loan as of the date of the related Appraisal Reduction Event; and provided,
further, that, if the related Mortgaged Property has become an REO Property,
then references to "Loan" above in this definition shall include any successor
REO Loan with respect to the subject Loan.

            In the case of the 280 Park Avenue Loan (or any successor REO Loan
with respect thereto), any Appraisal Reduction Amount will be calculated in
respect of the 280 Park Avenue (or any successor REO Loans with respect
thereto), as if it was a single Loan (or single REO Loan), and any Appraisal
Reduction Amount shall be allocated between the 280 Park Avenue and the related
Companion Loan, pro rata according to their respective principal balances.

            In the case of the 828-850 Madison Avenue Loan (or any successor REO
Loan with respect thereto), any Appraisal Reduction Amount will be calculated in
respect of the 828-850 Madison Avenue Total Loan (or any successor REO Loans
with respect thereto), as if it was a single Loan (or single REO Loan), and any
Appraisal Reduction Amount shall be allocated first to the 828-850 Madison
Avenue Junior Loan (or any successor REO Loan with respect thereto), up to the
outstanding principal balance of such Junior Loan (or REO Loan), and then to the
828-850 Madison Avenue Loan (or any successor REO Loan with respect thereto).

            In the case of the 3434 North Washington Boulevard Loan (or any
successor REO Loan with respect thereto), any Appraisal Reduction Amount will be
calculated in respect of the 3434 North Washington Boulevard Total Loan (or any
successor REO Loans with respect thereto), as if it was a single Loan (or single
REO Loan), and any Appraisal Reduction Amount shall be allocated first to the
3434 North Washington Boulevard Junior Loan (or any successor REO Loan with
respect thereto), up to the outstanding principal balance of such Junior Loan
(or REO Loan), and then to the 3434 North Washington Boulevard Loan (or any
successor REO Loan with respect thereto).

            In the case of the 500 Sansome Office Loan (or any successor REO
Loan with respect thereto), any Appraisal Reduction Amount will be calculated in
respect of the 500 Sansome Office Total Loan (or any successor REO Loans with
respect thereto), as if it was a single Loan (or single REO Loan), and any
Appraisal Reduction Amount shall be allocated first to the 500 Sansome Office
Junior Loan (or any successor REO Loan with respect thereto), up to the
outstanding principal balance of such Junior Loan (or REO Loan), and then to the
500 Sansome Office Loan (or any successor REO Loan with respect thereto).

            In the case of any CBA A Loan (or any successor REO Loan with
respect thereto), any Appraisal Reduction Amount will be calculated in respect
of the related CBA A/B Loan Pair (or any successor REO Loans with respect
thereto), as if it was a single Loan (or a single REO Loan), and any Appraisal
Reduction Amount shall first be allocated to the related CBA B Loan (or any
successor REO Loan with respect thereto), up to the outstanding principal
balance of such Junior Loan (or REO Loan), and then any remaining portion of any
such Appraisal Reduction Amount shall be allocated to the related CBA A Loan (or
any successor REO Loan with respect thereto).

            Notwithstanding anything herein to the contrary, the aggregate
Appraisal Reduction Amount related to a Loan or any successor REO Loan with
respect thereto will be reduced to zero as of the date such Loan or such REO
Loan (or the related REO Property) is paid in full, liquidated, repurchased or
otherwise removed from the Trust Fund.

            "Appraisal Reduction Event": With respect to any Loan, the earliest
of (i) 120 days after an uncured delinquency (without regard to the application
of any grace period) occurs in respect of such Loan or any related Junior Loan
or Companion Loan (except that with respect to a Balloon Payment, such date may
extend until the Loan becomes a Specially Serviced Loan), (ii) the date on which
a reduction in the amount of Monthly Payments on such Loan, or a change in any
other material economic term of such Loan (other than an extension of the
Maturity Date for a period of six months or less), becomes effective as a result
of a modification of such Loan by the applicable Special Servicer, (iii) 60 days
after a receiver has been appointed and remains undismissed for the Borrower or
immediately after a receiver has been appointed for the related Mortgaged
Property, (iv) 30 days after a Borrower declares bankruptcy, (v) 60 days after
the Borrower has become the subject of a decree or order for a bankruptcy
proceeding that shall have remained in force undischarged and unstayed, and (vi)
immediately after such Loan becomes an REO Loan; provided, however, that there
shall be no reduction in P&I Advances if an Appraisal Reduction Event shall
occur on and after the dates when the aggregate of the Class Principal Balances
of all Classes of Sequential Pay Certificates (other than the Class A Sequential
Pay Certificates) have been reduced to zero. The Special Servicer shall notify
the Master Servicer, the Trustee and, with respect to any Loan Combination, the
related Junior Loan Holder or Companion Loan Holder, promptly upon the
occurrence of any of the foregoing events. With respect to the 3434 North
Washington Boulevard Loan, Appraisal Reduction Event shall have the meaning set
forth in the related Intercreditor Agreement, for purposes of determining
whether a change of control has occurred.

            "Appraised Value": With respect to any Mortgaged Property (other
than a residential cooperative property), the appraised value thereof (as is) as
determined by the most recent Appraisal obtained or conducted, as appropriate,
pursuant to this Agreement or obtained in connection with the origination of the
Loan, and with respect to any Mortgaged Property that is a residential
cooperative property, the value of such property as shown in the most recent
Appraisal obtained or conducted, as appropriate, pursuant to this Agreement, or
obtained in connection with the origination of the Loan, as applicable, and
determined as if such property were operated as a cooperatively-owned
multifamily residential building (generally equaling the gross sellout value of
all cooperative units in such residential cooperative property (applying a
discount as determined by the appraiser for rent regulated and rent controlled
units) plus the amount of the underlying debt encumbering such residential
cooperative property).

            "Appraiser": An Independent MAI, state certified organization with
five years of experience in properties of like kind and in the same geographic
area.

            "ARD Loan": Any Loan that is designated as such on the Mortgage Loan
Schedule.

            "Asset Status Report": As defined in Section 3.21(e).

            "Assignable Primary Servicing Fee": Any Primary Servicing Fee that
is payable to Master Servicer No. 1 or Master Servicer No. 2 or their permitted
assignee pursuant to Section 3.11(a) and subject to reduction by the Trustee
pursuant to Section 3.11(a).

            "Assignment of Leases": With respect to any Mortgaged Property, any
assignment of leases, rents and profits or similar instrument, executed by the
related Borrower, assigning to the related mortgagee all of the income, rents
and profits derived from the ownership, operation, leasing or disposition of all
or a portion of such Mortgaged Property, in the form which was duly executed,
acknowledged and delivered, as amended, modified, renewed or extended through
the date hereof and from time to time hereafter.

            "Assumed Scheduled Payment": For any Due Period shall mean the
following:

            (a) with respect to any Loan, Companion Loan or Junior Loan that is
      delinquent in respect of its Balloon Payment (and, if applicable, any
      successor REO Loan with respect thereto as to which the Balloon Payment
      would have been past due), an amount equal to the sum of (i) the principal
      portion of the Monthly Payment that would have been due on such Loan,
      Companion Loan or Junior Loan on the related Due Date based on the
      constant payment required by the related Note or the original amortization
      schedule thereof (as calculated with interest at the related Mortgage
      Rate), if applicable, assuming such Balloon Payment had not become due
      (and, if applicable, assuming the related Mortgaged Property had not
      become an REO Property), after giving effect to any modification of such
      Loan, Companion Loan or Junior Loan, and (ii) one month's interest on the
      Stated Principal Balance of such Loan or Junior Loan (or, if applicable,
      any successor REO Loan with respect thereto) as of the end of such Due
      Period at the applicable Mortgage Rate (less the related Master Servicing
      Fee Rate and Primary Servicing Fee Rate). The amount of the Assumed
      Scheduled Payment for any A Loan, Companion Loan or Junior Loan shall be
      calculated solely by reference to the terms of such A Loan, Companion Loan
      or Junior Loan, as applicable (as modified in connection with any
      bankruptcy or similar proceeding involving the related Borrower or
      pursuant to a modification, waiver or amendment thereof granted or agreed
      to by the applicable Master Servicer or the applicable Special Servicer
      pursuant to the terms hereof) and without regard to the remittance
      provisions of the related Intercreditor Agreement; and

            (b) any REO Loan that is not delinquent in respect of its Balloon
      Payment, an amount equal to the sum of (i) the principal portion of the
      Monthly Payment that would have been due on the related Loan on the
      related Due Date based on the original amortization schedule thereof (as
      calculated with interest at the related Mortgage Rate), if applicable,
      assuming the related Mortgaged Property had not become an REO Property,
      after giving effect to any modification of the related Loan, and (ii) one
      month's interest on the Stated Principal Balance of such REO Loan as of
      the end of such Due Period at the applicable Mortgage Rate.

            "Available Distribution Amount": With respect to any Distribution
Date, an amount equal to the sum (without duplication) of:

            (a) the aggregate amount received on or with respect to the Loans
      (and any related REO Properties) on or prior to the related Determination
      Date and on deposit in the respective Collection Accounts as of the close
      of business on the Business Day preceding the Master Servicer Remittance
      Date, exclusive of any portion of such aggregate amount that is comprised
      of one or more of the following amounts (without duplication):

                  (i) all Monthly Payments collected but due on a Due Date after
            the end of the related Due Period;

                  (ii) all amounts in the Collection Accounts that are payable
            or reimbursable to any Person from any such account pursuant to
            clauses (iii) through (xvii), inclusive, and clauses (xix), (xx) and
            (xxi) of Section 3.05(a);

                  (iii) all amounts that are payable or reimbursable to any
            Person from the Distribution Account pursuant to clauses (iii)
            through (vi), inclusive, of Section 3.05(b);

                  (iv) all Yield Maintenance Charges and all Static Prepayment
            Premiums;

                  (v) all amounts deposited in any Collection Account in error;

                  (vi) any net interest or net investment income on funds on
            deposit in any Collection Account or any REO Account or in Permitted
            Investments in which such funds may be invested;

                  (vii) with respect to any Distribution Date relating to each
            Interest Accrual Period ending in each February or in any January in
            a year which is not a leap year (unless, in either case, the related
            Distribution Date is the Final Distribution Date), the Withheld
            Amounts in respect of the Interest Reserve Loans that are to be
            deposited in the Interest Reserve Account on such Distribution Date
            and held for future distribution pursuant to Section 3.28;

                  (viii) all amounts received with respect to a Serviced Loan
            Combination that are required to be paid to any related Junior Loan
            Holder and/or Companion Loan Holder, as applicable, pursuant to the
            terms of the related Junior Loan and/or Companion Loan, as
            applicable, and the related Intercreditor Agreement (which amounts
            will be deposited into the related Junior Loan Custodial Account or
            Companion Loan Custodial Account pursuant to Section 3.04 and/or
            Section 3.05, and withdrawn from such accounts pursuant to Section
            3.05);

                  (ix) Excess Interest; and

                  (x) Excess Liquidation Proceeds;

            (b) if and to the extent not already included in clause (a) hereof,
      the aggregate amount transferred with respect to the REO Loans in the
      Mortgage Pool from any REO Account to any Collection Account for such
      Distribution Date pursuant to Section 3.16(c);

            (c) the aggregate amount of any P&I Advances made in respect of the
      Mortgage Pool by the Master Servicers and/or the Trustee, as applicable,
      for such Distribution Date pursuant to Section 4.03 or 7.05, which P&I
      Advances shall not include any related Master Servicing Fees, Primary
      Servicing Fees or Workout Fees;

            (d) all funds released from the Interest Reserve Account for
      distribution on such Distribution Date, and with respect to the first
      Distribution Date, the Closing Date Deposit Amount deposited into the
      Distribution Account pursuant to Section 2.01(j);

            (e) any and all payments required to be made by the Master Servicers
      pursuant to Section 3.02(e);

            (f) the aggregate amount transferred (pursuant to Section 3.05(d))
      from the Excess Liquidation Proceeds Account to the Distribution Account
      in respect of such Distribution Date; and

            (g) if and to the extent not already included in clause (a) hereof,
      any Cure Payment (except for any portion thereof payable or reimbursable
      to the applicable Master Servicer or Special Servicer), made by the
      828-850 Madison Avenue Junior Loan Holder, the 3434 North Washington
      Boulevard Junior Loan Holder or any CBA B Loan Holder pursuant to the
      terms of the related Intercreditor Agreement during the related Due Period
      and allocable to principal or interest with respect to the related Loan.

            "Balloon Loan": Any Loan, Companion Loan or Junior Loan that by its
terms provides for an amortization schedule extending materially beyond its
Maturity Date or for no amortization prior to its Maturity Date.

            "Balloon Payment": With respect to any Balloon Loan and any date of
determination, the scheduled payment of principal due on the Maturity Date of
such Balloon Loan (less principal included in the applicable amortization
schedule or scheduled Monthly Payment).

            "Bankruptcy Code": The federal Bankruptcy Code, as amended from time
to time (Title 11 of the United States Code).

            "BCRE Loan": The mortgage loan transferred to the Depositor pursuant
to the BCRE Mortgage Loan Purchase Agreement and identified on Schedule II
thereto, together with any mortgage loans substituted in replacement thereof
pursuant to the BCRE Mortgage Loan Purchase Agreement.

            "BCRE Mortgage Loan Purchase Agreement": The agreement between the
Depositor as purchaser and the BCRE Mortgage Loan Seller as seller, dated as of
September 1, 2006, relating to the transfer of all of the BCRE Mortgage Loan
Seller's right, title and interest in and to the mortgage loans identified on
Schedule II thereto.

            "BCRE Mortgage Loan Seller" or "BCRE": Barclays Capital Real Estate
Inc. and its successors in interest.

            "Base Interest Fraction": With respect to any Principal Prepayment
or other early collection of principal on any Loan (or any successor REO Loan
with respect thereto) and any of the Class A-1, Class A-1-A, Class A-2, Class
A-3, Class A-AB, Class A-M, Class -J, Class B, Class C, Class D, Class E, Class
F, Class G, Class H, Class J and Class K Certificates and the Class A-4FL
Regular Interest, a fraction (not greater than 1) (a) whose numerator is the
amount, if any, by which (i) the Pass-Through Rate on such Class of Certificates
or Class A-4FL Regular Interest exceeds (ii) the Yield Rate used in calculating
the Yield Maintenance Charge with respect to such Principal Prepayment or other
early collection of principal and (b) whose denominator is the amount, if any,
by which the (i) Mortgage Rate on such Loan (or REO Loan) exceeds (ii) the Yield
Rate (as provided by the applicable Master Servicer) used in calculating the
Yield Maintenance Charge with respect to such Principal Prepayment or other
early collection of principal; provided, however, that if such Yield Rate is
greater than or equal to the lesser of (x) the Mortgage Rate on such Loan (or
REO Loan) and (y) the Pass-Through Rate described in clause (a)(i) above, then
the Base Interest Fraction shall be zero.

            "Book-Entry Certificate": Any Certificate registered in the name of
the Depository or its nominee.

            "Book-Entry Non-Registered Certificate": Any Non-Registered
Certificate that constitutes a Book-Entry Certificate.

            "Borrower": With respect to any Loan, the obligor or obligors on any
related Note or Notes, including, without limitation, any Person that has
acquired the related Mortgaged Property and assumed the obligations of the
original obligor under the Note or Notes.

            "Breach": As defined in Section 2.03(b).

            "Broker Strip": With respect to each Broker Strip Loan, the right to
receive interest accrued on the principal balance of such Loan at the Broker
Strip Rate for such Loan.

            "Broker Strip Interest": With respect to each Broker Strip Loan,
interest accrued on the principal balance of such loan at the Broker Strip Rate
for such Loan.

            "Broker Strip Loans": The Loans listed on Exhibit M hereto.

            "Broker Strip Payee": With respect to any Broker Strip Loan, the
"Broker Strip Payee" specified on Exhibit M hereto with respect to such Loan.

            "Broker Strip Rate": With respect to each Broker Strip Loan, the
"Broker Strip Rate" specified on Exhibit M hereto with respect to such Loan.

            "Business Day": Any day other than a Saturday, a Sunday or a day on
which banking institutions in the states where any Collection Account, the
Distribution Account, the Trustee, the Certificate Administrator, any Master
Servicer or any Special Servicer are located, are authorized or obligated by law
or executive order to remain closed.

            "Cash Collateral Account": With respect to any Loan that has a
Lock-Box Account, any account or accounts created pursuant to the related
Mortgage, Loan Agreement, Cash Collateral Account Agreement or other Loan
Document, into which account or accounts the Lock-Box Account monies are swept
on a regular basis for the benefit of the Trustee as successor to the applicable
Mortgage Loan Seller's interest in such Loan. Any Cash Collateral Account shall
be beneficially owned for federal income tax purposes by the Person who is
entitled to receive all reinvestment income or gain thereon in accordance with
the terms and provisions of the related Loan and Section 3.06, which Person (and
not the Trust) may be taxed on all reinvestment income or gain thereon. The
applicable Master Servicer shall be permitted to make withdrawals therefrom
solely for deposit into a Collection Account or a Servicing Account, or to remit
to the Borrower as required by the related Loan Documents, as applicable. To the
extent not inconsistent with the terms of the related Loan, each such Cash
Collateral Account shall be an Eligible Account.

            "Cash Collateral Account Agreement": With respect to any Loan, the
cash collateral account agreement, if any, between the related Mortgage Loan
Originator and the related Borrower, pursuant to which the related Cash
Collateral Account, if any, may have been established.

            "CBA A Loan": The Loans secured by the Mortgaged Properties
identified on the Mortgage Loan Schedule as The Cottages of Fall Creek, The
Orchard Apartments, Briarwood Apartments, 833 Jackson & 322 Green, Regional
Professional Building, Pavilions Shopping Center and McKnight Retail,
respectively, each of which Loans are senior in right of payment to the related
CBA B Loan, to the extent set forth in the related CBA Intercreditor Agreement.

            "CBA A/B Loan Pair": Any CBA A Loan together with the related CBA B
Loan.

            "CBA A/B Material Default": With respect to a CBA A/B Loan Pair, a
"Material Default" under, and within the meaning of, the related Intercreditor
Agreement.

            "CBA B Loan": With respect to each CBA A Loan, the mortgage loan
secured, on a subordinate basis, by the same Mortgage on the same Mortgaged
Property as such CBA A Loan, which subordinate mortgage loan is not included in
the Trust Fund.

            "CBA B Loan Holder": With respect to any CBA A/B Loan Pair,
CBA-Mezzanine Capital Finance, LLC or its successors and assigns, as the holder
of the related CBA B Loan.

            "CBA Intercreditor Agreement": With respect to each CBA A/B Loan
Pair, the related intercreditor agreement entered into by and between the holder
of the related CBA A Loan and the related CBA B Loan Holder, as the same may be
further amended from time to time in accordance with the terms thereof.

            "CERCLA": The Comprehensive Environmental Response, Compensation and
Liability Act of 1980, as amended.

            "Certificate": Any one of the Depositor's Commercial Mortgage
Pass-Through Certificates, Series 2006-C4, as executed by the Trustee or
Certificate Registrar and authenticated and delivered hereunder by the
Certificate Registrar.

            "Certificate Administrator": LaSalle Bank National Association, and
its successor in interest.

            "Certificate Administrator Account": As defined in Section 3.06(a).

            "Certificate Administrator Report": As defined in Section 4.02(a).

            "Certificate Notional Amount": With respect to any Class A-X, Class
A-SP or Class A-Y Certificate, as of any date of determination, the then
notional amount of such Certificate equal to the product of (a) the Percentage
Interest evidenced by such Certificate, multiplied by (b) the then Class A-X,
Class A-SP or Class A-Y Notional Amount, as applicable.

            "Certificate Owner": With respect to a Book-Entry Certificate, the
Person who is the beneficial owner of such Certificate as reflected on the books
of the Depository or on the books of a Depository Participant or on the books of
an indirect participating brokerage firm for which a Depository Participant acts
as agent.

            "Certificate Principal Balance": With respect to any Sequential Pay
Certificate, as of any date of determination, the then principal balance of such
Certificate equal to the product of (a) the Percentage Interest evidenced by
such Certificate, multiplied by (b) the then Class Principal Balance of the
subject Class of Sequential Pay Certificates.

            "Certificate Register" and "Certificate Registrar": The register
maintained and the registrar appointed pursuant to Section 5.02.

            "Certificateholder" or "Holder": The Person in whose name a
Certificate is registered in the Certificate Register; provided, however, that
solely for the purposes of giving any consent, approval or waiver pursuant to
this Agreement with respect to the rights, obligations or liabilities of the
Trustee, a Master Servicer or a Special Servicer, any Certificate registered in
the name of such Trustee, Master Servicer, Special Servicer or any Affiliate of
any of them, as applicable, shall be deemed not to be outstanding, and the
Voting Rights to which it is entitled shall not be taken into account in
determining whether the requisite percentage of Voting Rights necessary to
effect any such consent, approval or waiver has been obtained; provided that (i)
such restrictions shall not apply to the selection of the Controlling Class (or
the Directing Certificateholder) or the exercise of a Special Servicer's or its
Affiliates' rights as a member of the Controlling Class and (ii) the foregoing
shall not apply if the Trustee, a Master Servicer or a Special Servicer, as the
case may be, and/or their Affiliates, own the entire Class of each Class of
Certificates affected by such action, vote, consent or waiver. The Trustee shall
be entitled to request and conclusively rely upon a certificate of a Master
Servicer or a Special Servicer in determining whether a Certificate is
registered in the name of an Affiliate of such Person. All references herein to
"Holders" or "Certificateholders" shall reflect the rights of Certificate Owners
as they may indirectly exercise such rights through the Depository and the
Depository Participants, except as otherwise specified herein; provided,
however, that the parties hereto shall be required to recognize as a "Holder" or
"Certificateholder" only the Person in whose name a Certificate is registered in
the Certificate Register.

            "Certification Parties" has the meaning set forth in Section 11.08.

            "Certifying Person" has the meaning set forth in Section 11.08.

            "Certifying Servicer" has the meaning set forth in Section 11.11.

            "Class": With respect to any Certificates or Uncertificated
Lower-Tier Interests or the Class A-4FL Regular Interest, all of the
Certificates bearing the same alphabetical and, if applicable, numerical class
designation and each designation of Uncertificated Lower-Tier Interests or the
Class A-4FL Regular Interest.

            "Class A Sequential Pay Certificate": Any Class A-1, Class A-2,
Class A-AB, Class A-3, Class A-4FL or Class A-1-A Certificate.

            "Class A-1 Certificate": A Certificate designated as "Class A-1" on
the face thereof, substantially in the form of Exhibit A-1 hereto.

            "Class A-1 Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to 4.7710%.

            "Class A-1-A Certificate": A Certificate designated as "Class A-1-A"
on the face thereof, substantially in the form of Exhibit A-1 hereto.

            "Class A-1-A Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to 5.4600%.

            "Class A-2 Certificate": A Certificate designated as "Class A-2" on
the face thereof, substantially in the form of Exhibit A-1 hereto.

            "Class A-2 Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to 5.3610%.

            "Class A-3 Certificate": A Certificate designated as "Class A-3" on
the face thereof, substantially in the form of Exhibit A-1 hereto.

            "Class A-3 Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to 5.4670%.

            "Class A-4FL Available Funds": With respect to any Distribution
Date, an amount equal to (a) the sum of (i) the total amount of all principal
and/or interest distributions, as well as all distributions of Yield Maintenance
Charges and Static Prepayment Premiums, on or in respect of the Class A-4FL
Regular Interest with respect to such Distribution Date and (ii) the amounts, if
any, received from the Swap Counterparty pursuant to the Swap Agreement for such
Distribution Date, less (b) with respect to interest amounts, the sum of (i) all
regularly scheduled interest amounts required to be paid to the Swap
Counterparty pursuant to the Swap Agreement for such Distribution Date, (ii) any
amount payable to the Certificate Administrator as Net Investment Earnings
earned on funds held in the Floating Rate Account and (iii) any amount deposited
in the Floating Rate Account in error.

            "Class A-4FL Certificate": A Certificate designated as "Class A-4FL"
on the face thereof, substantially in the form of Exhibit A-1A hereto.

            "Class A-4FL Distribution Conversion": With respect to any
Distribution Date (i) immediately upon and during the continuation of a Swap
Default of the nature described in clause (i) of the definition of "Swap
Default" while the Certificate Administrator is pursuing remedies under the Swap
Agreement pursuant to Section 3.33, or (ii) immediately upon and following the
termination of the Swap Agreement, the conversion of distributions to the Class
A-4FL Certificates from distributions based, in part, on floating interest
payments from the Swap Counterparty under the Swap Agreement to distributions
based solely on fixed interest distributions in respect of the Class A-4FL
Regular Interest, as specified in Section 4.01.

            "Class A-4FL Fixed Swap Payment": With respect to any Distribution
Date, the fixed interest amount required to be paid to the Swap Counterparty by
the Trust under the Swap Agreement (prior to any netting against amounts due
from the Swap Counterparty to the Trust) in respect of that Distribution Date.

            "Class A-4FL Floating Swap Payment": With respect to any
Distribution Date, the floating interest amount required to be paid to the Trust
by the Swap Counterparty under the Swap Agreement (prior to any netting against
amounts due from the Trust to the Swap Counterparty) in respect of that
Distribution Date.

            "Class A-4FL Interest Distribution Amount": With respect to any
Distribution Date, an amount equal to (a) the sum of (i) the Optimal Interest
Distribution Amount with respect to the Class A-4FL Regular Interest for such
Distribution Date, (ii) the Class A-4FL Floating Swap Payment received from the
Swap Counterparty with respect to such Distribution Date and (iii) if the Swap
Agreement is terminated and a replacement Swap Agreement is not obtained, any
Swap Termination Payment collected during the related Due Period, less (b) the
Class A-4FL Fixed Swap Payment made to the Swap Counterparty with respect to
such Distribution Date.

            "Class A-4FL Net Fixed Swap Payment": With respect to any
Distribution Date, the excess, if any of (i) the Class A-4FL Fixed Swap Payment
for that Distribution Date over (ii) the Class A-4FL Floating Swap Payment in
respect of that Distribution Date.

            "Class A-4FL Net Floating Swap Payment": With respect to any
Distribution Date, the excess, if any of (i) the Class A-4FL Floating Swap
Payment for that Distribution Date over (ii) the Class A-4FL Fixed Swap Payment
in respect of that Distribution Date.

            "Class A-4FL Pass-Through Rate": With respect to any Distribution
Date, LIBOR plus 0.1800%; except that if (a) the total amount of interest
distributions with respect to the Class A-4FL Regular Interest for any
distribution date deposited in the Floating Rate Account is less than (b) 1/12th
of the product of (i) 5.4680%, multiplied by (ii) the Class Principal Balance of
the Class A-4FL Regular Interest immediately prior to that Distribution Date,
then there will be a proportionate reduction to the amount of interest
distributable on the Class A-4FL Certificates, as provided in the Swap
Agreement.

            "Class A-4FL Principal Distribution Amount": With respect to any
Distribution Date, an amount equal to the amount of principal allocated pursuant
to Section 4.01 in respect of the Class A-4FL Regular Interest on such
Distribution Date.

            "Class A-4FL Regular Interest": The uncertificated interest in REMIC
II, designated as "Class A-4FL," constituting a "regular interest" in REMIC II
for purposes of the REMIC Provisions and having the characteristics attributable
thereto in this Agreement.

            "Class A-4FL Regular Interest Pass-Through Rate": As to any
Distribution Date, a per annum rate equal to 5.4680%.

            "Class A-4FL Swap Payment Date": With respect to any Distribution
Date, the Business Day preceding such Distribution Date.

            "Class A-AB Certificate": A Certificate designated as "Class A-AB"
on the face thereof, substantially in the form of Exhibit A-1 hereto.

            "Class A-AB Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to 5.4390%.

            "Class A-M Certificate": A Certificate designated as "Class A-M" on
the face thereof, substantially in the form of Exhibit A-1 hereto.

            "Class A-M Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to 5.5090%.

            "Class A-J" Certificate": A Certificate designated as "Class A-J" on
the face thereof, substantially in the form of Exhibit A-2 hereto.

            "Class A-J Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.5380% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class A-SP Certificate": A Certificate designated as "Class A-SP"
on the face thereof, substantially in the form of Exhibit A-2 hereto.

            "Class A-SP Component": Any of Component A-1-2, Component A-2-1,
Component A-2-2, Component A-3-1, Component A-3-2, Component A-3-3, Component
A-3-4, Component A-3-5, Component A-4FL, Component A-AB-1, Component A-AB-2,
Component A-1-A-2, Component A-1-A-3, Component A-1-A-4, Component A-1-A-5,
Component A-1-A-6, Component A-1-A-7, Component A-1-A-8, Component A-M,
Component A-J, Component B, Component C-1, Component C-2, Component D-1,
Component D-2, Component E, Component F-1, Component F-2, Component G, Component
H-1 and Component H-2.

            "Class A-SP Notional Amount": With respect to the Class A-SP
Certificates, as of any date of determination, the sum of then Component
Notional Amounts of all of the Class A-SP Components.

            "Class A-SP Pass-Through Rate": As to any Distribution Date, the per
annum rate, expressed as a percentage, equal to the weighted average of the
respective Class A-SP Strip Rates of the Class A-SP Components for (and weighted
on the basis of their respective Component Notional Balances immediately prior
to) such Distribution Date.

            "Class A-SP Strip Rate": With respect to each of the Class A-SP
Components for any Distribution Date, a rate per annum equal to (i) for any
Distribution Date occurring on or before the related Component Crossover Date,
(x) the lesser of (I) the Weighted Average Net Mortgage Rate for such
Distribution Date and (II) the Reference Rate for such Distribution Date minus
(y) the Pass-Through Rate for the Corresponding Certificates (provided that in
no event shall any Class A-SP Strip Rate be less than zero), and (ii) for any
Distribution Date occurring after the related Component Crossover Date, 0% per
annum.

            "Class A-X Certificate": A Certificate designated as "Class A-X" on
the face thereof, substantially in the form of Exhibit A-2 hereto.

            "Class A-X Component": Each of the Components.

            "Class A-X Notional Amount": With respect to the Class A-X
Certificates, as of any date of determination, the sum of then Component
Notional Amounts of all of the Class A-X Components.

            "Class A-X Pass-Through Rate": As to any Distribution Date, the per
annum rate, expressed as a percentage, equal to the weighted average of the
respective Class A-X Strip Rates of the Class A-X Components for (and weighted
on the basis of their respective Component Notional Balances immediately prior
to) such Distribution Date.

            "Class A-X Strip Rate": With respect to any Class A-X Component
(other than the Class A-SP Components) for any Distribution Date, a rate per
annum equal to (i) the Weighted Average Net Mortgage Rate for such Distribution
Date, minus (ii) the Pass-Through Rate for the Corresponding Certificates, and
in the case of Class A-SP Components, (A) for any Distribution Date occurring on
or before the related Component Crossover Date, (x) the Weighted Average Net
Mortgage Rate for such Distribution Date minus (y) the sum of the Pass-Through
Rate for the Corresponding Certificates for such Distribution Date and the Class
A-SP Strip Rate for such Component for such Distribution Date, and (B) for any
Distribution Date occurring after the related Component Crossover Date, a rate
per annum equal to (x) the Weighted Average Net Mortgage Rate for such
Distribution Date, minus (y) the Pass-Through Rate for the Corresponding
Certificates (provided, that in no event shall any Class A-X Strip Rate be less
than zero).

            "Class A-Y Certificate": A Certificate designated as "Class A-Y" on
the face thereof, substantially in the form of Exhibit A-2 hereto.

            "Class A-Y Notional Amount": With respect to the Class A-Y
Certificates, as of any date of determination, the then aggregate Stated
Principal Balance of the Specially Designated Co-op Loans and any successor REO
Loans with respect thereto.

            "Class A-Y Pass-Through Rate": As to any Distribution Date, the per
annum rate, expressed as a percentage, equal to the weighted average of the
respective Class A-Y Strip Rates of the Specially Designated Co-op Loans and any
successor REO Loans with respect thereto for (and weighted on the basis of their
respective Stated Principal Balances immediately prior to) such Distribution
Date.

            "Class A-Y Strip Rate": With respect to any Specially Designated
Co-op Loan (and any successor REO Loan with respect thereto), for any
Distribution Date, a rate per annum equal to either: (1) if such Loan accrues
interest on a 30/360 Basis, 0.10%; and (2) if such Loan accrues interest on an
Actual/360 Basis, the product of (a) 0.10%, multiplied by (b) a fraction, the
numerator of which is the number of days in the Interest Accrual Period that
corresponds to such Distribution Date, and the denominator of which 30.

            "Class B Certificate": A Certificate designated as "Class B" on the
face thereof, substantially in the form of Exhibit A-1 hereto.

            "Class B Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.5680% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class C Certificate": A Certificate designated as "Class C" on the
face thereof, substantially in the form of Exhibit A-1 hereto.

            "Class C Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.5220% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class D Certificate": A Certificate designated as "Class D" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class D Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.6170% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class E Certificate": A Certificate designated as "Class E" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class E Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.6470% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class F Certificate": A Certificate designated as "Class F" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class F Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.6670% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class G Certificate": A Certificate designated as "Class G" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class G Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.7260% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class H Certificate": A Certificate designated as "Class H" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class H Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.9130% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class J Certificate": A Certificate designated as "Class J" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class J Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 6.0120% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class K Certificate": A Certificate designated as "Class K" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class K Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the Weighted Average Net Mortgage Pass-Through Rate for such
Distribution Date.

            "Class L Certificate": A Certificate designated as "Class L" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class L Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.1480% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class LA-1-1 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-1-2 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-1-A-1 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-1-A-2 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-1-A-3 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-1-A-4 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-1-A-5 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-1-A-6 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-1-A-7 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-1-A-8 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-2-1 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-2-2 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-3-1 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-3-2 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-3-3 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-3-4 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-3-5 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-4FL Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-AB-1 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-AB-2 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-M Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-J Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LA-Y Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Notional Balance and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LB Lower-Tier Interest": A regular interest in the Lower-Tier
REMIC that is held as an asset of the Upper-Tier REMIC, has the Original
Lower-Tier Principal Amount and per annum rate of interest set forth in the
Preliminary Statement hereto.

            "Class LC-1 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LC-2 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LD-1 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LD-2 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LE Lower-Tier Interest": A regular interest in the Lower-Tier
REMIC that is held as an asset of the Upper-Tier REMIC, has the Original
Lower-Tier Principal Amount and per annum rate of interest set forth in the
Preliminary Statement hereto.

            "Class LF-1 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LF-2 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LG Lower-Tier Interest": A regular interest in the Lower-Tier
REMIC that is held as an asset of the Upper-Tier REMIC, has the Original
Lower-Tier Principal Amount and per annum rate of interest set forth in the
Preliminary Statement hereto.

            "Class LH-1 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LH-2 Lower-Tier Interest": A regular interest in the
Lower-Tier REMIC that is held as an asset of the Upper-Tier REMIC, has the
Original Lower-Tier Principal Amount and per annum rate of interest set forth in
the Preliminary Statement hereto.

            "Class LJ Lower-Tier Interest": A regular interest in the Lower-Tier
REMIC that is held as an asset of the Upper-Tier REMIC, has the Original
Lower-Tier Principal Amount and per annum rate of interest set forth in the
Preliminary Statement hereto.

            "Class LK Lower-Tier Interest": A regular interest in the Lower-Tier
REMIC that is held as an asset of the Upper-Tier REMIC, has the Original
Lower-Tier Principal Amount and per annum rate of interest set forth in the
Preliminary Statement hereto.

            "Class LL Lower-Tier Interest": A regular interest in the Lower-Tier
REMIC that is held as an asset of the Upper-Tier REMIC, has the Original
Lower-Tier Principal Amount and per annum rate of interest set forth in the
Preliminary Statement hereto.

            "Class LM Lower-Tier Interest": A regular interest in the Lower-Tier
REMIC that is held as an asset of the Upper-Tier REMIC, has the Original
Lower-Tier Principal Amount and per annum rate of interest set forth in the
Preliminary Statement hereto.

            "Class LN Lower-Tier Interest": A regular interest in the Lower-Tier
REMIC that is held as an asset of the Upper-Tier REMIC, has the Original
Lower-Tier Principal Amount and per annum rate of interest set forth in the
Preliminary Statement hereto.

            "Class LO Lower-Tier Interest": A regular interest in the Lower-Tier
REMIC that is held as an asset of the Upper-Tier REMIC, has the Original
Lower-Tier Principal Amount and per annum rate of interest set forth in the
Preliminary Statement hereto.

            "Class LP Lower-Tier Interest": A regular interest in the Lower-Tier
REMIC that is held as an asset of the Upper-Tier REMIC, has the Original
Lower-Tier Principal Amount and per annum rate of interest set forth in the
Preliminary Statement hereto.

            "Class M Certificate": A Certificate designated as "Class M" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class M Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.1480% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class N Certificate": A Certificate designated as "Class N" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class N Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.1480% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class Notional Amount": For any date of determination, the Class
A-X Notional Amount or the Class A-Y Notional Amount, as applicable.

            "Class O Certificate": A Certificate designated as "Class O" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class O Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.1480% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class P Certificate": A Certificate designated as "Class P" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class P Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.1480% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class Q Certificate": A Certificate designated as "Class Q" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class Q Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.1480% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class S Certificate": A Certificate designated as "Class S" on the
face thereof, substantially in the form of Exhibit A-3 hereto.

            "Class S Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.1480% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class Principal Balance": With respect to any Class of Sequential
Pay Certificates, as of any date of determination, a principal amount equal to
the Original Class Principal Balance of such Class as specified in the
Preliminary Statement hereto, as such principal amount may be permanently
reduced (to not less than zero) on each Distribution Date coinciding with or
preceding such date of determination by (i) any distributions of principal made
with respect to such Class of Sequential Pay Certificates on the subject
Distribution Date pursuant to Section 4.01(a) and (ii) any Collateral Support
Deficit allocated to such Class of Sequential Pay Certificates on the subject
Distribution Date pursuant to Section 4.04.

            "Class R Certificate": A Certificate designated as "Class R" on the
face thereof, substantially in the form of Exhibit A-5 hereto.

            "Class V Certificate": A Certificate designated as "Class V" on the
face thereof, substantially in the form of Exhibit A-4 hereto. The Class V
Certificates have no Pass-Through Rate, Class Principal Balance or Class
Notional Amount.

            "Clearstream": Clearstream Banking, Luxembourg, or any successor.

            "Closing Date": September 28, 2006.

            "Closing Date Deposit Amount": $305,071, representing the aggregate
amount of interest that would have accrued at the related Net Mortgage Rates
during the Collection Period ending in October 2006 for those Mortgage Loans
that do not have their first Monthly Payment due until October 2006.

            "CMSA": The Commercial Mortgage Securities Association, or any
association or organization that is a successor thereto. If neither such
association nor any successor remains in existence, "CMSA" shall be deemed to
refer to such other association or organization as may exist whose principal
membership consists of servicers, trustees, issuers, placement agents and
underwriters generally involved in the commercial mortgage loan securitization
industry, which is the principal such association or organization in the
commercial mortgage loan securitization industry and one of whose principal
purposes is the establishment of industry standards for reporting
transaction-specific information relating to commercial mortgage pass-through
certificates and commercial mortgage-backed bonds and the commercial mortgage
loans and foreclosed properties underlying or backing them to investors holding
or owning such certificates or bonds, and any successor to such other
association or organization. If an organization or association described in one
of the preceding sentences of this definition does not exist, "CMSA" shall be
deemed to refer to such other association or organization as shall be selected
by the Master Servicers, jointly, and reasonably acceptable to the Trustee, the
Certificate Administrator, the Special Servicers and the Directing
Certificateholder.

            "CMSA Advance Recovery Report": A report substantially in the form
of, and containing the information called for in, the downloadable form of the
"Advance Recovery Report" available as of the Closing Date on the CMSA Website,
or such other form for the presentation of such information and containing such
additional information as may from time to time be recommended by the CMSA for
commercial mortgage-backed securities transactions generally.

            "CMSA Bond Level File": A data file substantially in the form of,
and containing the information called for in, the downloadable form of the "Bond
Level File" available as of the Closing Date on the CMSA Website, or such other
form for the presentation of such information and containing such additional
information as may from time to time be recommended by the CMSA for commercial
mortgage-backed securities transactions generally (unless the Directing
Certificateholder and the Rating Agencies otherwise consent to an alternative
form of such report).

            "CMSA Collateral Summary File": A data file substantially in the
form of, and containing the information called for in, the downloadable form of
the "Collateral Summary File" available as of the Closing Date on the CMSA
Website, or such other form for the presentation of such information and
containing such additional information as may from time to time be recommended
by the CMSA for commercial mortgage-backed securities transactions generally
(unless the Directing Certificateholder and the Rating Agencies otherwise
consent to an alternative form of such report).

            "CMSA Comparative Financial Status Report": A report substantially
in the form of, and containing the information called for in, the downloadable
form of the "Comparative Financial Status Report" available as of the Closing
Date on the CMSA Website, or such other form for the presentation of such
information and containing such additional information as may from time to time
be recommended by the CMSA for commercial mortgage-backed securities
transactions generally (unless the Directing Certificateholder and the Rating
Agencies otherwise consent to an alternative form of such report).

            "CMSA Delinquent Loan Status Report": A report substantially in the
form of, and containing the information called for in, the downloadable form of
the "Delinquent Loan Status Report" available as of the Closing Date on the CMSA
Website, or such other form for the presentation of such information and
containing such additional information as may from time to time be reasonably
recommended by the CMSA for commercial mortgage-backed securities transactions
generally (unless the Directing Certificateholder and the Rating Agencies
otherwise consent to an alternative form of such report).

            "CMSA Financial File": A data file substantially in the form of, and
containing the information called for in, the downloadable form of the
"Financial File" available as of the Closing Date on the CMSA Website, or such
other form for the presentation of such information and containing such
additional information as may from time to time be recommended by the CMSA for
commercial mortgage-backed securities transactions generally (unless the
Directing Certificateholder and the Rating Agencies otherwise consent to an
alternative form of such report).

            "CMSA Historical Loan Modification and Corrected Mortgage Loan
Report": A report substantially in the form of, and containing the information
called for in, the downloadable form of the "Historical Loan Modification and
Corrected Mortgage Loan Report" available as of the Closing Date on the CMSA
Website, or such other form for the presentation of such information and
containing such additional information as may from time to time be recommended
by the CMSA for commercial mortgage-backed securities transactions generally
(unless the Directing Certificateholder and the Rating Agencies otherwise
consent to an alternative form of such report).

            "CMSA Investor Reporting Package":

            (a) the following seven electronic files: (i) CMSA Loan Setup File,
      (ii) CMSA Loan Periodic Update File, (iii) CMSA Property File, (iv) CMSA
      Bond Level File, (v) CMSA Financial File, (vi) CMSA Collateral Summary
      File and (vii) CMSA Special Servicer Loan File;

            (b) the following twelve supplemental reports: (i) CMSA Delinquent
      Loan Status Report, (ii) CMSA Historical Loan Modification and Corrected
      Mortgage Loan Report, (iii) CMSA REO Status Report, (iv) CMSA Loan Level
      Reserve/LOC Report, (v) CMSA Comparative Financial Status Report, (vi)
      CMSA Servicer Watch List, (vii) CMSA Operating Statement Analysis Report,
      (viii) CMSA NOI Adjustment Worksheet, (ix) CMSA Reconciliation of Funds,
      (x) CMSA Realized Loss Report, (xi) CMSA Total Loan Report and (xii) the
      CMSA Advance Recovery Report; and

            (c) such other reports and data files as CMSA may designate as part
      of the "CMSA Investor Reporting Package" from time to time generally;

provided that, in the case of each Mortgaged Property securing a Co-op Loan, the
respective files and reports comprising the CMSA Investor Reporting Package
shall present the Projected Net Cash Flow for such Mortgaged Property and the
Debt Service Coverage Ratio for such Co-op Loan, as such terms apply to
residential cooperative properties, if and to the extent that such file or
report requires preparation and/or submission of data concerning net cash flow
or debt service coverage.

            "CMSA Loan Level Reserve/LOC Report": A report substantially in the
form of, and containing the information called for in, the downloadable form of
the "Loan Level Reserve/LOC Report" on the CMSA Website, or in such other form
for the presentation of such information and containing such additional
information as may from time to time be recommended by the CMSA for commercial
mortgage-backed securities transactions generally (unless the Directing
Certificateholder and the Rating Agencies otherwise consent to an alternative
form of such report).

            "CMSA Loan Periodic Update File": A data file substantially in the
form of, and containing the information called for in, the downloadable form of
the "Loan Periodic Update File" available as of the Closing Date on the CMSA
Website, or such other form for the presentation of such information and
containing such additional information as may from time to time be recommended
by the CMSA for commercial mortgage-backed securities transactions generally
(unless the Directing Certificateholder and the Rating Agencies otherwise
consent to an alternative form of such report).

            "CMSA Loan Setup File": A data file substantially in the form of,
and containing the information called for in, the downloadable form of the "Loan
Setup File" available as of the Closing Date on the CMSA Website, or such other
form for the presentation of such information and containing such additional
information as may from time to time be recommended by the CMSA for commercial
mortgage-backed securities transactions generally (unless the Directing
Certificateholder and the Rating Agencies otherwise consent to an alternative
form of such report).

            "CMSA NOI Adjustment Worksheet": A report substantially in the form
of, and containing the information called for in, the downloadable form of the
"NOI Adjustment Worksheet" available as of the Closing Date on the CMSA Website,
or such other form for the presentation of such information and containing such
additional information as may from time to time be recommended by the CMSA for
commercial mortgage-backed securities transactions generally (unless the
Directing Certificateholder and the Rating Agencies otherwise consent to an
alternative form of such report), and in any event, shall present the
computations made in accordance with the methodology described in such form to
"normalize" the full year net operating income or net cash flow, as applicable,
and debt service coverage numbers used in the other reports required by this
Agreement.

            "CMSA Operating Statement Analysis Report": A report substantially
in the form of, and containing the information called for in, the downloadable
form of the "Operating Statement Analysis Report" available as of the Closing
Date on the CMSA Website or in such other form for the presentation of such
information and containing such additional information as may from time to time
be recommended by the CMSA for commercial mortgage-backed securities
transactions generally (unless the Directing Certificateholder and the Rating
Agencies otherwise consent to an alternative form of such report).

            "CMSA Property File": A data file substantially in the form of, and
containing the information called for in, the downloadable form of the "Property
File" available as of the Closing Date on the CMSA Website, or such other form
for the presentation of such information and containing such additional
information as may from time to time be recommended by the CMSA for commercial
mortgage-backed securities transactions generally (unless the Directing
Certificateholder and the Rating Agencies otherwise consent to an alternative
form of such report).

            "CMSA Realized Loss Report": A template substantially in the form
of, and containing the information called for in, the downloadable form of the
"Realized Loss Report" available as of the Closing Date on the CMSA Website, or
such other form for the presentation of such information and containing such
additional information as may from time to time be recommended by the CMSA for
commercial mortgage-backed securities transactions generally.

            "CMSA Reconciliation of Funds": A report substantially in the form
of, and containing the information called for in, the downloadable form of the
"Reconciliation of Funds" available as of the Closing Date on the CMSA Website,
or in such other form for the presentation of such information and containing
such additional information as may from time to time be recommended by the CMSA
for commercial mortgage-backed securities transactions generally.

            "CMSA REO Status Report": A report substantially in the form of, and
containing the information called for in, the downloadable form of the "REO
Status Report" available as of the Closing Date on the CMSA Website, or such
other form for the presentation of such information and containing such
additional information as may from time to time be recommended by the CMSA for
commercial mortgage-backed securities transactions generally (unless the
Directing Certificateholder and the Rating Agencies otherwise consent to an
alternative form of such report).

            "CMSA Servicer Watch List": A report substantially in the form of,
and containing the information called for in, the downloadable form of the
"Servicer Watch List" available as of the Closing Date on the CMSA Website, or
such other form for the presentation of such information and containing such
additional information as may from time to time be recommended by the CMSA for
commercial mortgage-backed securities transactions generally (unless the
Directing Certificateholder and the Rating Agencies otherwise consent to an
alternative form of such report).

            "CMSA Special Servicer Loan File": A data file substantially in the
form of, and containing the information called for in, the downloadable form of
the "Special Servicer Loan File" available as of the Closing Date on the CMSA
Website, or in such other form for the presentation of such information and
containing such additional information as may from time to time be recommended
by the CMSA for commercial mortgage-backed securities transactions generally
(unless the Directing Certificateholder and the Rating Agencies otherwise
consent to an alternative form of such report).

            "CMSA Total Loan Report": A report substantially in the form of, and
containing the information called for in, the downloadable form of the "CMSA
Total Loan Report" available as of the Closing Date on the CMSA Website, or such
other form for the presentation of such information and containing such
additional information as may from time to time be approved by the CMSA for
commercial mortgage securities transactions generally.

            "CMSA Website": The CMSA's Website located at "www.cmbs.org" or such
other primary website as the CMSA may establish for dissemination of its report
forms.

            "Code": The Internal Revenue Code of 1986 and regulations
promulgated thereunder, including proposed regulations to the extent that, by
reason of their proposed effective date, could, as of the date of any
determination or opinion as to the tax consequences of any action or proposed
action or transaction, be applied to the Trust or the Certificates.

            "Collateral Support Deficit": As defined in Section 4.04.

            "Collection Account": One or more separate custodial accounts or,
subject to Section 3.04(j), sub-accounts created and maintained by each Master
Servicer or any Sub-Servicer on behalf of such Master Servicer pursuant to
Section 3.04(a) in the name of the Trustee on behalf of the Certificateholders
and any related Junior Loan Holder(s) (other than a CBA B Loan Holder) or any
Companion Loan Holder and, with respect to any CBA A/B Loan Pair after the
occurrence of a CBA A/B Material Default, on behalf of the related CBA B Loan
Holder, as applicable, as their interests may appear, into which the amounts set
forth in Section 3.04(a) shall be deposited directly, which account shall,
subject to Section 3.04(j), be entitled substantially as follows: "[name of
subject Master Servicer], in trust for [name of Trustee], as Trustee for the
benefit of Holders of Credit Suisse First Boston Mortgage Securities Corp.,
Commercial Mortgage Pass-Through Certificates, Series 2006-C4, and each related
Junior Loan Holder or Companion Loan Holder, as applicable, as their interests
appear, Collection Account." Any such account or accounts or, subject to Section
3.04(j), sub-accounts shall be an Eligible Account and shall be part of the
Lower-Tier REMIC (except with respect to collections on the 828-850 Madison
Avenue Loan, which shall be part of the 828-850 Madison Avenue Loan REMIC).

            "Column Performance Guarantee": The Guarantee dated as of September
28, 2006, from the Column Performance Guarantor in favor of the Trustee,
relating to the obligations of the CSMC Mortgage Loan Seller under Section 7 of
the CSMC Mortgage Loan Purchase Agreement.

            "Column Performance Guarantor": Credit Suisse USA Inc., its
successor in interest or any successor guarantor under the Column Performance
Guarantee.

            "Commission": The Securities and Exchange Commission.

            "Companion Loan" or "280 Park Avenue Companion Loan": With respect
to the 280 Park Avenue Total Loan, the pari passu portion of such loan evidenced
by Note A-2 in the amount of $140,000,000, which is not included in the Trust.
The 280 Park Avenue Companion Loan is not a "Loan."

            "Companion Loan Custodial Account": Each of the custodial
sub-account(s) of the Collection Account (which are not included in the Trust)
created and maintained by the applicable Master Servicer pursuant to Section
3.04 on behalf of the holder of a Companion Loan. Each such sub-account shall be
maintained as a sub-account of an Eligible Account.

            "Companion Loan Holder": Any holder of the Companion Loan.

            "Companion Loan Securities": Any class of securities backed, wholly
or partially, by the 280 Park Avenue Companion Loan.

            "Component": Any of the components of the Class A-X Certificates or
the Class A-SP Certificates, which components are the respective Components
listed below.

            "Component A-1-1": One of the 42 components of the Class A-X
Certificates having a Component Notional Amount equal to the then current
Lower-Tier Principal Amount of the Class LA-1-1 Lower-Tier Interest as of any
date of determination.

            "Component A-1-2": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-1-2 Lower-Tier Interest as of any date of determination.

            "Component A-2-1": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-2-1 Lower-Tier Interest as of any date of determination.

            "Component A-2-2": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-2-2 Lower-Tier Interest as of any date of determination.

            "Component A-3-1": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-3-1 Lower-Tier Interest as of any date of determination.

            "Component A-3-2": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-3-2 Lower-Tier Interest as of any date of determination.

            "Component A-3-3": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-3-3 Lower-Tier Interest as of any date of determination.

            "Component A-3-4": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-3-4 Lower-Tier Interest as of any date of determination.

            "Component A-3-5": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-3-5 Lower-Tier Interest as of any date of determination.

            "Component A-4FL": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-4FL Lower-Tier Interest as of any date of determination.

            "Component A-AB-1": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-AB-1 Lower-Tier Interest as of any date of determination.

            "Component A-AB-2": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-AB-2 Lower-Tier Interest as of any date of determination.

            "Component A-1-A-1": One of the 42 components of the Class A-X
Certificates having a Component Notional Amount equal to the then current
Lower-Tier Principal Amount of the Class LA-1-A-1 Lower-Tier Interest as of any
date of determination.

            "Component A-1-A-2": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-1-A-2 Lower-Tier Interest as of any date of
determination.

            "Component A-1-A-3": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-1-A-3 Lower-Tier Interest as of any date of
determination.

            "Component A-1-A-4": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-1-A-4 Lower-Tier Interest as of any date of
determination.

            "Component A-1-A-5": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-1-A-5 Lower-Tier Interest as of any date of
determination.

            "Component A-1-A-6": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-1-A-6 Lower-Tier Interest as of any date of
determination.

            "Component A-1-A-7": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-1-A-7 Lower-Tier Interest as of any date of
determination.

            "Component A-1-A-8": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-1-A-8 Lower-Tier Interest as of any date of
determination.

            "Component A-J": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-J Lower-Tier Interest as of any date of determination.

            "Component A-M": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LA-M Lower-Tier Interest as of any date of determination.

            "Component B": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LB Lower-Tier Interest as of any date of determination.

            "Component C-1": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LC-1 Lower-Tier Interest as of any date of determination.

            "Component C-2": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LC-2 Lower-Tier Interest as of any date of determination.

            "Component Crossover Date": With respect to each Class A-SP
Component, the related Crossover Date as set forth in the table below:

Class A-SP Component                          Component Crossover Date
-------------------------------------------   ----------------------------------
Components A-1-2, A-2-1 and A-1-A-2           September 2007 Distribution Date
Components A-2-2, A-AB-1 and A-1-A-3          September 2008 Distribution Date
Components A-3-1, A-AB-2, A-1-A-4 and H-1     September 2009 Distribution Date
Components A-3-2, A-1-A-5, F-1, G and H-2     September 2010 Distribution Date
Components A-3-3, A-1-A-6, D-1, E and F-2     September 2011 Distribution Date
Components A-3-4, A-1-A-7, C-1 and D-2        September 2012 Distribution Date
Components A-3-5, A-4FL, A-M, A-1-A-8,
A-J, B and C-2                                September 2013 Distribution Date

            "Component D-1": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LD-1 Lower-Tier Interest as of any date of determination.

            "Component D-2": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LD-2 Lower-Tier Interest as of any date of determination.

            "Component E": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LE Lower-Tier Interest as of any date of determination.

            "Component F-1": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LF-1 Lower-Tier Interest as of any date of determination.

            "Component F-2": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LF-2 Lower-Tier Interest as of any date of determination.

            "Component G": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LG Lower-Tier Interest as of any date of determination.

            "Component H-1": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LH-1 Lower-Tier Interest as of any date of determination.

            "Component H-2": One of the 42 components of the Class A-X
Certificates and one of the 31 components of the Class A-SP Certificates having
a Component Notional Amount equal to the then current Lower-Tier Principal
Amount of the Class LH-2 Lower-Tier Interest as of any date of determination.

            "Component J": One of the 42 components of the Class A-X
Certificates having a Component Notional Amount equal to the then current
Lower-Tier Principal Amount of the Class LJ Lower-Tier Interest as of any date
of determination.

            "Component K": One of the 42 components of the Class A-X
Certificates having a Component Notional Amount equal to the then current
Lower-Tier Principal Amount of the Class LK Lower-Tier Interest as of any date
of determination.

            "Component L": One of the 42 components of the Class A-X
Certificates having a Component Notional Amount equal to the then current
Lower-Tier Principal Amount of the Class LL Lower-Tier Interest as of any date
of determination.

            "Component M": One of the 42 components of the Class A-X
Certificates having a Component Notional Amount equal to the then current
Lower-Tier Principal Amount of the Class LM Lower-Tier Interest as of any date
of determination.

            "Component N": One of the 42 components of the Class A-X
Certificates having a Component Notional Amount equal to the then current
Lower-Tier Principal Amount of the Class LN Lower-Tier Interest as of any date
of determination.

            "Component O": One of the 42 components of the Class A-X
Certificates having a Component Notional Amount equal to the then current
Lower-Tier Principal Amount of the Class LO Lower-Tier Interest as of any date
of determination.

            "Component P": One of the 42 components of the Class A-X
Certificates having a Component Notional Amount equal to the then current
Lower-Tier Principal Amount of the Class LP Lower-Tier Interest as of any date
of determination.

            "Component Q": One of the 42 components of the Class A-X
Certificates having a Component Notional Amount equal to the then current
Lower-Tier Principal Amount of the Class LQ Lower-Tier Interest as of any date
of determination.

            "Component S": One of the 42 components of the Class A-X
Certificates having a Component Notional Amount equal to the then current
Lower-Tier Principal Amount of the Class LS Lower-Tier Interest as of any date
of determination.

            "Component Notional Amount": With respect to each Component and any
date of determination, an amount equal to the then Lower-Tier Principal Amount
of its Corresponding Uncertificated Lower-Tier Interest.

            "Controlling Class": As of any date of determination, the most
subordinate Class of Sequential Pay Certificates then outstanding that has a
Class Principal Balance at least equal to 25% of the initial Class Principal
Balance of such Class; or, if no such Class exists, the most subordinate Class
of Sequential Pay Certificates then outstanding that has a Class Principal
Balance greater than zero. As of the Closing Date, the Controlling Class shall
be the Class S Certificates. For purposes of this definition, the respective
Classes of the Class A Sequential Pay Certificates shall be treated as a single
Class and, if appropriate under the terms of this definition, shall collectively
constitute the Controlling Class.

            "Controlling Class Certificateholder": Each Holder (or Certificate
Owner, if applicable) of a Certificate of the Controlling Class as certified by
the Certificate Registrar to the Trustee from time to time.

            "Co-op Loan": Any Loan that, as of the date it is first included in
the Trust Fund, is secured by a Mortgage that encumbers a residential
cooperative property, as identified on the Mortgage Loan Schedule.

            "Corporate Trust Office": The corporate trust office of (i) the
Trustee is located at 9062 Old Annapolis Road, Columbia, Maryland 21045-1951 or
(ii) the Certificate Administrator is located at 135 South LaSalle Street, Suite
1625, Chicago, Illinois 60603, Attention: Global Securities and Trust Services,
CSFB 2006-C4.

            "Corrected Loan": Any Specially Serviced Loan that has become
current and remained current for three consecutive Monthly Payments (for such
purposes taking into account any modification or amendment of the subject Loan,
Companion Loan or any Junior Loan, as the case may be) and as to which Loan or
Junior Loan, as the case may be, the Special Servicer has returned servicing to
the Master Servicer pursuant to Section 3.21(a).

            "Corresponding Certificates": As defined in the Preliminary
Statement hereto.

            "Corresponding Components": As defined in the Preliminary Statement
hereto.

            "Corresponding Uncertificated REMIC I Interests": As defined in the
Preliminary Statement hereto.

            "Crossed Group": Any group of Loans that is cross-defaulted and
cross-collateralized with each other.

            "Crossed Loan": Any Loan which is cross-defaulted and
cross-collateralized with any other Loan.

            "Crossed Loan Repurchase Criteria": (i) The Debt Service Coverage
Ratio for all related Crossed Loans remaining in the Trust Fund for the four
calendar quarters immediately preceding the repurchase or substitution is not
less than the greater of (a) the Debt Service Coverage Ratio for all such
related Crossed Loans, together with the affected Crossed Loan, for the four
calendar quarters immediately preceding the repurchase or substitution and (b)
1.25x, (ii) the Loan-to-Value Ratio for any related Crossed Loans remaining in
the Trust Fund determined at the time of repurchase or substitution based upon
an Appraisal obtained by the Special Servicer at the expense of the related
Responsible Party is not greater than the least of (a) the Loan-to-Value Ratio
for all such related Crossed Loans, together with the affected Crossed Loan, as
set forth in the tables on Exhibit A-1 to the Prospectus Supplement, (b) the
Loan-to-Value Ratio for all such related Crossed Loans, together with the
affected Crossed Loan, determined at the time of repurchase or substitution
based upon an Appraisal obtained by the applicable Special Servicer at the
expense of the related Responsible Party and (c) 75%, and (iii) the Trustee and
the Certificate Administrator receive an Opinion of Counsel (at the expense of
the related Responsible Party) to the effect that such repurchase or
substitution will not result in the imposition of a tax on the Trust Fund or its
assets, income or gain, cause the remaining Crossed Loans to have been
significantly modified under the REMIC Provisions or cause any Trust REMIC to
fail to qualify as a REMIC for federal or applicable state tax purposes at any
time that any of the Certificates are outstanding.

            "CSMC Loans": The mortgage loans transferred to the Depositor
pursuant to the CSMC Mortgage Loan Purchase Agreement and identified on Schedule
II thereto, together with any mortgage loans substituted in replacement thereof
pursuant to the CSMC Mortgage Loan Purchase Agreement.

            "CSMC Mortgage Loan Purchase Agreement": The agreement between the
Depositor as purchaser and the CSMC Mortgage Loan Seller as seller, dated as of
September 1, 2006, relating to the transfer of all of the CSMC Mortgage Loan
Seller's right, title and interest in and to the mortgage loans identified on
Schedule II thereto.

            "CSMC Mortgage Loan Seller" or "Column": Column Financial, Inc., a
Delaware corporation, and its successors in interest.

            "Cure Event": The exercise by the 828-850 Madison Avenue Junior Loan
Holder, 3434 North Washington Boulevard Junior Loan Holder or CBA B Loan Holder
of the cure rights set forth in the related Intercreditor Agreement, whether for
one month, or for consecutive months in the aggregate.

            "Cure Payments": With respect to any Loan Combination, as to which
the related Intercreditor Agreement provides that a Junior Loan Holder shall be
entitled to cure a default under the related Loan, the payment that such Junior
Loan Holder makes to the applicable Master Servicer or Special Servicer, as
applicable, which payments shall consist (without duplication) of all actual
costs, expenses, losses, obligations, damages, penalties, and disbursements
imposed on or incurred (whether or not yet paid) by the applicable Master
Servicer or Special Servicer (including, without limitation, all unreimbursed
Advances (without regard to whether such Advance would be a Nonrecoverable
Advance) and any interest accrued thereon, Default Interest and any servicing
compensation incurred with respect to the related Loan) during the period of
time from the expiration of the grace period under such Loan until such Cure
Payment is made or such other cure is otherwise effected.

            "Cut-off Date": Individually and collectively, the respective Due
Dates for the Loans in September 2006, (except that in the case of certain of
the underlying mortgage loans that have their first due date in October 2006, as
of the equivalent day of the month in September 2006 had their first due date
been in September 2006).

            "Cut-off Date Principal Balance": With respect to any Loan,
Companion Loan or Junior Loan, the outstanding principal balance of such Loan,
Companion Loan or Junior Loan as of the Cut-off Date, after application of all
payments of principal due on or before such date, whether or not received.

            "Debt Service Coverage Ratio": With respect to any Loan (other than
Co-op Loans) for any twelve-month period covered by an annual operating
statement for the related Mortgaged Property, the ratio of (i) Net Operating
Income produced by the related Mortgaged Property during such period to (ii) the
aggregate amount of Monthly Payments (other than any Balloon Payment) due under
such Loan during such period; and with respect to Co-op Loans, as of any date of
determination, the ratio of (1) the Projected Net Cash Flow for the related
Mortgaged Property on an annualized basis to (2) the annualized amount of debt
service payable on that Co-op Loan.

            "Default Interest": With respect to any Loan, Junior Loan or REO
Loan, any amounts collected thereon, other than late payment charges or
prepayment consideration, that represent interest in excess of interest accrued
on the principal balance of such Loan, Junior Loan or REO Loan at the related
Mortgage Rate, such excess interest arising out of a default thereunder.

            "Defaulted Loan": A Loan, Junior Loan or Companion Loan that is (i)
at least 60 days delinquent in respect of its Monthly Payments, or (ii)
delinquent in respect of its Balloon Payment, if any, in each case, without
giving effect to any grace period permitted by the related Mortgage or Note or
if any non-monetary event of default occurs that results in the Loan, Junior
Loan or Companion Loan becoming a Specially Serviced Loan; provided, however,
that no Monthly Payment (other than a Balloon Payment) shall be deemed
delinquent if less than ten dollars of all amounts due and payable on such Loan,
Companion Loan or related Junior Loan has not been received.

            "Defaulting Party": As defined in Section 7.01(b).

            "Defeasance Collateral": As defined in Section 3.08.

            "Defeasance Loan": As defined in Section 3.08.

            "Defect": As defined in Section 2.02(e).

            "Deficient Valuation": With respect to any Loan (other than any Loan
that constitutes part of a Serviced Loan Combination), the 280 Park Avenue Total
Loan, the 828-850 Madison Avenue Total Loan, the 3434 North Washington Boulevard
Total Loan, the 500 Sansome Office Total Loan or any CBA A/B Loan Pair, a
valuation by a court of competent jurisdiction of the related Mortgaged Property
in an amount less than the then outstanding principal balance of such Loan, 280
Park Avenue Total Loan, 828-850 Madison Avenue Total Loan, 3434 North Washington
Boulevard Total Loan, 500 Sansome Office Total Loan or such CBA A/B Loan Pair,
as the case may be, which valuation results from a proceeding initiated under
the Bankruptcy Code.

            "Definitive Certificate": A Certificate issued in registered,
definitive physical form.

            "Depositor": Credit Suisse First Boston Mortgage Securities Corp., a
Delaware corporation, or its successor in interest.

            "Depository": The Depository Trust Company, or any successor
Depository hereafter named. The nominee of the initial Depository for purposes
of registering those Certificates that are to be Book-Entry Certificates, is
Cede & Co. The Depository shall at all times be a "clearing corporation" as
defined in Section 8-102(3) of the Uniform Commercial Code of the State of New
York and a "clearing agency" registered pursuant to the provisions of Section
17A of the Exchange Act.

            "Depository Participant": A broker, dealer, bank or other financial
institution or other Person for whom from time to time the Depository effects
book-entry transfers and pledges of securities deposited with the Depository.

            "Determination Date": With respect to any Distribution Date, the
close of business on the 11th day of the month in which such Distribution Date
occurs, or if such 11th day is not a Business Day, the Business Day immediately
following such 11th day.

            "Directing Certificateholder": The Controlling Class
Certificateholder, or its designee, selected by the holders or beneficial owners
of more than 50% of the Percentage Interests in the Controlling Class, by
Certificate Principal Balance, as certified by the Trustee from time to time,
and as shall be evidenced by notice delivered by the Directing Certificateholder
to the parties hereto and the prior Directing Certificateholder, if any;
provided, however, that until a Directing Certificateholder is so selected or
after receipt of a notice from the Holders of more than 50% of the Percentage
Interests in the Controlling Class that a Directing Certificateholder is no
longer designated, the Controlling Class Certificateholder that beneficially
owns the largest aggregate Certificate Principal Balance of the Controlling
Class shall be the Directing Certificateholder. The initial Directing
Certificateholder will be Hyperion Brookfield Asset Management Inc. No
appointment of any other Person as a Directing Certificateholder shall be
effective until such Person provides the Trustee, the Master Servicers and the
Special Servicers with written confirmation of its acceptance of such
appointment, an address and telecopy number for the delivery of notices and
other correspondence and a list of officers or employees of such Person with
whom the parties to this Agreement may deal (including their names, titles, work
addresses and telecopy numbers). If no Person is appointed a Directing
Certificateholder, the Master Servicers, the Special Servicers and the Trustee
shall not be required to recognize the Controlling Class Certificateholder that
beneficially owns the largest aggregate Certificate Principal Balance of the
Controlling Class as the Directing Certificateholder until such Controlling
Class Certificateholder provides an address and telecopy number for the delivery
of notices and other correspondence and a list of officers or employees of such
Person with whom the parties to this Agreement may deal (including their names,
titles, work addresses and telecopy numbers). With respect to the 280 Park
Avenue Total Loan and any approval and consent rights in this Agreement with
respect to the 280 Park Avenue Total Loan, the holder of the 280 Park Avenue
Loan shall exercise such rights in accordance with the 280 Park Avenue
Intercreditor Agreement, provided that the Directing Certificateholder may
exercise the portion of such rights allocated to the 280 Park Avenue Loan.

            "Directly Operate": With respect to any REO Property, the furnishing
or rendering of services to the tenants thereof that are not (within the meaning
of Treasury Regulations Section 1.512(b)-1(c)(5)) customarily provided to
tenants in connection with the rental of space for occupancy, the management or
operation of such REO Property, the holding of such REO Property primarily for
sale to customers in the ordinary course of a trade or business, the performance
of any construction work thereon or any use of such REO Property in a trade or
business conducted by the Trust Fund, in each case other than through an
Independent Contractor; provided, however, that the Trustee (or the applicable
Master Servicer or Special Servicer on behalf of the Trustee) shall not be
considered to Directly Operate an REO Property solely because the Trustee (or
the applicable Master Servicer or Special Servicer on behalf of the Trustee)
establishes rental terms, chooses tenants, enters into or renews leases, deals
with taxes and insurance or makes decisions as to repairs (of the type that
would be deductible under Section 162 of the Code) or capital expenditures with
respect to such REO Property.

            "Disclosure Documents": Collectively, the Time of Sale Information
and the Prospectus.

            "Disqualified Organization": Any of (i) the United States, any State
or political subdivision thereof, any possession of the United States or any
agency or instrumentality of any of the foregoing (other than an instrumentality
that is a corporation if all of its activities are subject to tax and, except
for FHLMC, a majority of its board of directors is not selected by such
governmental unit), (ii) a foreign government, any international organization or
any agency or instrumentality of any of the foregoing, (iii) any organization
(other than certain farmers' cooperatives described in Section 521 of the Code)
that is exempt from the tax imposed by Chapter 1 of the Code (including the tax
imposed by Section 511 of the Code on unrelated business taxable income), (iv)
rural electric and telephone cooperatives described in Section 1381(a)(2)(C) of
the Code and (v) any other Person so designated by the Master Servicer or the
Certificate Administrator based upon an Opinion of Counsel provided to the
Certificate Administrator (which shall not be an expense of the Certificate
Administrator) that the holding of an Ownership Interest in a Class R
Certificate by such Person may cause the 828-850 Madison Avenue Loan REMIC, the
Lower-Tier REMIC or the Upper-Tier REMIC to fail to qualify as a REMIC or any
Person having an Ownership Interest in any Class of Certificates (other than
such Person) to incur a liability for any federal tax imposed under the Code
that would not otherwise be imposed but for the Transfer of an Ownership
Interest in a Class R Certificate to such Person. The terms "United States,"
"State" and "international organization" shall have the meanings set forth in
Section 7701 of the Code or successor provisions.

            "Distribution Account": The account, accounts or, subject to Section
3.04(i), sub-accounts (including sub-accounts for the Lower-Tier REMIC and the
Upper-Tier REMIC) created and maintained by the Certificate Administrator,
pursuant to Section 3.04(b), in trust for the Certificateholders, which, subject
to Section 3.04(i), shall be entitled "LaSalle Bank National Association, as
Certificate Administrator, for the benefit of Holders of Credit Suisse First
Boston Mortgage Securities Corp., Commercial Mortgage Pass-Through Certificates,
Series 2006-C4, Distribution Account." Any such account or sub-account shall be
an Eligible Account or, subject to Section 3.04(i), a sub-account of an Eligible
Account.

            "Distribution Date": With respect to any month, the fourth Business
Day after the Determination Date of such month, commencing in October 2006.

            "Do Not Hire List": The list, as may be updated at any time,
provided by the Depositor to the Master Servicers, Special Servicers,
Certificate Administrator and Trustee, which lists certain parties identified by
the Depositor as having materially failed to comply with their respective
obligations under Article XI of this Agreement or as having materially failed to
comply with any similar Regulation AB reporting requirements under any pooling
and servicing agreement relating to any other series of certificates offered by
the Depositor.

            "Due Date": With respect to (i) any Loan, Companion Loan or Junior
Loan, on or prior to its Maturity Date, the day of the month set forth in the
related Note on which each Monthly Payment thereon is scheduled to be first due
(without giving effect to any grace period with respect to late Monthly
Payments), (ii) any Loan, Companion Loan or Junior Loan, after the Maturity Date
therefor, the day of the month set forth in the related Note on which each
Monthly Payment on such Loan, Companion Loan or Junior Loan had been scheduled
to be first due (without giving effect to any grace period) and (iii) any REO
Loan, the day of the month set forth in the related Note on which each Monthly
Payment on the related Loan, Companion Loan or Junior Loan, as applicable, had
been scheduled to be first due (without giving effect to any grace period).

            "Due Period": With respect to each Distribution Date, the period
commencing immediately following the Determination Date in the calendar month
preceding the month in which such Distribution Date occurs and ending on and
including the Determination Date in the calendar month in which such
Distribution Date occurs.

            "EDGAR" The Electronic Data Gathering, Analysis, and Retrieval
System of the Commission, which is the computer system for the receipt,
acceptance, review and dissemination of documents submitted to the Commission in
electronic format.

            "Eligible Account": Either (i) an account or accounts maintained
with a federal or state chartered depository institution or trust company
(including the Trustee or the Certificate Administrator) the long-term unsecured
debt obligations of which are rated at least "AA" by S&P and Fitch (or, in
either case, "A" if the short-term debt obligations thereof have a short-term
rating of not less than "A-1" by S&P or "F1" by Fitch, as applicable), if the
deposits are to be held in such account for more than 30 days, or the short-term
debt obligations of which have a short-term rating of not less than "A-1" by S&P
and "F1" by Fitch, if the deposits are to be held in such account for 30 days or
less, or such other account or accounts with respect to which each of the Rating
Agencies shall have confirmed in writing that the then-current rating assigned
to any of the Certificates that are currently being rated by such Rating Agency
will not be qualified (as applicable), downgraded or withdrawn by reason thereof
or (ii) a segregated trust account or accounts maintained with the corporate
trust department of a federal- or state-chartered depository institution or
trust company that, in either case, has a combined capital and surplus of at
least $50,000,000 and has corporate trust powers, acting in its fiduciary
capacity, provided that any state-chartered depository institution or trust
company is subject to regulation regarding fiduciary funds substantially similar
to 12 C.F.R. ss. 9.10(b), (iii) in the case of Reserve Accounts and Servicing
Accounts with respect to NCB Loans, any account maintained with NCB, FSB
(provided that NCB, FSB has a combined capital and surplus of at least
$40,000,000), (iv) an account or accounts maintained with KeyBank so long as
KeyBank shall have a long-term unsecured debt rating of at least "A" from each
of S&P and Fitch and a short-term rating of at least "A-1" from S&P and "F1"
from Fitch, or (v) such other account or accounts with respect to which each of
the Rating Agencies shall have confirmed in writing that the then-current rating
assigned to any of the Certificates or any Companion Loan Securities that are
currently being rated by such Rating Agency will not be qualified (as
applicable), downgraded or withdrawn by reason thereof. Eligible Accounts may
bear interest. No Eligible Account shall be evidenced by a certificate of
deposit, passbook or other similar instrument.

            "Environmental Assessment": A "Phase I environmental assessment" as
described in and meeting the criteria of the American Society of Testing
Materials Standard E 1527-94 or any successor thereto published by the American
Society of Testing Materials.

            "Environmental Insurance Policy": With respect to any Loan, any
insurance policy covering Insured Environmental Events that is maintained from
time to time in respect of such Loan or the related Mortgaged Property.

            "Environmental Insurer": The provider of insurance pursuant to any
Environmental Insurance Policy.

            "ERISA": The Employee Retirement Income Security Act of 1974, as
amended.

            "Escrow Payment": Any payment received by a Master Servicer for the
account of any Borrower for application toward the payment of real estate taxes,
assessments, Insurance Policy premiums and similar items in respect of the
related Mortgaged Property, including amounts for deposit to any reserve
account.

            "Euroclear": The Euroclear System.

            "Event of Default": One or more of the events described in Section
7.01(a).

            "Excess Interest": With respect to each of the ARD Loans or any
successor REO Loan with respect thereto, interest accrued on such ARD Loan or
REO Loan, as the case may be, and allocable to the Excess Rate. The Excess
Interest is an asset of the Trust Fund, but shall not be an asset of any Trust
REMIC.

            "Excess Liquidation Proceeds": The excess, if any, of (a) the
Liquidation Proceeds from the sale or liquidation of a Specially Serviced Loan
or REO Property, net of (i) interest on any related Advances and (ii) any
related Servicing Advances, over (b) the amount needed to pay off in full such
Loan (or if such amount relates to a Loan Combination, the amount needed to pay
off such Loan Combination) or the related REO Loan(s) and all amounts due with
respect thereto.

            "Excess Liquidation Proceeds Account": The trust account, accounts
or, subject to Section 3.04(i), sub-account created and maintained by the
Certificate Administrator, pursuant to Section 3.04(d), in trust for the
Certificateholders, which, subject to Section 3.04(i), shall be entitled
"LaSalle Bank National Association, as Certificate Administrator in trust for
the registered holders of Credit Suisse First Boston Mortgage Securities Corp.,
Commercial Mortgage Pass-Through Certificates, Series 2006-C4." The Excess
Liquidation Proceeds Account shall be an asset of the Lower-Tier REMIC (other
than with respect to the 828-850 Madison Avenue Loan REMIC), and with respect to
the 828-850 Madison Avenue Loan REMIC shall be an "outside reserve fund"
beneficially owned by the Holders of the Class R Certificates, who shall be
treated as the beneficial owners thereof for federal income tax purposes and
taxable on all reinvestment income thereon, and (notwithstanding that such funds
are to be held for the benefit of the Holders of the Regular Certificates until
the termination of the Trust Fund pursuant to Section 9.01 hereof) to whom any
distribution of Excess Liquidation Proceeds from the 828-850 Madison Avenue Loan
REMIC shall be deemed to be made. Any such account or, subject to Section
3.04(i), sub-account shall be an Eligible Account.

            "Excess Rate": With respect to each ARD Loan (and each REO Loan that
relates to an ARD Loan) after the related Anticipated Repayment Date, the excess
of (i) the applicable Revised Rate over (ii) the applicable Mortgage Rate, each
as initially set forth in the Mortgage Loan Schedule.

            "Excess Servicing Strip": Solely with respect to the Loans serviced
by Master Servicer No. 1 and Master Servicer No. 2, with respect to any Loan or
any successor REO Loan with respect thereto, the portion of the related Master
Servicing Fee calculated at an annual rate equal to the excess, if any, of the
related Master Servicing Fee Rate over 0.005% (0.5 basis points) per annum,
subject to reduction by the Trustee pursuant to Section 3.11(a).

            "Exchange Act": The Securities Exchange Act of 1934, as amended from
time to time.

            "Exchange Act Report": The monthly Statement to Certificateholders
to be filed with the Commission, under cover of the related form required by the
Exchange Act.

            "Exemption Favored Party": Any of (i) Credit Suisse Securities (USA)
LLC, (ii) any Person directly or indirectly, through one or more intermediaries,
controlling, controlled by or under common control with Credit Suisse Securities
(USA) LLC, and (iii) any member of any underwriting syndicate or selling group
of which any Person described in clauses (i) and (ii) is a manager or co-manager
with respect to a Class of Certificates (other than the Class R and Class V
Certificates) that is investment grade rated by at least one Rating Agency.

            "Fair Value": As defined in Section 3.18(b).

            "FDIC": Federal Deposit Insurance Corporation or any successor.

            "FHLMC": Federal Home Loan Mortgage Corporation or any successor.

            "Final Distribution Date": The final Distribution Date on which any
distributions are to be made hereunder on the Certificates in connection with
the termination of the Trust.

            "Final Recovery Determination": A determination by the applicable
Special Servicer with respect to any defaulted Loan, Junior Loan or any REO
Property that there has been a recovery of all Insurance and Condemnation
Proceeds, Liquidation Proceeds and other payments or recoveries that, in the
Special Servicer's reasonable good faith judgment, exercised without regard to
any obligation of the Special Servicer to make payments from its own funds
pursuant to Section 3.07(b), will ultimately be recoverable.

            "Fitch": Fitch, Inc. or its successor in interest. If neither such
rating agency nor any successor remains in existence, "Fitch" shall be deemed to
refer to such other nationally recognized statistical rating agency or other
comparable Person designated by the Depositor, notice of which designation shall
be given to the other parties hereto, and specific ratings of Fitch, Inc. herein
referenced shall be deemed to refer to the equivalent ratings of the party so
designated. References herein to "applicable rating category" (other than such
references to "highest applicable rating category") shall, in the case of Fitch,
be deemed to refer to such applicable rating category of Fitch, without regard
to any plus or minus or other comparable rating qualification.

            "Floating Rate Account": The account, accounts or, subject to
Section 3.04(j), sub-accounts created and maintained by the Certificate
Administrator, pursuant to Section 3.04(c), in trust for the Class A-4FL
Certificateholders, which, subject to Section 3.04(j), shall be entitled
"LaSalle Bank National Association, as Certificate Administrator, for the
benefit of Holders of Credit Suisse First Boston Mortgage Securities Corp.,
Commercial Mortgage Pass-Through Certificates, Series 2006-C4, Class A-4FL,
Floating Rate Account." Any such account or sub-account shall be an Eligible
Account or, subject to Section 3.04(j), a sub-account of an Eligible Account.

            "FNMA": Federal National Mortgage Association or any successor
thereto.

            "Form 8-K Disclosure Information": As defined in Section 11.09.

            "GAAP": Generally Accepted Accounting Principles in the United
States.

            "Global Certificate": With respect to any Class of Non-Registered
Certificates, any related Regulation S Global Certificate or Rule 144A Global
Certificate.

            "Grantor Trust": The portion of the Trust Fund consisting of (i) the
Broker Strip Interest and any amounts on deposit in the Collection Account
representing the Broker Strip Interest, (ii) the Excess Interest and the 828-850
Madison Avenue Loan REMIC Residual Interest and the respective proceeds thereof
in the Grantor Trust Distribution Account, and (iii) the Class A-4FL Regular
Interest, the Swap Contract and the Floating Rate Account, intended to be
treated as a grantor trust as defined under subpart E of Part 1 of subchapter J
of the Code.

            "Grantor Trust Distribution Account": The trust account, accounts
or, subject to Section 3.04(i), sub-account created and maintained by the
Certificate Administrator, pursuant to Section 3.04(c), in trust for the
Certificateholders, which, subject to Section 3.04(i), shall be entitled
"LaSalle Bank National Association, as Certificate Administrator in trust for
Holders of Credit Suisse First Boston Mortgage Securities Corp., Commercial
Mortgage Pass-Through Certificates, Series 2006-C4, Grantor Trust Distribution
Account" and which shall be an Eligible Account or, subject to Section 3.04(i),
a sub-account of an Eligible Account. The Grantor Trust Distribution Account
shall not be an asset of any Trust REMIC.

            "Group A Loan": Any Loan identified on the Mortgage Loan Schedule as
belonging to Servicing Group A, together with any other Loan that is substituted
in replacement thereof pursuant to or as contemplated by the related Mortgage
Loan Purchase Agreement.

            "Group B Loan": Any Loan identified on the Mortgage Loan Schedule as
belonging to Servicing Group B, together with any other Loan that is substituted
in replacement thereof pursuant to or as contemplated by the related Mortgage
Loan Purchase Agreement.

            "Hazardous Materials": Any dangerous, toxic or hazardous pollutants,
chemicals, wastes or substances, including, without limitation, those so
identified pursuant to CERCLA or any other federal, state or local environmental
related laws and regulations, and specifically including, without limitation,
asbestos and asbestos-containing materials, polychlorinated biphenyls, radon
gas, petroleum and petroleum products, urea formaldehyde and any substances
classified as being "in inventory," "usable work in process" or similar
classification which would, if classified as unusable, be included in the
foregoing definition.

            "Independent": When used with respect to any specified Person, any
such Person that (i) is in fact independent of the Depositor, each Junior Loan
Holder, each Master Servicer, each Special Servicer, the Trustee, the
Certificate Administrator and any and all Affiliates thereof, (ii) does not have
any material direct financial interest in or any material indirect financial
interest in any of the Depositor, any Junior Loan Holder, any Master Servicer,
any Special Servicer or any Affiliate thereof, and (iii) is not connected with
the Depositor, any Junior Loan Holder, any Master Servicer, any Special Servicer
or any Affiliate thereof as an officer, employee, promoter, underwriter,
trustee, partner, director or Person performing similar functions; provided,
however, that a Person shall not fail to be Independent of the Depositor, any
Junior Loan Holder, any Master Servicer, any Special Servicer, the Trustee, the
Certificate Administrator or any Affiliate thereof merely because such Person is
the beneficial owner of 1% or less of any class of debt or equity securities
issued by the Depositor, such Junior Loan Holder, such Master Servicer, such
Special Servicer, the Trustee, the Certificate Administrator or any Affiliate
thereof, as the case may be, provided that such ownership constitutes less than
1.0% of the total assets of such Person.

            "Independent Contractor": Either (i) any Person that would be an
"independent contractor" with respect to the Trust Fund within the meaning of
Section 856(d)(3) of the Code if the Trust Fund were a real estate investment
trust (except that the ownership test set forth in that Section shall be
considered to be met by any Person that owns, directly or indirectly, 35% or
more of any Class of Certificates, or such other interest in any Class of
Certificates as is set forth in an Opinion of Counsel, which shall be at no
expense to the Trustee, the Certificate Administrator, the Master Servicer or
the Trust, delivered to the Trustee, the Certificate Administrator and the
applicable Master Servicer), so long as the Trust Fund does not receive or
derive any income from such Person and provided that the relationship between
such Person and the Trust Fund is at arm's length, all within the meaning of
Treasury Regulations Section 1.856-4(b)(5) (except that no Master Servicer or
Special Servicer shall be considered to be an Independent Contractor under the
definition in this clause (i) unless an Opinion of Counsel (at the expense of
the party seeking to be deemed an Independent Contractor) has been delivered to
the Trustee to that effect or (ii) any other Person (including the Master
Servicers and the Special Servicers) upon receipt by the Trustee, the
Certificate Administrator and the applicable Master Servicer of an Opinion of
Counsel (at the expense of the party seeking to be deemed an Independent
Contractor), to the effect that the taking of any action in respect of any REO
Property by such Person, subject to any conditions therein specified, that is
otherwise herein contemplated to be taken by an Independent Contractor will not
cause such REO Property to cease to qualify as "foreclosure property" within the
meaning of Section 860G(a)(8) of the Code or cause any income realized in
respect of such REO Property to fail to qualify as Rents from Real Property
(provided that such income would otherwise so qualify).

            "Independent Director": A duly appointed member of the board of
directors of the relevant entity who shall not have been, at the time of such
appointment, at any time after appointment, or at any time in the preceding five
years, (i) a direct or indirect legal or beneficial owner in such entity or any
of its affiliates, (ii) a creditor, supplier, employee, officer, director,
manager or contractor of such entity or any of its affiliates, (iii) a person
who controls such entity or any of its affiliates, or (iv) a member of the
immediate family of a person defined in (i), (ii) or (iii) above.

            "Initial LTV Co-op Basis": With respect to any Co-op Loan, the
related loan-to-value ratio specified on the Mortgage Loan Schedule.

            "Initial Purchaser": Credit Suisse Securities (USA) LLC, as initial
purchaser of the Non-Registered Certificates.

            "Initial Resolution Period": As defined in Section 2.03(b).

            "Institutional Accredited Investor" or "IAI": An "accredited
investor" as defined in any of paragraphs (1), (2), (3) and (7) of Rule 501(a)
under the Securities Act or any entity in which all of the equity owners come
within such paragraphs.

            "Institutional Lender/Owner": One or more of the following: (i) a
bank, saving and loan association, investment bank, insurance company, real
estate investment trust, trust company, commercial credit corporation, pension
plan, pension fund or pension advisory firm, mutual fund, government entity or
plan, (ii) an investment company, money management firm or "qualified
institutional buyer" within the meaning of Rule 144A under the Securities Act,
which is regularly engaged in the business of making or owning mezzanine loans
of similar types to the mezzanine loan in the question, (iii) a trustee in
connection with a securitization of the mezzanine loan, so long as such trustee
or the servicer therefor is an entity that otherwise would be an Institutional
Lender/Owner, (iv) an institution substantially similar to any of the foregoing,
in each case of clauses (i), (ii), (iii) or (iv) of this definition, which (A)
has total assets (in name or under management) in excess of $600,000,000 and
(except with respect to a pension advisory firm or similar fiduciary)
capital/statutory surplus or shareholder's equity of $200,000,000 and (B) is
regularly engaged in the business of making or owning commercial loans or (v) an
entity Controlled (as defined below) by the Underwriters or any of the entities
described in clause (i) above. For purposes of this definition only, "Control"
means the ownership, directly or indirectly, in the aggregate of more than fifty
percent (50%) of the beneficial ownership interests of an entity and the
possession, directly or indirectly, of the power to direct or cause the
direction of the management or policies of an entity, whether through the
ability to exercise voting power, by contract or otherwise ("Controlled" has the
meaning correlative thereto). The applicable Special Servicer shall obtain from
the proposed transferee, and shall be entitled to rely on, (i) an officer's
certificate of a proposed transferee that such transferee satisfies the
requirements of this definition and (ii) in the case of any proposed transferee
that is an entity described in and meeting the criteria in clauses (i)-(iv) of
the immediately preceding sentence, the most recent financial statements of such
transferee.

            "Insurance and Condemnation Proceeds": All proceeds (net of expenses
of collection) paid under any Insurance Policy or in connection with the full or
partial condemnation of a Mortgaged Property, in either case, to the extent such
proceeds are not applied to the restoration of the related Mortgaged Property or
released to the Borrower, in either case, in accordance with the Servicing
Standard.

            "Insurance Policy": With respect to any Loan, Junior Loan or REO
Property, any hazard insurance policy, flood insurance policy, title insurance
policy, earthquake insurance policy, environmental insurance policy, business
interruption insurance policy or other insurance policy that is maintained from
time to time in respect of such Loan, Junior Loan (or the related Mortgaged
Property) or such REO Property, as the case may be.

            "Insured Environmental Event": As defined in Section 3.07.

            "Intercreditor Agreement": The 828-850 Madison Avenue Intercreditor
Agreement, the 280 Park Avenue Intercreditor Agreement, the 3434 North
Washington Boulevard Intercreditor Agreement, the 500 Sansome Office
Intercreditor Agreement or any CBA Intercreditor Agreement, individually or
collectively, as the case may be.

            "Interest Accrual Period": With respect to any Class of Regular
Certificates (other than the Class A-4FL Certificates), the Class A-4FL Regular
Interest, any Uncertificated Lower-Tier Interest or the 828-850 Madison Avenue
Loan REMIC Regular Interest and any Distribution Date, the calendar month
preceding the month in which such Distribution Date occurs. With respect to the
Class A-4FL Certificates for any Distribution Date will be the period from and
including the Distribution Date in the month preceding the month in which the
related Distribution Date occurs (or, in the case of the first Distribution
Date, from and including the Closing Date) to, but excluding, the related
Distribution Date; except that, if the Swap Agreement is terminated and not
replaced or if there exists a continuing payment default by the Swap
Counterparty under the Swap Agreement, then the Interest Accrual Period with
respect to the Class A-4FL Certificates for any Distribution Date will be the
same as the Interest Accrual Period for the Class A-4FL Regular Interest. Each
Interest Accrual Period with respect to any Class of Regular Certificates (other
than the Class A-4FL Certificates), the Class A-4FL Regular Interest or any
Uncertificated Lower-Tier Interest shall be deemed for purposes of this
definition to consist of 30 days. Each Interest Accrual Period with respect to
the Class A-4FL Certificates shall be based upon the actual number of days in
the related Interest Accrual Period; except that, if the Swap Agreement is
terminated and not replaced or if there exists a continuing payment default by
the Swap Counterparty under the Swap Agreement, then any Interest Accrual Period
with respect to the Class A-4FL Certificates will also be deemed to consist of
30 days.

            "Interest-Only Certificates": Collectively, the Class A-X, Class
A-SP and Class A-Y Certificates.

            "Interest Reserve Account": The account, accounts or, subject to
Section 3.04(i), sub-accounts created and maintained by the Certificate
Administrator, pursuant to Section 3.28, in trust for the Certificateholders,
which, subject to Section 3.04(i), shall be entitled "LaSalle Bank National
Association, as Certificate Administrator in trust for the registered holders of
Credit Suisse First Boston Mortgage Securities Corp., Commercial Mortgage
Pass-Through Certificates, Series 2006-C4, Interest Reserve Account," and which
shall be an Eligible Account or, subject to Section 3.04(i), a sub-account of an
Eligible Account.

            "Interest Reserve Loan": Any Loan that accrues interest on an
Actual/360 Basis (or any successor REO Loan with respect thereto), and in the
case of the 828-850 Madison Avenue Loan, the 828-850 Madison Avenue Loan REMIC
Regular Interest.

            "Interest Shortfall Amount": As to any Distribution Date and any
Class of Regular Certificates or the Class A-4FL Regular Interest, the amount,
if any, by which the amount distributed on such Class on such Distribution Date
in respect of interest is less than the related Optimal Interest Distribution
Amount.

            "Interested Person": The Depositor, any Master Servicer, any Special
Servicer, any Independent Contractor engaged by a Special Servicer, any Holder
of a Certificate or any Affiliate of any such Person.

            "Investment Account": As defined in Section 3.06(a).

            "Issue Price": With respect to each Class of Certificates, the
"issue price" as defined in the REMIC Provisions.

            "Junior Loans": The 828-850 Madison Avenue Junior Loan, 3434 North
Washington Boulevard Junior Loan, the 500 Sansome Office Junior Loan and the CBA
B Loans, collectively or individually, as the case may be, each of which are
subordinate in right of payment to the related A Loan.

            "Junior Loan Custodial Account": Each of the custodial accounts or,
subject to Section 3.04(h), sub-accounts (none of which are included in the
Trust Fund) created and maintained by the applicable Master Servicer pursuant to
Section 3.04 on behalf of the respective Junior Loan Holders. Each Junior Loan
Custodial Account shall be maintained as an Eligible Account or, subject to
Section 3.04(h), a sub-account of an Eligible Account.

            "Junior Loan Holder": Any holder of a Junior Loan or any successor
REO Loan with respect thereto.

            "KeyBank": KeyBank National Association, a national banking
association, and its successors in interest.

            "KeyBank Loans": The mortgage loans transferred to the Depositor
pursuant to the KeyBank Mortgage Loan Purchase Agreement and identified on
Schedule II thereto, together with any mortgage loans substituted in replacement
thereof pursuant to the KeyBank Mortgage Loan Purchase Agreement.

            "KeyBank Mortgage Loan Purchase Agreement": The agreement between
the Depositor as purchaser and the KeyBank Mortgage Loan Seller as seller, dated
as of September 1, 2006, relating to the transfer of all of the KeyBank Mortgage
Loan Seller's right, title and interest in and to the mortgage loans identified
on Schedule II thereto.

            "KeyBank Mortgage Loan Seller": KeyBank National Association, a
national banking association, and its successors in interest.

            "KRECM": KeyCorp Real Estate Capital Markets, Inc., an Ohio
corporation, and its successors in interest.

            "LaSalle": LaSalle Bank National Association, a national banking
association, and its successors in interest.

            "LaSalle Mortgage Loan Purchase Agreement": The agreement between
the Depositor as purchaser and the LaSalle Mortgage Loan Seller as seller, dated
as of September 1, 2006, relating to the transfer of all of the LaSalle Mortgage
Loan Seller's right, title and interest in and to the mortgage loans identified
on Schedule II thereto.

            "LaSalle Mortgage Loan Seller": LaSalle Bank National Association, a
national banking association, and its successors in interest.

            "Late Collections": With respect to any Loan, Companion Loan or
Junior Loan, all amounts (except Penalty Charges) received thereon during any
Due Period, whether as payments, Insurance and Condemnation Proceeds,
Liquidation Proceeds or otherwise, which represent late payments or collections
of principal or interest due in respect of such Loan, Companion Loan or Junior
Loan (without regard to any acceleration of amounts due thereunder by reason of
default) on a Due Date in a previous Due Period and not previously received.
With respect to any REO Loan, all amounts (except Penalty Charges) received in
connection with the related REO Property during any Due Period, whether as
Insurance and Condemnation Proceeds, Liquidation Proceeds, REO Revenues or
otherwise, which represent late collections of principal or interest due or
deemed due in respect of such REO Loan or the predecessor Loan (or predecessor
Companion Loan or Junior Loan, as the case may be) (without regard to any
acceleration of amounts due under the predecessor Loan (or predecessor Companion
Loan or Junior Loan, as the case may be) by reason of default) on a Due Date in
a previous Due Period and not previously received.

            "LIBOR": With respect to the Class A-4FL Certificates, the meaning
given such term in the Swap Agreement.

            "Liquidation Event": With respect to any Loan or REO Property, any
of the following events: (i) payment in full of such Loan; (ii) the making of a
Final Recovery Determination with respect to such Loan or REO Property; (iii)
the repurchase or replacement of such Loan (or portion thereof with respect to
the Ritz Carlton Mortgage Loan) by or on behalf of the related Responsible Party
pursuant to Section 7 of the related Mortgage Loan Purchase Agreement or, in the
case of a CSMC Loan, pursuant to the Column Performance Guarantee; (iv) the
purchase of such Loan or REO Property by the Directing Certificateholder or the
Special Servicer or any assignee or Affiliate of either of the foregoing
pursuant to Section 3.18; (v) in the case of any Loan Combination for which the
related Intercreditor Agreement so provides, the purchase of the related A Loan
by a related Junior Loan Holder or Companion Loan Holder; (vi) the purchase of
such Loan by a related mezzanine lender pursuant to the terms of any related
intercreditor agreement; (vii) the sale or other liquidation of such REO
Property hereunder; or (viii) the purchase of such Loan or REO Property) by the
Holders of more than 50% of the Percentage Interests in the Controlling Class, a
Special Servicer or a Master Servicer pursuant to Section 9.01.

            "Liquidation Fee": A fee payable to the applicable Special Servicer
with respect to each Specially Serviced Loan or REO Loan as to which the
applicable Special Servicer receives a full or discounted payoff with respect
thereto from the related Borrower or any Liquidation Proceeds with respect
thereto, equal to the product of the Liquidation Fee Rate and the proceeds of
such full or discounted payoff or the net Liquidation Proceeds (net of the
related costs and expenses associated with the related liquidation) related to
such liquidated Specially Serviced Loan or REO Loan, as the case may be;
provided, however, that no Liquidation Fee shall be payable with respect to
clauses (iii) (so long as the subject repurchase occurs within the applicable
cure period set forth in the related Mortgage Loan Purchase Agreement, as
extended), (iv), (v) (with respect to purchases of the Defaulted Loan by the
related Junior Loan Holder or Companion Loan Holder, so long as such repurchase
occurs within 60 days (or 90 days in the case of the 828-850 Madison Avenue
Loan) from the date the related Loan becomes a Specially Serviced Loan, and in
any case, no such fee is payable with respect to a purchase of the 3434 North
Washington Boulevard Loan), (vi) (so long as the subject purchase occurs within
the time period required under the related intercreditor agreement, or if no
such time period is set forth therein, within 60 days after such mezzanine
lender receives notice of the default giving rise to the purchase option) or,
(vii) of the definition of "Liquidation Proceeds".

            "Liquidation Fee Rate": As defined in Section 3.11.

            "Liquidation Proceeds": Cash amounts (other than REO Revenues)
actually received by or on behalf of the Trust, net of expenses, in connection
with: (i) the liquidation of a Mortgaged Property or other collateral
constituting security for a defaulted Loan or Loan Combination (including in the
case of any Loan Combination, the default of the related Loan, Companion Loan or
Junior Loan, as applicable, collectively), through trustee's sale, foreclosure
sale, REO Disposition or otherwise, exclusive of any portion thereof required to
be released to the related Borrower; (ii) the realization upon any deficiency
judgment obtained against a Borrower; (iii) the purchase of a Defaulted Loan by
the Directing Certificateholder or the applicable Special Servicer or any
assignee or Affiliate of either of the foregoing pursuant to Section 3.18; (iv)
the repurchase or replacement of a Loan by or on behalf of the related
Responsible Party pursuant to Section 7 of the related Mortgage Loan Purchase
Agreement or, in the case of a CSMC Loan, pursuant to the Column Performance
Guarantee; (v) in the case of any Loan Combination for which the related
Intercreditor Agreement so provides, the purchase of the related A Loan by any
related Junior Loan Holder or Companion Loan Holder; (vi) the purchase of any
Loan or Loan Combination by a related mezzanine lender; or (vii) the purchase of
all Loans by Holders of more than 50% of the Percentage Interests in the
Controlling Class, a Special Servicer or a Master Servicer pursuant to Section
9.01.

            "Loan": Each of the mortgage loans transferred and assigned to the
Trustee pursuant to Section 2.01, and from time to time held in the Trust Fund
(including, for the avoidance of doubt, the Defeasance Loans and the Additional
Collateral Loans), and any Loan that becomes a Specially Serviced Loan, but
which does not include any Junior Loan or any Companion Loan. As used herein,
the term "Loan" includes the related Note, Mortgage and other documents
contained in the related Mortgage File and any related agreements.

            "Loan Agreement": With respect to any Loan or Junior Loan, the loan
agreement, if any, between the related Mortgage Loan Originator and the
Borrower, pursuant to which such Loan or Junior Loan was made.

            "Loan Combination": With respect to any A Loan, such A Loan and the
related Junior Loan(s) and/or Companion Loan, collectively.

            "Loan Document(s)": With respect to each Loan, Companion Loan or
Junior Loan, to the extent applicable, the Loan Agreement, the Mortgage, the
Note, the Assignment of Leases (if separate from the Mortgage), the Security
Agreement, any cash management agreement, any ground lease, any letters of
credit, escrow or reserve account information relating to the Additional
Collateral Loans, any UCC Financing Statements, the title insurance policy, all
surveys, all insurance policies, any environmental liability agreements, any
escrow agreements for improvements or lease-up, any guaranties related to such
Loan, Companion Loan or Junior Loan, any prior assignments of mortgage in the
event that the originator is not the originator of record, any Management
Agreement, any collateral assignments of property management agreements and
other services agreements required by the applicable commitment and other loan
documents, any preferred equity and mezzanine loan documents and all
modification, consolidation and extension agreements, if any.

            "Loan Group": Either of Loan Group No. 1 or Loan Group No. 2.

            "Loan Group No. 1": Collectively, all of the Loans that are
identified on the Mortgage Loan Schedule as belonging to Loan Group No. 1 and
any successor REO Loans with respect thereto.

            "Loan Group No. 2": Collectively, all of the Loans that are
identified on the Mortgage Loan Schedule as belonging to Loan Group No. 2 and
any successor REO Loans with respect thereto.

            "Loan-to-Value Ratio": With respect to any Loan, as of any date of
determination, the fraction, expressed as a percentage, the numerator of which
is the principal balance of such Loan at the time of determination, and the
denominator of which is the Appraised Value of the related Mortgaged Property.

            "Lock-Box Account": With respect to any Mortgaged Property, the
account, if any, created pursuant to any documents relating to a Loan to receive
revenues therefrom. Any Lock-Box Account shall be beneficially owned for federal
income tax purposes by the Person who is entitled to receive the reinvestment
income or gain thereon in accordance with the terms and provisions of the
related Loan and Section 3.06, which Person (and not the Trust) may be taxed on
all reinvestment income or gain thereon. The applicable Master Servicer shall be
permitted to make withdrawals therefrom for deposit into the related Cash
Collateral Accounts.

            "Lock-Box Agreement": With respect to any Loan, the lock-box
agreement, if any, between the applicable Mortgage Loan Originator or the
applicable Mortgage Loan Seller and the related Borrower, pursuant to which the
related Lock-Box Account may have been established.

            "Lower-Tier Notional Balance": With respect to the Class LA-Y
Lower-Tier Interest, as of any date of determination, a notional amount equal to
the then Class A-Y Notional Amount.

            "Lower-Tier Principal Amount": With respect to any Uncertificated
Lower-Tier Interest (other than the Class LA-Y Lower-Tier Interest), as of any
date of determination, a principal amount equal to the Original Lower-Tier
Principal Amount of such Uncertificated Lower-Tier Interest as specified in the
Preliminary Statement hereto, as such principal amount may be permanently
reduced (to not less than zero) on each Distribution Date coinciding with or
preceding such date of determination by (i) any deemed distributions of
principal with respect to such Uncertificated Lower-Tier Interest on the subject
Distribution Date pursuant to Section 4.01 and (ii) any Collateral Support
Deficit allocated to such Uncertificated Lower-Tier Interest on the subject
Distribution Date pursuant to Section 4.04.

            "Lower-Tier REMIC": One of three separate REMICs comprising the
Trust Fund, the assets of which consist of the Loans (other than the 828-850
Madison Avenue Loan and exclusive of any Broker Strip Interest and any Excess
Interest thereon), the 828-850 Madison Avenue Loan REMIC Regular Interest, any
REO Property with respect thereto (exclusive of any interest therein that a
Junior Loan Holder or Companion Loan Holder may have), such amounts (exclusive
of any Broker Strip Interest and any Excess Interest) as shall from time to time
be held in a Collection Account (other than with respect to the 828-850 Madison
Avenue Loan), the Interest Reserve Account (other than with respect to the
828-850 Madison Avenue Loan), the Closing Date Deposit Amount, any REO Account
(exclusive of any such amounts that are allocable to a Junior Loan, Companion
Loan or the 828-850 Madison Avenue Loan), if any, and related amounts held in
the Distribution Account, and except as otherwise provided in this Agreement,
all other property included in the Trust Fund that is not in the Upper-Tier
REMIC, the 828-850 Madison Avenue Loan REMIC or designated as a grantor trust
asset in the Preliminary Statement hereto.

            "Lower-Tier Remittance Rate": With respect to any Uncertificated
Lower-Tier Interest, for any Distribution Date, either: (a) in the case of the
Class LA-Y Lower-Tier Interest, a per annum rate equal to the Class A-Y
Pass-Through Rate for such Distribution Date and (b) in the case of any other
Uncertificated Lower-Tier Interest, the Weighted Average Net Mortgage
Pass-Through Rate for such Distribution Date.

            "MAI": Member of the Appraisal Institute.

            "Management Agreement": With respect to any Loan, the management
agreement, if any, by and between the Manager and the related Borrower, or any
successor property management agreement between such parties.

            "Manager": With respect to any Loan, any property manager for the
related Mortgaged Property or Mortgaged Properties.

            "Master Servicer": With respect to (a) the Group A Loans and related
Junior Loans or Companion Loans and any related REO Properties, and any matters
relating to the foregoing, Master Servicer No. 1, and (b) the Group B Loans and
any related REO Properties, and any matters relating to the foregoing, Master
Servicer No. 2.

            "Master Servicer Account": As defined in Section 3.06(a).

            "Master Servicer No. 1": KRECM, in its capacity as master servicer
with respect to the Group A Loans and related Junior Loans or Companion Loans
and any related REO Properties hereunder, or any successor master servicer
appointed as provided herein with respect to the Group A Loans and related
Junior Loans and any related REO Properties.

            "Master Servicer No. 2": NCB, FSB, in its capacity as master
servicer with respect to the Group B Loans and any related REO Properties
hereunder, or any successor master servicer appointed as provided herein with
respect to the Group B Loans and any related REO Properties.

            "Master Servicer Remittance Date": With respect to any Distribution
Date, the Business Day preceding such Distribution Date, commencing in October
2006.

            "Master Servicing Fee": With respect to each Loan (and any successor
REO Loan with respect thereto), the fee payable to the applicable Master
Servicer pursuant to the first paragraph of Section 3.11(a), computed on the
same basis and in the same manner as interest is computed on the related Loan.
In the case of the 828-850 Madison Avenue Loan, "Loan" shall refer to the
828-850 Madison Avenue Loan REMIC Regular Interest for purposes of this
definition as the context requires.

            "Master Servicing Fee Rate": With respect to each Mortgage Loan and
REO Mortgage Loan, the rate per annum specified as such on the Mortgage Loan
Schedule; with respect to each NCB Loan (or any successor REO Loan with respect
thereof), 0.08% per annum; with respect to the 3434 North Washington Boulevard
Junior Loan, 0.01% per annum, with respect to the Companion Loan, 0.01% per
annum and with respect to the 828-850 Madison Avenue Junior Loan, 0.03% per
annum . In the case of the 828-850 Madison Avenue Loan, "Loan" shall refer to
the 828-850 Madison Avenue Loan REMIC Regular Interest for purposes of this
definition as the context requires.

            "Material Breach": As defined in Section 2.03(b).

            "Material Document Defect": As defined in Section 2.03(b).

            "Maturity Date": With respect to any Loan, Companion Loan or Junior
Loan, as of any date of determination, the date on which the last payment of
principal is due and payable under the related Note, after taking into account
all Principal Prepayments received prior to such date of determination, but
without giving effect to (i) any acceleration of the principal of such Loan,
Companion Loan or Junior Loan by reason of default thereunder, (ii) any grace
period permitted by the related Note or (iii) any modification, waiver or
amendment of such Loan, Companion Loan or Junior Loan granted or agreed to by
the applicable Master Servicer or Special Servicer pursuant to Section 3.20
occurring prior to such date of determination.

            "Mezzanine Loan": Any loan constituting "Mezzanine Debt," a
"Mezzanine Loan" or "Future Mezzanine Debt" as identified in Exhibit C-2 hereto.

            "Mezzanine Loan Collateral": With respect to any Mezzanine Loan, any
stock, partnership interests, membership interests or other equity interest in
the related Borrower that has been pledged pursuant to such Mezzanine Loan.

            "Mezzanine Loan Holder": With respect to any Mezzanine Loan, the
Holder or obligee thereof.

            "Monthly Interest Distribution Amount": As to any Distribution Date
and any Class of Regular Certificates and the Class A-4FL Regular Interest, an
amount of interest equal to (a) the Accrued Certificate Interest Amount for such
Class for such Distribution Date, reduced (to not less than zero) by (b) that
portion, if any, of the Uncovered Prepayment Interest Shortfall Amount, if any,
for such Distribution Date that is allocable to such Class pursuant to Section
4.05(a). As to any Distribution Date and any Uncertificated Lower-Tier Interest,
an amount of interest equal to (a) the Uncertificated Accrued Interest Amount
for such Uncertificated Lower-Tier Interest for such Distribution Date, reduced
(to not less than zero) by (b) that portion, if any, of the Uncovered Prepayment
Interest Shortfall Amount, if any, for such Distribution Date that is allocable
to such Uncertificated Lower-Tier Interest pursuant to Section 4.05(b). As to
any Distribution Date and the 828-850 Madison Avenue Loan REMIC Regular
Interest, an amount of interest equal to (a) the Uncertificated Accrued Interest
Amount for the 828-850 Madison Avenue Loan REMIC Regular Interest for such
Distribution Date, reduced (to not less than zero) by (b) that portion, if any,
of the Uncovered Prepayment Interest Shortfall Amount, if any, for such
Distribution Date, that is allocable to the 828-850 Madison Avenue Loan REMIC
Regular Interest pursuant to Section 4.05. As to any Distribution Date and any
Component of the Class A-X and Class A-SP Certificates, an amount of interest
equal to (a) the Accrued Component Interest Amount for such Component for such
Distribution Date, reduced (to not less than zero) by (b) that portion, if any,
of the Uncovered Prepayment Interest Shortfall Amount, if any, for such
Distribution Date that is allocable to such Component pursuant to Section
4.05(a).

            "Monthly Payment": With respect to any Loan (other than any REO
Loan) and any Due Date, the scheduled monthly payment of principal, if any, and
interest at the Mortgage Rate, excluding any Balloon Payment, which is payable
by the related Borrower on such Due Date under the related Note (as such terms
may be changed or modified in connection with a bankruptcy or similar proceeding
involving the related Borrower or by reason of a modification, waiver or
amendment of such Loan granted or agreed to by the applicable Master Servicer or
Special Servicer pursuant to Section 3.20), without regard to any acceleration
of principal of such Loan by reason of a default thereunder. With respect to an
REO Loan, the monthly payment that would otherwise have been payable on the
related Due Date had the related Note not been discharged, determined as set
forth in the preceding sentence and on the assumption that all other amounts, if
any, due thereunder are paid when due.

            "Moody's": Moody's Investors Service, Inc. or its successor in
interest. If neither such rating agency nor any successor remains in existence,
"Moody's" shall be deemed to refer to such other nationally recognized
statistical rating agency or other comparable Person designated by the
Depositor, notice of which designation shall be given to the other parties
hereto, and specific ratings of Moody's Investors Service, Inc. herein
referenced shall be deemed to refer to the equivalent ratings of the party so
designated. References herein to "applicable rating category" (other than such
references to "highest applicable rating category") shall, in the case of
Moody's, be deemed to refer to such applicable rating category of Moody's,
without regard to any plus or minus or other comparable rating qualification.

            "Mortgage": With respect to any Loan or Junior Loan, the mortgage,
deed of trust, deed to secure debt or other instrument securing a Note and
creating a lien on the related Mortgaged Property.

            "Mortgage File":

            With respect to any Loan, the following documents on a collective
basis:

                  (i) the original Note (or for the Ritz Carlton Mortgage Loan,
            Notes, or a lost note affidavit with a customary indemnification
            provision), bearing, or accompanied by, all prior and intervening
            endorsements, assignments or allonges showing a complete chain of
            endorsement or assignment from the applicable Mortgage Loan
            Originator either in blank or to the applicable Mortgage Loan
            Seller, and further endorsed (at the direction of the Depositor
            given pursuant to the related Mortgage Loan Purchase Agreement) by
            the applicable Mortgage Loan Seller, on its face or by allonge
            attached thereto, without recourse, either in blank or to the order
            of the Trustee in the following form: "Pay to the order of Wells
            Fargo Bank, N.A., as trustee for the registered Holders of Credit
            Suisse First Boston Mortgage Securities Corp., Commercial Mortgage
            Pass-Through Certificates, Series 2006-C4, without recourse,
            representation or warranty, express or implied";

                  (ii) a duplicate original Mortgage or a counterpart thereof,
            or if such Mortgage has been returned by the related recording
            office, (A) an original, (B) a certified copy or (C) a copy thereof
            from the applicable recording office, and originals or counterparts
            (or originals, certified copies or copies from the applicable
            recording office) of any intervening assignments thereof from the
            related Mortgage Loan Originator to the applicable Mortgage Loan
            Seller, in each case in the form submitted for recording or, if
            recorded, with evidence of recording indicated thereon;

                  (iii) an original assignment of the Mortgage, in recordable
            form (except for any missing recording information and, if
            applicable, completion of the name of the assignee), from the
            applicable Mortgage Loan Seller (or the applicable Mortgage Loan
            Originator) either in blank or to "Wells Fargo Bank, N.A., as
            trustee for the registered Holders of Credit Suisse First Boston
            Mortgage Securities Corp., Commercial Mortgage Pass-Through
            Certificates, Series 2006-C4";

                  (iv) an original, counterpart or copy of any related
            Assignment of Leases (if such item is a document separate from the
            Mortgage) and the originals, counterparts or copies of any
            intervening assignments thereof from the applicable Mortgage Loan
            Originator of the Loan to the applicable Mortgage Loan Seller, in
            each case in the form submitted for recording or, if recorded, with
            evidence of recording thereon;

                  (v) an original assignment of any related Assignment of Leases
            (if such item is a document separate from the Mortgage and to the
            extent not already assigned pursuant to clause (iii) above), in
            recordable form (except for any missing recording information and,
            if applicable, completion of the name of the assignee), from the
            applicable Mortgage Loan Seller (or the applicable Mortgage Loan
            Originator), either in blank or to "Wells Fargo Bank, N.A., as
            trustee for the registered Holders of Credit Suisse First Boston
            Mortgage Securities Corp., Commercial Mortgage Pass-Through
            Certificates, Series 2006-C4";

                  (vi) an original or copy of any related Security Agreement (if
            such item is a document separate from the Mortgage), and the
            originals or copies of any intervening assignments thereof from the
            applicable Mortgage Loan Originator to the applicable Mortgage Loan
            Seller;

                  (vii) an original assignment of any related Security Agreement
            (if such item is a document separate from the Mortgage and to the
            extent not already assigned pursuant to clause (iii) above), from
            the applicable Mortgage Loan Seller (or the applicable Mortgage Loan
            Originator), either in blank or to "Wells Fargo Bank, N.A., as
            trustee for the registered Holders of Credit Suisse First Boston
            Mortgage Securities Corp., Commercial Mortgage Pass-Through
            Certificates, Series 2006-C4," which assignment may be included as
            part of an omnibus assignment covering other documents relating to
            the Loan (provided that such omnibus assignment is effective under
            applicable law);

                  (viii) originals or copies of all (A) assumption agreements,
            (B) modifications, (C) written assurance agreements and (D)
            substitution agreements, together with any evidence of recording
            thereon or in the form submitted for recording, when appropriate, in
            those instances where the terms or provisions of the Mortgage, Note
            or any related security document have been modified or the Loan has
            been assumed;

                  (ix) the original lender's title insurance policy or a copy
            thereof (together with all endorsements or riders that were issued
            with or subsequent to the issuance of such policy), or if the policy
            has not yet been issued, the original or a copy of a binding written
            commitment (which may be a pro forma or specimen title insurance
            policy which has been accepted or approved in writing by the related
            title insurance company) or interim binder that is marked as binding
            and countersigned by the title company, insuring the priority of the
            Mortgage as a first lien on the related Mortgaged Property (which
            may be by means of executed escrow instructions), relating to such
            Loan;

                  (x) the original or a counterpart of any guaranty of the
            obligations of the Borrower under the Loan;

                  (xi) UCC acknowledgement, certified or other copies of all UCC
            Financing Statements and continuation statements which show the
            filing or recording thereof or copies thereof in the form submitted
            for filing or recording (including the filing number or other
            similar filing information) or, alternatively, other evidence of
            filing or recording (including the filing number or other similar
            filing information) acceptable to the Trustee (including, without
            limitation, evidence of such filed or recorded UCC Financing
            Statement as shown on a written UCC search report from a reputable
            search firm, such as CSC/LexisNexis Document Solutions, Corporation
            Service Company, CT Corporation System and the like or printouts of
            on-line confirmations from such UCC filing or recording offices or
            authorized agents thereof) sufficient to perfect (and maintain the
            perfection of) the security interest held by the related Mortgage
            Loan Originator (and each assignee of record prior to the Trustee)
            in and to the personalty of the Borrower at the related Mortgaged
            Property, and original UCC Financing Statement assignments, in a
            form suitable for filing or recording, sufficient to assign each
            such UCC Financing Statement to the Trustee;

                  (xii) the original or copy of the power of attorney (with
            evidence of recording thereon) granted by the Borrower if the
            Mortgage, Note or other document or instrument referred to above was
            not signed by the Borrower;

                  (xiii) either: (A) for NCB Loans, an original or copy of any
            subordination agreement, standstill agreement or other
            intercreditor, co-lender or similar agreement relating to
            subordinate indebtedness, including any mezzanine loan documents or
            preferred equity documents; or (B) for all other Loans with respect
            to any debt of a Borrower or mezzanine borrower permitted under the
            related Loan, an original or copy of a subordination agreement,
            standstill agreement or other intercreditor, co-lender or similar
            agreement relating to such other debt, if any, including any
            mezzanine loan documents or preferred equity documents, and a copy
            of the Note relating to such other debt (if such other debt is also
            secured by the related Mortgage);

                  (xiv) with respect to any Cash Collateral Accounts and
            Lock-Box Accounts, an original or copy of any related account
            control agreement;

                  (xv) an original or copy of any related Loan Agreement (if
            separate from the related Mortgage), and an original or copy of any
            related Lock-Box Agreement or Cash Collateral Account Agreement (if
            separate from the related Mortgage and Loan Agreement);

                  (xvi) the originals of letters of credit, if any, relating to
            the Loans and amendments thereto which entitle the Trust to draw
            thereon; provided that in connection with the delivery of the
            Mortgage File to the Trust, such originals shall be delivered to the
            applicable Master Servicer and copies thereof shall be delivered to
            the Trustee;

                  (xvii) any related environmental insurance policies and any
            environmental guarantees or indemnity agreements or copies thereof;

                  (xviii) originals or copies of the ground lease, ground lease
            memorandum and ground lease estoppels, if any, and any originals or
            copies of amendments, modifications or extensions thereto, if any;

                  (xix) for properties other than residential cooperative
            properties, the original or copy of any property management
            agreement;

                  (xx) copies of franchise agreements and franchisor comfort
            letters, if any, for hospitality properties and any applicable
            transfer/assignment documents;

                  (xxi) except in the case of NCB Loans, the checklist of the
            related Loan Documents, if any, that is included in the Mortgage
            File for the related Loan;

                  (xxii) a copy of the mortgage note evidencing the related
            Companion Loan or Junior Loan;

                  (xxiii) any additional documents required to be added to the
            Mortgage File pursuant to this Agreement; and

                  (xxiv) with respect to the 828-850 Madison Avenue Loan, the
            original or a copy of the related REMIC Declaration.

            Whenever the term "Mortgage File" is used to refer to documents
actually received by the Trustee, such term shall not be deemed to include such
documents and instruments required to be included therein unless they are
actually so received.

            With respect to the Ritz Carlton Mortgage Loan, the delivery of the
Mortgage File by either BCRE or Column shall satisfy the delivery requirements
for both BCRE and Column.

            "Mortgage Interest Accrual Period": With respect to any Loan, the
period during which interest accrues pursuant to the related Note.

            "Mortgage Loan Originator": Any institution that originated a Loan.

            "Mortgage Loan Purchase Agreement": Any of the CSMC Mortgage Loan
Purchase Agreement, the LaSalle Mortgage Loan Purchase Agreement, the KeyBank
Mortgage Loan Purchase Agreement, the BCRE Mortgage Loan Purchase Agreement or
the NCB, FSB Mortgage Loan Purchase Agreement.

            "Mortgage Loan Schedule": The list of Loans transferred on the
Closing Date to the Trustee as part of the Trust Fund, attached hereto as
Exhibit B, which list sets forth the following information with respect to each
Loan:

                  (i) the loan number (as specified in Annex A to the Prospectus
            Supplement);

                  (ii) the property name;

                  (iii) the street address (including city, state and zip code)
            of the related Mortgaged Property;

                  (iv) the Mortgage Rate in effect at the Cut-off Date;

                  (v) the Net Mortgage Rate in effect at the Cut-off Date;

                  (vi) the original principal balance;

                  (vii) the Cut-off Date Principal Balance;

                  (viii) the (a) remaining term to stated maturity, (b) Maturity
            Date and (c) with respect to each ARD Loan, the Anticipated
            Repayment Date;

                  (ix) the original and remaining amortization terms;

                  (x) the amount of the Monthly Payment due on the first Due
            Date following the Cut-off Date;

                  (xi) the number of units, pads, rooms or square footage with
            respect to the Mortgaged Property;

                  (xii) the Loan interest accrual method;

                  (xiii) the total of the Trustee Fee Rate, the applicable
            Primary Servicing Fee Rate, the applicable Master Servicing Fee Rate
            and the applicable Broker Strip Rate, if any;

                  (xiv) the Due Date;

                  (xv) whether such loan is an ARD Loan;

                  (xvi) whether the Loan is subject to lockout/defeasance;

                  (xvii) whether the related Mortgaged Property was covered by
            earthquake insurance at the time of origination, or if the loan
            documents require such insurance;

                  (xviii) whether such Loan has the benefit of an Environmental
            Insurance Policy;

                  (xix) whether such Loan is secured by the related Borrower's
            interest in ground leases;

                  (xx) which Servicing Group includes such Loan;

                  (xxi) if such Loan is a Co-op Loan, the Initial LTV Co-op
            Basis; and

                  (xxii) whether such Loan is secured by a letter of credit.

            Such Mortgage Loan Schedule also shall set forth the aggregate of
the amounts described under clause (vii) above for all of the Loans. Such list
may be in the form of more than one list, collectively setting forth all of the
information required.

            "Mortgage Loan Seller": Any of (i) the CSMC Mortgage Loan Seller,
(ii) the LaSalle Mortgage Loan Seller, (iii) the KeyBank Mortgage Loan Seller,
(iv) the BCRE Mortgage Loan Seller and (v) the NCB, FSB Mortgage Loan Seller.

            "Mortgage Pool": All of the Loans and any successor REO Loans with
respect thereto, collectively, as of any particular date of determination. The
Mortgage Pool shall not include any Companion Loan or Junior Loan.

            "Mortgage Rate": With respect to: (i) any Loan, Companion Loan or
Junior Loan on or prior to its Maturity Date, the annual rate at which interest
is scheduled (in the absence of a default and without giving effect to any
Revised Rate) to accrue on such Loan, Companion Loan or Junior Loan, as the case
may be from time to time in accordance with the related Note and applicable law;
(ii) any Loan, Companion Loan or Junior Loan after its Maturity Date, the
annualized rate described in clause (i) above determined without regard to the
passage of such Maturity Date; and (iii) any REO Loan, the annualized rate
described in clause (i) or (ii), as applicable, above, determined as if the
predecessor Loan, Companion Loan or Junior Loan, as the case may be, had
remained outstanding. In the case of the 828-850 Madison Avenue Loan, "Loan"
shall refer to the 828-850 Madison Avenue Loan REMIC Regular Interest for
purposes of this definition and not the underlying Loan or REO Loan.

            "Mortgaged Property": The underlying real property (including any
REO Property) that secures a Loan or Loan Combination, in each case consisting
of a parcel or parcels of land improved by a commercial and/or multifamily
building or facility, together with any personal property (to the extent the
same are owned by the Borrower and necessary in connection with the operation of
the related property), fixtures, leases and other property or rights pertaining
thereto.

            "NCB/FSB Loans": The mortgage loans transferred to the Depositor
pursuant to the NCB/FSB Mortgage Loan Purchase Agreement and identified on
Schedule II thereto, together with any mortgage loans substituted in replacement
thereof pursuant to the NCB/FSB Mortgage Loan Purchase Agreement.

            "NCB, FSB Mortgage Loan Purchase Agreement": The agreement between
the Depositor as purchaser and the NCB, FSB Mortgage Loan Seller as seller,
dated as of September 1, 2006, relating to the transfer of all of the NCB, FSB
Mortgage Loan Seller's right, title and interest in and to the mortgage loans
identified on Schedule II thereto.

            "NCB, FSB Mortgage Loan Seller": NCB, FSB, a federal savings bank,
or its successor in interest.

            "NCB Subordinate Debt Conditions": With respect to a Borrower
encumbering a Mortgaged Property relating to an NCB, FSB Loan that is a Co-op
Loan with a subordinate mortgage, the following conditions: (i) each of the
loans, or the sole loan, to be secured by each such subordinate mortgage is made
by NCB, FSB or any Affiliate thereof, (ii) each such subordinate mortgage is
expressly subject and subordinate to the lien of the Mortgage encumbering the
Mortgaged Property in question, (iii) each such subordinate mortgage is
expressly made in compliance with the underwriting standards which NCB, FSB
customarily employs in connection with making subordinate mortgages for its own
mortgage loan portfolio, (iv) as of the date of the closing of the subordinate
mortgage loan in question, the New Loan-to-Value Ratio (as defined below) does
not exceed 40%, (v) NCB, FSB or any Affiliate thereof that originates the
subordinate mortgage loan, executes and delivers to the Trustee a subordination
agreement with respect to such subordinate mortgage in substantially the form of
Exhibit Q hereto (provided that the Trustee shall have no responsibility for
determining the sufficiency or validity thereof), (vi) if the subordinate
mortgage loan will not be a fully amortizing loan, the stated maturity date of
the subordinate mortgage loan shall be no earlier than the maturity date of the
related Co-op Loan, (vii) the subordinate mortgage loan shall have interest
payable on a current basis, with no deferral, (viii) the subordinate mortgage
loan is made principally for the purpose of funding capital expenditures, major
repairs or reserves at or with respect to the Mortgaged Property in question and
(ix) the aggregate amount of subordinate debt encumbering the Mortgaged Property
in question does not exceed $7,500,000. For purposes of this definition, and
notwithstanding anything herein to the contrary: "Mortgage Debt" shall mean the
sum of (x) the aggregate outstanding principal balance of all loans secured by
one or more mortgages then encumbering the Mortgaged Property in question
(including the related Co-op Loan and any then existing subordinate mortgage
loans) and (y) the principal amount of the proposed new subordinate mortgage
loan; "New Loan-to-Value Ratio" shall mean, as of any date for any Co-op Loan,
the fraction, expressed as a percentage, the numerator of which is the Mortgage
Debt for the related Mortgaged Property on such date, and the denominator of
which is the Appraised Value of the related Mortgaged Property; and "Appraisal"
shall mean an appraisal of the applicable Mortgaged Property by an Appraiser
made in conformance with NCB, FSB's customary underwriting requirements, not
more than one year prior to the origination date of the related Co-op Loan and
reviewed by Master Servicer No. 2.

            "Net Investment Earnings": With respect to any Collection Account,
any Lock-Box Account, any Cash Collateral Account, any Servicing Account or any
REO Account, for any period beginning on a Distribution Date and ending on the
following Master Servicer Remittance Date, the amount, if any, by which the
aggregate of all interest and other income realized during such period on funds
relating to the Trust Fund held in such account (and which is not required to be
paid to the related Borrower) exceeds the aggregate of all losses, if any,
incurred during such period in connection with the investment of such funds in
such account in accordance with Section 3.06.

            "Net Investment Loss": With respect to any of any Collection
Account, any Lock-Box Account, any Cash Collateral Account, any Servicing
Account or any REO Account for any period beginning on a Distribution Date and
ending on the following Master Servicer Remittance Date, the amount, if any, by
which the aggregate of all losses, if any, incurred during such period in
connection with the investment of funds relating to the Trust Fund held in such
account (and which investment is not directed by the related Borrower) in
accordance with Section 3.06 exceeds the aggregate of all interest and other
income realized during such period on such funds in such account.

            "Net Mortgage Pass-Through Rate":

            (A) With respect to any Loan (or any successor REO Loan with respect
thereto) that accrues interest on a 30/360 Basis, for any Distribution Date, an
annual rate equal to the Original Net Mortgage Rate for such Loan (or, in the
case of a Specially Designated Co-op Loan (or any successor REO Loan with
respect thereto), such Original Net Mortgage Rate minus 0.10% per annum); and

            (B) With respect to any Loan (or any successor REO Loan with respect
thereto) that accrues interest on an Actual/360 Basis and the 828-850 Madison
Avenue Loan REMIC Regular Interest, for any Distribution Date, an annual rate
generally equal to twelve times a fraction, expressed as a percentage:

            (1)   the numerator of which fraction is, subject to adjustment as
                  described below in this definition, an amount of interest
                  equal to the product of (a) the number of days in the related
                  Interest Accrual Period, multiplied by (b) the Stated
                  Principal Balance of such Loan (or such REO Loan) immediately
                  preceding such Distribution Date, multiplied by (c) 1/360,
                  multiplied by (d) the Original Net Mortgage Rate for such Loan
                  (or, in the case of a Specially Designated Co-op Loan (or any
                  successor REO Loan with respect thereto), such Original Net
                  Mortgage Rate minus 0.10% per annum); and

            (2)   the denominator of which is the Stated Principal Balance of
                  such Loan (or such REO Loan) immediately preceding that
                  Distribution Date.

            Notwithstanding the foregoing, if the subject Distribution Date
occurs during January, except during a leap year, or February of any year
subsequent to 2006 (unless the Final Distribution Date occurs in such month),
then the amount of interest referred to in the fractional numerator described in
clause (B)(1) above will be decreased to reflect any Withheld Amounts with
respect to the subject Loan (or REO Loan) transferred from the Distribution
Account to the Interest Reserve Account in such calendar month. Furthermore, if
the subject Distribution Date occurs during March of any year subsequent to 2006
(or February, if the final Distribution Date occurs in such month) then the
amount of interest referred to in the fractional numerator described in clause
(B)(1) above will be increased to reflect any Withheld Amounts with respect to
the subject Loan (or REO Loan) or 828-850 Madison Avenue Loan REMIC Regular
Interest transferred from the Interest Reserve Account to the Distribution
Account for distribution on such Distribution Date.

            "Net Mortgage Rate": With respect to any Loan, Junior Loan, 828-850
Madison Avenue Loan REMIC Regular Interest or REO Loan, as of any date of
determination, a per annum rate equal to the related Mortgage Rate then in
effect, minus the sum of the related Master Servicing Fee Rate, the related
Primary Servicing Fee Rate (if any), the related Broker Strip Rate (if any) and
the Trustee Fee Rate.

            "Net Operating Income": With respect to any Mortgaged Property
(other than a residential cooperative property), for any Borrower's fiscal year
end, the total operating revenues derived from such Mortgaged Property during
such period, minus the total operating expenses incurred in respect of such
Mortgaged Property during such period, other than (i) non-cash items such as
depreciation, (ii) amortization, (iii) actual capital expenditures and (iv) debt
service on the related Loan or Loan Combination, as applicable.

            "New Lease": Any lease of REO Property entered into at the direction
of the applicable Special Servicer on behalf of the Trust, including any lease
renewed, modified or extended on behalf of the Trust, if the Trust Fund has the
right to renegotiate the terms of such lease.

            "Nonrecoverable Advance": Any Nonrecoverable P&I Advance or
Nonrecoverable Servicing Advance or any portion thereof.

            "Nonrecoverable P&I Advance": The portion of any P&I Advance
(including interest accrued thereon at the Reimbursement Rate) previously made
or proposed to be made in respect of a Loan or REO Loan which, in the judgment
(exercised in accordance with the Servicing Standard in the case of the judgment
of a Master Servicer or Special Servicer) of the applicable Master Servicer, the
applicable Special Servicer or the Trustee, will not be ultimately recoverable,
together with any accrued and unpaid interest thereon, from Late Collections or
any other recovery on or in respect of such Loan or REO Loan. The determination
by a Master Servicer, a Special Servicer or the Trustee that it has made (or, in
the case of a determination made by the applicable Special Servicer, that a
Master Servicer has made) a Nonrecoverable P&I Advance or that any proposed P&I
Advance, if made, would constitute a Nonrecoverable P&I Advance, shall be
evidenced by an Officer's Certificate delivered (i) to the Trustee, the
Certificate Administrator and the Depositor, in the case of a Master Servicer,
(ii) to the applicable Master Servicer, the Certificate Administrator and the
Trustee in the case of a Special Servicer, (iii) to the Depositor, the
Certificate Administrator and the applicable Master Servicer, in the case of the
Trustee, and (iv) in each case, to the Directing Certificateholder, any
Requesting Subordinate Certificateholder (at the expense of such requesting
Holder) and, provided that the certifying party has actual knowledge of the
identity thereof, any related Junior or Companion Loan Holder(s) (or, in the
case of a Junior Loan or Companion Loan that is part of a rated commercial
mortgage securitization, to the related master servicer). Such Officer's
Certificate shall set forth such determination of nonrecoverability and the
considerations of the applicable Master Servicer, the applicable Special
Servicer, or the Trustee, as the case may be, forming the basis of such
determination (which shall include but shall not be limited to information, to
the extent available, such as related income and expense statements, rent rolls,
occupancy status, property inspections, and shall include an Appraisal (provided
that if an Appraisal has been obtained within the past 12 months, no new
Appraisal is required) of the related Mortgaged Property, the cost of which
Appraisal shall be advanced by the applicable Master Servicer as a Servicing
Advance or, depending on the timing of payment, subject to Section 3.03(c), paid
out of the applicable Collection Account). In addition, in considering whether a
P&I Advance is nonrecoverable, the applicable Master Servicer, the applicable
Special Servicer or the Trustee, as applicable, will be entitled to give due
regard to the existence of any outstanding Nonrecoverable Advance or
Workout-Delayed Reimbursement Amount with respect to any other Trust Mortgage
Loans or REO Trust Mortgage Loans the reimbursement of which, at the time of
such consideration, is being deferred or delayed by the applicable Master
Servicer or the Trustee because there is insufficient principal available for
such reimbursement, in light of the fact that proceeds of the Trust Mortgage
Loan or REO Trust Mortgage Loan as to which a nonrecoverability determination is
being made are a source of reimbursement not only for the P&I Advance under
consideration, but also as a potential source of the reimbursement of the
outstanding Nonrecoverable Advance or Workout-Delayed Reimbursement Amount being
delayed or deferred. The Officer's Certificate referred to in the second
preceding sentence shall be accompanied by the Appraisal and all other
supporting documentation relevant to the subject parties' nonrecoverability
determination. The Trustee shall be entitled to conclusively rely on the
applicable Master Servicer's determination that a P&I Advance is nonrecoverable.
The applicable Master Servicer and the Trustee shall conclusively rely on and be
bound by the applicable Special Servicer's determination that a P&I Advance is
nonrecoverable, provided, however, that in the absence of such determination by
the applicable Special Servicer, the applicable Master Servicer and the Trustee
will be entitled to make their own determination that a P&I Advance is
nonrecoverable, and in no event shall a determination by the applicable Special
Servicer that a previously made or proposed P&I Advance would be recoverable be
binding on the applicable Master Servicer or Trustee. Any determination made by
the Master Servicer or any master servicer of the 280 Park Avenue Companion Loan
(upon the securitization of such loan which is rated by one or more Rating
Agencies) regarding the nonrecoverability of any P&I Advance with respect to any
portion of the 280 Park Avenue Total Loan will be binding on the Trust Fund and
the trust fund containing the 280 Park Avenue Companion Loan.

            "Nonrecoverable Servicing Advance": The portion of any Servicing
Advance (including interest accrued thereon at the Reimbursement Rate)
previously made or proposed to be made in respect of a Loan or REO Property
which, in the judgment (exercised in accordance with the Servicing Standard in
the case of the judgment of a Master Servicer or Special Servicer) of the
applicable Master Servicer, the applicable Special Servicer or the Trustee, will
not be ultimately recoverable, together with any accrued and unpaid interest
thereon, from Late Collections or any other recovery on or in respect of such
Loan or REO Property. The determination by a Master Servicer, a Special Servicer
or the Trustee that it has made (or, in the case of a determination made by the
applicable Special Servicer, that a Master Servicer has made) a Nonrecoverable
Servicing Advance or that any proposed Servicing Advance, if made, would
constitute a Nonrecoverable Servicing Advance, shall be evidenced by an
Officer's Certificate delivered (i) to the Trustee, the Certificate
Administrator and the Depositor, in the case of a Master Servicer, (ii) to the
applicable Master Servicer, the Certificate Administrator and the Trustee in the
case of a Special Servicer, (iii) to the Depositor, the Certificate
Administrator and the applicable Master Servicer, in the case of the Trustee,
and (iv) and in each case, to the Directing Certificateholder, any Requesting
Subordinate Certificateholder (at the expense of such requesting Holder) and,
provided that the certifying party has actual knowledge of the identity thereof,
any related Junior or Companion Loan Holder(s) (or, in the case of a Junior Loan
or Companion Loan that is part of a rated commercial mortgage securitization, to
the related master servicer). Such Officer's Certificate shall set forth such
determination of nonrecoverability and the considerations of the applicable
Master Servicer, the applicable Special Servicer or the Trustee, as the case may
be, forming the basis of such determination (which shall include but shall not
be limited to information, to the extent available, such as related income and
expense statements, rent rolls, occupancy status and property inspections, and
shall include an Appraisal (provided that if an Appraisal has been obtained
within the past 12 months, no new Appraisal is required) of the related
Mortgaged Property, the cost of which Appraisal shall be advanced by the
applicable Master Servicer as a Servicing Advance or, depending on the timing of
payment, subject to Section 3.03(c), paid out of the applicable Collection
Account). In addition, in considering whether a Servicing Advance is
nonrecoverable, the applicable Master Servicer, the applicable Special Servicer
or the Trustee, as applicable, will be entitled to give due regard to the
existence of any outstanding Nonrecoverable Advance or Workout-Delayed
Reimbursement Amount with respect to any other Trust Mortgage Loans or REO Trust
Mortgage Loans the reimbursement of which, at the time of such consideration, is
being deferred or delayed by the applicable Master Servicer or the Trustee
because there is insufficient principal available for such reimbursement, in
light of the fact that proceeds of the Trust Mortgage Loan or REO Trust Mortgage
Loan as to which a nonrecoverability determination is being made are a source of
reimbursement not only for the Servicing Advance under consideration, but also
as a potential source of the reimbursement of the outstanding Nonrecoverable
Advance or Workout-Delayed Reimbursement Amount being delayed or deferred. The
Officer's Certificate referred to in the second preceding sentence shall be
accompanied by the Appraisal and all other supporting documentation relevant to
the subject parties' nonrecoverability determination. The Trustee will be
entitled to conclusively rely on the applicable Master Servicer's determination
that a Servicing Advance is nonrecoverable. The applicable Master Servicer and
the Trustee shall conclusively rely on and be bound by the applicable Special
Servicer's determination that a Servicing Advance is a Nonrecoverable Servicing
Advance, provided, however, that in the absence of such determination by the
applicable Special Servicer, the applicable Master Servicer and the Trustee will
be entitled to make their own determination that a Servicing Advance is a
Nonrecoverable Servicing Advance, and in no event shall a determination by the
applicable Special Servicer that a previously made or proposed Servicing Advance
would be recoverable be binding on the applicable Master Servicer or Trustee.

            "Non-Registered Certificate": Any Certificate that has not been
subject to registration under the Securities Act. As of the Closing Date, the
Class A-X, Class A-SP, Class A-Y, Class B, Class C, Class D, Class E, Class F,
Class G, Class H, Class J, Class K, Class L, Class M, Class N, Class O, Class P,
Class Q, Class S, Class R and Class V Certificates will constitute
Non-Registered Certificates.

            "Non-United States Tax Person": Any Person other than a United
States Tax Person.

            "Note": The original executed note (or, if applicable, multiple
notes collectively) evidencing the indebtedness of a Borrower under a Loan or
Junior Loan, as the case may be, together with any rider, addendum or amendment
thereto.

            "NRSRO": A nationally recognized statistical rating organization as
the term is used in federal securities laws.

            "Officer's Certificate": A certificate signed by a Servicing Officer
of a Master Servicer or a Special Servicer, as the case may be, or a Responsible
Officer of the Trustee or the Certificate Administrator, as the case may be.

            "Opinion of Counsel": A written opinion of counsel, who may be
salaried counsel for the Depositor, a Master Servicer or a Special Servicer,
acceptable in form and delivered to the Trustee and the Certificate
Administrator, except that any opinion of counsel relating to (a) the
qualification of any Trust REMIC as a REMIC, (b) compliance with the REMIC
Provisions or (c) the resignation of the Depositor, a Master Servicer or a
Special Servicer pursuant to Section 6.04 must be an opinion of counsel that is
in fact Independent of the Depositor, the Master Servicer or the Special
Servicer, as applicable.

            "Optimal Interest Distribution Amount": As to any Distribution Date
and any Class of Regular Certificates (other than the Class A-4FL Certificates)
and the Class A-4FL Regular Interest, the sum of the Monthly Interest
Distribution Amount and the Unpaid Interest Shortfall Amount for such Class for
such Distribution Date. As to any Distribution Date and any Uncertificated
Lower-Tier Interest, the sum of the Monthly Interest Distribution Amount and the
Unpaid Interest Shortfall Amount for such Uncertificated Lower-Tier Interest for
such Distribution Date. As to any Distribution Date and the 828-850 Madison
Avenue Loan REMIC Regular Interest, the sum of the Monthly Interest Distribution
Amount and the Unpaid Interest Shortfall Amount for the 828-850 Madison Avenue
Loan REMIC Regular Interest for such Distribution Date.

            "Original Class Principal Balance": With respect to the Class A-4FL
Regular Interest or any Class of Sequential Pay Certificates (other than the
Class A-4FL Certificates), the initial aggregate principal amount thereof as of
the Closing Date, in each case as specified in the Preliminary Statement hereto,
and with respect to the Class A-4FL Certificates, $150,000,000.

            "Original Lower-Tier Notional Balance": With respect to the Class
LA-Y Lower-Tier Interest, the initial notional balance thereof as of the Closing
Date, as specified in the Preliminary Statement hereto.

            "Original Lower-Tier Principal Amount": With respect to any
Uncertificated Lower-Tier Interest (other than the Class LA-Y Lower-Tier
Interest), the principal amount thereof as of the Closing Date, in each case as
specified in the Preliminary Statement hereto.

            "Original Net Mortgage Rate": With respect to any Loan, the Net
Mortgage Rate in effect for such Loan as of the Closing Date (or, in the case of
any Loan substituted in replacement of another Loan pursuant to or as
contemplated by the related Mortgage Loan Purchase Agreement, as of the date of
substitution). In the case of the 828-850 Madison Avenue Loan, "Loan" shall
refer to the 828-850 Madison Avenue Loan REMIC Regular Interest for purposes of
this definition and not the underlying Loan or REO Loan.

            "Original Class Notional Amount": With respect to any Class of
Interest-Only Certificates, the initial aggregate notional balance thereof as of
the Closing Date, in each case as specified in the Preliminary Statement hereto.

            "Original Value": The Appraised Value of a Mortgaged Property based
upon the Appraisal conducted in connection with the origination of the related
Loan.

            "Origination Required Insurance Amounts": As defined in Section
3.07(h).

            "OTS": The Office of Thrift Supervision or any successor thereto.

            "Ownership Interest": As to any Certificate, any ownership or
security interest in such Certificate as the Holder thereof and any other
interest therein, whether direct or indirect, legal or beneficial, as owner or
as pledgee.

            "P&I Advance": As to any Loan (or any successor REO Loan with
respect thereto), any advance made by the Master Servicer or the Trustee, as
applicable, pursuant to Section 4.03 or Section 7.05.

            "P&I Advance Determination Date": With respect to any Distribution
Date, the second Business Day immediately prior thereto.

            "Pass-Through Rate": With respect to each Class of Certificates and
the Class A-4FL Regular Interest, the respective per annum rate listed below:

Class A-1:                Class A-1 Pass-Through Rate
Class A-1-A:              Class A-1-A Pass-Through Rate
Class A-2:                Class A-2 Pass-Through Rate
Class A-AB:               Class A-AB Pass-Through Rate
Class A-3:                Class A-3 Pass-Through Rate
Class A-4FL Regular       Class A-4FL Regular Interest
  Interest                  Pass-Through Rate
Class A-4FL               Class A-4FL Pass-Through Rate
Class A-X:                Class A-X Pass-Through Rate
Class A-SP                Class A-SP Pass-Through Rate
Class A-Y:                Class A-Y Pass-Through Rate
Class A-M:                Class A-M Pass-Through Rate
Class A-J:                Class A-J Pass-Through Rate
Class B:                  Class B Pass-Through Rate
Class C:                  Class C Pass-Through Rate
Class D:                  Class D Pass-Through Rate
Class E:                  Class E Pass-Through Rate
Class F:                  Class F Pass-Through Rate
Class G:                  Class G Pass-Through Rate
Class H:                  Class H Pass-Through Rate
Class J:                  Class J Pass-Through Rate
Class K:                  Class K Pass-Through Rate
Class L:                  Class L Pass-Through Rate
Class M:                  Class M Pass-Through Rate
Class N:                  Class N Pass-Through Rate
Class O:                  Class O Pass-Through Rate
Class P:                  Class P Pass-Through Rate
Class Q:                  Class Q Pass-Through Rate
Class S:                  Class S Pass-Through Rate

            "PCAOB": The Public Company Accounting Oversight Board.

            "Penalty Charges": With respect to any Loan, Junior Loan or REO
Loan, any amounts actually collected thereon from the Borrower that represent
late payment charges or Default Interest.

            "Percentage Interest": As to any Certificate, the percentage
interest evidenced thereby in distributions required to be made with respect to
the related Class. With respect to any Regular Certificate, the percentage
interest equal to the denomination of such Certificate, as set forth on the face
thereof, divided by the initial Class Principal Balance (or, in the case of a
Class of Interest-Only Certificates, the Class Notional Amount) of such Class of
Certificates as of the Closing Date. With respect to a Class V or Class R
Certificate, the percentage interest as set forth on the face thereof.

            "Performance Certification": As defined in Section 11.08.

            "Performing Party": As defined in Section 11.14.

            "Permitted Investments": Any one or more of the following
obligations or securities, regardless whether issued by the Depositor, a Master
Servicer, a Special Servicer, the Trustee, the Certificate Administrator or any
of their respective Affiliates and having the required ratings, if any, provided
for in this definition:

            (i) direct obligations of, and obligations fully guaranteed as to
      timely payment of principal and interest by, the United States of America,
      FNMA, FHLMC or any agency or instrumentality of the United States of
      America, provided such obligations have a remaining term to maturity of
      one year or less from the date of acquisition and which are backed by the
      full faith and credit of the United States of America; provided that any
      obligation of, or guarantee by, FNMA or FHLMC, other than an unsecured
      senior debt obligation of FNMA or FHLMC, shall be a Permitted Investment
      only if such investment would not result in the downgrading, withdrawal or
      qualification of then-current rating assigned by each Rating Agency to any
      Certificate as confirmed in writing;

            (ii) time deposits, unsecured certificates of deposit or bankers'
      acceptances that mature in one year or less after the date of issuance and
      are issued or held by any depository institution or trust company
      incorporated or organized under the laws of the United States of America
      or any State thereof and subject to supervision and examination by federal
      or state banking authorities, so long as the commercial paper or other
      short-term debt obligations of such depository institution or trust
      company are rated in the highest short-term debt rating category of each
      Rating Agency or such other ratings as will not result in the downgrading,
      withdrawal or qualification of then-current rating assigned by each Rating
      Agency to any Certificate, as confirmed in writing by such Rating Agency;

            (iii) repurchase agreements or obligations with respect to any
      security described in clause (i) above where such security has a remaining
      maturity of one year or less and where such repurchase obligation has been
      entered into with a depository institution or trust company (acting as
      principal) described in clause (ii) above;

            (iv) debt obligations maturing in one year or less from the date of
      acquisition bearing interest or sold at a discount issued by any
      corporation incorporated under the laws of the United States of America or
      any state thereof, which securities have (i) ratings in the highest
      long-term unsecured debt rating category of each Rating Agency or (ii)
      such other ratings (as confirmed by the applicable Rating Agency in
      writing) as will not result in a downgrade, qualification or withdrawal of
      then-current rating of the Certificates that are currently being rated by
      such Rating Agency; provided, however, that securities issued by any
      particular corporation will not be Permitted Investments to the extent
      that investment therein will cause the then outstanding principal amount
      of securities issued by such corporation and held in the accounts
      established hereunder to exceed 10% of the sum of the aggregate principal
      balance and the aggregate principal amount of all Permitted Investments in
      such accounts;

            (v) commercial paper (including both non-interest-bearing discount
      obligations and interest-bearing obligations) payable on demand or on a
      specified date maturing in one year or less after the date of issuance
      thereof and which is rated in the highest short-term unsecured debt rating
      category of each Rating Agency;

            (vi) units of investment funds that maintain a constant net asset
      value and money market funds having the highest rating from each Rating
      Agency for money market funds; and

            (vii) any other demand, money market or time deposit, obligation,
      security or investment, with respect to which each Rating Agency shall
      have confirmed in writing that such investment will not result in a
      downgrade, qualification or withdrawal of then-current rating of the
      Certificates that are currently being rated by such Rating Agency;

provided that such instrument or security qualifies as a "cashflow investment"
pursuant to Section 860G(a)(6) of the Code; interest on any variable rate
instrument shall be tied to a single interest rate index plus a single fixed
spread (if any) and move proportionally with that index; and, if rated by S&P,
the obligation must not have an "r" highlighter affixed to its rating, and must
have a predetermined fixed dollar of principal due at maturity that cannot vary
or change.

            "Permitted Mezzanine Loan Holder": With respect to any Mezzanine
Loan, the related Mortgage Loan Seller, any Institutional Lender/Owner or any
other Mezzanine Loan Holder with respect to which each Rating Agency has
confirmed in writing to the applicable Special Servicer and the Trustee that the
holding of such Mezzanine Loan by such Person would not cause a qualification,
downgrade or withdrawal of any of such Rating Agency's then-current ratings on
the Certificates.

            "Permitted Transferee": Any Transferee of a Class R Certificate
other than a Disqualified Organization, a Non-United States Tax Person or a
foreign permanent establishment or fixed base (each within the meaning of the
applicable income tax treaty) of a United States Tax Person; provided, however,
that if a Transferee is classified as a partnership under the Code, such
Transferee shall only be a Permitted Transferee if all of its direct or indirect
(except through a U.S. corporation) beneficial owners are (and must be under the
applicable partnership agreement) United States Tax Persons and the governing
documents of the Transferee prohibit a transfer of any interest in the
Transferee to any Non-United States Tax Person.

            "Person": Any individual, corporation, partnership, limited
liability company, joint venture, association, joint-stock company, trust,
unincorporated organization or government or any agency or political subdivision
thereof.

            "Plan": Any of those retirement plans and other employee benefit
plans, including individual retirement accounts and annuities, Keogh plans and
collective investment funds and separate accounts in which such plans, accounts
or arrangements are invested, including insurance company general accounts, that
are subject to ERISA or the Code.

            "Prepayment Assumption": With respect to all Loans, the assumption
that all payments required to be made on such Loans according to their
contractual terms (including repayment in full on their respective maturity
dates) are so made; provided that, in the case of ARD Loans, it is further
assumed that such ARD Loans will be fully prepaid on their related Anticipated
Repayment Dates.

            "Prepayment Date": With respect to any Principal Prepayment, the
date on which such Principal Prepayment is to be made.

            "Prepayment Interest Excess": With respect to any Distribution Date,
for each Loan that was subject to a voluntary Principal Prepayment in full or in
part, or as to which Insurance and Condemnation Proceeds were received by a
Master Servicer or Special Servicer for application to such Loan, in each case
after the Due Date in the month of such Distribution Date and on or prior to the
related Determination Date, the amount of interest (net of related Master
Servicing Fees, Primary Servicing Fees and any Broker Strip Interest payable
therefrom) accrued at the Mortgage Rate for such Loan on the amount of such
Principal Prepayment or, insofar as these represent an early collection of
principal, such Insurance and Condemnation Proceeds after the end of the
Mortgage Interest Accrual Period relating to such Due Date and accruing in the
manner set forth in the Loan Documents relating to such Loan, to the extent such
interest is collected by or remitted to the applicable Master Servicer or
Special Servicer.

            "Prepayment Interest Shortfall": With respect to any Distribution
Date, for each Loan that was subject to a voluntary Principal Prepayment in full
or in part, or as to which Insurance and Condemnation Proceeds were received by
a Master Servicer or Special Servicer for application to such Loan, in each case
after the Determination Date in the calendar month preceding such Distribution
Date but prior to the Due Date in the related Due Period, the amount of interest
(net of related Master Servicing Fees, Primary Servicing Fees and any Broker
Strip Interest payable therefrom) that would have accrued at the Mortgage Rate
for such Loan, on the amount of such Principal Prepayment or, insofar as these
represent an early collection of principal, such Insurance and Condemnation
Proceeds during the period commencing on the date as of which such Principal
Prepayment or Insurance and Condemnation Proceeds were applied to the unpaid
principal balance of the subject Loan and ending on (and including) the day
immediately preceding such Due Date. A Prepayment Interest Shortfall in respect
of the 828-850 Madison Avenue Loan shall be a Prepayment Interest Shortfall in
respect of the 828-850 Madison Avenue Loan REMIC Regular Interest.

            "Primary Servicer": Any initial Master Servicer or any other
subservicer specifically identified as a "Primary Servicer" on Exhibit K hereto
or in a Sub-Servicing Agreement dated as of September 1, 2006 between a Master
Servicer and such subservicer, in its capacity as a primary servicer, or any
successors thereto. Notwithstanding any other provision herein to the contrary,
each initial Master Servicer shall be a "Primary Servicer" hereunder with
respect to the Loans for which it acts as a Master Servicer hereunder, and no
Sub-Servicing Agreement shall be required with respect to any such Primary
Servicer.

            "Primary Servicing Agreement": Each of the Sub-Servicing Agreements
dated as of September 1, 2006, by and between a Master Servicer and a Primary
Servicer.

            "Primary Servicing Fee": Any primary servicing fee payable to the
Primary Servicer pursuant to the Primary Servicing Agreement.

            "Principal Distribution Adjustment Amount": As to any Distribution
Date and any Servicing Group, the sum of (i) the amount of any Nonrecoverable
Advance (or interest thereon) that was reimbursed to the applicable Master
Servicer or the Trustee from such Servicing Group and that was deemed to have
been reimbursed out of principal collections that would otherwise constitute
part of the Principal Distribution Amount and (ii) any Workout-Delayed
Reimbursement Amount (or interest thereon) that was reimbursed to the applicable
Master Servicer or the Trustee from such Servicing Group and that was deemed to
have been reimbursed out of principal collections that would otherwise
constitute part of the Principal Distribution Amount, in each case, with
interest on such Advance, during the period since the preceding Distribution
Date.

            "Principal Distribution Amount": As to any Distribution Date (other
than the final Distribution Date), an amount equal to the total, without
duplication, of the following: (i) all payments of principal, including
voluntary Principal Prepayments and the principal portion of any Cure Payments,
received by or on behalf of the Trust with respect to the Loans (but not in
respect of any Junior Loan) during the related Due Period, exclusive of any
portion of those payments that represents a late collection of principal for
which an Advance was previously made for a prior Distribution Date or that
represents the principal portion of a Monthly Payment due on or before the Due
Date for the related Loan in September 2006 or on a due date for the related
Loan subsequent to the end of the related Due Period, (ii) the principal portion
of all Monthly Payments received by or on behalf of the Trust with respect to
the Loans (but not in respect of any Companion Loan or Junior Loan) prior to,
but that are due during, the related Due Period, (iii) all other collections,
including Liquidation Proceeds and Insurance and Condemnation Proceeds, that
were received by or on behalf of the Trust Fund with respect to any of the Loans
(but not in respect of any Companion Loan or Junior Loan) or any related REO
Properties during the related Due Period and that were identified and applied by
the applicable Master Servicer as recoveries of principal of the subject Loan
(but not in respect of any Companion Loan or Junior Loan) or, in the case of an
REO Property, of the related REO Loan (but not an REO Loan in respect of a
predecessor Junior Loan), in each case net of any portion of the particular
collection that represents a late collection of principal for which an Advance
of principal was previously made for a prior Distribution Date or that
represents the principal portion of a Monthly Payment due on or before the Due
Date for the related Loan in September 2006, (iv) all Advances of principal made
with respect to the Mortgage Pool for that Distribution Date, provided that if
any Insurance and Condemnation Proceeds or Liquidation Proceeds were received
and/or a Final Recovery Determination was made with respect to any Loan or REO
Property during the related Due Period, then that portion, if any, of the
aggregate amount described in clause (i) through (iv) above that is specifically
attributable to such Loan or REO Property, shall be reduced to not less than
zero by any Special Servicing Fees or Liquidation Fees previously paid hereunder
with respect to such Loan or REO Property from collections on the Mortgage Pool
other than Penalty Charges collected during the Due Period. For the final
Distribution Date, an amount equal to the total Stated Principal Balance of the
Mortgage Pool outstanding immediately prior to that final Distribution Date.

            Notwithstanding the foregoing, (i) the Principal Distribution Amount
for any Distribution Date for any Loan Group will be reduced by the Principal
Distribution Adjustment Amount for such Loan Group for such Distribution Date;
and (ii) the Principal Distribution Amount for any Loan Group will be increased
by the amount of any recovery occurring during the related Due Period of an
amount that was previously advanced with respect to a Loan, but only if and to
the extent such Advance was previously reimbursed from principal collections
that would otherwise have constituted part of the Principal Distribution Amount
for such Loan Group for a prior Distribution Date in a manner that resulted in a
Principal Distribution Adjustment Amount for such Loan Group for such prior
Distribution Date.

            "Principal Prepayment": Any payment of principal made by the
Borrower on a Loan that is received in advance of its scheduled Due Date and
which is not accompanied by an amount of interest representing scheduled
interest due on any date or dates in any month or months subsequent to the month
of prepayment, other than any amount paid in connection with the release of the
related Mortgaged Property through defeasance.

            "Privileged Person": Each holder of a Certificate, each of the
parties to this Agreement, each of the Rating Agencies, each of the
Underwriters, each Junior Loan Holder, each Companion Loan Holder, any
Certificate Owner or prospective purchaser of a Certificate upon receipt from
such Certificate Owner or prospective purchaser of an investor certification
(which may be in electronic form), the form of which is attached hereto as
Exhibit S, and any other Person designated by the Depositor. The Certificate
Administrator shall (and a Master Servicer may) provide all Privileged Persons
with access to certain restricted information on its Website (in the case of any
Certificate Owner or prospective purchaser, upon receipt of such investor
certification) through the use of a restricted mechanism on its Website.

            "Prohibited Party": Any party that (i) is listed on the Depositor's
Do Not Hire List or (ii) is a proposed Servicing Function Participant for which
the applicable Master Servicer, Special Servicer or Trustee that seeks to retain
such Servicing Function Participant has actual knowledge that such party at any
point prior to such hiring, assignment or transfer failed to comply in all
material respects with the Servicing Function Participant's obligations under
Regulation AB with respect to any other securitization.

            "Projected Debt Service Coverage Ratio": With respect to any Co-op
Loan, as of any date of determination, the Projected Net Cash Flow for the
related Mortgaged Property on an annualized basis, divided by the annualized
Monthly Payments for such Co-op Loan.

            "Projected Net Cash Flow": With respect to any Mortgaged Property
that is a residential cooperative property, projected net operating income at
such Mortgaged Property, as set forth in the Appraisal obtained with respect to
such Mortgaged Property in connection with the origination of the related Co-op
Loan (or an updated Appraisal, if required hereunder), assuming such Mortgaged
Property was operated as a rental property with rents set at prevailing market
rates taking into account the presence of existing rent controlled or rent
stabilized occupants, reduced by underwritten capital expenditures, property
operating expenses, a market-rate vacancy assumption and projected reserves.

            "Prospectus": The Prospectus dated September 8, 2006, as
supplemented by the Prospectus Supplement.

            "Prospectus Supplement": The Prospectus Supplement dated September
21, 2006, relating to the offering of the Public Certificates.

            "PTCE": A prohibited transaction class exemption, as issued by the
United States Department of Labor.

            "PTE": A prohibited transaction exemption, as issued by the United
States Department of Labor.

            "Purchase Price": With respect to any Loan to be purchased (a) by or
on behalf of a Responsible Party pursuant to or as contemplated by Section 7 of
the related Mortgage Loan Purchase Agreement, (b) by the Directing
Certificateholder pursuant to Section 3.18(b), a Special Servicer pursuant to
Section 3.18(c), or an assignee of either thereof, in any case, pending
determination of Fair Value, (c) with respect to any Loan Combination, if the
related Intercreditor Agreement so provides for a purchase option, by any Junior
Loan Holder or Companion Loan Holder, or (d) by the holders of more than 50% of
the Percentage Interests in the Controlling Class, a Special Servicer or a
Master Servicer pursuant to Section 9.01, a price equal to the sum of the
following:

            (i) the outstanding principal balance of such Loan as of the date of
      purchase (and, if the Loan that is being purchased is part of a Loan
      Combination and the related Companion Loan Holder or Junior Loan Holder
      has previously made a Cure Payment, the outstanding principal balance as
      reduced by the principal portion of such Cure Payment);

            (ii) all accrued and unpaid interest on such Loan at the related
      Mortgage Rate in effect from time to time to but not including the Due
      Date in the Due Period of purchase (which includes unpaid Master Servicing
      Fees and Primary Servicing Fees) and all related Special Servicing Fees;

            (iii) all related unreimbursed Servicing Advances (and any related
      Servicing Advances reimbursed by the Trust Fund out of general collections
      on the Mortgage Pool) plus accrued and unpaid interest on related Advances
      at the Reimbursement Rate;

            (iv) if such Loan is being repurchased by or on behalf of a
      Responsible Party pursuant to or as contemplated by Section 7 of the
      related Mortgage Loan Purchase Agreement following the expiration of the
      applicable cure period (as it may be extended), the amount of the
      Liquidation Fee payable to the Special Servicer;

            (v) if such Loan is being purchased by a Junior Loan Holder or
      Companion Loan Holder pursuant to the related Intercreditor Agreement
      following 60 days from the related Loan becoming a Specially Serviced
      Loan, the amount of the Liquidation Fee payable to the Special Servicer,
      provided that no liquidation fee will be payable to any special servicer
      in connection with the purchase of the 3434 North Washington Boulevard
      Loan by the Junior Holder in accordance with the related Intercreditor
      Agreement; and

            (vi) if such Loan is being purchased by or on behalf of a
      Responsible Party pursuant to or as contemplated by Section 7 of the
      related Mortgage Loan Purchase Agreement, all reasonable out-of-pocket
      expenses reasonably incurred (whether paid or then owing) by the
      applicable Master Servicer, the applicable Special Servicer, the Depositor
      and the Trustee in respect of the Breach, Defect or defeasance giving rise
      to the repurchase obligation, including any expenses arising out of the
      enforcement of the repurchase obligation and, without duplication of any
      amounts described above in this definition, any Trust Fund expenses
      incurred prior to such purchase date with respect to such Loan and/or (if
      applicable) its related Companion Loan or Junior Loan.

            With respect to any Defaulted Loan to be purchased by the Directing
Certificateholder (or any assignee thereof) or a Special Servicer pursuant to
Section 3.18(b) or 3.18(c) following determination of Fair Value, the Purchase
Price will equal the Fair Value of such Defaulted Loan. With respect to any REO
Property to be sold pursuant to Section 3.18(e), the amount calculated in
accordance with the second preceding sentence of this definition in respect of
the related REO Loan(s).

            With respect to the Ritz Carlton Mortgage Loan, the Purchase Price
for each applicable Mortgage Loan Seller will be its respective percentage
interest of the total Purchase Price for the Ritz Carlton Mortgage Loan. The
percentage interest with respect to the Ritz Carlton Mortgage Loan shall be 50%
for BCRE and 50% for Column.

            "Qualified Appraiser": In connection with the appraisal of any
Mortgaged Property or REO Property, an Independent MAI-designated appraiser with
at least five years of experience in respect of the relevant geographic location
and property type.

            "Qualified Institutional Buyer" or "QIB": A "qualified institutional
buyer" within the meaning of Rule 144A under the Securities Act.

            "Qualified Insurer": (i) With respect to any Loan, Companion Loan,
Junior Loan, REO Loan or REO Property, an insurance company or security or
bonding company qualified to write the related Insurance Policy in the relevant
jurisdiction and a minimum claims paying ability rating of at least "A-" by
Fitch (if then rated by Fitch), "A-" by S&P and "A3" by Moody's, (ii) with
respect to the fidelity bond and errors and omissions Insurance Policy required
to be maintained pursuant to Section 3.07(c), an insurance company that has a
claims paying ability rated no lower than two ratings below the rating assigned
to then highest rated outstanding Certificate, but in no event lower than "A-3"
by Moody's (if then rated by Moody's), "A-" by Fitch (if then rated by Fitch)
and "A-" by S&P or, in the case of clauses (i) and (ii), such other rating as
each such Rating Agency shall have confirmed in writing will not cause such
Rating Agency to downgrade, qualify or withdraw any then-current rating assigned
to any of the Certificates that are then- currently being rated by such Rating
Agency (or insofar as there is then outstanding any class of Companion Loan
Securities that is then rated by such Rating Agency, such class of securities).

            "Qualified Substitute Mortgage Loan": A mortgage loan which must, on
the date of substitution: (i) have an outstanding principal balance, after
application of all scheduled payments of principal and interest due during or
prior to the month of substitution, not in excess of the Stated Principal
Balance of the deleted Loan as of the Due Date in the calendar month during
which the substitution occurs; (ii) have a Mortgage Rate not less than the
Mortgage Rate of the deleted Loan; (iii) have the same Due Date as the deleted
Loan; (iv) accrue interest on the same basis as the deleted Loan (for example,
on the basis of a 360-day year and the actual number of days elapsed); (v) have
a remaining term to stated maturity not greater than, and not more than two
years less than, the remaining term to stated maturity of the deleted Loan; (vi)
have an original Loan-to-Value Ratio not higher than that of the deleted Loan
and a current Loan-to-Value Ratio not higher than the then current Loan-to-Value
Ratio of the deleted Loan; (vii) materially comply as of the date of
substitution with all of the representations and warranties set forth in the
applicable Mortgage Loan Purchase Agreement; (viii) have an Environmental
Assessment that indicates no material adverse environmental conditions with
respect to the related Mortgaged Property and which will be delivered as a part
of the related Mortgage File; (ix) have an original Debt Service Coverage Ratio
of not less than the original Debt Service Coverage Ratio of the deleted Loan
and a current Debt Service Coverage Ratio of not less than the current Debt
Service Coverage Ratio of the deleted Loan (provided that, with respect to Co-op
Loans and any related replacement Loans, such Debt Service Coverage Ratios shall
mean Projected Debt Service Coverage Ratio); (x) be determined by an Opinion of
Counsel (at the applicable Responsible Party's expense) to be a "qualified
replacement mortgage" within the meaning of Section 860G(a)(4) of the Code; (xi)
not have a maturity date after the date two years prior to the Rated Final
Distribution Date; (xii) not be substituted for a deleted Loan unless the
Trustee has received prior confirmation in writing by each Rating Agency that
such substitution will not result in the withdrawal, downgrade, or qualification
of the rating assigned by the Rating Agency to any Class of Certificates then
rated by the Rating Agency (the cost, if any, of obtaining such confirmation to
be paid by the applicable Responsible Party); (xiii) have been approved by the
Directing Certificateholder in its sole discretion; (xiv) prohibit defeasance
within two years after the Closing Date; (xv) not be substituted for a deleted
Loan if it would result in the termination of the REMIC status of any Trust
REMIC established under this Agreement or the imposition of tax on any such
Trust REMIC other than a tax on income expressly permitted or contemplated to be
received by the terms of this Agreement, as determined by an Opinion of Counsel
and (xvi) be secured by a residential cooperative property if it is replacing a
Co-op Loan. In the event that one or more mortgage loans are substituted for one
or more deleted Loans, then the amounts described in clause (i) shall be
determined on the basis of aggregate principal balances and the rates described
in clause (ii) above (provided that no Net Mortgage Rate shall be less than the
Pass-Through Rate of any Class of Sequential Pay Certificates then outstanding)
and the remaining term to stated maturity referred to in clause (v) above shall
be determined on a weighted average basis. When a Qualified Substitute Mortgage
Loan is substituted for a deleted Loan, the applicable Responsible Party shall
certify that such mortgage loan meets all of the requirements of the above
definition and shall send such certification to the Trustee. Any Qualified
Substitute Mortgage Loan substituted for the 828-850 Madison Avenue Loan shall
be an asset solely of the 828-850 Madison Avenue Loan REMIC.

            "Rated Final Distribution Date": As to each Class of Sequential Pay
Certificates, other than the Class S Certificates, the Distribution Date
occurring in September 2039.

            "Rating Agency": Each of Moody's, S&P and Fitch, or their successors
in interest. If any of such rating agencies or any successor thereto ceases to
remain in existence, "Rating Agency" shall be deemed to refer to any other
NRSRO, or other comparable Person, designated by the Depositor to replace the
rating agency that has ceased to exist. Notice of such designation shall be
given to the Trustee and the Master Servicer, and the specific ratings of
Moody's, Fitch and S&P herein referenced shall be deemed to refer to the
equivalent ratings of the party so designated; provided, however, that if such
designated party has not then assigned a rating to a depository institution,
insurer or any other Person or item, then any failure to satisfy a requirement
under this Agreement to meet or maintain such equivalent rating shall not be
deemed an Event of Default or breach of the Servicing Standard solely as a
result of such failure.

            "Record Date": With respect to any Distribution Date, the last
Business Day of the month immediately preceding the month in which such
Distribution Date occurs.

            "Reference Rate": With respect to any Distribution Date from and
including the October 2006 Distribution Date to and including the September 2013
Distribution Date, the corresponding rate per annum set forth on Exhibit N
hereto.

            "Registered Certificate": Any Certificate that has been subject to
registration under the Securities Act. As of the Closing Date, the Class A-1,
Class A-1-A, Class A-2, Class A-AB, Class A-3, Class A-4FL, Class A-M and Class
A-J Certificates constitute Registered Certificates.

            "Registrar Office": As defined in Section 5.02(a).

            "Regular Certificate": Any Sequential Pay Certificate or
Interest-Only Certificate.

            "Regulation AB": Subpart 229.1100 - Asset Backed Securities
(Regulation AB), 17 C.F.R. ss.ss. 229.1100-229.1123, as such may be amended from
time to time, and subject to such clarification and interpretation as have been
provided by the Commission in the adopting release (Asset-Backed Securities,
Securities Act Release No. 33-8518, 70 Fed. Reg. 1,506, 1,531 (Jan. 7, 2005)) or
by the staff of the Commission, or as may be provided by the Commission or its
staff from time to time.

            "Regulation AB Companion Loan Securitization": As defined in Section
11.15.

            "Regulation S": Regulation S under the Securities Act.

            "Regulation S Global Certificate": With respect to any Class of
Book-Entry Non-Registered Certificates offered and sold outside of the United
States in reliance on Regulation S, a single global Certificate, or multiple
global Certificates collectively, in definitive, fully registered form without
interest coupon, each of which Certificates bears a Regulation S Legend.

            "Regulation S Legend": With respect to any Class of Book-Entry
Non-Registered Certificates offered and sold outside the United States in
reliance on Regulation S, a legend generally to the effect that such
Certificates may not be offered, sold, pledged or otherwise transferred in the
United States or to a United States Securities Person prior to the Release Date
except pursuant to an exemption from the registration requirements of the
Securities Act.

            "Reimbursement Rate": The rate per annum applicable to the accrual
of interest on Servicing Advances in accordance with Section 3.03(d) and P&I
Advances in accordance with Section 4.03(d), which rate per annum shall equal
the "Prime Rate" published in the "Money Rates" Section of The Wall Street
Journal (or, if such Section or publication is no longer available, such other
comparable publication as is determined by the Trustee in its sole discretion)
as may be in effect from time to time, or, if the "Prime Rate" no longer exists,
such other comparable rate (as determined by the Trustee in its reasonable
discretion) as may be in effect from time to time.

            "Release Date": With respect to any Class of Non-Registered
Certificates (other than the Class R and Class V Certificates), the date that is
40 days following the later of (i) the commencement of the offering of such
Non-Registered Certificates to Persons other than distributors in reliance upon
Regulation S under the Securities Act and (ii) the date of closing of such
offering.

            "Relevant Servicing Criteria": The Servicing Criteria applicable to
each Reporting Servicer (as set forth, with respect to each Master Servicer,
each Special Servicer and the Trustee, on Exhibit U attached hereto). For
clarification purposes, multiple Reporting Servicers can have responsibility for
the same Relevant Servicing Criteria and some of the Servicing Criteria will not
be applicable to certain Reporting Servicers. With respect to a Servicing
Function Participant engaged by the Trustee, a Master Servicer or a Special
Servicer, the term "Relevant Servicing Criteria" refers to the items of the
Relevant Servicing Criteria applicable to the Trustee, the Master Servicer or
the Special Servicer that engaged such Servicing Function Participant that are
applicable to such Servicing Function Participant based on the functions it has
been engaged to perform.

            "Remaining Principal Distribution Amount": As to any Distribution
Date and any Class of Sequential Pay Certificates (exclusive of the Class A
Sequential Pay Certificates), the amount, if any, by which the Principal
Distribution Amount for such Distribution Date exceeds the aggregate amount
distributed in respect of principal on such Distribution Date to all Classes of
Sequential Pay Certificates (including the Class A Sequential Pay Certificates)
senior to the subject Class.

            "REMIC": A "real estate mortgage investment conduit" as defined in
Section 860D of the Code (or any successor thereto).

            "REMIC Declaration": The declaration establishing the 828-850
Madison Avenue Loan REMIC described in the Preliminary Statement.

            "REMIC Provisions": Provisions of the federal income tax law
relating to real estate mortgage investment conduits, which appear at Sections
860A through 860G of Subchapter M of Chapter 1 of Subtitle A of the Code, and
related provisions, and temporary and final regulations and, to the extent not
inconsistent with such temporary and final regulations, proposed regulations,
and published rulings, notices and announcements promulgated thereunder, as the
foregoing may be in effect from time to time.

            "Rents from Real Property": With respect to any REO Property, gross
income of the character described in Section 856(d) of the Code.

            "REO Account": A segregated custodial account or accounts created
and maintained by a Special Servicer pursuant to Section 3.16 on behalf of the
Trustee in trust for the Certificateholders and any related Junior Loan
Holder(s) or Companion Loan Holders, which shall be entitled "[name of Special
Servicer], as Special Servicer, in trust for [name of Trustee], as Trustee, for
Holders of Credit Suisse First Boston Mortgage Securities Corp. Commercial
Mortgage Pass-Through Certificates and any related Junior Loan Holder(s) or
Companion Loan Holder, as their interests may appear, Series 2006-C4, REO
Account." Any such account or accounts shall be an Eligible Account.

            "REO Acquisition": With respect to any Loan, the acquisition by the
Trust Fund of REO Property related to such Loan.

            "REO Acquisition Date": With respect to any REO Property, the first
day on which such REO Property is acquired by the Trust Fund and the Lower-Tier
REMIC, or with respect to the 828-850 Madison Avenue Loan, the 828-850 Madison
Avenue Loan REMIC, respectively, within the meaning of Treasury Regulations
Section 1.856-6(b)(1), which is the first day on which the Lower-Tier REMIC or
the 828-850 Madison Avenue Loan REMIC, as applicable, is treated as the owner of
such REO Property (or any interest therein) for federal income tax purposes.

            "REO Disposition": The sale or other disposition of the REO Property
pursuant to Section 3.18(e).

            "REO Extension": As defined in Section 3.16(a).

            "REO Loan": Any Loan, Companion Loan or Junior Loan deemed to be
outstanding with respect to each REO Property. Each REO Loan shall be deemed to
be outstanding for so long as the related REO Property remains part of the Trust
Fund, and shall be deemed to provide for Assumed Scheduled Payments on each Due
Date therefor and otherwise have the same terms and conditions as its
predecessor Loan, Companion Loan or Junior Loan, as the case may be, including,
without limitation, with respect to the calculation of the Mortgage Rate in
effect from time to time (such terms and conditions to be applied without regard
to the default on such predecessor Loan, Companion Loan or Junior Loan, as the
case may be). Each REO Loan shall be deemed to have an initial outstanding
principal balance and, if applicable, Stated Principal Balance equal to the
outstanding principal balance and, if applicable, Stated Principal Balance,
respectively, of its predecessor Loan, Companion Loan or Junior Loan, as
applicable, as of the related REO Acquisition Date. All amounts due and owing in
respect of the predecessor Loan or Junior Loan, as applicable, as of the related
REO Acquisition Date, including, without limitation, accrued and unpaid
interest, shall continue to be due and owing in respect of an REO Loan. All
amounts payable or reimbursable to any Master Servicer, any Special Servicer or
the Trustee, as applicable, in respect of the predecessor Loan, Companion Loan
or Junior Loan as of the related REO Acquisition Date, including, without
limitation, any unpaid Special Servicing Fees and Master Servicing Fees and any
unreimbursed Advances, together with any interest accrued and payable to the
applicable Master Servicer or the Trustee in respect of such Advances in
accordance with Section 3.03(d) or Section 4.03(d), shall continue to be payable
or reimbursable to the relevant party hereunder in respect of an REO Loan. In
addition, Workout-Delayed Reimbursement Amounts and Nonrecoverable Advances with
respect to an REO Loan (including interest accrued thereon), in each case, that
were paid from general collections on the Mortgage Pool and resulted in
principal distributed to the Certificateholders being reduced shall be deemed
outstanding until recovered. Collections in respect of each REO Loan (exclusive
of amounts to be applied to the payment of, or to be reimbursed to a Master
Servicer or Special Servicer for the payment of, the costs of operating,
managing and maintaining the related REO Property) shall be treated: first, as a
recovery of accrued and unpaid Advances, Nonrecoverable Advances and
Workout-Delayed Reimbursement Amounts with respect to such REO Loan (in the case
of Nonrecoverable Advances and Workout-Delayed Reimbursement Amounts, that were
paid from general collections of principal on the Mortgage Pool and resulted in
principal distributed to the Certificateholders being reduced), Primary
Servicing Fees and Master Servicing Fees and related interest due the applicable
Master Servicer or the Trustee; second, as a recovery of any remaining accrued
and unpaid interest on such REO Loan at the related Net Mortgage Rate to but not
including the Due Date in the Due Period of receipt; third, as a recovery of
principal of such REO Loan to the extent of its entire unpaid principal balance;
and fourth, in accordance with the Servicing Standard of the Master Servicer, as
a recovery of any other amounts due and owing in respect of such REO Loan,
including, without limitation, prepayment consideration and Penalty Charges,
provided that if the 280 Park Avenue Total Loan and its related Companion Loan
become REO Loans, the treatment of the foregoing amounts with respect to the 280
Park Avenue Total Loan and its related Companion Loan, shall be subject to the
terms of the applicable Intercreditor Agreement and this Agreement.

            "REO Property": A Mortgaged Property acquired on behalf and in the
name of the Trustee for the benefit of the Certificateholders (or, in the case
of a Mortgaged Property securing the 828-850 Madison Avenue Total Loan, the 3434
North Washington Boulevard Total Loan, the 500 Sansome Office Total Loan, the
280 Park Avenue Total Loan or any CBA A/B Loan Pair, for the benefit of the
Certificateholders, the Companion Loan Holder(s) and the Junior Loan Holder(s),
as their interests may appear), through foreclosure, acceptance of a
deed-in-lieu of foreclosure or otherwise in accordance with applicable law in
connection with the default or imminent default of a Loan or a Loan Combination.

            "REO Revenues": All income, rents and profits derived from the
ownership, operation or leasing of any REO Property.

            "Reportable Event": As defined in Section 11.09.

            "Reporting Servicer": The Master Servicers, the Special Servicers,
the Trustee and any Servicing Function Participant, as the case may be.

            "Repurchased Note": As defined in Section 3.34.

            "Repurchasing Seller": As defined in Section 3.34.

            "Request for Release": A release signed by a Servicing Officer of a
Master Servicer or a Special Servicer, as applicable, in the form of Exhibit D
attached hereto.

            "Requesting Subordinate Certificateholder": The Holder of any of the
Class L, Class M, Class N, Class O, Class P, Class Q or Class S Certificates,
that delivers notice to the Trustee, the Master Servicers and the Special
Servicers indicating that such Holder is a "Requesting Subordinate
Certificateholder."

            "Responsible Officer": (i) Any officer of the Global Securities and
Trust Services group of the Certificate Administrator (and, in the event that
the Certificate Administrator is the Certificate Registrar or the Paying Agent,
of the Certificate Registrar or the Paying Agent, as applicable) and (ii) when
used with respect to the initial Trustee, any Vice President, Assistant Vice
President or trust officer of the Trustee having direct responsibility for the
administration of this Agreement, and with respect to any successor Trustee, any
officer or assistant officer in the corporate trust department of the Trustee or
any other officer of the Trustee customarily performing functions similar to
those performed by any of the above designated officers to whom a particular
matter is referred by the Trustee because of such officer's knowledge of and
familiarity with the particular subject.

            "Responsible Party": As to the specified Loans, the indicated party:
(a) in the case of the CSMC Loans, the CSMC Mortgage Loan Seller; (b) in the
case of the LaSalle Loans, the LaSalle Mortgage Loan Seller; (c) in the case of
the KeyBank Loans, the KeyBank Mortgage Loan Seller; (d) in the case of the BCRE
Loan, the BCRE Mortgage Loan Seller; and (e) in the case of the NCB, FSB Loans,
the NCB, FSB Mortgage Loan Seller; provided that, insofar as the obligations of
the CSMC Mortgage Loan Seller under Section 7 of the CSMC Mortgage Loan Purchase
Agreement are guaranteed by the Column Performance Guarantor, then the term
"Responsible Party" shall, as to the CSMC Loans, mean the CSMC Mortgage Loan
Seller and the Column Performance Guarantor, individually and collectively, as
the context may require.

            "Restricted Master Servicer Reports": Collectively, to the extent
not filed with the Commission, the CMSA Comparative Financial Status Report, the
CMSA Servicer Watch List, the CMSA Operating Statement Analysis Report, the CMSA
Financial File, the Asset Status Report and CMSA NOI Adjustment Worksheet.

            "Revised Rate": With respect to the ARD Loans, the increased
interest rate after the Anticipated Repayment Date (in the absence of a default)
for each applicable ARD Loan, as calculated and as set forth in the related ARD
Loan.

            "Ritz Carlton Mortgage Loan": The Loan identified as Loan No. 4 on
the Mortgage Loan Schedule.

            "Rule 144A Global Certificate": With respect to any Class of
Book-Entry Non-Registered Certificates, a single global Certificate, or multiple
global Certificates collectively, registered in the name of the Depository or
its nominee, in definitive, fully registered form without interest coupons, each
of which Certificates bears a Qualified Institutional Buyer CUSIP number and
does not bear a Regulation S Legend.

            "S&P": Standard & Poor's Ratings Services, a division of The
McGraw-Hill Companies, Inc., and its successors in interest. If neither such
rating agency nor any successor remains in existence, "S&P" shall be deemed to
refer to such other nationally recognized statistical rating agency or other
comparable Person designated by the Depositor, notice of which designation shall
be given to the other parties hereto, and specific ratings of Standard & Poor's
Ratings Services, a division of The McGraw-Hill Companies, Inc. herein
referenced shall be deemed to refer to the equivalent ratings of the party so
designated; provided, however, that if such designated party has not then
assigned a rating to a depository institution, insurer or any other Person or
item, then any failure to satisfy a requirement under this Agreement to meet or
maintain such equivalent rating shall not be deemed an Event of Default or
breach of the Servicing Standard solely as a result of such failure. References
herein to "applicable rating category" (other than such references to "highest
applicable rating category") shall, in the case of S&P, be deemed to refer to
such applicable rating category of S&P, without regard to any plus or minus or
other comparable rating qualification.

            "Sarbanes-Oxley Act": The Sarbanes-Oxley Act of 2002 and the rules
and regulations of the Commission promulgated thereunder (including any
interpretations thereof by the Commission's staff).

            "Sarbanes-Oxley Certification": As defined in Section 11.08.

            "Securities Act": The Securities Act of 1933, as amended and the
rules and regulations thereunder.

            "Security Agreement": With respect to any Loan or Junior Loan, any
security agreement or equivalent instrument, whether contained in the related
Mortgage or executed separately, creating in favor of the holder of such
Mortgage a security interest in the personal property constituting security for
repayment of such Loan or Junior Loan, as the case may be.

            "Security Position Listing": A listing prepared by the Depository of
the holdings of Depository Participants with respect to the Certificates.

            "Senior Principal Distribution Cross-Over Date": The first
Distribution Date as of which the aggregate of the Class Principal Balances of
the Class A-1, Class A-2, Class A-AB, Class A-3 and Class A-1-A Certificates and
the Class A-4FL Regular Interest outstanding immediately prior thereto equals or
exceeds the sum of (a) the aggregate Stated Principal Balance of the Mortgage
Pool that will be outstanding immediately following such Distribution Date, plus
(b) the lesser of (i) the Principal Distribution Amount for such Distribution
Date and (ii) the portion of the Available Distribution Amount for such
Distribution Date that will remain after all distributions of interest to be
made on the Class A-X, Class A-SP, Class A-Y, Class A-1, Class A-2, Class A-AB,
Class A-3 and Class A-1-A Certificates and the Class A-4FL Regular Interest on
such Distribution Date pursuant to Section 4.01(a) have been so made.

            "Sequential Pay Certificates": Any of the Class A-1, Class A-1-A,
Class A-2, Class A-AB, Class A-3, Class A-4FL, Class A-M, Class A-J, Class B,
Class C, Class D, Class E, Class F, Class G, Class H, Class J, Class K, Class L,
Class M, Class N, Class O, Class P, Class Q or Class S Certificates.

            "Serviced Loan Combinations": The 3434 North Washington Boulevard
Total Loan, the 828-850 Madison Avenue Total Loan, the 500 Sansome Office Total
Loan, the 280 Park Avenue Total Loan and, with respect to each CBA A/B Loan
Pair, upon a "Material Default" under the related CBA A/B Intercreditor
Agreement, such CBA A/B Loan Pair, collectively.

            "Servicer": As defined in Section 11.03.

            "Service(s)(ing)": In accordance with Regulation AB, the act of
servicing and administering the Loans or any other assets of the Trust by an
entity that meets the definition of "servicer' set forth in Item 1101 of
Regulation AB and is subject to the disclosure requirements set forth in 1108 of
Regulation AB. For clarification purposes, any uncapitalized occurrence of this
term shall have the meaning commonly understood by participants in the
commercial mortgage-backed securitization market.

            "Servicing Account": The account or accounts created and maintained
pursuant to Section 3.03.

            "Servicing Advances": All customary, reasonable and necessary
"out-of-pocket" costs and expenses, including attorneys' fees and expenses and
fees of real estate brokers, paid or to be paid, as the context requires, out of
its own funds, by a Master Servicer or Special Servicer (or, if applicable, the
Trustee) in connection with the servicing of a Loan and/or (if applicable) the
related Companion Loan and Junior Loan(s), after a default, delinquency or other
unanticipated event has occurred or is reasonably foreseeable, or in connection
with the administration of any REO Property, including (1) any such costs and
expenses associated with (a) compliance with the obligations of a Master
Servicer and/or Special Servicer set forth in Sections 2.03, 3.03(c) and 3.09,
(b) the preservation, insurance, restoration, protection and management of a
Mortgaged Property, including the cost of any "force placed" insurance policy
purchased by a Master Servicer or Special Servicer to the extent such cost is
allocable to a particular Mortgaged Property that such Master Servicer or
Special Servicer is required to cause to be insured pursuant to Section 3.07,
(c) obtaining any Insurance and Condemnation Proceeds or Liquidation Proceeds in
respect of any such Loan, Companion Loan, Junior Loan or any REO Property, (d)
any enforcement or judicial proceedings with respect to any such Loan and/or (if
applicable) the related Companion Loan or Junior Loan(s), including foreclosures
and similar proceedings, (e) the operation, leasing, management, maintenance and
liquidation of any REO Property, (f) obtaining any Appraisal or environmental
report required to be obtained hereunder, and (g) UCC filings (to the extent
that the costs thereof are not reimbursed by the related Borrower), (2) the
reasonable and direct out-of-pocket travel expenses incurred by a Special
Servicer in connection with performing inspections pursuant to Section 3.19, and
(3) any other expenditure which is expressly designated as a Servicing Advance
herein.

            "Servicing Criteria": The criteria set forth in paragraph (d) of
Item 1122 of Regulation AB as such may be amended from time to time.

            "Servicing Fee": With respect to any Loan, 3434 North Washington
Boulevard Junior Loan, 500 Sansome Office Junior Loan or 828-850 Madison Avenue
Junior Loan (and any successor REO Loan with respect to any of the foregoing),
any related Master Servicing Fee and related Primary Servicing Fee, together.

            "Servicing Fee Rate": With respect to any Loan, 3434 North
Washington Boulevard Junior Loan, 500 Sansome Office Junior Loan or 828-850
Madison Avenue Junior Loan (and any successor REO Loan with respect to any of
the foregoing), the sum of any related Master Servicing Fee Rate and any related
Primary Servicing Fee Rate.

            "Servicing File": Any documents, certificates, opinions and reports
(other than documents required to be part of the related Mortgage File)
delivered by the related Borrower in connection with or relating to the
origination and servicing of any Loan, Companion Loan or Junior Loan or which
are reasonably required for the ongoing administration of such Loan, Companion
Loan or Junior Loan, as the case may be, including appraisals, surveys,
engineering reports, environmental reports, financial statements, leases, rent
rolls and tenant estoppels, but excluding any other documents and writings that
have been prepared by the related Mortgage Loan Seller or any of its Affiliates
solely for internal credit analysis or other internal uses or any
attorney-client privileged communication, together with copies of documents
required to be part of the related Mortgage File.

            With respect to the Ritz Carlton Mortgage Loan, the delivery of the
Servicing File by either BCRE or Column shall satisfy the delivery requirements
for both BCRE and Column.

            "Servicing Function Participant": Any Person, other than the Master
Servicers, the Special Servicers and the Trustee, that is, within the meaning of
Item 1122 of Regulation AB, performing activities that address the Servicing
Criteria, unless such Person's activities relate only to 5% or less of the Loans
(calculated by Stated Principal Balance).

            "Servicing Group": Servicing Group A or Servicing Group B, as
applicable.

            "Servicing Group A": Collectively, all of the Loans that are Group A
Loans and any successor REO Loans with respect thereto.

            "Servicing Group B": Collectively, all of the Loans that are Group B
Loans and any successor REO Loans with respect thereto.

            "Servicing Officer": Any officer and/or employee of a Master
Servicer or Special Servicer involved in, or responsible for, the administration
and servicing of Loans (and if applicable, the related Junior Loans and
Companion Loan), whose name and specimen signature appear on a list of servicing
officers furnished by such Master Servicer or Special Servicer, as the case may
be, to the Trustee, the Certificate Administrator and the Depositor on the
Closing Date as such list may be amended from time to time thereafter.

            "Servicing Standard": As defined in Section 3.01(a).

            "Servicing Transfer Event": With respect to any Loan, Companion Loan
or Junior Loan, as applicable, the occurrence of any of the following events:

            (i) a payment default shall have occurred on such Loan, Companion
      Loan or Junior Loan, as the case may be, at its Maturity Date (except, if
      (a) the Borrower is making its Assumed Scheduled Payment, (b) the Borrower
      notifies the Master Servicer of its intent to refinance such Loan,
      Companion Loan or Junior Loan, as the case may be, and is diligently
      pursuing such refinancing, (c) the Borrower delivers a firm commitment to
      refinance acceptable to the applicable Special Servicer, with the consent
      of the Directing Certificateholder within 45 days after the Maturity Date,
      and (d) such refinancing occurs within 60 days of such default, which
      60-day period may be extended to 120 days at the applicable Special
      Servicer's discretion, with the consent of the Directing
      Certificateholder); provided, that in the case of clause (c) and clause
      (d) the applicable Special Servicer will not follow any such direction, or
      refrain from acting based upon the lack of any such direction, of the
      Directing Certificateholder, if following any such direction of the
      Directing Certificateholder or refraining from taking such action based
      upon the lack of any such direction of the Directing Certificateholder
      would violate the Servicing Standard; or

            (ii) any Monthly Payment (other than a Balloon Payment) or monthly
      debt service payment is 60 days or more delinquent; or

            (iii) the applicable Master Servicer or, with the approval of the
      Directing Certificateholder, the applicable Special Servicer determines
      that a payment default or a material non-monetary default has occurred or
      is imminent and is not likely to be cured within 60 days; or

            (iv) a decree or order of a court or agency or supervisory authority
      having jurisdiction in the premises in an involuntary case under any
      present or future federal or state bankruptcy, insolvency or similar law
      or the appointment of a conservator or receiver or liquidator in any
      insolvency, readjustment of debt, marshaling of assets and liabilities or
      similar proceedings, or for the winding-up or liquidation of its affairs
      is entered against the related Borrower; provided that if such decree or
      order is discharged or stayed within 60 days of being entered, such Loan,
      Companion Loan or Junior Loan, as the case may be, shall not be a
      Specially Serviced Loan (and no Special Servicing Fees, Workout Fees or
      Liquidation Fees will be payable with respect thereto); or

            (v) the related Borrower shall file for or consent to the
      appointment of a conservator or receiver or liquidator in any insolvency,
      readjustment of debt, marshaling of assets and liabilities or similar
      proceedings of or relating to such Borrower or of or relating to all or
      substantially all of its property; or

            (vi) the related Borrower shall admit in writing its inability to
      pay its debts generally as they become due, file a petition to take
      advantage of any applicable insolvency or reorganization statute, make an
      assignment for the benefit of its creditors, or voluntarily suspend
      payment of its obligations; or

            (vii) the applicable Master Servicer has received notice of the
      foreclosure or proposed foreclosure of any lien on the related Mortgaged
      Property; or

            (viii) with respect to any Loan that is a part of any Loan
      Combination where the related Junior Loan Holder has exercised its right
      to cure consecutive monetary defaults up to the amount of consecutive
      monetary defaults permitted pursuant to the related Intercreditor
      Agreement, the occurrence of a monetary default in the following month; or

            (ix) any other default has occurred which, in the reasonable
      judgment of the applicable Special Servicer (with the approval of the
      Directing Certificateholder) or the applicable Master Servicer, has
      materially and adversely affected the value of such Loan, Companion Loan
      or Junior Loan, as the case may be, or otherwise materially and adversely
      affects the interests of the Certificateholders and, in either such case,
      has continued unremedied for 30 days (irrespective of any applicable grace
      period specified in the related Loan Documents), provided that the failure
      of the related Borrower to obtain all-risk casualty insurance that does
      not contain any carve-out for terrorist or similar act (other than such
      amounts as are specifically required by the related Loan Agreement) shall
      not apply with respect to this clause if the applicable Special Servicer
      has determined in accordance with the Servicing Standard that either (a)
      such insurance is not available at commercially reasonable rates and that
      such hazards are not at the time commonly insured against for properties
      similar to the Mortgaged Property and located in or around the region in
      which such Mortgaged Property is located or (b) such insurance is not
      available at any rate.

            Notwithstanding the foregoing, if a default occurs under any Loan
Combination, which the related Junior Loan Holder has the option to cure
pursuant to the related Intercreditor Agreement, then a Servicing Transfer Event
will not be deemed to have occurred with respect to such Loan Combination and
such Loan Combination will not be considered a Specially Serviced Loan unless
and until the related Junior Loan Holder or Companion Loan Holder does not
exercise its option to cure prior to the expiration of the applicable cure
period as described in such related Intercreditor Agreement.

            "Significant Loan": At any time, (a) any Loan (i) whose principal
balance is $20,000,000 or more at such time or (ii) that is (x) a Loan, (y) part
of a group of Crossed Loans or (z) part of a group of Loans made to affiliated
Borrowers that, in each case, in the aggregate, represents 5% or more of the
aggregate outstanding principal balance of the Mortgage Pool at such time or (b)
any one of the ten largest Loans (which for the purposes of this definition
shall include groups of Crossed Loans and groups of Loans made to affiliated
Borrowers), by outstanding principal balance at such time.

            "Similar Law": Any federal, state or local law materially similar to
Section 406 or 407 of ERISA or Section 4975 of the Code.

            "Single-Purpose Entity" or "SPE": A person, other than an
individual, whose organizational documents provide (with such exceptions as may
be approved by the applicable Master Servicer or Special Servicer in their
respective discretion, in each case in accordance with the Servicing Standard)
that it is formed solely for the purpose of owning and pledging Defeasance
Collateral relating to one or more Defeasance Loans; shall not engage in any
business unrelated to such Defeasance Collateral; shall not have any assets
other than those related to its interest in the Defeasance Collateral and may
not incur any indebtedness other than as required to assume the defeased
obligations under the related Note or Notes that have been defeased; shall
maintain its own books, records and accounts, in each case which are separate
and apart from the books, records and accounts of any other Person; shall hold
regular meetings, as appropriate, to conduct its business, and shall observe all
entity level formalities and recordkeeping; shall conduct business in its own
name and use separate stationery, invoices and checks; may not guarantee or
assume the debts or obligations of any other Person; shall not commingle its
assets or funds with those of any other Person; shall pay its obligations and
expenses and the salaries of its own employees from its own funds and allocate
and charge reasonably and fairly any common employees or overhead shared with
Affiliates; shall prepare separate tax returns and financial statements or, if
part of a consolidated group, shall be shown as a separate member of such group;
shall transact business with Affiliates on an arm's-length basis pursuant to
written agreements; shall hold itself out as being a legal entity, separate and
apart from any other Person; if such entity is a limited partnership, shall have
as its only general partners, general partners which are Single-Purpose Entities
which are corporations; if such entity is a corporation, at all relevant times,
has and will have at least one Independent Director; the board of directors of
such entity shall not take any action requiring the unanimous affirmative vote
of 100% of the members of the board of directors unless all of the directors,
including without limitation all Independent Directors, shall have participated
in such vote; shall not fail to correct any known misunderstanding regarding the
separate identity of such entity; if such entity is a limited liability company,
shall have at least one member that is a Single-Purpose Entity which is a
corporation, and such corporation shall be the managing member of such limited
liability company; shall hold its assets in its own name; except for the pledge
of such Defeasance Collateral, shall not pledge its assets for the benefit of
any other person or entity; shall not make loans or advances to any person or
entity; shall not identify its partners, members or shareholders, or any
affiliates of any of them as a division or part of it; if such entity is a
limited liability company, such entity shall dissolve only upon the bankruptcy
of the managing member, and such entity's articles of organization, certificate
of formation and/or operating agreement, as applicable, shall contain such
provision; if such entity is a limited liability company or limited partnership,
and such entity has one or more managing members or general partners, as
applicable, then such entity shall continue (and not dissolve) for so long as a
solvent managing member or general partner, as applicable, exists and such
entity's organizational documents shall contain such provision. The SPE's
organizational documents shall further prohibit any dissolution and winding up
and provide that any insolvency filing for such entity requires the unanimous
consent of all partners, directors (including without limitation all Independent
Directors) or members, as applicable, and that such documents may not without
Rating Agency confirmation of Certificate ratings, in respect of any Significant
Loan, be amended with respect to the Single-Purpose Entity requirements so long
as any Certificates are outstanding.

            "Sole Certificateholder": Any Holder (or Holders provided they act
in unanimity) holding 100% of then outstanding Class A-X, Class A-SP, Class A-Y,
Class L, Class M, Class N, Class O, Class P, Class Q and Class S Certificates or
an assignment of the voting rights thereof; provided, however, that the Class
Principal Balances of the Class A-1, Class A-1-A, Class A-2, Class A-AB, Class
A-3, Class A-4FL, Class A-M, Class A-J, Class B, Class C, Class D, Class E,
Class F, Class G, Class H, Class J and Class K Certificates have been reduced to
zero.

            "Special Servicer": With respect to (a) all of the Group A Loans,
any related Companion Loan or Junior Loans and any related REO Properties, and
any matters relating to the foregoing, Special Servicer No. 1, and (b) all of
the Group B Loans and any related REO Properties, and any matters relating to
the foregoing, Special Servicer No. 2.

            "Special Servicer No. 1": LNR Partners Inc., in its capacity as
special servicer with respect to the Group A Loans, any related Companion Loan
or Junior Loans and any related REO Properties hereunder, or any successor
special servicer appointed as provided herein with respect to the Group A Loans,
any related Junior Loans and any related REO Properties.

            "Special Servicer No. 2": National Consumer Cooperative Bank, in its
capacity as special servicer with respect to the Group B Loans and any related
REO Properties hereunder, or any successor special servicer appointed as
provided herein with respect to the Group B Loans and any related REO
Properties.

            "Special Servicing Fee": With respect to each Specially Serviced
Loan and REO Loan, the fee payable to the applicable Special Servicer pursuant
to the first paragraph of Section 3.11(b), computed on the basis of the Stated
Principal Balance of the related Loan and for the same period for which any
related interest payment on the related Specially Serviced Loan is computed, as
more particularly described in Section 3.11(b).

            "Special Servicing Fee Rate": With respect to each Specially
Serviced Loan and each REO Loan, 0.25% per annum.

            "Specially Designated Co-op Loan": Any NCB Loan that constitutes a
Co-op Loan or any successor REO Loan with respect thereto.

            "Specially Designated Servicing Actions": Any of the 280 Park Avenue
Specially Designated Servicing Actions, the 828-850 Madison Avenue Specially
Designated Servicing Actions, the 500 Sansome Office Specially Designated
Servicing Actions or the 3434 North Washington Boulevard Specially Designated
Servicing Actions, individually or collectively, as the case may be.

            "Specially Serviced Loan": As defined in Section 3.01(b).

            "Startup Day": With respect to the Lower-Tier REMIC and the
Upper-Tier REMIC, the Closing Date; and with respect to the 828-850 Madison
Avenue Loan REMIC, the "startup" day set forth in the REMIC Declaration.

            "State Tax Laws": The state and local tax laws of any state, the
applicability of which to the Trust Fund or the Trust REMICs shall have been
confirmed to the Certificate Administrator in writing either by the delivery to
the Certificate Administrator of an Opinion of Counsel to such effect (which
Opinion of Counsel shall not be at the expense of the Certificate
Administrator), or by the delivery to the Certificate Administrator of a written
notification to such effect by the taxing authority of such state.

            "Stated Principal Balance": With respect to any Loan, Companion Loan
or Junior Loan (other than an REO Loan), as of any date of determination, an
amount equal to (x) the Cut-off Date Principal Balance of such Loan, Companion
Loan or such Junior Loan, as the case may be, or with respect to a Qualified
Substitute Mortgage Loan being substituted for another Loan pursuant to or as
contemplated by Section 2.03(b) hereof, the outstanding principal balance of
such Qualified Substitute Mortgage Loan after application of all scheduled
payments of principal and interest due during or prior to the month of
substitution, whether or not received, minus (y) the sum of:

            (i) the principal portion of each Monthly Payment due on such Loan,
      Companion Loan or Junior Loan, as the case may be, after the Cut-off Date
      (or, with respect to a Qualified Substitute Mortgage Loan substituted for
      another Loan pursuant to or as contemplated by Section 2.03(b) hereof, the
      applicable Due Date during the month of substitution), to the extent
      received from the Borrower or advanced by the applicable Master Servicer
      or Trustee, as applicable, and distributed to Certificateholders, or the
      related Junior Loan Holder, as may be applicable, on or before such date
      of determination;

            (ii) all Principal Prepayments received with respect to such Loan,
      Companion Loan or Junior Loan, as the case may be, after the Cut-off Date
      (or, with respect to a Qualified Substitute Mortgage Loan substituted for
      another Loan pursuant to or as contemplated by Section 2.03(b) hereof, the
      applicable Due Date during the month of substitution), to the extent
      distributed to Certificateholders, or the related Junior Loan Holder, as
      may be applicable, on or before such date of determination;

            (iii) the principal portion of all Insurance and Condemnation
      Proceeds and Liquidation Proceeds received with respect to such Loan,
      Companion Loan or Junior Loan, as the case may be, after the Cut-off Date
      (or, with respect to a Qualified Substitute Mortgage Loan substituted for
      another Loan pursuant to or as contemplated by Section 2.03(b) hereof, the
      applicable Due Date during the month of substitution), to the extent
      distributed to Certificateholders or the related Junior Loan Holder, as
      may be applicable, on or before such date of determination;

            (iv) any reduction in the outstanding principal balance of such
      Loan, Companion Loan or Junior Loan, as the case may be, resulting from a
      Deficient Valuation that occurred prior to the end of the Due Period for
      the most recent Distribution Date; and

            (v) any reduction in the outstanding principal balance of such Loan,
      Companion Loan or Junior Loan, as the case may be, due to a modification
      by the applicable Special Servicer pursuant to this Agreement, which
      reduction occurred prior to the end of the Due Period for the most recent
      Distribution Date.

            With respect to any REO Loan, as of any date of determination, an
amount equal to (x) the Stated Principal Balance of the predecessor Loan or
Junior Loan, as applicable, as of the related REO Acquisition Date, minus (y)
the sum of:

            (i) if such REO Loan relates to a predecessor Loan, the principal
      portion of any P&I Advance made with respect to such REO Loan on or after
      the related REO Acquisition Date, to the extent distributed to
      Certificateholders on or before such date of determination; and

            (ii) the principal portion of all Insurance and Condemnation
      Proceeds, Liquidation Proceeds and REO Revenues received with respect to
      such REO Loan, to the extent distributed to Certificateholders or the
      related Junior Loan Holder, as applicable, on or before such date of
      determination.

            Each Loan (and any successor REO Loan with respect thereto) shall be
deemed to be part of the Trust Fund and to have an outstanding Stated Principal
Balance until the Distribution Date on which the payments or other proceeds, if
any, received in connection with a Liquidation Event in respect thereof (or any
related REO Property) are to be distributed to Certificateholders; and,
following such Distribution Date, such Stated Principal Balance shall be zero.

            The Stated Principal Balance of any Loan (or any successor REO Loan
with respect thereto) as to which there has been a Final Recovery Determination
shall be, following the application of all amounts received in connection with
such Loan (or any related REO Property) in accordance with the terms hereof,
zero.

            Notwithstanding anything to the contrary contained in this
definition, any payment or other collection of principal on or with respect to
any Loan (or any successor REO Loan with respect thereto) that constitutes part
of the Principal Distribution Amount for any Distribution Date, without regard
to the proviso to the first sentence of the definition of "Principal
Distribution Amount" and, further, without regard to any Principal Distribution
Adjustment Amount for such Distribution Date, shall be deemed to be distributed
to Certificateholders on such Distribution Date for purposes of this definition.

            "Statement to Certificateholders": As defined in Section 4.02(a).

            "Static Prepayment Premium": A form of prepayment consideration
payable in connection with any voluntary or involuntary principal prepayment
that is calculated solely as a specified percentage of the amount prepaid, which
percentage may change over time.

            "Sub-Servicer": Any Person engaged by either Master Servicer or the
Special Servicer to perform Servicing with respect to one or more Loans or REO
Properties, including any Primary Servicer.

            "Sub-Servicing Agreement": The subservicing agreements between a
Master Servicer or a Special Servicer, as the case may be, and any Sub-Servicer
relating to servicing and administration of Loans by such Sub-Servicer as
provided in Section 3.22, including any Primary Servicing Agreement.

            "Subordinate Certificate": Any Class A-M, Class A-J, Class B, Class
C, Class D, Class E, Class F, Class G, Class H, Class J, Class K, Class L, Class
M, Class N, Class O, Class P, Class Q, Class S or Class R Certificate.

            "Substitution Shortfall Amount": With respect to a substitution
pursuant to or as contemplated by Section 2.03(b) hereof, an amount equal to the
excess, if any, of the Purchase Price of the Loan being replaced calculated as
of the date of substitution over the initial Stated Principal Balance of the
related Qualified Substitute Mortgage Loan. In the event that one or more
Qualified Substitute Mortgage Loans are substituted (at the same time) for one
or more deleted Loans, the Substitution Shortfall Amount shall be determined as
provided in the preceding sentence on the basis of the aggregate Purchase Prices
of the Loan or Loans being replaced and the aggregate initial Stated Principal
Balances of the related Qualified Substitute Mortgage Loan or Loans.

            "Successor Manager": As defined in Section 3.19(b).

            "Swap Agreement": The 1992 ISDA (Multi-Currency Cross-Border) Master
Agreement together with the related schedule, confirmation and any annexes
thereto, dated as of September 28, 2006, by and among the Swap Counterparty and
the Certificate Administrator, solely in its capacity as Certificate
Administrator, on behalf of the Trust, or any replacement interest rate swap
agreement entered into by the Certificate Administrator in accordance with the
terms of Section 3.33.

            "Swap Counterparty": Credit Suisse International and its successors
in interest or any swap counterparty under a replacement Swap Agreement.

            "Swap Counterparty Ratings Threshold" shall mean (A) the unsecured,
unguaranteed and otherwise unsupported long-term senior debt obligations of the
Swap Counterparty are rated at least "BBB-" by S&P and Fitch and (B) the
unsecured, unguaranteed and otherwise unsupported long-term senior debt
obligations of the Swap Counterparty are rated at least "A3" by Moody's (and
such rating is not on watch for possible downgrade) and the unsecured,
unguaranteed and otherwise unsupported short-term debt obligations of the Swap
Counterparty are rated at least "P-2" by Moody's (and such rating is not on
watch for possible downgrade).

            "Swap Default": Any failure on the part of the Swap Counterparty to
(i) make a required payment under the Swap Agreement as and when due thereunder,
(ii) either post acceptable collateral or find an acceptable replacement Swap
Counterparty after a Collateralization Event (as defined in the Swap Agreement)
has occurred as required by Part 5, paragraph (b)(1) of the Schedule to the
Master Agreement in the related Swap Agreement or (iii) find an acceptable
replacement Swap Counterparty after a Rating Agency Trigger Event has occurred
as required by Part 5, paragraph (b)(2) of the Schedule to the Master Agreement
in the related Swap Agreement.

            "Swap Upfront Payment": Any payment made by the Swap Counterparty to
the Certificate Administrator (on behalf of the Depositor) on the Closing Date,
representing amounts due from the Swap Counterparty to the Depositor.

            "Swap Termination Fees": Any fees, costs or expenses payable by the
Swap Counterparty to the Trust in connection with a Swap Default, termination of
the Swap Agreement or liquidation of the Swap Agreement, as specified in the
Swap Agreement

            "Tax Returns": The federal income tax returns on Internal Revenue
Service Form 1066, U.S. Real Estate Mortgage Investment Conduit (REMIC) Income
Tax Return, including Schedule Q thereto, Quarterly Notice to Residual Interest
Holders of REMIC Taxable Income or Net Loss Allocation, or any successor forms,
to be filed on behalf of each of the Upper-Tier REMIC, the Lower-Tier REMIC and
the 828-850 Madison Avenue Loan REMIC created hereunder due to its
classification as a REMIC under the REMIC Provisions, and Form 1041 for the
Grantor Trust for U.S. federal income tax purposes, together with any and all
other information, reports or returns that may be required to be furnished to
the Certificateholders or filed with the Internal Revenue Service or any other
governmental taxing authority under any applicable provisions of federal or
State Tax Laws.

            "Termination Notice": As defined in Section 7.01(b).

            "Time of Sale Information": Collectively, the Depositor's free
writing prospectus dated as of September 7, 2006 and the Depositor's free
writing prospectus dated as of September 20, 2006.

            "Total Loans": The 828-850 Madison Avenue Total Loan, 3434 North
Washington Boulevard Total Loan, the 500 Sansome Office Total Loan and the 280
Park Avenue Total Loan, collectively or individually, as the case may be.

            "Transfer": Any direct or indirect transfer, sale, pledge,
hypothecation, or other form of assignment of any Ownership Interest in a
Certificate.

            "Transfer Affidavit and Agreement": As defined in Section 5.02(d).

            "Transferee": Any Person who is acquiring by Transfer any Ownership
Interest in a Certificate.

            "Transferor": Any Person who is disposing by Transfer any Ownership
Interest in a Certificate.

            "Treasury Rate": With respect to any Principal Prepayment made on a
Loan, the yield calculated by the linear interpolation of the yields reported in
Federal Reserve Statistical Release H.15 Selected Interest Rates (the "Release")
under the heading "U.S. government securities" and the subheading "Treasury
constant maturities" for the week ending immediately before the related
Prepayment Date, of U.S. Treasury constant maturities with maturity dates (one
longer and one shorter) most nearly approximating the Maturity Date of such Loan
(or, if such Loan is an ARD Loan, the related Anticipated Repayment Date). If
the Release is no longer published, the applicable Master Servicer shall select
a comparable publication to determine the Treasury Rate in its reasonable
discretion.

            "Trust": The trust created hereby.

            "Trust Assets": The assets comprising the Trust Fund.

            "Trust Fund": The segregated pool of assets subject hereto,
constituting the Trust, consisting of: (i) the Loans subject to this Agreement
and all interest and principal received or receivable on or with respect to the
Loans (other than payments of principal and interest due and payable on the
Loans on or before the Cut-off Date and Principal Prepayments paid on or before
the Cut-off Date), together with all documents included in the related Mortgage
Files; (ii) such funds or assets as from time to time are deposited in the
Collection Accounts, the Distribution Account, the Excess Liquidation Proceeds
Account, the Floating Rate Account, the Grantor Trust Distribution Account, the
Interest Reserve Account and, if established, the REO Accounts, to the extent
not allocable to a Junior Loan; (iii) any REO Property, to the extent not
allocable to a Junior Loan; (iv) the rights of the mortgagee under all Insurance
Policies with respect to the Loans; (v) the Uncertificated Lower-Tier Interests,
the 828-850 Madison Avenue Loan REMIC Regular Interest and the 828-850 Madison
Avenue Loan REMIC Residual Interest; (vi) the Swap Agreement and the rights of
the Certificate Administrator under the Swap Agreement, (vii) the rights of the
Depositor under the Mortgage Loan Purchase Agreements; and (viii) the rights of
the Trustee under the Column Performance Guarantee.

            "Trust REMIC": Any of the Upper-Tier REMIC, the Lower-Tier REMIC or
the 828-850 Madison Avenue Loan REMIC.

            "Trustee": Wells Fargo Bank, N.A., a national banking association,
in its capacity as trustee and its successors in interest, or any successor
trustee appointed as herein provided.

            "Trustee Exception Report": As defined in Section 2.02(e).

            "Trustee Fee": The fee to be paid to the Trustee as compensation for
the Trustee's activities under this Agreement; provided that the portion of the
Trustee Fee defined herein as the Certificate Administrator Fee shall be
retained by the Certificate Administrator.

            "Trustee Fee Rate": A rate equal to 0.0006% per annum computed on
the same basis and in the same manner as interest is computed on the related
Loan or REO Loan (except that in the case of any mortgage loans that provide for
payment of a fixed interest amount during any interest only period, on a 30/360
basis during the interest only period of such loan and on an Actual/360 Basis
otherwise).

            "UCC": The Uniform Commercial Code, as enacted in each applicable
state.

            "UCC Financing Statement": A financing statement filed or to be
filed pursuant to the UCC, as in effect in the relevant jurisdiction.

            "UCC Financing Statement Amendment": A financing statement amendment
filed or to be filed pursuant to the UCC, as in effect in the relevant
jurisdiction.

            "Uncertificated Accrued Interest Amount": With respect to each
Distribution Date and each Uncertificated Lower-Tier Interest, an amount equal
to interest for the related Interest Accrual Period at the Lower-Tier Remittance
Rate applicable to such Uncertificated Lower-Tier Interest for such Distribution
Date, accrued on the related Lower-Tier Principal Amount of such Uncertificated
Lower-Tier Interest (or, in the case of the Class LA-Y Lower-Tier Interest, on
the Lower-Tier Notional Balance thereof) immediately prior to such Distribution
Date. With respect to each Distribution Date and the 828-850 Madison Avenue Loan
REMIC Regular Interest, an amount equal to interest for the related Interest
Accrual Period at the 828-850 Madison Avenue Loan Mortgage Rate applicable to
such 828-850 Madison Avenue Loan REMIC Regular Interest for such Distribution
Date, accrued on the related 828-850 Madison Avenue Loan REMIC Principal Balance
of such 828-850 Madison Avenue Loan REMIC Regular Interest immediately prior to
such Distribution Date. The Uncertificated Accrued Interest Amount for each
Uncertificated Lower-Tier Interest shall be calculated on a 30/360 Basis.

            "Uncertificated Lower-Tier Interests": The uncertificated "regular
interests," within the meaning of Section 860G(a)(1) of the Code, in the
Lower-Tier REMIC, which "regular interests" consist of the Class LA-1-1, Class
LA-1-2, Class LA-2-1, Class LA-2-2, Class LA-AB-1, Class LA-AB-2, Class LA-3-1,
Class LA-3-2, Class LA-3-3, Class LA-3-4, Class LA-3-5, Class LA-4FL, Class
LA-1-A-1, Class LA-1-A-2, Class LA-3-3, Class LA-1-A-4, Class LA-1-A-5, Class
LA-1-A-6, Class LA-1-A-7, Class LA-1-A-8, Class LA-M, Class LA-J, Class LA-Y,
Class LB, Class LC-1, Class LC-2, Class LD-1, Class LD-2, Class LE, Class LF-1,
Class LF-2, Class LG, Class LH-1, Class LH-2, Class LJ, Class LK, Class LL,
Class LM, Class LN, Class LO, Class LP, Class LQ and Class LS Lower-Tier
Interests.

            "Uncovered Prepayment Interest Shortfall": As to any Distribution
Date and any Loan as to which a Prepayment Interest Shortfall was incurred with
respect to any Principal Prepayment occurring during the related Due Period, the
excess, if any, of (i) such Prepayment Interest Shortfall, over (ii) the deposit
made by the applicable Master Servicer to the Certificate Administrator in
respect of such Prepayment Interest Shortfall pursuant to Section 3.02(e).

            "Uncovered Prepayment Interest Shortfall Amount": As to any
Distribution Date, the sum of the Uncovered Prepayment Interest Shortfalls, if
any, for such Distribution Date.

            "Underwriter Exemption": PTE 89-90, as amended by PTE 97-34, PTE
2000-58 and PTE 2002-41, and as may be subsequently amended following the
Closing Date.

            "Underwriters": Collectively, Credit Suisse Securities (USA) LLC,
LaSalle Financial Services, Inc., KeyBanc Capital Markets, a Division of
McDonald Investments Inc., Barclays Capital Inc., Wachovia Capital Markets, LLC
and Greenwich Capital Markets, Inc.

            "Unliquidated Advance": Any Advance previously made by a party
hereto that has been previously reimbursed, as between the Person that made the
Advance hereunder, on the one hand, and the Trust Fund, on the other, as part of
a Workout-Delayed Reimbursement Amount pursuant to subsection (vi) of Section
3.05(b) but that has not been recovered from the Borrower or otherwise from
collections on or the proceeds of the Loan or REO Property in respect of which
the Advance was made.

            "Unpaid Interest Shortfall Amount": As to any Class of Regular
Certificates or the Class A-4FL Regular Interest or any Uncertificated
Lower-Tier Interest, for the first Distribution Date, zero. With respect to any
Class of Regular Certificates or the Class A-4FL Regular Interest or any
Uncertificated Lower-Tier Interest, for any Distribution Date after the first
Distribution Date, the amount, if any, by which the sum of the Monthly Interest
Distribution Amounts for such Class or the Class A-4FL Regular Interest or such
Uncertificated Lower-Tier Interest, as the case may be, for all prior
Distribution Dates exceeds the sum of the amounts distributed on such Class or
deemed distributed on such Uncertificated Lower-Tier Interest, as the case may
be, on all prior Distribution Dates in respect of accrued interest.

            "United States Securities Person": Any "U.S. person" as defined in
Rule 902(k) of Regulation S.

            "United States Tax Person": A citizen or resident of the United
States, a corporation, partnership (except to the extent provided in applicable
Treasury regulations), or other entity (including any entity treated as a
corporation or partnership for federal income tax purposes) created or organized
in, or under the laws of, the United States, any State or the District of
Columbia, or an estate whose income is includible in gross income for United
States federal income tax purposes regardless of its source, or a trust if a
court within the United States is able to exercise primary supervision over the
administration of the trust and one or more United States Tax Persons have the
authority to control all substantial decisions of the trust, all within the
meaning of Section 7701(a)(30) of the Code (including certain trusts in
existence on August 20, 1996 that are eligible to elect to be treated as United
States Tax Persons).

            "Unrestricted Master Servicer Reports": Collectively, the CMSA
Delinquent Loan Status Report, CMSA Historical Loan Modification and Corrected
Mortgage Loan Report, CMSA REO Status Report, and, if and to the extent filed
with the Commission, such reports and files that would, but for such filing,
constitute Restricted Master Servicer Reports.

            "Upper-Tier REMIC": One of the three separate REMICs comprising the
Trust Fund, the primary assets of which consist of the Uncertificated Lower-Tier
Interests and related amounts in the Distribution Account.

            "Voting Rights": The portion of the voting rights of all of the
Certificates, which is allocated to any Certificate. At all times during the
term of this Agreement and for any date of determination, the Voting Rights
shall be allocated among the various Classes of Certificateholders as follows:
(i) 1% in the case of the Class A-X, Class A-SP and Class A-Y Certificates
(based on the respective Class Notional Amount of each such Class relative to
the aggregate Certificate Notional Amount of the three such Classes), (ii) in
the case of any Class of Sequential Pay Certificates (so long as any such Class
of Certificates has been transferred by the Initial Purchaser or an Affiliate
thereof as part of the initial offering of the Certificates and therefore such
Class of Certificates is not part of the Initial Purchaser's unsold allotment),
a percentage equal to the product of 99% and a fraction, the numerator of which
is equal to the Class Principal Balance of such Class and (iii) 0% for any Class
of Sequential Pay Certificates for as long as any such Class of Certificates has
not been transferred by the Initial Purchaser or an Affiliate thereof as part of
the initial offering of the Certificates and therefore such Class of
Certificates is part of the Initial Purchaser's unsold allotment), in each case,
determined as of the Distribution Date immediately preceding such date of
determination, and the denominator of which is equal to the aggregate of the
Class Principal Balances of all the Classes of Sequential Pay Certificates, each
determined as of the Distribution Date immediately preceding such date of
determination. None of the Class V or Class R Certificates will be entitled to
any Voting Rights. For purposes of determining Voting Rights, the Class
Principal Balance of any Class shall be deemed to be reduced by allocation of
the Collateral Support Deficit to such Class, but not by Appraisal Reductions
allocated to such Class. Voting Rights allocated to a Class of
Certificateholders shall be allocated among such Certificateholders in
proportion to the Percentage Interests evidenced by their respective
Certificates.

            "Website": The internet website maintained by the Certificate
Administrator (initially located at www.etrustee.net) or the internet website of
a Master Servicer.

            "Weighted Average Net Mortgage Pass-Through Rate": As to any
Distribution Date, the weighted average of the Net Mortgage Pass-Through Rates
of all the Loans and REO Loans in the Mortgage Pool, weighted based on their
respective Stated Principal Balances immediately prior to such Distribution
Date. In the case of the 828-850 Madison Avenue Loan, "Loan" shall refer to the
828-850 Madison Avenue Loan REMIC Regular Interest for purposes of this
definition.

            "Withheld Amounts": As defined in Section 3.28(a).

            "Workout-Delayed Reimbursement Amount": With respect to any Loan,
the amount of any Advance made with respect to such Loan on or before the date
such Loan becomes a Corrected Loan, together with (to the extent accrued and
unpaid) interest on such Advances, to the extent that (i) such Advance is not
reimbursed to the Person who made such Advance on or before the date, if any, on
which such Loan becomes a Corrected Loan and (ii) the amount of such Advance
becomes an obligation of the Borrower to pay such amount under the terms of the
modified Loan Documents. The fact that any amount constitutes all or a portion
of any Workout-Delayed Reimbursement Amount shall not in any manner limit the
right of any Person hereunder to determine that such amount instead constitutes
a Nonrecoverable Advance.

            "Workout Fee": The fee paid to the applicable Special Servicer with
respect to each Corrected Loan.

            "Workout Fee Rate": As defined in Section 3.11(b).

            "Yield Maintenance Charge": With respect to any Loan, the yield
maintenance charge set forth in the related Loan Documents, including but not
limited to a yield maintenance charge which is based on the amount of Defeasance
Collateral. If a Yield Maintenance Charge becomes due for any particular Loan,
the applicable Master Servicer shall be required to follow the terms and
provisions contained in the applicable Loan Documents; provided, however, that
if the related Loan Documents do not specify which U.S. Treasury obligations are
to be used in determining the discount rate or the reinvestment yield to be
applied in such calculation, or if the related Loan Documents are ambiguous, the
applicable Master Servicer shall be required to use those U.S. Treasury
obligations that will generate the lowest discount rate or reinvestment yield
for the purposes thereof. Accordingly, if either no U.S. Treasury obligation, or
more than one U.S. Treasury obligation, coincides with the term over which the
Yield Maintenance Charge is to be calculated (which, depending on the applicable
Loan Documents, is based on the remaining average life of the Loan or the actual
term remaining through the Maturity Date or, in the case of an ARD Loan, the
Anticipated Repayment Date), the applicable Master Servicer shall use the U.S.
Treasury obligations that mature closest to but not exceeding the month in which
the term over which the Yield Maintenance Charge is to be calculated ends, and
whose reinvestment yield is the lowest, with such yield being based on the bid
price for such issue as published in the Treasury Bonds, Notes and Bills section
of The Wall Street Journal on the date that is 14 days prior to the date that
the Yield Maintenance Charge becomes due and payable (or, if such bid price is
not published on that date, the first preceding date on which such bid price is
so published) and converted to a monthly compounded nominal yield. The monthly
compounded nominal yield ("MEY") is derived from the reinvestment yield or
discount rate and shall be defined as MEY = (12 x [{(1+BEY/2)^1/6}-1]) x 100
where BEY is defined as the U.S. Treasury Reinvestment Yield in decimal, not
percentage, form, and 1/6 is the exponential power to which a portion of the
equation is raised. For example, using a BEY of 5.50%, the MEY = (12 x [{(1 +
0.055/2)^0.16667}-1]) x 100, where 0.055 is the decimal version of the
percentage 5.50%, and 0.16667 is the decimal version of the exponential power.
(The MEY calculated in the above example is 5.438%.)

            "Yield Maintenance Minimum Amount": With respect to a Mortgage Loan
that provides for a Yield Maintenance Charge to be paid in connection with any
Principal Prepayment thereon or other early collection of principal thereof, any
specified amount or specified percentage of the amount prepaid which constitutes
the minimum amount that such Yield Maintenance Charge may be.

            "Yield Rate": With respect to any Loan, a rate equal to a per annum
rate calculated by the linear interpolation of the yields, as reported in the
most recent "Federal Reserve Statistical Release H.15 - Selected Interest Rates"
under the heading U.S. Government Securities/Treasury constant maturities
published prior to the date of the relevant prepayment of any Loan, of U.S.
Treasury constant maturities with maturity dates (one longer, one shorter) most
nearly approximating the maturity date (or, with respect to ARD Loans, the
Anticipated Repayment Date) of the Loan being prepaid or the monthly equivalent
of such rate. If Federal Reserve Statistical Release H.15 - Selected Interest
Rates is no longer published, the applicable Master Servicer, on behalf of the
Trustee, will select a comparable publication to determine the Yield Rate.

            Section 1.02 Certain Calculations.

            Unless otherwise specified herein, for purposes of determining
amounts with respect to the Certificates and the rights and obligations of the
parties hereto, the following provisions shall apply:

                  (i) All calculations of interest (unless otherwise expressly
            set forth herein, and other than as provided in the Loan Documents)
            provided for herein shall be made on the basis of a 360-day year
            consisting of twelve 30-day months.

                  (ii) Any payment on a Loan, Companion Loan or a Junior Loan is
            deemed to be received on the date such payment is actually received
            by the applicable Master Servicer or the applicable Special
            Servicer; provided, however, that for purposes of calculating
            distributions on the Certificates, (i) any voluntary Principal
            Prepayment made on a date other than the related Due Date and in
            connection with which the applicable Master Servicer has collected
            interest thereon through the end of the related Mortgage Interest
            Accrual Period shall be deemed to have been made, and the applicable
            Master Servicer shall apply such Principal Prepayment to reduce the
            outstanding principal balance of the related Loan as if such
            Principal Prepayment had been received, on the following Due Date
            and (ii) all other Principal Prepayments with respect to any Loan or
            Junior Loan are deemed to be received on the date they are applied
            to reduce the outstanding principal balance of such Loan or Junior
            Loan, as the case may be.

            Section 1.03 General Interpretive Principles.

            For purposes of this Agreement, except as otherwise expressly
provided or unless the context otherwise requires:

            (i) the terms defined in this Agreement include the plural as well
      as the singular, and the use of any gender herein shall be deemed to
      include the other gender;

            (ii) accounting terms not otherwise defined herein have the meanings
      assigned to them in accordance with GAAP as in effect from time to time;

            (iii) references herein to "Articles," "Sections," "Subsections,"
      "Paragraphs" and other subdivisions without reference to a document are to
      designated Articles, Sections, Subsections, Paragraphs and other
      subdivisions of this Agreement;

            (iv) a reference to a Subsection without further reference to a
      Section is a reference to such Subsection as contained in the same Section
      in which the reference appears, and this rule shall also apply to
      Paragraphs and other subdivisions;

            (v) the words "herein," "hereof," "hereunder," "hereto," "hereby"
      and other words of similar import refer to this Agreement as a whole and
      not to any particular provision; and

            (vi) the terms "include" and "including" shall mean without
      limitation by reason of enumeration.

            Section 1.04 Certain Matters with Respect to the 828-850 Madison
Avenue Total Loan, the 500 Sansome Office Total Loan and the 3434 North
Washington Boulevard Total Loan.

            (a) The parties hereto acknowledge that, pursuant to the related
Intercreditor Agreement, if none of the 828-850 Madison Avenue Loan, the 500
Sansome Office Loan, the 3434 North Washington Boulevard Loan, as applicable,
nor an interest in any related REO Property is part of the Trust Fund, then the
828-850 Madison Avenue Total Loan, the 500 Sansome Office Loan, the 3434 North
Washington Boulevard Loan or any related REO Property, as applicable, shall be
serviced and administered in accordance with such successor servicing
arrangements as are consistent with the related Intercreditor Agreement.

            (b) For the avoidance of doubt, and subject to subsection (a) above,
the parties acknowledge the rights and duties of each of Master Servicer No. 1
and Special Servicer No. 1 under this Agreement and the obligation of Master
Servicer No. 1 or the Trustee to make Advances (subject to Section 1.04(c)),
insofar as such rights, duties and obligations relate to any Total Loan, shall
terminate upon the occurrence of a Liquidation Event with respect to the related
Loan or any related REO Property; provided, however, that this statement shall
not limit (A) the duty of Master Servicer No. 1 or Special Servicer No. 1 to
deliver or make available the reports otherwise required of it hereunder with
respect to the period in which such event occurs or (B) the rights of Master
Servicer No. 1 or Special Servicer No. 1 that may otherwise accrue or arise in
connection with the performance of its duties hereunder with respect to a Total
Loan prior to the date on which such event occurs.

            (c) None of the Master Servicers or the Trustee shall make P&I
Advances as to any Junior Loan.

            Section 1.05 Certain Matters with respect to the 280 Park Avenue
Total Loan.

            (a) The parties hereto acknowledge that, pursuant to Section 3.1.5
of the 280 Park Avenue Intercreditor Agreement, if the 280 Park Avenue Loan is
no longer part of the Trust, the holder of the related Companion Loan, if such
Companion Loan is part of a rated securitization, shall automatically become the
lead lender and the Loan and the related Companion Loan, shall be serviced
pursuant to the servicing agreement governing the securitization containing such
Companion Loan.

            (b) The parties hereto acknowledge that, pursuant to Section 3.1.6
of the 280 Park Avenue Intercreditor Agreement, if the related A Loan is no
longer part of the Trust and the related Companion Loan is not part of any rated
securitization, the new holder of the Loan (in consultation with the holder of
the related Companion Loan) shall negotiate one or more new servicing
agreements.

            (c) For the avoidance of doubt, and subject to subsection (a) above,
the parties acknowledge that the rights and duties of each of the Master
Servicer and the Special Servicer under this Agreement and the obligation of the
Master Servicer or the Trustee to make Advances, insofar as such rights, duties
and obligations relate to the 280 Park Avenue Total Loan shall terminate upon
the earliest to occur of the following: (i) any repurchase of or substitution
for the 280 Park Avenue Loan by the related Mortgage Loan Seller, (ii) any
purchase of the 280 Park Avenue Loan by any related Companion Loan Holder
pursuant to the terms of the related Intercreditor Agreement and (iii) any
payment in full of any and all amounts due (or deemed due) under the 280 Park
Avenue Loan (including amounts to which the holder of such Loan is entitled
under the related Intercreditor Agreement); provided, however, that this
statement shall not limit (A) the duty of the Master Servicer or Special
Servicer to deliver or make available the reports otherwise required of it
hereunder with respect to the period in which such event occurs or (B) the
rights of the Master Servicer or such Special Servicer that may otherwise accrue
or arise in connection with the performance of its duties hereunder with respect
to the 280 Park Avenue Total Loan prior to the date on which such event occurs.

            (d) In connection with any purchase described in clause (ii) of
subsection (c) or an event described in clause (iii) of subsection (c), the
Trustee, the Master Servicer and the Special Servicer shall each tender to (in
the case of a purchase under such clause (ii)) the related purchaser (provided
that the related purchaser shall have paid the full amount of the applicable
purchase price) or (in the case of such clause (iii)) to the holder of any
related Companion Loan (if then still outstanding), upon delivery to them of a
receipt executed by such purchaser or holder, so long as the Companion Loan is
part of a rated securitization as contemplated by Section 1.04(a), the original
Note that relates to the A Loan held by the Trustee and copies of the documents
contained in the Mortgage File. All portions of the Mortgage File possessed by
the Trustee and other documents pertaining to the 280 Park Avenue Total Loan
possessed by the Trustee, and each document that constitutes a part of the
Mortgage File shall be endorsed or assigned by the Trustee to the trustee of the
rated securitization that contains the Companion Loan in the same manner, and
pursuant to appropriate forms of assignment prepared by the Master Servicer,
substantially similar to the manner and forms pursuant to which documents were
previously assigned to the Trustee by the applicable Mortgage Loan Seller, but
in any event, without recourse, representation or warranty; provided that such
tender by the Trustee shall be conditioned upon its receipt from the Master
Servicer of a Request for Release in the form of Exhibit F hereto. The Master
Servicer shall, and is also hereby authorized and empowered by the Trustee to,
convey to such purchaser or such holder any deposits then held in an Escrow
Account relating to the 280 Park Avenue Total Loan. If the 280 Park Avenue Loan
and any related Companion Loan are then REO Loans, then the Special Servicer
shall, and is also hereby authorized and empowered by the Trustee to, convey to
such purchaser or such holder, in each case, to the extent not needed to pay or
reimburse the Master Servicer, the Special Servicer or the Trustee in accordance
with this Agreement, deposits then held in the REO Account insofar as they
relate to the related REO Property and, to the extent related to a Loan
Combination, the related Companion Loan Holder or B Loan Holder.

            (e) None of the Master Servicers or the Trustee shall make P&I
Advances as to the Companion Loan or any Junior Loan.

            Section 1.06 Certain Considerations Regarding Reimbursements of
Nonrecoverable Advances and Workout-Delayed Reimbursement Amounts.

            (a) If any party hereto is reimbursed, in accordance with clause
(vii) of Section 3.05(a) and/or clause (v) of Section 3.05(b), out of general
collections on the Mortgage Pool on deposit in a Collection Account or the
Distribution Account, as applicable, for any Nonrecoverable Advance or any
Workout-Delayed Reimbursement Amount or for any interest accrued and payable on
any such Nonrecoverable Advance, then (for purposes of calculating distributions
on the Certificates) such reimbursement and/or such payment of interest shall be
deemed to have been made (without regard from which account it is actually
made):

                  first, out of any amounts representing payments or other
      collections of principal received by the Trust with respect to the Loan
      Group to which such Loan generating the Nonrecoverable Advance or
      Workout-Delayed Reimbursement Amount belongs that, but for their
      application to reimburse a Nonrecoverable Advance and/or to pay interest
      thereon, would be included in the Available Distribution Amount for any
      subsequent Distribution Date;

                  second, out of any amounts representing payments or other
      collections of principal received by the Trust with respect to the other
      Loan Group that, but for their application to reimburse a Nonrecoverable
      Advance or Workout-Delayed Reimbursement Amount and/or to pay interest
      thereon, would be included in the Available Distribution Amount for any
      subsequent Distribution Date;

                  third, out of any amounts (but solely principal collections
      with respect to Workout-Delayed Reimbursement Amounts unless it has been
      determined in accordance with this Agreement that such Workout-Delayed
      Reimbursement Amounts are Nonrecoverable Advances) representing any other
      payments or other collections received by the Trust with respect to the
      Loan Group to which such Loan generating the Nonrecoverable Advance
      belongs that, but for their application to reimburse a Nonrecoverable
      Advance or Workout-Delayed Reimbursement Amount and/or to pay interest
      thereon, would be included in the Available Distribution Amount for any
      subsequent Distribution Date;

                  fourth, out of any amounts (but solely principal collections
      with respect to Workout-Delayed Reimbursement Amounts unless it has been
      determined in accordance with this Agreement that such Workout-Delayed
      Reimbursement Amounts are Nonrecoverable Advances) representing any other
      payments or other collections received by the Trust with respect to the
      other Loan Group that, but for their application to reimburse a
      Nonrecoverable Advance or Workout-Delayed Reimbursement Amount and/or to
      pay interest thereon, would be included in the Available Distribution
      Amount for any subsequent Distribution Date; and

                  fifth, out of any other amounts (but solely principal
      collections with respect to Workout-Delayed Reimbursement Amounts unless
      it has been determined in accordance with this Agreement that such
      Workout-Delayed Reimbursement Amounts are Nonrecoverable Advances) that
      may be available in the Collection Accounts, as a collective whole, and/or
      the Distribution Account to reimburse the subject Nonrecoverable Advance
      or Workout-Delayed Reimbursement Amount and/or to pay interest thereon.

In each of the above instances the amount available to reimburse the
Workout-Delayed Reimbursement Amounts shall be limited to principal collections,
net of amounts applied to reimburse Nonrecoverable Advances and interest
thereon.

            (b) If any party hereto is reimbursed, in accordance with clause
(vi) of Section 3.05(b), out of general collections on the Mortgage Pool on
deposit in the Distribution Account for any Nonrecoverable Advance or
Workout-Delayed Reimbursement Amount (together with interest accrued and payable
thereon), then (for purposes of calculating distributions on the Certificates)
such reimbursement and/or such payment of interest shall be deemed to have been
made out of any amounts then on deposit in the Distribution Account that
represent payments or other collections of principal received by the Trust
first, from such principal payments or collections that are allocated to the
Loan Group to which such Loan generating the Nonrecoverable Advance or
Workout-Delayed Reimbursement Amount belongs and second, from such principal
payments or collections allocated to the other Loan Group, that in either case,
but for their application to reimburse a Nonrecoverable Advance or
Workout-Delayed Reimbursement Amount and/or to pay interest thereon, would be
included in the Available Distribution Amount for any Distribution Date.

            (c) If and to the extent that any Advance is determined to be a
Nonrecoverable Advance or Workout-Delayed Reimbursement Amount, as applicable,
such Advance and/or interest thereon is reimbursed out of general collections on
the Mortgage Pool as contemplated by Section 1.05(a) above and the particular
item for which such Nonrecoverable Advance or Workout-Delayed Reimbursement
Amount was originally made is subsequently collected out of payments or other
collections in respect of the related Trust Mortgage Loan, then the Total
Principal Distribution Amount for the Distribution Date that corresponds to the
Due Period in which such item was recovered shall be increased by an amount
equal to the lesser of (A) the amount of such item and (B) any previous
reduction in the Principal Distribution Amount for a prior Distribution Date
pursuant to Section 1.05(b) above resulting from the reimbursement of the
subject Advance and/or the payment of interest thereon.

                                   ARTICLE II

             CONVEYANCE OF LOANS; ORIGINAL ISSUANCE OF CERTIFICATES

            Section 2.01 Conveyance of Loans.

            (a) It is the intention of the parties hereto, that a common law
trust be established under the laws of the State of New York pursuant to this
Agreement and, further, that such trust be designated as "Credit Suisse First
Boston Mortgage Securities Trust, Series 2006-C4." Wells Fargo is hereby
appointed, and does hereby agree to act, as Trustee hereunder and, in such
capacity, to hold the Trust Fund in trust for the exclusive use and benefit of
all present and future Certificateholders, the Swap Counterparty, Companion Loan
Holders and Junior Loan Holders (as their interests may appear). It is not
intended that this Agreement create a partnership or a joint-stock association.

            The Depositor, concurrently with the execution and delivery hereof,
does hereby assign, sell, transfer, set over and otherwise convey to the
Trustee, without recourse, for the benefit of the Certificateholders all the
right, title and interest of the Depositor, including any security interest
therein for the benefit of the Depositor, in, to and under (i) the Loans
(including in the case of the 828-850 Madison Avenue Loan, the 828-850 Madison
Avenue Loan REMIC Regular Interest and the 828-850 Madison Avenue Loan REMIC
Residual Interest) identified on the Mortgage Loan Schedule, (ii) the Mortgage
Loan Purchase Agreements, and (iii) all other assets included or to be included
in the Trust Fund. Such assignment includes all interest and principal received
or receivable on or with respect to the Loans (other than payments of principal
and interest due and payable on the Loans on or before the Cut-off Date and
Principal Prepayments paid on or before the Cut-off Date). The transfer of the
Loans and the related rights and property accomplished hereby is absolute and,
notwithstanding Section 10.07, is intended by the parties to constitute a sale.

            Under GAAP, the Depositor shall report and cause all of its records
to reflect: (i) its acquisition, on the Closing Date, of the CSMC Loans from the
CSMC Mortgage Loan Seller, pursuant to the CSMC Mortgage Loan Purchase
Agreement, as a purchase of such Loans from the CSMC Mortgage Loan Seller; (ii)
its acquisition, on the Closing Date, of the other Loans from the respective
other Mortgage Loan Sellers, pursuant to the respective other Mortgage Loan
Purchase Agreements, as a purchase of such other Loans from such other Mortgage
Loan Sellers; and (iii) its transfer of the Loans to the Trust, pursuant to this
Section 2.01(a), as a sale of such Loans to the Trust; provided that, in the
case of the transactions described in clauses (i) and (iii) of this sentence,
the Depositor shall do so only upon the sale of Certificates representing at
least 10% of the aggregate fair value of all the Certificates to parties that
are not Affiliates of the Depositor. The Depositor shall at all times following
the Closing Date cause all of its records and financial statements and any
relevant consolidated financial statements of any direct or indirect parent
clearly to reflect that the Loans have been transferred to the Trust and are no
longer available to satisfy claims of the Depositor's creditors.

            (b) In connection with the Depositor's assignment pursuant to
Section 2.01(a) above, the Depositor shall direct, and hereby represents and
warrants that it has directed, each Mortgage Loan Seller pursuant to the related
Mortgage Loan Purchase Agreement to deliver to and deposit with, or cause to be
delivered to and deposited with the Trustee, on or before the Closing Date, the
Mortgage File (except items (xvi) and (xxii) of the definition of Mortgage File)
for each Loan so assigned. If a Mortgage Loan Seller cannot deliver, or cause to
be delivered as to any Loan, the original Note, such Mortgage Loan Seller shall
deliver a copy or duplicate original of such Note, together with an affidavit
and customary indemnification substantially in the form attached as Exhibit J
hereto, certifying that the original thereof has been lost or destroyed. With
respect to the Ritz Carlton Mortgage Loan, the delivery of the Mortgage File by
either BCRE or Column shall satisfy the delivery requirements for both BCRE and
Column other than with respect to the Notes.

            If the applicable Mortgage Loan Seller cannot deliver, or cause to
be delivered, as to any Loan, any of the documents and/or instruments referred
to in clauses (ii), (iv), (viii), (xi) (other than assignments of UCC Financing
Statements to be recorded or filed in accordance with the transfer contemplated
by the related Mortgage Loan Purchase Agreement), (xii) and (xiv) of the
definition of "Mortgage File," with evidence of recording or filing thereon,
solely because of a delay caused by the public recording or filing office where
such document or instrument has been delivered for recordation or filing, the
delivery requirements of the related Mortgage Loan Purchase Agreement and this
Section 2.01(b) shall be deemed to have been satisfied and such non-delivered
document or instrument shall be deemed to have been included in the Mortgage
File if: (i) a photocopy or duplicate original of such non-delivered document or
instrument (certified by the applicable public recording or filing office, the
applicable title insurance company or such Mortgage Loan Seller to be a true and
complete copy of the original thereof submitted for recording or filing) is
delivered to the Trustee on or before the Closing Date; and (ii) either the
original of such non-delivered document or instrument, or a photocopy thereof
(certified by the appropriate public recording or filing office to be a true and
complete copy of the original thereof submitted for recording or filing), with
evidence of recording or filing thereon, is delivered to the Trustee or its
designee within 120 days after the Closing Date, which period may be extended up
to two times, in each case for an additional period of 45 days (provided that
such Mortgage Loan Seller, as certified in writing to the Trustee prior to each
such 45-day extension, is in good faith attempting to obtain from the
appropriate recording or filing office such original or photocopy).

            If the applicable Mortgage Loan Seller cannot deliver, or cause to
be delivered, as to any Loan, any of the documents and/or instruments referred
to in clauses (ii), (iv), (viii), (xi) (other than assignments of UCC Financing
Statements to be recorded or filed in accordance with the transfer contemplated
by the related Mortgage Loan Purchase Agreement), (xii) and (xiv) of the
definition of "Mortgage File," with evidence of recording or filing thereon, for
any other reason, including, without limitation, that such non-delivered
document or instrument has been lost, the delivery requirements of the related
Mortgage Loan Purchase Agreement and this Section 2.01(b) shall be deemed to
have been satisfied and such non-delivered document or instrument shall be
deemed to have been included in the Mortgage File if a photocopy or duplicate
original of such non-delivered document or instrument (with evidence of
recording or filing thereon and certified by the appropriate recording or filing
office to be a true and complete copy of the original thereof submitted for
recording or filing) is delivered to the Trustee or its designee on or before
the Closing Date.

            Neither the Trustee, the Certificate Administrator nor any Master
Servicer shall be liable for any failure by any Mortgage Loan Seller or the
Depositor to comply with the delivery requirements of the related Mortgage Loan
Purchase Agreement and this Section 2.01(b). Notwithstanding the foregoing, if
any Mortgage Loan Seller fails, as to any Loan, to deliver a UCC Financing
Statement assignment on or before the Closing Date as required above solely
because the related UCC Financing Statement has not been returned to such
Mortgage Loan Seller by the applicable filing or recording office, such Mortgage
Loan Seller shall not be in breach of its obligations with respect to such
delivery, provided that the Mortgage Loan Seller promptly forwards such UCC
Financing Statement to the Trustee upon its return, together with the related
UCC Financing Statement assignment in a form appropriate for filing or
recording.

            (c) Notwithstanding the foregoing, the Trustee (directly or through
its designee) shall, as to each Loan, use its best efforts to promptly (and in
any event no later than the later of (i) 120 days after the Closing Date (or, in
the case of a Qualified Substitute Mortgage Loan, the related date of
substitution) and (ii) 60 days from receipt of documents in form suitable for
recording or filing, as applicable, including, without limitation, all necessary
recording and filing information) cause to be submitted for recording or filing,
as the case may be, at the expense of the related Mortgage Loan Seller (provided
that, as to the Ritz Carlton Mortgage Loan, each of BCRE and Column shall only
be liable for its pro rata share (i.e., 50%) of such amounts), each assignment
referred to in clauses (iii) and (v) of the definition of "Mortgage File" and
each UCC Financing Statement assignment to the Trustee referred to in clause
(xi) of the definition of "Mortgage File." Unless otherwise indicated on any
documents provided to the Trustee, the Trustee shall file each such UCC
Financing Statement assignment in the state of incorporation or organization of
the related Borrower; provided that the related Mortgage Loan Seller shall have
filed, if necessary, an initial UCC Financing Statement under the Revised
Article 9 of the UCC in lieu of continuation in such jurisdiction. Each such
assignment shall reflect that it should be returned by the public recording
office to the Trustee following recording, and each such UCC Financing Statement
assignment shall reflect that the file copy thereof should be returned to the
Trustee following filing. If any such document or instrument is lost or returned
unrecorded or unfiled because of a defect therein, the Trustee shall prepare or
cause to be prepared a substitute therefor or cure such defect, as the case may
be, and thereafter the Trustee shall upon receipt thereof cause the same to be
duly recorded or filed, as appropriate. The Trustee shall seek reimbursement
from the applicable Mortgage Loan Seller for any costs and expenses incurred in
performing its obligation under this Section 2.01(c). The Depositor hereby
represents and warrants that, as to any Loan, the related Responsible Party is
required to pay for such costs and expenses, as and to the extent provided under
Section 13 of the related Mortgage Loan Purchase Agreement. Notwithstanding the
foregoing, BCRE and Column are each only liable for its pro rata share (i.e.,
50%) of such amounts with respect to the Ritz Carlton Mortgage Loan.

            Notwithstanding the foregoing, any Mortgage Loan Seller may elect,
at its sole cost and expense, to engage a third party contractor to prepare or
complete in proper form for filing and recording any and all of the assignments
described in the immediately preceding paragraph, with respect to the Loans
conveyed by it to the Depositor under the applicable Mortgage Loan Purchase
Agreement, to submit such assignments for filing and recording, as the case may
be, in the applicable public filing and recording offices and to deliver such
assignments to the Trustee or its designee as such assignments (or certified
copies thereof) are received from the applicable filing and recording offices
with evidence of such filing or recording indicated thereon.

            (d) All documents and records in the Depositor's or the applicable
Mortgage Loan Seller's possession relating to the Loans (including reserve and
escrow agreements, cash management agreements, lockbox agreements, rent rolls,
leases, environmental and engineering reports, third-party underwriting reports,
appraisals, surveys, legal opinions, estoppels, financial statements, operating
statements and any other information provided by the respective Borrower from
time to time, but excluding any draft documents, attorney/client communications,
which are privileged or constitute legal or other due diligence analyses, and
documents prepared by Seller or any of its Affiliates solely for internal
communication, credit underwriting or due diligence analyses (other than the
underwriting information contained in the related underwriting memorandum or
asset summary report prepared by the applicable Mortgage Loan Seller in
connection with the preparation of Exhibit A-1 to the Prospectus Supplement))
that are not required to be a part of a Mortgage File in accordance with the
definition thereof, together with copies of all instruments and documents which
are required to be a part of the related Mortgage File in accordance with the
definition thereof, shall be delivered by the Depositor (or the Depositor shall
cause them to be delivered) to the applicable Master Servicer within 10 Business
Days after the Closing Date and shall be held by the applicable Master Servicer
on behalf of the Trustee in trust for the benefit of the Certificateholders (and
as holder of the Uncertificated Lower-Tier Interests).

            (e) In connection with the Depositor's assignment pursuant to
subsection (a) above, the Depositor shall deliver, and hereby represents and
warrants that it has delivered, to the Trustee and the applicable Master
Servicer(s), on or before the Closing Date, a fully executed original
counterpart or copy of each of the Mortgage Loan Purchase Agreements, as in full
force and effect, without amendment or modification, on the Closing Date.

            (f) The Depositor shall use its best efforts to require that,
promptly after the Closing Date, but in all events within three Business Days
after the Closing Date, each of the Mortgage Loan Sellers shall cause all funds
on deposit in escrow accounts maintained with respect to the Loans in the name
of such Mortgage Loan Seller or any other name, to be transferred to the
applicable Master Servicer (or a sub-servicer at the direction of the applicable
Master Servicer) for deposit into Servicing Accounts.

            (g) For purposes of this Section 2.01, and notwithstanding any
contrary provision hereof or of the definition of "Mortgage File," if there
exists with respect to any group of Crossed Loans only one original or certified
copy of any document or instrument described in the definition of "Mortgage
File" which pertains to all of the Crossed Loans in such group of Crossed Loans,
the inclusion of the original or certified copy of such document or instrument
in the Mortgage File for any of such Crossed Loans and the inclusion of a copy
of such original or certified copy in each of the Mortgage Files for the other
Crossed Loans in such group of Crossed Loans shall be deemed the inclusion of
such original or certified copy in the Mortgage Files for each such Crossed
Loan.

            (h) Notwithstanding anything to the contrary in this Agreement, each
Mortgage Loan Purchase Agreement provides that the related Mortgage Loan Seller
shall deliver to the applicable Master Servicer any original letters of credit
relating to the Loans being sold by such Mortgage Loan Seller, and the
applicable Master Servicer shall hold such letters of credit on behalf of the
Trustee.

            (i) Following consummation of the conveyance of the Loans by the
Depositor to the Trustee, the Depositor shall not take any action inconsistent
with the Trust Fund's ownership of the Loans, and if a third party, including a
potential purchaser of the Loans, should inquire, the Depositor shall promptly
indicate that the Loans have been sold and shall claim no ownership interest
therein.

            (j) The Certificate Administrator hereby acknowledges the receipt by
it of the Closing Date Deposit Amount. The Certificate Administrator shall hold
such Closing Date Deposit Amount in the Distribution Account and shall include
the Closing Date Deposit Amount in the Available Distribution Amount for the
first Distribution Date. The Closing Date Deposit Amount shall remain
uninvested.

            Section 2.02 Acceptance by Trustee.

            (a) The Trustee, by the execution and delivery of this Agreement,
acknowledges receipt by it, subject to the provisions of Sections 2.01 and
2.02(d), to any exceptions noted on the Trustee Exception Report, and to the
further review provided for in Section 2.02(b), of the Notes, fully executed
original counterparts of the Mortgage Loan Purchase Agreements, copies of all
Letters of Credit and of all other assets included in the Trust Fund, in good
faith and without notice of any adverse claim, and declares that it holds and
will hold such documents and any other documents delivered or caused to be
delivered by the Mortgage Loan Sellers constituting the Mortgage Files, and that
it holds and will hold such other assets included in the Trust Fund, in trust
for the exclusive use and benefit of all present and future Certificateholders.
All references to the "Mortgage File" herein when used in connection with the
duties or obligations of the Trustee to hold or certify as to such Mortgage
File, shall mean in respect of clause (xvi) of the definition thereof, a copy
thereof. To the extent that the contents of the Mortgage File for any A Loan
relate to a corresponding Junior Loan, the Trustee will also hold such Mortgage
File in trust for the benefit of the related Junior Loan Holder. To the extent
that the contents of the Mortgage File for any A Loan relate to a corresponding
Companion Loan, the Trustee will also hold such Mortgage File in trust for the
benefit of the related Companion Loan Holder. The Trustee or any Custodian
appointed by the Trustee pursuant to Section 8.11 shall have no obligation to
maintain, extend the term of, enforce or otherwise pursue any rights under such
letter of credit which obligation the applicable Master Servicer hereby
undertakes.

            (b) Within 90 days of the Closing Date, the Trustee shall review
and, subject to Sections 2.01 and 2.02(d), certify in writing (substantially in
the form attached hereto as Exhibit O) to each of the Depositor, the Master
Servicers, the Special Servicers and the applicable Mortgage Loan Seller that,
as to each Loan listed in the Mortgage Loan Schedule (other than any Loan paid
in full and any Loan specifically identified in any exception report annexed
thereto as not being covered by such certification), (i) all documents specified
in clauses (i) through (v), (ix) (without regard to the parenthetical clause),
(ix), (xi), (xii), (xvi) and (xviii) of the definition of "Mortgage File" are in
its possession, and (ii) all documents delivered or caused to be delivered by
the applicable Mortgage Loan Seller constituting the related Mortgage File have
been received, appear to have been executed (with the exception of UCC Financing
Statements and assignments thereof), appear to be what they purport to be,
purport to be recorded or filed (if recordation or filing is specified for such
document in the definition of "Mortgage File") and have not been torn, mutilated
or otherwise defaced, and that such documents appear to relate to the Loans
identified on the Mortgage Loan Schedule. Notwithstanding the foregoing, each
Mortgage Loan Seller shall deliver copies or originals of the documents referred
to in clauses (ii), (ix) and (xviii) of the definition of "Mortgage File" to the
Trustee and the original letters of credit referenced in clause (xvi) of the
definition of "Mortgage File" to the applicable Master Servicer (each of which
shall notify the Trustee of the receipt thereof) (with a copy to the Trustee),
each within 30 days after the Closing Date. If such documents are not delivered
within 30 days, the applicable Mortgage Loan Seller shall have an additional 30
days to deliver such document or shall cure such failure in accordance with
Section 2.03.

            (c) The Trustee shall review each of the Loan Documents received on
or about 90 days following the Closing Date, 180 days following the Closing
Date, the first anniversary of the Closing Date, 180 days following the first
anniversary of the Closing Date, 270 days following the first anniversary of the
Closing Date and on the second anniversary of the Closing Date, the Trustee
shall, subject to Sections 2.01 and 2.02(d), certify in writing to each of the
Depositor, the Master Servicers, the Special Servicers and the applicable
Mortgage Loan Seller that, as to each Loan listed on the Mortgage Loan Schedule,
(i) all documents specified in clauses (i) through (v), (ix) (without regard to
the parenthetical clause), (xi), (xii), (xvi) and (xviii) of the definition of
"Mortgage File" are in its possession, (ii) it has received either a recorded
original of each of the assignments specified in clause (iii) and clause (v) of
the definition of "Mortgage File," or, insofar as an unrecorded original thereof
had been delivered or caused to be delivered by the applicable Mortgage Loan
Seller, a copy of such recorded original certified by the applicable public
recording office to be true and complete, and (iii) all such Loan Documents have
been received, have been executed (with the exception of UCC Financing
Statements and assignments thereof), appear to be what they purport to be,
purport to be recorded or filed (if recordation or filing is specified for such
document in the definition of "Mortgage File") and have not been torn, mutilated
or otherwise defaced, and that such documents relate to the Loans identified on
the Mortgage Loan Schedule. The Trustee shall, upon request, provide the
applicable Master Servicer with recording and filing information as to recorded
Mortgages, Assignments of Lease and UCC Financing Statements to the extent that
the Trustee receives them from the related recording and filing offices.

            (d) It is herein acknowledged that the Trustee is not under any duty
or obligation (i) to determine whether any of the documents specified in any of
clauses (vi), (vii), (viii), (x), (xiii) through (xv), (xvii) and (xix) through
(xxi) of the definition of "Mortgage File" exist or are required to be delivered
by the Depositor, a Mortgage Loan Seller or any other Person other than to the
extent identified on the related Mortgage Loan Schedule, (ii) to inspect, review
or examine any of the documents, instruments, certificates or other papers
relating to the Loans delivered to it to determine that the same are valid,
legal, effective, in recordable form, genuine, enforceable, sufficient or
appropriate for the represented purpose or that they are other than what they
purport to be on their face or (iii) to determine whether any omnibus assignment
specified in clause (vii) of the definition of "Mortgage File" is effective
under applicable law. The Trustee may assume for purposes of certification
pursuant to Section 2.02(b), that each Mortgage File should include one state
level UCC Financing Statement filing for each Loan.

            (e) If, in the process of reviewing the Mortgage Files or at any
time thereafter, the Trustee finds that (a) any document required to be included
in the Mortgage File has not been delivered to it within the time required under
the applicable Mortgage Loan Purchase Agreement or (b) such document has not
been properly executed or is otherwise defective on its face (each, a "Defect"
in the related Mortgage File), the Trustee shall promptly so notify the
Depositor, the applicable Master Servicer, the applicable Special Servicer and
the applicable Mortgage Loan Seller (and, solely with respect to any Loan
Combination, the related Companion Loan Holder or Junior Loan Holder(s), as
applicable), by providing a written report (the "Trustee Exception Report")
setting forth for each affected Loan, with particularity, the nature of such
Defect. The Trustee shall not be required to verify the conformity of any
document with the Mortgage Loan Schedule, except that such documents have been
properly executed or received, have been recorded or filed (if recordation is
specified for such document in the definition of "Mortgage File"), appear to be
related to the Loans identified on the Mortgage Loan Schedule, appear to be what
they purport to be, or have not been torn, mutilated or otherwise defaced.

            (f) On each anniversary of the Closing Date until all exceptions
have been eliminated, the Trustee shall deliver an exception report as to any
remaining Defects or required Loan Documents that are not in its possession and
that it was required to review pursuant to Section 2.02(c).

            Section 2.03 Representations, Warranties and Covenants of the
Depositor; Repurchase and Substitution of Loans by the Responsible Parties for
Defects in Mortgage Files, Breaches of Representations and Warranties and Other
Matters.

            (a) The Depositor hereby represents and warrants, as of the Closing
Date, that:

            (i) The Depositor is a corporation duly organized, validly existing
      and in good standing under the laws of the State of Delaware, and the
      Depositor has taken all necessary corporate action to authorize the
      execution, delivery and performance of this Agreement by it, and has the
      power and authority to execute, deliver and perform this Agreement and all
      the transactions contemplated hereby, including, but not limited to, the
      power and authority to sell, assign and transfer the Loans in accordance
      with this Agreement; the Depositor has duly authorized the execution,
      delivery and performance of this Agreement, and has duly executed and
      delivered this Agreement;

            (ii) Assuming the due authorization, execution and delivery of this
      Agreement by each other party hereto, this Agreement and all of the
      obligations of the Depositor hereunder are the legal, valid and binding
      obligations of the Depositor, enforceable against the Depositor in
      accordance with the terms of this Agreement, except as such enforcement
      may be limited by bankruptcy, insolvency, reorganization or other similar
      laws affecting the enforcement of creditors' rights generally, and by
      general principles of equity (regardless of whether such enforceability is
      considered in a proceeding in equity or at law);

            (iii) The execution and delivery of this Agreement and the
      performance of its obligations hereunder by the Depositor will not
      conflict with any provisions of any law or regulations to which the
      Depositor is subject, or conflict with, result in a breach of or
      constitute a default under any of the terms, conditions or provisions of
      the certificate of incorporation or the by-laws of the Depositor or any
      indenture, agreement or instrument to which the Depositor is a party or by
      which it is bound, or any order or decree applicable to the Depositor, or
      result in the creation or imposition of any lien on any of the Depositor's
      assets or property, which would materially and adversely affect the
      ability of the Depositor to carry out the transactions contemplated by
      this Agreement; the Depositor has obtained any consent, approval,
      authorization or order of any court or governmental agency or body
      required for the execution, delivery and performance by the Depositor of
      this Agreement;

            (iv) There is no action, suit or proceeding pending or, to the
      Depositor's knowledge, threatened against the Depositor in any court or by
      or before any other governmental agency or instrumentality which would
      materially and adversely affect the validity of the Loans or the ability
      of the Depositor to carry out the transactions contemplated by this
      Agreement;

            (v) The Depositor's transfer of the Loans to the Trustee as
      contemplated herein is not subject to any bulk transfer or similar law in
      effect in any applicable jurisdiction;

            (vi) The Depositor is not transferring the Loans to the Trustee with
      any intent to hinder, delay or defraud its present or future creditors;

            (vii) The Depositor has been solvent at all relevant times prior to,
      and will not be rendered insolvent by, its transfer of the Loans to the
      Trustee, pursuant to Section 2.01(a);

            (viii) After giving effect to its transfer of the Loans to the
      Trustee, pursuant to Section 2.01(a), the value of the Depositor's assets,
      either taken at their present fair saleable value or at fair valuation,
      will exceed the amount of the Depositor's debts and obligations, including
      contingent and unliquidated debts and obligations of the Depositor, and
      the Depositor will not be left with unreasonably small assets or capital
      with which to engage in and conduct its business;

            (ix) The Depositor does not intend to, and does not believe that it
      will, incur debts or obligations beyond its ability to pay such debts and
      obligations as they mature;

            (x) No proceedings looking toward merger, liquidation, dissolution
      or bankruptcy of the Depositor are pending or contemplated;

            (xi) Immediately prior to the transfer of the Loans to the Trustee
      for the benefit of the Certificateholders pursuant to this Agreement, the
      Depositor had such right, title and interest in and to each Loan as was
      transferred to it by the related Mortgage Loan Seller pursuant to the
      related Mortgage Loan Purchase Agreement;

            (xii) The Depositor has not transferred any of its right, title and
      interest in and to the Loans to any Person other than the Trustee;

            (xiii) The Depositor is transferring all of its right, title and
      interest in and to the Loans to the Trustee for the benefit of the
      Certificateholders free and clear of any and all liens, pledges, charges,
      security interests and other encumbrances created by or through the
      Depositor; and

            (xiv) Except for any actions that are the express responsibility of
      another party hereunder or under any Mortgage Loan Purchase Agreement, and
      further except for actions that the Depositor is expressly permitted to
      complete subsequent to the Closing Date, the Depositor has taken all
      actions required under applicable law to effectuate the transfer of all of
      its right, title and interest in and to the Loans to the Trustee.

            (b) If any Certificateholder, the Directing Certificateholder, any
Master Servicer, any Special Servicer, the Trustee or the Certificate
Administrator discovers or receives notice of a Defect or a breach of any
representation or warranty made, or required to be made, with respect to a Loan
by any Mortgage Loan Seller pursuant to the related Mortgage Loan Purchase
Agreement (a "Breach"), it shall give notice to the applicable Master Servicer,
the applicable Special Servicer, the Trustee and the Certificate Administrator.
If the applicable Master Servicer or the applicable Special Servicer determines
that such Defect or Breach materially and adversely affects the value of any
Loan or REO Loan or the interests of the Holders of any Class of Certificates
(any such Defect or Breach, a "Material Document Defect" or a "Material Breach,"
respectively), it shall give prompt written notice of such Defect or Breach to
the Depositor, the Trustee, the Certificate Administrator, the applicable Master
Servicer, the applicable Special Servicer and the applicable Responsible Party
and shall request that such Responsible Party, not later than 90 days after the
receipt by the applicable Responsible Party of such request (subject to the
second succeeding paragraph, the "Initial Resolution Period"), (i) cure such
Defect or Breach in all material respects, (ii) repurchase the affected Loan (or
the related Mortgage Loan Seller's portion thereof with respect to the Ritz
Carlton Mortgage Loan) at the applicable Purchase Price in conformity with the
related Mortgage Loan Purchase Agreement or (iii) substitute a Qualified
Substitute Mortgage Loan for such affected Loan (provided that in no event shall
such substitution occur later than the second anniversary of the Closing Date)
and pay to the applicable Master Servicer for deposit into the applicable
Collection Account any Substitution Shortfall Amount in connection therewith in
conformity with the related Mortgage Loan Purchase Agreement; provided, however,
that if (i) such Material Document Defect or Material Breach is capable of being
cured, but not within the Initial Resolution Period, (ii) such Material Document
Defect or Material Breach is not related to any Loan's not being a "qualified
mortgage" within the meaning of the REMIC Provisions and (iii) the applicable
Responsible Party has commenced and is diligently proceeding with the cure of
such Material Document Defect or Material Breach within the Initial Resolution
Period, then the applicable Responsible Party shall have an additional 90 days
to cure such Material Document Defect or Material Breach, provided that the
applicable Responsible Party has delivered to the applicable Master Servicer,
the applicable Special Servicer, the Rating Agencies and the Trustee and the
Certificate Administrator an officer's certificate from an officer of the
applicable Responsible Party that describes the reasons that the cure was not
effected within the Initial Resolution Period and the actions that it proposes
to take to effect the cure and that states that it anticipates that the cure
will be effected within the additional 90-day period. In connection with a
repurchase of the 828-850 Madison Avenue Loan, as contemplated by this Section
2.03(b), the 828-850 Madison Avenue Loan REMIC Regular Interest and the 828-850
Madison Avenue Loan REMIC Residual Interest shall also be repurchased from the
Trust Fund. In the case of a substitution for the 828-850 Madison Avenue Loan,
all references in this Agreement to such Loan shall be to the Qualified
Substitute Mortgage Loan substituted therefor; provided, that the Net Mortgage
Rate, Stated Principal Balance and latest possible maturity date of the 828-850
Madison Avenue Loan REMIC Regular Interest shall not be changed. Notwithstanding
the foregoing, if a Loan is not secured by a hotel, restaurant (operated by the
Mortgagor), healthcare facility, nursing home, assisted living facility,
self-storage facility, theatre, mobile home park or fitness center (operated by
the Mortgagor) property, then the failure to deliver to the Trustee copies of
the UCC Financing Statements with respect to such Loan shall not be a Material
Document Defect.

            Notwithstanding the foregoing, if there exists a Breach of any
representation or warranty with respect to a Loan on the part of a Mortgage Loan
Seller set forth in, or made pursuant to, Section 6(a) of the related Mortgage
Loan Purchase Agreement relating to whether or not the Loan Documents or any
particular Loan Document requires the related Borrower to bear the costs and
expenses associated with certain actions as set forth in detail in each Mortgage
Loan Seller's Mortgage Loan Purchase Agreement, then the applicable Responsible
Party shall cure such Breach within the Initial Resolution Period by reimbursing
the Trust Fund by wire transfer to the applicable Collection Account the
reasonable amount of any such costs and expenses incurred by the applicable
Master Servicer, the applicable Special Servicer, the Trustee or the Trust Fund
that are the basis of such Breach and have not been reimbursed by the related
Borrower, provided, however, that in the event any such costs and expenses
exceed $10,000, the applicable Responsible Party shall have the option to either
repurchase such Loan at the applicable Purchase Price or pay such costs and
expenses. Except as provided in the proviso to the immediately preceding
sentence, the applicable Responsible Party shall make such deposit and upon its
making such deposit, the applicable Responsible Party shall be deemed to have
cured such Breach in all respects. Provided such payment is made, the second
preceding sentence describes the sole remedy available to the Certificateholders
and the Trustee on their behalf regarding any such Breach, and the applicable
Responsible Party shall not be obligated to repurchase, substitute or otherwise
cure such Breach under any circumstances.

            The absence of any of the following from a Mortgage File shall be
deemed a Material Document Defect with respect to the related Loan unless cured
as contemplated by Section 2.02(b): (a) the original signed Note, unless the
Mortgage File contains a signed lost note affidavit and indemnity; (b) the
original signed Mortgage, unless there is included in the Mortgage File a
certified copy of the Mortgage as recorded or as sent for recordation with a
certificate stating that the original signed Mortgage was sent for recordation,
or a copy of the Mortgage and the related recording information; (c) the item
called for by clause (ix) of the definition of Mortgage File; (d) any
intervening assignment required to create an effective assignment to the Trustee
on behalf of the Trust, unless there is included in the Mortgage File a
certified copy of the intervening assignment as recorded or as sent for
recordation with a certificate stating that the original intervening assignment
was sent for recordation, or a copy of the intervening assignment and the
related recording information; (e) any required original letter of credit (as
required in the parenthetical exception in the first paragraph of Section
2.01(b)), provided that such Defect may be cured by the provision of a
substitute letter of credit or a cash reserve on behalf of the related Borrower;
or (f) the original or a copy of any required ground lease. Failure to include a
document checklist in a Mortgage File shall in no event constitute a Material
Document Defect.

            Any Defect or Breach which causes any Loan not to be a "qualified
mortgage" (within the meaning of Section 860G(a)(3) of the Code) shall be deemed
a Material Document Defect or Material Breach, as applicable, and the Initial
Resolution Period for the affected Loan shall be 90 days following the earlier
of the related Responsible Party's receipt of notice (pursuant to this Section
2.03(b)) with respect to, and its discovery of, such Defect or Breach (which
period shall not be subject to extension).

            If any Loan is to be repurchased by reason of a Material Breach or a
Material Document Defect with respect thereto, the applicable Master Servicer
shall designate its Collection Account as the account into which funds in the
amount of the Purchase Price are to be deposited by wire transfer.

            With respect to the Ritz Carlton Mortgage Loan, the obligations of
each of BCRE and Column to cure or repurchase with respect to a Material
Document Defect or Material Breach with respect to such Mortgage Loan shall be
limited to a cure or repurchase with respect to the Note it sold to the
Depositor in accordance with the related Mortgage Loan Purchase Agreement. With
respect to the Ritz Carlton Mortgage Loan, any cure by either of BCRE or Column
with respect to the Note it sold to the Depositor in accordance with the related
Mortgage Loan Purchase Agreement that also cures the Material Document Defect or
Material Breach with respect to such Ritz Carlton Mortgage Loan shall satisfy
the cure obligations of both BCRE and Column with respect to such Mortgage Loan.

            If (x) a Loan is to be repurchased or substituted for by reason of a
Material Breach or Material Document Defect with respect thereto, (y) such Loan
is a Crossed Loan and (z) such Material Document Defect or Material Breach does
not otherwise constitute a Material Document Defect or a Material Breach, as the
case may be, as to any related Crossed Loan, then the applicable Defect or
Breach shall be deemed to constitute a Material Document Defect or a Material
Breach as to any related Crossed Loan for purposes of the above provisions, and
the applicable Responsible Party shall be required to repurchase or substitute
for each related Crossed Loan in accordance with the provisions above unless the
Crossed Loan Repurchase Criteria would be satisfied if the applicable
Responsible Party were to repurchase or substitute for only the affected Crossed
Loan as to which a Material Document Defect or Material Breach had occurred
without regard to this paragraph, and in the case of either such repurchase or
substitution, all of the other requirements set forth in this Section 2.03
applicable to a repurchase or substitution, as the case may be, would be
satisfied. In the event that the Crossed Loan Repurchase Criteria would be so
satisfied, the applicable Responsible Party may elect either to repurchase or
substitute for only the affected Crossed Loan as to which the Material Document
Defect or Material Breach exists or to repurchase or substitute for all the
Crossed Loans in the subject Crossed Group. The determination of the applicable
Special Servicer as to whether the Crossed Loan Repurchase Criteria have been
satisfied shall be conclusive and binding in the absence of manifest error. The
applicable Special Servicer will be entitled to cause to be delivered, or direct
the applicable Responsible Party to cause to be delivered, to the applicable
Master Servicer, an Appraisal of any or all of the related Mortgaged Properties
for purposes of determining whether clause (ii) of the definition of Crossed
Loan Repurchase Criteria has been satisfied, in each case at the expense of the
applicable Responsible Party if the scope and cost of the Appraisal is approved
by the applicable Responsible Party (such approval not to be unreasonably
withheld).

            To the extent that a Responsible Party repurchases or substitutes an
affected Crossed Loan in the manner prescribed in the immediately preceding
paragraph above while the Trustee continues to hold any related Crossed Loans,
the related Mortgage Loan Seller and the Depositor have agreed in the Mortgage
Loan Purchase Agreement to modify, upon such repurchase or substitution, the
related Loan Documents in a manner such that such affected Crossed Loan
repurchased or substituted by the related Mortgage Loan Seller, on the one hand,
and any related Crossed Loans held by the Trustee, on the other, would no longer
be cross-defaulted or cross-collateralized with one another; provided that the
applicable Responsible Party shall have furnished the Trustee, at its expense,
with an Opinion of Counsel that such modification shall not cause an Adverse
REMIC Event; provided, further, that if such Opinion cannot be furnished, the
applicable Responsible Party and the Depositor have agreed in the applicable
Mortgage Loan Purchase Agreement that such repurchase or substitution of only
the affected Crossed Loan, notwithstanding anything to the contrary herein,
shall not be permitted and the Responsible Party shall repurchase or substitute
for the affected Crossed Loan and all related Crossed Loans. Any reserve or
other cash collateral or letters of credit securing the Crossed Loans shall be
allocated between such Loans in accordance with the Loan Documents. All other
terms of the Loans shall remain in full force and effect, without any
modification thereof.

            Notwithstanding the foregoing, if there is a Material Breach or
Material Document Defect with respect to one or more Mortgaged Properties (but
not all of the Mortgaged Properties) with respect to a Loan, the applicable
Responsible Party will not be obligated to repurchase or substitute for the Loan
if the affected Mortgaged Property may be released pursuant to the terms of any
partial release provisions in the related Loan Documents and the remaining
Mortgaged Property(ies) satisfy the requirements, if any, set forth in the Loan
Documents and (i) the applicable Responsible Party provides an Opinion of
Counsel to the effect that such partial release would not cause an Adverse REMIC
Event to occur, (ii) such Responsible Party pays (or causes to be paid) the
applicable release price required under the Loan Documents and, to the extent
not covered by such release price, any additional amounts necessary to cover all
reasonable out-of-pocket expenses reasonably incurred by the applicable Master
Servicer, the applicable Special Servicer, the Trustee, the Certificate
Administrator or the Trust Fund and (iii) such cure by release of such Mortgaged
Property is effected within the time periods specified for the cure of a
Material Breach or a Material Document Defect in this Section 2.03(b).

            In connection with any repurchase or substitution of a Loan
contemplated by this Section 2.03, the Trustee, the applicable Master Servicer
and the applicable Special Servicer shall each tender to or at the direction of
the applicable Responsible Party, upon delivery to each of the Trustee, the
applicable Master Servicer and the applicable Special Servicer of a trust
receipt executed by such Responsible Party, all portions of the Mortgage File,
the Servicing File and other documents pertaining to such Loan possessed by it,
and each document that constitutes a part of the related Mortgage File that was
endorsed or assigned to the Trustee, shall be endorsed or assigned, as the case
may be, to such Responsible Party in the same manner as provided in Section 7 of
the related Mortgage Loan Purchase Agreement. The applicable Master Servicer
(or, in the case of a Specially Serviced Loan, the applicable Special Servicer)
shall notify the related Companion Loan Holders and/or Junior Loan Holder(s), as
the case may be, of any repurchase regarding any Loan.

            In connection with a repurchase or substitution of a Loan pursuant
to the first paragraph of this Section 2.03(b), Monthly Payments due with
respect to each Qualified Substitute Mortgage Loan (if any) after the Due Date
in the month of substitution, and Monthly Payments due with respect to each Loan
being repurchased or replaced after the related Due Date in September 2006 and
received by the applicable Master Servicer or Special Servicer on behalf of the
Trust on or prior to the related date of repurchase or substitution, shall be
part of the Trust Fund. Monthly Payments due with respect to each Qualified
Substitute Mortgage Loan (if any) on or prior to the Due Date in the month of
substitution, and Monthly Payments due with respect to each Loan being
repurchased or replaced and received by the applicable Master Servicer or
Special Servicer on behalf of the Trust after the related date of repurchase or
substitution, shall not be part of the Trust Fund and are to be remitted by the
applicable Master Servicer to the applicable Responsible Party promptly
following receipt.

            Section 7 of each of the Mortgage Loan Purchase Agreements and, in
the case of the CSMC Loans, the Column Performance Guarantee provide the sole
remedies available to the Certificateholders, or the Trustee on behalf of the
Certificateholders, respecting any Defect or Breach.

            If the applicable Responsible Party defaults on its obligations to
repurchase any Loan as contemplated by this Section 2.03(b), the Trustee shall
promptly notify the Certificate Administrator, the Certificateholders, the
Rating Agencies, the Swap Counterparty, the applicable Master Servicer and the
applicable Special Servicer of such default. The Trustee shall enforce the
obligations of each Responsible Party under Section 7 of the related Mortgage
Loan Purchase Agreement and/or, if applicable, under the Column Performance
Guarantee. Such enforcement, including, without limitation, the legal
prosecution of claims, shall be carried out in such form, to such extent and at
such time as if it were, in its individual capacity, the owner of the affected
Loan(s). The Trustee shall be reimbursed for the reasonable costs of such
enforcement: first, from a specific recovery of costs, expenses or attorneys'
fees against the defaulting Responsible Party; second, pursuant to Section
3.05(a) out of the related Purchase Price, to the extent that such expenses are
a specific component thereof; and third, if at the conclusion of such
enforcement action it is determined that the amounts described in clauses first
and second are insufficient, then pursuant to Section 3.05(a) out of general
collections on the Loans on deposit in the applicable Collection Account.

            If the applicable Responsible Party incurs any expense in connection
with the curing of a Breach which also constitutes a default under the related
Loan, such Responsible Party shall have a right, and shall be subrogated to the
rights of the Trustee, as successor to the mortgagee, to recover the amount of
such expenses from the related Borrower; provided, however, that such
Responsible Party's rights pursuant to this paragraph shall be junior, subject
and subordinate to the rights of the Trust Fund to recover amounts owed by the
related Borrower under the terms of such Loan, including the rights to recover
unreimbursed Advances, accrued and unpaid interest on Advances at the
Reimbursement Rate and unpaid or unreimbursed expenses of the Trust Fund
allocable to such Loan; and provided, further, that in the event and to the
extent that such expenses of such Responsible Party in connection with any Loan
exceed five percent of the then outstanding principal balance of such Loan, then
such Responsible Party's rights to reimbursement pursuant to this paragraph with
respect to such Loan and such excess expenses shall not be exercised until the
payment in full of such Loan (as such Loan may be amended or modified pursuant
to the terms of this Agreement). Notwithstanding any other provision of this
Agreement to the contrary, no Master Servicer shall have any obligation pursuant
to this Agreement to collect such reimbursable amounts on behalf of such
Responsible Party; provided, however, that the preceding clause shall not
operate to prevent the applicable Master Servicer from using reasonable efforts,
exercised in such Master Servicer's sole discretion, to collect such amounts to
the extent consistent with the Servicing Standard. A Responsible Party may
pursue its rights to reimbursement of such expenses directly against the
Borrower while such Loan is an asset of the Trust Fund, by suit or otherwise, at
the sole cost and expense of such Responsible Party to the extent such costs and
expenses are not recovered from the Borrower; provided that (i) the applicable
Master Servicer or, with respect to a Specially Serviced Loan, the applicable
Special Servicer determines in the exercise of its sole discretion consistent
with the Servicing Standard that such actions by such Responsible Party will not
impair the applicable Master Servicer's and/or the applicable Special Servicer's
collection or recovery of principal, interest and other sums due with respect to
the subject Loan, Companion Loan and any related Junior Loan, which would
otherwise be payable to the applicable Master Servicer, the applicable Special
Servicer, the Trustee, the Certificateholders, the related Companion Loan Holder
and any related Junior Loan Holder pursuant to the terms of this Agreement, (ii)
such actions will not include an involuntary bankruptcy, receivership or
insolvency proceeding against the Borrower, (iii) such actions will not include
the foreclosure or enforcement of any lien or security interest under the
related Mortgage or other Loan Documents and (iv) such actions will not result
in the imposition of an additional lien against the Mortgaged Property.

            Section 2.04 Issuance of Uncertificated Lower-Tier Interests;
Execution of Certificates.

            Subject to Sections 2.01 and 2.02, the Trustee hereby acknowledges
the assignment to it of the Loans, the 828-850 Madison Avenue Loan REMIC Regular
Interest and the 828-850 Madison Avenue Loan REMIC Residual Interest and the
delivery of the Mortgage Files and fully executed original counterparts of the
Mortgage Loan Purchase Agreements, together with the assignment to it of all
other assets included in the Trust Fund. Concurrently with such assignment and
delivery, the Trustee (i) hereby declares that it holds the Loans (other than
the 828-850 Madison Avenue Loan), the 828-850 Madison Avenue Loan REMIC Regular
Interest, exclusive of Excess Interest and Broker Strip Interest thereon, on
behalf of the Lower-Tier REMIC and the Holders of the Certificates, (ii)
acknowledges the issuance of the Uncertificated Lower-Tier Interests (together
with the residual interest in the Lower-Tier REMIC, which will be evidenced by
the Class R Certificates), in exchange for the Loans (other than the 828-850
Madison Avenue Loan), exclusive of Broker Strip Interest and Excess Interest
thereon, and the 828-850 Madison Avenue Loan REMIC Regular Interests receipt of
which is hereby acknowledged, and (iii) pursuant to the written request of the
Depositor executed by an officer of the Depositor, acknowledges that (A) it has
executed and caused the Certificate Registrar to authenticate and to deliver to
or upon the order of the Depositor, in exchange for the Uncertificated
Lower-Tier Interests, the Regular Certificates (other than the Class A-4FL
Certificates) and the Class A-4FL Regular Interest and the Class R Certificates
(in respect of the residual interest in the Upper-Tier REMIC), (B) it has
executed and caused the Certificate Registrar to authenticate and to deliver to
or upon the order of the Depositor, in exchange for the Excess Interest, the
Class V Certificates, and the Depositor hereby acknowledges the receipt by it or
its designees, of all such Certificates, (C) it has executed and caused the
Certificate Registrar to authenticate and to deliver to or upon the order of the
Depositor, in exchange for the 828-850 Madison Avenue REMIC Residual Interest,
the Class R Certificates, and (D) it has executed and caused the Certificate
Registrar to authenticate and to deliver to or upon the order of the Depositor,
in exchange for the Class A-4FL Regular Interest and the Swap Agreement, the
Class A-4FL Certificates and the Depositor hereby acknowledges the receipt by it
or its designees, of all such Certificates.

                                  ARTICLE III

                 ADMINISTRATION AND SERVICING OF THE TRUST FUND

            Section 3.01 General Servicing Matters.

            (a) Master Servicer No. 1, Master Servicer No. 2 and each of the
Special Servicers shall diligently service and administer the Loans (and if a
Loan is part of a Serviced Loan Combination, the related Companion Loan and
Junior Loan(s), if any) (and, in the case of a Special Servicer, any related REO
Properties) that it is obligated to service and administer pursuant to this
Agreement on behalf of the Trustee and in the best interests of and for the
benefit of the Certificateholders (and, in the case of a Serviced Loan
Combination, the related Companion Loan Holders and Junior Loan Holder(s), if
any, taken as a collective whole, taking into consideration the subordinate
nature of the Junior Loans and the pari passu nature of the Companion Loan), as
determined by such Master Servicer or such Special Servicer, as the case may be,
in its reasonable judgment, in accordance with applicable law, the terms of this
Agreement, the terms of the respective Loans (and, if a Loan is part of a
Serviced Loan Combination, the terms of the related Companion Loan and Junior
Loan(s), if any), and any related intercreditor, co-lender and/or similar
agreement(s) and, to the extent consistent with the foregoing, further as
follows (the "Servicing Standard"):

            (i) (a) the same manner in which, and with the same care, skill,
      prudence and diligence with which the applicable Master Servicer No. 1 or
      Master Servicer No. 2 or Special Servicer, as the case may be, services
      and administers similar mortgage loans for other third party portfolios,
      giving due consideration to the customary and usual standards of practice
      of prudent institutional commercial and multifamily mortgage loan
      servicers servicing mortgage loans for third parties, and (b) the same
      care, skill, prudence and diligence with which the applicable Master
      Servicer or Special Servicer, as the case may be, services and administers
      commercial and multifamily mortgage loans owned by it, whichever is
      higher;

            (ii) with a view to the timely collection of all scheduled payments
      of principal and interest under the Loans and Companion Loans and, in the
      case of the Special Servicer, if a Loan comes into and continues in
      default and if, in the judgment of the applicable Special Servicer, no
      satisfactory arrangements can be made for the collection of the delinquent
      payments, the maximization of the recovery on that Loan to the
      Certificateholders (as a collective whole) or, in the case of a Serviced
      Loan Combination or CBA A/B Loan Pair, for the benefit of the
      Certificateholders and the holder(s) of the related Companion Loan(s) and
      /or Junior Loans (as a collective whole), on a net present value basis;
      but

            (iii) without regard to--

                              (A) any relationship that the applicable Master
                        Servicer or Special Servicer, as the case may be, or any
                        Affiliate thereof may have with the related Borrower,
                        any Mortgage Loan Seller or any other party to this
                        Agreement,

                              (B) the ownership of any Certificate, mezzanine
                        loan or any Junior Loan by the applicable Master
                        Servicer or Special Servicer, as the case may be, or by
                        any Affiliate thereof,

                              (C) the applicable Master Servicer's obligation to
                        make Advances,

                              (D) the applicable Special Servicer's obligation
                        to request that the applicable Master Servicer make
                        Servicing Advances,

                              (E) the right of the applicable Master Servicer
                        (or any Affiliate thereof) or the applicable Special
                        Servicer (or any Affiliate thereof), as the case may be,
                        to receive reimbursement of costs, or the sufficiency of
                        any compensation payable to it, or with respect to any
                        particular transaction,

                              (F) the ownership, servicing or management for
                        others of any other mortgage loans or mortgaged
                        properties by the applicable Master Servicer or Special
                        Servicer, as the case may be, or any Affiliate thereof,
                        as applicable,

                              (G) any obligation of the applicable Master
                        Servicer or any of its Affiliates (in their capacity as
                        a Responsible Party, if applicable) to cure a breach of
                        a representation or warranty or repurchase the mortgage
                        loan, or

                              (H) any debt that the applicable Master Servicer
                        or Special Servicer, as the case may be, or any
                        Affiliate thereof has extended to any Borrower.

            (b) Without limiting the foregoing, subject to Section 3.21, (i)
Master Servicer No. 1 shall be obligated to service and administer all Group A
Loans and any related Companion Loans or Junior Loans which, in each case, do
not constitute Specially Serviced Loans, (ii) Master Servicer No. 2 shall be
obligated to service and administer all Group B Loans which, in each case, do
not constitute Specially Serviced Loans, (iii) Special Servicer No. 1 shall be
obligated to service and administer all Group A Loans and any related Companion
Loans or Junior Loans as to which a Servicing Transfer Event has occurred and is
continuing (each, a "Specially Serviced Loan") and any REO Property acquired in
respect of any such Loan or Junior Loan, and (iv) Special Servicer No. 2 shall
be obligated to service and administer all Group B Loans and any related
Companion Loans or Junior Loans as to which a Servicing Transfer Event has
occurred and is continuing (also a "Specially Serviced Loan") and any REO
Property acquired in respect of any such Loan. Notwithstanding the foregoing,
each Master Servicer shall continue to make all calculations, and prepare, and
deliver to the Certificate Administrator, all reports required to be prepared by
such Master Servicer hereunder with respect to the Loans and/or Junior Loans for
which it is the applicable Master Servicer and that constitute Specially
Serviced Loans as if no Servicing Transfer Event had occurred and with respect
to the REO Properties (and the related REO Loans) related to such Loans and/or
Junior Loans as if no REO Acquisition had occurred, and to render such
incidental services with respect to such Specially Serviced Loans and REO
Properties as are specifically provided for herein; provided, however, that such
Master Servicer shall not be liable for failure to comply with such duties
insofar as such failure results from a failure of the applicable Special
Servicer to provide information to such Master Servicer that is sufficient for
such Master Servicer to comply with such duties or from a failure of the
applicable Special Servicer to prepare and deliver to such Master Servicer
reports required hereunder to be delivered by such Special Servicer to such
Master Servicer. Each Loan and Junior Loan that becomes a Specially Serviced
Loan shall continue as such until satisfaction of the conditions specified in
Section 3.21(a).

            (c) Subject only to the Servicing Standard and the terms of this
Agreement and of the respective Loans (and, in the case of a Serviced Loan
Combination, the terms of the related Companion Loans and Junior Loan(s), if
any, and the related Intercreditor Agreement), each Master Servicer and, with
respect to the Specially Serviced Loans, each Special Servicer each shall have
full power and authority, acting alone, to do or cause to be done any and all
things in connection with such servicing and administration which it may deem
necessary or desirable. Without limiting the generality of the foregoing, each
of the Master Servicers and Special Servicers, in its own name, is hereby
authorized and empowered by the Trustee and obligated to execute and deliver, on
behalf of the Certificateholders, the Junior Loan Holders and the Trustee or any
of them, with respect to each Loan or Junior Loan it is obligated to service
under this Agreement, any and all UCC Financing Statements, continuation
statements and other documents or instruments necessary to maintain the lien
created by the related Mortgage or other security document in the related
Mortgage File on the related Mortgaged Property and related collateral; subject
to Section 3.20, any and all modifications, waivers, amendments or consents to
or with respect to any documents contained in the related Mortgage File; and any
and all instruments of satisfaction or cancellation, or of partial or full
release or discharge, and all other comparable instruments. Subject to Section
3.10, the Trustee shall execute and furnish to each Master Servicer and Special
Servicer any limited powers of attorney and other documents prepared by such
Master Servicer or Special Servicer, as the case may be, necessary or
appropriate to enable such Master Servicer or Special Servicer, as the case may
be, to carry out its servicing and administrative duties hereunder; provided,
however, that the Trustee shall not be held liable for any negligence with
respect to, or misuse of, any such power of attorney by any Master Servicer or
Special Servicer; provided, further, notwithstanding anything contained herein
to the contrary, none of the Master Servicers and Special Servicers shall,
without the Trustee's written consent: (i) initiate any action, suit or
proceeding solely under the Trustee's name without indicating such Master
Servicer's or Special Servicer's, as applicable, representative capacity; or
(ii) take any action with the intent to cause, and that actually causes, the
Trustee to be registered to do business in any state.

            (d) Reserved.

            (e) The relationship of each Master Servicer and each Special
Servicer to the Trustee and the Certificate Administrator and, unless they are
the same Person, one another (whether between a Master Servicer and another
Master Servicer or a Special Servicer and the other Special Servicer or a Master
Servicer and a Special Servicer) under this Agreement is intended by the parties
to be that of an independent contractor and not that of a joint venturer,
partner or, except as specifically set forth herein, agent.

            (f) Pursuant to the related Intercreditor Agreements, the Companion
Loan Holder has agreed that the applicable Master Servicer and the applicable
Special Servicer are authorized and obligated to service and administer the
Companion Loan pursuant to this Agreement. Notwithstanding anything herein to
the contrary, the parties hereto acknowledge and agree that the applicable
Master Servicer's obligations and responsibilities hereunder and such Master
Servicer's authority with respect to the 280 Park Avenue Loan are limited by and
subject to the terms of the 280 Park Avenue Intercreditor Agreement. The
applicable Master Servicer (or, if the 280 Park Avenue Loan becomes a Specially
Serviced Loan, the applicable Special Servicer) shall use reasonable efforts
consistent with the Servicing Standards to enforce the rights of the Trust Fund
(as holder of the 280 Park Avenue Loan) under the 280 Park Avenue Intercreditor
Agreement.

            (g) Pursuant to the related Intercreditor Agreement, each Junior
Loan Holder has agreed that the applicable Master Servicer and the applicable
Special Servicer are authorized and obligated to service and administer the
subject Junior Loan pursuant to this Agreement. The applicable Master Servicer
shall be entitled, during any period when any Junior Loan of a Serviced Loan
Combination does not constitute a Specially Serviced Loan, to exercise the
rights and powers granted under the corresponding Intercreditor Agreement(s) to
the holder of the applicable Loan or to any servicer appointed thereby or acting
on its behalf, subject to the limitations of such Intercreditor Agreement and to
the rights and powers of the related Junior Loan Holder(s), if any, under such
Intercreditor Agreement.

            (h) In the event that a CBA A/B Material Default occurs with respect
to any CBA A/B Loan Pair, and for so long as such CBA A/B Material Default shall
be continuing, the applicable Master Servicer and/or the applicable Special
Servicer, as applicable, shall be obligated to service, subject to the terms and
conditions of the related CBA A/B Intercreditor Agreement, the related CBA B
Loan, on behalf of the related Junior Loan Holder, and all references herein to
"Junior Loan" (and, if the related A Loan is a Specially Serviced Loan, all
references herein to "Specially Serviced Loan"), other than provisions
pertaining to the making of Advances, shall include such CBA B Loan.

            Section 3.02 Collection of Loan Payments.

            (a) The applicable Master Servicer and the applicable Special
Servicer shall make reasonable efforts to collect all payments called for under
the terms and provisions of the Loans (and any Serviced Loan Combination(s)) it
is obligated to service hereunder, and shall follow such collection procedures
as are consistent with this Agreement (including, without limitation, the
Servicing Standard). Consistent with the foregoing, the applicable Master
Servicer or applicable Special Servicer may in its discretion waive any Penalty
Charge in connection with any delinquent payment on a Loan (or a Serviced Loan
Combination) it is obligated to service hereunder.

            (b) All amounts collected on any Loan, Companion Loan or Junior
Loan, including payments from Borrowers, Insurance and Condemnation Proceeds or
Liquidation Proceeds shall be applied to amounts due and owing under the related
Note and Mortgage (including any modifications to either of them) in accordance
with the express provisions of such Note and Mortgage (unless a payment default
exists thereunder and the related Note and Mortgage permit application in the
order and priority determined by the lender) and, in the absence of such express
provisions (and, in the case of each related Junior Loan or Companion Loan of
any Serviced Loan Combination, subject to the terms of the related Intercreditor
Agreement(s)), shall be applied (after payment to the applicable Master
Servicer, the holder of the related Excess Servicing Strip, any related Primary
Servicer, any related Broker Strip Payee, the applicable Special Servicer,
and/or the Trustee for any related Master Servicing Fees (net of the related
Excess Servicing Strip), Excess Servicing Strip, Primary Servicing Fees, Broker
Strip Interest, Special Servicing Fees and Trustee Fees, the application to any
related outstanding P&I Advances and/or Servicing Advances, application to
recoveries of Nonrecoverable Advances and interest thereon or Workout-Delayed
Reimbursement Amounts and interest thereon (in each case, that were paid from
principal collections on the Loans and resulted in principal distributed to the
Certificateholders being reduced), and payment of interest on all such Advances
from such Loan or Companion Loan): first, as a recovery of accrued and unpaid
interest on such Loan, Companion Loan or Junior Loan, as the case may be, at the
related Mortgage Rate (less portions thereof payable to the applicable Master
Servicer, the holder of the related Excess Servicing Strip, the Broker Strip
Payees, the applicable Special Servicer, the Trustee, or, if applicable, the
related Primary Servicer) in effect from time to time to but not including the
Due Date in the Due Period of receipt; second, as a recovery of principal of
such Loan, Companion Loan or Junior Loan, as the case may be; third, to the
payment of Yield Maintenance Charges and Static Prepayment Premiums; and fourth,
any other amounts due and owing under such Loan, Companion Loan or Junior Loan,
as the case may be (the application to such other amounts to be made in the
discretion of the applicable Master Servicer (exercised in accordance with the
Servicing Standard)). Notwithstanding the terms of any Loan, Companion Loan or
Junior Loan, the applicable Master Servicer shall not be entitled to the payment
of any Penalty Charge in excess of outstanding interest on Advances made with
respect to such Loan or Junior Loan under Section 3.11(a), until and except to
the extent that (i) all reserves required to be established with such Master
Servicer and then required to be funded pursuant to the terms of such Loan,
Companion Loan or Junior Loan have been so funded, (ii) all payments of
principal and interest then due on such Loan, Companion Loan or Junior Loan have
been paid and (iii) all related operating expenses, if applicable, have been
paid to the related Lock-Box or reserved for pursuant to the related Lock-Box
Agreement. In no event shall any collections on any ARD Loan be allocated to the
payment of Excess Interest until all principal and interest (other than Excess
Interest) due, or to become due, under such ARD Loan have been paid in full and
any Advances related to such ARD Loan (together with interest thereon) are
reimbursed. Amounts collected on any REO Loan shall be deemed to be applied in
accordance with the definition thereof.

            (c) Notwithstanding anything herein to the contrary, the parties
hereto acknowledge and agree that Master Servicer No. 1's obligations and
responsibilities hereunder and such Master Servicer's authority with respect to
the 280 Park Avenue Loan are limited by and subject to the terms of the 280 Park
Avenue Intercreditor Agreement. Master Servicer No. 1 (or, if the 280 Park
Avenue Loan becomes a Specially Serviced Loan, Special Servicer No. 1) shall use
reasonable efforts consistent with the Servicing Standard to enforce the rights
of the Trust Fund (as holder of the 280 Park Avenue Loan) under the 280 Park
Avenue Intercreditor Agreement. In addition to any specific requirements set
forth herein or in the 280 Park Avenue Intercreditor Agreement, Master Servicer
No. 1 shall cooperate with reasonable information requests made by a servicer of
a securitization containing the Companion Loan.

            (d) If the applicable Master Servicer or the applicable Special
Servicer receives, or receives notice from the related Borrower that it will be
receiving, Excess Interest in any Due Period, such Master Servicer or such
Special Servicer, as applicable, shall, to the extent Excess Interest is not
otherwise reported on the CMSA Loan Periodic Update File, promptly notify the
Certificate Administrator in writing.

            (e) Subject to Section 3.20, none of the Master Servicers shall
accept a Principal Prepayment of any Loan by the related Borrower on any date
other than a Due Date if accepting such payment would cause a Prepayment
Interest Shortfall, unless the Borrower is permitted to make such prepayment
pursuant to the terms of the related Loan Documents, the prepayment results from
a payment of insurance proceeds or condemnation proceeds or the prepayment must
be accepted under applicable law or court order. If a Master Servicer accepts a
Principal Prepayment by the Borrower of any Loan for which such Master Servicer
is the applicable Master Servicer on any date other than a Due Date thereby
causing a Prepayment Interest Shortfall (other than any such Principal
Prepayment that occurred in respect of (i) a Specially Serviced Loan, (ii) a
payment of insurance proceeds or condemnation proceeds, (iii) a payment
subsequent to a default under the related Loan Documents (provided that such
Master Servicer reasonably believes that acceptance of such payment is
consistent with the Servicing Standard and such Master Servicer has obtained the
consent of the applicable Special Servicer), (iv) a payment pursuant to
applicable law or court order, (v) a payment the related Borrower is permitted
to make under the terms of the related Loan Documents or (vi) a payment accepted
by such Master Servicer at the request of or with the consent of the Directing
Certificateholder), such Master Servicer shall remit to the Certificate
Administrator on or before 1:00 p.m., New York City time, on the related Master
Servicer Remittance Date for deposit in the Distribution Account, an amount
equal to the amount of such resulting Prepayment Interest Shortfall. In
addition, if an Uncovered Prepayment Interest Shortfall occurs in respect of any
Loan during any Due Period, and if the applicable Master Servicer in respect of
such Loan receives any Prepayment Interest Excesses during that same Due Period
in respect of other Loans as to which such Master Servicer is the applicable
Master Servicer, then such Prepayment Interest Excesses shall be applied to
offset such Uncovered Prepayment Interest Shortfall to the maximum extent
possible and shall not be available as Additional Servicing Compensation.
Notwithstanding the foregoing, (i) no other compensation payable to a Master
Servicer shall be available to cover Prepayment Interest Shortfalls, (ii) a
Master Servicer's obligation to make payments to cover Prepayment Interest
Shortfalls in respect of a particular Due Period shall not carry over to any
subsequent Due Period, and (iii) no Master Servicer shall be obligated pursuant
to this Section 3.02(e), to make any payment, or apply Prepayment Interest
Excesses received on Loans for which it is the applicable Master Servicer, to
cover or offset a Prepayment Interest Shortfall on a Loan as to which it is not
the applicable Master Servicer.

            Section 3.03 Collection of Taxes, Assessments and Similar Items;
Servicing Accounts.

            (a) Each Master Servicer shall establish and maintain one or more
accounts (the "Servicing Accounts"), into which all Escrow Payments received by
it with respect to the Loans and/or Junior Loans for which it is the applicable
Master Servicer shall be deposited and retained, and shall administer such
Servicing Accounts in accordance with the related Loan Documents and the terms
of any related Intercreditor Agreement. Each Servicing Account shall be
maintained in accordance, or not inconsistent, with the requirements of the
related Loan, Companion Loan or Junior Loan and in accordance with the Servicing
Standard in an Eligible Account. Funds on deposit in the Servicing Accounts may
be invested in Permitted Investments in accordance with the provisions of
Section 3.06. Withdrawals of amounts so deposited from a Servicing Account may
be made only to: (i) effect payment of real estate taxes, assessments, Insurance
Policy premiums, ground rents (if applicable) and other items for which funds
have been escrowed in the Servicing Accounts; (ii) reimburse the applicable
Master Servicer or the Trustee for any Servicing Advances and interest thereon;
(iii) refund to Borrowers any sums as may be determined to be overages; (iv) pay
interest to Borrowers on balances in the Servicing Account, if required by
applicable law or the terms of the related Loan Documents and as described below
or, if not so required, to the applicable Master Servicer pursuant to clause
(vii) below; (v) withdraw amounts deposited in error; (vi) clear and terminate
the Servicing Accounts at the termination of this Agreement in accordance with
Section 9.01; (vii) pay the applicable Master Servicer, as Additional Servicing
Compensation in accordance with Section 3.11(a), interest and investment income
earned in respect of amounts relating to the Trust Fund held in the Servicing
Accounts maintained by such Master Servicer as provided in Section 3.06(b) (but
only to the extent of the Net Investment Earnings with respect to the Servicing
Accounts maintained by such Master Servicer for the relevant period and to the
extent not required by law or the terms of the related Loan Documents to be paid
to the Borrowers); and (viii) following a default on the related Loan or
Serviced Loan Combination, for application to amounts due thereunder (to the
extent permitted by the related Loan Documents and applicable law).

            (b) The applicable Special Servicer, in the case of REO Properties,
and the applicable Master Servicer, in the case of Loans and Junior Loans that
do not constitute REO Loans, shall maintain accurate records with respect to
each related REO Property or Mortgaged Property, as applicable, reflecting the
status of real estate taxes, assessments and other similar items that are or may
become a lien thereon (including related penalty or interest charges) and the
status of Insurance Policy premiums and any ground rents payable in respect
thereof and the status of any letters of credit. The applicable Special
Servicer, in the case of REO Properties, and the applicable Master Servicer, in
the case of Loans and Junior Loans that do not constitute REO Loans, shall
obtain all bills for the payment of such items (including renewal premiums) and
shall effect payment thereof from the related REO Account or Servicing Account,
as applicable, and, if such amounts are insufficient to pay such items in full,
the applicable Master Servicer shall make a Servicing Advance prior to the
applicable penalty or termination date, as allowed under the terms of the
related Loan Documents and, in any event, consistent with the Servicing
Standard. Notwithstanding anything to the contrary in the preceding sentence,
with respect to Loans and Junior Loans that do not provide for escrows for the
payment of taxes and assessments, the applicable Master Servicer shall make a
Servicing Advance for the payment of such items upon the earlier of (i) five
Business Days after such Master Servicer has received confirmation that such
item has not been paid and (ii) the earlier of (A) 30 days after the date such
payments first become due and (B) five Business Days before the scheduled date
of foreclosure of any lien arising from nonpayment of such items. In no event
shall any Master Servicer or Special Servicer be required to make any such
Servicing Advance that would, if made, be a Nonrecoverable Servicing Advance. To
the extent that a Loan or Serviced Loan Combination does not require a Borrower
to escrow for the payment of real estate taxes, assessments, Insurance Policy
premiums, ground rents (if applicable) and similar items, the applicable Special
Servicer, in the case of REO Properties, and the applicable Master Servicer, in
the case of all Loans and Junior Loans that do not constitute REO Loans shall
use reasonable efforts consistent with the Servicing Standard to require that
payments in respect of such items be made by the Borrower at the time they first
become due.

            (c) In accordance with the Servicing Standard and for all Loans and
Junior Loans (other than with respect to any such Loan or Junior Loan after the
related principal balance thereof has been reduced to zero) for which it is the
applicable Master Servicer, each Master Servicer shall make a Servicing Advance
with respect to each related Mortgaged Property (including any REO Property) of
all such funds as are necessary for the purpose of effecting the payment of
(without duplication) (i) ground rents (if applicable), (ii) premiums on
Insurance Policies, (iii) operating, leasing, managing and liquidation expenses
for REO Properties, (iv) environmental inspections, (v) real estate taxes,
assessments and other similar items that are or may become a lien thereon, (vi)
the costs and expenses (including attorneys' fees and expenses) of any
enforcement or judicial proceedings, including foreclosure and similar
proceedings, and (vii) any other amount specifically required to be paid as a
Servicing Advance hereunder, if and to the extent monies in the Servicing
Accounts are insufficient to pay such item when due and the related Borrower has
failed to pay such item on a timely basis, provided that such Master Servicer
shall not be required to make any such Advance that would, if made, constitute a
Nonrecoverable Servicing Advance.

            With respect to each Specially Serviced Loan and Specially Serviced
Junior Loan and each related REO Property, the applicable Special Servicer shall
give the applicable Master Servicer and the Trustee not less than five Business
Days' notice before the date on which such Master Servicer is required to make
any Servicing Advance with respect to such Loan or Junior Loan or any related
REO Property; provided, however, that only two Business Days' notice shall be
required in respect of Servicing Advances required to be made on an urgent or
emergency basis; provided, further, that no Special Servicer shall be entitled
to make such a request (other than for Servicing Advances required to be made on
an urgent or emergency basis) to any single Master Servicer more frequently than
once per calendar month (although such request may relate to more than one
Servicing Advance). The applicable Master Servicer may pay the aggregate amount
of such Servicing Advances listed on a monthly request to the applicable Special
Servicer, in which case such Special Servicer shall remit such Servicing
Advances to the ultimate payees. In addition, the applicable Special Servicer
shall provide the applicable Master Servicer and the Trustee with any
information in its possession (including any information that such Master
Servicer or the Trustee, as applicable, may reasonably request) to enable such
Master Servicer or the Trustee, as applicable, to determine whether a requested
Servicing Advance would constitute a Nonrecoverable Servicing Advance. Any
request by a Special Servicer that a Master Servicer make a Servicing Advance
shall be deemed to be a determination by such Special Servicer that such
requested Servicing Advance is not a Nonrecoverable Servicing Advance, and the
applicable Master Servicer shall be entitled to conclusively rely on such
determination, provided that such determination shall not be binding upon such
Master Servicer. On the fourth Business Day before each Distribution Date, each
Special Servicer shall report to the applicable Master Servicer such Special
Servicer's determination as to whether any Servicing Advance previously made by
such Master Servicer with respect to a Specially Serviced Loan or REO Property
for which such Special Servicer is the applicable Special Servicer is a
Nonrecoverable Servicing Advance. Such Master Servicer shall be entitled to
conclusively rely on such a determination, provided that such determination
shall not be binding upon such Master Servicer.

            Notwithstanding anything to the contrary set forth herein, the
applicable Master Servicer may (or shall, at the direction of the applicable
Special Servicer if a Specially Serviced Loan or an REO Property is involved)
pay directly out of such Master Servicer's Collection Account any servicing
expense that, if paid by such Master Servicer or the applicable Special
Servicer, would constitute a Nonrecoverable Servicing Advance; provided that
such payment shall be made only if such Master Servicer (or the applicable
Special Servicer, if a Specially Serviced Loan is involved) has determined in
accordance with the Servicing Standard that making such payment is in the best
interests of the Certificateholders (as a collective whole) (and in the case of
any Companion Loan or Junior Loan, the related Companion Loan Holder or Junior
Loan Holder, as applicable, taken as a collective whole, taking into
consideration the subordinate nature of the Junior Loan), as evidenced by an
Officer's Certificate delivered promptly to the Trustee and the Directing
Certificateholder (and, in the case of a Significant Loan, the Rating Agencies),
setting forth the basis for such determination and accompanied by any
information that the applicable Master Servicer or the applicable Special
Servicer may have obtained that supports such determination.

            All such Servicing Advances and interest thereon shall be
reimbursable in the first instance from related collections from the Borrowers
and further as provided in Section 3.05. No costs incurred by a Master Servicer
or a Special Servicer in effecting the payment of real estate taxes, assessments
and, if applicable, ground rents on or in respect of the Mortgaged Properties
shall, for purposes of calculating monthly distributions to Certificateholders,
be added to the unpaid principal balances of the related Loans, notwithstanding
that the terms of such Loans so permit. If the applicable Master Servicer fails
to make any required Servicing Advance as and when due to the extent a
Responsible Officer of the Trustee has been notified of such failure in writing
by such Master Servicer, the applicable Special Servicer or the Depositor or a
Responsible Officer of the Trustee otherwise has actual knowledge of such
failure, then the Trustee shall make such Servicing Advance pursuant to Section
7.05.

            (d) In connection with its recovery of any Servicing Advance out of
a Collection Account pursuant to Section 3.05(a) or from a Servicing Account
pursuant to Section 3.03(a), the applicable Master Servicer or the Trustee, as
the case may be, shall be entitled to receive, out of any amounts then on
deposit in such Collection Account, interest at the Reimbursement Rate in effect
from time to time, accrued on the amount of such Servicing Advance from and
including the date made to, but not including, the date of reimbursement.
Subject to Section 3.19(e), each Master Servicer shall reimburse itself or the
Trustee, as the case may be, for any outstanding Servicing Advance made by such
Master Servicer or the Trustee, as the case may be, in respect of the Servicing
Group for which such Master Servicer is the applicable Master Servicer as soon
as practically possible after funds available for such purpose are deposited in
the applicable account maintained hereunder.

            (e) To the extent an operations and maintenance plan is required to
be established and executed pursuant to the terms of a Loan or Junior Loan, the
applicable Master Servicer or, if such Loan or Junior Loan constitutes a
Specially Serviced Loan, the applicable Special Servicer, shall request from the
Borrower written confirmation thereof within a reasonable time after the later
of the Closing Date and the date as of which such plan is required to be
established or completed. To the extent any repairs, capital improvements,
actions or remediations are required to have been taken or completed pursuant to
the terms of a Loan or Junior Loan, the applicable Master Servicer or, if such
Loan or Junior Loan constitutes a Specially Serviced Loan, the applicable
Special Servicer shall request from the Borrower written confirmation of such
actions and remediations within a reasonable time after the later of the Closing
Date and the date as of which such action or remediations are required to be or
to have been taken or completed. To the extent a Borrower fails to promptly
respond to any inquiry described in this Section 3.03(e), the applicable Master
Servicer (with respect to Loans and Junior Loans that are not Specially Serviced
Loans) shall determine whether the related Borrower has failed to perform its
obligations under the respective Loan or Junior Loan and (to the extent such
failure is not otherwise reported by such Master Servicer on any of the files or
reports comprising the CMSA Investor Reporting Package) report any such failure
to the applicable Special Servicer within a reasonable time after the date as of
which such operations and maintenance plan is required to be established or
executed or the date as of which such actions or remediations are required to be
or to have been taken or completed.

            Section 3.04 The Collection Accounts, Distribution Account and
Grantor Trust Distribution Account.

            (a) Each Master Servicer shall establish and maintain, or cause to
be established and maintained, a Collection Account, into which such Master
Servicer shall deposit or cause to be deposited on a daily basis (and in no
event later than the second Business Day following receipt of available funds),
except as otherwise specifically provided herein, the following payments and
collections on the Loans, Companion Loan and Junior Loans (if any) for which it
is the applicable Master Servicer received after the Cut-off Date (other than
payments of principal and interest due and payable on or before the Cut-off
Date) and the following payments and collections on the Loans, Companion Loan
and Junior Loans (if any) for which it is the applicable Master Servicer
received on or prior to the Cut-off Date but allocable to a period subsequent
thereto:

            (i) all payments on account of principal, including Principal
      Prepayments, on such Loans, Companion Loan and Junior Loans; and

            (ii) all payments on account of interest (net of any related Primary
      Servicing Fees and, in the case of a Loan, the related Master Servicing
      Fees) on such Loans, Companion Loan and Junior Loans and any Penalty
      Charges collected thereon (net of any amount thereof utilized to offset
      interest on Advances); and

            (iii) all Yield Maintenance Charges and all Static Prepayment
      Premiums received with respect to such Loans, Companion Loan and Junior
      Loans;

            (iv) all Insurance and Condemnation Proceeds and Liquidation
      Proceeds received in respect of any such Loan, Companion Loan or Junior
      Loan (other than Liquidation Proceeds that are to be deposited in the
      Distribution Account pursuant to Section 9.01) together with any amounts
      representing recoveries of Workout-Delayed Reimbursement Amounts or
      Nonrecoverable Advances in respect of such Loans; and

            (v) any amounts required to be transferred from (A) any REO Account
      pursuant to Section 3.16(c), and (B) any Junior Loan Custodial Account or
      Companion Loan Custodial Account pursuant to any applicable provision of
      this Agreement, and

            (vi) any amounts required to be deposited by such Master Servicer
      pursuant to Section 3.06 in connection with losses incurred with respect
      to Permitted Investments of funds held in such Collection Account; and

            (vii) any amounts required to be deposited by such Master Servicer
      or a Special Servicer pursuant to Section 3.07(b) in connection with
      losses on any such Loan, Junior Loan or any related REO Property resulting
      from a deductible clause in a blanket hazard policy or master single
      interest policy; and

            (viii) any amounts paid by any Junior Loan Holder, Companion Loan
      Holder or mezzanine lender in respect of the related A Loan in connection
      with any cure or purchase option exercised pursuant to the terms of the
      related Intercreditor Agreement.

            The foregoing requirements for deposit by a Master Servicer in the
Collection Account maintained by such Master Servicer shall be exclusive, it
being understood and agreed that actual payments from Borrowers in the nature of
Escrow Payments, charges for beneficiary statements or demands, assumption fees,
modification fees, extension fees, amounts collected for Borrower checks
returned for insufficient funds or other amounts that such Master Servicer or a
Special Servicer is entitled to retain as Additional Servicing Compensation
pursuant to Section 3.11 need not be deposited by such Master Servicer in its
Collection Account. If a Master Servicer shall deposit in its Collection Account
any amount not required to be deposited therein, it may at any time withdraw
such amount from such Collection Account.

            Within one Business Day of receipt of any of the foregoing amounts
with respect to any Specially Serviced Loan, the applicable Special Servicer
shall remit such amounts to the applicable Master Servicer for deposit into the
Collection Account maintained by such Master Servicer. Any amounts received by
the applicable Special Servicer with respect to an REO Property (other than
Liquidation Proceeds payable pursuant to Section 9.01 in connection with the
termination of the Trust) shall be deposited into the applicable REO Account and
remitted to the applicable Master Servicer for deposit into its Collection
Account pursuant to Section 3.16(c).

            (b) The Certificate Administrator shall establish and maintain the
Distribution Account in trust for the benefit of the Certificateholders. The
Certificate Administrator shall make or be deemed to have made deposits in and
withdrawals from the Distribution Account in accordance with the terms of this
Agreement. Each Master Servicer shall deliver to the Certificate Administrator
each month on or before 1:00 p.m., New York City time, on the Master Servicer
Remittance Date, for deposit in the Distribution Account, that portion of the
Available Distribution Amount (calculated without regard to clauses (a)(iii),
(a)(iv), (a)(vii), (c), (d) and (g) of the definition thereof) for the related
Distribution Date then on deposit in the Collection Account maintained by such
Master Servicer. On the Master Servicer Remittance Date, the Master Servicer
shall deliver to the Swap Counterparty, in accordance with wiring instructions
provided by the Certificate Administrator, any portion of that amount consisting
of the Class A-4FL Net Fixed Swap Payment due to the Swap Counterparty with
respect to the related Distribution Date, and such portion shall be deemed to
have been distributed in respect of the Class LA-4FL Lower-Tier Interest and the
Class A-4FL Regular Interest, delivered to the Certificate Administrator,
deposited by the Certificate Administrator into the Floating Rate Account and
distributed by the Certificate Administrator to the Swap Counterparty pursuant
to the terms of this Agreement. On each Distribution Date (prior to
distributions on the Certificates being made on such date), the Certificate
Administrator shall deposit in the Distribution Account any amounts required to
be so deposited by the Certificate Administrator pursuant to Section 3.06 in
connection with losses incurred with respect to Permitted Investments of funds
held in the Distribution Account and, to the extent permitted by Section 3.06,
shall be permitted to withdraw any Net Investment Earnings from the Distribution
Account. Amounts deposited in respect of the 828-850 Madison Avenue Loan shall
be deemed to be distributed in respect of the 828-850 Madison Avenue Loan REMIC
Regular Interest and the 828-850 Madison Avenue Loan REMIC Residual Interest in
accordance with the REMIC Declaration.

            Subject to Section 3.05, each Master Servicer shall, as and when
required hereunder, deliver to the Certificate Administrator for deposit in the
Distribution Account:

            (i) any P&I Advances required to be made by such Master Servicer in
      accordance with Section 4.03 (or, if the Trustee succeeds to such Master
      Servicer's obligations hereunder, Section 7.05);

            (ii) any Liquidation Proceeds (other than with respect to any
      Companion Loan) paid by such Master Servicer in connection with the
      purchase of all of the Loans and any REO Properties in the Trust Fund
      pursuant to Section 9.01 (exclusive of that portion thereof required to be
      deposited in such Master Servicer's Collection Account or the Grantor
      Trust Distribution Account pursuant to Section 9.01);

            (iii) any payments required to be made by such Master Servicer
      pursuant to Section 3.02(e); and

            (iv) any other amounts required to be so delivered by such Master
      Servicer for deposit in the Distribution Account pursuant to any provision
      of this Agreement.

            The Certificate Administrator shall, upon receipt, deposit in the
Distribution Account any and all amounts received by the Certificate
Administrator that are required by the terms of this Agreement to be deposited
therein (including the withdrawal amount from the Interest Reserve Account
pursuant to Section 3.28(b) and such amount from the Excess Liquidation Proceeds
Account as required pursuant to Section 3.04(d)). To the extent that any Master
Servicer has not delivered to the Certificate Administrator for deposit in the
Distribution Account such amounts as are required to have been so delivered on
the Master Servicer Remittance Date, such Master Servicer shall pay interest
thereon to the Certificate Administrator at an interest rate equal to the
Reimbursement Rate then in effect for the period from and including the Master
Servicer Remittance Date to and excluding the date such amounts are received for
deposit by the Certificate Administrator.

            Any amounts deposited in accordance with this Section 3.04(b) that
represent amounts deposited in respect of the 828-850 Madison Avenue Loan REMIC
shall be deemed to be held in the Distribution Account as a distribution in
respect of the 828-850 Madison Avenue Loan REMIC Regular Interest and in the
Grantor Trust Distribution Account as a distribution in respect of the 828-850
Madison Avenue Loan REMIC Residual Interest as set forth herein.

            (c) Prior to the Master Servicer Remittance Date relating to any Due
Period in which Excess Interest is received on any ARD Trust Mortgage Loan or
any distribution is received in respect of the 828-850 Madison Avenue Loan REMIC
Residual Interest, the Certificate Administrator shall establish, and maintain
the Grantor Trust Distribution Account in the name of the Certificate
Administrator for the benefit of the Holders of the Class V Certificates and the
Class R Certificates, respectively. The Grantor Trust Distribution Account shall
be established and maintained as an Eligible Account or, subject to Section
3.04(i), a subaccount of an Eligible Account. On or before each Master Servicer
Remittance Date, each Master Servicer shall remit to the Certificate
Administrator for deposit in the Grantor Trust Distribution Account an amount
equal to the Excess Interest or any distribution in respect of the 828-850
Madison Avenue Loan REMIC Residual Interest received by such Master Servicer
during the related Due Period on the Loans for which it is the applicable Master
Servicer. On each Distribution Date, the Certificate Administrator shall
withdraw the Excess Interest or any distribution received in respect of the
828-850 Madison Avenue Loan REMIC Residual Interest from the Grantor Trust
Distribution Account for distribution pursuant to Section 4.01(c).

            (d) The Certificate Administrator, on behalf of the Trust Fund,
shall establish and maintain the Floating Rate Account in trust for the benefit
of the Holders of the Class A-4FL Certificates. The Certificate Administrator
shall make or be deemed to have made deposits in and withdrawals from the
Floating Rate Account in accordance with the terms of this Agreement. On the
Business Day preceding each Distribution Date, the Certificate Administrator
shall deposit in the Floating Rate Account any amounts required to be so
deposited by the Certificate Administrator pursuant to Section 3.06 in
connection with losses incurred with respect to Permitted Investments of funds
held in the Floating Rate Account and, to the extent permitted by Section 3.06,
shall be permitted to withdraw any Net Investment Earnings from the Floating
Rate Account. On each Class A-4FL Swap Payment Date, following any deposit to
the Distribution Account on such date, the Certificate Administrator shall be
deemed to deposit into the Floating Rate Account (i) the Class A-4FL Net Fixed
Swap Payment distributable with respect to the Class A-4FL Regular Interest
pursuant to Section 3.04(b) and payable to the Swap Counterparty for such
Distribution Date (such amounts to be credited against amounts otherwise
distributable in respect of the Class A-4FL Regular Interest pursuant to
Sections 4.01(a) and 4.01(b) for such Distribution Date) and (ii) all amounts
received from the Swap Counterparty under the Swap Agreement.

            (e) If any Excess Liquidation Proceeds are received, the Certificate
Administrator shall establish and maintain one or more accounts (collectively,
the "Excess Liquidation Proceeds Account") to be held in trust for the benefit
of the Certificateholders. Each account that constitutes the Excess Liquidation
Proceeds Account shall be an Eligible Account or, subject to Section 3.04(j), a
sub-account of an Eligible Account. Not later than 1:00 p.m. on each Master
Servicer Remittance Date, each Master Servicer shall withdraw from such Master
Servicer's Collection Account and remit to the Certificate Administrator for
deposit in the Excess Liquidation Proceeds Account all Excess Liquidation
Proceeds received by such Master Servicer during the Due Period immediately
prior to such Master Servicer Remittance Date on the Loans for which such Master
Servicer is the applicable Master Servicer. If any Excess Liquidation Proceeds
received by a Master Servicer during any Due Period relate to any Companion Loan
or Junior Loan, such amount shall be deposited in the applicable Companion Loan
Custodial Account or Junior Loan Custodial Account, as applicable. Excess
Liquidation Proceeds, if any, received on the 828-850 Madison Avenue Loan shall
be deemed distributed in respect of the 828-850 Madison Avenue Loan REMIC
Residual Interest and held in the related portion of the Excess Liquidation
Proceeds Account until applied in accordance with the second succeeding
paragraph.

            On each Master Servicer Remittance Date, the Certificate
Administrator shall deposit in the Excess Liquidation Proceeds Account any
amounts required to be so deposited by the Certificate Administrator pursuant to
Section 3.06 in connection with losses incurred with respect to Permitted
Investments of funds held in the Excess Liquidation Proceeds Account and, to the
extent permitted by Section 3.06, shall be permitted to withdraw any Net
Investment Earnings from the Excess Liquidation Proceeds Account.

            On the Business Day prior to each Distribution Date, the Certificate
Administrator shall withdraw from the Excess Liquidation Proceeds Account and
deposit in the Distribution Account, for distribution on such Distribution Date,
an amount equal to the lesser of (i) the entire amount, if any, then on deposit
in the Excess Liquidation Proceeds Account and (ii) the excess, if any, of the
aggregate amount distributable with respect to the Regular Certificates and the
Class A-4FL Regular Interest on such Distribution Date pursuant to Section
4.01(a), over the Available Distribution Amount for such Distribution Date
(calculated without regard to such transfer from the Excess Liquidation Proceeds
Account to the Distribution Account); provided that on the Business Day prior to
the Final Distribution Date, the Certificate Administrator shall withdraw from
the Excess Liquidation Proceeds Account and deposit in the Distribution Account,
for distribution on such Distribution Date, any and all amounts then on deposit
in the Excess Liquidation Proceeds Account.

            (f) Funds on deposit in a Collection Account, a Companion Loan
Custodial Account, a Junior Loan Custodial Account, the Interest Reserve
Account, the Grantor Trust Distribution Account, the Excess Liquidation Proceeds
Account and the Distribution Account shall be invested only in Permitted
Investments in accordance with the provisions of Section 3.06. Each Master
Servicer shall give notice to the Trustee, the Certificate Administrator, the
Special Servicers, the Rating Agencies and the Depositor of any new location of
the Collection Account maintained by such Master Servicer prior to any change
thereof. As of the Closing Date (or the date such account is established, if
later), the Distribution Account, the Excess Liquidation Proceeds Account, and
the Grantor Trust Distribution Account shall be located at the offices of the
Certificate Administrator. The Certificate Administrator shall give notice to
the Master Servicers, the Trustee and the Depositor of any new location of the
Distribution Account, the Excess Liquidation Proceeds Account or the Grantor
Trust Distribution Account, prior to any change thereof.

            (g) With respect to a CBA B Loan from and after the date, if any, on
which any CBA A/B Material Default occurs and is continuing with respect to the
subject CBA A/B Loan Pair (and, as a result, such CBA B Loan is being serviced
hereunder) or the Mortgaged Property securing the subject CBA A/B Loan Pair has
become REO Property, and with respect to each Companion Loan or other Junior
Loan from and after the Closing Date, the applicable Master Servicer shall
establish and maintain, or cause to be established and maintained, a Companion
Loan Custodial Account or Junior Loan Custodial Account, as the case may be,
into which such Master Servicer shall deposit or cause to be deposited (if not
otherwise required to be deposited in the Collection Account maintained by such
Master Servicer) on a daily basis (and in no event later than the Business Day
following the receipt of available funds) or shall transfer from general
collections on deposit in the Collection Account maintained by such Master
Servicer, except as otherwise specifically provided herein (and provided that
the subject payment or collection was not and may not otherwise be withdrawn
from such Collection Account for any other purpose contemplated by Section
3.05(a) or any other section of this Agreement), the following payments and
collections on the applicable Junior Loan or Companion Loan received after the
Cut-off Date (other than payments of principal and interest due and payable on
or before the Cut-off Date) and the following payments and collections received
on the applicable Junior Loan or Companion Loan by such Master Servicer on or
prior to the Cut-off Date but allocable to a period subsequent thereto:

            (i) all payments on account of principal, including principal
      prepayments, on such Companion Loan or Junior Loan; and

            (ii) all payments on account of interest (net of any related Primary
      Servicing Fees), including Excess Interest and Penalty Charges (net of,
      subject to the related Intercreditor Agreement, any amount thereof
      utilized to offset interest on Advances or any Additional Trust Fund
      Expenses (to the extent such interest on Advances or Additional Trust Fund
      Expenses are related to the subject Serviced Loan Combination and
      allocable to such Companion Loan or Junior Loan pursuant to the related
      Intercreditor Agreement), on such Companion Loan or Junior Loan; and

            (iii) all Insurance and Condemnation Proceeds received that are
      allocable to such Companion Loan or Junior Loan; and

            (iv) all Liquidation Proceeds received that are allocable to such
      Companion Loan or Junior Loan; and

            (v) any amounts required to be transferred from an REO Account
      pursuant to Section 3.16(c) that relate to such Companion Loan or Junior
      Loan; and

            (vi) all yield maintenance charges and prepayment premiums received
      in respect of such Companion Loan or Junior Loan; and

            (vii) any amounts required to be deposited by the applicable Master
      Servicer or the applicable Special Servicer pursuant to Section 3.07(b) in
      connection with losses on such Companion Loan or Junior Loan resulting
      from a deductible clause in a blanket or master force placed hazard
      insurance policy relating thereto; and

            (viii) any amounts paid by the holder of any A Loan or any mezzanine
      lender in connection with any purchase option exercised pursuant to the
      terms of the related Intercreditor Agreement, that are distributable to
      the related Companion Loan Holder or Junior Loan Holder; and

            (ix) any amounts required to be deposited by the Master Servicer
      pursuant to Section 3.06 in connection with losses incurred with respect
      to Permitted Investments of funds held in such Companion Loan Custodial
      Account or Junior Loan Custodial Account.

            The foregoing requirements for deposit by a Master Servicer in a
Companion Loan Custodial Account or Junior Loan Custodial Account shall be
exclusive, it being understood and agreed that actual payments from a Borrower
in the nature of Escrow Payments, charges for beneficiary statements or demands,
assumption fees, modification fees, extension fees, amounts collected for
Borrower checks returned for insufficient funds or other amounts that such
Master Servicer or the applicable Special Servicer is entitled to retain as
Additional Servicing Compensation pursuant to Section 3.11 need not be deposited
by such Master Servicer in such Companion Loan Custodial Account or Junior Loan
Custodial Account. If a Master Servicer for any reason deposits in any Companion
Loan Custodial Account or Junior Loan Custodial Account any amount not required
to be deposited therein, such Master Servicer may at any time withdraw such
amount from such Companion Loan Custodial Account or Junior Loan Custodial
Account, notwithstanding any provision in this Agreement to the contrary.

            (h) With respect to any CBA B Loan from and after the date, if any,
on which any CBA A/B Material Default occurs and is continuing with respect to
the subject CBA A/B Loan Pair (and, as a result, such CBA B Loan is being
serviced hereunder) or the Mortgaged Property securing the subject CBA A/B Loan
Pair has become REO Property, and with respect to each other Junior Loan and
Companion Loan from and after the date hereof, the applicable Master Servicer
shall, as and when required pursuant to the related Intercreditor Agreement and
Section 3.05(a), withdraw from the related Junior Loan Custodial Account or
Companion Loan Custodial Account and pay to the applicable parties hereunder
such amounts as is permitted under the related Intercreditor Agreement and this
Agreement for purposes of the reimbursement of Advances, the payment of interest
on Advances, the payment of Servicing Fees, Special Servicing Fees, Workout Fees
and Liquidation Fees and the payment of any other servicing expenses and fees
relating to the subject Junior Loan or Companion Loan or any related REO
Property and, further, to pay to the related Junior Loan Holder or Companion
Loan Holder all amounts to which each of them is entitled in respect of the
subject Junior Loan and Companion Loan, respectively, in accordance with the
related Intercreditor Agreement. The foregoing payments shall be made in
accordance with the priorities set forth in the related Intercreditor Agreement.
Payments to the Trust shall be made by transfer of the applicable funds to the
Collection Account, and payments to the related Junior Loan Holder or Companion
Loan Holder shall be made in accordance with the related Intercreditor
Agreement.

            The applicable Master Servicer shall make remittances allocable to
the 280 Park Avenue Companion Loan (pursuant to the respective Intercreditor
Agreement) to the Holder of the related Companion Loan on the Business Day prior
to the P&I Advance Determination Date (or if not defined, no later than two
Business Days prior to the related Distribution Date) in the related PSA.

            (i) Notwithstanding the foregoing or any other provision to the
contrary in this Agreement, each Master Servicer may maintain its Collection
Account and the respective Junior Loan Custodial Accounts and Companion Loan
Custodial Accounts to be maintained by it (if any) as multiple separate
sub-accounts of a single Eligible Account; provided that: (i) all deposits into
and withdrawals from such single Eligible Account shall be deemed to have been
made in the same manner as would be the case if such Collection Account and such
respective Junior Loan Custodial Accounts or Companion Loan Custodial Account
were maintained as multiple separate accounts; (ii) all distributions on the
Certificates will be calculated and made in the same manner as would be the case
if such Collection Account and such respective Junior Loan Custodial Accounts or
Companion Loan Custodial Account were maintained as multiple separate accounts;
(iii) such Master Servicer shall make credits and debits to those multiple
sub-accounts in a manner consistent with the provisions of this Agreement
governing deposits and withdrawals of funds to and from the Collection Accounts,
Companion Loan Custodial Accounts and Junior Loan Custodial Accounts,
respectively; (iv) such Master Servicer's maintaining such Collection Account
and such respective Junior Loan Custodial Accounts or Companion Loan Custodial
Accounts as multiple separate sub-accounts of a single Eligible Account (as
opposed to in the form of multiple separate Eligible Accounts) shall not
materially and adversely affect any of the Certificateholders, any Companion
Loan Holder or any Junior Loan Holder; and (v) such single Eligible Account
shall be entitled substantially as follows: "[name of subject Master Servicer],
in trust for [name of Trustee], as Trustee for the benefit of Holders of Credit
Suisse First Boston Mortgage Securities Corp., Commercial Mortgage Pass-Through
Certificates, Series 2006-C4, [names of respective Junior Loan Holders or
Companion Loan Holders, as their interests may appear, Collection/Custodial
Account."

            (j) Also notwithstanding the foregoing or any other provision to the
contrary in this Agreement, the Certificate Administrator may maintain the
Distribution Account, the Grantor Trust Distribution Account, the Interest
Reserve Account, the Floating Rate Account and the Excess Liquidation Proceeds
Account as four separate subaccounts of a single Eligible Account; provided
that: (i) all deposits into and withdrawals from such single Eligible Account
shall be made in the same manner as would be the case if the Distribution
Account, the Grantor Trust Distribution Account, the Interest Reserve Account
and the Excess Liquidation Proceeds Account were maintained as four separate
accounts; (ii) all distributions on the Certificates will be calculated and made
in the same manner as would be the case if the Distribution Account, the Grantor
Trust Distribution Account, the Interest Reserve Account and the Excess
Liquidation Proceeds Account were maintained as four separate accounts; (iii)
the Certificate Administrator shall make debits and credits to those four
subaccounts in a manner consistent with the provisions of this Agreement
governing transfers of funds between the Distribution Account, the Grantor Trust
Distribution Account, the Interest Reserve Account, the Floating Rate Account
and the Excess Liquidation Proceeds Account, as the case may be; (iv) the
Certificate Administrator's maintaining the Distribution Account, the Grantor
Trust Distribution Account, the Interest Reserve Account, the Floating Rate
Account and the Excess Liquidation Proceeds Account as four separate subaccounts
of a single Eligible Account (as opposed to in the form of four separate
Eligible Accounts) shall not materially and adversely affect any of the
Certificateholders; and (v) such single Eligible Account shall be entitled
"[name of Trustee], as Trustee, in trust for the registered holders of Credit
Suisse First Boston Mortgage Securities Corp., Commercial Mortgage Pass-Through
Certificates, Series 2006-C4, Distribution Account, Grantor Trust Distribution
Account, Interest Reserve Account, Floating Rate Account and Excess Liquidation
Proceeds Account."

            Section 3.05 Permitted Withdrawals from the Collection Accounts and
the Distribution Account.

            (a) Each Master Servicer may, from time to time, make withdrawals
from its Collection Account for any of the following purposes (the order set
forth below not constituting an order of priority for such withdrawals):

            (i) to remit to the Certificate Administrator for deposit in the
      Distribution Account the amount required to be remitted pursuant to the
      first paragraph of Section 3.04(b) and the amount to be applied to make
      P&I Advances by such Master Servicer pursuant to Section 4.03(a);

            (ii) to remit Excess Interest or any distribution in respect of the
      828-850 Madison Avenue Loan REMIC Residual Interest to the Certificate
      Administrator for deposit in the Grantor Trust Distribution Account
      pursuant to Section 3.04(d);

            (iii) to pay (w) to such Master Servicer or the holder of Master
      Servicer No. 1's or Master Servicer No. 2's Excess Servicing Strip
      (subject to Section 3.11(a)) unpaid Master Servicing Fees and any Primary
      Servicing Fees to which it or such holder is entitled pursuant to Section
      3.11(a), (x) to any Broker Strip Payee entitled thereto, the related
      Broker Strip, (y) to any Primary Servicer entitled thereto, the related
      Primary Servicing Fees with respect to the Loans (and any related REO
      Loans) for which such Master Servicer is the applicable Master Servicer,
      and (z) to the applicable Special Servicer, any unpaid Special Servicing
      Fees earned with respect to Specially Serviced Loans and REO Loans for
      which such Special Servicer is the applicable Special Servicer, as
      applicable, such Master Servicer's rights, any Primary Servicer's rights,
      any Broker Strip Payee's rights and such Special Servicer's rights to
      payment pursuant to this clause (iii) with respect to any Loan, Companion
      Loan, Junior Loan or REO Loan, as applicable, being limited to amounts
      received on or in respect of such Loan, Companion Loan or such Junior Loan
      (whether in the form of payments, Liquidation Proceeds or Insurance and
      Condemnation Proceeds) or on or in respect of such REO Loan (whether in
      the form of REO Revenues, Liquidation Proceeds or Insurance and
      Condemnation Proceeds) that are allocable as a recovery of interest
      thereon;

            (iv) to pay to the applicable Special Servicer unpaid Liquidation
      Fees and Workout Fees in respect of Loans, Companion Loan and Junior Loans
      as to which the Master Servicer maintaining the subject Collection Account
      is the applicable Master Servicer (and any related REO Loans), as
      applicable;

            (v) to reimburse itself or the Trustee, as applicable, for
      unreimbursed P&I Advances (to the extent not previously reimbursed in the
      form of a Cure Payment from any Junior Loan Holder, Companion Loan Holder)
      made by such party with respect to Loans for which such Master Servicer is
      the applicable Master Servicer and any related REO Loans, such Master
      Servicer's or the Trustee's right to receive payment pursuant to this
      clause (v) being limited to amounts received which represent Late
      Collections of interest (net of the related Master Servicing Fees, Primary
      Servicing Fees and Broker Strip Interest, if any) on and principal of the
      particular Loans and REO Loans with respect to which such P&I Advances
      were made;

            (vi) to reimburse itself or the Trustee, as applicable, for
      unreimbursed Servicing Advances made by such party with respect to any
      Loans, Companion Loan and/or Junior Loans for which such Master Servicer
      is the applicable Master Servicer and/or related REO Properties, such
      Master Servicer's or the Trustee's respective rights to receive payment
      pursuant to this clause (vi) with respect to any Loan, Companion Loan,
      Junior Loan or REO Property being limited to, as applicable, related
      payments, Liquidation Proceeds, Insurance and Condemnation Proceeds and
      REO Revenues;

            (vii) subject to Section 3.19(e), to reimburse itself or the
      Trustee, as applicable, for (A) Nonrecoverable Advances incurred by such
      Master Servicer or the Trustee in respect of the Loans, Companion Loan and
      Junior Loans, for which such Master Servicer is the applicable Master
      Servicer (as well as any related REO Loans) and to pay to itself or the
      Trustee, as applicable, interest accrued and payable on such reimbursed
      Nonrecoverable Advances, which reimbursement and payment shall be made
      (subject to Section 1.05(a)) out of general collections on the Loans for
      which such Master Servicer is the applicable Master Servicer and any
      related REO Properties first from such amounts that are allocated to the
      Loan Group to which the subject Loan belongs and second from such amounts
      that are allocated to any other Loan Groups and (B) Workout-Delayed
      Reimbursement Amounts, out of the principal portion of the general
      collections on the Mortgage Loans and REO Properties, net of such amounts
      being reimbursed pursuant to (A) above;

            (viii) at such time as it reimburses itself or the Trustee, as
      applicable, for (a) any unreimbursed P&I Advance (including any such P&I
      Advance that constitutes a Workout-Delayed Reimbursement Amount) pursuant
      to clause (v) above, to pay itself or the Trustee, as applicable, any
      interest accrued and payable thereon in accordance with Section 4.03(d),
      or (b) any unreimbursed Servicing Advances pursuant to clause (vi) above
      or pursuant to Section 3.03(a)(ii), to pay itself or the Trustee, as the
      case may be, any interest accrued and payable thereon in accordance with
      Section 3.03(d);

            (ix) to reimburse itself, the applicable Special Servicer, the
      Depositor or the Trustee or the Certificate Administrator, as the case may
      be, for any unreimbursed expenses reasonably incurred by such Person in
      respect of any Breach or Defect relating to a Loan, Companion Loan or
      Junior Loan required to be serviced by such Master Servicer and giving
      rise to a repurchase obligation of any Responsible Party under Section 7
      of the related Mortgage Loan Purchase Agreement or under the Column
      Performance Guarantee, including, without limitation, any expenses arising
      out of the enforcement of the repurchase obligation, each such Person's
      right to reimbursement pursuant to this clause (ix) with respect to any
      Loan being limited to that portion of the Purchase Price paid for such
      Loan that represents such expense in accordance with clause (vi) of the
      definition of Purchase Price;

            (x) subject to Section 2.03(b), to reimburse itself, the Trustee,
      the Certificate Administrator or the applicable Special Servicer, as the
      case may be, out of general collections on the Loans for which such Master
      Servicer is the applicable Master Servicer and any related REO Properties
      for any unreimbursed expense reasonably incurred by such Person relating
      to a Loan required to be serviced by such Master Servicer in connection
      with the enforcement of any Responsible Party's obligations under Section
      7 of the related Mortgage Loan Purchase Agreement or under the Column
      Performance Guarantee, but only to the extent that such expenses are not
      reimbursable pursuant to clause (ix) above or otherwise;

            (xi) to pay itself, as Additional Servicing Compensation all amounts
      specified in the fifth and sixth paragraphs of Section 3.11(a); and to pay
      the applicable Special Servicer, as Additional Servicing Compensation all
      amounts specified in the second and last paragraphs of Section 3.11(b);

            (xii) if and to the extent allocable to the related Servicing Group
      and/or any related Junior Loans and REO Loans, to pay itself, the
      applicable Special Servicer, the Trustee, the Certificate Administrator,
      the Depositor or any of their respective Affiliates, shareholders,
      directors, officers, members, managers, employees and agents and various
      other related Persons, as the case may be, any amounts payable to any such
      Person pursuant to Sections 6.03(a) or 6.03(b);

            (xiii) to pay for the cost of any Opinion of Counsel contemplated by
      Sections 10.01(a) or 10.01(c) in connection with an amendment to this
      Agreement requested by the Trustee or such Master Servicer, which
      amendment is in furtherance of the rights and interests of
      Certificateholders; and, if and to the extent allocable to the related
      Servicing Group and/or any related Junior Loans and REO Loans to pay for
      (x) the cost of obtaining the REO Extension contemplated by Section
      3.16(a) and (y) the fees of the Trustee or the applicable Master Servicer
      for confirming a Special Servicer's determination of Fair Value of a
      Defaulted Loan;

            (xiv) to pay out of general collections on the Loans for which such
      Master Servicer is the applicable Master Servicer and any related REO
      Properties any and all federal, state and local taxes imposed on any Trust
      REMIC created hereunder or any of its assets or transactions, together
      with all incidental costs and expenses, to the extent that none of the
      Master Servicers, the Special Servicers or the Trustee is liable therefor;

            (xv) to reimburse such Master Servicer and the applicable Special
      Servicer out of general collections on the Loans for which such Master
      Servicer is the applicable Master Servicer and any related REO Properties
      for expenses incurred by and reimbursable to them by the Trust Fund (which
      expenses are not otherwise reimbursable pursuant to any other clause of
      this Section 3.05(a) or pursuant to Section 3.05(b));

            (xvi) to pay such Master Servicer the applicable Special Servicer,
      the Directing Certificateholder, any Companion Loan Holder, any Junior
      Loan Holder or any Responsible Party, as the case may be, with respect to
      each Loan, Companion Loan and Junior Loan, if any, previously purchased or
      replaced by such Person pursuant to this Agreement or the related
      Intercreditor Agreement (in each case, if such Master Servicer was the
      applicable Master Servicer), all amounts received thereon subsequent to
      the date of purchase or replacement, including, in the case of a
      Responsible Party, all amounts received thereon to which such Responsible
      Party is entitled under Section 2.03(b);

            (xvii) to reimburse the applicable Special Servicer for the cost of
      any environmental testing performed at such Special Servicer's direction
      pursuant to Section 3.09 with respect to any Mortgaged Property or REO
      Property relating to any Loan or Junior Loan for which such Master
      Servicer is the applicable Master Servicer;

            (xviii) to transfer the Excess Liquidation Proceeds to the
      Certificate Administrator on deposit in such Collection Account to the
      Trustee for deposit in the Excess Liquidation Proceeds Account in
      accordance with Section 3.04(e);

            (xix) to transfer to the Companion Loan Custodial Account all
      amounts payable to the Companion Loan Holder pursuant to Section 3.1 of
      the related Intercreditor Agreement in respect of the 280 Park Avenue
      Total Loan or any related REO Loan;

            (xx) to transfer to the related Junior Loan Custodial Account, as
      applicable, all amounts payable to each 828-850 Madison Avenue Junior Loan
      Holder, 3434 North Washington Boulevard Junior Loan Holder, 500 Sansome
      Office Junior Loan Holder, respectively, pursuant to Section 4 or Section
      5, as applicable, of the related Intercreditor Agreement in respect of the
      applicable Whole Loan or any related REO Loans;

            (xxi) to transfer to the related Junior Loan Custodial Account all
      amounts payable to the related CBA B Loan Holder in respect of any CBA B
      Loan being serviced hereunder or in respect of any related REO Loan,
      pursuant to the related CBA Intercreditor Agreement;

            (xxii) to make any payments, in addition to normal remittances,
      owing by the Trust Fund to any Junior Loan Holder under the related
      Intercreditor Agreement;

            (xxiii) to recoup any amounts deposited in such Collection Account
      in error; and

            (xxiv) to clear and terminate such Collection Account at the
      termination of this Agreement pursuant to Section 9.01; and

provided, however, that, in the case of the 828-850 Madison Avenue Total Loan,
the 500 Sansome Office Total Loan or the 3434 North Washington Boulevard Total
Loan:

                              (A) no Primary Servicing Fees, Workout Fees and
                        Liquidation Fees earned and other items that constitute
                        "Costs" (other than Special Servicing Fees and related
                        Nonrecoverable Servicing Advances or Workout-Delayed
                        Reimbursement Amounts made or paid hereunder and
                        interest thereon) under the applicable Intercreditor
                        Agreement attributable to the 828-850 Madison Avenue
                        Junior Loan, the 500 Sansome Office Junior Loan or the
                        3434 North Washington Boulevard Junior Loan or any
                        successor REO Loans with respect thereto shall in any
                        event be paid out of payments and other collections on
                        the Loans and/or any successor REO Loans with respect
                        thereto, and no Special Servicing Fees earned on such
                        Junior Loans or any successor REO Loans with respect
                        thereto shall in any event be paid out of payments or
                        other collections on the Loans (exclusive of the 828-850
                        Madison Avenue Loan, the 500 Sansome Office Loan or the
                        3434 North Washington Boulevard Loan, as applicable)
                        and/or any successor REO Loans with respect thereto; and

                              (B) no fees, costs or expenses allocable to the
                        Loans, any successor REO Loans with respect thereto, or
                        any particular such Loan or REO Loan exclusive of the
                        828-850 Madison Avenue Loan, the 500 Sansome Office Loan
                        or the 3434 North Washington Boulevard Loan, as
                        applicable or any successor REO Loan with respect
                        thereto) shall be paid out of payments and other
                        collections on, or amounts otherwise payable to the
                        holders of, the related Junior Loan or any successor REO
                        Loans with respect thereto; and

provided, however, that, in the case of each CBA A/B Loan Pair:

                  (A) to the maximum extent permitted by the related CBA
            Intercreditor Agreement, Special Servicing Fees, Workout Fees,
            Liquidation Fees, Advances, interest on Advances and all other
            servicing costs and expenses relating to such CBA A/B Loan Pair or
            any related REO Property shall be paid or reimbursed, as applicable,
            out of amounts otherwise payable to the holder of the related CBA B
            Loan or any successor REO Loan with respect thereto; and

                  (B) no fees, costs or expenses, including servicing
            compensation, allocable to the related CBA B Loan or any successor
            REO Loan with respect thereto (other than related Nonrecoverable
            Servicing Advances or Workout-Delayed Reimbursement Amounts made or
            paid hereunder and interest thereon) shall be paid or reimbursed, as
            applicable, out of any payments or other collections on the Loans
            and/or any successor REO Loans with respect thereto (exclusive of
            the related CBA A Loan or any successor REO Loan with respect
            thereto); and

                  (C) no fees, costs or expenses allocable to the Loans, any
            successor REO Loans with respect thereto or any particular such Loan
            or REO Loan (exclusive of the related CBA A Loan or any successor
            REO Loan with respect thereto) shall be paid out of payments and
            other collections on, or amounts otherwise payable to the holder of,
            the related CBA B Loan or any successor REO Loan with respect
            thereto; and

and provided further, however, that in the case of any Companion Loan:

                  (A) the Master Servicer shall be entitled to make transfers
            from time to time, from the related Companion Loan Custodial Account
            to the portion of the Collection Account that does not constitute
            any Companion Loan Custodial Account, of amounts necessary for the
            payments or reimbursement of amounts described in Section 3.05(a)
            above, but only insofar as the payment or reimbursement described
            therein is allocable to the related Loan under the related
            Intercreditor Agreement and is payable or reimbursable by the holder
            of the related Companion Loan, and the Master Servicer shall also be
            entitled to make transfers from time to time, from the related
            Companion Loan Custodial Account to the portion of the Collection
            Account that does not constitute any Companion Loan Custodial
            Account, of amounts transferred to such related Companion Loan
            Custodial Account in error, and amounts necessary for the clearing
            and termination of the Collection Account pursuant to Section 9.01;
            and

                  (B) the Master Servicer shall on each Master Servicer
            Remittance Date (subject to Section 3.04(h)) remit to the holder of
            the related Companion Loan or its designee all amounts on deposit in
            such Companion Loan Custodial Account (net of amounts permitted or
            required to be transferred therefrom as described in clause (A)
            above), to the extent that the holder of such Companion Loan is
            entitled thereto under the related Intercreditor Agreement or under
            the related Companion Loan loan documents;

provided further, however, that in the case of any Junior Loan (to the extent
not inconsistent with the preceding proviso):

                  (A) the applicable Master Servicer shall be entitled to make
            transfers from time to time, from the related Junior Loan Custodial
            Account to the applicable Collection Account, of amounts necessary
            for the payments and/or reimbursements of amounts described above in
            this Section 3.05(a), including the foregoing proviso, but only
            insofar as the payment or reimbursement described therein arises
            from or is related solely to the 828-850 Madison Avenue Total Loan,
            3434 North Washington Boulevard Total Loan, 500 Sansome Office Total
            Loan or the subject CBA A/B Loan Pair, as applicable, or is
            allocable to the 828-850 Madison Avenue Total Loan, 3434 North
            Washington Boulevard Total Loan, 500 Sansome Office Total Loan or to
            the subject CBA A/B Loan Pair, as applicable, pursuant to this
            Agreement and, in either case, is allocable to the related Junior
            Loan pursuant to the related Intercreditor Agreement(s), and such
            Master Servicer shall also be entitled to make transfers from time
            to time, from the related Junior Loan Custodial Account to the
            applicable Collection Account, of amounts transferred to such
            related Junior Loan Custodial Account in error, and amounts
            necessary for the clearing and termination of the related Junior
            Loan Custodial Account pursuant to Section 9.01;

                  (B) the applicable Master Servicer shall on the Business Day
            following receipt of payment (if received prior to 3:00 p.m. New
            York time) from the related Borrower or as otherwise required under
            the related Intercreditor Agreement, remit to the related Junior
            Loan Holder any amounts on deposit in the related Junior Loan
            Custodial Account (net of amounts permitted or required to be
            transferred therefrom as described in clause (A) above), to the
            extent that such Junior Loan Holder is entitled thereto under the
            related Intercreditor Agreement (including, if applicable, by way of
            the operation of any provision of the related Intercreditor
            Agreement(s) that entitles the holder of such Junior Loan to
            reimbursement of cure payments made by it).

            Expenses incurred with respect to each Serviced Loan Combination
shall be allocated in accordance with the corresponding Intercreditor
Agreement(s).

            If a Master Servicer is entitled to make any payment or
reimbursement described above and such payment or reimbursement relates to a
Junior Loan, then such Master Servicer shall, if funds on deposit in such Junior
Loan Custodial Account are insufficient therefor, request the related Junior
Loan Holder to make such payment or reimbursement to the extent such Junior Loan
Holder is obligated to make such payment or reimbursement pursuant to the
related Intercreditor Agreement. If such Junior Loan Holder fails to make such
payment or reimbursement that it is obligated to make within three Business Days
following such request, then (subject to the provisos to the first paragraph of
this Section 3.05(a)) such Master Servicer shall be entitled to make such
payment or reimbursement from the applicable Collection Account. The applicable
Master Servicer shall use reasonable efforts to recover any such payment or
reimbursement paid out of general collections on the Mortgage Pool from such
Junior Loan Holder, and if such payment or reimbursement is subsequently
recovered from such Junior Loan Holder (or from payments or collections on the
related CBA A/B Loan Pair that would otherwise be payable to the related Junior
Loan Holder), to the extent that any amounts were previously taken by such
Master Servicer from general collections on the Mortgage Pool on deposit in its
Collection Account, the amount recovered (or otherwise to be paid to the Junior
Loan Holder) shall be deposited into such Master Servicer's Collection Account
and shall not be deposited into the related Junior Loan Custodial Account.

            Subject to the provisions of Section 3.03(c), each Master Servicer
shall pay to the applicable Special Servicer from such Master Servicer's
Collection Account on each Master Servicer Remittance Date amounts permitted to
be paid to such Special Servicer therefrom based upon an Officer's Certificate
received from such Special Servicer on the first Business Day following the
immediately preceding Determination Date describing the item and amount to which
such Special Servicer is entitled. Each Master Servicer may conclusively rely on
any such certificate and shall have no duty to re-calculate the amounts stated
therein. Each Special Servicer shall keep and maintain separate accounting for
each Specially Serviced Loan and REO Property, on a loan-by-loan and
property-by-property basis, for the purpose of justifying any request thereby
for withdrawal from a Collection Account.

            Expenses incurred with respect to any Companion Loan shall be
allocated in accordance with the related Intercreditor Agreement. The applicable
Master Servicer shall keep and maintain a separate accounting for each Loan and
the related Companion Loan for the purpose of justifying any withdrawal or
transfer from the Collection Account and each Companion Loan Custodial Account.
If a Master Servicer is entitled to make any payment or reimbursement described
above and such payment or reimbursement relates to a Companion Loan but is not
limited to a specific source of funds (other than the requirement that it must
be made by withdrawal from the related Companion Loan Custodial Account insofar
as it relates to such Companion Loan), the Master Servicer shall, if funds on
deposit in such Companion Loan Custodial Account are insufficient therefor,
request the holder of such Companion Loan to make such payment or reimbursement.
If the holder of such Companion Loan fails to make such payment or reimbursement
within three (3) Business Days following such request, the applicable Master
Servicer shall be entitled to make such payment or reimbursement from the
Collection Account. If such payment or reimbursement is subsequently recovered
from the holder of such Companion Loan, the amount recovered shall be deposited
into the Collection Account and shall not be deposited into the related
Companion Loan Custodial Account.

            The applicable Master Servicer shall keep and maintain separate
accounting records, on a loan-by-loan and property-by-property basis when
appropriate, for the purpose of justifying any withdrawal from each Collection
Account and Junior Loan Custodial Account. Any amounts withdrawn from the
Collection Account pursuant to clauses (ii), (iii) and (v) through (xxiii) above
that are (A) specific to the 828-850 Madison Avenue Loan REMIC shall be
allocated by the Certificate Administrator to the 828-850 Madison Avenue Loan
REMIC, (B) specific to the Mortgage Loans other than the 828-850 Madison Avenue
Loan REMIC shall be allocated by the Certificate Administrator to the Lower-Tier
REMIC, and (C) not specific to a particular Mortgage Loan shall be allocated by
the Certificate Administrator between the 828-850 Madison Avenue Loan REMIC and
the Lower-Tier REMIC in proportion to the Stated Principal Balances of their
related Mortgage Loans.

            (b) The Certificate Administrator, may, from time to time, make or
be deemed to make withdrawals from the Distribution Account for any of the
following purposes:

            (i) to make distributions on the Uncertificated Lower-Tier Interests
      and the Class R Certificates in respect of the residual interest in the
      Lower-Tier REMIC in accordance with Sections 4.01(a) and (b), and to
      Certificateholders (other than the Class V Certificateholders) on each
      Distribution Date pursuant to Sections 4.01(a) and (b) or Section 9.01, as
      applicable;

            (ii) to pay the Trustee and the Certificate Administrator accrued
      but unpaid Trustee Fees and Certificate Administrator Fees; respectively;

            (iii) to pay (A) to the Trustee, the Certificate Administrator or
      any of its Affiliates, directors, officers, employees and agents, as the
      case may be, any amounts payable or reimbursable to any such Person
      hereunder, including pursuant to Section 3.26, 3.30(o), 6.03(a), 6.03(b),
      8.05(a) or 8.05(b), and (B) to the Person entitled thereto any amounts
      that would have been paid out of general collections on deposit in a
      Collection Account pursuant to any of clauses (ix), (x), (xii), (xiii),
      (xiv) and (xv) of Section 3.05(a) if those general collections had been
      sufficient;

            (iv) to pay for the cost of the Opinion of Counsel contemplated by
      Section 10.01(c) in connection with any amendment to this Agreement
      requested by the Trustee or the Certificate Administrator;

            (v) subject to Section 3.19(e), to reimburse and pay to itself and,
      pro rata based on entitlement, the Master Servicers, in that order, for
      outstanding and unreimbursed Nonrecoverable Advances and accrued and
      unpaid interest thereon (consistent with Section 1.05(a));

            (vi) Reserved;

            (vii) to clear and terminate the Distribution Account and the at the
      termination of this Agreement pursuant to Section 9.01;

            (viii) to transfer amounts required to be transferred to the
      Interest Reserve Account pursuant to Section 3.28(a); and

            (ix) to recoup any amounts deposited in the Distribution Account in
      error.

            (c) Notwithstanding anything herein to the contrary, with respect to
any Loan, (i) if amounts on deposit in the respective Collection Accounts and
the Distribution Accounts are not sufficient to pay the full amount of the
Master Servicing Fees listed in Section 3.05(a)(ii) and the Trustee Fee,
including the Certificate Administrator Fee, listed in Section 3.05(b)(ii), then
the Trustee Fee, including the Certificate Administrator Fee, shall be paid in
full prior to the payment of any Master Servicing Fees payable under Section
3.05(a)(ii) and (ii) if amounts on deposit in the respective Collection Accounts
are not sufficient to reimburse the full amount of Advances listed in Sections
3.05(a)(v), (vi) and (vii), then reimbursements shall be paid first to the
Trustee, and then to the applicable Master Servicer.

            (d) The Certificate Administrator may from time to time make
withdrawals from the Floating Rate Account for (but only for) the following
purposes:

                  (i) to make regularly scheduled payments of interest to the
            Swap Counterparty pursuant to Section 3.33(e) provided there is no
            Swap Default;

                  (ii) to make distributions to the Class A-4FL
            Certificateholders on each Distribution Date pursuant to Section
            4.01(g);

                  (iii) to pay itself Net Investment Earnings earned on funds
            held in the Floating Rate Account;

                  (iv) to pay to the Persons entitled thereto any amounts
            deposited in the Floating Rate Account in error; and

                  (v) to clear and terminate the Floating Rate Account pursuant
            to Section 9.01

            Section 3.06 Investment of Funds in the Collection Accounts, Junior
Loan Custodial Accounts, Servicing Accounts, Companion Loan Custodial Accounts,
Servicing Accounts Cash Collateral Accounts, Lock-Box Accounts, REO Accounts,
Distribution Account, Interest Reserve Account, Floating Rate Account and Excess
Liquidation Proceeds Account.

            (a) (i) Each Master Servicer may direct any depository institution
maintaining for such Master Servicer a Collection Account, a Junior Loan
Custodial Account, a Companion Loan Custodial Account, any Servicing Account,
any Cash Collateral Account and any Lock-Box Account (any of the foregoing
accounts listed in this clause (i) for purposes of this Section 3.06, a "Master
Servicer Account"), (ii) a Special Servicer may direct any depository
institution maintaining for such Special Servicer an REO Account and (iii) the
Certificate Administrator may direct (pursuant to a standing order or otherwise)
any depository institution maintaining the Distribution Account, the Floating
Rate Account, the Interest Reserve Account or the Excess Liquidation Proceeds
Account (any of the foregoing accounts listed in this clause (iii) for purposes
of this Section 3.06, a "Certificate Administrator Account"; and any of the
Master Servicer Accounts, REO Accounts and Certificate Administrator Accounts
for purposes of this Section 3.06, an "Investment Account"), to invest (or if
such depository institution is such Master Servicer, such Special Servicer or
the Certificate Administrator, as applicable, it may itself invest) the funds
held therein solely in one or more Permitted Investments bearing interest or
sold at a discount, and maturing, unless payable on demand, (A) no later than
the Business Day immediately preceding the next succeeding date on which such
funds are required to be withdrawn from such account pursuant to this Agreement,
if a Person other than the depository institution maintaining such account is
the obligor thereon, and (B) no later than the date on which such funds are
required to be withdrawn from such account pursuant to this Agreement, if the
depository institution maintaining such account is the obligor thereon. All such
Permitted Investments shall be held to maturity, unless payable on demand. Any
investment of funds in an Investment Account shall be made in the name of the
applicable Master Servicer or Special Servicer, as applicable, on behalf of the
Trustee or in the name of the Trustee (in its capacity as such).

            The applicable Master Servicer (in the case of any Master Servicer
Account) or the applicable Special Servicer (in the case of an REO Account), on
behalf of the Trustee, or the Certificate Administrator in its capacity as such
(in the case of any Certificate Administrator Account) shall maintain continuous
possession of any Permitted Investment of amounts in such accounts that is
either (i) a "certificated security," as such term is defined in the UCC or (ii)
other property in which a secured party may perfect its security interest by
possession under the UCC or any other applicable law. Possession of any such
Permitted Investment by the applicable Master Servicer (in the case of a
Permitted Investment of funds on deposit in any Master Servicer Account) or the
applicable Special Servicer (in the case of a Permitted Investment of funds on
deposit in an REO Account) shall constitute possession by the Trustee, as
secured party, for purposes of Section 9-313 of the UCC and any other applicable
law. In the event amounts on deposit in an Investment Account are at any time
invested in a Permitted Investment payable on demand, the applicable Master
Servicer (in the case of any Master Servicer Account), the applicable Special
Servicer (in the case of an REO Account) or the Certificate Administrator (in
the case of any Certificate Administrator Account) shall:

            (i) consistent with any notice required to be given thereunder,
      demand that payment thereon be made on the last day such Permitted
      Investment may otherwise mature hereunder in an amount equal to the lesser
      of (a) all amounts then payable thereunder and (b) the amount required to
      be withdrawn on such date; and

            (ii) demand payment of all amounts due thereunder promptly upon
      determination by the applicable Master Servicer, the applicable Special
      Servicer or the Certificate Administrator, as the case may be, that such
      Permitted Investment would not constitute a Permitted Investment in
      respect of funds thereafter on deposit in the subject Investment Account.

            (b) Interest and investment income realized on funds and deposited
in each of the Master Servicer Accounts to the extent of the Net Investment
Earnings, if any, with respect to such account for each period from any
Distribution Date to the immediately succeeding Master Servicer Remittance Date
shall be for the sole and exclusive benefit of the applicable Master Servicer to
the extent not required to be paid to the related Borrower and shall be subject
to its withdrawal, or withdrawal at its direction, in accordance with Section
3.03, 3.04 or 3.05, as the case may be. Interest and investment income realized
on funds deposited in an REO Account, to the extent of the Net Investment
Earnings, if any, with respect to such account for each period from any
Distribution Date to the immediately succeeding Master Servicer Remittance Date,
shall be for the sole and exclusive benefit of the related Special Servicer, but
shall be subject to withdrawal in accordance with Section 3.16(c). Interest and
investment income realized on funds and deposited in each of the Certificate
Administrator Accounts, to the extent of the Net Investment Earnings, if any,
with respect to such account for each period from any Distribution Date to the
immediately succeeding Master Servicer Remittance Date, shall be for the sole
and exclusive benefit of the Certificate Administrator, and shall be subject to
its withdrawal in accordance with Section 3.05(a), 3.04(e) or 3.28(b), as the
case may be. If any loss shall be incurred in respect of any Permitted
Investment directed to be made by a Master Servicer, a Special Servicer or the
Certificate Administrator, as applicable, in connection with funds on deposit in
any of the Master Servicer Accounts (in the case of a Master Servicer), any of
the REO Accounts (in the case of a Special Servicer) or any of the Certificate
Administrator Accounts (in the case of the Certificate Administrator) maintained
by such Master Servicer, such Special Servicer or the Certificate Administrator,
then such Master Servicer, such Special Servicer or the Certificate
Administrator, as applicable, shall deposit therein, no later than the next
succeeding Master Servicer Remittance Date (or, in the case of the Certificate
Administrator and the Certificate Administrator Accounts (exclusive of the
Excess Liquidation Proceeds Distribution Account), no later than the next
succeeding Distribution Date), without right of reimbursement, the amount of the
Net Investment Loss, if any, with respect to such account for the period from
and including the immediately preceding Distribution Date (or, in the case of
the Certificate Administrator and the Certificate Administrator Accounts
(exclusive of the Excess Liquidation Proceeds Distribution Account), from and
including the first Business Day following the immediately preceding
Distribution Date) to and including such Master Servicer Remittance Date (or, in
the case of the Certificate Administrator and the Certificate Administrator
Accounts (exclusive of the Excess Liquidation Proceeds Distribution Account), to
and including the subject Distribution Date) provided, that none of the
applicable Master Servicer, the applicable Special Servicer or the Certificate
Administrator shall be required to deposit any loss on an investment of funds in
an Investment Account if such loss is incurred solely as a result of the
insolvency of the federal or state chartered depository institution or trust
company that holds such Investment Account, so long as such depository
institution or trust company (i) satisfied the qualifications set forth in the
definition of Eligible Account in the month in which the loss occurred and at
the time such investment was made and (ii) is neither the party required to
maintain such account nor an Affiliate thereof.

            (c) Except as otherwise expressly provided in this Agreement, if any
default occurs in the making of a payment due under any Permitted Investment, or
if a default occurs in any other performance required under any Permitted
Investment, the Trustee may and, subject to Section 8.02, upon the request of
Holders of Certificates entitled to a majority of the Voting Rights allocated to
any Class shall, take such action as may be appropriate to enforce such payment
or performance, including the institution and prosecution of appropriate
proceedings.

            (d) Notwithstanding the investment of funds held in a Collection
Account or the Distribution Account pursuant to this Section 3.06, for purposes
of calculating the Available Distribution Amount, the amounts so invested shall
be deemed to remain on deposit in such account.

            Section 3.07 Maintenance of Insurance Policies; Errors and Omissions
and Fidelity Coverage.

            (a) The applicable Master Servicer shall use its reasonable efforts,
consistent with the Servicing Standard, to cause the related Borrower to
maintain, for each Loan or Serviced Loan Combination any and all Insurance
Policy coverage as is required under the related Loan Documents (and, if the
related Borrower fails to do so, the applicable Master Servicer, unless it
determines any required Servicing Advance would constitute a Nonrecoverable
Advance, shall itself maintain such Insurance Policy coverage for each Loan and
Serviced Loan Combination (to the extent the Trustee as mortgagee has an
insurable interest in the related Mortgaged Property and to the extent such
Insurance Policy coverage is available at commercially reasonable rates, as
determined by such Master Servicer in accordance with the Servicing Standard);
provided, however, that, subject to Section 3.07(f), if any Mortgage permits the
holder thereof to dictate to the Borrower the Insurance Policy coverage to be
maintained on such Mortgaged Property, the applicable Master Servicer or the
applicable Special Servicer, as the case may be, shall impose such insurance
requirements as are consistent with the Servicing Standard. As to each Loan and
Serviced Loan Combination, the applicable Master Servicer shall use its
reasonable efforts to cause the related Borrower to maintain, and if the related
Borrower does not so maintain, the applicable Master Servicer shall maintain,
all-risk casualty insurance which does not contain any carve-out (or,
alternatively, a separate insurance policy that expressly provides coverage for)
property damage resulting from a terrorist or similar act, to the extent not
prohibited by the terms of the related Loan Documents; provided, however, that
the applicable Master Servicer will not be obligated to require any Borrower to
obtain or maintain insurance in excess of the amounts of coverage and
deductibles required by the related Loan Documents or by the related Mortgage
Loan Seller immediately prior to the Closing Date, unless such Master Servicer
determines, in accordance with the Servicing Standard, that the insurance
required immediately prior to the Closing Date (if less than what is required by
the related Loan Documents) would not be commercially reasonable for property of
the same type, size and/or location as the related Mortgaged Property and the
applicable Special Servicer, with the consent of the Directing Certificateholder
(which consent shall be obtained by the applicable Special Servicer), approves
such determination provided, that the applicable Special Servicer will not
follow any such direction, or refrain from acting based upon the lack of any
such direction, of the Directing Certificateholder, if following any such
direction of the Directing Certificateholder or refraining from taking such
action based upon the lack of any such direction of the Directing
Certificateholder would violate the Servicing Standard. Notwithstanding the
foregoing, the applicable Master Servicer shall not be required to call a
default under a Loan or Serviced Loan Combination if the related Borrower fails
to maintain such insurance, and such Master Servicer shall not be required to
maintain such insurance, if, in each case, the applicable Special Servicer has
determined subject to the Directing Certificateholder's approval and in
accordance with the Servicing Standard that either (a) such insurance is not
available at commercially reasonable rates and that such hazards are not at the
time commonly insured against for properties similar to the subject Mortgaged
Property and located in or around the region in which such Mortgaged Property is
located or (b) such insurance is not available at any rate; and provided,
further, that the applicable Master Servicer shall use reasonable efforts,
consistent with the Servicing Standard, to enforce any express provisions in the
related Loan Documents relating to insurance against loss or damage resulting
from terrorist or similar acts. Subject to Section 3.17(a), the applicable
Special Servicer shall maintain for each REO Property acquired in respect of a
Loan or Serviced Loan Combination no less Insurance Policy coverage than was
previously required of the Borrower under the related Loan Documents or, at such
Special Servicer's election, with the Directing Certificateholder's consent
(which consent shall be obtained by the applicable Special Servicer), coverage
satisfying insurance requirements consistent with the Servicing Standard,
provided that such coverage is available at commercially reasonable rates.

            With respect to the payment of insurance premiums and delinquent tax
assessments, in the event that a Master Servicer determines that a Servicing
Advance of such amounts would constitute a Nonrecoverable Advance, such Master
Servicer shall deliver notice of such determination to the Trustee and the
applicable Special Servicer. In the event such Loan is a Defaulted Loan, and a
Special Servicer is pursuing the foreclosure of the related Mortgaged Property,
upon receipt of such notice, such Special Servicer shall determine (in
accordance with the Servicing Standard) whether the payment of such amount (i)
is necessary to preserve the related Mortgaged Property and (ii) would be in the
best interests of the Certificateholders and, in the case of any Serviced Loan
Combinations, the related Junior Loan Holders, as a collective whole. If the
applicable Special Servicer determines that the payment of such amount (i) is
necessary to preserve the related Mortgaged Property and (ii) would be in the
best interests of the Certificateholders and, in the case of any Serviced Loan
Combinations, the related Junior Loan Holders, the Special Servicer shall direct
the applicable Master Servicer in writing to make such payment and such Master
Servicer shall make such payment, to the extent of available funds, from amounts
in its Collection Account.

            All such Insurance Policies shall (i) contain a "standard" mortgagee
clause, with loss payable to the applicable Master Servicer on behalf of the
Trustee (in the case of insurance maintained in respect of Loans and Serviced
Loan Combinations) or the applicable Special Servicer on behalf of the Trustee
(in the case of insurance maintained in respect of REO Properties), (ii) include
coverage in an amount not less than the lesser of the full replacement cost of
the improvements which are a part of the Mortgaged Property or the outstanding
principal balance owing on the related Loan or Serviced Loan Combination, as
applicable, but in any case in such an amount so as to avoid the application of
any co-insurance clause, (iii) include a replacement cost endorsement providing
no deduction for depreciation (unless such endorsement is not permitted under
the related Loan Documents) and (iv) be issued by either (x) a Qualified Insurer
or (y) for any Insurance Policy being maintained by the related Borrower, an
insurance carrier meeting the requirements of the related Mortgage, (provided
that such insurance carrier is authorized under applicable law to issue such
Insurance Policies). Any amounts collected by a Master Servicer or Special
Servicer under any such Insurance Policies (other than amounts to be applied to
the restoration or repair of the related Mortgaged Property or REO Property or
amounts to be released to the related Borrower, in each case in accordance with
the Servicing Standard and the provisions of the related Loan) shall be
deposited in the Collection Account maintained by the applicable Master
Servicer, subject to withdrawal pursuant to Section 3.05(a).

            Any costs incurred by the applicable Master Servicer in maintaining
any such Insurance Policies in respect of Loans and Serviced Loan Combinations
if the Borrower defaults on its obligation to maintain such Insurance Policies
shall be advanced by such Master Servicer as a Servicing Advance. The amounts so
advanced shall not, for purposes of calculating monthly distributions to
Certificateholders, be added to the unpaid principal balance of the related
Loan, notwithstanding that the terms of such Loan so permit. Any cost incurred
by the applicable Special Servicer in maintaining any such Insurance Policies
with respect to REO Properties shall be an expense of the Trust Fund payable out
of such Special Servicer's REO Account pursuant to Section 3.16(c) or, if the
amount on deposit therein is insufficient therefor, advanced by the applicable
Master Servicer as a Servicing Advance.

            If a Master Servicer or Special Servicer obtains and maintains a
blanket Insurance Policy with a Qualified Insurer insuring against fire and
hazard losses on all of the Loans and Junior Loans or related REO Properties, as
the case may be, required to be serviced and administered by such Master
Servicer or Special Servicer hereunder, and such Insurance Policy provides
protection equivalent to the individual policies otherwise required, then such
Master Servicer or such Special Servicer, as the case may be, shall conclusively
be deemed to have satisfied its obligation to cause fire and hazard insurance to
be maintained on the related Mortgaged Properties or REO Properties. Such
blanket Insurance Policy may contain a deductible clause, in which case if there
shall not have been maintained on the related Mortgaged Property or REO Property
a fire and hazard Insurance Policy complying with the requirements of Section
3.07(a), and there shall have been one or more losses which would have been
covered by such Insurance Policy, the applicable Master Servicer or the
applicable Special Servicer shall promptly deposit into the Collection Account
maintained by the applicable Master Servicer from such Master Servicer's or such
Special Servicer's own funds the portion of such loss or losses that would have
been covered under the individual policy (giving effect to any deductible
limitation or, in the absence of such deductible limitation, the deductible
limitation that is consistent with the Servicing Standard) but is not covered
under the blanket Insurance Policy because of such deductible clause. In
connection with its activities as administrator and servicer of the Loans and
Junior Loans for which it is the applicable Master Servicer, each Master
Servicer agrees to prepare and present, on behalf of itself, the Trustee and
Certificateholders and, in case of a Serviced Loan Combination, the related
Junior Loan Holder(s), if any, claims under any such blanket Insurance Policy in
a timely fashion in accordance with the terms of such policy. Each Special
Servicer, to the extent consistent with the Servicing Standard, may maintain
earthquake insurance on REO Properties for which it is the applicable Special
Servicer, provided coverage is available at commercially reasonable rates.

            (b) If a Master Servicer or Special Servicer causes any Mortgaged
Property to be covered by a master single interest Insurance Policy with a
Qualified Insurer naming such Master Servicer or such Special Servicer, as the
case may be, as the loss payee, then to the extent such Insurance Policy
provides protection equivalent to the individual policies otherwise required,
such Master Servicer or Special Servicer shall conclusively be deemed to have
satisfied its obligation to cause such insurance to be maintained on the related
Mortgaged Properties. If a Master Servicer or Special Servicer, as applicable,
causes any Mortgaged Property or REO Property to be covered by such master
single interest Insurance Policy, the incremental costs of such insurance
applicable to such Mortgaged Property or REO Property (i.e., other than any
minimum or standby premium payable for such policy whether or not any Mortgaged
Property or REO Property is covered thereby) shall be paid by the applicable
Master Servicer as a Servicing Advance. Such master single interest Insurance
Policy may contain a deductible clause, in which case the applicable Master
Servicer or the applicable Special Servicer, as the case may be, shall, if (A)
there shall not have been maintained on the related Mortgaged Property or REO
Property a policy otherwise complying with the provisions of Section 3.07(a) and
(B) there shall have been one or more losses which would have been covered by
such policy had it been maintained, deposit into the Collection Account
maintained by the applicable Master Servicer from such Master Servicer's or such
Special Servicer's own funds the amount not otherwise payable under the master
single interest Insurance Policy because of such deductible clause, to the
extent that any such deductible exceeds the deductible limitation that pertained
to the related Loan or Serviced Loan Combination, or, in the absence of any such
deductible limitation, the deductible limitation which is consistent with the
Servicing Standard.

            (c) Each of the Master Servicers and Special Servicers shall
maintain, at their own expense, a blanket fidelity bond (a "Fidelity Bond") and
an errors and omissions insurance policy with a Qualified Insurer, with coverage
on all of its officers or employees acting in any capacity requiring such
persons to handle funds, money, documents or paper relating to the Loans and/or
Junior Loans ("Master Servicer Employees," in the case of a Master Servicer, and
"Special Servicer Employees," in the case of a Special Servicer). Any such
Fidelity Bond and errors and omissions insurance shall protect and insure such
Master Servicer or such Special Servicer, as applicable, against losses,
including forgery, theft, embezzlement, fraud, errors and omissions, failure to
maintain any insurance policies required pursuant to the Agreement and negligent
acts of such Master Servicer's Master Servicer Employees or such Special
Servicer's Special Servicer Employees, as applicable. The errors and omissions
policy of a Master Servicer or Special Servicer, as applicable, shall also
protect and insure such Master Servicer or such Special Servicer, as applicable,
against losses in connection with the release or satisfaction of a Loan or
Serviced Loan Combination without having obtained payment in full of the
indebtedness secured thereby. No provision of this Section requiring such
Fidelity Bond and errors and omissions insurance shall diminish or relieve any
Master Servicer or Special Servicer from its duties and obligations as set forth
in this Agreement.

            The minimum coverage under any such Fidelity Bond and errors and
omissions insurance policy shall be at least equal to the greater of (i) the
amount necessary for the applicable Master Servicer or applicable Special
Servicer to qualify as a FNMA or FHLMC servicer or in an amount that would meet
the requirements of prudent institutional commercial mortgage loan servicers for
similar transactions, and (ii) $1,000,000. Notwithstanding the foregoing, so
long as the long-term debt or the deposit obligations or claims-paying ability
of a Master Servicer or Special Servicer (or its immediate or remote parent) is
rated at least "A" by S&P and Fitch and "A2" by Moody's, such Master Servicer or
such Special Servicer, respectively, shall be allowed to provide self-insurance
with respect to a Fidelity Bond and such errors and omissions policy. Coverage
of a Master Servicer or a Special Servicer under a policy or bond obtained by an
Affiliate of such Master Servicer or such Special Servicer and providing the
coverage required by this Section 3.07(c) shall satisfy the requirements of this
Section 3.07(c).

            Each of the Special Servicers and Master Servicers shall promptly
report in writing to the Trustee any material changes that may occur in its
respective Fidelity Bonds, if any, and/or its respective errors and omissions
Insurance Policies, as the case may be, and will furnish to the Trustee copies
of all binders and policies or certificates evidencing that such bonds, if any,
and insurance policies are in full force and effect.

            (d) With respect to the Loans or Serviced Loan Combinations that (i)
require earthquake insurance, or (ii) (A) at the date of origination were
secured by Mortgaged Properties on which the related Borrower maintained
earthquake insurance and (B) have provisions which enable the applicable Master
Servicer to continue to require the related Borrower to maintain earthquake
insurance, the applicable Master Servicer shall require the related Borrower to
maintain such insurance in the amount, in the case of clause (i), required by
the related Loan or Serviced Loan Combination and in the amount, in the case of
clause (ii), maintained at origination, in each case, to the extent such amounts
are available at commercially reasonable rates.

            (e) Each Master Servicer and each Special Servicer shall review and
be familiar with the terms and conditions relating to enforcing claims and shall
monitor the dates by which any claim or action is required to be taken under
each insurance policy relating to a Loan or Serviced Loan Combination for which
it is the applicable Master Servicer or the applicable Special Servicer, as the
case may be, to realize the full value of such policy for the benefit of
Certificateholders (and, if a Serviced Loan Combination is involved, the related
Junior Loan Holder(s), if any).

            (f) If, as of the Closing Date, a Mortgaged Property (other than an
REO Property) securing a Loan or Serviced Loan Combination shall be in a
federally designated special flood hazard area (if flood insurance has been made
available), or if the applicable Master Servicer becomes aware, in performing
its duties under this Agreement, that such a Mortgaged Property becomes located
in such area by virtue of remapping conducted by the Federal Emergency
Management Agency, then the applicable Master Servicer will use its reasonable
efforts to cause the related Borrower (in accordance with applicable law and the
terms of the related Loan Documents) to maintain, and, if the related Borrower
shall default in any such obligation to so maintain, the applicable Master
Servicer shall itself maintain, to the extent available at commercially
reasonable rates (as determined by such Master Servicer in accordance with the
Servicing Standard) and the Trustee as mortgagee has an insurable interest in
the subject Mortgaged Property, flood insurance in respect thereof, but only to
the extent the related Loan or Serviced Loan Combination permits the mortgagee
to require such coverage and the maintenance of such coverage is consistent with
the Servicing Standard. Such flood insurance shall be in an amount equal to the
least of (i) the unpaid principal balance of the related Loan or Serviced Loan
Combination, (ii) the maximum amount of insurance which is available under the
Flood Disaster Protection Act of 1973, as amended, and (iii) the amount required
by the related Loan Documents. If the cost of any insurance described above is
not borne by the Borrower, the applicable Master Servicer shall promptly make a
Servicing Advance for such costs, subject to Section 3.03(c).

            (g) During all such times as any REO Property acquired in respect of
a Loan or Serviced Loan Combination is located in a federally designated special
flood hazard area, the applicable Special Servicer shall cause to be maintained,
to the extent available at commercially reasonable rates (as determined by such
Special Servicer in accordance with the Servicing Standard), a flood insurance
policy meeting the requirements of the current guidelines of the Federal
Insurance Administration in an amount equal to the least of (i) the unpaid
principal balance of the related Loan or Serviced Loan Combination, (ii) the
maximum amount of insurance which is available under the Flood Disaster
Protection Act of 1973, as amended, and (iii) the amount required by the related
Loan Documents. The cost of any such flood insurance with respect to an REO
Property shall be an expense of the Trust Fund payable out of the related REO
Account pursuant to Section 3.16(c) or, if the amount on deposit therein is
insufficient therefor, paid by the applicable Master Servicer as a Servicing
Advance.

            (h) The applicable Master Servicer shall, to the extent permitted by
the related Loan Documents, require that each policy of business income
insurance maintained by a Borrower under any Loan have a minimum term of at
least 12 months.

            (i) Within 45 days after the Closing Date, the applicable Master
Servicer shall notify each Environmental Insurer under any Environmental
Insurance Policy relating to a Loan or Serviced Combination Loan for which such
Master Servicer is the applicable Master Servicer that (A) both such Master
Servicer and the applicable Special Servicer shall be sent notices under such
Environmental Insurance Policy and (B) the Trustee, on behalf of the Trust,
shall be the loss payee under such Environmental Insurance Policy. The
applicable Master Servicer and the applicable Special Servicer shall abide by
the terms and conditions precedent to payment of claims under such Environmental
Insurance Policy and shall take all such action as may be required to comply
with the terms and provisions of such policy in order to maintain, in full force
and effect, such policy.

            (j) In the event that the applicable Master Servicer has actual
knowledge of any event (an "Insured Environmental Event") giving rise to a claim
under any Environmental Insurance Policy in respect of any Loan or Serviced
Combination Loan covered thereby, such Master Servicer shall, in accordance with
the terms of such Environmental Insurance Policy and the Servicing Standards,
timely make a claim thereunder with the appropriate insurer and shall take such
other actions in accordance with the Servicing Standards which are necessary
under such Environmental Insurance Policy in order to realize the full value
thereof for the benefit of the Certificateholders (and, if such Insured
Environmental Event relates to any Serviced Loan Combination, for the benefit of
any related Companion Loan Holder or any related Junior Loan Holder, as the case
may be). Any legal fees, premiums or other out-of-pocket costs incurred in
accordance with the Servicing Standards under an Environmental Insurance Policy
shall be paid by the applicable Master Servicer and shall be reimbursable to it
as a Servicing Advance.

            In the event that the applicable Master Servicer receives notice of
any termination of any Environmental Insurance Policy that relates to one or
more of the Loans or Serviced Combination Loans, such Master Servicer shall,
within three Business Days after receipt of such notice, notify the applicable
Special Servicer, the Directing Certificateholder, the Rating Agencies and the
Trustee of such termination in writing. Upon receipt of such notice, the
applicable Master Servicer or the applicable Special Servicer shall address such
termination in accordance with Section 3.07(a) in the same manner as it would
the termination of any other Insurance Policy required under the related Loan
Documents.

            Section 3.08 Enforcement of Due-On-Sale and Due-On-Encumbrance
Clauses; Assumption Agreements; Defeasance Provisions; Other Provisions.

            (a) As to each Loan or Serviced Loan Combination which contains a
provision in the nature of a "due-on-sale" clause, which by its terms:

            (i) provides that such Loan or Serviced Loan Combination shall (or
      may at the mortgagee's option) become due and payable upon the sale or
      other transfer of an interest in the related Mortgaged Property or the
      related Borrower, or

            (ii) provides that such Loan or Serviced Loan Combination may not be
      assumed without the consent of the mortgagee in connection with any such
      sale or other transfer,

the applicable Master Servicer shall (for any Loan that is not a Specially
Serviced Loan) provide notice to the applicable Special Servicer of any request
for a waiver thereof, and the applicable Master Servicer or the applicable
Special Servicer, as the case may be, shall enforce such due-on-sale clause,
unless such Master Servicer or such Special Servicer, as applicable, determines,
in accordance with the Servicing Standard, and subject to Section 3.08(d) and
either Section 3.21(e) or Section 3.32, as applicable, that (1) not declaring an
Event of Default (as defined in the related Mortgage) or (2) granting such
consent would be likely to result in a greater recovery (or an equal recovery,
provided the other conditions for an assumption or waiver of a due-on-sale
clause, if any, are met), on a net present value basis (discounting at the
related Mortgage Rate), than would enforcement of such clause or the failure to
grant such consent. If the applicable Master Servicer or the applicable Special
Servicer, as applicable, determines that (1) not declaring an Event of Default
(as defined in the related Mortgage) or (2) granting such consent would be
likely to result in a greater recovery (or an equal recovery, provided the other
conditions for an assumption or waiver of a due-on-sale clause, if any, are
met), the applicable Master Servicer or the applicable Special Servicer, as the
case may be, shall take or enter into an assumption agreement from or with the
proposed transferee as obligor thereon, provided that (x) the credit status of
the prospective transferee is in compliance with the Servicing Standard and the
terms of the related Mortgage and (y) with respect to any Loan which is a
Significant Loan, the applicable Master Servicer or the applicable Special
Servicer, as the case may be, shall have received written confirmation from each
of the Rating Agencies that such assumption would not, in and of itself, cause a
downgrade, qualification or withdrawal of any of the then-current ratings
assigned to the Certificates or any of the certificates issued pursuant to a
securitization containing a Companion Loan. The applicable Master Servicer or
the applicable Special Servicer, as the case may be, shall use reasonable
efforts to cause the related Borrower to pay the costs of such confirmation,
otherwise, such costs shall be a Trust Fund Expense.

            (b) None of the Master Servicers or Special Servicers shall (x)
consent to the foreclosure of any Mezzanine Loan other than by a Permitted
Mezzanine Loan Holder or (y) consent to the transfer of any Mezzanine Loan
except to a Permitted Mezzanine Loan Holder, except, in each case, as otherwise
provided in Section 3.08(a). Neither the consent of the applicable Master
Servicer nor the consent of the applicable Special Servicer shall be required
for the foreclosure by a Permitted Mezzanine Loan Holder if an event of default
has been declared under the related Loan or Serviced Loan Combination (and each
Rating Agency has been notified of such event of default), if such consent is
not required in the related mezzanine intercreditor agreement, and the related
mezzanine lender complies with the applicable conditions set forth in the
related intercreditor agreement.

            (c) As to each Loan or Serviced Loan Combination which contains a
provision in the nature of a "due-on-encumbrance" clause, which by its terms:

            (i) provides that such Loan or Serviced Loan Combination shall (or,
      at the mortgagee's option, may) become due and payable upon the creation
      of any additional lien or other encumbrance on the related Mortgaged
      Property or interests in the related Borrower, or

            (ii) requires the consent of the mortgagee to the creation of any
      such additional lien or other encumbrance on the related Mortgaged
      Property or interests in the related Borrower,

the applicable Master Servicer shall provide notice to the applicable Special
Servicer of any request for a waiver thereof, and the applicable Master Servicer
or the applicable Special Servicer, as the case may be, shall enforce such
due-on-encumbrance clause and in connection therewith shall (i) accelerate
payments thereon or (ii) withhold its consent to such lien or encumbrance unless
the applicable Master Servicer or the applicable Special Servicer, as the case
may be, (x) determines, in accordance with the Servicing Standard, and subject
to Section 3.08(d) and either Section 3.21(e) or 3.32, as applicable, that (1)
not accelerating payments on such Loan or (2) granting such consent would result
in a greater recovery (or an equal recovery, provided the other conditions for a
waiver of a due-on-encumbrance clause, if any, are met) on a net present value
basis (discounting at the related Mortgage Rate) than would enforcement of such
clause or the failure to grant such consent and (y) with respect to any Loan
that is (1) a Significant Loan or (2) together with the proposed subordinate
debt would have a combined debt service coverage ratio of less than 1.20x or a
combined loan-to-value ratio of 85% or greater, has received written
confirmation from each of the Rating Agencies to the effect that (1) not
accelerating such payments or (2) granting such consent would not, in and of
itself, cause a downgrade, qualification or withdrawal of any of the
then-current ratings assigned to the Certificates. To the extent permitted by
the Loan Documents, the applicable Master Servicer or the applicable Special
Servicer, as the case may be, will use reasonable efforts to cause the Borrower
to pay the costs associated with such Rating Agency confirmation, otherwise it
is considered a Trust Fund expense.

            (d) Notwithstanding subsections (a) and (c) above, in no event shall
the applicable Master Servicer waive any rights under a "due-on-sale" or
"due-on-encumbrance" clause with respect to any Loan or Serviced Loan
Combination unless (i) the applicable Master Servicer shall have notified the
applicable Special Servicer of such waiver, (ii) the applicable Master Servicer
shall have submitted the applicable Master Servicer's written recommendation and
analysis to the applicable Special Servicer, (iii) the applicable Master
Servicer shall have submitted to the applicable Special Servicer the documents
within the possession of the applicable Master Servicer that are reasonably
requested by the applicable Special Servicer, (iv) the applicable Special
Servicer shall have approved such waiver (which approval shall be deemed granted
if not denied within 15 Business Days of its receipt of the applicable Master
Servicer's recommendation and any additional documents and information that the
applicable Special Servicer may reasonably request), notified the Directing
Certificateholder of the request for the waiver and of its own approval and
submitted to the Directing Certificateholder each of the documents submitted to
the applicable Special Servicer by the applicable Master Servicer and (v) the
Directing Certificateholder shall have informed the applicable Special Servicer
that it has approved (such approval subject to the last paragraph of Section
3.21(e) or the penultimate paragraph of Section 3.32(b), as applicable), such
waiver; provided, however, that the applicable Special Servicer shall advise the
Directing Certificateholder of its approval (if any) of such waiver promptly
(but in no case to exceed 10 Business Days) following its receipt of such
notice, recommendations, analysis, and reasonably requested documents from the
applicable Master Servicer; and, provided, further, that, if the Directing
Certificateholder does not reject such recommendation within five Business Days
of its receipt of the applicable Special Servicer's recommendation and any
additional documents and information that the Directing Certificateholder may
reasonably request, then the waiver shall be deemed approved.

            Notwithstanding the foregoing provisions, and regardless of whether
a particular Co-op Loan in Servicing Group B contains specific provisions
regarding the incurrence of subordinate debt, or prohibits the incurrence of
subordinate debt, or requires the consent of the mortgagee in order to incur
subordinate debt, Master Servicer No. 2 may, nevertheless, in accordance with
the Servicing Standard, without the need to obtain any consent hereunder (and
without the need to obtain a ratings confirmation), permit the related Borrower
to incur subordinate debt if the NCB Subordinate Debt Conditions have been met
(as certified in writing to the Trustee and the Directing Certificateholder by
Master Servicer No. 2 no later than five Business Days prior to the making of
the subject subordinate loan without right of reimbursement from the Trust)
which certification shall include notice of the circumstances of the waiver,
including information necessary for the Directing Certificateholder to determine
whether the NCB Subordinate Debt Conditions have been satisfied); provided that,
subject to the related Loan Documents and applicable law, Master Servicer No. 2
shall not waive any right it has, or grant any consent it is otherwise entitled
to withhold, in accordance with any related "due-on-encumbrance" clause under
any Co-op Loan, pursuant to this paragraph, unless in any such case, all
associated costs and expenses are covered without any expense to the Trust; and
provided, further, that this paragraph only applies to Co-op Loans that are in
Servicing Group B.

            (e) Nothing in this Section 3.08 shall constitute a waiver of the
Trustee's right, as the mortgagee of record, to receive notice of any assumption
of a Loan, any sale or other transfer of the related Mortgaged Property or the
creation of any additional lien or other encumbrance with respect to such
Mortgaged Property.

            (f) Except as otherwise permitted by Section 3.20, no Master
Servicer or Special Servicer shall agree to modify, waive or amend any term of
any Loan or Serviced Loan Combination in connection with the taking of, or the
failure to take, any action pursuant to this Section 3.08.

            (g) Notwithstanding any other provisions of this Section 3.08, the
applicable Master Servicer may grant a Borrower's request for consent to subject
the related Mortgaged Property to an easement, right-of-way or similar agreement
for utilities, access, parking, public improvements or another purpose and may
consent to subordination of the related Loan to such easement, right-of-way or
similar agreement, provided that such Master Servicer shall have determined (i)
in accordance with the Servicing Standard that such easement, right-of-way or
similar agreement will not materially interfere with the then-current use of the
related Mortgaged Property or the security intended to be provided by such
Mortgage and will not materially and adversely affect the value of such
Mortgaged Property and (ii) that no Trust REMIC will fail to qualify as a REMIC
as a result thereof and that no tax on "prohibited transactions" or
"contributions" after the Closing Date would be imposed on any Trust REMIC as a
result thereof, provided, further, that such Master Servicer shall cause the
Borrower to pay the costs (including attorneys' fees and expenses) associated
with the determination described in clause (ii).

            (h) With respect to any Loan, Companion Loan or Junior Loan that
permits release of Mortgaged Properties through defeasance (each, a "Defeasance
Loan"), to the extent permitted under the related Loan Documents:

            (i) The applicable Master Servicer shall effect such defeasance only
      through the purchase of non-callable government securities satisfying the
      REMIC Provisions ("Defeasance Collateral"), which purchase shall be made
      in accordance with the terms of such Defeasance Loan (except that such
      Master Servicer is authorized, but not required, to accept Defeasance
      Collateral meeting the foregoing requirements in spite of more restrictive
      requirements of the related Loan Documents); provided, however, that such
      Master Servicer shall not accept the amounts paid by the related Borrower
      to effect defeasance until such Defeasance Collateral has been identified,
      and provided, further, that no defeasance shall be accepted within two
      years after the Closing Date.

            (ii) If such Loan, Companion Loan or Junior Loan permits the
      assumption of the obligations of the related Borrower by a successor
      Borrower, the applicable Master Servicer shall cause the Borrower or such
      successor Borrower to pay all expenses incurred in connection with the
      establishment of a successor Borrower that shall be a Single-Purpose
      Entity and to cause an assumption by such successor Borrower of the
      defeased obligations under the related Note. At Borrower's expense, such
      Master Servicer shall be permitted to establish a single Single-Purpose
      Entity to assume the defeased obligations under all of the Loan(s), any
      Companion Loan and/or Junior Loan(s) that will be defeased.

            (iii) The applicable Master Servicer shall cause to be delivered an
      Opinion of Counsel, at such Borrower's expense, to the effect that the
      assignment of the Defeasance Collateral to the Trustee is valid and
      enforceable (subject to certain customary limitations) and that the
      Trustee has a first priority security interest in the Defeasance
      Collateral.

            (iv) The applicable Master Servicer shall obtain, at the related
      Borrower's expense, a certificate from an Independent certified public
      accountant certifying that the Defeasance Collateral is sufficient to make
      all scheduled payments under the related Note.

            (v) Prior to permitting release of any Mortgaged Property through
      defeasance, (X) with respect to S&P, if such defeasance or partial
      defeasance or such Mortgaged Property relates to (1) any Loan that
      represents one of the 10 largest Loans (which for purposes of this clause
      (v) shall include groups of Crossed Loans and groups of Loans made to
      affiliated Borrowers) or (2) has a Stated Principal Balance at the time of
      defeasance of more than $20,000,000 or represents more than 5% of the
      aggregate Stated Principal Balance of all Loans at such time, the
      applicable Master Servicer, at the expense of the related Borrower, shall
      obtain written confirmation from S&P that such defeasance would not, in
      and of itself, result in a downgrade, qualification or withdrawal of any
      of the then-current ratings assigned to the Certificates; provided that,
      in the case of any Loan that is not a Loan covered by clause (1) or (2),
      the applicable Master Servicer shall be required to obtain confirmation
      from S&P unless the applicable Master Servicer delivers to S&P a notice in
      the form attached hereto as Exhibit P and (Y) with respect to Fitch, if
      such defeasance or partial defeasance or such Mortgaged Property relates
      to any Loan that represents one of the 10 largest Loans of all Loans at
      such time, the applicable Master Servicer shall obtain, at the expense of
      the related Borrower, written confirmation from Fitch that such defeasance
      would not, in and of itself, result in a downgrade, qualification or
      withdrawal of any of the then-current ratings assigned to the
      Certificates.

            (vi) Subject to the related Loan Documents, neither the applicable
      Master Servicer nor the applicable Special Servicer shall permit the
      release of any Mortgaged Property through defeasance unless the related
      Borrower establishes to the satisfaction of such Master Servicer or such
      Special Servicer, as the case may be, that the lien on such Mortgaged
      Property will be released to facilitate the disposition thereof or to
      facilitate any other customary commercial transaction.

            (vii) Prior to permitting release of any Mortgaged Property through
      defeasance, the applicable Master Servicer shall require such Borrower to
      deliver or cause to be delivered an Opinion of Counsel to the effect that
      such release will not cause any Trust REMIC to fail to qualify as a REMIC
      at any time that any Certificates are outstanding or cause a tax to be
      imposed on the Trust Fund or any Trust REMIC.

            (viii) Neither the applicable Master Servicer nor the applicable
      Special Servicer shall permit a partial defeasance with respect to any
      Loan, Companion Loan or Junior Loan unless the value of the Defeasance
      Collateral is at least the amount required pursuant to the related Loan
      Documents with respect to such partial defeasance.

To the extent not prohibited under the related Loan Documents, any costs to the
applicable Master Servicer of obtaining legal advice to make the determinations
required to be made by it pursuant to this Section 3.08(h), or obtaining the
Rating Agency confirmations required by this Section 3.08(h), shall be borne by
the related Borrower as a condition to such Master Servicer's obligation to
effect the defeasance of the related Loan or Junior Loan or advanced as a
Servicing Advance by such Master Servicer, and otherwise shall be a Trust Fund
expense. The applicable Master Servicer shall deliver all documents relating to
the defeasance of any Loan to the Trustee for inclusion in the related Mortgage
File.

            (i) With respect to any Loan or Serviced Loan Combination that
permits the related Borrower to incur subordinate indebtedness secured by the
related Mortgaged Property or by interests in the related Borrower, except for
Co-op Loans as to which the NCB Subordinate Debt Conditions are satisfied, the
applicable Master Servicer or the applicable Special Servicer shall enforce the
rights of the lender, if any, under the Loan Documents to require such Borrower
to require the lender of such subordinate indebtedness to enter into a
subordination and standstill agreement with the lender. The applicable Master
Servicer or Special Servicer, as appropriate, shall process such documentation.

            (j) With respect to any Loan or Companion Loan, subject to the
related Loan Documents, neither the applicable Master Servicer nor the
applicable Special Servicer shall permit the related Borrower to substitute any
real property, any rights with respect to real property, or any other real
property interest whatsoever for the Mortgaged Property securing such Loan as of
the Closing Date without receipt of (i) an Opinion of Counsel, at the expense of
the Borrower, to the effect that the substitution will not cause such Loan or
Companion Loan to fail to qualify as a "qualified mortgage" as defined under
Section 860G(a)(3) of the Code while such Loan is owned by a Trust REMIC and
(ii) (A) with respect to any Loan that, individually or together with all other
Loans, if any, that are in the same Crossed Group as such Loan, is one of the 10
largest Loans by Stated Principal Balance of all Loans at such time,
confirmation from the Moody's and Fitch and (B) with respect to any Loan,
confirmation from S&P, as applicable, that such substitution of any real
property, any rights with respect to real property, or any other property
interest whatsoever for the Mortgaged Property securing such Loan will not cause
a withdrawal, downgrade or qualification of the then-current ratings of the
Certificates.

            Section 3.09 Realization Upon Defaulted Loans.

            (a) Each Special Servicer shall, subject to subsections (b) through
(d) of this Section 3.09, exercise reasonable efforts, consistent with the
Servicing Standard, to foreclose upon or otherwise comparably convert (which may
include an REO Acquisition) the ownership of any property securing such Loans,
Companion Loan and/or Junior Loans for which it is the applicable Special
Servicer as come into and continue in default as to which no satisfactory
arrangements can be made for collection of delinquent payments, and which are
not released from the Trust Fund pursuant to any other provision hereof. In any
case in which a Mortgaged Property shall have suffered damage such that the
complete restoration of such property is not fully reimbursable by the hazard
insurance policies or flood insurance policies required to be maintained
pursuant to Section 3.07, the applicable Master Servicer shall not be required
to make a Servicing Advance and expend funds toward the restoration of such
property unless the applicable Special Servicer has determined in its reasonable
judgment in accordance with the Servicing Standard that such restoration will
increase the net proceeds of liquidation of such Mortgaged Property to
Certificateholders (and, in the case of any Serviced Loan Combination any
Companion Loan Holders and/or Junior Loan Holder(s), as applicable), taken as a
collective whole, after reimbursement to the applicable Master Servicer for such
Servicing Advance and interest thereon and such Master Servicer has determined
that such Servicing Advance together with accrued and unpaid interest thereon
will be recoverable by such Master Servicer out of the proceeds of liquidation
of such Mortgaged Property, as contemplated in Section 3.05(a). The applicable
Master Servicer shall, subject to Section 3.03(c), make Servicing Advances to
cover all costs and expenses incurred by the applicable Special Servicer in any
such proceedings, provided that, in each case, such cost or expense would not,
if incurred, constitute a Nonrecoverable Servicing Advance. The applicable
Master Servicer may pay out of such Master Servicer's Collection Account as an
expense of the Trust Fund costs or expenses that would otherwise be determined
to be a Nonrecoverable Servicing Advance as and to the extent provided in the
next to last paragraph of Section 3.03(c).

            Nothing contained in this Section 3.09 shall be construed to require
the applicable Special Servicer, on behalf of the Trust Fund, to make a bid on
any Mortgaged Property at a foreclosure sale or similar proceeding that is in
excess of the fair market value of such property, as determined by such Special
Servicer in its reasonable judgment taking into account, as applicable, among
other factors, the period and amount of any delinquency on the affected Loan or
Serviced Loan Combination, the occupancy level and physical condition of the
related Mortgaged Property, the state of the local economy, the obligation to
dispose of any REO Property within the time period specified in Section 3.16(a)
and the results of any Appraisal obtained pursuant to the following sentence,
all such bids to be made in a manner consistent with the Servicing Standard. If
and when the applicable Special Servicer deems it necessary and prudent for
purposes of establishing the fair market value of any Mortgaged Property
securing a Specially Serviced Loan, whether for purposes of bidding at
foreclosure or otherwise, such Special Servicer is authorized to have an
Appraisal performed with respect to such property, the cost of which Appraisal
shall be paid by the applicable Master Servicer as a Servicing Advance.

            (b) The applicable Special Servicer shall not acquire any personal
property pursuant to this Section 3.09 unless either:

            (i) such personal property is incident to real property (within the
      meaning of Section 856(e)(1) of the Code) so acquired by the applicable
      Special Servicer; or

            (ii) the applicable Special Servicer shall have obtained an Opinion
      of Counsel (the cost of which shall be a Servicing Advance) to the effect
      that the holding of such personal property by the Trust Fund will not
      cause the imposition of a tax on any Trust REMIC under the REMIC
      Provisions or cause any Trust REMIC to fail to qualify as a REMIC at any
      time that any 828-850 Madison Avenue Loan REMIC Regular Interest
      Uncertificated Lower-Tier Interest or Certificate is outstanding.

            (c) Notwithstanding the foregoing provisions of this Section 3.09,
the applicable Special Servicer shall not, on behalf of the Trustee, obtain
title to a Mortgaged Property in lieu of foreclosure or otherwise, or take any
other action with respect to any Mortgaged Property, if, as a result of any such
action, the Trustee, on behalf of the Certificateholders and, with respect to
any Serviced Loan Combination, the related Companion Loan Holder and Junior Loan
Holder(s), would be considered to hold title to, to be a
"mortgagee-in-possession" of, or to be an "owner" or "operator" of such
Mortgaged Property within the meaning of CERCLA or any comparable law, unless
(as evidenced by an Officer's Certificate to such effect delivered to the
Trustee) such Special Servicer has previously determined in accordance with the
Servicing Standard, based on an Environmental Assessment of such Mortgaged
Property performed within the preceding 12 months by an Independent Person who
regularly conducts Environmental Assessments and/or the existence of an
Environmental Insurance Policy covering such Mortgaged Property, that:

            (i) the Mortgaged Property is in compliance with applicable
      environmental laws and regulations or, if not, that taking such actions as
      are necessary to bring the Mortgaged Property in compliance therewith is
      reasonably likely to produce a greater recovery on a present value basis
      than not taking such actions; and

            (ii) there are no circumstances or conditions present at the
      Mortgaged Property relating to the use, management or disposal of
      Hazardous Materials for which investigation, testing, monitoring,
      containment, clean-up or remediation could be required under any
      applicable environmental laws and regulations or, if such circumstances or
      conditions are present for which any such action could be required, that
      taking such actions with respect to such Mortgaged Property is reasonably
      likely to produce a greater recovery on a present value basis than not
      taking such actions.

            The cost of any such Environmental Assessment and the cost of any
remedial, corrective or other further action contemplated by clause (i) and/or
clause (ii) of the preceding sentence shall be paid by the applicable Master
Servicer as a Servicing Advance. If any such Environmental Assessment so
warrants, the applicable Special Servicer shall, at the expense of the Trust
Fund (or, a Serviced Loan Combination is involved, at the expense of the Trust
Fund and the related Companion Loan Holder or Junior Loan Holders, allocable
between them as provided in the related Intercreditor Agreement), perform such
additional environmental testing as it deems necessary and prudent to determine
whether the conditions described in clauses (i) and (ii) of the second preceding
sentence have been satisfied.

            (d) If (i) the environmental testing contemplated by subsection (c)
above establishes that either of the conditions set forth in clauses (i) and
(ii) of the first sentence thereof has not been satisfied with respect to any
Mortgaged Property securing a Specially Serviced Loan and (ii) there has been no
breach of any of the representations and warranties set forth in or required to
be made pursuant to Section 6 of the related Mortgage Loan Purchase Agreement
for which the related Mortgage Loan Seller or other Responsible Party could be
required to repurchase such Defaulted Loan pursuant to Section 7 of the related
Mortgage Loan Purchase Agreement or pursuant to the Column Performance
Guarantee, then the applicable Special Servicer shall take such action as it
deems to be in the best economic interest of the Trust Fund (and in the case of
any Serviced Loan Combination, of the related Companion Loan Holders and Junior
Loan Holder(s)), taken as a collective whole, and consistent with the Servicing
Standard (other than proceeding to acquire title to the Mortgaged Property) and
is hereby authorized at such time as it deems appropriate to release such
Mortgaged Property from the lien of the related Mortgage.

            (e) The applicable Special Servicer shall provide or make available
electronically written reports and a copy of any Environmental Assessments to
the Trustee, the applicable Master Servicer, the Directing Certificateholder,
any Requesting Subordinate Certificateholder (at the expense of such requesting
Holder) and, with respect to any Serviced Loan Combination, if such
Environmental Assessment relates to such Serviced Loan Combination, to each
related Companion Loan Holder and Junior Loan Holder (at the expense of the
Junior Loan Holder, to the extent permitted by the relevant Intercreditor
Agreement), as applicable, monthly regarding any actions taken by such Special
Servicer with respect to any Mortgaged Property securing a Specially Serviced
Loan as to which the environmental testing contemplated in subsection (c) above
has revealed that either of the conditions set forth in clauses (i) and (ii) of
the first sentence thereof has not been satisfied, in each case until the
earlier to occur of satisfaction of both such conditions, repurchase or
replacement of the related Loan by the related Responsible Party or release of
the lien of the related Mortgage on such Mortgaged Property. The Trustee shall,
upon request, forward all such reports to the Certificateholders (at the expense
of the requesting party) and each Rating Agency.

            (f) The applicable Master Servicer shall report to the Internal
Revenue Service and the related Borrower, in the manner required by applicable
law, the information required to be reported regarding any Mortgaged Property
that is abandoned or foreclosed, the receipt of mortgage interest received in a
trade or business and the forgiveness of indebtedness with respect to any
Mortgaged Property required by Sections 6050J, 6050H and 6050P, respectively, of
the Code. Annually in each January, the applicable Special Servicer shall
provide the applicable Master Servicer with all information or reports necessary
to enable the applicable Master Servicer to fulfill its obligations under this
Section 3.09(f) (and shall from time to time provide additional information or
reports promptly upon such Master Servicer's request therefor). The applicable
Master Servicer shall deliver a copy of any such report to the Trustee and the
applicable Special Servicer.

            (g) The applicable Special Servicer shall have the right to
determine, in accordance with the Servicing Standard, the advisability of the
maintenance of an action to obtain a deficiency judgment if the state in which
the Mortgaged Property is located and the terms of the subject Loan permit such
an action.

            (h) The applicable Special Servicer shall maintain accurate records,
prepared by one of its Servicing Officers, of each Final Recovery Determination
in respect of a Loan or REO Property and the basis thereof. Each Final Recovery
Determination shall be evidenced by an Officer's Certificate delivered to the
Trustee, the applicable Master Servicer and if related to a Serviced Loan
Combination, to each related Companion Loan Holder and Junior Loan Holder no
later than the next succeeding P&I Advance Determination Date.

            Section 3.10 Trustee to Cooperate; Release of Mortgage Files.

            (a) Upon the payment in full of any Loan, the purchase of an A Loan
by a related Junior Loan Holder or Companion Loan Holder pursuant to the related
Intercreditor Agreement, the purchase of any Loan by the holder of a related
mezzanine loan in connection with a default pursuant to any related mezzanine
loan intercreditor agreement or the receipt by the applicable Master Servicer or
the applicable Special Servicer, as the case may be, of a notification that
payment in full shall be escrowed in a manner customary for such purposes, the
applicable Master Servicer or applicable Special Servicer will promptly notify
the Trustee and request delivery of the related Mortgage File and, in the case
of the payment in full of any Junior Loan or the purchase thereof by the holder
of a related mezzanine loan, the applicable Master Servicer or the applicable
Special Servicer, as the case may be, shall promptly so notify each related
Junior Loan Holder and request delivery to it of the related Note. Any such
notice and request shall be in the form of a Request for Release (and shall
include two copies) signed by a Servicing Officer (or in a mutually agreeable
electronic format that will, in lieu of a signature on its face, originate from
a Servicing Officer) and shall include a statement to the effect that all
amounts received or to be received in connection with such payment which are
required to be deposited in the applicable Master Servicer's Collection Account
pursuant to Section 3.04(a) or remitted to the applicable Master Servicer to
enable such deposit, have been or will be so deposited. Within six Business Days
(or within such shorter period as release can reasonably be accomplished if the
applicable Master Servicer notifies the Trustee of an exigency) of receipt of
such notice and request, the Trustee (or, to the extent provided in Section
3.01(c), the applicable Master Servicer or the applicable Special Servicer, as
applicable) shall execute such instruments of satisfaction, deeds of
reconveyance and other documents as shall have been furnished to it by the
applicable Master Servicer, and the Trustee shall release and deliver the
related Mortgage File to the applicable Master Servicer or applicable Special
Servicer, as the case may be. No expenses incurred in connection with any
instrument of satisfaction or deed of reconveyance shall be chargeable to any
account maintained hereunder.

            (b) From time to time as is appropriate for servicing or foreclosure
of any Loan, Companion Loan or Junior Loan, the applicable Master Servicer or
the applicable Special Servicer shall deliver to the Trustee two copies of a
Request for Release signed by a Servicing Officer (or in a mutually agreeable
electronic format that will, in lieu of a signature on its face, originate from
a Servicing Officer). Upon receipt of the foregoing, the Trustee shall deliver
the Mortgage File or any document therein to the applicable Master Servicer or
the applicable Special Servicer (or a designee), as the case may be. Upon return
of the Mortgage File to the Trustee, the Trustee shall execute an acknowledgment
of receipt.

            (c) The applicable Special Servicer shall be responsible for the
preparation of any court pleadings, requests for trustee's sale or, except as
otherwise contemplated by Section 3.20, other documents necessary to the release
of collateral securing a Loan, Companion Loan or Junior Loan, or to foreclosure
or trustee's sale in respect of a Mortgaged Property or to any legal action
brought to obtain judgment against any Borrower on the Note or Mortgage or to
obtain a deficiency judgment, or to enforce any other remedies or rights
provided by the Note or Mortgage or otherwise available at law or in equity and
shall forward such documents and pleadings to the Trustee and, if applicable,
the related Junior Loan Holder(s) for execution. Within seven Business Days (or
within such shorter period as delivery can reasonably be accomplished if the
applicable Special Servicer notifies the Trustee of an exigency) of receipt
thereof, the Trustee shall execute and deliver to the applicable Special
Servicer any such documents or pleadings. When submitted for signature, such
documents or pleadings shall be accompanied by a certificate of a Servicing
Officer requesting that such pleadings or documents be executed by the Trustee
or any related Companion Loan Holder or Junior Loan Holder and certifying as to
the reason such documents or pleadings are required, that the proposed action is
in the best interest of the Certificateholders (and, in the case of any Serviced
Loan Combination, the related Companion Loan Holders and Junior Loan Holder(s)),
taken as a collective whole, and that the execution and delivery thereof by the
Trustee, any related Junior Loan Holder, as the case may be, will not invalidate
or otherwise affect the lien of the Mortgage, except for the termination of such
a lien upon completion of the foreclosure or trustee's sale. Any power of
attorney granted by the Trustee to a Special Servicer in accordance with Section
3.01(c) may allow for the Special Servicer to take action on behalf of the
Trustee with respect to the matters described in this Section 3.10(c).

            Section 3.11 Servicing Compensation.

            (a) As compensation for its activities hereunder, each Master
Servicer shall be entitled to receive the Master Servicing Fee (subject to the
third, fourth and last paragraphs of this Section 3.11(a)) with respect to each
Loan (including, if applicable, Specially Serviced Loans, Defeasance Loans and
Additional Collateral Loans) for which it is the applicable Master Servicer and
any successor REO Loans with respect thereto at the applicable Master Servicing
Fee Rate. The Master Servicing Fee with respect to any Loan or REO Loan shall
cease to accrue if a Liquidation Event occurs in respect thereof. The Master
Servicing Fee shall be payable monthly, on a loan-by-loan basis, from payments
of interest on the related Loan and REO Revenues allocable as interest on the
related REO Loan. In no event will the applicable Master Servicer or any Primary
Servicer be entitled to retain a servicing fee from the amount of any P&I
Advance, regardless of whether the related Borrower is obligated to reimburse
Master Servicing Fees or Primary Servicing Fees.

            Each Master Servicer, on behalf of itself, the holder of the related
Excess Servicing Strip and the Assignable Primary Servicing Fee, if any, and any
related Primary Servicer, shall be entitled to recover unpaid Master Servicing
Fees and Primary Servicing Fees in respect of any Loan or REO Loan (including
any Specially Serviced Loan, Defeasance Loan or Additional Collateral Loan) for
which such Master Servicer is the applicable Master Servicer out of that portion
of related payments, Insurance and Condemnation Proceeds, Liquidation Proceeds
and REO Revenues (in the case of an REO Loan) allocable as recoveries of
interest, to the extent permitted by Section 3.05(a). Subject to the third and
last paragraphs of this Section 3.11(a), the right of any Master Servicer to
receive the Master Servicing Fee (and, except to the extent set forth in the
Primary Servicing Agreement with respect to a Primary Servicer and except as set
forth in this Section 3.11(a), the related Primary Servicing Fee) may not be
transferred in whole or in part except in connection with the transfer of all of
such Master Servicer's responsibilities and obligations under this Agreement.

            Notwithstanding anything herein to the contrary, Master Servicer No.
1 and/or Master Servicer No. 2 (and their successors and assigns) may at its
option assign or pledge to any third party or retain for itself the related
Excess Servicing Strip, if any, and the related Assignable Primary Servicing
Fee, if any; provided, however, that in the event of any resignation or
termination of such Master Servicer, all or any portion of such Excess Servicing
Strip and/or such Assignable Primary Servicing Fee may be reduced by the Trustee
to the extent reasonably necessary (in the sole discretion of the Trustee) for
the Trustee to obtain a qualified successor Master Servicer and/or Primary
Servicer, as applicable, with respect to the Loans being master serviced and/or
primarily serviced, as applicable, by such resigning or terminated Master
Servicer (which successor may include the Trustee) that meets the requirements
of Section 6.4 and that requires market rate servicing compensation that accrues
at a per annum rate in excess of 0.005% (0.5 basis points). The applicable
Master Servicer shall pay the Excess Servicing Strip, if any, and the Assignable
Primary Servicing Fee, if any, for each Servicing Group to the holder of such
Excess Servicing Strip or the holder of such Assignable Primary Servicing Fee
(i.e., such initial Master Servicer or any such third party), as the case may
be, at such time and to the extent that such Master Servicer is entitled to
receive payment of its Master Servicing Fees hereunder, notwithstanding any
resignation or termination of such Master Servicer hereunder (subject to
reduction pursuant to the preceding sentence).

            The applicable Master Servicer shall retain additional servicing
compensation ("Additional Servicing Compensation") in the form of (i) 100% of
all assumption application fees and 50% of all assumption fees paid by the
Borrowers on all Loans, the 280 Park Avenue Total Loan, the 3434 North
Washington Boulevard Total Loan, the 500 Sansome Office Total Loan and the
828-850 Madison Avenue Total Loan that are not Specially Serviced Loans (but
only when and to the extent that all amounts then due and payable with respect
to such Loans have been paid), (ii) all Penalty Charges actually collected on
each Loan or Companion Loan (other than Specially Serviced Loans) but only when
and to the extent that (A) all amounts then due and payable with respect to such
Loan or Companion Loan (including outstanding interest on all Advances accrued
with respect to such Loan or Companion Loan (including interest on Advances made
by the holder (or servicer) of any Companion Loan have been paid, (B) the Trust
Fund has been reimbursed with respect to any Advances made with respect to such
Loan or Companion Loan, together with interest thereon if such interest was paid
to the applicable Master Servicer, from a source of funds other than Penalty
Charges collected on such Loan, and (C) the Trust Fund has been reimbursed for
any Additional Trust Fund Expenses (including any Special Servicing Fees,
Workout Fees and Liquidation Fees) incurred since the Closing Date with respect
to such Loan or Companion Loan and previously paid from a source other than
Penalty Charges on such Loan or Companion Loan, (iii) charges for beneficiary
statements or demands and amounts collected for checks returned for insufficient
funds, (iv) all commercially reasonable fees actually collected on or with
respect to any Loan for modifications, extensions, earnouts and other actions
for which the applicable Master Servicer is responsible (and the consent of the
applicable Special Servicer is not required) pursuant to Section 3.20 (but only
when and to the extent that all amounts then due and payable after giving effect
to any modification with respect to the related Loan have been paid), (v) 50% of
all commercially reasonable fees actually collected on or with respect to any
Loan for modifications, extensions, earnouts and other actions for which the
consent of the applicable Special Servicer is required pursuant to Section 3.20
(but only when and to the extent that all amounts then due and payable after
giving effect to any modification with respect to the related Loan have been
paid), (vi) reasonable and customary consent fees and fees in connection with
defeasance, if any, of any such Loan and (vii) other customary charges, in each
case only to the extent actually paid by the related Borrower, and such amounts
shall not be required to be deposited in the Collection Account, Companion Loan
Custodial Account or any Junior Loan Custodial Account, as applicable,
maintained by such Master Servicer pursuant to Section 3.04(a). Notwithstanding
anything to the contrary in clause (ii) of the first sentence of this paragraph
or in the last paragraph of Section 3.11(b), (x) the applicable Master Servicer
shall be entitled to that portion, if any, of a Penalty Charge collected on a
Specially Serviced Loan that accrued prior to the related Servicing Transfer
Event and (y) if the applicable Special Servicer has partially waived any
Penalty Charge part of which accrued prior to the related Servicing Transfer
Event, any collections in respect of such Penalty Charge shall be shared pro
rata by the applicable Master Servicer and the applicable Special Servicer based
on the respective portions of such Penalty Charge to which they would otherwise
have been entitled. Without in any way limiting the preceding two sentences of
this paragraph, with respect to Loans which are not Specially Serviced Loans,
(i) any fees payable by the related Borrower with respect to the servicing
activities set forth in Sections 3.08(a), 3.08(c), 3.20(c) and 3.29(d), shall be
considered Additional Servicing Compensation, and such fees that are in the
nature of an application fee shall be payable entirely to the applicable Master
Servicer and any fee payable by the Borrower upon the completion of the
servicing activities set forth in such section shall be shared equally by the
applicable Master Servicer and the applicable Special Servicer and (ii)
compensation payable with respect to servicing activities set forth under
Section 3.08(g), 3.08(h), 3.08(i), 3.08(j), 3.20(b) and 3.20(m) shall be paid
entirely to the applicable Master Servicer.

            Each Master Servicer also shall be entitled to additional servicing
compensation in the form of: (i) interest or other income earned on deposits
relating to the Trust Fund in the Collection Account, Companion Loan Custodial
Account or any Junior Loan Custodial Account maintained by such Master Servicer
in accordance with Section 3.06(b) (but only to the extent of the Net Investment
Earnings, if any, with respect to each such account); (ii) interest earned on
deposits in any Cash Collateral Account, any Lockbox Account and the Servicing
Accounts maintained by such Master Servicer that is not required by applicable
law or the related Loan Documents to be paid to the Borrower; and (iii)
collections representing Prepayment Interest Excess for any Distribution Date on
the Loans for which such Master Servicer is the applicable Master Servicer
(except to the extent necessary to offset Prepayment Interest Shortfalls on such
Loans for such Distribution Date).

            The applicable Master Servicer shall not be entitled to any Master
Servicing Fees or any other compensation from the Trust Fund hereunder with
respect to any CBA B Loan.

            Master Servicer No. 1 shall be entitled to a fee based on a Master
Servicing Fee Rate of 0.01% in respect of the Companion Loan, which fee shall be
calculated on the same basis and in the same manner as the Master Servicing Fee
is calculated.

            The applicable Master Servicer shall be entitled to the above
described Additional Servicing Compensation (without sharing such Additional
Servicing Compensation with the applicable Special Servicer or any other Person)
with respect to the 828-850 Madison Avenue Junior Loan, the 3434 North
Washington Boulevard Junior Loan and the 500 Sansome Office Junior Loan to the
extent not expressly prohibited under the related Intercreditor Agreement;
provided that, in no such case, shall the payment of any such compensation with
respect to the 828-850 Madison Avenue Junior Loan, the 3434 North Washington
Boulevard Junior Loan and the 500 Sansome Office Junior Loan reduce amounts
otherwise payable to the Certificateholders.

            In respect of each Broker Strip Loan, the Master Servicer shall, on
a monthly basis, by the last day of the month following the month in which the
Master Servicer collected any related Broker Strip Interest, remit to the
applicable Broker Strip Payee the amount of the Broker Strip Interest so
collected.

            Each initial Master Servicer in its individual capacity (and its
successors and assigns) shall also be entitled to receive all Primary Servicing
Fees on any Loan, Companion Loan and Junior Loan (including any Specially
Serviced Loan, Additional Collateral Loan and Defeasance Loan) for which it is
the applicable Master Servicer and that is not serviced by a Primary Servicer,
and on any successor REO Loan with respect to the foregoing, computed on the
basis of the related Stated Principal Balance and for the same period and in the
same manner respecting which any related interest payment due (or deemed to be
due) on the related Loan, Junior Loan or REO Loan is computed. The right of each
such initial Master Servicer (and its successors and assigns) to receive such
Primary Servicing Fees in accordance with the provisions hereof shall not be
terminated under any circumstance, including transfer of the servicing or
subservicing of the Loans to another entity or the termination of such initial
Master Servicer in its capacity as a Master Servicer, except to the extent that
any portion of such Primary Servicing Fee is needed (as determined by the
Trustee in its discretion) to compensate any replacement primary servicer for
assuming the duties of such initial Master Servicer as Primary Servicer under
this Agreement. Each initial Master Servicer in its individual capacity (and its
successors and assigns) shall be permitted to assign such Primary Servicing Fees
to any party without restriction, subject to the exception in the immediately
preceding sentence.

            Except as specifically provided herein, each Master Servicer shall
be required to pay out of its own funds all expenses incurred by it in
connection with its servicing activities hereunder (including, without
limitation, payment of any amounts due for premiums for any blanket Insurance
Policy insuring against hazard losses pursuant to Section 3.07), if and to the
extent such expenses are not payable directly out of any Collection Account or
any Junior Loan Custodial Account maintained by such Master Servicer or
otherwise reimbursable hereunder, and such Master Servicer shall not be entitled
to reimbursement therefor except as expressly provided in this Agreement.

            In the event that any initial Master Servicer is terminated or
resigns as Master Servicer, such initial Master Servicer in its individual
capacity (and its successors and assigns) will be entitled to retain the related
Excess Servicing Strip, if any, and the related Assignable Primary Servicing
Fee, if any, except to the extent that any portion of such Excess Servicing
Strip or such Assignable Primary Servicing Fee is needed (as determined by the
Trustee in its discretion) to compensate any replacement Master Servicer for
assuming the duties of such initial Master Servicer as a Master Servicer or
Primary Servicer, as applicable, under this Agreement.

            (b) As compensation for its activities hereunder, each Special
Servicer shall be entitled to receive the Special Servicing Fee with respect to
each Specially Serviced Loan and REO Loan for which it is the applicable Special
Servicer. As to each such Specially Serviced Loan and REO Loan, the Special
Servicing Fee shall accrue at the Special Servicing Fee Rate (in accordance with
the same terms of the related Note as are applicable to the accrual of interest
at the Mortgage Rate) and shall be computed on the basis of the Stated Principal
Balance of such Specially Serviced Loan and for the same period respecting which
any related interest payment due on such Specially Serviced Loan or deemed to be
due on such REO Loan is computed. The Special Servicing Fee with respect to any
Specially Serviced Loan or REO Loan shall cease to accrue if a Liquidation Event
occurs in respect thereof. The Special Servicing Fee shall be payable monthly,
on a loan-by-loan basis, to the extent permitted by Section 3.05(a), or as
otherwise provided in Section 3.05(a). The right of a Special Servicer to
receive the related Special Servicing Fee may not be transferred in whole or in
part except in connection with the transfer of all of the applicable Special
Servicer's responsibilities and obligations under this Agreement.

            Additional servicing compensation in the form of (i) 100% of
assumption application and assumption fees on all Specially Serviced Loans, (ii)
50% of all assumption fees on any Loans other than Specially Serviced Loans,
(iii) 50% of all commercially reasonable fees actually collected on or with
respect to any Loan for modifications, extensions, earnouts and other actions
for which the consent of the applicable Special Servicer is required pursuant to
Section 3.20 (but only when and to the extent that all amounts then due and
payable after giving effect to any modification with respect to the related Loan
have been paid) and (iv) all commercially reasonable extension fees and all fees
received on or with respect to loan modifications for which the applicable
Special Servicer is solely responsible (and the Master Servicer is not
responsible) pursuant to Section 3.20(a), but only to the extent actually
collected from the related Borrower and only when and to the extent that all
amounts then due and payable after giving effect to any modification with
respect to the related Loan or Serviced Loan Combination (including those
payable to the applicable Master Servicer pursuant to Section 3.11(a)) have been
paid, shall be promptly paid to the applicable Special Servicer by the
applicable Master Servicer and shall not be required to be deposited in any
Collection Account or any Junior Loan Custodial Account pursuant to Section
3.04(a).

            The applicable Special Servicer shall also be entitled to servicing
compensation in the form of a Workout Fee with respect to each Corrected Loan at
the Workout Fee Rate. The "Workout Fee Rate" means 1.0% (0.75% with respect to
the 828-850 Madison Avenue Loan) applied to each collection of interest (other
than Penalty Charges) and principal (including scheduled payments, prepayments,
Balloon Payments, payments at maturity and payments received with respect to a
partial condemnation of a Mortgaged Property securing a Specially Serviced Loan)
received on such Loan for so long as it remains a Corrected Loan. The Workout
Fee with respect to any Corrected Loan will cease to be payable if the subject
Loan or Junior Loan again becomes a Specially Serviced Loan; provided that a new
Workout Fee will become payable if and when the subject Loan or Junior Loan
again becomes a Corrected Loan. If a Special Servicer is terminated (other than
for cause), it shall retain the right to receive any and all Workout Fees
otherwise payable to it with respect to any Loan and/or Junior Loan:

            (i) that became a Corrected Loan during the period that it acted as
      Special Servicer and that was a Corrected Loan at the time of such
      termination; or

            (ii) that becomes a Corrected Loan subsequent to the time of such
      termination if the Special Servicer resolved the circumstances and/or
      conditions (including by way of a modification of the subject mortgage
      loan) which caused the subject mortgage loan to become a Specially
      Serviced Loan but the subject mortgage loan had not, when the Special
      Servicer was terminated, become a Corrected Loan because the related
      Borrower had not then made three consecutive monthly debt service payments
      (but the related Borrower then makes those three monthly debt service
      payments, and the subject mortgage loan subsequently becomes a Corrected
      Loan as a result of the Borrower making those three monthly debt service
      payments);

in each case until the Workout Fee for any such loan ceases to be payable in
accordance with the terms hereof (and the successor Special Servicer shall not
be entitled to any portion of such Workout Fees).

            A Liquidation Fee will be payable to the applicable Special Servicer
with respect to each Specially Serviced Loan or REO Loan as to which the
applicable Special Servicer receives any Liquidation Proceeds subject to the
exceptions set forth in the definition of Liquidation Fee. As to each Specially
Serviced Loan or REO Loan, the Liquidation Fee will be payable (subject to the
provisos to the first paragraph of Section 3.05(a)) out of, and will be
calculated by application of a "Liquidation Fee Rate" of 1.0% (0.75% with
respect to the 828-850 Madison Avenue Loan) of net Liquidation Proceeds received
with respect to such Specially Serviced Loan or REO Loan. Notwithstanding the
foregoing, no Liquidation Fee shall be payable under this Agreement based on, or
out of, Liquidation Proceeds received in connection with any of the exceptions
set forth in the definition of "Liquidation Fee."

            Notwithstanding anything to the contrary described above, no
Liquidation Fee will be payable under the circumstances provided in the proviso
to the definition of Liquidation Fee. If, however, Liquidation Proceeds are
received with respect to any Corrected Loan and the applicable Special Servicer
is properly entitled to a Workout Fee, such Workout Fee will be payable based on
and out of the portion of such Liquidation Proceeds that constitute principal
and/or interest (other than Default Interest) on such Corrected Loan; provided,
however, that in no event will the applicable Special Servicer receive both a
Liquidation Fee and a Workout Fee out of the same Liquidation Proceeds.

            The applicable Special Servicer will also be entitled to additional
fees in the form of Penalty Charges on each Specially Serviced Loan (but only to
the extent actually collected from the related Borrower and, with respect to the
828-850 Madison Avenue Total Loan, to the extent permitted in the 828-850
Madison Avenue Intercreditor Agreement) (A) when and to the extent that all
amounts then due and payable with respect to such Specially Serviced Loan
(including outstanding interest on all Advances (including interest on advances
made by the holder or servicer of a Companion Loan) accrued with respect to such
Specially Serviced Loan) have been paid, (B) the Trust Fund has been reimbursed
with respect to any Advances made with respect to such Specially Serviced Loan,
together with interest thereon if such interest was paid to the applicable
Master Servicer, from a source of funds other than Penalty Charges collected on
such Specially Serviced Loan, and (C) the Trust Fund has been reimbursed for any
Additional Trust Fund Expenses (including any Special Servicing Fees, Workout
Fees and Liquidation Fees) incurred since the Closing Date with respect to such
Specially Serviced Loan and previously paid from a source other than Penalty
Charges on such Specially Serviced Loan. Each Special Servicer shall be required
to pay out of its own funds all expenses incurred by it in connection with its
servicing activities hereunder (including, without limitation, payment of any
amounts, other than management fees in respect of REO Properties, due and owing
to any of its sub-servicers and the premiums for any blanket Insurance Policy
obtained by it insuring against hazard losses pursuant to Section 3.07), if and
to the extent such expenses are not payable directly out of a Collection
Account, a Junior Loan Custodial Account or such Special Servicer's REO Account,
and such Special Servicer shall not be entitled to reimbursement therefor except
as expressly provided in this Agreement.

            The applicable Special Servicer shall be entitled to the above
described additional compensation with respect to the 828-850 Madison Avenue
Junior Loan, the 3434 North Washington Boulevard Junior Loan and the 500 Sansome
Office Junior Loan to the extent not expressly prohibited under the related
Intercreditor Agreement; provided that, in no such case, shall the payment of
any such compensation with respect to the 828-850 Madison Avenue Junior Loan,
the 3434 North Washington Boulevard Junior Loan and the 500 Sansome Office
Junior Loan reduce amounts otherwise payable to the Certificateholders.

            Section 3.12 Reports to the Certificate Administrator; Collection
Account Statements.

            (a) Each Master Servicer shall deliver to the Certificate
Administrator and the applicable Special Servicer, no later than 1:00 p.m. New
York City time on the second Business Day prior to each Distribution Date
beginning in October 2006, the CMSA Loan Periodic Update File with respect to
its respective Loans and Serviced Loan Combinations and any successor REO Loans
with respect thereto for the related Distribution Date, including the
anticipated P&I Advances and Servicing Advances for the related Distribution and
any accrued but unpaid interest on Advances. Such Master Servicer shall, subject
to Section 3.12(h), contemporaneously provide a copy of such report as it
relates to any Companion Loan or Junior Loan of a Serviced Loan Combination to
the related Companion Loan Holder or Junior Loan Holder, as applicable. Each
Master Servicer's responsibilities under this Section 3.12(a) with respect to
Specially Serviced Loans and REO Loans shall be subject to the satisfaction of
the applicable Special Servicer's obligations under Sections 3.12(c) and 3.21.
For the purposes of the production by a Master Servicer or Special Servicer of
any report, such Master Servicer or Special Servicer, as the case may be, may
conclusively rely (without investigation, inquiry, independent verification or
any duty or obligation to recompute, verify or recalculate any of the amounts
and other information contained in), absent manifest error, on information
provided to it by the Depositor, by the Trustee, by the related Mortgage Loan
Seller, by the related Borrower or (x) in the case of such a report produced by
a Master Servicer, by the applicable Special Servicer (if other than the
applicable Master Servicer or an Affiliate thereof) and (y) in the case of such
a report produced by a Special Servicer, by the applicable Master Servicer (if
other than the applicable Special Servicer or an Affiliate thereof).

            Notwithstanding the foregoing, because each Master Servicer will not
receive the Servicing Files until the Closing Date and will not have sufficient
time to review and analyze such Servicing Files before the initial Distribution
Date, the parties agree that the CMSA Loan Periodic Update File required to be
delivered by each Master Servicer in October 2006 (insofar as it relates to CSMC
Loans) will be based solely upon information generated from actual collections
received by the applicable Master Servicer and from information the Depositor
delivers or causes to be delivered to the applicable Master Servicer (including
but not limited to information prepared by third-party servicers of the subject
Loans with respect to the period prior to the Closing Date).

            (b) For so long as a Master Servicer makes deposits into and
withdrawals from the Collection Account maintained by it, such Master Servicer
shall, upon request, forward to the Certificate Administrator a statement
setting forth the status of its Collection Account (and, shall, upon request,
deliver to each Companion Loan Holder and Junior Loan Holder a statement setting
forth the status of the related Companion Loan Custodial Account or Junior Loan
Custodial Account) as of the close of business for the calendar month end
preceding the related Distribution Date showing the aggregate amount of deposits
into and withdrawals from such account of each category of deposit specified in
Section 3.04 and each category of withdrawal specified in Section 3.05 for the
related Due Period.

            (c) No later than 1:00 p.m. New York City time on each Master
Servicer Remittance Date beginning in November 2006, each Master Servicer shall
deliver or cause to be delivered to the Certificate Administrator the following
reports for its respective Loans and Serviced Loan Combinations (and, if
applicable, the related REO Properties, providing the required information as of
the related Determination Date): (i) a CMSA Comparative Financial Status Report,
(ii) a CMSA Delinquent Loan Status Report; (iii) a CMSA Historical Loan
Modification and Corrected Mortgage Loan Report; (iv) a CMSA REO Status Report;
(v) a CMSA Servicer Watch List; (vi) a CMSA Property File; (vii) a CMSA
Financial File; (viii) a CMSA Loan Level Reserve/LOC Report; (ix) a CMSA Total
Loan Report; and (xi) a CMSA Advance Recovery Report; provided, however, that
notwithstanding anything to the contrary in this Section 3.12, no Master
Servicer nor any Special Servicer shall be required to prepare or deliver any of
the files or reports comprising the CMSA Investor Reporting Package (other than
the CMSA Loan Periodic Update File) before the first Business Day after the
second Determination Date following the Closing Date, and the Certificate
Administrator shall not be obligated to deliver any such report until provided
by a Master Servicer. Such reports shall be in CMSA format (as in effect from
time to time) and shall be in an electronic format reasonably acceptable to both
the Certificate Administrator and such Master Servicer. The applicable Master
Servicer shall contemporaneously provide a copy of such reports as they relate
to any loan component in a Serviced Loan Combination to the related Junior Loan
Holder and related Companion Loan Holder.

            Each Master Servicer's responsibilities under this Section 3.12(c)
with respect to Specially Serviced Loans and REO Loans shall be subject to the
satisfaction of the applicable Special Servicer's obligations under this Section
3.12(c) and Section 3.21. For the purposes of the production by a Master
Servicer or a Special Servicer of any reports, documents or information required
under this Section 3.12 or under any other provision of this Agreement, such
Master Servicer or Special Servicer, as the case may be, may (absent bad faith
or manifest error) conclusively rely on (without investigation, inquiry,
independent verification or any duty or obligation to recompute, verify or
recalculate any of the amounts and other information contained in) any reports,
documents or information provided to it by the Depositor, by the Trustee, by the
related Mortgage Loan Seller, by the related Borrower or (x) in the case of any
such reports, documents or information produced by a Master Servicer, by the
applicable Special Servicer (if other than the applicable Master Servicer or an
Affiliate thereof) and (y) in the case of any such reports, documents and
information produced by a Special Servicer, by the applicable Master Servicer
(if other than the applicable Special Servicer or an Affiliate thereof). The
Certificate Administrator shall be entitled to conclusively rely on and shall
not be responsible for the accuracy of any information provided to it by the
applicable Master Servicer or the applicable Special Servicer pursuant to this
Agreement, but shall (in the absence of bad faith) be entitled to conclusively
rely on such information without any investigation, independent verification or
inquiry or any duty or obligation to recompute, verify or recalculate any of the
amounts and other information stated therein.

            The reporting obligations of any Master Servicer in connection with
a Serviced Loan Combination shall be construed to require such Master Servicer
to only provide information regarding such Serviced Loan Combination, but
whenever such Master Servicer remits funds to the related Companion Loan Holder
or Junior Loan Holder(s), it shall thereupon deliver to such holder a remittance
report identifying the amounts in such remittance. The applicable Master
Servicer shall contemporaneously with any related delivery to the Certificate
Administrator or the applicable Special Servicer, as applicable, provide any
such reports which contain information related to the Mortgaged Property
securing any Serviced Loan Combination, or financial information regarding any
related Borrower to the related Companion Loan Holder or Junior Loan Holder(s),
as applicable, unless an earlier delivery is expressly required hereunder.

            Within 30 days following the Closing Date, each Master Servicer
shall deliver to the Certificate Administrator the CMSA Loan Setup File for the
Loans for which such Master Servicer is the applicable Master Servicer; provided
that the Depositor shall, within 20 days following the Closing Date deliver to
such Master Servicer the information therein (which will also include property
level information necessary for the Master Servicer to produce and deliver the
CMSA Investor Reporting Package to the Certificate Administrator) to be included
therein with respect to CSMC Loans.

            The applicable Special Servicer shall from time to time (and, in any
event, upon request) provide the applicable Master Servicer with such
information in its possession regarding the Specially Serviced Loans and REO
Properties as may be necessary for such Master Servicer to prepare each report
and any supplemental information to be provided by such Master Servicer to the
Certificate Administrator or any other Person pursuant to this Agreement.
Without limiting the generality of the foregoing, by 1:00 p.m. New York City
time on the Business Day following the Determination Date, beginning in October
2006, the applicable Special Servicer shall prepare and deliver or cause to be
delivered to each Master Servicer the CMSA Special Servicer Loan File that
contains the information called for in, or that will enable such Master Servicer
to provide, the CMSA files and reports required to be delivered by such Master
Servicer to the Certificate Administrator, in each case with respect to any
applicable Specially Serviced Loans and REO Properties.

            (d) Each Master Servicer shall deliver or cause to be delivered to
the Certificate Administrator the following materials (and shall
contemporaneously provide a copy of such materials and related reports as they
relate to a Companion Loan or Junior Loan of a Serviced Loan Combination, to the
related Companion Loan Holder or Junior Loan Holder), in each case to the extent
that such materials or the information on which they are based are required to
be delivered pursuant to the Loan Documents for the Loans and for which such
Master Servicer is the applicable Master Servicer and any related REO Properties
and have been received by such Master Servicer:

            (i) At least annually by May 31, commencing May 31, 2007, or as soon
      thereafter as reasonably practicable based upon when, and the format in
      which, such Master Servicer receives the subject information, with respect
      to each Loan for which such Master Servicer is the applicable Master
      Servicer and each related REO Loan (to the extent prepared by and timely
      received from the applicable Special Servicer in the case of any Specially
      Serviced Loan or REO Loan), a CMSA Operating Statement Analysis Report and
      CMSA NOI Adjustment Worksheet for the related Mortgaged Property or REO
      Property as of the end of the preceding fiscal year, together with copies
      of the operating statements and rent rolls (for properties other than
      residential cooperative properties) (but only to the extent the related
      Borrower delivers such information to the applicable Master Servicer and,
      with respect to operating statements and rent rolls for Specially Serviced
      Loans and REO Properties, to the extent timely delivered by the applicable
      Special Servicer to the applicable Master Servicer), for the related
      Mortgaged Property or REO Property as of the end of the preceding fiscal
      year.

            (ii) Such Master Servicer shall use its reasonable efforts (but
      shall not be required to institute litigation) to obtain quarterly (as
      required by the applicable Loan Documents) and annual (or, in the case of
      Co-op Loans, annual only) operating statements and rent rolls (for
      properties other than residential cooperative properties) with respect to
      each of such Loans for which it is the applicable Master Servicer, other
      than Specially Serviced Loans or REO Loans, which efforts shall include
      sending a letter to the related Borrower each quarter requesting such
      quarterly and/or annual operating statements and rent rolls by no later
      than 60 days after the subject calendar quarter, or 90 days after the
      subject calendar year, to the extent such action is consistent with
      applicable law, the terms of such Loans and the Servicing Standard.
      Subject to the provisions of Section 3.12(h) below, the applicable Master
      Servicer shall (to the extent not otherwise delivered pursuant to clause
      (i) above) deliver copies of all of the foregoing items so collected to
      the applicable Special Servicer, the Directing Certificateholder and any
      Requesting Subordinate Certificateholder (at the expense of such
      requesting Holder), and upon request, the Certificate Administrator and
      the Depositor, (x) in the case of quarterly operating statements and rent
      rolls, within the later of (A) 60 days after such quarter and (B) 45 days
      following receipt of such operating statements and rent rolls, and (y) in
      the case of annual operating statements and rent rolls, not later than the
      later of (A) May 31 of each calendar year and (B) 45 days following
      receipt of such operating statements and rent rolls.

            (iii) Such Master Servicer shall maintain a CMSA Operating Statement
      Analysis Report for each Mortgaged Property securing each Loan for which
      it is the applicable Master Servicer (other than any such Mortgaged
      Property which is an REO Property or constitutes security for a Specially
      Serviced Loan) that shall be updated by the applicable Master Servicer and
      delivered to the Certificate Administrator, any related Junior Loan Holder
      within 30 days after receipt by the applicable Master Servicer of updated
      operating statements for such Mortgaged Property beginning in June 2007,
      provided that the applicable Master Servicer shall not be required to
      update the CMSA Operating Statement Analysis Reports more often than
      quarterly (or annually with respect to Co-op Loans) or such other longer
      period as operating statements are required to be delivered to the lender
      by the Borrower pursuant to the Loan Documents.

            The applicable Special Servicer will be required pursuant to Section
3.12(f) to deliver in a reasonable electronic format to the applicable Master
Servicer the information required pursuant to this Section 3.12(d) with respect
to Specially Serviced Loans and REO Loans for which such Special Servicer is the
applicable Special Servicer on or before April 30 of each year, commencing on
April 30, 2007, and within 10 days after its receipt of any operating statement
for any related Mortgaged Property or REO Property.

            (e) Each Special Servicer shall report to the applicable Master
Servicer any events affecting, or which may affect, the most recent CMSA
Servicer Watch List for the Loans and Serviced Loan Combinations for which such
Special Servicer is the applicable Special Servicer promptly upon such Special
Servicer having knowledge of such event. In addition, in connection with their
servicing of the respective Loans, the applicable Master Servicer and the
applicable Special Servicer shall (to the extent such information is not
otherwise contained in any CMSA report or file) provide to each other and to the
Certificate Administrator (and solely with respect to any Serviced Loan
Combination, if any Companion Loan or Junior Loan of such Serviced Loan
Combination is listed on the CMSA Servicer Watch List, the related Companion
Loan Holder or Junior Loan Holder) written notice of any event that comes to
their knowledge with respect to a Companion Loan or Junior Loan or REO Property
that the applicable Master Servicer or the applicable Special Servicer,
respectively, determines, in accordance with Servicing Standard, would have a
material adverse effect on such loan or REO Property, which notice shall include
an explanation as to the reason for such material adverse effect.

            (f) Each Special Servicer shall deliver or cause to be delivered to
the applicable Master Servicer and, upon the request of the Trustee, the
Certificate Administrator, the Depositor and any Companion Loan Holder or Junior
Loan Holder or any Rating Agency, to any such requesting party, the following
materials, in each case to the extent that such materials or the information on
which they are based are required to be delivered by the Borrower pursuant to
the Loan Documents for the Loans and Serviced Loan Combinations for which such
Special Servicer is the applicable Special Servicer and have been received by
such Special Servicer:

            (i) Annually, on or before April 30 of each year, commencing April
      30, 2007, or as soon thereafter as reasonably practicable based upon when,
      and the format in which, such Master Servicer receives the subject
      information, with respect to each Specially Serviced Loan and REO Loan for
      which such Special Servicer is the applicable Special Servicer, a CMSA
      Operating Statement Analysis Report and CMSA NOI Adjustment Worksheet,
      both in written form and in electronic format reasonably acceptable to the
      applicable Master Servicer, such Special Servicer, the Certificate
      Administrator and the Trustee for the related Mortgaged Property or REO
      Property as of the end of the preceding calendar year (but only to the
      extent that such Special Servicer has received such information from the
      applicable Master Servicer at the time of the servicing transfer pursuant
      to Section 3.21 necessary to prepare the related CMSA Operating Statement
      Analysis Report and CMSA NOI Adjustment Worksheet on a prospective basis),
      together with copies of the operating statements and rent rolls (for
      properties other than residential cooperative properties) for the related
      Mortgaged Property or REO Property as of the end of the preceding calendar
      year.

            (ii) Such Special Servicer shall use its reasonable efforts (but
      shall not be required to institute litigation) to obtain quarterly and
      annual (or, in the case of Co-op Loans, annual only) operating statements
      and rent rolls (for properties other than residential cooperative
      properties) with respect to each Mortgaged Property constituting security
      for a Specially Serviced Loan and each REO Property for which it is the
      applicable Special Servicer, which efforts shall include sending a letter
      to the related Borrower or other appropriate party each quarter (followed
      up with telephone calls) requesting such quarterly and/or annual operating
      statements and rent rolls by no later than 60 days after the subject
      calendar quarter, or 90 days after the subject calendar year. Such Special
      Servicer shall (to the extent not otherwise delivered pursuant to clause
      (i) above) deliver copies of all of the foregoing items so collected to
      the applicable Master Servicer, the holders of any related Companion Loan
      or Junior Loan(s), the Directing Certificateholder and any Requesting
      Subordinate Certificateholder (at the expense of such requesting Holder),
      and upon request, the Certificate Administrator and the Depositor, (x) in
      the case of quarterly operating statements and rent rolls, within the
      later of (A) 60 days after such quarter and (B) 45 days following receipt
      of such operating statements and rent rolls, and (y) in the case of annual
      operating statements and rent rolls, not later than the later of (A) April
      30 of each calendar year and (B) 45 days following receipt of such
      operating statements and rent rolls.

            (iii) Such Special Servicer shall maintain a CMSA Operating
      Statement Analysis Report, both in written form and in electronic format
      (including, if requested, posting to the website of Special Servicer No.
      2) reasonably acceptable to the applicable Master Servicer, such Special
      Servicer, the Certificate Administrator and the Trustee, for each
      Mortgaged Property which constitutes security for a Specially Serviced
      Loan or is a REO Property for which it is the applicable Special Servicer
      that shall be updated by such Special Servicer and delivered to the
      applicable Master Servicer, the Certificate Administrator and the holders
      of any Companion Loan or Junior Loan within 10 days after receipt by the
      applicable Special Servicer of updated operating statements for each such
      Mortgaged Property, provided that the applicable Special Servicer shall
      not be required to update any CMSA Operating Statement Analysis Report
      more often than quarterly or, in the case of Co-op Loans, annually.

            (g) Each Master Servicer and each Special Servicer hereby agrees to
deliver to each Rating Agency any information such Rating Agency may reasonably
request with respect to the Loans and Serviced Loan Combinations for which such
Master Servicer or such Special Servicer is the applicable Master Servicer or
the applicable Special Servicer, as the case may be. The Certificate
Administrator shall be entitled to rely conclusively on and shall not be
responsible for the content or accuracy of any information provided to it by the
applicable Master Servicer or the applicable Special Servicer pursuant to this
Agreement.

            (h) If a Master Servicer or a Special Servicer is required to
deliver any statement, report or information under any provision of this
Agreement (including Section 3.15 and Section 3.26(h)), then, notwithstanding
anything to the contrary herein, such Master Servicer or such Special Servicer,
as the case may be, may satisfy such obligation by (x) physically delivering a
paper copy of such statement, report or information, (y) delivering such
statement, report or information in a commonly used electronic format or (z)
making such statement, report or information available on the applicable Master
Servicer's Website, unless this Agreement expressly specifies a particular
method of delivery; provided that all reports required to be delivered to the
Certificate Administrator shall be delivered in accordance with clause (x) or
(y) or, upon request (other than Special Servicer No. 1, and with respect to
Master Servicer No. 2 and Special Servicer No. 2, only with respect to the
following reports: CMSA Operating Statement Analysis Report, CMSA NOI Adjustment
Worksheet, inspection reports and CMSA monthly reports), clause (z).

            Section 3.13 [Reserved].

            Section 3.14 [Reserved].

            Section 3.15 Access to Certain Information.

            (a) Each Master Servicer and each Special Servicer shall provide
reasonable access during its normal business hours at each of its principal
servicing offices to any Certificateholder or Certificate Owner that is, or is
affiliated with, a federally insured financial institution, to the Trustee, the
Certificate Administrator, to the Depositor, to each Rating Agency, to each
Companion Loan Holder, to each Junior Loan Holder, to the other Master Servicers
and Special Servicers, and to the OTS, the FDIC, the Federal Reserve Board and
the supervisory agents and examiners of such boards and such corporations, and
any other federal or state banking or insurance regulatory authority that may
exercise authority over any Certificateholder, to any documentation regarding
the Loans and the Trust Fund within its control (but with respect to a Companion
Loan Holder or Junior Loan Holder, relating to the corresponding A Loan only)
which may be required by this Agreement or by applicable law.

            Such access shall be afforded without charge (except that each
Master Servicer and Special Servicer may charge a reasonable fee for copies and
out-of-pocket costs to parties other than the Rating Agencies) but only upon
reasonable prior written request and during normal business hours at the offices
of the applicable Master Servicer or the applicable Special Servicer, as the
case may be, designated by it.

            (b) Each Master Servicer may (but shall not be required to) in
accordance with such rules and procedures as it may adopt in its sole
discretion, also make available through its Website or otherwise, any additional
information relating to the Loans for which it is the applicable Master
Servicer, the related Mortgaged Properties or the related Borrowers, for review
by the Depositor, the Special Servicers, the Directing Certificateholder, the
Rating Agencies and any other Persons to whom such Master Servicer believes such
disclosure is appropriate, in each case except (i) to the extent doing so is
prohibited by applicable law or by the related Loan and (ii) subject to Sections
3.15(d), (e) and (f).

            (c) Nothing in this Section 3.15 shall detract from the obligation
of each Master Servicer and Special Servicer to observe any applicable law or
agreement prohibiting disclosure of information with respect to the Borrowers,
and the failure of a Master Servicer or Special Servicer to provide access as
provided in this Section 3.15 as a result of such obligation shall not
constitute a breach of this Section 3.15. Nothing herein shall be deemed to
require any Master Servicer or Special Servicer to confirm, represent or warrant
the accuracy of any other Person's information or report included in any
communication from such Master Servicer or Special Servicer or from any other
Person. No Master Servicer or Special Servicer may be held liable for the
dissemination of information in accordance with this Agreement. None of the
Master Servicers and Special Servicers shall have any liability to the
Depositor, the Trustee, any Certificateholder, any Certificate Owner, any
Companion Loan Holder or Junior Loan Holder, the Initial Purchaser, any
Underwriter, any Rating Agency or any other Person to whom such Master Servicer
or Special Servicer, as applicable, delivers information pursuant to and in
accordance with this Section 3.15 or any other provision of this Agreement for
federal, state or other applicable securities law violations relating to the
disclosure of such information. Each Master Servicer and Special Servicer may
disclaim responsibility for any information distributed by the Trustee or any
other Master Servicer or Special Servicer for which such Master Servicer or
Special Servicer is not the original source. Each Master Servicer and Special
Servicer may deny any of the foregoing Persons access to confidential
information or any intellectual property which such Master Servicer or Special
Servicer is restricted by license or contract from disclosing. Notwithstanding
the foregoing, each Master Servicer and Special Servicer shall maintain separate
from such confidential information and intellectual property, all documentation
regarding the Loans that is not confidential.

            (d) Notwithstanding the obligations of the Master Servicers set
forth in the preceding provisions of this Section 3.15, each Master Servicer may
(i) withhold any information not yet included in a Form 8-K filed with the
Commission or otherwise made publicly available with respect to which the
Trustee or such Master Servicer has determined that such withholding is
appropriate and (ii) deny any of the foregoing Persons access to confidential
information or any intellectual property which such Master Servicer or Special
Servicer is restricted by license or contract from disclosing. Notwithstanding
the foregoing, each Master Servicer and Special Servicer shall maintain separate
from such confidential information and intellectual property, all documentation
regarding the Loans that is not confidential.

            (e) With respect to any information or report furnished by a Master
Servicer or Special Servicer pursuant to this Section 3.15, such Master Servicer
or Special Servicer may (i) indicate the source of such information and may
affix thereto any disclaimer it deems appropriate in its discretion, (ii) as a
condition to making any report or information available upon request to any
Person other than the parties hereto, require that the recipient of such
information or report acknowledge that such Master Servicer or such Special
Servicer may contemporaneously provide such information or report to the
Depositor, the Trustee, the Initial Purchaser, any Underwriter, any Rating
Agency and/or Certificateholders or Certificate Owners, and (iii) with respect
to any transmittal of information or reports to any Person other than the
Trustee, the Rating Agencies or the Depositor, attach a letter containing the
following provision:

            By receiving the information set forth herein, you hereby
            acknowledge and agree that the United States securities laws
            restrict any person who possesses material, non-public information
            regarding the Trust which issued Credit Suisse First Boston Mortgage
            Securities Corp., Commercial Mortgage Pass-Through Certificates,
            Series 2006-C4 from purchasing or selling such Certificates in
            circumstances where the other party to the transaction is not also
            in possession of such information. You also acknowledge and agree
            that such information is being provided to you for the purposes of,
            and such information may be used only in connection with, evaluation
            by you or another Certificateholder, Certificate Owner or
            prospective purchaser of such Certificates or beneficial interest
            therein.

            (f) In addition, each of the Master Servicers and the Special
Servicers may condition any disclosure upon the recipient entering into a
reasonable and customary confidentiality agreement reasonably acceptable to such
Master Servicer or Special Servicer regarding such disclosure to it and which
may provide indemnification to such Master Servicer or Special Servicer. Without
limiting the foregoing, in connection with providing access to or copies of the
items described in this Section 3.15 to Certificateholders, Certificate Owners,
prospective purchasers of Certificates or interests therein or investment
advisors of any of the foregoing or, with respect to the Directing
Certificateholder, in connection with providing access to or copies of any items
in accordance with the Agreement, each Master Servicer or Special Servicer, as
the case may be, may require: (i) in the case of Certificateholders, Certificate
Owners, the Directing Certificateholder or investment advisors representing such
Persons, a confirmation executed by the requesting Person substantially in the
form of Exhibit S-1 hereto (or such other form as may be reasonably acceptable
to such Master Servicer or Special Servicer, and which may provide
indemnification to such Master Servicer or Special Servicer), generally to the
effect that such Person is a registered or beneficial holder of Certificates or
an investment advisor representing such Person, and is requesting the
information solely for use in evaluating such Person's investment in the
Certificates and will otherwise keep such information confidential; and (ii) in
the case of a prospective purchaser or an investment advisor representing such
Person, a confirmation executed by the requesting Person substantially in the
form of Exhibit S-2 hereto (or such other form as may be reasonably acceptable
to such Master Servicer or Special Servicer, and which may provide
indemnification to such Master Servicer or Special Servicer), generally to the
effect that such Person is a prospective purchaser of a Certificate or an
interest therein or an investment advisor representing such Person, and is
requesting the information solely for use in evaluating a possible investment in
the Certificates and will otherwise keep such information confidential.

            Section 3.16 Title to REO Property; REO Account.

            (a) If title to any REO Property is acquired, the deed or
certificate of sale shall be issued to the Trustee (or its nominee) on behalf of
the Certificateholders (and for the benefit of the related Companion Loan Holder
and/or Junior Loan Holder(s), as applicable, if such REO Property is related to
any Serviced Loan Combination or CBA A/B Loan Pair). The applicable Special
Servicer, on behalf of the Trust Fund, shall sell any such REO Property in
accordance with Section 3.18(d) and, in any event, prior to the close of the
third calendar year beginning after the year in which the Trust Fund acquires
ownership of such REO Property for purposes of Section 860G(a)(8) of the Code,
unless the applicable Special Servicer either (i) is granted an extension of
time (an "REO Extension") by the Internal Revenue Service to sell such REO
Property (a copy of which shall be delivered to the Trustee) or (ii) obtains for
the Trustee and the applicable Master Servicer an Opinion of Counsel (the cost
of which shall be paid as a Servicing Advance), addressed to the Trustee and the
applicable Master Servicer, to the effect that the holding by the Trust Fund of
such REO Property after such period will not result in the imposition of taxes
on "prohibited transactions" of the Trust Fund or any Trust REMIC as defined in
Section 860F of the Code or cause any Trust REMIC to fail to qualify as a REMIC
for federal or applicable state tax purposes at any time that the 828-850
Madison Avenue Loan REMIC Regular Interest or any Uncertificated Lower-Tier
Interests or Certificates are outstanding. If the applicable Special Servicer is
granted the REO Extension or obtains the Opinion of Counsel contemplated by
clause (ii) above, the applicable Special Servicer shall sell such REO Property
within such period as is permitted by such REO Extension or such Opinion of
Counsel. Any expense incurred by the applicable Special Servicer in connection
with its being granted the REO Extension or its obtaining the Opinion of Counsel
contemplated by clause (ii) above shall be an expense of the Trust Fund payable
out of the Collection Account pursuant to Section 3.05(a).

            (b) The applicable Special Servicer shall segregate and hold all
funds collected and received in connection with any REO Property separate and
apart from its own funds and general assets. If an REO Acquisition shall occur
in respect of any REO Property, the applicable Special Servicer shall establish
and maintain an REO Account, held on behalf of the Trustee in trust for the
benefit of the Certificateholders (and for the benefit of the related Companion
Loan Holder or Junior Loan Holder(s), as applicable, if such REO Property is
related to any CBA A/B Loan Pair or a Loan Combination), for the retention of
revenues and other proceeds derived from each REO Property for which such
Special Servicer is the applicable Special Servicer. Each REO Account shall be
an Eligible Account. The applicable Special Servicer shall deposit, or cause to
be deposited, in its REO Account, within one Business Day after receipt, all REO
Revenues, Insurance and Condemnation Proceeds and Liquidation Proceeds received
in respect of an REO Property. Funds in an REO Account may be invested only in
Permitted Investments in accordance with Section 3.06. Each Special Servicer
shall give notice to the Trustee and the applicable Master Servicer(s) of the
location of its REO Account when first established and of the new location of
its REO Account prior to any change thereof.

            (c) The applicable Special Servicer shall withdraw from its REO
Account funds necessary for the proper operation, management, leasing,
maintenance and disposition of any REO Property, but only to the extent of
amounts on deposit in such REO Account relating to such REO Property. On each
Determination Date, the applicable Special Servicer shall withdraw from its REO
Account and remit to the applicable Master Servicer for deposit into its
Collection Account, Companion Loan Custodial Account or Junior Loan Custodial
Account, as applicable the aggregate of all amounts received in respect of each
REO Property during the most recently ended Due Period, net of any withdrawals
made out of such amounts pursuant to the preceding sentence; provided, however,
that the applicable Special Servicer may retain in its REO Account, in
accordance with the Servicing Standard, such portion of such balance as may be
necessary to maintain a reasonable reserve for repairs, replacements, leasing,
management and tenant improvements and other related expenses for each REO
Property. In addition, on each Determination Date, the applicable Special
Servicer shall provide the applicable Master Servicer with a written accounting
of amounts deposited in such Master Servicer's Collection Account on such date.

            (d) Each Special Servicer shall keep and maintain separate records,
on a property-by-property basis, for the purpose of accounting for all deposits
to, and withdrawals from, such Special Servicer's REO Account pursuant to
Section 3.16(b) or (c).

            (e) The REO Property and the related REO Account with respect to the
828-850 Madison Avenue Loan REMIC shall be treated as assets of such REMIC for
all purposes of this Agreement.

            Section 3.17 Management of REO Property.

            (a) If title to any REO Property is acquired, the applicable Special
Servicer shall manage, conserve, protect, operate and lease such REO Property
for the benefit of the Certificateholders (and for the benefit of the related
Companion Loan Holder or Junior Loan Holder(s), as applicable, if such REO
Property is related to any Loan Combination or CBA A/B Loan Pair) solely for the
purpose of its timely disposition and sale in a manner that does not cause such
REO Property to fail to qualify as "foreclosure property" within the meaning of
Section 860G(a)(8) of the Code or result in the receipt by the Trust Fund of any
"income from non-permitted assets" within the meaning of Section 860F(a)(2)(B)
of the Code. Subject to the foregoing, however, the applicable Special Servicer
shall have full power and authority to do any and all things in connection
therewith as are in the best interests of and for the benefit of the
Certificateholders (and for the benefit of the related Companion Loan Holder or
Junior Loan Holder(s), as applicable, if such REO Property is related to any
Loan Combination or CBA A/B Loan Pair) (as determined by the applicable Special
Servicer in its good faith and reasonable judgment) and, consistent therewith,
shall withdraw from the applicable Special Servicer's REO Account, to the extent
of amounts on deposit therein with respect to such REO Property, funds necessary
for the proper operation, management, leasing, maintenance and disposition of
such REO Property, including, without limitation:

            (i) all Insurance Policy premiums due and payable in respect of such
      REO Property;

            (ii) all real estate taxes and assessments in respect of such REO
      Property that may result in the imposition of a lien thereon;

            (iii) any ground rents in respect of such REO Property, if
      applicable; and

            (iv) all costs and expenses necessary to maintain and lease such REO
      Property.

            To the extent that amounts on deposit in the related REO Account in
respect of any REO Property are insufficient for the purposes set forth in
clauses (i) through (iv) above with respect to such REO Property, subject to
Section 3.03(c), the applicable Master Servicer shall advance from its own
funds, as a Servicing Advance, such amount as is necessary for such purposes
unless (as evidenced by an Officer's Certificate delivered to the Trustee and
the Depositor) such advances would, if made, constitute Nonrecoverable Servicing
Advances.

            (b) Without limiting the generality of the foregoing, the applicable
Special Servicer shall not:

            (i) permit the Trust Fund to enter into, renew or extend any New
      Lease with respect to any REO Property, if the New Lease by its terms will
      give rise to any income that does not constitute Rents from Real Property;

            (ii) permit any amount to be received or accrued under any New Lease
      other than amounts that will constitute Rents from Real Property;

            (iii) authorize or permit any construction on any REO Property,
      other than the repair or maintenance thereof or the completion of a
      building or other improvement thereon, and then only if more than 10% of
      the construction of such building or other improvement was completed
      before default on the related Loan became imminent, all within the meaning
      of Section 856(e)(4)(B) of the Code; or

            (iv) Directly Operate, or allow any other Person, other than an
      Independent Contractor, to Directly Operate, any REO Property on any date
      more than 90 days after its Acquisition Date;

unless, in any such case, the applicable Special Servicer has obtained an
Opinion of Counsel (the cost of which shall be paid by the applicable Master
Servicer as a Servicing Advance unless non-recoverable) to the effect that such
action will not cause such REO Property to fail to qualify as "foreclosure
property" within the meaning of Section 860G(a)(8) of the Code at any time that
it is held by the Trust Fund, in which case the applicable Special Servicer may
take such actions as are specified in such Opinion of Counsel. Except as limited
above in this Section 3.17 and by Section 3.17(c), the applicable Special
Servicer shall be permitted to cause the Trust Fund to earn "net income from
foreclosure property," subject to the Servicing Standard.

            (c) The applicable Special Servicer shall contract with any
Independent Contractor for the operation and management of any REO Property
within 90 days of the Acquisition Date thereof, provided that:

            (i) the terms and conditions of any such contract may not be
      inconsistent herewith and shall reflect an agreement reached at arm's
      length;

            (ii) the fees of such Independent Contractor (which shall be an
      expense of the Trust Fund and, in the case of an REO Property related to a
      Serviced Loan Combination, of the related Junior Loan Holder(s)) shall be
      reasonable and customary in light of the nature and locality of such REO
      Property;

            (iii) any such contract shall require, or shall be administered to
      require, that the Independent Contractor (A) pay all costs and expenses
      incurred in connection with the operation and management of such REO
      Property, including, without limitation, those listed in subsection (a)
      hereof, and (B) remit all related revenues collected (net of its fees and
      such costs and expenses) to the applicable Special Servicer upon receipt;

            (iv) none of the provisions of this Section 3.17(c) relating to any
      such contract or to actions taken through any such Independent Contractor
      shall be deemed to relieve the applicable Special Servicer of any of its
      duties and obligations hereunder with respect to the operation and
      management of any such REO Property; and

            (v) the applicable Special Servicer shall be obligated with respect
      thereto to the same extent as if it alone were performing all duties and
      obligations in connection with the operation and management of such REO
      Property.

            A Special Servicer shall be entitled to enter into any agreement
with any Independent Contractor performing services for it related to its duties
and obligations hereunder for indemnification of such Special Servicer by such
Independent Contractor, and nothing in this Agreement shall be deemed to limit
or modify such indemnification.

            (d) When and as necessary, the applicable Special Servicer shall
send to the Trustee and the applicable Master Servicer a statement prepared by
the applicable Special Servicer setting forth the amount of net income or net
loss, as determined for federal income tax purposes, resulting from the
operation and management of a trade or business on, the furnishing or rendering
of a non-customary service to the tenants of, or the receipt of any other amount
not constituting Rents from Real Property in respect of, any REO Property in
accordance with Sections 3.17(a) and 3.17(b).

            Section 3.18 Sale of Defaulted Loans and REO Properties.

            (a) None of the Master Servicers, the Special Servicers and/or the
Trustee may sell or purchase, or permit the sale or purchase of, a Loan or REO
Property except on the terms and subject to the conditions set forth in this
Section 3.18 or as otherwise expressly provided in or contemplated by Section
2.03(b) and Section 9.01 or in any related Intercreditor Agreement or mezzanine
loan intercreditor agreement.

            (b) If any Loan becomes a Defaulted Loan, then the applicable
Special Servicer shall promptly so notify in writing the Trustee, the applicable
Master Servicer and the Directing Certificateholder, and with respect to any
related Companion Loan or Junior Loan of a Serviced Loan Combination, any
related Companion Loan Holder or Junior Loan Holder(s). The Directing
Certificateholder may, at its option, purchase any Defaulted Loan out of the
Trust Fund at a cash price equal to the applicable purchase price. The Directing
Certificateholder may, after receipt of the notice described in the first
sentence of this Section 3.18(b), assign its option under the preceding sentence
to any Person (including, without limitation, in connection with an A Loan, any
related Companion Loan Holder or Junior Loan Holder), provided that the
Directing Certificateholder, in connection therewith, shall deliver to the
Trustee and the applicable Special Servicer a copy of the related written
assignment executed by the Directing Certificateholder, provided, further, that
with respect to any A Loan, the option holder's rights under this Section
3.18(b) are subject to Section 3.32 and to the rights of the holder of the
related Companion Loan or Junior Loan and, in some cases, a related mezzanine
loan to purchase such A Loan pursuant to the terms of a related Intercreditor
Agreement or by a mezzanine lender pursuant to the related mezzanine loan
intercreditor agreement. The option with respect to an A Loan shall terminate
upon the purchase of such A Loan, subject to Section 3.32, by the holder of the
related Junior Loan pursuant to the related Intercreditor Agreement or by a
mezzanine lender pursuant to the related mezzanine loan intercreditor agreement.
The Purchase Price for any Defaulted Loan purchased under this Section 3.18(b)
shall be deposited into the applicable Collection Account or Companion Loan
Custodial Account, and the Trustee, upon receipt of an Officer's Certificate
from the applicable Master Servicer to the effect that such deposit has been
made, shall release or cause to be released to the Certificateholder(s)
effecting such purchase (or to its or their designee) the related Mortgage File,
and shall execute and deliver such instruments of transfer or assignment, in
each case without recourse, as shall be provided to it and are reasonably
necessary to vest in such Certificateholder(s) ownership of such Loan. In
connection with any such purchase, the applicable Special Servicer shall deliver
the related Servicing File to the Certificateholder(s) effecting such purchase
(or to its or their designee).

            If not exercised sooner, such purchase option with respect to any
Defaulted Loan will automatically terminate upon (i) the related Borrower's (or,
subject to Section 3.32 and the related Intercreditor Agreement, any Companion
Loan Holder's or Junior Loan Holder's) cure of all defaults on the Defaulted
Loan, (ii) the acquisition on behalf of the Trust, among others, of title to the
related Mortgaged Property by foreclosure or deed in lieu of foreclosure or
(iii) the modification, waiver or pay-off (full or discounted) of the Defaulted
Loan in connection with a workout.

            The purchase price for any Defaulted Loan purchased under this
Section 3.18(b) or any Defaulted Loan purchased by the applicable Special
Servicer under Section 3.18(c) shall, (i) pending determination of the Fair
Value thereof pursuant to the succeeding sentence, be the Purchase Price
calculated in accordance with the definition of Purchase Price, and (ii)
following determination of the Fair Value pursuant to the succeeding sentence,
be the Fair Value. The applicable Special Servicer shall promptly obtain an
Appraisal (unless it has an Appraisal that is less than 12 months old and has no
actual knowledge of, or notice of, any event which in the applicable Special
Servicer's judgment would materially affect the validity of such Appraisal), and
shall, within 60 days following the date on which a Loan becomes a Defaulted
Loan, determine the "Fair Value" thereof in accordance with the Servicing
Standard. In determining the Fair Value of any Defaulted Loan the applicable
Special Servicer shall take into account, among other factors, the period and
amount of the delinquency on such Loan, the occupancy level and physical
condition of the related Mortgaged Property, the state of the local economy in
the area where the Mortgaged Property is located, the expected recovery of such
Loan if the applicable Special Servicer were to pursue workout or foreclosure
strategies instead of the purchase option being exercised. In addition, the
applicable Special Servicer shall refer to all relevant information contained in
the Servicing File, including the most recent Appraisal obtained or conducted
with respect to the related Mortgaged Property and available objective
third-party information obtained from generally available sources, as well as
information obtained from vendors providing real estate services to the
applicable Special Servicer, concerning the market for distressed real estate
loans and the real estate market for the subject property type in the area where
the related Mortgaged Property is located based on the Appraisal. The applicable
Special Servicer must give prompt written notice of its Fair Value determination
to the Trustee, the applicable Master Servicer, the Directing Certificateholder
and, with respect to any Serviced Loan Combination, each related Companion Loan
Holder or Junior Loan Holder, as applicable.

            The applicable Special Servicer shall be required to change from
time to time thereafter, its determination of the Fair Value of a Defaulted Loan
based upon changed circumstances, new information or otherwise, in accordance
with the Servicing Standard. If the most recent Fair Value calculation was made
more than 90 days prior to the exercise date of a purchase option (under this
Section 3.18(b) or Section 3.18(c), then the applicable Special Servicer shall
confirm or revise the Fair Value determination, which Fair Value may be higher
or lower. In the event that the applicable Special Servicer or a Directing
Certificateholder or assignee thereof that is an Affiliate of the applicable
Special Servicer proposes to purchase a Defaulted Loan, the applicable Master
Servicer or, if the applicable Master Servicer is then an Affiliate of the
applicable Special Servicer, the Trustee shall determine whether the applicable
Special Servicer's determination of Fair Value for a Defaulted Loan constitutes
a fair price in its reasonable judgment. The Master Servicer making such
determination in accordance with the preceding sentence shall be entitled to
receive from the applicable Special Servicer all information in the applicable
Special Servicer's possession relevant to making such determination and shall be
further entitled to a fee of $2,500 in connection with each such Fair Value
determination. All reasonable costs and expenses of the applicable Special
Servicer and Master Servicer in connection with the determination of the Fair
Value of a Defaulted Loan will be reimbursable as Servicing Advances.

            Unless and until the purchase option granted hereunder with respect
to a Defaulted Mortgage Loan is exercised, the applicable Special Servicer will
be required to pursue such other resolution strategies available hereunder,
including workout and foreclosure, consistent with the Servicing Standard, but
the applicable Special Servicer will not be permitted to sell such Defaulted
Loan other than pursuant to the exercise of such purchase option.

            (c) If the Directing Certificateholder or an assignee thereof has
not purchased any Defaulted Loan provided in Section 3.18(b) within 20 days of
such Holders' having received notice of the calculation of Fair Value pursuant
to Section 3.18(b), then the Trustee shall within five days of the end of such
20-day period send notice to the applicable Special Servicer that such Loan was
not purchased by such Directing Certificateholder, and the applicable Special
Servicer may, at its option, within 20 days after receipt of such notice,
purchase (or designate an Affiliate thereof to purchase) such Loan out of the
Trust Fund at a cash price equal to the applicable purchase price contemplated
under Section 3.18(b). The purchase price for any such Loan purchased under
Section 3.18 shall be deposited into the Collection Account or Companion Loan
Custodial Account, as applicable, maintained by the applicable Master Servicer,
and the Trustee, upon receipt of an Officer's Certificate from the applicable
Master Servicer to the effect that such deposit has been made, shall release or
cause to be released to the applicable Special Servicer (or the designated
Affiliate thereof), as applicable, the related Mortgage File, and shall execute
and deliver such instruments of transfer or assignment, in each case without
recourse, as shall be provided to it and are reasonably necessary to vest in the
applicable Special Servicer (or the designated Affiliate thereof), as
applicable, the ownership of such Loan. Upon the expiration of the right of the
applicable Special Servicer to purchase such Defaulted Loan, the Directing
Certificateholder shall have such option, exclusively. Nothing in this Section
3.18(c) shall be deemed to limit the ability of any Companion Loan Holder or
Junior Loan Holder to purchase the related A Loan in accordance with Section
3.32 or the related Intercreditor Agreement.

            (d) The applicable Special Servicer shall use reasonable efforts to
solicit bids for each REO Property in such manner as will be reasonably likely
to realize a fair price within the time period provided for by Section 3.16(a).
Such solicitation shall be made in a commercially reasonable manner. The
applicable Special Servicer shall accept the highest cash bid received from any
Person for such REO Property in an amount at least equal to the Purchase Price
therefor; provided, however, that in the absence of any such bid, the applicable
Special Servicer shall accept the highest cash bid received from any Person that
is determined by the applicable Special Servicer to be a fair price for such REO
Property. If the applicable Special Servicer reasonably believes that it will be
unable to realize a fair price for any REO Property within the time constraints
imposed by Section 3.16(a), then the applicable Special Servicer shall dispose
of such REO Property upon such terms and conditions as the applicable Special
Servicer shall deem necessary and desirable to maximize the recovery thereon
under the circumstances and, in connection therewith, shall accept the highest
outstanding cash bid, regardless of from whom received. If the applicable
Special Servicer determines with respect to any REO Property that the offers
being made with respect thereto are not in the best interests of the
Certificateholders (or the related Companion Loan Holder or Junior Loan
Holder(s), as applicable, if such REO Property is related to any Loan
Combination or CBA A/B Loan Pair), in each case, taken as a collective whole,
and that the end of the period referred to in Section 3.16(a) with respect to
such REO Property is approaching, the applicable Special Servicer shall seek an
extension of such period in the manner described in Section 3.16(a); provided,
however, that the applicable Special Servicer shall use its best efforts,
consistent with the Servicing Standard, to sell any REO Property prior to three
years prior to the Rated Final Distribution Date.

            The applicable Special Servicer shall give the Trustee, the
applicable Master Servicer and, with respect to any Serviced Loan Combination,
each related Companion Loan Holder or Junior Loan Holder, if any, not less than
three Business Days' prior written notice of its intention to sell any REO
Property. No Interested Person shall be obligated to submit a bid to purchase
any REO Property, and notwithstanding anything to the contrary herein, neither
the Trustee, in its individual capacity, nor any of its Affiliates may bid for
or purchase any REO Property pursuant hereto.

            (e) Whether any cash bid constitutes a fair price for any REO
Property for purposes of Section 3.18(d), shall be determined by the applicable
Special Servicer, if the highest bidder is a Person other than the applicable
Special Servicer or an Affiliate thereof, and by the Trustee if the highest
bidder is the applicable Special Servicer or an Affiliate thereof. In
determining whether any bid received from the applicable Special Servicer or an
Affiliate thereof represents a fair price for any REO Property, the applicable
Special Servicer and the applicable Master Servicer shall obtain and may
conclusively rely on the opinion of an Appraiser (the fees and costs of which
shall be covered by a Servicing Advance by the applicable Master Servicer)
retained by (i) the applicable Master Servicer, if the highest bidder is the
applicable Special Servicer or an Affiliate thereof or (ii) the applicable
Special Servicer, in any other case. In determining whether any bid constitutes
a fair price for any REO Property, such Appraiser shall be instructed to take
into account, as applicable, among other factors, the period and amount of any
delinquency on the affected REO Loan, the occupancy level and physical condition
of the REO Property, the state of the local economy and the obligation to
dispose of any REO Property within the time period specified in Section 3.16(a).
The Purchase Price for any REO Property shall in all cases be deemed a fair
price.

            Subject to subsections (a) through (d) above, the applicable Special
Servicer shall act on behalf of the Trustee and, in the case of any Serviced
Loan Combination, the related Companion Loan Holder or Junior Loan Holder(s), in
negotiating and taking any other action necessary or appropriate in connection
with the sale of any REO Property, and the collection of all amounts payable in
connection therewith. Any sale of any REO Property shall be final and without
recourse to the Trustee or the Trust Fund, and if such sale is consummated in
accordance with the terms of this Agreement, neither the applicable Special
Servicer nor the applicable Master Servicer shall have any liability to any
Certificateholder and, with respect to any Serviced Loan Combination, to any
Companion Loan Holder or Junior Loan Holder, with respect to the purchase price
therefor accepted by the applicable Special Servicer or the applicable Master
Servicer.

            (f) Any sale of any Defaulted Loan or REO Property shall be for cash
only.

            (g) The parties hereto acknowledge the purchase option of each B
Loan Holder with respect to the related A Loan provided for in the related
Intercreditor Agreement. The purchase price paid by any B Loan Holder for the
related A Loan in accordance with such purchase option shall be deposited into
the Collection Account, and the Trustee, upon receipt of written notice from the
Master Servicer to the effect that such deposit has been made, shall execute and
deliver such instruments of transfer or assignment, in each case without
recourse, as shall be provided to it and are reasonably necessary to vest
ownership of such Mortgage Loan in the related B Loan Holder.

            (h) If pursuant to any purchase option provided for in the related
intercreditor, co-lender or similar agreement, a Mezzanine Loan Holder purchases
any Loan, then the purchase price paid by such Mezzanine Loan Holder for such
Loan in accordance with such purchase option shall be deposited into the
Collection Account, and the Trustee, upon receipt of written notice from the
Master Servicer to the effect that such deposit has been made, shall execute and
deliver such instruments of transfer or assignment, in each case without
recourse, as shall be provided to it and are reasonably necessary to vest
ownership of such Loan in such Mezzanine Loan Holder.

            Section 3.19 Additional Obligations of the applicable Master
Servicer and Special Servicer; Inspections; Appraisals.

            (a) The applicable Master Servicer (or, with respect to each
Specially Serviced Loan and REO Property and each Loan described in Section
3.19(b) below, the applicable Special Servicer at the expense of the Trust Fund)
shall physically inspect or cause to be physically inspected (which inspection
may be conducted by an independent third party contractor), at its own expense,
each Mortgaged Property with respect to each Loan for which it is the applicable
Master Servicer at such times and in such manner as are consistent with the
Servicing Standard, but in any event shall inspect each Mortgaged Property (A)
with a Stated Principal Balance equal to or greater than $2,000,000 at least
once every 12 months and (B) with a Stated Principal Balance of less than
$2,000,000 at least once every 24 months, in each case commencing in May 2007
(or at such lesser frequency as each Rating Agency shall have confirmed in
writing to the applicable Master Servicer, will not result a downgrade,
qualification or withdrawal of then-current ratings assigned to any Class of the
Certificates) and (C) if the Loan becomes a Specially Serviced Loan, as soon as
practicable and thereafter at least once every 12 months for so long as such
condition exists. The applicable Master Servicer or applicable Special Servicer,
as applicable, shall send or make available on its website each inspection
report (i) to Fitch and S&P upon request, (ii) to the Series 2006-C4 Directing
Certificateholder and any Requesting Subordinate Certificateholder (at the
expense of such Requesting Holder), (iii) to the Trustee upon request and (iv)
solely as it relates to any related Junior Loan of a Serviced Loan Combination
and so long as the related Companion Loan Holder or Junior Loan Holder is not
the related Borrower or Borrower affiliate, to the related Companion Loan Holder
or Junior Loan Holder.

            (b) With respect to each Loan that allows the mortgagee to
terminate, or cause the related Borrower to terminate, the related Manager upon
the occurrence of certain events specified in such Loan, the applicable Master
Servicer or Special Servicer may enforce the Trustee's rights with respect to
the Manager under the related Loan and Management Agreement, provided that, if
such right accrues under the related Loan or Management Agreement only because
of the occurrence of the related Anticipated Repayment Date, if any, the
applicable Master Servicer or Special Servicer may in its sole discretion, in
accordance with the Servicing Standard, waive such right with respect to such
date. If the applicable Master Servicer or Special Servicer is entitled to
terminate the Manager, the applicable Master Servicer or Special Servicer shall
promptly give notice to the Directing Certificateholder and, with respect to
Significant Loans, to each Rating Agency and, with respect to any Serviced Loan
Combination, to the related Companion Loan Holder or Junior Loan Holder(s);
provided, however, that such notice shall not be required in respect of the
Co-op Loans. In accordance with the Servicing Standard, and, with the consent of
the Directing Certificateholder (which consent shall be deemed granted if not
denied within 10 Business Days), the applicable Master Servicer or Special
Servicer shall cause the Borrower to terminate the Manager, and to recommend a
Successor Manager (meeting the requirements set forth below) only if it
determines in its reasonable discretion that such termination is not likely to
result in successful litigation against the Trust Fund by such Manager or the
related Borrower, or create a defense to the enforcement of remedies under such
Loan; provided, however, no such consent of the Directing Certificateholder
shall be required in connection with the termination of a Manager of a
residential cooperative property with a Stated Principal Balance less than
$5,000,000.

            The applicable Master Servicer or Special Servicer shall effect such
termination only if the applicable Special Servicer has, in the case of any
Specially Serviced Loan that is a Significant Loan, received a written
confirmation from each of the Rating Agencies, that the appointment of such
Successor Manager would not cause such Rating Agency to withdraw, downgrade or
qualify any of the then-current ratings on the Certificates. If a Manager is
otherwise terminated or resigns under the related Management Agreement and the
related Borrower does not appoint a Successor Manager, the applicable Master
Servicer or Special Servicer shall use its best efforts to retain a Successor
Manager (or the recommended Successor Manager, if any) on terms substantially
similar to the Management Agreement or, failing that, on terms as favorable to
the Trust Fund as can reasonably be obtained. For the purposes of this
paragraph, a "Successor Manager" shall be a professional management corporation
or business entity reasonably acceptable to the applicable Master Servicer or
Special Servicer which (i) manages, and is experienced in managing, other
comparable commercial and/or multifamily properties, (ii) in the case of
Significant Loans, will not result in a downgrade, qualification or withdrawal
of then-current ratings assigned to the Certificates by each Rating Agency, as
confirmed by such Rating Agency in writing (if required pursuant to the first
sentence of this paragraph), and (iii) otherwise satisfies any criteria set
forth in the Mortgage and related documents.

            (c) The applicable Special Servicer shall be required to obtain any
Appraisal (the cost of which shall be paid by the applicable Master Servicer as
a Servicing Advance or, in the event such Servicing Advance would be a
Nonrecoverable Advance, an expense of the Trust Fund) required in connection
with an Appraisal Reduction Event or perform an internal valuation (which
Appraisal or internal valuation shall ascribe a value for any residential
cooperative property based on the value of such property as if operated as a
residential cooperative) within 60 days after the occurrence of such Appraisal
Reduction Event (provided that in no event shall the period to receive such
Appraisal exceed 120 days from the occurrence of the event that, with the
passage of time, would become such Appraisal Reduction Event) with respect to
any Loan and Junior Loan for which such Special Servicer is the applicable
Special Servicer. Upon receipt, the applicable Special Servicer shall send a
copy of such Appraisal or internal valuation to the Certificate Administrator,
Master Servicer, the Certificate Owners of the Controlling Class, any Requesting
Subordinate Certificateholder (at the expense of such requesting Holder) and,
with respect to any Serviced Loan Combination, each related Companion Loan
Holder or Junior Loan Holder provided the Companion Loan Holder or Junior Loan
Holder is not the related Borrower or any Affiliate of the Borrower, if any;
provided, however, that as to each such Appraisal or internal valuation, if
beneficial ownership of the Controlling Class resides in more than one
Certificate Owner, the applicable Special Servicer shall be responsible only for
the expense of providing the first such copy thereof and shall be entitled to
reimbursement from the Controlling Class for the expense of any additional
copies so provided. If neither a required Appraisal is received, nor an internal
valuation completed, by such date, the Appraisal Reduction Amount for the
subject Loan or Serviced Loan Combination shall be conclusively established to
be 25% of the Stated Principal Balance of such Loan or Serviced Loan Combination
as of the date of the related Appraisal Reduction Event; provided that the
obligation of the applicable Special Servicer to obtain such Appraisal or
complete such internal valuation shall continue until such Appraisal is obtained
or such internal valuation is completed. On the first Determination Date
occurring on or after the delivery of such Appraisal or the completion of such
internal valuation, and on each Determination Date thereafter (unless and until
the subject Loan becomes a Corrected Loan), the applicable Master Servicer shall
calculate and report (using the CMSA's appraisal reduction template, if any) to
the applicable Special Servicer the Appraisal Reduction Amount taking into
account such Appraisal or internal valuation. The applicable Special Servicer
shall verify the accuracy of the mathematical computation of the Appraisal
Reduction Amount by the applicable Master Servicer and that the amounts used
therein are consistent with the applicable Special Servicer's records and shall
confirm such verification in writing to the Master Servicer not later than 1:00
p.m., New York City time on such Determination Date. Subject to the immediately
preceding sentence, the applicable Master Servicer may conclusively rely on such
confirmation by the applicable Special Servicer of an Appraisal Reduction
Amount.

            (d) With respect to each Loan, Companion Loan or Junior Loan as to
which an Appraisal Reduction Event has occurred (unless such loan has become a
Corrected Loan and has remained current for twelve consecutive Monthly Payments
for such purposes, taking into account any amendment or modification of such
Loan, and with respect to which no other Appraisal Reduction Event or Servicing
Transfer Event has occurred and is continuing), the applicable Special Servicer
shall, within 30 days of each annual anniversary of such Appraisal Reduction
Event, order an Appraisal (which may be an update of a prior Appraisal), or with
respect to any Loan with an outstanding principal balance less than $2,000,000,
perform an internal valuation or obtain an Appraisal (which may be an update of
a prior Appraisal), the cost of which shall be paid by the applicable Master
Servicer as a Servicing Advance. Upon receipt, the applicable Special Servicer
shall send a copy of such Appraisal to the Certificate Owners of the Controlling
Class, any Requesting Subordinate Certificateholder (at the expense of such
requesting Holder) and, with respect to any Serviced Loan Combination, each
related Companion Loan Holder or Junior Loan Holder, if any; provided, however,
that as to each such Appraisal, if beneficial ownership of the Controlling Class
resides in more than one Certificate Owner, the applicable Special Servicer
shall be responsible only for the expense of providing the first such copy
thereof to the Directing Certificateholder and shall be entitled to
reimbursement from the other Certificateholders of the Controlling Class for the
expense of any additional copies so provided. Such Appraisal or internal
valuation or percentage calculation of the Appraisal Reduction described in the
preceding paragraph, as the case may be, shall be used to determine the
Appraisal Reduction Amount with respect to the subject Loan or Serviced Loan
Combination for each Determination Date (using the same procedure set forth in
Section 3.19(c)) until the next Appraisal is required pursuant to this Section
3.19(d), and such redetermined Appraisal Reduction Amount shall replace the
prior Appraisal Reduction Amount with respect to the subject Loan or Serviced
Loan Combination. Notwithstanding the foregoing, the applicable Special Servicer
will not be required to obtain an Appraisal or perform an internal valuation, as
the case may be, with respect to a Loan or Serviced Loan Combination which is
the subject of an Appraisal Reduction Event if the applicable Special Servicer
has obtained an Appraisal with respect to the related Mortgaged Property within
the 12-month period immediately prior to the occurrence of such Appraisal
Reduction Event, unless the applicable Special Servicer, in the exercise of its
reasonable judgment, has reason to believe there has been a material adverse
change in the value of the related Mortgaged Property. Instead, the applicable
Special Servicer may use such prior Appraisal in calculating any Appraisal
Reduction Amount with respect to such Loan or Serviced Loan Combination.

            With respect to any Loan, Companion Loan or Junior Loan as to which
an Appraisal Reduction Event has occurred and which has become a Corrected Loan
and has remained current for twelve consecutive Monthly Payments, taking into
account any amendment or modification of such Loan, and with respect to which no
other Appraisal Reduction Event or Servicing Transfer Event has occurred and is
continuing, the applicable Special Servicer may within 30 days after the date of
such twelfth Monthly Payment, order an Appraisal (which may be an update of a
prior Appraisal), or with respect to any Loan with an outstanding principal
balance less than $2,000,000, perform an internal valuation or obtain an
Appraisal (which may be an update of a prior Appraisal), the cost of which shall
be paid by the applicable Master Servicer as a Servicing Advance. Based upon
such Appraisal or internal valuation, the applicable Special Servicer shall
redetermine and report to the Certificate Administrator, the applicable Master
Servicer and, with respect to any Serviced Loan Combination, each related
Companion Loan Holder or Junior Loan Holder, if any, the amount of the Appraisal
Reduction with respect to the subject Loan or Serviced Loan Combination and such
redetermined Appraisal Reduction shall replace the prior Appraisal Reduction
with respect to the subject Loan or Serviced Loan Combination.

            (e) Upon the determination that a previously made Advance in respect
of any Loan or Serviced Loan Combination is a Nonrecoverable Advance, to the
extent that the reimbursement thereof (together with interest accrued and
payable thereon) would exceed the full amount of the principal portion of
general collections deposited in the Collection Account maintained by the
applicable Master Servicer and (after giving effect to similar such
reimbursements and payments by the other Master Servicers from their respective
Collection Accounts) the principal portion of general collections deposited in
the Collection Accounts maintained by such other Master Servicers, the
applicable Master Servicer or the Trustee, in its sole discretion, as
applicable, instead of obtaining reimbursement for the remaining amount of such
Nonrecoverable Advance (together with interest accrued thereon) pursuant to
Section 3.05(a)(vii) or Section 3.05(b)(v) immediately, may elect to obtain such
reimbursement over a period of time (not to exceed 6 months without the consent
of the Directing Certificateholder or 12 months in any event) for such portion
of the Nonrecoverable Advance and Advance Interest. If the applicable Master
Servicer (or the Trustee) makes such an election in its sole discretion to defer
reimbursement with respect to all or a portion of a Nonrecoverable Advance
(together with interest thereon), then such Nonrecoverable Advance (together
with interest thereon) or portion thereof shall continue to be fully
reimbursable (together with interest accrued thereon) in the subsequent Due
Period (subject, again, to the same option, exercisable in its sole discretion,
to defer; it being acknowledged that, in such a Due Period, such Nonrecoverable
Advance shall again be payable first from principal collections as described
above prior to payment from other collections). In connection with a potential
election by the applicable Master Servicer (or the Trustee) to refrain from the
reimbursement of a particular Nonrecoverable Advance (together with interest
accrued thereon) or portion thereof during the Due Period for any Distribution
Date, the applicable Master Servicer (or the Trustee) shall further be
authorized to wait for principal collections to be received before making its
determination of whether to refrain from the reimbursement of a particular
Nonrecoverable Advance (together with interest accrued thereon) or portion
thereof) until the end of such Due Period. The foregoing shall not, however, be
construed to limit any liability that may otherwise be imposed on such Person
for any failure by such Person to comply with the conditions to making such an
election under this subsection or to comply with the terms of this subsection
and the other provisions of this Agreement that apply once such an election, if
any, has been made. Any election by the applicable Master Servicer (or the
Trustee) to refrain from reimbursing itself for any Nonrecoverable Advance
(together with interest thereon) or portion thereof with respect to any Due
Period shall not be construed to impose on the applicable Master Servicer (or
the Trustee) any obligation to make such an election (or any entitlement in
favor of any Certificateholder or any other Person to such an election) with
respect to any subsequent Due Periods or to constitute a waiver or limitation on
the right of the applicable Master Servicer (or the Trustee) to otherwise be
reimbursed for such Nonrecoverable Advance (together with interest thereon). Any
such election by the applicable Master Servicer or the Trustee shall not be
construed to impose any duty on the other such party to make such an election
(or any entitlement in favor of any Certificateholder or any other Person to
such an election). Any such election by any such party to refrain from
reimbursing itself or obtaining reimbursement for any Nonrecoverable Advance and
Advance Interest or portion thereof with respect to any one or more Due Periods
shall not limit the accrual of interest on such Nonrecoverable Advance for the
period prior to the actual reimbursement of such Nonrecoverable Advance. Any
decision by the Master Servicer to defer reimbursement will be considered
decided in accordance with the Servicing Standard.

            Section 3.20 Modifications, Waivers, Amendments and Consents.

            (a) Subject to the provisions of this Section 3.20, the applicable
Master Servicer and the applicable Special Servicer may, on behalf of the
Trustee, agree to any modification, waiver or amendment of any term of any Loan
without the consent of the Trustee, the Certificate Administrator or any
Certificateholder.

            (b) For any Loan or Serviced Loan Combination, other than a
Specially Serviced Loan, and subject to the rights of the applicable Special
Servicer, Directing Certificateholder, or Junior Loan Holder, the applicable
Master Servicer shall be responsible, subject to the other requirements of this
Agreement (and, if applicable, any related mezzanine loan intercreditor
agreement) with respect thereto, for any request by a Borrower for the consent
of the mortgagee or a modification, waiver or amendment of any term thereof;
provided that such consent or modification, waiver or amendment would not
(except as set forth in Section 3.02 or as set forth in Sections 3.20(e) and
3.20(g)) affect the amount or timing of any of the payment terms of such Loan or
Serviced Loan Combination, result in the release of the related Borrower from
any material term thereunder, waive any rights thereunder with respect to any
guarantor thereof or relate to the release or substitution of any material
collateral for such Loan; provided that this Section 3.20(b) shall not apply to
any waiver or other action contemplated by Sections 3.07 or 3.08. To the extent
consistent with the foregoing, the applicable Master Servicer shall have the
right to grant approvals or waivers or otherwise take actions with respect to,
as applicable, the following (the following items not to be considered
exclusive):

            (i) approving routine leasing activity with respect to: (1) leases
      for properties that are residential cooperative properties; and (2) leases
      for properties other than residential cooperative properties and for less
      than the lesser of (A) 30,000 square feet and (b) 20% of the related
      Mortgaged Property;

            (ii) approving annual budgets for the related Mortgaged Property;
      provided that no such budget (1) relates to a fiscal year in which an
      Anticipated Repayment Date occurs, (2) except with respect to Co-op Loans,
      provides for the payment of operating expenses in an amount equal to more
      than 110% of the amounts budgeted therefor for the prior year or (3)
      provides for the payment of any material expenses to any affiliate of the
      Borrower (other than the payment of a management fee to any property
      manager if such management fee is no more than the management fee in
      effect on the Cut-off Date);

            (iii) waiving any provision of a Loan not requiring the receipt of a
      rating confirmation if such Loan is not a Significant Loan and the related
      provision of such Loan does not relate to a "due-on-sale" or
      "due-on-encumbrance" clause or defeasance (which shall be subject to the
      terms of Section 3.08 hereof) except for waivers of "due-on-encumbrance"
      clauses for Co-op Loans as to which the NCB Subordinate Debt Conditions
      are satisfied;

            (iv) subject to other restrictions herein regarding Principal
      Prepayments, waiving any provision of a Loan requiring a specified number
      of days notice prior to a Principal Prepayment;

            (v) releases of non-material parcels of a Mortgaged Property
      (provided that any such releases (1) are related to a pending or
      threatened condemnation action or (2) are releases as to which the related
      Loan Documents expressly require the mortgagee thereunder to make such
      releases upon the satisfaction of certain conditions which shall be made
      as required by the Loan Documents);

            (vi) grants of easements or rights of way or similar agreements that
      do not materially affect the use or value of a Mortgaged Property or the
      related Borrower's ability to make any payment with respect to the related
      Loan; and

            (vii) consistent with Section 3.02(a), waive any Penalty Charges in
      connection with any delinquent payment on a Loan.

            (viii) consenting to changing the property manager with respect to
      any Co-op Loan and any other Mortgage Loan with an unpaid principal
      balance of less than $5,000,000; and

            (ix) with respect to NCB Loans, disbursements in accordance with the
      terms of the applicable loan documents of any holdback amounts for work
      being performed at the subject Mortgaged Property and any other reserves
      not in the nature of an earn-out reserve.

provided, however, that if in the reasonable judgment of the applicable Master
Servicer any request by a Borrower for consent of the Mortgagee or any
modification, waiver or amendment is not included within the scope of this
subsection (b), the applicable Special Servicer shall approve or otherwise be
responsible for, as the case may be, such request in accordance with subsection
(c) below.

            (c) With respect to any request by a Borrower (to the extent such
request is not included within the scope of Section 3.20(b)) for the consent of
the mortgagee under, or for any modification, waiver or amendment of any term of
any Loan or Serviced Loan Combination that is not a Specially Serviced Loan, or
if such consent, request, modification, waiver or amendment relates to a
Serviced Loan that is on the most recent CMSA Servicer Watch List, has a Debt
Service Coverage Ratio (based on the most recently received financial statements
and calculated on a trailing twelve month basis) less than the greater of 1.1x
(or, in respect of Co-op Loans, 0.9x) and 20% less than the Debt Service
Coverage Ratio as of the Cut-off Date or with respect to which an event of
default has occurred in the preceding 12 months, the applicable Master Servicer
shall receive any such request from Borrower, and shall forward its analysis and
recommendation to the applicable Special Servicer. The applicable Special
Servicer shall approve any such recommendation (which approval shall be deemed
granted if not denied within 15 Business Days of its receipt of the applicable
Master Servicer's recommendation and any additional documents and information
that the applicable Special Servicer may reasonably request) and promptly (in
any event, within not more than 10 Business Days of its receipt of the
applicable Master Servicer's recommendation and any additional documents and
information that the applicable Special Servicer may reasonably request), if
required by Section 3.21(e) or Section 3.32(b), as applicable, forward such
analysis and recommendation to the Directing Certificateholder who (subject to
the last paragraph of Section 3.21(e) or the penultimate paragraph of Section
3.32(b), as applicable) shall approve or reject such recommendation. The
Directing Certificateholder shall, if applicable, be deemed to have approved
such recommendation if not denied within five Business Days of its receipt of
the applicable Special Servicer's recommendation and any additional documents
and information that the Directing Certificateholder may reasonably request. The
applicable Master Servicer shall then process the required documentation.

            The applicable Special Servicer shall be responsible for, and shall
(when required under Section 3.21(e) or Section 3.32, as applicable) obtain the
consent of the Directing Certificateholder (such consent to be subject to the
last paragraph of Section 3.21(e) or the penultimate paragraph of Section
3.32(b), as applicable) with respect to, any Specially Serviced Loan.

            (d) All modifications, waivers or amendments of any Loan shall be
(i) in writing (except for waivers of Penalty Charges) and (ii) effected in
accordance with the Servicing Standard.

            (e) Neither the applicable Master Servicer nor the applicable
Special Servicer, on behalf of the Trustee, shall agree or consent to (or
consent to a Primary Servicer performing), any modification, waiver or amendment
of any term of any Loan, Companion Loan or Junior Loan that is not a Specially
Serviced Loan if such modification, waiver or amendment would:

            (i) affect the amount or timing of any related payment of principal,
      interest or other amount (including Yield Maintenance Charges, but
      excluding Penalty Charges and/or other amounts payable as additional
      servicing compensation) payable thereunder;

            (ii) affect the obligation of the related Borrower to pay a Yield
      Maintenance Charge or Static Prepayment Premium or permit a Principal
      Prepayment during any period in which the related Note prohibits Principal
      Prepayments;

            (iii) except as expressly contemplated by the related Loan Documents
      or in connection with a pending or threatened condemnation, or pursuant to
      Section 3.08(h) or 3.09(e), result in a release of the lien of the
      Mortgage on any material portion of the related Mortgaged Property without
      a corresponding Principal Prepayment in an amount not less than the fair
      market value (as determined by an appraisal by an Appraiser delivered at
      the expense of the related Borrower and upon which the applicable Master
      Servicer and the applicable Special Servicer, as applicable, may
      conclusively rely) of the property to be released; or

            (iv) in the judgment of the applicable Master Servicer or applicable
      Special Servicer, as applicable, otherwise materially impair the security
      for such Loan or Junior Loan, as the case may be, or reduce the likelihood
      of timely payment of amounts due thereon;

The applicable Special Servicer may agree (or permit the Master Servicer to
agree to) to any such modification, waiver or amendment only if: (i) in the
applicable Special Servicer's reasonable judgment, such modification, waiver or
amendment is reasonably likely to produce a greater recovery (or equal recovery)
to Certificateholders (and, in the case of any Junior Loan, the
Certificateholders and the related Companion Loan Holder or Junior Loan
Holder(s), if any), taken as a collective whole (and taking into consideration
the subordinate nature of the Junior Loan, if any), on a net present value
basis; and (ii) unless the Loan or Junior Loan is in default or default is
reasonably foreseeable, the applicable Special Servicer has determined (and may
rely upon an Opinion of Counsel in making such determination) that the
modification, waiver or amendment will not be a "significant modification" of
such Loan or Junior Loan within the meaning of Treasury Regulations Section
1.860G-2(b).

            (f) Notwithstanding anything herein to the contrary, with respect to
each Significant Loan, the related Master Servicer shall be responsible for
obtaining written confirmation from the Rating Agencies that a proposed action
will not result in a downgrade, qualification or withdrawal of any of the
then-current ratings assigned to the Certificates, but only to the extent such
written confirmation is required hereunder or under the terms of the relevant
Loan Documents with respect to any Loan in such Servicing Group that is not a
Specially Serviced Loan or REO Loan.

            (g) Notwithstanding Section 3.20(e), but subject to Sections
3.20(h), 3.20(i), 3.21 and 3.32, the applicable Special Servicer may (i) reduce
the amounts owing under any Specially Serviced Loan by forgiving principal,
accrued interest (including Penalty Charges) and/or any Yield Maintenance Charge
or Static Prepayment Premium, (ii) reduce the amount of the Monthly Payment on
any Specially Serviced Loan, including by way of a reduction in the related
Mortgage Rate, (iii) forbear in the enforcement of any right granted under any
Note or Mortgage relating to a Specially Serviced Loan, (iv) extend the maturity
of any Specially Serviced Loan, (v) waive Excess Interest if such waiver
conforms to the Servicing Standard, (vi) permit the release or substitution of
collateral for a Specially Serviced Loan and/or (vii) accept a Principal
Prepayment during any Lockout Period; provided that the related Borrower is in
default with respect to the Specially Serviced Loan or, in the judgment of the
applicable Special Servicer, such default is reasonably foreseeable.

            (h) Neither the applicable Master Servicer nor the applicable
Special Servicer shall consent to, make or permit (i) any modification with
respect to any Loan, Companion Loan or Junior Loan that would change the
Mortgage Rate, reduce or increase the principal balance (except for reductions
resulting from actual payments of principal) or change the final Maturity Date
(except for any change in the final Maturity Date for up to 60 days (or, with
the consent of the Directing Certificateholder, 120 days), provided the related
Borrower has delivered a firm commitment to refinance that is acceptable to the
applicable Special Servicer, and consented to by the Directing
Certificateholder, within 45 days after the Maturity Date) of such Loan,
Companion Loan or Junior Loan, as the case may be, unless both (A) the related
Borrower is in default with respect to the Loan, Companion Loan or Junior Loan,
as the case may be, or, in the judgment of the applicable Special Servicer, such
default is reasonably foreseeable and (B) in the sole good faith judgment of the
applicable Special Servicer and in accordance with the Servicing Standard, such
modification would increase the recovery on the subject Loan or Serviced Loan
Combination, as applicable, to Certificateholders (and, in the case of any
Serviced Loan Combination, the related Companion Loan Holder or Junior Loan
Holder(s), as applicable), taken as a collective whole, on a net present value
basis (the relevant discounting of amounts that will be distributable to
Certificateholders, or any related Companion Loan Holder or Junior Loan
Holder(s) to be performed at the related Mortgage Rate) or (ii) any
modification, waiver or amendment of any term of any Loan, Companion Loan or
Junior Loan that would either (A) unless there shall exist a default with
respect to such Loan, Companion Loan or Junior Loan (or unless the applicable
Special Servicer determines that a default is reasonably foreseeable),
constitute a "significant modification" under Treasury Regulations Section
1.860G-2(b) or (B) cause any Trust REMIC to fail to qualify as a REMIC under the
Code or result in the imposition of any tax on "prohibited transactions" or
"contributions" after the Startup Day under the REMIC Provisions.

            The determination of the applicable Special Servicer contemplated by
clause (i)(B) of the first paragraph of this Section 3.20(h) shall be evidenced
by an Officer's Certificate to such effect delivered to the Trustee and the
applicable Master Servicer and describing in reasonable detail the basis for the
applicable Special Servicer's determination and the considerations of the
applicable Special Servicer forming the basis of such determination (which shall
include but shall not be limited to information, to the extent available, such
as related income and expense statements, rent rolls (for properties other than
residential cooperative properties), occupancy status and property inspections,
and shall include an Appraisal of the related Mortgaged Property, the cost of
which Appraisal shall be advanced by the applicable Master Servicer as a
Servicing Advance).

            (i) In no event shall the applicable Special Servicer: (i) extend
the Maturity Date of a Loan or Companion Loan beyond a date that is three years
prior to the Rated Final Distribution Date; (ii) extend the Maturity Date of any
Loan or Companion Loan at an interest rate less than the lower of (A) the
interest rate in effect prior to such extension or (B) then prevailing interest
rate for comparable loans, as determined by the applicable Special Servicer by
reference to available indices for commercial mortgage lending; (iii) if the
subject Loan or Companion Loan is secured by a ground lease, extend the Maturity
Date of such Loan or Companion Loan beyond a date which is 10 years prior to the
expiration of the term of such ground lease (after giving effect to all
extension options that have been exercised at that time or may thereafter be
exercised by the lender either pursuant to the applicable Loan Documents or if
the lender shall have succeeded to the rights of the Borrower under the ground
lease through foreclosure or otherwise); or (iv) defer interest due on any Loan
or Companion Loan in excess of 5% of the Stated Principal Balance of such Loan
or Companion Loan; provided that with respect to clause (iii) above, the
applicable Special Servicer gives due consideration to the term of such ground
lease prior to any extension beyond a date 20 years prior to the expiration of
the term of such ground lease (after giving effect to all extension options that
have been exercised at that time or may thereafter be exercised by the lender
either pursuant to the applicable Loan Documents or if the lender shall have
succeeded to the rights of the Borrower under the ground lease through
foreclosure or otherwise). In addition, no Special Servicer shall consent to any
Master Servicer taking any of the actions referred to in clauses (i)-(iv) of the
prior sentence.

            (j) Neither the applicable Master Servicer nor the applicable
Special Servicer may permit or modify a Loan or Companion Loan to permit a
voluntary Principal Prepayment of a Loan or Companion Loan (other than a
Specially Serviced Loan) on any day other than its Due Date, unless (i) the
applicable Master Servicer or applicable Special Servicer also collects interest
thereon through the Due Date following the date of such Principal Prepayment,
(ii) otherwise permitted under the related Loan Documents, (iii) such Principal
Prepayment would not result in a Prepayment Interest Shortfall, (iv) such
Principal Prepayment is accepted by the applicable Master Servicer or the
applicable Special Servicer at the request of or with the consent of the
Directing Certificateholder or if accepted by the applicable Master Servicer,
with the consent of the applicable Special Servicer (subject to Section 3.20(c))
or (v) it is consistent with the Servicing Standard to do so.

            (k) The applicable Master Servicer and the applicable Special
Servicer may, as a condition to granting any request by a Borrower for consent,
modification, waiver or indulgence or any other matter or thing, the granting of
which is within its discretion pursuant to the terms of the related Loan
Documents and is permitted by the terms of this Agreement, require that such
Borrower pay to it (i) as additional servicing compensation, a reasonable or
customary fee for the additional services performed in connection with such
request (provided that such fee does not constitute a "significant modification"
of such Loan or Companion Loan under Treasury Regulations Section 1.860G-2(b)),
and (ii) any related costs and expenses incurred by it. In no event shall the
applicable Special Servicer be entitled to payment for such fees or expenses
unless such payment is collected from the related Borrower.

            (l) The applicable Special Servicer shall, except with respect to
waivers of Penalty Charges, notify the applicable Master Servicer, any related
Sub-Servicers, the Trustee the Certificate Administrator and, with respect to
any Serviced Loan Combination, the related Companion Loan Holder and/or Junior
Loan Holder(s), in writing, of any modification, waiver or amendment of any term
of any Loan, Companion Loan or Junior Loan (including fees charged the Borrower)
and the date thereof, and shall deliver to the Trustee (with a copy to the
applicable Master Servicer) for deposit in the related Mortgage File and, with
respect to any Companion or Junior Loan, to the related Companion Loan Holder or
Junior Loan Holder, as applicable, an original counterpart of the agreement
relating to such modification, waiver or amendment, promptly (and in any event
within 10 Business Days) following the execution thereof. The applicable Master
Servicer or applicable Special Servicer, as applicable, shall notify the Rating
Agencies of any modification, waiver or amendment of any term of any Significant
Loan or Companion Loan. Copies of each agreement whereby any such modification,
waiver or amendment of any term of any Loan, Companion Loan or Junior Loan is
effected shall be made available for review upon prior request during normal
business hours at the offices of the applicable Master Servicer or applicable
Special Servicer, as applicable, pursuant to Section 3.26 hereof.

            (m) With respect to any Loan that permits the related Borrower, with
the consent or grant of a waiver by the mortgagee, to amend or modify the
related Borrower's organizational documents, the applicable Master Servicer or
Special Servicer may, in accordance with the Servicing Standard, consent to such
action, or grant a waiver with respect thereto, provided, however, with respect
to any such amendment or modification that the applicable Master Servicer or
Special Servicer shall deem material, the applicable Master Servicer or Special
Servicer may grant such consent only if it (i) determines that such consent or
grant of waiver is likely to result in an equal or greater recovery on a net
present value basis (discounted at the related Mortgage Rate) than the
withholding of such consent or grant of waiver, and (ii) with respect to
Significant Loans, first obtains (A) written confirmation from each Rating
Agency that such consent or grant of waiver would not, in and of itself, result
in a downgrade, qualification or withdrawal of any of the then-current ratings
assigned to the Certificates and (B) the consent of the Directing
Certificateholder (subject to the last paragraph of Section 3.21(e)) (which
consent shall be deemed granted if not denied in writing within 5 Business Days)
after receipt of a written recommendation and any reasonably requested
information.

            Notwithstanding the foregoing, with respect to any request by a
Borrower under any Loan which is not a Specially Serviced Loan that has been
established as a "bankruptcy-remote entity," for the applicable Master
Servicer's consent to (x) the amendment by such Borrower of its organizational
documents that would violate any covenant of such Borrower relating to its
status as a separate or bankruptcy-remote entity or (y) any other action that
would violate any covenant of such Borrower relating to its status as a separate
or bankruptcy-remote entity, the applicable Master Servicer shall receive such
request from the Borrower and shall forward its analysis and recommendation to
the applicable Special Servicer. The applicable Special Servicer shall approve
or deny any such recommendation in accordance with, and subject to the
conditions set forth in, the prior paragraph, such approval to be deemed granted
if not denied within 10 Business Days of its receipt of the applicable Master
Servicer's recommendation and any additional documents and information that the
applicable Special Servicer may reasonably request.

            (n) Any modification, waiver or amendment of any term of the Loan
Documents with respect to a Serviced Loan Combination (i) shall be performed
subject to the terms and conditions of, and (ii) shall not alter, and shall be
structured so as to preserve, the priority and preference among the applicable A
Loans, Companion Loans and Junior Loan(s), if any, set forth in, the related
Intercreditor Agreement(s).

            (o) If there are any conflicts between this Section 3.20 and a CBA
Intercreditor Agreement, then such CBA Intercreditor Agreement shall control.

            Section 3.21 Transfer of Servicing Between Master Servicer and
Special Servicer; Record Keeping; Asset Status Report.

            (a) Upon determining that a Servicing Transfer Event has occurred
with respect to any Loan, Companion Loan or Junior Loan, the applicable Master
Servicer shall promptly give notice thereof to the applicable Special Servicer,
the Trustee, the Certificate Administrator, each Rating Agency, the Directing
Certificateholder and any Requesting Subordinate Certificateholder (at the
expense of such requesting Holder) (and, solely as it relates to any related
Companion Loan or Junior Loan of a Serviced Loan Combination, any related
Companion Loan Holder or Junior Loan Holder), shall deliver copies of the
related Mortgage File and Servicing File to the applicable Special Servicer and
shall use its reasonable efforts to provide the applicable Special Servicer with
all information, documents and records (including records stored electronically
on computer tapes, magnetic discs and the like) relating to the subject Loan,
Companion Loan or Junior Loan, as applicable, that are in the possession of the
applicable Master Servicer or available to the applicable Master Servicer
without undue burden or expense, and reasonably requested by the applicable
Special Servicer to enable it to assume its functions hereunder with respect
thereto. The applicable Master Servicer shall use its reasonable efforts to
comply with the preceding sentence within five Business Days of the occurrence
of each related Servicing Transfer Event and in any event shall continue to act
as Master Servicer and administrator of the subject Loan, Companion Loan or
Junior Loan, as applicable, until the applicable Special Servicer has commenced
the servicing of such Loan or Companion Loan. The Trustee shall deliver to the
Underwriters, the Initial Purchasers and each Holder of a Certificate of the
Controlling Class, a copy of the notice of such Servicing Transfer Event
provided by the applicable Master Servicer to the applicable Special Servicer
pursuant to this Section.

            Upon determining that a Specially Serviced Loan (other than an REO
Loan) has become a Corrected Loan (provided no additional Servicing Transfer
Event is foreseeable in the reasonable judgment of the applicable Special
Servicer) and that no other Servicing Transfer Event is continuing with respect
thereto, the applicable Special Servicer shall immediately give notice thereof
and shall return the related Mortgage File and Servicing File to the applicable
Master Servicer and, upon giving such notice and returning such Mortgage File
and Servicing File to the applicable Master Servicer, the applicable Special
Servicer's obligation to service such Corrected Loan shall terminate and the
obligations of the applicable Master Servicer to service and administer such
Loan shall re-commence. With respect to any CBA A/B Loan Pair or Loan
Combination, if any, in determining whether such loan has become a Corrected
Loan, the related Companion Loans and Junior Loan(s), if any, must also be
determined to be Corrected Loans for the applicable Special Servicer's
obligation to terminate for such loans.

            (b) In servicing any Specially Serviced Loan, the applicable Special
Servicer shall provide to the Trustee originals of documents included within the
definition of "Mortgage File" for inclusion in the related Mortgage File (with a
copy of each such original to the applicable Master Servicer and, with respect
to any Serviced Loan Combination, to each related Companion Loan Holder or
Junior Loan Holder), and provide the applicable Master Servicer and, with
respect to any Loan Combination, to each related Companion Loan Holder or Junior
Loan Holder, as applicable, with copies of any additional related Loan
information including correspondence with the related Borrower.

            (c) No later than the Business Day following each Determination
Date, by 1:00 p.m. New York City time, each Special Servicer shall deliver to
the applicable Master Servicer a statement, both written and in computer
readable format reasonably acceptable to such Master Servicer and such Special
Servicer (upon which the applicable Master Servicer may conclusively rely)
describing, on a loan-by-loan and property-by-property basis, with respect to
the Specially Serviced Loans and REO Properties for which such Special Servicer
is the applicable Special Servicer, (1) the amount of all payments, Insurance
and Condemnation Proceeds and Liquidation Proceeds received with respect to each
such Specially Serviced Loan during the related Due Period, and the amount of
all REO Revenues, Insurance and Condemnation Proceeds and Liquidation Proceeds
received with respect to each REO Property during the related Due Period, (2)
the amount, purpose and date of all Servicing Advances made by the applicable
Master Servicer with respect to each such Specially Serviced Loan and REO
Property during the related Due Period, (3) the CMSA Special Servicer Loan File
and (4) such additional information or data relating to such Specially Serviced
Loans and REO Properties as the applicable Master Servicer reasonably requests
to enable it to perform its responsibilities under this Agreement which is in
the applicable Special Servicer's possession or is reasonably obtainable by the
applicable Special Servicer.

            (d) Notwithstanding the provisions of the preceding clause (c), with
respect to each of the Specially Serviced Loans and REO Properties for which it
is the applicable Master Servicer, each Master Servicer shall maintain ongoing
payment records and shall provide the applicable Special Servicer with any
information in its possession required by the applicable Special Servicer to
perform its duties under this Agreement.

            (e) No later than 30 days after receipt by the applicable Special
Servicer of the information reasonably required by the applicable Special
Servicer after a Servicing Transfer Event for a Loan, Companion Loan or Junior
Loan, the applicable Special Servicer shall deliver to each Rating Agency, and
the Directing Certificateholder a report (the "Asset Status Report") with
respect to such Loan, Companion Loan or Junior Loan and the related Mortgaged
Property; provided, however, that if either of the 828-850 Madison Avenue Loan
or 3434 North Washington Boulevard Loan becomes a Specially Serviced Loan, the
Special Servicer shall also use its reasonable efforts to provide the Directing
Certificateholder and the applicable Junior Loan Holders with the report
required to be provided in Section 3(c) of the 828-850 Madison Avenue or 3434
North Washington Boulevard Intercreditor Agreement, provided, further, that
delivery of an Asset Status Report within the time frame required for a report
to be delivered in Section 3(c) of the 828-850 Madison Avenue or 3434 North
Washington Boulevard Intercreditor Agreement shall satisfy the requirements of
Section 3(c) of the applicable Intercreditor Agreement. The Special Servicer
shall not take any action under an Asset Status Report until such report has
been delivered to each Master Servicer and, if written confirmation from each
Rating Agency that the proposed action will not lead to a withdrawal, downgrade
or qualification of any then current rating assigned by each Rating Agency to
any Class of Certificate is required under this Agreement, the related
Intercreditor Agreement or the related Loan Documents, such written confirmation
has been obtained. Any Asset Status Report with respect to any Loan Combination
or CBA A/B Loan Pair will also be delivered to the related Companion Loan Holder
or Junior Loan Holder. Such Asset Status Report shall set forth the following
information to the extent reasonably determinable:

            (i) summary of the status of such Specially Serviced Loan;

            (ii) a discussion of the legal and environmental considerations
      reasonably known to the applicable Special Servicer, consistent with the
      Servicing Standard, that are applicable to the exercise of remedies as
      aforesaid and to the enforcement of any related guaranties or other
      collateral for the related Loan or Serviced Loan Combination and whether
      outside legal counsel has been retained;

            (iii) the most current rent roll (for properties other than
      residential cooperative properties) and income or operating statement
      available for the related Mortgaged Property;

            (iv) the Appraised Value of the Mortgaged Property, together with
      the assumptions used in the calculation thereof;

            (v) a recommendation by the applicable Special Servicer as to how
      such Specially Serviced Loan might be returned to performing status,
      returned to the applicable Master Servicer for regular servicing or
      otherwise realized upon;

            (vi) a summary of any proposed actions and an analysis of whether or
      not taking such action is reasonably likely to produce a greater recovery
      on a present value basis than not taking such action, setting forth the
      basis on which the applicable Special Servicer made such determination;

            (vii) a status report on any foreclosure actions or other
      proceedings undertaken with respect to such mortgaged real property, any
      proposed workouts with respect thereto and the status of any negotiations
      with respect to such workouts, and an assessment of the likelihood of
      additional events of default thereon; and

            (viii) such other information as the applicable Special Servicer
      deems relevant in light of the Servicing Standard.

            With respect to any Loan that becomes a Specially Serviced Loan, if
within 10 Business Days of receiving an Asset Status Report, the Directing
Certificateholder (or, with respect to any of the Total Loans, the related
"controlling holder" or "directing holder" as defined in the related
Intercreditor Agreement, if not the same party) does not disapprove such Asset
Status Report in writing, the applicable Special Servicer shall implement the
recommended action as outlined in such Asset Status Report; provided, however,
that the applicable Special Servicer may not take any action that is contrary to
applicable law or the terms of the applicable Loan Documents. If the Directing
Certificateholder (or, with respect to any of the Total Loans, the related
"controlling holder" or "directing holder" as defined in the related
Intercreditor Agreement, if not the same party) disapproves such Asset Status
Report, the applicable Special Servicer shall revise such Asset Status Report
and deliver to the Directing Certificateholder (and, with respect to any of the
Total Loans, the related "controlling holder" or "directing holder" as defined
in the related Intercreditor Agreement, if not the same party), the Rating
Agencies and the applicable Master Servicer a new Asset Status Report as soon as
practicable, but in no event later than 30 days after such disapproval. For
purposes of this Section 3.21(e), Directing Certificateholder shall mean, with
respect to any of the Total Loans, the related "controlling holder" or
"directing holder" as defined in the related Intercreditor Agreement, if not the
same party.

            The applicable Special Servicer shall revise such Asset Status
Report as described above in this Section 3.21(e) until the earlier of (a) the
failure of the Directing Certificateholder to disapprove such revised Asset
Status Report in writing within 10 Business Days of receiving such revised Asset
Status Report; (b) a determination by the applicable Special Servicer as set
forth below or (c) the passage of 60 days from the date of preparation of the
first Asset Status Report. The applicable Special Servicer shall deliver such
finalized Asset Status Report to the Directing Certificateholder (and, with
respect to any of the Total Loans, the related "controlling holder" or
"directing holder" as defined in the related Intercreditor Agreement, if not the
same party), the Rating Agencies, the applicable Master Servicer, the Trustee
and any Requesting Subordinate Certificateholder (at the expense of such
requesting Holder). The applicable Special Servicer may, from time to time,
modify any Asset Status Report it has previously delivered and implement such
report, provided such report shall have been prepared, reviewed and not rejected
pursuant to the terms of this Section. Notwithstanding the foregoing, the
applicable Special Servicer (i) may, following the occurrence of an
extraordinary event with respect to the related Mortgaged Property, take any
action set forth in such Asset Status Report before the expiration of a 10
Business Day period if the applicable Special Servicer has reasonably determined
that failure to take such action would materially and adversely affect the
interests of the Certificateholders, Companion Loan Holders and Junior Loan
Holders (as a collective whole) and it has made a reasonable effort to contact
the Directing Certificateholder and (ii) in any case, shall determine whether
any affirmative disapproval by the Directing Certificateholder described in this
paragraph is not in the best interest of all the Certificateholders pursuant to
the Servicing Standard.

            The applicable Special Servicer shall have the authority to meet
with the Borrower for any Specially Serviced Loan and, subject to Section 3.32
and the next paragraph, take such actions consistent with the Servicing Standard
and any related Asset Status Report. Subject to Section 3.32 and the next
paragraph, the applicable Special Servicer shall not take any action
inconsistent with the related Asset Status Report, unless such action would be
required in order to act in accordance with the Servicing Standard.

            In addition to the foregoing, the applicable Special Servicer is
required to obtain the consent of the Directing Certificateholder (subject to
the last paragraph of Section 3.21(e) and any express provisions of this
Agreement deeming such consent to be given if there is no objection or response
within a specified time period) prior to the taking by the applicable Special
Servicer of the following actions: (i) any proposed or actual foreclosure upon
or comparable conversion of, which may include acquisitions of an REO Property,
the ownership of the property or properties securing any Specially Serviced
Loans in the Trust Fund as come into and continue in default; (ii) any
modification, amendment or waiver of a monetary term (including any change in
the timing of payments but excluding the waiver of Default Interest and late
payment charges) or any material non-monetary term (excluding any waiver of a
due-on-sale or due-on-encumbrance clause, which is covered by clause (ix) below)
of a Loan; (iii) any acceptance of a discounted payoff with respect to a
Specially Serviced Loan in the Trust Fund; (iv) any proposed or actual sale of
an REO Property out of the Trust Fund for less than the outstanding principal
balance of, and accrued interest (other than Default Interest and Excess
Interest) on, the related Loan, except in connection with a termination of the
Trust Fund; (v) any determination to bring an REO Property held by the Trust
Fund into compliance with applicable environmental laws or to otherwise address
hazardous material located at such REO Property; (vi) any release of material
collateral for a Loan, other than in accordance with the specific terms of, or
upon satisfaction of, that Loan; (vii) any acceptance of substitute or
additional collateral for a Specially Serviced Loan in the Trust Fund, other
than in accordance with the specific terms of that Loan; (viii) any releases of
earn-out reserves or related letters of credit with respect to a Mortgaged
Property securing a Loan, other than in accordance with the specific terms of,
or upon satisfaction of, that Loan; and (ix) any waiver of a due-on-sale or
due-on-encumbrance clause in a Loan (other than in the case of a Co-op Loan in
Servicing Group B, any waiver thereof the effect of which is to permit the
related Borrower to incur subordinate debt if the NCB Subordinate Debt
Conditions have been satisfied). If any of the previous listed items is set
forth as proposed action in any Asset Status Report, the applicable Special
Servicer is required to follow the approval procedures set forth above in this
paragraph.

            Notwithstanding anything to the contrary contained in this
Agreement, no direction of the Directing Certificateholder, Companion Loan
Holder or Junior Loan Holder or failure to consent to any action requiring its
or their consent under this Agreement shall (i) require or cause the applicable
Master Servicer or Special Servicer to violate the terms of a Loan or Specially
Serviced Loan, applicable law or any provision of this Agreement, including the
applicable Master Servicer's or Special Servicer's obligation to act in
accordance with the Servicing Standard and to maintain the REMIC status of each
Trust REMIC, or (ii) result in the imposition of a "prohibited transaction" or
"prohibited contribution" tax under the REMIC Provisions, or (iii) expose the
applicable Master Servicer, the applicable Special Servicer, the Depositor, any
of the Mortgage Loan Sellers, the Trust Fund, the Trustee, Companion Loan Holder
or Junior Loan Holder or their Affiliates, shareholders, officers, directors,
members, managers, employees or agents to any claim, suit or liability, or (iv)
materially expand the scope of the applicable Special Servicer's or the
applicable Master Servicer's responsibilities under this Agreement; and the
applicable Master Servicer or Special Servicer, as the case may be, (1) shall
not follow any such direction if given by the Directing Certificateholder,
Companion Loan Holder or Junior Loan Holder, (2) shall not initiate any such
actions having any of the effects in clauses (i)-(iv) of this paragraph and (3)
shall not refrain from taking any action if the failure to take such action
would violate the Servicing Standard.

            (f) Upon receiving notice of the filing of a case under any federal
or state bankruptcy, insolvency or similar law or the commencing of any
insolvency, readjustment of debt, marshaling of assets and liabilities or
similar proceedings with respect to a Serviced Loan or Serviced Loan Combination
or the related Borrower, the applicable Master Servicer shall promptly give
notice thereof, and shall deliver a copy of the related Servicing File to the
applicable Special Servicer and shall use its reasonable efforts to provide the
applicable Special Servicer with all information in its possession relating to
such Serviced Loan or Serviced Loan Combination and reasonably requested by the
applicable Special Servicer to enable it to negotiate with the related Borrower
and prepare for any such proceedings. The applicable Master Servicer shall use
its reasonable efforts to comply with the preceding sentence within five
Business Days of the occurrence of each such event, and upon receiving such
documents and information, the applicable Special Servicer shall use its
reasonable efforts to cause the related Borrower to cure any default and/or
remedy any such event, work out or modify the subject Serviced Loan or Serviced
Loan Combination consistent with the terms of this Agreement, and/or prepare for
such proceedings. Notwithstanding the foregoing, the occurrence of any of the
above-referenced events shall not in and of itself be considered a Servicing
Transfer Event.

            Section 3.22 Sub-Servicing Agreements.

            (a) Each Master Servicer may enter into Sub-Servicing Agreements to
provide for the performance by third parties of any or all of its respective
obligations under this Agreement; provided that the Sub-Servicing Agreement: (i)
is, to the extent of such Master Servicer's obligations being performed by the
related Sub-Servicer, consistent with this Agreement in all material respects
and requires the Sub-Servicer to comply with conditions substantially similar in
all material respects to the applicable conditions of this Agreement; (ii)
provides that if such Master Servicer shall for any reason no longer act in such
capacity hereunder (including by reason of an Event of Default), the Trustee or
its designee or any other successor to such Master Servicer may thereupon assume
all of the rights and, except to the extent they arose prior to the date of
assumption, obligations of such Master Servicer under such agreement or,
alternatively, may terminate such Sub-Servicing Agreement without cause and
without payment of any penalty or termination fee (provided, however, that a
Primary Servicing Agreement may not be terminated except for cause pursuant to
such Primary Servicing Agreement); (iii) provides that the Trustee for the
benefit of the Certificateholders shall be a third-party beneficiary under such
Sub-Servicing Agreement, but that (except to the extent the Trustee or its
designee assumes the obligations of such Master Servicer thereunder as
contemplated by the immediately preceding clause (ii), and except with respect
to the obligations of any successor Master Servicer thereto under the Primary
Servicing Agreements) none of the Trust Fund, the Trustee, any successor or
other Master Servicer, any Special Servicer or any Certificateholder shall have
any duties under such Sub-Servicing Agreement or any liabilities arising
therefrom; (iv) permits any purchaser of a Loan pursuant to this Agreement to
terminate such Sub-Servicing Agreement with respect to such purchased Loan at
its option and without penalty; (v) does not permit the Sub-Servicer any direct
rights of indemnification that may be satisfied out of assets of the Trust Fund
except to the extent of its rights of indemnification, if any, as an agent of
such Master Servicer; (vi) does not permit the Sub-Servicer to foreclose on the
related Mortgaged Property or consent to the modification of any Loan without
the prior consent of such Master Servicer or the applicable Special Servicer, as
applicable; (vii) provides that the Sub-Servicer shall act in accordance either
with the Servicing Standard under this Agreement or a substantially similar (in
all material respects) servicing standard set forth in such Sub-Servicing
Agreement; (viii) provides that in the event of an act or failure to act by the
Sub-Servicer that causes such Master Servicer to be in default of its
obligations under this Agreement, the Sub-Servicer shall be in default of its
obligations under such Sub-Servicing Agreement; and (ix) provides that (A) the
failure of the related Sub-Servicer to comply with any of the requirements under
Article XI of this Agreement that are applicable to such Sub-Servicer under such
Sub-Servicing Agreement (or with requirements set forth in such Sub-Servicing
Agreement that are substantially similar in all material respects to the
requirements under Article XI of this Agreement), including the failure to
deliver any reports or certificates at the time such report or certification is
required under Article XI and (B) the failure of the related Sub-Servicer to
comply with any requirements to deliver any items required by Items 1122 and
1123 of Regulation AB under any other pooling and servicing agreement relating
to any other series of certificates offered by the Depositor shall constitute an
event of default by such Sub-Servicer upon the occurrence of which either the
applicable Master Servicer or the Depositor may immediately terminate the
related Sub-Servicer under the related Sub-Servicing agreement and that such
termination shall be deemed for cause. Any successor Master Servicer, upon
becoming successor Master Servicer, (i) shall have the right to be assigned and
shall have the right to assume any Sub-Servicing Agreements from the predecessor
Master Servicer and (ii) (other than the Trustee or its designee) shall
automatically succeed to the rights and obligations of the prior Master Servicer
under each related Primary Servicing Agreement, subject to the termination
rights set forth therein, it being understood that any such succession by the
Trustee or its designee shall not be automatic but shall be in the discretion of
the Trustee or such designee. With respect to any Sub-Servicing agreement
entered into by Master Servicer No. 1 or Master Servicer No. 2 after the Closing
Date and prior to the date upon which the Trust's Exchange Act reporting
obligations are terminated by the filing of a Form 15 Suspension Notification as
contemplated by Section 11.10, such Sub-Servicer shall not be a Prohibited
Party. Any such Sub-Servicing agreement may permit the Sub-Servicer to delegate
its duties to agents or subcontractors so long as the related agreements or
arrangements with such agents or subcontractors are (or may be required to be),
to the extent of the services to be performed, consistent with the provisions of
this Section 3.22 (including, for the avoidance of doubt, that no such agent or
subcontractor is a Prohibited Party prior to the date upon which the Trust's
Exchange Act reporting obligations are terminated by the filing of a Form 15
Suspension Notification as contemplated by Section 11.10).

            In addition, each Sub-Servicing Agreement entered into by a Master
Servicer may provide that the obligations of the Sub-Servicer thereunder shall
terminate with respect to any Loan serviced thereunder at the time such Loan
becomes a Specially Serviced Loan. Each Master Servicer shall deliver to the
Trustee copies of all Sub-Servicing Agreements, and any amendments thereto and
modifications thereof, entered into by it promptly upon its execution and
delivery of such documents. For purposes of this Agreement, each Master Servicer
shall be deemed to have received any payment when a Sub-Servicer retained by it
receives such payment. Each Master Servicer shall notify the applicable Special
Servicer, the Trustee, the Certificate Administrator and the Depositor in
writing promptly of the appointment by it of any Sub-Servicer (other than the
Primary Servicers). Each Special Servicer shall notify the applicable Master
Servicer, the Trustee, the Certificate Administrator and the Depositor in
writing promptly of the appointment by it of any Sub-Servicer.

            (b) Each Sub-Servicer shall be authorized to transact business in
the state or states in which the related Mortgaged Properties it is to service
are situated, if and to the extent required by applicable law.

            (c) As part of its servicing activities hereunder, each Master
Servicer, for the benefit of the Trustee, the Certificateholders and, with
respect to any Serviced Loan Combination, each related Companion Loan Holder or
Junior Loan Holder, as applicable, shall (at no expense to the Trustee, the
Certificateholders, Companion Loan Holders, Junior Loan Holders or the Trust
Fund) monitor the performance and enforce the obligations of each Sub-Servicer
under the related Sub-Servicing Agreement entered into by such Master Servicer.
Such enforcement, including, without limitation, the legal prosecution of
claims, termination of Sub-Servicing Agreements in accordance with their
respective terms and the pursuit of other appropriate remedies, shall be in such
form and carried out to such an extent and at such time as such Master Servicer
would require were it the owner of the subject Loans and/or Serviced Loan
Combinations. Each Master Servicer shall have the right to remove a Sub-Servicer
retained by it in accordance with the terms of the related Sub-Servicing
Agreement upon the events of default and other termination events specified in
the related Sub-Servicing Agreement.

            (d) If the Trustee or its designee becomes successor to a Master
Servicer and elects or is required to assume the rights and obligations of such
Master Servicer under any Sub-Servicing Agreement, such Master Servicer, at its
expense, shall deliver to the assuming party all documents and records relating
to such Sub-Servicing Agreement and the Loans and/or Serviced Loan Combinations
then being serviced thereunder and an accounting of amounts collected and held
on behalf of it thereunder, and otherwise use reasonable efforts to effect the
orderly and efficient transfer of the Sub-Servicing Agreement to the assuming
party.

            (e) Notwithstanding the provisions of any Sub-Servicing Agreement,
but subject to Section 11.14, each Master Servicer shall remain obligated and
liable to the Trustee, the Certificateholders and, with respect to any Serviced
Loan Combination, each related Companion Loan Holder or Junior Loan Holder, as
applicable, for the performance of its obligations and duties under this
Agreement in accordance with the provisions hereof to the same extent and under
the same terms and conditions as if it alone were servicing and administering
the Loans and/or Serviced Loan Combinations for which it is responsible, and
such Master Servicer shall pay the fees of any Sub-Servicer thereunder from its
own funds or, with respect to the related Primary Servicers, shall permit each
to retain the Primary Servicing Fees and any additional servicing compensation
payable pursuant to the related Sub-Servicing Agreement from amounts collected
by such Primary Servicer. Such additional servicing compensation shall not
exceed the Additional Servicing Compensation payable to the applicable Master
Servicer under this Agreement, shall be paid out of such Additional Servicing
Compensation and shall not be paid from any amount otherwise payable to the
applicable Special Servicer hereunder. In no event shall the Trust Fund bear any
termination fee required to be paid to any Sub-Servicer as a result of such
Sub-Servicer's termination under any Sub-Servicing Agreement.

            Section 3.23 Representations, Warranties and Covenants of the Master
Servicers.

            (a) Each Master Servicer hereby represents and warrants to the
Trustee for its own benefit and the benefit of the Certificateholders, and to
the other Master Servicers, the Depositor, the Special Servicers, the
Certificate Administrator and the Junior Loan Holders, as of the Closing Date,
that:

            (i) Such Master Servicer is a corporation, duly organized, validly
      existing and in good standing under the laws of Ohio (in the case of
      Master Servicer No. 1), or a federal savings bank duly organized, validly
      existing and in good standing under the laws of the United States (in the
      case of Master Servicer No. 2), and such Master Servicer is in compliance
      with the laws of each State in which any Mortgaged Property is located to
      the extent necessary to perform its obligations under this Agreement,
      except where the failure to so qualify or comply would not have a material
      adverse effect on the ability of such Master Servicer to perform its
      obligations hereunder;

            (ii) The execution and delivery of this Agreement by such Master
      Servicer, and the performance and compliance with the terms of this
      Agreement by such Master Servicer, will not (A) violate the Master
      Servicer's certificate of incorporation or charter and by-laws or other
      comparable organizational documents or (B) constitute a default (or an
      event which, with notice or lapse of time, or both, would constitute a
      default) under, or result in the breach of, any material agreement or
      other material instrument to which it is a party or by which it is bound,
      or (C) result in the violation of any law, rule, regulation, order,
      judgment or decree binding on such Master Servicer which, in the case of
      either (B) or (C) is likely to materially and adversely affect such Master
      Servicer's ability to perform hereunder;

            (iii) This Agreement, assuming due authorization, execution and
      delivery by the other parties hereto, constitutes a valid, legal and
      binding obligation of such Master Servicer, enforceable against such
      Master Servicer in accordance with the terms hereof, except as such
      enforcement may be limited by (A) applicable bankruptcy, insolvency,
      reorganization, liquidation, receivership, moratorium and other laws
      relating to or affecting creditors' rights generally, and (B) general
      principles of equity, regardless of whether such enforcement is considered
      in a proceeding in equity or at law;

            (iv) Such Master Servicer is not in violation with respect to any
      law, any order or decree of any court, or any order, regulation or demand
      of any federal, state, municipal or governmental agency, which violations
      are reasonably likely to have consequences that would materially and
      adversely affect the financial condition or operations of such Master
      Servicer or its properties taken as a whole or are reasonably likely to
      have consequences that would materially and adversely affect its ability
      to perform its duties and obligations hereunder;

            (v) No litigation is pending or, to the best of such Master
      Servicer's knowledge, threatened against such Master Servicer which, if
      determined adversely to such Master Servicer, would prohibit such Master
      Servicer from entering into this Agreement or, in such Master Servicer's
      good faith and reasonable judgment, is likely to materially and adversely
      affect the ability of such Master Servicer to perform its obligations
      under this Agreement;

            (vi) No consent, approval, authorization or order of any court or
      governmental agency or body is required for the execution, delivery and
      performance by such Master Servicer, or compliance by such Master Servicer
      with, this Agreement or the consummation of such Master Servicer's
      transactions contemplated by this Agreement, except for any consent,
      approval, authorization or order which has been obtained or cannot be
      obtained prior to the actual performance by such Master Servicer of its
      obligations under this Agreement, or which, if not obtained would not have
      a materially adverse effect on the ability of such Master Servicer to
      perform its obligations hereunder;

            (vii) Such Master Servicer has full corporate power and authority to
      enter into and perform in accordance with this Agreement, has duly
      authorized the execution, delivery and performance of this Agreement, and
      has duly executed and delivered this Agreement;

            (viii) Such Master Servicer has examined each Sub-Servicing
      Agreement to which it is a party, and shall examine each Sub-Servicing
      Agreement to which it intends to become a party, and in each such case,
      the terms of such Sub-Servicing Agreements are not, or, in the case of any
      Sub-Servicing Agreement to be entered into by such Master Servicer at a
      future date, will not be, materially inconsistent with the terms of this
      Agreement; and

            (ix) Each officer and employee of such Master Servicer that has
      responsibilities concerning the servicing and administration of Loans
      and/or Junior Loans is covered by errors and omissions insurance and the
      fidelity bond in the amounts and with the coverage required by Section
      3.07(c).

            (b) The representations and warranties set forth in paragraph (a)
above shall survive the execution and delivery of the Agreement.

            Section 3.24 Representations, Warranties and Covenants of the
Special Servicers.

            (a) Each Special Servicer hereby represents and warrants to the
Trustee, for its own benefit and the benefit of the Certificateholders, and to
the other Special Servicer, the Depositor, the Master Servicers, the Certificate
Administrator and the Junior Loan Holders, as of the Closing Date and as to such
Special Servicer, that:

            (i) Such Special Servicer is a corporation duly organized, validly
      existing and in good standing under the laws of the State of Florida (in
      the case of Special Servicer No. 1) or a corporation duly organized,
      validly existing and in good standing under the laws of the United States
      (in the case of Special Servicer No. 2), and such Special Servicer is in
      compliance with the laws of each State in which any Mortgaged Property is
      located to the extent necessary to perform its obligations under this
      Agreement;

            (ii) The execution and delivery of this Agreement by such Special
      Servicer, and the performance and compliance with the terms of this
      Agreement by such Special Servicer, will not violate such Special
      Servicer's certificate of incorporation and by-laws or comparable
      organizational documents or constitute a default (or an event which, with
      notice or lapse of time, or both, would constitute a default) under, or
      result in the breach of, any material agreement or other instrument to
      which it is a party or which is applicable to it or any of its assets, or
      result in the violation of any law, rule, regulation, order, judgment or
      decree to which such Special Servicer or its property is subject;

            (iii) Such Special Servicer has the full power and authority to
      enter into and consummate all transactions contemplated by this Agreement,
      has duly authorized the execution, delivery and performance of this
      Agreement, and has duly executed and delivered this Agreement;

            (iv) This Agreement, assuming due authorization, execution and
      delivery by each of the other parties hereto, constitutes a valid, legal
      and binding obligation of such Special Servicer, enforceable against such
      Special Servicer in accordance with the terms hereof, subject to (A)
      applicable bankruptcy, insolvency, reorganization, moratorium and other
      laws affecting the enforcement of creditors' rights generally and (B)
      general principles of equity, regardless of whether such enforcement is
      considered in a proceeding in equity or at law;

            (v) Such Special Servicer is not in violation of, and its execution
      and delivery of this Agreement and its performance and compliance with the
      terms of this Agreement will not constitute a violation of, any law, any
      order or decree of any court or arbiter, or any order, regulation or
      demand of any federal, state or local governmental or regulatory
      authority, which violation, in such Special Servicer's good faith and
      reasonable judgment, is likely to affect materially and adversely either
      the ability of such Special Servicer to perform its obligations under this
      Agreement or the financial condition of such Special Servicer;

            (vi) No litigation is pending or, to the best of such Special
      Servicer's knowledge, threatened against such Special Servicer which would
      prohibit such Special Servicer from entering into this Agreement or, in
      such Special Servicer's good faith and reasonable judgment, is likely to
      materially and adversely affect either the ability of such Special
      Servicer to perform its obligations under this Agreement or the financial
      condition of such Special Servicer;

            (vii) Each officer, director or employee of such Special Servicer
      that has or, following the occurrence of a Servicing Transfer Event, would
      have responsibilities concerning the servicing and administration of Loans
      and/or Junior Loans is covered by errors and omissions insurance and
      fidelity bond in the amounts and with the coverage required by Section
      3.07(c). Neither such Special Servicer nor any of its officers, directors
      or employees that is or, following the occurrence of a Servicing Transfer
      Event, would be involved in the servicing or administration of Loans has
      been refused such coverage or insurance;

            (viii) No consent, approval, authorization or order of any court or
      governmental agency or body is required for the execution, delivery and
      performance by such Special Servicer, or compliance by such Special
      Servicer with, this Agreement or the consummation of the transactions
      contemplated by this Agreement, except for any consent, approval,
      authorization or order which has been obtained or cannot be obtained prior
      to the actual performance by such Special Servicer of its obligations
      under this Agreement, or which, if not obtained would not have a
      materially adverse effect on the ability of such Special Servicer to
      perform its obligations hereunder;

            (ix) The Special Servicing Fee payable to such Special Servicer
      represents reasonable servicing compensation for its services hereunder;
      and

            (x) Such Special Servicer has examined each Sub-Servicing Agreement
      to which it is a party, and shall examine each Sub-Servicing Agreement to
      which it intends to become a party, and in each such case, the terms of
      such Sub-Servicing Agreements are not, or, in the case of any
      Sub-Servicing Agreement to be entered into by such Special Servicer at a
      future date, will not, be materially inconsistent with the terms of this
      Agreement.

            (b) The representations and warranties set forth in paragraph (a)
above shall survive the execution and delivery of the Agreement. Section 3.25
Limitation on Liability of the Directing Certificateholder. By its acceptance of
a Certificate, each Certificateholder confirms its understanding that the
Directing Certificateholder may take actions that favor the interests of one or
more Classes of the Certificates over other Classes of the Certificates and that
the Directing Certificateholder may have special relationships and interests
that conflict with those of Holders of some Classes of the Certificates and,
that the Directing Certificateholder shall have no liability to any
Certificateholder other than a Controlling Class Certificateholder for any
action taken or not taken and shall have no liability to a Controlling Class
Certificateholder absent willful misfeasance, bad faith, negligence or negligent
disregard of obligations or duties on the part of the Directing
Certificateholder, it being acknowledged that actions that favor the interests
of one or more Classes of the Certificates over other Classes of the
Certificates shall be deemed to not constitute willful misfeasance, bad faith,
negligence or negligent disregard of obligations or duties on the part of the
Directing Certificateholder) and each Certificateholder agrees to take no action
against the Directing Certificateholder as a result of such a special
relationship or conflict. Nothing in this section shall relieve a Special
Servicer of any liability it may have under this Agreement.

            Section 3.26 [Reserved].

            Section 3.27 Lock-Box Accounts and Servicing Accounts.

            (a) The applicable Master Servicer shall administer each Lock-Box
Account, Cash Collateral Account and Servicing Account in accordance with the
related Mortgage or Loan Agreement, Cash Collateral Account Agreement or
Lock-Box Agreement, if any. Each Lock-Box Account, Cash Collateral Account and
Servicing Account shall be an Eligible Account, except to the extent provided in
the related Loan Documents.

            (b) For any Loan that provides that a Lock-Box Account will be
established upon the occurrence of certain events specified in the related Loan
Documents, the applicable Master Servicer shall establish or cause to be
established on behalf of the Trust such Lock-Box Account upon the occurrence of
such events unless the Master Servicer determines, in accordance with the
Servicing Standard, that such Lock-Box Account should not be established.
Notwithstanding the foregoing, the applicable Master Servicer shall establish or
cause to be established a Lock-Box Account for each ARD Loan (if permitted by
the related loan documents) no later than its Anticipated Repayment Date.

            (c) Reserved.

            (d) Within 60 days after a Servicing Account has been established on
behalf of a Borrower pursuant to the terms of the related Loan Documents, the
applicable Master Servicer (in accordance with the Uniform Commercial Code)
shall notify the financial institution maintaining such account of the Trustee's
security interest in the funds in such account in those jurisdictions where
required in order to perfect or maintain perfection of the related security
interest.

            Section 3.28 Interest Reserve Account.

            (a) The Certificate Administrator shall establish, on or before the
Closing Date, and maintain the Interest Reserve Account. The Certificate
Administrator shall maintain the Interest Reserve Account at its Corporate Trust
Office and on behalf of the Lower-Tier REMIC. The Certificate Administrator
shall give notice to the Master Servicers, the Special Servicers and the
Depositor of the location of the Interest Reserve Account and, prior to any
change thereof, any new location of the Interest Reserve Account. On each
Distribution Date during February and on each Distribution Date during a January
which occurs in a year which is not a leap year, unless, in either case, such
Distribution Date is the final Distribution Date, the Certificate Administrator
shall withdraw from the Distribution Account and deposit into the Interest
Reserve Account in respect of each Loan and REO Loan (or the 828-850 Madison
Avenue Loan REMIC Regular Interest in the case of the 828-850 Madison Avenue
Loan) accruing interest on an Actual/360 Basis, an amount withheld from the
related Monthly Payment or P&I Advance equal to one day's interest on the Stated
Principal Balance of such Loan or interest as of the Distribution Date occurring
in the month preceding the month in which the Distribution Date occurs at the
related Original Net Mortgage Rate (or, in the case of a Specially Designated
Co-op Loan, at the related Original Net Mortgage Rate minus 0.10% per annum), to
the extent a full Monthly Payment or P&I Advance is made in respect thereof (all
amounts so deposited in any January, except in the case of a leap year, and in
any February, "Withheld Amounts").

            (b) On each Distribution Date occurring in March (or in February, if
the final Distribution Date occurs in such month) (prior to any distributions on
the Certificates on such date), Certificate Administrator shall withdraw from
the Interest Reserve Account an amount equal to the Withheld Amounts from the
preceding January and February Distribution Dates, if any, and deposit such
amount (excluding any net investment income thereon) into the Distribution
Account. On each Distribution Date (prior to any distributions on the
Certificates on such date), Certificate Administrator shall deposit any Net
Investment Loss into the Interest Reserve Account and, to the extent permitted
by Section 3.06, shall be permitted to withdraw any Net Investment Earnings from
the Interest Reserve Account.

            Section 3.29 Limitations on and Authorizations of the Master
Servicers and Special Servicers with Respect to Certain Loans.

            (a) Prior to taking any action with respect to a Loan secured by any
Mortgaged Properties located in a "one-action" state, the applicable Special
Servicer shall consult with legal counsel, the fees and expenses of which shall
be a Servicing Advance.

            (b) Reserved.

            (c) With respect to any ARD Loan, so long as no event of default
beyond applicable notice and grace periods has occurred and is continuing, the
applicable Master Servicer and the applicable Special Servicer shall not take
any enforcement action with respect to the payment of Excess Interest or
principal in excess of the principal component of the constant Monthly Payment,
other than requests for collection, until the date on which principal and all
accrued interest (other than Excess Interest) has been paid in full (the failure
of the Borrower to pay Excess Interest shall not be considered an event of
default for purposes of this paragraph). Nothing in this paragraph shall limit
the obligation of the applicable Master Servicer and the applicable Special
Servicer to establish a Lock-Box Account pursuant to Section 3.28.

            (d) Neither the applicable Master Servicer nor the applicable
Special Servicer shall consent (to the extent it is entitled to withhold such
consent under the terms of the Loan) to a change of franchise affiliation with
respect to any hotel property that in whole or in part constitutes the Mortgaged
Property securing a Loan unless it obtains (in the case of a Significant Loan)
written confirmation from each Rating Agency that such change of franchise
affiliation would not, in and of itself, result in a downgrade, qualification or
withdrawal of then-current ratings on any Class of Certificates and further
obtains (in all cases) the consent of the Directing Certificateholder (such
consent subject to the last paragraph of Section 3.21(e)). The applicable Master
Servicer shall receive any such request from any Borrower under a Loan that is
not a Specially Serviced Loan, and shall forward its analysis and recommendation
to the applicable Special Servicer. The applicable Special Servicer shall
approve any such recommendation (which approval shall be deemed granted if not
denied within 15 Business Days of its receipt of the applicable Master
Servicer's recommendation and any additional documents and information that the
applicable Special Servicer may reasonably request) and promptly (in any event,
within not more than 10 Business Days of its receipt of the applicable Master
Servicer's recommendation and any additional documents and information that the
applicable Special Servicer may reasonably request) forward such analysis and
recommendation to the Directing Certificateholder, who shall approve or reject
such recommendation (such approval subject to the last paragraph of Section
3.21(e)). The Directing Certificateholder shall be deemed to have approved such
recommendation if not denied within five Business Days of its receipt of the
applicable Special Servicer's recommendation and any additional documents and
information that the Directing Certificateholder may reasonably request. The
applicable Master Servicer shall then process such documentation. Neither the
applicable Master Servicer nor the applicable Special Servicer shall be required
to obtain such written consent from Fitch if then-current principal balance of
such Loan is less than 2% of then-current aggregate principal balance of the
Mortgage Pool.

            (e) The applicable Master Servicer (or, in the case of CSMC Loans
only, the Depositor) shall, as to each Loan which is secured by the interest of
the related Borrower under a ground lease, promptly (and in any event within 45
days of the Closing Date) notify the related ground lessor of the transfer of
such Loan to the Trust pursuant to this Agreement and inform such ground lessor
that any notices of default under the related ground lease should thereafter be
forwarded to the related Master Servicer.

            (f) The applicable Master Servicer shall not grant any discretionary
consent to a transfer of any Junior Loan pursuant to the related Intercreditor
Agreement or to any additional cure beyond those specifically provided for in
the related Intercreditor Agreement unless it obtains the consent of the
Directing Certificateholder (which consent with respect to the transfer of such
Junior Loan shall not be unreasonably withheld, conditioned or delayed) (such
consent subject to the last paragraph of Section 3.21(e)). The applicable Master
Servicer shall receive any such request for a discretionary consent from any
Junior Loan Holder, and shall forward its analysis and recommendation to the
applicable Special Servicer. The applicable Special Servicer shall approve any
such recommendation (which approval shall be deemed granted if not denied within
15 Business Days of its receipt of the applicable Master Servicer's
recommendation and any additional documents and information that the applicable
Special Servicer may reasonably request) and promptly (in any event, within not
more than 10 Business Days of its receipt of the applicable Master Servicer's
recommendation and any additional documents and information that the applicable
Special Servicer may reasonably request) forward such analysis and
recommendation to the Directing Certificateholder, who (subject to the last
paragraph of Section 3.21(e)) shall approve or reject such recommendation. The
Directing Certificateholder shall be deemed to have approved such recommendation
if not denied within five Business Days of its receipt of the applicable Special
Servicer's recommendation and any additional documents and information that the
Directing Certificateholder may reasonably request. The applicable Master
Servicer shall then process such documentation. Notwithstanding the foregoing,
the applicable Master Servicer shall not grant any discretionary consent to a
transfer of any Junior Loan pursuant to the related Intercreditor Agreement
unless it receives the rating agency confirmation required pursuant to such
Intercreditor Agreement.

            Section 3.30 REMIC and Grantor Trust Administration.

            (a) The Certificate Administrator shall make or cause to be made
elections to treat each of the Trust REMICs as a REMIC under the Code and if
necessary, under State Tax Laws. Each such election will be made on Form 1066 or
other appropriate federal tax or information return or any appropriate state
return for the taxable year ending on the last day of the calendar year in which
the Certificates are issued, which in each case shall be signed by the
Certificate Administrator. The Certificate Administrator shall designate the
"regular interests" and the "residual interests," within the meaning of the
REMIC Provisions, in each Trust REMIC as set forth in the Preliminary Statement
hereto. To the extent the affairs of the Trust Fund are within their control,
none of the Master Servicers, the Special Servicers and the Certificate
Administrator shall permit the creation of any "interests" (within the meaning
of Section 860G of the Code) in any Trust REMIC other than those interests
outstanding on the Closing Date.

            (b) The Closing Date is hereby designated as the "startup day,"
within the meaning of Section 860G(a)(9) of the Code, of the Upper-Tier and
Lower-Tier REMIC. The "startup day" for the 828-850 Madison Avenue Loan REMIC is
set forth in the REMIC Declaration.

            (c) The Holder of the largest Percentage Interest of the Class R
Certificates is hereby designated, and by the acceptance of its Class R
Certificate agrees to act, as Tax Matters Person for each Trust REMIC. The
Certificate Administrator is hereby designated as the agent of the Tax Matters
Person of each Trust REMIC and shall perform all the functions thereof, and the
Holders of the Class R Certificates, by their acceptance of such Certificates,
agree to such designation.

            (d) The Certificate Administrator shall prepare or cause to be
prepared and shall submit to the Trustee for execution (and the Trustee shall
execute) all of the Tax Returns that it reasonably determines are required with
respect to each Trust REMIC and, as specified in Section 4.06, the Grantor
Trust, and the Certificate Administrator shall file or cause to be filed such
Tax Returns in a timely manner. The expenses of preparing such returns shall be
borne by the Certificate Administrator without any right of reimbursement
therefor.

            (e) The Certificate Administrator shall provide (i) upon request by
any Transferor of a Class R Certificate, such information to such Transferor and
the IRS as is (x) reasonably necessary for the application of any tax relating
to the transfer of a Class R Certificate to any Person who is not a Disqualified
Organization or (y) otherwise required to be provided by Treasury Regulations
Section 1.860E-2 (and in the time and manner required to be provided to such
person under such Regulations), (ii) to the Certificateholders such information
or reports as are required by the Code, the REMIC Provisions or State Tax Laws
including reports relating to interest, original issue discount and market
discount or premium (using the Prepayment Assumption) and (iii) pursuant to
Section 3.30(l), to the Internal Revenue Service the name, title, address and
telephone number of the person who will serve as the representative of each of
the Trust REMICs.

            (f) The Certificate Administrator shall take such actions and shall
cause the Trust Fund to take such actions as are reasonably within the
Certificate Administrator's control and the scope of its duties more
specifically set forth herein as shall be necessary to maintain the status of
each Trust REMIC as a REMIC under the REMIC Provisions (and each of the Master
Servicers, Special Servicers and the Trustee shall assist the Certificate
Administrator, to the extent reasonably requested by the Certificate
Administrator to do so). None of the Master Servicers, the Special Servicers,
the Trustee and the Certificate Administrator shall knowingly or intentionally
take any action, cause any Trust REMIC to take any action or fail to take (or
fail to cause to be taken) any action reasonably within its control and the
scope of duties more specifically set forth herein, that, under the REMIC
Provisions, if taken or not taken, as the case may be, could, in such Person's
reasonable judgment, (i) cause any Trust REMIC to fail to qualify as a REMIC or
(ii) result in the imposition of a tax under the REMIC Provisions upon any Trust
REMIC (including but not limited to the tax on prohibited transactions as
defined in Section 860F(a)(2) of the Code and the tax on contributions to a
REMIC set forth in Section 860G(d) of the Code, but not including the tax on net
income from foreclosure property imposed by Section 860G(c) of the Code) (either
such event, an "Adverse REMIC Event") unless such party receives an Opinion of
Counsel (at the expense of the related Borrower (if such expense may be imposed
on the related Borrower pursuant to the applicable Mortgage Loan documents), or,
if the related Borrower fails or is not required to pay such expense, and the
applicable Master Servicer, Special Servicer or Certificate Administrator, as
the case may be, determines that taking such action is in the best interest of
the Trust Fund and the Certificateholders, at the expense of the Trust Fund, but
in no event at the expense of the applicable Master Servicer, Special Servicer
or Certificate Administrator) to the effect that the contemplated action will
not, with respect to any Trust REMIC cause such Trust REMIC to fail to qualify
as a REMIC or, unless such party (which is acceptable to the Certificate
Administrator) determines that the monetary expense to such Trust REMIC is not
material and in its sole discretion agrees to indemnify (to the extent
reasonably acceptable to the Certificate Administrator) the Trust Fund against
such tax, result in the imposition of such a tax. Wherever in this Agreement a
contemplated action may not be taken because the timing of such action might
result in the imposition of a tax on the Trust Fund, or may be taken only
pursuant to an Opinion of Counsel that such action would not impose a tax on the
Trust Fund, such action may nonetheless be taken so long as (x) the indemnity
given in the preceding sentence with respect to any taxes that might be imposed
on the Trust Fund has been given and (y) all other preconditions to the taking
of such action have been satisfied. The Certificate Administrator shall not take
any action (whether or not authorized hereunder) as to which any Master Servicer
has advised it in writing that it has received an Opinion of Counsel to the
effect that an Adverse REMIC Event could occur with respect to such action. In
addition, prior to taking any action with respect to the Trust Fund or the
assets thereof, or causing the Trust Fund to take any action, which is not
expressly permitted under the terms of this Agreement, each of the parties
hereto will consult with the Certificate Administrator or its designee, in
writing, with respect to whether such action could cause an Adverse REMIC Event
to occur with respect to any Trust REMIC, and such party shall not take any such
action, or cause the Trust Fund to take any such action, as to which the
Certificate Administrator has advised it in writing that an Adverse REMIC Event
could occur. The Certificate Administrator may consult with counsel to make such
written advice, and the cost of same shall be borne by the party seeking to take
the action not expressly permitted by this Agreement. At all times as may be
required by the Code, the Certificate Administrator will to the extent within
its control and the scope of its duties as specifically set forth herein,
maintain substantially all of the assets of the Trust Fund as "qualified
mortgages" as defined in Section 860G(a)(3) of the Code and "permitted
investments" as defined in Section 860G(a)(5) of the Code.

            (g) In the event that any tax is imposed on "prohibited
transactions" of any Trust REMIC as defined in Section 860F(a)(2) of the Code,
on "prohibited contributions" of any Trust REMIC as defined in Section 860G(d)
of the Code, or any other tax is imposed by the Code or any applicable
provisions of state or local tax laws (other than a tax on "net income from
foreclosure property" as defined in Section 860G(c) of the Code, provided that
the applicable Special Servicer complied with all requirements specified herein
for foreclosure property), such tax shall be charged (i) to the applicable
Master Servicer, if such tax arises out of or results from a breach, which
breach constitutes negligence or willful misconduct of such Master Servicer, by
such Master Servicer of any of its obligations under this Agreement and such
breach is not caused by the breach of another party, (ii) to the Certificate
Administrator, if such tax arises out of or results from a breach by the
Certificate Administrator of any of its obligations under this Agreement and
such breach is not caused by the breach of another party, (iii) to the Trustee,
if such tax arises out of or results from a breach by the Trustee of any of its
obligations under this Agreement and such breach is not caused by the breach of
another party, (iv) to the applicable Special Servicer, if such tax arises out
of or results from a breach by such Special Servicer of any of its obligations
under this Agreement and such breach is not caused by the breach of another
party and (v) otherwise, against amounts on deposit in the applicable Collection
Account.

            (h) The Certificate Administrator shall, for federal income tax
purposes, maintain books and records with respect to each of the Trust REMICs on
a calendar year and on an accrual basis or as otherwise may be required by the
REMIC Provisions.

            (i) Following the Startup Day, none of the Master Servicers, the
Special Servicers, the Trustee and the Certificate Administrator shall accept
any contributions of assets to any Trust REMIC unless the Master Servicers, the
Special Servicers, the Trustee and the Certificate Administrator shall have
received an Opinion of Counsel (at the expense of the party seeking to make such
contribution) to the effect that the inclusion of such assets in such Trust
REMIC will not cause such Trust REMIC to fail to qualify as a REMIC at any time
that any Certificates are outstanding or subject any Trust REMIC to any tax
under the REMIC Provisions or other applicable provisions of federal, state and
local law or ordinances.

            (j) None of the Master Servicers, the Special Servicers, the Trustee
and the Certificate Administrator shall enter into any arrangement by which any
Trust REMIC created hereunder will receive a fee or other compensation for
services nor, to the extent reasonably within their control, permit any Trust
REMIC to receive any income from assets other than "qualified mortgages" as
defined in Section 860G(a)(3) of the Code or "permitted investments" as defined
in Section 860G(a)(5) of the Code.

            (k) For the purposes of Treasury Regulations Section
1.860G-1(a)(4)(iii), the "latest possible maturity date" of the 828-850 Madison
Avenue Loan REMIC Regular Interest, the Uncertificated Lower-Tier Interests and
the Regular Certificates is the same date as the Rated Final Distribution Date.

            (l) Within 30 days after the Closing Date, the Certificate
Administrator shall obtain a taxpayer identification number for each Trust REMIC
on Form SS-4 and shall prepare and file with the Internal Revenue Service Form
8811, "Information Return for Real Estate Mortgage Investment Conduits (REMIC)
and Issuers of Collateralized Debt Obligations" (or applicable successor form)
for each REMIC created hereunder.

            (m) None of the Certificate Administrator, the Trustee, the Master
Servicers and the Special Servicers shall sell or dispose of or substitute for
any of the Loans (except in connection with (i) the default, imminent default or
foreclosure of a Loan, including but not limited to, the acquisition or sale of
a Mortgaged Property acquired by deed in lieu of foreclosure, (ii) the
bankruptcy of the Trust Fund, (iii) the termination of the Trust Fund created
hereunder pursuant to Article X of this Agreement or (iv) a purchase of Loans
pursuant to or as contemplated by Article II, Section 3.18 or Section 3.32 of
this Agreement or pursuant to any Intercreditor Agreement or mezzanine
intercreditor agreement) nor acquire any assets for any Trust REMIC, nor sell or
dispose of any investments in any account maintained by it hereunder for gain,
nor accept any contributions to any Trust REMIC after the Closing Date, unless
it has received an Opinion of Counsel (which opinion shall be the expense of the
party seeking to take such action) that such sale or disposition will not affect
adversely the status of any Trust REMIC as a REMIC or cause any Trust REMIC to
be subject to a tax on "prohibited transactions" or "contributions" pursuant to
the REMIC Provisions.

            (n) The Depositor shall provide or cause to be provided to the
Certificate Administrator, within 10 days after the Closing Date, and thereafter
on an ongoing basis, all information or data requested by the Certificate
Administrator that the Certificate Administrator reasonably determines to be
relevant for tax purposes as to the valuations and Issue Prices of the
Certificates, including without limitation, the price, yield, original issue
discount, issue premium and projected cash flow of the Certificates. In
addition, each of the Master Servicers, the Special Servicers and the Depositor
shall provide on a timely basis to the Certificate Administrator or its designee
such information with respect to the Trust Fund as is in its possession and
reasonably requested by the Certificate Administrator to enable it to perform
its obligations under this Section. The Certificate Administrator shall be
entitled to rely conclusively upon all such information so provided to it
without recalculation or other investigation.

            (o) The Certificate Administrator shall pay out of its own funds,
without any right of reimbursement, any and all ordinary expenses of the Trust
Fund incurred in the performance of its duties under this Section but shall be
reimbursed, except as otherwise expressly provided for herein, by the Trust Fund
for any of its extraordinary expenses, including any taxes or tax-related
payments including any expenses involved in any tax examination, audit or
proceeding.

            Section 3.31 Master Servicer and Special Servicer May Own
Certificates.

            (a) Each Master Servicer and any agent of such Master Servicer in
its individual or any other capacity may become the owner or pledgee of
Certificates with the same rights it would have if it were not a Master Servicer
or such agent, except with respect to Voting Rights, as set forth in the
definition of "Certificateholder."

            (b) Each Special Servicer and any agent of such Special Servicer in
its individual or any other capacity may become the owner or pledgee of
Certificates with the same rights it would have if it were not the Special
Servicer or such agent, except with respect to Voting Rights, as set forth in
the definition of "Certificateholder."

            Section 3.32 Certain Matters with Respect to the Loan Combinations.

            (a) Prior to taking, or permitting the Master Servicer to take, any
of the Specially Designated Servicing Actions with respect to any Loan
Combination or any related REO Property (other than any CBA A/B Loan Pair or any
related REO Property), the Special Servicer shall provide notice of its intent
to take or permit the taking of such particular action, together with all
information that the Special Servicer considers to be material in connection
with evaluating such particular action, to: (i) the Directing Certificateholder
and (ii) each of the Companion Loan Holders and the Junior Loan Holder (each
with respect to the related Loan). Subject to the last paragraph of Section
3.32(b), for 10 Business Days (or such other time as may be set forth in the
related Intercreditor Agreement) following its receipt of any notice delivered
by the Special Servicer pursuant to the prior sentence (to the extent such
period does not delay the Special Servicer from taking any action that is in the
best interests of the Certificateholders, the Companion Loan Holders and the
Junior Loan Holder (as a collective whole) prior to the expiration of such
period), the Persons referred to in clause (i) and (ii) of the prior sentence
shall be entitled to consult with, and, in certain cases, advise or direct the
Special Servicer regarding the proposed action in accordance with Section
3.32(b) regarding the proposed action in accordance with the related
Intercreditor Agreement. Upon reasonable request of any of the Persons referred
to in clauses (i) and (ii) of the second preceding sentence made within 10
Business Days following its receipt of any notice delivered by the Special
Servicer pursuant to the second preceding sentence, the Special Servicer shall
provide the requesting Person with any additional information regarding the
proposed action that is in the Special Servicer's possession or obtainable by
the Special Servicer with reasonable effort. For purposes of Section 3.32,
Directing Certificateholder shall mean, with respect to any of the Total Loans,
the related "controlling holder" or "directing holder" as defined in the related
Intercreditor Agreement, if not the same party.

            (b) Subject to the last paragraph of this Section 3.32(b), the
Special Servicer shall not take, or consent to the Master Servicer's taking, any
of the Specially Designated Servicing Actions with respect to any Loan
Combination or any related REO Property as to which the Directing
Certificateholder (or in the case of the Total Loans, in accordance with the
related Intercreditor Agreement), have objected in writing within 10 Business
Days of having been notified thereof and having been provided with all
information that such Persons have reasonably requested with respect thereto
promptly following receipt of the subject notice, all in accordance with the
related Intercreditor Agreement and Section 3.32(a) hereof; provided that, in
the event that the Special Servicer determines that immediate action (in the
case of any Loan Combination) is necessary to protect the interests of the
Certificateholders, any Companion Loan Holder and the Junior Loan Holder (as a
collective whole), the Special Servicer may take, or consent to the Master
Servicer's taking, a Specially Designated Servicing Action with respect to any
Loan Combination or any related REO Property without waiting for the response of
the Directing Certificateholder, any Companion Loan Holder or the Junior Loan
Holder.

            With respect to the matters contemplated by this Section 3.32(b) and
the corresponding provisions of the related Intercreditor Agreement, the
Directing Certificateholder is hereby designated, on behalf of the Trust Fund,
as holder of the 828-850 Madison Avenue Loan, 3434 North Washington Boulevard
Loan, 500 Sansome Office Loan and 280 Park Avenue Loan to exercise the rights of
the holder of such Loan or any successor REO Loan with respect thereto and with
respect to the 280 Park Avenue Loan to constitute part of a 280 Park Avenue
Control Group, respectively.

            Notwithstanding the foregoing, no advice, direction or objection of
any Directing Certificateholder, any Companion Loan Holder, the Junior Loan
Holder or the 280 Park Avenue Control Group contemplated by Section 3.32(a) or
this Section 3.32(b) shall (i) require or cause the Special Servicer or the
Master Servicer to violate the terms of any Loan Combination, any Intercreditor
Agreement or any other related intercreditor, co-lender or similar agreement,
applicable law or any provision of this Agreement, including the Special
Servicer's and Master Servicer's obligation to act in accordance with the
Servicing Standard and to maintain the REMIC status of each Trust REMIC, or (ii)
result in an Adverse REMIC Event with respect to any REMIC, an Adverse Grantor
Trust Event with respect to the Grantor Trust or any similar event with respect
to a comparable tax arrangement involving a Loan Combination, or (iii) expose
the Master Servicer, the Special Servicer, the Depositor, the CSMC Mortgage Loan
Seller, the Trust Fund, the Trustee or their Affiliates, officers, directors,
employees or agents to any claim, suit or liability, or (iv) materially expand
the scope of the Special Servicer's or the Master Servicer's responsibilities
under this Agreement; and the Special Servicer will neither follow any such
advice, direction or objection nor initiate any such actions.

            (c) Prior to entering into any modification of a Loan Combination,
other than any CBA A/B Loan Pair, that would materially affect the monetary
terms of the related Loan Combination, the Master Servicer or Special Servicer,
as applicable, shall provide the Directing Certificateholder, each related
Companion Loan Holder and the Junior Loan Holder with notice thereof and with
all information that the Master Servicer or Special Servicer, as applicable,
considers material, but in any case including a draft of the agreement, if any,
that sets forth such proposed modification. The Directing Certificateholder and
the related Companion Loan Holder, shall have the right to purchase the 280 Park
Avenue Loan by delivering notice to the Master Servicer or Special Servicer,
within five Business Days of receipt of the materials described in the preceding
sentence, that it intends to exercise such purchase option (such purchase option
to terminate at the end of such five-Business Day period or, with respect to the
Companion Loan Holder's purchase option, upon its receipt of notice that the
related Loan will be otherwise sold pursuant to this Agreement). In the event
that it elects to exercise such purchase option, the Directing Certificateholder
or the related Companion Loan Holder as applicable, shall deliver such Purchase
Price to the Master Servicer within three Business Days of the end of the
five-Business Day period contemplated by the preceding sentence. The purchase
option granted under this paragraph shall be in addition to the purchase option
granted pursuant to the next paragraph. In addition, consistent with the 280
Park Avenue Intercreditor Agreement, the Directing Certificateholder is hereby
designated as the Person (solely in its individual capacity, and not on behalf
of the Trust) entitled to exercise the purchase option of the holder of the 280
Park Avenue Loan with respect to the 280 Park Avenue Companion Loan under
circumstances similar to those contemplated by the first sentence of this
paragraph, and the parties hereto shall reasonably cooperate in connection with
any exercise of that purchase option.

            The related Companion Loan Holder or the Junior Loan Holder shall
have the right, by written notice to the Master Servicer and Special Servicer (a
"Purchase Notice") delivered (a "Purchase Period") (i) during any Cure Period
(as defined below) or (ii) at any time the related Loan Combination is a
Specially Serviced Loan (provided that such Loan Combination is then in default
or a default with respect thereto is reasonably foreseeable) to purchase the
related A Loan in whole but not in part at the Purchase Price. Upon the delivery
of a Purchase Notice to the Master Servicer and Special Servicer, the Special
Servicer shall, on behalf of the Trust Fund, sell (and the party exercising the
purchase option shall purchase) the related Loan at the Purchase Price, on a
date (the "Purchase Date") not less than five Business Days nor more than 10
Business Days after the date of the Purchase Notice, as shall be established by
the Special Servicer. The Purchase Price shall be calculated by the Special
Servicer, three Business Days prior to the Purchase Date and shall, absent
manifest error, be binding upon the purchasing party. The right of the Companion
Loan Holder and the Junior Loan Holder to purchase the related Loan under the
first sentence of this paragraph shall automatically terminate upon the earlier
of (a) the expiration of the applicable Purchase Period or (b) a foreclosure
sale, sale by power of sale or delivery of a deed in lieu of foreclosure with
respect to the related Mortgaged Property.

            The parties hereto acknowledge the purchase options (which such
option is only exercisable where the related Loan is in default or default
thereof is reasonably foreseeable) of the Companion Loan Holder and the
respective Junior Loan Holders (and/or their respective designees and/or
representatives) in respect of the 280 Park Avenue Loan, 828-850 Madison Avenue
Loan, the 500 Sansome Office Loan and the 3434 North Washington Boulevard Loan,
as applicable, pursuant to related Intercreditor Agreement. Upon its receipt of
any notice from a Companion Loan Holder or the Junior Loan Holder or its
designee expressing an intent to exercise any such purchase option, each party
hereto shall promptly forward a copy of such notice to the Directing
Certificateholder. In the event both the Directing Certificateholder and the
Companion Loan Holder give notice of their intent to exercise a purchase option,
the right of the Companion Loan Holder to exercise such purchase shall have
priority.

            In connection with any purchase of any Loan in a Loan Combination
pursuant to or as contemplated by this Section 3.32(c), each of the Master
Servicer and the Special Servicer shall: (i) if it receives the related Purchase
Price and/or any other amounts payable in connection with the purchase, deposit
the same in the Collection Account or the Companion Loan Custodial Account, as
applicable, and so notify the Trustee; and (ii) deliver the related Servicing
File to the Person effecting the purchase or its designee. In addition, upon its
receipt of notice that the related Purchase Price has been received and
deposited in the Collection Account, the Trustee shall: (i) deliver the Mortgage
File to the Person effecting the purchase or its designee; and (ii) execute and
deliver such endorsements, assignments and instruments of transfer as are
necessary to transfer to the Person effecting the purchase of the related Loan
and the related Loan Documents, without recourse, representations or warranties.

            (d) The Master Servicer or the Special Servicer, as applicable,
based on their respective responsibilities, shall deliver to Directing
Certificateholder and each related Junior Loan Holder notice of any monetary or
non-monetary default with respect to the related Loan Combination promptly after
a Servicing Officer of the Master Servicer or the Special Servicer, as
applicable, becomes aware of such default. Upon receipt of such notice, the
Directing Certificateholder, the Junior Loan Holder, other than with respect to
the 500 Sansome Office Junior Loan (or any designee or representative thereof
appointed pursuant to the related Intercreditor Agreement) shall have the right
to cure defaults (each such cure a "Cure Event") with respect to the related
Loan Combination, which (in the case of monetary defaults) shall include the
obligation to reimburse any related Advances with interest thereon, within five
Business Days of receipt of notice with respect to a monetary default and within
30 days of receipt of notice with respect to a non-monetary default following
the date of such notice (such period, the "Cure Period" and, any payments made
to effect any such cure, "Cure Payments"), in any event as and to the extent
permitted under, and subject to the limitations on cure and requirements imposed
by the related Intercreditor Agreement. For purposes of effecting Cure Events
with respect to the related Companion Loan, the Directing Certificateholder
shall be deemed the designee of the Trust Fund, as holder of the Loan in the
subject Loan Combination, pursuant to the related Intercreditor Agreement, but
only in its individual capacity and not on behalf of the Trust Fund.
Notwithstanding the foregoing, the making of a Cure Payment by any Person
entitled to do so shall not act as a waiver of any amounts due under the Loan
Documents by the related Borrower.

            (e) Any decisions made by the Master Servicer or Special Servicer,
as applicable, with respect to any Loan Combination pursuant to and in
accordance with the Servicing Standard and the other provisions of this
Agreement shall automatically be deemed to be reasonably exercised for purposes
of this Section 3.32 and this Agreement.

            (f) The Master Servicer and the Special Servicer each shall provide
to each Companion Loan Holder and Junior Loan Holder or its designee, with
respect to its Companion Loan or B Loan or any related REO Property, the same
reports, documents and other information that the Master Servicer or the Special
Servicer, as the case may be, provides to the Trustee with respect to the
related Loan or any related REO Property, and on a concurrent basis. The
Trustee, the Master Servicer and the Special Servicer each shall provide to each
Companion Loan Holder and the Junior Loan Holder or its designee, with respect
to its Companion Loan or any related REO Property, the same reports, documents
and other information that the Trustee, the Master Servicer or the Special
Servicer, as the case may be, provides to the Directing Certificateholder with
respect to the related Loan or any related REO Property, and on a concurrent
basis. In addition, the Trustee, the Master Servicer or the Special Servicer, as
applicable, shall, upon receipt of a written request, provide to each Companion
Loan Holder and Junior Loan Holder or its designee (at such holder's cost) all
other reports, documents and information that such holder or its designee may
reasonably request with respect to its Companion Loan or Junior Loan or any
related REO Property; provided, however, that in no event will a Junior Loan
Holder be provided with any Fair Value calculation in respect of the related A
Loan. Notwithstanding the foregoing, none of the Trustee, the Master Servicer or
the Special Servicer shall be required to deliver to any Companion Loan Holder
or the Junior Loan Holder or its designee any particular report, document or
other information pursuant to this Section 3.32(f) if and to the extent that
(but only if and to the extent that) such particular report, document or other
information is otherwise delivered to such Companion Loan Holder or such Junior
Loan Holder within the same time period contemplated by this Section 3.32(f)
pursuant to any other section of this Agreement.

            (g) Each of the rights of the respective Companion Loan Holders
under or contemplated by this Section 3.32 shall be assignable to, and/or
exercisable by, a designee thereof; provided that the Master Servicer, the
Special Servicer and the Trustee are provided with written notice by the
assignor of such assignment (upon which such party may conclusively rely) and
the contact details of the assignee.

            (h) Each of the Master Servicers and Special Servicers acknowledges
and agrees that each Junior Loan Holder and/or Companion Loan Holder may have
the right to replace the Special Servicer (with respect to the related Loan
only), in each case pursuant to the terms and conditions of the related
Intercreditor Agreement; provided, however, that in any case (i) such successor
shall meet the requirements set forth in Section 7.01(c), (ii) as evidenced in
writing by each of the Rating Agencies, the proposed replacement of the Special
Servicer shall not, in and of itself, result in a downgrading, withdrawal or
qualification of the then-current ratings provided by the Rating Agencies with
respect to any Class of then outstanding Certificates that is rated, and (iii)
the Trustee shall have received an Opinion of Counsel (which shall not be an
expense of the Trustee or the Trust) substantially to the effect that (1) the
removal of such terminated Special Servicer and/or the appointment of the Person
designated to serve as successor thereto is in compliance with this Section
3.32(h) and (2) such designated Person is duly organized, validly existing and
in good standing under the laws of the jurisdiction of its organization. Any
Special Servicer terminated pursuant to this Section 3.32(h) shall be deemed to
have been so terminated simultaneously with the designated successor's becoming
such Special Servicer hereunder; provided that (i) the terminated Special
Servicer shall be entitled to receive, in connection with its termination,
payment out of the Collection Account and, if and to the extent applicable, the
Junior Loan Custodial Account or Companion Loan Custodial Account of all of its
accrued and unpaid Special Servicing Fees in respect of the related Total Loan
and/or any related REO Property, and reimbursement from the successor to such
terminated Special Servicer of all outstanding Servicing Advances made by such
terminated Special Servicer in respect of the related Total Loan and/or any
related REO Property and all unpaid interest on Advances accrued on such
outstanding Servicing Advances (in which case the successor to such terminated
Special Servicer shall be deemed to have made such Servicing Advances at the
same time that such terminated Special Servicer had actually made them), (ii)
such terminated Special Servicer shall thereafter be entitled to any Workout
Fees in respect of the related Total Loan, as and to the extent expressly
permitted by Section 3.11(b), and (iii) such terminated Special Servicer shall
continue to be entitled to the benefits of Section 6.03, notwithstanding any
such termination; and provided, further, that such terminated Special Servicer
shall continue to be obligated to pay (and entitled to receive) all other
amounts accrued to (or owing by) it under this Agreement on or prior to the
effective date of such termination. Such terminated Special Servicer shall
cooperate with the Trustee and the replacement to such terminated Special
Servicer in effecting the transfer of such terminated Special Servicer's
responsibilities and rights hereunder to its successor, including the transfer
within two Business Days of its termination becoming effective pursuant to this
Section 3.32(h), to the replacement to such terminated Special Servicer for
administration by it of all cash amounts that at the time are or should have
been credited by such terminated Special Servicer to the REO Account or to any
Servicing Account or should have been delivered to the Master Servicer or that
are thereafter received by or on behalf of such terminated Special Servicer, in
any event with respect to the applicable Total Loan or any related REO Property.
No penalty or fee shall be payable to the Special Servicer with respect to any
termination pursuant to this Section 3.32(h). Any expenses of the Trust as a
result of any termination pursuant to this Section 3.32(h) shall be paid by the
Persons who effected such termination.

            With respect to the matters contemplated by this Section 3.32(h) and
Section 3.1.2 or Section 3.1.3 of the 280 Park Avenue Intercreditor Agreement,
the Directing Certificateholder is hereby designated, on behalf of the Trust
Fund, as holder of the 280 Park Avenue Loan, to exercise the rights of the
holder of the 280 Park Avenue Loan or any successor REO Loan with respect
thereto and to constitute part of a 280 Park Avenue Control Group.

            If the Directing Certificateholder or any Junior Loan Holder or the
Companion Loan Holder purchases a Loan in any Loan Combination pursuant to
Section 3.32(c), or if any Person purchases the related A Loan as a Defaulted
Loan pursuant to Section 3.18, then the Person effecting the purchase must also
pay and/or reimburse to the Master Servicer, the Special Servicer, the Trustee
and the Depositor the respective amounts due and owing to them hereunder with
respect to the related Companion Loans and that, pursuant to the related
Intercreditor Agreement, is includable in the purchase price.

            To the extent consistent with the Servicing Standards, nothing
herein shall be deemed to override the provisions of the Intercreditor
Agreements with respect to the rights of the Companion Holder or Junior Holders
thereunder and in the event of any inconsistency between the provisions of an
Intercreditor Agreement and the provisions of this Agreement relating to the
rights and obligations of the Trustee, as holder of the related Loan, and the
related Companion Holder or Junior Loan, the Intercreditor Agreement shall
control with respect to such Loan Combination or Total Loan.

            Section 3.33 Swap Agreement.

            (a) The Certificate Administrator is hereby authorized and directed,
both in its capacity as the Certificate Administrator and on behalf and for the
benefit of the Trust, to execute and deliver the Swap Agreement on the Closing
Date and, to perform obligations as described herein with respect to the Swap
Agreement. On or before the Closing Date, the Certificate Administrator, not in
its individual capacity but solely in its capacity as Certificate Administrator,
on behalf of the Trust, shall enter into the Swap Agreement with the Swap
Counterparty. The Certificate Administrator shall, upon receipt of the Swap
Upfront Payment on the Closing Date from the Swap Counterparty, forward such
Swap Upfront Payment to the Depositor to an account designated by the Depositor.

            (b) The Certificate Administrator shall confirm each value of LIBOR
determined by the Swap Counterparty in accordance with the terms of the Swap
Agreement promptly upon receiving written notice of such determination from the
Swap Counterparty. Absent manifest error, the Swap Counterparty's determination
of LIBOR shall be binding on the Certificate Administrator and the Class A-4FL
Certificateholders.

            (c) By 5:00 p.m. (New York time) on the Business Day prior to each
Master Servicer Remittance Date, based on the Loan Periodic Update File for the
related Due Period provided by the Master Servicer pursuant to Section 3.12(a),
the Certificate Administrator shall notify the Swap Counterparty, as calculation
agent under the Swap Agreement, in writing of (i) the Class Principal Balance of
the Class A-4FL Certificates immediately prior to the related Distribution Date,
(ii) the amount of any Yield Maintenance Charges and Static Prepayment Premiums
distributable with respect to the Class A-4FL Regular Interest for the related
Distribution Date, (iii) the amount of interest distributable with respect to
the Class A-4FL Regular Interest pursuant to Section 4.01(a)(iv) for such
Distribution Date and deposited in the Floating Rate Account and (iv) the
excess, if any, of (A) the product of (x) 1/12, (y) 5.4680% per annum and (z)
the Class Principal Balance of the Class A-4FL Certificates immediately prior to
the related Distribution Date over (B) the amount of interest distributable with
respect to the Class A-4FL Regular Interest pursuant to Section 4.01(a)(i) for
such Distribution Date and deposited in the Floating Rate Account.

            (d) Upon receiving written notice from the Swap Counterparty, as
calculation agent under the Swap Agreement, on the Business Day prior to each
Master Servicer Remittance Date of the value of Class A-4FL Fixed Swap Payment,
the Class A-4FL Floating Swap Payment, the Class A-4FL Net Fixed Swap Payment,
if any, and the Class A-4FL Net Floating Swap Payment, if any, in each case with
respect to the related Distribution Date, the Certificate Administrator shall
promptly confirm each such amount.

            (e) On the Business Day prior to each Class A-4FL Swap Payment Date,
the Certificate Administrator shall instruct the Master Servicer to remit the
Class A-4FL Net Fixed Swap Payment, if any, to the Swap Counterparty on the
Master Servicer Remittance Date, in accordance with this Agreement and the Swap
Agreement; provided that, upon and during the continuation of a Swap Default of
the nature described in clause (i) of the definition of "Swap Default" while the
Certificate Administrator is pursuing remedies under the Swap Agreement pursuant
to this Section 3.33, or following the termination of the Swap Agreement, the
Certificate Administrator shall not make such payments to the Swap Counterparty.
Promptly upon receipt of any payment or other receipt in respect of the Swap
Agreement, the Certificate Administrator shall deposit the same into the
Floating Rate Account.

            (f) The Certificate Administrator shall at all times enforce the
Trust's rights under the Swap Agreement in a commercially reasonable manner. In
the event of a Swap Default, the Certificate Administrator shall (i) provide
notice of such Swap Default on the date of such default to the Swap Counterparty
and (ii) promptly provide written notice to the Holders of the Class A-4FL
Certificates and shall be required to take such actions (following the
expiration of any applicable grace period specified in the Swap Agreement),
unless otherwise directed in writing by the Holders of Certificates representing
at least 25% of the Class Principal Balance of the Class A-4FL Certificates, to
enforce the rights of the Trust under the Swap Agreement as may be permitted by
the terms thereof, including termination thereof, and use any Swap Termination
Fees received from the Swap Counterparty to enter into a replacement interest
rate swap agreement on substantially identical terms or on such other terms
reasonably acceptable to the Certificate Administrator, with a replacement swap
counterparty, subject, in each case, to written confirmation by the Rating
Agencies that such action will not result in a qualification, downgrade or
withdrawal of the then-current ratings of the Certificates. Notwithstanding the
foregoing, the Certificate Administrator shall not be obligated to take any
enforcement action with respect to the Swap Agreement unless it receives from
the Holders of the Class A-4FL Certificates an indemnity or other assurance of
payment satisfactory to the Certificate Administrator with respect to the cost,
expenses and liabilities associated with enforcing the rights of the Trust under
the Swap Agreement, and no such costs, expenses or liabilities will be payable
out of the Trust Fund. If the costs attributable to entering into a replacement
interest rate swap agreement would exceed the amount of any Swap Termination
Fees, a replacement interest rate swap agreement shall not be entered into and
any such proceeds will instead be distributed, pro rata, to the holders of the
Class A-4FL Certificates on the immediately succeeding Distribution Date as part
of the Class A-4FL Interest Distribution Amount for such Distribution Date. If
any replacement swap counterparty pays any fee in connection with the execution
of any replacement interest rate swap agreement with the Trust, the Certificate
Administrator shall distribute such fee: first, to the Swap Counterparty in
respect of the terminated Swap Agreement, up to the amount of any termination
payment owing to the terminated Swap Counterparty under, and in connection with
the termination of, such Swap Agreement, and such fee (or applicable portion
thereof) shall be deemed to have been distributed first to the Depositor as
compensation to the Depositor under this Agreement and then from the Depositor
to the Swap Counterparty in respect of the terminated Swap Agreement, and then,
any remainder, to the Depositor.

            Any Class A-4FL Distribution Conversion shall become permanent
following the determination by the Certificate Administrator not to enter into a
replacement interest rate swap agreement and distribution of any Swap
Termination Fees to the Holders of the Class A-4FL Certificates. Any such Swap
Default (or termination of the Swap Agreement) and the consequent Class A-4FL
Distribution Conversion shall not, in and of itself, constitute an Event of
Default under this Agreement.

            Upon any change in the payment terms on the Class A-4FL
Certificates, including as a result of a Class A-4FL Distribution Conversion,
termination of a Class A-4FL Distribution Conversion, a Swap Default or the cure
of a Swap Default, the Certificate Administrator shall promptly notify the
Depository of the change in payment terms.

            (g) In the event that the Swap Agreement is terminated and no
replacement interest rate swap agreement is entered into, the Certificate
Administrator shall provide notice of such termination to the Class A-4FL
Certificateholders, which notice shall include: "The Swap Agreement with respect
to the Class A-4FL Certificates is terminated as of [date]. Certificateholders
and beneficial owners that are Plans are advised that the Underwriter Exemption
will no longer apply to the Class A-4FL Certificates, effective 60 days after
the receipt of this notice. All capitalized terms used in this notice shall have
the meaning assigned to them in the Pooling and Servicing Agreement."

            Section 3.34 Additional Matters with Respect to the Ritz Carlton
Mortgage Loan.

            (a) In the event that the applicable Mortgage Loan Seller (a
"Repurchasing Seller") with respect to the Ritz Carlton Mortgage Loan
repurchases its respective Note (a "Repurchased Note") pursuant to Section 2.03,
the provisions of this Section 3.34 shall apply, and each related Mortgage Loan
Seller has agreed in the related Mortgage Loan Purchase Agreement as follows
with respect to the servicing and administration of the Ritz Carlton Mortgage
Loan, in the event of such a repurchase unless and until such time as both
related Notes are repurchased or otherwise no longer part of the Trust, and the
related successor holders thereof have entered into a servicing agreement with
respect to such Notes. For purposes of this Section 3.34 only, "Note" shall mean
each original promissory note that collectively represents the Note (as defined
in Article I) with respect to the Ritz Carlton Mortgage Loan, and shall not be a
collective reference to such respective promissory notes.

            (b) Custody of and record title under the respective Loan Documents
with respect to the Ritz Carlton Mortgage Loan, shall be held exclusively by the
Trustee as provided under this Agreement, except that the Repurchasing Seller
shall hold and retain title to its original Repurchased Note and any related
endorsements thereof.

            (i) Payments from the related Borrower or any other amounts received
      with respect to each Note shall be collected as provided in this Agreement
      by the Master Servicer and shall be applied on each Due Date pro rata to
      each related Note based on its respective Repurchased Percentage Interest,
      subject to Section 3.34(b)(ii). Payments or any other amounts received
      with respect to the related Repurchased Note shall be held in trust for
      the benefit of the Repurchasing Seller and remitted (net of its pro rata
      share of any Master Servicing Fees, Special Servicing Fees, and any other
      amounts due to the Master Servicer, Special Servicer, Trustee or any other
      Person hereunder) to the Repurchasing Seller or its designee by the Master
      Servicer on each Distribution Date pursuant to instructions provided by
      the Repurchasing Seller and deposited and applied in accordance with this
      Agreement, subject to Section 3.34(b)(ii). In the event that the Ritz
      Carlton Mortgage Loan, becomes an REO Mortgage Loan, payments or any other
      amounts received with respect to the Ritz Carlton Mortgage Loan, shall be
      collected and shall be applied on each Due Date pro rata to each related
      Note based on its respective Repurchased Percentage Interest, subject to
      Section 3.34(b)(ii).

            (ii) In the event that the Master Servicer or the Special Servicer,
      as applicable, receives an aggregate payment of less than the aggregate
      amount due under the Ritz Carlton Mortgage Loan, at any particular time,
      the Repurchasing Seller shall be entitled to receive from the Master
      Servicer an amount equal to the Repurchasing Seller's Repurchased
      Percentage Interest of such payment. All expenses, losses and shortfalls
      relating solely to the Ritz Carlton Mortgage Loan, including, without
      limitation, losses of principal or interest, Servicing Advances that have
      been declared Nonrecoverable Advances, interest on Servicing Advances,
      Special Servicing Fees, Workout Fees and Liquidation Fees (including any
      such fees related to the related Notes), will be allocated between the
      holders of such Notes pro rata based on their respective Repurchased
      Percentage Interest of such losses and expenses. In no event shall any
      costs, expenses, fees or any other amounts related to any Loan, that do
      not affect or are not related to the Ritz Carlton Mortgage Loan, be
      deducted from payments or any other amounts received with respect to the
      Ritz Carlton Mortgage Loan, and payable to the Repurchasing Seller. For
      purposes of this Section 3.34, "Repurchased Percentage Interest" shall
      mean the 50% interest of BCRE and the 50% interest of Column in the Ritz
      Carlton Mortgage Loan.

            (iii) The Ritz Carlton Mortgage Loan shall be serviced for the
      benefit of the Repurchasing Seller and, if applicable, the
      Certificateholders pursuant to the terms and conditions of the Agreement
      in accordance with the Servicing Standard and in accordance with the
      provisions herein as if the Ritz Carlton Mortgage Loan was a Serviced
      Companion Loan. For so long as the Ritz Carlton Mortgage Loan shall be
      serviced by the Master Servicer or the Special Servicer in accordance with
      the requirements of this Agreement, the Master Servicer or the Special
      Servicer, as applicable, on behalf of the holders thereof shall administer
      the Ritz Carlton Mortgage Loan, consistent with the terms of this
      Agreement with respect to the other Loans. The Repurchasing Seller shall
      not be permitted to terminate the Master Servicer or Special Servicer as
      servicer or special servicer of the related Repurchased Note. All rights
      of the mortgagee under the Ritz Carlton Mortgage Loan will be exercised by
      the Master Servicer or Special Servicer, on behalf of the Trust Fund to
      the extent of its interest therein and on behalf of the Repurchasing
      Seller to the extent of its interest therein (as a collective whole) in
      accordance with this Agreement.

            (iv) The Ritz Carlton Mortgage Loan shall, consistent with this
      Agreement, be serviced as if it were a Loan. Each Repurchasing Seller
      shall be treated hereunder as if it were a Companion Loan Holder on a pari
      passu basis. Funds collected by the Master Servicer or the Special
      Servicer, as applicable, and applied to the Notes shall be deposited and
      disbursed in accordance with the provisions hereof relating to holders of
      Companion Loans that are pari passu in right of payment. Compensation
      shall be paid to the Master Servicer and the Special Servicer with respect
      to the related Repurchased Note as provided in this Agreement with respect
      to a Serviced Companion Loan. None of the Trustee, the Master Servicer or
      the Special Servicer shall have any obligation to make P&I Advances with
      respect to the related Repurchased Note. Except as otherwise specified
      herein, the Master Servicer and the Special Servicer shall have no
      reporting requirement with respect to the related Repurchased Note other
      than to deliver to the related Repurchased Noteholder any document
      required to be delivered to a Companion Loan Holder hereunder.

            (c) If either Note is considered a Specially Serviced Mortgage Loan,
then both Notes shall be a Specially Serviced Mortgage Loan under this
Agreement. The Special Servicer shall cause such related Repurchased Note to be
specially serviced for the benefit of the Repurchasing Seller in accordance with
the terms and provisions set forth in this Agreement and shall be entitled to
any Special Servicing Fee, Workout Fee or Liquidation Fee that would be payable
to the Special Servicer under this Agreement if the Repurchased Note were a
Serviced Companion Loan.

            (d) If (A) the Master Servicer shall pay any amount to the
Repurchasing Seller pursuant hereto in the belief or expectation that a related
payment has been made or will be received or collected in connection with either
or both of the Notes and (B) such related payment is not received or collected
by the Master Servicer, then the Repurchasing Seller will promptly on demand by
the Master Servicer return such amount to the Master Servicer. If the Master
Servicer determines at any time that any amount received or collected by the
Master Servicer in respect of the Ritz Carlton Mortgage Loan must be returned to
the related Borrower or paid to any other person or entity pursuant to any
insolvency law or otherwise, notwithstanding any other provision of this
Agreement, the Master Servicer shall not be required to distribute any portion
thereof to the Repurchasing Seller, and the Repurchasing Seller will promptly on
demand by the Master Servicer repay, which obligation shall survive the
termination of this Agreement, any portion thereof that the Master Servicer may
have distributed to the Repurchasing Seller, together with interest thereon at
such rate, if any, as the Master Servicer may pay to the related Borrower or
such other person or entity with respect thereto.

            (e) Subject to this Agreement, the Master Servicer, or the Special
Servicer, as applicable, on behalf of the holders of the Repurchased Note, shall
have the exclusive right and obligation to (i) administer, service and make all
decisions and determinations regarding the Ritz Carlton Mortgage Loan and (ii)
enforce the Ritz Carlton Mortgage Loan Documents as provided hereunder. Without
limiting the generality of the preceding sentence, the Master Servicer, or
Special Servicer, as applicable, may agree to any modification, waiver or
amendment of any term of, forgive interest on and principal of, capitalize
interest on, permit the release, addition or substitution of collateral
securing, and/or permit the release of the related Borrower on or any guarantor
of any Loan it is required to service and administer hereunder, without the
consent of the Repurchasing Seller, subject, however, to the terms of this
Agreement.

            (f) In taking or refraining from taking any action permitted
hereunder, the Master Servicer and the Special Servicer shall each be subject to
the same degree of care with respect to the administration and servicing of the
Loans as is consistent with this Agreement; and shall only be liable to the
Repurchasing Seller to the extent set forth herein with respect to any holder of
a Serviced Companion Loan.

            (g) In the event that the Trustee, the Master Servicer or the
Special Servicer has made a Servicing Advance with respect to the Ritz Carlton
Mortgage Loan which would otherwise be reimbursable to such advancing party
under this Agreement, and such Advance is determined to be a Nonrecoverable
Advance, the Repurchasing Seller shall reimburse the Trustee, Master Servicer or
the Special Servicer, as applicable, in an amount equal to its Repurchased
Percentage Interest such Nonrecoverable Advance and Advance Interest thereon.
Notwithstanding the foregoing, the Repurchasing Seller will not be obligated to
reimburse the Trustee, Master Servicer or Special Servicer (and amounts due to
the Repurchasing Seller shall not be offset) for Advances or interest thereon or
any amounts related to Loans other than the Ritz Carlton Mortgage Loan to the
extent that such Advances are not incurred for the benefit of the holders
(collectively) of the Ritz Carlton Mortgage Loan or for P&I Advances or interest
thereon with respect to the Note that is not the Repurchased Note. To the extent
that the Repurchasing Seller reimburses any such Nonrecoverable Advances and
such amounts are subsequently recovered, the Repurchasing Seller shall receive a
reimbursement from such recovery to the same extent. This reimbursement right
shall not limit the Trustee's, Master Servicer's or the Special Servicer's
rights to reimbursement under this Agreement. Notwithstanding anything to the
contrary contained herein, the total liability of the Repurchasing Seller shall
not exceed an amount equal to its Repurchased Percentage Interest of the Ritz
Carlton Mortgage Loan obligations.

            (h) The Repurchasing Seller shall have the right to assign the
related Repurchased Note; provided that the assignee of the related Repurchased
Note shall agree in writing to be bound by the terms of this Agreement.

            (i) The Master Servicer and the Special Servicer shall, in
connection with their servicing and administrative duties under this Agreement,
exercise efforts consistent with the Servicing Standard to execute and deliver,
on behalf of the Repurchasing Seller as a holder of a pari passu interest in the
Ritz Carlton Mortgage Loan any and all financing statements, continuation
statements and other documents and instruments necessary to maintain the lien
created by any Mortgage or other security document related to the Ritz Carlton
Mortgage Loan on the Mortgaged Property and related collateral, any and all
modifications, waivers, amendments or consents to or with respect to the Ritz
Carlton Mortgage Loan and any and all instruments of satisfaction or
cancellation, or of full release or discharge, and all other comparable
instruments with respect to the related Repurchased Note or related Repurchased
Notes and the Mortgaged Property or Mortgaged Properties all in accordance with,
and subject to, the terms of this Agreement. The Repurchasing Seller agrees to
furnish, or cause to be furnished, to the Master Servicer and the Special
Servicer any powers of attorney or other documents necessary or appropriate to
enable the Master Servicer or the Special Servicer, as the case may be, to carry
out its servicing and administrative duties under this Agreement related to such
Ritz Carlton Mortgage Loan; provided, however, that the Repurchasing Seller
shall not be liable, and shall be indemnified by the Master Servicer or the
Special Servicer, as applicable, for any negligence with respect to, or misuse
of, any such power of attorney by the Master Servicer or the Special Servicer,
as the case may be; and further provided that the Master Servicer or the Special
Servicer, without the written consent of the Repurchasing Seller, shall not
initiate any action in the name of the Repurchasing Seller without indicating
its representative capacity that actually causes, the Repurchasing Seller to be
registered to do business in any state.

            The Repurchasing Seller agrees to deliver to the Master Servicer or
the Special Servicer, as applicable, the Ritz Carlton Mortgage Loan Documents
related to the related Repurchased Note or related Repurchased Notes, as
applicable, any Requests for Release and any court pleadings, requests for
trustee's sale or other documents necessary to the foreclosure or trustee's sale
in respect of the Mortgaged Property or to any legal action or to enforce any
other remedies or rights provided by the Note(s) or the Mortgage(s) or otherwise
available at law or equity with respect to the related Repurchased Note.

            (j) In the event that the applicable Mortgage Loan Seller (a
"Property Purchasing Seller") with respect to the Ritz Carlton Mortgage Loan
purchases an interest in the REO Property that corresponds to the related
Property Purchasing Seller's portion thereof as provided for in Section 2.03(a)
of this Agreement, until such time as the other related Mortgage Loan Seller
purchases its corresponding interest in such REO Property, the Special Servicer
shall consult with the Property Purchasing Seller with respect to any material
decisions with regard to such REO Property and shall consider any alternative
proposal, objection or other recommendation of the Property Purchasing Seller,
but shall be entitled to reject such proposal, objection or other recommendation
in its reasonable discretion. Notwithstanding anything contained in this
paragraph (j) to the contrary, no advice, direction or objection from or by the
Property Purchasing Seller may (and the Special Servicer shall ignore and act
without regard to any such advice, direction or objection that the Special
Servicer has determined, in its reasonable, good faith judgment, would) (A)
require or cause the Special Servicer to violate the terms of the Ritz Carlton
Mortgage Loan, applicable law or any provision of this Agreement, including the
Special Servicer's obligation to act in accordance with the Servicing Standard
and to maintain the REMIC status of the Lower-Tier REMIC and the Upper-Tier
REMIC or (B) result in the imposition of a "prohibited transaction" tax or tax
on "contributions" under the REMIC Provisions.

            (k) The rights granted to the Repurchasing Seller under this Section
shall in all respects be subject to the general rights, protections and
immunities granted to the parties in this Agreement and the Directing
Certificateholder under the other sections of this Agreement and this Section
shall not be construed to limit such rights, protections and immunities.

            Section 3.35 Litigation Control

            The applicable Special Servicer, with respect to litigation
involving Specially Serviced Loans that it services (for purposes of this
Section 3.35, the "Special Servicer"), and the applicable Master Servicer, with
respect to litigation involving Performing Serviced Loans that it services (for
purposes of this Section 3.35, the "Master Servicer"), and in those instances
where the applicable servicer contemplates availing itself of indemnification as
provided for under Section 6.03 of this Agreement, such servicer (the
"Litigation Control Servicer") shall, for the benefit of the Certificateholders,
direct, manage, prosecute, defend and/or settle any and all claims and
litigation ("Litigation Control") relating to (a) the enforcement of the
obligations of a Borrower under the related loan documents and (b) any action
brought against the Trust Fund or any party to this Agreement with respect to
any Mortgage Loan. Such Litigation Control shall be carried out in accordance
with the terms of this Agreement, including, without limitation, the Servicing
Standard. Upon becoming aware of or being named in any such claims or litigation
that falls within the scope of Litigaton Control, the Litigation Control
Servicer shall notify, as soon as reasonably possible, the Directing
Certificateholder, the Paying Agent and the Trustee of such claims or
litigation. In addition, the Litigation Control Servicer shall prepare and
submit a monthly status report regarding any Litigation Control matter to the
Directing Certificateholder. The other servicer(s) (herein a "Non-Litigation
Control Servicer") shall have the right to retain its own counsel if it is named
as a party in the litigation in order to defend itself against and/or prosecute
the issues applicable in the litigation to such servicer, provided that if such
Non-Litigation Control Servicer contemplates availing itself of indemnification
as provided for under Section 6.03 of this Agreement, such Non-Litigation
Control Servicer (i) must, in the exercise of its reasonable discretion,
determine that the interests of the Trust Fund and such Non-Litigation Control
Servicer are not sufficiently aligned so as both to permit and sufficiently
motivate the Trust Fund's counsel to conduct an appropriate defense (including
pursuing counterclaims, cross-claims and/or third-party claims on behalf of the
Non-Litigation Control Servicer as potentially warranted in such servicer's
reasonable opinion) for the Non-Litigation Control Servicer, and (ii) shall
comply in all material respects with the applicable provisions of the third
paragraph of this Section 3.35.

            For purposes of implementing the Litigation Control provisions in
this Section 3.35, it is assumed by the parties to this Agreement that the
reporting servicer(s) and the Directing Certificateholder and all other
recipient(s), if any, of information and/or work product involving litigation
governed by this Agreement (including but not limited to information contained
in the above-required servicer reports or otherwise shared pursuant to this
Section 3.35), have common goals and interests in the prosecuting and defending
of the applicable litigation so that all attorney-client and other privileges
shall be preserved among the parties to this Agreement and shall not be waivable
by any one party. Any and all such waivers must have been expressly agreed-to in
writing by all parties who are, or who may become, privy to the information. All
information given by and/or shared among any parties to this Agreement or
otherwise shall be deemed as having been given or shared, if at all, subject to
all claims of applicable privilege, it being the intent of all parties hereto
that there shall be no waiver of any attorney-client or other privileges in the
course of implementing the Litigation Control or other provisions of this
Agreement.

            The Litigation Control Servicer (and any Non-Litigation Control
Servicer if it retains its own counsel) shall consult with and keep the
Directing Certificateholder advised (and all servicers who are parties to the
litigation shall cooperate with each other for the benefit of the
Certificateholders in accordance with the Servicing Standard), and shall keep
the Paying Agent and the Trustee advised, of any material development including
without limitation (i) any material decision concerning Litigation Control and
the implementation thereof (this applies to the Litigation Control Servicer
only) and (ii) any decision to agree to or propose any terms of settlement, and
shall submit any action implementing any such material development or decision
to the Directing Certificateholder for its approval or consent. Subject to the
second to last paragraph of this Section 3.35, the Special Servicer or the
Master Servicer shall not take any action implementing any such material
development or decision described in the preceding sentence unless and until it
has notified in writing the Directing Certificateholder and the Directing
Certificateholder has not objected in writing within five Business Days of
having been notified thereof and having been provided with all information that
the Directing Certificateholder has reasonably requested with respect thereto
promptly following its receipt of the subject notice (it being understood and
agreed that if such written objection has not been received by the Special
Servicer or the Master Servicer, as applicable, within such five-Business Day
period, then the Directing Certificateholder shall be deemed to have approved
the taking of such action); provided that, in the event that the Special
Servicer or the Master Servicer, as applicable, determines that immediate action
is necessary to protect the interests of the Certificateholders (as a collective
whole), the Special Servicer or the Master Servicer, as applicable, may take
such action without waiting for the response of the Directing Certificateholder;
provided that the Special Servicer or the Master Servicer, as applicable, has
reasonably determined that the Directing Certificateholder has received notice
of such action in writing.

            With respect to any Litigation Control otherwise required to be
exercised hereunder by the Master Servicer relating to a Mortgage Loan that has
either (i) been satisfied or paid in full or (ii) as to which a Final Recovery
Determination has been made, after receiving the required notice from the Master
Servicer set forth above acknowledging that it became aware of or was named in
any such claims or litigation, the Directing Certificateholder may direct in
writing that such Litigation Control nevertheless be exercised by the Special
Servicer; provided that (a) as a condition to both the giving of such direction
by the Directing Certificateholder and the accepting and conducting of such
direction by the Special Servicer, the Directing Certificateholder and the
Special Servicer each must have determined that the Special Servicer's actions
with respect to such Litigation Control obligations (including, without
limitation, settlements) (i) would be in the best interests of the
Certificateholders consistent with the Servicing Standard, (ii) shall not
require any admission of liability or wrongdoing on the part of the Master
Servicer, and it hereby is agreed that no Person shall have the authority to
make any such admission on behalf of the Master Servicer and (iii) are fully
indemnifiable (including without limitation for the benefit of the Master
Servicer as to the issues in the case applicable to the Master Servicer) under
Section 6.03 hereof and payable by the Trust; (b) all costs and fees incurred in
defending and settling the claims (including without limitation on behalf of and
for the benefit of the Master Servicer) are indemnified expenses under Section
6.03 hereof; and (c) with respect to a settlement, the Special Servicer shall
have reasonably consulted with the Master Servicer prior to such settlement.

            Notwithstanding the foregoing, no advice, direction or objection of
the Directing Certificateholder or the Special Servicer shall (i) require or
cause the Special Servicer or the Master Servicer, as applicable, to violate the
terms of any Mortgage Loan or any related intercreditor, co-lender or similar
agreement, applicable law or any provision of this Agreement, including the
Special Servicer's and the Master Servicer's obligation to act in accordance
with the Servicing Standard and to maintain the REMIC status of each of REMIC I
and REMIC II, (ii) result in an Adverse REMIC Event with respect to either of
REMIC I or REMIC II or an Adverse Grantor Trust Event with respect to the
Grantor Trust, (iii) expose the Master Servicer, the Special Servicer, the
Depositor, any of the Mortgage Loan Sellers, the Trust Fund, the Paying Agent,
the Trustee or their Affiliates, officers, directors, shareholders, partners,
members, managers, employees, attorneys or agents to any claim, suit, or
liability for which this Agreement does not provide full indemnification to such
party or expose any such party to prosecution for a criminal offense regardless
of the availability of such indemnification, or (iv) materially expand the scope
of the Special Servicer's or the Master Servicer's responsibilities under this
Agreement; and neither the Special Servicer nor the Master Servicer will follow
any such advice, direction or objection if given by the Directing
Certificateholder or Special Servicer, as applicable, or initiate any such
actions.

            Notwithstanding the foregoing, in the event (a) of any action, suit,
litigation or proceeding naming the Paying Agent in its individual capacity, or
in the event that any judgment is rendered against the Paying Agent in its
individual capacity, the Paying Agent, upon prior written notice to the
Litigation Control Servicer, may retain counsel and appear in any such
proceeding on its own behalf in order to protect and represent its interests;
provided that the Litigation Control Servicer shall retain the right to manage
and direct any such action, suit, litigation or proceeding; (b) of any action,
suit, litigation or proceeding, other than an action, suit, litigation or
proceeding relating to the enforcement of the obligations of a Borrower under
the related Mortgage Loan documents, the Litigation Control Servicer shall not,
without the prior written consent of the Paying Agent, (i) initiate any action,
suit, litigation or proceeding in the name of the Paying Agent, whether in such
capacity or individually, (ii) engage counsel to represent the Paying Agent or
(iii) prepare, execute or deliver any government filings, forms, permits,
registrations or other documents or take any other similar action with the
intent to cause, and that actually causes, the Paying Agent to be registered to
do business in any state; and (c) that any court finds that the Paying Agent is
a necessary party in respect of any action, suit, litigation or proceeding
relating to or arising from this Agreement or any Mortgage Loan, the Paying
Agent shall have the right to retain counsel and appear in any such proceeding
on its own behalf in order to protect and represent its interest, whether as the
Paying Agent or individually; provided that the Litigation Control Servicer
shall retain the right to manage and direct any such action, suit, litigation or
proceeding;

            Notwithstanding the foregoing, (a) in the event that any action,
suit, litigation or proceeding names the Trustee in its individual capacity, or
in the event that any judgment is rendered against the Trustee in its individual
capacity, the Trustee, upon prior written notice to the Litigation Control
Servicer, may retain counsel and appear in any such proceeding on its own behalf
in order to protect and represent its interests (but not to otherwise direct,
manage or prosecute such litigation or claim), (b) in the event of any action,
suit, litigation or proceeding, other than an action, suit, litigation or
proceeding relating to the enforcement of the obligations of a Borrower under
the related Mortgage Loan documents or otherwise relating to a Mortgage Loan or
Mortgaged Property, the Litigation Control Servicer shall not, without the prior
written consent of the Trustee, (i) initiate any action, suit, litigation or
proceeding in the name of the Trustee, whether in such capacity or individually,
(ii) engage counsel to represent the Trustee, or (iii) prepare, execute or
deliver any government filings, forms, permits, registrations or other documents
or take any other similar action with the intent to cause, and that actually
causes, the Trustee to be registered to do business in any state, and (c) in the
event that any court finds that the Trustee is a necessary party in respect of
any action, suit, litigation or proceeding relating to or arising from this
Agreement or any Mortgage Loan, the Trustee shall have the right to retain
counsel and appear in any such proceeding on its own behalf in order to protect
and represent its interest (but not to otherwise direct, manage or prosecute
such litigation or claim).

                                   ARTICLE IV

                         PAYMENTS TO CERTIFICATEHOLDERS

Section 4.01      Distributions.

            (a) On each Distribution Date, the Certificate Administrator shall
apply amounts on deposit in the Distribution Account for the following purposes
and in the following order of priority, in each case to the extent of the
remaining portion of the Available Distribution Amount for such Distribution
Date:

            (i) concurrently, (i) from that portion of the Available
      Distribution Amount attributable to Loan Group No. 1, to the Class A-1,
      Class A-2, Class A-AB and Class A-3 Certificates and Class A-4FL Regular
      Interest, pro rata, up to the Optimal Interest Distribution Amounts for
      each such Class for such Distribution Date, (ii) from that portion of the
      Available Distribution Amount attributable to Loan Group No. 2, to the
      Class A-1-A Certificates, up to the Optimal Interest Distribution Amount
      for such Class for such Distribution Date and (iii) from the entire
      Available Distribution Amount, to the Class A-X, Class A-SP and Class A-Y
      Certificates, pro rata, up to the Optimal Interest Distribution Amounts
      for each such Class for such Distribution Date; provided, however, that if
      the Available Distribution Amount for any Distribution Date (or the
      portion thereof attributable to any Group) is insufficient to pay in full
      the Optimal Interest Distribution Amount, as provided above, on such
      Distribution Date, then the entire Available Distribution Amount shall be
      applied to make distributions of interest to the Class A-1, Class A-2,
      Class A-AB, Class A-3, Class A-1-A, Class A-X, Class A-SP and Class A-Y
      Certificates and Class A-4FL Regular Interest of, up to, and pro rata as
      among such Classes in accordance with, the respective Optimal Interest
      Distribution Amounts in respect of such Classes of Certificates and Class
      A-4FL Regular Interest for such Distribution Date;

            (ii) to make distributions of principal to the Holders of the Class
      A-1, Class A-1-A, Class A-2, Class A-AB and Class A-3 Certificates and
      Class A-4FL Regular Interest, in reduction of the Class Principal Balances
      thereof, up to, in the aggregate, the Principal Distribution Amount for
      such Distribution Date, in the following order of priority:

            First, to the Class A-1-A Certificates, equal to the portion of the
      Principal Distribution Amount for such Distribution Date that is
      attributable to Loan Group No. 2, until the Class Principal Balance
      thereof has been reduced to zero;

            Second, to the Class A-AB Certificates, until the Class Principal
      Balance thereof has been reduced to the Class A-AB Targeted Principal
      Balance set forth for such Distribution Date on Exhibit T hereto (net of
      any portion thereof distributed on such Distribution Date to the Holders
      of the Class A-1-A Certificates pursuant to subclause first of this clause
      (ii));

            Third, to the Class A-1 Certificates, until the Class Principal
      Balance thereof has been reduced to zero (net of any portion thereof
      distributed on such Distribution Date to the Holders of the Class A-1-A
      and Class A-AB Certificates pursuant to a prior subclause of this clause
      (ii));

            Fourth, to the Class A-2 Certificates, until the Class Principal
      Balance thereof has been reduced to zero (net of any portion thereof
      distributed on such Distribution Date to the Holders of the Class A-1-A,
      Class A-AB and Class A-1 Certificates pursuant to a prior subclause of
      this clause (ii));

            Fifth, to the Class A-AB Certificates, until the Certificate Balance
      thereof has been reduced to zero (net of any portion thereof distributed
      on such Distribution Date to the Holders of the Class A-1-A, Class A-AB,
      Class A-1 and Class A-2 Certificates pursuant to a prior subclause of this
      clause (ii));

            Sixth, to the Class A-3 Certificates, until the Class Principal
      Balance thereof has been reduced to zero (net of any portion thereof
      distributed on such Distribution Date to the Holders of the Class A-1-A,
      Class A-AB, Class A-1, Class A-2 and Class A-AB Certificates pursuant to a
      prior subclause of this clause (ii));

            Seventh, to the Class A-4FL Regular Interest, until the Class
      Principal Balance thereof has been reduced to zero (net of any portion
      thereof distributed on such Distribution Date to the Holders of the Class
      A-1-A, Class A-AB, Class A-1, Class A-2, Class A-AB and Class A-3
      Certificates pursuant to a prior subclause of this clause (ii)); and

            Eighth, to the Class A-1-A Certificates, until the Class Certificate
      Balance thereof has been reduced to zero (net of any distribution of
      principal made with respect to the Class A-1-A Certificates on such
      Distribution Date pursuant to subclause first of this clause (ii), up to
      an amount equal to the entire aggregate Principal Distribution Amount for
      such Distribution Date (net of any portion thereof distributed on such
      Distribution Date to the Holders of the Class A-1-A, Class A-1, Class A-2,
      Class A-AB and Class A-3 Certificates and the Class A-4FL Regular Interest
      pursuant to a prior subclause of this clause (ii));

provided, however, that, notwithstanding the immediately preceding subclauses
First through Eighth, on each Distribution Date coinciding with or following the
Senior Principal Distribution Cross-Over Date, and in any event on the final
Distribution Date in connection with the termination of the Trust Fund,
Certificate Administrator shall make distributions of principal to the Holders
of the Class A-1, Class A-1-A, Class A-2, Class A-AB and Class A-3 Certificates
and the Class A-4FL Regular Interest, on a pro rata basis, in accordance with
the respective Class Principal Balances of those Classes outstanding immediately
prior to such Distribution Date, until the Class Principal Balance of each such
Class has been reduced to zero, up to, in the aggregate, the entire Principal
Distribution Amount for such Distribution Date;

            (iii) to reimburse the Holders of the Class A-1, Class A-1-A, Class
      A-2, Class A-AB and Class A-3 Certificates and Class A-4FL Regular
      Interest, pro rata (based on the aggregate unreimbursed amounts of
      Collateral Support Deficit previously allocated to each such Class and
      Class A-4FL Regular Interest), until all amounts of such amounts of
      Collateral Support Deficit previously allocated to such Classes, but not
      previously reimbursed, have been reimbursed in full;

            (iv) to make distributions of interest to the Holders of the Class
      A-M Certificates up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (v) to make distributions of principal to the Holders of the Class
      A-M Certificates, in reduction of the Class Principal Balance thereof, up
      to the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (vi) to reimburse the Holders of the Class A-M Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class A-M Certificates, but not previously reimbursed, have been
      reimbursed in full;

            (vii) to make distributions of interest to the Holders of the Class
      A-J Certificates up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (viii) to make distributions of principal to the Holders of the
      Class A-J Certificates, in reduction of the Class Principal Balance
      thereof, up to the Remaining Principal Distribution Amount for such Class
      for such Distribution Date, until such Class Principal Balance has been
      reduced to zero;

            (ix) to reimburse the Holders of the Class A-J Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class A-J Certificates, but not previously reimbursed, have been
      reimbursed in full;

            (x) to make distributions of interest to the Holders of the Class B
      Certificates, up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (xi) to make distributions of principal to the Holders of the Class
      B Certificates, in reduction of the Class Principal Balance thereof, up to
      the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xii) to reimburse the Holders of the Class B Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class B Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (xiii) to make distributions of interest to the Holders of the Class
      C Certificates, up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (xiv) to make distributions of principal to the Holders of the Class
      C Certificates, in reduction of the Class Principal Balance thereof, up to
      the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xv) to reimburse the Holders of the Class C Certificates, until all
      amounts of Collateral Support Deficit previously allocated to the Class C
      Certificates, but not previously reimbursed, have been reimbursed in full;

            (xvi) to make distributions of interest to the Holders of the Class
      D Certificates, up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (xvii) to make distributions of principal to the Holders of the
      Class D Certificates, in reduction of the Class Principal Balance thereof,
      up to the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xviii) to reimburse the Holders of the Class D Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class D Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (xix) to make distributions of interest to the Holders of the Class
      E Certificates, up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (xx) to make distributions of principal to the Holders of the Class
      E Certificates, in reduction of the Class Principal Balance thereof, up to
      the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xxi) to reimburse the Holders of the Class E Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class E Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (xxii) to make distributions of interest to the Holders of the Class
      F Certificates, up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (xxiii) to make distributions of principal to the Holders of the
      Class F Certificates, in reduction of the Class Principal Balance thereof,
      up to the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xxiv) to reimburse the Holders of the Class F Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class F Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (xxv) to make distributions of interest to the Holders of the Class
      G Certificates, up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (xxvi) to make distributions of principal to the Holders of the
      Class G Certificates, in reduction of the Class Principal Balance thereof,
      up to the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xxvii) to reimburse the Holders of the Class G Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class G Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (xxviii) to make distributions of interest to the Holders of the
      Class H Certificates, up to the Optimal Interest Distribution Amount for
      such Class for such Distribution Date;

            (xxix) to make distributions of principal to the Holders of the
      Class H Certificates, in reduction of the Class Principal Balance thereof,
      up to the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xxx) to reimburse the Holders of the Class H Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class H Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (xxxi) to make distributions of interest to the Holders of the Class
      J Certificates, up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (xxxii) to make distributions of principal to the Holders of the
      Class J Certificates, in reduction of the Class Principal Balance thereof,
      up to the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xxxiii) to reimburse the Holders of the Class J Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class J Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (xxxiv) to make distributions of interest to the Holders of the
      Class K Certificates, up to the Optimal Interest Distribution Amount for
      such Class for such Distribution Date;

            (xxxv) to make distributions of principal to the Holders of the
      Class K Certificates, in reduction of the Class Principal Balance thereof,
      up to the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xxxvi) to reimburse the Holders of the Class K Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class K Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (xxxvii) to make distributions of interest to the Holders of the
      Class L Certificates, up to the Optimal Interest Distribution Amount for
      such Class for such Distribution Date;

            (xxxviii) to make distributions of principal to the Holders of the
      Class L Certificates, in reduction of the Class Principal Balance thereof,
      up to the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xxxix) to reimburse the Holders of the Class L Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class L Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (xl) to make distributions of interest to the Holders of the Class M
      Certificates, up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (xli) to make distributions of principal to the Holders of the Class
      M Certificates, in reduction of the Class Principal Balance thereof, up to
      the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xlii) to reimburse the Holders of the Class M Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class M Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (xliii) to make distributions of interest to the Holders of the
      Class N Certificates, up to the Optimal Interest Distribution Amount for
      such Class for such Distribution Date;

            (xliv) to make distributions of principal to the Holders of the
      Class N Certificates, in reduction of the Class Principal Balance thereof,
      up to the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xlv) to reimburse the Holders of the Class N Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class N Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (xlvi) to make distributions of interest to the Holders of the Class
      O Certificates, up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (xlvii) to make distributions of principal to the Holders of the
      Class O Certificates, in reduction of the Class Principal Balance thereof,
      up to the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (xlviii) to reimburse the Holders of the Class O Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class O Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (xlix) to make distributions of interest to the Holders of the Class
      P Certificates, up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (l) to make distributions of principal to the Holders of the Class P
      Certificates, in reduction of the Class Principal Balance thereof, up to
      the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (li) to reimburse the Holders of the Class P Certificates, until all
      amounts of Collateral Support Deficit previously allocated to the Class P
      Certificates, but not previously reimbursed, have been reimbursed in full;

            (lii) to make distributions of interest to the Holders of the Class
      Q Certificates, up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (liii) to make distributions of principal to the Holders of the
      Class Q Certificates, in reduction of the Class Principal Balance thereof,
      up to the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (liv) to reimburse the Holders of the Class Q Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class Q Certificates, but not previously reimbursed, have been reimbursed
      in full;

            (lv) to make distributions of interest to the Holders of the Class S
      Certificates, up to the Optimal Interest Distribution Amount for such
      Class for such Distribution Date;

            (lvi) to make distributions of principal to the Holders of the Class
      S Certificates, in reduction of the Class Principal Balance thereof, up to
      the Remaining Principal Distribution Amount for such Class for such
      Distribution Date, until such Class Principal Balance has been reduced to
      zero;

            (lvii) to reimburse the Holders of the Class S Certificates, until
      all amounts of Collateral Support Deficit previously allocated to the
      Class S Certificates, but not previously reimbursed, have been reimbursed
      in full; and

            (lviii) to make distributions to the Holders of the Class R
      Certificates in respect of the Upper-Tier REMIC residual interest of any
      portion of the Available Distribution Amount for such Distribution Date,
      remaining after all other distributions pursuant to this Section 4.01(a)
      and Section 4.01(e).

            Any distributions of interest made with respect to the Class A-X or
Class A-SP Certificates on any Distribution Date pursuant to clause (i) of the
prior paragraph of this Section 4.01(a) shall be deemed allocated among the
respective Components of such Class of Certificates on a pro rata basis in
accordance with the respective Optimal Interest Distribution Amounts of such
Components for such Distribution Date.

            All distributions made in respect of each Class of Sequential Pay
Certificates (other than the Class A-4FL Certificates) and the Class A-4FL
Regular Interest on each Distribution Date pursuant to the foregoing provisions
of this Section 4.01(a) shall be deemed to have first been distributed from the
Lower-Tier REMIC to the Upper-Tier REMIC with respect to the Corresponding
Uncertificated Lower-Tier Interest(s) for such Class of Certificates (other than
the Class A-4FL Certificates) and the Class A-4FL Regular Interest; all
distributions made with respect to the Class A-X or Class A-SP Certificates on
each Distribution Date pursuant to the foregoing provisions of this Section
4.01(a) and allocable to any particular Component of such Class of Interest-Only
Certificates, shall be deemed to have first been distributed from the Lower-Tier
REMIC to the Upper-Tier REMIC in respect of the Corresponding Uncertificated
Lower-Tier Interest for such Component; and all distributions made with respect
to the Class A-Y Certificates on each Distribution Date pursuant to the
foregoing provisions of this Section 4.01(a) shall be deemed to have first been
distributed from the Lower-Tier REMIC to the Upper-Tier REMIC in respect of the
Class LA-Y Lower-Tier Interest. In each case, if such distribution on any such
Class of Certificates or Class A-4FL Regular Interest was a distribution of
accrued interest, of principal or in reimbursement of any Collateral Support
Deficit previously allocated to such Class of Certificates or Class A-4FL
Regular Interest, then the corresponding distribution deemed to be made on an
Uncertificated Lower-Tier Interest pursuant to the preceding sentence (and, if
applicable, the following paragraph of this Section 4.01(a)) shall be deemed to
also be, respectively, a distribution of accrued interest, of principal or in
reimbursement of any Collateral Support Deficit previously allocated to the
Upper-Tier REMIC in respect of such Uncertificated Lower-Tier Interest.

            If a Class of Sequential Pay Certificates has two or more
Corresponding Uncertificated Lower-Tier Interests, then:

            (i) deemed distributions of accrued interest made on such
      Corresponding Uncertificated Lower-Tier Interests on any Distribution Date
      shall be allocated between or among them, as applicable, on a pro rata
      basis in accordance with the respective Optimal Interest Distribution
      Amounts in respect of such Corresponding Uncertificated Lower-Tier
      Interests for such Distribution Date;

            (ii) deemed distributions of principal made on such Corresponding
      Uncertificated Lower-Tier Interests on any Distribution Date shall be
      allocated to them in numeric order (i.e., from lowest number to highest
      number) of the respective ending numbers of the respective alphanumeric
      designations for such Corresponding Uncertificated Lower-Tier Interests,
      in each case up to an amount equal to the Lower-Tier Principal Amount of
      the subject Corresponding Uncertificated Lower-Tier Interest outstanding
      immediately prior to such Distribution Date (such that no deemed
      distributions of principal will be made on any such Corresponding
      Uncertificated Lower-Tier Interest until the Lower-Tier Principal Amount
      of each other such Corresponding Uncertificated Lower-Tier Interest, if
      any, with an alphanumeric designation that ends in a lower number, has
      been paid in full); and

            (1) deemed distributions made on such Corresponding Uncertificated
      Lower-Tier Interests on any Distribution Date in reimbursement of
      Collateral Support Deficits previously allocated to the Upper-Tier REMIC
      with respect thereto shall be allocated between or among them, as
      applicable, on a pro rata basis in accordance with the respective
      aggregate unreimbursed amounts of Collateral Support Deficits previously
      allocated to the Upper-Tier REMIC with respect to such Corresponding
      Uncertificated Lower-Tier Interests.

            (b) On each Distribution Date, the Certificate Administrator shall
withdraw any amounts on deposit in the Distribution Account that represent Yield
Maintenance Charges actually collected on Loans and/or REO Loans in the Mortgage
Pool during the related Due Period and shall distribute each such Yield
Maintenance Charge as follows:

            (i) a portion of such Yield Maintenance Charge shall be distributed
      to the Holders of the Class A-1, Class A-1-A, Class A-2, Class A-AB, Class
      A-3, Class A-M, Class A-J, Class B, Class C, Class D, Class E, Class F,
      Class G, Class H, Class J and Class K Certificates and Class A-4FL Regular
      Interest, respectively, in an amount that shall, as to each such Class,
      equal the product of (A) a fraction whose numerator is the amount
      distributed as principal with respect to such Class on such Distribution
      Date, and whose denominator is the Principal Distribution Amount for such
      Distribution Date, (B) the Base Interest Fraction for the related
      Principal Prepayment or other related early collection of principal and
      such Class of Certificates and (C) the entire amount of such Yield
      Maintenance Charge (net of any Liquidation Fee payable therefrom); and

            (ii) the entire remaining portion of such Yield Maintenance Charge
      (net of any Liquidation Fee payable therefrom) shall be paid to the
      Holders of the Class A-X Certificates;

provided, however, that, if the subject Yield Maintenance Charge was collected
in respect of a Specially Designated Co-op Loan or any successor REO Loan with
respect thereto, then such Yield Maintenance Charge shall be distributed as
follows (on a pro rata basis): (i) the amount distributable in accordance with
clauses (i) and (ii) of this sentence shall equal the amount of the Yield
Maintenance Charge that would have been payable with respect to such Co-op Loan
or any successor REO Loan with respect thereto if the related Mortgage Rate was
equal to the related Net Mortgage Rate minus 0.10% per annum and without regard
to any Yield Maintenance Minimum Amount and (ii) the remaining portion of such
Yield Maintenance Charge that would have been payable with respect to such Co-op
Loan or any successor REO Loan with respect thereto shall be distributed to the
Holders of the Class A-Y Certificates, in each such case net of a proportionate
share of any Liquidation Fee payable from such Yield Maintenance Charge.

            (iii) On each Distribution Date, the Certificate Administrator shall
      withdraw any amounts on deposit in the Distribution Account that represent
      Static Prepayment Premiums actually collected on Loans and/or REO Loans in
      the Mortgage Pool during the related Due Period and shall distribute each
      such Static Prepayment Premium as follows:

            (iv) a portion of such Static Prepayment Premium shall be
      distributed to the Holders of the Class A-1, Class A-1-A, Class A-2, Class
      A-AB, Class A-3, Class A-M, Class A-J, Class B, Class C, Class D, Class E,
      Class F, Class G, Class H, Class J and Class K Certificates and Class
      A-4FL Regular Interest, in an amount that shall, as to each such Class,
      equal the product of (A) a fraction whose numerator is the amount
      distributed as principal with respect to such Class on such Distribution
      Date, and whose denominator is the Principal Distribution Amount for such
      Distribution Date, (B) the Base Interest Fraction for the related
      Principal Prepayment or other related early collection of principal and
      such Class of Certificates and (C) the entire amount of such Static
      Prepayment Premium (exclusive of any Liquidation Fee payable therefrom);
      and

            (v) the entire remaining portion of such Static Prepayment Premium
      (exclusive of any Liquidation Fee payable therefrom) shall be distributed
      to the Class A-X Certificates;

provided, however, that, if such Static Prepayment Premium was collected with
respect to a Specially Designated Co-op Loan or any successor REO Loan with
respect thereto, then only 50% of such Static Prepayment Premium actually
collected shall be distributable pursuant to clauses (i) and (ii) of this
sentence, and the other 50% of such Static Prepayment Premium shall be
distributed to the Holders of the Class A-Y Certificates, in each case net of a
proportionate share of any Liquidation Fee payable from such Static Prepayment
Premium.

            All distributions of Static Prepayment Premiums and/or Yield
Maintenance Charges made on any Distribution Date in respect of a Class of
Sequential Pay Certificates (other than the Class A-4FL Certificates) and the
Class A-4FL Regular Interest shall be deemed to have first been distributed from
the Lower-Tier REMIC to the Upper-Tier REMIC with respect to the Corresponding
Uncertificated Lower-Tier Interest; all distributions of Static Prepayment
Premiums and/or Yield Maintenance Charges made on any Distribution Date in
respect of a Class of Sequential Pay Certificates (other than the Class A-4FL
Certificates) and the Class A-4FL Regular Interest with two or more
Corresponding Uncertificated Lower-Tier Interests shall be deemed to have first
been distributed from the Lower-Tier REMIC to the Upper-Tier REMIC with respect
to such Corresponding Uncertificated Lower-Tier Interests, on a pro rata basis
in accordance with the respective amounts of deemed distributions of principal
made with respect to such Corresponding Uncertificated Lower-Tier Interests on
such Distribution Date pursuant to Section 4.01(a); all distributions of Static
Prepayment Premiums and/or Yield Maintenance Charges made on any Distribution
Date in respect of the Class A-X or Class A-SP Certificates and allocable to any
particular Component of such Class of Certificates or the Class A-4FL Regular
Interest, shall be deemed to have first been distributed from the Lower-Tier
REMIC to the Upper-Tier REMIC with respect to such Component's Corresponding
Uncertificated Lower-Tier Interest; and all distributions of Static Prepayment
Premiums and/or Yield Maintenance Charges made on any Distribution Date in
respect of the Class A-Y Certificates shall be deemed to have first been
distributed from the Lower-Tier REMIC to the Upper-Tier REMIC with respect to
the Class LA-Y Lower-Tier Interest.

            (c) On any applicable Distribution Date, (i) any Excess Interest
collected and (ii) any amounts receivable in respect of the 828-850 Madison
Avenue Loan REMIC Residual Interest during the related Due Period shall be
distributed from the Grantor Trust Distribution Account to the Holders of the
Class V Certificates and the Holders of the Class R Certificates, respectively.

            (d) All distributions made with respect to each Class on each
Distribution Date shall be allocated pro rata among the outstanding Certificates
in such Class based on their respective Percentage Interests. Except as
otherwise specifically provided in Sections 4.01(e), 4.01(f) and 9.01, all such
distributions with respect to each Class on each Distribution Date shall be made
to the Certificateholders of record of the respective Class at the close of
business on the related Record Date and shall be made by wire transfer of
immediately available funds to the account of any such Certificateholder at a
bank or other entity having appropriate facilities therefor, if such
Certificateholder shall have provided the Certificate Administrator with written
wiring instructions on or prior to the related Record Date (which wiring
instructions may be in the form of a standing order applicable to all subsequent
Distribution Dates) or otherwise by check mailed to the address of such
Certificateholder as it appears in the Certificate Register. The final
distribution on each Certificate (determined without regard to any possible
future reimbursement of Collateral Support Deficit previously allocated to such
Certificate) shall be made in like manner, but only upon presentation and
surrender of such Certificate at the offices of the Certificate Administrator or
such other location specified in the notice to Certificateholders of such final
distribution.

            Each distribution with respect to a Book-Entry Certificate shall be
paid to the Depository, as Holder thereof, and the Depository shall be
responsible for crediting the amount of such distribution to the accounts of its
Depository Participants in accordance with its normal procedures. Each
Depository Participant shall be responsible for disbursing such distribution to
the Certificate Owners that it represents and to each indirect participating
brokerage firm (a "brokerage firm" or "indirect participating firm") for which
it acts as agent. Each brokerage firm shall be responsible for disbursing funds
to the Certificate Owners that it represents. None of the Trustee, the
Certificate Administrator, the Depositor, the Master Servicers, the Special
Servicers, the Underwriters or the Initial Purchasers shall have any
responsibility therefor except as otherwise provided by this Agreement or
applicable law.

            (e) Except as otherwise provided in Section 9.01, whenever the
Certificate Administrator expects that the final distribution with respect to
any Class of Certificates (determined without regard to any possible future
reimbursement of any amount of Collateral Support Deficit previously allocated
to such Class of Certificates) will be made on the next Distribution Date, the
Certificate Administrator shall, 30 days prior to the final Distribution Date
for such Class, post a notice on the Website to the effect that no interest
shall accrue on such Certificates from and after the end of the Interest Accrual
Period for such Distribution Date.

            Any funds not distributed to any Holder or Holders of Certificates
of any Class on such Distribution Date because of the failure of such Holder or
Holders to tender their Certificates shall, on such date, be set aside and held
uninvested in trust and credited to the account or accounts of the appropriate
non-tendering Holder or Holders. If any Certificates as to which notice has been
given pursuant to this Section 4.01(e) shall not have been surrendered for
cancellation within six months after the time specified in such notice, the
Certificate Administrator shall mail a second notice to the remaining
non-tendering Certificateholders to surrender their Certificates for
cancellation in order to receive the final distribution with respect thereto. If
within one year after the second notice all such Definitive Certificates shall
not have been surrendered for cancellation, the Certificate Administrator,
directly or through an agent, shall take such steps to contact the remaining
non-tendering Definitive Certificateholders concerning the surrender of their
Certificates as it shall deem appropriate. The costs and expenses of holding
such funds in trust and of contacting such Certificateholders following the
first anniversary of the delivery of such second notice to the non-tendering
Certificateholders shall be paid out of such funds. No interest shall accrue or
be payable to any Certificateholder on any amount held in trust hereunder by the
Certificate Administrator as a result of such Certificateholder's failure to
surrender its Certificate(s) for final payment thereof in accordance with this
Section 4.01(e).

            (f) Distributions in reimbursement of Collateral Support Deficit
previously allocated to the Sequential Pay Certificates shall be made in the
amounts and manner specified in Section 4.01(a) to the Holders of the respective
Class otherwise entitled to distributions of interest and principal on such
Class on the relevant Distribution Date; provided, however, that all
distributions in reimbursement of Collateral Support Deficit previously
allocated to a Class of Sequential Pay Certificates which has since been retired
shall be to the prior Holders that surrendered the Certificates of such Class
upon retirement thereof and shall be made by check mailed to the address of each
such prior Holder last shown in the Certificate Register. Notice of any such
distribution to a prior Holder shall be made in accordance with Section 10.05 at
such last address. The amount of the distribution to each such prior Holder
shall be based upon the aggregate Percentage Interest evidenced by the
Certificates surrendered thereby. If the check mailed to any such prior Holder
is returned uncashed, then the amount thereof shall be set aside and held
uninvested in trust for the benefit of such prior Holder, and the Certificate
Administrator shall attempt to contact such prior Holder in the manner
contemplated by Section 4.01(e) as if such Holder had failed to surrender its
Certificates.

            Notwithstanding anything in this Agreement to the contrary, all
distributions allocable to the Class A-4FL Regular Interest shall be deposited
into the Floating Rate Account pending distribution thereof to the Class A-4FL
Certificateholders and/or with respect to interest distributions, the Swap
Counterparty. In addition, for so long as the Swap Agreement remains in effect,
amounts described in this Agreement as being distributable on or allocable to
the Class A-4FL Regular Interest with respect to any Distribution Date
(including distributions of Yield Maintenance Charges and Static Prepayment
Premiums) shall be determined (taking into account all of the applicable payment
priorities and the then known available funds) as of, and will be withdrawn from
the Distribution Account and transferred to the Floating Rate Account on, the
Class A-4FL Swap Payment Date preceding such Distribution Date.

            (g) Subject to Section 3.33, on each Distribution Date, the
Certificate Administrator shall apply amounts on deposit in the Floating Rate
Account for the following purposes and in the following order of priority, in
each case to the extent of the Class A-4FL Available Funds (exclusive of any
portion thereof that constitutes Yield Maintenance Charges and Static Prepayment
Premiums) for such Distribution Date:

            (i) to make distributions of interest to the Holders of the Class
      A-4FL Certificates, up to the Class A-4FL Interest Distribution Amount for
      such Distribution Date;

            (ii) to make distributions of principal to the Holders of the Class
      A-4FL Certificates, in reduction of the Class Principal Balance thereof,
      up to the Class A-4FL Principal Distribution Amount for such Distribution
      Date, until such Class Principal Balance has been reduced to zero;

            (iii) to reimburse the Holders of the Class A-4FL Certificates,
      until all amounts of Collateral Support Deficit previously allocated to
      the Class A-4FL Certificates, but not previously reimbursed, have been
      reimbursed in full; and

            (iv) to the Holders of the Class A-4FL Certificates, any remaining
      amount.

            (h) For so long as the Swap Agreement is in effect and there is no
continuing payment default thereunder on the part of the Swap Counterparty, all
Yield Maintenance Charges and Static Prepayment Premiums allocable to the Class
A-4FL Regular Interest shall be payable to the Swap Counterparty pursuant to the
terms of the Swap Agreement. However, during the occurrence of a payment default
on the part of the Swap Counterparty under the Swap Agreement or if the Swap
Agreement is terminated and a replacement Swap Agreement is not obtained, then
all Yield Maintenance Charges and Static Prepayment Premiums distributed to the
Floating Rate Account with respect to the Class A-4FL Regular Interest shall be
distributed by the Certificate Administrator to the Holders of the Class A-4FL
Certificates on the subject Distribution Date.

            (i) Any termination payments due to the Swap Counterparty under the
Swap Agreement shall be payable solely, as contemplated by Section 3.33, out of
any upfront payment made by a replacement swap counterparty and otherwise
payable to the Depositor.

            (j) All payments made on the 828-850 Madison Avenue Loan or
subsequently acquired REO Property, other than amounts distributable in respect
of the 828-850 Madison Avenue Loan REMIC Residual Interest owned by the 828-850
Madison Avenue Loan REMIC shall be deemed to be distributed from the 828-850
Madison Avenue Loan REMIC to the Lower-Tier REMIC as holder of the 828-850
Madison Avenue Loan REMIC Regular Interest before distributions are deemed made
to the holders of the Uncertificated Lower-Tier Interests pursuant to Sections
4.01(a) or 4.01(b), and shall be treated as principal, interest, Prepayment
Premium or Yield Maintenance Charges, as the case may be, based on these
characterizations with respect to the 828-850 Madison Avenue Loan (or related
REO Property), except where expressly noted any payment of principal on or
reduction in the Stated Principal Balance of the 828-850 Madison Avenue Loan
shall reduce the principal balance of the 828-850 Madison Avenue Loan REMIC
Regular Interest. Any payments on or with respect to the 828-850 Madison Avenue
Loan in excess of the principal, interest, Prepayment Premium or Yield
Maintenance Charges distributable on the 828-850 Madison Avenue Loan REMIC
Regular Interest shall be distributable from the Grantor Trust Distribution
Account to the Class R Certificates in respect of the 828-850 Madison Avenue
Loan REMIC Residual Interest. Servicing Fees, Primary Servicing Fees and Trustee
Fees in respect of the 828-850 Madison Avenue shall be deemed paid to the
Lower-Tier REMIC in respect of the 828-850 Madison Avenue Loan REMIC Regular
Interest and all other servicing compensation with respect to the 828-850
Madison Avenue Loan shall be deemed to be paid by the 828-850 Madison Avenue
Loan REMIC.

            Section 4.02 Statements to Certificateholders; Reports by Trustee;
Other Information Available to the Holders and Others.

            (a) On each Distribution Date, based solely upon the information
regarding the Loans delivered to the Certificate Administrator by the Master
Servicers, the Certificate Administrator shall prepare and make available, and,
upon request, forward, to any Privileged Person, Bloomberg, L.P., the Trepp
Group, Charter Research Corporation and Intex Solutions, a statement
substantially in the form of and containing the information set forth in,
Exhibit E hereto (the "Certificate Administrator Report"), detailing the
distributions on such Distribution Date and the performance, both in the
aggregate and individually to the extent available, of the Loans and the
Mortgaged Properties; provided that the Certificate Administrator need not
deliver to any Privileged Person any Certificate Administrator Report that has
been made available to such Person via the Certificate Administrator's internet
website as provided below; and provided, further, that the Certificate
Administrator has no affirmative obligation to discover the identities of
Certificate Owners and need only react to Persons claiming to be Certificate
Owners in accordance with Section 5.06; and provided, further, that during any
period that reports are required to be filed with the Commission with respect to
the Trust pursuant to Section 15(d) of the Exchange Act, each recipient of the
Certificate Administrator Report shall be deemed to have agreed to keep
confidential the information therein until such Statement to Certificateholders
is filed with the Commission.

            On each Distribution Date, the Certificate Administrator shall
provide or make available electronically (or, upon request, by first class mail)
to each Privileged Person each file and report comprising the CMSA Investor
Reporting Package and any other report at the direction of the Depositor, to the
extent received by the Trustee since the prior Distribution Date (or, in the
case of the initial Distribution Date, since the Closing Date); provided that
during any period that reports are required to be filed with the Commission with
respect to the Trust pursuant to Section 15(d) of the Exchange Act, each
recipient of such files and reports shall be deemed to have agreed to keep
confidential the information in any such file or report until such particular
file or report is filed with the Commission.

            The Certificate Administrator shall have no obligation to provide
the information or reports described in this Section 4.02(a) until it has
received the requisite information or reports from the Master Servicers provided
for herein, and the Certificate Administrator shall not be in default hereunder
due to a delay in providing the Certificateholder Reports caused by a Master
Servicer's or Special Servicer's failure to timely deliver any information or
reports hereunder. None of the Master Servicers, the Special Servicers or the
Certificate Administrator shall be responsible for the accuracy or completeness
of any information supplied to it by a Borrower, each other or a third party,
and accepted by it in good faith, that is included in any reports, statements,
materials or information prepared or provided by such Master Servicer, such
Special Servicer or the Certificate Administrator, as applicable. None of the
Certificate Administrator, the Master Servicers or the Special Servicers shall
have any obligation to verify the accuracy or completeness of any information
provided by a Borrower, a third party or each other.

            The Certificate Administrator shall make available each month, to
the general public, the related Certificate Administrator Report via its
internet website initially located at "www.etrustee.net." In addition, the
Certificate Administrator shall make available each month, via its internet
website on a restricted basis solely to Privileged Persons, (i) the Unrestricted
Master Servicer Reports, (ii) the CMSA Bond Level File, CMSA Loan Periodic
Update File, CMSA Loan Setup File and the CMSA Collateral Summary File, (iii)
any other report at the direction of the Depositor and (iv) as a convenience to
the general public (and not in furtherance of the distribution thereof under the
securities laws), the Prospectus and this Agreement. Upon notification by the
Depositor that the Initial Purchaser has sold the Non-Registered Certificates to
unaffiliated third parties, the Certificate Administrator shall remove the
restriction provided for in the preceding sentence and shall make such reports
and documents available to the general public. The Certificate Administrator
shall also make available each month, on a restricted basis to any Privileged
Person via its internet website, (i) the Restricted Master Servicer Reports, and
(ii) any other report at the direction of the Depositor. During any period that
reports are required to be filed with the Commission with respect to the Trust
pursuant to Section 15(d) of the Exchange Act, each recipient of such files and
reports shall be deemed to have agreed to keep confidential any such information
that has not been filed with the Commission.

            The Certificate Administrator makes no representations or warranties
as to the accuracy or completeness of any report, document or other information
made available on its internet website and assumes no responsibility therefor.
In addition, the Certificate Administrator may disclaim responsibility for any
information distributed by the Certificate Administrator for which it is not the
original source.

            In connection with providing access to the Certificate
Administrator's internet website, the Certificate Administrator may require
registration and the acceptance of a disclaimer. The Certificate Administrator
shall not be liable for the dissemination of information in accordance herewith.
Questions regarding the Certificate Administrator's internet website can be
directed to the Certificate Administrator's CMBS customer service desk at (312)
904-5444 or such other number as the Certificate Administrator may hereinafter
specify.

            The Certificate Administrator shall be entitled to rely on but shall
not be responsible for the content or accuracy of any information provided by
third parties for purposes of preparing the Statement to Certificateholders and
may affix thereto any disclaimer it deems appropriate in its reasonable
discretion (without suggesting liability on the part of any other party hereto).

            Within a reasonable period of time after the end of each calendar
year, upon request, the Certificate Administrator shall make available, and,
upon written request, send to each Person who at any time during the calendar
year was a Certificateholder of record, a report summarizing on an annual basis
(if appropriate) the items set forth on page 2 to Exhibit E hereto and such
other information as may be required to enable such Certificateholder to prepare
its federal income tax returns. Such information shall include the amount of
original issue discount accrued on each Class of Certificates held by Persons
other than Holders exempted from the reporting requirements and information
regarding the expenses of the Trust. Such requirement shall be deemed to be
satisfied to the extent such information is provided pursuant to applicable
requirements of the Code from time to time in force.

            (b) No less often than on a monthly basis, each Master Servicer and
Special Servicer shall, without charge, make a knowledgeable Servicing Officer
available to answer questions from the Directing Certificateholder regarding the
performance and servicing of the Loans and/or REO Properties for which such
Master Servicer or Special Servicer, as the case may be, is responsible. Each
Master Servicer and Special Servicer shall condition such disclosure upon the
Directing Certificateholder entering into a reasonable and customary
confidentiality agreement reasonably acceptable to such servicer regarding such
disclosure to it.

            No Master Servicer or Special Servicer shall be required to confirm,
represent or warrant the accuracy or completeness of any other Person's
information or report included in any communication from such Master Servicer or
Special Servicer under this Agreement.

            (c) No Master Servicer or Special Servicer shall be required to
conduct research or obtain information that is not available to such Master
Servicer or Special Servicer, as the case may be, in the ordinary course of its
servicing activities hereunder. In addition, no Master Servicer or Special
Servicer shall be required to (i) answer commercially unreasonable questions,
(ii) answer questions relating to matters that extend beyond the scope of its
duties as a Master Servicer or Special Servicer, as applicable, (iii) answer
questions that would, in such Master Servicer's or Special Servicer's sole
discretion, require such Master Servicer or Special Servicer, as the case may
be, to devote an unreasonable amount of time or resources to answer, (iv)
disclose information that would violate the terms of any of the Loan Documents
or applicable law or initiate contact with Borrowers or third parties except in
connection with the ordinary course of its servicing duties hereunder or (v)
express opinions or make recommendations under this Section 4.02(c) (it being
understood that each Master Servicer and Special Servicer may limit its
responses to factual matters). Provision of information pursuant to this Section
4.02(c) by a Master Servicer or Special Servicer shall be subject to Sections
3.26(i) and 3.26(k).

            Section 4.03 P&I Advances.

            (a) On or before 1:00 p.m. New York City time on each Master
Servicer Remittance Date, each Master Servicer shall (i) remit to the
Certificate Administrator for deposit into the Distribution Account from its own
funds an amount equal to the aggregate amount of P&I Advances, if any, to be
made in respect of the related Distribution Date, (ii) apply amounts held in
such Master Servicer's Collection Account that are not required to be part of
the Available Distribution Amount for such Distribution Date or (iii) make P&I
Advances in the form of any combination of (i) and (ii) aggregating the total
amount of P&I Advances to be made by such Master Servicer. Any amounts held in
any Master Servicer's Collection Account not required to be a part of the
Available Distribution Amount for such Distribution Date and so used to make P&I
Advances shall be appropriately reflected in such Master Servicer's records and
replaced by such Master Servicer by deposit in such Collection Account on or
before the next succeeding P&I Advance Determination Date (to the extent not
previously replaced through the deposit of Late Collections of the delinquent
principal and/or interest in respect of which such P&I Advances were made). To
the extent that a Master Servicer fails to make a P&I Advance required to be
made by such Master Servicer hereunder on the Distribution Date (other than a
P&I Advance that such Master Servicer or the Trustee determines is a
Nonrecoverable Advance), the Trustee shall make such P&I Advance unless the
Trustee determines that any such P&I Advance, if made, would be a Nonrecoverable
Advance. To the extent the Trustee is required hereunder to make P&I Advances on
the Mortgage Pool, it shall deposit the amount thereof in the Distribution
Account on or before 11:00 a.m. New York City time on the related Distribution
Date.

            (b) Subject to Sections 4.03(c) and (e) below, the aggregate amount
of P&I Advances to be made by a Master Servicer with respect to any Distribution
Date shall equal the aggregate of: (i) with respect to the Loans as to which
such Master Servicer is the applicable Master Servicer, all Monthly Payments (in
each case, net of related Primary Servicing Fees and Master Servicing Fees, if
any), other than Balloon Payments, that were due on such Loans during any
related Due Period and delinquent as of the close of business on the
Determination Date preceding the related Master Servicer Remittance Date; and
(ii) with respect to each Loan as to which such Master Servicer is the
applicable Master Servicer and as to which the related Balloon Payment was due
during or prior to the related Due Period and was delinquent as of the end of
the related Due Period, and also with respect to each successor REO Loan with
respect to a Loan as to which such Master Servicer was the applicable Master
Servicer, any uncollected portion of the Assumed Scheduled Payment (in each
case, net of related Primary Servicing Fees and Master Servicing Fees, if any)
deemed due thereon during the related Due Period. All P&I Advances for any Loans
that have been modified shall be calculated on the basis of their terms as
modified. Subject to subsection (c) and (e) below, the obligation of each Master
Servicer to make such P&I Advances is mandatory and, with respect to any Loan or
REO Loan, shall continue until the Distribution Date on which the proceeds, if
any, received in connection with a Liquidation Event with respect thereto are to
be distributed. None of the Master Servicers or the Trustee shall be required or
permitted to make P&I Advances as to any Companion Loan or Junior Loan.

            (c) Notwithstanding anything herein to the contrary, neither a
Master Servicer nor the Trustee shall be required to make a P&I Advance, if such
Master Servicer or the Trustee determines, in accordance with the definition
thereof, that any such P&I Advance would be a Nonrecoverable Advance. The
Trustee may conclusively rely on any determination of nonrecoverability by the
applicable Master Servicer. No Special Servicer shall be required to make P&I
Advances under this Agreement. On each Determination Date, the applicable
Special Servicer shall report to the applicable Master Servicer such Special
Servicer's determination as to whether any P&I Advance made with respect to any
previous Distribution Date or required to be made with respect to such
Distribution Date with respect to any Specially Serviced Loan or REO Loan is a
Nonrecoverable P&I Advance. The applicable Master Servicer and the Trustee shall
conclusively rely on and be bound by the applicable Special Servicer's
determination that a P&I Advance is a Nonrecoverable P&I Advance, provided,
however, that in the absence of such determination by the applicable Special
Servicer, the applicable Master Servicer and the Trustee will be entitled to
make their own determination that a P&I Advance is a Nonrecoverable P&I Advance,
and in no event shall a determination by the applicable Special Servicer that a
previously made or proposed P&I Advance would be recoverable be binding on the
applicable Master Servicer or Trustee. Any determination made by the Master
Servicer or any master servicer of any 280 Park Avenue Companion Loan (upon the
securitization of such loan if the securities issued in connection therewith are
rated by any Rating Agency) regarding the nonrecoverability of any P&I Advance
with respect to any portion of the related Total Loan will be binding on the
Trust Fund and the trust fund or trust funds, as the case may be, containing the
related Companion Loan.

            (d) In connection with the recovery of any P&I Advance out of any
Collection Account pursuant to Section 3.05(a), or out of the Distribution
Account pursuant to Section 3.05(b), the Master Servicer or other party (which
may include the Trustee) that made such P&I Advance shall be entitled to
receive, out of any amounts then on deposit in such Collection Account or
Distribution Account (subject to any limitations pursuant to Section 1.05 and/or
Section 3.05), interest at the Reimbursement Rate in effect from time to time,
accrued on the amount of such P&I Advance from the date made to but not
including the date of reimbursement; provided that such interest shall not
accrue on any P&I Advance made in respect of a delinquent Monthly Payment until
after the expiration of any applicable grace period relating thereto. Subject to
Section 3.19(e), a Master Servicer shall reimburse itself or the Trustee, as the
case may be, for any outstanding P&I Advance made in respect of any Loan for
which such Master Servicer is the applicable Master Servicer (or in respect of
any successor REO Loan with respect thereto), as soon as practicably possible
after funds available for such purpose are deposited in such Master Servicer's
Collection Account. In no event shall interest accrue in accordance with this
Section 4.03(d) on any P&I Advance as to which the corresponding Late Collection
was received by or on behalf of the Trust as of the related Master Servicer
Remittance Date. In addition, the Master Servicer shall not be entitled to
Advance Interest on any particular P&I Advance made thereby to the extent a
payment is received but is being held by or on behalf of the Master Servicer in
suspense.

            (e) Notwithstanding the foregoing, (i) neither a Master Servicer nor
the Trustee shall be required or permitted to make a P&I Advance for any
Companion Loan or Junior Loan or an advance for Penalty Charges, Yield
Maintenance Charges, Balloon Payments or Excess Interest, (ii) the amount
required to be advanced in respect of the interest portion of delinquent Monthly
Payments and Assumed Scheduled Payments on any Loan or REO Loan in the Mortgage
Pool that has been subject to an Appraisal Reduction will equal, with respect to
any Distribution Date, the amount of interest that would be required to be
advanced by the applicable Master Servicer without giving effect to the
Appraisal Reduction Amount, multiplied by a fraction, the numerator of which is
equal to the Stated Principal Balance of such Loan or REO Loan, as the case may
be, net of the Appraisal Reduction Amount (or, in the case of an A Loan or any
successor REO Loan with respect thereto, the portion of the Appraisal Reduction
Amount in respect of the subject Loan Combination allocable to such A Loan or
REO Loan, as the case may be), and the denominator of which is equal to the
Stated Principal Balance of such Loan or REO Loan, as the case may be, for such
Distribution Date, and (iii) if the monthly payment on any Loan has been reduced
or the final maturity extended, in connection with a bankruptcy or similar
proceeding involving the related Borrower or a modification, waiver or amendment
granted or agreed to by the applicable Special Servicer pursuant to Section
3.20, and the Monthly Payment due and owing during the extension period is less
than the amount of the Monthly Payments prior to such modification, then the
applicable Master Servicer shall, as to such Loan, advance only the amount of
the Monthly Payment due and owing after taking into account such reduction (net
of related Primary Servicing Fees, Master Servicing Fees and Workout Fees), in
the event of subsequent delinquencies thereon.

            Section 4.04 Allocation of Collateral Support Deficit.

            (a) On each Distribution Date, immediately following the
distributions to be made on such date pursuant to Section 4.01, the Certificate
Administrator shall calculate the amount, if any, by which (i) the aggregate
Stated Principal Balance (for purposes of this calculation only, not giving
effect to any reductions of the Stated Principal Balance for payments and other
collections of principal on the Mortgage Pool that were used to reimburse any
Nonrecoverable Advances and Workout-Delayed Reimbursement Amounts pursuant to
Section 3.05(a) and/or Section 3.05(b), other than payments and other
collections of principal used to reimburse Nonrecoverable Advances or
Workout-Delayed Reimbursement Amounts with respect to Loans and REO Loans as to
which a Final Recovery Determination has been made) of the Mortgage Pool
expected to be outstanding immediately following such Distribution Date is less
than (ii) then aggregate Certificate Principal Balance of the Sequential Pay
Certificates after giving effect to distributions of principal on such
Distribution Date (any such deficit, the "Collateral Support Deficit"). Any
allocation of Collateral Support Deficit to a Class of Sequential Pay
Certificates shall be made by reducing the Class Principal Balance thereof by
the amount so allocated. Any Collateral Support Deficit allocated to a Class of
Sequential Pay Certificates shall be allocated among the respective Certificates
of such Class in proportion to the Percentage Interests evidenced thereby. The
allocation of Collateral Support Deficit shall constitute an allocation of
losses and other shortfalls experienced by the Trust Fund. Reimbursement of
previously allocated Collateral Support Deficit will not constitute
distributions of principal for any purpose and will not result in an additional
reduction in the Class Principal Balance of the Class of Sequential Pay
Certificates in respect of which any such reimbursement is made.

            (b) On each Distribution Date, the Class Principal Balances of the
Sequential Pay Certificates will be reduced without distribution to the extent
of the portion of any Collateral Support Deficit, if any, allocable to such
Certificates with respect to such Distribution Date. Such reductions shall be
allocated among the respective Classes of Sequential Pay Certificates as
follows: first, to the Class S Certificates, second, to the Class Q
Certificates, third, to the Class P Certificates, fourth, to the Class O
Certificates, fifth, to the Class N Certificates; sixth, to the Class M
Certificates; seventh, to the Class L Certificates; eighth, to the Class K
Certificates; ninth, to the Class J Certificates; tenth, to the Class H
Certificates; eleventh, to the Class G Certificates; twelfth, to the Class F
Certificates; thirteenth, to the Class E Certificates; fourteenth, to the Class
D Certificates; fifteenth, to the Class C Certificates; sixteenth, to the Class
B Certificates; seventeenth, to the Class A-J Certificates; and eighteenth, to
the Class A-M Certificates, in each case, until the remaining Class Principal
Balance of each such Class of Certificates has been reduced to zero. Following
the reduction of the Class Principal Balances of all such Classes to zero, any
remaining Collateral Support Deficit shall be allocated among the Class A-1,
Class A-1-A, Class A-2, Class A-AB and Class A-3 Certificates and Class A-4FL
Regular Interest, pro rata (based upon the Class Principal Balance of each such
Class), until the remaining Class Principal Balances of such Classes have been
reduced to zero. Any Collateral Support Deficit allocated to a Class of
Certificates will be allocated among respective Certificates of such Class in
proportion to the Percentage Interests evidenced thereby.

            (c) If, on any Distribution Date, any portion of a Collateral
Support Deficit is allocated to any particular Class of Sequential Pay
Certificates (other than the Class A-4FL Certificates) or the Class A-4FL
Regular Interest, then such portion of such Collateral Support Deficit shall, on
such Distribution Date, also be deemed allocated to such Class' Corresponding
Uncertificated Lower-Tier Interest(s), in reduction of the related Lower-Tier
Principal Amount. If a Class of Sequential Pay Certificates (other than the
Class A-4FL Certificates) or the Class A-4FL Regular Interest has two or more
Corresponding Uncertificated Lower-Tier Interests, then any portion of a
Collateral Support Deficit allocable to such Corresponding Uncertificated
Lower-Tier Interests, as contemplated by the preceding sentence, shall be so
allocated in the same sequential order that deemed distributions of principal
are to be made on such Corresponding Uncertificated Lower-Tier Interests in
accordance with Section 4.01(a), in each case until the Lower-Tier Principal
Amount of the subject Corresponding Uncertificated Lower-Tier Interest is
reduced to zero.

            Section 4.05 Allocations of Uncovered Prepayment Interest Shortfall
Amounts.

            (a) The portion of any Uncovered Prepayment Interest Shortfall
Amount for any Distribution Date that is allocable to any particular Class of
Regular Certificates (other than the Class A-Y Certificates) shall equal the
product of:

            (i) the total amount of such Uncovered Prepayment Interest Shortfall
      Amount (exclusive of any portion thereof allocable to the Class A-Y
      Certificates in accordance with the next paragraph), multiplied by

            (ii) a fraction, the numerator of which is the Accrued Certificate
      Interest Amount with respect to the subject Class of Regular Certificates
      for such Distribution Date, and the denominator of which is the aggregate
      Accrued Certificate Interest Amount with respect to all of the Classes of
      Regular Certificates (other than the Class A-Y Certificates) for such
      Distribution Date.

            The portion of any Uncovered Prepayment Interest Shortfall Amount
for any Distribution Date that is allocable to the Class A-Y Certificates shall
equal the sum of the products obtained by multiplying, in the case of each
Specially Designated Co-op Loan that was the subject of a Prepayment Interest
Shortfall incurred during the related Due Period:

            (iii) the total amount of such Uncovered Prepayment Interest
      Shortfall Amount attributable to such Specially Designated Co-op Loan
      (after reduction for any Compensating Interest or Prepayment Interest
      Excess remitted by Master Servicer No. 2 to offset Prepayment Interest
      Shortfalls incurred during the related Collection Period), multiplied by

            (iv) a fraction, the numerator of which is 0.10%, and the
      denominator of which is the Net Mortgage Rate for such Specially
      Designated Co-op Loan.

            No portion of any Uncovered Prepayment Interest Shortfall Amount for
any Distribution Date that is attributable to a Loan that is not a Specially
Designated Co-op Loan shall be allocable to or reduce interest distributions on
the Class A-Y Certificates.

            Any portion of an Uncovered Prepayment Interest Shortfall Amount for
any Distribution Date that is allocable to the Class A-X Certificates shall, in
turn, be deemed allocated to the respective Components of such Class of
Certificates on a pro rata basis in accordance with the respective Accrued
Component Interest Amounts of such Components for such Distribution Date.

            (b) Any portion of an Uncovered Prepayment Interest Shortfall Amount
for any Distribution Date that is allocable to any Class of Sequential Pay
Certificates with a single Corresponding Uncertificated Lower-Tier Interest
shall be deemed to have first been allocated to such Corresponding
Uncertificated Lower-Tier Interest; any portion of an Uncovered Prepayment
Interest Shortfall Amount for any Distribution Date that is allocable to any
Class of Sequential Pay Certificates (other than the Class A-4FL Certificates)
or the Class A-4FL Regular Interest with two or more Corresponding
Uncertificated Lower-Tier Interests shall be deemed to have first been allocated
to such Corresponding Uncertificated Lower-Tier Interests, on a pro rata basis
in accordance with their respective Uncertificated Accrued Interest Amounts for
such Distribution Date; any portion of an Uncovered Prepayment Interest
Shortfall Amount for any Distribution Date that is allocable to any Component of
the Class A-SP or Class A-X Certificates shall be deemed to have first been
allocated to the Corresponding Uncertificated Lower-Tier Interest for such
Component; and any portion of an Uncovered Prepayment Interest Shortfall Amount
for any Distribution Date that is allocable to the Class A-Y Certificates shall
be deemed to have first been allocated to the Class LA-Y Lower-Tier Interest.

            (c) Any Uncovered Prepayment Interest Shortfall with respect to the
828-850 Madison Avenue Loan shall be allocated to the 828-850 Madison Avenue
Loan REMIC Regular Interest.

            Section 4.06 Grantor Trust Reporting.

            The parties intend that the portion of the Trust Fund consisting of
(i) Excess Interest and the Grantor Trust Distribution Account, (ii) the 828-850
Madison Avenue Loan REMIC Residual Interest, (iii) the Broker Strip Interests
and related amounts in the Collection Account and (iv) the Class A-4FL Regular
Interest, the Swap Agreement and the Floating Rate Account shall constitute, and
that the affairs of such portion of the Trust Fund shall be conducted so as to
qualify such portion as, a "grantor trust" under subpart E, Part I of subchapter
J of the Code, and the provisions hereof shall be interpreted consistently with
this intention. Accordingly, the Certificate Administrator agrees not to vary
the investment of the Class V Certificateholders, the Class R
Certificateholders, the Class A-4FL Certificateholders or the Broker Strip
Payees in the Grantor Trust with a view to taking advantage of fluctuations in
market rates of interest to improve their rates of return. In furtherance of
such intention, the Certificate Administrator shall furnish or cause to be
furnished to Class V Certificateholders, the Class R Certificateholders, the
Class A-4FL Certificateholders and each Broker Strip Payee information returns
with respect to income relating to their share of the related Broker Strip
Interest, Excess Interest, net income or net loss in respect of the 828-850
Madison Avenue Loan REMIC Residual Interest, or income and deductions in respect
of the Class A-4FL Regular Interest and the Swap Agreement, as applicable, and
such other information as may be required pursuant to the Code, and shall file
or cause to be filed with the Internal Revenue Service, such information
returns, schedules and other information, together with Form 1041 or such other
form as may be applicable, at the time or times and in the manner required by
the Code.

                                   ARTICLE V

                                THE CERTIFICATES

            Section 5.01 The Certificates.

            (a) The Certificates shall consist of 28 Classes with the following
respective alphabetic or alphanumeric Class designations: "A-X," "A-SP," "A-Y,"
"A-1," "A-1-A," "A-2," "A-AB," "A-3," "A-4FL," "A-M," "A-J," "B," "C," "D," "E,"
"F," "G," "H," "J," "K," "L," "M," "N," "O," "P," "Q," "S," "R" and "V,"
respectively. Any reference in any other section or subsection of this Agreement
to any Certificate or Certificates preceded by a Class designation shall be to a
Certificate or Certificates of the Class so designated in this Section 5.01(a).

            (b) The Certificates will be substantially in the respective forms
attached hereto as Exhibits A-1 through A-6; provided, however, that any of the
Certificates may be issued with appropriate insertions, omissions, substitutions
and variations, and may have imprinted or otherwise reproduced thereon such
legend or legends, not inconsistent with the provisions of this Agreement, as
may be required to comply with any law or with rules or regulations pursuant
thereto, or with the rules of any securities market in which the Certificates
are admitted to trading, or to conform to general usage. The Certificates will
be issuable in registered form only; provided, however, that in accordance with
Section 5.03 beneficial ownership interests in the Regular Certificates (other
than the Class A-Y Certificates) initially shall (and, at the option of the
Depositor, following the Closing Date, all or a portion of any other Class of
Certificates may) be held and transferred through the book-entry facilities of
the Depository. The Class A-Y Certificates shall be initially issued as
Definitive Certificates. The Regular Certificates will be issuable only in
denominations corresponding to initial Certificate Principal Balances (or, in
the case of the Interest-Only Certificates, initial Certificate Notional
Amounts) as of the Closing Date of not less than $10,000 (or, in the case of the
Interest-Only Certificates, $100,000) and any whole dollar denomination in
excess thereof. The Class R and Class V Certificates will be issuable only in
denominations representing Percentage Interests in the related Class of not less
than 10.0%.

            (c) The Certificates shall be executed by manual or facsimile
signature on behalf of the Certificate Administrator in its capacity as
Certificate Administrator hereunder by an authorized signatory. Certificates
bearing the manual or facsimile signatures of individuals who were at any time
the authorized signatory of the Certificate Administrator shall be entitled to
all benefits under this Agreement, subject to the following sentence,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the authentication and delivery of such Certificates or did not
hold such offices at the date of such Certificates. No Certificate shall be
entitled to any benefit under this Agreement, or be valid for any purpose,
however, unless there appears on such Certificate a certificate of
authentication substantially in the form provided for herein executed by the
Certificate Registrar by manual signature, and such certificate of
authentication upon any Certificate shall be conclusive evidence, and the only
evidence, that such Certificate has been duly authenticated and delivered
hereunder. All Certificates shall be dated the date of their authentication.

            Section 5.02 Registration of Transfer and Exchange of Certificates.

            (a) At all times during the term of this Agreement, there shall be
maintained at the office of the Certificate Registrar a Certificate Register in
which, subject to such reasonable regulations as the Certificate Registrar
(located as of the Closing Date at Wells Fargo Center, Sixth Street and
Marquette Avenue, Minneapolis, Minnesota 55479-0113) may prescribe, the
Certificate Registrar shall provide for the registration of Certificates and of
transfers and exchanges of Certificates as herein provided. The Certificate
Administrator is hereby initially appointed (and hereby agrees to act in
accordance with the terms hereof) as Certificate Registrar for the purpose of
registering Certificates and transfers and exchanges of Certificates as herein
provided. The Certificate Administrator may appoint, by a written instrument
delivered to the other parties hereto, any other bank or trust company to act as
Certificate Registrar under such conditions as the Certificate Administrator may
prescribe; provided that the Certificate Administrator shall not be relieved of
any of its duties or responsibilities hereunder as Certificate Registrar by
reason of such appointment. If the Certificate Administrator resigns or is
removed in accordance with the terms hereof, the successor Certificate
Administrator shall immediately succeed to its predecessor's duties as
Certificate Registrar. The Depositor, the Master Servicers and the Special
Servicers shall each have the right to inspect the Certificate Register or to
obtain a copy thereof at all reasonable times, and to rely conclusively upon a
certificate of the Certificate Registrar as to the information set forth in the
Certificate Register.

            If three or more Certificateholders make a written request to the
Certificate Administrator, and such request states that such Certificateholders
desire to communicate with other Certificateholders with respect to their rights
under this Agreement or under the Certificates and is accompanied by a copy of
the communication that such requesting Certificateholders propose to transmit,
then the Certificate Administrator shall, within 30 days after the receipt of
such request, afford (or cause any other Certificate Registrar to afford) the
requesting Certificateholders access during normal business hours to, or deliver
to the requesting Certificateholders a copy of, the most recent list of
Certificateholders held by the Certificate Registrar (which list shall be
current as of a date no earlier than 30 days prior to the Certificate
Administrator's receipt of such request). Every Certificateholder, by receiving
such access, acknowledges that neither the Certificate Registrar nor the
Certificate Administrator will be held accountable in any way by reason of the
disclosure of any information as to the names and addresses of any
Certificateholder regardless of the source from which such information was
derived. (b) No transfer, sale, pledge or other disposition of any
Non-Registered Certificate or interest therein shall be made unless that
transfer, sale, pledge or other disposition is exempt from the registration
and/or qualification requirements of the Securities Act and any applicable state
securities laws, or is otherwise made in accordance with the Securities Act and
such state securities laws.

            If a transfer of any Non-Registered Certificate is to be made
without registration under the Securities Act (other than in connection with the
initial issuance of the Certificates or a transfer of such Non-Registered
Certificate by the Depositor or an Affiliate of the Depositor or, in the case of
a Global Certificate, any transfer of such Certificate to a successor Depository
or, in the case of a Definitive Certificate issued with respect to a Global
Certificate, any transfer of such Certificate to the applicable Certificate
Owner in accordance with Section 5.03(c)), then the Certificate Registrar shall
refuse to register such transfer unless it receives (and, upon receipt, may
conclusively rely upon) either: (i) a certificate from the Certificateholder
desiring to effect such transfer substantially in the form attached hereto as
Exhibit F-1A; or (ii) a certificate from the Certificateholder desiring to
effect such transfer substantially in the form attached hereto as Exhibit F-1B
and a certificate from such Certificateholder's prospective Transferee
substantially in the form attached hereto either as Exhibit F-2A or as Exhibit
F-2B; or (iii) an Opinion of Counsel satisfactory to the Certificate
Administrator to the effect that such transfer may be made without registration
under the Securities Act (which Opinion of Counsel shall not be an expense of
the Trust or of the Depositor, any Master Servicer, either Special Servicer, the
Certificate Administrator or the Certificate Registrar in their respective
capacities as such), together with the written certification(s) as to the facts
surrounding such transfer from the Certificateholder desiring to effect such
transfer and/or such Certificateholder's prospective Transferee on which such
Opinion of Counsel is based.

            Each Global Certificate shall be deposited with the Trustee as
custodian for the Depository and registered in the name of Cede & Co. as nominee
of the Depository.

            If a transfer of an interest in any Rule 144A Global Certificate is
to be made without registration under the Securities Act (other than in
connection with the initial issuance of the Certificates or a transfer of an
interest in such Rule 144A Global Certificate by the Depositor or an Affiliate
of the Depositor), then (except as provided in the next succeeding paragraph or
in the penultimate paragraph of this Section 5.02(b)) the Certificate Owner
desiring to effect such transfer shall require from its prospective Transferee:
(i) a certificate substantially in the form attached as Exhibit F-2C hereto; or
(ii) an Opinion of Counsel to the effect that the prospective Transferee is a
Qualified Institutional Buyer and such transfer may be made without registration
under the Securities Act. Except as provided in the next succeeding paragraph or
in the penultimate paragraph of this Section 5.02(b), any interest in a Rule
144A Global Certificate shall not be transferred to any Person other than a
Qualified Institutional Buyer that takes delivery in the form of an interest in
such Rule 144A Global Certificate. If any Transferee of an interest in a Rule
144A Global Certificate does not, in connection with the subject transfer,
deliver to the Transferor the Opinion of Counsel or the certification described
in the second preceding sentence, then such Transferee shall be deemed to have
represented and warranted that all the certifications set forth in Exhibit F-2C
hereto are, with respect to the subject transfer, true and correct.

            Notwithstanding the preceding paragraph, any interest in any Rule
144A Global Certificate may be transferred (without delivery of any certificate
or Opinion of Counsel described in clauses (i) and (ii) of the first sentence of
the preceding paragraph) to any Person who takes delivery in the form of a
beneficial interest in the Regulation S Global Certificate for the same Class as
such Rule 144A Global Certificate upon delivery to the Certificate Registrar and
the Certificate Administrator of (i) a certificate from the Certificate Owner
desiring to effect such transfer substantially in the form attached hereto as
Exhibit F-1D and a certificate from such Certificate Owner's prospective
Transferee substantially in the form attached hereto as Exhibit F-2D and (ii)
such written orders and instructions as are required under the applicable
procedures of the Depository, Clearstream and/or Euroclear to direct the
Certificate Administrator to debit the account of a Depository Participant by a
denomination of interests in such Rule 144A Global Certificate, and credit the
account of a Depository Participant by a denomination of interests in such
Regulation S Global Certificate, that is equal to the denomination of beneficial
interests in the subject Class of Book-Entry Certificates, as applicable, to be
transferred. Upon delivery to the Certificate Administrator of such
certifications and such orders and instructions, the Certificate Administrator,
subject to and in accordance with the applicable procedures of the Depository,
shall reduce the denomination of the Rule 144A Global Certificate with respect
to the subject Class of Book-Entry Certificates, as applicable, and increase the
denomination of the Regulation S Global Certificate for such Class, by the
denomination of the beneficial interest in such Class specified in such orders
and instructions.

            Except as provided in the next succeeding paragraph or in the
penultimate paragraph of this Section 5.02(b), beneficial interests in any
Regulation S Global Certificate shall not be transferred to any Person other
than a non-United States Securities Person that takes delivery in the form of a
beneficial interest in such Regulation S Global Certificate, and the Certificate
Owner desiring to effect such transfer shall be required to obtain from such
prospective Transferee a certification substantially in the form attached hereto
as Exhibit F-2D. On or prior to the Release Date, beneficial interests in any
Regulation S Global Certificate may be held only through Euroclear or
Clearstream.

            Notwithstanding the preceding paragraph, any interest in any
Regulation S Global Certificate may be transferred (without delivery of any
certificate described in the first sentence of the preceding paragraph) to any
Person who takes delivery in the form of a beneficial interest in the Rule 144A
Global Certificate for the same Class as such Regulation S Global Certificate
upon delivery to the Certificate Registrar and the Certificate Administrator of
(i) a certificate from the Certificate Owner desiring to effect such transfer
substantially in the form attached hereto as Exhibit F-1C and a certificate from
such Certificate Owner's prospective Transferee substantially in the form
attached hereto as Exhibit F-2C and (ii) such written orders and instructions as
are required under the applicable procedures of the Depository, Clearstream
and/or Euroclear to direct the Certificate Administrator to debit the account of
a Depository Participant by a denomination of interests in such Regulation S
Global Certificate, and credit the account of a Depository Participant by a
denomination of interests in such Rule 144A Global Certificate, that is equal to
the denomination of beneficial interests in the subject Class of Book-Entry
Certificates, as applicable, to be transferred. Upon delivery to the Certificate
Administrator of such certifications and such orders and instructions, the
Certificate Administrator, subject to and in accordance with the applicable
procedures of the Depository, shall reduce the denomination of the Regulation S
Global Certificate with respect to the subject Class of Book-Entry Certificates,
as applicable, and increase the denomination of the Rule 144A Global Certificate
for such Class, by the denomination of the beneficial interest in such Class
specified in such orders and instructions.

            Notwithstanding the foregoing, any interest in a Global Certificate
may be transferred by any Certificate Owner holding such interest to any
Institutional Accredited Investor (other than a Qualified Institutional Buyer)
that takes delivery in the form of a Definitive Certificate of the same Class as
such Global Certificate upon delivery to the Certificate Registrar and the
Certificate Administrator of (i) such certifications and/or opinions as are
contemplated by the second paragraph of this Section 5.02(b) and (ii) such
written orders and instructions as are required under the applicable procedures
of the Depository, Clearstream and/or Euroclear to direct the Certificate
Administrator to debit the account of a Depository Participant by the
denomination of the transferred interests in such Global Certificate. Upon
delivery to the Certificate Registrar of the certifications and/or opinions
contemplated by the second paragraph of this Section 5.02(b), the Certificate
Administrator, subject to and in accordance with the applicable procedures of
the Depository, shall reduce the denomination of the subject Global Certificate,
and cause a Definitive Certificate of the same Class as such Global Certificate,
and in a denomination equal to the reduction in the denomination of such Global
Certificate, to be executed, authenticated and delivered in accordance with this
Agreement to the applicable Transferee.

            None of the Depositor, the Trustee, the Certificate Administrator or
the Certificate Registrar is obligated to register or qualify any Class of
Non-Registered Certificates under the Securities Act or any other securities law
or to take any action not otherwise required under this Agreement to permit the
transfer of any Non-Registered Certificate or interest therein without
registration or qualification. Any Certificateholder or Certificate Owner
desiring to effect a transfer, sale, pledge or other disposition of any
Non-Registered Certificate or interest therein shall, and does hereby agree to,
indemnify the Depositor, the Certificate Administrator, the Initial Purchaser,
the Master Servicers, the Special Servicers and the Certificate Registrar
against any liability that may result if such transfer, sale, pledge or other
disposition is not exempt from the registration and/or qualification
requirements of the Securities Act and any applicable state securities laws or
is not made in accordance with such federal and state laws.

            (c) No transfer of any Certificate or interest therein shall be made
to a Plan or to any Person who is directly or indirectly purchasing such
Certificate or interest therein on behalf of, as named fiduciary of, as trustee
of, or with assets of a Plan, if the purchase and holding of such Certificate or
interest therein by the prospective Transferee would result in a violation of
Section 406 or 407 of ERISA or Section 4975 of the Code or would result in the
imposition of an excise tax under Section 4975 of the Code (or, in the case of a
governmental plan, would result in a similar violation of Similar Law).

            Except in connection with the initial issuance of the Certificates
or any transfer of a Non-Registered Certificate by the Depositor or an Affiliate
of the Depositor or, in the case of a Global Certificate, any transfer of such
Certificate to a successor Depository or, in the case of a Definitive
Certificate issued with respect to a Global Certificate, any transfer of such
Certificate to the applicable Certificate Owner in accordance with Section
5.03(c), the Certificate Registrar shall refuse to register the transfer of a
Non-Registered Certificate unless it has received from the prospective
Transferee one of the following: (i) a certification to the effect that such
prospective Transferee is not a Plan and is not directly or indirectly
purchasing such Certificate or interest therein on behalf of, as named fiduciary
of, as trustee of, or with assets of a Plan or a governmental plan subject to
Similar Law; or (ii) except in the case of a Class R or Class V Certificate, a
certification to the effect that the purchase and continued holding of such
Certificate by such prospective Transferee is exempt from the prohibited
transaction provisions of Section 406 and 407 of ERISA and Section 4975 of the
Code by reason of Sections I and III of Prohibited Transaction Class Exemption
95-60; or (iii) in the case of a Non-Registered Certificate (other than a Class
R or Class V Certificate) that is rated investment grade by at least one of the
Rating Agencies and is being acquired by or on behalf of a Plan in reliance on
PTE 89-90, a certification to the effect that such Plan (X) is an accredited
investor as defined in Rule 501(a)(1) of Regulation D of the Securities Act, (Y)
is not sponsored (within the meaning of Section 3(16)(B) of ERISA) by the
Trustee, the Certificate Administrator, any Exemption-Favored Party, the
Depositor, any Mortgage Loan Seller, any Master Servicer, either Special
Servicer, the Swap Counterparty, any Primary Servicer, any Sub-Servicer or any
Borrower with respect to Loans constituting more than 5% of the aggregate
unamortized principal of all the Loans determined as of the Closing Date, or by
any Affiliate of such Person, and (Z) agrees that it will obtain from each of
its Transferees a written representation that such Transferee, if a Plan,
satisfies the requirements of the immediately preceding clauses (iii)(X) and
(iii)(Y), together with a written agreement that such Transferee will obtain
from each of its Transferees that are Plans a similar written representation
regarding satisfaction of the requirements of the immediately preceding clauses
(iii)(X) and (iii)(Y); or (iv) or, in the case of a governmental plan subject to
Similar Law, a certification that the purchase and holding of such Certificate
by the governmental plan would not result in a violation of, or imposition of
tax under, such Similar Law; or (v) except in the case of a Class R or Class V
Certificate, a certification of facts and an Opinion of Counsel (which Opinion
of Counsel shall not be an expense of the Trustee, the Certificate
Administrator, the Certificate Registrar or the Trust) which otherwise establish
to the reasonable satisfaction of the Certificate Administrator that such
transfer will not result in a violation of Sections 406 or 407 of ERISA or
Section 4975 of the Code or result in the imposition of an excise tax under
Section 4975 of the Code (or, in the case of a governmental plan, would not
result in a violation of applicable Similar Law). It is hereby acknowledged that
the form of certification attached hereto as Exhibit G-1 is acceptable for
purposes of the preceding sentence.

            Except in connection with the initial issuance of the Certificates
or any transfer of an interest in a Book-Entry Non-Registered Certificate by the
Depositor or an Affiliate of the Depositor, the Certificate Owner desiring to
effect a transfer of an interest in a Book-Entry Non-Registered Certificate
shall obtain from its prospective Transferee one of the following: (i) a
certification to the effect that such prospective Transferee is not a Plan and
is not directly or indirectly purchasing such interest in such Certificate on
behalf of, as named fiduciary of, as trustee of, or with assets of a Plan or a
governmental plan subject to Similar Law; or (ii) except in the case of a Class
R or Class V Certificate, a certification to the effect that the purchase and
continued holding of an interest in such Certificate by such prospective
Transferee is exempt from the prohibited transaction provisions of Sections 406
and 407 of ERISA and Section 4975 of the Code by reason of Sections I and III of
Prohibited Transaction Class Exemption 95-60; or (iii) if such Certificate is
not a Class R or Class V Certificate, if such Certificate is rated investment
grade by at least one of the Rating Agencies and if the interest in such
Certificate is being acquired by or on behalf of a Plan in reliance on PTE
89-90, a certification to the effect that such Plan (X) is an accredited
investor as defined in Rule 501(a)(1) of Regulation D of the Securities Act, (Y)
is not sponsored (within the meaning of Section 3(16)(B) of ERISA) by the
Trustee, the Certificate Administrator, the Depositor, any Mortgage Loan Seller,
any applicable Master Servicer, either Special Servicer, any Primary Servicer,
any Sub-Servicer or any Borrower with respect to Loans constituting more than 5%
of the aggregate unamortized principal of all the Loans determined as of the
Closing Date, or by any Affiliate of such Person, and (Z) agrees that it will
obtain from each of its Transferees a written representation that such
Transferee, if a Plan, satisfies the requirements of the immediately preceding
clauses (iii)(X) and (iii)(Y), together with a written agreement that such
Transferee will obtain from each of its Transferees that are Plans a similar
written representation regarding satisfaction of the requirements of the
immediately preceding clauses (iii)(X) and (iii)(Y); or (iv) or, in the case of
a governmental plan subject to Similar Law, a certification that the purchase
and holding of such Certificate by the governmental plan would not result in a
violation of, or imposition of tax under, such Similar Law; or (v) except in the
case of a Class R or Class V Certificate, a certification of facts and an
Opinion of Counsel to the effect that such transfer will not result in a
violation of Sections 406 or 407 of ERISA or Section 4975 of the Code or result
in the imposition of an excise tax under Section 4975 of the Code (or, in the
case of a governmental plan, would not result in a violation of applicable
Similar Law). It is hereby acknowledged that the form of certification attached
hereto as Exhibit G-2 is acceptable for purposes of the preceding sentence.

            Each Transferee of any Registered Certificate or interest therein or
of an interest in any Book-Entry Non-Registered Certificate shall be deemed to
have represented and warranted that either: (i) such Transferee is not a Plan
and is not directly or indirectly purchasing such Certificate or interest
therein on behalf of, as named fiduciary of, as trustee of, or with assets of a
Plan or a governmental plan subject to Similar Law; or (ii) the purchase and
continued holding of such Certificate or interest therein by such Transferee is
exempt from the prohibited transaction provisions of Section 406 and 407 of
ERISA and Section 4975 of the Code (or, in the case of a governmental plan,
would not result in a violation of applicable Similar Law).

            (d) (i) Each Person who has or acquires any Ownership Interest in a
Class R Certificate shall be deemed by the acceptance or acquisition of such
Ownership Interest to have agreed to be bound by the following provisions and to
have irrevocably authorized the Certificate Administrator under clause (d)(ii)
below to deliver payments to a Person other than such Person and, further, to
negotiate the terms of any mandatory disposition and to execute all instruments
of Transfer and do all other things necessary in connection with any such
disposition. The rights of each Person acquiring any Ownership Interest in a
Class R Certificate are expressly subject to the following provisions:

                        (A) Each Person holding or acquiring any Ownership
                  Interest in a Class R Certificate shall be a Permitted
                  Transferee and shall promptly notify the Certificate
                  Administrator of any change or impending change in its status
                  as a Permitted Transferee.

                        (B) In connection with any proposed Transfer of any
                  Ownership Interest in a Class R Certificate, the Certificate
                  Registrar shall require delivery to it, and shall not register
                  the Transfer of any Class R Certificate until its receipt, of
                  an affidavit and agreement substantially in the form attached
                  hereto as Exhibit H-1 (a "Transfer Affidavit and Agreement"),
                  from the proposed Transferee, representing and warranting,
                  among other things, that such Transferee is a Permitted
                  Transferee, that it is not acquiring its Ownership Interest in
                  the Class R Certificate that is the subject of the proposed
                  Transfer as a nominee, trustee or agent for any Person that is
                  not a Permitted Transferee, that for so long as it retains its
                  Ownership Interest in a Class R Certificate it will endeavor
                  to remain a Permitted Transferee, and that it has reviewed the
                  provisions of this Section 5.02(d) and agrees to be bound by
                  them.

                        (C) Notwithstanding the delivery of a Transfer Affidavit
                  and Agreement by a proposed Transferee under clause (B) above,
                  if a Responsible Officer of either the Certificate
                  Administrator or the Certificate Registrar has actual
                  knowledge that the proposed Transferee is not a Permitted
                  Transferee, no Transfer of an Ownership Interest in a Class R
                  Certificate to such proposed Transferee shall be effected.

                        (D) Each Person holding or acquiring any Ownership
                  Interest in a Class R Certificate shall agree (1) to require a
                  Transfer Affidavit and Agreement in the form attached hereto
                  as Exhibit H-1 from any prospective Transferee to whom such
                  Person attempts to transfer its Ownership Interest in such
                  Class R Certificate and (2) not to transfer its Ownership
                  Interest in such Class R Certificate unless it provides to the
                  Certificate Registrar and the Certificate Administrator a
                  certificate substantially in the form attached hereto as
                  Exhibit H-2 stating that, among other things, it has no actual
                  knowledge that such prospective Transferee is not a Permitted
                  Transferee.

                        (E) Each Person holding or acquiring an Ownership
                  Interest in a Class R Certificate, by purchasing such
                  Ownership Interest, agrees to give the Certificate
                  Administrator written notice that it is a "pass-through
                  interest holder" within the meaning of temporary Treasury
                  Regulations Section 1.67-3T(a)(2)(i)(A) immediately upon
                  acquiring an Ownership Interest in a Class R Certificate if it
                  is, or is holding an Ownership Interest in a Class R
                  Certificate on behalf of, a "pass-through interest holder."

            (ii) (A) If any purported Transferee shall become a Holder of a
      Class R Certificate in violation of the provisions of this Section
      5.02(d), then the last preceding Holder of such Class R Certificate that
      was in compliance with the provisions of this Section 5.02(d) shall be
      restored, to the extent permitted by law, to all rights as Holder thereof
      retroactive to the date of registration of such Transfer of such Class R
      Certificate. None of the Depositor, the Certificate Administrator or the
      Certificate Registrar shall be under any liability to any Person for any
      registration of Transfer of a Class R Certificate that is in fact not
      permitted by this Section 5.02(d) or for making any payments due on such
      Certificate to the Holder thereof or for taking any other action with
      respect to such Holder under the provisions of this Agreement.

                        (B) If any purported Transferee shall become a Holder of
                  a Class R Certificate in violation of the restrictions in this
                  Section 5.02(d), then, to the extent that retroactive
                  restoration of the rights of the preceding Holder of such
                  Class R Certificate as described in the preceding paragraph of
                  this clause (d)(ii) shall be invalid, illegal or
                  unenforceable, the Certificate Administrator shall have the
                  right, but not the obligation, to cause the transfer of such
                  Class R Certificate to a Permitted Transferee selected by the
                  Certificate Administrator on such terms as the Certificate
                  Administrator may choose, and the Certificate Administrator
                  shall not be liable to any Person having an Ownership Interest
                  in such Class R Certificate or any other Person as a result of
                  its exercise of such discretion. Such purported Transferee
                  shall promptly endorse and deliver such Class R Certificate in
                  accordance with the instructions of the Certificate
                  Administrator. Such Permitted Transferee may be the
                  Certificate Administrator itself or any Affiliate of the
                  Certificate Administrator.

            (iii) The Certificate Administrator shall make available to the IRS
      and to those Persons specified by the REMIC Provisions all information
      furnished to it by the other parties hereto necessary to compute any tax
      imposed (A) as a result of the Transfer of an Ownership Interest in a
      Class R Certificate to any Person who is a Disqualified Organization,
      including the information described in Treasury Regulations Sections
      1.860D-1(b)(5) and 1.860E-2(a)(5) with respect to the "excess inclusions"
      for the sole class of residual interests in each Trust REMIC and (B) as a
      result of any regulated investment company, real estate investment trust,
      common trust fund, partnership, trust, estate or organization described in
      Section 1381 of the Code that holds an Ownership Interest in a Class R
      Certificate having as among its record holders at any time any Person
      which is a Disqualified Organization, and each of the other parties hereto
      shall furnish to the Certificate Administrator all information in its
      possession necessary for the Certificate Administrator to discharge such
      obligation. The Person holding such Ownership Interest shall be
      responsible for the reasonable compensation of the Certificate
      Administrator for providing such information.

            (iv) The provisions of this Section 5.02(d) set forth prior to this
      clause (iv) may be modified, added to or eliminated; provided that there
      shall have been delivered to the Certificate Administrator the following:

                        (A) written confirmation from each Rating Agency to the
                  effect that the modification of, addition to or elimination of
                  such provisions will not result in the downgrading, withdrawal
                  or qualification of the then-current rating assigned by such
                  Rating Agency to any Certificate; and

                        (B) an Opinion of Counsel, in form and substance
                  satisfactory to the Certificate Administrator, obtained at the
                  expense of the party seeking such modification of, addition to
                  or elimination of such provisions (but in no event at the
                  expense of the Certificate Administrator or the Trust), to the
                  effect that doing so will not (1) cause either Trust REMIC to
                  cease to qualify as a REMIC or be subject to an entity-level
                  tax caused by the Transfer of any Class R Certificate to a
                  Person which is not a Permitted Transferee or (2) cause a
                  Person other than the prospective Transferee to be subject to
                  a REMIC-related tax caused by the Transfer of a Class R
                  Certificate to a Person that is not a Permitted Transferee.

            (e) If a Person is acquiring any Non-Registered Certificate as a
fiduciary or agent for one or more accounts, such Person shall be required to
deliver to the Certificate Registrar a certification to the effect that, and
such other evidence as may be reasonably required by the Certificate
Administrator to confirm that, it has (i) sole investment discretion with
respect to each such account and (ii) full power to make the applicable
foregoing acknowledgments, representations, warranties, certifications and/or
agreements with respect to each such account as set forth in subsections (b),
(c) and/or (d), as appropriate, of this Section 5.02.

            (f) Subject to the preceding provisions of this Section 5.02, upon
surrender for registration of transfer of any Certificate at the offices of the
Certificate Registrar maintained for such purpose, the Trustee shall execute and
the Certificate Registrar shall authenticate and deliver, in the name of the
designated transferee or transferees, one or more new Certificates of authorized
denominations of the same Class evidencing a like aggregate Percentage Interest.

            (g) At the option of any Holder, its Certificates may be exchanged
for other Certificates of authorized denominations of the same Class evidencing
a like aggregate Percentage Interest, upon surrender of the Certificates to be
exchanged at the offices of the Certificate Registrar maintained for such
purpose. Whenever any Certificates are so surrendered for exchange, the Trustee
shall execute and the Certificate Registrar shall authenticate and deliver the
Certificates which the Certificateholder making the exchange is entitled to
receive.

            (h) Every Certificate presented or surrendered for transfer or
exchange shall (if so required by the Certificate Registrar) be duly endorsed
by, or be accompanied by a written instrument of transfer in the form
satisfactory to the Certificate Registrar duly executed by, the Holder thereof
or his attorney duly authorized in writing.

            (i) No service charge shall be imposed for any transfer or exchange
of Certificates, but the Certificate Administrator or the Certificate Registrar
may require payment of a sum sufficient to cover any tax, expense or other
governmental charge that may be imposed in connection with any transfer or
exchange of Certificates.

            (j) All Certificates surrendered for transfer and exchange shall be
physically canceled by the Certificate Registrar, and the Certificate Registrar
shall dispose of such canceled Certificates in accordance with its standard
procedures.

            (k) The Certificate Registrar or the Trustee shall provide to each
of the other parties hereto, upon reasonable written request, an updated copy of
the Certificate Register.

            Section 5.03 Book-Entry Certificates.

            (a) The Regular Certificates (exclusive of the Class A-Y
Certificates) shall, in the case of each Class thereof, initially be issued
(and, at the option of the Depositor, subsequent to the Closing Date, all or any
portion of any other Class of Certificates may be issued) as one or more
Certificates registered in the name of the Depository or its nominee and, except
as provided in Section 5.02(b) or Section 5.03(c), transfer of such Certificates
may not be registered by the Certificate Registrar unless such transfer is to a
successor Depository that agrees to hold such Certificates for the respective
Certificate Owners with Ownership Interests therein. Such Certificate Owners
shall hold and, subject to Section 5.02, transfer their respective Ownership
Interests in and to such Certificates through the book-entry facilities of the
Depository; and, except as provided in Section 5.02(b) or Section 5.03(c) below,
such Certificate Owners shall not be entitled to fully registered, physical
Certificates ("Definitive Certificates") in respect of such Ownership Interests.
All transfers by Certificate Owners of their respective Ownership Interests in
the Book-Entry Certificates shall be made in accordance with the procedures
established by the Depository Participant or indirect participating brokerage
firm representing each such Certificate Owner. Each Depository Participant shall
only transfer the Ownership Interests in the Book-Entry Certificates of
Certificate Owners it represents or of indirect participating brokerage firms
for which it acts as agent in accordance with the Depository's normal
procedures. Neither the Trustee nor the Certificate Registrar shall have any
responsibility to monitor or restrict the transfer of any ownership interest in
a Book-Entry Certificate transferable through the book-entry facilities of the
Depository.

            (b) Except as expressly provided to the contrary herein, the
Depositor, each Master Servicer, each Special Servicer, the Trustee and the
Certificate Registrar may for all purposes, including the making of payments due
on the Book-Entry Certificates, deal with the Depository as the authorized
representative of the Certificate Owners with respect to such Certificates for
the purposes of exercising the rights of Certificateholders hereunder. Except as
expressly provided to the contrary herein, the rights of Certificate Owners with
respect to the Book-Entry Certificates shall be limited to those established by
law and agreements between such Certificate Owners and the Depository
Participants and indirect participating brokerage firms representing such
Certificate Owners. Multiple requests and directions from, and votes of, the
Depository as Holder of the Book-Entry Certificates with respect to any
particular matter shall not be deemed inconsistent if they are made with respect
to different Certificate Owners. The Trustee may establish a reasonable record
date in connection with solicitations of consents from or voting by
Certificateholders and shall give notice to the Depository of such record date.

            (c) If (i)(A) the Depositor advises the Trustee and the Certificate
Registrar in writing that the Depository is no longer willing or able to
discharge properly its responsibilities with respect to any Class of Book-Entry
Certificates, and (B) the Depositor is unable to locate a qualified successor,
or (ii) the Depositor at its option advises the Trustee and the Certificate
Registrar in writing that it elects to terminate the book-entry system through
the Depository with respect to all or any portion of any Class of Book-Entry
Certificates, the Certificate Registrar shall notify all affected Certificate
Owners, through the Depository, of the occurrence of any such event and of the
availability of Definitive Certificates to such Certificate Owners requesting
the same. Upon surrender to the Certificate Registrar of any Class of Book-Entry
Certificates (or any portion of any Class thereof) by the Depository,
accompanied by registration instructions from the Depository for registration of
transfer, the Trustee shall execute, and the Certificate Registrar shall
authenticate and deliver, the Definitive Certificates in respect of such Class
(or portion thereof) to the Certificate Owners identified in such instructions.
None of the Depositor, any Master Servicer, either Special Servicer, the
Trustee, the Certificate Administrator or the Certificate Registrar shall be
liable for any delay in delivery of such instructions and may conclusively rely
on, and shall be protected in relying on, such instructions. Upon the issuance
of Definitive Certificates for purposes of evidencing ownership of any
Book-Entry Certificates, the registered holders of such Definitive Certificates
shall be recognized as Certificateholders hereunder and, accordingly, shall be
entitled directly to receive payments on, to exercise Voting Rights with respect
to, and to transfer and exchange such Definitive Certificates.

            Section 5.04 Mutilated, Destroyed, Lost or Stolen Certificates.

            If (i) any mutilated Certificate is surrendered to the Certificate
Registrar, or the Certificate Registrar receives evidence to its satisfaction of
the destruction, loss or theft of any Certificate, and (ii) there is delivered
to the Certificate Administrator and the Certificate Registrar such security or
indemnity as may be reasonably required by them to save each of them harmless,
then, in the absence of actual notice to the Trustee or the Certificate
Registrar that such Certificate has been acquired by a bona fide purchaser, the
Certificate Administrator shall execute and the Certificate Registrar shall
authenticate and deliver, in exchange for or in lieu of any such mutilated,
destroyed, lost or stolen Certificate, a new Certificate of the same Class and
like Percentage Interest. Upon the issuance of any new Certificate under this
Section, the Trustee and the Certificate Registrar may require the payment of a
sum sufficient to cover any tax or other governmental charge that may be imposed
in relation thereto and any other expenses (including the fees and expenses of
the Trustee and the Certificate Registrar) connected therewith. Any replacement
Certificate issued pursuant to this Section shall constitute complete and
indefeasible evidence of ownership in the Trust Fund, as if originally issued,
whether or not the lost, stolen or destroyed Certificate shall be found at any
time.

            Section 5.05 Persons Deemed Owners.

            Prior to due presentment for registration of transfer, the
Depositor, the Master Servicers, the Special Servicers, the Trustee, the
Certificate Administrator, the Certificate Registrar and any agent of any of
them may treat the Person in whose name any Certificate is registered as the
owner of such Certificate for the purpose of receiving distributions pursuant to
Section 4.01 and for all other purposes whatsoever, and none of the Depositor,
any Master Servicer, either Special Servicer, the Trustee, the Certificate
Administrator, the Certificate Registrar or any agent of any of them shall be
affected by notice to the contrary.

            Section 5.06 Certification by Certificateholders and Certificate
Owners.

            (a) Each Certificate Owner is hereby deemed by virtue of its
acquisition of an Ownership Interest in the Book-Entry Certificates to agree to
comply with the transfer requirements of Section 5.02.

            (b) To the extent that it is necessary, pursuant to the terms of
this Agreement, to determine whether any Person is a Certificateholder or a
Certificate Owner, the Certificate Administrator shall make such determination
based on a certificate of such Person, which certificate shall be in such form
as shall be reasonably acceptable to the Certificate Administrator and shall
specify the Class and Certificate Principal Balance or Certificate Notional
Amount, as the case may be, of the Book-Entry Certificate beneficially owned;
provided, however, that the Certificate Administrator shall not knowingly
recognize such Person as a Certificate Owner if such Person, to the knowledge of
a Responsible Officer of the Certificate Administrator, acquired its Ownership
Interest in a Book-Entry Certificate in violation of Section 5.02, or if such
Person's certification that it is a Certificate Owner is in direct conflict with
information obtained by the Certificate Administrator from the Depository,
Depository Participants and/or indirect participating brokerage firms for which
Depository Participants act as agents, with respect to the identity of a
Certificate Owner (although the Trustee has no obligation to obtain any such
information). The Certificate Administrator shall exercise its reasonable
discretion in making any determination under this Section 5.06(b) and shall
afford any Person providing information with respect to its beneficial ownership
of any Book-Entry Certificate an opportunity to resolve any discrepancies
between the information provided and any other information available to the
Certificate Administrator.

            Section 5.07 Appointment of Paying Agent

            The Certificate Administrator may appoint a Paying Agent for the
purpose of making distributions to Certificateholders pursuant to Section 4.01.
The Certificate Administrator shall cause such Paying Agent, if other than the
Certificate Administrator or the Servicer, to execute and deliver to the
Certificate Administrator an instrument in which such Paying Agent shall agree
with the Certificate Administrator that such Paying Agent will hold all sums
held by it for the payment to Certificateholders in trust for the benefit of the
Certificateholders entitled thereto until such sums have been paid to the
Certificateholders or disposed of as otherwise provided herein. The initial
Paying Agent shall be the Certificate Administrator. Except for the Certificate
Administrator, as the initial Paying Agent, the Paying Agent shall at all times
be an entity having a long-term unsecured debt rating of at least "A+" by S&P,
"A" by Fitch and "A1" by Moody's.

            Notwithstanding the foregoing in this Section 5.07, the appointment
of the Paying Agent shall not relieve the Certificate Administrator from any of
its obligations hereunder, and the Certificate Administrator shall remain
responsible for all acts and omissions of the Paying Agent.

            (a) From time to time, upon the request of and at no expense to the
Trustee, the Certificate Registrar shall deliver to the Trustee the list of
Certificateholders and their addresses as currently reflected in the Certificate
Register.

                                   ARTICLE VI

          THE DEPOSITOR, THE MASTER SERVICERS AND THE SPECIAL SERVICERS

            Section 6.01 Liability of the Depositor, the Master Servicers and
the Special Servicers.

            The Depositor, the Master Servicers and the Special Servicers shall
each be liable in accordance herewith only to the extent of the respective
obligations specifically imposed upon and undertaken by the Depositor, each
Master Servicer and each Special Servicer herein.

            Section 6.02 Merger, Consolidation or Conversion of the Depositor,
the Master Servicers or the Special Servicers.

            (a) Subject to subsection (b) below, the Depositor, each Master
Servicer and each Special Servicer each will keep in full effect its existence,
rights and franchises under the laws of the jurisdiction of its incorporation or
organization, and each will obtain and preserve its qualification to do business
as a foreign corporation or limited partnership in each jurisdiction in which
such qualification is or shall be necessary to protect the enforceability of the
Loans and to perform its respective duties under this Agreement.

            (b) The Depositor, each Master Servicer and each Special Servicer
may each be merged or consolidated with or into any Person (other than the
Trustee), or transfer all or substantially all of its assets to any Person
(other than the Trustee), in which case any Person resulting from any merger or
consolidation to which the Depositor, such Master Servicer or such Special
Servicer shall be a party, or any Person succeeding to the business of the
Depositor, such Master Servicer or such Special Servicer, shall be the successor
of the Depositor, such Master Servicer or such Special Servicer, as the case may
be, hereunder, without the execution or filing of any paper (other than an
assumption agreement wherein the successor shall agree to perform the
obligations of and serve as the Depositor, Master Servicer No. 1, Master
Servicer No. 2, Special Servicer No. 1 or Special Servicer No. 2, as the case
may be, in accordance with the terms of this Agreement) or any further act on
the part of any of the parties hereto, anything herein to the contrary
notwithstanding; provided, however, that such merger, consolidation or
succession will not or has not resulted in a withdrawal, downgrading or
qualification of then-current ratings of the Classes of Certificates that have
been so rated (as evidenced by a letter to such effect from each Rating Agency,
obtained at the expense of the Person resulting from such merger or
consolidation or succeeding to such business). Notwithstanding the foregoing,
prior to the date upon which the Trust's Exchange Act reporting obligation is
suspended by the filing of the Form 15 Suspension Notification as contemplated
by Section 11.10, no Master Servicer or Special Servicer may remain the Master
Servicer or Special Servicer under this Agreement after (x) being merged or
consolidated with or into any Person that is a Prohibited Party in the case of
Master Servicer No. 1 or Master Servicer No. 2, or (y) transferring all or
substantially all of its assets to any Person if such Person is a Prohibited
Party in the case of Master Servicer No. 1 or Master Servicer No. 2, except to
the extent (i) such Master Servicer or Special Servicer is the surviving entity
(which may include any direct or indirect subsidiary of such Master Servicer or
Special Servicer, or in the case of Master Servicer No. 1, may include any
direct or indirect subsidiary of KeyCorp) of such merger, consolidation or
transfer and has been and continues to be in compliance with its Regulation AB
reporting obligations hereunder or (ii) the Depositor consents to such merger,
consolidation or transfer, which consent shall not be unreasonably withheld.

            Section 6.03 Limitation on Liability of the Trustee, the Certificate
Administrator, the Depositor, the Master Servicers, the Special Servicers and
Others.

            (a) None of the Depositor, the Trustee, the Certificate
Administrator, any Master Servicer, either Special Servicer nor any of the
Affiliates, directors, partners, members, managers, shareholders, officers,
employees or agents of any of them shall be under any liability to the Trust
Fund, the Underwriters, the parties hereto, the Certificateholders, the holder
of any Companion Loan, the holder of any Junior Loan or any other Person for any
action taken or for refraining from the taking of any action in good faith
pursuant to this Agreement, or for errors in judgment; provided, however, that
this provision shall not protect any of the Depositor, the Trustee, the
Certificate Administrator, any Master Servicer and/or either Special Servicer
against any breach of warranties or representations made by such party herein or
any liability which would otherwise be imposed by reason of willful misfeasance,
bad faith or negligence in the performance of its duties or by reason of
negligent disregard of its obligations and duties hereunder. The Depositor, each
Master Servicer, each Special Servicer, the Trustee, the Certificate
Administrator and any director, officer, employee or agent of the Depositor, the
Trustee, the Certificate Administrator, any Master Servicer or either Special
Servicer may rely in good faith on any document of any kind which, prima facie,
is properly executed and submitted by any Person respecting any matters arising
hereunder.

            The Depositor, each Master Servicer, each Special Servicer, the
Trustee, the Certificate Administrator and any Affiliate, director, shareholder,
member, partner, manager, officer, employee or agent of any of the foregoing
shall be indemnified and held harmless by the Trust Fund and/or any affected
Junior Loan Holder(s) or Companion Loan Holders, out of amounts on deposit in a
Collection Account, the Distribution Account or, if applicable or a Junior Loan
Custodial Account or Companion Loan Custodial Account, all as provided in
Section 3.04 and Section 3.05, against any loss, liability or expense incurred
in connection with or relating to this Agreement, the Loans, any Junior Loan or
the Certificates (including the distribution or posting of reports or other
information as contemplated by this Agreement), other than any loss, liability
or expense: (i) specifically required to be borne by such party pursuant to the
terms hereof; (ii) incurred in connection with any breach of a representation or
warranty made by it herein; (iii) incurred by reason of bad faith, willful
misconduct or negligence in the performance of its obligations or duties
hereunder, or by reason of negligent disregard of such obligations or duties; or
(iv) in the case of the Depositor and any of its directors, officers, employees
and agents, incurred in connection with any violation by any of them of any
state or federal securities law; provided that this provision is in no way
intended to apply to the payment of servicing compensation, the reimbursement of
Advances or the payment of interest on Advances, which the parties hereto
acknowledge are expressly addressed elsewhere in this Agreement; and provided,
further, that this provision is not intended to apply to ordinary expenses
(including allocable overhead) incurred in the customary performance by a Master
Servicer or Special Servicer of its duties hereunder or any expenses that would
not constitute "unanticipated expenses incurred by the REMIC" within the meaning
of Treasury Regulations Section 1.860G-1(b)(iii).

            (b) None of the Depositor, the Trustee, the Certificate
Administrator, any Master Servicer or either Special Servicer shall be under any
obligation to appear in, prosecute or defend any legal or administrative action,
proceeding, hearing or examination that is not incidental to its respective
duties under this Agreement and which in its opinion may involve it in any
expense or liability which it is not reasonably assured of reimbursement thereof
by the Trust; provided, however, that the Depositor, any Master Servicer, either
Special Servicer or the Trustee or the Certificate Administrator may in its
discretion undertake any such action, proceeding, hearing or examination that it
may deem necessary or desirable in respect to this Agreement and the rights and
duties of the parties hereto and the interests of the Certificateholders
hereunder. In such event, the legal fees, expenses and costs of such action,
proceeding, hearing or examination and any liability resulting therefrom shall
be expenses, costs and liabilities of the Trust Fund, and the Depositor, such
Master Servicer, such Special Servicer, the Trustee and the Certificate
Administrator shall be entitled to be reimbursed therefor out of amounts on
deposit in a Collection Account, the Distribution Account or, if applicable, a
Junior Loan Custodial Account, all as provided in Section 3.04 and Section 3.05.

            (c) Each Master Servicer and Special Servicer agrees to indemnify
the Depositor, the Trust Fund and the Trustee, and hold it harmless, from and
against any and all claims, losses, penalties, fines, forfeitures, reasonable
legal fees and related out-of-pocket costs, judgments, and any other
out-of-pocket costs, liabilities, fees and expenses that any of them may sustain
arising from or as a result of any willful misfeasance, bad faith or negligence
of such Master Servicer or Special Servicer, as the case may be, in the
performance of its obligations and duties under this Agreement or by reason of
negligent disregard by such Master Servicer or Special Servicer, as the case may
be, of its duties and obligations hereunder or by reason of breach of any
representations or warranties made by it herein. Each Master Servicer and
Special Servicer may consult with counsel, and any written advice or Opinion of
Counsel shall be full and complete authorization and protection with respect to
any action taken or suffered or omitted by it hereunder in good faith in
accordance with the Servicing Standard and in accordance with such advice or
Opinion of Counsel relating to (i) tax matters, (ii) any amendment of this
Agreement under Article X, (iii) the defeasance of any Defeasance Loan or (iv)
any matter involving legal proceeding with a Borrower.

            The Trustee or the Certificate Administrator shall immediately
notify the applicable Master Servicer or the applicable Special Servicer, as
applicable, if a claim is made by a third party with respect to this Agreement
or the Loans entitling the Trust Fund or the Trustee to indemnification
hereunder, whereupon such Master Servicer or Special Servicer, as the case may
be, shall assume the defense of such claim and pay all expenses in connection
therewith, including counsel fees, and promptly pay, discharge and satisfy any
judgment or decree which may be entered against it or them in respect of such
claim. Any failure to so notify a Master Servicer or Special Servicer, as the
case may be, shall not affect any rights that the Trust Fund or the Trustee may
have to indemnification under this Agreement or otherwise, unless such Master
Servicer's or Special Servicer's, as the case may be, defense of such claim is
materially prejudiced thereby. The indemnification provided herein shall survive
the termination of this Agreement and the termination or resignation of the
indemnifying party hereunder.

            The Depositor shall immediately notify the Trustee, the applicable
Master Servicer or the applicable Special Servicer, as applicable, if a claim is
made by a third party with respect to this Agreement or the Loans entitling the
Depositor to indemnification hereunder, whereupon such Master Servicer or
Special Servicer, as the case may be, shall assume the defense of such claim and
pay all expenses in connection therewith, including counsel fees, and promptly
pay, discharge and satisfy any judgment or decree which may be entered against
it or them in respect of such claim. Any failure to so notify a Master Servicer
or Special Servicer, as the case may be, shall not affect any rights that the
Depositor may have to indemnification under this Agreement or otherwise, unless
such Master Servicer's or Special Servicer's, as the case may be, defense of
such claim is materially prejudiced thereby. The indemnification provided herein
shall survive the termination of this Agreement and the termination or
resignation of the indemnifying party.

            The Depositor agrees to indemnify each Master Servicer, each Special
Servicer, the Trustee and the Certificate Administrator and any Affiliate,
director, officer, employee or agent thereof, and hold them harmless, from and
against any and all claims, losses, penalties, fines, forfeitures, reasonable
legal fees and related out-of-pocket costs, judgments, and any other
out-of-pocket costs, liabilities, fees and expenses that any of them may sustain
arising from or as a result of any breach of representations and warranties or
failure in the performance of the Depositor's obligations and duties under this
Agreement. The applicable Master Servicer, the applicable Special Servicer, the
Certificate Administrator or the Trustee, as applicable, shall immediately
notify the Depositor if a claim is made by a third party with respect to this
Agreement or the Loans entitling it to indemnification hereunder, whereupon the
Depositor shall assume the defense of such claim and pay all expenses in
connection therewith, including counsel fees, and promptly pay, discharge and
satisfy any judgment or decree which may be entered against it or them in
respect of such claim. Any failure to so notify the Depositor shall not affect
any rights that any of the foregoing Persons may have to indemnification under
this Agreement or otherwise, unless the Depositor's defense of such claim is
materially prejudiced thereby. The indemnification provided herein shall survive
the termination of this Agreement and the termination or resignation of the
indemnifying party.

            Each of the Trustee and the Certificate Administrator, respectively
(and not jointly and severally) agrees to indemnify each Master Servicer, each
Special Servicer and the Depositor and any Affiliate, director, officer,
employee or agent thereof, and hold them harmless, from and against any and all
claims, losses, penalties, fines, forfeitures, reasonable legal fees and related
out-of-pocket costs, judgments, and any other out-of-pocket costs, liabilities,
fees and expenses that any of them may sustain arising from or as a result of
any breach of representations and warranties made by it herein or as a result of
any willful misfeasance, bad faith or negligence of the Trustee or the
Certificate Administrator, respectively, in the performance of its obligations
and duties under this Agreement or the negligent disregard by the Trustee or the
Certificate Administrator, respectively, of its duties and obligations
hereunder. The Depositor, the applicable Master Servicer or the applicable
Special Servicer, as applicable, shall immediately notify the Trustee and the
Certificate Administrator, respectively, if a claim is made by a third party
with respect to this Agreement or the Loans entitling it to indemnification
hereunder, whereupon the Trustee or the Certificate Administrator shall assume
the defense of such claim and pay all expenses in connection therewith,
including counsel fees, and promptly pay, discharge and satisfy any judgment or
decree which may be entered against it or them in respect of such claim. Any
failure to so notify the Trustee or the Certificate Administrator shall not
affect any rights that any of the foregoing Persons may have to indemnification
under this Agreement or otherwise, unless the Trustee's or the Certificate
Administrator's defense of such claim is materially prejudiced thereby. The
indemnification provided herein shall survive the termination of this Agreement
and the termination or resignation of the indemnifying party.

            Section 6.04 Master Servicers and Special Servicers Not to Resign.

            Subject to the provisions of Section 6.02, no Master Servicer or
Special Servicer shall resign from its obligations and duties hereunder except
upon (a) a determination that such party's duties hereunder are no longer
permissible under applicable law or (b) upon the appointment of, and the
acceptance of such appointment by, a successor to the resigning Master Servicer
or Special Servicer, as applicable, and, at the expense of the resigning Master
Servicer or Special Servicer, as applicable, receipt by the Trustee of written
confirmation from each applicable Rating Agency that such resignation and
appointment will not cause such Rating Agency to downgrade, withdraw or qualify
any of the then-current ratings assigned by such Rating Agency to any Class of
Certificates. Any such determination permitting the resignation of a Master
Servicer or Special Servicer pursuant to above clause (a) of the preceding
sentence shall be evidenced by an Opinion of Counsel (the cost of which,
together with any other expenses of such resignation, shall be at the expense of
the resigning party) to such effect delivered to the Trustee. No such
resignation by a Master Servicer or Special Servicer shall become effective
until the Trustee or another successor thereto shall have assumed the resigning
Master Servicer's or Special Servicer's, as applicable, responsibilities and
obligations in accordance with Section 7.02. This section shall not apply to any
"deemed resignation" imposed under any other section of this Agreement except to
the extent expressly set forth in that other section.

            Section 6.05 Rights of the Depositor in Respect of the Master
Servicers and the Special Servicers.

            The Depositor may, but is not obligated to, enforce the obligations
of the Master Servicers and the Special Servicers hereunder and may, but is not
obligated to, perform, or cause a designee to perform, any defaulted obligation
of a Master Servicer or Special Servicer hereunder or exercise the rights of a
Master Servicer or Special Servicer, as applicable, hereunder; provided,
however, that any such Master Servicer or Special Servicer shall not be relieved
of any of its obligations hereunder by virtue of such performance by the
Depositor or its designee. The Depositor shall not have any responsibility or
liability for any action or failure to act by a Master Servicer or Special
Servicer and is not obligated to supervise the performance of the Master
Servicers or the Special Servicers under this Agreement or otherwise.

                                  ARTICLE VII

                                     DEFAULT

            Section 7.01 Events of Default; Master Servicer and Special Servicer
Termination.

            (a) "Event of Default," wherever used herein, means any one of the
following events:

            (i) any failure by a Master Servicer to (A) deposit into a
      Collection Account, a Junior Loan Custodial Account, a Companion Loan
      Custodial Account, a Servicing Account, a Cash Collateral Account or a
      Lock-Box Account any amount required to be so deposited by it pursuant to
      this Agreement, which failure is not cured within two Business Days after
      such deposit was required to be made, or (B) deposit into, or remit to the
      Certificate Administrator for deposit into, the Grantor Trust Distribution
      Account, the Excess Liquidation Proceeds Account, the Interest Reserve
      Account, the Floating Rate Account or the Distribution Account, as
      applicable, any amount (including a P&I Advance or a payment to cover a
      Prepayment Interest Shortfall) required to be so deposited or remitted by
      it on any Master Servicer Remittance Date, which failure is not cured by
      11:00 a.m. New York City time on the related Distribution Date (and such
      Master Servicer shall pay to the Certificate Administrator, for the
      account of the Certificate Administrator, interest on such late remittance
      at the Reimbursement Rate from and including the subject Master Servicer
      Remittance Date to but excluding the subject Distribution Date), or (C)
      make any Servicing Advance required to be made by it pursuant to this
      Agreement, which failure remains uncured for 15 days (or such shorter time
      as is necessary to avoid the lapse of any required Insurance Policy or the
      foreclosure of any tax lien on the related Mortgaged Property); or

            (ii) any failure by a Special Servicer to deposit into, or to remit
      to the applicable Master Servicer for deposit into, a Collection Account,
      a Junior Loan Custodial Account, a Companion Loan Custodial Account, a
      Servicing Account, the Floating Rate Account or an REO Account, or to
      deposit into, or to remit to the Certificate Administrator for deposit
      into, the Distribution Account any amount required to be so deposited or
      remitted by such Special Servicer pursuant to the terms of this Agreement,
      which failure is not cured within two Business Days after such deposit or
      remittance was required to be made, provided, however, that if a Special
      Servicer fails to make any deposit or remittance so required to be made by
      such Special Servicer, and the applicable Master Servicer is required to
      make an Advance for such amount, such Special Servicer shall pay to the
      applicable Master Servicer for deposit into the applicable Collection
      Account, interest on such late deposit or remittance at the Prime Rate
      from and including the date such payment was due until the date such
      payment was actually made; or

            (iii) any failure on the part of a Master Servicer or Special
      Servicer to duly observe or perform in any material respect any other of
      the covenants or agreements on the part of such Master Servicer or Special
      Servicer, as the case may be, contained in this Agreement which continues
      unremedied for a period of 30 days (15 days in the case of a failure to
      pay the premium for any Insurance Policy required to be maintained
      hereunder) after the date on which written notice of such failure,
      requiring the same to be remedied, shall have been given to such Master
      Servicer or Special Servicer, as the case may be, by any other party
      hereto and, with respect to any Loan Combination, by any related Companion
      Loan Holder or Junior Loan Holder, as applicable, or to such Master
      Servicer or Special Servicer, as the case may be, the Depositor and the
      Trustee by the Holders of Certificates of any Class evidencing, as to such
      Class, Percentage Interests aggregating not less than 25%; provided,
      however, that, with respect to any such failure which is not curable
      within such 30-day period or 15 day period, as applicable, such Master
      Servicer or Special Servicer, as the case may be, shall have an additional
      cure period of 30 days to effect such cure so long as such Master Servicer
      or Special Servicer, as the case may be, has commenced to cure such
      failure within such initial 30-day period or 15 day period, as applicable,
      and has diligently pursued, and is continuing to pursue, a full cure; or

            (iv) any breach on the part of a Master Servicer or a Special
      Servicer of any representation or warranty contained in Section 3.23 or
      Section 3.24, as applicable, which materially and adversely affects the
      interests of any Class of Certificateholders and which continues
      unremedied for a period of 30 days after the date on which notice of such
      breach, requiring the same to be remedied, shall have been given to such
      Master Servicer or Special Servicer, as the case may be, by any other
      party hereto and, with respect to any Loan Combination, by any related
      Companion Loan Holder or Junior Loan Holder, as applicable, or to such
      Master Servicer or Special Servicer, as the case may be, the Depositor and
      the Trustee by the Holders of Certificates of any Class evidencing, as to
      such Class, Percentage Interests aggregating not less than 25%; provided,
      however, that with respect to any such breach which is not curable within
      such 30-day period, such Master Servicer or Special Servicer, as the case
      may be, shall have an additional cure period of 30 days to effect such
      cure so long as such Master Servicer or Special Servicer, as the case may
      be, has commenced to cure such breach within the initial 30-day period and
      has diligently pursued, and is continuing to pursue, a full cure; or

            (v) a decree or order of a court or agency or supervisory authority
      having jurisdiction in the premises in an involuntary case under any
      present or future federal or state bankruptcy, insolvency or similar law
      for the appointment of a conservator, receiver, liquidator, trustee or
      similar official in any bankruptcy, insolvency, readjustment of debt,
      marshaling of assets and liabilities or similar proceedings, or for the
      winding-up or liquidation of its affairs, shall have been entered against
      a Master Servicer or a Special Servicer and such decree or order shall
      have remained in force undischarged or unstayed for a period of 60 days;
      provided, however, that, with respect to any such decree or order that
      cannot be discharged, dismissed or stayed within such 60-day period, such
      Master Servicer or Special Servicer, as the case may be, shall have an
      additional period of 30 days to effect such discharge, dismissal or stay
      so long as it has commenced proceedings to have such decree or order
      dismissed, discharged or stayed within the initial 60-day period and has
      diligently pursued, and is continuing to pursue, such discharge, dismissal
      or stay;

            (vi) a Master Servicer or Special Servicer shall consent to the
      appointment of a conservator, receiver, liquidator, trustee or similar
      official in any bankruptcy, insolvency, readjustment of debt, marshaling
      of assets and liabilities or similar proceedings of or relating to such
      Master Servicer or Special Servicer or relating to all or substantially
      all of its property; or

            (vii) a Master Servicer or Special Servicer shall admit in writing
      its inability to pay its debts generally as they become due, file a
      petition to take advantage of any applicable bankruptcy, insolvency or
      reorganization statute, make an assignment for the benefit of its
      creditors, voluntarily suspend payment of its obligations or take any
      corporate action in furtherance of the foregoing; or

            (viii) such Master Servicer is no longer listed on S&P's Select
      Servicer List as a U.S. Commercial Mortgage Master Servicer (or, with
      respect to NCB, FSB, as a U.S. Commercial Mortgage Servicer), or such
      Special Servicer is no longer listed on S&P's Select Servicer List as a
      U.S. Commercial Mortgage Special Servicer, and that Master Servicer or
      Special Servicer, as the case may be, is not reinstated to such status
      within 60 days, provided that any such Master Servicer shall have 60 days
      after removal from such default within which it may sell the servicing
      rights to a party acceptable under Section 7.02 of this Agreement;

            (ix) a Servicing Officer of the Master Servicer or the Special
      Servicer obtains actual knowledge that Fitch has (a) qualified, downgraded
      or withdrawn any rating then assigned by it to any class of series 2006-C4
      certificates, or (b) placed any class of series 2006-C4 certificates on
      "watch status" in contemplation of possible rating downgrade or withdrawal
      (and that "watch status" placement has not have been withdrawn by it
      within 60 days of such Servicing Officer obtaining such knowledge), and,
      in either case, cited servicing concerns with the Master Servicer or the
      Special Servicer as the sole or a material factor in such rating action,
      provided that any such Master Servicer shall have 60 days after removal
      from such default within which it may sell the servicing rights to a party
      acceptable under Section 7.02 of this Agreement;

            (x) Moody's has (A) qualified, downgraded or withdrawn its rating or
      ratings of one or more Classes of Certificates, or (B) placed one or more
      Classes of Certificates on "watch status" in contemplation of possible
      rating downgrade or withdrawal (and such "watch status" placement shall
      not have been withdrawn by Moody's within 60 days of such placement), and,
      in case of either of clause (A) or (B), citing servicing concerns with the
      Master Servicer or Special Servicer as the sole or a material factor in
      such rating action; or

            (xi) the Master Servicer (or the Special Servicer), subject to
      certain cure periods as set forth herein, shall fail to deliver any
      Exchange Act reporting items required to be delivered by such servicer
      hereunder (other than the items required to be delivered by any
      sub-servicer) by the time required hereunder after any applicable notice
      or cure period.

            If any Event of Default shall have occurred with respect to a Master
Servicer or a Special Servicer and a Responsible Officer has actual knowledge of
such Event of Default, the Trustee shall provide notice of such Event of Default
to each affected Junior Loan Holder and Companion Loan Holder.

            (b) If any Event of Default with respect to a Master Servicer or
Special Servicer (in either case, for purposes of this Section 7.01(b), the
"Defaulting Party") shall occur and be continuing, then, and in each and every
such case, so long as such Event of Default shall not have been remedied, the
Trustee may, and at the written direction of the Holders of Certificates
entitled to at least 25% of the Voting Rights, shall, terminate, by notice in
writing to the Defaulting Party (a "Termination Notice"), with a copy of such
notice to the Depositor, the Certificate Registrar and, with respect to any Loan
Combination, each related Junior Loan Holder and Companion Loan Holder, all of
the rights and obligations of the Defaulting Party under this Agreement and in
and to the Loans and the Junior Loans and Companion Loan and the proceeds
thereof; provided, however, that the Defaulting Party shall be entitled to the
payment of any and all compensation, indemnities and reimbursements accrued by
or owing to it on or prior to the date of such termination, as well as such
similar amounts due to it thereafter, if any, including (subject to reduction in
accordance with Section 3.11(a)) with respect to the related Excess Servicing
Strip and Assignable Primary Servicing Fees (in the case of a Master Servicer),
as provided for under this Agreement for services rendered and expenses
incurred.

            From and after the receipt by the Defaulting Party of such written
notice, all authority and power of the Defaulting Party under this Agreement,
whether with respect to the Certificates (other than as a Holder of any
Certificate) or the Loans, the Companion Loans, the Junior Loans or otherwise,
shall pass to and be vested in the Trustee pursuant to and under this Section,
and, without limitation, the Trustee is hereby authorized and empowered to
execute and deliver, on behalf of and at the expense of the Defaulting Party, as
attorney-in-fact or otherwise, any and all documents and other instruments, and
to do or accomplish all other acts or things necessary or appropriate to effect
the purposes of such notice of termination, whether to complete the transfer and
endorsement or assignment of the Loans and the Junior Loans and related
documents, or otherwise.

            Each Master Servicer and each Special Servicer agrees that if it is
terminated pursuant to this Section 7.01(b), it shall promptly (and in any event
no later than 20 Business Days after its receipt of the notice of termination)
provide the Trustee with all documents and records requested by it to enable the
Trustee to assume such Master Servicer's or Special Servicer's, as the case may
be, functions hereunder, and shall reasonably cooperate with the Trustee in
effecting the termination of such Master Servicer's or Special Servicer's, as
the case may be, responsibilities and rights hereunder, including, without
limitation, the transfer within five Business Days to the Trustee for
administration by it of all cash amounts which shall at the time be or should
have been credited by such Master Servicer to the applicable Collection Account
or any Junior Loan Custodial Account, any Companion Loan Custodial Account,
Servicing Account, Cash Collateral Account or Lock-Box Account or by such
Special Servicer to the applicable REO Account, as the case may be, or
thereafter be received with respect to any Loan, any Junior Loan or any REO
Property (provided, however, that such Master Servicer or Special Servicer, as
the case may be, shall, if terminated pursuant to this Section 7.01(b), continue
to be entitled to receive all amounts accrued or owing to it under this
Agreement on or prior to the date of such termination, whether in respect of
Advances (in the case of a terminated Master Servicer) or otherwise, as well as
amounts due to it thereafter, if any, and it and its Affiliates, directors,
partners, members, managers, shareholders, officers, employees and agents shall
continue to be entitled to the benefits of Section 6.03 notwithstanding any such
termination).

            (c) Subject to Section 3.32(h), the Holder or Holders of
Certificates representing more than 50% of the Class Principal Balance of the
Controlling Class shall, subject to the provisions of the following paragraph,
be entitled to terminate the rights and obligations of either Special Servicer
under this Agreement, with or without cause, upon 10 Business Days' notice to
the Master Servicers, the Special Servicers and the Trustee, and to appoint a
successor Special Servicer; provided, however, that (i) such successor shall
meet the requirements set forth in Section 7.02, (ii) as evidenced in writing by
each of the Rating Agencies (such writing to be obtained by and at the expense
of such Holders), the proposed replacement of a Special Servicer shall not, in
and of itself, result in a downgrading, withdrawal or qualification of the
then-current ratings provided by the Rating Agencies with respect to any Class
of then outstanding Certificates that is rated, and (iii) the Trustee shall have
received (A) an Acknowledgment of Proposed Special Servicer in the form attached
hereto as Exhibit R, executed by the Person designated to be the successor to
such terminated Special Servicer, and (B) an Opinion of Counsel (which shall not
be an expense of the Trustee or the Trust) substantially to the effect that (1)
the removal of such terminated Special Servicer and/or the appointment of the
Person designated to serve as successor thereto is in compliance with this
Section 7.01(c), (2) such designated Person is duly organized, validly existing
and in good standing under the laws of the jurisdiction of its organization, (3)
the Acknowledgment of Proposed Special Servicer, the form of which is attached
hereto as Exhibit I, has been duly authorized, executed and delivered by such
designated Person and (4) upon the execution and delivery of the Acknowledgment
of Proposed Special Servicer, such designated Person shall be bound by the terms
of this Agreement and, subject to customary bankruptcy and insolvency exceptions
and customary equity exceptions, this Agreement shall be enforceable against
such designated Person in accordance with its terms. Any Special Servicer
terminated pursuant to this Section 7.01(c) shall be deemed to have been so
terminated simultaneously with the designated successor's becoming such Special
Servicer hereunder. Such terminated Special Servicer shall take all reasonable
actions necessary to promptly transfer its rights and obligations hereunder to
its successor.

            No penalty or fee shall be payable to a Special Servicer with
respect to any termination pursuant to this Section 7.01(c). Any expenses of the
trust as a result of any termination pursuant to this Section 7.01(c) shall be
paid by the Persons who effected such termination, if the termination was
without cause, and otherwise by the terminated Special Servicer.

            If the Controlling Class Certificates are held in book-entry form,
then the related Certificate Owners with beneficial interests in Controlling
Class Certificates representing more than 50% of the Class Principal Balance of
the Controlling Class, may exercise the same rights set forth above in this
Section 7.01(c) to which they would otherwise be entitled if they were
Certificateholders.

            Section 7.02 Trustee to Act; Appointment of Successor.

            On and after the time a Master Servicer or Special Servicer, as the
case may be, either resigns pursuant to clause (a) of the first sentence of
Section 6.04(a) or receives a notice of termination for cause pursuant to
Section 7.01(b), and provided that no acceptable successor has been appointed in
accordance with the requirements of this Agreement, the Trustee shall be and
become the successor to such Master Servicer or Special Servicer, as the case
may be, in all respects in its capacity as a Master Servicer or Special
Servicer, as applicable, under this Agreement and the transactions set forth or
provided for herein and shall be subject to all the responsibilities, duties,
liabilities and limitations on liability relating thereto and that arise
thereafter placed on or for the benefit of such Master Servicer or Special
Servicer by the terms and provisions hereof; provided, however, that any failure
to perform such duties or responsibilities caused by the terminated party's
failure under Section 7.01 to provide information or moneys required hereunder
shall not be considered a default by such successor hereunder.

            The appointment of a successor Master Servicer shall not affect any
liability of the predecessor Master Servicer which may have arisen prior to its
termination as a Master Servicer, and the appointment of a successor Special
Servicer shall not affect any liability of the predecessor Special Servicer
which may have arisen prior to its termination as a Special Servicer. The
Trustee in its capacity as successor to a Master Servicer or Special Servicer
shall not be liable for any of the representations and warranties of such Master
Servicer or Special Servicer, as the case may be, herein or in any related
document or agreement, for any acts or omissions of the predecessor Master
Servicer or Special Servicer, as the case may be, or for any losses incurred by
the predecessor Master Servicer or Special Servicer, as the case may be,
pursuant to Section 3.06 hereunder, nor shall the Trustee be required to
purchase any Loan hereunder.

            As compensation therefor, the Trustee as a successor Master Servicer
shall be entitled to all Master Servicing Fees and other compensation relating
to the applicable Loans, Junior Loans and REO Loans to which the predecessor
Master Servicer would have been entitled to if such Master Servicer had
continued to act hereunder, including but not limited to any income or other
benefit from any Permitted Investment of funds in a Master Servicer Account
maintained thereby pursuant to Section 3.06), and as successor to a Special
Servicer shall be entitled to the Special Servicing Fees to which the
predecessor Special Servicer would have been entitled if such Special Servicer
had continued to act hereunder. Notwithstanding the foregoing, the Trustee shall
not (subject to Section 3.11(a)) be entitled to receive any Excess Servicing
Strip or Assignable Primary Servicing Fees. If the Trustee succeeds to the
capacity of a Master Servicer or Special Servicer hereunder, the Trustee shall
be afforded the same standard of care and liability hereunder as such Master
Servicer or Special Servicer, as the case may be, notwithstanding anything in
Section 8.01 to the contrary, but only with respect to actions taken by it in
its role as a successor Master Servicer or successor Special Servicer as the
case may be, and not with respect to its role as Trustee hereunder.

            Notwithstanding the above, the Trustee may, if it shall be unwilling
to act as successor to a Master Servicer or Special Servicer, as the case may
be, or shall, if it is unable to so act or if the Trustee is not approved as a
servicer or special servicer, as applicable, by each Rating Agency, or if the
Holders of Certificates entitled to at least 51% of the Voting Rights so request
in writing to the Trustee, promptly appoint, or petition a court of competent
jurisdiction to appoint, any established mortgage loan servicing institution
which meets the criteria set forth herein, as the successor hereunder to the
departing Master Servicer or Special Servicer, as applicable, in the assumption
of all or any part of the responsibilities, duties or liabilities of such Master
Servicer or Special Servicer, as the case may be, hereunder. No appointment of a
successor to a Master Servicer or Special Servicer under this Section 7.02 shall
be effective until (i) each of the Rating Agencies shall have confirmed in
writing that its then-current rating (if any) of each Class of Certificates will
not be qualified (as applicable), downgraded or withdrawn by reason thereof and
(ii) the assumption in writing by the successor to such Master Servicer or
Special Servicer, as the case may be, of all the responsibilities, duties and
liabilities as a Master Servicer or Special Servicer, as the case may be,
hereunder that arise thereafter. Pending the appointment of a successor to a
Master Servicer or Special Servicer hereunder, unless the Trustee shall be
prohibited by law from so acting, the Trustee shall act in such capacity as
hereinabove provided.

            In connection with such appointment and assumption of a successor to
a Master Servicer or Special Servicer as described herein, subject to Section
3.11(a), the Trustee may make such arrangements for the compensation of such
successor out of payments on Loans as it and such successor shall agree;
provided, however, that no such compensation with respect to a successor Master
Servicer or successor Special Servicer, as the case may be, shall be in excess
of that permitted the terminated Master Servicer or Special Servicer, as the
case may be, hereunder; provided, further, that if no successor can be obtained
for such compensation, then, subject to approval by the Rating Agencies,
additional amounts shall be paid to such successor and such amounts in excess of
that permitted the terminated Master Servicer or Special Servicer, as the case
may be, shall be treated as Additional Trust Fund Expenses. The Trustee, the
Master Servicers, the Special Servicers and such successor shall take such
action, consistent with this Agreement, as shall be necessary to effectuate any
such succession. Any reasonable costs and expenses associated with the transfer
of the servicing function (other than with respect to a termination without
cause) under this Agreement shall be borne by the predecessor Master Servicer or
Special Servicer.

            Section 7.03 Notification to Certificateholders.

            (a) Upon any resignation of a Master Servicer or Special Servicer
pursuant to Section 6.04, any termination of a Master Servicer or Special
Servicer pursuant to Section 7.01 or any appointment of a successor to a Master
Servicer or Special Servicer pursuant to Section 7.02, the Certificate
Administrator shall give prompt written notice thereof to Certificateholders at
their respective addresses appearing in the Certificate Register, to the Swap
Counterparty and, to the extent that a Responsible Officer of the Certificate
Administrator has actual knowledge of the identities thereof, to each affected
Junior Loan Holder, if any.

            (b) Not later than the later of (i) 60 days after the occurrence of
any event which constitutes or, with notice or lapse of time or both, would
constitute an Event of Default and (ii) five days after the Trustee would be
deemed to have notice of the occurrence of such an event in accordance with
Section 8.02(vii) a Responsible Officer of the Trustee shall transmit by mail to
the Depositor, all Certificateholders, to the Swap Counterparty and, to the
extent that a Responsible Officer of the Trustee has actual knowledge of the
identities thereof, each affected Junior Loan Holder, if any, notice of such
occurrence, unless such default shall have been cured.

            Section 7.04 Waiver of Events of Default.

            The Holders of Certificates representing at least 66(2)/3% of the
Voting Rights allocated to each Class of Certificates affected by any Event of
Default hereunder may waive such Event of Default within 20 days of the receipt
of notice from the Trustee of the occurrence of such Event of Default; provided,
however, that an Event of Default under clause (i) or (ii) of Section 7.01(a)
may only be waived by 100% of the Certificateholders of the affected Classes and
the Trustee. Upon any such waiver of an Event of Default and reimbursement by
the party requesting such waiver to the Trustee of all costs and expenses
incurred by it in connection with such Event of Default and prior to its waiver,
such Event of Default shall cease to exist and shall be deemed to have been
remedied for every purpose hereunder. No such waiver shall extend to any
subsequent or other Event of Default or impair any right consequent thereon
except to the extent expressly so waived. Notwithstanding any other provisions
of this Agreement, for purposes of waiving any Event of Default pursuant to this
Section 7.04, Certificates registered in the name of the Depositor or any
Affiliate of the Depositor shall be entitled to the same Voting Rights with
respect to the matters described above as they would if any other Person held
such Certificates.

            Section 7.05 Trustee Advances.

            If a Master Servicer fails to fulfill its obligations hereunder to
make any Advances, the Trustee shall perform such obligations (x) within one
Business Day of such failure (a failure only occurring after the Master
Servicer's cure period under Section 7.01(a)(i)(C) has expired) by such Master
Servicer with respect to Servicing Advances to the extent a Responsible Officer
of the Trustee has been notified in writing or a Responsible Officer of the
Trustee otherwise has actual knowledge of such failure with respect to such
Servicing Advances and (y) by 1:00 p.m., New York City time, on the related
Distribution Date with respect to P&I Advances. With respect to any such Advance
made by the Trustee, the Trustee shall succeed to all of the applicable Master
Servicer's rights with respect to Advances hereunder, including, without
limitation, such Master Servicer's rights of reimbursement and interest on each
Advance at the Reimbursement Rate, and rights to determine that a proposed
Advance is a Nonrecoverable P&I Advance or Nonrecoverable Servicing Advance, as
the case may be; provided, however, that if Advances made by both the Trustee
and a Master Servicer shall at any time be outstanding, or any interest on any
Advance shall be accrued and unpaid, all amounts available to repay such
Advances and the interest thereon hereunder shall be applied entirely to the
Advances outstanding to the Trustee, until such Advances shall have been repaid
in full, together with all interest accrued thereon, prior to reimbursement of
the applicable Master Servicer for such Advances. The Trustee shall be entitled
to conclusively rely on any notice given with respect to a Nonrecoverable
Advance hereunder.

                                  ARTICLE VIII

            CONCERNING THE TRUSTEE AND THE CERTIFICATE ADMINISTRATOR

            Section 8.01 Duties of Trustee and Certificate Administrator.

            (a) Each of the Trustee and the Certificate Administrator, prior to
the occurrence of an Event of Default and after the curing or waiving of all
Events of Default which may have occurred, undertakes to perform such duties and
only such duties as are specifically set forth in this Agreement. If an Event of
Default occurs and is continuing, then (subject to Section 8.02(vii) below) the
Trustee and the Certificate Administrator shall exercise such of the rights and
powers vested in it by this Agreement, and use the same degree of care and skill
in their exercise as a prudent man would exercise or use under the circumstances
in the conduct of his own affairs. Any permissive right of the Trustee or the
Certificate Administrator contained in this Agreement shall not be construed as
a duty.

            (b) The Trustee and the Certificate Administrator, upon receipt of
all resolutions, certificates, statements, opinions, reports, documents, orders
or other instruments furnished to the Trustee and the Certificate Administrator
which are specifically required to be furnished pursuant to any provision of
this Agreement (other than the Mortgage Files, the review of which is
specifically governed by the terms of Article II), shall examine them to
determine whether they conform to the requirements of this Agreement. If any
such instrument is found not to conform to the requirements of this Agreement in
a material manner, the Trustee or the Certificate Administrator, as applicable,
shall make a request to the responsible party to have the instrument corrected.
The Trustee and the Certificate Administrator shall not be responsible for the
accuracy or content of any resolution, certificate, statement, opinion, report,
document, order or other instrument furnished by the Depositor, any Master
Servicer or either Special Servicer, and accepted by the Trustee and the
Certificate Administrator in good faith, pursuant to this Agreement.

            (c) No provision of this Agreement shall be construed to relieve the
Trustee or the Certificate Administrator from liability for its own negligent
action, its own negligent failure to act or its own willful misconduct;
provided, however, that:

            (i) The Certificate Administrator's, and prior to the occurrence of
      an Event of Default, and after the curing of all such Events of Default
      which may have occurred, the Trustee's, duties and obligations shall be
      determined solely by the express provisions of this Agreement, and the
      Trustee and the Certificate Administrator shall not be liable except for
      the performance of such duties and obligations as are specifically set
      forth in this Agreement, no implied covenants or obligations shall be read
      into this Agreement against the Trustee or the Certificate Administrator
      and, in the absence of bad faith on the part of the Trustee or the
      Certificate Administrator, the Trustee may conclusively rely, as to the
      truth of the statements and the correctness of the opinions expressed
      therein, upon any certificates or opinions furnished to the Trustee and
      the Certificate Administrator and conforming to the requirements of this
      Agreement;

            (ii) Neither the Certificate Administrator nor the Trustee shall be
      liable for an error of judgment made in good faith by a Responsible
      Officer or Responsible Officers of the Trustee or the Certificate
      Administrator, as applicable, unless it shall be proved that the Trustee
      or the Certificate Administrator, as applicable, was negligent in
      ascertaining the pertinent facts;

            (iii) Neither the Certificate Administrator nor the Trustee shall be
      liable with respect to any action taken, suffered or omitted to be taken
      by it in good faith in accordance with the direction of Holders of
      Certificates entitled to at least 25% of the Voting Rights relating to the
      time, method and place of conducting any proceeding for any remedy
      available to the Trustee or the Certificate Administrator, or exercising
      any trust or power conferred upon the Trustee or the Certificate
      Administrator, under this Agreement (unless a higher percentage of Voting
      Rights is required for such action); and

            (iv) Subject to the other provisions of this Agreement and without
      limiting the generality of this Section 8.01, the Trustee shall have no
      duty except in the capacity as a successor Master Servicer or successor
      Special Servicer (A) to see to any recording, filing or depositing of this
      Agreement or any agreement referred to herein or any financing statement
      or continuation statement evidencing a security interest, or to see to the
      maintenance of any such recording or filing or depositing or to any
      re-recording, refiling or redepositing of any thereof, (B) to see to any
      insurance, and (C) to confirm or verify the contents of any reports or
      certificates of any Master Servicer or either Special Servicer delivered
      to the Trustee pursuant to this Agreement reasonably believed by the
      Trustee to be genuine and to have been signed or presented by the proper
      party or parties.

            Section 8.02 Certain Matters Affecting the Trustee and the
Certificate Administrator.

            Except as otherwise provided in Section 8.01:

            (i) The Trustee and the Certificate Administrator may rely upon and
      shall be protected in acting or refraining from acting upon any
      resolution, Officer's Certificate, certificate of auditors or any other
      certificate, statement, instrument, opinion, report, notice, request,
      consent, order, Appraisal, bond or other paper or document reasonably
      believed by it to be genuine and to have been signed or presented by the
      proper party or parties;

            (ii) The Trustee and the Certificate Administrator may consult with
      counsel and the written advice of such counsel or any Opinion of Counsel
      shall be full and complete authorization and protection in respect of any
      action taken or suffered or omitted by it hereunder in good faith and in
      accordance therewith;

            (iii) Neither the Trustee nor the Certificate Administrator shall be
      under any obligation to exercise any of the trusts or powers vested in it
      by this Agreement or to make any investigation of matters arising
      hereunder or to institute, conduct or defend any litigation hereunder or
      in relation hereto at the request, order or direction of any of the
      Certificateholders, pursuant to the provisions of this Agreement, unless,
      in the Trustee's or the Certificate Administrator's reasonable opinion,
      such Certificateholders shall have offered to the Trustee or the
      Certificate Administrator reasonable security or indemnity against the
      costs, expenses and liabilities which may be incurred therein or thereby;
      the Certificate Administrator shall not be under any obligation to take
      any action to enforce the rights of the Trust Fund under the Swap
      Agreement unless it expects, in its sole discretion, that the costs and
      expenses of such action(s) will be reimbursed by the Swap Counterparty or
      any other party or it has received an indemnity or assurance of payment
      satisfactory to the Certificate Administrator from the Holders of the
      Class A-4FL Certificates; the Trustee or the Certificate Administrator
      shall not be required to expend or risk its own funds or otherwise incur
      any financial liability in the performance of any of its duties hereunder,
      or in the exercise of any of its rights or powers, if it shall have
      reasonable grounds for believing that repayment of such funds or adequate
      indemnity against such risk or liability is not reasonably assured to it;
      nothing contained herein shall, however, relieve the Trustee or the
      Certificate Administrator of the obligation, upon the occurrence of an
      Event of Default which has not been cured, to exercise such of the rights
      and powers vested in it by this Agreement, and to use the same degree of
      care and skill in their exercise as a prudent man would exercise or use
      under the circumstances in the conduct of his own affairs;

            (iv) The Trustee or the Certificate Administrator shall not be
      liable for any action reasonably taken, suffered or omitted by it in good
      faith and believed by it to be authorized or within the discretion or
      rights or powers conferred upon it by this Agreement;

            (v) Prior to the occurrence of an Event of Default hereunder and
      after the curing of all Events of Default which may have occurred, the
      Trustee or the Certificate Administrator shall not be bound to make any
      investigation into the facts or matters stated in any resolution,
      certificate, statement, instrument, opinion, report, notice, request,
      consent, order, approval, bond or other paper or document, unless
      requested in writing to do so by Holders of Certificates entitled to at
      least 50% of the Voting Rights; provided, however, that if the payment
      within a reasonable time to the Trustee or the Certificate Administrator
      of the costs, expenses or liabilities likely to be incurred by it in the
      making of such investigation is, in the opinion of the Trustee or the
      Certificate Administrator, not reasonably assured to the Trustee or the
      Certificate Administrator by the security afforded to it by the terms of
      this Agreement, the Trustee may require reasonable indemnity to its
      satisfaction from such Holders against such cost, expense or liability as
      a condition to taking any such action; The reasonable expense of every
      such reasonable examination shall be paid by the applicable Master
      Servicer or, if paid by the Trustee, shall be repaid by the applicable
      Master Servicer upon demand;

            (vi) The Trustee and the Certificate Administrator may execute any
      of the trusts or powers hereunder or perform any duties hereunder either
      directly or by or through agents or attorneys; provided, however, that the
      appointment of such agents or attorneys shall not relieve the Trustee or
      the Certificate Administrator of its duties or obligations hereunder;
      provided, further, that neither the Trustee nor the Certificate
      Administrator may perform any duties hereunder through any Person that is
      a Prohibited Party;

            (vii) For all purposes under this Agreement, the Trustee and the
      Certificate Administrator shall not be required to take any action with
      respect to, or be deemed to have notice or knowledge of any default or
      Event of Default unless a Responsible Officer of the Trustee or the
      Certificate Administrator has actual knowledge thereof or shall have
      received written notice thereof. In the absence of receipt of such notice
      and such actual knowledge otherwise obtained, the Trustee and the
      Certificate Administrator may conclusively assume that there is no default
      or Event of Default;

            (viii) The Trustee and the Certificate Administrator shall not be
      responsible for any act or omission of the any Master Servicer, either
      Special Servicer or the Directing Certificateholder (unless the Trustee is
      acting as a Master Servicer, a Special Servicer or the Directing
      Certificateholder, as the case may be) or of the Depositor; and

            (ix) The Trustee and the Certificate Administrator shall not be
      required to give any bond or surety in respect of the execution of the
      Trust Fund created hereby or the power granted hereunder.

            Section 8.03 Trustee and Certificate Administrator Not Liable for
Validity or Sufficiency of Certificates or Loans.

            The recitals contained herein and in the Certificates, (i) other
than the acknowledgments and expressed intentions of the Trustee in Sections
2.01, 2.02, 2.04 and 10.07 and the representations and warranties of the Trustee
in Section 8.13, and (ii) other than the representations of the Certificate
Administrator in Section 8.14, shall be taken as the statements of the
Depositor, the applicable Master Servicer or the applicable Special Servicer, as
the case may be, and the Trustee and the Certificate Administrator assume no
responsibility for their correctness. The Trustee and the Certificate
Administrator do not make any representations as to the validity or sufficiency
of this Agreement or of any Certificate or of any Loan or related document. The
Trustee and the Certificate Administrator shall not be accountable for the use
or application by the Depositor of any of the Certificates issued to it or of
the proceeds of such Certificates, or for the use or application of any funds
paid to the Depositor in respect of the assignment of the Loans to the Trust
Fund, or any funds deposited in or withdrawn from any Collection Account or any
other account by or on behalf of the Depositor, any Master Servicer or either
Special Servicer. The Trustee and the Certificate Administrator shall not be
responsible for the accuracy or content of any resolution, certificate,
statement, opinion, report, document, order or other instrument furnished by the
Depositor, any Master Servicer or either Special Servicer, and accepted by the
Trustee or the Certificate Administrator, in good faith, pursuant to this
Agreement.

            Section 8.04 Trustee and Certificate Administrator May Own
Certificates.

            The Trustee and the Certificate Administrator, each in its
individual capacity and not as Trustee and Certificate Administrator,
respectively, may become the owner or pledgee of Certificates, and may deal with
the Depositor, any Master Servicer, either Special Servicer, the Initial
Purchaser and the Underwriters in banking transactions, with the same rights it
would have if it were not Trustee.

            Section 8.05 Fees and Expenses of Trustee and Certificate
Administrator; Reimbursements and Other Payments to Trustee.

            (a) As compensation for the performance of its duties, the Trustee
shall be paid the Trustee Fee (a portion of which shall be paid to the
Certificate Administrator), equal to one month's interest at the Trustee Fee
Rate on the Stated Principal Balance of each Loan and REO Loan in the Mortgage
Pool, which shall cover recurring and otherwise reasonably anticipated expenses
of the Trustee. With respect to each Loan and REO Loan in the Mortgage Pool, the
Trustee Fee shall accrue from time to time on the same interest accrual basis
(i.e., either an Actual/360 Basis or a 30/360 Basis, as applicable) as is
applicable to such Loan or REO Loan, as the case may be. The Trustee Fee (which
shall not be limited to any provision of law in regard to the compensation of a
trustee of an express trust) shall constitute the Trustee's sole form of
compensation for all services rendered by it in the execution of the trusts
hereby created and in the exercise and performance of any of the powers and
duties of the Trustee hereunder.

            (b) The Trustee and the Certificate Administrator shall be paid or
reimbursed by the Trust Fund upon its request for all reasonable expenses and
disbursements incurred by the Trustee and the Certificate Administrator pursuant
to and in accordance with any of the provisions of this Agreement (including the
reasonable compensation and the expenses and disbursements of its counsel and of
all persons not regularly in its employ) to the extent such payments are
"unanticipated expenses incurred by the REMIC" within the meaning of Treasury
Regulations Section 1.860G-1(b)(iii) except any such expense, disbursement or
advance as may arise from its negligence, bad faith or willful misconduct;
provided, however, that, subject to Section 8.02(iii), neither the Trustee nor
the Certificate Administrator shall refuse to perform any of its duties
hereunder solely as a result of the failure to be paid the Trustee Fee or the
Trustee's expenses or any sums due the Certificate Administrator.
Notwithstanding the foregoing, this Section 8.05(b) shall not apply to the
reimbursement of Advances or the payment of interest thereof, it being
acknowledged that such reimbursement and/or payment is otherwise expressly
provided for herein.

            Section 8.06 Eligibility Requirements for Trustee and the
Certificate Administrator.

            Each of the Certificate Administrator and the Trustee hereunder
shall at all times be, and will be required to resign if it fails to be, (i) a
corporation, national bank, trust company or national banking association,
organized and doing business under the laws of any state or the United States of
America or the District of Columbia, authorized under such laws to exercise
corporate trust powers and to accept the trust conferred under this Agreement,
having a combined capital and surplus of at least $50,000,000 and subject to
supervision or examination by federal or state authority and shall not be an
Affiliate of the Depositor, any Master Servicer or either Special Servicer
(except during any period when the Trustee is acting as, or has become successor
to, a Master Servicer or Special Servicer, as the case may be, pursuant to
Section 7.02), (ii) an institution insured by the Federal Deposit Insurance
Corporation and (iii) an institution whose long-term senior unsecured debt is
rated "AA-" or higher by S&P (or "A+" by S&P, if such institution's short-term
unsecured debt is rated "A-1" or higher by S&P), "A+" by Fitch and "Aa3" by
Moody's (or such entity as would not, as evidenced in writing by such Rating
Agency, result in the qualification (as applicable), downgrading or withdrawal
of any of the then-current ratings then assigned thereby to the Certificates).

            If such corporation, national bank, trust company or national
banking association publishes reports of condition at least annually, pursuant
to law or to the requirements of the aforesaid supervising or examining
authority, then for the purposes of this Section the combined capital and
surplus of such corporation, national bank, trust company or national banking
association shall be deemed to be its combined capital and surplus as set forth
in its most recent report of condition so published. In the event the place of
business from which the Certificate Administrator administers the Trust REMICs
is in a state or local jurisdiction that imposes a tax on the Trust Fund on the
net income of a REMIC (other than a tax corresponding to a tax imposed under the
REMIC Provisions), the Certificate Administrator shall elect either to (i)
resign immediately in the manner and with the effect specified in Section 8.07,
(ii) pay such tax at no expense to the Trust Fund or (iii) administer the Trust
REMICs from a state and local jurisdiction that does not impose such a tax.

            Section 8.07 Resignation and Removal of the Trustee or Certificate
Administrator.

            (a) The Trustee or the Certificate Administrator may at any time
resign and be discharged from the trusts hereby created by giving written notice
thereof to the Depositor, the Master Servicers, the Special Servicers and all
Certificateholders. Upon receiving such notice of resignation, the Depositor
shall promptly appoint a successor trustee acceptable to the Master Servicers,
in their reasonable discretion, and the Rating Agencies (as evidenced in writing
by such Rating Agency that such appointment would not result in the
qualification (as applicable), downgrading or withdrawal of any of the
then-current ratings then assigned thereby to the Certificates) by written
instrument, in duplicate, which instrument shall be delivered to the resigning
Trustee and to the successor trustee. A copy of such instrument shall be
delivered to the Master Servicers, the Special Servicers, the
Certificateholders, and with respect to any Loan Combination, the related
Companion Loan Holder or Junior Loan Holders, as applicable, by the Depositor.
Upon the notice of resignation from the Certificate Administrator, the Trustee
shall appoint a successor Certificate Administrator, the appointment of which is
subject to Section 8.06. If no successor trustee or successor certificate
administrator shall have been so appointed and have accepted appointment within
30 days after the giving of such notice of resignation, the resigning Trustee or
Certificate Administrator may petition any court of competent jurisdiction for
the appointment of a successor trustee or successor certificate administrator.
The resigning Trustee or Certificate Administrator shall be responsible for the
payment of all reasonable expenses incurred in connection with such resignation
and discharge and the appointment of a successor trustee or successor
certificate administrator.

            (b) If at any time the Trustee or the Certificate Administrator
shall cease to be eligible in accordance with the provisions of Section 8.06 or
if the Depositor has received notice from the Rating Agencies that failure to
remove the Trustee or the Certificate Administrator will result in a downgrade
or withdrawal of the then-current rating assigned to any Class of Certificates,
and shall fail to resign after written request therefor by the Depositor or any
of the Master Servicers, or if at any time the Trustee or the Certificate
Administrator shall become incapable of acting, or shall be adjudged bankrupt or
insolvent, or a receiver of the Trustee or the Certificate Administrator or of
its property shall be appointed, or any public officer shall take charge or
control of the Trustee or the Certificate Administrator or of its property or
affairs for the purpose of rehabilitation, conservation or liquidation, then the
Depositor may remove the Trustee or the Certificate Administrator and appoint a
successor trustee or successor certificate administrator acceptable to the
Master Servicers and the Rating Agencies (as evidenced in writing by such Rating
Agency that such removal and appointment would not result in the qualification
(as applicable), downgrading or withdrawal of any of the then-current ratings
then assigned thereby to the Certificates), by written instrument, in duplicate,
which instrument shall be delivered to the Trustee or the Certificate
Administrator so removed and to the successor trustee or successor certificate
administrator. A copy of such instrument shall be delivered to the Master
Servicers, the Special Servicers, the Swap Counterparty, the Certificateholders,
and with respect to any Loan Combination, the related Companion Loan Holder or
Junior Loan Holders, as applicable, by the Depositor.

            (c) The Holders of Certificates entitled to at least 51% of the
Voting Rights may at any time remove the Trustee or the Certificate
Administrator and appoint a successor trustee or successor certificate
administrator by written instrument or instruments, in triplicate, signed by
such Holders or their attorneys-in-fact duly authorized, one complete set of
which instruments shall be delivered to Master Servicer No. 1, one complete set
to the Trustee or Certificate Administrator so removed and one complete set to
the successor so appointed. A copy of such instrument shall be delivered to the
Depositor, the Special Servicers and the remaining Master Servicers and
Certificateholders by Master Servicer No. 1. The Trustee or the Certificate
Administrator shall be reimbursed for all costs and expenses incurred by it in
connection with such removal within 30 days of demand therefor from amounts on
deposit in the Distribution Account (provided the Trustee or the Certificate
Administrator is removed without cause).

            Any resignation or removal of the Trustee or the Certificate
Administrator and appointment of a successor Trustee or Certificate
Administrator pursuant to any of the provisions of this Section 8.07 shall not
become effective until acceptance of appointment by the successor Trustee or
Certificate Administrator as provided in Section 8.08.

            Within 30 days following any succession of the Trustee or
Certificate Administrator under this Agreement, the predecessor Trustee or
predecessor Certificate Administrator shall be paid all accrued and unpaid
compensation and reimbursement as provided for under this Agreement for services
rendered and expenses incurred. No Trustee or Certificate Administrator shall be
liable for any action or omission of any successor Trustee or Certificate
Administrator.

            Section 8.08 Successor Trustee or Certificate Administrator.

            (a) Any successor Trustee and any successor Certificate
Administrator appointed as provided in Section 8.07 shall execute, acknowledge
and deliver to the Depositor, the Master Servicers, the Special Servicers and to
its predecessor Trustee or predecessor Certificate Administrator, an instrument
accepting such appointment hereunder, and thereupon the resignation or removal
of the predecessor Trustee or predecessor Certificate Administrator, shall
become effective and such successor Trustee or successor Certificate
Administrator, without any further act, deed or conveyance, shall become fully
vested with all the rights, powers, duties and obligations of its predecessor
hereunder, with the like effect as if originally named as Trustee or Certificate
Administrator herein. The predecessor Trustee or predecessor Certificate
Administrator shall deliver to the successor trustee or successor certificate
administrator all Mortgage Files and related documents and statements held by it
hereunder, and the Depositor, the Master Servicers, the Special Servicers and
the predecessor Trustee or predecessor Certificate Administrator shall execute
and deliver such instruments and do such other things as may reasonably be
required to more fully and certainly vest and confirm in the successor Trustee
or successor Certificate Administrator all such rights, powers, duties and
obligations, and to enable the successor Trustee or successor Certificate
Administrator to perform its obligations hereunder.

            (b) No successor Trustee or successor Certificate Administrator
shall accept appointment as provided in this Section 8.08 unless at the time of
such acceptance such successor trustee is or shall be eligible under the
provisions of Section 8.06 and is not a Prohibited Party.

            (c) Upon acceptance of appointment by a successor Trustee or
successor Certificate Administrator as provided in this Section 8.08, Master
Servicer No. 1 shall mail notice of the succession of such Trustee or
Certificate Administrator hereunder to the Depositor, the Special Servicers, the
remaining Master Servicers and the Certificateholders. Each Master Servicer
shall mail a copy of such notice to each holder of a Junior Loan as to which
such Master Servicer is the applicable Master Servicer and to any Companion Loan
Holder. If any Master Servicers shall fail to so mail such notice or a copy
thereof, as applicable, within 10 days (or, in the case of a mailing to a Junior
Loan Holder, 20 days) after acceptance of appointment by the successor Trustee
or Certificate Administrator, such successor Trustee or successor Certificate
Administrator shall cause such notice to be mailed at the expense of the
defaulting Master Servicer.

            Section 8.09 Merger or Consolidation of Trustee or Certificate
Administrator.

            Any Person into which the Trustee or Certificate Administrator may
be merged or converted or with which it may be consolidated or any Person
resulting from any merger, conversion or consolidation to which the Trustee or
Certificate Administrator shall be a party, or any Person succeeding to all or
substantially all of the corporate trust business of the Trustee or Certificate
Administrator, shall be the successor of the Trustee, hereunder (provided that,
in the case of the Trustee or Certificate Administrator, as applicable, such
successor Person shall be eligible under the provisions of Section 8.06, without
the execution or filing of any paper or any further act on the part of any of
the parties hereto), anything herein to the contrary notwithstanding.

            Section 8.10 Appointment of Co-Trustee or Separate Trustee.

            (a) Notwithstanding any other provisions hereof, at any time, for
the purpose of meeting any legal requirements of any jurisdiction in which any
part of the Trust Fund or property securing the same may at the time be located,
the Master Servicers and the Trustee acting jointly shall have the power and
shall execute and deliver all instruments to appoint one or more Persons
approved by the Trustee to act as co-trustee or co-trustees, jointly with the
Trustee, or separate trustee or separate trustees, of all or any part of the
Trust Fund, and to vest in such Person or Persons, in such capacity, such title
to the Trust Fund, or any part thereof, and, subject to the other provisions of
this Section 8.10, such powers, duties, obligations, rights and trusts as Master
Servicers and the Trustee may consider necessary or desirable. If a Master
Servicer shall not have joined in such appointment within 15 days after the
receipt by it or them, as applicable, of a request to do so, or in case an Event
of Default shall have occurred and be continuing, the Trustee (together with the
joining Master Servicer(s) or, if none of the Master Servicers have so joined,
alone) shall have the power to make such appointment. No co-trustee or separate
trustee hereunder shall be required to meet the terms of eligibility as a
successor trustee under Section 8.06 hereunder and no notice to Holders of
Certificates of the appointment of co-trustee(s) or separate trustee(s) shall be
required under Section 8.08 hereof.

            (b) In the case of any appointment of a co-trustee or separate
trustee pursuant to this Section 8.10, all rights, powers, duties and
obligations conferred or imposed upon the Trustee shall be conferred or imposed
upon and exercised or performed by the Trustee and such separate trustee or
co-trustee jointly, except to the extent that under any law of any jurisdiction
in which any particular act or acts are to be performed (whether as Trustee
hereunder or as successor to a Master Servicer or Special Servicer hereunder),
the Trustee shall be incompetent or unqualified to perform such act or acts, in
which event such rights, powers, duties and obligations (including the holding
of title to the Trust Fund or any portion thereof in any such jurisdiction)
shall be exercised and performed by such separate trustee or co-trustee at the
direction of the Trustee.

            (c) Any notice, request or other writing given to the Trustee shall
be deemed to have been given to each of the then-separate trustees and
co-trustees, as effectively as if given to each of them. Every instrument
appointing any separate trustee or co-trustee shall refer to this Agreement and
the conditions of this Article VIII. Each separate trustee and co-trustee, upon
its acceptance of the trusts conferred, shall be vested with the estates or
property specified in its instrument of appointment, either jointly with the
Trustee or separately, as may be provided therein, subject to all the provisions
of this Agreement, specifically including every provision of this Agreement
relating to the conduct of, affecting the liability of, or affording protection
to, the Trustee. Every such instrument shall be filed with the Trustee.

            (d) Any separate trustee or co-trustee may, at any time, constitute
the Trustee, its agent or attorney-in-fact, with full power and authority, to
the extent not prohibited by law, to do any lawful act under or in respect of
this Agreement on its behalf and in its name. If any separate trustee or
co-trustee shall die, become incapable of acting, resign or be removed, all of
its estates, properties, rights, remedies and trusts shall vest in and be
exercised by the Trustee, to the extent permitted by law, without the
appointment of a new or successor trustee.

            (e) The appointment of a co-trustee or separate trustee under this
Section 8.10 shall not relieve the Trustee of its duties and responsibilities
hereunder.

            Section 8.11 Appointment of Custodians.

            The Trustee may appoint at the Trustee's own expense one or more
Custodians to hold all or a portion of the Mortgage Files as agent for the
Trustee; provided that the Trustee shall inform the Master Servicers of such
appointment. Each Custodian shall be a depositary institution supervised and
regulated by a federal or state banking authority, shall have combined capital
and surplus of at least $10,000,000, shall be qualified to do business in the
jurisdiction in which it holds any Mortgage File, shall not be the Depositor,
any Mortgage Loan Seller or any Affiliate of the Depositor or any Mortgage Loan
Seller, and shall have in place a fidelity bond and errors and omissions policy,
each in such form and amount as is customarily required of custodians acting on
behalf of FHLMC or FNMA. Each Custodian shall be subject to the same
obligations, standard of care, protection and indemnities as would be imposed
on, or would protect, the Trustee hereunder in connection with the retention of
Mortgage Files directly by the Trustee. The appointment of one or more
Custodians shall not relieve the Trustee from any of its obligations hereunder,
and the Trustee shall remain responsible for all acts and omissions of any
Custodian.

            Section 8.12 Access to Certain Information.

            (a) On or prior to the date of the first sale of any Non-Registered
Certificate to an Independent third party, the Depositor shall provide to the
Certificate Administrator a copy of any private placement memorandum or other
disclosure document used by the Depositor or its Affiliate in connection with
the offer and sale of the Class of Certificates to which such Non-Registered
Certificate relates. In addition, if any such private placement memorandum or
disclosure document is revised, amended or supplemented at any time following
the delivery thereof to the Certificate Administrator, the Depositor promptly
shall inform the Certificate Administrator of such event and shall deliver to
the Certificate Administrator a copy of the private placement memorandum or
disclosure document, as revised, amended or supplemented.

            The Certificate Administrator (and, as applicable, the Trustee with
respect to clauses E through I below) shall maintain at its offices primarily
responsible for administering the Trust Fund and shall, upon reasonable advance
written notice, make available during normal business hours for review by any
Certificateholder, Certificate Owner or prospective purchaser of a Certificate
or any interest therein, the Depositor, the Master Servicers, the Special
Servicers, the Directing Certificateholder, any Rating Agency, the Underwriters,
with respect to any Loan Combination, the related Companion Loan Holder or
Junior Loan Holder(s), as applicable, or any other Person to whom the
Certificate Administrator believes such disclosure is appropriate, originals or
copies of the following items to the extent such documents have been delivered
to the Certificate Administrator: (i) in the case of a Holder or prospective
transferee of a Non-Registered Certificate, any private placement memorandum or
other disclosure document relating to the Class of Certificates to which such
Non-Registered Certificate belongs, in the form most recently provided to the
Certificate Administrator and (ii) in all cases, (A) this Agreement and any
amendments hereto entered into pursuant to Section 10.01, (B) all statements
required to be delivered, or otherwise required to be made available, to
Certificateholders of the relevant Class pursuant to Section 4.02 since the
Closing Date, (C) all Officer's Certificates delivered to the Certificate
Administrator since the Closing Date pursuant to Section 11.12, (D) all
accountants' reports delivered to the Certificate Administrator since the
Closing Date pursuant to Section 11.13, (E) any and all modifications, waivers
and amendments of the terms of a Loan or Junior Loan entered into by a Master
Servicer or a Special Servicer and delivered to the Certificate Administrator or
Trustee pursuant to Section 3.20 (but only for so long as the affected Loan is
part of the Trust Fund), (F) any and all Officer's Certificates delivered to the
Certificate Administrator or Trustee to support a Master Servicer's
determination that any P&I Advance or Servicing Advance was or, if made, would
be a Nonrecoverable P&I Advance or Nonrecoverable Servicing Advance, as the case
may be, (G) any and all of the Loan Documents contained in the Mortgage File,
(H) information provided to the Certificate Administrator or Trustee regarding
the occurrence of Servicing Transfer Events as to the Loans, and (I) any and all
Sub-Servicing Agreements provided to the Trustee and any amendments thereto and
modifications thereof.

            Copies of any and all of the foregoing items will be available from
the Certificate Administrator upon written request; provided, however, that the
Certificate Administrator shall be permitted to require payment of a sum
sufficient to cover the reasonable costs and expenses of providing such copies,
except in the case of copies provided to the Rating Agencies, which shall be
free of charge. In addition, without limiting the generality of the foregoing,
any Requesting Subordinate Certificateholder may upon written request from the
Certificate Administrator obtain a copy of any report delivered to the Rating
Agencies under this Agreement. (b) Notwithstanding anything to the contrary
herein, in addition to the reports and information made available and
distributed pursuant to the terms of this Agreement (including the information
set forth in Section 8.12(a)), each of the Master Servicers and the Certificate
Administrator shall, in accordance with such reasonable rules and procedures as
it may adopt (which may include the requirement that an agreement that provides
that such information shall be kept confidential and used solely for purposes of
evaluating the investment characteristics of the Certificates be executed) also
make the reports available to Certificateholders pursuant to Section 4.02, and
with respect to any Loan Combination, the related Companion Loan Holder or
Junior Loan Holders, as applicable, as well as certain additional information
received by any Master Servicer or the Certificate Administrator, as the case
may be, to any Certificateholder, the Underwriters, the Initial Purchasers, any
Certificate Owner, and with respect to any Loan Combination, the related
Companion Loan Holder or Junior Loan Holders, as applicable, or any prospective
investor identified as such by a Certificateholder, a Certificate Owner, the
Underwriters, the Initial Purchaser or, with respect to any Loan Combination,
the related Companion Loan Holder or Junior Loan Holders, as applicable, that
requests such reports or information; provided that the applicable Master
Servicer or the Certificate Administrator, as the case may be, shall be
permitted to require payment of a sum sufficient to cover the reasonable costs
and expenses of providing copies of such reports or information; and provided,
further, that no Junior Loan Holder or prospective investor in a Junior Loan
shall be entitled to any such report or information except to the extent that it
relates to the subject Loan Combination.

            (c) With respect to any information furnished by the Certificate
Administrator or any Master Servicer pursuant to this Agreement, the Certificate
Administrator or such Master Servicer, as the case may be, shall be entitled to
indicate the source of such information and the Certificate Administrator or
such Master Servicer, as applicable, may affix thereto any disclaimer it deems
appropriate in its discretion. The Certificate Administrator or the applicable
Master Servicer, as applicable, shall notify Certificateholders, Certificate
Owners and, with respect to any Loan Combination, the related Companion Loan
Holder(s) and/or Junior Loan Holder(s), as applicable, of the availability of
any such information in any manner as it, in its sole discretion, may determine.
In connection with providing access to or copies of the items described in this
Section 8.12, the Certificate Administrator or the applicable Master Servicer,
as the case may be, may require: (i) in the case of Certificateholders and
Certificate Owners and the Directing Certificateholder, a confirmation executed
by the requesting Person substantially in the form of Exhibit S attached hereto
or otherwise in form and substance reasonably acceptable to such Master Servicer
or the Certificate Administrator, as applicable, generally to the effect that
such Person is a registered or beneficial holder of Certificates or an
investment advisor representing such Person and is requesting the information
solely for use in evaluating such Person's investment in the Certificates and
will otherwise keep such information confidential; and (ii) in the case of a
prospective purchaser or an investment advisor representing such Person,
confirmation executed by the requesting Person substantially in the form of
Exhibit S attached hereto or otherwise in form and substance reasonably
acceptable to the Trustee or the applicable Master Servicer, as the case may be,
generally to the effect that such Person is a prospective purchaser of a
Certificate or an interest therein or an investment advisor representing such
Person, and is requesting the information solely for use in evaluating a
possible investment in Certificates and will otherwise keep such information
confidential. None of the Master Servicers or the Certificate Administrator
shall be liable for the dissemination of information in accordance with this
Agreement.

            Section 8.13 Representations, Warranties and Covenants of the
Trustee.

            (a) The Trustee hereby represents and warrants to the Depositor, the
Certificate Administrator, the Master Servicers and the Special Servicers and
for the benefit of the Certificateholders and the Junior Loan Holders, as of the
Closing Date, that:

            (i) The Trustee is a national banking association, duly organized,
      validly existing and in good standing under the laws of the United States;

            (ii) The execution and delivery of this Agreement by the Trustee,
      and the performance and compliance with the terms of this Agreement by the
      Trustee, will not violate the Trustee's organizational documents or
      constitute a default (or an event which, with notice or lapse of time, or
      both, would constitute a default) under, or result in the breach of, any
      material agreement or other instrument to which it is a party or which is
      applicable to it or any of its assets;

            (iii) The Trustee has the full power and authority to enter into and
      consummate all transactions contemplated by this Agreement, has duly
      authorized the execution, delivery and performance of this Agreement, and
      has duly executed and delivered this Agreement;

            (iv) This Agreement, assuming due authorization, execution and
      delivery by each of the other parties hereto, constitutes a valid, legal
      and binding obligation of the Trustee, enforceable against the Trustee in
      accordance with the terms hereof, subject to (a) applicable bankruptcy,
      insolvency, reorganization, moratorium and other laws affecting the
      enforcement of creditors' rights generally and the rights of creditors of
      banks specifically and (b) general principles of equity, regardless of
      whether such enforcement is considered in a proceeding in equity or at
      law;

            (v) The Trustee is not in violation of, and its execution and
      delivery of this Agreement and its performance and compliance with the
      terms of this Agreement will not constitute a violation of, any law, any
      order or decree of any court or arbiter, or any order, regulation or
      demand of any federal, state or local governmental or regulatory
      authority, which violation, in the Trustee's good faith and reasonable
      judgment, is likely to affect materially and adversely the ability of the
      Trustee to perform its obligations under this Agreement;

            (vi) No litigation is pending or, to the best of the Trustee's
      knowledge, threatened against the Trustee which would prohibit the Trustee
      from entering into this Agreement or, in the Trustee's good faith and
      reasonable judgment, is likely to materially and adversely affect the
      ability of the Trustee to perform its obligations under this Agreement;
      and

            (vii) No consent, approval, authorization or order of any court or
      governmental agency or body is required for the execution, delivery and
      performance by the Trustee, or compliance by the Trustee with, this
      Agreement or the consummation of the transactions contemplated by this
      Agreement, except for any consent, approval, authorization or order which
      has not been obtained or cannot be obtained prior to the actual
      performance by the Trustee of its obligations under this Agreement, and
      which, if not obtained would not have a materially adverse effect on the
      ability of the Trustee to perform its obligations hereunder.

            Section 8.14 Representations, Warranties and Covenants of the
Certificate Administrator

            The Certificate Administrator hereby represents and warrants to the
Depositor, the Master Servicers, the Special Servicers and the Trustee, for its
own benefit and the benefit of the Certificateholders and the Junior Loan
Holders, as of the Closing Date, that:

            (i) The Certificate Administrator is a national banking association
      duly organized, validly existing, and in good standing under the laws of
      the United States and has full power, authority and legal right to own its
      properties and conduct its business as presently conducted and to execute,
      deliver and perform the terms of this Agreement.

            (ii) This Agreement has been duly authorized, executed and delivered
      by the Certificate Administrator and, assuming due authorization,
      execution and delivery by the other parties hereto, constitutes a legal,
      valid and binding instrument enforceable against the Certificate
      Administrator in accordance with its terms, except as such enforcement may
      be limited by bankruptcy, insolvency, reorganization or other similar laws
      affecting the enforcement of creditors' rights in general and by general
      equity principles (regardless of whether such enforcement is considered in
      a proceeding in equity or at law).

            (iii) Neither the execution and delivery of this Agreement by the
      Certificate Administrator nor the consummation by the Certificate
      Administrator of the transactions herein contemplated to be performed by
      the Certificate Administrator, nor compliance by the Certificate
      Administrator with the provisions hereof, will conflict with or result in
      a breach of, or constitute a default under, any of the provisions of any
      applicable law, governmental rule, regulation, judgment, decree or order
      binding on the Certificate Administrator or its properties or the
      organizational documents of the Certificate Administrator or the terms of
      any material agreement, instrument or indenture to which the Certificate
      Administrator is a party or by which it is bound.

            (iv) The Certificate Administrator is not in violation of, and the
      execution and delivery of this Agreement by the Certificate Administrator
      and its performance and compliance with the terms of this Agreement will
      not constitute a violation with respect to, any order or decree of any
      court binding on the Certificate Administrator or any law, order or
      regulation of any federal, state, municipal or governmental agency having
      jurisdiction, or result in the creation or imposition of any lien, charge
      or encumbrance which, in any such event, would have consequences that
      would materially and adversely affect the condition (financial or
      otherwise) or operation of the Certificate Administrator or its properties
      or impair the ability of the Trust Fund to realize on the Mortgage Loans;
      and

            (v) No consent, approval, authorization or order of, or registration
      or filing with, or notice to any court or governmental agency or body, is
      required for the execution, delivery and performance by the Certificate
      Administrator of or compliance by the Certificate Administrator with this
      Agreement, or if required, such approval has been obtained prior to the
      Cut-off Date.

                                   ARTICLE IX

                                   TERMINATION

            Section 9.01 Termination Upon Repurchase or Liquidation of All
Loans.

            (a) Subject to Section 9.02, the Trust Fund and the respective
obligations and responsibilities under this Agreement of the Depositor, the
Master Servicers, the Special Servicers, the Trustee and the Certificate
Administrator (other than the obligations of the Certificate Administrator to
provide for and make payments to Certificateholders as hereafter set forth)
shall terminate upon payment (or provision for payment) to the
Certificateholders of all amounts held by or on behalf of the Certificate
Administrator and required hereunder to be so paid on the Distribution Date
following the earliest to occur of (i) the purchase (in the manner provided for
in Section 9.01(b)) by the Holders of a majority of the Percentage Interests of
the Controlling Class, Special Servicer No. 2, Master Servicer No. 1, Master
Servicer No. 2 or Special Servicer No. 1 of all the Loans and each REO Property
remaining in the Trust Fund at a price equal to (A) the sum of (1) the aggregate
Purchase Price of all the Loans (exclusive of REO Loans) included in the Trust
Fund and (2) the Appraised Value of each REO Property, if any, included in the
Trust Fund (such Appraisals in this subclause (2) to be conducted by an
Appraiser selected and mutually agreed upon by the applicable Master
Servicer(s), the applicable Special Servicer(s) and the Trustee), minus (B) if
the purchaser is a Master Servicer or Special Servicer, the aggregate amount of
unreimbursed Advances made by such Person, together with any unpaid Advance
Interest in respect of such unreimbursed Advances and any unpaid servicing
compensation payable to such Person (which items shall be deemed to have been
paid or reimbursed to such Master Servicer or Special Servicer, as the case may
be, in connection with such purchase), (ii) the exchange by the Sole
Certificateholder pursuant to the terms of subsection (c), (iii) the
Distribution Date in September 2039 and (iv) the final payment or other
liquidation (or any advance with respect thereto) of the last Loan or REO
Property remaining in the Trust Fund; provided, however, that in no event shall
the trust created hereby continue beyond the earlier of (i) the Rated Final
Distribution Date and (ii) expiration of 21 years from the death of the last
survivor of the descendants of Joseph P. Kennedy, the late ambassador of the
United States to the Court of St. James's, living on the date hereof.

            (b) The Holders of a majority of the Percentage Interests of the
Controlling Class, Special Servicer No. 2, Master Servicer No. 1, Master
Servicer No. 2 and Special Servicer No. 1, in that order of preference at its
(or their) option, may each elect to purchase all of the Loans and each REO
Property remaining in the Trust Fund as contemplated by clause (i) of Section
9.01(a), by giving written notice to the Certificate Administrator and the other
parties hereto (and NCB, FSB if it is not then a Master Servicer) no later than
60 days prior to the anticipated date of purchase; provided, however, that the
aggregate Stated Principal Balance of the Mortgage Pool is less than 1.0% of the
aggregate Cut-off Date Principal Balance of the Loans set forth in the
Preliminary Statement; and provided, further, that within 30 days after written
notice of such election is so given, no Person with a higher right of priority
to make such an election does so; and provided, further, that if any of the
Holders of a majority of the Percentage Interests of the Controlling Class,
Special Servicer No. 2, Master Servicer No. 1, Master Servicer No. 2 (if not
then NCB, FSB) or Special Servicer No. 1 makes such an election, then NCB, FSB
will have the option, by giving written notice to the other parties hereto and
to the Holders of the Controlling Class no later than 30 days prior to the
anticipated date of purchase, to purchase all of the Group B Loans and each
related REO Property remaining in the Trust Fund, and the electing party will
then have the option to purchase all of the other Loans and other REO Properties
remaining in the Trust Fund. It is agreed that NCB, FSB (if it is not then a
Master Servicer at the time of the anticipated purchase) is a third-party
beneficiary of the provisions of this paragraph; provided, further, that such
purchase of all of the Loans and each REO Property remaining in the Trust Fund
as contemplated by clause (i) of Section 9.01(a) may not be effected unless such
purchase would result in all amounts due and owing to the Swap Counterparty
under the Swap Agreement being paid or unless the Swap Counterparty consents in
writing to such purchase. Notwithstanding the foregoing, no Affiliate of Column
Financial, Inc. may exercise the right to purchase the Loans and REO Property
set forth in the preceding sentence.

            If all of the Loans and each REO Property remaining in the Trust
Fund are to be purchased in accordance with the preceding paragraph, the party
or parties effecting such purchase shall remit to the Certificate Administrator
for deposit in the Distribution Account not later than the Master Servicer
Remittance Date relating to the Distribution Date on which the final
distribution on the Certificates is to occur, an amount in immediately available
funds equal to the above-described purchase price (exclusive of (i) any portion
thereof payable to any Person other than the Certificateholders pursuant to
Section 3.05(a), which portion shall be deposited in the respective Collection
Accounts and (ii) any respective portion thereof representing accrued and unpaid
Excess Interest, which shall be deposited in the Grantor Trust Distribution
Account). In addition, the Master Servicers shall remit to the Certificate
Administrator for deposit in the Distribution Account all amounts required to be
transferred thereto on such Master Servicer Remittance Date from their
respective Collection Accounts pursuant to the first paragraph of Section
3.04(b), together with any other amounts on deposit in their respective
Collection Accounts that would otherwise be held for future distribution. Upon
confirmation that such final deposits have been made, the Certificate
Administrator shall release or cause to be released to the party or parties
effecting the purchase of all of the Loans and each REO Property remaining in
the Trust Fund, the Mortgage Files for the remaining Loans purchased thereby,
and the Trustee or Certificate Administrator shall execute all assignments,
endorsements and other instruments furnished to it by the party or parties
effecting the purchase of all of the Loans and each REO Property remaining in
the Trust Fund, as applicable, as shall be necessary to effectuate transfer of
the Loans and REO Properties remaining in the Trust Fund and its rights under
the related Mortgage Loan Purchase Agreement(s).

            (c) Following the date on which the aggregate of the Class Principal
Balances of the Class A-1, Class A-1-A, Class A-2, Class A-AB, Class A-3, Class
A-4FL, Class A-M, Class A-J, Class B, Class C, Class D, Class E, Class F, Class
G, Class H, Class J and Class K Certificates are reduced to zero, the Sole
Certificateholder shall have the right to exchange all of its Certificates
(other than the Class V and Class R Certificates) for all of the Loans and each
REO Property remaining in the Trust Fund, provided that such Certificateholder
pay the Certificate Administrator an amount equal to interest calculated at the
prime rate on the aggregate certificate principal balance of the principal
balance certificates, as of the first day of the current calendar month from and
including one Business Day prior to such final Distribution Date to but
excluding such final Distribution Date, as contemplated by clause (ii) of
Section 9.01(a) by giving written notice to all the parties hereto no later than
60 days prior to the anticipated date of exchange. In the event that the Sole
Certificateholder elects to exchange all of its Certificates (other than the
Class V and Class R Certificates) for all of the Loans and each REO Property
remaining in the Trust in accordance with the preceding sentence, such Sole
Certificateholder, not later than the Master Servicer Remittance Date related to
the Distribution Date on which the final distribution on the Certificates is to
occur, shall deposit in the respective Collection Accounts an aggregate amount
in immediately available funds equal to all amounts due and owing to the
Depositor, the Master Servicers, the Special Servicers and the Trustee hereunder
through the date of the liquidation of the Trust Fund that may be withdrawn from
the Collection Accounts, or an escrow account acceptable to the respective
parties hereto, pursuant to Section 3.05(a) or that may be withdrawn from the
Distribution Account pursuant to Section 3.05(b), but only to the extent that
such amounts are not already on deposit in the Collection Accounts. In addition,
the Master Servicers shall remit to the Certificate Administrator for deposit
into the Distribution Account all amounts required to be transferred to the
Distribution Account on such Master Servicer Remittance Date from their
respective Collection Accounts pursuant to Section 3.04(b). Upon confirmation
that such final deposits have been made and following the surrender of all its
Certificates (other than the Class V and Class R Certificates) on the Final
Distribution Date, the Trustee shall, upon receipt of a Request for Release from
each Master Servicer as to the Loans for which it is the applicable Master
Servicer and any related REO Properties, release or cause to be released to the
Sole Certificateholder or any designee thereof, the Mortgage Files for the
remaining Loans and shall execute all assignments, endorsements and other
instruments furnished to it by the Sole Certificateholder as shall be necessary
to effectuate transfer of the Loans and REO Properties remaining in the Trust
Fund, and the Trust Fund shall be liquidated in accordance with Section 9.02.
For federal income tax purposes, the Sole Certificateholder shall be deemed to
have purchased the assets of the Lower-Tier REMIC (other than the 828-850
Madison Avenue Loan REMIC Regular Interest) and the 828-850 Madison Avenue Loan
from the 828-850 Madison Avenue Loan REMIC for an amount equal to the remaining
aggregate Certificate Principal Balance of its respective Certificates (other
than the Class V and Class R Certificates), plus accrued, unpaid interest with
respect thereto, and the Certificate Administrator shall credit such amount
against amounts distributable in respect of such Certificates. The remaining
Loans and REO Properties are deemed distributed to the Sole Certificateholder in
liquidation of the Trust Fund pursuant to Section 9.02.

            For purposes of this Section 9.01, the Directing Certificateholder,
with the consent of the Holders of the Controlling Class, shall act on behalf of
the Holders of the Controlling Class in purchasing the assets of the Trust Fund
and terminating the Trust.

            In connection with any exchange of Certificates for Loans and/or REO
Properties contemplated by this Section 9.01(c) and a corresponding termination
of the Trust Fund, the Holders of the Class V and Class R Certificates shall
likewise surrender their Certificates.

            (d) Notice of any termination pursuant to this Section 9.01 shall be
given promptly by the Certificate Administrator by letter to the
Certificateholders, the Companion Loan Holders, the Swap Counterparty, the
Junior Loan Holders and each Rating Agency and, if not previously notified
pursuant to this Section 9.01, to the other parties hereto mailed (a) in the
event such notice is given in connection with the purchase of all of the Loans
and each REO Property remaining in the Trust Fund, not earlier than the 15th day
and not later than the 25th day of the month next preceding the month of the
final distribution on the Certificates, or (b) otherwise during the month of
such final distribution on or before the P&I Advance Determination Date in such
month, in each case specifying (i) the Distribution Date upon which the Trust
Fund will terminate and final payment of the Certificates will be made, (ii) the
amount of any such final payment and (iii) that the Record Date otherwise
applicable to such Distribution Date is not applicable, payments being made only
upon presentation and surrender of the Certificates at the offices of the
Certificate Administrator or such other location therein designated.

            (e) Upon presentation and surrender of the Certificates by the
Certificateholders on the final Distribution Date, the Certificate Administrator
shall distribute to each Certificateholder so presenting and surrendering its
Certificates such Certificateholder's Percentage Interest of that portion of the
amounts then on deposit in the Distribution Account and/or the Grantor Trust
Distribution Account that are allocable to payments on the Class of Certificates
so presented and surrendered. Amounts distributed from the Distribution Account
as of the final Distribution Date shall be allocated for the purposes, in the
amounts and in accordance with the priority set forth in Sections 4.01(a),
4.01(b) and 4.01(g). Anything in this Section 9.01 to the contrary
notwithstanding, the Holders of the Class V Certificates shall receive that
portion, if any, of the proceeds of a sale of the assets of the Trust Fund
allocable to accrued and unpaid Excess Interest. Any funds not distributed on
such Distribution Date shall be set aside and held uninvested in trust for the
benefit of Certificateholders not presenting and surrendering their Certificates
in the aforesaid manner and shall be disposed of in accordance with this Section
9.01 and Section 4.01(e). Upon any termination pursuant to this Section 9.01,
any Excess Liquidation Proceeds remaining in the Excess Liquidation Proceeds
Reserve Account shall be distributed to the holders of the Class R Certificates.

            Section 9.02 Additional Termination Requirements.

            (a) If any one or more of the Persons specified in Section 9.01
purchases all of the Loans and each REO Property remaining in the Trust Fund or
the Sole Certificateholder causes the distribution of all the property of the
Trust Fund as provided in Section 9.01, the Trust Fund shall be terminated in
accordance with the following additional requirements, which meet the definition
of a "qualified liquidation" of each Trust REMIC, within the meaning of Section
860F(a)(4) of the Code:

            (i) the Certificate Administrator shall specify the first day in the
      90-day liquidation period in a statement attached to each of the Trust
      REMIC's final Tax Returns pursuant to Treasury Regulations Section
      1.860F-1;

            (ii) within such 90-day liquidation period and at or prior to the
      time of the making of the final payment on the Certificates, the
      Certificate Administrator shall either (A) sell all of the assets of the
      828-850 Madison Avenue Loan REMIC and the Lower-Tier REMIC (other than the
      828-850 Madison Avenue Loan REMIC Regular Interest, which shall be
      liquidated), to Person(s) purchasing all of the Loans and each REO
      Property remaining in the Trust Fund pursuant to Section 9.01 for cash or
      (B) distribute all such assets to the Sole Certificateholder on the
      designated exchange date in exchange for its Certificates; and

            (iii) immediately following the making of the final payment on the
      828-850 Madison Avenue Loan REMIC Regular Interest, the Uncertificated
      Lower-Tier Interests and the Regular Certificates, the Certificate
      Administrator shall distribute or credit, or cause to be distributed or
      credited, all cash on hand in the Trust Fund (other than cash retained to
      meet claims) to the Holders of the Class R Certificates any amounts
      remaining in the Trust REMICs (and in the Grantor Trust in respect of the
      828-850 Madison Avenue Loan REMIC Regular Interest), and each Trust REMIC
      shall terminate at that time.

            (b) Notwithstanding the foregoing, the 828-850 Madison Avenue Loan
REMIC shall be liquidated upon a repurchase of the 828-850 Madison Avenue Loan
from the Trust Fund as a result of a repurchase upon a breach of a
representation or warranty with respect to the 828-850 Madison Avenue Loan set
forth in the Mortgage Loan Purchase Agreement, and the date of such repurchase
shall be specified in the 828-850 Madison Avenue Loan REMIC's final federal
income tax return as the date of adoption of a plan of complete liquidation of
such REMIC.

            (c) By their acceptance of Certificates, the Holders thereof hereby
agree to authorize the Certificate Administrator to specify the 90-day
liquidation period for each Trust REMIC, which authorization shall be binding
upon all successor Certificateholders.

            (d) In the event the Trust Fund is to be terminated while the Swap
Agreement is still in effect, the Certificate Administrator shall promptly
notify the Swap Counterparty in writing of the date on which the Trust Fund is
to be terminated and that the notional amount of the Swap Agreement will be
reduced to zero on such date. Based on the date of termination, the Certificate
Administrator shall confirm the Class A-4FL Net Fixed Swap Payment, if any,
calculated by the Swap Counterparty, and prior to any final distributions to the
Holders of the Class A-4FL Certificates pursuant to Section 9.01, shall pay such
Class A-4FL Net Fixed Swap Payment, if any, to the Swap Counterparty. In the
event that any fees (including termination fees) are payable to the Swap
Counterparty in connection with such termination, such fees will be payable to
the Swap Counterparty solely from amounts remaining in the Floating Rate Account
after all distributions to the Class A-4FL Certificates are made pursuant to
Section 9.01.

                                   ARTICLE X

                            MISCELLANEOUS PROVISIONS

            Section 10.01 Amendment.

            (a) This Agreement may be amended from time to time by the mutual
agreement of the parties hereto, without the consent of any of the
Certificateholders or any of the Junior Loan Holders, (i) to cure any ambiguity,
(ii) to correct, modify or supplement any provision herein which may be
inconsistent with any other provision herein or to correct any error, (iii) to
make any other provisions with respect to matters or questions arising hereunder
which shall not be inconsistent with the then existing provisions hereof, (iv)
as evidenced by an Opinion of Counsel delivered to the Trustee, the Certificate
Administrator, each Master Servicer and each Special Servicer, to relax or
eliminate (A) any requirement hereunder imposed by the REMIC Provisions (if the
REMIC Provisions are amended or clarified such that any such requirement may be
relaxed or eliminated) or (B) any transfer restriction imposed on the
Certificates pursuant to Section 5.02(b) or Section 5.02(c) (if applicable law
is amended or clarified such that any such restriction may be relaxed or
eliminated), (v) as evidenced by an Opinion of Counsel delivered to the
Certificate Administrator, either (X) to comply with any requirements imposed by
the Code or any successor or amendatory statute or any temporary or final
regulation, revenue ruling, revenue procedure or other written official
announcement or interpretation relating to federal income tax laws or any such
proposed action which, if made effective, would apply retroactively to any Trust
REMIC or the Grantor Trust portion of the Trust Fund at least from the effective
date of such amendment, or (Y) to avoid the occurrence of a prohibited
transaction or to reduce the incidence of any tax that would arise from any
actions taken with respect to the operation of any Trust REMIC or the portion of
the Trust Fund that constitutes the Grantor Trust, (vi) subject to Section
5.02(d)(iv), to modify, add to or eliminate any of the provisions of Section
5.02(d)(i), (ii) or (iii), (vii) to avoid the downgrading, withdrawal or
qualification of then-current rating assigned by a Rating Agency to any Class of
Certificates, or (viii) to allow any Mortgage Loan Seller and its Affiliates to
obtain accounting "sale" treatment for the Loans sold by such Mortgage Loan
Seller to the Depositor under FAS 140; provided that no such amendment may
significantly change the activities of the Trust in a manner that would
adversely affect the Trust's status as a "qualifying special purpose entity" for
purposes of FAS 140; and provided, further, that any such amendment for the
specific purposes described in clause (iii), (iv), (vii) or (viii) above shall
not adversely affect in any material respect the interests of any
Certificateholder, any Junior Loan Holder or any third-party beneficiary to this
Agreement or any provision hereof, as evidenced by the Certificate
Administrator's receipt of an Opinion of Counsel to that effect or,
alternatively, in the case of any particular Certificateholder, Junior Loan
Holder or third-party beneficiary, an acknowledgment to that effect from such
Person or, alternatively, in the case of a Class of Certificates rated by either
or both of the Rating Agencies, written confirmation from each applicable Rating
Agency to the effect that such amendment shall not result in the downgrading,
withdrawal or qualification of the then-current rating assigned by such Rating
Agency to such Class of Certificates; and provided, further, that with respect
to any such amendment for the specific purposes described in clause (iii) above,
the Certificate Administrator shall receive written confirmation from each
applicable Rating Agency to the effect that such amendment shall not result in a
downgrade, withdrawal or qualification of the then-current rating assigned by
such Rating Agency to any Class of Certificates.

            (b) This Agreement may also be amended from time to time by the
mutual agreement of the parties hereto, with the consent of the Holders of
Certificates entitled to not less than 51% of the Voting Rights allocated to all
of the Classes that are materially affected by the amendment, for the purpose of
adding any provisions to or changing in any manner or eliminating any of the
provisions of this Agreement or of modifying in any manner the rights of the
Holders of Certificates; provided, however, that no such amendment shall (i)
reduce in any manner the amount of, or delay the timing of, payments received or
advanced on Loans and/or REO Properties which are required to be distributed on
any Certificate, without the consent of the Holder of such Certificate, (ii)
adversely affect in any material respect the interests of the Holders of any
Class of Certificates or the interests of any Junior Loan Holder in a manner
other than as described in clause (i) above, without the consent of the Holders
of all Certificates of such Class or the consent of any such Junior Loan Holder,
(iii) modify the provisions of this Section 10.01 or the definition of
"Servicing Standard," without the consent of the Holders of all Certificates
then outstanding and the consent of all the holders of Junior Loans, (iv)
significantly change the activities of the Trust, without the consent of the
Holders of Certificates entitled to not less than 66(2)/3% of all the Voting
Rights (not taking into account Certificates held by the Depositor or any of its
Affiliates or agents), or (v) adversely affect in any material respect the
interests of any third-party beneficiary to this Agreement or any provision
herein, without the consent of such third-party beneficiary. Notwithstanding any
other provision of this Agreement (except as contemplated by clause (iv) of the
prior sentence), for purposes of the giving or withholding of consents pursuant
to this Section 10.01, Certificates registered in the name of the Depositor or
any Affiliate of the Depositor shall be entitled to the same Voting Rights with
respect to the matters described above as they would if registered in the name
of any other Person.

            (c) Notwithstanding any contrary provision of this Agreement, the
Trustee, the Certificate Administrator, the Master Servicers and the Special
Servicers shall not consent to any amendment to this Agreement unless each of
them shall first have received from the party requesting the amendment an
Opinion of Counsel to the effect that neither such amendment nor the exercise of
any power granted to any party hereto in accordance with such amendment will
result in an Adverse REMIC Event with respect to any Trust REMIC or adversely
affecting the remaining portion of the Trust Fund as a Grantor Trust or result
in a tax on such Grantor Trust.

            (d) Promptly after the execution and delivery of any amendment by
all parties thereto, the Certificate Administrator shall send a copy thereof to
the Swap Counterparty and each Certificateholder, Junior Loan Holder and Rating
Agency.

            (e) It shall not be necessary for the consent of Certificateholders
under this Section 10.01 to approve the particular form of any proposed
amendment, but it shall be sufficient if such consent shall approve the
substance thereof. The manner of obtaining such consents and of evidencing the
authorization, execution and delivery thereof by Certificateholders shall be
subject to such reasonable regulations as the Certificate Administrator may
prescribe.

            (f) The Trustee and the Certificate Administrator may but shall not
be obligated to enter into any amendment pursuant to this Section 10.01 that
affects its respective rights, duties and immunities under this Agreement or
otherwise.

            (g) The cost of any Opinion of Counsel to be delivered pursuant to
Section 10.01(a) or (c) shall be borne by the Person seeking the related
amendment, except that if the Trustee requests any amendment of this Agreement
that it reasonably believes protects or is in furtherance of the rights and
interests of Certificateholders, the cost of any Opinion of Counsel required in
connection therewith pursuant to Section 10.01(a) or (c) shall be payable out of
the Distribution Account.

            (h) Notwithstanding anything to the contrary contained in this
Section 10.01, the parties hereto agree that (i) this Agreement may not be
amended except upon 10 days' prior written notice to the Swap Counterparty and
(ii) this Agreement may not be amended in any manner that is reasonably likely
to have a material adverse effect on the Junior Loan Holders or the Swap
Counterparty without first obtaining the written consent of those parties. The
applicable Master Servicer may obtain, and each of the Master Servicers may rely
upon, an Opinion of Counsel to the effect that such action will not adversely
affect in any material respect the interests of the Junior Loan Holders or the
Swap Counterparty.

            (i) Notwithstanding anything to the contrary contained in this
Section 10.01, the parties hereto agree that this Agreement may not be amended
in any manner that is reasonably likely to have a material adverse effect on the
holder of a Companion Loan without first obtaining the written consent of those
parties. The applicable Master Servicer may obtain, and each of the Master
Servicers may rely upon, an Opinion of Counsel to the effect that such action
will not adversely affect in any material respect the interests of the Companion
Loan Holder.

            (j) Notwithstanding anything to the contrary contained in this
Section 10.01, no amendment may change in any manner the obligations of a
Mortgage Loan Seller under a Mortgage Loan Purchase Agreement without the prior
written consent of such Mortgage Loan Seller.

            Section 10.02 Recordation of Agreement; Counterparts.

            (a) To the extent permitted by applicable law, this Agreement is
subject to recordation in all appropriate public offices for real property
records in all the counties or other comparable jurisdictions in which any or
all of the properties subject to the Mortgages are situated, and in any other
appropriate public recording office or elsewhere, such recordation to be
effected by Master Servicer No. 1 at the expense of the Depositor on direction
by the Trustee, but only upon direction accompanied by an Opinion of Counsel
(the cost of which shall be paid by the Depositor or, to the extent that such
recordation is for the benefit of a Junior Loan Holder, by such Junior Loan
Holder, as the case may be) to the effect that such recordation materially and
beneficially affects the interests of the Certificateholders and/or one or more
Junior Loan Holders.

            (b) For the purpose of facilitating the recordation of this
Agreement as herein provided and for other purposes, this Agreement may be
executed simultaneously in any number of counterparts, each of which
counterparts shall be deemed to be an original, and such counterparts shall
constitute but one and the same instrument.

            Section 10.03 Limitation on Rights of Certificateholders.

            (a) The death or incapacity of a Certificateholder shall not operate
to terminate this Agreement or the Trust Fund, nor entitle such
Certificateholder's legal representatives or heirs to claim an accounting or to
take any action or proceeding in any court for a partition or winding up of the
Trust Fund, nor otherwise affect the rights, obligations and liabilities of the
parties hereto or any of them.

            (b) Except as expressly provided herein, no Certificateholder shall
have any right to vote or in any manner otherwise control the operation and
management of the Trust Fund, or the obligations of the parties hereto, nor
shall anything herein set forth, or contained in the terms of the Certificates,
be construed so as to constitute the Certificateholders from time to time as
partners or members of an association; nor shall any Certificateholder be under
any liability to any third party by reason of any action taken by the parties to
this Agreement pursuant to any provision hereof.

            (c) No Certificateholder shall have any right by virtue of any
provision of this Agreement to institute any suit, action or proceeding in
equity or at law upon or under or with respect to this Agreement or any Loan,
unless with respect to any suit, action or proceeding upon or under or with
respect to this Agreement, such Holder previously shall have given to the
Trustee a written notice of default hereunder, and of the continuance thereof,
as hereinbefore provided, and unless also (except in the case of a default by
the Trustee) the Holders of Certificates of any Class evidencing not less than
25% of the related Percentage Interests in such Class shall have made written
request upon the Trustee to institute such action, suit or proceeding in its own
name as Trustee hereunder and shall have offered to the Trustee such reasonable
indemnity as it may require against the costs, expenses and liabilities to be
incurred therein or thereby, and the Trustee, for 60 days after its receipt of
such notice, request and offer of indemnity, shall have neglected or refused to
institute any such action, suit or proceeding. The Trustee shall be under no
obligation to exercise any of the trusts or powers vested in it hereunder or to
institute, conduct or defend any litigation hereunder or in relation hereto at
the request, order or direction of any of the Holders of Certificates unless
such Holders have offered to the Trustee reasonable security against the costs,
expenses and liabilities which may be incurred therein or hereby.

            It is understood and intended, and expressly covenanted by each
Certificateholder with every other Certificateholder and the Trustee, that no
one or more Holders of Certificates shall have any right in any manner
whatsoever by virtue of any provision of this Agreement to affect, disturb or
prejudice the rights of the Holders of any other of such Certificates, or to
obtain or seek to obtain priority over or preference to any other such Holder,
which priority or preference is not otherwise provided for herein, or to enforce
any right under this Agreement, except in the manner herein provided and for the
equal, ratable and common benefit of all Certificateholders. For the protection
and enforcement of the provisions of this Section 10.03(c), each and every
Certificateholder and the Trustee shall be entitled to such relief as can be
given either at law or in equity.

            Section 10.04 Governing Law.

            This Agreement and the Certificates shall be construed in accordance
with the internal laws of the State of New York applicable to agreements made
and to be performed in said State, and the obligations, rights and remedies of
the parties hereunder shall be determined in accordance with such laws. The
parties hereto intend that the provisions of Section 5-1401 of the New York
General Obligations Law shall apply to this Agreement.

            Section 10.05 Notices.

            Any communications provided for or permitted hereunder shall be in
writing and, unless otherwise expressly provided herein, shall be deemed to have
been duly given if personally delivered at or mailed by registered mail, postage
prepaid (except for notices to the Trustee which shall be deemed to have been
duly given only when received), to: (i) (a) in the case of the Depositor, Credit
Suisse First Boston Mortgage Securities Corp., Eleven Madison Avenue, New York,
New York 10010, Attention: Edmund Taylor, with a copy to Casey McCutcheon, Esq.,
Legal & Compliance Department, telecopy number.: (917) 326-8433; (ii) in the
case of the Underwriters and the Initial Purchaser, (A) Credit Suisse Securities
(USA) LLC, Eleven Madison Avenue, New York, New York 10010, Attention: Edmund
Taylor, with a copy to Casey McCutcheon, Esq., Legal & Compliance Department,
telecopy number: (917) 326-8433, (B) LaSalle Financial Services, Inc., 55 East
52nd Street, New York, NY 10055, telecopy number (212) 409-7857; Attention: J.
Kurt Kaline; with a copy to Andy Chen, Legal Department, telecopy number: (212)
409-7303, (C) McDonald Investments Inc., 127 Public Square, Cleveland, Ohio
44114, Attention: Joe Chinnici, telecopy number: (216) 689-4233, (D) Barclays
Capital Inc. 200 Park Avenue, New York, New York 10166, Attention: Kristen
Rodriguez with a copy to Ian Sterling, (E) Wachovia Capital Markets, LLC, 301 S.
College Street, NC0166, Charlotte, North Carolina 28288-1075, Attention: William
J. Cohane with a copy to Cadwalader, Wickersham & Taft LLP, 227 West Trade
Street, Suite 2400, Charlotte, North Carolina 28202, Attention: Stuart N.
Goldstein, Esq. and (F) Greenwich Capital Markets, Inc., 600 Steamboat Road,
Greenwich, Connecticut 06830, Attention: Andrew Snow, Telecopy No.: (203)
618-2134, with a copy to Paul S. Stevelman, Esq., Legal Department, Telecopy
No.: (203) 618-2132; (iii) in the case of Master Servicer No. 1, KeyCorp Real
Estate Capital Markets, Inc., 1717 Main Street, Suite 1000, Dallas, Texas 75201,
telecopy number: (800) 393-0181, Attention: Don Kalescky with a copy to Robert
C. Bowes, KeyBank National Association, 127 Public Square, Cleveland, Ohio
44114, telecopy: (216) 689-5681 and with a copy a to Kraig Kohring, Polsinelli
Shalton Welte Suelthaus P.C., 700 W. 47th Street, Suite 1000, Kansas City,
Missouri 64112, telecopy: (816) 753-1536, (iv) in the case of Master Servicer
No. 2, NCB, FSB, 1725 Eye Street, N.W., Washington, D.C. 20006, Attention:
Kathleen Luzik, telecopy number: (202) 336-7800; (v) in the case of Special
Servicer No. 1, LNR, LNR Partners, Inc., 1601 Washington Avenue, Suite 700,
Miami Beach, Florida 33139, Attention: Randy Wolpert and Thomas F. Nealon III,
Esq., facsimile number (305) 695 5601, and Attention: Javier Benedit, facsimile
number (305) 695-5199, with copies to Alan Kazan, Bilzin Sumberg Baena Price &
Axelrod LLP, 200 S. Biscayne Blvd., Suite 2500, Miami, Florida 33131, facsimile
number (305) 351-2229;; (vi) in the case of Special Servicer No. 2, National
Consumer Cooperative Bank, FSB, 1725 Eye Street, N.W., Washington, D.C. 20006,
Attention: Kathleen Luzik, telecopy number: (202) 336-7800; (vii) in the case of
the Trustee, Wells Fargo Bank, N.A., to the Corporate Trust Office, telecopy
number: (410) 715-2380; (viii) in the case of the Certificate Administrator, to
the Corporate Trust Office, telecopy number (312) 904-2084; (ix) in the case of
the Rating Agencies, (A) Fitch, Inc., One State Street Plaza, 31st Floor, New
York, NY, Attention: Commercial Mortgage Surveillance, telecopy number: (212)
635-0295; (B) Standard & Poor's Ratings Services, a division of The McGraw-Hill
Companies, Inc., 55 Water Street, New York, New York 10041, Attention: CMBS
Surveillance Department, telecopy number: (212) 438-2662, and (C) Moody's
Investors Service Inc., 99 Church Street, New York, New York 10007, Attention:
Commercial MBS Monitoring Department, telecopy number: (212) 553-0300; (x) in
the case of any Mortgage Loan Seller, the address and telecopy number for
notices to such Mortgage Loan Seller under the related Mortgage Loan Purchase
Agreement; (xi) in the case of the initial Directing Certificateholder, Hyperion
Brookfield Asset Management, Inc., Three World Financial Center, 200 Vesey
Street, 10th Floor, New York, NY 10281-1010, Attention: Julie Madnick, telecopy
number: (212) 549-8304; and (xii) in the case of the Swap Counterparty, the
address and facsimile number for notices to the Swap Counterparty under the Swap
Agreement, or as to each such Person such other address as may hereafter be
furnished by such Person to the parties hereto in writing. Any communication
required or permitted to be delivered to a Certificateholder shall be deemed to
have been duly given when mailed first class, postage prepaid, to the address of
such Holder as shown in the Certificate Register. Any notice so mailed within
the time prescribed in this Agreement shall be conclusively presumed to have
been duly given, whether or not the Certificateholder receives such notice.

            Section 10.06 Severability of Provisions.

            If any one or more of the covenants, agreements, provisions or terms
of this Agreement shall be for any reason whatsoever held invalid, then such
covenants, agreements, provisions or terms shall be deemed severable from the
remaining covenants, agreements, provisions or terms of this Agreement and shall
in no way affect the validity or enforceability of the other provisions of this
Agreement or of the Certificates or the rights of the Holders thereof.

            Section 10.07 Grant of a Security Interest.

            The Depositor and the Trustee intend that the conveyance of the
Depositor's right, title and interest in and to the Loans pursuant to this
Agreement shall constitute a sale and not a pledge of security for a loan. If
such conveyance is deemed to be a pledge of security for a loan, however, the
Depositor and the Trustee intend that the rights and obligations of the parties
to such loan shall be established pursuant to the terms of this Agreement. The
Depositor also intends and agrees that, in such event, (i) the Depositor shall
be deemed to have granted to the Trustee (in such capacity) a first priority
security interest in the Depositor's entire right, title and interest in and to
the assets comprising the Trust Fund, including without limitation, the Loans,
all principal and interest received or receivable with respect to the Loans
(other than principal and interest payments due and payable prior to the Cut-off
Date and Principal Prepayments received prior to the Cut-off Date), all amounts
with respect to the Loans held from time to time in the Collection Accounts, the
Distribution Account, the Excess Liquidation Proceeds Account, the Interest
Reserve Account and, if established, the REO Accounts, and all reinvestment
earnings on such amounts, and all of the Depositor's right, title and interest
in and to the proceeds of any title, hazard or other Insurance Policies related
to such Loans and (ii) this Agreement shall constitute a security agreement
under applicable law. This Section 10.07 shall constitute notice to the Trustee
pursuant to any of the requirements of the applicable UCC.

            Section 10.08 Successors and Assigns; Beneficiaries.

            The provisions of this Agreement shall be binding upon and inure to
the benefit of the respective successors and assigns of the parties hereto, and
all such provisions shall inure to the benefit of the Certificateholders. The
Companion Loan Holders, Junior Loan Holders, and each party under a pooling and
servicing agreement, trust agreement or other agreement that sets forth the
terms of a securitization which holds any Junior Loan or Companion Loan are each
an intended third-party beneficiary in respect of the rights afforded it
hereunder. The Swap Counterparty is an intended third-party beneficiary in
respect of the rights afforded it hereunder. No other person, including, without
limitation, any Borrower, shall be entitled to any benefit or equitable right,
remedy or claim under this Agreement.

            In the event that one, but not both, of the Notes with respect to
the Ritz Carlton Mortgage Loan is repurchased, the holder of the repurchased
Note shall become a third party beneficiary of this Agreement to the same extent
as if it were a Companion Loan Holder, as contemplated by Section 3.34.

            Section 10.09 Article and Section Headings.

            The article and Section headings herein are for convenience of
reference only, and shall not limit or otherwise affect the meaning hereof.

            Section 10.10 Notices to Rating Agencies.

            (a) The Certificate Administrator (or the Trustee with respect to
items (ii) and (v) below) shall use reasonable efforts promptly to provide
notice to each Rating Agency with respect to each of the following of which a
Responsible Officer of the Certificate Administrator has actual knowledge:

            (i) any material change or amendment to this Agreement;

            (ii) the occurrence of any Event of Default that has not been cured;

            (iii) the resignation, termination, merger or consolidation of any
      Master Servicer or Special Servicer;

            (iv) any change in the location of the Distribution Account, the
      Grantor Trust Distribution Account, the Excess Liquidation Proceeds
      Account, the Floating Rate Account or the Interest Reserve Account;

            (v) the repurchase of Loans by or on behalf of any Mortgage Loan
      Seller pursuant to Section 7 of the related Mortgage Loan Purchase
      Agreement or pursuant to the Column Performance Guarantee; and

            (vi) the final payment to any Class of Certificateholders.

            (b) Each Master Servicer shall use reasonable efforts promptly to
provide notice to each Rating Agency and the Swap Counterparty with respect to
each of the following of which it has actual knowledge:

            (i) the resignation, merger, consolidation or removal of the Trustee
      or the Certificate Administrator; and

            (ii) any change in the location of such Master Servicer's Collection
      Account.

            (c) Each of the Master Servicers and Special Servicers shall
promptly furnish to each Rating Agency copies of the following (to the extent
not already delivered pursuant to the terms of this Agreement):

            (i) each of its annual statements as to compliance described in
      Section 11.12;

            (ii) all reports and other items for Loans delivered by such Master
      Servicer and Special Servicer, as the case may be, pursuant to Section
      3.12 (to the extent requested by such Rating Agency);

            (iii) each of its annual independent public accountants' servicing
      reports described in Section 11.13;

            (iv) each waiver and consent provided by such Master Servicer or
      Special Servicer, as the case may be, pursuant to Section 3.08 for Loans
      representing 2% or more of the pool balance;

            (v) any officers' certificates delivered by such Master Servicer or
      Special Servicer, as the case may be, to the Trustee or the Certificate
      Administrator (to the extent requested by such Rating Agency);

            (vi) all site inspections conducted by or on behalf of such Master
      Servicer or Special Servicer, as the case may be (to the extent requested
      by such Rating Agency);

            (vii) all operating statements collected or obtained by such Master
      Servicer or Special Servicer, as the case may be (to the extent requested
      by such Rating Agency);

            (viii) all rent rolls and sales reports (to the extent provided by
      the Borrowers to such Master Servicer or Special Servicer, as the case may
      be, and requested by such Rating Agency);

            (ix) any proposed no downgrade request by such Master Servicer or
      Special Servicer, as the case may be;

            (x) any extension or modification of the Maturity Date of any Loan
      by such Master Servicer or Special Servicer, as the case may be;

            (xi) any change in the lien priority on a mortgage loan;

            (xii) any modification, waiver or amendment of any material term of
      any Loan that exceeds $5,000,000 by such Master Servicer or Special
      Servicer, as the case may be; and

            (xiii) any other document in its possession that shall be reasonably
      requested by any Rating Agency.

            (d) Reserved.

            (e) The Certificate Administrator shall promptly after each
Distribution Date make available to each Rating Agency a copy of the related
Certificate Administrator Report.

                                   ARTICLE XI
             EXCHANGE ACT REPORTING AND REGULATION AB COMPLIANCE

              Section 11.01 Intent of the Parties; Reasonableness.

            Except with respect to Section 11.11, Section 11.12 and Section
11.13, the parties hereto acknowledge and agree that the purpose of Article XI
of this Agreement is to facilitate compliance by the Depositor with the
provisions of Regulation AB and related rules and regulations of the Commission.
The Depositor shall not exercise its rights to request delivery of information
or other performance under these provisions other than reasonably and in good
faith, or for purposes other than compliance with the Securities Act, the
Exchange Act, the Sarbanes-Oxley Act and, in each case, the rules and
regulations of the Commission thereunder. The parties hereto acknowledge that
interpretations of the requirements of Regulation AB may change over time,
whether due to interpretive guidance provided by the Commission or its staff,
consensus among participants in the asset-backed securities markets, advice of
counsel, or otherwise, and agree to comply with requests made by the Depositor
in good faith for delivery of information under these provisions on the basis of
evolving interpretations of the requirements of Regulation AB. In connection
with the Certificates, each of the parties to this Agreement shall cooperate
fully with the reasonable requests of the Depositor to deliver or make available
to the Depositor (including any of its assignees or designees), any and all
statements, reports, certifications, records and any other information in the
applicable Person's possession and necessary in the good faith determination of
the Depositor to permit the Depositor to comply with the provisions of
Regulation AB, together with such disclosures relating to the Master Servicers,
the Special Servicers, any Servicing Function Participant, the Certificate
Administrator and the Trustee, as applicable, or the Servicing of the Loans,
reasonably believed by the Depositor to be necessary in order to effect such
compliance. For the avoidance of doubt, none of the Master Servicers, the
Special Servicers or any Servicing Function Participant is responsible to make
filings with the Commission.

            Section 11.02 Reserved.

            Section 11.03 Information to be Provided by each Master Servicer,
the Special Servicers, the Trustee, the Certificate Administrator and each
Servicing Function Participant.

            (a) For so long as the Trust is subject to the reporting
requirements of the Exchange Act with respect to the Certificates, in connection
with the succession to any Master Servicer, any Special Servicer, any Servicing
Function Participant, the Certificate Administrator or the Trustee as a servicer
or trustee under this Agreement by any Person (i) into which such Master
Servicer, such Special Servicer, such Servicing Function Participant, the
Certificate Administrator or the Trustee may be merged or consolidated, or (ii)
which may be appointed as a successor to such Master Servicer, such Special
Servicer, any Servicing Function Participant, the Certificate Administrator or
the Trustee, such successor Person shall provide to the Depositor, at least 5
calendar days prior to the effective date of such succession or appointment (as
long as such disclosure prior to such effective date would not be violative of
any applicable law or confidentiality agreement, otherwise immediately following
such effective date, but no later than required pursuant to Section 11.09), (x)
written notice to the Certificate Administrator and the Depositor of such
succession or appointment and (y) in writing and in form and substance
reasonably satisfactory to the Certificate Administrator and the Depositor, all
information relating to such successor reasonably requested by the Depositor in
order to comply with its reporting obligation under Item 6.02 of Form 8-K with
respect to any Class of Certificates.

            Section 11.04 Reserved.

            Section 11.05 Filing Obligations.

            Each Master Servicer, each Special Servicer, the Certificate
Administrator and the Trustee shall, and each Master Servicer and each Special
Servicer, as applicable, shall use commercially reasonable efforts to cause each
Servicing Function Participant (other than any party to this Agreement) with
which it has entered into a servicing relationship with respect to the Loans to,
reasonably cooperate with the Certificate Administrator and the Depositor in
connection with the Certificate Administrator's and Depositor's good faith
efforts to satisfy the Trust's reporting requirements under the Exchange Act.

            Section 11.06 Form 10-D Filings.

            Within 15 days after each Distribution Date (subject to permitted
extensions under the Exchange Act), the Certificate Administrator shall prepare
and file on behalf of the Trust any Form 10-D required by the Exchange Act and
the rules and regulations of the Commission thereunder in form and substance as
required by the Exchange Act and the rules and regulations of the Commission
thereunder. The Certificate Administrator shall file each Form 10-D, pursuant to
the paragraph immediately succeeding, with a copy of the related Statement to
Certificateholders attached thereto. Any disclosure in addition to the Statement
to Certificateholders that is required to be included on Form 10-D ("Additional
Form 10-D Disclosure") shall, pursuant to the paragraph immediately succeeding,
(and to the extent not otherwise reported pursuant to any other provision of
this Agreement) be reported by the parties set forth on Exhibit V and approved
or disapproved, as the case may be, as to form and substance, by the Depositor,
and the Certificate Administrator shall have no duty or liability for any
failure hereunder to determine or prepare any Additional Form 10-D Disclosure
(other than such Additional Form 10-D Disclosure which is to be reported by it
as set forth on Exhibit V), absent such reporting and approval.

            For so long as the Trust is subject to the reporting requirements of
the Exchange Act, within 5 calendar days after the related Distribution Date,
(i) each party listed on Exhibit V hereto shall be required to provide to the
Certificate Administrator and the Depositor, to the extent a Servicing Officer
or Responsible Officer, as the case may be, thereof has actual knowledge (other
than Item 1117 of Regulation AB as to such party which shall be reported if
actually known by any Servicing Officer or Responsible Officer, as the case may
be, any lawyer in the in-house legal department or a senior manager of such
party), in EDGAR-compatible format, or in such other format as otherwise agreed
upon by the Certificate Administrator, the Depositor and such party, any
Additional Form 10-D Disclosure described on Exhibit V applicable to such party,
(ii) include with such Additional Form 10-D Disclosure, an Additional Disclosure
Notification substantially in the form attached hereto as Exhibit Y and (iii)
the Certificate Administrator shall, at any time prior to filing the related
Form 10-D, provide prompt notice to the Depositor to the extent that the
Certificate Administrator is notified of an event reportable on Form 10-D for
which it has not received the necessary Additional Form 10-D Disclosure from the
applicable party. No later than the 7th calendar day after the Distribution
Date, the Depositor will approve, as to form and substance, or disapprove, as
the case may be, the inclusion of the Additional Form 10-D Disclosure on Form
10-D. The Certificate Administrator has no duty under this Agreement to monitor
or enforce the performance by the parties listed on Exhibit V of their duties
under this paragraph or proactively solicit or procure from such parties any
Additional Form 10-D Disclosure information. The Depositor will be responsible
for any reasonable fees and expenses assessed or incurred by the Certificate
Administrator in connection with including any Additional Form 10-D Disclosure
on Form 10-D pursuant to this paragraph.

            After preparing the Form 10-D, the Certificate Administrator shall
forward electronically a draft copy of the Form 10-D to the Depositor for review
and approval; provided that the Certificate Administrator shall use its
reasonable best efforts to provide such copy to the Depositor by the 3rd
Business Day prior to the 15th calendar day after the related Distribution Date,
but in no event earlier than 24 hours after receipt of direction from the
Depositor regarding the inclusion of any Additional Form 10-D Disclosure
pursuant to the preceding paragraph. Within two Business Days after receipt of
such copy, but no later than the 12th calendar day after the Distribution Date,
the Depositor shall notify the Certificate Administrator in writing (which may
be furnished electronically) of any changes to or approval of such Form 10-D
and, a duly authorized representative of the Depositor shall sign the Form 10-D
and return an electronic or fax copy of such signed Form 10-D (with an original
executed hard copy to follow by overnight mail) to the Certificate
Administrator. Form 10-D requires the registrant to indicate (by checking "yes"
or "no") that it "(1) has filed all reports required to be filed by Section 13
or 15(d) of the Exchange Act during the preceding 12 months (or for such shorter
period that the registrant was required to file such reports), and (2) has been
subject to such filing requirements for the past 90 days". The Depositor hereby
instructs the Certificate Administrator, with respect to each Form 10-D, to
check "yes" for each item unless the Certificate Administrator has received
timely prior written notice from the Depositor that the answer should be "no"
for an item. The Certificate Administrator shall file such Form 10-D, upon
signature thereof as provided in Section 11.16, not later than (i) 5:30 pm (New
York City time) on the 15th calendar day after the related Distribution Date or
(ii) such other time as the Depositor and the Certificate Administrator mutually
agree is permitted by the Commission for the filing such Form 10-D. If a Form
10-D cannot be filed on time or if a previously filed Form 10-D needs to be
amended, the Certificate Administrator will follow the procedures set forth in
Section 11.10(b). Promptly, but no later than one Business Day after filing with
the Commission, the Certificate Administrator shall, pursuant to Section
4.02(c), make available on its internet website a final executed copy of each
Form 10-D prepared and filed by the Certificate Administrator. The parties to
this Agreement acknowledge that the performance by the Certificate Administrator
of its duties under this Section 11.06 related to the timely preparation and
filing of Form 10-D is contingent upon such parties observing all applicable
deadlines in the performance of their duties under this Section 11.06. The
Certificate Administrator shall have no liability for any loss, expense, damage,
claim arising out of or with respect to any failure to properly prepare, arrange
for execution and/or file such Form 10-D where such failure results from the
Certificate Administrator's inability or failure to receive on a timely basis
any information from any other party hereto needed to prepare, arrange for
execution or file such Form 10-D, not resulting from its own negligence, bad
faith or willful misconduct.

            Section 11.07 Form 10-K Filings.

            Within 90 days after the end of each fiscal year of the Trust or
such earlier date as may be required by the Exchange Act (the "10-K Filing
Deadline") (it being understood that the fiscal year for the Trust ends on
December 31st of each year), commencing in March 2007, the Certificate
Administrator shall prepare and file on behalf of the Trust a Form 10-K, in form
and substance as required by the Exchange Act. Each such Form 10-K shall include
the following items, in each case to the extent they have been delivered to the
Certificate Administrator within the applicable time frames set forth in this
Agreement, (i) an annual compliance statement for each applicable Reporting
Servicer, as described under Section 11.11, (ii)(A) the annual reports on
assessment of compliance with servicing criteria for each applicable Reporting
Servicer, as described under Section 11.12, and (B) if any Reporting Servicer's
report on assessment of compliance with servicing criteria described under
Section 11.12 identifies any material instance of noncompliance, disclosure
identifying such instance of noncompliance, or if any Reporting Servicer's
report on assessment of compliance with servicing criteria described under
Section 11.12 is not included as an exhibit to such Form 10-K, disclosure that
such report is not included and an explanation as to why such report is not
included, (iii)(A) the registered public accounting firm attestation report for
each Reporting Servicer, as described under Section 11.13, and (B) if any
registered public accounting firm attestation report described under Section
11.13 identifies any material instance of noncompliance, disclosure identifying
such instance of noncompliance, or if any such registered public accounting firm
attestation report is not included as an exhibit to such Form 10-K, disclosure
that such report is not included and an explanation as to why such report is not
included, and (iv) a Sarbanes-Oxley Certification as described in Section 11.08.
Any disclosure or information in addition to (i) through (iv) above that is
required to be included on Form 10-K ("Additional Form 10-K Disclosure") shall,
pursuant to the paragraph immediately succeeding, be reported by the parties set
forth on Exhibit W and approved or disapproved, as the case may be, as to form
and substance, by the Depositor, and the Certificate Administrator will have no
duty or liability for any failure hereunder to determine or prepare any
Additional Form 10-K Disclosure absent such reporting or approval. However,
where information from such other party for inclusion in a Form 10-K is not
received on a timely basis, but is subsequently provided within a time period
that may allow for the timely filing of the applicable Form 10-K or an amendment
thereto, then the Certificate Administrator shall use reasonable efforts to
properly prepare, arrange for execution and file such Form 10-K or amendment
thereto.

            For so long as (but only for so long as) the Trust is subject to the
reporting requirements of the Exchange Act, no later than March 15, commencing
in March 2007 (i) each party listed on Exhibit W hereto shall be required to
provide to the Certificate Administrator and the Depositor, to the extent a
Servicing Officer or a Responsible Officer, as the case may be, thereof has
actual knowledge (other than with respect to disclosure required pursuant to
Items 1117 and 1119 of Regulation AB as to such party which shall be reported if
actually known by any Servicing Officer, any lawyer in the in-house legal
department or a senior manager of such party), in EDGAR-compatible format, or in
such other form as otherwise agreed upon by the Certificate Administrator, the
Depositor and such party, any Additional Form 10-K Disclosure described on
Exhibit W applicable to such party, (ii) include with such Additional Form 10-K
Disclosure, an Additional Disclosure Notification substantially in the form
attached hereto as Exhibit Y and (iii) the Certificate Administrator shall, at
any time prior to filing the related Form 10-K, provide prompt notice to the
Depositor to the extent that the Certificate Administrator is notified of an
event reportable on Form 10-K for which it has not received the necessary
Additional Form 10-K Disclosure from the applicable party. No later than March
15th, the Depositor will approve, as to form and substance, or disapprove, as
the case may be, the inclusion of the Additional Form 10-K Disclosure on Form
10-K. Other than with respect to itself, the Certificate Administrator has no
duty under this Agreement to monitor or enforce the performance by the parties
listed on Exhibit W of their duties under this paragraph or proactively solicit
or procure from such parties any Additional Form 10-K Disclosure information.
The Depositor will be responsible for any reasonable fees and expenses assessed
or incurred by the Certificate Administrator in connection with including any
Additional Form 10-K Disclosure on Form 10-K pursuant to this paragraph.

            After preparing the Form 10-K, the Certificate Administrator shall
forward electronically a copy of the Form 10-K to the Depositor for review.
Within three Business Days after receipt of such copy, but no later than March
25th, the Depositor shall notify the Certificate Administrator in writing (which
may be furnished electronically) of any changes to or approval of such Form
10-K. No later than 5:00 p.m. EST on the 4th Business Day prior to the 10-K
Filing Deadline, a senior officer in charge of securitization of the Depositor
shall sign the Form 10-K and return an electronic or fax copy of such signed
Form 10-K (with an original executed hard copy to follow by overnight mail) to
the Certificate Administrator . Form 10-K requires the registrant to indicate
(by checking "yes" or "no") that it "(1) has filed all reports required to be
filed by Section 13 or 15(d) of the Exchange Act during the preceding 12 months
(or for such shorter period that the registrant was required to file such
reports), and (2) has been subject to such filing requirements for the past 90
days". The Depositor hereby instructs the Certificate Administrator, with
respect to each Form 10-K, to check "yes" for each item unless the Certificate
Administrator has received timely prior written notice from the Depositor that
the answer should be "no" for an item. If a Form 10-K cannot be filed on time or
if a previously filed Form 10-K needs to be amended, the Certificate
Administrator will follow the procedures set forth in Section 11.10(b). After
filing with the Commission, the Certificate Administrator shall, pursuant to
Section 4.02(c), make available on its internet website a final executed copy of
each Form 10-K filed by the Certificate Administrator. The parties to this
Agreement acknowledge that the performance by the Certificate Administrator of
its duties under this Section 11.07 related to the timely preparation and filing
of Form 10-K is contingent upon such parties (and any Additional Servicer or
Servicing Function Participant) observing all applicable deadlines in the
performance of their duties under this Article XI. The Certificate Administrator
shall have no liability with respect to any failure to properly prepare and/or
file such Form 10-K resulting from the Certificate Administrator's inability or
failure to receive from any other party any information needed to prepare,
arrange for execution or file such Form 10-K on a timely basis, not resulting
from its own negligence, bad faith or willful misconduct.

            Section 11.08 Sarbanes-Oxley Certification.

            Each Form 10-K shall include a certification (the "Sarbanes-Oxley
Certification") as set forth in Exhibit L-1 attached hereto, required to be
included therewith pursuant to the Sarbanes-Oxley Act. Each Reporting Servicer
shall, and each Master Servicer, each Special Servicer, the Certificate
Administrator and the Trustee shall use reasonable efforts to cause each
Servicing Function Participant with which it has entered into a servicing
relationship with respect to the Loans (other than any party to this Agreement
and any Sub-Servicer listed on Exhibit K hereto) to, provide to the Person who
signs the Sarbanes-Oxley Certification (the "Certifying Person") by no later
than March 15th of each year in which the Trust is subject to the reporting
requirements of the Exchange Act and otherwise within a reasonable period of
time upon request, a certification (each, a "Performance Certification"), in the
form attached hereto as Exhibit L-2, L-3 or L-4, on which the Certifying Person,
the entity for which the Certifying Person acts as an officer, and such entity's
officers, directors and Affiliates (collectively with the Certifying Person,
"Certification Parties") can reasonably rely. The senior officer in charge of
the securitization of the Depositor shall serve as the Certifying Person on
behalf of the Trust. Such officer of the Certifying Person can be contacted at
11 Madison Avenue, New York, NY 10010. If any Reporting Servicer is terminated
or resigns pursuant to the terms of this Agreement, or any applicable
sub-servicing agreement or primary servicing agreement, as the case may be, such
Reporting Servicer shall provide a certification to the Certifying Person
pursuant to this Section 11.08 with respect to the period of time it was subject
to this Agreement or the applicable sub-servicing or primary servicing
agreement, as the case may be. Notwithstanding the foregoing, nothing in this
paragraph shall require any Reporting Servicer (i) to certify or verify the
accurateness or completeness of any information provided to such Reporting
Servicer by third parties, (ii) to certify information other than to such
Reporting Servicer's knowledge and in accordance with such Reporting Servicer's
responsibilities hereunder or (iii) with respect to completeness of information
and reports, to certify anything other than that all fields of information
called for in written reports prepared by such Reporting Servicer have been
completed except as they have been left blank on their face.

            Each Performance Certification shall include a reasonable reliance
statement by the Reporting Servicer enabling the Certification Parties to rely
upon each (i) annual compliance statement provided by such Reporting Servicer
pursuant to Section 11.11, (ii) annual report on assessment of compliance with
servicing criteria provided by such Reporting Servicer pursuant to Section 11.12
and (iii) registered public accounting firm attestation report provided by such
Reporting Servicer pursuant to Section 11.13.

            Section 11.09 Form 8-K Filings.

            Within four (4) Business Days after the occurrence of an event
requiring disclosure under Form 8-K (each a "Reportable Event"), and, if
requested by the Depositor and to the extent it receives the Form 8-K Disclosure
Information described below, the Certificate Administrator shall prepare and
file on behalf of the Trust any Form 8-K as required by the Exchange Act
provided that the Depositor shall file the initial Form 8-K in connection with
the issuance of the Certificates. Any disclosure or information related to a
Reportable Event or that is otherwise required to be included on Form 8-K ("Form
8-K Disclosure Information") shall, pursuant to the paragraph immediately
succeeding, be reported by the parties set forth on Exhibit X and approved or
disapproved, as the case may be, by the Depositor and the Certificate
Administrator shall have no duty or liability for any failure hereunder to
determine or prepare any Form 8-K Disclosure Information (other than such Form
8-K Disclosure Information which is to be reported by it as set forth on Exhibit
X) absent such reporting and approval.

            For so long as (but only for so long as) the Trust is subject to the
reporting requirements of the Exchange Act, (i) the parties listed on Exhibit X
hereto shall, to the extent a Servicing Officer or a Responsible Officer, as the
case may be, thereof has actual knowledge (or any officer thereof with respect
to Items 1117 and 1119 or Regulation AB as to such party), use their reasonable
efforts to provide to the Depositor and the Certificate Administrator within 1
Business Day after the occurrence of the Reportable Event, but shall provide in
no event later than noon (New York City time) on the 2nd Business Day after the
occurrence of the Reportable Event, any Form 8-K Disclosure Information
described on Exhibit X as applicable to such party, in EDGAR-compatible format,
or in such other format as otherwise agreed upon by the Certificate
Administrator, the Depositor and such party, and (ii) include with such
Additional Form 8-K Disclosure, an Additional Disclosure Notification
substantially in the form attached hereto as Exhibit Y. The Depositor will
approve, as to form and substance, or disapprove, as the case may be, the
inclusion of the Form 8-K Disclosure Information on Form 8-K no later than 6
p.m. on the second business Day after the Reportable Event. The Certificate
Administrator has no duty under this Agreement to monitor or enforce the
performance by the parties listed on Exhibit X of their duties under this
paragraph or proactively solicit or procure from such parties any Form 8-K
Disclosure Information. Any notice delivered to the Certificate Administrator
pursuant to this paragraph shall be delivered by facsimile to 312-904-2084 and
by email to edgar@abnamro.com, or such other address as may hereafter be
furnished by the Certificate Administrator to such other parties in writing. The
Depositor will be responsible for any reasonable fees and expenses assessed or
incurred by the Certificate Administrator in connection with including any Form
8-K Disclosure Information on Form 8-K pursuant to this paragraph.

            After preparing the Form 8-K, the Certificate Administrator shall
forward electronically a copy of the Form 8-K to the Depositor for review.
Promptly, but no later than the close of business on the third Business Day
after the Reportable Event, the Depositor shall notify the Certificate
Administrator in writing (which may be furnished electronically) of any changes
to or approval of such Form 8-K. No later than noon (Eastern time) on the 4th
Business Day after the Reportable Event, a duly authorized representative of the
Depositor shall sign the Form 8-K and return an electronic or fax copy of such
signed Form 8-K (with an original executed hard copy to follow by overnight
mail) to the Certificate Administrator. If a Form 8-K cannot be filed on time or
if a previously filed Form 8-K needs to be amended, the Certificate
Administrator will follow the procedures set forth in Section 11.10(b). After
filing with the Commission, the Certificate Administrator will, pursuant to
Section 4.02(c), make available on its internet website a final executed copy of
each Form 8-K filed by the Certificate Administrator. The parties to this
Agreement acknowledge that the performance by the Certificate Administrator of
its duties under this Section 11.09 related to the timely preparation and filing
of Form 8-K is contingent upon such parties observing all applicable deadlines
in the performance of their duties under this Section 11.09. The Certificate
Administrator shall have no liability for any loss, expense, damage, claim
arising out of or with respect to any failure to properly prepare and/or timely
file such Form 8-K, where such failure results from the Certificate
Administrator's inability or failure to receive, on a timely basis, any
information from any other party hereto needed to prepare, arrange for execution
or file such Form 8-K and not resulting from the Certificate Administrator's own
negligence, bad faith or willful misconduct.

            Section 11.10 Form 15 Filing; Incomplete Exchange Act Filings;
Amendments to Exchange Act Reports.

            (a) On or before January 30 of the first year in which the
Certificate Administrator is able to do so under applicable law, the Certificate
Administrator shall prepare and file a Form 15 Suspension Notification relating
to the automatic suspension of reporting in respect of the Trust under the
Exchange Act, and shall provide notice to the other parties hereto in the event
such filing is not accomplished. After the filing of Form 15, the obligations of
the parties to this Agreement under Sections 11.01, 11.03, 11.05, 11.06, 11.07,
11.08 and 11.09 shall be suspended.

            (b) The Certificate Administrator shall promptly notify (which
notice, notwithstanding the provisions of Section 10.05, may be sent by
facsimile or by email and which shall include the identity of the Master
Servicers, Special Servicers or the Trustee who did not deliver such
information) the Depositor and the Depositor shall notify each Master or Special
Servicer that failed to deliver such information, if all, or any portion of, any
required disclosure information to be included in any Form 8-K, Form 10-D or
Form 10-K required to be filed pursuant to this Agreement is not delivered to it
within the delivery deadlines set forth in this Agreement (exclusive of any
grace or cure periods), but only to the extent the Certificate Administrator has
actual knowledge that the applicable Master Servicer or Special Servicer is
required to provide such disclosure information. If the Certificate
Administrator is unable to timely file with the Commission all or any required
portion of any Form 8-K, Form 10-D or Form 10-K required to be filed by this
Agreement because required disclosure information was either not delivered to it
or delivered to it after the delivery deadlines set forth in this Agreement or
for any other reason, the Certificate Administrator shall promptly notify the
Depositor of such inability to make a timely filing with the Commission. In the
case of Forms 10-D and 10-K, the parties hereto, as necessary, shall cooperate
with the Depositor and the Certificate Administrator to prepare and file a Form
12b-25 and a Form 10-D/A and Form 10-K/A as applicable, pursuant to Rule 12b-25
of the Exchange Act. In the case of Form 8-K, the Certificate Administrator
shall, upon receipt of all required Form 8-K Disclosure Information and upon the
approval and direction of the Depositor, include such disclosure information on
the next Form 10-D. In the event that any previously filed Form 8-K, Form 10-D
or Form 10-K needs to be amended, the Certificate Administrator will, in the
case of any such amended forms relating to Additional Form 10-D Disclosure or to
Additional Form 10-K Disclosure, notify the Depositor, and the Depositor shall
notify each Master or Special Servicer and such parties shall cooperate (only to
the extent information regarding, or an action of, such party is any part of the
reason for such amendment) to prepare any necessary 8-K/A, Form 10-D/A or Form
10-K/A. Any Form 15, Form 12b-25 or any amendment to Form 8-K, Form 10-D or Form
10-K shall be signed, in the case of Form 15, Form 12b-25 or any amendments to
Form 8-K or Form 10-D, by a duly authorized officer of the Depositor, and in the
case of Form 10-K, by a senior officer of the Depositor in charge of
securitization. The Depositor, the Master Servicers and the Special Servicers
acknowledge that the performance by the Certificate Administrator of its duties
under this Section 11.10 related to the timely preparation and filing of Form
15, a Form 12b-25 or any amendment to Form 8-K, Form 10-D or Form 10-K is
contingent upon the Master Servicers, the Depositor and the Special Servicers
performing their duties under this Section. The Certificate Administrator shall
have no liability for any loss, expense, damage, claim arising out of or with
respect to any failure to properly prepare and/or timely file any such Form 15,
Form 12b-25 or any amendments to Forms 8-K, 10-D or 10-K, where such failure
results from the Certificate Administrator's inability or failure to receive, on
a timely basis, any information from any other party hereto needed to prepare,
arrange for execution or timely file such Form 15, Form 12b-25 or any amendments
to Forms 8-K, 10-D or 10-K, not resulting from its own negligence, bad faith or
willful misconduct.

            Section 11.11 Annual Compliance Statements.

            Each Master Servicer, each Special Servicer, the Certificate
Administrator, the Trustee and each Servicing Function Participant (if such
Servicing Function Participant is a servicer contemplated by Item 1108(a)(2)(i),
(ii) or (iii) of Regulation AB) (each a "Certifying Servicer") shall, and the
Master Servicer, each Special Servicer, the Certificate Administrator and the
Trustee shall use commercially reasonable efforts to cause each Additional
Servicer and each Servicing Function Participant (if such Servicing Function
Participant is a servicer contemplated by Item 1108(a)(2)(i), (ii) or (iii) of
Regulation AB) with which it has entered into a servicing relationship with
respect to the Loans (other than any party to this Agreement and any
Sub-Servicer listed on Exhibit K hereto) to, deliver to the Depositor and the
Certificate Administrator on or before March 15th of each year (with no grace
period), commencing in March 2007, an Officer's Certificate stating, as to the
signer thereof, that (A) a review of such Certifying Servicer's activities
during the preceding fiscal year or portion thereof and of such Certifying
Servicer's performance under this Agreement (or the applicable sub-servicing
agreement, as the case may be), has been made under such officer's supervision
and (B) to the best of such officer's knowledge, based on such review, such
Certifying Servicer has fulfilled all its obligations under this Agreement, or
the applicable sub-servicing agreement or primary servicing agreement in the
case of an Additional Servicer, in all material respects throughout such year or
portion thereof, or, if there has been a failure to fulfill any such obligation
in any material respect, specifying each such failure known to such officer and
the nature and status thereof. Each Certifying Servicer shall forward a copy of
each such statement to the Controlling Class Certificateholder. Promptly after
receipt of each such Officer's Certificate, the Depositor shall have the right
to review such Officer's Certificate and, if applicable, consult with each
Certifying Servicer, as applicable, as to the nature of any failures by such
Certifying Servicer in the fulfillment of any of the Certifying Servicer's
obligations hereunder or under the applicable sub-servicing agreement. None of
the Certifying Servicers or any Additional Servicer or Servicing Function
Participant shall be required to deliver, or to endeavor to cause the delivery
of any such Officer's Certificates until April 30 in any given year, so long as
a Form 10-K is not required to be filed in respect of the Trust for the
preceding fiscal year.

            Section 11.12 Annual Reports on Assessment of Compliance with
Servicing Criteria.

            By March 15 (with no cure period) of each year in which the Trust is
required to file a Form 10-K for the preceding fiscal year, commencing in March
2007, or April 30 of each year in which the Trust is not required to file a Form
10-K for the preceding fiscal year, each Master Servicer, each Special Servicer
(regardless of whether a Special Servicer has commenced special servicing of any
Loan), the Certificate Administrator, the Trustee and each Servicing Function
Participant, each at its own expense, shall furnish, and each of the preceding
parties, as applicable, shall use reasonable efforts to cause each other
Servicing Function Participant (other than any party to this Agreement and any
Sub-Servicer listed on Exhibit K hereto) with which it has entered into a
servicing relationship with respect to the Loans to furnish, each at its own
expense, to the Certificate Administrator and the Depositor, a report on an
assessment of compliance with the Relevant Servicing Criteria for the preceding
fiscal year that contains (A) a statement by such Reporting Servicer of its
responsibility for assessing compliance with the Relevant Servicing Criteria,
(B) a statement that such Reporting Servicer used the Servicing Criteria to
assess compliance with the Relevant Servicing Criteria, (C) such Reporting
Servicer's assessment of compliance with the Relevant Servicing Criteria as of
and for the period ending the end of the fiscal year covered by the Form 10-K
required to be filed pursuant to Section 11.07, including, if there has been any
material instance of noncompliance with the Relevant Servicing Criteria, a
discussion of each such failure and the nature and status thereof, and (D) a
statement that a registered public accounting firm has issued an attestation
report on such Reporting Servicer's assessment of compliance with the Relevant
Servicing Criteria as of and for such period.

            No later than ten (10) Business Days after the end of each fiscal
year for the Trust for which a Form 10-K is required to be filed, each Master
Servicer, each Special Servicer, the Certificate Administrator and the Trustee
shall each forward to the Certificate Administrator and the Depositor the name
and address of each Servicing Function Participant engaged by it during such
fiscal year or portion thereof (except for any Servicing Function Participant
listed on Exhibit K hereto) and what Relevant Servicing Criteria will be
addressed in the report on assessment of compliance prepared by such Servicing
Function Participant. When the Master Servicers, Special Servicers, the
Certificate Administrator, the Trustee and each Servicing Function Participant
submit their respective assessments to the Certificate Administrator and the
Depositor, each such party shall also at such time, if it has received the
assessment (and attestation required pursuant to Section 11.13) of each
Servicing Function Participant engaged by it, include such assessment (and
attestation) in its submission to the Certificate Administrator.

            Promptly after receipt of each such report on assessment of
compliance, (i) the Depositor shall have the right to review each such report
and, if applicable, consult with the Master Servicers, the Special Servicers,
the Certificate Administrator, the Trustee and any Servicing Function
Participant as to the nature of any material instance of noncompliance with the
Relevant Servicing Criteria by the applicable Master Servicer, Special Servicer,
the Certificate Administrator, the Trustee or any Servicing Function
Participant, and (ii) the Certificate Administrator shall confirm that the
assessments, taken individually address the Relevant Servicing Criteria for each
party as set forth on Exhibit U and notify the Depositor of any exceptions. None
of the Master Servicers, the Special Servicer, the Certificate Administrator,
the Trustee or any Servicing Function Participant shall be required to deliver,
or to endeavor to cause the delivery of, any such reports until April 15 in any
given year that a Form 10-K is not required to be filed in respect of the Trust
for the preceding fiscal year.

            The parties hereto acknowledge that a material instance of
noncompliance with the Relevant Servicing Criteria reported on an assessment of
compliance pursuant to this Section 11.12 by the Master Servicer, the Special
Servicer, the Trustee or the Certificate Administrator shall not, as a result of
being so reported, in and of itself, constitute a breach of such parties'
obligations, as applicable, under this Agreement unless otherwise provided for
in this Agreement.

            Section 11.13 Annual Independent Public Accountants' Attestation.

            By March 15 of each year in which the Trust is required to file a
Form 10-K for the preceding fiscal year, commencing in March 2007, or April 30
of each year in which the Trust is not required to file a Form 10-K for the
preceding fiscal year, each Master Servicer, each Special Servicer, the
Certificate Administrator and the Trustee, each at its own expense, shall use
reasonable efforts to cause, and each of the preceding parties, as applicable,
shall use commercially reasonable efforts to cause each other Servicing Function
Participant with which it has entered into a servicing relationship with respect
to the Loans (other than any party to this Agreement and any Sub-Servicer listed
on Exhibit K hereto) to cause, each at its own expense, a registered public
accounting firm (which may also render other services to the applicable Master
Servicer, the Special Servicer, the Certificate Administrator, the Trustee or
such other Servicing Function Participant, as the case may be) and that is a
member of the American Institute of Certified Public Accountants to furnish a
report to the Certificate Administrator and the Depositor for the preceding
fiscal year, to the effect that (i) it has obtained a representation regarding
certain matters from the management of such Reporting Servicer, which includes
an assessment from such Reporting Servicer of its compliance with the Relevant
Servicing Criteria and (ii) on the basis of an examination conducted by such
firm in accordance with standards for attestation engagements issued or adopted
by the PCAOB, it is expressing an opinion as to whether such Reporting
Servicer's compliance with the Relevant Servicing Criteria was fairly stated in
all material respects, or it cannot express an overall opinion regarding such
Reporting Servicer's assessment of compliance with the Relevant Servicing
Criteria. If an overall opinion cannot be expressed, such registered public
accounting firm shall state in such report why it was unable to express such an
opinion. Such report must be available for general use and not contain
restricted use language.

            Promptly after receipt of such report from the applicable Master
Servicer, Special Servicer, the Trustee, the Certificate Administrator or any
Servicing Function Participant with which it has entered into a servicing
relationship with respect to the Mortgage Loans (other than a party to this
Agreement and any Sub-Servicer listed on Exhibit K hereto), (i) the Depositor
shall have the right to review the report and, if applicable, consult with the
applicable Master Servicer, the Special Servicer, the Certificate Administrator,
the Trustee or any such Servicing Function Participant as to the nature of any
material instance of noncompliance by such Master Servicer, the Special
Servicer, the Certificate Administrator, the Trustee or any such Servicing
Function Participant with the Relevant Servicing Criteria, as the case may be,
in the fulfillment of any of the applicable Master Servicer's, the Special
Servicer's, the Certificate Administrator's, the Trustee's or the applicable
Servicing Function Participant's obligations hereunder or under any applicable
sub-servicing agreement, and (ii) the Certificate Administrator shall confirm
that each assessment submitted pursuant to Section 11.12 is coupled with an
attestation meeting the requirements of this Section and notify the Depositor of
any exceptions. None of the Master Servicers, the Special Servicers, the
Certificate Administrator, the Trustee nor any Servicing Function Participant
shall be required to deliver, or to endeavor to cause the delivery of, such
reports until April 30 in any given year so long as a Form 10-K is not required
to be filed in respect of the Trust for the preceding fiscal year.

            Section 11.14 Exchange Act Reporting Indemnification.

            Each of the Master Servicers, the Special Servicers, the Certificate
Administrator and the Trustee shall indemnify and hold harmless each
Certification Party, the Depositor and their respective directors and officers,
and each other person who controls any such entity within the meaning of either
Section 15 of the Securities Act or Section 20 of the Exchange Act, from and
against any losses, damages, penalties, fines, forfeitures, reasonable legal
fees and expenses and related costs, judgments and other costs and expenses
incurred by such Certification Party arising out of (i) an actual breach of its
obligations under this Article XI or (ii) negligence, bad faith or willful
misconduct on its part in the performance of such obligations.

            The Master Servicers, the Special Servicers, the Certificate
Administrator and the Trustee shall use commercially reasonable efforts to cause
each Servicing Function Participant with which, in each case, it has entered
into a servicing relationship with respect to the Loans (other than any party to
this Agreement and any Sub-Servicer listed on Exhibit K hereto) to indemnify and
hold harmless each Certification Party from and against any losses, damages,
penalties, fines, forfeitures, reasonable legal fees and expenses and related
costs, judgments and other costs and expenses incurred by such Certification
Party arising out of (i) a breach of its obligations to provide any of the
annual compliance statements or annual assessment of servicing criteria or
attestation reports pursuant to this Agreement, or the applicable sub-servicing
or primary servicing agreement, as applicable, or (ii) negligence, bad faith or
willful misconduct on its part in the performance of such obligations
thereunder.

            If the indemnification provided for herein is unavailable or
insufficient to hold harmless any Certification Party, then each Master
Servicer, Special Servicer, Additional Servicer or other Servicing Function
Participant (the "Performing Party") shall contribute, as applicable, to the
amount paid or payable to the Certification Party as a result of the losses,
claims, damages or liabilities of the Certification Party in such proportion as
is appropriate to reflect the relative fault of the Certification Party on the
one hand and the Performing Party on the other in connection with a breach of
the Performing Party's obligations pursuant to this Article XI (or breach of its
representations or obligations under the applicable sub-servicing or primary
servicing agreement to provide any of the annual compliance statements or annual
servicing criteria compliance reports or attestation reports) or the Performing
party's negligence, bad faith or willful misconduct in connection therewith. The
applicable Master Servicer, Special Servicer, the Certificate Administrator and
the Trustee shall use reasonable best efforts to cause each Servicing Function
Participant with which it has entered into a servicing relationship (other than
any party to this Agreement and any Sub-Servicer listed on Exhibit K hereto)
with respect to the Loans to agree to the foregoing indemnification and
contribution obligations.

            Promptly after receipt by an indemnified party of notice of the
commencement of any action, such indemnified party shall, if a claim in respect
thereof is to be made against the indemnifying party hereunder, notify in
writing the indemnifying party of the commencement thereof; but the omission to
so notify the indemnifying party shall not relieve it from any liability which
it may have to any indemnified party under this Agreement except to the extent
that such omission to notify materially prejudices the indemnifying party. In
case any such action is brought against any indemnified party, after the
indemnifying party has been notified of the commencement of such action, such
indemnifying party shall be entitled to participate therein (at its own expense)
and, to the extent that it may wish, shall be entitled to assume the defense
thereof (jointly with any other indemnifying party similarly notified) with
counsel reasonably satisfactory to such indemnified party (who shall not, except
with the consent of the indemnified party, be counsel to the indemnifying
party), and after notice from the indemnifying party to such indemnified party
of its election to so assume the defense thereof, the indemnifying party shall
not be liable to such indemnified party for any expenses subsequently incurred
in connection with the defense thereof other than reasonable costs of
investigation. In any such proceeding, any indemnified party shall have the
right to retain its own counsel, but the fees and expenses of such counsel shall
be at the expense of such indemnified party unless (i) the indemnifying party
and the indemnified party shall have agreed to the retention of such counsel,
(ii) the named parties to any such proceeding (including any impleaded parties)
include both the indemnifying party and the indemnified party and representation
of both parties by the same counsel would be inappropriate due to actual or
potential differing interests between them or (iii) the indemnifying party fails
within a reasonable period of time to designate counsel that is reasonably
satisfactory to the indemnified party. In no event shall the indemnifying
parties be liable for fees and expenses of more than one counsel (in addition to
any local counsel) in any one jurisdiction separate from their own counsel for
all indemnified parties in connection with any one action or separate but
similar or related actions in the same jurisdiction arising out of the same
general allegations or circumstances. An indemnifying party shall not be liable
for any settlement of any proceeding effected without its written consent.
However, if settled with such consent, the indemnifying party shall indemnify
the indemnified party from and against any loss or liability by reason of such
settlement to the extent that the indemnifying party is otherwise required to do
so under this Agreement. If an indemnifying party assumes the defense of any
proceeding, it shall be entitled to settle such proceeding with the consent of
the indemnified party (which consent shall not be unreasonably withheld) or, if
such settlement (i) provides for an unconditional release of the indemnified
party in connection with all matters relating to the proceeding that have been
asserted against the indemnified party in such proceeding by the other parties
to such settlement and (ii) does not require an admission of fault by the
indemnified party, without the consent of the indemnified party.

            Section 11.15 Amendments.

            Nothing contained in this Article XI shall be construed to require
any party to this Agreement other than the Depositor, or any of such party's
officers, to execute any Form 10-K. The failure of any party to this Agreement
other than the Depositor, or any of such party's officers, to execute any Form
10-K shall not be regarded as a breach by such party of any of its obligations
under this Agreement. This Article XI may be amended by the parties hereto
pursuant to Section 11.01 for purposes of complying with Regulation AB and/or to
conform to standards developed within the commercial mortgage backed securities
market, without any Opinions of Counsel, Officer's Certificates, Rating Agency
Confirmations or the consent of any Certificateholder, notwithstanding anything
to the contrary contained in this Agreement, provided however, no such amendment
shall modify the obligations of Master Servicer or Special Servicer under
Section 10.10(c) hereunder, provided, further, that certificates and reports (or
substantially similar certificates and reports) required to be delivered
pursuant to Section 11.11, Section 11.12 and Section 11.13 will continue to be
required regardless of any such amendment to this Agreement.

            Section 11.16 Exchange Act Report Signatures; Delivery of Notices;
Interpretation of Grace Periods.

            (a) Each Form 8-K report, Form 10-D report and Form 10-K report
shall be signed by the Depositor in accordance with this Agreement and any other
procedures to be agreed upon by the Depositor and the Certificate Administrator.
The signing party at the Depositor can be contacted at Credit Suisse First
Boston Mortgage Securities Corp. at 11 Madison Avenue, New York, New York 10010,
Attention: Jeffrey Altabef, with a copy to Casey McCutcheon, Esq. and the
signing party at the Certificate Administrator, if applicable, can be contacted
at LaSalle Bank National Association, 135 South LaSalle Street, Suite 1625,
Chicago, Illinois 60603, Attention: Global Securities and Trust Services, CSFB
2006-C4.

            (b) Notwithstanding anything in Section 10.05 to the contrary, any
notice required to be delivered to the Depositor under this Article XI shall be
properly given if sent by facsimile to (212) 743-5227 Attention: Jeffrey Altabef
(or such other number as the Depositor may instruct) and by email to
Jeffrey.altabef@credit-suisse.com (or such other email address as the Depositor
may instruct).

            (c) For the avoidance of doubt::

            (i) No Master Servicer or Special Servicer shall be subject to an
      Event of Default, as applicable, pursuant to Section 7.01(a)(xi) of this
      Agreement nor shall any such party be deemed to not be in compliance under
      this Agreement, prior to the date which causes Certificate Administrator
      to be delinquent in any filing obligation provided for under this Article
      XI, provided, that if any such party fails to comply with the delivery
      requirements of this Article XI which prevents the Certificate
      Administrator from making any required filing, such failure shall
      constitute an Event of Default; and

            (ii) No Master Servicer or Special Servicer shall be subject to an
      Event of Default, pursuant to pursuant to Section 7.01(a)(xi) of this
      Agreement nor shall any such party be deemed to not be in compliance under
      this Agreement, for failing to deliver any item required under this
      Article XI by the time required hereunder with respect to any reporting
      period for which the Trust is not required to file Exchange Act reports
      (which reporting periods will include any occurring after the Certificate
      Administrator files the Form 15 relating to the automatic suspension of
      reporting in respect of the Trust under the Exchange Act).

            Section 11.17 Termination of the Certificate Administrator.

            Notwithstanding anything to the contrary contained in this
Agreement, the Depositor may immediately terminate the Certificate Administrator
if the Certificate Administrator fails to comply with any of its obligations
under this Article XI; provided that (a) such termination shall not be effective
until a successor Certificate Administrator shall have accepted the appointment,
(b) the Certificate Administrator may not be terminated if it cannot perform its
obligations due to its failure to properly prepare, arrange for execution or
file on a timely basis any Form 8-K, Form 10-K or Form 10-D or any amendments to
such forms, any Form 15 or any Form 12b-25 where such failure results from the
Certificate Administrator's inability or failure to receive, within the exact
time frames set forth in this Agreement any information, approval, direction or
signature from any other party hereto needed to prepare, arrange for execution
or timely file any such Form 8-K, Form 10-K or Form 10-D or any amendments to
such forms or any form 12b-25 not resulting from its own negligence, bad faith
or willful misconduct, (c) the Certificate Administrator may not be terminated
if, following the Certificate Administrator's failure (which failure is not
directly or indirectly caused by the failure of any other party hereto to
perform its obligations fully within the exact applicable timeframe or otherwise
by such party's negligence, bad faith or willful misconduct) to comply with any
of such obligations under Sections 11.06, 11.07, 11.09, 11.11, 11.12 or 11.13 on
or prior to the dates by which such obligations are to be performed pursuant to,
and as set forth in, such Sections the Certificate Administrator subsequently
complies with such obligations before the Depositor gives written notice to it
that it is terminated in accordance with this Section 11.17 and (d) if the
Certificate Administrator's failure (which failure is not directly or indirectly
caused by the failure of any other party hereto to perform its obligations fully
within the exact applicable timeframe or otherwise by such party's negligence,
bad faith or willful misconduct) to comply does not cause it to fail in its
obligations to timely file the related Form 8-K, Form 10-D or Form 10-K, as the
case may be, by the related deadline for filing such Form 8-K, Form 10-D or Form
10-K, then the Depositor shall cease to have the right to terminate the
Certificate Administrator under this Section 11.17 on the date on which such
Form 8-K, Form 10-D or Form 10-K is so filed.

            Section 11.18 Certain Matters Relating to the Future Securitization
of the Companion Loan.

            (a) Each of the Trustee, the Certificate Administrator, Master
Servicer No. 1 and Special Servicer No. 1 shall, and Master Servicer No. 1 and
Special Servicer No. 1 shall use reasonable efforts to cause any sub-servicer
appointed with respect to the Companion Loan to, upon request or notice from a
Mortgage Loan Seller, cooperate with the Mortgage Loan Seller selling the
Companion Loan into a securitization that is required to comply with Regulation
AB (a "Regulation AB Companion Loan Securitization") and, to the extent needed
in order to comply with Regulation AB, provide to the Mortgage Loan Seller
information about itself that such Mortgage Loan Seller reasonably requires to
meet the requirements of Items 1117 and 1119 and paragraphs (b), (c)(3), (c)(4)
and (c)(5) of Item 1108 of Regulation AB and shall cooperate with such Mortgage
Loan Seller to provide such other information as may be necessary to comply with
the requirements of Regulation AB. Each of the Trustee, the Certificate
Administrator, Master Servicer No. 1 and Special Servicer No. 1 understands that
such information may be included in the offering material related to a
Regulation AB Companion Loan Securitization and agrees to indemnify and hold the
related depositor and underwriters involved in the offering of the related
Certificates harmless for any costs, liabilities, fees and expenses incurred by
the depositor or such underwriters as a result of any material misstatements or
omissions or alleged material misstatements or omissions in any such offering
material to the extent that such material misstatement or omission was made in
reliance upon any such information provided by the Trustee (where such
information pertains to Wells Fargo Bank, N.A. individually and not to any
specific aspect of the Trustee's duties or obligations under this Agreement),
the Certificate Administrator (where such information pertains to LaSalle Bank
National Association individually and not to any specific aspect of the Paying
Agent's duties or obligations under this Agreement), Master Servicer No. 1
(where such information pertains to KRECM individually and not to any specific
aspect of the Master Servicer No. 1's duties or obligations under this
Agreement) and Special Servicer No. 1 (where such information pertains to LNR
Partners, Inc. individually and not to any specific aspect of the Special
Servicer's duties or obligations under this Agreement), as applicable, to such
depositor, underwriters or Mortgage Loan Seller as required by this clause (a).
Notwithstanding the foregoing, to the extent that the information provided by
the Trustee, the Certificate Administrator, Master Servicer No. 1 or the Special
Servicer, as applicable, for inclusion in the offering materials related to such
Regulation AB Companion Loan Securitization is substantially and materially
similar to the information provided by such party with respect to the offering
materials related to this transaction, subject to any required changes due to
any amendments to Regulation AB or any changes in the interpretation of
Regulation AB, such party shall be deemed to be in compliance with this Section
11.15(a). Any indemnification agreement executed by the Trustee, Certificate
Administrator, Master Servicer No. 1 or Special Servicer No. 1 in connection
with the Regulation AB Companion Loan Securitization shall be substantially
similar to the related indemnification agreement executed in connection with
this Agreement.

            (b) Each of the Trustee, the Certificate Administrator, Master
Servicer No. 1 and Special Servicer No. 1 shall, and Master Servicer No. 1 and
Special Servicer No. 1 shall use reasonable efforts to cause any sub-servicer
appointed with respect to a Companion Loan to, upon request or notice from such
parties (which request or notice may be given once at the closing of such
Regulation AB Companion Loan Securitization instead of each time a filing is
required), cooperate with the trustee, master servicer or special servicer for
any Regulation AB Companion Loan Securitization in preparing each Form 10-D
required to be filed by such Regulation AB Companion Loan Securitization (until
January 30 of the first year in which the trustee for such Regulation AB
Companion Loan Securitization files a Form 15 Suspension Notice with respect to
the related trust) and shall provide to such trustee or master servicer within
the time period set forth in the pooling and servicing agreement (so long as
such time period is no earlier than the time periods set forth herein) for such
Regulation AB Companion Loan Securitization such information relating to a
Serviced A2 Note as may be necessary for the servicer and trustee of the
Regulation AB Companion Loan Securitization to comply with the reporting
requirements of Regulation AB; provided however that any parties to any
Regulation AB Companion Loan Securitization shall consult with the Trustee, the
Certificate Administrator, Master Servicer No. 1 and Special Servicer No. 1 (and
Master Servicer No. 1 shall consult with the Primary Servicer and any
sub-servicer appointed with respect to the Companion Loan), and the Trustee, the
Certificate Administrator, Master Servicer No. 1 and Special Servicer No. 1
shall cooperate with such parties in respect of establishing the time periods
for preparation of the Form 10-D reports in the documentation for such
Regulation AB Companion Loan Securitization. Notwithstanding the foregoing, to
the extent the Trustee, the Certificate Administrator, Master Servicer No. 1, or
Special Servicer No. 1 complies in all material respects with the timing,
reporting and attestation requirements in Article XI of this Agreement with
respect to the comparable timing, reporting and attestation requirements
contemplated in this section 11.15(b) with respect to such Regulation AB
Companion Loan Securitization, such party shall be deemed to be in compliance
with the provisions of this Section 11.15(b).

            (c) Each of the Trustee, the Certificate Administrator, Master
Servicer No. 1 and Special Servicer No. 1 shall, and Master Servicer No. 1 and
Special Servicer No. 1 shall use reasonable efforts to cause any sub-servicer
appointed with respect to a Companion Loan to, upon request from such trustee
(which request or notice may be given once at the closing of such Regulation AB
Companion Loan Securitization instead of each time a filing is required),
provide the trustee under a Regulation AB Companion Loan Securitization (until
January 30 of the first year in which the trustee for such Regulation AB
Companion Loan Securitization files a Form 15 Suspension Notice with respect to
the related trust) information with respect to any event that is required to be
disclosed under Form 8-K with respect to a Companion Loan within two Business
Days after the occurrence of such event of which it has knowledge.
Notwithstanding the foregoing, to the extent the Trustee, the Certificate
Administrator, Master Servicer No. 1, or Special Servicer No. 1 complies in all
material respects with the timing, reporting and attestation requirements in
Article XI of this Agreement with respect to the comparable timing, reporting
and attestation requirements contemplated in this Section 11.18(c) with respect
to such Regulation AB Companion Loan Securitization, such party shall be deemed
to be in compliance with the provisions of this Section 11.18(c).

            (d) On or before March 15 of each year (or March 14 if a leap year)
during which a Regulation AB Companion Loan Securitization is required to file
an annual report on Form 10-K (and not in respect of any year in which such
Regulation AB Companion Loan Securitization is not required to file an annual
report on Form 10-K because a Form 15 Suspension Notice with respect to the
related trust was filed), each of the Trustee, the Certificate Administrator,
Master Servicer No. 1 and Special Servicer No. 1 shall, and Master Servicer No.
1 and Special Servicer No. 1 shall use reasonable efforts to cause any
sub-servicer appointed with respect to a Companion Loan to, upon request from
such trustee (which request or notice may be given once at the closing of such
Regulation AB Companion Loan Securitization instead of each time a filing is
required), provide, with respect to itself, to the trustee under such Regulation
AB Companion Loan Securitization, to the extent required pursuant to Item 1122
of Regulation AB, (i) a report on an assessment of compliance with the servicing
criteria to the extent required pursuant to Item 1122(a) of Regulation AB, (ii)
a registered accounting firm's attestation report on such Person's assessment of
compliance with the applicable servicing criteria to the extent required
pursuant to Item 1122(b) of Regulation AB and (iii) such other information as
may be required pursuant to Item 1122(c) of Regulation AB. Notwithstanding the
foregoing, to the extent the Trustee, the Certificate Administrator, Master
Servicer No. 1, or Special Servicer No. 1 complies in all material respects with
the timing, reporting and attestation requirements in Article XI of this
Agreement with respect to the comparable timing, reporting and attestation
requirements contemplated in this Section 11.18(d) with respect to such
Regulation AB Companion Loan Securitization, such party shall be deemed to be in
compliance with the provisions of this Section 11.18(d).

            (e) On or before March 15 of each year (or March 14 if a leap year)
during which a Regulation AB Companion Loan Securitization is required to file
an annual report on Form 10-K (and not in respect of any year in which such
Regulation AB Companion Loan Securitization is not required to file an annual
report on Form 10-K because a Form 15 Suspension Notice with respect to the
related trust was filed), each of the Trustee, the Certificate Administrator,
Master Servicer No. 1 and Special Servicer No. 1 shall, and Master Servicer No.
1 and Special Servicer No. 1 shall use reasonable efforts to cause any
sub-servicer appointed with respect to a Companion Loan to, to the extent
required pursuant to Item 1123 of Regulation AB, deliver, with respect to
itself, to the trustee, upon request from such trustee (which request or notice
may be given once at the closing of such Regulation AB Companion Loan
Securitization instead of each time a filing is required), under such Regulation
AB Companion Loan Securitization a servicer compliance statement signed by an
authorized officer of such Person that satisfies the requirements of Item 1123
of Regulation AB. Notwithstanding the foregoing, to the extent the Trustee, the
Certificate Administrator, Master Servicer No. 1, or Special Servicer No. 1
complies in all material respects with the timing, reporting and attestation
requirements in Article XI of this Agreement with respect to the comparable
timing, reporting and attestation requirements contemplated in this Section
11.18(e) with respect to such Regulation AB Companion Loan Securitization, such
party shall be deemed to be in compliance with the provisions of this Section
11.18(e).

            (f) Each of the Trustee, the Certificate Administrator, Master
Servicer No. 1 and Special Servicer No. 1, shall use reasonable efforts to cause
a sub-servicer to agree (severally but not jointly) to indemnify (such indemnity
limited to each such parties respective failure described below) and hold the
related Mortgage Loan Seller, depositor, trustee or master servicer under a
Regulation AB Companion Loan Securitization harmless for any costs, liabilities,
fees and expenses incurred by such Mortgage Loan Seller, depositor, trustee or
master servicer as a result of any failure by the Trustee, Certificate
Administrator, Master Servicer No. 1 and Special Servicer No. 1, as applicable,
to comply with the reporting requirements to the extent applicable set forth
under Sections 11.18(b), (c), (d) or (e) above.

            (g) Any subservicing agreement related to a Companion Loan shall
contain a provision requiring the related Sub-Servicer to provide to Master
Servicer No. 1 or Special Servicer No. 1, as applicable, information, reports
and certificates with respect to itself comparable to any information, reports
or certificates required to be provided by Master Servicer No. 1 or Special
Servicer No. 1 pursuant to this Section 11.18, even if such Sub-Servicer is not
otherwise required to provide such information, reports or certificates to any
Person in order to comply with Regulation AB. Such information, reports or
certificates shall be provided to Master Servicer No. 1 or Special Servicer No.
1, as applicable, no later than two Business Days prior to the date on which
Master Servicer No. 1 or Special Servicer No. 1, as applicable, is required to
deliver its comparable information, reports or certificates pursuant to this
Section 11.18.

                            [Signature Page Follows]

<PAGE>

            IN WITNESS WHEREOF, the parties hereto have caused their names to be
signed hereto by their respective officers thereunto duly authorized, in each
case as of the day and year first above written.

                                       CREDIT SUISSE FIRST BOSTON MORTGAGE
                                          SECURITIES CORP.,
                                          Depositor

                                       By:____________________________________
                                            Name:
                                            Title:

                                       KEYCORP REAL ESTATE CAPITAL
                                          MARKETS, INC.
                                          Master Servicer No. 1

                                       By:____________________________________
                                            Name:
                                            Title:

                                       NCB, FSB
                                          Master Servicer No. 2

                                       By:____________________________________
                                            Name:
                                            Title:

                                       LNR PARTNERS, INC.
                                          Special Servicer No. 1

                                       By:____________________________________
                                            Name:
                                            Title:

                                       NATIONAL CONSUMER COOPERATIVE BANK
                                          Special Servicer No. 2

                                       By:____________________________________
                                            Name:
                                            Title:

                                       LASALLE BANK NATIONAL ASSOCIATION
                                          Certificate Administrator

                                       By:____________________________________
                                            Name:
                                            Title:

                                       WELLS FARGO BANK, N.A.
                                          Trustee

                                       By:____________________________________
                                            Name:
                                            Title:

<PAGE>

STATE OF NEW YORK       )
                        )  ss.:
COUNTY OF NEW YORK      )

            On the _____ day of September 2006, before me, a notary public in
and for said State, personally appeared ______________________________________,
known to me to be a __________________________ of Credit Suisse First Boston
Mortgage Securities Corp., one of the entities that executed the within
instrument, and also known to me to be the person who executed it on behalf of
such entity, and acknowledged to me that such entity executed the within
instrument.

            IN WITNESS WHEREOF, I have hereunto set my hand and affixed my
official seal the day and year in this certificate first above written.

                                            ____________________________________
                                                       Notary Public

                  [SEAL]

My commission expires:

___________________________________

<PAGE>

STATE OF                )
                        )  ss.:
COUNTY OF               )

            On the _____ day of September 2006, before me, a notary public in
and for said State, personally appeared _________________________________, known
to me to be a _________________________ of [_____], one of the entities that
executed the within instrument, and also known to me to be the person who
executed it on behalf of said entity, and acknowledged to me that such entity
executed the within instrument.

            IN WITNESS WHEREOF, I have hereunto set my hand and affixed my
official seal the day and year in this certificate first above written.

                                            ____________________________________
                                                       Notary Public

                  [SEAL]

My commission expires:

___________________________________

<PAGE>

STATE OF                )
                        )  ss.:
COUNTY OF               )

            On the _____ day of September 2006, before me, a notary public in
and for said State, personally appeared _________________________________, known
to me to be a _________________________ of NCB, FSB, one of the entities that
executed the within instrument, and also known to me to be the person who
executed it on behalf of said entity, and acknowledged to me that such entity
executed the within instrument.

            IN WITNESS WHEREOF, I have hereunto set my hand and affixed my
official seal the day and year in this certificate first above written.

                                            ____________________________________
                                                       Notary Public

                  [SEAL]

My commission expires:

___________________________________

<PAGE>

STATE OF                )
                        )  ss.:
COUNTY OF               )

            On the _____ day of September 2006, before me, a notary public in
and for said State, personally appeared _________________________________, known
to me to be a _________________________ of KeyCorp Real Estate Capital Markets,
Inc., one of the entities that executed the within instrument, and also known to
me to be the person who executed it on behalf of said entity, and acknowledged
to me that such entity executed the within instrument.

            IN WITNESS WHEREOF, I have hereunto set my hand and affixed my
official seal the day and year in this certificate first above written.

                                            ____________________________________
                                                       Notary Public

                  [SEAL]

My commission expires:

___________________________________

<PAGE>

STATE OF                )
                        )  ss.:
COUNTY OF               )

            On the _____ day of September 2006, before me, a notary public in
and for said State, personally appeared _________________________________, known
to me to be a _________________________ of LaSalle Bank National Association,
one of the entities that executed the within instrument, and also known to me to
be the person who executed it on behalf of said entity, and acknowledged to me
that such entity executed the within instrument.

            IN WITNESS WHEREOF, I have hereunto set my hand and affixed my
official seal the day and year in this certificate first above written.

                                            ____________________________________
                                                       Notary Public

                  [SEAL]

My commission expires:

___________________________________

<PAGE>

STATE OF                )
                        )  ss.:
COUNTY OF               )

            On the _____ day of September 2006, before me, a notary public in
and for said State, personally appeared _________________________________, known
to me to be a _________________________ of National Consumer Cooperative Bank,
one of the entities that executed the within instrument, and also known to me to
be the person who executed it on behalf of said entity, and acknowledged to me
that such entity executed the within instrument.

            IN WITNESS WHEREOF, I have hereunto set my hand and affixed my
official seal the day and year in this certificate first above written.

                                            ____________________________________
                                                       Notary Public

                  [SEAL]

My commission expires:

___________________________________

<PAGE>

STATE OF                )
                        )  ss.:
COUNTY OF               )

            On the _____ day of September 2006, before me, a notary public in
and for said State, personally appeared _________________________________, known
to me to be a _________________________ of Wells Fargo Bank, N.A., one of the
entities that executed the within instrument, and also known to me to be the
person who executed it on behalf of said entity, and acknowledged to me that
such entity executed the within instrument.

            IN WITNESS WHEREOF, I have hereunto set my hand and affixed my
official seal the day and year in this certificate first above written.

                                            ____________________________________
                                                       Notary Public

                  [SEAL]

My commission expires:

___________________________________

<PAGE>

                                   EXHIBIT A-1

    FORM OF CLASS A-1, CLASS A-2, CLASS A-AB, CLASS A-3, CLASS A-1-A, CLASS
                         A-M AND CLASS A-J CERTIFICATES

            CLASS [A-1], [A-2], [A-AB], [A-3], [A-1-A], [A-M], [A-J]
                  COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATE,
                                 SERIES 2006-C4

This is one of a series of commercial mortgage pass-through certificates
(collectively, the "Certificates"), issued in multiple classes (each, a
"Class"), which series of Certificates evidences the entire beneficial ownership
interest in a trust fund (the "Trust Fund") consisting primarily of a pool of
multifamily and commercial mortgage loans (the "Mortgage Loans"), such pool
being formed and sold by

              CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.

Pass-Through Rate: [____% per        Class Principal Balance of the
annum] [LIBOR +[__]%] [Variable]     Class [A-1], [A-2], [A-AB], [A-3],
                                     [A-1-A], [A-M], [A-J] Certificates as of
                                     the Closing Date:
                                     $[__________________]

Closing Date: September 28, 2006     Initial Certificate Principal
First Distribution Date:             Balance of this Certificate as of
[October],  2006                     the Closing Date:
                                     $[__________________]

Master Servicers:                    Aggregate Stated Principal Balance
KeyCorp Real Estate Capital          of the Mortgage Loans as of the
Markets, Inc.                        Closing Date ("Initial Pool
NCB, FSB                             Balance"): $4,273,091,953

Special Servicers:
LNR Partners, Inc.
National Consumer Cooperative Bank

                                     Trustee:
                                     Wells Fargo Bank, N.A.

                                     Certificate Administrator:
                                     LaSalle Bank National Association

Certificate No. [A-1], [A-2],        CUSIP No.: [_____________]
[A-AB], [A-3],                       ISIN No.: [_____________]
[A-1-A], [A-M], [A-J] -___

<PAGE>

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE CERTIFICATE
REGISTRAR OR ANY AGENT THEREOF FOR REGISTRATION OF TRANSFER, EXCHANGE, OR
PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR
IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND
ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR
VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED
OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

NO TRANSFER OF THIS CERTIFICATE OR ANY INTEREST HEREIN MAY BE MADE TO (A) ANY
RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT THAT IS SUBJECT TO
THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA"), OR
SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE "CODE"), OR
ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A MATERIAL EXTENT, SIMILAR TO THE
FOREGOING PROVISIONS OF ERISA OR THE CODE, OR (B) ANY PERSON WHO IS DIRECTLY OR
INDIRECTLY PURCHASING THIS CERTIFICATE OR SUCH INTEREST HEREIN ON BEHALF OF, AS
NAMED FIDUCIARY OF, AS TRUSTEE OF, OR WITH ASSETS OF ANY SUCH RETIREMENT PLAN OR
OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT, EXCEPT IN ACCORDANCE WITH THE
PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING AGREEMENT REFERRED TO
HEREIN.

THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP., WELLS FARGO BANK,
N.A., LASALLE BANK NATIONAL ASSOCIATION, LNR PARTNERS, INC., KEYCORP
REAL ESTATE CAPITAL MARKETS, INC., NCB, FSB,  NATIONAL CONSUMER
COOPERATIVE BANK, OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS
CERTIFICATE NOR ANY OF THE UNDERLYING MORTGAGE LOANS IS GUARANTEED BY
ANY AGENCY OR INSTRUMENTALITY OF THE UNITED STATES OR ANY OTHER PERSON.

SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A "REGULAR
INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT" (A "REMIC") AS THOSE
TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE CODE.

[FOR CLASS A-M AND CLASS A-J CERTIFICATES: THIS CERTIFICATE IS
SUBORDINATE TO ONE OR MORE CLASSES OF CERTIFICATES OF THE SAME SERIES
AS AND TO THE EXTENT DESCRIBED IN THE POOLING AND SERVICING AGREEMENT
REFERRED TO HEREIN.]

THE OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
LESS THAN THE AMOUNT SHOWN ABOVE.

            This certifies that CEDE & CO. is the registered owner of the
Percentage Interest evidenced by this Certificate (obtained by dividing the
principal amount of this Certificate (its "Certificate Principal Balance") as of
the Closing Date by the aggregate principal amount of all the Class [A-1],
[A-2], [A-AB], [A-3], [A-1-A], [A-M], [A-J] Certificates (their "Class Principal
Balance") as of the Closing Date) in that certain beneficial ownership interest
in the Trust Fund evidenced by all the Class [A-1], [A-2], [A-AB], [A-3],
[A-1-A], [A-M], [A-J] Certificates. The Trust Fund was created and the
Certificates were issued pursuant to a Pooling and Servicing Agreement, dated as
of September 1, 2006 (the "Agreement"), among Credit Suisse First Boston
Mortgage Securities Corp., as depositor (the "Depositor", which term includes
any successor entity under the Agreement), Keycorp Real Estate Capital Markets,
Inc., as master servicer (in such capacity, the "Master Servicer No. 1", which
term includes any successor entity under the Agreement), NCB, FSB, as master
servicer (in such capacity, the "Master Servicer No. 2", which term includes any
successor entity under the Agreement, and collectively with the Master Servicer
No. 1, the "Master Servicers"), LNR Partners, Inc., as special servicer (in such
capacity, the "Special Servicer No. 1", which term includes any successor entity
under the Agreement), National Consumer Cooperative Bank as special servicer (in
such capacity, the "Special Servicer No. 2", which term includes any successor
entity under the Agreement, and collectively with Special Servicer No. 1 the
"Special Servicers"), Wells Fargo Bank, N.A., as trustee (the "Trustee", which
term includes any successor entity under the Agreement) and LaSalle Bank
National Association (the "Certificate Administrator", which term includes any
successor entity under the Agreement), a summary of certain of the pertinent
provisions of which is set forth hereafter. To the extent not defined herein,
capitalized terms used herein have the respective meanings assigned thereto in
the Agreement. This Certificate is issued under and is subject to the terms,
provisions and conditions of the Agreement, to which Agreement the Holder of
this Certificate by virtue of its acceptance hereof assents and by which such
Holder is bound.

            Pursuant to the terms of the Agreement, beginning on the First
Distribution Date specified above, distributions will be made on that date (the
"Distribution Date") each month that is the fourth Business Day following the
Determination Date in such month, to the Person in whose name this Certificate
is registered at the close of business on the last Business Day of the month
immediately preceding the month of such distribution (the "Record Date"), in an
amount equal to the product of the Percentage Interest evidenced by this
Certificate and the amount required to be distributed to all the Holders of the
Class [A-1], [A-2], [A-AB], [A-3], [A-1-A], [A-M], [A-J] Certificates on the
applicable Distribution Date pursuant to the Agreement. All distributions made
under the Agreement on this Certificate will be made by the Certificate
Administrator by wire transfer of immediately available funds to the account of
the Person entitled thereto at a bank or other entity having appropriate
facilities therefor, if such Certificateholder shall have provided the
Certificate Administrator with wiring instructions no later than the related
Record Date (which wiring instructions may be in the form of a standing order
applicable to all subsequent distributions), or otherwise by check mailed to the
address of such Certificateholder as it appears in the Certificate Register.
Notwithstanding the foregoing, the final distribution on this Certificate
(determined without regard to any possible future reimbursement of any portion
of a Realized Loss in respect of this Certificate) will be made in like manner,
but only upon presentation and surrender of this Certificate at the offices of
the Certificate Registrar or such other location specified in the notice to the
Holder hereof of such final distribution.

            The Certificates are limited in right of distribution to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Distribution Account, the Collection Account
and, if established, the REO Account or any Mortgage Loan Combination Custodial
Account may be made from time to time for purposes other than, and, in certain
cases, prior to, distributions to Certificateholders, such purposes including
the reimbursement of advances made, or certain expenses incurred, with respect
to the Mortgage Loans and the payment of interest on such advances and expenses.

            Any distribution to the Holder of this Certificate in reduction of
the Certificate Principal Balance hereof is binding on such Holder and all
future Holders of this Certificate and any Certificate issued upon the transfer
hereof or in exchange herefor or in lieu hereof whether or not notation of such
distribution is made upon this Certificate.

            This Certificate is issuable in fully registered form only without
coupons. As provided in the Agreement and subject to certain limitations therein
set forth, this Certificate is exchangeable for new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest, as requested by the Holder surrendering the same.

            No transfer of this Certificate or any interest herein shall be made
(A) to any retirement plan or other employee benefit plan or arrangement,
including individual retirement accounts and annuities, Keogh plans and
collective investment funds and separate accounts in which such plans, accounts
or arrangements are invested, including insurance company general accounts, that
is subject to ERISA or Section 4975 of the Code (each, a "Plan"), or (B) to any
Person who is directly or indirectly purchasing this Certificate or any interest
herein on behalf of, as named fiduciary of, as trustee of, or with assets of a
Plan, if the purchase and holding of this Certificate or such interest herein by
the prospective Transferee would result in a violation of Section 406 or 407 of
ERISA or Section 4975 of the Code or would result in the imposition of an excise
tax under Section 4975 of the Code (or, in the case of a governmental plan,
would result in a violation of any federal, state or local law materially
similar to Section 406 or 407 of ERISA or Section 4975 of the Code (a "Similar
Law"). Except in limited circumstances, the Certificate Registrar shall refuse
to register the transfer of this Certificate (and, if applicable, any
Certificate Owner shall refuse to transfer an interest in this Certificate),
unless it has received from the prospective Transferee either (i) a
certification to the effect that such prospective Transferee is not a Plan and
is not directly or indirectly purchasing this Certificate on behalf of, as named
fiduciary of, as trustee of, or with assets of a Plan or a governmental plan
subject to Similar Law; or (ii) a certification to the effect that the purchase
and holding of this Certificate by such prospective Transferee is exempt from
the prohibited transaction provisions of Sections 406 and 407 of ERISA and
Section 4975 of the Code by reason of Sections I and III of Prohibited
Transaction Class Exemption 95-60; or (iii) if this Certificate is rated
investment grade by at least one of the Rating Agencies and is being acquired
by, on behalf of or with assets of a Plan in reliance upon Prohibited
Transaction Exemption 89-90, a certification to the effect that such Plan (X) is
an accredited investor as defined in Rule 501(a)(1) of Regulation D of the
Securities Act, (Y) is not sponsored (within the meaning of Section 3(16)(B) of
ERISA) by the Trustee, the Certificate Administrator, any Exemption-Favored
Party, the Depositor, any Mortgage Loan Seller, any Master Servicer, either
Special Servicer, any Primary Servicer, any Sub-Servicer or any Borrower with
respect to Mortgage Loans constituting more than 5% of the aggregate unamortized
principal of all the Mortgage Loans determined as of the Closing Date, or by an
Affiliate of any such Person, and (Z) agrees that it will obtain from each of
its Transferees a written representation that such Transferee, if a Plan,
satisfies the requirements of the immediately preceding clauses (iii)(X) and
(iii)(Y), together with a written agreement that such Transferee will obtain
from each of its Transferees that are Plans a similar written representation
regarding satisfaction of the requirements of the immediately preceding clauses
(iii)(X) and (iii)(Y); or (iv) in the case of a governmental plan subject to
Similar Law, a certification that the purchase and holding of such Certificate
by the governmental plan would not result in a violation of, or imposition of
tax under, such Similar Law; or (v) a certification of facts and an Opinion of
Counsel which otherwise establish to the reasonable satisfaction of the
Certificate Administrator, (or, if applicable, the Certificate Owner effecting
the transfer) that such transfer will not result in a violation of Section 406
or 407 of ERISA or Section 4975 of the Code or result in the imposition of an
excise tax under Section 4975 of the Code (or, in the case of a governmental
plan, would not result in a violation of applicable Similar Law).

            As provided in the Agreement and subject to certain limitations
therein set forth, the transfer of this Certificate is registrable in the
Certificate Register upon surrender of this Certificate for registration of
transfer at the offices of the Certificate Registrar, duly endorsed by, or
accompanied by a written instrument of transfer in the form satisfactory to the
Certificate Registrar duly executed by, the Holder hereof or his attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

            No service charge will be imposed for any registration of transfer
or exchange of this Certificate, but the Certificate Registrar may require
payment of a sum sufficient to cover any tax or other governmental charge that
may be imposed in connection with any transfer or exchange of this Certificate.

            Notwithstanding the foregoing, for so long as this Certificate is
registered in the name of Cede & Co. or in such other name as is requested by an
authorized representative of DTC, transfers of interests in this Certificate
shall be made through the book-entry facilities of DTC, and accordingly, this
Certificate shall constitute a Book-Entry Certificate.

            The Depositor, the Master Servicers, the Special Servicers, the
Trustee, the Certificate Administrator, the Certificate Registrar and any agent
of the Depositor, the Master Servicers, the Special Servicers, the Trustee, the
Certificate Administrator or the Certificate Registrar may treat the Person in
whose name this Certificate is registered as the owner hereof for all purposes,
and none of the Depositor, the Master Servicers, the Special Servicers, the
Trustee, the Certificate Administrator, the Certificate Registrar or any such
agent shall be affected by notice to the contrary.

            Subject to certain terms and conditions set forth in the Agreement,
the Trust Fund and the obligations created by the Agreement shall terminate upon
distribution (or provision for distribution) to the Certificateholders of all
amounts held by or on behalf of the Certificate Administrator and required to be
distributed to them pursuant to the Agreement following the earlier of (i) the
final payment or other liquidation (or any advance with respect thereto) of the
last Mortgage Loan or REO Property remaining in the Trust Fund, (ii) the
purchase by the Master Servicers, the Special Servicers, or any single
Controlling Class Certificateholder or group of Controlling Class
Certificateholders with a majority interest in the Controlling Class, at a price
determined as provided in the Agreement, of all the Mortgage Loans and each REO
Property remaining in the Trust Fund. The Agreement permits, but does not
require, the Master Servicers, the Special Servicers, or any single Controlling
Class Certificateholder or group of Controlling Class Certificateholders with a
majority interest in the Controlling Class to purchase from the Trust Fund all
the Mortgage Loans and each REO Property remaining therein. The exercise of such
right may effect early retirement of the Certificates; however, such right to
purchase is subject to the aggregate Stated Principal Balance of the Mortgage
Pool at the time of purchase being less than 1.0% of the Initial Pool Balance.

            The Agreement permits, with certain exceptions therein provided, the
amendment thereof and the modification of the rights and obligations of the
Depositor, the Master Servicers, the Special Servicers, the Certificate
Administrator and the Trustee and the rights of the Certificateholders under the
Agreement at any time by the Depositor, the Master Servicers, the Special
Servicers, the Certificate Administrator and the Trustee with the consent of the
Holders of Certificates entitled to not less than 51% of the Voting Rights
allocated to all of the Classes materially affected by the amendment (subject to
certain third-party beneficiary consent rights). Any such consent by the Holder
of this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, including any amendment
necessary to maintain the status of the 828-850 Madison Avenue Loan REMIC, the
Lower-Tier REMIC or the Upper -Tier REMIC as a REMIC, without the consent of the
Holders of any of the Certificates.

            Unless the certificate of authentication hereon has been executed by
the Certificate Registrar, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

            The registered Holder hereof, by its acceptance hereof, agrees that
it will look solely to the Trust Fund (to the extent of its rights therein) for
distributions hereunder.

            This Certificate shall be construed in accordance with the laws of
the State of New York applicable to agreements negotiated, made and to be
performed entirely in said State, and the obligations, rights and remedies of
the Holder hereof shall be determined in accordance with such laws.

<PAGE>

           IN WITNESS WHEREOF, the Certificate Administrator has caused this
Certificate to be duly executed.

                               LASALLE BANK NATIONAL ASSOCIATION
                               as Certificate Administrator

                               By:
                                  -----------------------------------------
                                  Authorized Representative

                     CERTIFICATE OF AUTHENTICATION

            This is one of the Class [A-1], [A-2], [A-AB], [A-3], [A-1-A],
[A-M], [A-J] Certificates referred to in the within-mentioned Agreement.

Dated: September 28, 2006

                               LASALLE BANK NATIONAL ASSOCIATION
                               as Certificate Registrar

                               By:
                                  -----------------------------------------
                                  Authorized Representative

<PAGE>

                                   ASSIGNMENT

            FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and
transfer(s) unto
________________________________________________________________________________
________________________________________________________________________________
          (please print or typewrite name and address including postal
                              zip code of assignee)

the beneficial ownership interest in the Trust Fund evidenced by the within
Mortgage Pass-Through Certificate and hereby authorize(s) the registration of
transfer of such interest to assignee on the Certificate Register of the Trust
Fund.

           I (we) further direct the Certificate Registrar to issue a new
Mortgage Pass-Through Certificate of a like Percentage Interest and Class to the
above named assignee and deliver such Mortgage Pass-Through Certificate to the
following address: _____________________________________________________________
________________________________________________________________________________

Dated:

                               _________________________________________________
                               Signature by or on behalf of Assignor

                               _________________________________________________
                               Signature Guaranteed

                       DISTRIBUTION INSTRUCTIONS

           The Assignee should include the following for purposes of
distribution:

           Distributions shall, if permitted, be made by wire transfer or
otherwise, in immediately available funds, to __________________________________
________________________for the account of _____________________________________
________________________.

           Distributions made by check (such check to be made payable to
___________________________) and all applicable statements and notices should be
mailed to ______________________________________________________________________
______________________.

            This information is provided by __________________________________,
the Assignee named above, or __________________________________________________,
as its agent.

<PAGE>
                             EXHIBIT A-1-A

                    FORM OF CLASS A-4FL CERTIFICATES

                              CLASS A-4FL
             COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATE,
                             SERIES 2006-C4

This is one of a series of commercial mortgage pass-through certificates
(collectively, the "Certificates"), issued in multiple classes (each, a
"Class"), which series of Certificates evidences the entire beneficial ownership
interest in a trust fund (the "Trust Fund") consisting primarily of a pool of
multifamily and commercial mortgage loans (the "Mortgage Loans"), such pool
being formed and sold by

              CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.

Pass-Through Rate: [____% per        Class Principal Balance of the
annum] [Variable]                    Class A-4FL Certificates as of the
                                     Closing Date:
                                     $__________________

Closing Date: September 28, 2005     Initial Certificate Principal
First Distribution Date: [October],  Balance of this Certificate as of
2006                                 the Closing Date:
                                     $__________________

Master Servicers:                    Aggregate Stated Principal Balance
KeyCorp Real Estate Capital          of the Mortgage Loans as of the
Markets, Inc. NCB, FSB               Closing Date ("Initial Pool
..                                    Balance"): $4,273,091,953

Special Servicers:                   Trustee:
LNR Partners, Inc.                   Wells Fargo Bank, N.A.
National Consumer Cooperative Bank
                                     Certificate Administrator:
                                     LaSalle Bank National Association

Certificate No. A-4FL-___            CUSIP No.: _____________
                                     ISIN No.: _____________

<PAGE>

[UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE TRUSTEE OR ANY
AGENT THEREOF FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY
CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME
AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE
TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.]

NO TRANSFER OF THIS CERTIFICATE OR ANY INTEREST HEREIN MAY BE MADE TO (A) ANY
RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT THAT IS SUBJECT TO
THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA"), OR
SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE "CODE"), OR
(B) ANY PERSON WHO IS DIRECTLY OR INDIRECTLY PURCHASING THIS CERTIFICATE OR SUCH
INTEREST HEREIN ON BEHALF OF, AS NAMED FIDUCIARY OF, AS TRUSTEE OF, OR WITH
ASSETS OF ANY SUCH RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR
ARRANGEMENT, EXCEPT IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF THE
POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN CREDIT
SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP., WELLS FARGO BANK, N.A., KEYCORP
REAL ESTATE CAPITAL MARKETS, INC., ING CLARION PARTNERS, LLC, CREDIT SUISSE
FIRST BOSTON INTERNATIONAL OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS
CERTIFICATE NOR ANY OF THE UNDERLYING MORTGAGE LOANS IS GUARANTEED BY ANY AGENCY
OR INSTRUMENTALITY OF THE UNITED STATES OR ANY OTHER PERSON.

SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE REPRESENTS A
"REGULAR INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT" (A "REMIC") AS
THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE CODE AND
A SWAP CONTRACT, AND CONSTITUTES AN INTEREST IN A GRANTOR TRUST.

THE OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
LESS THAN THE AMOUNT SHOWN ABOVE.

           This certifies that [CEDE & CO.] is the registered owner of the
Percentage Interest evidenced by this Certificate (obtained by dividing the
principal amount of this Certificate (its "Certificate Principal Balance") as of
the Closing Date by the aggregate principal amount of all the Class A-4FL
Certificates (their "Class Principal Balance") as of the Closing Date) in that
certain beneficial ownership interest in the Trust Fund evidenced by all the
Class A-4FL Certificates. The Trust Fund was created and the Certificates were
issued pursuant to a Pooling and Servicing Agreement, dated as of September 1,
2006 (the "Agreement"), among Credit Suisse First Boston Mortgage Securities
Corp., as depositor (the "Depositor", which term includes any successor entity
under the Agreement), KeyCorp Real Estate Capital Markets, Inc., as master
servicer (in such capacity, the "Master Servicer No.1", which term includes any
successor entity or entities under the Agreement), NCB, FSB, as master servicer
(in such capacity, the "Master Servicer No.2", which term includes any successor
entity or entities under the Agreement), LNR Partners, Inc., as special servicer
(in such capacity, the "Special Servicer No.1", which term includes any
successor entity or entities under the Agreement), National Consumer Cooperative
Bank, as special servicer (in such capacity, the "Special Servicer No.2", which
term includes any successor entity or entities under the Agreement), Wells Fargo
Bank, N.A., as trustee (the "Trustee", which term includes any successor entity
under the Agreement) and LaSalle Bank National Association as Certificate
Administrator (in such capacity, the "Certificate Administrator", which term
includes any successor entity or entities under the Agreement) a summary of
certain of the pertinent provisions of which is set forth hereafter. To the
extent not defined herein, capitalized terms used herein have the respective
meanings assigned thereto in the Agreement. This Certificate is issued under and
is subject to the terms, provisions and conditions of the Agreement, to which
Agreement the Holder of this Certificate by virtue of its acceptance hereof
assents and by which such Holder is bound.

           Pursuant to the terms of the Agreement, beginning on the First
Distribution Date specified above, distributions will be made on that date (the
"Distribution Date") each month that is the fourth Business Day following the
Determination Date in such month, to the Person in whose name this Certificate
is registered at the close of business on the last Business Day of the month
immediately preceding the month of such distribution (the "Record Date"), in an
amount equal to the product of the Percentage Interest evidenced by this
Certificate and the amount required to be distributed to all the Holders of the
Class A-4FL Certificates on the applicable Distribution Date pursuant to the
Agreement. All distributions made under the Agreement on this Certificate will
be made by the Certificate Administrator by wire transfer of immediately
available funds to the account of the Person entitled thereto at a bank or other
entity having appropriate facilities therefor, if such Certificateholder shall
have provided the Certificate Administrator with wiring instructions no later
than the related Record Date (which wiring instructions may be in the form of a
standing order applicable to all subsequent distributions), or otherwise by
check mailed to the address of such Certificateholder as it appears in the
Certificate Register. Notwithstanding the foregoing, the final distribution on
this Certificate (determined without regard to any possible future reimbursement
of any Collateral Support Deficit previously allocated to this Certificate) will
be made in like manner, but only upon presentation and surrender of this
Certificate at the offices of the Certificate Registrar or such other location
specified in the notice to the Holder hereof of such final distribution.

           The Certificates are limited in right of distribution to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Distribution Account, the Collection Account
and, if established, the REO Account (or from any other account established
under the Agreement) may be made from time to time for purposes other than, and,
in certain cases, prior to, distributions to Certificateholders, such purposes
including the reimbursement of advances made, or certain expenses incurred, with
respect to the Mortgage Loans and the payment of interest on such advances and
expenses.

           Any distribution to the Holder of this Certificate in reduction of
the Certificate Principal Balance hereof is binding on such Holder and all
future Holders of this Certificate and any Certificate issued upon the transfer
hereof or in exchange herefor or in lieu hereof whether or not notation of such
distribution is made upon this Certificate.

           This Certificate is issuable in fully registered form only without
coupons. As provided in the Agreement and subject to certain limitations therein
set forth, this Certificate is exchangeable for new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest, as requested by the Holder surrendering the same.

           No transfer of this Certificate or any interest herein shall be made
(A) to any retirement plan or other employee benefit plan or arrangement,
including individual retirement accounts and annuities, Keogh plans and
collective investment funds and separate accounts in which such plans, accounts
or arrangements are invested, including insurance company general accounts, that
is subject to ERISA or Section 4975 of the Code (each, a "Plan"), or (B) to any
Person who is directly or indirectly purchasing this Certificate or any interest
herein on behalf of, as named fiduciary of, as trustee of, or with assets of a
Plan, if the purchase and holding of this Certificate or such interest herein by
the prospective Transferee would result in a violation of Section 406 or 407 of
ERISA or Section 4975 of the Code or would result in the imposition of an excise
tax under Section 4975 of the Code.

           As provided in the Agreement and subject to certain limitations
therein set forth, the transfer of this Certificate is registrable in the
Certificate Register upon surrender of this Certificate for registration of
transfer at the offices of the Certificate Registrar, duly endorsed by, or
accompanied by a written instrument of transfer in the form satisfactory to the
Certificate Registrar duly executed by, the Holder hereof or his attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

           No service charge will be imposed for any registration of transfer or
exchange of this Certificate, but the Trustee, the Certificate Administrator or
the Certificate Registrar may require payment of a sum sufficient to cover any
tax or other governmental charge that may be imposed in connection with any
transfer or exchange of this Certificate.

           Notwithstanding the foregoing, for so long as this Certificate is
registered in the name of Cede & Co. or in such other name as is requested by an
authorized representative of DTC, transfers of interests in this Certificate
shall be made through the book-entry facilities of DTC, and accordingly, this
Certificate shall constitute a Book-Entry Certificate.

           The Depositor, the Master Servicer, the Special Servicer, the
Trustee, the Certificate Administrator, the Certificate Registrar and any agent
of any of them may treat the Person in whose name this Certificate is registered
as the owner hereof for all purposes, and none of the Depositor, the Master
Servicer, the Special Servicer, the Trustee, the Certificate Administrator, the
Certificate Registrar or any such agent shall be affected by notice to the
contrary.

           Subject to certain terms and conditions set forth in the Agreement,
the Trust Fund and the obligations created by the Agreement shall terminate upon
distribution (or provision for distribution) to the Certificateholders of all
amounts held by or on behalf of the Certificate Administrator and required to be
distributed to them pursuant to the Agreement following the earliest to occur of
(i) the final payment or other liquidation (or any advance with respect thereto)
of the last Mortgage Loan or REO Property remaining in the Trust Fund, (ii) the
purchase by one or more of the Persons identified in Section 9.01 of the
Agreement at a price determined as provided in Section 9.01 of the Agreement, of
all the Mortgage Loans and each REO Property remaining in the Trust Fund, (iii)
the exchange by the Sole Certificateholder of its Certificates for all the
Mortgage Loans and each REO Property remaining in the Trust Fund and (iv) the
Distribution Date in December 2040. Section 9.01 of the Agreement permits, but
does not require, certain specified Persons to purchase from the Trust Fund all
the Mortgage Loans and each REO Property remaining therein. The exercise of such
right to purchase may effect early retirement of the Certificates; however, such
right to purchase is subject to the aggregate Stated Principal Balance of the
Mortgage Pool at the time of purchase being less than 1.0% of the Initial Pool
Balance.

           The Agreement permits, with certain exceptions therein provided, the
amendment thereof and the modification of the rights and obligations of the
Depositor, the Master Servicer, the Special Servicer, the Certificate
Administrator and the Trustee and the rights of the Certificateholders under the
Agreement at any time by the Depositor, the Master Servicer, the Special
Servicer, the Certificate Administrator and the Trustee with the consent of the
Holders of Certificates entitled to not less than 51% of the Voting Rights
allocated to all of the Classes materially affected by the amendment (subject to
certain third-party beneficiary consent rights). Any such consent by the Holder
of this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, including any amendment
necessary to maintain the status of any Trust REMIC as a REMIC, without the
consent of the Holders of any of the Certificates.

           Unless the certificate of authentication hereon has been executed by
the Certificate Registrar, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

           The registered Holder hereof, by its acceptance hereof, agrees that
it will look solely to the Trust Fund (to the extent of its rights therein) for
distributions hereunder.

           This Certificate shall be construed in accordance with the laws of
the State of New York applicable to agreements negotiated, made and to be
performed entirely in said State, and the obligations, rights and remedies of
the Holder hereof shall be determined in accordance with such laws.

<PAGE>

           IN WITNESS WHEREOF, the Certificate Administrator has caused this
Certificate to be duly executed.

                                  LASALLE BANK NATIONAL ASSOCIATION
                                    as Certificate Administrator

                                  By:
                                       -----------------------------------
                                       Authorized Representative

                          CERTIFICATE OF AUTHENTICATION

           This is one of the Class A-4FL Certificates referred to in the
within-mentioned Agreement.

Dated:

                                    LASALLE BANK NATIONAL ASSOCIATION
                                    as Certificate Administrator

                                    By:
                                       ------------------------------------
                                       Authorized Representative

<PAGE>

                                   ASSIGNMENT

            FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and
transfer(s) unto
________________________________________________________________________________
________________________________________________________________________________
          (please print or typewrite name and address including postal
                              zip code of assignee)

the beneficial ownership interest in the Trust Fund evidenced by the within
Mortgage Pass-Through Certificate and hereby authorize(s) the registration of
transfer of such interest to assignee on the Certificate Register of the Trust
Fund.

           I (we) further direct the Certificate Registrar to issue a new
Mortgage Pass-Through Certificate of a like Percentage Interest and Class to the
above named assignee and deliver such Mortgage Pass-Through Certificate to the
following address: _____________________________________________________________
________________________________________________________________________________

Dated:

                               _________________________________________________
                               Signature by or on behalf of Assignor

                               _________________________________________________
                               Signature Guaranteed

                       DISTRIBUTION INSTRUCTIONS

           The Assignee should include the following for purposes of
distribution:

           Distributions shall, if permitted, be made by wire transfer or
otherwise, in immediately available funds, to __________________________________
________________________for the account of _____________________________________
________________________.

           Distributions made by check (such check to be made payable to
___________________________) and all applicable statements and notices should be
mailed to ______________________________________________________________________
______________________.

            This information is provided by __________________________________,
the Assignee named above, or __________________________________________________,
as its agent.

<PAGE>

                                   EXHIBIT A-2

            FORM OF CLASS A-X, CLASS A-SP AND CLASS A-Y CERTIFICATES

                            CLASS [A-X] [A-SP] [A-Y]
                  COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATE,
                                 SERIES 2006-C4

This is one of a series of commercial mortgage pass-through certificates
(collectively, the "Certificates"), issued in multiple classes (each, a
"Class"), which series of Certificates evidences the entire beneficial ownership
interest in a trust fund (the "Trust Fund") consisting primarily of a pool of
multifamily and commercial mortgage loans (the "Mortgage Loans"), such pool
being formed and sold by:

          CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.

Pass-Through Rate: Variable          Class Notional Amount of the
                                     Class [A-X] [A-SP] [A-Y] Certificates as of
                                     the Closing Date:
                                     $________________

Closing Date: September 28, 2006     Initial Certificate Notional
                                     Amount of this Certificate as of
First Distribution Date: [October],  the Closing Date:
2006                                 $________________

Master Servicers:                    Aggregate Stated Principal Balance
KeyCorp Real Estate Capital          of the Mortgage Loans as of the
Markets, Inc. NCB, FSB               Closing Date ("Initial Pool

Special Servicers:                   Balance"): $4,273,091,953
LNR Partners, Inc.
National Consumer Cooperative Bank
                                     Trustee:
                                     Wells Fargo Bank, N.A.

                                     Certificate Administrator:
                                     LaSalle Bank National Association

Certificate No. [A-X] [A-SP] [A-Y]   CUSIP No.: _____________
-__                                  ISIN No.: _____________

<PAGE>

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE CERTIFICATE
REGISTRAR OR ANY AGENT THEREOF FOR REGISTRATION OF TRANSFER, EXCHANGE, OR
PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR
IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND
ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR
VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED
OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

THIS CERTIFICATE HAS NOT BEEN REGISTERED OR QUALIFIED UNDER THE SECURITIES ACT
OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR THE SECURITIES LAWS OF ANY STATE.
ANY RESALE, PLEDGE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE OR ANY
INTEREST HEREIN WITHOUT SUCH REGISTRATION OR QUALIFICATION MAY BE MADE ONLY IN A
TRANSACTION WHICH DOES NOT REQUIRE SUCH REGISTRATION OR QUALIFICATION AND WHICH
IS IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND
SERVICING AGREEMENT REFERRED TO HEREIN.

NO TRANSFER OF THIS CERTIFICATE OR ANY INTEREST HEREIN MAY BE MADE TO (A) ANY
RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT THAT IS SUBJECT TO
THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA"), OR
SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE "CODE"), OR
ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A MATERIAL EXTENT, SIMILAR TO THE
FOREGOING PROVISIONS OF ERISA OR THE CODE, OR (B) ANY PERSON WHO IS DIRECTLY OR
INDIRECTLY PURCHASING THIS CERTIFICATE OR SUCH INTEREST HEREIN ON BEHALF OF, AS
NAMED FIDUCIARY OF, AS TRUSTEE OF, OR WITH ASSETS OF ANY SUCH RETIREMENT PLAN OR
OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT, EXCEPT IN ACCORDANCE WITH THE
PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING AGREEMENT REFERRED TO
HEREIN.

THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN CREDIT
SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP., WELLS FARGO BANK, N.A., LASALLE
BANK NATIONAL ASSOCIATION, LNR PARTNERS, INC., KEYCORP REAL ESTATE CAPITAL
MARKETS, INC., NCB, FSB, NATIONAL CONSUMER COOPERATIVE BANK, OR ANY OF THEIR
RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE NOR ANY OF THE UNDERLYING
MORTGAGE LOANS IS GUARANTEED BY ANY AGENCY OR INSTRUMENTALITY OF THE UNITED
STATES OR ANY OTHER PERSON.

SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A "REGULAR
INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT" (A "REMIC") AS THOSE
TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE CODE.

THE OUTSTANDING CERTIFICATE NOTIONAL AMOUNT HEREOF AT ANY TIME MAY BE LESS THAN
THE AMOUNT SHOWN ABOVE. THIS CERTIFICATE DOES NOT HAVE A CERTIFICATE PRINCIPAL
BALANCE AND WILL NOT ENTITLE THE HOLDER HEREOF TO DISTRIBUTIONS OF PRINCIPAL.

[FOR REGULATION S GLOBAL CERTIFICATES: PRIOR TO THE DATE THAT IS 40 DAYS AFTER
THE LATER OF (A) THE COMMENCEMENT OF THE OFFERING TO PERSONS OTHER THAN
DISTRIBUTORS IN RELIANCE ON REGULATION S UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, AND (B) THE DATE OF CLOSING OF THE OFFERING, THIS CERTIFICATE MAY NOT
BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED IN THE UNITED STATES OR TO A
U.S. PERSON EXCEPT PURSUANT TO AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS
OF THE SECURITIES ACT.]

           This certifies that [CEDE & CO.] [NATIONAL CONSUMER COOPERATIVE BANK]
is the registered owner of the Percentage Interest evidenced by this Certificate
(obtained by dividing the notional amount of this Certificate (its "Certificate
Notional Amount") as of the Closing Date by the aggregate notional amount of all
the Class [A-X] [A-SP] [A-Y] Certificates (their "Class Notional Amount") as of
the Closing Date) in that certain beneficial ownership interest in the Trust
Fund evidenced by all the Class [A-X] [A-SP] [A-Y] Certificates. The Trust Fund
was created and the Certificates were issued pursuant to a Pooling and Servicing
Agreement, dated as of September 1, 2006 (the "Agreement"), among Credit Suisse
First Boston Mortgage Securities Corp., as depositor (the "Depositor", which
term includes any successor entity under the Agreement), Keycorp Real Estate
Capital Markets, Inc., as master servicer (in such capacity, the "Master
Servicer No. 1", which term includes any successor entity under the Agreement),
NCB, FSB, as master servicer (in such capacity, the "Master Servicer No. 2",
which term includes any successor entity under the Agreement, and collectively
with the Master Servicer No. 1, the "Master Servicers"), LNR Partners, Inc., as
special servicer (in such capacity, the "Special Servicer No. 1", which term
includes any successor entity under the Agreement), National Consumer
Cooperative Bank as special servicer (in such capacity, the "Special Servicer
No. 2", which term includes any successor entity under the Agreement, and
collectively with Special Servicer No. 1 the "Special Servicers"), Wells Fargo
Bank, N.A., as trustee (the "Trustee", which term includes any successor entity
under the Agreement) and LaSalle Bank National Association (the "Certificate
Administrator", which term includes any successor entity under the Agreement), a
summary of certain of the pertinent provisions of which is set forth hereafter.
To the extent not defined herein, capitalized terms used herein have the
respective meanings assigned thereto in the Agreement. This Certificate is
issued under and is subject to the terms, provisions and conditions of the
Agreement, to which Agreement the Holder of this Certificate by virtue of its
acceptance hereof assents and by which such Holder is bound.

           Pursuant to the terms of the Agreement, beginning on the First
Distribution Date specified above, distributions will be made on that date (the
"Distribution Date") each month that is the fourth Business Day following the
Determination Date in such month, to the Person in whose name this Certificate
is registered at the close of business on the last Business Day of the month
immediately preceding the month of such distribution (the "Record Date"), in an
amount equal to the product of the Percentage Interest evidenced by this
Certificate and the amount required to be distributed to all the Holders of the
Class [A-X] [A-SP] [A-Y] Certificates on the applicable Distribution Date
pursuant to the Agreement. All distributions made under the Agreement on this
Certificate will be made by the Certificate Administrator by wire transfer of
immediately available funds to the account of the Person entitled thereto at a
bank or other entity having appropriate facilities therefor, if such
Certificateholder shall have provided the Certificate Administrator with wiring
instructions no later than the related Record Date (which wiring instructions
may be in the form of a standing order applicable to all subsequent
distributions), or otherwise by check mailed to the address of such
Certificateholder as it appears in the Certificate Register. Notwithstanding the
foregoing, the final distribution on this Certificate will be made in like
manner, but only upon presentation and surrender of this Certificate at the
offices of the Certificate Registrar or such other location specified in the
notice to the Holder hereof of such final distribution.

           The Certificates are limited in right of distribution to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Distribution Account, the Collection Account
and, if established, the REO Account or any Mortgage Loan Combination Custodial
Account may be made from time to time for purposes other than, and, in certain
cases, prior to, distributions to Certificateholders, such purposes including
the reimbursement of advances made, or certain expenses incurred, with respect
to the Mortgage Loans and the payment of interest on such advances and expenses.

           This Certificate is issuable in fully registered form only without
coupons. As provided in the Agreement and subject to certain limitations therein
set forth, this Certificate is exchangeable for new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest, as requested by the Holder surrendering the same.

           No transfer, sale, pledge or other disposition of this Certificate or
any interest herein shall be made unless that transfer, sale, pledge or other
disposition is exempt from the registration and/or qualification requirements of
the Securities Act and any applicable state securities laws, or is otherwise
made in accordance with the Securities Act and such state securities laws. If a
transfer of this Certificate is to be made without registration under the
Securities Act, then (except under limited circumstances specified in the
Agreement) the Certificate Registrar shall refuse to register such transfer
unless it receives (and, upon receipt, may conclusively rely upon) either: (i) a
certificate from the Certificateholder desiring to effect such transfer
substantially in the form attached as Exhibit F-1A to the Agreement; or (ii) a
certificate from the Certificateholder desiring to effect such transfer
substantially in the form attached as Exhibit F-1B to the Agreement and a
certificate from such Certificateholder's prospective Transferee substantially
in the form attached either as Exhibit F-2A or as Exhibit F-2B to the Agreement;
or (iii) an Opinion of Counsel satisfactory to the Trustee to the effect that
such transfer may be made without registration under the Securities Act (which
Opinion of Counsel shall not be an expense of the Trust or of the Depositor, the
Master Servicers, the Special Servicers, the Trustee, the Certificate
Administrator or the Certificate Registrar in their respective capacities as
such), together with the written certification(s) as to the facts surrounding
such transfer from the Certificateholder desiring to effect such transfer and/or
such Certificateholder's prospective Transferee on which such Opinion of Counsel
is based.

           If this Certificate constitutes a Rule 144A Global Certificate and a
transfer of any interest in this Certificate is to be made without registration
under the Securities Act, then (except under limited circumstances specified in
the Agreement) the Certificate Owner desiring to effect such transfer shall be
required to obtain either (i) a certificate from such Certificate Owner's
prospective Transferee substantially in the form attached as Exhibit F-2C to the
Agreement, or (ii) an Opinion of Counsel to the effect that such prospective
Transferee is a Qualified Institutional Buyer and such transfer may be made
without registration under the Securities Act. Except as discussed below, if
this Certificate constitutes a Rule 144A Global Certificate, then interests
herein shall not be transferred to any Person other than a Qualified
Institutional Buyer that takes delivery in the form of an interest in this Rule
144A Global Certificate.

           Notwithstanding the preceding paragraph, if this Certificate
constitutes a Rule 144A Global Certificate, then interests herein may be
transferred (without delivery of any certificate or Opinion of Counsel described
in the preceding paragraph) to any Person who takes delivery in the form of a
beneficial interest in the Regulation S Global Certificate of the same Class as
this Rule 144A Global Certificate upon delivery to the Certificate Registrar and
the Trustee of (x) a certificate from the Certificate Owner desiring to effect
such transfer substantially in the form attached as Exhibit F-1D to the
Agreement and a certificate from such Certificate Owner's prospective Transferee
substantially in the form attached as Exhibit F-2D to the Agreement and (y) such
written orders and instructions as are required under the applicable procedures
of DTC, Clearstream and/or Euroclear to direct the Certificate Administrator to
debit the account of a Depository Participant by a denomination of interests in
this Rule 144A Global Certificate, and credit the account of a Depository
Participant by a denomination of interests in such Regulation S Global
Certificate, that is equal to the denomination of beneficial interests in such
Class to be transferred. Upon delivery to the Certificate Registrar of such
certifications and such orders and instructions, the Certificate Administrator,
subject to and in accordance with the applicable procedures of DTC, shall reduce
the denomination of this Rule 144A Global Certificate, and increase the
denomination of the related Regulation S Global Certificate, by the denomination
of the beneficial interest in the subject Class specified in such orders and
instructions.

           Except as discussed below, if this Certificate constitutes a
Regulation S Global Certificate, then beneficial interests in this Certificate
shall not be transferred to any Person other than a non-United States Securities
Person that takes delivery in the form of an interest in this Certificate, and
the Certificate Owner desiring to effect such transfer shall be required to
obtain from such Certificate Owner's prospective Transferee a certification
substantially in the form attached as Exhibit F-2D to the Agreement. On or prior
to the Release Date, beneficial interests in any Regulation S Global Certificate
may be held only through Euroclear or Clearstream. After the Release Date,
beneficial interests in any Regulation S Global Certificate may be held through
Euroclear, Clearstream or any other direct account holder at DTC.

           Notwithstanding the preceding paragraph, if this Certificate
constitutes a Regulation S Global Certificate, then interests in this
Certificate may be transferred (without delivery of any certificate described in
the preceding paragraph) to any Person who takes delivery in the form of a
beneficial interest in the Rule 144A Global Certificate for the same Class as
this Regulation S Global Certificate upon delivery to the Certificate Registrar
and the Trustee of (i) a certificate from the Certificate Owner desiring to
effect such transfer substantially in the form attached as Exhibit F-1C to the
Agreement and a certificate from such Certificate Owner's prospective Transferee
substantially in the form attached as Exhibit F-2C to the Agreement and (ii)
such written orders and instructions as are required under the applicable
procedures of the Depository, Clearstream and/or Euroclear to direct the
Certificate Administrator to debit the account of a Depository Participant by a
denomination of interests in this Regulation S Global Certificate, and credit
the account of a Depository Participant by a denomination of interests in the
related Rule 144A Global Certificate, that is equal to the denomination of
beneficial interests to be transferred. Upon delivery to the Certificate
Administrator of such certifications and such orders and instructions, the
Certificate Administrator, subject to and in accordance with the applicable
procedures of the Depository, shall reduce the denomination of this Regulation S
Global Certificate, and increase the denomination of the related Rule 144A
Global Certificate, by the denomination of the beneficial interest in the
subject Class specified in such orders and instructions.

           Notwithstanding the foregoing, any interest in a Global Certificate
may be transferred by any Certificate Owner holding such interest to any Person
who takes delivery in the form of a Definitive Certificate of the same Class as
such Global Certificate upon delivery to the Certificate Registrar and the
Trustee of (i) such certifications and/or opinions as are contemplated above
with respect to transfers of this Certificate in definitive form and (ii) such
written orders and instructions as are required under the applicable procedures
of the Depository, Clearstream and/or Euroclear to direct the Trustee to debit
the account of a Depository Participant by a denomination of interests in such
Global Certificate. Upon delivery to the Certificate Registrar of the
certifications and/or opinions contemplated above with respect to transfers of
this Certificate in definitive form, the Trustee, subject to and in accordance
with the applicable procedures of the Depository, shall reduce the denomination
of the subject Global Certificate, and cause a Definitive Certificate of the
same Class as such Global Certificate, and in a denomination equal to the
reduction in the denomination of such Global Certificate, to be executed,
authenticated and delivered in accordance with this Agreement to the applicable
Transferee.

           The Global Certificates shall be deposited with the Trustee as
custodian for DTC and registered in the name of Cede & Co. as nominee of DTC.

           None of the Depositor, the Trustee, the Certificate Administrator or
the Certificate Registrar is obligated to register or qualify the Class [A-X]
[A-SP] [A-Y] Certificates under the Securities Act or any other securities law
or to take any action not otherwise required under the Agreement to permit the
transfer of this Certificate or any interest herein without registration or
qualification. Any Certificateholder or Certificate Owner desiring to effect a
transfer of this Certificate or any interest herein shall, and does hereby agree
to, indemnify Credit Suisse Securities (USA) LLC, the Depositor, the Trustee,
the Certificate Administrator, the Master Servicers, the Special Servicers, and
the Certificate Registrar against any liability that may result if the transfer
is not so exempt or is not made in accordance with such federal and state laws
or the provisions described in the preceding paragraphs.

           No transfer of this Certificate or any interest herein shall be made
(A) to any retirement plan or other employee benefit plan or arrangement,
including individual retirement accounts and annuities, Keogh plans and
collective investment funds and separate accounts in which such plans, accounts
or arrangements are invested, including insurance company general accounts, that
is subject to ERISA or Section 4975 of the Code (each, a "Plan"), or (B) to any
Person who is directly or indirectly purchasing this Certificate or any interest
herein on behalf of, as named fiduciary of, as trustee of, or with assets of a
Plan, if the purchase and holding of this Certificate or such interest herein by
the prospective Transferee would result in a violation of Section 406 or 407 of
ERISA or Section 4975 of the Code or would result in the imposition of an excise
tax under Section 4975 of the Code (or, in the case of a governmental plan,
would result in a violation of any federal, state or local law materially
similar to Section 406 or 407 of ERISA or Section 4975 of the Code (a "Similar
Law"). Except in limited circumstances, the Certificate Registrar shall refuse
to register the transfer of this Certificate (and, if applicable, any
Certificate Owner shall refuse to transfer an interest in this Certificate),
unless it has received from the prospective Transferee either (i) a
certification to the effect that such prospective Transferee is not a Plan and
is not directly or indirectly purchasing this Certificate on behalf of, as named
fiduciary of, as trustee of, or with assets of a Plan or a governmental plan
subject to Similar Law; or (ii) a certification to the effect that the purchase
and holding of this Certificate by such prospective Transferee is exempt from
the prohibited transaction provisions of Sections 406 and 407 of ERISA and
Section 4975 of the Code by reason of Sections I and III of Prohibited
Transaction Class Exemption 95-60; or (iii) if this Certificate is rated
investment grade by at least one of the Rating Agencies and is being acquired
by, on behalf of or with assets of a Plan in reliance upon Prohibited
Transaction Exemption 89-90, a certification to the effect that such Plan (X) is
an accredited investor as defined in Rule 501(a)(1) of Regulation D of the
Securities Act, (Y) is not sponsored (within the meaning of Section 3(16)(B) of
ERISA) by the Trustee, the Certificate Administrator, any Exemption-Favored
Party, the Depositor, any Mortgage Loan Seller, any Master Servicer, either
Special Servicer, any Primary Servicer, any Sub-Servicer or any Borrower with
respect to Mortgage Loans constituting more than 5% of the aggregate unamortized
principal of all the Mortgage Loans determined as of the Closing Date, or by an
Affiliate of any such Person, and (Z) agrees that it will obtain from each of
its Transferees a written representation that such Transferee, if a Plan,
satisfies the requirements of the immediately preceding clauses (iii)(X) and
(iii)(Y), together with a written agreement that such Transferee will obtain
from each of its Transferees that are Plans a similar written representation
regarding satisfaction of the requirements of the immediately preceding clauses
(iii)(X) and (iii)(Y); or (iv) in the case of a governmental plan subject to
Similar Law, a certification that the purchase and holding of such Certificate
by the governmental plan would not result in a violation of, or imposition of
tax under, such Similar Law; or (v) a certification of facts and an Opinion of
Counsel which otherwise establish to the reasonable satisfaction of the
Certificate Administrator, (or, if applicable, the Certificate Owner effecting
the transfer) that such transfer will not result in a violation of Section 406
or 407 of ERISA or Section 4975 of the Code or result in the imposition of an
excise tax under Section 4975 of the Code (or, in the case of a governmental
plan, would not result in a violation of applicable Similar Law).

           If a Person is acquiring this Certificate as a fiduciary or agent for
one or more accounts, such Person shall be required to deliver to the
Certificate Registrar a certification to the effect that, and such other
evidence as may be reasonably required by the Certificate Administrator to
confirm that, it has (i) sole investment discretion with respect to each such
account and (ii) full power to make the acknowledgments, representations,
warranties, certifications and/or agreements with respect to each such account
as described above in this Certificate.

           As provided in the Agreement and subject to certain limitations
therein set forth, the transfer of this Certificate is registrable in the
Certificate Register upon surrender of this Certificate for registration of
transfer at the offices of the Certificate Registrar, duly endorsed by, or
accompanied by a written instrument of transfer in the form satisfactory to the
Certificate Registrar duly executed by, the Holder hereof or his attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

           No service charge will be imposed for any registration of transfer or
exchange of this Certificate, but the Certificate Registrar may require payment
of a sum sufficient to cover any tax or other governmental charge that may be
imposed in connection with any transfer or exchange of this Certificate.

           Notwithstanding the foregoing, for so long as this Certificate is
registered in the name of Cede & Co. or in such other name as is requested by an
authorized representative of DTC, transfers of interests in this Certificate
shall be made through the book-entry facilities of DTC, and accordingly, this
Certificate shall constitute a Book-Entry Certificate.

           The Depositor, the Master Servicers, the Special Servicers, the
Trustee, the Certificate Administrator, the Certificate Registrar and any agent
of the Depositor, the Master Servicers, the Special Servicers, the Trustee, the
Certificate Administrator or the Certificate Registrar may treat the Person in
whose name this Certificate is registered as the owner hereof for all purposes,
and none of the Depositor, the Master Servicers, the Special Servicers, the
Trustee, the Certificate Administrator, the Certificate Registrar or any such
agent shall be affected by notice to the contrary.

           Subject to certain terms and conditions set forth in the Agreement,
the Trust Fund and the obligations created by the Agreement shall terminate upon
distribution (or provision for distribution) to the Certificateholders of all
amounts held by or on behalf of the Certificate Administrator and required to be
distributed to them pursuant to the Agreement following the earlier of (i) the
final payment or other liquidation (or any advance with respect thereto) of the
last Mortgage Loan or REO Property remaining in the Trust Fund and (ii) the
purchase by the Master Servicers, the Special Servicers, or any single
Controlling Class Certificateholder or group of Controlling Class
Certificateholders with a majority interest in the Controlling Class, at a price
determined as provided in the Agreement, of all the Mortgage Loans and each REO
Property remaining in the Trust Fund. The Agreement permits, but does not
require, the Master Servicers, the Special Servicers, or any single Controlling
Class Certificateholder or group of Controlling Class Certificateholders with a
majority interest in the Controlling Class to purchase from the Trust Fund all
the Mortgage Loans and each REO Property remaining therein. The exercise of such
right may effect early retirement of the Certificates; however, such right to
purchase is subject to the aggregate Stated Principal Balance of the Mortgage
Pool at the time of purchase being less than 1.0% of the Initial Pool Balance.

           The Agreement permits, with certain exceptions therein provided, the
amendment thereof and the modification of the rights and obligations of the
Depositor, the Master Servicers, the Special Servicers, the Certificate
Administrator and the Trustee and the rights of the Certificateholders under the
Agreement at any time by the Depositor, the Master Servicers, the Special
Servicers, the Certificate Administrator and the Trustee with the consent of the
Holders of Certificates entitled to not less than 51% of the Voting Rights
allocated to all of the Classes materially affected by the amendment (subject to
certain third-party beneficiary consent rights). Any such consent by the Holder
of this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, including any amendment
necessary to maintain the status of the 828-850 Madison Avenue Loan REMIC, the
Lower-Tier REMIC or the Upper -Tier REMIC as a REMIC, without the consent of the
Holders of any of the Certificates.

           Unless the certificate of authentication hereon has been executed by
the Certificate Registrar, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

           The registered Holder hereof, by its acceptance hereof, agrees that
it will look solely to the Trust Fund (to the extent of its rights therein) for
distributions hereunder.

           This Certificate shall be construed in accordance with the laws of
the State of New York applicable to agreements negotiated, made and to be
performed entirely in said State, and the obligations, rights and remedies of
the Holder hereof shall be determined in accordance with such laws.

<PAGE>

           IN WITNESS WHEREOF, the Certificate Administrator has caused this
Certificate to be duly executed.

                               LASALLE BANK NATIONAL ASSOCIATION
                               as Certificate Administrator

                               By:
                                  ---------------------------------------
                                       Authorized Representative

                     CERTIFICATE OF AUTHENTICATION

           This is one of the Class [A-X] [A-SP] [A-Y] Certificates referred to
in the within-mentioned Agreement.

Dated: September 28, 2006

                               LASALLE BANK NATIONAL ASSOCIATION
                               as Certificate Registrar

                               By:
                                  ---------------------------------------
                                       Authorized Representative

<PAGE>

                                   ASSIGNMENT

            FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and
transfer(s) unto
________________________________________________________________________________
________________________________________________________________________________
          (please print or typewrite name and address including postal
                              zip code of assignee)

the beneficial ownership interest in the Trust Fund evidenced by the within
Mortgage Pass-Through Certificate and hereby authorize(s) the registration of
transfer of such interest to assignee on the Certificate Register of the Trust
Fund.

           I (we) further direct the Certificate Registrar to issue a new
Mortgage Pass-Through Certificate of a like Percentage Interest and Class to the
above named assignee and deliver such Mortgage Pass-Through Certificate to the
following address: _____________________________________________________________
________________________________________________________________________________

Dated:

                               _________________________________________________
                               Signature by or on behalf of Assignor

                               _________________________________________________
                               Signature Guaranteed

                       DISTRIBUTION INSTRUCTIONS

           The Assignee should include the following for purposes of
distribution:

           Distributions shall, if permitted, be made by wire transfer or
otherwise, in immediately available funds, to __________________________________
________________________for the account of _____________________________________
________________________.

           Distributions made by check (such check to be made payable to
___________________________) and all applicable statements and notices should be
mailed to ______________________________________________________________________
______________________.

            This information is provided by __________________________________,
the Assignee named above, or __________________________________________________,
as its agent.

<PAGE>

                                   EXHIBIT A-3

 FORM OF CLASS B, CLASS C, CLASS D, CLASS E, CLASS F, CLASS G, CLASS H, CLASS J,
          CLASS K, CLASS L, CLASS M, CLASS N, CLASS O, CLASS P, CLASS Q
                            AND CLASS S CERTIFICATES

      CLASS [B] [C] [D] [E] [F] [G] [H] [J] [K] [L] [M] [N] [O] [P] [Q] [S]
                  COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATE,
                                 SERIES 2006-C4

This is one of a series of commercial mortgage pass-through certificates
(collectively, the "Certificates"), issued in multiple classes (each, a
"Class"), which series of Certificates evidences the entire beneficial ownership
interest in a trust fund (the "Trust Fund") consisting primarily of a pool of
multifamily and commercial mortgage loans (the "Mortgage Loans"), such pool
being formed and sold by

              CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.

Pass-Through                           Rate: [Variable] Class Principal Balance
                                       of the [B] [C] [D] [E] [F] [G] [H] [J]
                                       [K] [L] [M] [N] [O] [P] [Q] [S]
                                       Certificates as of the Closing Date:
                                       $__________________

Closing Date: September 28, 2006       Initial Certificate Principal
                                       Balance of this Certificate as of
First Distribution Date: [October],    the Closing Date:
2006                                   $__________________

Master Servicers:                      Aggregate Stated Principal Balance
Keycorp Real Estate Capital Markets,   of the Mortgage Loans as of the
Inc.,                                  Closing Date: ("Initial Pool
NCB, FSB                               Balance"): $4,273,091,953

Special Servicers:
LNR Partners, Inc.
National Consumer Cooperative Bank
                                       Trustee:
                                       Wells Fargo Bank, N.A.

                                       Certificate Administrator:
                                       LaSalle Bank National Association

Certificate No. [B] [C] [D] [E] [F]    CUSIP No.: _____________
[G] [H] [J] [K] [L] [M] [N] [O] [P]    ISIN No.: _____________
[Q] [S]-___

<PAGE>

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE CERTIFICATE
REGISTRAR OR ANY AGENT THEREOF FOR REGISTRATION OF TRANSFER, EXCHANGE, OR
PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR
IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND
ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR
VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED
OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

THIS CERTIFICATE HAS NOT BEEN REGISTERED OR QUALIFIED UNDER THE SECURITIES ACT
OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR THE SECURITIES LAWS OF ANY STATE.
ANY RESALE, PLEDGE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE OR ANY
INTEREST HEREIN WITHOUT SUCH REGISTRATION OR QUALIFICATION MAY BE MADE ONLY IN A
TRANSACTION WHICH DOES NOT REQUIRE SUCH REGISTRATION OR QUALIFICATION AND WHICH
IS IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND
SERVICING AGREEMENT REFERRED TO HEREIN.

NO TRANSFER OF THIS CERTIFICATE OR ANY INTEREST HEREIN MAY BE MADE TO (A) ANY
RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT THAT IS SUBJECT TO
THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA"), OR
SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE "CODE"), OR
ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A MATERIAL EXTENT, SIMILAR TO THE
FOREGOING PROVISIONS OF ERISA OR THE CODE, OR (B) ANY PERSON WHO IS DIRECTLY OR
INDIRECTLY PURCHASING THIS CERTIFICATE OR SUCH INTEREST HEREIN ON BEHALF OF, AS
NAMED FIDUCIARY OF, AS TRUSTEE OF, OR WITH ASSETS OF ANY SUCH RETIREMENT PLAN OR
OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT, EXCEPT IN ACCORDANCE WITH THE
PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING AGREEMENT REFERRED TO
HEREIN.

THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP., WELLS FARGO BANK,
N.A., LASALLE BANK NATIONAL ASSOCIATION, LNR PARTNERS, INC., KEYCORP
REAL ESTATE CAPITAL MARKETS, INC., NCB, FSB, NATIONAL CONSUMER
COOPERATIVE BANK, OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS
CERTIFICATE NOR ANY OF THE UNDERLYING MORTGAGE LOANS IS GUARANTEED BY
ANY AGENCY OR INSTRUMENTALITY OF THE UNITED STATES OR ANY OTHER PERSON.

THIS CERTIFICATE IS SUBORDINATE TO ONE OR MORE CLASSES OF CERTIFICATES OF THE
SAME SERIES AS AND TO THE EXTENT DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT REFERRED TO HEREIN.

SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A "REGULAR
INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT" (A "REMIC") AS THOSE
TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE CODE.

THE OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
LESS THAN THE AMOUNT SHOWN ABOVE.

[FOR REGULATION S GLOBAL CERTIFICATES: PRIOR TO THE DATE THAT IS 40 DAYS AFTER
THE LATER OF (A) THE COMMENCEMENT OF THE OFFERING TO PERSONS OTHER THAN
DISTRIBUTORS IN RELIANCE ON REGULATION S UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, AND (B) THE DATE OF CLOSING OF THE OFFERING, THIS CERTIFICATE MAY NOT
BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED IN THE UNITED STATES OR TO A
U.S. PERSON EXCEPT PURSUANT TO AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS
OF THE SECURITIES ACT.]

           This certifies that CEDE & CO. is the registered owner of the
Percentage Interest evidenced by this Certificate (obtained by dividing the
principal amount of this Certificate (its "Certificate Principal Balance") as of
the Closing Date by the aggregate principal amount of all the Class[B] [C] [D]
[E] [F] [G] [H] [J] [K] [L] [M] [N] [O] [P] [Q] [S] Certificates (their "Class
Principal Balance") as of the Closing Date) in that certain beneficial ownership
interest in the Trust Fund evidenced by all the Class [B] [C] [D] [E] [F] [G]
[H] [J] [K] [L] [M] [N] [O] [P] [Q] [S] Certificates. The Trust Fund was created
and the Certificates were issued pursuant to a Pooling and Servicing Agreement,
dated as of September 1, 2006 (the "Agreement"), among Credit Suisse First
Boston Mortgage Securities Corp., as depositor (the "Depositor", which term
includes any successor entity under the Agreement), Keycorp Real Estate Capital
Markets, Inc., as master servicer (in such capacity, the "Master Servicer No.
1", which term includes any successor entity under the Agreement), NCB, FSB, as
master servicer (in such capacity, the "Master Servicer No. 2", which term
includes any successor entity under the Agreement, and collectively with the
Master Servicer No. 1, the "Master Servicers"), LNR Partners, Inc., as special
servicer (in such capacity, the "Special Servicer No. 1", which term includes
any successor entity under the Agreement), National Consumer Cooperative Bank as
special servicer (in such capacity, the "Special Servicer No. 2", which term
includes any successor entity under the Agreement, and collectively with Special
Servicer No. 1 the "Special Servicers"), Wells Fargo Bank, N.A., as trustee (the
"Trustee", which term includes any successor entity under the Agreement) and
LaSalle Bank National Association (the "Certificate Administrator", which term
includes any successor entity under the Agreement), a summary of certain of the
pertinent provisions of which is set forth hereafter. To the extent not defined
herein, capitalized terms used herein have the respective meanings assigned
thereto in the Agreement. This Certificate is issued under and is subject to the
terms, provisions and conditions of the Agreement, to which Agreement the Holder
of this Certificate by virtue of its acceptance hereof assents and by which such
Holder is bound.

           Pursuant to the terms of the Agreement, beginning on the First
Distribution Date specified above, distributions will be made on that date (the
"Distribution Date") each month that is the fourth Business Day following the
Determination Date in such month, to the Person in whose name this Certificate
is registered at the close of business on the last Business Day of the month
immediately preceding the month of such distribution (the "Record Date"), in an
amount equal to the product of the Percentage Interest evidenced by this
Certificate and the amount required to be distributed to all the Holders of the
Class [B] [C] [D] [E] [F] [G] [H] [J] [K] [L] [M] [N] [O] [P] [Q] [S]
Certificates on the applicable Distribution Date pursuant to the Agreement. All
distributions made under the Agreement on this Certificate will be made by the
Certificate Administrator by wire transfer of immediately available funds to the
account of the Person entitled thereto at a bank or other entity having
appropriate facilities therefor, if such Certificateholder shall have provided
the Certificate Administrator with wiring instructions no later than the related
Record Date (which wiring instructions may be in the form of a standing order
applicable to all subsequent distributions), or otherwise by check mailed to the
address of such Certificateholder as it appears in the Certificate Register.
Notwithstanding the foregoing, the final distribution on this Certificate
(determined without regard to any possible future reimbursement of any portion
of a Realized Loss in respect of this Certificate) will be made in like manner,
but only upon presentation and surrender of this Certificate at the offices of
the Certificate Registrar or such other location specified in the notice to the
Holder hereof of such final distribution.

           The Certificates are limited in right of distribution to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Distribution Account, the Collection Account
and, if established, the REO Account or any Mortgage Loan Combination Custodial
Account may be made from time to time for purposes other than, and, in certain
cases, prior to, distributions to Certificateholders, such purposes including
the reimbursement of advances made, or certain expenses incurred, with respect
to the Mortgage Loans and the payment of interest on such advances and expenses.

           Any distribution to the Holder of this Certificate in reduction of
the Certificate Principal Balance hereof is binding on such Holder and all
future Holders of this Certificate and any Certificate issued upon the transfer
hereof or in exchange herefor or in lieu hereof whether or not notation of such
distribution is made upon this Certificate.

           This Certificate is issuable in fully registered form only without
coupons. As provided in the Agreement and subject to certain limitations therein
set forth, this Certificate is exchangeable for new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest, as requested by the Holder surrendering the same.

           No transfer, sale, pledge or other disposition of this Certificate or
any interest herein shall be made unless that transfer, sale, pledge or other
disposition is exempt from the registration and/or qualification requirements of
the Securities Act and any applicable state securities laws, or is otherwise
made in accordance with the Securities Act and such state securities laws. If a
transfer of this Certificate is to be made without registration under the
Securities Act, then (except under limited circumstances specified in the
Agreement) the Certificate Registrar shall refuse to register such transfer
unless it receives (and, upon receipt, may conclusively rely upon) either: (i) a
certificate from the Certificateholder desiring to effect such transfer
substantially in the form attached as Exhibit F-1A to the Agreement; or (ii) a
certificate from the Certificateholder desiring to effect such transfer
substantially in the form attached as Exhibit F-1B to the Agreement and a
certificate from such Certificateholder's prospective Transferee substantially
in the form attached either as Exhibit F-2A or as Exhibit F-2B to the Agreement;
or (iii) an Opinion of Counsel satisfactory to the Trustee to the effect that
such transfer may be made without registration under the Securities Act (which
Opinion of Counsel shall not be an expense of the Trust or of the Depositor, the
Master Servicers, the Special Servicers, the Certificate Administrator, the
Trustee or the Certificate Registrar in their respective capacities as such),
together with the written certification(s) as to the facts surrounding such
transfer from the Certificateholder desiring to effect such transfer and/or such
Certificateholder's prospective Transferee on which such Opinion of Counsel is
based.

           If this Certificate constitutes a Rule 144A Global Certificate and a
transfer of any interest in this Certificate is to be made without registration
under the Securities Act, then (except under limited circumstances specified in
the Agreement) the Certificate Owner desiring to effect such transfer shall be
required to obtain either (i) a certificate from such Certificate Owner's
prospective Transferee substantially in the form attached as Exhibit F-2C to the
Agreement, or (ii) an Opinion of Counsel to the effect that such prospective
Transferee is a Qualified Institutional Buyer and such transfer may be made
without registration under the Securities Act. Except as discussed below, if
this Certificate constitutes a Rule 144A Global Certificate, then interests
herein shall not be transferred to any Person other than a Qualified
Institutional Buyer that takes delivery other than in the form of an interest in
this Rule 144A Global Certificate.

           Notwithstanding the preceding paragraph, if this Certificate
constitutes a Rule 144A Global Certificate, then interests herein may be
transferred (without delivery of any certificate or Opinion of Counsel described
in the preceding paragraph) to any Person who takes delivery in the form of a
beneficial interest in the Regulation S Global Certificate of the same Class as
this Rule 144A Global Certificate upon delivery to the Certificate Registrar and
the Trustee of (x) a certificate from the Certificate Owner desiring to effect
such transfer substantially in the form attached as Exhibit F-1D to the
Agreement and a certificate from such Certificate Owner's prospective Transferee
substantially in the form attached as Exhibit F-2D to the Agreement and (y) such
written orders and instructions as are required under the applicable procedures
of DTC, Clearstream and/or Euroclear to direct the Certificate Administrator to
debit the account of a Depository Participant by a denomination of interests in
this Rule 144A Global Certificate, and credit the account of a Depository
Participant by a denomination of interests in such Regulation S Global
Certificate, that is equal to the denomination of beneficial interests in such
Class to be transferred. Upon delivery to the Certificate Registrar of such
certifications and such orders and instructions, the Certificate Administrator,
subject to and in accordance with the applicable procedures of DTC, shall reduce
the denomination of this Rule 144A Global Certificate, and increase the
denomination of the related Regulation S Global Certificate, by the denomination
of the beneficial interest in the subject Class specified in such orders and
instructions.

           Except as discussed below, if this Certificate constitutes a
Regulation S Global Certificate, then beneficial interests in this Certificate
shall not be transferred to any Person other than a non-United States Securities
Person that takes delivery in the form of an interest in this Certificate, and
the Certificate Owner desiring to effect such transfer shall be required to
obtain from such Certificate Owner's prospective Transferee a certification
substantially in the form attached as Exhibit F-2D to the Agreement. On or prior
to the Release Date, beneficial interests in any Regulation S Global Certificate
may be held only through Euroclear or Clearstream. After the Release Date,
beneficial interests in any Regulation S Global Certificate may be held through
Euroclear, Clearstream or any other direct account holder at DTC.

           Notwithstanding the preceding paragraph, if this Certificate
constitutes a Regulation S Global Certificate, then interests in this
Certificate may be transferred (without delivery of any certificate described in
the preceding paragraph) to any Person who takes delivery in the form of a
beneficial interest in the Rule 144A Global Certificate for the same Class as
this Regulation S Global Certificate upon delivery to the Certificate Registrar
and the Trustee of (i) a certificate from the Certificate Owner desiring to
effect such transfer substantially in the form attached as Exhibit F-1C to the
Agreement and a certificate from such Certificate Owner's prospective Transferee
substantially in the form attached as Exhibit F-2C to the Agreement and (ii)
such written orders and instructions as are required under the applicable
procedures of the Depository, Clearstream and/or Euroclear to direct the
Certificate Administrator to debit the account of a Depository Participant by a
denomination of interests in this Regulation S Global Certificate, and credit
the account of a Depository Participant by a denomination of interests in the
related Rule 144A Global Certificate, that is equal to the denomination of
beneficial interests to be transferred. Upon delivery to the Certificate
Administrator of such certifications and such orders and instructions, the
Certificate Administrator, subject to and in accordance with the applicable
procedures of the Depository, shall reduce the denomination of this Regulation S
Global Certificate, and increase the denomination of the related Rule 144A
Global Certificate, by the denomination of the beneficial interest in the
subject Class specified in such orders and instructions.

           Notwithstanding the foregoing, any interest in a Global Certificate
may be transferred by any Certificate Owner holding such interest to any Person
who takes delivery in the form of a Definitive Certificate of the same Class as
such Global Certificate upon delivery to the Certificate Registrar and the
Trustee of (i) such certifications and/or opinions as are contemplated above
with respect to transfers of this Certificate in definitive form and (ii) such
written orders and instructions as are required under the applicable procedures
of the Depository, Clearstream and/or Euroclear to direct the Trustee to debit
the account of a Depository Participant by a denomination of interests in such
Global Certificate. Upon delivery to the Certificate Registrar of the
certifications and/or opinions contemplated above with respect to transfers of
this Certificate in definitive form, the Trustee, subject to and in accordance
with the applicable procedures of the Depository, shall reduce the denomination
of the subject Global Certificate, and cause a Definitive Certificate of the
same Class as such Global Certificate, and in a denomination equal to the
reduction in the denomination of such Global Certificate, to be executed,
authenticated and delivered in accordance with this Agreement to the applicable
Transferee.

           The Global Certificates shall be deposited with the Trustee as
custodian for DTC and registered in the name of Cede & Co. as nominee of DTC.

           None of the Depositor, the Trustee, the Certificate Administrator or
the Certificate Registrar is obligated to register or qualify the Class [B] [C]
[D] [E] [F] [G] [H] [J] [K] [L] [M] [N] [O] [P] [Q] [S] Certificates under the
Securities Act or any other securities law or to take any action not otherwise
required under the Agreement to permit the transfer of this Certificate or any
interest herein without registration or qualification. Any Certificateholder or
Certificate Owner desiring to effect a transfer of this Certificate or any
interest herein shall, and does hereby agree to, indemnify the Depositor, Credit
Suisse Securities (USA) LLC, the Trustee, the Certificate Administrator, the
Master Servicers, the Special Servicers, and the Certificate Registrar against
any liability that may result if the transfer is not so exempt or is not made in
accordance with such federal and state laws or the provisions described in the
preceding paragraphs.

           No transfer of this Certificate or any interest herein shall be made
(A) to any retirement plan or other employee benefit plan or arrangement,
including individual retirement accounts and annuities, Keogh plans and
collective investment funds and separate accounts in which such plans, accounts
or arrangements are invested, including insurance company general accounts, that
is subject to ERISA or Section 4975 of the Code (each, a "Plan"), or (B) to any
Person who is directly or indirectly purchasing this Certificate or any interest
herein on behalf of, as named fiduciary of, as trustee of, or with assets of a
Plan, if the purchase and holding of this Certificate or such interest herein by
the prospective Transferee would result in a violation of Section 406 or 407 of
ERISA or Section 4975 of the Code or would result in the imposition of an excise
tax under Section 4975 of the Code (or, in the case of a governmental plan,
would result in a violation of any federal, state or local law materially
similar to Section 406 or 407 of ERISA or Section 4975 of the Code (a "Similar
Law"). Except in limited circumstances, the Certificate Registrar shall refuse
to register the transfer of this Certificate (and, if applicable, any
Certificate Owner shall refuse to transfer an interest in this Certificate),
unless it has received from the prospective Transferee either (i) a
certification to the effect that such prospective Transferee is not a Plan and
is not directly or indirectly purchasing this Certificate on behalf of, as named
fiduciary of, as trustee of, or with assets of a Plan or a governmental plan
subject to Similar Law; or (ii) a certification to the effect that the purchase
and holding of this Certificate by such prospective Transferee is exempt from
the prohibited transaction provisions of Sections 406 and 407 of ERISA and
Section 4975 of the Code by reason of Sections I and III of Prohibited
Transaction Class Exemption 95-60; or (iii) if this Certificate is rated
investment grade by at least one of the Rating Agencies and is being acquired
by, on behalf of or with assets of a Plan in reliance upon Prohibited
Transaction Exemption 89-90, a certification to the effect that such Plan (X) is
an accredited investor as defined in Rule 501(a)(1) of Regulation D of the
Securities Act, (Y) is not sponsored (within the meaning of Section 3(16)(B) of
ERISA) by the Trustee, the Certificate Administrator, any Exemption-Favored
Party, the Depositor, any Mortgage Loan Seller, any Master Servicer, either
Special Servicer, any Primary Servicer, any Sub-Servicer or any Borrower with
respect to Mortgage Loans constituting more than 5% of the aggregate unamortized
principal of all the Mortgage Loans determined as of the Closing Date, or by an
Affiliate of any such Person, and (Z) agrees that it will obtain from each of
its Transferees a written representation that such Transferee, if a Plan,
satisfies the requirements of the immediately preceding clauses (iii)(X) and
(iii)(Y), together with a written agreement that such Transferee will obtain
from each of its Transferees that are Plans a similar written representation
regarding satisfaction of the requirements of the immediately preceding clauses
(iii)(X) and (iii)(Y); or (iv) in the case of a governmental plan subject to
Similar Law, a certification that the purchase and holding of such Certificate
by the governmental plan would not result in a violation of, or imposition of
tax under, such Similar Law; or (v) a certification of facts and an Opinion of
Counsel which otherwise establish to the reasonable satisfaction of the
Certificate Administrator, (or, if applicable, the Certificate Owner effecting
the transfer) that such transfer will not result in a violation of Section 406
or 407 of ERISA or Section 4975 of the Code or result in the imposition of an
excise tax under Section 4975 of the Code (or, in the case of a governmental
plan, would not result in a violation of applicable Similar Law).

           If a Person is acquiring this Certificate as a fiduciary or agent for
one or more accounts, such Person shall be required to deliver to the
Certificate Registrar a certification to the effect that, and such other
evidence as may be reasonably required by the Certificate Administrator to
confirm that, it has (i) sole investment discretion with respect to each such
account and (ii) full power to make the acknowledgments, representations,
warranties, certifications and/or agreements with respect to each such account
described above in this Certificate.

           As provided in the Agreement and subject to certain limitations
therein set forth, the transfer of this Certificate is registrable in the
Certificate Register upon surrender of this Certificate for registration of
transfer at the offices of the Certificate Registrar, duly endorsed by, or
accompanied by a written instrument of transfer in the form satisfactory to the
Certificate Registrar duly executed by, the Holder hereof or his attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

           No service charge will be imposed for any registration of transfer or
exchange of this Certificate, but the Certificate Registrar may require payment
of a sum sufficient to cover any tax or other governmental charge that may be
imposed in connection with any transfer or exchange of this Certificate.

           Notwithstanding the foregoing, for so long as this Certificate is
registered in the name of Cede & Co. or in such other name as is requested by an
authorized representative of DTC, transfers of interests in this Certificate
shall be made through the book-entry facilities of DTC, and accordingly, this
Certificate shall constitute a Book-Entry Certificate.

           The Depositor, the Master Servicers, the Special Servicers, the
Trustee, the Certificate Administrator, the Certificate Registrar and any agent
of the Depositor, the Master Servicers, the Special Servicers, the Trustee, the
Certificate Administrator or the Certificate Registrar may treat the Person in
whose name this Certificate is registered as the owner hereof for all purposes,
and none of the Depositor, the Master Servicers, the Special Servicers, the
Trustee, the Certificate Administrator, the Certificate Registrar or any such
agent shall be affected by notice to the contrary.

           Subject to certain terms and conditions set forth in the Agreement,
the Trust Fund and the obligations created by the Agreement shall terminate upon
distribution (or provision for distribution) to the Certificateholders of all
amounts held by or on behalf of the Certificate Administrator and required to be
distributed to them pursuant to the Agreement following the earlier of (i) the
final payment or other liquidation (or any advance with respect thereto) of the
last Mortgage Loan or REO Property remaining in the Trust Fund, (ii) the
purchase by the Master Servicers, the Special Servicers, or any single
Controlling Class Certificateholder or group of Controlling Class
Certificateholders with a majority interest in the Controlling Class, at a price
determined as provided in the Agreement, of all the Mortgage Loans and each REO
Property remaining in the Trust Fund. The Agreement permits, but does not
require, the Master Servicers, the Special Servicers, or any single Controlling
Class Certificateholder or group of Controlling Class Certificateholders with a
majority interest in the Controlling Class to purchase from the Trust Fund all
the Mortgage Loans and each REO Property remaining therein. The exercise of such
right may effect early retirement of the Certificates; however, such right to
purchase is subject to the aggregate Stated Principal Balance of the Mortgage
Pool at the time of purchase being less than 1.0% of the Initial Pool Balance.

           The Agreement permits, with certain exceptions therein provided, the
amendment thereof and the modification of the rights and obligations of the
Depositor, the Master Servicers, the Special Servicers, the Certificate
Administrator and the Trustee and the rights of the Certificateholders under the
Agreement at any time by the Depositor, the Master Servicers, the Special
Servicers, the Certificate Administrator and the Trustee with the consent of the
Holders of Certificates entitled to not less than 51% of the Voting Rights
allocated to all of the Classes materially affected by the amendment (subject to
certain third-party beneficiary consent rights). Any such consent by the Holder
of this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, including any amendment
necessary to maintain the status of the 828-850 Madison Avenue Loan REMIC, the
Lower-Tier REMIC or the Upper -Tier REMIC as a REMIC, without the consent of the
Holders of any of the Certificates.

           Unless the certificate of authentication hereon has been executed by
the Certificate Registrar, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

           The registered Holder hereof, by its acceptance hereof, agrees that
it will look solely to the Trust Fund (to the extent of its rights therein) for
distributions hereunder.

           This Certificate shall be construed in accordance with the laws of
the State of New York applicable to agreements negotiated, made and to be
performed entirely in said State, and the obligations, rights and remedies of
the Holder hereof shall be determined in accordance with such laws.

<PAGE>

           IN WITNESS WHEREOF, the Certificate Administrator has caused this
Certificate to be duly executed.

                               LASALLE BANK NATIONAL ASSOCIATION
                               as Certificate Administrator

                               By:
                                  ------------------------------------------
                                       Authorized Representative

                     CERTIFICATE OF AUTHENTICATION

           This is one of the Class [B] [C] [D] [E] [F] [G] [H] [J] [K] [L] [M]
[N] [O] [P] [Q] [S] Certificates referred to in the within-mentioned Agreement.

Dated: September 28, 2006

                               LASALLE BANK NATIONAL ASSOCIATION
                               as Certificate Registrar

                               By:
                                  ------------------------------------------
                                  Authorized Representative

<PAGE>

                                   ASSIGNMENT

            FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and
transfer(s) unto
________________________________________________________________________________
________________________________________________________________________________
          (please print or typewrite name and address including postal
                              zip code of assignee)

the beneficial ownership interest in the Trust Fund evidenced by the within
Mortgage Pass-Through Certificate and hereby authorize(s) the registration of
transfer of such interest to assignee on the Certificate Register of the Trust
Fund.

           I (we) further direct the Certificate Registrar to issue a new
Mortgage Pass-Through Certificate of a like Percentage Interest and Class to the
above named assignee and deliver such Mortgage Pass-Through Certificate to the
following address: _____________________________________________________________
________________________________________________________________________________

Dated:

                               _________________________________________________
                               Signature by or on behalf of Assignor

                               _________________________________________________
                               Signature Guaranteed

                       DISTRIBUTION INSTRUCTIONS

           The Assignee should include the following for purposes of
distribution:

           Distributions shall, if permitted, be made by wire transfer or
otherwise, in immediately available funds, to __________________________________
________________________for the account of _____________________________________
________________________.

           Distributions made by check (such check to be made payable to
___________________________) and all applicable statements and notices should be
mailed to ______________________________________________________________________
______________________.

            This information is provided by __________________________________,
the Assignee named above, or __________________________________________________,
as its agent.

<PAGE>

                                   EXHIBIT A-4

                          FORM OF CLASS V CERTIFICATES

              CLASS V COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATE,
                                 SERIES 2006-C4

This is one of a series of commercial mortgage pass-through certificates
(collectively, the "Certificates"), issued in multiple classes (each, a
"Class"), which series of Certificates evidences the entire beneficial ownership
interest in a trust fund (the "Trust Fund") consisting primarily of a pool of
multifamily and commercial mortgage loans (the "Mortgage Loans"), such pool
being formed and sold by

              CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.

Closing Date: September 28, 2006     Percentage Interest evidenced by
                                     this Class V Certificate: 100%
First Distribution Date: [October],
2006

Master Servicers:                    Aggregate Stated Principal Balance
KeyCorp Real Estate Capital          of the Mortgage Loans as of the
Markets, Inc.,                       Closing Date ("Initial Pool
NCB, FSB                             Balance"): $4,273,091,953

Special Servicers:                   Trustee:
LNR Partners, Inc.                   Wells Fargo Bank, N.A.
National Consumer Cooperative Bank
                                     Certificate Administrator:
                                     LaSalle Bank National Association

Certificate No. V-___                CUSIP No.: ______________________

<PAGE>

THIS CERTIFICATE HAS NOT BEEN REGISTERED OR QUALIFIED UNDER THE SECURITIES ACT
OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR THE SECURITIES LAWS OF ANY STATE.
ANY RESALE, PLEDGE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE OR ANY
INTEREST HEREIN WITHOUT SUCH REGISTRATION OR QUALIFICATION MAY BE MADE ONLY IN A
TRANSACTION WHICH DOES NOT REQUIRE SUCH REGISTRATION OR QUALIFICATION AND WHICH
IS IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND
SERVICING AGREEMENT REFERRED TO HEREIN.

NO TRANSFER OF THIS CERTIFICATE OR ANY INTEREST HEREIN MAY BE MADE TO (A) ANY
RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT THAT IS SUBJECT TO
THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA"), OR
SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE "CODE"), OR
ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A MATERIAL EXTENT, SIMILAR TO THE
FOREGOING PROVISIONS OF ERISA OR THE CODE, OR (B) ANY PERSON WHO IS DIRECTLY OR
INDIRECTLY PURCHASING THIS CERTIFICATE OR SUCH INTEREST HEREIN ON BEHALF OF, AS
NAMED FIDUCIARY OF, AS TRUSTEE OF, OR WITH ASSETS OF ANY SUCH RETIREMENT PLAN OR
OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT, EXCEPT IN ACCORDANCE WITH THE
PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING AGREEMENT REFERRED TO
HEREIN.

THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN CREDIT
SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP., WELLS FARGO BANK, N.A., LASALLE
BANK NATIONAL ASSOCIATION, LNR PARTNERS, INC., KEYCORP REAL ESTATE CAPITAL
MARKETS, INC., NCB, FSB, NATIONAL CONSUMER COOPERATIVE BANK, OR ANY OF THEIR
RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE NOR ANY OF THE UNDERLYING
MORTGAGE LOANS IS GUARANTEED BY ANY AGENCY OR INSTRUMENTALITY OF THE UNITED
STATES OR ANY OTHER PERSON. THIS CERTIFICATE IS ENTITLED ONLY TO CERTAIN
ADDITIONAL INTEREST (IF ANY) RECEIVED IN RESPECT OF THE ARD TRUST MORTGAGE
LOANS, SUBJECT TO THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

           This certifies that [_____] is the registered owner of the Percentage
Interest evidenced by this Certificate (as specified above) in that certain
beneficial ownership interest in the Trust Fund evidenced by all the Class V
Certificates. The Trust Fund was created and the Certificates were issued
pursuant to a Pooling and Servicing Agreement, dated as of September 1, 2006
(the "Agreement"), among Credit Suisse First Boston Mortgage Securities Corp.,
as depositor (the "Depositor", which term includes any successor entity under
the Agreement), Keycorp Real Estate Capital Markets, Inc., as master servicer
(in such capacity, the "Master Servicer No. 1", which term includes any
successor entity under the Agreement), NCB, FSB, as master servicer (in such
capacity, the "Master Servicer No. 2", which term includes any successor entity
under the Agreement, and collectively with the Master Servicer No. 1, the
"Master Servicers"), LNR Partners, Inc., as special servicer (in such capacity,
the "Special Servicer No. 1", which term includes any successor entity under the
Agreement), National Consumer Cooperative Bank as special servicer (in such
capacity, the "Special Servicer No. 2", which term includes any successor entity
under the Agreement, and collectively with Special Servicer No. 1, the "Special
Servicers"), Wells Fargo Bank, N.A., as trustee (the "Trustee", which term
includes any successor entity under the Agreement) and LaSalle Bank National
Association (the "Certificate Administrator", which term includes any successor
entity under the Agreement), a summary of certain of the pertinent provisions of
which is set forth hereafter. To the extent not defined herein, capitalized
terms used herein have the respective meanings assigned thereto in the
Agreement. This Certificate is issued under and is subject to the terms,
provisions and conditions of the Agreement, to which Agreement the Holder of
this Certificate by virtue of its acceptance hereof assents and by which such
Holder is bound.

           Pursuant to the terms of the Agreement, beginning on the First
Distribution Date specified above, distributions will be made on that date (the
"Distribution Date") each month that is the fourth Business Day following the
Determination Date in such month, to the Person in whose name this Certificate
is registered at the close of business on the last Business Day of the month
immediately preceding the month of such distribution (the "Record Date"), in an
amount equal to the product of the Percentage Interest evidenced by this
Certificate and the amount required to be distributed to all the Holders of the
Class V Certificates on the applicable Distribution Date pursuant to the
Agreement. All distributions made under the Agreement on this Certificate will
be made by the Certificate Administrator by wire transfer of immediately
available funds to the account of the Person entitled thereto at a bank or other
entity having appropriate facilities therefor, if such Certificateholder shall
have provided the Certificate Administrator with wiring instructions no later
than the related Record Date (which wiring instructions may be in the form of a
standing order applicable to all subsequent distributions), or otherwise by
check mailed to the address of such Certificateholder as it appears in the
Certificate Register. Notwithstanding the foregoing, the final distribution on
this Certificate will be made in like manner, but only upon presentation and
surrender of this Certificate at the offices of the Certificate Registrar or
such other location specified in the notice to the Holder hereof of such final
distribution.

           The Certificates are limited in right of distribution to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Distribution Account, the Collection Account
and, if established, the REO Account or any Mortgage Loan Combination Custodial
Account may be made from time to time for purposes other than, and, in certain
cases, prior to, distributions to Certificateholders, such purposes including
the reimbursement of advances made, or certain expenses incurred, with respect
to the Mortgage Loans and the payment of interest on such advances and expenses.

           This Certificate is issuable in fully registered form only without
coupons. As provided in the Agreement and subject to certain limitations therein
set forth, this Certificate is exchangeable for new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest, as requested by the Holder surrendering the same.

           No transfer, sale, pledge or other disposition of this Certificate or
any interest herein shall be made unless that transfer, sale, pledge or other
disposition is exempt from the registration and/or qualification requirements of
the Securities Act and any applicable state securities laws, or is otherwise
made in accordance with the Securities Act and such state securities laws. If a
transfer of this Certificate is to be made without registration under the
Securities Act, then (except under the limited circumstances specified in the
Agreement) the Certificate Registrar shall refuse to register such transfer
unless it receives (and, upon receipt, may conclusively rely upon) either: (i) a
certificate from the Certificateholder desiring to effect such transfer
substantially in the form attached as Exhibit F-1A to the Agreement; or (ii) a
certificate from the Certificateholder desiring to effect such transfer
substantially in the form attached as Exhibit F-1B to the Agreement and a
certificate from such Certificateholder's prospective Transferee substantially
in the form attached either as Exhibit F-2A or as Exhibit F-2B to the Agreement;
or (iii) an Opinion of Counsel satisfactory to the Trustee to the effect that
such transfer may be made without registration under the Securities Act (which
Opinion of Counsel shall not be an expense of the Trust or of the Depositor, the
Master Servicers, the Special Servicers, the Certificate Administrator, the
Trustee or the Certificate Registrar in their respective capacities as such),
together with the written certification(s) as to the facts surrounding such
transfer from the Certificateholder desiring to effect such transfer and/or such
Certificateholder's prospective Transferee on which such Opinion of Counsel is
based. Any Certificateholder desiring to effect a transfer, sale, pledge or
other disposition of this Certificate or any interest herein shall, and does
hereby agree to, indemnify the Depositor, Credit Suisse Securities (USA) LLC,
the Trustee, the Master Servicers, the Special Servicers and the Certificate
Registrar against any liability that may result if such transfer, sale, pledge
or other disposition is not exempt from the registration and/or qualification
requirements of the Securities Act and any applicable state securities laws or
is not made in accordance with such federal and state laws.

           No transfer of this Certificate or any interest herein shall be made
(A) to any retirement plan or other employee benefit plan or arrangement,
including individual retirement accounts and annuities, Keogh plans and
collective investment funds and separate accounts in which such plans, accounts
or arrangements are invested, including insurance company general accounts, that
is subject to ERISA or Section 4975 of the Code (each, a "Plan"), or (B) to any
Person who is directly or indirectly purchasing this Certificate or any interest
herein on behalf of, as named fiduciary of, as trustee of, or with assets of a
Plan, if the purchase and holding of this Certificate or such interest herein by
the prospective Transferee would result in a violation of Section 406 or 407 of
ERISA or Section 4975 of the Code or would result in the imposition of an excise
tax under Section 4975 of the Code (or, in the case of a governmental plan,
would result in a violation of any federal, state or local law materially
similar to Section 406 or 407 of ERISA or Section 4975 of the Code (a "Similar
Law"). Except in limited circumstances, the Certificate Registrar shall refuse
to register the transfer of this Certificate unless it has received from the
prospective Transferee a certification to the effect that such prospective
Transferee is not a Plan and is not directly or indirectly purchasing this
Certificate on behalf of, as named fiduciary of, as trustee of, or with assets
of a Plan or a governmental plan subject to Similar Law.

           If a Person is acquiring this Certificate as a fiduciary or agent for
one or more accounts, such Person shall be required to deliver to the
Certificate Registrar a certification to the effect that, and such other
evidence as may be reasonably required by the Certificate Administrator to
confirm that, it has (i) sole investment discretion with respect to each such
account and (ii) full power to make the acknowledgments, representations,
warranties, certifications and/or agreements with respect to each such account
described above in this Certificate.

           As provided in the Agreement and subject to certain limitations
therein set forth, the transfer of this Certificate is registrable in the
Certificate Register upon surrender of this Certificate for registration of
transfer at the offices of the Certificate Registrar, duly endorsed by, or
accompanied by a written instrument of transfer in the form satisfactory to the
Certificate Registrar duly executed by, the Holder hereof or his attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

           No service charge will be imposed for any registration of transfer or
exchange of this Certificate, but the Certificate Registrar may require payment
of a sum sufficient to cover any tax or other governmental charge that may be
imposed in connection with any transfer or exchange of this Certificate.

           The Depositor, the Master Servicers, the Special Servicers, the
Trustee, the Certificate Administrator, the Certificate Registrar and any agent
of the Depositor, the Master Servicers, the Special Servicers, the Trustee, the
Certificate Administrator or the Certificate Registrar may treat the Person in
whose name this Certificate is registered as the owner hereof for all purposes,
and none of the Depositor, the Master Servicers, the Special Servicers, the
Trustee, the Certificate Administrator, the Certificate Registrar or any such
agent shall be affected by notice to the contrary.

           Subject to certain terms and conditions set forth in the Agreement,
the Trust Fund and the obligations created by the Agreement shall terminate upon
distribution (or provision for distribution) to the Certificateholders of all
amounts held by or on behalf of the Certificate Administrator and required to be
distributed to them pursuant to the Agreement following the earlier of (i) the
final payment or other liquidation (or any advance with respect thereto) of the
last Mortgage Loan or REO Property remaining in the Trust Fund, (ii) the
purchase by the Master Servicers, the Special Servicers, or any single
Controlling Class Certificateholder or group of Controlling Class
Certificateholders with a majority interest in the Controlling Class, at a price
determined as provided in the Agreement, of all the Certificates for all the
Mortgage Loans and each REO Property remaining in the Trust Fund. The Agreement
permits, but does not require, the Master Servicers, the Special Servicers, or
any single Controlling Class Certificateholder or group of Controlling Class
Certificateholders with a majority interest in the Controlling Class to purchase
from the Trust Fund all the Mortgage Loans and each REO Property remaining
therein. The exercise of such right may effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Pool at the time of purchase being less than
1.0% of the Initial Pool Balance.

           The Agreement permits, with certain exceptions therein provided, the
amendment thereof and the modification of the rights and obligations of the
Depositor, the Master Servicers, the Special Servicers, the Certificate
Administrator and the Trustee and the rights of the Certificateholders under the
Agreement at any time by the Depositor, the Master Servicers, the Special
Servicers, the Certificate Administrator and the Trustee with the consent of the
Holders of Certificates entitled to not less than 51% of the Voting Rights
allocated to all of the Classes materially affected by the amendment (subject to
certain third-party beneficiary consent rights). Any such consent by the Holder
of this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, including any amendment
necessary to maintain the status of the 828-850 Madison Avenue Loan REMIC, the
Lower-Tier REMIC or the Upper -Tier REMIC as a REMIC, without the consent of the
Holders of any of the Certificates.

           Unless the certificate of authentication hereon has been executed by
the Certificate Registrar, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

           The registered Holder hereof, by its acceptance hereof, agrees that
it will look solely to the Trust Fund (to the extent of its rights therein) for
distributions hereunder.

           This Certificate shall be construed in accordance with the laws of
the State of New York applicable to agreements negotiated, made and to be
performed entirely in said State, and the obligations, rights and remedies of
the Holder hereof shall be determined in accordance with such laws.

<PAGE>

           IN WITNESS WHEREOF, the Certificate Administrator has caused this
Certificate to be duly executed.

                               LASALLE BANK NATIONAL ASSOCIATION
                               as Certificate Administrator

                               By:
                                  -----------------------------------------
                                  Authorized Representative

                          CERTIFICATE OF AUTHENTICATION

           This is one of the Class V Certificates referred to in the
within-mentioned Agreement.

Dated: September 28, 2006

                               LASALLE BANK NATIONAL ASSOCIATION
                               as Certificate Registrar

                               By:
                                  -----------------------------------------
                                  Authorized Representative

<PAGE>

                                   ASSIGNMENT

            FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and
transfer(s) unto
________________________________________________________________________________
________________________________________________________________________________
          (please print or typewrite name and address including postal
                              zip code of assignee)

the beneficial ownership interest in the Trust Fund evidenced by the within
Mortgage Pass-Through Certificate and hereby authorize(s) the registration of
transfer of such interest to assignee on the Certificate Register of the Trust
Fund.

           I (we) further direct the Certificate Registrar to issue a new
Mortgage Pass-Through Certificate of a like Percentage Interest and Class to the
above named assignee and deliver such Mortgage Pass-Through Certificate to the
following address: _____________________________________________________________
________________________________________________________________________________

Dated:

                               _________________________________________________
                               Signature by or on behalf of Assignor

                               _________________________________________________
                               Signature Guaranteed

                       DISTRIBUTION INSTRUCTIONS

           The Assignee should include the following for purposes of
distribution:

           Distributions shall, if permitted, be made by wire transfer or
otherwise, in immediately available funds, to __________________________________
________________________for the account of _____________________________________
________________________.

           Distributions made by check (such check to be made payable to
___________________________) and all applicable statements and notices should be
mailed to ______________________________________________________________________
______________________.

            This information is provided by __________________________________,
the Assignee named above, or __________________________________________________,
as its agent.

<PAGE>

                                   EXHIBIT A-5

                          FORM OF CLASS R CERTIFICATES

              CLASS R COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATE,
                                 SERIES 2006-C4

This is one of a series of commercial mortgage pass-through certificates
(collectively, the "Certificates"), issued in multiple classes (each, a
"Class"), which series of Certificates evidences the entire beneficial ownership
interest in a trust fund (the "Trust Fund") consisting primarily of a pool of
multifamily and commercial mortgage loans (the "Mortgage Loans"), such pool
being formed and sold by

              CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.

Closing Date: September 28, 2006     Percentage Interest evidenced by
                                     this Class R Certificate: 100%
First Distribution Date: [October],
2006

Master Servicers:                    Aggregate Stated Principal Balance
KeyCorp Real Estate Capital          of the Mortgage Loans as of the
Markets, Inc.,                       Closing Date ("Initial Pool
NCB, FSB                             Balance"): $4,273,091,953

Special Servicers:                   Trustee:
LNR Partners, Inc.                   Wells Fargo Bank, N.A.
National Consumer Cooperative Bank
                                     Certificate Administrator:
                                     LaSalle Bank National Association

Certificate No. R-___                CUSIP No.: __________________

<PAGE>

THIS CERTIFICATE HAS NOT BEEN REGISTERED OR QUALIFIED UNDER THE SECURITIES ACT
OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR THE SECURITIES LAWS OF ANY STATE.
ANY RESALE, PLEDGE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE OR ANY
INTEREST HEREIN WITHOUT SUCH REGISTRATION OR QUALIFICATION MAY BE MADE ONLY IN A
TRANSACTION WHICH DOES NOT REQUIRE SUCH REGISTRATION OR QUALIFICATION AND WHICH
IS IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND
SERVICING AGREEMENT REFERRED TO HEREIN.

NO TRANSFER OF THIS CERTIFICATE OR ANY INTEREST HEREIN MAY BE MADE TO (A) ANY
RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT THAT IS SUBJECT TO
THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA"), OR
SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE "CODE"), OR
ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A MATERIAL EXTENT, SIMILAR TO THE
FOREGOING PROVISIONS OF ERISA OR THE CODE, OR (B) ANY PERSON WHO IS DIRECTLY OR
INDIRECTLY PURCHASING THIS CERTIFICATE OR SUCH INTEREST HEREIN ON BEHALF OF, AS
NAMED FIDUCIARY OF, AS TRUSTEE OF, OR WITH ASSETS OF ANY SUCH RETIREMENT PLAN OR
OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT, EXCEPT IN ACCORDANCE WITH THE
PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING AGREEMENT REFERRED TO
HEREIN.

THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP., WELLS FARGO BANK,
N.A., LASALLE BANK NATIONAL ASSOCIATION, LNR PARTNERS, INC., KEYCORP
REAL ESTATE CAPITAL MARKETS, INC., NCB, FSB, NATIONAL CONSUMER
COOPERATIVE BANK, OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS
CERTIFICATE NOR ANY OF THE UNDERLYING MORTGAGE LOANS IS GUARANTEED BY
ANY AGENCY OR INSTRUMENTALITY OF THE UNITED STATES OR ANY OTHER PERSON.

THIS CERTIFICATE IS SUBORDINATE TO ONE OR MORE CLASSES OF CERTIFICATES OF THE
SAME SERIES AS AND TO THE EXTENT DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT REFERRED TO HEREIN.

SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE EVIDENCES
OWNERSHIP OF THE SOLE "RESIDUAL INTEREST" IN THREE "REAL ESTATE MORTGAGE
INVESTMENT CONDUITS" (EACH A "REMIC") AS THOSE TERMS ARE DEFINED, RESPECTIVELY,
IN SECTIONS 860G AND 860D OF THE CODE. CONSEQUENTLY, TRANSFER OF THIS
CERTIFICATE IS ALSO SUBJECT TO THE ADDITIONAL TAX RELATED TRANSFER RESTRICTIONS
DESCRIBED HEREIN. IF ANY PERSON BECOMES THE REGISTERED HOLDER OF THIS
CERTIFICATE IN VIOLATION OF SUCH TRANSFER RESTRICTIONS, SUCH REGISTRATION SHALL
BE DEEMED TO BE OF NO LEGAL FORCE OR EFFECT WHATSOEVER AND SUCH PERSON SHALL NOT
BE DEEMED TO BE A CERTIFICATEHOLDER FOR ANY PURPOSE HEREUNDER OR UNDER THE
POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN, INCLUDING, BUT NOT LIMITED
TO, THE RECEIPT OF DISTRIBUTIONS, IF ANY, ON THIS CERTIFICATE.

           This certifies that [_____] is the registered owner of the Percentage
Interest evidenced by this Certificate (as specified above) in that certain
beneficial ownership interest in the Trust Fund evidenced by all the Class R
Certificates. The Trust Fund was created and the Certificates were issued
pursuant to a Pooling and Servicing Agreement, dated as of September 1, 2006
(the "Agreement"), among Credit Suisse First Boston Mortgage Securities Corp.,
as depositor (the "Depositor", which term includes any successor entity under
the Agreement), Keycorp Real Estate Capital Markets, Inc., as master servicer
(in such capacity, the "Master Servicer No. 1", which term includes any
successor entity under the Agreement), NCB, FSB, as master servicer (in such
capacity, the "Master Servicer No. 2", which term includes any successor entity
under the Agreement, and collectively with the Master Servicer No. 1, the
"Master Servicers"), LNR Partners, Inc., as special servicer (in such capacity,
the "Special Servicer No. 1", which term includes any successor entity under the
Agreement), National Consumer Cooperative Bank as special servicer (in such
capacity, the "Special Servicer No. 2", which term includes any successor entity
under the Agreement, and collectively with Special Servicer No. 1 the "Special
Servicers"), Wells Fargo Bank, N.A., as trustee (the "Trustee", which term
includes any successor entity under the Agreement) and LaSalle Bank National
Association (the "Certificate Administrator", which term includes any successor
entity under the Agreement), a summary of certain of the pertinent provisions of
which is set forth hereafter. To the extent not defined herein, capitalized
terms used herein have the respective meanings assigned thereto in the
Agreement. This Certificate is issued under and is subject to the terms,
provisions and conditions of the Agreement, to which Agreement the Holder of
this Certificate by virtue of its acceptance hereof assents and by which such
Holder is bound.

           Pursuant to the terms of the Agreement, beginning on the First
Distribution Date specified above, distributions will be made on that date (the
"Distribution Date") each month that is the fourth Business Day following the
Determination Date in such month, to the Person in whose name this Certificate
is registered at the close of business on the last Business Day of the month
immediately preceding the month of such distribution (the "Record Date"), in an
amount equal to the product of the Percentage Interest evidenced by this
Certificate and the amount required to be distributed to all the Holders of the
Class R Certificates on the applicable Distribution Date pursuant to the
Agreement. All distributions made under the Agreement on this Certificate will
be made by the Certificate Administrator by wire transfer of immediately
available funds to the account of the Person entitled thereto at a bank or other
entity having appropriate facilities therefor, if such Certificateholder shall
have provided the Certificate Administrator with wiring instructions no later
than the related Record Date (which wiring instructions may be in the form of a
standing order applicable to all subsequent distributions), or otherwise by
check mailed to the address of such Certificateholder as it appears in the
Certificate Register. Notwithstanding the foregoing, the final distribution on
this Certificate will be made in like manner, but only upon presentation and
surrender of this Certificate at the offices of the Certificate Registrar or
such other location specified in the notice to the Holder hereof of such final
distribution.

           The Certificates are limited in right of distribution to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Distribution Account, the Collection Account
and, if established, the REO Account or any Mortgage Loan Combination Custodial
Account may be made from time to time for purposes other than, and, in certain
cases, prior to, distributions to Certificateholders, such purposes including
the reimbursement of advances made, or certain expenses incurred, with respect
to the Mortgage Loans and the payment of interest on such advances and expenses.

           This Certificate is issuable in fully registered form only without
coupons. As provided in the Agreement and subject to certain limitations therein
set forth, this Certificate is exchangeable for new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest, as requested by the Holder surrendering the same.

           No transfer, sale, pledge or other disposition of this Certificate or
any interest herein shall be made unless that transfer, sale, pledge or other
disposition is exempt from the registration and/or qualification requirements of
the Securities Act and any applicable state securities laws, or is otherwise
made in accordance with the Securities Act and such state securities laws. If a
transfer of this Certificate is to be made without registration under the
Securities Act, then (except under the limited circumstances specified in the
Agreement) the Certificate Registrar shall refuse to register such transfer
unless it receives (and, upon receipt, may conclusively rely upon) either: (i) a
certificate from the Certificateholder desiring to effect such transfer
substantially in the form attached as Exhibit F-1A to the Agreement; or (ii) a
certificate from the Certificateholder desiring to effect such transfer
substantially in the form attached as Exhibit F-1B to the Agreement and a
certificate from such Certificateholder's prospective Transferee substantially
in the form attached either as Exhibit F-2A or as Exhibit F-2B to the Agreement;
or (iii) an Opinion of Counsel satisfactory to the Trustee to the effect that
such transfer may be made without registration under the Securities Act (which
Opinion of Counsel shall not be an expense of the Trust or of the Depositor, the
Master Servicers, the Special Servicers, the Trustee, the Certificate
Administrator or the Certificate Registrar in their respective capacities as
such), together with the written certification(s) as to the facts surrounding
such transfer from the Certificateholder desiring to effect such transfer and/or
such Certificateholder's prospective Transferee on which such Opinion of Counsel
is based. Any Certificateholder desiring to effect a transfer, sale, pledge or
other disposition of this Certificate or any interest herein shall, and does
hereby agree to, indemnify the Depositor, Credit Suisse Securities (USA) LLC,
the Trustee, the Master Servicers, the Special Servicers, and the Certificate
Registrar against any liability that may result if such transfer, sale, pledge
or other disposition is not exempt from the registration and/or qualification
requirements of the Securities Act and any applicable state securities laws or
is not made in accordance with such federal and state laws.

           No transfer of this Certificate or any interest herein shall be made
(A) to any retirement plan or other employee benefit plan or arrangement,
including individual retirement accounts and annuities, Keogh plans and
collective investment funds and separate accounts in which such plans, accounts
or arrangements are invested, including insurance company general accounts, that
is subject to ERISA or Section 4975 of the Code (each, a "Plan"), or (B) to any
Person who is directly or indirectly purchasing this Certificate or any interest
herein on behalf of, as named fiduciary of, as trustee of, or with assets of a
Plan, if the purchase and holding of this Certificate or such interest herein by
the prospective Transferee would result in a violation of Section 406 or 407 of
ERISA or Section 4975 of the Code or would result in the imposition of an excise
tax under Section 4975 of the Code (or, in the case of a governmental plan,
would result in a violation of any federal, state or local law materially
similar to Section 406 or 407 of ERISA or Section 4975 of the Code (a "Similar
Law"). Except in limited circumstances, the Certificate Registrar shall refuse
to register the transfer of this Certificate unless it has received from the
prospective Transferee a certification to the effect that such prospective
Transferee is not a Plan and is not directly or indirectly purchasing this
Certificate on behalf of, as named fiduciary of, as trustee of, or with assets
of a Plan or a governmental plan subject to Similar Law.

           Each Person who has or who acquires any Ownership Interest in this
Certificate shall be deemed by its acceptance or acquisition of such Ownership
Interest to have agreed to be bound by the provisions of Section 5.02(d) of the
Agreement and, if any purported Transferee shall become a Holder of this
Certificate in violation of the provisions of such Section 5.02(d), to have
irrevocably authorized the Trustee (i) to deliver payments to a Person other
than such Person and (ii) to negotiate the terms of any mandatory disposition,
to execute all instruments of Transfer and to do all other things necessary in
connection with any such disposition. Each Person holding or acquiring any
Ownership Interest in this Certificate must be a Permitted Transferee and shall
promptly notify the Trustee of any change or impending change in its status as a
Permitted Transferee. In connection with any proposed Transfer of any Ownership
Interest in this Certificate, the Certificate Registrar shall require delivery
to it, and shall not register the Transfer of this Certificate until its receipt
of, an affidavit substantially in the form attached as Exhibit H-1 to the
Agreement (a "Transfer Affidavit") from the proposed Transferee, representing
and warranting, among other things, that such Transferee is a Permitted
Transferee, that it is not acquiring its Ownership Interest in this Certificate
as a nominee, trustee or agent for any Person that is not a Permitted
Transferee, that for so long as it retains its Ownership Interest in this
Certificate, it will endeavor to remain a Permitted Transferee, and that it has
reviewed the provisions of Section 5.02(d) of the Agreement and agrees to be
bound by them. Notwithstanding the delivery of a Transfer Affidavit by a
proposed Transferee, if a Responsible Officer of either the Certificate
Registrar or Trustee has actual knowledge that the proposed Transferee is not a
Permitted Transferee, no Transfer of an Ownership Interest in this Certificate
to such proposed Transferee shall be effected. In connection therewith, the
Certificate Registrar shall not register the transfer of an Ownership Interest
in this Certificate to any entity classified as a partnership under the Code
unless at the time of transfer, all of its beneficial owners are United States
Persons.

           Each Person holding or acquiring any Ownership Interest in this
Certificate shall agree (x) to require a Transfer Affidavit from any other
Person to whom such Person attempts to transfer its Ownership Interest herein
and (y) not to transfer its Ownership Interest herein unless it provides to the
Certificate Registrar a certificate substantially in the form attached as
Exhibit H-2 to the Agreement stating that, among other things, it has no actual
knowledge that such other Person is not a Permitted Transferee. Each Person
holding or acquiring an Ownership Interest in this Certificate, by purchasing
such Ownership Interest herein, agrees to give the Certificate Administrator
written notice that it is a "pass-through interest holder" within the meaning of
temporary Treasury regulation Section 1.67-3T(a)(2)(i)(A) immediately upon
acquiring such Ownership Interest, if it is, or is holding such Ownership
Interest on behalf of, a "pass-through interest holder".

           The provisions of Section 5.02(d) of the Agreement may be modified,
added to or eliminated, provided that there shall have been delivered to the
Certificate Administrator the following: (a) written confirmation from each
Rating Agency to the effect that the modification of, addition to or elimination
of such provisions will not result in an Adverse Rating Event with respect to
any Class of Rated Certificates; and (b) an Opinion of Counsel, in form and
substance satisfactory to the Trustee, to the effect that such modification of,
addition to or elimination of such provisions will not cause either REMIC Pool
to cease to qualify as a REMIC or be subject to an entity-level tax caused by
the Transfer of a Class R Certificate to a Person that is not a Permitted
Transferee, or cause a Person other than the prospective Transferee to be
subject to a REMIC-related tax caused by the Transfer of a Class R Certificate
to a Person that is not a Permitted Transferee.

           A "Permitted Transferee" is any Transferee other than a Disqualified
Organization, a Non-United States Tax Person or a foreign permanent
establishment or fixed base (each within the meaning of the applicable income
tax treaty) of a United States Tax Person (as defined below). In addition, if
such Transferee is classified as a partnership under the Code, such Transferee
can only be a Permitted Transferee if, among other things, all of its beneficial
owners are United States Tax Persons and the governing documents of the
Transferee prohibit a transfer of any interest in the Transferee to any
Non-United States Tax Person.

           A "Disqualified Organization" is any of (i) the United States or a
possession thereof, any State or political subdivision thereof or any agency or
instrumentality of any of the foregoing (other than an instrumentality which is
a corporation if all of its activities are subject to tax and, except for
Freddie Mac, a majority of its board of directors is not selected by such
governmental unit), (ii) a foreign government, international organization, or
any agency or instrumentality of any of the foregoing, (iii) any organization
(other than certain farmers' cooperatives described in Section 521 of the Code)
which is exempt from the tax imposed by Chapter 1 of the Code (unless such
organization is subject to the tax imposed by Section 511 of the Code on
unrelated business taxable income), (iv) rural electric and telephone
cooperatives described in Section 1381(a)(2)(C) of the Code and (v) any other
Person so designated by the Master Servicers or the Trustee based upon an
Opinion of Counsel that the holding of an Ownership Interest in a Residual
Certificate by such Person may cause the Trust or any Person having an Ownership
Interest in any Class of Certificates (other than such Person) to incur a
liability for any federal tax imposed under the Code that would not otherwise be
imposed but for the Transfer of an Ownership Interest in a Residual Certificate
to such Person. The terms "United States", "State" and "international
organization" shall have the meanings set forth in Section 7701 of the Code or
successor provisions.

           A "Non-United States Tax Person" is any Person other than a United
States Tax Person. A "United States Tax Person" is a citizen or resident of the
United States, a corporation, partnership (except to the extent provided in
applicable Treasury regulations), or other entity (including any entity treated
as a corporation or partnership for federal income tax purposes) created or
organized in, or under the laws of, the United States, any State or the District
of Columbia, or an estate whose income is includible in gross income for United
States federal income tax purposes regardless of its source, or a trust if a
court within the United States is able to exercise primary supervision over the
administration of the trust and one or more United States Tax Persons have the
authority to control all substantial decisions of the trust, all within the
meaning of Section 7701(a)(30) of the Code (including certain trusts in
existence on August 20, 1996 that are eligible to elect to be treated as United
States Tax Persons).

           If a Person is acquiring this Certificate as a fiduciary or agent for
one or more accounts, such Person shall be required to deliver to the
Certificate Registrar a certification to the effect that, and such other
evidence as may be reasonably required by the Certificate Administrator to
confirm that, it has (i) sole investment discretion with respect to each such
account and (ii) full power to make the acknowledgments, representations,
warranties, certifications and/or agreements with respect to each such account
described above in this Certificate.

           As provided in the Agreement and subject to certain limitations
therein set forth, the transfer of this Certificate is registrable in the
Certificate Register upon surrender of this Certificate for registration of
transfer at the offices of the Certificate Registrar, duly endorsed by, or
accompanied by a written instrument of transfer in the form satisfactory to the
Certificate Registrar duly executed by, the Holder hereof or his attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

           No service charge will be imposed for any registration of transfer or
exchange of this Certificate, but the Certificate Registrar may require payment
of a sum sufficient to cover any tax or other governmental charge that may be
imposed in connection with any transfer or exchange of this Certificate.

           The Depositor, the Master Servicers, the Special Servicers, the
Trustee, the Certificate Administrator, the Certificate Registrar and any agent
of the Depositor, the Master Servicers, the Special Servicers, the Trustee, the
Certificate Administrator or the Certificate Registrar may treat the Person in
whose name this Certificate is registered as the owner hereof for all purposes,
and none of the Depositor, the Master Servicers, the Special Servicers, the
Trustee, the Certificate Administrator, the Certificate Registrar or any such
agent shall be affected by notice to the contrary.

           Subject to certain terms and conditions set forth in the Agreement,
the Trust Fund and the obligations created by the Agreement shall terminate upon
distribution (or provision for distribution) to the Certificateholders of all
amounts held by or on behalf of the Certificate Administrator and required to be
distributed to them pursuant to the Agreement following the earlier of (i) the
final payment or other liquidation (or any advance with respect thereto) of the
last Mortgage Loan or REO Property remaining in the Trust Fund, (ii) the
purchase by the Master Servicers, the Special Servicers, or any single
Controlling Class Certificateholder or group of Controlling Class
Certificateholders with a majority interest in the Controlling Class, at a price
determined as provided in the Agreement, of all the Mortgage Loans and each REO
Property remaining in the Trust Fund. The Agreement permits, but does not
require, the Master Servicers, the Special Servicers, or any single Controlling
Class Certificateholder or group of Controlling Class Certificateholders with a
majority interest in the Controlling Class to purchase from the Trust Fund all
the Mortgage Loans and each REO Property remaining therein. The exercise of such
right will effect early retirement of the Certificates; however, such right to
purchase is subject to the aggregate Stated Principal Balance of the Mortgage
Pool at the time of purchase being less than 1.0% of the Initial Pool Balance.

           The Agreement permits, with certain exceptions therein provided, the
amendment thereof and the modification of the rights and obligations of the
Depositor, the Master Servicers, the Special Servicers, the Certificate
Administrator and the Trustee and the rights of the Certificateholders under the
Agreement at any time by the Depositor, the Master Servicers, the Special
Servicers, the Certificate Administrator and the Trustee with the consent of the
Holders of Certificates entitled to not less than 51% of the Voting Rights
allocated to all of the Classes materially affected by the amendment (subject to
certain third-party beneficiary consent rights). Any such consent by the Holder
of this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, including any amendment
necessary to maintain the status of the 828-850 Madison Avenue Loan REMIC, the
Lower-Tier REMIC or the Upper -Tier REMIC as a REMIC, without the consent of the
Holders of any of the Certificates.

           Unless the certificate of authentication hereon has been executed by
the Certificate Registrar, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

           The registered Holder hereof, by its acceptance hereof, agrees that
it will look solely to the Trust Fund (to the extent of its rights therein) for
distributions hereunder.

           This Certificate shall be construed in accordance with the laws of
the State of New York applicable to agreements negotiated, made and to be
performed entirely in said State, and the obligations, rights and remedies of
the Holder hereof shall be determined in accordance with such laws.

<PAGE>

           IN WITNESS WHEREOF, the Certificate Administrator has caused this
Certificate to be duly executed.

                               LASALLE BANK NATIONAL ASSOCIATION
                               as Certificate Administrator

                               By:
                                  -------------------------------------
                                  Authorized Representative

                          CERTIFICATE OF AUTHENTICATION

           This is one of the Class R Certificates referred to in the
within-mentioned Agreement.

Dated: September 28, 2006

                               LASALLE BANK NATIONAL ASSOCIATION
                               as Certificate Registrar

                               By:
                                  -------------------------------------
                                  Authorized Representative

<PAGE>

                                   ASSIGNMENT

            FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and
transfer(s) unto
________________________________________________________________________________
________________________________________________________________________________
          (please print or typewrite name and address including postal
                              zip code of assignee)

the beneficial ownership interest in the Trust Fund evidenced by the within
Mortgage Pass-Through Certificate and hereby authorize(s) the registration of
transfer of such interest to assignee on the Certificate Register of the Trust
Fund.

           I (we) further direct the Certificate Registrar to issue a new
Mortgage Pass-Through Certificate of a like Percentage Interest and Class to the
above named assignee and deliver such Mortgage Pass-Through Certificate to the
following address: _____________________________________________________________
________________________________________________________________________________

Dated:

                               _________________________________________________
                               Signature by or on behalf of Assignor

                               _________________________________________________
                               Signature Guaranteed

                       DISTRIBUTION INSTRUCTIONS

           The Assignee should include the following for purposes of
distribution:

           Distributions shall, if permitted, be made by wire transfer or
otherwise, in immediately available funds, to __________________________________
________________________for the account of _____________________________________
________________________.

           Distributions made by check (such check to be made payable to
___________________________) and all applicable statements and notices should be
mailed to ______________________________________________________________________
______________________.

            This information is provided by __________________________________,
the Assignee named above, or __________________________________________________,
as its agent.

<PAGE>

                                    EXHIBIT B

                             MORTGAGE LOAN SCHEDULE

                                  See Attached

INFORMATION CONTAINED ON THIS DISKETTE DATED, Thursday, September 21, 2006, IS
SUBJECT TO COMPLETION OR AMENDMENT.

This diskette relates to the Offered Certificates in the Credit Suisse First
Boston Mortgage Securities Corp., Commercial Mortgage Pass-Through Certificates,
Series 2006-C4. The information contained on this diskette is provided to
facilitate your review of the collateral underlying the Offered Certificates.
This free writing prospectus is being provided to you in response to your
specific request. The depositor has filed a registration statement (including a
prospectus) with the SEC for the offering to which this communication relates.
Before you invest, you should read the prospectus in the registration statement
and other documents the depositor has filed with the SEC for more complete
information about the depositor, the issuing trust and this offering. You may
get these documents for free by visiting EDGAR on the SEC Web site at
www.sec.gov. Alternatively, the depositor, any underwriter or any dealer
participating in the offering will arrange to send you the prospectus after
filing if you request it by calling toll free 1-800-221-1037 or by email to the
following address: barry.polen@credit-suisse.com. The information on this
diskette supersedes any and all information contained in any previously
furnished free writing prospectus and shall be superseded by any subsequently
furnished similar materials. The commercial mortgage backed securities to which
these materials relate, and the mortgage pool backing them, are subject to
modification or revision (including the possibility that one or more classes of
securities may be split, combined or eliminated at any time prior to issuance or
availability of a final prospectus) and are offered on a "when, as and if
issued" basis. You understand that, when you are considering the purchase of
these securities, a contract of sale will come into being no sooner than the
date on which the relevant class hs been priced and we have verified the
allocation of securities to be made to you; any "indications of interest"
expressed by you, and any "soft circles" generated by us, will not create
binding contractual obligations for you or us.

Prospective investors are advised to read carefully, the free writing prospectus
and prospectus relating to the Offered Certificates in making their investment
decisions.

Credit Suisse First Boston Mortgage Securities Corp.
Commercial Mortgage Pass-Through Certificates Series 2006-C4

<TABLE>
<CAPTION>

      Loan
      Group
#     #       Property Name
---   -----   ----------------------------------------------------
<S>   <C>     <C>
  1       1   11 Madison Avenue
  2       1   280 Park Avenue
  3       2   Babcock & Brown FX 3
3a        2   Babcock & Brown FX 3 - Sonterra
3b        2   Babcock & Brown FX 3 - Sandridge
3c        2   Babcock & Brown FX 3 - Majestic Heights
3d        2   Babcock & Brown FX 3 - Toscana Villas
3e        2   Babcock & Brown FX 3 - Remington Oaks
3f        2   Babcock & Brown FX 3 - Holly Tree
3g        2   Babcock & Brown FX 3 - Holly Ridge
3h        2   Babcock & Brown FX 3 - Pecan Crossing
3i        2   Babcock & Brown FX 3 - Broadmoor
3j        2   Babcock & Brown FX 3 - Preston Valley
3k        2   Babcock & Brown FX 3 - San Marin
3l        2   Babcock & Brown FX 3 - Chesapeake
3m        2   Babcock & Brown FX 3 - River Road Terrace
3n        2   Babcock & Brown FX 3 - Ravenwood
  4       1   The Ritz-Carlton South Beach
  5       1   Carlton Hotel on Madison
  6       1   The Dream Hotel
 12       1   Harwood Center
 15       1   828-850 Madison Avenue
 16       1   Maxtor Campus
 17       2   Delaware Multifamily Portfolio
17a       2   Towne Court
17b       2   Park Place Apartments
17c       2   Water View Court
 18       2   The Cottages of Fall Creek
 19       2   The Orchard Apartments
 20       2   Briarwood Apartments
 22       2   Iowa State Student Housing

 23       1   105 West Adams Street
 25       2   Babcock & Brown FX 5
25a       2   Babcock & Brown FX 5 - Hampton Court
25b       2   Babcock & Brown FX 5 - Memorial Club
 31       1   Novant - Midtown Medical Plaza
 33       1   E.ON US Center
 36       1   Parc at Piedmont
 38       1   500 Sansome Office
 39       1   City Club Hotel
 40       1   Northland Inn
 42       1   Novant - Presbyterian Medical Tower
 43       1   The Plaza Evergreen Park
 44       1   LakeShore Medical
 50       1   Spectra - POOL 4
50a       1   Spectra Retail - Petal, MS
50b       1   Spectra Retail - Pineville, LA
50c       1   Spectra Retail - Fort Dodge, IA
50d       1   Spectra Retail - Marshalltown, IA
50e       1   Spectra Retail - La Junta, CO
50f       1   Spectra Retail - Newcastle, OK
 52       1   833 Jackson & 322 Green
 57       1   Regional Professional Building
 58       1   Novant - Huntersville/Physicians Plaza
 59       1   Pavilions Shopping Center
 60       1   Magnolia Shoppes
 61       1   Princess Medical Center
 62       1   Parkshore Centre
 64       2   Sahara Glen Apartments
 65       2   Villages at Del Rio Apartments
 67       1   Novant - Metroview Professional Building
 68       1   Novant - Matthews Medical Office Building
 70       1   Antelope Valley Plaza
 71       1   New City Plaza
 72       1   Fashion Mall Commons
 73       1   CMC Hotel Portfolio I
73a       1   CMC Hotel Portfolio I - Holiday Inn Raleigh
73b       1   CMC Hotel Portfolio I - Best Western Raleigh
 78       2   Rand Grove Village Apartments
 79       1   Mill Valley Office Complex
 83       1   Ringling Square
 84       1   Holiday Inn & Suites Cary
 86       1   Holiday Inn Express & Suites Fort Lauderdale Airport
 88       1   Intermountain Residence Inn Boise
 91       1   City Center Professional
 92       1   Airways Plaza
101       1   Metro Park Executive Center
103       1   Village at Novato
104       2   296 Austin Road
106       1   Brea Industrial
111       2   Village Plaza Apartments
113       1   Alhambra Shops
116       2   Alexis Park Apartments
117       1   Camelot Professional Building
118       1   Intermountain Residence Inn Spokane
120       1   Plaza West Shopping Center
127       1   White Sands Mall
130       1   Ashton Place
131       1   Holiday Inn Express Frisco
132       1   Valley Del Rio Shopping Center
134       1   Starbucks Center
136       1   UG Buena Park Center
138       1   Ateret Avot
139       1   Rancho Pines Shopping Center
141       1   Mission Industrial Park
144       1   Baymont Inn & Suites - Hot Springs
148       1   Nu-Kote Distribution
149       2   Admiral Manor
151       2   Park Village Apartments
156       1   Shoppes on Saxon
160       1   Valley Center of Trussville
163       2   Lark Ellen Villas
165       1   Shrub Oak Center
166       1   Thunderbird Plaza
170       2   Park at Presa
172       1   Hampton Inn Brevard
173       1   Crowley Plaza
175       2   Sylmar Mobile Home Park
177       1   Barrett Lake MHP
183       1   Lakes Office Building
185       1   1776 Woodstead Court
186       1   The Burley Inn Hotel & Convention Center
187       1   Pak-It Inn Self Storage
187a      1   Pak-It Inn Self Storage - Mableton
187b      1   Pak-It Inn Self Storage - Conyers
188       2   Ocean Drive Apartments
189       1   Culvers Strip Center
191       2   La Acienda Gardens Apartments
193       1   St. Joe Center
195       1   MacGregor Square
197       1   Chase Street Self Storage
199       1   Robinson Medical Center
200       2   Cornish Home Brewery Apartments
201       2   Mariner's Village Apartments
204       2   Windsor Park Apartments
206       1   Thorpe, North and Western Office
208       1   Spectrum Campus One Retail
209       1   Jurupa Business Park
210       2   Ridgecrest MHP
214       1   Carrier Crossing Shopping Center
217       1   Arundel Mills Chipotle Center
219       1   Quality Inn & Suites Des Moines
220       1   Placid Corners
221       1   Georgetown Shopping Center
222       1   Sandy Plains Connection
223       1   Arundel Mills Mens Wearhouse Center
226       2   Nordic Villa Apartments
230       1   Sansone Plaza
231       1   Pak-It Inn (Lilburn)
232       2   Camelot Apartments Kenosha
234       2   Regency Square Apartments
237       1   West Haven Center
238       1   Marcin Retail
240       2   380-384 Prospect Place
245       1   Hennessey Building
248       2   12 Peachtree Avenue
250       1   First Colony Center
253       1   Zeppe's Plaza
254       2   Alexander Hamilton Plaza Apts
255       1   Oakridge Shopping Center
256       1   Edwards Buildings
256a      1   1130 Kildaire Farm Road
256b      1   5509 Creedmoor Road
258       1   Oaktree Plaza Shopping Center
260       1   Highwood Retail
262       1   2246-2260 Marietta Boulevard
264       1   700 Market Street
265       1   Airport Kirkwood Shopping Center
267       2   Woodhurst Apartments
268       1   Overland Park Center
271       1   Clayton's Self Storage
272       1   Harrison Retail Center
276       2   15-45 Elam St
277       1   Cherryway Medical Center
281       1   Desoto Clocktower
282       1   Rite Aid Lansing
284       2   Whitehall Apartments
288       1   Richfield Commons
289       1   Illinois Pointe Shoppes
290       1   Palm Terrace Mobile Home Park
292       1   Plainfield Retail Center
294       2   McAdams Apartments
299       1   Copperas Cove Shopping Center
303       1   Bay Storage
304       2   Eliana Apartments
310       2   Rivercrest Village
312       2   Ellicott Shores Apartments

314       1   Centerpoint West Shopping Center
315       1   Aransas Pass Retail
318       2   Riverbend Estates Mobile Home Park
319       1   Shoppes at Jefferson Place
323       1   Sycamore Place Shopping Center
324       1   Alverser Commons
325       1   Attic Storage
328       2   Kenwood Apartments

329       2   Fairmount Hills Apartments
331       2   Rock Garden Apartments
335       2   Sunset Mobile Home Park
336       2   Applewood MHP
338       2   Dewey Avenue Apartments
340       1   Levin Center
342       1   Recker Brown Pad
344       2   Villa Denese Mobile Home Park
346       2   Swiss Garden Townhomes
348       1   Angels Attic Self Storage
349       1   Colma Mixed Use
350       1   Clovis Shopping Center
357       1   3300 West Illinois

<CAPTION>

                                                                                                                 Zip
#     Address                                                 City                 County                State   Code
---   -----------------------------------------------------   ------------------   -------------------   -----   -----
<S>   <C>                                                     <C>                  <C>                   <C>     <C>
  1   11 Madison Avenue                                       New York             New York              NY      10010
  2   280 Park Avenue                                         New York             New York              NY      10017
  3
3a    5050 Tamarus Street                                     Las Vegas            Clark                 NV      89119
3b    4025 Burke Road                                         Pasadena             Harris                TX      77504
3c    5325 East Tropicana Avenue                              Las Vegas            Clark                 NV      89122
3d    4775 Topaz Street                                       Las Vegas            Clark                 NV      89121
3e    1601 Weyland Drive                                      Fort Worth           Tarrant               TX      76180
3f    2481 Lake Drive                                         Waldorf              Charles               MD      20601
3g    2504 Ivy Brook Court                                    Arlington            Tarrant               TX      76006
3h    1225 East Pleasant Run Road                             DeSoto               Dallas                TX      75115
3i    10215 Beechnut Street                                   Houston              Harris                TX      77072
3j    5631 Spring Valley Road                                 Dallas               Dallas                TX      75254
3k    3501 West Waters Avenue                                 Tampa                Hillsborough          FL      33614
3l    11620 Audelia Road                                      Dallas               Dallas                TX      75243
3m    20900 River Terrace Road                                Ettrick              Chesterfield          VA      23803
3n    4215 Bethel Church Road                                 Columbia             Richland              SC      29206
  4   1 Lincoln Road                                          Miami Beach          Miami-Dade            FL      33139
  5   88 Madison Avenue                                       New York             New York              NY      10016
  6   210 West 55th Street                                    New York             New York              NY      10019
 12   1999 Bryan Street                                       Dallas               Dallas                TX      75201
 15   828-850 Madison Avenue                                  New York             New York              NY      10021
 16   2452 Clover Basin Drive                                 Longmont             Boulder               CO      80503
 17
17a   91 Thorne Lane                                          Newark               New Castle            DE      19711
17b   650 Lehigh Road                                         Newark               New Castle            DE      19711
17c   321 Harbor Drive                                        Claymont             New Castle            DE      19703
 18   6802 East 56th Street                                   Indianapolis         Marion                IN      46226
 19   5350 Cider Mill Lane                                    Indianapolis         Marion                IN      46226
 20   1300 East Fort Lowell Road                              Tucson               Pima                  AZ      85719
 22   119-324 Stanton Avenue, 116-324 Welch Avenue,           Ames                 Story                 IA      50014
      304 Lynn Avenue and 2323-2337 Knapp Street
 23   105 West Adams Street                                   Chicago              Cook                  IL      60603
 25
25a   441 North Armistead Street                              Alexandria           Alexandria City       VA      22312
25b   904 Westcott Street                                     Houston              Harris                TX      77007
 31   1918 Randolph Road                                      Charlotte            Mecklenburg           NC      28207
 33   220 West Main Street                                    Louisville           Jefferson             KY      40202
 36   999 Hood Road Northeast                                 Marietta             Cobb                  GA      30068
 38   500 Sansome Street                                      San Francisco        San Francisco         CA      94111
 39   55 West 44th Street                                     New York             New York              NY      10036
 40   7025 Northland Drive                                    Brooklyn Park        Hennepin              MN      55428
 42   1718 East 4th Street                                    Charlotte            Mecklenburg           NC      28204
 43   9600 South Western Avenue                               Evergreen Park       Cook                  IL      60805
 44   3232-3299 Wellness Drive                                Holland              Ottawa                MI      49424
 50
50a   793 US Highway 42                                       Petal                Forrest               MS      39465
50b   3628 Monroe Highway                                     Pineville            Rapides               LA      71360
50c   3003-3043 1st Avenue South                              Fort Dodge           Webster               IA      50501
50d   50 La Frentz Drive                                      Marshalltown         Marshall              IA      50158
50e   7 Conley Road                                           La Junta             Otero                 CO      81050
50f   707-757 Northwest 34th Place                            Newcastle            McClain               OK      73065
 52   833 West Jackson Boulevard and 322 South Green Street   Chicago              Cook                  IL      60607
 57   2501 Jimmy Johnson Boulevard                            Port Arthur          Jefferson             TX      77640
 58   10030 Gilead Road                                       Huntersville         Mecklenburg           NC      28078
 59   1955 West Guadalupe Road                                Mesa                 Maricopa              AZ      85202
 60   9651 Westview Drive                                     Coral Springs        Broward               FL      33076
 61   8573-8575 East Princess Drive                           Scottsdale           Maricopa              AZ      85255
 62   1 Poston Road                                           Charleston           Charleston            SC      29407
 64   3655 East Sahara Avenue                                 Las Vegas            Clark                 NV      89104
 65   3560 Dixie Drive                                        Houston              Harris County         TX      77021
 67   1900 Randolph Road                                      Charlotte            Mecklenburg           NC      28207
 68   1450 Matthews Township Parkway                          Matthews             Mecklenburg           NC      28105
 70   2000-2062 East Avenue J                                 Lancaster            Los Angeles           CA      93536
 71   66 North Main Street                                    New City             Rockland              NY      10956
 72   8487 Union Chapel Road                                  Indianapolis         Marion                IN      46240
 73
73a   2805 Highwoods Boulevard                                Raleigh              Wake                  NC      27604
73b   2715 Capital Boulevard                                  Raleigh              Wake                  NC      27604
 78   708-774 East Rand Grove Lane                            Palatine             Cook                  IL      60074
 79   2055, 2035 and 2060 Reading Road                        Cincinnati           Hamilton              OH      45202
 83   1626 Ringling Boulevard                                 Sarasota             Sarasota              FL      34236
 84   5630 Dillard Drive                                      Cary                 Wake                  NC      27518
 86   1150 West State Road 84                                 Fort Lauderdale      Broward               FL      33315
 88   7303 West Denton Street                                 Boise                Ada                   ID      83704
 91   15700 37th Avenue North                                 Plymouth             Hennepin              MN      55445
 92   1281-1283 Murfreesboro Road                             Nashville            Davidson              TN      37217
101   4415 Metro Parkway                                      Fort Myers           Lee                   FL      33916
103   7514 Redwood Boulevard                                  Novato               Marin                 CA      94945
104   296 Austin Road                                         Waterbury            New Haven             CT      06705
106   31055 Huntwood Avenue                                   Hayward              Alameda               CA      94544
111   33 Village Parkway                                      Circle Pines         Anoka                 MN      55014
113   1127, 1129 and 1131 South Fremont Avenue                Alhambra             Los Angeles           CA      91803
116   2201 Loreco Street                                      Bossier City         Bossier               LA      71112
117   1800 Camelot Drive                                      Virginia Beach       Virginia Beach City   VA      23454
118   15915 East Indiana Avenue                               Spokane Valley       Spokane               WA      99216
120   5563 Western Boulevard                                  Raleigh              Wake                  NC      27606
127   3199 White Sands Boulevard                              Alamogordo           Otero                 NM      88310
130   190 Ashton Court                                        Clifton Springs      Ontario               NY      14432
131   4220 Preston Road                                       Frisco               Collin                TX      75034
132   4232-4262 Camino Del Rio North                          San Diego            San Diego             CA      92108
134   3699 Hamner Avenue                                      Norco                Riverside             CA      92860
136   7550, 7560 and 7570 Orangethorpe Avenue                 Buena Park           Orange                CA      90621
138   1410 East 10th Street                                   Brooklyn             Kings                 NY      11230
139   4570, 4588 and 4590 North Rancho Drive                  Las Vegas            Clark                 NV      89130
141   4747-4751 State Street & 4748-4762 Mission Boulevard    Ontario              San Bernardino        CA      91762
144   5321 Central Avenue                                     Hot Springs          Garland               AR      71913
148   200 Beasley Drive                                       Franklin             Williamson            TN      37064
149   115, 129, 145 Bloomington Avenue                        Bremerton            Kitsap                WA      98312
151   10033 Juniper Avenue                                    Fontana              San Bernardino        CA      92335
156   1169 Saxon Boulevard                                    Orange City          Volusia               FL      32763
160   1930 Edwards Lake Road                                  Trussville           Jefferson             AL      35235
163   1313 West San Bernardino Road                           Covina               Los Angeles           CA      91722
165   1390-1426 East Main Street                              Shrub Oak            Westchester           NY      10588
166   13760 North 93rd Avenue                                 Peoria               Maricopa              AZ      85381
170   2233 Southeast Military Drive                           San Antonio          Bexar                 TX      78223
172   800 Forest Gate Center                                  Pisgah Forest        Transylvania          NC      28768
173   753 Odd Fellow Road                                     Crowley              Acadia                LA      70526
175   12365 County Road 2                                     Brighton             Weld                  CO      80603
177   1250 Barrett Lake Road                                  Dulzura              San Diego             CA      91917
183   10559 Citation Drive                                    Brighton             Livingston            MI      48116
185   1776 Woodstead Court                                    The Woodlands        Montgomery            TX      77380
186   800 North Overland Avenue                               Burley               Cassia                ID      83318
187
187a  6780 Mableton Parkway                                   Mableton             Cobb                  GA      30126
187b  2609 Old Covington Highway                              Conyers              Rockdale              GA      30012
188   4443 Ocean Drive                                        Corpus Christi       Nueces                TX      78412
189   3705 North 124th Street                                 Brookfield           Waukesha              WI      53005
191   1212 Glen Garden Drive                                  Fort Worth           Tarrant               TX      76104
193   4982-4996 Palm Coast Parkway Northwest                  Palm Coast           Flagler               FL      32137
195   1831 Lake Pine Drive                                    Cary                 Wake                  NC      27511
197   1150 Chase Street                                       Athens               Clarke                GA      30601
199   133 Church Hill Road                                    Robinson             Allegheny             PA      15136
200   1201 West Clay Street                                   Richmond             Richmond City         VA      23220
201   3202 South Orlando Drive                                Sanford              Seminole              FL      32773
204   7900 Creekbend Drive                                    Houston              Harris                TX      77071
206   8180 South 700 East Street                              Sandy                Salt Lake             UT      84070
208   1776-1782 North High Street                             Columbus             Franklin              OH      43215
209   7101 Jurupa Avenue                                      Riverside            Riverside             CA      92504
210   26125 South Highway 27                                  Leesburg             Lake                  FL      34748
214   817 West Pioneer Parkway                                Grand Prairie        Dallas                TX      75051
217   7049 Arundel Mills Boulevard                            Hanover              Anne Arundel          MD      21076
219   4995 Merle Hay Road                                     Des Moines           Polk                  IA      50322
220   300-310 East Warm Springs Road                          Las Vegas            Clark                 NV      89119
221   6505-6533 East State Boulevard                          Fort Wayne           Allen                 IN      46815
222   700 Sandy Plains Road                                   Marietta             Cobb                  GA      30066
223   7069 Arundel Mills Boulevard                            Hanover              Anne Arundel          MD      21076
226   3120 Willow Knolls Road                                 Peoria               Peoria                IL      61614
230   319-323 Route 22 East                                   Green Brook          Somerset              NJ      08812
231   4400 Lawrenceville Highway                              Lilburn              Gwinnett              GA      30047
232   1468 16th Avenue                                        Kenosha              Kenosha               WI      53140
234   400 Ivy Avenue                                          Waco                 McLennan              TX      76706
237   3935 Western Avenue                                     Knoxville            Knox                  TN      37921
238   4915 FM 2920 Road                                       Spring               Harris                TX      77388
240   380-384 Prospect Place                                  Brooklyn             Kings                 NY      11238
245   100 West Foothill Boulevard                             Azusa                Los Angeles           CA      91702
248   12-14 Peachtree Avenue                                  Atlanta              Fulton                GA      30305
250   1930 State Highway 6 South                              Sugar Land           Fort Bend             TX      77478
253   25780 Miles Road                                        Bedford Heights      Cuyahoga              OH      44146
254   494, 496 and 498 South Hamilton Road                    Columbus             Frankilin             OH      43213
255   3315 Belt Line Road                                     Garland              Dallas                TX      75044
256
256a  1130 Kildaire Farm Road                                 Cary                 Wake                  NC      27511
256b  5509 Creedmoor Road                                     Raleigh              Wake                  NC      27612
258   5929-5947 Jimmy Carter Boulevard                        Norcross             Gwinnett              GA      30071
260   256 Green Bay Road                                      Highwood             Lake                  IL      60040
262   2246-2260 Marietta Boulevard                            Atlanta              Fulton                GA      30318
264   700-716 Market Street and 310 Kildaire Road             Chapel Hill          Orange                NC      27516
265   11611 West Airport                                      Stafford             Fort Bend             TX      77477
267   4042 Curtice Road                                       Northwood            Wood                  OH      43619
268   7101 West 91st Street                                   Overland Park        Johnson               KS      66212
271   900 South Egg Harbor Road                               Hammonton Township   Atlantic              NJ      08037
272   4780 Harrison Boulevard                                 Ogden                Weber                 UT      84403
276   15-45 Elam Street                                       New Britain          Hartford              CT      06053
277   1326 Cherry Way                                         Gahanna              Franklin              OH      43230
281   1615-1619 North Hampton Road                            Desoto               Dallas                TX      75115
282   3825 West Jolly Road                                    Lansing              Ingham                MI      48911
284   3930 Southwest Twilight Drive                           Topeka               Shawnee               KS      66614
288   4174 Wheatley Road                                      Richfield            Summit                OH      44286
289   4832 Illinois Road                                      Fort Wayne           Allen                 IN      46804
290   2711 Mar Vista Drive                                    Aptos                Santa Cruz            CA      95003
292   13544 Route 30                                          Plainfield           Will                  IL      60544
294   1520 East 17th Street                                   Wichita              Sedgwick              KS      67214
299   301 Constitution Avenue                                 Copperas Cove        Coryell               TX      76522
303   22529 Parsons Circle                                    Cape Charles         Northampton           VA      23310
304   6709-6749 South 73rd Circle                             Ralston              Douglas               NE      68127
310   1204 County House Lane                                  Marietta             Washington            OH      45750
312   75, 115, 171, 231, 232, 255, 256 and                    Celoron              Chautauqua            NY      14720
      283 Marine Park Drive
314   2636 Frankford Road                                     Dallas               Denton                TX      75287
315   2650 Demory Lane                                        Aransas Pass         San Patricio          TX      78336
318   4402 Riverbend Drive                                    San Angelo           Tom Green             TX      76903
319   640 East Broadway Boulevard                             Jefferson City       Jefferson             TN      37760
323   4177 Montgomery Highway                                 Dothan               Houston               AL      36303
324   1264, 1266 and 1282 Alverser Plaza                      Midlothian           Chesterfield          VA      23113
325   15611 South Helmer Road                                 Battle Creek         Calhoun               MI      49015
328   500 and 619 East Armour Boulevard and                   Kansas City          Jackson               MO      64109
      3421 and 3425 Locust Street
329   32 Lakeview Drive                                       Lakewood             Chautauqua            NY      14750
331   95 Rock Garden Place                                    Dahlonega            Lumpkin               GA      30533
335   2305 Metzgar Road Southwest                             Albuquerque          Bernalillo            NM      87105
336   5 Pebbleridge Drive                                     Medina               Orleans               NY      14103
338   1126 Dewey Avenue                                       Rochester            Monroe                NY      14613
340   3424 Chandler Creek Road                                Virginia Beach       Virginia Beach City   VA      23453
342   6059 East Brown Road                                    Mesa                 Maricopa              AZ      85205
344   4511 Lucksinger Lane                                    Austin               Travis                TX      78745
346   179-183 Clinton Road                                    New Hartford         Oneida                NY      13413
348   5802 Joiner Road                                        San Antonio          Bexar                 TX      78238
349   1-11 San Pedro Road                                     Colma                San Mateo             CA      94014
350   3900 North Prince Street                                Clovis               Curry                 NM      88101
357   3300 West Illinois Avenue                               Midland              Midland               TX      79703

<CAPTION>
                     Units/
                     Sq. Ft./                                  Orig            Rem.            Orig           Rem.
      Property       Rooms/      Original       Cut-off        Amort.          Amort.          Term to        Term to
#     Type           Pads        Balance        Balance (1)    Term            Term (1)        Maturity (2)   Maturity (1) (2)
---   ------------   ---------   ------------   ------------   -------------   -------------   ------------   ----------------
<S>   <C>            <C>         <C>            <C>            <C>             <C>             <C>            <C>
  1   Office         2,236,139   $806,000,000   $806,000,000   Interest Only   Interest Only            120                120
  2   Office         1,206,807   $300,000,000   $300,000,000             360             360            120                117
  3                              $195,095,563   $195,095,563             364             364            120                112
3a    Multifamily          350    $27,884,247    $27,884,247
3b    Multifamily          504    $23,034,510    $23,034,510
3c    Multifamily          240    $21,709,798    $21,709,798
3d    Multifamily          270    $21,688,429    $21,688,429
3e    Multifamily          580    $18,388,860    $18,388,860
3f    Multifamily          144    $14,603,155    $14,603,155
3g    Multifamily          290    $11,679,078    $11,679,078
3h    Multifamily          236    $10,555,186    $10,555,186
3i    Multifamily          235    $10,270,160    $10,270,160
3j    Multifamily          310     $9,847,439     $9,847,439
3k    Multifamily          193     $9,645,316     $9,645,316
3l    Multifamily          127     $5,828,682     $5,828,682
3m    Multifamily          128     $5,200,925     $5,200,925
3n    Multifamily          112     $4,759,778     $4,759,778
  4   Hotel                376   $181,000,000   $181,000,000   Interest Only   Interest Only            120                118
  5   Hotel                316   $100,000,000   $100,000,000             360             360            120                120
  6   Hotel                220   $100,000,000   $100,000,000             360             360            120                117
 12   Office           731,716    $81,000,000    $81,000,000             360             360            120                117
 15   Retail            17,317    $60,000,000    $60,000,000   Interest Only   Interest Only            156                141
 16   Office           450,090    $48,750,000    $48,750,000             360             360            120                118
 17                               $47,000,000    $47,000,000   Interest Only   Interest Only             60                 58
17a   Multifamily          428    $25,401,830    $25,401,830
17b   Multifamily          275    $14,983,110    $14,983,110
17c   Multifamily          120     $6,615,060     $6,615,060
 18   Multifamily          770    $28,150,000    $28,150,000             360             360            120                117
 19   Multifamily          378    $11,300,000    $11,300,000             360             360            120                117
 20   Multifamily          196     $7,050,000     $7,050,000             360             360            120                117
 22   Multifamily          397    $43,000,000    $43,000,000             360             360            121                120

 23   Office           455,813    $42,350,000    $42,350,000             360             360             60                 57
 25                               $39,874,381    $39,874,381             360             360            117                112
25a   Multifamily          308    $22,807,110    $22,807,110
25b   Multifamily          356    $17,067,271    $17,067,271
 31   Office           219,173    $33,155,250    $33,155,250             360             360            118                117
 33   Office           287,990    $32,000,000    $32,000,000             360             360            120                118
 36   Multifamily          161    $25,000,000    $25,000,000             360             360            120                112
 38   Office           145,769    $24,400,000    $24,400,000   Interest Only   Interest Only            120                119
 39   Hotel                 65    $23,400,000    $23,316,259             300             297             60                 57
 40   Hotel                231    $22,000,000    $21,897,697             300             296            120                116
 42   Office           140,341    $21,257,095    $21,257,095             360             360            118                117
 43   Retail           808,965    $20,200,000    $20,200,000             324             324            120                115
 44   Office           120,382    $19,360,000    $19,360,000             360             360            118                111
 50                               $18,119,496    $18,119,496             360             360            120                114
50a   Retail            30,180     $3,814,694     $3,814,694
50b   Retail            32,200     $3,760,000     $3,760,000
50c   Retail            33,700     $3,720,000     $3,720,000
50d   Retail            22,900     $2,929,390     $2,929,390
50e   Retail            20,500     $2,294,390     $2,294,390
50f   Retail            11,600     $1,601,022     $1,601,022
 52   Office           151,716    $17,748,000    $17,748,000             360             360            120                118
 57   Office           120,775    $16,400,000    $16,400,000             360             360            120                118
 58   Office           101,525    $16,024,164    $16,024,164             360             360            118                117
 59   Retail           127,621    $16,000,000    $16,000,000             360             360            120                118
 60   Retail           114,118    $15,094,000    $15,055,231             360             357            121                118
 61   Office            69,448    $14,800,000    $14,800,000             360             360            121                118
 62   Office           116,371    $14,501,000    $14,501,000             360             360            121                118
 64   Multifamily          268    $14,100,000    $14,100,000             360             360            120                118
 65   Multifamily          288    $13,650,000    $13,628,664             360             358            120                118
 67   Office            87,092    $13,577,550    $13,577,550             360             360            118                117
 68   Office            97,205    $13,564,177    $13,564,177             360             360            118                117
 70   Retail           126,295    $13,200,000    $13,200,000             360             360            120                118
 71   Retail           122,061    $13,000,000    $13,000,000   Interest Only   Interest Only            120                119
 72   Retail            58,277    $12,375,000    $12,375,000             360             360            120                118
 73                               $11,800,000    $11,773,389             300             298            120                118
73a   Hotel                128     $8,350,000     $8,331,170
73b   Hotel                139     $3,450,000     $3,442,220
 78   Multifamily          212    $10,650,000    $10,650,000             360             360            121                119
 79   Office           106,821    $10,300,000    $10,300,000             360             360            121                118
 83   Office            38,420     $9,850,000     $9,834,976             360             358            119                117
 84   Hotel                120     $9,300,000     $9,279,027             300             298            120                118
 86   Hotel                100     $8,500,000     $8,468,486             300             297            120                117
 88   Hotel                104     $8,120,000     $8,114,026             360             359            120                119
 91   Office            48,703     $7,800,000     $7,800,000             360             360            121                118
 92   Office           147,598     $7,750,000     $7,750,000             360             360            120                118
101   Office            56,243     $6,950,000     $6,950,000             360             360            122                119
103   Retail            20,043     $6,635,000     $6,635,000             360             360            120                119
104   Multifamily          104     $6,600,000     $6,592,126             300             299            120                119
106   Industrial       128,580     $6,450,000     $6,450,000             360             360            121                119
111   Multifamily           50     $6,226,000     $6,226,000             360             360            120                119
113   Retail            17,838     $6,158,000     $6,158,000             360             360            120                117
116   Multifamily          280     $6,000,000     $5,973,034             360             355            121                116
117   Office            40,725     $5,925,000     $5,915,988             360             358            121                119
118   Hotel                 84     $5,760,000     $5,755,762             360             359            120                119
120   Retail            62,558     $5,500,000     $5,500,000             360             360            120                118
127   Retail           266,566     $5,000,000     $5,000,000             360             360            120                117
130   Mixed Use             77     $5,000,000     $4,990,401             360             357            120                117
131   Hotel                 61     $5,000,000     $4,988,654             300             298            120                118
132   Retail            37,411     $5,000,000     $4,988,028             360             357            120                117
134   Retail            16,017     $4,983,000     $4,967,313             360             356            120                116
136   Retail            11,292     $4,860,000     $4,860,000             360             360            120                119
138   Multifamily           43     $4,770,000     $4,760,491             300             298            120                118
139   Retail            19,500     $4,635,000     $4,635,000             360             360            120                114
141   Industrial       100,595     $4,500,000     $4,493,434             360             358            120                118
144   Hotel                 88     $4,425,000     $4,414,730             300             298            120                118
148   Industrial       152,562     $4,370,000     $4,370,000             360             360            120                120
149   Multifamily          117     $4,283,000     $4,269,618             360             356            120                116
151   Multifamily           56     $4,127,000     $4,116,119             360             357            121                118
156   Retail            12,800     $4,000,000     $4,000,000             360             360            120                117
160   Retail            31,344     $4,000,000     $3,989,824             360             357            121                118
163   Multifamily           23     $3,900,000     $3,900,000             360             360            120                116
165   Retail            18,885     $3,904,000     $3,894,744             360             357            120                117
166   Office            25,778     $3,886,000     $3,880,202             360             358            120                118
170   Multifamily          210     $3,850,000     $3,840,599             360             357            120                117
172   Hotel                 80     $3,800,000     $3,795,647             300             299            120                119
173   Retail            27,228     $3,781,000     $3,781,000             360             360            120                118
175   Multifamily          101     $3,800,000     $3,770,238             360             352            120                112
177   Multifamily           86     $3,700,000     $3,700,000             360             360            120                114
183   Office            44,332     $3,600,000     $3,588,951             360             356            120                116
185   Office            39,139     $3,500,000     $3,494,588             360             358            120                118
186   Hotel                126     $3,500,000     $3,486,855             300             297            120                117
187                                $3,475,000     $3,457,890             300             296            120                116
187a  Self Storage      58,575     $2,600,000     $2,587,198
187b  Self Storage      33,975       $875,000       $870,692
188   Multifamily           99     $3,450,000     $3,450,000             360             360            120                120
189   Retail            14,500     $3,450,000     $3,441,160             360             357            120                117
191   Multifamily          154     $3,400,000     $3,388,467             360             356            121                117
193   Retail            32,400     $3,340,000     $3,327,200             300             297            121                118
195   Retail            15,569     $3,205,000     $3,205,000             360             360            115                114
197   Self Storage      61,057     $3,150,000     $3,145,404             360             358            120                118
199   Office            21,791     $3,125,000     $3,125,000             360             360            121                119
200   Multifamily           37     $3,100,000     $3,097,826             360             359            121                120
201   Multifamily           88     $3,075,000     $3,067,492             360             357            122                119
204   Multifamily          130     $3,000,000     $3,000,000             360             360            120                117
206   Office            35,032     $3,000,000     $2,989,749             360             356            121                117
208   Retail            12,900     $2,950,000     $2,950,000             360             360            120                117
209   Industrial        51,014     $2,934,000     $2,929,635             360             358            120                118
210   Multifamily          153     $2,900,000     $2,900,000             360             360            122                119
214   Retail            43,351     $2,798,000     $2,794,242             360             358            120                118
217   Retail             7,000     $2,780,000     $2,776,112             360             358            120                118
219   Hotel                117     $2,750,000     $2,735,415             300             296            120                116
220   Retail            18,250     $2,724,000     $2,724,000             360             360            119                118
221   Retail            29,220     $2,727,000     $2,717,348             240             238            240                238
222   Retail            51,538     $2,670,000     $2,646,147             360             351            120                111
223   Retail            10,000     $2,625,000     $2,621,329             360             358            120                118
226   Multifamily           92     $2,590,000     $2,590,000             360             360            120                117
230   Retail            32,110     $2,550,000     $2,548,207             360             359            120                119
231   Self Storage      65,890     $2,525,000     $2,523,163             360             359            120                119
232   Multifamily          112     $2,500,000     $2,500,000             360             360            120                118
234   Multifamily           77     $2,500,000     $2,488,944             360             355            120                115
237   Retail            53,059     $2,450,000     $2,446,574             360             358            120                118
238   Retail            19,960     $2,420,000     $2,416,538             360             358            120                118
240   Multifamily           24     $2,400,000     $2,396,498             360             358            121                119
245   Retail             9,363     $2,300,000     $2,296,606             360             358            120                118
248   Multifamily           18     $2,205,000     $2,201,431             360             358            120                118
250   Retail             7,932     $2,199,000     $2,199,000             360             360            120                117
253   Mixed Use         21,047     $2,200,000     $2,194,694             300             298            121                119
254   Multifamily          162     $2,200,000     $2,194,536             360             357            120                117
255   Retail            29,126     $2,200,000     $2,192,969             360             356            120                116
256                                $2,185,000     $2,181,918             360             358            120                118
256a  Office            17,422     $1,185,000     $1,183,329
256b  Office            10,631     $1,000,000       $998,589
258   Retail            16,999     $2,182,000     $2,176,877             360             357            120                117
260   Retail            11,992     $2,170,000     $2,166,913             360             358            120                118
262   Industrial        50,684     $2,127,000     $2,124,177             360             358            120                118
264   Retail            16,684     $2,100,000     $2,098,416             360             359            120                119
265   Retail            13,129     $2,100,000     $2,094,696             360             357            121                118
267   Multifamily           38     $2,050,000     $2,050,000             360             360            120                118
268   Retail             7,500     $2,020,000     $2,020,000             360             360            120                118
271   Self Storage      50,400     $2,000,000     $1,989,523             360             354            120                114
272   Retail            10,479     $1,950,000     $1,943,288             360             356            121                117
276   Multifamily           56     $1,831,000     $1,828,534             360             358            120                118
277   Office            14,398     $1,760,000     $1,760,000             360             360            118                118
281   Retail            38,127     $1,750,000     $1,742,956             360             355            120                115
282   Retail            11,180     $1,729,000     $1,726,698             360             358            120                118
284   Multifamily           74     $1,700,000     $1,700,000             360             360            122                119
288   Retail            15,964     $1,700,000     $1,694,539             360             356            121                117
289   Retail            12,141     $1,700,000     $1,682,523             240             235            239                234
290   Multifamily           48     $1,660,000     $1,658,789             360             359            120                119
292   Retail             7,970     $1,635,000     $1,635,000             360             360            121                118
294   Multifamily           66     $1,620,000     $1,617,837             360             358            120                118
299   Retail            15,600     $1,600,000     $1,597,619             360             358            120                118
303   Self Storage      44,357     $1,525,000     $1,523,912             360             359            120                119
304   Multifamily           54     $1,504,000     $1,504,000             360             360            122                112
310   Multifamily           69     $1,400,000     $1,396,842             360             357            121                118
312   Multifamily           49     $1,400,000     $1,394,021             360             355            120                115

314   Retail            13,136     $1,350,000     $1,345,685             360             356            120                116
315   Retail            13,472     $1,340,000     $1,340,000             360             360            120                118
318   Multifamily          160     $1,296,000     $1,290,658             360             355            120                115
319   Retail            10,560     $1,280,000     $1,278,037             360             358            121                119
323   Retail            12,000     $1,250,000     $1,247,058             360             357            120                117
324   Retail             5,200     $1,235,000     $1,234,109             360             359            120                119
325   Self Storage      40,150     $1,200,000     $1,198,454             360             358            121                119
328   Multifamily           94     $1,200,000     $1,197,127             360             357            120                117

329   Multifamily           48     $1,173,000     $1,167,991             360             355            120                115
331   Multifamily           40     $1,100,000     $1,097,308             360             357            120                117
335   Multifamily           46     $1,000,000       $995,020             300             296            121                117
336   Multifamily           94       $950,000       $949,326             360             359            120                119
338   Multifamily           37       $915,000       $911,300             360             355            120                115
340   Industrial        10,400       $880,000       $879,392             360             359            120                119
342   Retail             3,275       $824,000       $821,366             360             356            122                118
344   Multifamily           56       $800,000       $799,474             360             359            120                119
346   Multifamily           16       $750,000       $749,492             360             359            120                119
348   Self Storage      39,480       $750,000       $748,509             360             357            120                117
349   Mixed Use          8,800       $750,000       $747,915             360             356            120                116
350   Retail             7,200       $750,000       $747,194             300             297            120                117
357   Retail             4,343       $400,000       $399,068             360             357            120                117

<CAPTION>

                            Net                                                       First
      Interest              Interest            Interest Calculation    Monthly       Payment       Maturity
#     Rate                  Rate                (30/360 / Actual/360)   Payment (3)   Date          Date         ARD (4)
---   ------------------    ----------------    ---------------------   -----------   -----------   ----------   -------
<S>   <C>                   <C>                 <C>                     <C>           <C>           <C>          <C>
  1                5.770%              5.749%   Actual/360               $3,929,343   10/11/2006    9/11/2016    N/A
  2   6.7541946022727300%              6.734%   Actual/360               $2,835,389   7/11/2006     6/11/2016    N/A
  3          5.559927773%        5.539327773%   Actual/360               $1,110,856   2/11/2006     1/11/2016    N/A
3a
3b
3c
3d
3e
3f
3g
3h
3i
3j
3k
3l
3m
3n
  4               6.3725%              6.352%   Actual/360                 $974,535   8/11/2006     7/11/2016    N/A
  5                6.345%              6.324%   Actual/360                 $621,909   10/11/2006    9/11/2016    N/A
  6                6.642%              6.621%   Actual/360                 $641,435   7/11/2006     6/11/2016    N/A
 12            6.2440620%          6.2234620%   Actual/360                 $498,418   7/11/2006     6/11/2016    N/A
 15                4.966%              4.945%   Actual/360                 $251,749   7/11/2005     6/11/2018    N/A
 16                6.426%              6.405%   Actual/360                 $305,765   8/11/2006     7/11/2016    N/A
 17     7.23341489361702%   7.21281489361702%   Actual/360                 $287,244   8/11/2006     7/11/2011    N/A
17a
17b
17c
 18                6.685%              6.644%   Actual/360                 $181,366   7/11/2006     6/11/2016    N/A
 19                6.685%              6.644%   Actual/360                  $72,804   7/11/2006     6/11/2016    N/A
 20                6.685%              6.644%   Actual/360                  $45,422   7/11/2006     6/11/2016    N/A
 22                6.330%              6.299%   Actual/360                 $267,000   9/11/2006     9/11/2016    N/A

 23                6.570%              6.549%   Actual/360                 $269,633   7/11/2006     6/11/2011    N/A
 25                5.980%              5.959%   Actual/360                 $238,555   5/11/2006     1/11/2016    N/A
25a
25b
 31                6.260%              6.239%   Actual/360                 $204,358   9/11/2006     6/11/2016    N/A
 33                6.140%              6.119%   Actual/360                 $194,746   8/11/2006     7/11/2016    N/A
 36                6.080%              6.059%   Actual/360                 $151,176   2/11/2006     1/11/2016    N/A
 38             6.259835%              6.239%   Actual/360                 $129,051   9/11/2006     8/11/2016    N/A
 39                6.630%              6.609%   Actual/360                 $159,905   7/11/2006     6/11/2011    N/A
 40                6.710%              6.689%   Actual/360                 $151,445   6/11/2006     5/11/2016    N/A
 42                6.260%              6.239%   Actual/360                 $131,022   9/11/2006     6/11/2016    N/A
 43                5.940%              5.919%   Actual/360                 $125,289   5/11/2006     4/11/2016    N/A
 44                5.410%              5.389%   Actual/360                 $108,833   3/11/2006     12/11/2015   N/A
 50                5.860%              5.779%   Actual/360                 $107,010   4/11/2006     3/11/2016    N/A
50a
50b
50c
50d
50e
50f
 52                6.180%              6.159%   Actual/360                 $108,471   8/11/2006     7/11/2016    N/A
 57                6.320%              6.269%   Actual/360                 $101,725   8/11/2006     7/11/2016    N/A
 58                6.260%              6.239%   Actual/360                  $98,768   9/11/2006     6/11/2016    N/A
 59                6.340%              6.319%   Actual/360                  $99,453   8/11/2006     7/11/2016    N/A
 60                6.160%              6.139%   Actual/360                  $92,055   7/11/2006     7/11/2016    N/A
 61                6.200%              6.139%   Actual/360                  $90,645   7/11/2006     7/11/2016    N/A
 62                6.340%              6.319%   Actual/360                  $90,136   7/11/2006     7/11/2016    N/A
 64                5.960%              5.939%   Actual/360                  $84,174   8/11/2006     7/11/2016    N/A
 65                6.230%              6.209%   Actual/360                  $83,868   8/11/2006     7/11/2016    N/A
 67                6.260%              6.239%   Actual/360                  $83,688   9/11/2006     6/11/2016    N/A
 68                6.260%              6.239%   Actual/360                  $83,605   9/11/2006     6/11/2016    N/A
 70                6.020%              5.999%   Actual/360                  $79,310   8/11/2006     7/11/2016    N/A
 71                6.010%              5.989%   Actual/360                  $66,013   9/11/2006     8/11/2016    N/A
 72                6.140%              6.119%   Actual/360                  $75,312   8/11/2006     7/11/2016    N/A
 73                6.630%              6.609%   Actual/360                  $80,636   8/11/2006     7/11/2016    N/A
73a
73b
 78                6.180%              6.159%   Actual/360                  $65,090   8/11/2006     8/11/2016    N/A
 79                6.240%              6.179%   Actual/360                  $63,352   7/11/2006     7/11/2016    N/A
 83                6.320%              6.299%   Actual/360                  $61,097   8/11/2006     6/11/2016    N/A
 84                6.630%              6.609%   Actual/360                  $63,552   8/11/2006     7/11/2016    N/A
 86                6.440%              6.419%   Actual/360                  $57,074   7/11/2006     6/11/2016    N/A
 88                6.440%              6.419%   Actual/360                  $51,004   9/11/2006     8/11/2016    N/A
 91                6.350%              6.289%   Actual/360                  $48,534   7/11/2006     7/11/2016    N/A
 92                6.450%              6.349%   Actual/360                  $48,731   8/11/2006     7/11/2016    N/A
101                6.200%              6.159%   Actual/360                  $42,567   7/11/2006     8/11/2016    N/A
103                6.020%              5.959%   Actual/360                  $39,866   9/11/2006     8/11/2016    N/A
104                6.340%              6.319%   Actual/360                  $43,906   9/11/2006     8/11/2016    N/A
106                6.280%              6.169%   Actual/360                  $39,840   8/11/2006     8/11/2016    N/A
111                5.980%              5.959%   Actual/360                  $37,248   9/11/2006     8/11/2016    N/A
113                6.310%              6.289%   Actual/360                  $38,156   7/11/2006     6/11/2016    N/A
116                6.030%              6.009%   Actual/360                  $36,089   5/11/2006     5/11/2016    N/A
117                6.330%              6.309%   Actual/360                  $36,790   8/11/2006     8/11/2016    N/A
118                6.440%              6.419%   Actual/360                  $36,180   9/11/2006     8/11/2016    N/A
120                6.100%              6.079%   Actual/360                  $33,330   8/11/2006     7/11/2016    N/A
127                6.530%              6.509%   Actual/360                  $31,702   7/11/2006     6/11/2016    N/A
130                7.310%              7.289%   Actual/360                  $34,313   7/11/2006     6/11/2016    N/A
131                6.600%              6.579%   Actual/360                  $34,073   8/11/2006     7/11/2016    N/A
132                6.450%              6.429%   Actual/360                  $31,439   7/11/2006     6/11/2016    N/A
134                6.440%              6.419%   Actual/360                  $31,300   6/11/2006     5/11/2016    N/A
136                6.415%              6.394%   Actual/360                  $30,447   9/11/2006     8/11/2016    N/A
138                7.210%              7.189%   Actual/360                  $34,355   8/11/2006     7/11/2016    N/A
139                5.960%              5.939%   Actual/360                  $27,670   4/11/2006     3/11/2016    N/A
141                6.480%              6.459%   Actual/360                  $28,384   8/11/2006     7/11/2016    N/A
144                6.490%              6.469%   Actual/360                  $29,850   8/11/2006     7/11/2016    N/A
148                6.325%              6.284%   Actual/360                  $27,120   10/11/2006    9/11/2016    N/A
149                6.470%              6.449%   Actual/360                  $26,987   6/11/2006     5/11/2016    N/A
151                6.050%              6.029%   Actual/360                  $24,876   7/11/2006     7/11/2016    N/A
156                6.130%              6.069%   Actual/360                  $24,317   7/11/2006     6/11/2016    N/A
160                6.200%              6.179%   Actual/360                  $24,499   7/11/2006     7/11/2016    N/A
163                6.130%              6.109%   Actual/360                  $23,709   6/11/2006     5/11/2016    N/A
165                6.490%              6.419%   Actual/360                  $24,650   7/11/2006     6/11/2016    N/A
166                6.400%              6.379%   Actual/360                  $24,307   8/11/2006     7/11/2016    N/A
170                6.370%              6.349%   Actual/360                  $24,006   7/11/2006     6/11/2016    N/A
172                6.540%              6.519%   Actual/360                  $25,753   9/11/2006     8/11/2016    N/A
173                6.280%              6.259%   Actual/360                  $23,354   8/11/2006     7/11/2016    N/A
175                5.860%              5.839%   Actual/360                  $22,442   2/11/2006     1/11/2016    N/A
177                5.820%              5.709%   Actual/360                  $21,757   4/11/2006     3/11/2016    N/A
183                6.540%              6.519%   Actual/360                  $22,849   6/11/2006     5/11/2016    N/A
185                6.270%              6.249%   Actual/360                  $21,596   8/11/2006     7/11/2016    N/A
186                6.370%              6.349%   Actual/360                  $23,349   7/11/2006     6/11/2016    N/A
187                6.410%              6.299%   Actual/360                  $23,268   6/11/2006     5/11/2016    N/A
187a
187b
188                6.100%              6.079%   Actual/360                  $20,907   10/11/2006    9/11/2016    N/A
189                6.170%              6.149%   Actual/360                  $21,063   7/11/2006     6/11/2016    N/A
191                6.140%              6.119%   Actual/360                  $20,692   6/11/2006     6/11/2016    N/A
193                6.260%              6.239%   Actual/360                  $22,054   7/11/2006     7/11/2016    N/A
195                5.800%              5.739%   Actual/360                  $18,805   9/11/2006     3/11/2016    N/A
197                6.480%              6.459%   Actual/360                  $19,869   8/11/2006     7/11/2016    N/A
199                6.230%              6.159%   Actual/360                  $19,201   8/11/2006     8/11/2016    N/A
200                6.610%              6.589%   Actual/360                  $19,819   9/11/2006     9/11/2016    N/A
201                6.370%              6.349%   Actual/360                  $19,174   7/11/2006     8/11/2016    N/A
204                6.240%              6.219%   Actual/360                  $18,452   7/11/2006     6/11/2016    N/A
206                6.110%              6.089%   Actual/360                  $18,199   6/11/2006     6/11/2016    N/A
208                6.000%              5.979%   Actual/360                  $17,687   7/11/2006     6/11/2016    N/A
209                6.410%              6.389%   Actual/360                  $18,372   8/11/2006     7/11/2016    N/A
210                6.400%              6.379%   Actual/360                  $18,140   7/11/2006     8/11/2016    N/A
214                6.770%              6.749%   Actual/360                  $18,185   8/11/2006     7/11/2016    N/A
217                6.630%              6.609%   Actual/360                  $17,810   8/11/2006     7/11/2016    N/A
219                6.010%              5.989%   Actual/360                  $17,735   6/11/2006     5/11/2016    N/A
220                6.360%              6.339%   Actual/360                  $16,968   9/11/2006     7/11/2016    N/A
221                6.850%              6.829%   Actual/360                  $20,898   8/11/2006     7/11/2026    N/A
222                5.750%              5.729%   Actual/360                  $15,581   1/11/2006     12/11/2015   N/A
223                6.630%              6.609%   Actual/360                  $16,817   8/11/2006     7/11/2016    N/A
226                6.570%              6.549%   Actual/360                  $16,490   7/11/2006     6/11/2016    N/A
230                6.600%              6.579%   Actual/360                  $16,286   9/11/2006     8/11/2016    N/A
231                6.480%              6.369%   Actual/360                  $15,927   9/11/2006     8/11/2016    N/A
232                6.270%              6.249%   Actual/360                  $15,425   8/11/2006     7/11/2016    N/A
234                6.100%              6.079%   Actual/360                  $15,150   5/11/2006     4/11/2016    N/A
237                6.630%              6.609%   Actual/360                  $15,696   8/11/2006     7/11/2016    N/A
238                6.550%              6.529%   Actual/360                  $15,376   8/11/2006     7/11/2016    N/A
240                6.480%              6.459%   Actual/360                  $15,138   8/11/2006     8/11/2016    N/A
245                6.440%              6.369%   Actual/360                  $14,447   8/11/2006     7/11/2016    N/A
248                6.100%              6.079%   Actual/360                  $13,362   8/11/2006     7/11/2016    N/A
250                6.420%              6.399%   Actual/360                  $13,784   7/11/2006     6/11/2016    N/A
253                6.300%              6.229%   Actual/360                  $14,581   8/11/2006     8/11/2016    N/A
254                6.300%              6.279%   Actual/360                  $13,617   7/11/2006     6/11/2016    N/A
255                6.380%              6.359%   Actual/360                  $13,732   6/11/2006     5/11/2016    N/A
256                6.600%              6.579%   Actual/360                  $13,955   8/11/2006     7/11/2016    N/A
256a
256b
258                6.530%              6.469%   Actual/360                  $13,835   7/11/2006     6/11/2016    N/A
260                6.570%              6.549%   Actual/360                  $13,816   8/11/2006     7/11/2016    N/A
262                6.810%              6.789%   Actual/360                  $13,881   8/11/2006     7/11/2016    N/A
264                6.350%              6.329%   Actual/360                  $13,067   9/11/2006     8/11/2016    N/A
265                6.230%              6.209%   Actual/360                  $12,903   7/11/2006     7/11/2016    N/A
267                6.330%              6.309%   Actual/360                  $12,729   8/11/2006     7/11/2016    N/A
268                6.580%              6.559%   Actual/360                  $12,874   8/11/2006     7/11/2016    N/A
271                6.110%              6.089%   Actual/360                  $12,133   4/11/2006     3/11/2016    N/A
272                6.080%              6.059%   Actual/360                  $11,792   6/11/2006     6/11/2016    N/A
276                6.760%              6.739%   Actual/360                  $11,888   8/11/2006     7/11/2016    N/A
277                6.390%              6.369%   Actual/360                  $10,997   10/11/2006    7/11/2016    N/A
281                6.500%              6.479%   Actual/360                  $11,061   5/11/2006     4/11/2016    N/A
282                6.800%              6.779%   Actual/360                  $11,272   8/11/2006     7/11/2016    N/A
284                6.330%              6.309%   Actual/360                  $10,556   7/11/2006     8/11/2016    N/A
288                6.360%              6.339%   Actual/360                  $10,589   6/11/2006     6/11/2016    N/A
289                6.110%              6.089%   Actual/360                  $12,287   5/11/2006     3/11/2026    N/A
290                6.470%              6.449%   Actual/360                  $10,460   9/11/2006     8/11/2016    N/A
292                6.380%              6.359%   Actual/360                  $10,206   7/11/2006     7/11/2016    N/A
294                6.790%              6.769%   Actual/360                  $10,550   8/11/2006     7/11/2016    N/A
299                6.410%              6.389%   Actual/360                  $10,019   8/11/2006     7/11/2016    N/A
303                6.550%              6.529%   Actual/360                   $9,689   9/11/2006     8/11/2016    N/A
304                5.830%              5.769%   Actual/360                   $8,854   12/11/2005    1/11/2016    N/A
310                6.690%              6.669%   Actual/360                   $9,025   7/11/2006     7/11/2016    N/A
312                6.250%              6.139%   Actual/360                   $8,620   5/11/2006     4/11/2016    N/A

314                6.380%              6.359%   Actual/360                   $8,427   6/11/2006     5/11/2016    N/A
315                6.540%              6.519%   Actual/360                   $8,505   8/11/2006     7/11/2016    N/A
318                6.400%              6.379%   Actual/360                   $8,107   5/11/2006     4/11/2016    N/A
319                6.300%              6.279%   Actual/360                   $7,923   8/11/2006     8/11/2016    N/A
323                6.520%              6.409%   Actual/360                   $7,917   7/11/2006     6/11/2016    N/A
324                6.510%              6.489%   Actual/360                   $7,814   9/11/2006     8/11/2016    N/A
325                6.910%              6.889%   Actual/360                   $7,911   8/11/2006     8/11/2016    N/A
328                6.450%              6.429%   Actual/360                   $7,545   7/11/2006     6/11/2016    N/A

329                6.250%              6.139%   Actual/360                   $7,222   5/11/2006     4/11/2016    N/A
331                6.360%              6.339%   Actual/360                   $6,852   7/11/2006     6/11/2016    N/A
335                6.350%              6.329%   Actual/360                   $6,659   6/11/2006     6/11/2016    N/A
336                6.570%              6.549%   Actual/360                   $6,048   9/11/2006     8/11/2016    N/A
338                6.480%              6.459%   Actual/360                   $5,771   5/11/2006     4/11/2016    N/A
340                6.660%              6.639%   Actual/360                   $5,655   9/11/2006     8/11/2016    N/A
342                6.380%              6.359%   Actual/360                   $5,143   6/11/2006     7/11/2016    N/A
344                6.830%              6.809%   Actual/360                   $5,231   9/11/2006     8/11/2016    N/A
346                6.730%              6.709%   Actual/360                   $4,855   9/11/2006     8/11/2016    N/A
348                7.180%              7.159%   Actual/360                   $5,081   7/11/2006     6/11/2016    N/A
349                6.920%              6.899%   Actual/360                   $4,950   6/11/2006     5/11/2016    N/A
350                6.390%              6.369%   Actual/360                   $5,013   7/11/2006     6/11/2016    N/A
357                6.560%              6.539%   Actual/360                   $2,544   7/11/2006     6/11/2016    N/A

<CAPTION>
                                                                                           Servicing
                                                                                           and
                               Letter of      Ground   Earthquake        Environmental     Trustee
#     Lockout/Defeasance (5)   Credit         Lease    Insurance (Y/N)   Insurance (Y/N)   Fees
---   ----------------------   ------------   ------   ---------------   ---------------   ---------
<S>   <C>                      <C>            <C>      <C>               <C>               <C>
  1   Yes                                $0   N/A      Yes               N/A                0.020600%
  2   Yes                      $115,000,000   N/A      Yes               N/A                0.020600%
  3   Yes                                $0                                                 0.020600%
3a                                            N/A      Yes               N/A
3b                                            N/A      Yes               N/A
3c                                            N/A      Yes               N/A
3d                                            N/A      Yes               N/A
3e                                            N/A      Yes               N/A
3f                                            N/A      Yes               N/A
3g                                            N/A      Yes               N/A
3h                                            N/A      Yes               N/A
3i                                            N/A      Yes               N/A
3j                                            N/A      Yes               N/A
3k                                            N/A      Yes               N/A
3l                                            N/A      Yes               N/A
3m                                            N/A      Yes               N/A
3n                                            N/A      Yes               N/A
  4   Yes                                $0   Yes      Yes               N/A                0.020600%
  5   Yes                                $0   N/A      Yes               N/A                0.020600%
  6   No                                 $0   Yes      Yes               N/A                0.020600%
 12   Yes                                $0   Yes      N/A               N/A                0.020600%
 15   Yes                                $0   N/A      Yes               N/A                0.020600%
 16   Yes                                $0   N/A      Yes               N/A                0.020600%
 17   No                                 $0                                                 0.020600%
17a                                           N/A      N/A               N/A
17b                                           N/A      N/A               N/A
17c                                           N/A      N/A               N/A
 18   Yes                                $0   N/A      N/A               N/A                0.040600%
 19   Yes                                $0   N/A      N/A               N/A                0.040600%
 20   Yes                                $0   N/A      N/A               N/A                0.040600%
 22   Yes                                $0   N/A      N/A               N/A                0.030600%

 23   Yes                                $0   N/A      N/A               N/A                0.020600%
 25   Yes                                $0                                                 0.020600%
25a                                           N/A      Yes               N/A
25b                                           N/A      Yes               N/A
 31   Yes                                $0   Yes      N/A               N/A                0.020600%
 33   Yes                                $0   N/A      Yes               N/A                0.020600%
 36   Yes                                $0   N/A      N/A               N/A                0.020600%
 38   Yes                                $0   N/A      Yes               N/A                0.020600%
 39   Yes                                $0   N/A      Yes               N/A                0.020600%
 40   Yes                                $0   N/A      N/A               N/A                0.020600%
 42   Yes                                $0   Yes      N/A               N/A                0.020600%
 43   Yes                                $0   N/A      N/A               N/A                0.020600%
 44   Yes                        $2,440,000   N/A      N/A               N/A                0.020600%
 50   Yes                                $0                                                 0.080600%
50a                                           N/A      Yes               N/A
50b                                           N/A      Yes               N/A
50c                                           N/A      Yes               N/A
50d                                           N/A      Yes               N/A
50e                                           N/A      Yes               N/A
50f                                           N/A      Yes               N/A
 52   Yes                                $0   N/A      N/A               N/A                0.020600%
 57   Yes                                $0   N/A      N/A               N/A                0.050600%
 58   Yes                                $0   Yes      N/A               N/A                0.020600%
 59   Yes                                $0   N/A      N/A               N/A                0.020600%
 60   Yes                                $0   N/A      N/A               N/A                0.020600%
 61   Yes                                $0   N/A      N/A               N/A                0.060600%
 62   Yes                                $0   N/A      N/A               N/A                0.020600%
 64   Yes                                $0   N/A      N/A               N/A                0.020600%
 65   Yes                                $0   N/A      Yes               N/A                0.020600%
 67   Yes                                $0   Yes      N/A               N/A                0.020600%
 68   Yes                                $0   Yes      N/A               N/A                0.020600%
 70   Yes                                $0   N/A      N/A               N/A                0.020600%
 71   Yes                                $0   N/A      Yes               N/A                0.020600%
 72   Yes                                $0   N/A      Yes               N/A                0.020600%
 73   Yes                                $0                                                 0.020600%
73a                                           N/A      N/A               N/A
73b                                           N/A      N/A               N/A
 78   Yes                                $0   N/A      N/A               N/A                0.020600%
 79   Yes                                $0   N/A      Yes               N/A                0.060600%
 83   Yes                                $0   N/A      N/A               N/A                0.020600%
 84   Yes                                $0   N/A      N/A               N/A                0.020600%
 86   Yes                                $0   N/A      N/A               N/A                0.020600%
 88   Yes                                $0   N/A      N/A               N/A                0.020600%
 91   Yes                          $935,000   N/A      N/A               N/A                0.060600%
 92   Yes                                $0   N/A      N/A               N/A                0.100600%
101   Yes                                $0   N/A      N/A               N/A                0.040600%
103   Yes                                $0   N/A      N/A               N/A                0.060600%
104   Yes                                $0   N/A      N/A               N/A                0.020600%
106   Yes                                $0   N/A      N/A               N/A                0.110600%
111   Yes                                $0   N/A      N/A               N/A                0.020600%
113   Yes                                $0   N/A      N/A               N/A                0.020600%
116   Yes                                $0   N/A      N/A               N/A                0.020600%
117   Yes                                $0   N/A      N/A               N/A                0.020600%
118   Yes                                $0   N/A      N/A               N/A                0.020600%
120   Yes                                $0   N/A      N/A               N/A                0.020600%
127   Yes                                $0   N/A      N/A               N/A                0.020600%
130   Yes                                $0   N/A      Yes               N/A                0.020600%
131   Yes                                $0   N/A      N/A               N/A                0.020600%
132   Yes                                $0   N/A      N/A               N/A                0.020600%
134   Yes                                $0   N/A      N/A               N/A                0.020600%
136   No                                 $0   Yes      N/A               N/A                0.020600%
138   Yes                                $0   N/A      N/A               N/A                0.020600%
139   Yes                                $0   N/A      N/A               N/A                0.020600%
141   Yes                                $0   N/A      N/A               N/A                0.020600%
144   Yes                                $0   N/A      N/A               N/A                0.020600%
148   Yes                                $0   N/A      N/A               N/A                0.040600%
149   Yes                                $0   N/A      N/A               N/A                0.020600%
151   Yes                          $916,000   N/A      N/A               N/A                0.020600%
156   Yes                                $0   N/A      N/A               N/A                0.060600%
160   Yes                                $0   N/A      N/A               N/A                0.020600%
163   Yes                                $0   N/A      N/A               N/A                0.020600%
165   Yes                                $0   N/A      N/A               N/A                0.070600%
166   Yes                                $0   N/A      N/A               N/A                0.020600%
170   Yes                                $0   N/A      N/A               N/A                0.020600%
172   Yes                                $0   N/A      N/A               N/A                0.020600%
173   Yes                                $0   N/A      N/A               N/A                0.020600%
175   Yes                                $0   N/A      N/A               N/A                0.020600%
177   Yes                                $0   N/A      N/A               N/A                0.110600%
183   Yes                                $0   N/A      N/A               N/A                0.020600%
185   Yes                                $0   N/A      N/A               N/A                0.020600%
186   Yes                                $0   N/A      N/A               N/A                0.020600%
187   Yes                                $0                                                 0.110600%
187a                                          N/A      N/A               Yes
187b                                          N/A      N/A               Yes
188   Yes                                $0   N/A      N/A               N/A                0.020600%
189   Yes                                $0   N/A      N/A               N/A                0.020600%
191   Yes                                $0   N/A      N/A               N/A                0.020600%
193   Yes                                $0   N/A      N/A               Yes                0.020600%
195   Yes                                $0   N/A      N/A               N/A                0.060600%
197   Yes                                $0   N/A      N/A               N/A                0.020600%
199   Yes                                $0   N/A      N/A               N/A                0.070600%
200   Yes                                $0   N/A      N/A               N/A                0.020600%
201   Yes                                $0   N/A      N/A               Yes                0.020600%
204   Yes                                $0   N/A      N/A               N/A                0.020600%
206   Yes                                $0   N/A      N/A               Yes                0.020600%
208   Yes                                $0   N/A      N/A               N/A                0.020600%
209   Yes                                $0   N/A      N/A               N/A                0.020600%
210   Yes                                $0   N/A      N/A               Yes                0.020600%
214   Yes                                $0   N/A      N/A               Yes                0.020600%
217   Yes                                $0   N/A      N/A               N/A                0.020600%
219   Yes                                $0   N/A      N/A               N/A                0.020600%
220   Yes                                $0   N/A      N/A               N/A                0.020600%
221   Yes                                $0   N/A      N/A               Yes                0.020600%
222   Yes                                $0   N/A      N/A               Yes                0.020600%
223   Yes                                $0   N/A      N/A               N/A                0.020600%
226   Yes                                $0   N/A      N/A               Yes                0.020600%
230   Yes                                $0   N/A      N/A               Yes                0.020600%
231   Yes                                $0   N/A      N/A               Yes                0.110600%
232   Yes                                $0   N/A      N/A               Yes                0.020600%
234   Yes                                $0   N/A      Yes               N/A                0.020600%
237   Yes                                $0   N/A      N/A               Yes                0.020600%
238   Yes                                $0   N/A      N/A               Yes                0.020600%
240   No                                 $0   N/A      Yes               Yes                0.020600%
245   Yes                                $0   N/A      N/A               N/A                0.070600%
248   Yes                                $0   N/A      N/A               Yes                0.020600%
250   Yes                                $0   N/A      N/A               N/A                0.020600%
253   Yes                                $0   N/A      N/A               N/A                0.070600%
254   No                                 $0   N/A      N/A               Yes                0.020600%
255   Yes                                $0   N/A      Yes               N/A                0.020600%
256   Yes                                $0                                                 0.020600%
256a                                          N/A      N/A               N/A
256b                                          N/A      N/A               N/A
258   Yes                                $0   N/A      N/A               Yes                0.060600%
260   Yes                          $105,000   N/A      N/A               Yes                0.020600%
262   Yes                                $0   N/A      N/A               N/A                0.020600%
264   Yes                                $0   N/A      N/A               N/A                0.020600%
265   Yes                                $0   N/A      N/A               N/A                0.020600%
267   Yes                                $0   N/A      N/A               N/A                0.020600%
268   Yes                                $0   N/A      N/A               N/A                0.020600%
271   No                                 $0   N/A      N/A               Yes                0.020600%
272   Yes                                $0   N/A      N/A               Yes                0.020600%
276   No                                 $0   N/A      N/A               Yes                0.020600%
277   Yes                                $0   N/A      N/A               N/A                0.020600%
281   Yes                                $0   N/A      N/A               Yes                0.020600%
282   Yes                                $0   N/A      Yes               N/A                0.020600%
284   Yes                                $0   N/A      N/A               N/A                0.020600%
288   Yes                                $0   N/A      N/A               N/A                0.020600%
289   Yes                                $0   N/A      N/A               Yes                0.020600%
290   Yes                                $0   N/A      N/A               N/A                0.020600%
292   Yes                                $0   N/A      N/A               N/A                0.020600%
294   Yes                                $0   N/A      N/A               Yes                0.020600%
299   Yes                                $0   N/A      N/A               Yes                0.020600%
303   Yes                                $0   N/A      N/A               Yes                0.020600%
304   Yes                                $0   N/A      N/A               Yes                0.060600%
310   No                                 $0   N/A      N/A               Yes                0.020600%
312   Yes                                $0   N/A      N/A               Yes                0.110600%

314   Yes                                $0   N/A      N/A               N/A                0.020600%
315   Yes                                $0   N/A      N/A               Yes                0.020600%
318   Yes                                $0   N/A      N/A               Yes                0.020600%
319   Yes                                $0   N/A      N/A               Yes                0.020600%
323   Yes                                $0   N/A      N/A               Yes                0.110600%
324   Yes                                $0   N/A      N/A               Yes                0.020600%
325   Yes                                $0   N/A      N/A               Yes                0.020600%
328   Yes                                $0   N/A      N/A               Yes                0.020600%

329   Yes                                $0   N/A      N/A               Yes                0.110600%
331   Yes                                $0   N/A      N/A               Yes                0.020600%
335   Yes                                $0   N/A      N/A               Yes                0.020600%
336   Yes                                $0   N/A      N/A               Yes                0.020600%
338   Yes                                $0   N/A      N/A               Yes                0.020600%
340   Yes                                $0   N/A      N/A               Yes                0.020600%
342   Yes                                $0   N/A      N/A               N/A                0.020600%
344   Yes                                $0   N/A      N/A               Yes                0.020600%
346   No                                 $0   N/A      N/A               Yes                0.020600%
348   Yes                                $0   N/A      N/A               Yes                0.020600%
349   Yes                                $0   N/A      N/A               Yes                0.020600%
350   Yes                                $0   N/A      N/A               Yes                0.020600%
357   Yes                                $0   N/A      N/A               Yes                0.020600%

<CAPTION>

#     Loan Seller
---   ---------------------------------------
<S>   <C>
  1   Column Financial, Inc.
  2   Column Financial, Inc.
  3   Column Financial, Inc.
3a    Column Financial, Inc.
3b    Column Financial, Inc.
3c    Column Financial, Inc.
3d    Column Financial, Inc.
3e    Column Financial, Inc.
3f    Column Financial, Inc.
3g    Column Financial, Inc.
3h    Column Financial, Inc.
3i    Column Financial, Inc.
3j    Column Financial, Inc.
3k    Column Financial, Inc.
3l    Column Financial, Inc.
3m    Column Financial, Inc.
3n    Column Financial, Inc.
  4   Column Financial, Inc./Barclays Capital
  5   Column Financial, Inc.
  6   Column Financial, Inc.
 12   Column Financial, Inc.
 15   Column Financial, Inc.
 16   Column Financial, Inc.
 17   Column Financial, Inc.
17a   Column Financial, Inc.
17b   Column Financial, Inc.
17c   Column Financial, Inc.
 18   Column Financial, Inc.
 19   Column Financial, Inc.
 20   Column Financial, Inc.
 22   Column Financial, Inc.

 23   Column Financial, Inc.
 25   Column Financial, Inc.
25a   Column Financial, Inc.
25b   Column Financial, Inc.
 31   Column Financial, Inc.
 33   Column Financial, Inc.
 36   Column Financial, Inc.
 38   Column Financial, Inc.
 39   Column Financial, Inc.
 40   Column Financial, Inc.
 42   Column Financial, Inc.
 43   Column Financial, Inc.
 44   Column Financial, Inc.
 50   Column Financial, Inc.
50a   Column Financial, Inc.
50b   Column Financial, Inc.
50c   Column Financial, Inc.
50d   Column Financial, Inc.
50e   Column Financial, Inc.
50f   Column Financial, Inc.
 52   Column Financial, Inc.
 57   Column Financial, Inc.
 58   Column Financial, Inc.
 59   Column Financial, Inc.
 60   Column Financial, Inc.
 61   Column Financial, Inc.
 62   Column Financial, Inc.
 64   Column Financial, Inc.
 65   Column Financial, Inc.
 67   Column Financial, Inc.
 68   Column Financial, Inc.
 70   Column Financial, Inc.
 71   Column Financial, Inc.
 72   Column Financial, Inc.
 73   Column Financial, Inc.
73a   Column Financial, Inc.
73b   Column Financial, Inc.
 78   Column Financial, Inc.
 79   Column Financial, Inc.
 83   Column Financial, Inc.
 84   Column Financial, Inc.
 86   Column Financial, Inc.
 88   Column Financial, Inc.
 91   Column Financial, Inc.
 92   Column Financial, Inc.
101   Column Financial, Inc.
103   Column Financial, Inc.
104   Column Financial, Inc.
106   Column Financial, Inc.
111   Column Financial, Inc.
113   Column Financial, Inc.
116   Column Financial, Inc.
117   Column Financial, Inc.
118   Column Financial, Inc.
120   Column Financial, Inc.
127   Column Financial, Inc.
130   Column Financial, Inc.
131   Column Financial, Inc.
132   Column Financial, Inc.
134   Column Financial, Inc.
136   Column Financial, Inc.
138   Column Financial, Inc.
139   Column Financial, Inc.
141   Column Financial, Inc.
144   Column Financial, Inc.
148   Column Financial, Inc.
149   Column Financial, Inc.
151   Column Financial, Inc.
156   Column Financial, Inc.
160   Column Financial, Inc.
163   Column Financial, Inc.
165   Column Financial, Inc.
166   Column Financial, Inc.
170   Column Financial, Inc.
172   Column Financial, Inc.
173   Column Financial, Inc.
175   Column Financial, Inc.
177   Column Financial, Inc.
183   Column Financial, Inc.
185   Column Financial, Inc.
186   Column Financial, Inc.
187   Column Financial, Inc.
187a  Column Financial, Inc.
187b  Column Financial, Inc.
188   Column Financial, Inc.
189   Column Financial, Inc.
191   Column Financial, Inc.
193   Column Financial, Inc.
195   Column Financial, Inc.
197   Column Financial, Inc.
199   Column Financial, Inc.
200   Column Financial, Inc.
201   Column Financial, Inc.
204   Column Financial, Inc.
206   Column Financial, Inc.
208   Column Financial, Inc.
209   Column Financial, Inc.
210   Column Financial, Inc.
214   Column Financial, Inc.
217   Column Financial, Inc.
219   Column Financial, Inc.
220   Column Financial, Inc.
221   Column Financial, Inc.
222   Column Financial, Inc.
223   Column Financial, Inc.
226   Column Financial, Inc.
230   Column Financial, Inc.
231   Column Financial, Inc.
232   Column Financial, Inc.
234   Column Financial, Inc.
237   Column Financial, Inc.
238   Column Financial, Inc.
240   Column Financial, Inc.
245   Column Financial, Inc.
248   Column Financial, Inc.
250   Column Financial, Inc.
253   Column Financial, Inc.
254   Column Financial, Inc.
255   Column Financial, Inc.
256   Column Financial, Inc.
256a  Column Financial, Inc.
256b  Column Financial, Inc.
258   Column Financial, Inc.
260   Column Financial, Inc.
262   Column Financial, Inc.
264   Column Financial, Inc.
265   Column Financial, Inc.
267   Column Financial, Inc.
268   Column Financial, Inc.
271   Column Financial, Inc.
272   Column Financial, Inc.
276   Column Financial, Inc.
277   Column Financial, Inc.
281   Column Financial, Inc.
282   Column Financial, Inc.
284   Column Financial, Inc.
288   Column Financial, Inc.
289   Column Financial, Inc.
290   Column Financial, Inc.
292   Column Financial, Inc.
294   Column Financial, Inc.
299   Column Financial, Inc.
303   Column Financial, Inc.
304   Column Financial, Inc.
310   Column Financial, Inc.
312   Column Financial, Inc.

314   Column Financial, Inc.
315   Column Financial, Inc.
318   Column Financial, Inc.
319   Column Financial, Inc.
323   Column Financial, Inc.
324   Column Financial, Inc.
325   Column Financial, Inc.
328   Column Financial, Inc.

329   Column Financial, Inc.
331   Column Financial, Inc.
335   Column Financial, Inc.
336   Column Financial, Inc.
338   Column Financial, Inc.
340   Column Financial, Inc.
342   Column Financial, Inc.
344   Column Financial, Inc.
346   Column Financial, Inc.
348   Column Financial, Inc.
349   Column Financial, Inc.
350   Column Financial, Inc.
357   Column Financial, Inc.
</TABLE>

(1)   Assumes a Cut-off Date in September 2006.

(2)   In the case of the ARD Loans, the anticipated repayment date is assumed to
      be the maturity date for the purposes of the indicated column.

(3)   For mortgage loans classified as interest only, the monthly payments
      represent the average of one full year of interest payments. For mortgage
      loans with an initial interest only term, the monthly payments represent
      the principal and interest payments du

(4)   Anticipated Repayment Date.

(5)   Yes means that defeasance is permitted notwithstanding the Lockout Period.

<PAGE>

                                   EXHIBIT C-1

                       LIST OF ADDITIONAL COLLATERAL LOANS

Name                              Loan Seller
----                              -----------
Iowa State Student Housing        Column Financial, Inc.
East Gateway Center               LaSalle Bank National Association
Parc at Piedmont                  Column Financial, Inc.
LakeShore Medical                 Column Financial, Inc.
833 Jackson & 322 Green           Column Financial, Inc.
Villages at Del Rio Apartments    Column Financial, Inc.
City Center Professional          Column Financial, Inc.
Village Plaza Apartments          Column Financial, Inc.
Starbucks Center                  Column Financial, Inc.
A&F Service Center                NCB,FSB
Park Village Apartments           Column Financial, Inc.
Shrub Oak Center                  Column Financial, Inc.
Barrett Lake MHP                  Column Financial, Inc.
1776 Woodstead Court              Column Financial, Inc.
Cherryway Medical Center          Column Financial, Inc.
Aransas Pass Retail               Column Financial, Inc.
Sunset Mobile Home Park           Column Financial, Inc.

<PAGE>

                              EXHIBIT C-2

                        LIST OF MEZZANINE LOANS

Name                                           Loan Seller
----                                           -----------
280 Park Avenue                                Column Financial, Inc.
Babcock & Brown FX 3                           Column Financial, Inc.
Babcock & Brown FX 3 - Sonterra
Babcock & Brown FX 3 - Sandridge
Babcock & Brown FX 3 - Majestic Heights
Babcock & Brown FX 3 - Toscana Villas
Babcock & Brown FX 3 - Remington Oaks
Babcock & Brown FX 3 - Holly Tree
Babcock & Brown FX 3 - Holly Ridge
Babcock & Brown FX 3 - Pecan Crossing
Babcock & Brown FX 3 - Broadmoor
Babcock & Brown FX 3 - Preston Valley
Babcock & Brown FX 3 - San Marin
Babcock & Brown FX 3 - Chesapeake
Babcock & Brown FX 3 - River Road Terrace
Babcock & Brown FX 3 - Ravenwood
Harwood Center                                 Column Financial, Inc.
The Edge at Avenue North                       LaSalle Bank National Association
Delaware Multifamily Portfolio                 Column Financial, Inc.
Towne Court
Park Place Apartments
Water View Court
Iowa State Student Housing                     Column Financial, Inc.
105 West Adams Street                          Column Financial, Inc.
LakeShore Medical                              Column Financial, Inc.

<PAGE>

                                    EXHIBIT D

             FORM OF [MASTER] [SPECIAL] SERVICER REQUEST FOR RELEASE

                                     [Date]

Wells Fargo Bank, N.A.
9062 Old Annapolis Road
Columbia, MD 21045-1951
Attention: Mortgage Document Custody (CMBS)

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4

           In connection with the administration of the Mortgage Files held by
or on behalf of you as trustee under the Pooling and Servicing Agreement, dated
as of September 1, 2006 (the "Pooling and Servicing Agreement"), among Credit
Suisse First Boston Mortgage Securities Corp., as depositor, KeyCorp Real Estate
Capital Markets, Inc., as master servicer (in such capacity, the "Master
Servicer No. 1"), NCB, FSB, as master servicer (in such capacity, the "Master
Servicer No. 2"), LNR Partners, Inc., as special servicer (in such capacity, the
"Special Servicer No. 1"), National Consumer Cooperative Bank as special
servicer (in such capacity, the "Special Servicer No. 2"), LaSalle Bank National
Association, as certificate administrator (in such capacity, the "Certificate
Administrator") and paying agent and Wells Fargo Bank, N.A., as trustee (the
"Trustee"), and you, as trustee (in such capacity, the "Trustee"), the
undersigned as [Master] [Special] Servicer No. [1][2] hereby requests a release
of the Mortgage File (or the portion thereof specified below) held by or on
behalf of you as Trustee with respect to the following described Mortgage Loan
for the reason indicated below.

Property Name:

Address:

Prospectus No.:

If only particular documents in the Mortgage File are requested, please specify
which:

Reason for requesting Mortgage File (or portion thereof):

______     1. Mortgage Loan paid in full. The undersigned hereby certifies that
           all amounts received in connection with the Mortgage Loan that are
           required to be credited to the Collection Account or, if applicable,
           a Mortgage Loan Combination Custodial Account pursuant to the Pooling
           and Servicing Agreement, have been or will be so credited.

______     2.   Other. (Describe) ______________________________________________
           _____________________________________________________________________

           The undersigned acknowledges that the above Mortgage File (or
requested portion thereof) will be held by the undersigned in accordance with
the provisions of the Pooling and Servicing Agreement and will be returned to
you or your designee within ten days of our receipt thereof, unless the Mortgage
Loan has been paid in full, in which case the Mortgage File (or such portion
thereof) will be retained by us permanently.

           Capitalized terms used but not defined herein shall have the meanings
ascribed to them in the Pooling and Servicing Agreement.

                               _________________________________________________
                               as [Master] [Special] Servicer

                               By: _____________________________________________
                               Name:
                               Title:

<PAGE>

                                    EXHIBIT E

                     FORM OF STATEMENT TO CERTIFICATEHOLDERS

                               See Attached Report

<PAGE>

                                  EXHIBIT F-1A

                        FORM I OF TRANSFEROR CERTIFICATE
                  FOR TRANSFERS OF NON-REGISTERED CERTIFICATES

                                     [Date]

LaSalle Bank National Association
135 South LaSalle Street, Suite 1625
Chicago, Illinois 60603
Attention: Global Securities and Trust Services, CSMC 2006-C4

[OR OTHER CERTIFICATE REGISTRAR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of
                  September 28, 2006 (the "Closing Date") of $__________]
                  [evidencing a ____% Percentage Interest in the related Class]
                  (the "Transferred Certificates")

Dear Sirs:

           This letter is delivered to you in connection with the transfer by
_________________ (the "Transferor") to _________________ (the "Transferee") of
the Transferred Certificates pursuant to Section 5.02 of the Pooling and
Servicing Agreement dated as of September 1, 2006 (the "Pooling and Servicing
Agreement"), among Credit Suisse First Boston Mortgage Securities Corp., as
depositor, KeyCorp Real Estate Capital Markets, Inc., as master servicer (in
such capacity, the "Master Servicer No. 1"), NCB, FSB, as master servicer (in
such capacity, the "Master Servicer No. 2"), LNR Partners, Inc., as special
servicer (in such capacity, the "Special Servicer No. 1"), National Consumer
Cooperative Bank as special servicer (in such capacity, the "Special Servicer
No. 2"), LaSalle Bank National Association, as certificate administrator (in
such capacity, the "Certificate Administrator") and paying agent and Wells Fargo
Bank, N.A., as trustee (the "Trustee"). All capitalized terms used herein and
not otherwise defined shall have the respective meanings set forth in the
Pooling and Servicing Agreement. The Transferor hereby certifies, represents and
warrants to you, as Certificate Registrar, that:

           1. The Transferor is the lawful owner of the Transferred Certificates
with the full right to transfer such Certificates free from any and all claims
and encumbrances whatsoever.

           2. Neither the Transferor nor anyone acting on its behalf has (a)
offered, transferred, pledged, sold or otherwise disposed of any Transferred
Certificate, any interest in a Transferred Certificate or any other similar
security to any person in any manner, (b) solicited any offer to buy or accept a
transfer, pledge or other disposition of any Transferred Certificate, any
interest in a Transferred Certificate or any other similar security from any
person in any manner, (c) otherwise approached or negotiated with respect to any
Transferred Certificate, any interest in a Transferred Certificate or any other
similar security with any person in any manner, (d) made any general
solicitation with respect to any Transferred Certificate, any interest in a
Transferred Certificate or any other similar security by means of general
advertising or in any other manner, or (e) taken any other action with respect
to any Transferred Certificate, any interest in a Transferred Certificate or any
other similar security, which (in the case of any of the acts described in
clauses (a) through (e) hereof) would constitute a distribution of the
Transferred Certificates under the Securities Act of 1933, as amended (the
"Securities Act"), or would render the disposition of the Transferred
Certificates a violation of Section 5 of the Securities Act or any state
securities laws, or would require registration or qualification of the
Transferred Certificates pursuant to the Securities Act or any state securities
laws.

           3. The Transferor and any person acting on behalf of the Transferor
in this matter reasonably believe that the Transferee is a "qualified
institutional buyer" as that term is defined in Rule 144A ("Rule 144A") under
the Securities Act (a "Qualified Institutional Buyer") purchasing for its own
account or for the account of another person that is itself a Qualified
Institutional Buyer. In determining whether the Transferee is a Qualified
Institutional Buyer, the Transferor and any person acting on behalf of the
Transferor in this matter has relied upon the following method(s) of
establishing the Transferee's ownership and discretionary investments of
securities (check one or more):

      ___  (a) The Transferee's most recent publicly available financial
           statements, which statements present the information as of a date
           within 16 months preceding the date of sale of the Transferred
           Certificates in the case of a U.S. purchaser and within 18 months
           preceding such date of sale in the case of a foreign purchaser; or

      ___  (b) The most recent publicly available information appearing in
           documents filed by the Transferee with the Securities and Exchange
           Commission or another United States federal, state, or local
           governmental agency or self-regulatory organization, or with a
           foreign governmental agency or self-regulatory organization, which
           information is as of a date within 16 months preceding the date of
           sale of the Transferred Certificates in the case of a U.S. purchaser
           and within 18 months preceding such date of sale in the case of a
           foreign purchaser; or

      ___  (c) The most recent publicly available information appearing in a
           recognized securities manual, which information is as of a date
           within 16 months preceding the date of sale of the Transferred
           Certificates in the case of a U.S. purchaser and within 18 months
           preceding such date of sale in the case of a foreign purchaser; or

      ___  (d) A certification by the chief financial officer, a person
           fulfilling an equivalent function, or other executive officer of the
           Transferee, specifying the amount of securities owned and invested on
           a discretionary basis by the Transferee as of a specific date on or
           since the close of the Transferee's most recent fiscal year, or, in
           the case of a Transferee that is a member of a "family of investment
           companies", as that term is defined in Rule 144A, a certification by
           an executive officer of the investment adviser specifying the amount
           of securities owned by the "family of investment companies" as of a
           specific date on or since the close of the Transferee's most recent
           fiscal year.

      ___  (e)  Other. (Please specify brief description of method)_____________
                ________________________________________________________________
                ________________________________________________________________

           4. The Transferor and any person acting on behalf of the Transferor
understand that in determining the aggregate amount of securities owned and
invested on a discretionary basis by an entity for purposes of establishing
whether such entity is a Qualified Institutional Buyer:

           (a) the following instruments and interests shall be excluded:
      securities of issuers that are affiliated with such entity; securities
      that are part of an unsold allotment to or subscription by such entity, if
      such entity is a dealer; securities of issuers that are part of such
      entity's "family of investment companies", if such entity is a registered
      investment company; bank deposit notes and certificates of deposit; loan
      participations; repurchase agreements; securities owned but subject to a
      repurchase agreement; and currency, interest rate and commodity swaps;

           (b) the aggregate value of the securities shall be the cost of such
      securities, except where the entity reports its securities holdings in its
      financial statements on the basis of their market value, and no current
      information with respect to the cost of those securities has been
      published, in which case the securities may be valued at market; and

           (c) securities owned by subsidiaries of the entity that are
      consolidated with the entity in its financial statements prepared in
      accordance with generally accepted accounting principles may be included
      if the investments of such subsidiaries are managed under the direction of
      the entity, except that, unless the entity is a reporting company under
      Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended,
      securities owned by such subsidiaries may not be included if the entity
      itself is a majority-owned subsidiary that would be included in the
      consolidated financial statements of another enterprise.

           5. The Transferor or a person acting on its behalf has taken
reasonable steps to ensure that the Transferee is aware that the Transferor is
relying on the exemption from the provisions of Section 5 of the Securities Act
provided by Rule 144A.

           6. The Transferor or a person acting on its behalf has furnished, or
caused to be furnished, to the Transferee all information regarding (a) the
Depositor, (b) the Transferred Certificates and distributions thereon, (c) the
nature, performance and servicing of the Mortgage Loans, (d) the Pooling and
Servicing Agreement, and (e) all related matters, that the Transferee has
requested.

                               Very truly yours,

                               _________________________________________________
                               (Transferor)

                               By:______________________________________________
                               Name:____________________________________________
                               Title:___________________________________________

<PAGE>

                                  EXHIBIT F-1B

                        FORM II OF TRANSFEROR CERTIFICATE
                  FOR TRANSFERS OF NON-REGISTERED CERTIFICATES

                                     [Date]

LaSalle Bank National Association
135 LaSalle Street, Suite 1625
Chicago, Illinois 60603
Attention: Global Securities and Trust Services, CSMC 2006-C4

[OR OTHER CERTIFICATE REGISTRAR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of
                  September 28, 2006 (the "Closing Date") of $__________]
                  [evidencing a ____% Percentage Interest in the related Class]
                  (the "Transferred Certificates")

Dear Sirs:

           This letter is delivered to you in connection with the transfer by
_________________ (the "Transferor") to _________________ (the "Transferee") of
the Transferred Certificates pursuant to Section 5.02 of the Pooling and
Servicing Agreement dated as of September 1, 2006 (the "Pooling and Servicing
Agreement"), among Credit Suisse First Boston Mortgage Securities Corp., as
depositor, KeyCorp Real Estate Capital Markets, Inc., as master servicer (in
such capacity, the "Master Servicer No. 1"), NCB, FSB, as master servicer (in
such capacity, the "Master Servicer No. 2"), LNR Partners, Inc., as special
servicer (in such capacity, the "Special Servicer No. 1"), National Consumer
Cooperative Bank as special servicer (in such capacity, the "Special Servicer
No. 2"), LaSalle Bank National Association, as certificate administrator (in
such capacity, the "Certificate Administrator") and paying agent and Wells Fargo
Bank, N.A., as trustee (the "Trustee"). All capitalized terms used herein and
not otherwise defined shall have the respective meanings set forth in the
Pooling and Servicing Agreement. The Transferor hereby certifies, represents and
warrants to you, as Certificate Registrar, and for the benefit of the Depositor,
the Certificate Administrator and the Trustee, that:

                1. The Transferor is the lawful owner of the Transferred
      Certificates with the full right to transfer such Certificates free from
      any and all claims and encumbrances whatsoever.

                2. Neither the Transferor nor anyone acting on its behalf has
      (a) offered, transferred, pledged, sold or otherwise disposed of any
      Transferred Certificate, any interest in a Transferred Certificate or any
      other similar security to any person in any manner, (b) solicited any
      offer to buy or accept a transfer, pledge or other disposition of any
      Transferred Certificate, any interest in a Transferred Certificate or any
      other similar security from any person in any manner, (c) otherwise
      approached or negotiated with respect to any Transferred Certificate, any
      interest in a Transferred Certificate or any other similar security with
      any person in any manner, (d) made any general solicitation with respect
      to any Transferred Certificate, any interest in a Transferred Certificate
      or any other similar security by means of general advertising or in any
      other manner, or (e) taken any other action with respect to any
      Transferred Certificate, any interest in a Transferred Certificate or any
      other similar security, which (in the case of any of the acts described in
      clauses (a) through (e) hereof) would constitute a distribution of the
      Transferred Certificates under the Securities Act of 1933, as amended (the
      "Securities Act"), would render the disposition of the Transferred
      Certificates a violation of Section 5 of the Securities Act or any state
      securities laws, or would require registration or qualification of the
      Transferred Certificates pursuant to the Securities Act or any state
      securities laws.

                               Very truly yours,

                               _________________________________________________
                               (Transferor)

                               By:______________________________________________
                               Name:____________________________________________
                               Title:___________________________________________

<PAGE>

                                  EXHIBIT F-1C

                        FORM I OF TRANSFEROR CERTIFICATE
        FOR TRANSFERS OF INTERESTS IN GLOBAL CERTIFICATES FOR CLASSES OF
                           NON-REGISTERED CERTIFICATES

                                     [Date]

LaSalle Bank National Association
135 LaSalle Street, Suite 1625
Chicago, Illinois 60603
Attention: Global Securities and Trust Services, CSMC 2006-C4

[OR OTHER CERTIFICATE REGISTRAR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4,
                  Class ____, having an initial aggregate [Certificate Principal
                  Balance] [Certificate Notional Amount] as of September 28,
                  2006 (the "Issue Date") of $__________ (the "Transferred
                  Certificates")

Ladies and Gentlemen:

           This letter is delivered to you in connection with the Transfer by
______________________ (the "Transferor") to ______________________ (the
"Transferee") through our respective Depository Participants of the Transferor's
beneficial ownership interest (currently maintained on the books and records of
The Depository Trust Company ("DTC") and the Depository Participants) in the
Transferred Certificates. The Certificates, including the Transferred
Certificates, were issued pursuant to the Pooling and Servicing Agreement dated
as of September 1, 2006 (the "Pooling and Servicing Agreement"), among Credit
Suisse First Boston Mortgage Securities Corp., as depositor, KeyCorp Real Estate
Capital Markets, Inc., as master servicer (in such capacity, the "Master
Servicer No. 1"), NCB, FSB, as master servicer (in such capacity, the "Master
Servicer No. 2"), LNR Partners, Inc., as special servicer (in such capacity, the
"Special Servicer No. 1"), National Consumer Cooperative Bank as special
servicer (in such capacity, the "Special Servicer No. 2"), LaSalle Bank National
Association, as certificate administrator (in such capacity, the "Certificate
Administrator") and paying agent and Wells Fargo Bank, N.A., as trustee (the
"Trustee"). All capitalized terms used but not otherwise defined herein shall
have the respective meanings set forth in the Pooling and Servicing Agreement.
The Transferor hereby certifies, represents and warrants to and agrees with you,
as Certificate Registrar, and for the benefit of the Depositor, the Certificate
Administrator and the Trustee, that:

           1. The Transferor is the lawful owner of the Transferred Certificates
with the full right to transfer such Certificates free from any and all claims
and encumbrances whatsoever.

           2. Neither the Transferor nor anyone acting on its behalf has (a)
offered, transferred, pledged, sold or otherwise disposed of any Transferred
Certificate, any interest in a Transferred Certificate or any other similar
security to any person in any manner, (b) solicited any offer to buy or accept a
transfer, pledge or other disposition of any Transferred Certificate, any
interest in a Transferred Certificate or any other similar security from any
person in any manner, (c) otherwise approached or negotiated with respect to any
Transferred Certificate, any interest in a Transferred Certificate or any other
similar security with any person in any manner, (d) made any general
solicitation with respect to any Transferred Certificate, any interest in a
Transferred Certificate or any other similar security by means of general
advertising or in any other manner, or (e) taken any other action with respect
to any Transferred Certificate, any interest in a Transferred Certificate or any
other similar security, which (in the case of any of the acts described in
clauses (a) through (e) hereof) would constitute a distribution of the
Transferred Certificates under the Securities Act of 1933, as amended (the
"Securities Act"), would render the disposition of the Transferred Certificates
a violation of Section 5 of the Securities Act or any state securities laws, or
would require registration or qualification of the Transferred Certificates
pursuant to the Securities Act or any state securities laws.

                               Very truly yours,

                               _________________________________________________
                               (Transferor)

                               By:______________________________________________
                               Name:____________________________________________

<PAGE>

                                  EXHIBIT F-1D

                        FORM II OF TRANSFEROR CERTIFICATE
        FOR TRANSFERS OF INTERESTS IN GLOBAL CERTIFICATES FOR CLASSES OF
                           NON-REGISTERED CERTIFICATES

                                     [Date]

LaSalle Bank National Association
135 LaSalle Street, Suite 1625
Chicago, Illinois 60603
Attention: Global Securities and Trust Services, CSMC 2006-C4

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4,
                  Class ____, having an initial aggregate [Certificate Principal
                  Balance] [Certificate Notional Amount] as of September 28,
                  2006 (the "Issue Date") of $__________ (the "Transferred
                  Certificates")

Ladies and Gentlemen:

           This letter is delivered to you in connection with the Transfer by
______________________ (the "Transferor") to ______________________ (the
"Transferee") through our respective Depository Participants of the Transferor's
beneficial ownership interest (currently maintained on the books and records of
The Depository Trust Company ("DTC") and the Depository Participants) in the
Transferred Certificates. The Certificates, including the Transferred
Certificates, were issued pursuant to the Pooling and Servicing Agreement dated
as of September 1, 2006 (the "Pooling and Servicing Agreement"), among Credit
Suisse First Boston Mortgage Securities Corp., as depositor, KeyCorp Real Estate
Capital Markets, Inc., as master servicer (in such capacity, the "Master
Servicer No. 1"), NCB, FSB, as master servicer (in such capacity, the "Master
Servicer No. 2"), LNR Partners, Inc., as special servicer (in such capacity, the
"Special Servicer No. 1"), National Consumer Cooperative Bank as special
servicer (in such capacity, the "Special Servicer No. 2"), LaSalle Bank National
Association, as certificate administrator (in such capacity, the "Certificate
Administrator") and paying agent and Wells Fargo Bank, N.A., as trustee (the
"Trustee"). All capitalized terms used but not otherwise defined herein shall
have the respective meanings set forth in the Pooling and Servicing Agreement.
The Transferor hereby certifies, represents and warrants to and agrees with you,
as Certificate Registrar, and for the benefit of the Depositor, the Certificate
Administrator and the Trustee, that:

           1. The Transferor is the lawful owner of the Transferred Certificates
with the full right to transfer such Certificates free from any and all claims
and encumbrances whatsoever.

           2. At the time the buy order was originated, the Transferor
reasonably believed that the Transferee was outside the United States, its
territories and possessions.

           3. If the Transferor is a distributor (within the meaning of Rule
902(d) under the Securities Act of 1933, as amended (the "Securities Act")) with
respect to the Transferred Certificates, or an affiliate of such a distributor
or of the Depositor, or a person acting on behalf of such a distributor, the
Depositor or any affiliate of such distributor or of the Depositor, then:

                (a) the sale of the Transferred Certificates by the Transferor
      to the Transferee will be executed in, on or through a physical trading
      floor of an established foreign securities exchange that is located
      outside the United States, its territories and possessions;

                (b) no directed selling efforts (within the meaning of Rule
      902(c) under the Securities Act) have been made in the United States, its
      territories and possessions, with respect to the Transferred Certificates
      by the Transferor, any of its affiliates, or any person acting on behalf
      of any of the foregoing;

                (c) all offers and sales, if any, of the Transferred
      Certificates by or on behalf of the Transferor prior to the expiration of
      the distribution compliance period specified in category 2 or 3 (paragraph
      (b)(2) or (b)(3)) in Rule 903 under the Securities Act, as applicable,
      have been and will be made only in accordance with the provisions of Rule
      903 or Rule 904 under the Securities Act, pursuant to registration of the
      Transferred Certificates under the Securities Act, or pursuant to an
      available exemption from the registration requirements of the Securities
      Act;

                (d) all offering materials and documents (other than press
      releases), if any, used in connection with offers and sales of the
      Transferred Certificates by or on behalf of the Transferor prior to the
      expiration of the distribution compliance period specified in category 2
      or 3 (paragraph (b)(2) or (b)(3)) in Rule 903 under the Securities Act, as
      applicable, complied with the requirements of Rule 902(g)(2) under the
      Securities Act; and

                (e) if the Transferee is a distributor, a dealer or a person
      receiving a selling concession, a fee or other remuneration and the offer
      or sale of the Transferred Certificates thereto occurs prior to the
      expiration of the applicable 40-day distribution compliance period, the
      Transferor has sent a confirmation or other notice to the Transferee that
      the Transferee is subject to the same restrictions on offers and sales
      that apply to a distributor.

           4. If the Transferor is not a distributor with respect to the
Transferred Certificates or an affiliate of such a distributor or of the
Depositor or acting on behalf of such a distributor, the Depositor or any
affiliate of such a distributor or of the Depositor, then:

                (a) the sale of the Transferred Certificates by the Transferor
      to the Transferee will be executed in, on or through the facilities of a
      designated offshore securities market described in paragraph (b) of Rule
      902 under the Securities Act, and neither the Transferor nor anyone acting
      on its behalf knows that such transaction has been prearranged with a
      buyer in the United States, its territories and possessions;

                (b) no directed selling efforts (within the meaning of Rule
      902(c) under the Securities Act) have been made in the United States, its
      territories and possessions, with respect to the Transferred Certificates
      by the Transferor, any of its affiliates, or any person acting on behalf
      of any of the foregoing;

                (c) if the Transferee is a dealer or a person receiving a
      selling concession, a fee or other remuneration and the offer or sale of
      the Transferred Certificates thereto occurs prior to the expiration of the
      applicable 40-day distribution compliance period, the Transferor has sent
      a confirmation or other notice to the Transferee stating that the
      Transferred Certificates may be offered and sold during the distribution
      compliance period only in accordance with the provisions of Regulation S
      under the Securities Act, pursuant to registration of the Transferred
      Certificates under the Securities Act or pursuant to an available
      exemption from the registration requirements of the Securities Act.

                               Very truly yours,

                               _________________________________________________
                               (Transferor)

                               By:______________________________________________
                                  Name:_________________________________________
                                  Title:________________________________________

<PAGE>

                                  EXHIBIT F-2A

                FORM I OF TRANSFEREE CERTIFICATE FOR TRANSFERS OF
                NON-REGISTERED CERTIFICATES HELD IN PHYSICAL FORM

                                     [Date]

LaSalle Bank National Association
135 LaSalle Street, Suite 1625
Chicago, Illinois 60603
Attention: Global Securities and Trust Services, CSMC 2006-C4

[OR OTHER CERTIFICATE REGISTRAR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of
                  September 28, 2006 (the "Closing Date") of $__________]
                  [evidencing a ____% Percentage Interest in the related Class]
                  (the "Transferred Certificates")

Dear Sirs:

           This letter is delivered to you in connection with the transfer by
_________________ (the "Transferor") to _________________ (the "Transferee") of
the Transferred Certificates pursuant to Section 5.02 of the Pooling and
Servicing Agreement dated as of September 1, 2006 (the "Pooling and Servicing
Agreement"), among Credit Suisse First Boston Mortgage Securities Corp., as
depositor, KeyCorp Real Estate Capital Markets, Inc., as master servicer (in
such capacity, the "Master Servicer No. 1"), NCB, FSB, as master servicer (in
such capacity, the "Master Servicer No. 2"), LNR Partners, Inc., as special
servicer (in such capacity, the "Special Servicer No. 1"), National Consumer
Cooperative Bank as special servicer (in such capacity, the "Special Servicer
No. 2"), LaSalle Bank National Association, as certificate administrator (in
such capacity, the "Certificate Administrator") and paying agent and Wells Fargo
Bank, N.A., as trustee (the "Trustee"). All capitalized terms used herein and
not otherwise defined shall have the respective meanings set forth in the
Pooling and Servicing Agreement. The Transferee hereby certifies, represents and
warrants to you, as Certificate Registrar, and for the benefit of the Depositor,
the Certificate Administrator and the Trustee, that:

           1. The Transferee is a "qualified institutional buyer" (a "Qualified
Institutional Buyer") as that term is defined in Rule 144A ("Rule 144A") under
the Securities Act of 1933, as amended (the "Securities Act"), and has completed
one of the forms of certification to that effect attached hereto as Annex 1 and
Annex 2. The Transferee is aware that the sale to it is being made in reliance
on Rule 144A. The Transferee is acquiring the Transferred Certificates for its
own account or for the account of another Qualified Institutional Buyer, and
understands that such Transferred Certificates may be resold, pledged or
transferred only (a) to a person reasonably believed to be a Qualified
Institutional Buyer that purchases for its own account or for the account of
another Qualified Institutional Buyer and to whom notice is given that the
resale, pledge or transfer is being made in reliance on Rule 144A, or (b)
pursuant to another exemption from registration under the Securities Act.

           2. The Transferee has been furnished with all information regarding
(a) the Depositor, (b) the Transferred Certificates and distributions thereon,
(c) the nature, performance and servicing of the Mortgage Loans, (d) the Pooling
and Servicing Agreement and the Trust Fund created pursuant thereto, and (e) all
related matters, that it has requested.

           3. If the Transferee proposes that the Transferred Certificates be
registered in the name of a nominee, such nominee has completed the Nominee
Acknowledgment below.

                               Very truly yours,

                               _________________________________________________
                               (Transferor)

                               By:______________________________________________
                               Name:____________________________________________
                               Title:___________________________________________

 <PAGE>

                         Nominee Acknowledgment

           The undersigned hereby acknowledges and agrees that as to the
Transferred Certificates being registered in its name, the sole beneficial owner
thereof is and shall be the Transferee identified above, for whom the
undersigned is acting as nominee.

                               _________________________________________________
                               (Nominee)

                               By:______________________________________________
                               Name:____________________________________________
                               Title:___________________________________________

<PAGE>

                                                         ANNEX 1 TO EXHIBIT F-2A

            QUALIFIED INSTITUTIONAL BUYER STATUS UNDER SEC RULE 144A
          [For Transferees Other Than Registered Investment Companies]

           The undersigned hereby certifies as follows to [name of Transferor]
(the "Transferor") and [name of Certificate Registrar], as Certificate
Registrar, with respect to the mortgage pass-through certificates being
transferred (the "Transferred Certificates") as described in the Transferee
certificate to which this certification relates and to which this certification
is an Annex:

           1. As indicated below, the undersigned is the chief financial
officer, a person fulfilling an equivalent function, or other executive officer
of the entity purchasing the Transferred Certificates (the "Transferee").

           2. The Transferee is a "qualified institutional buyer" as that term
is defined in Rule 144A under the Securities Act of 1933, as amended ("Rule
144A") because (i) the Transferee [each of the Transferee's equity owners] owned
and/or invested on a discretionary basis $______________________(1) in
securities (other than the excluded securities referred to below) as of the end
of the Transferee's most recent fiscal year (such amount being calculated in
accordance with Rule 144A) and (ii) the Transferee satisfies the criteria in the
category marked below.

      ___  Corporation, etc. The Transferee is a corporation (other than a bank,
           savings and loan association or similar institution), Massachusetts
           or similar business trust, partnership, or any organization described
           in Section 501(c)(3) of the Internal Revenue Code of 1986.

      ___  Bank. The Transferee (a) is a national bank or a banking institution
           organized under the laws of any state, U.S. territory or the District
           of Columbia, the business of which is substantially confined to
           banking and is supervised by the state or territorial banking
           commission or similar official or is a foreign bank or equivalent
           institution, and (b) has an audited net worth of at least $25,000,000
           as demonstrated in its latest annual financial statements, a copy of
           which is attached hereto, as of a date not more than 16 months
           preceding the date of sale of the Transferred Certificates in the
           case of a U.S. bank, and not more than 18 months preceding such date
           of sale in the case of a foreign bank or equivalent institution.

      ___  Savings and Loan. The Transferee (a) is a savings and loan
           association, building and loan association, cooperative bank,
           homestead association or similar institution, which is supervised and
           examined by a state or federal authority having supervision over any
           such institutions or is a foreign savings and loan association or
           equivalent institution and (b) has an audited net worth of at least
           $25,000,000 as demonstrated in its latest annual financial
           statements, a copy of which is attached hereto, as of a date not more
           than 16 months preceding the date of sale of the Transferred
           Certificates in the case of a U.S. savings and loan association, and
           not more than 18 months preceding such date of sale in the case of a
           foreign savings and loan association or equivalent institution.

---------------------------
(1)   Transferee or each of its equity owners must own and/or invest on a
      discretionary basis at least $100,000,000 in securities unless Transferee
      or any such equity owner, as the case may be, is a dealer, and, in that
      case, Transferee or such equity owner, as the case may be, must own and/or
      invest on a discretionary basis at least $10,000,000 in securities.

      ___  Broker-dealer. The Transferee is a dealer registered pursuant to
           Section 15 of the Securities Exchange Act of 1934, as amended.

      ___  Insurance Company. The Transferee is an insurance company whose
           primary and predominant business activity is the writing of insurance
           or the reinsuring of risks underwritten by insurance companies and
           which is subject to supervision by the insurance commissioner or a
           similar official or agency of a State, U.S. territory or the District
           of Columbia.

      ___  State or Local Plan. The Transferee is a plan established and
           maintained by a State, its political subdivisions, or any agency or
           instrumentality of the State or its political subdivisions, for the
           benefit of its employees.

      ___  ERISA Plan. The Transferee is an employee benefit plan within the
           meaning of Title I of the Employee Retirement Income Security Act of
           1974.

      ___  Investment Advisor. The Transferee is an investment advisor
           registered under the Investment Advisers Act of 1940, as amended.

      ___  QIB Subsidiary. All of the Transferee's equity owners are "qualified
           institutional buyers" within the meaning of Rule 144A.

      ___  Other. (Please supply a brief description of the entity and a
           cross-reference to the paragraph and subparagraph under subsection
           (a)(1) of Rule 144A pursuant to which it qualifies. Note that
           registered investment companies should complete Annex 2 rather than
           this Annex 1.) ______________________________________________________
           _____________________________________________________________________
           _____________________________________________________________________

           3. For purposes of determining the aggregate amount of securities
owned and/or invested on a discretionary basis by any Person, the Transferee did
not include (i) securities of issuers that are affiliated with such Person, (ii)
securities that are part of an unsold allotment to or subscription by such
Person, if such Person is a dealer, (iii) bank deposit notes and certificates of
deposit, (iv) loan participations, (v) repurchase agreements, (vi) securities
owned but subject to a repurchase agreement and (vii) currency, interest rate
and commodity swaps.

           4. For purposes of determining the aggregate amount of securities
owned and/or invested on a discretionary basis by any Person, the Transferee
used the cost of such securities to such Person, unless such Person reports its
securities holdings in its financial statements on the basis of their market
value, and no current information with respect to the cost of those securities
has been published, in which case the securities were valued at market. Further,
in determining such aggregate amount, the Transferee may have included
securities owned by subsidiaries of such Person, but only if such subsidiaries
are consolidated with such Person in its financial statements prepared in
accordance with generally accepted accounting principles and if the investments
of such subsidiaries are managed under such Person's direction. However, such
securities were not included if such Person is a majority-owned, consolidated
subsidiary of another enterprise and such Person is not itself a reporting
company under the Securities Exchange Act of 1934, as amended.

           5. The Transferee is familiar with Rule 144A and understands that the
Transferor and other parties related to the Transferred Certificates are relying
and will continue to rely on the statements made herein because one or more
sales to the Transferee may be in reliance on Rule 144A.

           ___ ___ Will the Transferee be purchasing the Transferred
           Yes No  Certificates only for the Transferee's own account?

           6. If the answer to the foregoing question is "no", then in each case
where the Transferee is purchasing for an account other than its own, such
account belongs to a third party that is itself a "qualified institutional
buyer" within the meaning of Rule 144A, and the "qualified institutional buyer"
status of such third party has been established by the Transferee through one or
more of the appropriate methods contemplated by Rule 144A.

           7. The Transferee will notify each of the parties to which this
certification is made of any changes in the information and conclusions herein.
Until such notice is given, the Transferee's purchase of the Transferred
Certificates will constitute a reaffirmation of this certification as of the
date of such purchase. In addition, if the Transferee is a bank or savings and
loan as provided above, the Transferee agrees that it will furnish to such
parties any updated annual financial statements that become available on or
before the date of such purchase, promptly after they become available.

           8. Capitalized terms used but not defined herein have the respective
meanings ascribed thereto in the Pooling and Servicing Agreement pursuant to
which the Transferred Certificates were issued.

                               _________________________________________________
                               Print Name of Transferee

                               By: _____________________________________________
                               Name: ___________________________________________
                               Title: __________________________________________
                               Date: ___________________________________________

<PAGE>

                                                         ANNEX 2 TO EXHIBIT F-2A

            QUALIFIED INSTITUTIONAL BUYER STATUS UNDER SEC RULE 144A
           [For Transferees That Are Registered Investment Companies]

           The undersigned hereby certifies as follows to [name of Transferor]
(the "Transferor") and [name of Certificate Registrar], as Certificate
Registrar, with respect to the mortgage pass-through certificates (the
"Transferred Certificates") described in the Transferee certificate to which
this certification relates and to which this certification is an Annex:

           1. As indicated below, the undersigned is the chief financial
officer, a person fulfilling an equivalent function, or other executive officer
of the entity purchasing the Transferred Certificates (the "Transferee") or, if
the Transferee is a "qualified institutional buyer" as that term is defined in
Rule 144A under the Securities Act of 1933, as amended ("Rule 144A") because the
Transferee is part of a Family of Investment Companies (as defined below), is an
executive officer of the investment adviser (the "Adviser").

           2. The Transferee is a "qualified institutional buyer" as defined in
Rule 144A because (i) the Transferee is an investment company registered under
the Investment Company Act of 1940, and (ii) as marked below, the Transferee
alone owned and/or invested on a discretionary basis, or the Transferee's Family
of Investment Companies owned, at least $100,000,000 in securities (other than
the excluded securities referred to below) as of the end of the Transferee's
most recent fiscal year. For purposes of determining the amount of securities
owned by the Transferee or the Transferee's Family of Investment Companies, the
cost of such securities was used, unless the Transferee or any member of the
Transferee's Family of Investment Companies, as the case may be, reports its
securities holdings in its financial statements on the basis of their market
value, and no current information with respect to the cost of those securities
has been published, in which case the securities of such entity were valued at
market.

      ____ The Transferee owned and/or invested on a discretionary basis
           $___________________ in securities (other than the excluded
           securities referred to below) as of the end of the Transferee's most
           recent fiscal year (such amount being calculated in accordance with
           Rule 144A).

      ____ The Transferee is part of a Family of Investment Companies which
           owned in the aggregate $______________ in securities (other than the
           excluded securities referred to below) as of the end of the
           Transferee's most recent fiscal year (such amount being calculated in
           accordance with Rule 144A).

           3. The term "Family of Investment Companies" as used herein means two
or more registered investment companies (or series thereof) that have the same
investment adviser or investment advisers that are affiliated (by virtue of
being majority owned subsidiaries of the same parent or because one investment
adviser is a majority owned subsidiary of the other).

           4. The term "securities" as used herein does not include (i)
securities of issuers that are affiliated with the Transferee or are part of the
Transferee's Family of Investment Companies, (ii) bank deposit notes and
certificates of deposit, (iii) loan participations, (iv) repurchase agreements,
(v) securities owned but subject to a repurchase agreement and (vi) currency,
interest rate and commodity swaps. For purposes of determining the aggregate
amount of securities owned and/or invested on a discretionary basis by the
Transferee, or owned by the Transferee's Family of Investment Companies, the
securities referred to in this paragraph were excluded.

           5. The Transferee is familiar with Rule 144A and understands that the
Transferor and other parties related to the Transferred Certificates are relying
and will continue to rely on the statements made herein because one or more
sales to the Transferee will be in reliance on Rule 144A.

           ___ ___ Will the Transferee be purchasing the Transferred
           Yes No  Certificates only for the Transferee's own account?

           6. If the answer to the foregoing question is "no", then in each case
where the Transferee is purchasing for an account other than its own, such
account belongs to a third party that is itself a "qualified institutional
buyer" within the meaning of Rule 144A, and the "qualified institutional buyer"
status of such third party has been established by the Transferee through one or
more of the appropriate methods contemplated by Rule 144A.

           7. The undersigned will notify the parties to which this
certification is made of any changes in the information and conclusions herein.
Until such notice, the Transferee's purchase of the Transferred Certificates
will constitute a reaffirmation of this certification by the undersigned as of
the date of such purchase.

           8. Capitalized terms used but not defined herein have the respective
meanings ascribed thereto in the Pooling and Servicing Agreement pursuant to
which the Transferred Certificates were issued.

                               Print Name of Transferee or Adviser

                               By: _____________________________________________
                               Name: ___________________________________________
                               Title: __________________________________________

                               IF AN ADVISER:

                               Print Name of Transferee

                               Date: ___________________________________________

<PAGE>

                                  EXHIBIT F-2B

               FORM II OF TRANSFEREE CERTIFICATE FOR TRANSFERS OF
                NON-REGISTERED CERTIFICATES HELD IN PHYSICAL FORM

                                     [Date]

LaSalle Bank National Association
135 LaSalle Street, Suite 1625
Chicago, Illinois 60603
Attention: Global Securities and Trust Services, CSMC 2006-C4

[OR OTHER CERTIFICATE REGISTRAR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of
                  September 28, 2006 (the "Closing Date") of $__________]
                  [evidencing a ____% Percentage Interest in the related Class]
                  (the "Transferred Certificates")

Ladies and Gentlemen:

           This letter is delivered to you in connection with the transfer by
_______________________ (the "Transferor") to _______________________________
(the "Transferee") of the Transferred Certificates pursuant to Section 5.02 of
the Pooling and Servicing Agreement dated as of September 1, 2006 (the "Pooling
and Servicing Agreement"), among Credit Suisse First Boston Mortgage Securities
Corp., as depositor, KeyCorp Real Estate Capital Markets, Inc., as master
servicer (in such capacity, the "Master Servicer No. 1"), NCB, FSB, as master
servicer (in such capacity, the "Master Servicer No. 2"), LNR Partners, Inc., as
special servicer (in such capacity, the "Special Servicer No. 1"), National
Consumer Cooperative Bank as special servicer (in such capacity, the "Special
Servicer No. 2"), LaSalle Bank National Association, as certificate
administrator (in such capacity, the "Certificate Administrator") and paying
agent and Wells Fargo Bank, N.A., as trustee (the "Trustee"). All capitalized
terms used herein and not otherwise defined shall have the respective meanings
set forth in the Pooling and Servicing Agreement. The Transferee hereby
certifies, represents and warrants to you, as Certificate Registrar, that:

           1. Transferee is acquiring the Transferred Certificates for its own
account for investment and not with a view to or for sale or transfer in
connection with any distribution thereof, in whole or in part, in any manner
which would violate the Securities Act of 1933, as amended (the "Securities
Act"), or any applicable state securities laws.

           2. Transferee understands that (a) the Transferred Certificates have
not been and will not be registered under the Securities Act or registered or
qualified under any applicable state securities laws, (b) neither the Depositor
nor the Trustee is obligated so to register or qualify the Transferred
Certificates, and (c) neither the Transferred Certificates nor any security
issued in exchange therefor or in lieu thereof may be resold or transferred
unless it is (i) registered pursuant to the Securities Act and registered or
qualified pursuant to any applicable state securities laws or (ii) sold or
transferred in a transaction which is exempt from such registration and
qualification and the Certificate Registrar has received (A) a certificate from
the prospective transferor substantially in the form attached as Exhibit F-1A to
the Pooling and Servicing Agreement; (B) a certificate from the prospective
transferor substantially in the form attached as Exhibit F-1B to the Pooling and
Servicing Agreement and a certificate from the prospective transferee
substantially in the form attached either as Exhibit F-2A or as Exhibit F-2B to
the Pooling and Servicing Agreement; or (C) an Opinion of Counsel satisfactory
to the Certificate Registrar that the transfer may be made without registration
under the Securities Act, together with the written certification(s) as to the
facts surrounding the transfer from the prospective transferor and/or
prospective transferee upon which such Opinion of Counsel is based.

           3. The Transferee understands that it may not sell or otherwise
transfer the Transferred Certificates, any security issued in exchange therefor
or in lieu thereof or any interest in the foregoing except in compliance with
the provisions of Section 5.02 of the Pooling and Servicing Agreement, which
provisions it has carefully reviewed, and that the Transferred Certificates will
bear legends substantially to the following effect:

           THIS CERTIFICATE HAS NOT BEEN REGISTERED OR QUALIFIED UNDER THE
           SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR THE
           SECURITIES LAWS OF ANY STATE. ANY RESALE, PLEDGE, TRANSFER OR OTHER
           DISPOSITION OF THIS CERTIFICATE OR ANY INTEREST HEREIN WITHOUT SUCH
           REGISTRATION OR QUALIFICATION MAY BE MADE ONLY IN A TRANSACTION WHICH
           DOES NOT REQUIRE SUCH REGISTRATION OR QUALIFICATION AND WHICH IS IN
           ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND
           SERVICING AGREEMENT REFERRED TO HEREIN.

           NO TRANSFER OF THIS CERTIFICATE OR ANY INTEREST HEREIN MAY BE MADE TO
           (A) ANY RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT
           THAT IS SUBJECT TO THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
           1974, AS AMENDED ("ERISA"), OR SECTION 4975 OF THE INTERNAL REVENUE
           CODE OF 1986, AS AMENDED (THE "CODE"), OR ANY FEDERAL, STATE OR LOCAL
           LAW WHICH IS, TO A MATERIAL EXTENT, SIMILAR TO THE FOREGOING
           PROVISIONS OF ERISA OR THE CODE, OR (B) ANY PERSON WHO IS DIRECTLY OR
           INDIRECTLY PURCHASING THIS CERTIFICATE OR SUCH INTEREST HEREIN ON
           BEHALF OF, AS NAMED FIDUCIARY OF, AS TRUSTEE OF, OR WITH ASSETS OF
           ANY SUCH RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR
           ARRANGEMENT, EXCEPT IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02
           OF THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

           4. Neither the Transferee nor anyone acting on its behalf has (a)
offered, transferred, pledged, sold or otherwise disposed of any Transferred
Certificate, any interest in a Transferred Certificate or any other similar
security to any person in any manner, (b) solicited any offer to buy or accept a
transfer, pledge or other disposition of any Transferred Certificate, any
interest in a Transferred Certificate or any other similar security from any
person in any manner, (c) otherwise approached or negotiated with respect to any
Transferred Certificate, any interest in a Transferred Certificate or any other
similar security with any person in any manner, (d) made any general
solicitation by means of general advertising or in any other manner, or (e)
taken any other action, that (in the case of any of the acts described in
clauses (a) through (e) above) would constitute a distribution of the
Transferred Certificates under the Securities Act, would render the disposition
of the Transferred Certificates a violation of Section 5 of the Securities Act
or any state securities law or would require registration or qualification of
the Transferred Certificates pursuant thereto. The Transferee will not act, nor
has it authorized nor will it authorize any person to act, in any manner set
forth in the foregoing sentence with respect to the Transferred Certificates,
any interest in the Transferred Certificates or any other similar security.

           5. The Transferee has been furnished with all information regarding
(a) the Depositor, (b) the Transferred Certificates and distributions thereon,
(c) nature, performance and servicing of the Mortgage Loans, (d) the Pooling and
Servicing Agreement and the Trust Fund created pursuant thereto and (e) all
related matters, that it has requested.

           6. The Transferee is an "accredited investor" within the meaning of
paragraph (1), (2), (3) or (7) of Rule 501(a) under the Securities Act or an
entity in which all the equity owners come within such paragraphs and has such
knowledge and experience in financial and business matters as to be capable of
evaluating the merits and risks of an investment in the Transferred
Certificates; the Transferee has sought such accounting, legal and tax advice as
it has considered necessary to make an informed investment decision; and the
Transferee is able to bear the economic risks of such an investment and can
afford a complete loss of such investment.

           7. If the Transferee proposes that the Transferred Certificates be
registered in the name of a nominee, such nominee has completed the Nominee
Acknowledgment below.

                               Very truly yours,

                               By: ____________________________________________
                                       (Transferee)

                               Name:
                               Title:

                         Nominee Acknowledgment

           The undersigned hereby acknowledges and agrees that as to the
Transferred Certificates being registered in its name, the sole beneficial owner
thereof is and shall be the Transferee identified above, for whom the
undersigned is acting as nominee.

                               ________________________________________________
                               (Nominee)

                               By: ____________________________________________
                               Name:
                               Title:

<PAGE>

                                  EXHIBIT F-2C

                        FORM I OF TRANSFEREE CERTIFICATE
            FOR TRANSFERS OF INTERESTS IN NON-REGISTERED CERTIFICATES
                             HELD IN BOOK-ENTRY FORM

                                     [Date]

[TRANSFEROR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of
                  September 28, 2006 (the "Closing Date") of $__________] (the
                  "Transferred Certificates")

Ladies and Gentlemen:

           This letter is delivered to you in connection with the Transfer by
_________________ (the "Transferor") to _________________ (the "Transferee")
through our respective Depository Participants of the Transferor's beneficial
ownership interest (currently maintained on the books and records of The
Depository Trust Corporation ("DTC") and the Depository Participants) in the
Transferred Certificates. The Certificates, including the Transferred
Certificates, were issued pursuant to the Pooling and Servicing Agreement dated
as of September 1, 2006 (the "Pooling and Servicing Agreement"), among Credit
Suisse First Boston Mortgage Securities Corp., as depositor, KeyCorp Real Estate
Capital Markets, Inc., as master servicer (in such capacity, the "Master
Servicer No. 1"), NCB, FSB, as master servicer (in such capacity, the "Master
Servicer No. 2"), LNR Partners, Inc., as special servicer (in such capacity, the
"Special Servicer No. 1"), National Consumer Cooperative Bank as special
servicer (in such capacity, the "Special Servicer No. 2"), LaSalle Bank National
Association, as certificate administrator (in such capacity, the "Certificate
Administrator") and paying agent and Wells Fargo Bank, N.A., as trustee (the
"Trustee"). All capitalized terms used but not otherwise defined herein shall
have the respective meanings set forth in the Pooling and Servicing Agreement.
The Transferee hereby certifies, represents and warrants to and agrees with you,
and for the benefit of the Depositor, the Trustee, Certificate Administrator and
the Certificate Registrar, that:

           1. The Transferee is a "qualified institutional buyer" (a "Qualified
Institutional Buyer") as that term is defined in Rule 144A ("Rule 144A") under
the Securities Act of 1933, as amended (the "Securities Act") and has completed
one of the forms of certification to that effect attached hereto as Annex 1 and
Annex 2. The Transferee is aware that the Transfer to it of the Transferor's
interest in the Transferred Certificates is being made in reliance on Rule 144A.
The Transferee is acquiring such interest in the Transferred Certificates for
its own account or for the account of a Qualified Institutional Buyer.

           2. The Transferee understands that (a) the Transferred Certificates
have not been and will not be registered under the Securities Act or registered
or qualified under any applicable state securities laws, (b) neither the
Depositor nor the Trustee is obligated so to register or qualify the Transferred
Certificates, and (c) neither the Transferred Certificates nor any security
issued in exchange therefor or in lieu thereof may be resold or transferred
unless it is (i) registered pursuant to the Securities Act and registered or
qualified pursuant any applicable state securities laws or (ii) sold or
transferred in transactions which are exempt from such registration and
qualification.

           3. The Transferee understands that it may not sell or otherwise
transfer any Transferred Certificate, any security issued in exchange therefor
or in lieu thereof or any interest in the foregoing except in compliance with
the provisions of Section 5.02 of the Pooling and Servicing Agreement, which
provisions it has carefully reviewed, and that each Transferred Certificate will
bear the following legends:

           THIS CERTIFICATE HAS NOT BEEN REGISTERED OR QUALIFIED UNDER THE
           SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT") OR THE
           SECURITIES LAWS OF ANY STATE. ANY RESALE, PLEDGE, TRANSFER OR OTHER
           DISPOSITION OF THIS CERTIFICATE OR ANY INTEREST HEREIN WITHOUT SUCH
           REGISTRATION OR QUALIFICATION MAY BE MADE ONLY IN A TRANSACTION WHICH
           DOES NOT REQUIRE SUCH REGISTRATION OR QUALIFICATION AND WHICH IS IN
           ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND
           SERVICING AGREEMENT REFERRED TO HEREIN.

           NO TRANSFER OF THIS CERTIFICATE OR ANY INTEREST HEREIN MAY BE MADE TO
           (A) ANY RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT
           THAT IS SUBJECT TO THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
           1974, AS AMENDED ("ERISA"), OR SECTION 4975 OF THE INTERNAL REVENUE
           CODE OF 1986, AS AMENDED (THE "CODE"), OR ANY FEDERAL, STATE OR LOCAL
           LAW WHICH IS, TO A MATERIAL EXTENT, SIMILAR TO THE FOREGOING
           PROVISIONS OF ERISA OR THE CODE, OR (B) ANY PERSON WHO IS DIRECTLY OR
           INDIRECTLY PURCHASING THIS CERTIFICATE OR SUCH INTEREST HEREIN ON
           BEHALF OF, AS NAMED FIDUCIARY OF, AS TRUSTEE OF, OR WITH ASSETS OF
           ANY SUCH RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR
           ARRANGEMENT, EXCEPT IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02
           OF THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

                4. The Transferee has been furnished with all information
      regarding (a) the Depositor, (b) the Transferred Certificates and
      distributions thereon, (c) the nature, performance and servicing of the
      Mortgage Loans, (d) the Pooling and Servicing Agreement, and (e) all
      related matters, that it has requested.

                               Very truly yours,

                               (Transferee)

                               By: ____________________________________________
                                   Name:
                                   Title:

<PAGE>

                                                         ANNEX 1 TO EXHIBIT F-2C

            QUALIFIED INSTITUTIONAL BUYER STATUS UNDER SEC RULE 144A
          [for Transferees other than Registered Investment Companies]

           The undersigned hereby certifies as follows to [name of Transferor]
(the "Transferor") and for the benefit of Credit Suisse First Boston Mortgage
Securities Corp. with respect to the mortgage pass-through certificates being
transferred in book-entry form (the "Transferred Certificates") as described in
the Transferee Certificate to which this certification relates and to which this
certification is an Annex:

           1. As indicated below, the undersigned is the chief financial
officer, a person fulfilling an equivalent function, or other executive officer
of the entity acquiring interests in the Transferred Certificates (the
"Transferee").

           2. The Transferee is a "qualified institutional buyer" as that term
is defined in Rule 144A under the Securities Act of 1933, as amended ("Rule
144A") because (i) [the Transferee] [each of the Transferee's equity owners]
owned and/or invested on a discretionary basis $______________________(1) in
securities (other than the excluded securities referred to below) as of the end
of the Transferee's most recent fiscal year (such amount being calculated in
accordance with Rule 144A) and (ii) the Transferee satisfies the criteria in the
category marked below.

      ___  Corporation, etc. The Transferee is a corporation (other than a bank,
           savings and loan association or similar institution), Massachusetts
           or similar business trust, partnership, or any organization described
           in Section 501(c)(3) of the Internal Revenue Code of 1986.

      ___  Bank. The Transferee (a) is a national bank or a banking institution
           organized under the laws of any State, U.S. territory or the District
           of Columbia, the business of which is substantially confined to
           banking and is supervised by the State or territorial banking
           commission or similar official or is a foreign bank or equivalent
           institution, and (b) has an audited net worth of at least $25,000,000
           as demonstrated in its latest annual financial statements, a copy of
           which is attached hereto, as of a date not more than 16 months
           preceding the date of sale of the Transferred Certificates in the
           case of a U.S. bank, and not more than 18 months preceding such date
           of sale for a foreign bank or equivalent institution.

      ___  Savings and Loan. The Transferee (a) is a savings and loan
           association, building and loan association, cooperative bank,
           homestead association or similar institution, which is supervised and
           examined by a State or Federal authority having supervision over any
           such institutions or is a foreign savings and loan association or
           equivalent institution and (b) has an audited net worth of at least
           $25,000,000 as demonstrated in its latest annual financial
           statements, a copy of which is attached hereto, as of a date not more
           than 16 months preceding the date of sale of the Transferred
           Certificates in the case of a U.S. savings and loan association, and
           not more than 18 months preceding such date of sale in the case of a
           foreign savings and loan association or equivalent institution.

(1)   Transferee or each of its equity owners must own and/or invest on a
      discretionary basis at least $100,000,000 in securities unless Transferee
      or any such equity owner, as the case may be, is a dealer, and, in that
      case, Transferee or such equity owner, as the case may be, must own and/or
      invest on a discretionary basis at least $10,000,000 in securities.

      ___  Broker-dealer. The Transferee is a dealer registered pursuant to
           Section 15 of the Securities Exchange Act of 1934, as amended.

      ___  Insurance Company. The Transferee is an insurance company whose
           primary and predominant business activity is the writing of insurance
           or the reinsuring of risks underwritten by insurance companies and
           which is subject to supervision by the insurance commissioner or a
           similar official or agency of a State, U.S. territory or the District
           of Columbia.

      ___  State or Local Plan. The Transferee is a plan established and
           maintained by a State, its political subdivisions, or any agency or
           instrumentality of the State or its political subdivisions, for the
           benefit of its employees.

      ___  ERISA Plan. The Transferee is an employee benefit plan within the
           meaning of Title I of the Employee Retirement Income Security Act of
           1974.

      ___  Investment Advisor. The Transferee is an investment advisor
           registered under the Investment Advisers Act of 1940, as amended.

      ___  QIB Subsidiary. All of the Transferee's equity owners are "qualified
           institutional buyers" within the meaning of Rule 144A.

      ___  Other. (Please supply a brief description of the entity and a
           cross-reference to the paragraph and subparagraph under subsection
           (a)(1) of Rule 144A pursuant to which it qualifies. Note that
           registered investment companies should complete Annex 2 rather than
           this Annex 1.)

           3. For purposes of determining the aggregate amount of securities
owned and/or invested on a discretionary basis by the Transferee, the Transferee
did not include (i) securities of issuers that are affiliated with such Person,
(ii) securities that are part of an unsold allotment to or subscription by such
Person, if such Person is a dealer, (iii) bank deposit notes and certificates of
deposit, (iv) loan participations, (v) repurchase agreements, (vi) securities
owned but subject to a repurchase agreement and (vii) currency, interest rate
and commodity swaps.

           4. For purposes of determining the aggregate amount of securities
owned and/or invested on a discretionary basis by any such Person, the
Transferee used the cost of such securities to such Person, unless such Person
reports its securities holdings in its financial statements on the basis of
their market value, and no current information with respect to the cost of those
securities has been published, in which case the securities were valued at
market. Further, in determining such aggregate amount, the Transferee may have
included securities owned by subsidiaries of such Person, but only if such
subsidiaries are consolidated with such Person in its financial statements
prepared in accordance with generally accepted accounting principles and if the
investments of such subsidiaries are managed under such Person's direction.
However, such securities were not included if such Person is a majority-owned,
consolidated subsidiary of another enterprise and such Person is not itself a
reporting company under the Securities Exchange Act of 1934, as amended.

           5. The Transferee acknowledges that it is familiar with Rule 144A and
understands that the Transferor and other parties related to the Transferred
Certificates are relying and will continue to rely on the statements made herein
because one or more Transfers to the Transferee may be in reliance on Rule 144A.

           ____ ____ Will the Transferee be acquiring interests in the
           Yes  No   Transferred Certificates only for the Transferee's own
                     account?

           6. If the answer to the foregoing question is "no", then in each case
where the Transferee is acquiring any interest in the Transferred Certificates
for an account other than its own, such account belongs to a third party that is
itself a "qualified institutional buyer" within the meaning of Rule 144A, and
the "qualified institutional buyer" status of such third party has been
established by the Transferee through one or more of the appropriate methods
contemplated by Rule 144A.

           7. The Transferee will notify each of the parties to which this
certification is made of any changes in the information and conclusions herein.
Until such notice is given, the Transferee's acquisition of any interest in of
the Transferred Certificates will constitute a reaffirmation of this
certification as of the date of such acquisition. In addition, if the Transferee
is a bank or savings and loan as provided above, the Transferee agrees that it
will furnish to such parties any updated annual financial statements that become
available on or before the date of such acquisition, promptly after they become
available.

           8. Capitalized terms used but not defined herein have the meanings
ascribed thereto in the Pooling and Servicing Agreement pursuant to which the
Transferred Certificates were issued.

                               (Transferee)

                               By: _____________________________________________
                               Name:
                               Title:
                               Date:

<PAGE>

                                                         ANNEX 2 TO EXHIBIT F-2C

            QUALIFIED INSTITUTIONAL BUYER STATUS UNDER SEC RULE 144A
           [for Transferees that are Registered Investment Companies]

           The undersigned hereby certifies as follows to [name of Transferor]
(the "Transferor") and for the benefit of Credit Suisse First Boston Mortgage
Securities Corp. with respect to the mortgage pass-through certificates being
transferred in book-entry form (the "Transferred Certificates") as described in
the Transferee Certificate to which this certification relates and to which this
certification is an Annex:

           1. As indicated below, the undersigned is the chief financial
officer, a person fulfilling an equivalent function, or other executive officer
of the entity acquiring interests in the Transferred Certificates (the
"Transferee") or, if the Transferee is a "qualified institutional buyer" as that
term is defined in Rule 144A under the Securities Act of 1933, as amended ("Rule
144A") because the Transferee is part of a Family of Investment Companies (as
defined below), is an executive officer of the investment adviser (the
"Adviser").

           2. The Transferee is a "qualified institutional buyer" as defined in
Rule 144A because (i) the Transferee is an investment company registered under
the Investment Company Act of 1940, as amended, and (ii) as marked below, the
Transferee alone owned and/or invested on a discretionary basis, or the
Transferee's Family of Investment Companies owned, at least $100,000,000 in
securities (other than the excluded securities referred to below) as of the end
of the Transferee's most recent fiscal year. For purposes of determining the
amount of securities owned by the Transferee or the Transferee's Family of
Investment Companies, the cost of such securities was used, unless the
Transferee or any member of the Transferee's Family of Investment Companies, as
the case may be, reports its securities holdings in its financial statements on
the basis of their market value, and no current information with respect to the
cost of those securities has been published, in which case the securities of
such entity were valued at market.

      ____ The Transferee owned and/or invested on a discretionary basis
           $___________________ in securities (other than the excluded
           securities referred to below) as of the end of the Transferee's most
           recent fiscal year (such amount being calculated in accordance with
           Rule 144A).

      ____ The Transferee is part of a Family of Investment Companies which
           owned in the aggregate $______________ in securities (other than the
           excluded securities referred to below) as of the end of the
           Transferee's most recent fiscal year (such amount being calculated in
           accordance with Rule 144A).

           3. The term "Family of Investment Companies" as used herein means two
or more registered investment companies (or series thereof) that have the same
investment adviser or investment advisers that are affiliated (by virtue of
being majority owned subsidiaries of the same parent or because one investment
adviser is a majority owned subsidiary of the other).

           4. The term "securities" as used herein does not include (i)
securities of issuers that are affiliated with the Transferee or are part of the
Transferee's Family of Investment Companies, (ii) bank deposit notes and
certificates of deposit, (iii) loan participations, (iv) repurchase agreements,
(v) securities owned but subject to a repurchase agreement and (vi) currency,
interest rate and commodity swaps. For purposes of determining the aggregate
amount of securities owned and/or invested on a discretionary basis by the
Transferee, or owned by the Transferee's Family of Investment Companies, the
securities referred to in this paragraph were excluded.

           5. The Transferee is familiar with Rule 144A and understands that the
Transferor and other parties related to the Transferred Certificates are relying
and will continue to rely on the statements made herein because one or more
Transfers to the Transferee will be in reliance on Rule 144A.

           ____ ____  Will the Transferee be acquiring interests in the
           Yes  No    Transferred Certificates only for the Transferee's own
                      account?

           6. If the answer to the foregoing question is "no", then in each case
where the Transferee is acquiring any interest in the Transferred Certificates
for an account other than its own, such account belongs to a third party that is
itself a "qualified institutional buyer" within the meaning of Rule 144A, and
the "qualified institutional buyer" status of such third party has been
established by the Transferee through one or more of the appropriate methods
contemplated by Rule 144A.

           7. The undersigned will notify the parties to which this
certification is made of any changes in the information and conclusions herein.
Until such notice, the Transferee's acquisition of any interest in the
Transferred Certificates will constitute a reaffirmation of this certification
by the undersigned as of the date of such acquisition.

           8. Capitalized terms used but not defined herein have the meanings
ascribed thereto in the Pooling and Servicing Agreement pursuant to which the
Transferred Certificates were issued.

                               (Transferee or Adviser)

                               By: _____________________________________________
                               Name:
                               Title:

                               IF AN ADVISER:

                               _________________________________________________
                               Print Name of Transferee

                               Date:

<PAGE>

                                  EXHIBIT F-2D

                      FORM II OF TRANSFEREE CERTIFICATE FOR
              TRANSFERS OF INTERESTS IN NON-REGISTERED CERTIFICATES
                             HELD IN BOOK-ENTRY FORM

                                     [Date]

[TRANSFEROR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of
                  September 28, 2006 (the "Closing Date") of $__________] (the
                  "Transferred Certificates")

Ladies and Gentlemen:

           This letter is delivered to you in connection with the Transfer by
_________________ (the "Transferor") to _________________ (the "Transferee")
through our respective Depository Participants of the Transferor's beneficial
ownership interest (currently maintained on the books and records of The
Depository Trust Corporation ("DTC") and the Depository Participants) in the
Transferred Certificates. The Certificates, including the Transferred
Certificates, were issued pursuant to the Pooling and Servicing Agreement dated
as of September 1, 2006 (the "Pooling and Servicing Agreement"), among Credit
Suisse First Boston Mortgage Securities Corp., as depositor, KeyCorp Real Estate
Capital Markets, Inc., as master servicer (in such capacity, the "Master
Servicer No. 1"), NCB, FSB, as master servicer (in such capacity, the "Master
Servicer No. 2"), LNR Partners, Inc., as special servicer (in such capacity, the
"Special Servicer No. 1"), National Consumer Cooperative Bank as special
servicer (in such capacity, the "Special Servicer No. 2"), LaSalle Bank National
Association, as certificate administrator (in such capacity, the "Certificate
Administrator") and paying agent and Wells Fargo Bank, N.A., as trustee (the
"Trustee"). All capitalized terms used but not otherwise defined herein shall
have the respective meanings set forth in the Pooling and Servicing Agreement.
The Transferee hereby certifies, represents and warrants to and agrees with you,
and for the benefit of the Depositor, the Trustee, the Certificate Administrator
and the Certificate Registrar, that:

           1. The Transferee is not a United States Securities Person. For
purposes of this certification, "United States Securities Person" means (i) any
natural person resident in the United States, (ii) any partnership or
corporation organized or incorporated under the laws of the United States; (iii)
any estate of which any executor or administrator is a United States Securities
Person, other than any estate of which any professional fiduciary acting as
executor or administrator is a United States Securities Person if an executor or
administrator of the estate who is not a United States Securities Person has
sole or shared investment discretion with respect to the assets of the estate
and the estate is governed by foreign law, (iv) any trust of which any trustee
is a United States Securities Person, other than a trust of which any
professional fiduciary acting as trustee is a United States Securities Person if
a trustee who is not a United States Securities Person has sole or shared
investment discretion with respect to the trust assets and no beneficiary of the
trust (and so settler if the trust is revocable) is a United States Securities
Person, (v) any agency or branch of a foreign entity located in the United
States, unless the agency or branch operates for valid business reasons and is
engaged in the business of insurance or banking and is subject to substantive
insurance or banking regulation, respectively, in the jurisdiction where
located, (vi) any non-discretionary account or similar account (other than an
estate or trust) held by a dealer or other fiduciary for the benefit or account
of a United States Securities Person, (vii) any discretionary account or similar
account (other than an estate or trust) held by a dealer or other fiduciary
organized, incorporated or (if an individual) resident in the United States,
other than one held for the benefit or account of a non-United States Securities
Person by a dealer or other professional fiduciary organized, incorporated or
(if any individual) resident in the United States, (viii) any partnership or
corporation if (a) organized or incorporated under the laws of any foreign
jurisdiction and (b) formed by a United States Securities Person principally for
the purpose of investing in securities not registered under the Securities Act,
unless it is organized or incorporated, and owned, by "accredited investors" (as
defined in Rule 501(a)) under the United States Securities Act of 1933, as
amended (the "Securities Act"), who are not natural persons, estates or trusts;
provided, however, that the International Monetary Fund, the International Bank
for Reconstruction and Development, the Inter-American Development Bank, the
Asian Development Bank, the African Development Bank, the United Nations and
their agencies, affiliates and pension plans, any other similar international
organization, their agencies, affiliates and pension plans shall not constitute
United States Securities Persons.

           2. The Transferee understands that (a) the Transferred Certificates
have not been and will not be registered under the Securities Act or registered
or qualified under any applicable state securities laws, (b) neither the
Depositor nor the Trustee is obligated so to register or qualify the Transferred
Certificates, and (c) neither the Transferred Certificates nor any security
issued in exchange therefor or in lieu thereof may be resold or transferred
unless it is (i) registered pursuant to the Securities Act and registered or
qualified pursuant any applicable state securities laws, or (ii) is sold or
transferred in transactions which are exempt from such registration and
qualification.

           3. The Transferee understands that it may not sell or otherwise
transfer any Transferred Certificate, any security issued in exchange therefor
or in lieu thereof or any interest in the foregoing except in compliance with
the provisions of Section 5.02 of the Pooling and Servicing Agreement, which
provisions it has carefully reviewed, and that each Transferred Certificate will
bear the following legends:

           THIS CERTIFICATE HAS NOT BEEN REGISTERED OR QUALIFIED UNDER THE
           SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT") OR THE
           SECURITIES LAWS OF ANY STATE. ANY RESALE, PLEDGE, TRANSFER OR OTHER
           DISPOSITION OF THIS CERTIFICATE OR ANY INTEREST HEREIN WITHOUT SUCH
           REGISTRATION OR QUALIFICATION MAY BE MADE ONLY IN A TRANSACTION WHICH
           DOES NOT REQUIRE SUCH REGISTRATION OR QUALIFICATION AND WHICH IS IN
           ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND
           SERVICING AGREEMENT REFERRED TO HEREIN.

           NO TRANSFER OF THIS CERTIFICATE OR ANY INTEREST HEREIN MAY BE MADE TO
           (A) ANY RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR ARRANGEMENT
           THAT IS SUBJECT TO THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
           1974, AS AMENDED ("ERISA"), OR SECTION 4975 OF THE INTERNAL REVENUE
           CODE OF 1986, AS AMENDED (THE "CODE"), OR ANY FEDERAL, STATE OR LOCAL
           LAW WHICH IS, TO A MATERIAL EXTENT, SIMILAR TO THE FOREGOING
           PROVISIONS OF ERISA OR THE CODE, OR (B) ANY PERSON WHO IS DIRECTLY OR
           INDIRECTLY PURCHASING THIS CERTIFICATE OR SUCH INTEREST HEREIN ON
           BEHALF OF, AS NAMED FIDUCIARY OF, AS TRUSTEE OF, OR WITH ASSETS OF
           ANY SUCH RETIREMENT PLAN OR OTHER EMPLOYEE BENEFIT PLAN OR
           ARRANGEMENT, EXCEPT IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02
           OF THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

           We understand that this certification is required in connection with
certain securities laws of the United States. In connection therewith, if
administrative or legal proceedings are commenced or threatened in connection
with which this certification is or would be relevant, we irrevocably authorized
you to produce this certification to any interested party in such proceedings.

Dated: __________, ____

                               By: _____________________________________________
                               As, or agent for, the beneficial owner(s) of the
                               Certificates to which this certificate relates

<PAGE>

                                   EXHIBIT G-1

             FORM OF TRANSFEREE CERTIFICATE IN CONNECTION WITH ERISA
              (NON-REGISTERED CERTIFICATES AND NON-INVESTMENT GRADE
            CERTIFICATES HELD IN FULLY REGISTERED, CERTIFICATED FORM)

                                     [Date]

LaSalle Bank National Association
135 LaSalle Street, Suite 1625
Chicago, Illinois 60603
Attention: Global Securities and Trust Services, CSMC 2006-C4

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of
                  September 28, 2006 (the "Closing Date") of $__________]
                  [evidencing a ____% Percentage Interest in the related Class]
                  (the "Transferred Certificates")

Ladies and Gentlemen:

           This letter is delivered to you in connection with the transfer by
_________________ (the "Transferor") to _________________ (the "Transferee") of
the Transferred Certificates pursuant to Section 5.02 of the Pooling and
Servicing Agreement dated as of September 1, 2006 (the "Pooling and Servicing
Agreement"), among Credit Suisse First Boston Mortgage Securities Corp., as
depositor, KeyCorp Real Estate Capital Markets, Inc., as master servicer (in
such capacity, the "Master Servicer No. 1"), NCB, FSB, as master servicer (in
such capacity, the "Master Servicer No. 2"), LNR Partners, Inc., as special
servicer (in such capacity, the "Special Servicer No. 1"), National Consumer
Cooperative Bank as special servicer (in such capacity, the "Special Servicer
No. 2"), LaSalle Bank National Association, as certificate administrator (in
such capacity, the "Certificate Administrator") and paying agent and Wells Fargo
Bank, N.A., as trustee (the "Trustee"). All capitalized terms used but not
otherwise defined herein shall have the respective meanings set forth in the
Pooling and Servicing Agreement. The Transferee hereby certifies, represents and
warrants to you as Certificate Registrar, as follows (check the applicable
paragraph):

      ___  The Transferee is neither (A) a retirement plan or other employee
           benefit plan or arrangement, including an individual retirement
           account or annuity, a Keogh plan or a collective investment fund or
           separate account in which such plans, accounts or arrangements are
           invested, including an insurance company general account, that is
           subject to ERISA or Section 4975 of the Code (each, a "Plan") (or a
           governmental plan subject to any federal, state or local law
           materially similar to Section 406 or 407 of ERISA or Section 4975 of
           the Code (a "Similar Law"), nor (B) a Person who is directly or
           indirectly purchasing the Transferred Certificates on behalf of, as
           named fiduciary of, as trustee of, or with assets of a Plan or a
           governmental plan subject to Similar Law; or

      ___  Except in the case of the Class R or Class V Certificates, the
           Transferee is using funds from an insurance company general account
           to acquire the Transferred Certificates; however, the purchase and
           holding of such Certificates by such Person is exempt from the
           prohibited transaction provisions of Section 406 of ERISA and Section
           4975 of the Code by reason of Sections I and III of Prohibited
           Transaction Class Exemption 95-60: or

      ___  The Transferee is, or is acting on behalf of, a governmental plan and
           certifies that the purchase and holding of the Transferred
           Certificates by or on behalf of such governmental plan will not
           result in a violation of, or imposition of tax under, such Similar
           Law; or

      ___  The Transferred Certificates are Class ___ Certificates, an interest
           in which is being acquired by or on behalf of a Plan in reliance on
           the individual prohibited transaction exemption issued by the U.S.
           Department of Labor to Credit Suisse Securities (USA) LLC (PTE
           89-90), and such Plan (X) is an accredited investor as defined in
           Rule 501(a)(1) of Regulation D of the Securities Act, (Y) is not
           sponsored (within the meaning of Section 3(16)(B) of ERISA) by the
           Trustee, the Certificate Administrator, the Depositor, any Mortgage
           Loan Seller, any Master Servicer, either Special Servicers, any
           Exemption-Favored Party, any Primary Servicer, any Sub-Servicer or
           any Borrower with respect to any Trust Mortgage Loan or group of
           Trust Mortgage Loans that represents more than 5% of the aggregate
           unamortized principal balance of the Trust Mortgage Loans determined
           on the date of the initial issuance of the Certificates, or by an
           Affiliate of any such Person, and (Z) agrees that it will obtain from
           each of its Transferees to which it transfers an interest in the
           Transferred Certificates, a written representation that such
           Transferee, if a Plan, satisfies the requirements of the immediately
           preceding clauses (X) and (Y), together with a written agreement that
           such Transferee will obtain from each of its Transferees that are
           Plans a similar written representation regarding satisfaction of the
           requirements of the immediately preceding clauses (X) and (Y).

                               Very truly yours,

                               _________________________________________________
                               (Transferee)

                               By: _____________________________________________
                                   Name: _______________________________________
                                   Title: ______________________________________

<PAGE>

                                   EXHIBIT G-2

             FORM OF TRANSFEREE CERTIFICATE IN CONNECTION WITH ERISA
              (NON-REGISTERED CERTIFICATES HELD IN BOOK ENTRY FORM)

                                     [Date]

[TRANSFEROR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of
                  September 28, 2006 (the "Closing Date") of $__________]
                  [evidencing a ____% Percentage Interest in the related Class]
                  (the "Transferred Certificates")

Ladies and Gentlemen:

           This letter is delivered to you in connection with the Transfer by
______________________ (the "Transferor") to _________________ (the
"Transferee") through our respective Depository Participants of the Transferor's
beneficial ownership interest (currently maintained on the books and records of
The Depository Trust Corporation ("DTC") and the Depository Participants) in the
Transferred Certificates. The Certificates, including the Transferred
Certificates, were issued pursuant to the Pooling and Servicing Agreement dated
as of September 1, 2006 (the "Pooling and Servicing Agreement"), among Credit
Suisse First Boston Mortgage Securities Corp., as depositor, KeyCorp Real Estate
Capital Markets, Inc., as master servicer (in such capacity, the "Master
Servicer No. 1"), NCB, FSB, as master servicer (in such capacity, the "Master
Servicer No. 2"), LNR Partners, Inc., as special servicer (in such capacity, the
"Special Servicer No. 1"), National Consumer Cooperative Bank as special
servicer (in such capacity, the "Special Servicer No. 2"), LaSalle Bank National
Association, as certificate administrator (in such capacity, the "Certificate
Administrator") and paying agent and Wells Fargo Bank, N.A., as trustee (the
"Trustee"). All capitalized terms used but not otherwise defined herein shall
have the respective meanings set forth in the Pooling and Servicing Agreement.
The Transferee hereby certifies, represents and warrants to you as follows
(check the applicable paragraph):

      ___  The Transferee is neither (A) a retirement plan, an employee benefit
           plan or other retirement arrangement, including an individual
           retirement account or annuity, a Keogh plan or a collective
           investment fund or separate account in which such plans, accounts or
           arrangements are invested, including an insurance company general
           account, that is subject to Section 406 of ERISA or Section 4975 of
           the Code (each, a "Plan") (or a governmental plan subject to any
           federal, state or local law materially similar to Section 406 or 407
           of ERISA or Section 4975 of the Code (a "Similar Law"), nor (B) a
           Person who is directly or indirectly purchasing an interest in the
           Transferred Certificates on behalf of, as named fiduciary of, as
           trustee of, or with assets of, a Plan or a governmental plan subject
           to Similar Law; or

      ___  The Transferee is using funds from an insurance company general
           account to acquire an interest in the Transferred Certificates;
           however, the purchase and holding of such interest by such Person is
           exempt from the prohibited transaction provisions of Section 406 of
           ERISA and Section 4975 of the Code by reason of Sections I and III of
           Prohibited Transaction Class Exemption 95-60; or

      ___  The Transferee is, or is acting on behalf of, a governmental plan and
           certifies that the purchase and holding of the Transferred
           Certificates by or on behalf of such governmental plan will not
           result in a violation of, or imposition of tax under, such Similar
           Law; or

      ___  The Transferred Certificates are Class ____ Certificates, an interest
           in which is being acquired by or on behalf of a Plan in reliance on
           the individual prohibited transaction exemption issued by the U.S.
           Department of Labor to Credit Suisse Securities (USA) LLC (PTE
           89-90), and such Plan (X) is an accredited investor as defined in
           Rule 501(a)(1) of Regulation D of the Securities Act, (Y) is not
           sponsored (within the meaning of Section 3(16)(B) of ERISA) by the
           Trustee, the Certificate Administrator, the Depositor, any Mortgage
           Loan Seller, any Master Servicer, either Special Servicer, any
           Exemption-Favored Party, any Primary Servicer, any Sub-Servicer or
           any Borrower with respect to any Trust Mortgage Loan or group of
           Trust Mortgage Loans that represents more than 5% of the aggregate
           unamortized principal balance of the Trust Mortgage Loans determined
           on the date of the initial issuance of the Certificates, or by an
           Affiliate of any such Person, and (Z) agrees that it will obtain from
           each of its Transferees to which it transfers an interest in the
           Transferred Certificates, a written representation that such
           Transferee, if a Plan, satisfies the requirements of the immediately
           preceding clauses (X) and (Y), together with a written agreement that
           such Transferee will obtain from each of its Transferees that are
           Plans a similar written representation regarding satisfaction of the
           requirements of the immediately preceding clauses (X) and (Y).

                               _________________________________________________
                               (Transferee)

                               By: _____________________________________________
                                   Name:
                                   Title:

<PAGE>

                                   EXHIBIT H-1

                       FORM OF RESIDUAL TRANSFER AFFIDAVIT
                      FOR TRANSFERS OF CLASS R CERTIFICATES

STATE OF                  )
                          ) ss:
COUNTY OF                 )

           ____________________, being first duly sworn, deposes and
says that:

           1. He/She is the ____________________ of ____________________ (the
prospective transferee (the "Transferee") of Credit Suisse First Boston Mortgage
Securities Corp., Commercial Mortgage Pass-Through Certificates, Series 2006-C4,
Class R Certificates, evidencing a ___% Percentage Interest in such Class (the
"Residual Interest Certificates")), a _________________ duly organized and
validly existing under the laws of ____________________, on behalf of which
he/she makes this affidavit. All capitalized terms used but not otherwise
defined herein shall have the respective meanings set forth in the Pooling and
Servicing Agreement pursuant to which the Residual Interest Certificates were
issued (the "Pooling and Servicing Agreement").

           2. The Transferee (i) is, and as of the date of transfer will be, a
Permitted Transferee and will endeavor to remain a Permitted Transferee for so
long as it holds the Residual Certificates, and (ii) is acquiring the Residual
Certificates for its own account or for the account of another prospective
transferee from which it has received an affidavit in substantially the same
form as this affidavit. A "Permitted Transferee" is any Person other than a
Disqualified Organization, a possession of the United States, Non-United States
Tax Person, domestic partnership whose beneficial interests are not all held by
United States Persons (as defined below) or a foreign permanent establishment or
fixed based (each within the meaning of an applicable tax treaty) of a United
States Person. (For this purpose, a "Disqualified Organization" means the United
States, any state or political subdivision thereof, any agency or
instrumentality of any of the foregoing (other than an instrumentality, all of
the activities of which are subject to tax and, except for the Freddie Mac, a
majority of whose board of directors is not selected by any such governmental
entity) or any foreign government, international organization or any agency or
instrumentality of such foreign government or organization, any rural electric
or telephone cooperative, or any organization (other than certain farmers'
cooperatives) that is generally exempt from federal income tax unless such
organization is subject to the tax on unrelated business taxable income).

           3. The Transferee is aware (i) of the tax that would be imposed under
the Code on transfers of the Residual Interest Certificates to non-Permitted
Transferees; (ii) that such tax would be on the transferor or, if such transfer
is through an agent (which Person includes a broker, nominee or middleman) for a
non-Permitted Transferee, on the agent; (iii) that the Person otherwise liable
for the tax shall be relieved of liability for the tax if the transferee
furnishes to such Person an affidavit that the transferee is a Permitted
Transferee and, at the time of transfer, such Person does not have actual
knowledge that the affidavit is false; and (iv) that the Residual Interest
Certificates may be a "noneconomic residual interest" within the meaning of
Treasury regulation Section 1.860E-1(c) and that the transferor of a noneconomic
residual interest will remain liable for any taxes due with respect to the
income on such residual interest, unless no significant purpose of the transfer
is to enable the transferor to impede the assessment or collection of tax.

           4. The Transferee is aware of the tax imposed on a "pass-through
entity" holding the Residual Interest Certificates if at any time during the
taxable year of the pass-through entity a non-Permitted Transferee is the record
holder of an interest in such entity. (For this purpose, a "pass-through entity"
includes a regulated investment company, a real estate investment trust or
common trust fund, a partnership, trust or estate, and certain cooperatives.)

           5. The Transferee is aware that the Certificate Registrar will not
register any transfer of the Residual Interest Certificates by the Transferee
unless the Transferee's transferee, or such transferee's agent, delivers to the
Certificate Registrar, among other things, an affidavit in substantially the
same form as this affidavit. The Transferee expressly agrees that it will not
consummate any such transfer if it knows or believes that any representation
contained in such affidavit is false.

           6. The Transferee consents to any additional restrictions or
arrangements that shall be deemed necessary upon advice of counsel to constitute
a reasonable arrangement to ensure that the Residual Interest Certificates will
only be owned, directly or indirectly, by a Permitted Transferee. In addition,
the Transferee will honor all the restrictions set forth herein upon any
subsequent transfers of the Class R Certificates.

           7. The Transferee's taxpayer identification number is
________________.

           8. The Transferee has reviewed the provisions of Section 5.02(d) of
the Pooling and Servicing Agreement, a description of which provisions is set
forth in the Residual Interest Certificates (in particular, clause (ii) of
Section 5.02(d) which authorizes the Certificate Administrator to deliver
payments on the Residual Interest Certificates to a Person other than the
Transferee and negotiate a mandatory sale of the Residual Interest Certificates,
in either case, in the event that the Transferee holds such Residual Interest
Certificates in violation of Section 5.02(d)); and the Transferee expressly
agrees to be bound by and to comply with such provisions.

           9. No purpose of the Transferee relating to its purchase or any sale
of the Residual Certificates is or will be to impede the assessment or
collection of any tax.

           10. Check the applicable paragraph:

                The present value of the anticipated tax liabilities associated
with holding the Class R Certificate, as applicable, does not exceed the sum of:

            (i)   the present value of any consideration given to the Transferee
                  to acquire such Class R Certificate;

            (ii)  the present value of the expected future distributions on such
                  Certificate; and

            (iii) the present value of the anticipated tax savings associated
                  with holding such Certificate as the related REMIC generates
                  losses.

For purposes of this calculation, (i) the Transferee is assumed to pay tax at
the highest rate currently specified in Section 11(b) of the Code (but the tax
rate in Section 55(b)(1)(B) of the Code may be used in lieu of the highest rate
specified in Section 11(b) of the Code if the Transferee has been subject to the
alternative minimum tax under Section 55 of the Code in the preceding two years
and will compute its taxable income in the current taxable year using the
alternative minimum tax rate) and (ii) present values are computed using a
discount rate equal to the short-term Federal rate prescribed by Section 1274(d)
of the Code for the month of the transfer and the compounding period used by the
Transferee.

                The transfer of the Class R Certificate complies with U.S.
Treasury Regulations Sections 1.860E-1(c)(5) and (6) and, accordingly,

            (i)   the Transferee is an "eligible corporation," as defined in
                  U.S. Treasury Regulations Section 1.860E-1(c)(6)(i), as to
                  which income from Class R Certificate will only be taxed in
                  the United States;

            (ii)  at the time of the transfer, and at the close of the
                  Transferee's two fiscal years preceding the year of the
                  transfer, the Transferee had gross assets for financial
                  reporting purposes (excluding any obligation of a person
                  related to the Transferee within the meaning of U.S. Treasury
                  Regulation Section 1.860E-1(c)(c)(ii)) in excess of $100
                  million and net assets in excess of $10 million;

            (iii) the Transferee will transfer the Class R Certificate only to
                  another "eligible corporation," as defined in U.S. Treasury
                  Regulation Section 1.860E-1(c)(6)(i), in a transaction that
                  satisfies the requirements of Sections 1.860E-1(c)(4)(i), (ii)
                  and (iii) and 1.860E-1(c)(5); and

            (iv)  the Transferee determined the consideration paid to it to
                  acquire the Class R Certificate based on reasonable market
                  assumptions (including, but not limited to, borrowing and
                  investment rates, prepayment and loss assumptions, expense and
                  reinvestment assumptions, tax rates and other factors specific
                  to the Transferee) that it has determined in good faith.

                  None of the above.

           11. The Transferee will not cause the income from the Residual
Interest Certificate to be attributed to a foreign permanent establishment or
fixed base (within the meaning of an applicable income tax treaty) of the
Transferee or any other United States Person.

           12. The Transferee has historically paid its debts as they have come
due and intends to pay its debt as they come due in the future. The Transferee
further represents to and for the benefit of the transferor that the Transferee
intends to pay any taxes associated with holding the Residual Interest
Certificates as they become due, fully understanding that it may incur tax
liabilities in excess of any cash flows generated by the Residual Certificates.

           For purposes of this affidavit, a "United States Person" is a citizen
or resident of the United States, a corporation, partnership (except to the
extent provided in applicable Treasury regulations), or other entity (including
any entity treated as a corporation or partnership for federal income tax
purposes) created or organized in, or under the laws of, the United States, any
State or the District of Columbia, or an estate whose income is includible in
gross income for United States federal income tax purposes regardless of its
source, or a trust if a court within the United States is able to exercise
primary supervision over the administration of the trust and one or more United
States Tax Persons have the authority to control all substantial decisions of
the trust, all within the meaning of Section 7701(a)(30) of the Code (including
certain trusts in existence on August 20, 1996 that are eligible to elect to be
treated as United States Tax Persons).

<PAGE>

           IN WITNESS WHEREOF, the Transferee has caused this
instrument to be executed on its behalf, pursuant to the authority of
its Board of Directors, by its ____________________ and its corporate
seal to be hereunto attached, attested by its [Assistant] Secretary,
this ______ day of ______________.

                               [TRANSFEREE]

                               By: _____________________________________________
                               [Name of Officer]
                               [Title of Officer]

[Corporate Seal]

ATTEST:

__________________________________
[Assistant] Secretary

           Personally appeared before me the above-named ____________________,
known or proved to me to be the same person who executed the foregoing
instrument and to be the ____________________ of the Transferee, and
acknowledged to me that he/she executed the same as his/her free act and deed
and the free act and deed of the Transferee

           Subscribed and sworn before me this ______ day of
__________________, ________.

_____________________________
NOTARY PUBLIC

COUNTY OF  ____________________

STATE OF ______________________

My Commission expires the _________ day of ___________, 20__.

<PAGE>

                                   EXHIBIT H-2

                 FORM OF TRANSFEROR CERTIFICATE FOR TRANSFERS OF
                              CLASS R CERTIFICATES

                                     [Date]

LaSalle Bank National Association
135 LaSalle Street, Suite 1625
Chicago, Illinois 60603
Attention: Global Securities and Trust Services, CSMC 2006-C4

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4,
                  Class R Certificates, evidencing a ____% Percentage Interest
                  in such Class (the "Residual Interest Certificates")

Ladies and Gentlemen:

           This letter is delivered to you in connection with the transfer by
_________________ (the "Transferor") to _________________ (the "Transferee") of
the Residual Interest Certificates, pursuant to the Pooling and Servicing
Agreement dated as of September 1, 2006 (the "Pooling and Servicing Agreement"),
among Credit Suisse First Boston Mortgage Securities Corp., as depositor,
KeyCorp Real Estate Capital Markets, Inc., as master servicer (in such capacity,
the "Master Servicer No. 1"), NCB, FSB, as master servicer (in such capacity,
the "Master Servicer No. 2"), LNR Partners, Inc., as special servicer (in such
capacity, the "Special Servicer No. 1"), National Consumer Cooperative Bank as
special servicer (in such capacity, the "Special Servicer No. 2"), LaSalle Bank
National Association, as certificate administrator (in such capacity, the
"Certificate Administrator") and paying agent and Wells Fargo Bank, N.A., as
trustee (the "Trustee"). All capitalized terms used but not otherwise defined
herein shall have the respective meanings set forth in the Pooling and Servicing
Agreement. The Transferor hereby certifies, represents and warrants to you, as
Certificate Registrar, that:

           1. No purpose of the Transferor relating to the transfer of the
Residual Interest Certificates by the Transferor to the Transferee is or will be
to impede the assessment or collection of any tax.

           2. The Transferor understands that the Transferee has delivered to
you a Transfer Affidavit in the form attached to the Pooling and Servicing
Agreement as Exhibit H-1. The Transferor does not know or believe that any
representation contained therein is false.

           3. The Transferor has at the time of this transfer conducted a
reasonable investigation of the financial condition of the Transferee (or the
beneficial owners of the Transferee if the Transferee is classified as a
partnership under the Code) as contemplated by Treasury regulation Section
1.860E-1(c)(4)(i) and, as a result of that investigation, the Transferor has
determined that the Transferee has historically paid its debts as they became
due and has found no significant evidence to indicate that the Transferee will
not continue to pay its debts as they become due in the future. The Transferor
understands that the transfer of the Residual Interest Certificates may not be
respected for United States income tax purposes (and the Transferor may continue
to be liable for United States income taxes associated therewith) unless the
Transferor has conducted such an investigation.

                               Very truly yours,

                               [TRANSFEROR]

                               By: _____________________________________________
                               (Transferor)
                               Name:
                               Title:

<PAGE>

                                    EXHIBIT I

               FORM OF ACKNOWLEDGMENT OF PROPOSED SPECIAL SERVICER

                                     [Date]

[TRUSTEE]
[CERTIFICATE ADMINISTRATOR]
[MASTER SERVICER]
[SPECIAL SERVICER]
[DEPOSITOR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4

Ladies and Gentlemen:

           Pursuant to Section 7.01(c) of the Pooling and Servicing
Agreement, dated as of September 1, 2006, relating to Credit Suisse
First Boston Mortgage Securities Corp., Commercial Mortgage
Pass-Through Certificates, Series 2006-C4 (the "Agreement"), the
undersigned hereby agrees with all the other parties to the Agreement
that the undersigned shall serve as Special Servicer under, and as
defined in, the Agreement. The undersigned hereby acknowledges and
agrees that, as of the date hereof, it is and shall be a party to the
Agreement and bound thereby to the full extent indicated therein in the
capacity of Special Servicer. The undersigned hereby makes, as of the
date hereof, the representations and warranties set forth in Section
3.24 of the Agreement, with the following corrections with respect to
type of entity and jurisdiction of organization: ____________________.

                                    By: _________________________________
                                    Name:
                                    Title:

<PAGE>

                                    EXHIBIT J

                           FORM OF LOST NOTE AFFIDAVIT

STATE OF             )
                     )  ss.:
COUNTY OF            )

           ______________________________________,______________________, being
duly sworn, deposes and says:

           1. that he/she is an authorized signatory of
_________________________ (the "Noteholder");

           2. that the Noteholder is the owner and holder of a mortgage loan in
the original principal amount of $____________________ secured by a mortgage
(the "Mortgage") on the premises known as
________________________________________, located in

           3. that the Noteholder, after having conducted a diligent
investigation of its records and files, has been unable to locate the following
original note and believes that said original note has been lost, misfiled,
misplaced or destroyed due to a clerical error:

           a note in the original sum of $___________ made by
_____________________, to __________________________, under date of
___________ (the "Note");

           4. that the Note is now owned and held by the Noteholder;

           5. that the copy of the Note attached hereto is a true and correct
copy thereof;

           6. that the Note has not been paid-off, satisfied, assigned,
transferred, encumbered, endorsed, pledged, hypothecated, or otherwise disposed
of and that the original Note has been either lost, misfiled, misplaced or
destroyed;

           7. that no other person, firm, corporation or other entity has any
right, title, interest or claim in the Note except the Noteholder; and

           7. upon assignment of the Note by the Noteholder to Credit Suisse
First Boston Mortgage Securities Corp. (the "Depositor" or the "Purchaser") and
subsequent assignment by the Depositor to Wells Fargo Bank, N.A., as trustee,
(the "Trustee") for the benefit of the holders of the Credit Suisse First Boston
Mortgage Securities Corp. Commercial Mortgage Pass-Through Certificates, Series
2006-C4 (which assignment may, at the discretion of the Depositor, be made
directly by the Noteholder to the Trustee), the Noteholder covenants and agrees
(a) to promptly deliver to the Trustee the original Note if it is subsequently
found, and (b) to indemnify and hold harmless the Trustee and its successors and
assigns from and against any and all costs, expenses and monetary losses arising
as a result of the Noteholder's or the Depositor's failure to deliver said
original Note to the Trustee.

                               NAME OF NOTEHOLDER

                               By: _____________________________________________
                                   Authorized Signatory

Sworn to before me this
_______  day of ____________, 20__

<PAGE>

                                    EXHIBIT K

                      SCHEDULE OF DESIGNATED SUB-SERVICERS

                          Capstone Realty Advisors, LLC
                         Churchill Mortgage Corporation
                          NorthMarq Capital Group, Inc.
                          Bernard Financial Corporation
                        Draper and Kramer, Incoroporated

<PAGE>

                                   EXHIBIT L-1

                      FORM OF DEPOSITOR CERTIFICATION TO BE

                             PROVIDED WITH FORM 10-K

            Re:   Credit Suisse Commercial Mortgage Trust 2006-C4 (the "Trust"),
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4

           I, [identify the certifying individual], a [title] of Credit Suisse
First Boston Mortgage Securities Corp., the depositor into the above-referenced
Trust, certify that:

           1. I have reviewed this annual report on Form 10-K, and all reports
      Form 10-D required to be filed in respect of periods included in the year
      covered by this annual report, of the Trust;

           2. Based on my knowledge, the Exchange Act periodic reports, taken as
      a whole, does not contain any untrue statement of a material fact or omit
      to state a material fact necessary to make the statements made, in light
      of the circumstances under which such statements were made, not misleading
      with respect to the period covered by this annual report;

           3. Based on my knowledge, all of the distribution, servicing and
      other information required to be provided under Form 10-D for the period
      covered by this report is included in the Exchange Act periodic reports;

           4. Based on my knowledge and the servicer compliance statements
      required in this report under Item 1123 of Regulation AB, and except as
      disclosed in the Exchange Act periodic report, the servicers have
      fulfilled their obligations under the pooling and servicing agreement; and

           5. All of the reports on assessment of compliance with servicing
      criteria for asset-backed securities and their related attestation reports
      on assessment of compliance with servicing criteria for asset-backed
      securities required to be included in this report in accordance with Item
      1122 of Regulation AB and Exchange Act Rules 13a-18 and 15d-18 have been
      included as an exhibit to this report, except as otherwise disclosed in
      this report. Any material instances of noncompliance described in such
      reports have been disclosed in this report on Form 10-K.

<PAGE>

In giving the certifications above, I have reasonably relied on information
provided to me by the following unaffiliated parties: KeyCorp Real Estate
Capital Markets, Inc., NCB, FSB, LNR Partners, Inc., National Consumer
Cooperative Bank, LaSalle Bank National Association, and Wells Fargo Bank, N.A.

Date: _____________________________

___________________________________
President and Chief Executive Officer
Credit Suisse First Boston Mortgage Securities Corp.

<PAGE>

                                   EXHIBIT L-2

             FORM OF CERTIFICATE ADMINISTRATOR BACKUP CERTIFICATION

                  Re:   Credit Suisse Commercial Mortgage Trust 2006-C4 (the
                        "Trust"), Commercial Mortgage Pass-Through Certificates,
                        Series 2006-C4

The undersigned, __________, a __________ of LASALLE BANK NATIONAL ASSOCIATION,
on behalf of LASALLE BANK NATIONAL ASSOCIATION, as Certificate Administrator
(the "Certificate Administrator"), under that certain pooling and servicing
agreement, dated as of September 1, 2006, (the "Pooling and Servicing
Agreement") entered into by Credit Suisse First Boston Mortgage Securities
Corp., (the "Depositor"), KeyCorp Real Estate Capital Markets, Inc., as master
servicer ("Master Servicer No. 1"), NCB, FSB, as master servicer ("Master
Servicer No. 2" and collectively with Master Servicer No. 1, the "Master
Servicers"), LNR Partners, Inc., as special servicer ("Special Servicer No. 1"),
National Consumer Cooperative Bank, as special servicer ("Special Servicer No.
2" and collectively with Special Servicer No. 1, the "Special Servicers"), Wells
Fargo Bank, N.A., as trustee (in such capacity, the "Trustee") and the
Certificate Administrator, certify to [_______], the Depositor and its officers,
directors and affiliates, to the extent that the following information is within
our normal area of responsibilities and duties under the Pooling and Servicing
Agreement, and with the knowledge and intent that they will rely upon this
certification, that:

      1.    I have reviewed the annual report on Form 10-K for the fiscal year
            [20___] (the "Annual Report"), and all reports on Form 10-D
            containing statements to certificateholders filed in respect of
            periods included in the year covered by the Annual Report
            (collectively with the Annual Report, the "Reports"), of the Trust;

      2.    Based on my knowledge, the information in the Reports, to the extent
            prepared by the Certificate Administrator (but not including any
            information provided to the Certificate Administrator by the Master
            Servicers or the Special Servicers, other than to the extent that
            such information has been aggregated or manipulated by Certificate
            Administrator), taken as a whole, do not contain any untrue
            statement of a material fact or omit to state a material fact
            necessary to make the statements made, in light of the circumstances
            under which such statements were made, not misleading with respect
            to the last day of the period covered by the Annual Report; and

      3.    Based on my knowledge, all of the distribution information required
            to be provided by the Certificate Administrator under the Pooling
            and Servicing Agreement for inclusion in the Reports is included in
            the Reports.

                                       2
<PAGE>

Date: _________________________

LASALLE BANK NATIONAL ASSOCIATION

_______________________________
[Signature]
[Title]

<PAGE>

                                   EXHIBIT L-3

                  FORM OF MASTER SERVICER BACKUP CERTIFICATION

            Re:   Credit Suisse Commercial Mortgage Trust 2006-C4 (the "Trust"),
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4

I, [identify the certifying individual], a [_______________] of [KEYCORP REAL
ESTATE CAPITAL MARKETS, INC., an Ohio corporation, ("Master Servicer No.
1")][NCB, FSB, a federal savings bank, ("Master Servicer No. 2")] as [Master
Servicer No. 1][Master Servicer No. 2] under that certain pooling and servicing
agreement dated as of September 1, 2006 (the "Pooling and Servicing Agreement"),
among Credit Suisse First Boston Mortgage Securities Corp., as depositor (the
"Depositor"), KeyCorp Real Estate Capital Markets, Inc., as master servicer
("Master Servicer No. 1"), NCB, FSB, as master servicer ("Master Servicer No. 2"
and collectively with Master Servicer No. 1, the "Master Servicers"), LNR
Partners, Inc., as special servicer ("Special Servicer No. 1"), National
Consumer Cooperative Bank, as special servicer ("Special Servicer No. 2" and
collectively with Special Servicer No. 1, the "Special Servicers"), LaSalle Bank
National Association, as certificate administrator (in such capacity, the
"Certificate Administrator"), and Wells Fargo Bank, N.A., as trustee (the
"Trustee"), on behalf of [Master Servicer No. 1][Master Servicer No. 2], certify
to [Name of Certifying Person(s) for Sarbanes Oxley Certification], the
Depositor, and its officers, directors and affiliates, and with the knowledge
and intent that they will rely upon this certification, that:

      1.    Based on my knowledge, with respect to the period ending December
            31, 20[__] (the "Relevant Period"), and assuming (a) the accuracy of
            the statements required to be made by each Special Servicer in the
            special servicer backup certificate delivered by each Special
            Servicer relating to the Relevant Period and (b) that the
            information regarding the Loans, the Borrowers and the Mortgaged
            Properties in the Prospectus Supplement does not contain any untrue
            statement of a material fact or omit to state a material fact
            necessary to make the statement made, in light of the circumstances
            under which such statements were made, not misleading, all servicing
            information and all reports required to be submitted by [Master
            Servicer No. 1][Master Servicer No. 2] to the Certificate
            Administrator pursuant to Sections 3.12(a) and 3.12(c) of the
            Pooling and Servicing Agreement (the "Servicer Reports") for
            inclusion in the annual report on Form 10-K for the Relevant Period
            and inclusion in all reports on Form 8-K have been submitted by
            [Master Servicer No. 1][Master Servicer No. 2] to the Certificate
            Administrator for inclusion in these reports;

      2.    Based on my knowledge, and assuming the accuracy of the statements
            required to be made by each Special Servicer in the special servicer
            backup certificate delivered by each Special Servicer relating to
            the Relevant Period, the information contained in the Servicer
            Reports, taken as a whole, does not contain any untrue statement of
            a material fact or omit to state a material fact necessary to make
            the statements made, in light of the circumstances under which such
            statements were made, not misleading with respect to the Relevant
            Period; and

      3.    Based on my knowledge and the compliance review conducted in
            preparing the annual compliance statement required under Section
            11.12 of the Pooling and Servicing Agreement, during the Relevant
            Period [Master Servicer No. 1][Master Servicer No. 2] has fulfilled
            its obligations under the Pooling and Servicing Agreement in all
            material respects, except as disclosed in the annual officer's
            certificate required under such Section 11.11.

[In giving the certification above, I have reasonably relied on information
provided to me by the following unaffiliated parties: [name(s) of servicer,
sub-servicer or co-servicer] and, notwithstanding the foregoing certifications,
neither I nor the Master Servicer makes any certification under the foregoing
clauses (2) and (3) with respect to the information in the Servicing Reports
that is in turn dependent upon information provided by the Special Servicer
under the Pooling and Servicing Agreement]

Date: _________________________

[KEYCORP REAL ESTATE CAPITAL MARKETS, INC.]

By: _____________________________
    Name:
    Title:

[NCB, FSB]

By: _____________________________
    Name:
    Title:

<PAGE>

                                   EXHIBIT L-4

                  FORM OF SPECIAL SERVICER BACKUP CERTIFICATION

            Re:   Credit Suisse Commercial Mortgage Trust 2006-C4 (the "Trust"),
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4

I, [identify the certifying individual], a [_______________ ] of [LNR PARTNERS,
INC. ("Special Servicer No. 1")][NATIONAL CONSUMER COOPERATIVE BANK ("Special
Servicer No. 2")] as [Special Servicer No. 1][Special Servicer No. 2] under that
certain pooling and servicing agreement dated as of September 1, 2006 (the
"Pooling and Servicing Agreement"), among Credit Suisse First Boston Mortgage
Securities Corp., as depositor (the "Depositor"), KeyCorp Real Estate Capital
Markets, Inc., as master servicer ("Master Servicer No. 1"), NCB, FSB, as master
servicer ("Master Servicer No. 2" and collectively with Master Servicer No. 1,
the "Master Servicers"), LNR Partners, Inc., as special servicer ("Special
Servicer No. 1"), National Consumer Cooperative Bank, as special servicer
("Special Servicer No. 2" and collectively with Special Servicer No. 1, the
"Special Servicers"), LaSalle Bank National Association, as certificate
administrator (in such capacity, the "Certificate Administrator"), and Wells
Fargo Bank, N.A., as trustee (the "Trustee"), on behalf of [Special Servicer No.
1][Special Servicer No. 2] certify to [Name of Certifying Person(s) for Sarbanes
Oxley Certification], the Depositor, and its officers, directors and affiliates,
and with the knowledge and intent that they will rely upon this certification,
that:

      1.    Based on my knowledge, with respect to the period ending December
            31, 20[__] (the "Relevant Period"), all servicing information and
            all required reports required to be submitted by [Special Servicer
            No. 1][Special Servicer No. 2] to the applicable Master Servicer or
            the Certificate Administrator pursuant to the Pooling and Servicing
            Agreement (the "Special Servicer Reports") for inclusion in the
            annual report on Form 10-K for the Relevant Period and inclusion in
            all reports on Form 8-K have been submitted by [Special Servicer No.
            1][Special Servicer No. 2] to the applicable Master Servicer or the
            Certificate Administrator, as applicable, for inclusion in these
            reports;

      2.    Based on my knowledge, the information contained in the Special
            Servicer Reports, taken as a whole, does not contain any untrue
            statement of a material fact or omit to state a material fact
            necessary to make the statements made, in light of the circumstances
            under which such statements were made, not misleading as of the last
            day of the period ending December 31, 20[__]; and

      3.    Based on my knowledge and the annual compliance review required
            under Section 11.11 of the Pooling and Servicing Agreement, during
            the Relevant Period [Special Servicer No. 1][Special Servicer No. 2]
            has fulfilled its obligations under the Pooling and Servicing
            Agreement in all material respects, except as disclosed in the
            annual officer's certificate required under such Section 11.11.

Date: _________________________

[LNR PARTNERS, INC.]

By:_____________________________
Name:
Title:

[NATIONAL CONSUMER COOPERATIVE BANK]

By:_____________________________
Name:
Title:

<PAGE>

                                    EXHIBIT M

                           LIST OF BROKER STRIP LOANS

Loan No.:  Loan Name:             Broker Strip:     Payee:
---------  ----------             -------------     ------

<PAGE>

                                    EXHIBIT N

                                    RESERVED

<PAGE>

                                    EXHIBIT O

                        FORM OF CUSTODIAL CERTIFICATATION

                                     [Date]

[DEPOSITOR]

[MASTER SERVICER]         MORTGAGE LOAN SELLERS

[SPECIAL SERVICER]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2006-C4

Ladies and Gentlemen:

           Pursuant to Section 2.02(b) of the Pooling and Servicing Agreement
dated as of September 1, 2006 and related to the above-referenced Certificates
(the "Agreement"), Wells Fargo Bank, N.A. as trustee (the "Trustee"), hereby
certifies as to each Trust Mortgage Loan subject to the Agreement (except as
specifically identified in the exception report attached hereto) that: (i) all
documents specified in clauses (i) through (v), (ix), (xi), (xii), (xvi) and
(xviii) of the definition of "Mortgage File" are in its possession, and (ii) all
such Mortgage Loan Documents have been received, have been executed, appear to
be what they purport to be, purport to be recorded or filed (if recordation or
filing is specified for such document in the definition of "Mortgage File") and
have not been torn, mutilated or otherwise defaced, and that such documents
relate to the Trust Mortgage Loans identified on the Trust Mortgage Loan
Schedule.

           Other than as stipulated in the Agreement, none of the Trustee, the
Master Servicers, the Special Servicers, or any Custodian (a) is under any duty
or obligation to inspect, review or examine any of the documents, instruments,
certificates or other papers relating to the Trust Mortgage Loans delivered to
it to determine that the same are valid, legal, effective, genuine, binding,
enforceable, sufficient or appropriate for the represented purpose or that they
are other than what they purport to be on their face and (b) shall have any
responsibility for determining whether the text of any assignment or endorsement
is in proper or recordable form, whether the requisite recording of any document
is in accordance with the requirements of any applicable jurisdiction, or
whether a blanket assignment is permitted in any applicable jurisdiction.

           In performing the reviews contemplated by Sections 2.02(a) and
2.02(b) of the Agreement, the Trustee may conclusively rely on the purported
genuineness of any such document and any signature thereon. It is understood
that the scope of the Trustee's review of the Mortgage Files is limited solely
to confirming that the documents specified in clauses (i) through (v), (ix),
(xi), (xii), (xvi) and (xviii) and have been received and such additional
information as will be necessary for delivering the certifications required by
the Agreement.

           Further, with respect to UCC filings, absent actual knowledge or
copies of UCC filings in the Mortgage File indicating otherwise, the Trustee
shall make the assumptions contemplated by Section 2.02(c) of the Agreement.

           Capitalized terms used herein and not otherwise defined shall have
the respective meanings assigned to them in the Agreement.

                                  Respectfully,

                                  WELLS FARGO BANK, N.A.
                                  as Trustee

                                  By: __________________________________________
                                  Name:
                                  Title:

<PAGE>

                                    EXHIBIT P

              FORM OF NOTICE REGARDING DEFEASANCE OF MORTGAGE LOAN

   For loans not among ten largest and having a principal balance of less than
             (a) $20,000,000 and (b) 5% of outstanding pool balance

To: Standard & Poor's Ratings Services
55 Water Street
New York, New York 10041
Attn: Commercial Mortgage Surveillance

From: _________, in its capacity as Servicer No.[__] (the "Servicer") under the
Pooling and Servicing Agreement dated as of September 1, 2006 (the "Pooling and
Servicing Agreement"), among the Servicer, Wells Fargo Bank, N.A. as Trustee,
and others.

                         Date: _________, 20___

            Re:   Commercial Mortgage Pass-Through Certificates, Series 2006-C4
                  Mortgage Loan (the "Mortgage Loan") heretofore secured by real
                  property known as __________.

           Capitalized terms used but not defined herein have the
meanings assigned to such terms in the Pooling and Servicing Agreement.
[Note: all terms in this notice should be conformed to terms used in
the Pooling and Servicing Agreement]

           THE STATEMENTS SET FORTH BELOW ARE MADE (A) TO THE BEST KNOWLEDGE OF
THE UNDERSIGNED BASED UPON DUE DILIGENCE CONSISTENT WITH THE SERVICING STANDARD
SPECIFIED IN THE POOLING AND SERVICING AGREEMENT (THE "SERVICING STANDARD"), AND
(B) WITHOUT INTENDING TO WARRANT THE ACCURACY THEREOF OR UNDERTAKE ANY DUTY OR
STANDARD OF CARE GREATER THAN THE DUTIES OF SERVICER UNDER THE POOLING AND
SERVICING AGREEMENT AND THE SERVICING STANDARD

           We hereby notify you and confirm that each of the following is true,
subject to those exceptions, if any, set forth on Exhibit A hereto, which
exceptions the applicable Master Servicer has determined, consistent with the
Servicing Standard, will have no material adverse effect on the Mortgage Loan or
the defeasance transaction:

                1. The related borrower (the "Borrower") has consummated a
      defeasance of the Mortgage Loan of the type checked below:

      ____ a full defeasance of the entire outstanding principal balance
           ($___________) of the Mortgage Loan; or

      ____ a partial defeasance of a portion ($__________) of the Mortgage Loan
           that represents ___% of the entire principal balance of the Mortgage
           Loan ($________);

           2. The defeasance was consummated on __________, 20__.

           3. The defeasance was completed in all material respects in
accordance with the conditions for defeasance specified in the Loan Documents
and in accordance with the Servicing Standard.

           4. The defeasance collateral consists only of one or more of the
following: (i) direct debt obligations of the U.S. Treasury, (ii) direct debt
obligations of the Federal National Mortgage Association, (iii) direct debt
obligations of the Federal Home Loan Mortgage Corporation, or (iv) interest-only
direct debt obligations of the Resolution Funding Corporation. Such defeasance
collateral consists of securities that (i) if they include a principal
obligation, the principal due at maturity cannot vary or change, (ii) provide
for interest at a fixed rate and (iii) are not subject to prepayment, call or
early redemption.

           5. After the defeasance, the defeasance collateral will be owned by
an entity (the "Defeasance Obligor") that: (i) is the original Borrower, (ii) is
a Single-Purpose Entity (as defined in the S&P Criteria), (iii) is subject to
restrictions in its organizational documents substantially similar to those
contained in the organizational documents of the original Borrower with respect
to bankruptcy remoteness and single purpose, (iv) has been designated as the
Defeasance Obligor by the originator of the Mortgage Loan pursuant to the terms
of the Mortgage Loan Documents, or (v) has delivered a letter from S&P
confirming that the organizational documents of such Defeasance Obligor were
previously approved by S&P. The Defeasance Obligor owns no assets other than
defeasance collateral and (only in the case of the original Borrower) real
property securing one or more Mortgage Loans included in the pool under the
Pooling and Servicing Agreement (the "Pool").

           6. If such Defeasance Obligor (together with its affiliates) holds
more than one defeased loan, it does not (together with its affiliates) hold
defeased loans aggregating more than $20 million or more than five percent (5%)
of the aggregate certificate balance of the Certificates as of the date of the
most recent Statement to Certificateholders received by the Servicer (the
"Current Report").

           7. The defeasance documents require that the defeasance collateral be
credited to an eligible account (as defined in the S&P Criteria) that must be
maintained as a securities account by a securities intermediary that is at all
times an Eligible Institution (as defined in the S&P Criteria). The securities
intermediary may reinvest proceeds of the defeasance collateral only in
Permitted Investments (as defined in the Pooling and Servicing Agreement).

           8. The securities intermediary is obligated to pay from the proceeds
of the defeasance collateral, directly to the Servicer's collection account, all
scheduled payments on the Mortgage Loan or, in a partial defeasance, not less
than 125% of the portion of such scheduled payments attributed to the allocated
loan amount for the real property defeased (the "Scheduled Payments").

           9. The applicable Master Servicer received written confirmation from
an independent certified public accountant stating that (i) revenues from the
defeasance collateral (without taking into account any earnings on reinvestment
of such revenues) will be sufficient to timely pay each of the Scheduled
Payments including the payment in full of the Mortgage Loan (or the allocated
portion thereof in connection with a partial defeasance) on its Maturity Date
(or, in the case of an ARD Loan, on its Anticipated Repayment Date), (ii) the
revenues received in any month from the defeasance collateral will be applied to
make Scheduled Payments within four (4) months after the date of receipt, (iii)
the defeasance collateral is not subject to prepayment, call or early
redemption, and (iv) interest income from the defeasance collateral to the
Defeasance Obligor in any tax year will not exceed such Defeasance Obligor's
interest expense for the Mortgage Loan (or the allocated portion thereof in a
partial defeasance) for such year, other than in the year in which the Maturity
Date or Anticipated Repayment Date will occur, when interest income will exceed
interest expense.

           10. The applicable Master Servicer received opinions of counsel that,
subject to customary qualifications, (i) the defeasance will not cause any Trust
REMIC to fail to qualify as a REMIC for purpose of the Code, (ii) the agreements
executed by the Borrower and the Defeasance Obligor in connection with the
defeasance are enforceable against them in accordance with their terms, and
(iii) the Trustee will have a perfected, first priority security interest in the
defeasance collateral.

           11. The agreements executed in connection with the defeasance (i)
prohibit subordinate liens against the defeasance collateral, (ii) provide for
payment from sources other than the defeasance collateral of all fees and
expenses of the securities intermediary for administering the defeasance and the
securities account and all fees and expenses of maintaining the existence of the
Defeasance Obligor, (iii) permit release of surplus defeasance collateral and
earnings on reinvestment to the Defeasance Obligor only after the Mortgage Loan
has been paid in full, (iv) include representations and/or covenants of the
Borrower and/or securities intermediary substantially as set forth on Exhibit B
hereto, (v) provide for survival of such representations; and (vi) do not permit
waiver of such representations and covenants.

           12. The outstanding principal balance of the Mortgage Loan
immediately before the defeasance was less than $20,000,000 and less than 5% of
the aggregate certificate balance of the Certificates as of the date of the
Current Report. The Mortgage Loan is not one of the ten (10) largest loans in
the Pool.

           13. Copies of all material agreements, instruments, organizational
documents, opinions of counsel, accountant's report and other items delivered in
connection with the defeasance will be provided to you upon request.

           14. The individual executing this notice is an authorized officer or
a servicing officer of the Servicer.

           IN WITNESS WHEREOF, the applicable Master Servicer has caused this
notice to be executed as of the date captioned above.

                                  [APPLICABLE MASTER SERVICER]

                                    By:
                                    ----------------------------------------
                                    Name:
                                    Title:

<PAGE>

                               EXHIBIT A

<PAGE>

                                    EXHIBIT B

                   Perfected Security Interest Representations

General:

           1. [The defeasance agreements] create a valid and continuing security
interest (as defined in the applicable UCC) in the [name specified accounts] in
favor of the [Secured Party], which security interest is prior to all other
[Liens], and is enforceable as such as against creditors of and purchasers from
[Debtor].

           Note that "Collateral" means securities, permitted investments and
other assets credited to securities accounts.

           2. The [Deposit Account], constitutes a "deposit account" within the
meaning of the applicable UCC.

           3. All of the [Collateral] has been and will have been credited to a
[Securities Account]. The securities intermediary for the [Securities Account]
has agreed to treat all assets credited to the [Securities Account] as
"financial assets" within the meaning of the UCC.

Creation:

           4. [Debtor] owns and has good and marketable title to the
[Collateral, Securities Account and Deposit Account] free and clear of any
[Lien], claim or encumbrance of any Person.

           5. [Debtor] has received all consents and approvals required by the
terms of the [Collateral] to the transfer to the [Secured Party] of its interest
and rights in the [Collateral] hereunder.

Perfection:

           6. [Debtor] has caused or will have caused, within ten (10) days, the
filing of all appropriate financing statements in the proper filing office in
the appropriate jurisdictions under applicable law in order to perfect the
security interest granted in the [Collateral, Securities Account and Deposit
Account] to the [Secured Party] hereunder.

           7. [Debtor] has delivered to[Secured Party] a fully executed
agreement pursuant to which the securities intermediary or the account bank has
agreed to comply with all instructions originated by the [Secured Party]
relating to the [Securities Account] or directing disposition of the funds in
the [Deposit Account] without further consent by the [Debtor].

           8. [Debtor] has taken all steps _necessary to cause the securities
intermediary to identify in its records the [Secured Party] as the person:
having a security entitlement against the securities intermediary in the
[Securities Account].

           9. [Debtor] has taken all steps necessary to cause [Secured Party] to
become the account holder of the [Deposit Account].

Priority:

           10. Other than the security interest granted to the [Secured Party]
pursuant to this Agreement, [Debtor] has not pledged, assigned, sold, granted a
security interest in, or otherwise conveyed any of the [Collateral, Securities
Account and Deposit Account]. [Debtor] has not authorized the filing of and is
not aware of any financing statements against [Debtor] that include a
description of collateral covering the [Collateral, Securities Account and
Deposit Account] other than any financing statement relating to the security
interest granted to the [Secured Party] hereunder or that has been terminated.
Debtor is not aware of any judgment or tax lien filings against [Debtor].

           11. The [Securities Account and Deposit Account] are not in the name
of any person other than the [Debtor] or the [Secured Party]. The [Debtor] has
not consented to the securities intermediary of any [Securities Account] or the
account bank of any [Deposit Account] to comply with entitlement orders or
instructions of any person other than the [Secured Party].

<PAGE>

                                    EXHIBIT Q

                 FORM OF SUBORDINATION AGREEMENT OF CO-OP LOANS

           THIS Agreement made this _____ day of ___, 20__, between [_______], a
____________ having an address at __________ (the "Subordinate Mortgagee"), and
___________, a ___________, having an office at ____________ (the "Superior
Mortgagee").

                              W I T N E S S E T H:

           WHEREAS, Superior Mortgagee is the owner of a certain $__________
mortgage and note secured thereby, dated ________ __, ____, made by
__________________________________ (the "Borrower") to Subordinate Mortgagee
(the "Superior Mortgage") covering the premises located at
____________________________________________ more particularly described in the
Superior Mortgage and Schedule "A" attached hereto (the "Premises"); and

           WHEREAS, Subordinate Mortgagee is the holder of a certain
$____________ mortgage and the note secured thereby, dated ________ __, ____,
made by the Borrower to Subordinate Mortgagee (the "Subordinate Mortgage")
covering the Premises; and

           WHEREAS, the Superior Mortgagee has purchased the Superior Mortgage
from Subordinate Mortgagee and as a condition thereto has required that the
Subordinate Mortgage be fully subordinated to the Superior Mortgage.

           NOW, THEREFORE, the parties hereto agree as follows:

           The Subordinate Mortgagee hereby covenants and agrees that (i) the
Subordinate Mortgage and all of its terms and provisions and the loan it secures
are and shall remain in all respects subject and subordinate to the Superior
Mortgage, its lien and all of its terms and provisions and to the loan it
secures and to any modifications, consolidations, extension or renewals thereof
and to any increases therein resulting from advances to protect or preserve the
lien of the Superior Mortgage on the Premises encumbered thereby but not any
other increases therein; (ii) no tenant under any lease of any portion of the
Premises, other than tenant shareholders under proprietary leases, will be made
a party defendant in any foreclosure of the Subordinate Mortgage, nor will any
other action be taken in connection with such foreclosure which would have the
effect of terminating any such lease; (iii) no portion of the accounts, accounts
receivable, rents, issues and profits of the Premises shall be collected in
connection with the foreclosure of the Subordinate Mortgage or any other
enforcement action except through a receiver appointed by the court in which
such foreclosure action is brought, after due notice of the application of the
appointment of such receiver shall have been given to the Superior Mortgagee;
(iv) the accounts, accounts receivable, rents, issues and profits collected by
any such receiver (or which shall under any circumstances come into possession
of the holder of the Subordinate Mortgage at a time when Subordinate Mortgagee
has received written notice of a default under the Superior Mortgage) shall be
applied, at Superior Mortgagee's direction, to the payment of taxes, maintenance
and operating charges and disbursements incurred in connection with the
operation and maintenance of the Premises and to the payment of principal,
interest and other amounts due under the Superior Mortgage at the time of such
application, in such order and priority as Superior Mortgagee shall direct,
before any portion of such accounts, accounts receivable, rents, issues and
profits shall be applied to the Subordinate Mortgage; (v) during the pendency of
any such foreclosure action, if an action shall be brought for the foreclosure
of the Superior Mortgage and an application shall be made for an extension of
such receivership for the benefit of the Superior Mortgagee, the Subordinate
Mortgagee shall consent to the extension of such receivership and all accounts,
accounts receivable, rents, issues and profits held by such receiver as of the
date of such application shall be applied by the receiver solely for the benefit
of the Superior Mortgagee, and the Subordinate Mortgagee in their respective
order of priority; (vi) due notice of the commencement of any foreclosure of the
Subordinate Mortgage shall be given to the Superior Mortgagee and true copies of
all papers served or entered in such action will be delivered to the Superior
Mortgagee upon such service or entry; (vii) no payments shall be made to the
holder of the Subordinate Mortgage during the period in which any default exists
under the Superior Mortgage in respect of any monthly payment or balloon payment
due thereunder beyond any applicable grace period, provided that the Subordinate
Mortgagee has received written notice of such default and all payments otherwise
payable to the Subordinate Mortgagee during such period shall be paid to the
Superior Mortgagee and, if any such payments are received by the Subordinate
Mortgagee at any time after which the Subordinate Mortgagee has received written
notice of the existence of such default, they shall be held in trust for the
Superior Mortgagee and turned over to the Superior Mortgagee on demand; (viii)
any distributions made or to be made to the Subordinate Mortgagee pursuant to
any bankruptcy or insolvency proceeding of the borrower representing amounts due
under the Superior Mortgage shall be paid by the borrower, or, if such payments
are nonetheless received by the Subordinate Mortgagee, by the Subordinate
Mortgagee immediately upon their receipt, to the Superior Mortgagee for
application, at Superior Mortgagee's direction, to the payment of principal,
interest and other amounts due under the Superior Mortgage at the time of such
application, in such order and priority as Superior Mortgagee shall direct,
before any portion of such accounts, accounts receivable, rents, issues and
profits shall be applied to the Subordinate Mortgage; and (ix) all condemnation,
casualty or similar payments with respect to the premises shall be applied, for
so long as the Superior Mortgage remains outstanding, in accordance with the
Superior Mortgage.

           This Agreement is governed by and is to be construed under the laws
of the state in which the Premises is located.

           So long as the Superior Mortgage shall remain a lien upon the
Premises or any part thereof, Subordinate Mortgagee shall execute, acknowledge
and deliver, upon Superior Mortgagee's reasonable demand, at any time or from
time to time, any and all further subordinations, agreements or other
instruments in recordable form (and in form reasonably satisfactory to
Subordinate Mortgagee) as Superior Mortgagee may reasonably require for carrying
out the purpose and intent of the covenants contained herein; provided, however,
that no such subordinations, agreements or other instruments shall increase
Subordinate Mortgagee's obligations or decrease Subordinate Mortgagee's rights
under this Agreement or the Subordinate Mortgage.

           So long as the Superior Mortgage shall remain a lien upon the
Premises or any part thereof, Subordinate Mortgagee shall not enter into any
agreement to amend or modify the Subordinate Mortgage in a manner material to
Superior Mortgagee without notice to, and the prior consent of, Superior
Mortgagee.

           In order to enable Superior Mortgagee to enforce any claims by the
Subordinate Mortgagee against the Borrower in any liquidation or dissolution of
Borrower, or any execution sale, receivership, insolvency, bankruptcy,
liquidation, readjustment, reorganization, or other similar proceeding relative
to the Borrower or its property, for so long as the Superior Mortgage shall
remain outstanding, Superior Mortgagee is hereby irrevocably authorized and
empowered in its discretion to make and present, for and on behalf of the
undersigned Subordinate Mortgagee, such proofs of claims against the Borrower on
account of the Subordinate Mortgage as Superior Mortgagee may deem expedient or
proper, and to vote such proofs of claims in any such proceeding and to receive
and collect any and all dividends or other payments or disbursements made
thereon in whatever form the same may be paid or issued. Subordinate Mortgagee
further agrees to execute and deliver to Superior Mortgagee such assignments or
other instruments as may be reasonably required by Superior Mortgagee (and in
form reasonably satisfactory to Subordinate Mortgagee) in order to enable
Superior Mortgagee to enforce any and all such claims and to collect any and all
such payments or disbursements provided, however, that no such assignments or
other instruments shall increase Subordinate Mortgagee's obligations or decrease
Subordinate Mortgagee's rights under this Agreement or the Subordinate Mortgage.

           This Agreement shall not be amended or modified except by an
agreement in writing, signed by the party against whom enforcement is sought.

           Except for notices in a foreclosure action, which shall be given as
provided by applicable rule of court, all notices hereunder shall be given to
each party in the same manner as provided in its mortgage or, if there are no
such notice provisions, at the address set forth above by personal delivery or
first class, certified mail, return receipt requested. Notices shall be deemed
to have been given when received. Either party may change its address for
notices hereunder by written notice to the other party.

           This Agreement shall be binding upon the parties hereto and their
respective heirs, successors and assigns. Any assignee of the Subordinate
Mortgage shall be deemed by acceptance thereof to have assumed the obligations
of Subordinate Mortgagee hereunder. Subordinate Mortgagee hereby agrees to have
such assignee execute a formal assumption agreement upon such assignment but no
failure of an assignee to execute an assumption agreement shall affect such
assignee's assumption of the obligations of the Subordinate Mortgagee.

<PAGE>

           IN WITNESS WHEREOF, the parties hereto have duly executed this
Subordination Agreement the day and year first above written.

                                  [Subordinate Mortgagee]

                                    By: __________________________________
                                    Name:
                                    Title:

                                  [Superior Mortgagee]

                                    By: __________________________________
                                    Name:
                                    Title:

      [PRIOR TO EXECUTION, THIS FORM SHOULD BE MODIFIED TO ADD APPROPRIATE
         ACKNOWLEDGEMENTS AND INCORPORATE OTHER REVISIONS REQUIRED FOR
                                   RECORDING]

<PAGE>

                                    EXHIBIT R

                                    RESERVED

<PAGE>

                                   EXHIBIT S-1

                        FORM OF INFORMATION REQUEST FROM
                     CERTIFICATEHOLDER OR CERTIFICATE OWNER

                                     [Date]

Wells Fargo Bank, N.A.
9062 Old Annapolis Road,
Columbia, Maryland  21045-1951
Attention: Credit Suisse First Boston Mortgage Securities Corp.,
Commercial Mortgage Pass-Through Certificates, Series 2006-C4

LaSalle Bank National Association
135 LaSalle Street, Suite 1625
Chicago, Illinois 60603
Attention: Global Securities and Trust Services, CSMC 2006-C4

KeyCorp Real Estate Capital Markets, Inc.,
911 Main Street, Suite 1500
Kansas City, Missouri 64105

NCB, FSB
1725 Eye Street, N.W.
Washington, D.C. 20006

Credit Suisse First Boston Mortgage Securities Corp.
11 Madison Avenue, 5th Floor
New York, New York 10010

      Re:   Credit Suisse First Boston Mortgage Securities Corp. Commercial
            Mortgage Pass-Through Certificates, Series 2006-C4

      In accordance with the Pooling and Servicing Agreement dated as
of September 1, 2006 (the "Pooling and Servicing Agreement"), among
Credit Suisse First Boston Mortgage Securities Corp., as depositor,
KeyCorp Real Estate Capital Markets, Inc., as master servicer (in such
capacity, the "Master Servicer No. 1"), NCB, FSB, as master servicer
(in such capacity, the "Master Servicer No. 2" and collectively with
Master Servicer No. 1 the "Master Servicers"), LNR Partners, Inc., as
special servicer (in such capacity, the "Special Servicer No. 1"),
National Consumer Cooperative Bank as special servicer (in such
capacity, the "Special Servicer No. 2" and collectively with Special
Servicer No. 1, the "Special Servicers"), LaSalle Bank National
Association, as certificate administrator (in such capacity, the
"Certificate Administrator") and paying agent and Wells Fargo Bank,
N.A., as trustee (the "Trustee"), with respect to the Credit Suisse
First Boston Mortgage Securities Corp., Commercial Mortgage
Pass-Through Certificates, Series 2006-C4 (the "Certificates"), the
undersigned ("Investor") hereby certifies and agrees as follows:

      1.   Investor is a [holder] [beneficial owner] of [$__________ aggregate
           [Certificate Balance/Certificate Notional Amount] of] [a ___%
           Percentage Interest in] the Class ____ Certificates.

      2.   Investor is requesting access to the following information (the
           "Information") solely for use in evaluating Investor's investment in
           the Certificates:

           ___       The information available on the [Master Servicers']
                     Website pursuant to Section 3.15 of the Pooling and
                     Servicing Agreement.

           ___       The information available on the Certificate
                     Administrator's Website pursuant to Section 4.02 of the
                     Pooling and Servicing Agreement.

           ___       The information identified on Schedule I attached hereto
                     pursuant to Sections 3.15 and 4.02 of the Pooling and
                     Servicing Agreement.

      3.   In consideration of the applicable Master Servicers' or the
           Trustee's disclosure to Investor of the Information,
           Investor will keep the Information confidential (except from
           such outside Persons as are assisting it in evaluating the
           Information), and such Information will not, without the
           prior written consent of the applicable Master Servicers or
           the Certificate Administrator, as applicable, be disclosed
           by Investor or by its affiliates, officers, directors,
           partners, shareholders, members, managers, employees, agents
           or representatives (collectively, the "Representatives") in
           any manner whatsoever, in whole or in part; provided, that
           Investor may provide all or any part of the Information to
           any other Person that holds or is contemplating the purchase
           of any Certificate or interest therein, but only if such
           Person confirms in writing such ownership interest or
           prospective ownership interest and agrees to keep it
           confidential; and provided further, that Investor may
           provide all or any part of the Information to its auditors,
           legal counsel and regulators.

      4.   Investor will not use or disclose the Information in any manner that
           could result in a violation of any provision of the Securities Act of
           1933, as amended (the "Securities Act"), or the Securities Exchange
           Act of 1934, as amended, or that would require registration of any
           Non-Registered Certificate pursuant to Section 5 of the Securities
           Act.

      5.   Investor hereby acknowledges and agrees that:

            (a)   Neither the applicable Master Servicers nor the Certificate
                  Administrator will make any representations or warranties as
                  to the accuracy or completeness of, and will assume no
                  responsibility for, any report, document or other information
                  delivered pursuant to this request or made available on its
                  respective Website;

            (b)   Neither the applicable Master Servicers, the Certificate
                  Administrator nor the Trustee has undertaken any obligation to
                  verify the accuracy or completeness of any information
                  provided by a Borrower, a third party, each other or any other
                  Person that is included in any report, document or other
                  information delivered pursuant to this request or made
                  available on its respective Website;

            (c)   Any transmittal of any report, document or other information
                  to Investor by the applicable Master Servicers, the
                  Certificate Administrator or the Trustee is subject to, which
                  transmittal may (but need not be) accompanied by a letter
                  containing, the following provision:

                  By receiving the information set forth herein, you hereby
                  acknowledge and agree that the United States securities laws
                  restrict any person who possesses material, non-public
                  information regarding the Trust which issued Credit Suisse
                  First Boston Mortgage Securities Corp., Commercial Mortgage
                  Pass-Through Certificates, Series 2006-C4, from purchasing or
                  selling such Certificates in circumstances where the other
                  party to the transaction is not also in possession of such
                  information. You also acknowledge and agree that such
                  information is being provided to you for the purposes of, and
                  such information may be used only in connection with,
                  evaluation by you or another Certificateholder, Certificate
                  Owner or prospective purchaser of such Certificates or
                  beneficial interest therein; and

            (d)   When delivering any report, document or other information
                  pursuant to this request, the Master Servicers, the
                  Certificate Administrator or the Trustee may (i) indicate the
                  source thereof and may affix thereto any disclaimer it deems
                  appropriate in its discretion and (ii) contemporaneously
                  provide such report, document or information to the Depositor,
                  the Trustee, any Underwriter, any Rating Agency or
                  Certificateholders or Certificate Owners.

      6.    Investor agrees to indemnify and hold harmless the Master Servicers,
            the Certificate Administrator, the Trustee, the Trust and the
            Depositor from any damage, loss, cost or liability (including legal
            fees and expenses and the cost of enforcing this indemnity) arising
            out of or resulting from any unauthorized use or disclosure of the
            Information by Investor or any of its Representatives. Investor also
            acknowledges and agrees that money damages would be both
            incalculable and an insufficient remedy for any breach of the terms
            of this letter by Investor or any of its Representatives and that
            the Master Servicers, the Certificate Administrator, the Trustee, or
            the Trust may seek equitable relief, including injunction and
            specific performance, as a remedy for any such breach. Such remedies
            are not the exclusive remedies for a breach of this letter but are
            in addition to all other remedies available at law or equity.

      Capitalized terms used in this letter but not defined have the respective
meanings given to them in the Pooling and Servicing Agreement.

      IN WITNESS WHEREOF, Investor has caused its name to be signed hereto by
its duly authorized officer, as of the day and year written above.

                               [CERTIFICATEHOLDER] [BENEFICIAL OWNER OF A
                               CERTIFICATE]

                               By: ________________________________________
                               Name: ______________________________________
                               Title: _____________________________________
                               Telephone No.: _____________________________

<PAGE>

                                   SCHEDULE I

                             [INFORMATION REQUESTED]

<PAGE>

                                   EXHIBIT S-2

              FORM OF INFORMATION REQUEST FROM PROSPECTIVE INVESTOR

                                     [Date]

Wells Fargo Bank, N.A.
9062 Old Annapolis Road,
Columbia, Maryland  21045-1951
Attention: Credit Suisse First Boston Mortgage Securities Corp.,
Commercial Mortgage Pass-Through Certificates, Series 2006-C4

LaSalle Bank National Association
135 LaSalle Street, Suite 1625
Chicago, Illinois 60603
Attention: Global Securities and Trust Services, CSMC 2006-C4

KeyCorp Real Estate Capital Markets, Inc.,
911 Main Street, Suite 1500
Kansas City, Missouri 64105

NCB, FSB
1725 Eye Street, N.W.
Washington, D.C. 20006

Credit Suisse First Boston Mortgage Securities Corp.
11 Madison Avenue, 5th Floor
New York, New York 10010

      Re:   Credit Suisse First Boston Mortgage Securities Corp. Commercial
            Mortgage Pass-Through Certificates, Series 2006-C4

           In accordance with the Pooling and Servicing Agreement dated as
      of September 1, 2006 (the "Pooling and Servicing Agreement"), among
      Credit Suisse First Boston Mortgage Securities Corp., as depositor,
      KeyCorp Real Estate Capital Markets, Inc., as master servicer (in such
      capacity, the "Master Servicer No. 1"), NCB, FSB, as master servicer
      (in such capacity, the "Master Servicer No. 2" and collectively with
      Master Servicer No. 1 the "Master Servicers"), LNR Partners, Inc., as
      special servicer (in such capacity, the "Special Servicer No. 1"),
      National Consumer Cooperative Bank as special servicer (in such
      capacity, the "Special Servicer No. 2" and collectively with Special
      Servicer No. 1, the "Special Servicers"), LaSalle Bank National
      Association, as certificate administrator (in such capacity, the
      "Certificate Administrator") and paying agent and Wells Fargo Bank,
      N.A., as trustee (the "Trustee"), with respect to the Credit Suisse
      First Boston Mortgage Securities Corp., Commercial Mortgage
      Pass-Through Certificates, Series 2006-C4 (the "Certificates"), the
      undersigned ("Investor") hereby certifies and agrees as follows:

      1.   Investor is contemplating an investment in the Class ____
           Certificates.

      2.   Investor is requesting access to the following information (the
           "Information") solely for use in evaluating such possible investment:

           ___       The information available on the [Master Servicers']
                     Website pursuant to Section 3.15 of the Pooling and
                     Servicing Agreement.

           ___       The information available on the Certificate
                     Administrator's Website pursuant to Section 4.02 of the
                     Pooling and Servicing Agreement.

           ___       The information identified on Schedule I attached hereto
                     pursuant to Sections 3.15 and 4.02 of the Pooling and
                     Servicing Agreement.

      3.   In consideration of the Master Servicers' or the Trustee's
           disclosure to Investor of the Information, Investor will
           keep the Information confidential (except from such outside
           Persons as are assisting it in making the investment
           decision described in paragraph 1), and such Information
           will not, without the prior written consent of the Master
           Servicers or the Certificate Administrator, as applicable,
           be disclosed by Investor or by its affiliates, officers,
           directors, partners, shareholders, members, managers,
           employees, agents or representatives (collectively, the
           "Representatives") in any manner whatsoever, in whole or in
           part; provided, that Investor may provide all or any part of
           the Information to any other Person that holds or is
           contemplating the purchase of any Certificate or interest
           therein, but only if such Person confirms in writing such
           ownership interest or prospective ownership interest and
           agrees to keep it confidential; and provided further, that
           Investor may provide all or any part of the Information to
           its auditors, legal counsel and regulators.

      4.   Investor will not use or disclose the Information in any manner that
           could result in a violation of any provision of the Securities Act of
           1933, as amended (the "Securities Act"), or the Securities Exchange
           Act of 1934, as amended, or that would require registration of any
           Non-Registered Certificate pursuant to Section 5 of the Securities
           Act.

      5.   Investor hereby acknowledges and agrees that:

           (a)   Neither the Master Servicers nor the Certificate Administrator
                 will make any representations or warranties as to the accuracy
                 or completeness of, and will assume no responsibility for, any
                 report, document or other information delivered pursuant to
                 this request or made available on its respective Website;

           (b)   Neither the Master Servicers, the Certificate Administrator
                 nor the Trustee has undertaken any obligation to verify the
                 accuracy or completeness of any information provided by a
                 Borrower, a third party, each other or any other Person that
                 is included in any report, document or other information
                 delivered pursuant to this request or made available on its
                 respective Website;

           (c)   Any transmittal of any report, document or other information
                 to Investor by the Master Servicers, the Certificate
                 Administrator or the Trustee is subject to, which transmittal
                 may (but need not be) accompanied by a letter containing, the
                 following provision:

                 By receiving the information set forth herein, you hereby
                 acknowledge and agree that the United States securities laws
                 restrict any person who possesses material, non-public
                 information regarding the Trust which issued Credit Suisse
                 First Boston Mortgage Securities Corp., Commercial Mortgage
                 Pass-Through Certificates, Series 2006-C4, from purchasing or
                 selling such Certificates in circumstances where the other
                 party to the transaction is not also in possession of such
                 information. You also acknowledge and agree that such
                 information is being provided to you for the purposes of, and
                 such information may be used only in connection with,
                 evaluation by you or another Certificateholder, Certificate
                 Owner or prospective purchaser of such Certificates or
                 beneficial interest therein; and

           (d)   When delivering any report, document or other information
                 pursuant to this request, the Master Servicers, the
                 Certificate Administrator or the Trustee may (i) indicate the
                 source thereof and may affix thereto any disclaimer it deems
                 appropriate in its discretion and (ii) contemporaneously
                 provide such report, document or information to the Depositor,
                 the Trustee, any Underwriter, any Rating Agency or
                 Certificateholders or Certificate Owners.

      6.   Investor agrees to indemnify and hold harmless the Master Servicers,
           the Certificate Administrator, the Trustee, the Trust and the
           Depositor from any damage, loss, cost or liability (including legal
           fees and expenses and the cost of enforcing this indemnity) arising
           out of or resulting from any unauthorized use or disclosure of the
           Information by Investor or any of its Representatives. Investor also
           acknowledges and agrees that money damages would be both incalculable
           and an insufficient remedy for any breach of the terms of this letter
           by Investor or any of its Representatives and that the Master
           Servicers, the Certificate Administrator, the Trustee or the Trust
           may seek equitable relief, including injunction and specific
           performance, as a remedy for any such breach. Such remedies are not
           the exclusive remedies for a breach of this letter but are in
           addition to all other remedies available at law or equity.

      Capitalized terms used in this letter but not defined have the respective
meanings given to them in the Pooling and Servicing Agreement.

      IN WITNESS WHEREOF, Investor has caused its name to be signed hereto by
its duly authorized officer, as of the day and year written above.

                               [PROSPECTIVE PURCHASER]

                               By: ____________________________________
                               Name: __________________________________
                               Title: _________________________________
                               Telephone No.: _________________________

<PAGE>

                                   SCHEDULE I

                             [INFORMATION REQUESTED]

<PAGE>

                                    EXHIBIT T

                   CLASS A-AB TARGETED PRINCIPAL BALANCE TABLE

  Distribution Date      Balance      Distribution Date     Balance
--------------------- ------------ ---------------------- -----------

<PAGE>

                                    EXHIBIT U

                           Relevant Servicing Criteria

     SERVICING CRITERIA TO BE ADDRESSED IN ASSESSMENT OF COMPLIANCE

      The assessment of compliance to be delivered shall address, at a minimum,
the criteria identified below as "Relevant Servicing Criteria" (with each
Servicing Function Participant deemed to be responsible for the items applicable
to the functions it is performing and for which the party that retained such
Servicing Function Participant is responsible):

<TABLE>
<CAPTION>
                                         Relevant Servicing Criteria                              Applicable Party(ies)
------------------------------------------------------------------------------------------------------------------------------
      Reference                                         Criteria
------------------------------------------------------------------------------------------------------------------------------
                                            General Servicing Considerations

<S>                     <C>                                                                       <C>
1122(d)(1)(i)           Policies and procedures are instituted to monitor any performance or           Certificate
                        other triggers and events of default in accordance with the transaction       Administrator
                        agreements.                                                                  Master Servicer
                                                                                                    Special Servicer

1122(d)(1)(ii)          If any material servicing activities are outsourced to third parties,          Certificate
                        policies and procedures are instituted to monitor the third party's           Administrator
                        performance and compliance with such servicing activities.                   Master Servicer
                                                                                                    Special Servicer

1122(d)(1)(iii)         Any requirements in the transaction agreements to maintain a back-up               N/A
                        servicer for the mortgage loans are maintained.

1122(d)(1)(iv)          A fidelity bond and errors and omissions policy is in effect on the          Master Servicer
                        party participating in the servicing function throughout the reporting      Special Servicer
                        period in the amount of coverage required by and otherwise in
                        accordance with the terms of the transaction agreements.

                                           Cash Collection and Administration

1122(d)(2)(i)           Payments on mortgage loans are deposited into the appropriate custodial        Certificate
                        bank accounts and related bank clearing accounts no more than two             Administrator
                        business days following receipt, or such other number of days specified      Master Servicer
                        in the transaction agreements.                                              Special Servicer

1122(d)(2)(ii)
                        Disbursements made via wire transfer on behalf of an obligor or to an          Certificate
                        investor are made only by authorized personnel.                               Administrator

1122(d)(2)(iii)         Advances of funds or guarantees regarding collections,
                        cash flows or Master Servicer distributions, and any
                        interest or other fees charged for such Special Servicer
                        advances, are made, reviewed and approved as specified
                        in the Trustee transaction agreements.

1122(d)(2)(iv)          The related accounts for the transaction, such as cash reserve accounts        Certificate
                        or accounts established as a form of overcollateralization, are               Administrator
                        separately maintained (e.g., with respect to commingling of cash) as         Master Servicer
                        set forth in the transaction agreements.                                    Special Servicer

1122(d)(2)(v)           Each custodial account is maintained at a federally                            Certificate
                        insured depository institution as set forth                                   Administrator
                        in the transaction agreements. For purposes depository institution"          Master Servicer
                        of this criterion, "federally insured with respect to a foreign             Special Servicer
                        financial institution means a foreign financial Special Servicer
                        institution that meets the requirements of Rule 13k-1(b)(1) of the
                        Securities Exchange Act.

1122(d)(2)(vi)          Unissued checks are safeguarded so as to prevent unauthorized access.        Master Servicer
                                                                                                    Special Servicer
                                                                                                       Certificate
                                                                                                      Administrator

1122(d)(2)(vii)         Reconciliations are prepared on a monthly basis for all asset-backed           Certificate
                        securities related bank accounts, including custodial accounts and            Administrator
                        related bank clearing accounts.  These reconciliations are (A)               Master Servicer
                        mathematically accurate; (B) prepared within 30 calendar days after the     Special Servicer
                        bank statement cutoff date, or such other number of days specified in
                        the transaction agreements; (C) reviewed and approved by someone other
                        than the person who prepared the reconciliation; and (D) contain
                        explanations for reconciling items.  These reconciling items are
                        resolved within 90 calendar days of their original identification, or
                        such other number of days specified in the transaction agreements.

                                           Investor Remittances and Reporting

1122(d)(3)(i)           Reports to investors, including those to be filed with the Commission,         Certificate
                        are maintained in accordance with the transaction agreements and              Administrator
                        applicable Commission requirements.  Specifically, such reports (A) are
                        prepared in accordance with timeframes and other terms set forth in the
                        transaction agreements; (B) provide information calculated in
                        accordance with the terms specified in the transaction agreements; (C)
                        are filed with the Commission as required by its rules and regulations;
                        and (D) agree with investors' or the trustee's records as to the total
                        unpaid principal balance and number of mortgage loans serviced by the
                        Servicer.

1122(d)(3)(ii)          Amounts due to investors are allocated and remitted in accordance with         Certificate
                        timeframes, distribution priority and other terms set forth in the            Administrator
                        transaction agreements.

1122(d)(3)(iii)         Disbursements made to an investor are posted within two                        Certificate
                        business days to the Servicer's investor  records, or such other number       Administrator
                        of days specified in the transaction agreements.

1122(d)(3)(iv)          Amounts remitted to investors per the investor reports agree with              Certificate
                        cancelled checks, or other form of payment, or custodial bank                 Administrator
                        statements.

                                               Pool Asset Administration

1122(d)(4)(i)           Collateral or security on mortgage loans is maintained                           Trustee
                        as required by the transaction agreements or                                  Master Servicer
                        related mortgage loan documents.                                              Special Servicer

1122(d)(4)(ii)          Mortgage loan and related documents are safeguarded as required by the           Trustee
                        transaction agreements.

1122(d)(4)(iii)         Any additions, removals or substitutions to the mortgage                         Trustee
                        loan pool are made, reviewed and approved in accordance with any              Special Servicer
                        conditions or requirements in the transaction agreements.                     Master Servicer

1122(d)(4)(iv)          Payments on mortgage loans, including any payoffs, made in accordance         Master Servicer
                        with the related mortgage loan documents are posted to the Servicer's         Special Servicer
                        obligor records maintained no more than two business days after
                        receipt, or such other number of days specified in the transaction
                        agreements, and allocated to principal, interest or other items (e.g.,
                        escrow) in accordance with the related mortgage loan documents.

1122(d)(4)(v)           The Servicer's records regarding the mortgage loans agree with the            Master Servicer
                        Servicer's records with respect to an obligor's unpaid principal
                        balance.

1122(d)(4)(vi)          Changes with respect to the terms or status of an obligor's mortgage          Master Servicer
                        loans (e.g., loan modifications or re-agings) are made, reviewed and          Special Servicer
                        approved by authorized personnel in accordance with the transaction
                        agreements and related mortgage loan documents.

1122(d)(4)(vii)         Loss mitigation or recovery actions (e.g., forbearance plans,              Special Servicer
                        modifications and deeds in lieu of foreclosure, foreclosures and
                        repossessions, as applicable) are initiated, conducted and concluded
                        in accordance with the timeframes or other requirements established
                        by the transaction agreements.

1122(d)(4)(viii)        Records documenting collection efforts are maintained during the period      Master Servicer
                        a mortgage loan is delinquent in accordance with the transaction            Special Servicer
                        agreements.  Such records are maintained on at least a monthly basis,
                        or such other period specified in the transaction agreements, and
                        describe the entity's activities in monitoring delinquent mortgage
                        loans including, for example, phone calls, letters and payment
                        rescheduling plans in cases where delinquency is deemed temporary
                        (e.g., illness or unemployment).

1122(d)(4)(ix)          Adjustments to interest rates or rates of return for mortgage loans                N/A
                        with variable rates are computed based on the related mortgage loan
                        documents.

1122(d)(4)(x)           Regarding any funds held in trust for an obligor (such as escrow             Master Servicer
                        accounts): (A) such funds are analyzed, in accordance with the
                        obligor's mortgage loan documents, on at least an annual basis, or such
                        other period specified in the transaction agreements; (B) interest on
                        such funds is paid, or credited, to obligors in accordance with
                        applicable mortgage loan documents and state laws; and (C) such funds
                        are returned to the obligor within 30 calendar days of full repayment
                        of the related mortgage loan, or such other number of days specified in
                        the transaction agreements.

1122(d)(4)(xi)          Payments made on behalf of an obligor (such as tax or insurance              Master Servicer
                        payments) are made on or before the related penalty or expiration
                        dates, as indicated on the appropriate bills or notices for such
                        payments, provided that such support has been received by the servicer
                        at least 30 calendar days prior to these dates, or such other number of
                        days specified in the transaction agreements.

1122(d)(4)(xii)         Any late payment penalties in connection with any payment to be made on      Master Servicer
                        behalf of an obligor are paid from the servicer's funds and not
                        charged to the obligor, unless the late payment was due to the obligor's
                        error or omission.

1122(d)(4)(xiii)        Disbursements made on behalf of an obligor are posted within two              Master Servicer
                        business days to the obligor's records maintained by the servicer, or
                        such other number of days specified in the transaction agreements.

1122(d)(4)(xiv)         Delinquencies, charge-offs and uncollectible accounts are recognized          Master Servicer
                        and recorded in accordance with the transaction agreements.

1122(d)(4)(xv)          Any external enhancement or other support, identified in Item                      N/A
                        1114(a)(1) through (3) or Item 1115 of Regulation AB, is maintained as
                        set forth in the transaction agreements.
</TABLE>

<PAGE>

                                    EXHIBIT V

                         Additional Form 10-D Disclosure

<TABLE>
<CAPTION>
                     Item on Form 10-D                                         Responsible Parties

----------------------------------------------------------- ---------------------------------------------------------
<S>                                                         <C>
                                                                                 Master Servicer
Item 1:    Distribution and Pool Performance Information                         Special Servicer
                                                                 (only with respect to 1121 (a) (12) as specially
                                                                                  serviced loans)
Any information required by 1121 which is NOT included on                   Certificate Administrator
           the Monthly Statement                                                    Depositor

                                                              (i) All parties to the Pooling and Servicing Agreement
                                                              (as to themselves), (ii) the Trustee, the Certificate
                                                              Administrator or the Master Servicers and the Special
                                                               Servicers (in the case of the Master Servicers, the
                                                              Trustee, the Certificate Administrator and the Special
Item 2:    Legal Proceedings                                 Servicers, to be reported by the party controlling such
                                                                 litigation) as to the issuing entity, (iii) the
per Item 1117 of Reg AB (to the extent material to the         Depositor as to the sponsor, any 1110(b) originator,
           certificateholders)                                               and any 1100(d)(1) party
Item 3:    Sale of Securities and Use of Proceeds                                   Depositor
Item 4:    Defaults Upon Senior Securities                                  Certificate Administrator
Item 5:    Submission of Matters to a Vote of Security
           Holders                                                          Certificate Administrator
Item 6:    Significant Obligors of Pool Assets                                    Not applicable
Item 7:    Significant Enhancement Provider Information                             Depositor
Item 8:    Other Information                                  Any party responsible for disclosure items on Form 8-K
                                                                                     Depositor
Item 9:    Exhibits                                                         Certificate Administrator
</TABLE>

<PAGE>

                                    EXHIBIT W

                         Additional Form 10-K Disclosure

<TABLE>
<CAPTION>
                     Item on Form 10-K                                          Party Responsible
----------------------------------------------------------- ---------------------------------------------------------
<S>                                                         <C>

Item 1B:   Unresolved Staff Comments                                                Depositor

Item 9B:   Other Information                                  Any party responsible for disclosure items on Form 8-K

                                                                            Certificate Administrator
Item 15:   Exhibits, Financial Statement Schedules                                  Depositor

                                                              (i) All parties to the Pooling and Servicing Agreement
                                                              (as to themselves), (ii) the Trustee, the Certificate
                                                               Administrator, the Master Servicers and the Special
                                                               Servicers (in the case of the Master Servicers, the
                                                              Trustee, the Certificate Administrator and the Special
                                                             Servicers, to be reported by the party controlling such
Additional Item:                                                 litigation) as to the issuing entity, (iii) the
Disclosure per Item 1117 of Reg AB (to the extent material     Depositor as to the sponsor, any 1110(b) originator,
           to the certificateholders)                                        and any 1100(d)(1) party

                                                              (i) All parties to the Pooling and Servicing Agreement
                                                             as to themselves, (ii) the Depositor as to the sponsor,
Additional Item:                                             originator, significant obligor, enhancement or support
Disclosure per Item 1119 of Reg AB                                                   provider

Additional Item:
Disclosure per Item 1112(b) of Reg AB                               Depositor/Master Servicer/Special Servicer

Additional Item:
Disclosure per Items 1114(b)(2) and 1115(b) of Reg AB                            [Not applicable]
</TABLE>

<PAGE>

                                    EXHIBIT X

                         Form 8-K Disclosure Information

<TABLE>
<CAPTION>
                     Item on Form 8-K                                           Party Responsible
----------------------------------------------------------- ---------------------------------------------------------
<S>                                                         <C>
                                                             All parties (only as to the agreements such entity is a
                                                                party to or entered into on behalf of the issuing
Item 1.01:    Entry into a Material Definitive Agreement                             entity)
                                                             All parties (only as to the agreements such entity is a
Item 1.02     Termination of a Material Definitive              party to or entered into on behalf of the issuing
              Agreement                                                              entity)
Item 1.03     Bankruptcy or Receivership                                            Depositor
Item 2.04     Triggering Events that Accelerate or
              Increase a Direct Financial Obligation or an
              Obligation under an Off-Balance Sheet
              Arrangement                                                         Not applicable
Item 3.03     Material Modification to Rights of Security
              Holders                                                       Certificate Administrator
Item 5.03     Amendments of Articles of Incorporation or
              Bylaws; Change of Fiscal Year                                         Depositor
Item 6.01     ABS Informational and Computational Material                          Depositor
                                                               Master Servicer/Special Servicer (as to itself or a
                                                             servicer retained by it)
                                                                                     Trustee
Item 6.02     Change of Servicer or Trustee                                         Depositor
                                                                                    Depositor
Item 6.03     Change in Credit Enhancement or External                               Trustee
              Support                                                       Certificate Administrator
Item 6.04     Failure to Make a Required Distribution                       Certificate Administrator
Item 6.05     Securities Act Updating Disclosure                                    Depositor
Item 7.01     Reg FD Disclosure                                                     Depositor
Item 8.01                                                                           Depositor
Item 9.01                                                                           Depositor
</TABLE>

<PAGE>

                                    EXHIBIT Y

                       Additional Disclosure Notification

**SEND VIA FAX TO 312-904-2084 AND VIA OVERNIGHT MAIL TO THE ADDRESS
IMMEDIATELY BELOW**

LaSalle Bank National Association
135 LaSalle Street, Suite 1625
Chicago, Illinois 60603
Attention: Global Securities and Trust Services, CSMC 2006-C4 -- SEC
REPORT PROCESSING

Credit Suisse First Boston Mortgage Securities Corp.
11 Madison Avenue, 5th Floor
New York, New York 10010

RE: **Additional Form [10-D][10-K][8-K] Disclosure** Required

Ladies and Gentlemen:

In accordance with Section [_] of the Pooling and Servicing Agreement, , dated
as of [_________][ ], 2006, among [____________], as [_______________],
[____________], as [_______________], [____________], as [_______________] and
[____________], as [_______________]. the undersigned, as [__________], hereby
notifies you that certain events have come to our attention that [will] [may]
need to be disclosed on Form [10-D][10-K][8-K].

Description of Additional Form [10-D][10-K][8-K] Disclosure:

List of any Attachments hereto to be included in the Additional Form
[10-D][10-K][8-K] Disclosure:

Any inquiries related to this notification should be directed to
[_______________________], phone number: [_________]; email address:
[____________________].

                                          [NAME OF PARTY],

                                          as [role]

                                          By: ______________________________
                                              Name:
                                              Title:

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00111-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00111-of-00352.parquet"}]]