Document:

EXHIBIT 4.1

              CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.,
                                    Depositor

                      GMAC COMMERCIAL MORTGAGE CORPORATION,
                                 Master Servicer

                             LENNAR PARTNERS, INC.,
                                Special Servicer

                             WELLS FARGO BANK, N.A.,
                                     Trustee

                                       and

                         POOLING AND SERVICING AGREEMENT

                            Dated as of March 1, 2005

                                 $1,510,367,836
                  Commercial Mortgage Pass-Through Certificates
                                 Series 2005-C1

<PAGE>

                                TABLE OF CONTENTS

                                    ARTICLE I

                  DEFINITIONS; GENERAL INTERPRETIVE PRINCIPLES;
              CERTAIN CALCULATIONS IN RESPECT OF THE MORTGAGE POOL

Section 1.01  Defined Terms................................................
Section 1.02  General Interpretive Principles..............................
Section 1.03  Certain Calculations in Respect of the Mortgage Loans........
Section 1.04  Crossed Trust Mortgage Loans.................................
Section 1.05  Certain Adjustments to the Principal Distributions on the
              Certificates.................................................

                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                        ORIGINAL ISSUANCE OF CERTIFICATES

Section 2.01  Conveyance of Original Trust Mortgage Loans..................
Section 2.02  Acceptance by Trustee........................................
Section 2.03  Representations, Warranties and Covenants of the
               Depositor; Repurchase and Substitution of Trust Mortgage
               Loans by the Mortgage Loan Sellers for Defects in
               Mortgage Files and Breaches of Representations and
               Warranties..................................................
Section 2.04  Issuance of Uncertificated REMIC I Interests; Execution
               of Certificates.............................................
Section 2.05  Acceptance of Grantor Trusts; Issuance of the Class V and
               Class LR Certificates.......................................

                                   ARTICLE III

                 ADMINISTRATION AND SERVICING OF THE TRUST FUND

Section 3.01  Master Servicer to Act as Master Servicer; Special
               Servicer to Act as Special Servicer; Administration of
               the Mortgage Loans..........................................
Section 3.02  Collection of Mortgage Loan Payments.........................
Section 3.03  Collection of Taxes, Assessments and Similar Items;
               Servicing Accounts..........................................
Section 3.04  The Collection Account, Distribution Account, Grantor
               Trust Distribution Account, Excess Liquidation Proceeds
               Account and Mortgage Loan Combination Custodial Accounts....
Section 3.05  Permitted Withdrawals from the Collection Account and the
               Distribution Account........................................
Section 3.06  Investment of Funds in the Collection Account, Mortgage
               Loan Combination Custodial Accounts, Servicing Accounts,
               Cash Collateral Accounts, Lock-Box Accounts, Interest
               Reserve Account, REMIC I Distribution Account, REMIC II
               Distribution Account, Excess Liquidation Proceeds
               Account, Grantor Trust Distribution Account and the REO
               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 Mortgage Loans....................
Section 3.10  Trustee to Cooperate; Release of Mortgage Files..............
Section 3.11  Servicing Compensation.......................................
Section 3.12  Reports to the Trustee.......................................
Section 3.13  Annual Statement as to Compliance............................
Section 3.14  Reports by Independent Public Accountants....................
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  Fair Value Purchase Option; Sale of REO Properties...........
Section 3.19  Additional Obligations of the 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; Series 2005-C1 Directing
               Certificateholder...........................................
Section 3.22  Sub-Servicing Agreements.....................................
Section 3.23  Representations, Warranties and Covenants of the Master
               Servicer....................................................
Section 3.24  Representations, Warranties and Covenants of the Special
               Servicer....................................................
Section 3.25  Limitation on Liability of the Series 2005-C1 Directing
               Certificateholder...........................................
Section 3.26  Filings with the Securities and Exchange Commission..........
Section 3.27  Lock-Box Accounts, Cash Collateral Accounts and Servicing
               Accounts....................................................
Section 3.28  Interest Reserve Account.....................................
Section 3.29  Limitations on and Authorizations of the Master Servicer
               and Special Servicer with Respect to Certain Mortgage
               Loans and Certain Litigation................................
Section 3.30  Master Servicer and Special Servicer May Own Certificates....

                                   ARTICLE IV

                         PAYMENTS TO CERTIFICATEHOLDERS

Section 4.01  Distributions................................................
Section 4.02  Statements to Certificateholders; Certain Other Reports......
Section 4.03  P&I Advances.................................................
Section 4.04  Allocation of Realized Losses and Additional Trust Fund
               Expenses....................................................
Section 4.05  Calculations.................................................
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...

                                   ARTICLE VI

           THE DEPOSITOR, THE MASTER SERVICER AND THE SPECIAL SERVICER

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

                                   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

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

                                   ARTICLE IX

                                   TERMINATION

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

                                    ARTICLE X

                            ADDITIONAL TAX PROVISIONS

Section 10.01 Tax Administration...........................................

                                   ARTICLE XI

                            MISCELLANEOUS PROVISIONS

Section 11.01 Amendment....................................................
Section 11.02 Recordation of Agreement; Counterparts.......................
Section 11.03 Limitation on Rights of Certificateholders and B Loan
               Holders.....................................................
Section 11.04 Governing Law................................................
Section 11.05 Notices......................................................
Section 11.06 Severability of Provisions...................................
Section 11.07 Grant of a Security Interest.................................
Section 11.08 Successors and Assigns; Beneficiaries........................
Section 11.09 Article and Section Headings.................................
Section 11.10 Notices to Rating Agencies...................................

<PAGE>

                                   EXHIBITS

A-1        Form of Class A-X and Class A-SP Certificates A-2 Form of Class A-1,
           Class
A-2,       Class A-3, Class A-AB, Class A-4, Class A-J, Class B, Class C and
           Class D Certificates
A-3        Form of Class E, Class F, Class G, Class H, Class J, Class K, Class
             L, Class M, Class N, Class O and Class P Certificates
A-4        Form of Class V Certificates
A-5        Form of Class R and Class LR Certificates
B-1        Schedule of Column Trust Mortgage Loans
B-2        Schedule of GMACCM Trust Mortgage Loans
C-1        List of Additional Collateral Trust Mortgage Loans
C-2        List of Mezzanine Loans
D-1        Form of Master Servicer Request for Release
D-2        Form of Special Servicer Request for Release
E          Form of Trustee 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 and Agreement for Transfers of
             Class R and Class LR Certificates
H-2        Form of Transferor Certificate for Transfers of Class R and Class LR
             Certificates
I          Form of Acknowledgement of Proposed Special Servicer
J          Form of Affidavit of Lost Note
K          Reserved
L          Schedule of Reference Rates
M-1        Form of Trustee Certification
M-2        Form of Master Servicer Certification
M-3        Form of Special Servicer Certification
N          Schedule of Designated Sub-Servicers
O          Form of Custodial Certification
P          Trust Mortgage Loans Covered by Environmental Insurance Policy
Q          Reserved
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

<PAGE>

            This Pooling and Servicing Agreement (this "Agreement"), is dated
and effective as of March 1, 2005, among CREDIT SUISSE FIRST BOSTON MORTGAGE
SECURITIES CORP., as Depositor, GMAC COMMERCIAL MORTGAGE CORPORATION, as Master
Servicer, LENNAR PARTNERS, INC., as Special Servicer and WELLS FARGO BANK, N.A.,
as Trustee.

                            PRELIMINARY STATEMENT:

            Column Financial, Inc. (together with its successors in interest,
"Column") has sold to Credit Suisse First Boston Mortgage Securities Corp.
(together with its successors in interest, the "Depositor"), pursuant to the
Mortgage Loan Purchase Agreement dated as of March 1, 2005 (as such may from
time to time hereafter be amended, modified, supplemented and/or restated, the
"Column Mortgage Loan Purchase Agreement"), between Column as seller and the
Depositor as purchaser, those mortgage loans initially identified on the
schedule attached hereto as Exhibit B-1 (such mortgage loans, the "Original
Column Trust Mortgage Loans").

            GMAC Commercial Mortgage Corporation (together with its successors
in interest, "GMACCM") has sold to the Depositor, pursuant to the Mortgage Loan
Purchase Agreement dated as of March 1, 2005 (as such may from time to time
hereafter be amended, modified, supplemented and/or restated, the "GMACCM
Mortgage Loan Purchase Agreement"), between GMACCM as seller and the Depositor
as purchaser, those mortgage loans initially identified on the schedule attached
hereto as Exhibit B-2 (such mortgage loans, the "Original GMACCM Trust Mortgage
Loans").

            The Depositor desires, among other things, to: (i) establish a trust
fund, consisting primarily of the Original Column Trust Mortgage Loans and the
Original GMACCM Trust Mortgage Loans (collectively, the "Original Trust Mortgage
Loans") and certain related rights, funds and property; (ii) cause the issuance
of a series of mortgage pass-through certificates in multiple classes, which
certificates will, in the aggregate, evidence the entire beneficial ownership
interest in such trust fund; and (iii) provide for the servicing and
administration of the mortgage loans, including the Original Trust Mortgage
Loans, and the other assets that from time to time constitute part of such trust
fund.

            Wells Fargo Bank, N.A. (together with its successors in interest,
"Wells Fargo") desires to act as "Trustee" hereunder; GMACCM desires to act as
"Master Servicer" hereunder; and Lennar Partners, Inc. (together with its
successors in interest, "Lennar") desires to act as "Special Servicer"
hereunder.

            As provided herein, the Trustee shall elect or shall cause an
election to be made that each of REMIC I, REMIC II and the JFK Medical Pavilion
II 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 JFK Medical Pavilion II Loan REMIC Residual Interest and the
Grantor Trust Distribution Account 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 Class V Certificates will represent undivided beneficial interests
in the portion of the Trust Fund consisting of the Excess Interest and the
related proceeds thereof in the Grantor Trust Distribution Account. The Class LR
Certificates will represent undivided beneficial interests in the portion of the
Trust Fund consisting of the JFK Medical Pavilion II Loan REMIC Residual
Interest and the related proceeds thereof in the Grantor Trust Distribution
Account. Additionally, the Trust shall not include any B Loan, any interest of
any B Loan Holder or any interest of any B Loan Holder in any Mortgage Loan
Combination Custodial Account.

            As provided herein, the Trustee shall elect or cause an election to
be made to treat the segregated pool of assets consisting of the Uncertificated
REMIC I Interests and the proceeds thereof as a REMIC for federal income tax
purposes, and such segregated pool of assets will be designated as "REMIC II."
The Class A-1, Class A-2, Class A-AB, Class A-3, Class A-4, Class A-X, Class
A-SP, 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 and Class P Certificates
will evidence "regular interests" in REMIC II created hereunder. The Class R
Certificates will evidence the sole Class of "residual interests" in REMIC II.
The following table sets forth the designation, the initial pass-through rate
(the "Pass-Through Rate"), the aggregate initial principal amount (the "Original
Certificate Balance") or notional balance ("Original Notional Balance"), as
applicable, and the initial ratings given each Class (as indicated below) by the
Rating Agencies (as defined herein) for each Class of certificates comprising
the interests in REMIC II created hereunder:

                                    REMIC II

<TABLE>
<CAPTION>
                                            Original Certificate
                                         Balance (or, in the case of
                                            the Class A-X or A-SP
                    Initial Pass-          Certificates, Original         Initial Ratings(1)
Class Designation   Through Rate              Notional Balance)             Fitch/Moody's
-----------------   -------------        ---------------------------      ------------------
<S>                        <C>                        <C>                     <C>
    Class A-1              4.3460%                      $113,741,000           AAA/Aaa
    Class A-2              4.6090%                      $125,500,000           AAA/Aaa
   Class A-AB              4.8150%                      $113,100,000           AAA/Aaa
    Class A-3              4.8130%                      $181,606,000           AAA/Aaa
    Class A-4              5.0140%(2)                   $674,347,000           AAA/Aaa
    Class A-X              0.0614%(3)                 $1,510,367,836(4)        AAA/Aaa
   Class A-SP              0.5846%(5)                 $1,426,004,000(4)        AAA/Aaa
    Class A-J              5.0750%(6)                    $92,510,000           AAA/Aaa
     Class B               5.1240%(7)                    $43,423,000            AA/Aa2
     Class C               5.1440%(8)                    $13,216,000           AA-/Aa3
     Class D               5.2030%(9)                    $24,543,000             A/A2
     Class E               5.2920%(10)                   $18,880,000            A-/A3
     Class F               4.8210%                       $20,767,000          BBB+/Baa1
     Class G               4.9650%(11)                   $15,104,000           BBB/Baa2
     Class H               5.4460%(12)                   $18,880,000          BBB-/Baa3
     Class J               4.8550%(13)                    $5,663,000           BB+/Ba1
     Class K               4.8550%(13)                    $5,664,000            BB/Ba2
     Class L               4.8550%(13)                    $5,664,000           BB-/Ba3
     Class M               4.8550%(13)                    $5,664,000            B+/B1
     Class N               4.8550%(13)                    $5,664,000             B/B2
     Class O               4.8550%(13)                    $3,776,000            B-/B3
     Class P               4.8550%(13)                   $22,655,836            NR/NR
     Class R                  None                         None(14)             NR/NR
</TABLE>

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

(1)   The Certificates marked "NR" have not been rated by the applicable Rating
      Agency.

(2)   The lesser of 5.0140% and the Weighted Average Net Mortgage Pass-Through
      Rate.

(3)   The Class A-X Pass-Through Rate, as defined herein.

(4)   Original Notional Balance. The Class A-X and Class A-SP Certificates will
      not have a Certificate Balance and will not be entitled to receive
      distributions of principal.

(5)   The Class A-SP Pass-Through Rate, as defined herein.

(6)   The lesser of 5.0750% and the Weighted Average Net Mortgage Pass-Through
      Rate.

(7)   The lesser of 5.1240% and the Weighted Average Net Mortgage Pass-Through
      Rate.

(8)   The lesser of 5.1440% and the Weighted Average Net Mortgage Pass-Through
      Rate.

(9)   The lesser of 5.2030% and the Weighted Average Net Mortgage Pass-Through
      Rate. .

(10)  The lesser of 5.2920% and the Weighted Average Net Mortgage Pass-Through
      Rate.

(11)  The lesser of 4.9650% and the Weighted Average Net Mortgage Pass-Through
      Rate.

(12)  The lesser of 5.4460% and the Weighted Average Net Mortgage Pass-Through
      Rate.

(13)  The lesser of 4.8550% and the Weighted Average Net Mortgage Pass-Through
      Rate.

(14)  The Class R Certificates will not have a Certificate Balance or Notional
      Balance, will not bear interest and will not be entitled to distributions
      of Yield Maintenance Charges. Any Available Distribution Amount remaining
      in the REMIC II Distribution Account after all required distributions
      under this Agreement have been made to each other Class of Certificates
      will be distributed to the Holders of the Class R Certificates.

                                   REMIC I

            As provided herein, the Trustee shall elect or cause an election to
be made to treat the segregated pool of assets consisting of the Trust Mortgage
Loans (exclusive of Excess Interest, the JFK Medical Pavilion II Loan REMIC
Residual Interest and the Grantor Trust Distribution Account and the JFK Medical
Pavilion II Loan) and the JFK Medical Pavilion II 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 "REMIC I." The Class LA-1-1, Class LA-1-2, Class LA-1-3, Class
LA-2-1, Class LA-2-2, Class LA-2-3, Class LA-3-1, Class LA-3-2, Class LA-AB-1,
Class LA-AB-2, Class LA-4-1, Class LA-4-2, Class LA-J, Class LB, Class LC-1,
Class LC-2, Class LD-1, Class LD-2, Class LE-1, Class LE-2, Class LF, Class
LG-1, Class LG-2, Class LH, Class LJ, Class LK, Class LL, Class LM, Class LN,
Class LO and Class LP Uncertificated Interests will evidence "regular interests"
in REMIC I (the "Uncertificated REMIC I Interests") created hereunder. The Class
LR Certificates will evidence the sole Class of "residual interests" in REMIC I.

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

<TABLE>
<CAPTION>
                         Corresponding                                   Corresponding
                         Uncertificated                               Components of Class
Corresponding               REMIC I             Original REMIC I          A-X and A-SP
 Certificates           Interests(1)(2)         Principal Amount        Certificates(1)
--------------        -------------------     ---------------------  ----------------------
<S>                         <C>                   <C>                        <C>
  Class A-1                  LA-1-1                $10,733,000               A-1-1
                             LA-1-2                $66,542,000               A-1-2
                             LA-1-3                $36,466,000               A-1-3
  Class A-2                  LA-2-1                $35,088,000               A-2-1
                             LA-2-2                $68,129,000               A-2-2
                             LA-2-3                $22,283,000               A-2-3
  Class A-3                  LA-3-1               $162,864,000               A-3-1
                             LA-3-2                $18,742,000               A-3-2
  Class A-AB                LA-AB-1                $51,625,000               A-AB-1
                            LA-AB-2                $61,475,000               A-AB-2
  Class A-4                  LA-4-1               $110,460,000               A-4-1
                             LA-4-2               $563,887,000               A-4-2
  Class A-J                   LA-J                 $92,510,000                A-J
   Class B                     LB                  $43,423,000                 B
   Class C                    LC-1                    $871,000                C-1
                              LC-2                 $12,345,000                C-2
   Class D                    LD-1                  $6,014,000                D-1
                              LD-2                 $18,529,000                D-2
   Class E                    LE-1                  $2,308,000                E-1
                              LE-2                 $16,572,000                E-2
   Class F                     LF                  $20,767,000                 F
   Class G                    LG-1                 $12,629,000                G-1
                              LG-2                  $2,475,000                G-2
   Class H                     LH                  $18,880,000                 H
   Class J                     LJ                   $5,663,000                 J
   Class K                     LK                   $5,664,000                 K
   Class L                     LL                   $5,664,000                 L
   Class M                     LM                   $5,664,000                 M
   Class N                     LN                   $5,664,000                 N
   Class O                     LO                   $3,776,000                 O
   Class P                     LP                  $22,655,836                 P
</TABLE>

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

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

(2)   The interest rate of each of the indicated Classes of Uncertificated REMIC
      I Interests is the Weighted Average Net Mortgage Pass-Through Rate.

            The Class LR Certificates will not have a Certificate Balance or
Notional Balance, will not bear interest and will not be entitled to
distributions of Yield Maintenance Charges. Any Available Distribution Amount
remaining in the REMIC I Distribution Account after distributing the REMIC I
Distribution Amount on each Distribution Date shall be distributed to the
Holders of the Class LR Certificates.

                       JFK Medical Pavilion II Loan REMIC

            As provided herein, the JFK Medical Pavilion II Loan will be treated
as a separate REMIC for federal income tax purposes pursuant to the REMIC
Declaration dated as of February 2, 2005 (the "REMIC Declaration"), and such
REMIC will be designated as the "JFK Medical Pavilion II Loan REMIC." The JFK
Medical Pavilion II Loan REMIC Regular Interest (as defined herein) will
evidence the "regular interest" in the JFK Medical Pavilion II Loan REMIC and
will be held as an asset of REMIC I. The sole class of "residual interests" in
the JFK Medical Pavilion II Loan REMIC created under the REMIC Declaration will
be the JFK Medical Pavilion II Loan REMIC Residual Interest and will be
evidenced by the Class LR Certificates.

            The parties intend that the portions of the Trust Fund representing
the Excess Interest, the JFK Medical Pavilion II Loan REMIC Residual Interest
and the Grantor Trust Distribution Account shall be treated as a grantor trust
under subpart E of Part 1 of subchapter J of Chapter 1 of Subtitle A of the
Code, that the Class V Certificates shall represent undivided beneficial
interests in the Excess Interest and the related proceeds thereof in the Grantor
Trust Distribution Account and that the Class LR Certificates shall represent
undivided beneficial interests in the JFK Medical Pavilion II Loan REMIC
Residual Interest and the related proceeds thereof in the Grantor Trust
Distribution Account.

            As of the close of business on the Cut-off Date (as defined herein),
the Trust Mortgage 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 $1,510,367,836.

            In consideration of the mutual agreements herein contained, the
parties hereto agree as follows:

                                   ARTICLE I

                  DEFINITIONS; GENERAL INTERPRETIVE PRINCIPLES;
              CERTAIN CALCULATIONS IN RESPECT OF THE MORTGAGE POOL

            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
Section 1.01, subject to modification in accordance with Section 1.04.

            "30/360 Basis": The accrual of interest calculated on the basis of 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 any GMACCM Fixed Interest Amount Loan during the related GMACCM
Fixed Interest Period.

            "30/360 Trust Mortgage Loan": A Trust Mortgage Loan that is a 30/360
Mortgage Loan.

            "A Loan": Each CBA A Loan, each of which is senior in right of
payment to the related B Loan(s), if any, in accordance with the related
Intercreditor Agreement.

            "Acceptable Insurance Default": With respect to any Mortgage Loan,
any default under the related Mortgage Loan Documents resulting from (a) the
exclusion of acts of terrorism from coverage under the related all risk casualty
insurance policy maintained on the subject Mortgaged Property and (b) the
related Borrower's failure to obtain insurance that specifically covers acts of
terrorism, but only if the Special Servicer has determined, in its reasonable
judgment, that (i) such insurance is not available at commercially reasonable
rates and the subject hazards are not at the time commonly insured against for
real properties similar to the subject Mortgaged Property and located in and
around the region in which the subject Mortgaged Property is located or (ii)
such insurance is not available at any rate.

            "Accountant's Statement": As defined in Section 3.14.

            "Accrued Certificate Interest Amount": With respect to each
Distribution Date and each Class of Regular Certificates, an amount equal to
interest for the related Interest Accrual Period at the Pass-Through Rate
applicable to such Class of Certificates for such Distribution Date, accrued on
the related Certificate Balance of such Class (or, in the case of the Class A-X
and A-SP Certificates, on the Notional Balance thereof) immediately prior to
such Distribution Date. The Accrued Certificate Interest Amount for each such
Class shall be calculated on the basis of a 360-day year composed of twelve
30-day months.

            "Accrued Component Interest": With respect to each Component of the
Class A-X and Class A-SP Certificates for any Distribution Date, one month's
interest at the Class A-X Strip Rate or Class A-SP Strip Rate applicable to such
Component for such Distribution Date, accrued on the Component Notional Amount
of such Component outstanding immediately prior to such Distribution Date.
Accrued Component Interest shall be calculated on the basis of a 360-day year
composed of twelve 30-day months and, with respect to any Component and any
Distribution Date, shall be deemed to accrue during the calendar month preceding
the month in which such Distribution Date occurs.

            "Acquisition Date": With respect to any REO Property, the first day
on which such REO Property is considered to be acquired on behalf of the Trust
Fund and REMIC I and, if applicable, the related B Loan Holder, or with respect
to the JFK Medical Pavilion II Loan, the JFK Medical Pavilion II Loan REMIC,
within the meaning of Treasury Regulations Section 1.856-6(b)(1), which is the
first day on which REMIC I or the JFK Medical Pavilion II Loan REMIC is treated
as the owner of the Trust Fund's interest in such REO Property for federal
income tax purposes.

            "Actual/360 Basis": The accrual of interest calculated on the basis
of the actual number of days elapsed during any calendar month (or other
applicable recurring accrual period) in a year assumed to consist of 360 days.

            "Actual/360 Mortgage Loan": A Mortgage Loan that accrues interest on
an Actual/360 Basis or any GMACCM Fixed Interest Amount Loan after the
expiration of the related GMACCM Fixed Interest Period.

            "Actual/360 Trust Mortgage Loan": A Trust Mortgage Loan that is an
Actual/360 Mortgage Loan.

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

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

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

            "Additional Trust Fund Expense": Any expense (other than Master
Servicing Fees and Trustee Fees) experienced with respect to the Trust Fund and
not otherwise included in the calculation of a Realized Loss that would result
in the Holders of any Class of Certificates receiving less than the total of
their Optimal Interest Distribution Amount and Remaining Principal Distribution
Amount for any Distribution Date.

            "Administrative Fee Rate": With respect to each Mortgage Loan (and
any successor REO Mortgage Loan with respect thereto), the sum of the Master
Servicing Fee Rate, if applicable, and the Trustee Fee Rate.

            "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 Grantor Trust Event": Any impairment of the status of the
Grantor Trust Pool as a Grantor Trust or the imposition of a tax upon either the
Grantor Trust Pool or any of its assets or transactions.

            "Adverse Rating Event": With respect to any Class of Rated
Certificates and each Rating Agency that has assigned a rating thereto, as of
any date of determination, the qualification, downgrade or withdrawal of the
rating then assigned to such Class of Rated Certificates by such Rating Agency
(or the placing of such Class of Rated Certificates on "negative credit watch"
status in contemplation of any such action with respect thereto).

            "Adverse REMIC Event": Either (i) any impairment of the status of
any REMIC Pool as a REMIC or (ii) except as permitted by Section 3.17(a), the
imposition of a tax upon any REMIC Pool or any of its assets or transactions
(including the tax on prohibited transactions as defined in Section 860F(a)(2)
of the Code and the tax on contributions set forth in Section 860G(d) of the
Code).

            "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, as it may be
amended, modified, supplemented or restated following the Closing Date.

            "AICPA": As defined in Section 3.14.

            "A.M. Best": A.M. Best Company or its successor in interest.

            "Anticipated Repayment Date": With respect to any ARD Mortgage Loan,
the date specified in the related Note, as of which Excess Interest shall begin
to accrue on such Mortgage Loan, which date is prior to the Maturity Date for
such Mortgage Loan.

            "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
Mortgage Loan (and for any A Loan, subject to the following paragraphs) as to
which an Appraisal Reduction Event has occurred, an amount calculated monthly by
the Special Servicer as of (and reported to the Master Servicer and the Trustee
no later than) the related Determination Date equal to the excess, if any, of
(1) the Stated Principal Balance of the subject Mortgage Loan over (2) the
excess, if any, of (i) the sum of (A) 90% of the Appraised Value of the related
Mortgaged Property as determined (I) with respect to any Mortgage Loan with an
outstanding principal balance equal to or greater than $2,000,000, by an
Appraisal (or an update of a prior Appraisal) (the costs of which shall be paid
by the Master Servicer as a Servicing Advance) or (II) with respect to any
Mortgage 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 Master Servicer as a Servicing Advance) or an internal valuation
performed by the Special Servicer, plus (B) any letter of credit, reserve,
escrow or similar amount held by the Master Servicer which may be applied to
payments on the subject Mortgage Loan, over (ii) the sum of (X) to the extent
not previously advanced by the Master Servicer or the Trustee, all unpaid
interest on the subject Mortgage Loan at a per annum rate equal to its Mortgage
Rate, (Y) all unreimbursed Advances in respect of the subject Mortgage 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 the subject
Mortgage Loan (which taxes, assessments, premiums, ground rents and other
amounts have not been subject to an Advance by the Master Servicer or the
Trustee and/or for which funds have not been escrowed); 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 the
subject Mortgage 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 subject Appraisal Reduction Amount shall be equal to 25% of the Stated
Principal Balance of the subject Mortgage 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 the above references to "Mortgage
Loan" in this definition shall mean the related REO Mortgage Loan.

            In the case of any CBA A Loan (or any successor REO Mortgage
Loan with respect thereto), any Appraisal Reduction Amount will be calculated in
respect of the related CBA A/B Mortgage Loan Combination (or any successor REO
Mortgage Loans with respect thereto) as if it was a single Trust Mortgage Loan
(or a single REO Mortgage Loan), and any Appraisal Reduction Amount shall first
be allocated to the related CBA B Loan (or any successor REO Mortgage Loan with
respect thereto) up to the outstanding principal balance of such CBA B Loan (or
REO Mortgage 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 Mortgage Loan with respect thereto). Notwithstanding anything herein to the
contrary, the aggregate Appraisal Reduction Amount related to a Trust Mortgage
Loan or the related REO Property will be reduced to zero as of the date such
Trust Mortgage Loan is paid in full, liquidated, repurchased or otherwise
removed from the Trust Fund.

            "Appraisal Reduction Event": With respect to any Mortgage 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 Mortgage Loan, (ii)
the date on which a reduction in the amount of Monthly Payments on such Mortgage
Loan, or a change in any other material economic term of such Mortgage 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 Mortgage Loan by
the Special Servicer, (iii) 60 days after a receiver has been appointed for the
Borrower of 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 the related Mortgaged
Property becomes an REO Property; provided, however, that an Appraisal Reduction
Event shall not be deemed to occur at any time on and after the dates when the
aggregate Certificate Balances of all Classes of Principal Balance Certificates
(other than the Class A-P&I Certificates) have been reduced to zero. The Special
Servicer shall notify the Master Servicer and, with respect to any Mortgage Loan
Combination, the related B Loan Holder, promptly upon the occurrence of any of
the foregoing events.

            "Appraised Value": With respect to any Mortgaged Property, the
appraised value thereof as determined by an Appraisal.

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

            "ARD Mortgage Loan": Any Mortgage Loan that provides for the accrual
of Excess Interest thereon if such Mortgage Loan is not paid in full on or prior
to its Anticipated Repayment Date.

            "ARD Trust Mortgage Loan": A Trust Mortgage Loan that is an ARD
Mortgage Loan.

            "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 Collection Period and
with respect to any Mortgage Loan that is delinquent in respect of its Balloon
Payment (and any successor REO Mortgage Loan with respect thereto as to which
the Balloon Payment would have been past due), an amount equal to the sum of:
(a) the principal portion of the Monthly Payment that would have been due on
such Mortgage 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 Mortgage Loan; and (b) one month's interest on the
Stated Principal Balance of such Mortgage Loan (or REO Mortgage Loan)
immediately prior to the related Distribution Date (or, in the case of a B Loan
or any successor REO B Loan with respect thereto, the outstanding principal
balance thereof during the corresponding Mortgage Interest Accrual Period) at
the applicable Mortgage Rate. For any Collection Period and any REO Mortgage
Loan that is not delinquent in respect of its Balloon Payment, an amount equal
to the sum of: (a) the principal portion of the Monthly Payment that would have
been due on the related Mortgage Loan on the related Due Date based on the
original amortization schedule thereof (as calculated with interest at the
related Mortgage Rate, less any applicable Excess Rate), if applicable, assuming
the related Mortgaged Property had not become an REO Property, after giving
effect to any modification of the related Mortgage Loan; and (b) one month's
interest on the Stated Principal Balance of such REO Mortgage Loan immediately
prior to the related Distribution Date (or, in the case of an REO B Loan, the
outstanding principal balance thereof during the corresponding Mortgage Interest
Accrual Period) at the applicable Mortgage Rate (less any applicable Excess
Rate).

            "ASTM": The American Society for Testing and Materials.

            "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 Mortgage
      Pool and on deposit in the Collection Account as of the close of business
      on the related Determination Date, exclusive of the following amounts
      (without duplication):

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

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

                  (iii) all amounts that are payable or reimbursable to any
            Person pursuant to clauses (ii) through (ix), inclusive, of Section
            3.05(b);

                  (iv) all Yield Maintenance Charges;

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

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

                  (vii) if such Distribution Date occurs in February of 2006 or
            any year thereafter or in January of 2006 or any year thereafter
            that is not a leap year, 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) amounts payable to any B Loan Holder pursuant to the
            terms of the related Intercreditor Agreement;

                  (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 Trust Mortgage
      Loans from the REO Account to the Collection Account for such Distribution
      Date pursuant to Section 3.16(c);

            (c) if and to the extent not already included in clause (a) hereof,
      the aggregate amount transferred with respect to any A Loan (or any
      successor REO Trust Mortgage Loan with respect thereto) from the related
      Mortgage Loan Combination Custodial Account to the Collection Account, in
      any event for such Distribution Date pursuant to Section 3.04;

            (d) the aggregate amount of any P&I Advances made in respect of the
      Trust Mortgage Loans by the Master Servicer 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 or Workout
      Fees);

            (e) all funds released from the Interest Reserve Account for
      distribution on such Distribution Date.

            (f) any payments required to be made by the Master Servicer pursuant
      to Section 3.02(c) in respect of such Distribution Date; and

            (g) if and to the extent not already included in clause (a) hereof,
      the aggregate amount transferred (pursuant to Section 3.04(d)) from the
      Excess Liquidation Proceeds Account to the Distribution Account in respect
      of such Distribution Date.

            "B Loan": With respect to each A Loan, the other mortgage loan(s)
that (i) is not included in the Trust Fund, (ii) is subordinate in right of
payment to such A Loan to the extent set forth in the related CBA A/B
Intercreditor Agreement, and (iii) is secured, on the date hereof, by the same
Mortgage on the same Mortgaged Property as such A Loan.

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

            "Balloon Mortgage Loan": Any Mortgage Loan that by its terms
provides for an amortization schedule extending materially beyond its Maturity
Date or for no amortization until its Maturity Date.

            "Balloon Trust Mortgage Loan": A Trust Mortgage Loan that is a
Balloon Mortgage Loan.

            "Balloon Payment": With respect to any Balloon Mortgage Loan and any
date of determination, the scheduled payment of principal due on the Maturity
Date of such Mortgage 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).

            "Base Interest Fraction": With respect to any Principal Prepayment
on any Mortgage Loan and any of the Class A-1, Class A-2, Class A-3, Class A-AB,
Class A-4, Class, Class A-J, Class B, Class C, Class D, Class E, Class F, Class
G and Class H Certificates, 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 exceeds (ii) the Yield Rate used in calculating the Yield
Maintenance Charge with respect to such Principal Prepayment and (b) whose
denominator is the amount, if any, by which the (i) Mortgage Rate on such
Mortgage Loan exceeds (ii) the Yield Rate (as provided by the Master Servicer)
used in calculating the Yield Maintenance Charge with respect to such Principal
Prepayment; provided, however, that if such Yield Rate is greater than or equal
to the lesser of (x) the Mortgage Rate on such Mortgage Loan and (y) the
Pass-Through Rate described in clause (a)(i) above, then the Base Interest
Fraction shall be zero.

            "Base Prospectus": That certain prospectus dated February 18, 2005,
relating to trust funds established by the Depositor and publicly offered
mortgage pass-through certificates evidencing interests therein.

            "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 Mortgage 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": With respect to any Trust Mortgage Loan, as defined in the
related Mortgage Loan Purchase Agreement.

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

            "Cash Collateral Account": With respect to any Mortgage 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 Mortgage 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 Mortgage Loan and
Section 3.06, which Person shall, if required under the Code, be taxed on all
reinvestment income or gain thereon. The Master Servicer shall be permitted to
make withdrawals therefrom solely for deposit into the Collection Account or a
Servicing Account, or to remit to Borrower as required by the related loan
documents, as applicable. To the extent not inconsistent with the terms of the
related Mortgage Loan Documents, each such Cash Collateral Account shall be an
Eligible Account.

            "Cash Collateral Account Agreement": With respect to any Mortgage
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/B Intercreditor Agreement": With respect to each CBA A/B
Mortgage Loan Combination, the related Intercreditor Agreement Among Note
Holders by and between Column, as the initial holder of the related A Loan, and
CBA-Mezzanine Capital Finance, LLC, as the initial holder of the related B Loan.

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

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

            "CBA A Loan": The Mortgage Loans identified on Exhibit B hereto as
Columbia III Shopping Center, El Dorado Shopping Center, Fiddlers Cove, Garden
City Apartments, Trails of Windfern Apartments, Sunridge Plaza Phase II,
Brookhaven Apartments and Regency Apartments-Milwaukee, which are senior in
right of payment to the related CBA B Loan, to the extent set forth in the
related CBA A/B Intercreditor Agreement.

            "CBA B Loan": With respect to each CBA A Loan, the related B Loan
not included in the Trust.

            "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 2005-C1, as executed by the Trustee or the
Certificate Registrar and authenticated and delivered hereunder by the
Certificate Registrar.

            "Certificate Balance": With respect to any Class of Regular
Certificates (other than the Class A-X and Class A-SP Certificates), (i) on or
prior to the first Distribution Date, an amount equal to the Original
Certificate Balance of such Class as specified in the Preliminary Statement
hereto, and (ii) as of any date of determination after the first Distribution
Date, the Certificate Balance of such Class on the Distribution Date immediately
prior to such date of determination (determined as adjusted pursuant to Section
1.03(h)).

            "Certificateholder" or "Holder": The Person in whose name a
Certificate is registered in the Certificate Register; provided, however, that:
(i) neither a Disqualified Organization nor a Non-United States Tax Person shall
be a "Holder" of, or a "Certificateholder" with respect to, a Class R or Class
LR Certificate for any purpose hereof; and (ii) solely for purposes of giving
any consent, approval, direction or waiver pursuant to this Agreement that
specifically relates to the rights, duties and/or obligations hereunder of the
Depositor, the Master Servicer, the Special Servicer or the Trustee in its
respective capacity as such (other than any consent, approval or waiver
contemplated by any of Sections 3.21, 3.31 and 7.01(c) or by the Series 2005-C1
Directing Certificateholder in its capacity as such), any Certificate registered
in the name of such party or in the name of any Affiliate thereof 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 that
specifically relates to such party has been obtained. The Certificate Registrar
shall be entitled to request and conclusively rely upon a certificate of the
Depositor, the Master Servicer or the Special Servicer in determining whether a
Certificate is registered in the name of an Affiliate of such Person. All
references herein to "Certificateholders" or "Holders" shall reflect the rights
of Certificate Owners only insofar as they may indirectly exercise such rights
through the Depository and the Depository Participants (except as otherwise
specified herein), it being herein acknowledged and agreed that the parties
hereto shall be required to recognize as a "Certificateholder" or "Holder" only
the Person in whose name a Certificate is registered in the Certificate
Register.

            "Certificateholder Reports": Collectively, the Trustee Report and
the CMSA Investor Reporting Package.

            "Certificate Notional Amount": With respect to any Class A-X or
Class A-SP 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 or Class
A-SP Notional Amount, as applicable.

            "Certificate Owner": With respect to any 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 Register": The register maintained pursuant to Section
5.02.

            "Certificate Registrar": Wells Fargo, in its capacity as certificate
registrar, or any successor certificate registrar appointed as herein provided.

            "Certification Parties": As defined in Section 3.26(b).

            "Certifying Person": As defined in Section 3.26(b).

            "Class": Collectively, all of the Certificates bearing the same
alphabetic or alphanumeric class designation and having the same payment terms.
The respective Classes of Certificates are designated in Section 5.01(a).

            "Class": With respect to any Certificates or Uncertificated REMIC I
Interests, all of the Certificates or Uncertificated REMIC I Interests bearing
the same alphabetical and, if applicable, numerical class designation.

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

            "Class A-1 Pass-Through Rate": 4.3460% per annum.

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

            "Class A-2 Pass-Through Rate": 4.6090% per annum.

            "Class A-3 Certificate": A Certificate designated as "Class A-3" on
the face thereof, substantially in the form of Exhibit A-2 hereto.

            "Class A-3 Pass-Through Rate": 4.8130% per annum.

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

            "Class A-AB Pass-Through Rate": 4.8150% per annum.

            "Class A-4 Certificate": A Certificate designated as "Class A-4" on
the face thereof, substantially in the form of Exhibit A-2 hereto.

            "Class A-4 Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.0140% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "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) 5.0750% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class A-P&I Certificates": The Class A-1, Class A-2, Class A-3,
Class A-AB and Class A-4 Certificates, collectively.

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

            "Class A-SP Component": Each of Component A-1-2, Component A-1-3,
Component A-2-1, Component A-2-2, Component A-2-3, Component A-3-1, Component
A-3-2, Component A-AB-1, Component A-AB-2, Component A-4-1, Component A-4-2,
Component A-J, Component B, Component C-1, Component C-2, Component D-1,
Component D-2, Component E-1, Component E-2, Component F, Component G-1 and
Component G-2.

            "Class A-SP Notional Amount": As of any date of determination, the
sum of the then Component Notional Amounts of the Class A-SP Components that
have not reached their Component Crossover 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 Pass-Through Rate for
such Distribution Date and (II) the I/O Split 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-SP Pass-Through Rate": As to any Distribution Date, the per
annum rate, expressed as a percentage, equal to the weighted average of the
Class A-SP Strip Rates of the Class A-SP Components (weighted on the basis of
their respective Component Notional Amounts) for such Distribution Date.

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

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

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

            "Class A-X Pass-Through Rate": The per annum rate, expressed as a
percentage, equal to the weighted average of the Class A-X Strip Rates of the
Class A-X Components (weighted on the basis of their respective Component
Notional Amounts) for 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 Pass-Through 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 Pass-Through 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 Pass-Through 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 B Certificate": A Certificate designated as "Class B" on the
face thereof, in the form of Exhibit A-2 hereto.

            "Class B Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.1240% 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, in the form of Exhibit A-2 hereto.

            "Class C Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.1440% 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, in the form of Exhibit A-2 hereto.

            "Class D Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 5.2030% 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, 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) 5.2920% 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, in the form of Exhibit A-3 hereto.

            "Class F Pass-Through Rate": 4.8210% per annum.

            "Class G Certificate": A Certificate designated as "Class G" on the
face thereof, 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) 4.9650% 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, 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) 5.4460% 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, 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) 4.8550% 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, 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 lesser of (i) 4.8550% and (ii) 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, 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) 4.8550% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class LA-1-1 Uncertificated Interest": A regular interest in REMIC
I that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LA-1-2 Uncertificated Interest": A regular interest in REMIC
I that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LA-1-3 Uncertificated Interest": A regular interest in REMIC
I that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LA-2-1 Uncertificated Interest": A regular interest in REMIC
I that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LA-2-2 Uncertificated Interest": A regular interest in REMIC
I that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LA-2-3 Uncertificated Interest": A regular interest in REMIC
I that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LA-3-1 Uncertificated Interest": A regular interest in REMIC
I that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LA-3-2 Uncertificated Interest": A regular interest in REMIC
I that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LA-AB-1 Uncertificated Interest": A regular interest in REMIC
I that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LA-AB-2 Uncertificated Interest": A regular interest in REMIC
I that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LA-4-1 Uncertificated Interest": A regular interest in REMIC
I that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LA-4-2 Uncertificated Interest": A regular interest in REMIC
I that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LA-J Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LB Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LC-1 Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LC-2 Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LD-1 Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LD-2 Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LE-1 Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LE-2 Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LF Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LG-1 Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LG-2 Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LH Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LJ Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LK Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LL Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LM Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LN Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LO Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

            "Class LP Uncertificated Interest": A regular interest in REMIC I
that is held as an asset of REMIC II and having the Original REMIC I Principal
Amount and per annum rate of interest set forth in the Preliminary Statement
hereto.

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

            "Class M Certificate": A Certificate designated as "Class M" on the
face thereof, in the form of Exhibit A-6 hereto.

            "Class M Pass-Through Rate": As to any Distribution Date, a per
annum rate equal to the lesser of (i) 4.8550% 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, 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) 4.8550% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class O Certificate": A Certificate designated as "Class O" on the
face thereof, 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) 4.8550% 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, 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) 4.8550% and (ii) the Weighted Average Net
Mortgage Pass-Through Rate for such Distribution Date.

            "Class R Certificate": A Certificate designated as "Class R" on the
face thereof, in the form of Exhibit A-8 hereto.

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

            "Class Principal Balance": The aggregate principal balance
outstanding from time to time of any Class of Principal Balance Certificates.

            "Clearstream": Clearstream Banking, societe anonyme or any
successor.

            "Closing Date": March 17, 2005.

            "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 Servicer and reasonably acceptable to the Trustee, the Special
Servicer and the Series 2005-C1 Directing Certificateholder.

            "CMSA Bond Level File": A report 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.

            "CMSA Collateral Summary File": A report 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.

            "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 as may from time to time be recommended by the CMSA for commercial
mortgage-backed securities transactions generally.

            "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 recommended
by the CMSA for commercial mortgage-backed securities transactions generally.

            "CMSA Financial File": A report 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.

            "CMSA Historical Liquidation Report": A report substantially in the
form of, and containing the information called for in, the downloadable form of
the "Historical Liquidation 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 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.

            "CMSA Investor Reporting Package": Collectively:

            (a) the following six 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 and (vi) CMSA Collateral Summary
      File; and

            (b) the following nine supplemental reports: (i) CMSA Delinquent
      Loan Status Report, (ii) CMSA Historical Loan Modification and Corrected
      Mortgage Loan Report, (iii) CMSA Historical Liquidation Report, (iv) CMSA
      REO Status Report, (v) CMSA Operating Statement Analysis Report, (vi) CMSA
      Comparative Financial Status Report, (vii) CMSA Servicer Watch List,
      (viii) CMSA Loan Level Reserve/LOC Report and (ix) CMSA NOI Adjustment
      Worksheet.

            "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" 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 Loan Periodic Update File": A monthly report 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.

            "CMSA Loan Setup File": A report substantially in the form of, and
containing the information called for in, the downloadable form of the "Mortgage
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.

            "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.

            "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 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 Property File": A report 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.

            "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.

            "CMSA Servicer Watch List": A report substantially in the form of,
and containing the information called for in, the downloadable form of "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.

            "CMSA Special Servicer Loan File": A report 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.

            "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, could be applied to the Trust or the Certificates.

            "Collection Account": One or more separate custodial accounts or,
subject to Section 3.04(h), sub-accounts created and maintained by the Master
Servicer pursuant to Section 3.04(a) in the name of the Trustee on behalf of the
Certificateholders, into which the amounts set forth in Section 3.04(a) shall be
deposited directly, which, subject to Section 3.04(h), shall be entitled
substantially as follows: "GMAC Commercial Mortgage Corporation [or the name of
any successor Master Servicer], in trust for Wells Fargo Bank, N.A. [or the name
of any successor Trustee], as Trustee, on behalf of Holders of Credit Suisse
First Boston Mortgage Securities Corp., Commercial Mortgage Pass-Through
Certificates, Series 2005-C1, Collection Account". The Collection Account shall
be an Eligible Account (or, subject to Section 3.04(h), a sub-account of an
Eligible Account) and, except for the Excess Interest held therein, shall be
part of REMIC I (except with respect to collections on the JFK Medical Pavilion
II Loan, which shall be part of the JFK Medical Pavilion II Loan REMIC).

            "Collection Period": With respect to any Distribution Date, the
period commencing on the date immediately following the Determination Date in
the calendar month preceding the month in which such Distribution Date occurs
(or, in the case of the initial Distribution Date, commencing as of the Closing
Date) and ending on and including the Determination Date in the calendar month
in which such Distribution Date occurs.

            "Column": As defined in the Preliminary Statement to this Agreement.

            "Column Mortgage Loan Purchase Agreement": As defined in the
Preliminary Statement to this Agreement.

            "Column Performance Guarantee": The Guarantee dated as of March 1,
2005, from the Column Performance Guarantor in favor of the Trustee, relating to
the obligations of Column under Section 7 of the Column Mortgage Loan Purchase
Agreement.

            "Column Performance Guarantor": Credit Suisse First Boston acting
through the Cayman Branch, its successor in interest or any successor guarantor
under the Column Performance Guarantee.

            "Column Trust Mortgage  Loan":  Any Trust Mortgage Loan that
is either an Original Column Trust Mortgage Loan or a Replacement Trust Mortgage
Loan that was delivered under the Column Mortgage Loan Purchase Agreement or the
Column Performance Guarantee in substitution for an Original Column Trust
Mortgage Loan.

            "Commission": The Securities and Exchange Commission.

            "Component": Each of Component A-1-1, Component A-1-2, Component
A-1-3, Component A-2-1, Component A-2-2, Component A-2-3, Component A-AB-1,
Component A-AB-2, Component A-3-1, Component A-3-2, Component A-4-1, Component
A-4-2, Component A-J, Component B, Component C-1, Component C-2, Component D-1,
Component D-2, Component E-1, Component E-2, Component F, Component G-1,
Component G-2, Component H, Component J, Component K, Component L, Component M,
Component N, Component O and Component P.

            "Component A-1-1": One of thirty-one components of the Class A-X
Certificates having a Component Notional Amount equal to the then current REMIC
I Principal Amount of the Class LA-1-1 Uncertificated Interest as of any date of
determination.

            "Component A-1-2": One of thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LA-1-2 Uncertificated Interest as of any date of
determination.

            "Component A-1-3": One of thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LA-1-3 Uncertificated Interest as of any date of
determination.

            "Component A-2-1": One of thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LA-2-1 Uncertificated Interest as of any date of
determination.

            "Component A-2-2": One of thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LA-2-2 Uncertificated Interest as of any date of
determination.

            "Component A-2-3": One of thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LA-2-3 Uncertificated Interest as of any date of
determination.

            "Component A-3-1": One of thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LA-3-1 Uncertificated Interest as of any date of
determination.

            "Component A-3-2": One of thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LA-3-2 Uncertificated Interest as of any date of
determination.

            "Component A-AB-1": One of thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LA-AB-1 Uncertificated Interest as of any date of
determination.

            "Component A-AB-2": One of thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LA-AB-2 Uncertificated Interest as of any date of
determination.

            "Component A-4-1": One of thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LA-4-1 Uncertificated Interest as of any date of
determination.

            "Component A-4-2": One of thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LA-4-2 Uncertificated Interest as of any date of
determination.

            "Component A-J": One of thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LA-J Uncertificated Interest as of any date of
determination.

            "Component B": One of the thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LB Uncertificated Interest as of any date of determination.

            "Component C-1": One of the thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LC-1 Uncertificated Interest as of any date of
determination.

            "Component C-2": One of the thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LC-2 Uncertificated 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
--------------------                          ------------------------
Component A-1-2                               March 2006 Distribution Date
Components A-2-1 and A-1-3                    March 2007 Distribution Date
Component A-2-2 and G-1                       March 2008 Distribution Date
Components A-2-3, A-3-1, E-1, F and G-2       March 2009 Distribution Date
Components A-AB-1, A-3-2, D-1 and E-2         March 2010 Distribution Date
Components A-AB-2, A-4-1, C-1 and D-2         March 2011 Distribution Date
Components A-J, A-4-2, B and C-2              March 2012 Distribution Date

            "Component D-1": One of the thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LD-1 Uncertificated Interest as of any date of
determination.

            "Component D-2": One of the thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LD-2 Uncertificated Interest as of any date of
determination.

            "Component E-1": One of the thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LE-1 Uncertificated Interest as of any date of
determination.

            "Component E-2": One of the thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LE-2 Uncertificated Interest as of any date of
determination.

            "Component F": One of the thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LF Uncertificated Interest as of any date of determination.

            "Component G-1": One of the thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LG-1 Uncertificated Interest as of any date of
determination.

            "Component G-2": One of the thirty-one components of the Class A-X
Certificates and one of the twenty-two components of the Class A-SP Certificates
having a Component Notional Amount equal to the then current REMIC I Principal
Amount of the Class LG-2 Uncertificated Interest as of any date of
determination.

            "Component H": One of the thirty-one components of the Class A-X
Certificates having a Component Notional Amount equal to the then current REMIC
I Principal Amount of the Class LH Uncertificated Interest as of any date of
determination.

            "Component J": One of the thirty-one components of the Class A-X
Certificates having a Component Notional Amount equal to the then current REMIC
I Principal Amount of the Class LJ Uncertificated Interest as of any date of
determination.

            "Component K": One of the thirty-one components of the Class A-X
Certificates having a Component Notional Amount equal to the then current REMIC
I Principal Amount of the Class LK Uncertificated Interest as of any date of
determination.

            "Component L": One of the thirty-one components of the Class A-X
Certificates having a Component Notional Amount equal to the then current REMIC
I Principal Amount of the Class LL Uncertificated Interest as of any date of
determination.

            "Component M": One of the thirty-one components of the Class A-X
Certificates having a Component Notional Amount equal to the then current REMIC
I Principal Amount of the Class LM Uncertificated Interest as of any date of
determination.

            "Component N": One of the thirty-one components of the Class A-X
Certificates having a Component Notional Amount equal to the then current REMIC
I Principal Amount of the Class LN Uncertificated 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 REMIC I Principal Amount of
its Corresponding Uncertificated REMIC I Interest.

            "Component O": One of the thirty-one components of the Class A-X
Certificates having a Component Notional Amount equal to the then current REMIC
I Principal Amount of the Class LO Uncertificated Interest as of any date of
determination.

            "Component P": One of the thirty-one components of the Class A-X
Certificates having a Component Notional Amount equal to the then current REMIC
I Principal Amount of the Class LP Uncertificated Interest as of any date of
determination.

            "Confidential Offering Circular": The final Confidential Offering
Circular dated March 3, 2005, relating to certain Classes of the Non-Registered
Certificates delivered by the Depositor to CSFB LLC as of the Closing Date.

            "Controlling Class": As of any date of determination, the Class of
Principal Balance Certificates with the lowest payment priority pursuant to
Sections 4.01(a) and 4.01(b), that has a then outstanding Class Principal
Balance that is not less than 25% of its initial Class Principal Balance;
provided that, if no Class of Principal Balance Certificates has a Class
Principal Balance that satisfies the foregoing requirement, then the Controlling
Class shall be the Class of Principal Balance Certificates with the lowest
payment priority pursuant to Sections 4.01(a) and 4.01(b), that has a then
outstanding Class Principal Balance greater than zero. For purposes of this
definition, the respective Classes of the Class A-P&I Certificates shall be
treated as a single Class and, if appropriate under the terms of this
definition, shall collectively constitute the Controlling Class. As of the
Closing Date, the Controlling Class shall be the Class P Certificates.

            "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.

            "Corporate Trust Office": The corporate trust office of the Trustee
at which at any particular time its corporate trust business with respect to
this Agreement shall be administered, which office at the date of the execution
of this Agreement is located (i) for Certificate transfer purposes, at Sixth &
Marquette, Minneapolis, Minnesota 55479-0113, Attention: Credit Suisse First
Boston Mortgage Securities Corp., Commercial Mortgage Pass-Through Certificates,
Series 2005-C1 and (ii) for all other purposes, at 9062 Old Annapolis Road,
Columbia, Maryland 21045-1951, Attention: Credit Suisse First Boston Mortgage
Securities Corp., Commercial Mortgage Pass-Through Certificates, Series 2005-C1.

            "Corrected Mortgage Loan": Any Corrected Trust Mortgage Loan or any
B Loan as to which the related Trust Mortgage Loan is a Corrected Mortgage Loan
as described in the definition of "Servicing Transfer Event".

            "Corrected Trust Mortgage Loan": Any Trust Mortgage Loan that had
been a Specially Serviced Trust Mortgage Loan but as to which all Servicing
Transfer Events have ceased to exist.

            "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.

            "Cross-Collateralized Group": Any group of Crossed Trust Mortgage
Loans.

            "Crossed Trust Mortgage Loan": Any Trust Mortgage Loan which is
cross-defaulted and cross-collateralized with any other Trust Mortgage Loan. For
the avoidance of doubt, none of the CBA A Loans shall be deemed a Crossed Trust
Mortgage Loan under this Agreement.

            "Crossed Trust Mortgage Loan Repurchase Criteria": (i) The Debt
Service Coverage Ratio for all remaining related Crossed Trust Mortgage Loans
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 Trust Mortgage Loans, including the affected
Crossed Trust Mortgage Loan, for the four calendar quarters immediately
preceding the repurchase or substitution and (b) 1.25x, (ii) the loan-to-value
ratio for any remaining related Crossed Trust Mortgage Loans determined at the
time of repurchase or substitution based upon an Appraisal obtained by the
Special Servicer at the expense of the related Mortgage Loan Seller is not
greater than the lesser of (a) the loan-to-value ratio for all such related
Crossed Trust Mortgage Loans, including the affected Crossed Trust Mortgage Loan
set forth in the tables on Exhibit A-1 to the Prospectus Supplement, (b) the
loan-to-value ratio for all such related Crossed Trust Mortgage Loans, including
the affected Crossed Trust Mortgage Loan, determined at the time of repurchase
or substitution based upon an Appraisal obtained by the Special Servicer at the
expense of the related Mortgage Loan Seller and (c) 75.0%, and (iii) the Trustee
receive an Opinion of Counsel (at the expense of the related Mortgage Loan
Seller) to the effect that such repurchase or substitution will not result in
the imposition of a tax on the assets of the Trust Fund or cause any REMIC Pool
to fail to qualify as a REMIC for federal or applicable state tax purposes at
any time that any of the Certificates are outstanding.

            "CSFB LLC": Credit Suisse First Boston LLC or its successor in
interest.

            "Cure Event": The exercise by any CBA B Loan Holder of the cure
rights, if any, set forth in the related Intercreditor Agreement, in each case
in accordance with the applicable Intercreditor Agreement.

            "Cure Payments": With respect to any Mortgage 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 Mortgage Loan, the
payments that such Junior Loan Holder makes to the Master Servicer, Special
Servicer or Trustee, 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 Master Servicer, Special Servicer or Trustee, as applicable (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 Mortgage Loan) during the period of time from the expiration of the
grace period under such Mortgage Loan that gave rise to such Cure Event until
such Cure Payment is made or such other cure is otherwise effected.

            "Custodian" shall mean a Person who is at any time appointed by the
Trustee pursuant to Section 8.12 as a document custodian for the Mortgage Files.

            "Cut-off Date": Individually and collectively, the respective Due
Dates for the Trust Mortgage Loans in March 2005.

            "Cut-off Date Principal Balance": With respect to any Original Trust
Mortgage Loan, the outstanding principal balance of such Trust Mortgage 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 Trust Mortgage
Loan 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 Trust
Mortgage Loan during such period.

            "Default Interest": With respect to any Mortgage Loan (or any
successor REO Mortgage Loan with respect thereto), any amounts collected
thereon, other than late payment charges or Yield Maintenance Charges, that
represent interest in excess of interest accrued on the principal balance of
such Trust Mortgage Loan (or REO Mortgage Loan) at the related Mortgage Rate,
such excess interest arising out of a default under such Mortgage Loan.

            "Defaulted Trust Mortgage Loan": A Trust Mortgage Loan that is at
least sixty days delinquent in respect of its Monthly Payments, or 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 Trust Mortgage Loan
becoming a Specially Serviced Trust Mortgage 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 Trust Mortgage Loan
has not been received.

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

            "Defeasance Collateral": As defined in Section 3.08(f).

            "Defeasance Mortgage Loan": As defined in Section 3.08(f).

            "Defect": With respect to any Trust Mortgage Loan, as defined in the
related Mortgage Loan Purchase Agreement.

            "Defective Trust Mortgage Loan": Any Trust Mortgage Loan as to which
there exists a Material Breach or a Material Defect that has not been cured in
all material respects.

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

            "Deleted Trust Mortgage Loan": A Defective Trust Mortgage Loan that
is purchased or repurchased, as the case may be, from the Trust or replaced with
one or more Replacement Trust Mortgage Loans, in either case as contemplated by
Section 2.03.

            "Depositor": As defined in the Preliminary Statement to this
Agreement.

            "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.

            "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 Master
Servicer or the Special Servicer on behalf of the Trustee) shall not be
considered to Directly Operate an REO Property solely because the Trustee (or
the Master Servicer or the 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.

            "Discount Rate": As defined in Section 4.01(d).

            "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
Trustee based upon an Opinion of Counsel provided to the Trustee (which shall
not be an expense of the Trustee) to the effect that the holding of an Ownership
Interest in a Residual Certificate by such Person may cause any REMIC Pool 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 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.

            "Distribution Account": The account, accounts or, subject to Section
3.04(h), sub-accounts created and maintained by the Trustee, pursuant to Section
3.04(b), in trust for the Certificateholders, which, subject to Section 3.04(h),
shall be entitled "Wells Fargo Bank, N.A. [or the name of any successor
Trustee], as Trustee, for the benefit of Holders of Credit Suisse First Boston
Mortgage Securities Corp., Commercial Mortgage Pass-Through Certificates, Series
2005-C1, Distribution Account". The Distribution Account shall be an Eligible
Account or, subject to Section 3.04(h), a subaccount of an Eligible Account.

            "Distribution Date": With respect to any calendar month, commencing
in April 2005, the fourth Business Day following the Determination Date in such
month.

            "Due Date": With respect to (i) any Mortgage 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 Mortgage Loan
after the Maturity Date therefor, the day of the month set forth in the related
Note on which each Monthly Payment on such Mortgage Loan had been scheduled to
be first due (without giving effect to any grace period) and (iii) any REO
Mortgage Loan, the day of the month set forth in the related Note on which each
Monthly Payment on the related Mortgage Loan had been scheduled to be first due
(without giving effect to any grace period).

            "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) the long-term unsecured debt obligations of which are
rated at least "AA-" by Fitch (or "A-" if the short-term debt obligations
thereof have a short-term rating of not less than "F-1" by Fitch) and "Aa3" by
Moody's, 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 "F-1" by Fitch and "P-1" by Moody's, 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) for so long as GMAC
Commercial Mortgage Corporation is acting as the Master Servicer, a segregated
trust account or accounts maintained at Escrow Bank, Midvale, Utah, or (iii)
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.
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 Mortgage Loan,
any insurance policy covering Insured Environmental Events that is maintained
from time to time in respect of such Mortgage 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 the 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": Euroclear Bank N.V./S.A., as operator of 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 Mortgage Loans
(and each REO Trust Mortgage Loan that relates to an ARD Trust Mortgage Loan),
interest accrued on such Mortgage Loan (or REO Trust Mortgage Loan) and
allocable to the Excess Rate. Insofar as it accrues on an ARD Trust Mortgage
Loan (or any REO Trust Mortgage Loan with respect thereto), Excess Interest is
an asset of the Trust Fund, but shall not be an asset of any REMIC Pool.

            "Excess Liquidation Proceeds": The excess, if any, of (a) the Net
Liquidation Proceeds from the sale or liquidation of a Specially Serviced
Mortgage Loan or, insofar as they are allocable to the related REO Mortgage
Loan, from the sale or liquidation of an REO Property, over (b) the sum of (i)
interest on any related Advances, (ii) any related Servicing Advances, and (iii)
the amount needed to pay off in full the subject Trust Mortgage Loan or related
REO Trust Mortgage Loan (or if related to a Mortgage Loan Combination, the
amount needed to pay off in full such Mortgage Loan Combination) and all amounts
due with respect thereto.

            "Excess Liquidation Proceeds Account": The account, accounts or,
subject to Section 3.04(h), sub-account created and maintained by the Trustee,
which, subject to Section 3.04(h), shall be entitled "Wells Fargo Bank, N.A. [or
the name of any successor Trustee], as Trustee, in trust for Holders of Credit
Suisse First Boston Mortgage Securities Corp., Commercial Mortgage Pass-Through
Certificates, Series 2005-C1, Excess Liquidation Proceeds Account", and which
shall be an Eligible Account or, subject to Section 3.04(h), a subaccount of an
Eligible Account. The Excess Liquidation Proceeds Account shall be an asset of
REMIC I.

            "Excess Rate": With respect to each ARD Mortgage Loan (and each REO
Trust Mortgage Loan that relates to an ARD Trust Mortgage Loan) after the
related Anticipated Repayment Date, the excess of (i) the applicable Revised
Rate over (ii) the applicable Mortgage Rate in effect immediately prior to the
related Anticipated Repayment Date.

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

            "Exchange Act Reports": All Current Reports on Form 8-K and Annual
Reports on Form 10-K that are to be filed with the Commission with respect to
the Trust as contemplated by Section 3.26.

            "Exemption-Favored Party": Any of (i) CSFB LLC, (ii) any Person
directly or indirectly, through one or more intermediaries, controlling,
controlled by or under common control with CSFB 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, Class LR 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.

            "Fidelity Bond": As defined in Section 3.07(c).

            "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 Special
Servicer with respect to any defaulted Mortgage Loan or 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.

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

            "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.

            "GMACCM": As defined in the Preliminary Statement to this Agreement.

            "GMACCM Fixed Interest Amount Loan": Any GMACCM Trust Mortgage Loan
the terms of which provide for the payment of a fixed amount of interest during
an interest-only period.

            "GMACCM Fixed Interest Period": With respect to any GMACCM Fixed
Interest Amount Loan, the period during which monthly debt service payments with
respect to such GMACCM Fixed Interest Amount Loan consist of the payment of
interest only.

            "GMACCM Mortgage Loan Purchase Agreement": As defined in the
Preliminary Statement to this Agreement.

            "GMACCM Trust Mortgage Loan": Any Trust Mortgage Loan that is either
an Original GMACCM Trust Mortgage Loan or a Replacement Trust Mortgage Loan that
was delivered under the GMACCM Mortgage Loan Purchase Agreement in substitution
for an Original GMACCM Trust Mortgage Loan.

            "Grantor Trust": A grantor trust as defined under subpart E of Part
1 of subchapter J of the Code.

            "Grantor Trust Distribution Account": The account, accounts or,
subject to Section 3.04(h), subaccount created and maintained by the Trustee,
which, subject to Section 3.04(h), shall be entitled "Wells Fargo Bank, N.A. [or
the name of any successor Trustee], as Trustee, in trust for Holders of Credit
Suisse First Boston Mortgage Securities Corp., Commercial Mortgage Pass-Through
Certificates, Series 2005-C1, Grantor Trust Distribution Account", and which
shall be an Eligible Account or, subject to Section 3.04(h), a subaccount of an
Eligible Account. The Grantor Trust Distribution Account shall not be an asset
of any REMIC Pool.

            "Grantor Trust Pool": The Grantor Trust Pool designated as such in
Section 2.05.

            "Ground Lease": The ground lease pursuant to which any Borrower
holds a leasehold interest in the related Mortgaged Property, together with any
estoppels or other agreements executed and delivered by the ground lessor in
favor of the lender under the related Mortgage Loan.

            "Hazardous Materials": Any dangerous, toxic or hazardous pollutants,
chemicals, wastes or substances, including those so identified pursuant to
CERCLA or any other federal, state or local environmental related laws and
regulations, and specifically including 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.

            "I/O Split Rate": With respect to any Distribution Date, the rate
per annum corresponding to the related Distribution Date as set forth on Exhibit
L hereto.

            "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, the Master Servicer, the Special Servicer, the Trustee 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, the Master Servicer, the Special Servicer or any Affiliate thereof
and (iii) is not connected with the Depositor, any Junior Loan Holder, the
Master Servicer, the 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, the Master Servicer, the
Special Servicer, the Trustee 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, any Junior Loan Holder, the Master Servicer,
the Special Servicer, the Trustee or any Affiliate thereof, as the case may be.

            "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 Master Servicer or the Trust, delivered to the
Trustee and the 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 the Master Servicer or
the Special Servicer shall not 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 Servicer and the Special Servicer) upon receipt by the Trustee and
the 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
(5) 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 Pool Balance": The aggregate Cut-off Date Principal Balance
of all the Original Trust Mortgage Loans.

            "Initial Purchaser": CSFB 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, savings 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 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 second preceding sentence, the most recent financial statements of such
transferee.

            "Insurance and Condemnation Proceeds": All proceeds (net of expenses
of collection, including attorney's fees and expenses) paid under any Insurance
Policy or in connection with the full or partial condemnation (or threatened
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 Mortgage 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 Mortgage Loan (or the related Mortgaged
Property) or such REO Property, as the case may be.

            "Insured Environmental Event": As defined in Section 3.07(j).

            "Intercreditor Agreement": The CBA A/B Intercreditor Agreement.

            "Interest Accrual Period": With respect to any Class of Regular
Certificates or Uncertificated REMIC I Interests or the JFK Medical Pavilion II
Loan REMIC Regular Interest and any Distribution Date, the calendar month
immediately preceding the month in which such Distribution Date occurs. Each
Interest Accrual Period shall be deemed for purposes of this definition to
consist of 30 days.

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

            "Interest Reserve Account": The account, accounts or, subject to
Section 3.04(h), sub-account created and maintained by the Trustee, pursuant to
Section 3.28, in trust for the Certificateholders, which, subject to Section
3.04(h), shall be entitled "Wells Fargo Bank, N.A. [or the name of any successor
Trustee], as Trustee, in trust for Holders of Credit Suisse First Boston
Mortgage Securities Corp., Commercial Mortgage Pass-Through Certificates, Series
2005-C1, Interest Reserve Account", and which shall be an Eligible Account or,
subject to Section 3.04(h), a sub-account of an Eligible Account.

            "Interest Reserve Loan": Any Actual/360 Trust Mortgage Loan (or
successor REO Trust Mortgage Loan with respect thereto) and, in the case of the
JFK Medical Pavilion II Loan, the JFK Medical Pavilion II Loan REMIC Regular
Interest.

            "Interest Shortfall Amount": As to any Distribution Date and any
Class of Regular Certificates, the amount, if any, by which the amount
distributed on such Class on such Distribution Date in respect of interest is
less than the amount due in respect of interest to such Class of Regular
Certificates.

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

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

            "IRS": The Internal Revenue Service or any successor.

            "Issue Price": With respect to each Class of Certificates, the
"issue price" as defined in the Code and Treasury regulations promulgated
thereunder.

            "JFK Medical Pavilion II Loan" shall mean the mortgage loan made by
GMACCM, as lender, to Aberdeen II Holding LLC, as borrower, with a Cut-off Date
Principal Balance of $4,588,868, that is included in the Trust Fund and secured
by the JFK Medical Pavilion II Property.

            "JFK Medical Pavilion II Property" shall mean the Mortgaged Property
identified on the Trust Mortgage Loan Schedule as "JFK Medical Pavilion II".

            "JFK Medical Pavilion II Loan REMIC" shall mean, the REMIC that was
created pursuant to the REMIC Declaration and that is constituted by the JFK
Medical Pavilion II 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 Trustee will make
an election to be treated as a "real estate mortgage investment conduit" within
the meaning of the REMIC Provisions.

            "JFK Medical Pavilion II Loan REMIC Regular Interest" shall mean the
uncertificated regular interest in the JFK Medical Pavilion II Loan. The
principal balance of the JFK Medical Pavilion II Loan REMIC Regular Interest
shall equal the outstanding Stated Principal Balance of the JFK Medical Pavilion
II 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 JFK Medical Pavilion II Loan (or any beneficial
interest in any related Mortgaged Property) shall be deemed distributable on the
JFK Medical Pavilion II Loan REMIC Regular Interest, and other collections of
amounts received on or in respect of the JFK Medical Pavilion II Loan shall be
deemed distributable to the Trust Fund other than on the JFK Medical Pavilion II
Loan REMIC Regular Interest.

            "JFK Medical Pavilion II Loan REMIC Residual Interest" shall mean,
the sole class of "residual interest" in the JFK Medical Pavilion II Loan REMIC,
represented by the Class LR Certificates.

            "Junior Loan": The CBA B Loans, each of which is subordinate in
right of payment to the related A Loan.

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

            "Late Collections": With respect to any Trust Mortgage Loan or any B
Loan, all amounts (except Penalty Charges) received thereon during any
Collection 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 Mortgage Loan (without regard to
any acceleration of amounts due thereunder by reason of default) on a Due Date
in a previous Collection Period and not previously received. With respect to any
REO Mortgage Loan, all amounts (except Penalty Charges) received in connection
with the related REO Property during any Collection 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 Mortgage Loan or the predecessor Mortgage Loan (without
regard to any acceleration of amounts due under the predecessor Mortgage Loan by
reason of default) on a Due Date in a previous Collection Period and not
previously received.

            "Lennar": As defined in the Preliminary Statement to this Agreement.

            "Letter of Credit":  With respect to any Mortgage  Loan, any
third-party  letter of credit delivered by or at the direction of the Borrower
pursuant to the terms of such Mortgage Loan in lieu of the  establishment  of,
or deposit otherwise required to be made into, a reserve fund.

            "Liquidation Event": With respect to any Mortgage Loan or REO
Property, any of the following events: (i) payment in full of such Mortgage
Loan; (ii) the making of a Final Recovery Determination with respect to such
Mortgage Loan or REO Property; (iii) in the case of a Trust Mortgage Loan, the
repurchase or replacement of such Trust Mortgage Loan by the related Mortgage
Loan Seller pursuant to Section 7 of the related Mortgage Loan Purchase
Agreement or by the Column Performance Guarantor pursuant to the Column
Performance Guarantee; (iv) in the case of a Defaulted Trust Mortgage Loan, the
purchase of such Trust Mortgage Loan by the Series 2005-C1 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 CBA A/B
Mortgage Loan Combination, the purchase of the related CBA A Loan by the related
B Loan Holder pursuant to the related CBA A/B Intercreditor Agreement; (vi) the
purchase of such Mortgage Loan by a related Mezzanine Loan Holder; (vii) the
sale or other liquidation of such REO Property hereunder; or (viii) the purchase
of such Mortgage Loan (if it is a Trust Mortgage Loan) or REO Property by the
Holders of more than 50% of the Percentage Interests in the Controlling Class,
the Special Servicer or the Master Servicer pursuant to Section 9.01.

            "Liquidation Expenses": All customary, reasonable and necessary
"out-of-pocket" costs and expenses due and owing (but not otherwise covered by
Servicing Advances) in connection with the liquidation of any Specially Serviced
Mortgage Loan or REO Property (including legal fees and expenses, committee or
referee fees and, if applicable, brokerage commissions and conveyance taxes).

            "Liquidation Fee": A fee payable to the Special Servicer with
respect to any Trust Mortgage Loan repurchased by the applicable Mortgage Loan
Seller (or guarantor) after the Initial Resolution Period as described in
Section 2.03 or any Specially Serviced Trust Mortgage Loan or REO Trust Mortgage
Loan as to which the Special Servicer receives a full, partial or discounted
payoff with respect thereto from the related Borrower or Mortgage Loan Seller
(or guarantor) or any Liquidation Proceeds with respect thereto, all as provided
in Section 3.11(b).

            "Liquidation Fee Rate": 1.0%.

            "Liquidation Proceeds": Cash amounts (other than Insurance and
Condemnation Proceeds and REO Revenues) received by the Master Servicer or
Special Servicer, in connection with: (i) the liquidation of a Mortgaged
Property or other collateral constituting security for a defaulted Mortgage Loan
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 Trust Mortgage Loan by the Series
2005-C1 Directing Certificateholder or the Special Servicer or any assignee or
Affiliate of either of the foregoing pursuant to Section 3.18; (iv) the
repurchase or replacement of a Trust Mortgage Loan by any Mortgage Loan Seller
pursuant to Section 7 of the related Mortgage Loan Purchase Agreement or, in the
case of a Column Trust Mortgage Loan, by the Column Performance Guarantor
pursuant to the Column Performance Guarantee; (v) the purchase of a CBA A Loan
by the related B Loan Holder pursuant to the related Intercreditor Agreement;
(vi) the purchase of any Mortgage Loan by a related Mezzanine Loan Holder; or
(vii) the purchase of all Trust Mortgage Loans and REO Properties by Holders of
more than 50% of the Percentage Interests in the Controlling Class, the Special
Servicer or the Master Servicer pursuant to Section 9.01.

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

            "Loan-to-Value Ratio": With respect to any Trust Mortgage Loan, as
of any date of determination, the fraction, expressed as a percentage, the
numerator of which is the principal balance of such Trust Mortgage Loan (or, in
the case of any CBA A Loan, of the CBA A/B Mortgage Loan Combination) 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 Mortgage 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 Mortgage Loan and Section 3.06, which Person shall, if required
under the Code, be taxed on all reinvestment income or gain thereon. The Master
Servicer shall be permitted to make withdrawals therefrom for deposit into the
related Cash Collateral Accounts.

            "Lock-Box Agreement": With respect to any Mortgage 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.

            "MAI": Member of the Appraisal Institute.

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

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

            "Master Servicer": GMACCM, in its capacity as master servicer
hereunder, or any successor master servicer appointed as herein provided.

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

            "Master Servicer Employees": As defined in Section 3.07(c).

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

            "Master Servicing Fee": With respect to each Trust Mortgage Loan and
REO Trust Mortgage Loan, the fee payable to the Master Servicer pursuant to the
first paragraph of Section 3.11(a). In the case of the JFK Medical Pavilion II
Loan, "Trust Mortgage Loan" shall refer to the JFK Medical Pavilion II Loan
REMIC Regular Interest for purposes of this definition as the context requires.

            "Master Servicing Fee Rate": With respect to each Trust Mortgage
Loan and REO Trust Mortgage Loan, the rate per annum specified as such on the
Trust Mortgage Loan Schedule. In the case of the JFK Medical Pavilion II Loan,
"Trust Mortgage Loan" shall refer to the JFK Medical Pavilion II Loan REMIC
Regular Interest for purposes of this definition as the context requires.

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

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

            "Maturity Date": With respect to any Mortgage 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 Mortgage Loan by reason
of default thereunder, (ii) any grace period permitted by the related Note or
(iii) any modification, waiver or amendment of such Mortgage Loan granted or
agreed to by the Master Servicer or the Special Servicer pursuant to Section
3.20 occurring prior to such date of determination.

            "Mezzanine Loan": Any loan constituting "Mezzanine Debt" or a
"Mezzanine Loan", as identified in Exhibit C-2 attached 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, the Accrued Certificate Interest Amount
for such Class for such Distribution Date.

            "Monthly Payment": With respect to any Mortgage Loan (other than any
REO Mortgage Loan) and any Due Date, the scheduled monthly payment of principal,
if any, and interest at the Mortgage Rate, excluding any Balloon Payment or
Excess Interest, 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 Mortgage Loan granted or agreed to
by the Master Servicer or Special Servicer pursuant to Section 3.20), without
regard to any acceleration of principal of such Mortgage Loan by reason of a
default thereunder. With respect to an REO Mortgage Loan, the monthly payment,
excluding any Balloon Payment or Excess Interest, 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; 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 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 Mortgage 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 Trust Mortgage Loan, the
following documents:

                  (i) the original Note (or a lost note affidavit), bearing, or
            accompanied by, all prior and intervening endorsements or
            assignments showing a complete chain of endorsement, assignment or
            allonge 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, 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 2005-C1, 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 or copies of certified 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 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
            2005-C1";

                  (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 Trust Mortgage 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
            Mortgage Loan Seller (or the 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 2005-C1";

                  (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 of the Trust Mortgage Loan 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 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
            2005-C1", which assignment may be included as part of an omnibus
            assignment covering other documents relating to the Trust Mortgage
            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 Trust
            Mortgage 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 escrow instructions binding on the title
            insurer irrevocably obligating the title insurer to issue such title
            insurance policy) or interim binder, relating to the Trust Mortgage
            Loan;

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

                  (xi) 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 sufficient to perfect (and maintain the perfection of) the
            security interest held by the Mortgage Loan Originator (and each
            assignee of record prior to the Trustee) in and to the personalty of
            the Borrower at the Mortgaged Property that is described in the
            related Mortgage or a separate security agreement, and original UCC
            Financing Statement assignments in a form suitable for filing or
            recording, sufficient to transfer such 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) with respect to any debt of a Borrower permitted under
            the Trust Mortgage Loan, an original or copy of the subordination
            agreement, standstill agreement or other intercreditor, co-lender or
            similar agreement relating to such other debt, if any, including (if
            and as applicable) any Intercreditor Agreement, mezzanine loan
            documents or preferred equity documents, together with, if the Trust
            Mortgage Loan is an A Loan, a copy of the Note for each related B
            Loan;

                  (xiv) with respect to any Cash Collateral Accounts and
            Lock-Box Accounts, an original or copy of any related cash
            collateral control agreement or lock-box control agreement, as
            applicable, and a copy of the UCC Financing Statements, if any,
            submitted for filing with respect to the related Mortgage Loan
            Seller's security interest in the Cash Collateral Accounts and
            Lock-Box Accounts and all funds contained therein (together with UCC
            Financing Statement assignments in a form suitable for filing or
            recording, sufficient to transfer such to the Trustee on behalf of
            the Certificateholders);

                  (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 Agreement (if separate
            from the related Mortgage and Loan Agreement);

                  (xvi) the originals of Letters of Credit, if any, relating to
            the Trust Mortgage Loan, provided that in connection with the
            delivery of the Mortgage File to the Trust, such originals shall be
            delivered to the Master Servicer and copies thereof shall be
            delivered to the Trustee;

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

                  (xviii) the original Ground Lease, Ground Lease estoppels and
            any amendments thereto, if any, or a copy thereof;

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

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

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

                  (xxii) with respect to the JFK Medical Pavilion II Loan, the
            original or a copy of the related REMIC Declaration and copies of
            IRS Form SS4 and Form 8811 filed with the IRS relating to that loan
            REMIC.

            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. If any B Loan is being serviced and administered
hereunder, the Mortgage File for the related Trust Mortgage Loan shall also
constitute the Mortgage File for such B Loan.

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

            "Mortgage Loan": Any Trust Mortgage Loan or, to the extent being
serviced hereunder, any B Loan.

            "Mortgage Loan Combination": Any CBA A/B Mortgage Loan Combination.

            "Mortgage Loan Combination Custodial Account": With respect to any
Mortgage Loan Combination, the segregated account or accounts (or, subject to
Section 3.04(h), the sub-account) created and maintained by the Master Servicer
pursuant to Section 3.04(e) in the name of the Trustee on behalf of the
Certificateholders and the related B Loan Holder, which, subject to Section
3.04(h), shall be entitled substantially as follows: "GMAC Commercial Mortgage
Corporation [or the name of any successor Master Servicer], as Master Servicer,
in trust for Wells Fargo Bank, N.A. [or the name of any successor Trustee], as
Trustee, on behalf of Holders of Credit Suisse First Boston Mortgage Securities
Corp., Commercial Mortgage Pass-Through Certificates, Series 2005-C1 and [name
of the related B Loan Holder], as their interests may appear". Each Mortgage
Loan Combination Custodial Account shall be an Eligible Account (or, subject to
Section 3.04(h), a sub-account of an Eligible Account) and, only to the extent
of amounts therein relating to the subject A Loan, shall be part of REMIC I.

            "Mortgage Loan Documents": With respect to each Mortgage 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 Trust
Mortgage Loans, any UCC Financing Statements, the title insurance policy (or
escrow instructions binding on the title insurer irrevocably obligating the
title insurer to issue such 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 Mortgage Loan, any
prior assignments of Mortgage in the event that the related Mortgage Loan Seller
is not the originator of record, any collateral assignments of property
management agreements and other servicing 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.

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

            "Mortgage Loan Purchase Agreement": Either of the Column Mortgage
Loan Purchase Agreement or the GMACCM Mortgage Loan Purchase Agreement.

            "Mortgage Loan Sellers": Together, Column and GMACCM.

            "Mortgage Pool": All of the Trust Mortgage Loans and any successor
REO Trust Mortgage Loans, collectively, as of any particular date of
determination. The Mortgage Pool shall not include any Junior Loans.

            "Mortgage Rate": With respect to: (i) any Mortgage 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 Mortgage Loan from time to time in accordance with the related Note and
applicable law; provided, however, that the Mortgage Rate for any GMACCM Fixed
Interest Amount Loan during the related GMACCM Fixed Interest Period shall be
the interest rate effective during such GMACCM Fixed Interest Period, calculated
based on (a) 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
Mortgage Loan from time to time in accordance with the related Note and
applicable law, (b) the assumption of a year consisting of twelve 30-day months,
and (c) in the case of the GMACCM Fixed Interest Amount Loans identified on the
Trust Mortgage Loan Schedule as Carole Properties Portfolio, Hanford Town Center
and The Mall at Yuba City, applying an adjustment factor of 1.0138889; (ii) any
Mortgage 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 Mortgage Loan, the annualized rate described in clause (i) or
(ii), as applicable, above, determined as if the predecessor Mortgage Loan had
remained outstanding. In the case of the JFK Medical Pavilion II Loan, "Mortgage
Loan" shall refer to the JFK Medical Pavilion II Loan REMIC Regular Interest for
purposes of this definition and not the underlying Mortgage Loan or REO Mortgage
Loan.

            "Mortgaged Property": The underlying real property (including any
REO Property) that secures a Mortgage Loan, 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.

            "Mortgagee": The holder of legal title to any Mortgage Loan,
together with any third parties through which such holder takes actions with
respect to such Mortgage Loan.

            "Net Investment Earnings": (i) With respect to any of the Collection
Account, any Mortgage Loan Combination Custodial Account, any Lock-Box Account,
any Cash Collateral Account, any Servicing Account or the REO Account, for any
Collection Period, and (ii) with respect to any of the Distribution Account, the
Excess Liquidation Proceeds Account, the Grantor Trust Distribution Account and
the Interest Reserve Account, for any one-month period ending on a Distribution
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 accordance with Section 3.06.

            "Net Investment Loss": (i) With respect to any of the Collection
Account, any Mortgage Loan Combination Custodial Account, any Lock-Box Account,
any Cash Collateral Account, any Servicing Account or the REO Account, for any
Collection Period and (ii) with respect to any of the Distribution Account, the
Excess Liquidation Proceeds Account, the Grantor Trust Distribution Account and
the Interest Reserve Account, for any one-month period ending on a Distribution
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.

            "Net Liquidation Proceeds": The excess, if any, of (a) all
Liquidation Proceeds actually received by the Trust with respect to any
Specially Serviced Trust Mortgage Loan or REO Property, over (b) the amount of
all Liquidation Expenses incurred with respect thereto.

            "Net Mortgage Pass-Through Rate":

            (A) With respect to any Trust Mortgage Loan (or any successor REO
Trust Mortgage Loan with respect thereto) that accrues interest on a 30/360
Basis and any GMACCM Fixed Interest Amount Loan during the related GMACCM Fixed
Interest Period, for any Distribution Date, an annual rate equal to the Original
Net Mortgage Rate for such Trust Mortgage Loan; and

            (B) With respect to any Trust Mortgage Loan (or any successor REO
Trust Mortgage Loan with respect thereto) that accrues interest on an Actual/360
Basis, the JFK Medical Pavilion II Loan REMIC Regular Interest and any GMACCM
Fixed Interest Amount Loan after the expiration of the related GMACCM Fixed
Interest Period, 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 (disregarding the last sentence of the
                  definition of Interest Accrual Period), multiplied by (b) the
                  Stated Principal Balance of such Trust Mortgage Loan (or such
                  REO Trust Mortgage Loan) immediately preceding such
                  Distribution Date, multiplied by (c) 1/360, multiplied by (d)
                  the Original Net Mortgage Rate for such Trust Mortgage Loan;
                  and

            (2)   the denominator of which is the Stated Principal Balance of
                  such Trust Mortgage Loan (or such REO Mortgage 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 2005, 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 Trust Mortgage Loan (or REO Trust
Mortgage 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 2005, 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 Trust
Mortgage Loan (or REO Trust Mortgage Loan) or the JFK Medical Pavilion II 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 Trust Mortgage Loan or REO
Trust Mortgage Loan or the JFK Medical Pavilion II Loan REMIC Regular Interest
as of any date of determination, a per annum rate equal to the related Mortgage
Rate minus the related Administrative Fee Rate.

            "Net Operating Income": With respect to any Mortgaged Property, for
any twelve-month period, 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 Mortgage Loan.

            "New Lease": Any lease of REO Property entered into at the direction
of the 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
previously made or proposed to be made in respect of a Trust Mortgage Loan or an
REO Trust Mortgage Loan (including any P&I Advance that constitutes a
Workout-Delayed Reimbursement Amount) which, in the judgment (in accordance with
the Servicing Standard in the case of judgment by the Master Servicer or the
Special Servicer) of the Master Servicer, the Special Servicer or the Trustee,
as applicable, 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 Trust Mortgage Loan or REO Trust Mortgage Loan. The
determination by the Master Servicer, the Special Servicer or the Trustee, as
applicable, that it has made (or, in the case of a determination made by the
Special Servicer, that the Master Servicer or Trustee 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 and the Special Servicer, in the case of the Master
Servicer, (ii) to the Master Servicer and the Trustee in the case of the Special
Servicer, (iii) to the Depositor, the Master Servicer and the Special Servicer,
in the case of the Trustee, and (iv) in each case, to the Series 2005-C1
Directing Certificateholder, each Junior Loan Holder or its designee (if any CBA
A/B Mortgage Loan Combination or any related REO Trust Mortgage Loan is
involved) and to any Requesting Subordinate Certificateholder (at the expense of
such Requesting Subordinate Certificateholder) setting forth such determination
of nonrecoverability and the considerations of the Master Servicer, the Special
Servicer or the Trustee, as applicable, 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,
subject to Section 3.03(c), be advanced by the Master Servicer as a Servicing
Advance). In addition, in considering whether a P&I Advance is nonrecoverable,
the Master Servicer, the 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 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 Master
Servicer's determination that a P&I Advance is nonrecoverable. The Master
Servicer and the Trustee shall conclusively rely on and be bound by the Special
Servicer's determination that a P&I Advance is nonrecoverable, provided,
however, that in the absence of such determination by the Special Servicer, the
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 Special Servicer that a previously made or proposed P&I Advance would be
recoverable be binding on the Master Servicer or Trustee.

            "Nonrecoverable Servicing Advance": The portion of any
Servicing Advance previously made or proposed to be made in respect of a
Mortgage Loan or REO Property (including any Servicing Advance that constitutes
a Workout-Delayed Reimbursement Amount) which, in the judgment (in accordance
with the Servicing Standard in the case of judgment by the Master Servicer or
the Special Servicer) of the Master Servicer, the Special Servicer or the
Trustee, as the case may be, 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 Mortgage Loan or REO Property. The
determination by the Master Servicer, the Special Servicer or the Trustee, as
the case may be, that it has made (or, in the case of a determination made by
the Special Servicer, that the Master Servicer, the Special Servicer or the
Trustee 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 and
the Special Servicer, in the case of the Master Servicer, (ii) to the Master
Servicer and the Trustee in the case of the Special Servicer, (iii) to the
Depositor, the Special Servicer and the Master Servicer, in the case of the
Trustee, and (iv) and in each case, to the Series 2005-C1 Directing
Certificateholder, to each Junior Loan Holder or its designee (if any CBA A/B
Mortgage Loan Combination or any related REO Property is involved) and to any
Requesting Subordinate Certificateholder (at the expense of such Requesting
Subordinate Certificateholder). The Officer's Certificate shall set forth such
determination of nonrecoverability and the considerations of the Master
Servicer, the Special Servicer or the Trustee, as applicable, 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, subject to Section 3.03(c), be advanced by
the Master Servicer as a Servicing Advance). In addition, in considering whether
a Servicing Advance is nonrecoverable, the Master Servicer, the 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 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 Master Servicer's determination that a Servicing
Advance is nonrecoverable. The Master Servicer and the Trustee shall
conclusively rely on and be bound by the Special Servicer's determination that a
Servicing Advance is a Nonrecoverable Servicing Advance, provided, however, that
in the absence of such determination by the Special Servicer, the 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 Special Servicer that a previously made or proposed
Servicing Advance would be recoverable be binding on the 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-SP, Class A-X, Class E, Class F, Class G, Class H, Class J, Class K,
Class L, Class M, Class N, Class O, Class P, Class R, Class LR 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 Mortgage
Loan, together with any rider, addendum or amendment thereto.

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

            "NRSRO": 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 the Master Servicer or the Special Servicer, or a Responsible Officer of the
Trustee, as the case may be.

            "Opinion of Counsel": A written opinion of counsel, who may be
salaried counsel for the Depositor, the Master Servicer or the Special Servicer,
acceptable in form and delivered to the Trustee, except that any opinion of
counsel relating to (a) the qualification of any REMIC Pool as a REMIC, (b)
compliance with the REMIC Provisions or (c) the resignation of the Depositor,
the Master Servicer or the Special Servicer pursuant to Section 6.04 must be an
opinion of counsel that is 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, the sum of the Monthly Interest
Distribution Amount and the Unpaid Interest Shortfall Amount for such Class for
such Distribution Date.

            "Original Certificate Balance": With respect to any Class of Regular
Certificates (other than the Class A-X and Class A-SP Certificates), the initial
aggregate principal amount thereof as of the Closing Date, in each case as
specified in the Preliminary Statement hereto.

            "Original Column Trust Mortgage Loans": As defined in the
Preliminary Statement hereto.

            "Original GMACCM Trust Mortgage Loans": As defined in the
Preliminary Statement hereto.

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

            "Original REMIC I Principal Amount": With respect to any Class of
Uncertificated REMIC I Interests, the principal amount thereof as of the Closing
Date, in each case as specified in the Preliminary Statement hereto.

            "Original Trust Mortgage Loans": As defined in the Preliminary
Statement to this Agreement.

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

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

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

            "Ownership Interest": In the case of 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 Trust Mortgage Loan or REO Trust Mortgage
Loan, any advance made by the Master Servicer or the Trustee, as applicable,
pursuant to Section 4.03 or Section 7.05.

            "Pass-Through Rate": With respect to each Class of Certificates, the
respective per annum rate listed below:

                    Class A-1:          Class A-1 Pass-Through Rate
                    Class A-2:          Class A-2 Pass-Through Rate
                    Class A-3:          Class A-3 Pass-Through Rate
                    Class A-AB:         Class A-AB Pass-Through Rate
                    Class A-4:          Class A-4 Pass-Through Rate
                    Class A-X:          Class A-X Pass-Through Rate
                    Class A-SP:         Class A-SP 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

            "Penalty Charges": The Default Interest and/or late payment charges
that are paid or payable, as the context may require, in respect of any Mortgage
Loan or REO Mortgage Loan.

            "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 divided by the initial
Certificate Balance (or, in the case of the Class A-X and Class A-SP
Certificates, the Notional Balance) of such Class of Certificates as of the
Closing Date. With respect to a Class V or Residual Certificate, the percentage
interest as set forth on the face thereof.

            "Performing Mortgage Loan": Any Performing Trust Mortgage Loan or
any B Loan as to which the related Trust Mortgage Loan is a Performing Trust
Mortgage Loan.

            "Performing Party": As defined in Section 3.26(b).

            "Performing Trust Mortgage Loan": As of any date of determination,
any Trust Mortgage Loan as to which no Servicing Transfer Event then exists as
described in the definition of "Servicing Transfer Event".

            "Permitted Investments": Any one or more of the following
obligations or securities, regardless whether issued by the Depositor, the
Master Servicer, the Special Servicer, the Trustee 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 that 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, further, 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 the 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 the 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 (A) ratings in
            the highest long-term unsecured debt rating category of each Rating
            Agency or (B) such other ratings (as confirmed by the applicable
            Rating Agency in writing) as will not result in a downgrade,
            qualification or withdrawal of the 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 the
            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.

            "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 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 or Class LR
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
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.

            "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.

            "Phase I Environmental Assessment": A "Phase I assessment" as
described in and meeting the criteria of the American Society for Testing and
Materials, Designation E-1527.

            "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 Title I of ERISA, Section 4975 of the Code or Similar Law.

            "Plurality Residual Certificateholder": As to any taxable year of
(i) REMIC I and the JFK Medical Pavilion II Loan REMIC or (ii) REMIC II, the
Holder of Certificates evidencing the largest Percentage Interest in the (i)
Class LR Certificates or (ii) Class R Certificates, respectively.

            "Prepayment Assumption": With respect to all Trust Mortgage Loans
other than the ARD Trust Mortgage Loans, the assumption that all payments
required to be made on such Trust Mortgage Loans according to their contractual
terms (including repayment in full on their respective maturity dates) are so
made. With respect to all ARD Trust Mortgage Loans, the assumption that the ARD
Trust Mortgage 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 Trust Mortgage Loan that was subject to Principal Prepayment in full or
in part, or as to which Insurance and Condemnation Proceeds were received by the
Master Servicer or Special Servicer for application to such Trust Mortgage 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 accrued at the
related Net Mortgage Rate for such Trust Mortgage Loan, on the amount of such
Principal Prepayment or, insofar as they represent an early collection of
principal, such Insurance and Condemnation Proceeds (net of any portion of such
interest that represents Penalty Charges or Excess Interest) after the end of
the Mortgage Interest Accrual Period relating to such Due Date and accruing in
the manner set forth in the Mortgage Loan Documents relating to such Trust
Mortgage Loan, to the extent such interest is collected by the Master Servicer
or the Special Servicer.

            "Prepayment Interest Shortfall": With respect to any Distribution
Date, for each Trust Mortgage Loan that was subject to a Principal Prepayment in
full or in part, or as to which Insurance and Condemnation Proceeds were
received by the Master Servicer or Special Servicer for application to such
Trust Mortgage 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
Collection Period to the extent not collected from the borrower, the amount of
uncollected interest that would have accrued at the Net Mortgage Rate for such
Trust Mortgage Loan, plus the Trustee Fee Rate, on the amount of such Principal
Prepayment or, insofar as they represent an early collection of principal, such
Insurance and Condemnation Proceeds (net of any portion of such interest that
represents Penalty Charges or Excess Interest) 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 Trust Mortgage Loan
and ending on (and including) the day immediately preceding such Due Date. A
Prepayment Interest Shortfall in respect of the JFK Medical Pavilion II Loan
shall be a Prepayment Interest Shortfall in respect of the JFK Medical Pavilion
II Loan REMIC Regular Interest.

            "Prime Rate": The "prime rate" published in the "Money Rates"
section of The Wall Street Journal, as such "prime rate" may change from time to
time. If The Wall Street Journal ceases to publish the "prime rate", then the
Trustee, in its sole discretion, shall select an equivalent publication that
publishes such "prime rate"; and if such "prime rate" is no longer generally
published or is limited, regulated or administered by a governmental or
quasi-governmental body, then the Trustee shall select a comparable interest
rate index. In either case, such selection shall be made by the Trustee in its
sole discretion and the Trustee shall notify the Master Servicer and the Special
Servicer in writing of its selection.

            "Principal Balance Certificate": Any of the Class A-1, Class A-2,
Class A-3, Class A-AB, Class A-4, 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
and Class P Certificates.

            "Principal Prepayment": Any payment of principal made by the
Borrower on a Mortgage Loan that is received in advance of its scheduled Due
Date and that is not accompanied by an amount of interest (without regard to any
Yield Maintenance Charge and/or Excess Interest that may have been collected)
representing scheduled interest due on any date or dates in any month or months
subsequent to the month of prepayment; provided that "Principal Prepayment"
shall not include any such payment of principal made out of Insurance and
Condemnation Proceeds or Liquidation Proceeds.

            "Privileged Person": Any of the following: a party to this
Agreement, an Underwriter, a Mortgage Loan Seller, the Series 2005-C1 Directing
Certificateholder, each B Loan Holder, a Rating Agency, a designee of the
Depositor, a Certificateholder, a Certificate Owner or, to the extent identified
as such by a Certificateholder or a Certificate Owner, a prospective purchaser
(or licensed or registered investment advisor acting on their behalf) of a
Certificate or any interest therein 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-1 or Exhibit S-2, as
applicable, or any other Person designated by the Depositor.

            "Proposed Plan": As defined in Section 3.17(a).

            "Prospectus": The Base Prospectus and the Prospectus Supplement,
together.

            "Prospectus Supplement": That certain prospectus supplement dated
March 3, 2005, relating to the Registered Certificates, that is a supplement to
the Base Prospectus.

            "PTCE": Prohibited Transaction Class Exemption.

            "PTE": Prohibited Transaction Exemption.

            "Purchase Price": With respect to any Trust Mortgage Loan to be
purchased by (a) a Mortgage Loan Seller pursuant to Section 7 of the related
Mortgage Loan Purchase Agreement or, in the case of a Column Trust Mortgage
Loan, by the Column Performance Guarantor, (b) the Series 2005-C1 Directing
Certificateholder pursuant to Section 3.18(b), the Special Servicer pursuant to
or as contemplated by Section 3.18(c), or an assignee or Affiliate of either
thereof, in any case, pending determination of Fair Value, (c) the related B
Loan Holder with respect to any CBA A/B Mortgage Loan Combination pursuant to
the related CBA A/B Intercreditor Agreement, or (d) by the holders of more than
50% of the Percentage Interests in the Controlling Class, the Special Servicer
or the Master Servicer pursuant to Section 9.01, a price equal to the sum of the
following:

                  (i) the outstanding principal balance of such Trust Mortgage
            Loan as of the date of purchase;

                  (ii) all accrued and unpaid interest on such Trust Mortgage
            Loan (exclusive of Default Interest and Excess Interest, if any) to
            but not including the Due Date in the Collection Period of purchase
            (which includes unpaid Master Servicing Fees) and all related
            Special Servicing Fees accrued with respect to such Trust Mortgage
            Loan;

                  (iii) all related unreimbursed Servicing Advances (or such
            Advances reimbursed by the Trust Fund) plus accrued and unpaid
            interest on related Advances at the Reimbursement Rate;

                  (iv) if such Trust Mortgage Loan is being repurchased by a
            Mortgage Loan Seller pursuant to Section 7 of the related Mortgage
            Loan Purchase Agreement or, in the case of a Column Trust Mortgage
            Loan, by the Column Performance Guarantor, in either case, 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 Trust Mortgage Loan is being repurchased by the
            related B Loan Holder pursuant to the related CBA A/B Intercreditor
            Agreement, the amount of the Liquidation Fee payable to the Special
            Servicer, if such purchase occurs after 90 days of the related Trust
            Mortgage Loan becoming a Specially Serviced Trust Mortgage Loan; and

                  (vi) if such Trust Mortgage Loan is being purchased by a
            Mortgage Loan Seller pursuant to Section 7 of the related Mortgage
            Loan Purchase Agreement or, in the case of a Column Trust Mortgage
            Loan, by the Column Performance Guarantor, all reasonable
            out-of-pocket expenses reasonably incurred or to be incurred by the
            Master Servicer, the Special Servicer, the Depositor and the Trustee
            in respect of the Breach or Defect giving rise to the repurchase
            obligation, including any expenses arising out of the enforcement of
            the repurchase obligation and any realized losses and Trust Fund
            expenses incurred prior to such purchase date with respect to such
            Trust Mortgage Loan.

With respect to any Defaulted Trust Mortgage Loan to be purchased by the Series
2005-C1 Directing Certificateholder (or any assignee thereof) or the Special
Servicer (or any Affiliate thereof) 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 Trust Mortgage Loan. With respect to any REO Property to
be sold pursuant to Section 3.18(e), the Purchase Price will equal the amount
calculated in accordance with the second preceding sentence in respect of the
related REO Trust Mortgage Loan (or, if such REO Property relates to any
Mortgage Loan Combination, in respect of all of the related REO Mortgage Loans
and treating the B Loans as if they were Trust Mortgage Loans).

            "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 Mortgage Loan,
Mortgaged Property or REO Property, an insurance company or security or bonding
company qualified to write the related Insurance Policy in the relevant
jurisdiction and that (X) has a claims paying ability that is rated (or is
guaranteed or backed in writing by an entity with long-term unsecured debt that
is rated) at least "A" by Fitch (if then rated by Fitch) and "A2" by Moody's (if
then rated by Moody's) or (Y) for any Insurance Policy being maintained by the
related Borrower, an insurance carrier meeting the requirements of the related
Mortgage Loan Documents, (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 that is rated (or
is guaranteed or backed by an entity with long-term unsecured debt that is
rated) no lower than two ratings below the rating assigned to the then highest
rated outstanding Certificate, but in no event lower than "A3" by Moody's (if
then rated by Moody's) and "A-" by Fitch (if then rated by Fitch) or, in the
case of clauses (i) and (ii), such other rating as each Rating Agency shall have
confirmed in writing will not cause such Rating Agency to downgrade, qualify or
withdraw the then-current rating assigned to any of the Certificates that are
then currently being rated by such Rating Agency.

            "Qualified Mortgage": A qualified mortgage within the meaning of
Section 860G(a)(3) of the Code.

            "Qualified Substitute Trust 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 Trust Mortgage 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 Trust Mortgage Loan; (iii) have the same
Due Date as the Deleted Trust Mortgage Loan; (iv) accrue interest on the same
Interest Accrual Period as the Deleted Trust Mortgage Loan; (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 Trust Mortgage Loan; (vi)
have an original Loan-to-Value Ratio not higher than that of the Deleted Trust
Mortgage Loan and a current Loan-to-Value Ratio not higher than the then current
Loan-to-Value Ratio of the Deleted Trust Mortgage 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 Trust Mortgage Loan and a current Debt Service Coverage Ratio of
not less than the then-current Debt Service Coverage Ratio of the Deleted Trust
Mortgage Loan; (x) be determined by an Opinion of Counsel (at the applicable
Mortgage Loan Seller'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 Trust Mortgage 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 such Rating Agency to any Class of Certificates then rated by such Rating
Agency (the cost, if any, of obtaining such confirmation to be paid by the
applicable Mortgage Loan Seller); (xiii) have been approved by the Series
2005-C1 Directing Certificateholder in its sole discretion; (xiv) prohibit
defeasance within two years of the Closing Date and (xv) not be substituted for
a Deleted Trust Mortgage Loan if it would result in the termination of the REMIC
status of any REMIC Pool or the imposition of tax on any of such REMIC Pool
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. In the
event that one or more mortgage loans are substituted for one or more Deleted
Trust Mortgage 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 and the remaining term to stated maturity referred to in
clause (v) above shall be determined on a weighted average basis; provided that
no interest rate on any individual Qualified Substitute Trust Mortgage Loan,
less the related Master Servicing Fee Rate and the Trustee Fee Rate may be less
than the lowest fixed Pass-Through Rate on any Class of Principal Balance
Certificates. When a Qualified Substitute Trust Mortgage Loan is substituted for
a Deleted Trust Mortgage Loan, the applicable Mortgage Loan Seller shall certify
that the Trust 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 JFK Medical Pavilion II Loan shall
be an asset solely of the JFK Medical Pavilion II Loan REMIC.

            "Rated Certificate": Any of the Certificates to which a rating has
been assigned by either Rating Agency at the request of the Depositor.

            "Rated Final Distribution Date": The Distribution Date in February
2038.

            "Rating Agency": Each of Fitch and Moody's.

            "Realized Loss": With respect to:

            (1) each defaulted Trust Mortgage Loan as to which a Final Recovery
      Determination has been made, or with respect to any successor REO Trust
      Mortgage Loan as to which a Final Recovery Determination has been made as
      to the related REO Property, an amount (not less than zero) equal to (a)
      the unpaid principal balance of such Trust Mortgage Loan or REO Trust
      Mortgage Loan, as the case may be, as of the commencement of the
      Collection Period in which the Final Recovery Determination was made, plus
      (b) without taking into account the amount described in subclause (1)(c)
      of this definition, all unpaid interest accrued in respect of such Trust
      Mortgage Loan or REO Trust Mortgage Loan, as the case may be, to but not
      including the related Due Date in the Collection Period in which the Final
      Recovery Determination was made, exclusive, however, of any portion of
      such unpaid interest that constitutes Default Interest or, in the case of
      an ARD Trust Mortgage Loan after its Anticipated Repayment Date, Excess
      Interest, minus (c) all payments and proceeds, if any, received in respect
      of such Trust Mortgage Loan or REO Trust Mortgage Loan, as the case may
      be, during the Collection Period in which such Final Recovery
      Determination was made that are applied as a recovery of principal of, or
      interest on, such Trust Mortgage Loan or REO Trust Mortgage Loan, as the
      case may be;

            (2) each defaulted Trust Mortgage Loan as to which any portion of
      the principal or past due interest payable thereunder was canceled in
      connection with a bankruptcy, insolvency or similar proceeding involving
      the related Borrower or a modification, waiver or amendment of such Trust
      Mortgage Loan granted or agreed to by the Master Servicer or the Special
      Servicer pursuant to Section 3.20, the amount of such principal or past
      due interest (other than any Default Interest and, in the case of an ARD
      Trust Mortgage Loan after its Anticipated Repayment Date, Excess Interest)
      so canceled; and

            (3) each defaulted Trust Mortgage Loan as to which the Mortgage Rate
      thereon has been permanently reduced and not recaptured for any period in
      connection with a bankruptcy, insolvency or similar proceeding involving
      the related Borrower or a modification, waiver or amendment of such Trust
      Mortgage Loan granted or agreed to by the Master Servicer or the Special
      Servicer pursuant to Section 3.20, the amount of any consequent reduction
      in the interest portion of each successive Monthly Payment due thereon
      (each such Realized Loss to be deemed to have been incurred on the Due
      Date for each affected Monthly Payment).

            "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 April 2005 Distribution Date to and including the March 2012
Distribution Date, the corresponding rate per annum set forth on Exhibit L
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-2, Class A-3, Class A-AB, Class A-4, Class A-J, Class B, Class C and
Class D Certificates constitute Registered Certificates.

            "Regular Certificate": Any Class of Certificates other than the
Residual Certificates and Class V Certificates.

            "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.

            "Release Date": With respect to any Class of Non-Registered
Certificates (other than the Class R, Class LR 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.

            "Remaining Principal Distribution Amount": As to any Distribution
Date and any Class of Subordinate Certificates, the amount, if any, by which the
Total Principal Distribution Amount for such Distribution Date exceeds the
aggregate amount distributed in respect of Total Principal Distribution Amounts
on such Distribution Date to all Classes senior to such Class.

            "REMIC": A "real estate mortgage investment conduit" as defined in
Section 860D of the Code.

            "REMIC I": One of three separate REMICs comprising the Trust Fund,
the assets of which consist of the Trust Mortgage Loans (exclusive of any Excess
Interest and the JFK Medical Pavilion II Loan) or any REO Property with respect
thereto (exclusive of any interest therein that a B Loan Holder may have), such
amounts related thereto as shall from time to time be held in the Collection
Account, the Interest Reserve Account, the REO Account (exclusive of any such
amounts that are allocable to a B Loan), if any, and the REMIC I Distribution
Account, the JFK Medical Pavilion II Loan REMIC Regular Interest and, except as
otherwise provided in this Agreement, all other property included in the Trust
Fund that is not in REMIC II or in the JFK Medical Pavilion II Loan REMIC or
designated as a grantor trust asset in the Preliminary Statement hereto. The JFK
Medical Pavilion II Loan, collections thereon, and any beneficial interest in
the related REO Property acquired under this Agreement shall be held as assets
of the JFK Medical Pavilion II Loan REMIC.

            "REMIC Declaration": The declaration establishing the JFK Medical
Pavilion II Loan REMIC described in the Preliminary Statement.

            "REMIC I Distribution Account": The account, accounts or, subject to
Section 3.04(h), subaccount created and maintained by the Trustee, which,
subject to Section 3.04(h), shall be entitled "Wells Fargo Bank, N.A. [or the
name of any successor Trustee], as Trustee, in trust for Holders of Credit
Suisse First Boston Mortgage Securities Corp., Commercial Mortgage Pass-Through
Certificates, Series 2005-C1, REMIC I Distribution Account", and which shall be
an Eligible Account or, subject to Section 3.04(h), a subaccount of an Eligible
Account.

            "REMIC I Distribution Amount": As defined in Section 4.01(b).

            "REMIC I Principal Amount": With respect to any Class of
Uncertificated REMIC I Interests, (i) on or prior to the first Distribution
Date, an amount equal to the Original REMIC I Principal Amount of such Class as
specified in the Preliminary Statement hereto, and (ii) as of any date of
determination after the first Distribution Date, an amount equal to the
Certificate Balance of the Class of Related Certificates on the Distribution
Date immediately prior to such date of determination (determined as adjusted
pursuant to Section 1.03(h)); provided that (i) with respect to the Class A-1
Certificates, (A) the REMIC I Principal Amount of the Class LA-1-1
Uncertificated Interest shall be the lesser of $10,733,000 and the Class
Principal Balance of the Class A-1 Certificates minus $103,008,000 but not less
than zero, (B) the REMIC I Principal Amount of the Class LA-1-2 Uncertificated
Interest shall be the lesser of $66,542,000 and the Class Principal Balance of
the Class A-1 Certificates minus $36,466,000 but not less than zero, and (C) the
REMIC I Principal Amount of the Class LA-1-3 Uncertificated Interest shall be
the lesser of $36,466,000 and the Class Principal Balance of the Class A-1
Certificates; (ii) with respect to the Class A-2 Certificates, (A) the REMIC I
Principal Amount for the Class LA-2-1 Uncertificated Interest shall be the
lesser of $35,088,000 and the Class Principal Balance of the Class A-2
Certificates minus $90,412,000 but not less than zero, (B) the REMIC I Principal
Amount for the Class LA-2-2 Uncertificated Interest shall be the lesser of
$68,129,000 and the Class Principal Balance of the Class A-2 Certificates minus
$22,283,000 but not less than zero, and (C) the REMIC I Principal Amount for the
Class LA-2-3 Uncertificated Interest shall be the lesser of $22,283,000 and the
Class Principal Balance of the Class A-2 Certificates; (iii) with respect to the
Class A-3 Certificates, (A) the REMIC I Principal Amount for the Class LA-3-1
Uncertificated Interest shall be the lesser of $162,864,000 and the Class
Principal Balance of the Class A-3 Certificates minus $18,742,000 but not less
than zero, and (B) the REMIC I Principal Amount for the Class LA-3-2
Uncertificated Interest shall be the lesser of $18,742,000 and the Class
Principal Balance of the Class A-3 Certificates; (iv) with respect to the Class
A-AB Certificates, (A) the REMIC I Principal Amount of the Class LA-AB-1
Uncertificated Interest shall be the lesser of $51,625,000 and the Class
Principal Balance of the Class A-AB Certificates minus $61,475,000 but not less
than zero, and (B) the REMIC I Principal Amount of the Class LA-AB-2
Uncertificated Interest shall be the lesser of $61,475,000 and the Class
Principal Balance of the Class A-AB Certificates; (v) with respect to the Class
A-4 Certificates, (A) the REMIC I Principal Amount for the Class LA-4-1
Uncertificated Interest shall be the lesser of $110,460,000 and the Class
Principal Balance of the Class A-4 Certificates minus $563,887,000 but not less
than zero, and (B) the REMIC I Principal Amount for the Class LA-4-2
Uncertificated Interest shall be the lesser of $563,887,000 and the Class
Principal Balance of the Class A-4 Certificates; (vi) with respect to the Class
C Certificates, (A) the REMIC I Principal Amount for the Class LC-1
Uncertificated Interest shall be the lesser of $871,000 and the Class Principal
Balance of the Class C Certificates minus $12,345,000 but not less than zero,
and (B) the REMIC I Principal Amount for the Class LC-2 Uncertificated Interest
shall be the lesser of $12,345,000 and the Class Principal Balance of the Class
C Certificates, (vii) with respect to the Class D Certificates, (A) the REMIC I
Principal Amount for the Class LD-1 Uncertificated Interest shall be the lesser
of $6,014,000 and the Class Principal Balance of the Class D Certificates minus
$18,529,000 but not less than zero, and (B) the REMIC I Principal Amount for the
Class LD-2 Uncertificated Interest shall be the lesser of $18,529,000 and the
Class Principal Balance of the Class D Certificates; (viii) with respect to the
Class E Certificates, (A) the REMIC I Principal Amount for the Class LE-1
Uncertificated Interest shall be the lesser of $2,308,000 and the Class
Principal Balance of the Class E Certificates minus $16,572,000 but not less
than zero, and (B) the REMIC I Principal Amount for the Class LE-2
Uncertificated Interest shall be the lesser of $16,572,000 and the Class
Principal Balance of the Class E Certificates and (ix) with respect to the Class
G Certificates, (A) the REMIC I Principal Amount for the Class LG-1
Uncertificated Interest shall be the lesser of $12,629,000 and the Class
Principal Balance of the Class G Certificates minus $2,475,000 but not less than
zero, and (B) the REMIC I Principal Amount for the Class LG-2 Uncertificated
Interest shall be the lesser of $2,475,000 and the Class Principal Balance of
the Class G Certificates.

            "REMIC II": One of the three separate REMICs comprising the Trust
Fund, the assets of which consist of the Uncertificated REMIC I Interests and
such amounts as shall from time to time be held in the REMIC II Distribution
Account.

            "REMIC II Distribution Account": The account, accounts or, subject
to Section 3.04(h), subaccount created and maintained by the Trustee, which,
subject to Section 3.04(h), shall be entitled "Wells Fargo Bank, N.A. [or the
name of any successor Trustee], as Trustee, in trust for Holders of Credit
Suisse First Boston Mortgage Securities Corp., Commercial Mortgage Pass-Through
Certificates, Series 2005-C1, REMIC II Distribution Account", and which shall be
an Eligible Account or, subject to Section 3.04(h), a subaccount of an Eligible
Account.

            "REMIC Pool": Any of REMIC I, REMIC II or the JFK Medical Pavilion
II Loan REMIC.

            "REMIC Provisions": The 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 proposed, temporary and final Treasury regulations and
any 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 the Special Servicer pursuant to Section 3.16 on behalf of the
Trustee in trust for the Certificateholders and any related Junior Loan
Holder(s), which shall be entitled "Lennar Partners, Inc. [or the name of any
successor Special Servicer], as Special Servicer, in trust for Wells Fargo Bank,
N.A. [or the name of any successor 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), as their interests may
appear, Series 2005-C1 REO Account". Any such account or accounts shall be an
Eligible Account.

            "REO Acquisition": With respect to any Mortgage Loan, the
acquisition of the related Mortgaged Property as REO Property by the Special
Servicer on behalf of the Trust Fund and/or any affected B Loan Holder.

            "REO Acquisition Date": The date of the Trust Fund's acquisition for
federal income tax purposes of any REO Property pursuant to Section 3.09.

            "REO B Loan": Any B note component of a Trust Mortgage Loan deemed
for purposes hereof to be outstanding (but outside the Mortgage Pool) with
respect to any REO Property in respect of a Mortgage Loan Combination. Any REO B
Loan shall be deemed to provide for monthly payments of principal and/or
interest equal to its Assumed Scheduled Payments and otherwise to have the same
terms and conditions as its predecessor B Loan (such terms and conditions to be
applied without regard to the default on such predecessor B Loan or the subject
REO Acquisition), as the case may be. Any REO B Loan shall be deemed to have an
initial unpaid principal balance equal to the unpaid principal balance of its
predecessor B Loan as of the related REO Acquisition Date. All Monthly Payments
and other amounts due and owing, or deemed to be due and owing, in respect of
any B Loan (including Nonrecoverable Advances and Workout-Delayed Reimbursement
Amounts) as of the related REO Acquisition Date, shall be deemed to continue to
be due and owing in respect of the related REO B Loan. In addition, all amounts
payable or reimbursable to the Master Servicer, the Special Servicer or the
Trustee, as applicable, in respect of any B Loan as of the related REO
Acquisition Date, including any unpaid or unreimbursed servicing compensation
and Servicing Advances (together with any related unpaid Advance Interest),
shall continue to be payable or reimbursable in the same priority and manner
pursuant to Section 3.04 and 3.11 and the related intercreditor, co-lender or
similar agreement to the Master Servicer, the Special Servicer or the Trustee,
as the case may be, in respect of the related REO B Loan.

            "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 Mortgage Loan": Any REO Trust Mortgage Loan or REO B Loan.

            "REO Property": A Mortgaged Property acquired by the Special
Servicer on behalf of and in the name of the Trustee (or its nominee) for the
benefit of the Certificateholders and, if such property relates to a Mortgage
Loan Combination, each related B Loan Holder (as a collective whole), 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 Trust Mortgage Loan.

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

            "REO Tax": As defined in Section 3.17(a).

            "REO Trust Mortgage Loan": The mortgage loan deemed to be
outstanding and part of the Mortgage Pool with respect to each REO Property.
Each REO Trust Mortgage 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 Trust Mortgage Loan,
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 Trust Mortgage Loan). Each REO
Trust Mortgage Loan shall be deemed to have an initial outstanding principal
balance and Stated Principal Balance equal to the outstanding principal balance
and Stated Principal Balance, respectively, of its predecessor Trust Mortgage
Loan as of the related REO Acquisition Date. All amounts due and owing in
respect of the predecessor Trust Mortgage Loan (including Nonrecoverable
Advances and Workout-Delayed Reimbursement Amounts) as of the related REO
Acquisition Date, including accrued and unpaid interest, shall continue to be
due and owing in respect of an REO Trust Mortgage Loan. All amounts payable or
reimbursable to the Master Servicer, the Special Servicer or the Trustee, as
applicable, in respect of the predecessor Trust Mortgage Loan as of the related
REO Acquisition Date, including any unpaid Special Servicing Fees and Master
Servicing Fees and any unreimbursed Advances, together with any interest accrued
and payable to the 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 Master Servicer, the Special Servicer or the Trustee in
respect of an REO Trust Mortgage Loan.

            "Replacement Trust Mortgage Loan": Any Qualified Substitute Trust
Mortgage Loan that is substituted by a Mortgage Loan Seller or, in the case of a
Column Trust Mortgage Loan, the Column Performance Guarantor for a Defective
Trust Mortgage Loan as contemplated by Section 2.03.

            "Request for Release": A request signed by a Servicing Officer of,
as applicable, the Master Servicer in the form of Exhibit D-1 attached hereto or
the Special Servicer in the form of Exhibit D-2 attached hereto.

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

            "Residual Certificate": Any Class R Certificate or Class LR
Certificate issued, authenticated and delivered hereunder.

            "Responsible Officer": When used with respect to the initial
Trustee, any Vice President, Assistant Vice President, corporate trust officer
or assistant corporate 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.

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

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

            "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.

            "Sarbanes-Oxley Certification": As defined in Section 3.26(a).

            "Securities Act": The Securities Act of 1933, as amended.

            "Security Agreement": With respect to any Mortgage 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 Mortgage Loan.

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

            "Senior Certificates": Collectively, the Class A-P&I Certificates
and the Interest Only Certificates.

            "Senior Principal Distribution Cross-Over Date": The first
Distribution Date as of which the aggregate Certificate Balance of the Class
A-P&I Certificates 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 Total 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 Senior
Certificates 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-2,
Class A-3, Class A-AB, Class A-4, 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
or Class P Certificates.

            "Series 2005-C1 Directing Certificateholder": The particular Holder
(or, in the case of a Class of Book-Entry Certificates, the particular
Certificate Owner) of Certificates of the Controlling Class selected by the
Holders (or, in the case of a Class of Book-Entry Certificates, the Certificate
Owners) of Certificates representing more than 50% of the Percentage Interests
in the Controlling Class (which selection shall be evidenced by notice delivered
by the Series 2005-C1 Directing Certificateholder to the parties hereto and the
prior Series 2005-C1 Directing Certificateholder, if any); provided, however,
that until a Series 2005-C1 Directing Certificateholder is so selected or after
receipt of a notice from the Holders (or, in the case of a Class of Book-Entry
Certificates, the Certificate Owners) of Certificates representing more than 50%
of the Percentage Interests in the Controlling Class that a Series 2005-C1
Directing Certificateholder is no longer designated, the particular
Certificateholder (or, in the case of a Class of Book-Entry Certificates, the
particular Certificate Owner) that beneficially owns Certificates of the
Controlling Class that represents the largest aggregate Percentage Interest in
the Controlling Class shall be the Series 2005-C1 Directing Certificateholder.
The initial Series 2005-C1 Directing Certificateholder will be DSHI Opco LLC. No
appointment of any Person as a Series 2005-C1 Directing Certificateholder shall
be effective until such Person provides the Trustee, the Master Servicer and the
Special Servicer 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 as Series 2005-C1
Directing Certificateholder, the Master Servicer, the Special Servicer and the
Trustee shall not be required to recognize the particular Certificateholder (or,
in the case of a Class of Book-Entry Certificates, the particular Certificate
Owner) that beneficially owns Certificates of the Controlling Class that
represent the largest aggregate Percentage Interest in the Controlling Class as
the Series 2005-C1 Directing Certificateholder until such Certificateholder or
Certificate Owner, as the case may be, 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).

            "Serviced Loan": Any Trust Mortgage Loan.

            "Serviced Loan Combinations": With respect to each CBA A/B Mortgage
Loan Combination, upon a "Material Default" under the related CBA A/B
Intercreditor Agreement, such CBA A/B Mortgage Loan Combination.

            "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 the Master Servicer or the Special Servicer (or, if
applicable, the Trustee) in connection with the servicing of a Mortgage Loan as
to which 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 the Master Servicer and/or the 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 the
Master Servicer or the Special Servicer to the extent such cost is allocable to
a particular Mortgaged Property that the Master Servicer or the 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 Mortgage Loan or any REO Property, (d) any enforcement or judicial
proceedings with respect to any such Mortgage Loan, including foreclosures and
similar proceedings, (e) the operation, leasing, management, maintenance and
liquidation of any REO Property, (f) obtaining any Appraisal 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 the 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;
provided that, notwithstanding anything to the contrary, "Servicing Advances"
shall not include (A) allocable overhead of the Master Servicer or Special
Servicer, such as costs for office space, office equipment, supplies and related
expenses, employee salaries and related expenses and similar internal costs and
expenses, (B) costs incurred by either such party or any Affiliate thereof in
connection with its purchase of any Mortgage Loan or REO Property pursuant to or
as contemplated by any provision of this Agreement or (C) costs or expenses
expressly required under this Agreement to be borne by the Master Servicer or
Special Servicer.

            "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, or otherwise in the possession of the Master
Servicer in connection with, or relating to the origination and servicing of any
Mortgage Loan or which are reasonably required for the ongoing administration of
the Mortgage Loan, including appraisals, surveys, engineering reports,
environmental reports, financial statements, leases, rent rolls and tenant
estoppels, together with copies of documents required to be part of the related
Mortgage File.

            "Servicing Officer": Any officer and/or employee of the Master
Servicer or the Special Servicer involved in, or responsible for, the
administration and servicing of the Mortgage Loans, whose name and specimen
signature appear on a list of servicing officers furnished by the Master
Servicer to the Trustee 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 Mortgage Loan, the
occurrence of any of the following events:

                  (i) in the case of a Balloon Mortgage Loan, a payment default
            shall have occurred on such Mortgage Loan at its Maturity Date, or
            if the Master Servicer has received evidence (which the Master
            Servicer shall promptly forward to the Special Servicer) prior to
            its Maturity Date that the related Borrower has obtained a firm
            commitment to refinance such Mortgage Loan, such default continues
            unremedied beyond the earlier of (A) 60 days after its Maturity Date
            or (B) the expiration of such commitment; or

                  (ii) any Monthly Payment (other than a Balloon Payment) on
            such Mortgage Loan is 60 days or more delinquent; or

                  (iii) the Master Servicer or the Special Servicer reasonably
            determines that a payment default or material non-monetary default
            with respect to such Mortgage Loan has occurred or, in each case, is
            imminent and is not likely to be cured by the related Borrower
            within 60 days (or in the case of a payment default or imminent
            payment default described in (i) or (ii) above, for the time period
            described therein) (provided that any such determination by the
            Special Servicer that a payment default or other non-monetary
            default is imminent shall not be the basis for a Servicing Transfer
            Event unless the Series 2005-C1 Directing Certificateholder
            concurs); 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 Mortgage Loan shall not
            be a Specially Serviced Mortgage 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 Master Servicer has received notice of the
            foreclosure or proposed foreclosure of any lien on the related
            Mortgaged Property; or

                  (viii) any other default (exclusive of an Acceptable Insurance
            Default) that, in the reasonable judgment of the Master Servicer or
            the Special Servicer, has materially and adversely affected the
            value of such Mortgage Loan has occurred and has continued
            unremedied for 60 days (irrespective of any applicable grace period
            specified in the related Mortgage Loan Documents).

A Servicing Transfer Event for any Mortgage Loan in a Mortgage Loan Combination
shall constitute a Servicing Transfer Event for all Mortgage Loans in such
Mortgage Loan Combination until all such Mortgage Loans become Corrected
Mortgage Loans.

A Servicing Transfer Event with respect to any Mortgage Loan shall cease to
exist:

            (w) in the case of the circumstances described in clauses (i) and
(ii) above, if and when the related Borrower has made three consecutive full and
timely Monthly Payments under the terms of such Mortgage Loan (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 granted or agreed to by the Master Servicer or the Special Servicer
pursuant to Section 3.20);

            (x) in the case of the circumstances described in clauses (iii),
(iv), (v) and (vi) above, if and when such circumstances cease to exist in the
reasonable judgment of the applicable Special Servicer;

            (y) in the case of the circumstances described in clause (vii)
above, if any, when the proceedings are terminated; and

            (z) in the case of the circumstances described in clause (viii)
above, if and when such default is cured in the reasonable judgment of the
applicable Special Servicer.

            "Significant Trust Mortgage Loan": At any time, (a) any Trust
Mortgage Loan (i) whose principal balance is $20,000,000 or more at such time or
(ii) that is (x) a Trust Mortgage Loan, (y) part of a group of Crossed Trust
Mortgage Loans or (z) part of a group of Trust Mortgage 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 Trust Mortgage Loans (which for the purposes of this
definition shall include groups of Crossed Trust Mortgage Loans and groups of
Trust Mortgage Loans made to affiliated Borrowers) by outstanding principal
balance at such time.

            "Similar Law": Any federal, state or local law materially similar to
the provisions of Title I 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 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 Mortgage 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 record-keeping; 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 be amended
with respect to the Single-Purpose Entity requirements so long as any
Certificates are outstanding.

            "Special Servicer": Lennar, in its capacity as special servicer
hereunder, or any successor special servicer appointed as herein provided.

            "Special Servicer Employees": As defined in Section 3.07(c).

            "Special Servicing Fee": With respect to each Specially Serviced
Mortgage Loan and REO Mortgage Loan, the fee payable to the Special Servicer
pursuant to the first paragraph of Section 3.11(b).

            "Special Servicing Fee Rate": With respect to each Specially
Serviced Mortgage Loan and each REO Mortgage Loan, 0.35% per annum (provided,
however, that, such fee shall at least equal $4,000 per month with respect to
each Specially Serviced Mortgage Loan, which minimum amount may be reduced by
the Series 2005-C1 Directing Certificateholder).

            "Specially Designated Servicing Action": Any of the following
actions:

                  (i) any modification, waiver or amendment of a monetary term
            of a Mortgage Loan (other than a waiver of Penalty Charges) or a
            material non-monetary term (excluding any waiver of a "due-on-sale"
            or "due-on-encumbrance" clause, which is addressed in clause (viii)
            below);

                  (ii) any proposed or actual foreclosure upon or comparable
            conversion (which may include acquisition of an REO Property) of the
            ownership of properties securing such of the Specially Serviced
            Mortgage Loans as come into and continue in default;

                  (iii) any proposed or actual sale of an REO Property (other
            than in connection with the termination of the Trust Fund);

                  (iv) any determination to bring a Mortgaged Property securing
            a Specially Serviced Mortgaged Loan or an REO Property into
            compliance with applicable environmental laws or to otherwise
            address Hazardous Materials located at such Mortgaged Property or
            REO Property;

                  (v) any release of collateral for a Specially Serviced
            Mortgage Loan or releases of earn-out reserves or related letters of
            credit with respect to a Trust Mortgage Loan (other than in
            accordance with the terms of, or upon satisfaction of, such Mortgage
            Loan);

                  (vi) any acceptance of substitute or additional collateral for
            a Specially Serviced Mortgage Loan (other than in accordance with
            the terms of such Mortgage Loan);

                  (vii) any acceptance of a discounted payoff with respect to a
            Specially Serviced Mortgage Loan;

                  (viii) any waiver of a "due-on-sale" or "due-on-encumbrance"
            clause with respect to any Mortgage Loan; and/or

                  (ix) any acceptance of an assumption agreement releasing a
            borrower from liability under a Mortgage Loan.

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

            "Specially Serviced Trust Mortgage Loan": As defined in Section
3.01(a).

            "Startup Day": With respect to REMIC I and REMIC II, the Closing
Date; and with respect to the JFK Medical Pavilion II Loan REMIC, the "startup
day" set forth in the REMIC Declaration.

            "State Tax Laws": The state and local tax laws of the state in which
the office of the Trustee from which the Trust is administered or located, and
any other state, the applicability of which to the Trust Fund or either REMIC
Pool shall have been confirmed to the Trustee in writing either by the delivery
to the Trustee of an Opinion of Counsel to such effect (which Opinion of Counsel
shall not be at the expense of the Trustee), or by the delivery to the Trustee
of a written notification to such effect by the taxing authority of such state.

            "Stated Principal Balance": With respect to any Mortgage Loan (and
any successor REO Mortgage Loan), a principal balance which (a) initially shall
equal the unpaid principal balance thereof as of the related Due Date in March
2005 or, in the case of any Replacement Trust Mortgage Loan, as of the related
date of substitution, in any event after application of all payments of
principal due thereon on or before such date, whether or not received, and (b)
shall be permanently reduced on each subsequent Distribution Date (to not less
than zero) by (i) that portion, if any, of the Total Principal Distribution
Amount for such Distribution Date attributable to such Mortgage Loan (or
successor REO Mortgage Loan), and (ii) the principal portion of any Realized
Loss incurred in respect of such Mortgage Loan (or successor REO Mortgage Loan)
during the related Collection Period; provided that, if a Liquidation Event
occurs in respect of any Mortgage Loan or REO Property, then the "Stated
Principal Balance" of such Mortgage Loan or of the related REO Mortgage Loan, as
the case may be, shall be zero commencing as of the Distribution Date in the
Collection Period next following the Collection Period in which such Liquidation
Event occurred. In the case of the JFK Medical Pavilion II Loan, "Mortgage Loan"
shall refer to the JFK Medical Pavilion II Loan REMIC Regular Interest for
purposes of this definition as the context requires.

            "Subordinate Certificate": Any of the 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 R, Class LR and Class V Certificates.

            "Subordinate Principal Balance Certificate": Any of the Subordinate
Certificates that is also a Principal Balance Certificate.

            "Sub-Servicer": Any Person with which the Master Servicer or the
Special Servicer has entered into a Sub-Servicing Agreement.

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

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

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

            "Tax Matters Person": With respect to any REMIC Pool, the Person
designated as the "tax matters person" of such REMIC Pool in the manner provided
under Treasury Regulations Section 1.860F-4(d) and temporary Treasury
Regulations Section 301.6231(a)(7)-1T, which Person shall, pursuant to Section
10.01(c), be the Plurality Residual Certificateholder.

            "Tax Returns": The federal income tax return on IRS Form 1066, U.S.
Real Estate Mortgage Investment Conduit Income (REMIC) Tax Return, including
Schedule Q thereto, Quarterly Notice to Residual Interest Holder of REMIC
Taxable Income or Net Loss Allocation, or any successor forms, to be filed on
behalf of each REMIC Pool due to its classification as a REMIC under the REMIC
Provisions, and the federal income tax return on IRS form 1041 or any successor
form, to be filed on behalf of the Grantor Trust Pool, together with any and all
other information, reports or returns that may be required to be furnished to
the Certificateholders or filed with the IRS under any applicable provisions of
federal tax law or any other governmental taxing authority under applicable
state or local tax laws.

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

            "Termination Price": As defined in Section 9.01.

            "Total Principal Distribution Adjustment Amount": As to any
Distribution Date, the sum of (i) the amount of any Nonrecoverable Advance that
was reimbursed to the Master Servicer, Special Servicer or Trustee and that was
deemed to have been reimbursed out of the Total Principal Distribution Amount
and (ii) any Workout-Delayed Reimbursement Amount that was reimbursed to the
Master Servicer, Special Servicer or Trustee and that was deemed to have been
reimbursed out of the Total Principal Distribution Amount, in each case, with
interest on such Advance, during the period since the preceding Distribution
Date.

            "Total Principal Distribution Amount": An amount equal to:

            (a) with respect to any Distribution Date prior to the Final
      Distribution Date, the aggregate (without duplication) of the following--

                  (i) all payments of principal (including Principal
            Prepayments) received by or on behalf of the Trust with respect to
            the Trust Mortgage Loans during the related Collection Period, in
            each case net of any portion of the particular payment that
            represents a Late Collection of principal for which a P&I Advance
            was previously made for a prior Distribution Date or that represents
            the principal portion of a Monthly Payment due on or before the
            related Due Date in March 2005 or on a Due Date subsequent to the
            end of the related Collection Period,

                  (ii) all scheduled payments of principal due in respect of the
            Trust Mortgage Loans for their respective Due Dates occurring during
            the related Collection Period that were received by or on behalf of
            the Trust (other than as part of a Principal Prepayment) prior to
            the related Collection Period,

                  (iii) all Insurance and Condemnation Proceeds and Liquidation
            Proceeds received by or on behalf of the Trust with respect to any
            of the Trust Mortgage Loans during the related Collection Period
            that were identified and applied as recoveries of principal of such
            Trust Mortgage Loans in accordance with Section 1.03, in each case
            net of any portion of such proceeds that represents a Late
            Collection of principal due on or before the related Due Date in
            March 2005 or for which a P&I Advance was previously made for a
            prior Distribution Date,

                  (iv) all Insurance and Condemnation Proceeds, Liquidation
            Proceeds and REO Revenues received by or on behalf of the Trust in
            respect of any REO Properties during the related Collection Period
            that were identified and applied as recoveries of principal of the
            related REO Trust Mortgage Loans in accordance with Section 1.03, in
            each case net of any portion of such proceeds and/or revenues that
            represents a Late Collection of principal due on or before the
            related Due Date in March 2005 or for which a P&I Advance was
            previously made for a prior Distribution Date,

                  (v) the respective principal portions of all P&I Advances made
            in respect of the Trust Mortgage Loans and any REO Trust Mortgage
            Loans with respect to such Distribution Date; and

            (b) with respect to the Final Distribution Date, the aggregate
      Stated Principal Balance of the entire Mortgage Pool outstanding
      immediately prior to the Final Distribution Date.

            Notwithstanding the foregoing, (i) the Total Principal Distribution
Amount will be reduced if funds were used to reimburse Nonrecoverable Advances
or Workout-Delayed Reimbursement Amounts (as described in Section 1.05) on any
Distribution Date by an amount equal to the Total Principal Distribution
Adjustment Amount calculated with respect to such Distribution Date and (ii) the
Total Principal Distribution Amount will be increased if funds were used
therefrom to reimburse Nonrecoverable Advances or Workout-Delayed Reimbursement
Amounts on any Distribution Date by the amount of any recovery occurring during
the related Collection Period of an amount that was previously advanced with
respect to a Trust Mortgage Loan if such Nonrecoverable Advance or any
Workout-Delayed Reimbursement Amount was previously reimbursed from Total
Principal Distribution Amounts in a manner that resulted in a Total Principal
Distribution Adjustment Amount on a prior Distribution Date.

            "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.

            "Trust": The trust created hereby.

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

            "Trust Fund": All of the assets of all the REMIC Pools and the
Grantor Trust Pool.

            "Trust Mortgage 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 any Replacement Trust Mortgage Loan. As used herein,
the term "Trust Mortgage Loan" includes the related Note, Mortgage and other
documents contained in the related Mortgage File and any related agreements.
Each mortgage loan identified on the Trust Mortgage Loan Schedule shall
constitute a single Trust Mortgage Loan, regardless of the number of promissory
notes that collectively evidence the same.

            "Trust Mortgage Loan Schedule": The list of Trust Mortgage Loans
transferred on the Closing Date to the Trustee as part of the Trust Fund,
attached hereto as Exhibits B-1 and B-2, collectively, which list sets forth the
following information with respect to each Trust Mortgage Loan:

                  (i) the loan number (as specified in Exhibit A-1 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 Trust Mortgage 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 Interest Accrual Period;

                  (xiii) the Master Servicing Fee Rate;

                  (xiv) the Due Date;

                  (xv) whether such loan is an ARD Trust Mortgage Loan;

                  (xvi) whether the Trust Mortgage 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 Trust Mortgage Loan has the benefit of an
            Environmental Insurance Policy;

                  (xix) whether such Trust Mortgage Loan is secured by the
            related Borrower's interest in Ground Leases; and

                  (xx) whether such Trust Mortgage Loan is secured by a Letter
            of Credit.

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

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

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

            "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. For purposes of determining the
Trustee Fee with respect to the JFK Medical Pavilion II Loan, "Trust Mortgage
Loan" shall refer to the JFK Medical Pavilion II Loan REMIC Regular Interest as
the context requires.

            "Trustee Fee Rate": 0.0016% per annum.

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

            "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.

            "Uncertificated REMIC I Interests": Any of the Class LA-1-1, Class
LA-1-2, Class A-1-3, Class LA-2-1, Class LA-2-2, Class LA-2-3, Class LA-3-1,
Class A-3-2, Class LA-AB-1, Class LA-AB-2, Class LA-4-1, Class LA-4-2, Class
LA-J, Class LB, Class LC-1, Class LC-2, Class LD-1, Class LD-2, Class LE-1,
Class LE-2, Class LF, Class LG-1, Class LG-2, Class LH, Class LJ, Class LK,
Class LL, Class LM, Class LN, Class LO and Class LP Uncertificated Interests.

            "Uncovered Prepayment Interest Shortfall": As to any Distribution
Date and any Trust Mortgage Loan as to which a Principal Prepayment is made, the
excess, if any, of (i) the Prepayment Interest Shortfall relating to a Principal
Prepayment, if any, for such Trust Mortgage Loan as of such Distribution Date,
over (ii) the deposits made by the Master Servicer to the Trustee pursuant to
Section 3.02(c).

            "Uncovered Prepayment Interest Shortfall Amount": As to any
Distribution Date, the amount, if any, by which (i) the sum of the Uncovered
Prepayment Interest Shortfalls, if any, for such Distribution Date exceeds (ii)
the aggregate amount of Prepayment Interest Excesses, if any, on all Trust
Mortgage Loans for such Distribution Date.

            "Underwriters": Collectively, CSFB LLC, GMAC Commercial Holding
Capital Markets Corp., Banc of America Securities LLC and Greenwich Capital
Markets Inc.

            "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.

            "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 or other entity created or organized in, or
under the laws of, the United States, any State thereof or the District of
Columbia, or an estate whose income from sources without the United States is
includible in gross income for United States federal income tax purposes
regardless of its connection with the conduct of a trade or business within the
United States, 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.

            "Unpaid Interest Shortfall Amount": As to the first Distribution
Date and any Class of Regular Certificates, zero. As to any Distribution Date
after the first Distribution Date and any Class of Regular Certificates, the
amount, if any, by which the sum of the Interest Shortfall Amounts for such
Class for prior Distribution Dates exceeds the sum of the amounts distributed on
such Class on prior Distribution Dates in respect of such Interest Shortfall
Amounts.

            "Unrestricted Master Servicer Reports": Collectively, the CMSA
Delinquent Loan Status Report, CMSA Historical Loan Modification and Corrected
Mortgage Loan Report, CMSA Historical Liquidation Report, CMSA REO Status Report
and, if and to the extent filed with the Commission, such reports and files as
would, but for such filing, constitute Restricted Master Servicer Reports.

            "USPAP": The Uniform Standards of Professional Appraisal Practices.

            "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 and Class A-SP Certificates, based on the
respective Class Notional Amount of each such Class relative to the aggregate
Class Notional Amount of both such Classes; and (ii) in the case of any Class of
Principal Balance Certificates, a percentage equal to the product of 99% and a
fraction, the numerator of which is equal to the then Class Principal Balance of
such Class, and the denominator of which is equal to the then aggregate
Certificate Balance of the Principal Balance Certificates. The Class R, Class LR
and Class V Certificates will not be entitled to any Voting Rights. 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": Either the internet website maintained by the Trustee
(initially located at "www.ctslink.com"), the website maintained by the Master
Servicer, the website maintained by the Special Servicer or the website
maintained by the CMSA, as applicable.

            "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 Trust Mortgage Loans and REO Mortgage Loans in the Mortgage Pool,
weighted based on their respective Stated Principal Balances immediately prior
to such Distribution Date; provided, however, in the case of the JFK Medical
Pavilion II Loan, "Trust Mortgage Loan" shall refer to the JFK Medical Pavilion
II Loan REMIC Regular Interest for purposes of this definition.

            "Wells Fargo": As defined in the Preliminary Statement to this
Agreement.

            "Withheld Amounts": As defined in Section 3.28(a).

            "Workout-Delayed Reimbursement Amount": With respect to any Mortgage
Loan, the amount of any Advance made with respect to such Mortgage Loan on or
before the date such Mortgage Loan becomes a Corrected Mortgage 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 Mortgage Loan becomes a Corrected
Mortgage 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 designated as such, and paid or payable, as
the context may require, to the Special Servicer with respect to each Corrected
Mortgage Loan pursuant to Section 3.11(b).

            "Workout Fee Rate": 1.0%.

            "Yield Maintenance Charge": With respect to any Mortgage Loan, any
premium, fee or other additional amount paid or payable, as the context
requires, by a Borrower in connection with a Principal Prepayment on, or other
early collection of principal of, a Mortgage Loan, calculated, in whole or in
part, pursuant to a yield maintenance formula or otherwise pursuant to a formula
that reflects the lost interest, including a Yield Maintenance Minimum Amount.

            "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 Trust 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 Trust Mortgage 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 Master Servicer, on behalf
of the Trustee, will select a comparable publication to determine the Yield
Rate.

            Section 1.02 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 1.03 Certain Calculations in Respect of the Mortgage Loans

            (a) All amounts collected by or on behalf of the Trust in respect of
any Cross-Collateralized Group, including any payments from Borrowers, Insurance
and Condemnation Proceeds and Liquidation Proceeds, shall be applied among the
Trust Mortgage Loans constituting such Cross-Collateralized Group in accordance
with the express provisions of the related Mortgage Loan Documents and, in the
absence of such express provisions, in accordance with the Servicing Standard.
All amounts collected by or on behalf of the Trust in respect of any CBA A/B
Mortgage Loan Combination, including any payments from Borrowers, Insurance and
Condemnation Proceeds and Liquidation Proceeds, shall be applied between the
related CBA A Loan and CBA B Loan in accordance with the express provisions of
the related CBA A/B Intercreditor Agreement. All amounts collected by or on
behalf of the Trust in respect of or allocable to any particular Trust Mortgage
Loan (whether or not such Trust Mortgage Loan is an A Loan or constitutes part
of a Cross-Collateralized Group), including any payments from Borrowers,
Insurance and Condemnation Proceeds or Liquidation Proceeds, shall be applied to
amounts due and owing under the related Mortgage Loan Documents (including for
principal and accrued and unpaid interest) in accordance with the express
provisions of the related Mortgage Loan Documents and, in the absence of such
express provisions or if and to the extent that such terms authorize the lender
to use its discretion, shall be applied as follows: first, as a recovery of any
related and unreimbursed Servicing Advances and, if applicable, unpaid
Liquidation Expenses; second, as a recovery of accrued and unpaid interest on
such Trust Mortgage Loan to, but not including, the date of receipt by or on
behalf of the Trust (or, in the case of a full Monthly Payment from any
Borrower, through the related Due Date), exclusive, however, of any portion of
such accrued and unpaid interest that constitutes Default Interest or, in the
case of an ARD Trust Mortgage Loan after its Anticipated Repayment Date, that
constitutes Excess Interest; third, as a recovery of principal of such Trust
Mortgage Loan then due and owing, including by reason of acceleration of the
Trust Mortgage Loan following a default thereunder (or, if a Liquidation Event
has occurred in respect of such Trust Mortgage Loan, as a recovery of principal
to the extent of its entire remaining unpaid principal balance); fourth, unless
a Liquidation Event has occurred in respect of such Trust Mortgage Loan, as a
recovery of amounts to be currently applied to the payment of, or escrowed for
the future payment of, real estate taxes, assessments, insurance premiums,
ground rents (if applicable) and similar items; fifth, as a recovery of any
Penalty Charges then due and owing under such Trust Mortgage Loan; sixth, as a
recovery of any Yield Maintenance Charge then due and owing under such Trust
Mortgage Loan; seventh, as a recovery of any assumption fees and modification
fees then due and owing under such Trust Mortgage Loan; eighth, as a recovery of
any other amounts then due and owing under such Trust Mortgage Loan other than
remaining unpaid principal and, in the case of an ARD Trust Mortgage Loan after
its Anticipated Repayment Date, other than Excess Interest; ninth, as a recovery
of any remaining principal of such Trust Mortgage Loan to the extent of its
entire remaining unpaid principal balance; and, tenth, in the case of an ARD
Trust Mortgage Loan after its Anticipated Repayment Date, as a recovery of
accrued and unpaid Excess Interest on such ARD Trust Mortgage Loan to but not
including the date of receipt by or on behalf of the Trust.

            (b) Collections by or on behalf of the Trust in respect of each REO
Property (exclusive of amounts to be applied to the payment of the costs of
operating, managing, maintaining and disposing of such REO Property and, if such
REO Property relates to a Mortgage Loan Combination, exclusive of amounts
payable to the related B Loan Holder in accordance with the related
Intercreditor Agreement) shall be treated: first, as a recovery of any related
and unreimbursed Servicing Advances and, if applicable, unpaid Liquidation
Expenses; second, as a recovery of accrued and unpaid interest on the related
REO Trust Mortgage Loan to, but not including, the Due Date in the Collection
Period of receipt by or on behalf of the Trust, exclusive, however, of any
portion of such accrued and unpaid interest that constitutes Default Interest
or, in the case of an REO Trust Mortgage Loan that relates to an ARD Trust
Mortgage Loan after its Anticipated Repayment Date, that constitutes Excess
Interest; third, as a recovery of principal of the related REO Trust Mortgage
Loan to the extent of its entire unpaid principal balance; fourth, as a recovery
of any Penalty Charges deemed to be due and owing in respect of the related REO
Trust Mortgage Loan; fifth, as a recovery of any Yield Maintenance Charge deemed
to be due and owing in respect of the related REO Trust Mortgage Loan; sixth, as
a recovery of any other amounts deemed to be due and owing in respect of the
related REO Trust Mortgage Loan (other than, in the case of an REO Trust
Mortgage Loan that relates to an ARD Trust Mortgage Loan after its Anticipated
Repayment Date, accrued and unpaid Excess Interest); and seventh, in the case of
an REO Trust Mortgage Loan that relates to an ARD Trust Mortgage Loan after its
Anticipated Repayment Date, as a recovery of any accrued and unpaid Excess
Interest on such REO Trust Mortgage Loan to but not including the date of
receipt by or on behalf of the Trust.

            (c) For the purposes of this Agreement, Excess Interest on an ARD
Trust Mortgage Loan or a successor REO Trust Mortgage Loan with respect thereto
shall be deemed not to constitute principal or any portion thereof and shall not
be added to the unpaid principal balance or Stated Principal Balance of such ARD
Trust Mortgage Loan or successor REO Trust Mortgage Loan, notwithstanding that
the terms of the related loan documents so permit. To the extent any Excess
Interest is not paid on a current basis, it shall be deemed to be deferred
interest.

            (d) The foregoing applications of amounts received in respect of any
Mortgage Loan, Mortgage Loan Combination or REO Property shall be determined by
the Master Servicer and reflected in the appropriate monthly report from the
Master Servicer and in the appropriate monthly Trustee Report as provided in
Section 4.02.

            (e) [Reserved]

            (f) Any Mortgage Loan payment is deemed to be received on the date
such payment is actually received by the Master Servicer, the Special Servicer
or the Trustee; 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
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
Master Servicer shall apply such Principal Prepayment to reduce the outstanding
principal balance of the related Mortgage Loan as if such Principal Prepayment
had been received, on the following Due Date (so long as such next following Due
Date is in the same Collection Period as the actual date of receipt) and (ii)
all other Principal Prepayments with respect to any Mortgage Loan are deemed to
be received on the date they are applied to reduce the outstanding principal
balance of such Mortgage Loan.

            (g) Notwithstanding the terms of any Trust Mortgage Loan, the 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 Trust Mortgage Loan,
except to the extent that (i) all reserves required to be established with the
Master Servicer and then required to be funded pursuant to the terms of such
Trust Mortgage Loan have been so funded, (ii) all payments of principal and
interest then due on such Trust Mortgage Loan have been paid and (iii) all
related operating expenses, if applicable, have been paid to the related
Lock-Box Account or reserved for pursuant to the related Lock-Box Agreement.

            (h) Any reference to the Certificate Balance of any Class of
Certificates on or as of a Distribution Date shall refer to the Certificate
Balance of such Class of Certificates on such Distribution Date after giving
effect to (a) any distributions made on such Distribution Date pursuant to
Section 4.01(a) and (b) any Realized Loss allocated to such Class on such
Distribution Date pursuant to Section 4.04.

            Section 1.04 Crossed Trust Mortgage Loans

            Notwithstanding anything herein to the contrary, it is hereby
acknowledged that the groups of Trust Mortgage Loans identified on the Trust
Mortgage Loan Schedule as being cross-collateralized with each other are, in the
case of each such particular group of Trust Mortgage Loans, by their terms,
cross-defaulted and cross-collateralized with each other. For purposes of
reference only in this Agreement, and without in any way limiting the servicing
rights and powers of the Master Servicer and/or the Special Servicer, with
respect to any Crossed Trust Mortgage Loan (or successor REO Trust Mortgage
Loan), the Mortgaged Property (or REO Property) that relates or corresponds
thereto shall be the property identified in the Trust Mortgage Loan Schedule as
corresponding thereto. The provisions of this Agreement, including each of the
defined terms set forth in Section 1.01, shall be interpreted in a manner
consistent with this Section 1.04; provided that, if there exists with respect
to any Cross-Collateralized Group only one original of any document referred to
in the definition of "Mortgage File" covering all the Trust Mortgage Loans in
such Cross-Collateralized Group, then the inclusion of the original of such
document in the Mortgage File for any of the Trust Mortgage Loans constituting
such Cross-Collateralized Group shall be deemed an inclusion of such original in
the Mortgage File for each such Trust Mortgage Loan.

            Section 1.05 Certain Adjustments to the Principal Distributions on
the Certificates

            (a) If, in accordance with the provisions of this Agreement, any
party hereto is reimbursed out of general collections (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) on the Mortgage Pool on
deposit in the Collection Account for any Nonrecoverable Advance or any
Workout-Delayed Reimbursement Amount (in each case, together with interest
accrued and payable thereon), then (for purposes of calculating distributions on
the Certificates) such reimbursement and payment of interest shall be deemed to
have been made:

            first, out of any amounts then on deposit in the Collection Account
that represent payments or other collections of principal received by the Trust
with respect to the Mortgage Pool that, but for their application to reimburse a
Nonrecoverable Advance or Workout-Delayed Reimbursement Amount, as applicable,
and/or to pay interest thereon, would be included in the Available Distribution
Amount for any subsequent Distribution Date;

            second, 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) then on deposit in the Collection Account
that represent any other payments or other collections received by the Trust
with respect to the Mortgage Pool that, but for their application to reimburse a
Nonrecoverable Advance or Workout-Delayed Reimbursement Amount, as applicable,
and/or to pay interest thereon, would be included in the Available Distribution
Amount for any subsequent Distribution Date; and

            third, 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) then on deposit in the
Collection Account that may be available to reimburse the subject Nonrecoverable
Advance or Workout-Delayed Reimbursement Amount, as applicable, and/or to pay
interest thereon.

            (b) If and to the extent that any payment or other collection of
principal of any Trust Mortgage Loan or REO Trust Mortgage Loan is deemed to be
applied in accordance with clause first of the preceding paragraph to reimburse
a Nonrecoverable Advance or Workout-Delayed Reimbursement Amount, as applicable,
or in each case, to pay interest thereon, and further if and to the extent that
such payment or other collection of principal constitutes part of the Total
Principal Distribution Amount for any Distribution Date, then the Total
Principal Distribution Amount for such Distribution Date shall be reduced by the
portion, if any, of such payment or other collection of principal that, but for
the application of this paragraph, would have been included as part of such
Total Principal Distribution Amount.

            (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 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 Total 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 MORTGAGE LOANS;
                        ORIGINAL ISSUANCE OF CERTIFICATES

            Section 2.01 Conveyance of Original Trust Mortgage 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 2005-C1". 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. 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 Original
Trust Mortgage Loans (including in the case of the JFK Medical Pavilion II Loan,
the JFK Medical Pavilion II Loan REMIC Regular Interest and the JFK Medical
Pavilion II Loan REMIC Residual Interest), (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 Original Trust Mortgage Loans (other than payments of
principal and interest due and payable on the Original Trust Mortgage Loans on
or before the Cut-off Date and Principal Prepayments paid on or before the
Cut-off Date). The transfer of the Original Trust Mortgage Loans and the related
rights and property accomplished hereby is absolute and, notwithstanding Section
11.07, 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 of the Original Column Trust Mortgage Loans from
Column, pursuant to the Column Mortgage Loan Purchase Agreement, as a purchase
of such Trust Mortgage Loans from Column; (ii) its acquisition of the Original
GMACCM Trust Mortgage Loans from GMACCM, pursuant to the GMACCM Mortgage Loan
Purchase Agreement, as a purchase of such Trust Mortgage Loans from GMACCM; and
(iii) its transfer of the Original Trust Mortgage Loans to the Trust, pursuant
to this Section 2.01(a), as a sale of such Trust Mortgage Loans to the Trust;
provided that, in the case of the transactions described in clauses (i) and (iv)
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. Regardless of its treatment of
the transfer of the Original Trust Mortgage Loans to the Trust under GAAP, 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 Original Trust
Mortgage 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), 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 item (xx) of the definition of "Mortgage File") for each Original
Trust Mortgage Loan so assigned.

            Notwithstanding the foregoing, if a Mortgage Loan Seller cannot
deliver, or cause to be delivered as to any Trust Mortgage Loan, the original
Note, such Mortgage Loan Seller shall deliver a copy or duplicate original of
such Note, together with an affidavit substantially in the form attached as
Exhibit J hereto, certifying that the original thereof has been lost or
destroyed.

            Notwithstanding the foregoing, if the applicable Mortgage Loan
Seller cannot deliver, or cause to be delivered, as to any Trust Mortgage 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 filed in
accordance with the transfer contemplated by the related Mortgage Loan Purchase
Agreement), (xii) and (xiv) (other than assignments of UCC Financing Statements
to be filed in accordance with the transfer contemplated by the related Mortgage
Loan Purchase Agreement) 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 within 120 days of 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 county recorder's office such original or
photocopy).

            Notwithstanding the foregoing, if the applicable Mortgage Loan
Seller cannot deliver, or cause to be delivered, as to any Trust Mortgage 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 filed in
accordance with the transfer contemplated by the related Mortgage Loan Purchase
Agreement), (xii) and (xiv) (other than assignments of UCC Financing Statements
to be filed in accordance with the transfer contemplated by the related Mortgage
Loan Purchase Agreement) 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 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 on or before the Closing
Date.

            Notwithstanding the foregoing, if any Mortgage Loan Seller fails 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 office and such
Mortgage Loan Seller has so notified the Trustee, 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 original UCC
Financing Statement assignment in a form appropriate for filing.

            None of the Trustee, the Master Servicer or the Special 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).

            (c) At the expense of the related Mortgage Loan Seller, the Trustee
(directly or through its designee) shall, as to each Trust Mortgage 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 Replacement Trust 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, 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 clauses (xi) and
(xiv) 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 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 respective Mortgage Loan Purchase
Agreements provide for the reimbursement of the Trustee, in each case by the
related Mortgage Loan Seller, for the Trustee's costs and expenses incurred in
performing its obligation under this Section 2.01(c).

            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 Trust
Mortgage Loans conveyed by it to the Depositor (or, in the case of a Replacement
Trust Mortgage Loan, to the Trustee) 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) In connection with the Depositor's assignment pursuant to
Section 2.01(a), 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 Master Servicer, within 10 Business Days after the
Closing Date, all documents and records in the Depositor's or the applicable
Mortgage Loan Seller's possession relating to the Trust Mortgage Loans
(including reserve and escrow agreements, rent rolls, leases, environmental and
engineering reports, third-party underwriting reports, appraisals, surveys,
legal opinions, financial statements, operating statements and any other
information provided by the respective Borrower from time to time and any other
documents in the related Servicing File, but excluding any draft documents,
attorney/client privileged communications and documents prepared by the
applicable Mortgage Loan Seller or any of its Affiliates solely for internal
communication, credit underwriting or due diligence analyses, except for the
underwriting information contained in the 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, and all such items shall be held by the Master Servicer on behalf of
the Trustee in trust for the benefit of the Certificateholders (and, insofar as
such items relate to a B Loan, the related B Loan Holder).

            In addition, with respect to each Trust Mortgage Loan under which
any Additional Collateral is in the form of a Letter of Credit as of the Closing
Date, the Depositor hereby represents and warrants that it has contractually
obligated the related Mortgage Loan Seller to cause to be prepared, executed and
delivered to the issuer of each such Letter of Credit such notices, assignments
and acknowledgments as are required under such Letter of Credit to assign,
without recourse, to (and vest in) the Trustee such party's rights as the
beneficiary thereof and drawing party thereunder.

            (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 Master Servicer, 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 reasonable 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 Original Trust
Mortgage Loans in the name of such Mortgage Loan Seller or any other name, to be
transferred to the Master Servicer (or a Sub-Servicer at the direction of the
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 Trust Mortgage 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 Trust
Mortgage Loans in such group of Crossed Trust Mortgage Loans, the inclusion of
the original or certified copy of such document or instrument in the Mortgage
File for any of such Crossed Trust Mortgage Loans and the inclusion of a copy of
such original or certified copy in each of the Mortgage Files for the other
Crossed Trust Mortgage Loans in such group of Crossed Trust Mortgage Loans shall
be deemed the inclusion of such original or certified copy in the Mortgage Files
for each such Crossed Trust Mortgage Loan.

            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 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; provided that to the extent that a
Mortgage File relates to an A Loan, the Trustee shall also hold such Mortgage
File in the trust on behalf of the related B Loan Holders; provided further that
the Trustee or any Custodian appointed by the Trustee pursuant to Section 8.12
shall hold any Letter of Credit in a custodial capacity only and shall have no
obligation to maintain, extend the term of, enforce or otherwise pursue any
rights under such Letter of Credit which obligation the Master Servicer hereby
undertakes.

            (b) Within 60 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
Servicer, the Special Servicer and the respective Mortgage Loan Sellers that, as
to each Trust Mortgage Loan listed in the Trust Mortgage Loan Schedule (other
than any Trust Mortgage Loan paid in full and any Trust Mortgage 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), (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 such Mortgage Loan Seller constituting the Mortgage Files have been
received, appear to 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 appear to relate to the Trust
Mortgage Loans identified on the Trust Mortgage Loan Schedule.

            (c) The Trustee shall review each of the Mortgage Loan Documents
received after the Closing Date; and, 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 Servicer, the
Special Servicer and the respective Mortgage Loan Sellers that, as to each Trust
Mortgage Loan listed on the Trust Mortgage Loan Schedule (excluding any Trust
Mortgage Loan as to which a Liquidation Event has occurred or any Trust Mortgage
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), (xi), (xii), (xvi), (xviii) and (xxi) 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 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. Further, with
respect to the documents described in clause (xi) of the definition of the
Mortgage File, the Trustee may assume, for purposes of the certification
delivered pursuant to this Section 2.02(c), that the related Mortgage File
should include one state level UCC Financing Statement filing in the state of
incorporation of the related Borrower for each Mortgaged Property, or, with
respect to any Mortgage Loan that has two or more Borrowers, one state level UCC
Financing Statement filing in the state of incorporation of each such Borrower.
The Trustee shall, upon request, provide the 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 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 clauses
(vi), (vii), (viii), (x), (xiii), (xiv), (xv), (xvii) and (xix) 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 Trust Mortgage Loan Schedule, (ii) 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, 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. To the extent the Trustee has actual
knowledge or is notified of any fixture or real property UCC Financing
Statements, the Trustee shall file an assignment to the Trust with respect to
such UCC Financing Statements in the appropriate jurisdiction under the UCC at
the expense of the related Mortgage Loan Seller.

            (e) If, in the process of reviewing the Mortgage Files or at any
time thereafter, the Trustee finds that a Defect exists with respect to any
Mortgage File, the Trustee shall promptly so notify the Depositor, the Master
Servicer, the Special Servicer and the applicable Mortgage Loan Seller (and,
solely with respect to any Mortgage Loan Combination, the related Junior Loan
Holder(s), as applicable), by providing a written report (the "Trustee Exception
Report") setting forth for each affected Trust Mortgage Loan, with
particularity, the nature of such Defect. The Trustee shall not be required to
verify the conformity of any document with the Trust 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 Trust Mortgage Loans
identified on the Trust Mortgage Loan Schedule, appear to be what they purport
to be, or have not been torn, mutilated or otherwise defaced.

            (f) Upon the second anniversary of the Closing Date, the Trustee
shall deliver a final exception report as to any remaining Defects or required
Mortgage 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 Trust Mortgage Loans by the Mortgage
Loan Sellers for Defects in Mortgage Files and Breaches of Representations and
Warranties

            (a) The Depositor hereby represents, warrants and covenants 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 Original Trust
      Mortgage 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 Original Trust
      Mortgage Loans or the ability of the Depositor to carry out the
      transactions contemplated by this Agreement;

            (v) The Depositor's transfer of the Original Trust Mortgage 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 Original Trust Mortgage
      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 Original Trust
      Mortgage Loans to the Trustee, pursuant to Section 2.01(a);

            (viii) After giving effect to its transfer of the Original Trust
      Mortgage 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 Original Trust
      Mortgage 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 Original Trust Mortgage 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 Original Trust Mortgage Loans to any Person other
      than the Trustee;

            (xiii) The Depositor is transferring all of its right, title and
      interest in and to the Original Trust Mortgage 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;

            (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 Original Trust Mortgage Loans
      by the Depositor to the Trustee; and

            (xv) Following consummation of the conveyance of the Original Trust
      Mortgage Loans by the Depositor to the Trustee, the Depositor shall take
      no action inconsistent with the Trust Fund's ownership of the Original
      Trust Mortgage Loans, and if a third party, including a potential
      purchaser of the Original Trust Mortgage Loans, should inquire, the
      Depositor shall promptly indicate that the Original Trust Mortgage Loans
      have been sold and shall claim no ownership interest therein.

            (b) If any Certificateholder, the Master Servicer, the Special
Servicer or the Trustee discovers or receives notice of a Defect or a Breach
with respect to any Trust Mortgage Loan, it shall give notice to the Master
Servicer, the Special Servicer and the Trustee. If the Master Servicer or the
Special Servicer determines that such Defect or Breach materially and adversely
affects the value of any Trust Mortgage Loan or the interests of the
Certificateholders therein (any such Defect or Breach, a "Material Defect" and a
"Material Breach", respectively), it shall give prompt written notice of such
Material Defect or Material Breach to the Depositor, the Trustee, the Master
Servicer, the Special Servicer and the applicable Mortgage Loan Seller and shall
request that such Mortgage Loan Seller, not later than the earlier of 90 days
from the receipt by the applicable Mortgage Loan Seller of such request or the
Mortgage Loan Seller's discovery of such Material Breach or Material Defect
(subject to the second succeeding paragraph, the "Initial Resolution Period"),
(i) cure such Material Defect or Material Breach in all material respects, (ii)
repurchase the affected Trust Mortgage Loan at the applicable Purchase Price in
conformity with the related Mortgage Loan Purchase Agreement, or (iii)
substitute a Qualified Substitute Trust Mortgage Loan for such affected Trust
Mortgage Loan (provided that in no event shall such substitution occur later
than the second anniversary of the Closing Date) and pay to the Master Servicer
for deposit into the 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 Defect or Material
Breach is capable of being cured but not within the Initial Resolution Period,
(ii) such Material Defect or Material Breach is not related to any Trust
Mortgage Loan's not being a "qualified mortgage" within the meaning of the REMIC
Provisions, and (iii) the Mortgage Loan Seller has commenced and is diligently
proceeding with the cure of such Material Defect or Material Breach within the
Initial Resolution Period, then the Mortgage Loan Seller shall have an
additional 90 days to cure such Material Defect or Material Breach (provided
that the Mortgage Loan Seller has delivered to the Master Servicer, the Special
Servicer, the Rating Agencies and the Trustee an officer's certificate from an
officer of the Mortgage Loan Seller 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 JFK Medical Pavilion II Loan, as contemplated by this Section
2.03(b), the JFK Medical Pavilion II Loan REMIC Regular Interest and the JFK
Medical Pavilion II Loan REMIC Residual Interest shall also be repurchased from
the Trust Fund. In the case of a substitution for the JFK Medical Pavilion II
Loan, all references in this Agreement to such Mortgage 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
JFK Medical Pavilion II Loan REMIC Regular Interest shall not be changed.

            Any of the following will cause a document in the Mortgage File to
be deemed to have a "Defect" and to be conclusively presumed to materially and
adversely affect the interests of Certificateholders in a Trust Mortgage Loan
and the value of a Trust Mortgage Loan: (a) the absence from the Mortgage File
of the original signed Note, unless the Mortgage File contains a signed lost
note affidavit and indemnity; (b) the absence from the Mortgage File of 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, together
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 absence from the Mortgage File of the item called for by paragraph (ix)
of the definition of Mortgage File; (d) the absence from the Mortgage File of
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, together with a certificate stating that the original intervening
assignment was sent for recordation; (e) the absence from the Mortgage File of
any required original Letter of Credit (unless such original has been delivered
to the Master Servicer and a copy thereof is part of the Mortgage File) 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 absence from the
Mortgage File of the original or a copy of any required Ground Lease.

            Any Defect or Breach which causes any Trust Mortgage Loan not to be
a "qualified mortgage" (within the meaning of Section 860G(a)(3) of the Code)
shall be deemed to materially and adversely affect the interest of the
Certificateholders therein and the Initial Resolution Period for the affected
Trust Mortgage Loan shall be 90 days following the earlier of (i) notice to the
related Mortgage Loan Seller of the discovery of such Defect or Breach by any
party to this Agreement and (ii) the related Mortgage Loan Seller's discovery of
such Defect or Breach (which period shall not be subject to extension).

            If any affected Trust Mortgage Loan is to be repurchased by reason
of a Material Breach or a Material Defect with respect thereto, the Master
Servicer shall designate the Collection Account as the account into which funds
in the amount of the Purchase Price are to be deposited by wire transfer.

            If (x) a Trust Mortgage Loan is to be repurchased or substituted for
as contemplated above, (y) such Trust Mortgage Loan is a Crossed Trust Mortgage
Loan and (z) the applicable Defect or Breach does not otherwise constitute a
Material Defect or a Material Breach, as the case may be, as to any related
Crossed Trust Mortgage Loan, then the applicable Defect or Breach shall be
deemed to constitute a Material Defect or a Material Breach as to any related
Crossed Trust Mortgage Loan for purposes of the above provisions, and the
Mortgage Loan Seller shall be required to repurchase or substitute for any
related Crossed Trust Mortgage Loan in accordance with the provisions above
unless the Crossed Trust Mortgage Loan Repurchase Criteria would be satisfied if
the Mortgage Loan Seller were to repurchase or substitute for only the affected
Crossed Trust Mortgage Loans as to which a Material 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 Trust Mortgage Loan Repurchase
Criteria would be so satisfied, the Mortgage Loan Seller may elect either to
repurchase or substitute for only the affected Crossed Trust Mortgage Loan as to
which the Material Defect or Material Breach exists or to repurchase or
substitute for the aggregated Crossed Trust Mortgage Loans. The determination of
the Special Servicer as to whether the Crossed Trust Mortgage Loan Repurchase
Criteria have been satisfied shall be conclusive and binding in the absence of
manifest error. In the event that one or more of such other Crossed Trust
Mortgage Loans satisfy the Crossed Trust Mortgage Loan Repurchase Criteria, the
Mortgage Loan Seller may elect either to repurchase or substitute for only the
affected Crossed Trust Mortgage Loan as to which the related Defect or Breach
exists or to repurchase or substitute for all of the Crossed Trust Mortgage
Loans. The Special Servicer will be entitled to cause to be delivered, or direct
the Mortgage Loan Seller to (in which case the Mortgage Loan Seller shall) cause
to be delivered to the 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 Trust Mortgage Loan Repurchase Criteria has been
satisfied, in each case at the expense of the Mortgage Loan Seller if the scope
and cost of the Appraisal is approved by the Mortgage Loan Seller (such approval
not to be unreasonably withheld).

            With respect to any Crossed Trust Mortgage Loan conveyed hereunder,
to the extent that the Mortgage Loan Seller repurchases an affected Crossed
Trust Mortgage Loan in the manner prescribed above while the Trustee continues
to hold any related Crossed Trust Mortgage Loans, the Mortgage Loan Seller and
the Depositor have agreed in the Mortgage Loan Purchase Agreement to modify,
upon such repurchase or substitution, the related Mortgage Loan Documents in a
manner such that such affected Crossed Trust Mortgage Loan repurchased or
substituted by the related Mortgage Loan Seller, on the one hand, and any
related Crossed Trust Mortgage Loans held by the Trustee, on the other, would no
longer be cross-defaulted or cross-collateralized with one another; provided
that the Mortgage Loan Seller, at its expense, shall have furnished the Trustee
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
Mortgage Loan Seller and the Depositor have agreed in the Mortgage Loan Purchase
Agreement that such repurchase or substitution of only the affected Crossed
Trust Mortgage Loan, notwithstanding anything to the contrary herein, shall not
be permitted (in which case, the Mortgage Loan Seller will be obligated to
purchase all Crossed Trust Mortgage Loans). Any reserve or other cash collateral
or Letters of Credit securing the affected Crossed Trust Mortgage Loans shall be
allocated between such Trust Mortgage Loans in accordance with the Mortgage Loan
Documents. All other terms of the Trust Mortgage Loans shall remain in full
force and effect, without any modification thereof (unless otherwise modified in
accordance with Section 3.20 hereof).

            In connection with any repurchase of or substitution for a Trust
Mortgage Loan contemplated by this Section 2.03, the Trustee, the Master
Servicer and the Special Servicer shall each tender to the related Mortgage Loan
Seller (in the event of a repurchase or substitution by a Mortgage Loan Seller)
upon delivery to each of the Trustee, the Master Servicer and the Special
Servicer of a trust receipt executed by such Mortgage Loan Seller; (i) all
portions of the Mortgage File, the Servicing File and other documents pertaining
to such Trust Mortgage Loan possessed by it, and each document that constitutes
a part of the Mortgage File that was endorsed or assigned to the Trustee, shall
be endorsed or assigned, as the case may be, to such Mortgage Loan Seller in the
same manner as provided in Section 7 of the related Mortgage Loan Purchase
Agreement, and (ii) any escrow payments and reserve funds held by it, or on its
behalf, with respect to such repurchased or replaced Trust Mortgage Loan.

            Notwithstanding the foregoing, if there is a Material Breach or
Material Defect with respect to one or more Mortgaged Properties (but not all of
the Mortgaged Properties) with respect to a Trust Mortgage Loan, the applicable
Mortgage Loan Seller will not be obligated to repurchase or substitute for the
entire Trust Mortgage Loan if the Trust Mortgage Loan may, pursuant to the terms
of the related Mortgage Loan Documents, be severed to allow for the repurchase
of a portion of the Trust Mortgage Loan representing the affected Mortgaged
Property and the Mortgage Loan remaining after such severance satisfies the
requirements, if any, set forth in the Mortgage Loan Documents and (i) the
Mortgage Loan Seller provides an Opinion of Counsel to the effect that such
partial release would not cause an Adverse REMIC Event to occur, (ii) such
Mortgage Loan Seller pays (or causes to be paid) the applicable release price
required under the Mortgage 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 Master Servicer, the Special
Servicer, the Trustee or the Trust Fund and (iii) such cure by release of such
Mortgaged Property is effected within the time periods specified for cures of
Material Breach or Material Defect in this Section 2.03(b).

            Whenever one or more Replacement Trust Mortgage Loans are
substituted for a Defective Trust Mortgage Loan by a Mortgage Loan Seller, the
Master Servicer shall direct the party effecting the substitution to deliver the
related Mortgage File to the Trustee, to certify that such Replacement Trust
Mortgage Loan satisfies or such Replacement Trust Mortgage Loans satisfy, as the
case may be, all of the requirements of the definition of "Qualified Substitute
Trust Mortgage Loan" and to send such certification to the Trustee. No mortgage
loan may be substituted for a Defective Trust Mortgage Loan, as contemplated by
this Section 2.03, if the Trust Mortgage Loan to be replaced was itself a
Replacement Trust Mortgage Loan, in which case, absent a cure of the relevant
Material Breach or Material Defect in accordance herewith, the affected Trust
Mortgage Loan will be required to be repurchased as contemplated hereby. Monthly
Payments due with respect to each Replacement Trust Mortgage Loan after the
related date of substitution, and Monthly Payments due with respect to each
Trust Mortgage Loan that is being replaced thereby after the related Due Date in
March 2005 and on or prior to the related date of substitution, shall be part of
the Trust Fund. Monthly Payments due with respect to each Replacement Trust
Mortgage Loan on or prior to the related date of substitution, and Monthly
Payments due with respect to each Trust Mortgage Loan that is being replaced
thereby after the related date of substitution, shall not be part of the Trust
Fund and are to be remitted by the Master Servicer to the party effecting the
related substitution promptly following receipt.

            In the case of a Column Trust Mortgage Loan, all references in the
foregoing paragraphs of this Section 2.03(b) to "Mortgage Loan Seller" shall be
deemed to also be references to the Column Performance Guarantor (but only if
and to the extent that the Column Performance Guarantor would, pursuant to the
Column Performance Guarantee, be liable for those obligations of Column as a
Mortgage Loan Seller under the Column Mortgage Loan Purchase Agreement that are
contemplated above in this Section 2.03(b)).

            Section 7 of each of the Mortgage Loan Purchase Agreements and the
Column Performance Guarantee provide the sole remedy available to the
Certificateholders, or the Trustee on behalf of the Certificateholders,
respecting any Defect or Breach.

            If a Mortgage Loan Seller (and, in the case of a Column Trust
Mortgage Loan, the Column Performance Guarantor) defaults on its obligations to
repurchase any Trust Mortgage Loan as contemplated by Section 2.03(b), the
Trustee shall promptly notify the Certificateholders, the Rating Agencies, the
Master Servicer and the Special Servicer of such default. The Trustee shall
enforce the obligations of the Mortgage Loan Sellers under Section 7 of the
related Mortgage Loan Purchase Agreement and the obligations of the Column
Performance Guarantor 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 Trust Mortgage 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 Mortgage Loan Seller; second, pursuant to Section 3.05(a)(ix) 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)(x) out of general collections on
the Trust Mortgage Loans on deposit in the Collection Account.

            If the applicable Mortgage Loan Seller or the Column Performance
Guarantor incurs any expense in connection with the curing of a Breach which
also constitutes a default under the related Trust Mortgage Loan, such Mortgage
Loan Seller or the Column Performance Guarantor, as the case may be, 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 Mortgage Loan Seller's or the Column Performance
Guarantor'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 Trust Mortgage 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 Trust Mortgage Loan; and provided, further, that in the event
and to the extent that such expenses of such Mortgage Loan Seller or the Column
Performance Guarantor, as the case may be, in connection with any Trust Mortgage
Loan exceed five percent of the then outstanding principal balance of such Trust
Mortgage Loan, then such Mortgage Loan Seller's or the Column Performance
Guarantor's rights to reimbursement pursuant to this paragraph with respect to
such Trust Mortgage Loan and such excess expenses shall not (without the prior
written consent of the Master Servicer or the Special Servicer, as applicable,
which shall not be unreasonably withheld or delayed) be exercised until the
payment in full of such Trust Mortgage Loan (as such Trust Mortgage Loan may be
amended or modified pursuant to the terms of this Agreement). Notwithstanding
any other provision of this Agreement to the contrary, the Master Servicer shall
not have any obligation pursuant to this Agreement to collect such reimbursable
amounts on behalf of such Mortgage Loan Seller or the Column Performance
Guarantor, as the case may be; provided, however, that the preceding clause
shall not operate to prevent the Master Servicer from using reasonable efforts,
exercised in the Master Servicer's sole discretion, to collect such amounts to
the extent consistent with the Servicing Standard. A Mortgage Loan Seller or the
Column Performance Guarantor may pursue its rights to reimbursement of such
expenses directly against the Borrower, by suit or otherwise; provided that (i)
the Master Servicer or, with respect to a Specially Serviced Trust Mortgage
Loan, the Special Servicer determines in the exercise of its sole discretion
consistent with the Servicing Standard that such actions by the Mortgage Loan
Seller or the Column Performance Guarantor, as the case may be, will not impair
the Master Servicer's and/or the Special Servicer's collection or recovery of
principal, interest and other sums due with respect to the related Mortgage Loan
which would otherwise be payable to the Master Servicer, the Special Servicer,
the Trustee, the Certificateholders and any related Junior Loan Holder(s)
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 Mortgage 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 REMIC I Interests; Execution
of Certificates

            Subject to Sections 2.01 and 2.02, the Trustee hereby acknowledges
the assignment to it of the Trust Mortgage Loans, the JFK Medical Pavilion II
Loan REMIC Regular Interest and the JFK Medical Pavilion II 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 Trust Mortgage Loans, other than the JFK Medical Pavilion II Loan, and the
JFK Medical Pavilion II Loan REMIC Regular Interest, exclusive of Excess
Interest thereon, on behalf of REMIC I and the Holders of the Certificates, (ii)
acknowledges the issuance of the Uncertificated REMIC I Interests and, pursuant
to the written request of the Depositor executed by an officer of the Depositor
acknowledges that it has caused the Certificate Registrar to authenticate and to
deliver to or upon the order of the Depositor the Class LR Certificates, in
exchange for such Trust Mortgage Loans and the JFK Medical Pavilion II Loan
REMIC Regular Interest, exclusive of Excess Interest thereon, 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 REMIC I
Interests, the Regular Certificates and the Class R Certificates, (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 and (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 JFK Medical Pavilion II Loan REMIC Residual
Interest, the Class LR Certificates, and the Depositor hereby acknowledges the
receipt by it or its designees, of all such Certificates.

            Section 2.05 Acceptance of Grantor Trusts; Issuance of the Class V
and Class LR Certificates

            It is the intention of the parties hereto that the segregated pool
of assets consisting of any collections of Excess Interest received on the ARD
Trust Mortgage Loans (and any successor REO Trust Mortgage Loans with respect
thereto) and the JFK Medical Pavilion II Loan REMIC Residual Interest constitute
a Grantor Trust for federal income tax purposes and, further, that such
segregated pool of assets be designated as the "Grantor Trust Pool". The
Trustee, by its execution and delivery hereof, acknowledges the assignment to it
of the assets of the Grantor Trust Pool and declares that it holds and will hold
such assets in trust for the exclusive use and benefit of all present and future
Holders of the Class V Certificates, in the case of Excess Interest, and the
Class LR Certificates, in the case of the JFK Medical Pavilion II Loan REMIC
Residual Interest. Concurrently with the assignment to it of the assets included
in the Grantor Trust Pool, the Trustee shall execute, and the Certificate
Registrar shall authenticate and deliver, to or upon the order of the Depositor,
the Class V and Class LR Certificates in authorized denominations evidencing the
entire beneficial ownership of the Grantor Trust Pool. The respective rights of
the Holders of the Class V and Class LR Certificates to receive distributions
from the proceeds of the Grantor Trust Pool, and all ownership interests of such
Holders in and to such distributions, shall be as set forth in this Agreement.

                                   ARTICLE III

                 ADMINISTRATION AND SERVICING OF THE TRUST FUND

            Section 3.01 Master Servicer to Act as Master Servicer; Special
Servicer to Act as Special Servicer; Administration of the Mortgage Loans

            (a) Each of the Master Servicer and the Special Servicer shall
service and administer the Mortgage Loans (and, with respect to the Special
Servicer, any 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 or, in the case of a Mortgage Loan
Combination, in the best interests and for the benefit of the Certificateholders
and the related B Loan Holder (as a collective whole) (as determined by the
Master Servicer or the 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 Mortgage Loans and any and all applicable intercreditor,
co-lender and similar agreements and, to the extent not inconsistent with the
foregoing, further as follows--

            (i) with the same care, skill and diligence as is normal and usual
      in the Master Servicer's or Special Servicer's, as applicable, general
      mortgage servicing and REO property management activities on behalf of
      third parties or on behalf of itself, whichever is higher, with respect to
      mortgage loans that are comparable to those for which it is obligated to
      service and administer pursuant to this Agreement; and

            (ii) with a view to the timely collection of all scheduled payments
      of principal, and interest under the Mortgage Loans and, in the case of
      the Special Servicer, if a Mortgage Loan comes into and continues in
      default and if, in the good faith and reasonable judgment of the Special
      Servicer, no satisfactory arrangements can be made for the collection of
      the delinquent payments, the maximization of the recovery on such Mortgage
      Loan to the Certificateholders (as a collective whole) or, in the case of
      a Mortgage Loan Combination, for the benefit of the Certificateholders and
      the related B Loan Holder (as a collective whole), on a net present value
      basis; but

            (iii) without regard to--

                  (A) any relationship that the Master Servicer or the Special
            Servicer, as the case may be, or any Affiliate thereof may have with
            the related Borrower,

                  (B) the ownership of any Certificate or any interest in a B
            Loan by the Master Servicer or the Special Servicer, as the case may
            be, or by any Affiliate thereof,

                  (C) the Master Servicer's obligation to make Advances,

                  (D) the Special Servicer's obligation to request that the
            Master Servicer make Servicing Advances,

                  (E) the right of the Master Servicer (or any Affiliate
            thereof) or the 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, or

                  (F) any obligation of the Master Servicer or any of its
            Affiliates (in the capacity as a Mortgage Loan Seller) to cure a
            breach of a representation or warranty or repurchase any Trust
            Mortgage Loan.

      (the foregoing, the "Servicing Standard").

            Without limiting the foregoing, subject to Section 3.21, the Special
Servicer shall be obligated to service and administer (i) any Trust Mortgage
Loans as to which a Servicing Transfer Event has occurred and is continuing (the
"Specially Serviced Trust Mortgage Loans"), together with any related B Loans
that are being serviced hereunder (collectively with the Specially Serviced
Trust Mortgage Loans, the "Specially Serviced Mortgage Loans"), and (ii) any REO
Properties. Notwithstanding the foregoing, the Master Servicer shall continue to
make all calculations, and prepare, and deliver to the Trustee, all reports
required to be prepared by the Master Servicer hereunder with respect to the
Specially Serviced Trust Mortgage Loans as if no Servicing Transfer Event had
occurred and with respect to the REO Properties (and the related REO Trust
Mortgage Loans) as if no REO Acquisition had occurred, and to render such
incidental services with respect to the Specially Serviced Mortgage Loans and
REO Properties as are specifically provided for herein; provided, however, that
the Master Servicer shall not be liable for failure to comply with such duties
insofar as such failure results from a failure of the Special Servicer to
provide sufficient information to the Master Servicer to comply with such duties
or a failure of the Special Servicer to prepare and deliver to the Master
Servicer reports required hereunder to be delivered by the Special Servicer to
the Master Servicer. Each Trust Mortgage Loan that becomes a Specially Serviced
Trust Mortgage Loan shall continue as such until all Servicing Transfer Events
have ceased to exist with respect to such Trust Mortgage Loan as described in
the definition of "Servicing Transfer Event". A B Loan shall cease to be a
Specially Serviced Mortgage Loan at such time as the related Trust Mortgage Loan
ceases to be a Specially Serviced Trust Mortgage Loan as described in the
definition of "Servicing Transfer Event". Without limiting the foregoing,
subject to Section 3.21, the Master Servicer shall be obligated to service and
administer all Mortgage Loans which are not Specially Serviced Mortgage Loans;
provided, however, that the Special Servicer shall have the exclusive right to
approve any draw down of funds under any Letter of Credit provided by the
related Borrower with respect to any Trust Mortgage Loan, and to approve any
modification, amendment, alteration or renewal of such Letter of Credit, it
being agreed, however, that the Master Servicer shall provide the Special
Servicer with notice of any communication with respect to a Borrower's inability
to renew any such Letter of Credit.

            (b) Subject only to the Servicing Standard and the terms of this
Agreement and of the respective Mortgage Loans, the Master Servicer and, with
respect to the Specially Serviced Mortgage Loans and REO Mortgage Loans, the
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, the Master Servicer and Special Servicer, each in
its own name, is hereby authorized and empowered by the Trustee and obligated to
execute and deliver, on behalf of the Certificateholders, any affected B Loan
Holder and the Trustee or any of them, with respect to each Mortgage Loan it is
obligated to service under this Agreement, any and all 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 furnish, or cause to be furnished, to the Master
Servicer and Special Servicer any limited powers of attorney and 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
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 the
Master Servicer or Special Servicer.

            (c) The relationship of the Master Servicer and Special Servicer to
the Trustee 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.

            (d) In the event that there shall occur a CBA A/B Material Default
with respect to any CBA A/B Mortgage Loan Combination, and for so long as such
CBA A/B Material Default shall be continuing, the Master Servicer and/or the
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 B Loan Holder, and all references herein to
"Mortgage Loan" (and, if the related CBA A Loan is a Specially Serviced Trust
Mortgage Loan, all references herein to "Specially Serviced Mortgage Loan")
shall include a CBA B Loan that is being serviced under this Agreement.

            (e) Pursuant to the related Intercreditor Agreement, each Junior
Loan Holder has agreed that the Master Servicer and the Special Servicer are
authorized and obligated to service and administer the subject Junior Loan
pursuant to this Agreement. Subject to the consultation and approval rights of
the Series 2005-C1 Directing Certificateholder under this Agreement, the Master
Servicer (or the Special Servicer if required or permitted pursuant to, and in
accordance with, the terms of this Agreement) shall be entitled, during any
period when any Junior Loan that is being serviced under this Agreement does not
constitute a Specially Serviced Mortgage Loan, to exercise the rights and powers
granted under the corresponding Intercreditor Agreement(s) to the holder of the
applicable Trust Mortgage 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.

            Section 3.02 Collection of Mortgage Loan Payments

            (a) The Master Servicer and Special Servicer shall make reasonable
efforts to collect all payments called for under the terms and provisions of the
Mortgage Loans 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 Master
Servicer or Special Servicer may in its discretion waive any Penalty Charge in
connection with any delinquent payment on a Mortgage Loan it is obligated to
service hereunder.

            (b) If the Master Servicer or Special Servicer receives, or receives
notice from the related Borrower that it will be receiving, Excess Interest on
any ARD Trust Mortgage Loan in any Collection Period, the Master Servicer or
Special Servicer, as applicable, shall, to the extent Excess Interest is not
otherwise reported on the CMSA Loan Periodic Update File, promptly notify the
Trustee in writing.

            (c) The Master Servicer shall not accept a Principal Prepayment of
any Trust Mortgage 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 Mortgage Loan Documents. If the Master Servicer accepts a
Principal Prepayment of any Trust Mortgage Loan by the Borrower on any date
other than a Due Date which causes a Prepayment Interest Shortfall (unless such
Principal Prepayment is in respect of (i) a Specially Serviced Trust Mortgage
Loan (provided the Special Servicer consents to such prepayment), (ii) a payment
of Insurance and Condemnation Proceeds, (iii) a payment subsequent to a default
under the related Mortgage Loan Documents (provided the Master Servicer
reasonably believes that acceptance of such payment is consistent with the
Servicing Standard and the Master Servicer has obtained the consent of the
Special Servicer which shall not be unreasonably withheld or delayed and in any
event shall be deemed granted if not denied within five Business Days), (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 Mortgage Loan
Documents (without any discretion on the part of the lender) (provided this
clause (v) shall not apply to the Trust Mortgage Loans related to the Mortgaged
Properties identified on the Trust Mortgage Loan Schedule as The Mall at Yuba
City or Jenkintown Plaza) or (vi) a payment accepted by the Master Servicer at
the request of or with the consent of the Series 2005-C1 Directing
Certificateholder), the Master Servicer shall remit to the Trustee on or before
1:00 p.m., New York City time, on the related Master Servicer Remittance Date
for deposit in the Distribution Account, immediately available funds in an
amount equal to any Prepayment Interest Shortfall resulting from such Principal
Prepayment (which remittance shall fully cure any breach under this Section
3.02(c)).

            Section 3.03 Collection of Taxes, Assessments and Similar Items;
Servicing Accounts

            (a) The Master Servicer shall establish and maintain one or more
accounts (the "Servicing Accounts"), into which all Escrow Payments shall be
deposited and retained, and shall administer such Servicing Accounts in
accordance with the related Mortgage Loan Documents. Each Servicing Account
shall be maintained in accordance with the requirements of the related Mortgage
Loan and in accordance with the Servicing Standard and to the extent not
inconsistent with the terms of the Mortgage Loans, 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. As and to the extent consistent
with the Servicing Standard, applicable law and the related Mortgage Loan
Documents, the Master Servicer may make withdrawals from the Servicing Accounts
maintained by it, and may apply Escrow Payments held therein with respect to any
Mortgage Loan (together with interest earned thereon), only as follows: (i) to
effect the payment of real estate taxes, assessments, insurance premiums
(including, premiums on any Environmental Insurance Policy), ground rents (if
applicable) and comparable items in respect of the related Mortgaged Property;
(ii) to reimburse the Master Servicer, the Special Servicer or the Trustee, as
applicable, for any unreimbursed Servicing Advances made thereby (together with
Advance Interest accrued thereon) with respect to such Mortgage Loan to cover
any of the items described in the immediately preceding clause (i); (iii) to
refund to the related Borrower any sums as may be determined to be overages;
(iv) to pay interest or other income, if required and as described below, to the
related Borrower on balances in the Servicing Account (or, if and to the extent
not payable to the related Borrower, to pay such interest or other income (up to
the amount of any Net Investment Earnings in respect of such Servicing Account
for each Collection Period) to such Master Servicer); (v) after an event of
default, to pay the principal of, accrued interest on and any other amounts
payable with respect to such Mortgage Loan; or (vi) to clear and terminate the
Servicing Account at the termination of this Agreement in accordance with
Section 9.01. The Master Servicer shall pay or cause to be paid to the related
Borrowers interest and other income, if any, earned on the investment of funds
in Servicing Accounts maintained thereby, if and to the extent required by law
or the terms of the related Mortgage Loan Documents. If the Master Servicer
shall deposit in a Servicing Account maintained by it any amount not required to
be deposited therein, it may at any time withdraw such amount from such
Servicing Account, any provision herein to the contrary notwithstanding.
Promptly after any Escrow Payments are received by the Special Servicer from any
Borrower, and in any event within two Business Days after any such receipt, the
Special Servicer shall remit such Escrow Payments to the applicable Master
Servicer for deposit in the applicable Servicing Account(s).

            (b) The Special Servicer, in the case of REO Properties, and the
Master Servicer, in the case of all Mortgage 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
Special Servicer, in the case of REO Properties, and the Master Servicer, in the
case of all Mortgage Loans, shall obtain all bills for the payment of such items
(including renewal premiums) and shall effect payment thereof from the REO
Account or the Servicing Accounts, as applicable, and, if such amounts are
insufficient to pay such items in full, the Master Servicer shall (subject to
Section 3.04(c)) make a Servicing Advance prior to the applicable penalty or
termination date, as allowed under the terms of the related Mortgage Loan and,
in any event, consistent with the Servicing Standard. Notwithstanding anything
to the contrary in the preceding sentence, with respect to Mortgage Loans that
do not provide for escrows for the payment of taxes and assessments, the Master
Servicer shall (subject to Section 3.04(c)) make a Servicing Advance for the
payment of such items upon the earlier of (i) five Business Days after the
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) if applicable, five Business Days before the scheduled date of
foreclosure of any lien arising from nonpayment of such items. In no event shall
the 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 Mortgage Loan 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 Master Servicer and Special
Servicer, as applicable, 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 Mortgage
Loans and REO Properties, the Master Servicer shall make a Servicing Advance
with respect to each related Mortgaged Property and each 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 and (vi) 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 the Master Servicer shall not be required to make any such advance
that would, if made, constitute a Nonrecoverable Servicing Advance.

            The Special Servicer shall give the Master Servicer and the Trustee
not less than five Business Days' written notice before the date on which the
Master Servicer is required to make any Servicing Advance with respect to any
Mortgage Loan that the Special Servicer is required to service or any 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 (the Special Servicer to identify any such urgent or emergency
basis to the Master Servicer at the time it notifies the Master Servicer of the
need to make the Advance); and provided, further, that the Special Servicer
shall not be entitled to make such a request (other than for Servicing Advances
required to be made on an urgent or emergency basis) more frequently than once
per calendar month (although such request may relate to more than one Servicing
Advance). The Master Servicer may pay the aggregate amount of such Servicing
Advances listed on a monthly request to the Special Servicer, in which case the
Special Servicer shall remit such Servicing Advances to the ultimate payees. In
addition, the Special Servicer shall provide the Master Servicer and the Trustee
with such information in its possession as the Master Servicer or the Trustee,
as applicable, may reasonably request to enable the Master Servicer or the
Trustee, as applicable, to determine whether a requested Servicing Advance would
constitute a Nonrecoverable Servicing Advance. Any request by the Special
Servicer that the Master Servicer make a Servicing Advance shall be deemed to be
a determination by the Special Servicer that such requested Servicing Advance is
not a Nonrecoverable Servicing Advance, and the Master Servicer shall be
entitled to conclusively rely on such determination; provided that such
determination shall not be binding upon the Master Servicer. On the fourth
Business Day before each Distribution Date, the Special Servicer shall report to
the Master Servicer the Special Servicer's determination as to whether any
Servicing Advance previously made with respect to a Specially Serviced Mortgage
Loan or REO Property is a Nonrecoverable Servicing Advance. The Master Servicer
shall be entitled to conclusively rely on such a determination; provided that
such determination shall be binding upon the Master Servicer if the Special
Servicer determines that such Servicing Advance is a Nonrecoverable Servicing
Advance. The Master Servicer shall not be responsible for any delay on the part
of the Special Servicer to notify the Master Servicer of any required Servicing
Advance with respect to a Specially Serviced Mortgage Loan or REO Property.

            Notwithstanding anything to the contrary set forth herein, the
Master Servicer may (or, at the direction of the Special Servicer, upon not less
than five Business Days' (or, if payment is required to be made on an urgent or
emergency basis as indicated by the Special Servicer, two Business Days') prior
written notice if a Specially Serviced Mortgage Loan or REO Property is
involved, shall) pay directly out of the Collection Account any servicing
expense that, if paid by the Master Servicer or the Special Servicer, would
constitute a Nonrecoverable Servicing Advance; provided that such payment shall
be made only if the Master Servicer (or the Special Servicer, if a Specially
Serviced Mortgage Loan or REO Property is involved) has determined in accordance
with the Servicing Standard that making such payment is in the best interests of
the Certificateholders (or, in the case of a Mortgage Loan Combination, the
Certificateholders and the related B Loan Holder) (as a collective whole), as
evidenced by an Officer's Certificate promptly delivered by the Master Servicer
or the Special Servicer, as applicable, to the Trustee, the Master Servicer or
the Special Servicer, as applicable, the Depositor, each Rating Agency, the
Series 2005-C1 Directing Certificateholder, any Requesting Subordinate
Certificateholder and any affected B Loan Holder, setting forth the basis for
such determination and accompanied by any information that the Master Servicer
or the Special Servicer may have obtained that supports such determination; and
provided, further, that, if a Mortgage Loan Combination is involved, and if and
to the extent that funds are available in the related Mortgage Loan Combination
Custodial Account, such payment shall be made from such related Mortgage Loan
Combination Custodial Account.

            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 Sections 3.04 and 3.05. No costs incurred by the
Master Servicer or 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
Trust Mortgage Loans, notwithstanding that the terms of such Trust Mortgage
Loans so permit.

            If the Master Servicer is required under any provision of this
Agreement to make a Servicing Advance, but it does not do so when such Advance
is required to be made, the Trustee shall, if it has actual knowledge of such
failure on the part of the Master Servicer, give written notice of such failure
to the Master Servicer. If such Servicing Advance is not made by the Master
Servicer within three Business Days after such notice is given to the Master
Servicer, then (subject to Section 7.05) the Trustee shall, within one Business
Day thereafter, make such Servicing Advance.

            (d) In connection with its recovery of any Servicing Advance out of
the Collection Account pursuant to clauses (v) or (vi) of Section 3.05(a), from
a Mortgage Loan Combination Custodial Account pursuant to Section 3.04 or from a
Servicing Account pursuant to Section 3.03(a)(ii), the Master Servicer, the
Special Servicer and the Trustee shall each be entitled to receive, first out of
any Penalty Charges with respect to the related Mortgage Loan or REO Mortgage
Loan, and then out of any other amounts then on deposit in the 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; provided that any such interest with
respect to any Servicing Advances made or deemed made with respect to any
related B Loan or any successor REO B Loan with respect thereto that is not so
payable out of related Penalty Charges, shall be payable, after such Servicing
Advance is reimbursed, out of any other collections on such Mortgage Loan or REO
Mortgage Loan, as the case may be, on deposit in the Mortgage Loan Combination
Custodial Account (but in no event out of the Trust Fund) (except that this
provision is in no way intended to limit any rights that the Master Servicer,
the Special Servicer or the Trustee may have to receive payment for such
interest on such Servicing Advances from the related B Loan Holder under the
related Intercreditor Agreement); and provided, further, that any such interest
earned on any Servicing Advances made with respect to either Mortgage Loan of a
Mortgage Loan Combination or with respect to any REO Property related to a
Mortgage Loan Combination shall be payable out of the related Mortgage Loan
Combination Custodial Account, to the maximum extent permitted by the related
Intercreditor Agreement, before being paid out of general collections on the
Mortgage Pool on deposit in the Collection Account; and provided, further, that
the Master Servicer shall not be entitled to interest on any Servicing Advance
made thereby to the extent a payment that may be applied to reimburse such
Servicing advance is received but is being held by or on behalf of the Master
Servicer in suspense. The Master Servicer shall reimburse itself, the Special
Servicer or the Trustee, as the case may be, for any outstanding Servicing
Advance made by the Master Servicer, the Special Servicer or the Trustee as soon
as practically possible after funds available for such purpose are deposited in
the Collection Account or, if applicable, the related Mortgage Loan Combination
Custodial Account; provided that, upon a determination that a previously made
Servicing Advance is a Nonrecoverable Servicing Advance with respect to any
Trust Mortgage Loan or REO Trust Mortgage Loan the Master Servicer may reimburse
itself, the Special Servicer or the Trustee, as applicable, immediately from
general collections in the Collection Account. Notwithstanding the foregoing,
instead of obtaining reimbursement out of general collections on the Mortgage
Pool immediately, the Master Servicer, the Special Servicer or the Trustee, as
applicable, may, in its sole discretion, elect to obtain reimbursement for such
Nonrecoverable Servicing Advance over a period of time (not to exceed 12
months), with interest thereon at the Reimbursement Rate (except that at any
time after such a determination to obtain reimbursement over time in accordance
with this proviso, the Master Servicer, the Special Servicer or the Trustee, as
applicable, may, in its sole discretion, decide to obtain reimbursement from
general collections on the Mortgage Pool immediately). The fact that a decision
to recover any Nonrecoverable Servicing Advance over time, or not to do so,
benefits some Classes of Certificateholders to the detriment of other Classes
shall not constitute a violation of the Servicing Standard by the Master
Servicer or the Special Servicer or a breach of any fiduciary duty owed to the
Certificateholders by the Trustee, or a breach of any other contractual
obligation owed to the Certificateholders by any party to this Agreement.

            (e) To the extent an operations and maintenance plan is required to
be established and executed pursuant to the terms of a Trust Mortgage Loan, the
Master Servicer or, with respect to Specially Serviced Trust Mortgage Loans, the
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 the Trust Mortgage Loan, the Master
Servicer or, with respect to Specially Serviced Trust Mortgage Loans, the
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 Master Servicer
(with respect to Trust Mortgage Loans that are not Specially Serviced Trust
Mortgage Loans) shall determine whether the related Borrower has failed to
perform its obligations under the subject Trust Mortgage Loan and report any
such failure to the 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 Account, Distribution Account, Grantor
Trust Distribution Account, Excess Liquidation Proceeds Account and Mortgage
Loan Combination Custodial Accounts

            (a) The Master Servicer shall establish and maintain, or cause to be
established and maintained, the Collection Account, into which the Master
Servicer shall deposit or cause to be deposited on a daily basis (and, subject
to Section 3.04(e), in no event later than the Business Day following receipt of
available funds), except as otherwise specifically provided herein, the
following payments and collections received after the Cut-off Date (other than
payments of principal and interest on the Trust Mortgage Loans due and payable
on or before the Cut-off Date, and other than payments deposited into the
Mortgage Loan Combination Custodial Account pursuant to Section 3.04(e)) and
payments (other than Principal Prepayments) received by it on or prior to the
Cut-off Date but allocable to a period subsequent thereto:

            (i) all payments (from whatever source) on account of principal,
      including Principal Prepayments, on the Trust Mortgage Loans (including
      from a debt service reserve account or any party exercising cure rights);
      and

            (ii) all payments (from whatever source) on account of interest,
      including Default Interest and Excess Interest, Yield Maintenance Charges
      and late payment charges on the Trust Mortgage Loans (including from a
      debt service reserve account or any party exercising cure rights); and

            (iii) all Insurance and Condemnation Proceeds and Liquidation
      Proceeds received in respect of any Trust Mortgage Loan (other than
      Liquidation Proceeds that are to be deposited in the Distribution Account
      or the Grantor Trust Distribution Account) together with any amounts
      representing recoveries of Workout-Delayed Reimbursement Amounts or
      Nonrecoverable Advances in respect of the related Trust Mortgage Loans;
      and

            (iv) any amounts required to be transferred to the Collection
      Account from the REO Account pursuant to Section 3.16(c) or from a
      Mortgage Loan Combination Custodial Account pursuant to Section 3.04(e);
      and

            (v) 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 the Collection Account; and

            (vi) any amounts required to be deposited by the Master Servicer or
      the Special Servicer pursuant to Section 3.07(b) in connection with losses
      resulting from a deductible clause in a blanket hazard policy or master
      single interest policy; and

            (vii) any amounts paid by any Junior Loan Holder or Mezzanine Loan
      Holder 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, or paid or reimbursed from the related Mortgage
      Loan Combination Custodial Account or by such Junior Loan Holder pursuant
      to Section 3.05.

            The foregoing requirements for deposit by the Master Servicer in the
Collection Account 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 the Master Servicer or the Special Servicer is entitled to
retain as additional servicing compensation pursuant to Section 3.11 need not be
deposited by the Master Servicer in the Collection Account. If the Master
Servicer shall deposit in the Collection Account any amount not required to be
deposited therein, then (notwithstanding anything herein to the contrary) it may
at any time withdraw such amount from the Collection Account.

            Within one Business Day of receipt of any of the amounts described
in clauses (i)-(iii) of the second preceding paragraph with respect to any
Specially Serviced Trust Mortgage Loan, the Special Servicer shall remit such
amounts to the Master Servicer for deposit into the Collection Account in
accordance with the second preceding paragraph (or, if such Specially Serviced
Trust Mortgage Loan is part of a Mortgage Loan Combination, into the related
Mortgage Loan Combination Custodial Account in accordance with Section 3.04(e)).
Any amounts received by the Special Servicer with respect to an REO Property
shall be deposited into the REO Account and remitted to the Master Servicer for
deposit into the Collection Account (or, if such REO Property relates to a
Mortgage Loan Combination, into the related Mortgage Loan Combination Custodial
Account) pursuant to Section 3.16(c).

            (b) The Trustee shall establish and maintain the Distribution
Account in trust for the benefit of the Certificateholders. The Trustee shall
make deposits in and withdrawals from the Distribution Account in accordance
with the terms of this Agreement. The Master Servicer shall deliver to the
Trustee 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)(iv), (a)(vii), (d), (e), (f) and (g) of the definition thereof) for the
related Distribution Date then on deposit in the Collection Account maintained
by the Master Servicer. Amounts deposited in respect of the JFK Medical Pavilion
II Loan shall be deemed to be distributed in respect of the JFK Medical Pavilion
II Loan REMIC Regular Interest and the JFK Medical Pavilion II Loan REMIC
Residual Interest in accordance with the REMIC Declaration.

            Subject to Section 3.05, the Master Servicer shall, as and when
required hereunder, deliver to the Trustee for deposit in the Distribution
Account:

            (i) any P&I Advances required to be made by the Master Servicer in
      accordance with Section 4.03 (or, if the Trustee succeeds to the Master
      Servicer's obligations hereunder, Section 7.05) with respect to the
      Mortgage Pool;

            (ii) any Liquidation Proceeds paid by the Master Servicer in
      connection with the purchase of all of the Trust Mortgage Loans and the
      Trust's interest in any REO Properties in the Trust Fund pursuant to
      Section 9.01 (exclusive of that portion thereof required to be deposited
      in the Collection Account or the Grantor Trust Distribution Account, or
      remitted to a B Loan Holder, pursuant to Section 9.01);

            (iii) any Yield Maintenance Charges on the Trust Mortgage Loans and
      REO Trust Mortgage Loans;

            (iv) any payments required to be made by the Master Servicer
      pursuant to Section 3.02(c); and

            (v) any other amounts required to be so delivered by the Master
      Servicer for deposit in the Distribution Account pursuant to any provision
      of this Agreement.

            The Trustee shall, upon receipt, deposit in the Distribution Account
any and all amounts received by the Trustee 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)) and
any amounts required to be deposited by the Trustee pursuant to Section 3.06 in
connection with losses incurred with respect to Permitted Investments of funds
held in the Distribution Account.

            (c) The Trustee shall establish and maintain the Grantor Trust
Distribution Account in the name of the Trustee for the benefit of the Holders
of the Class V and Class LR Certificates. The Grantor Trust Distribution Account
shall be established and maintained as an Eligible Account or, subject to
Section 3.04(h), a subaccount of an Eligible Account. On or before each Master
Servicer Remittance Date, the Master Servicer shall remit to the Trustee for
deposit in the Grantor Trust Distribution Account (i) an amount equal to the
Excess Interest received on the respective ARD Trust Mortgage Loans (or any
successor REO Trust Mortgage Loans with respect thereto) during the related
Collection Period and (ii) any amounts received in respect of the JFK Medical
Pavilion II Loan REMIC Residual Interest. On each Distribution Date, the Trustee
shall withdraw the Excess Interest on deposit therein from the Grantor Trust
Distribution Account for distribution pursuant to Section 4.01(e). On each
Distribution Date, the Trustee shall deposit any Net Investment Loss into the
Grantor Trust Distribution Account and shall be permitted to withdraw any Net
Investment Earnings from the Grantor Trust Distribution Account. Following the
later of (i) the distribution of Excess Interest to Holders of the Class V
Certificates on the first Distribution Date after which no ARD Trust Mortgage
Loan and no successor REO Trust Mortgage Loan with respect to an ARD Trust
Mortgage Loan remains part of the Mortgage Pool and (ii) the final distribution
on the JFK Medical Pavilion II Loan REMIC Residual Interest, the Trustee shall
terminate the Grantor Trust Distribution Account.

            (d) If any Excess Liquidation Proceeds are received, the Trustee
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 and, subject to Section 3.04(h),
may be a sub-account of the same Eligible Account as the Distribution Account.
By 1:00 p.m., New York City time, on each Master Servicer Remittance Date, the
Master Servicer shall withdraw from the Collection Account and remit to the
Trustee for deposit in the Excess Liquidation Proceeds Account all Excess
Liquidation Proceeds received during the Collection Period ending on the
Determination Date immediately prior to such Master Servicer Remittance Date. If
any Excess Liquidation Proceeds received by the Master Servicer during any
Collection Period relate to any Junior Loan, such amount shall be deposited in
the applicable Mortgage Loan Combination Custodial Account. Any Excess
Liquidation Proceeds with respect to the JFK Medical Pavilion II Loan shall be
deemed to have been distributed to the Class LR Certificates in respect of the
JFK Medical Pavilion II Loan REMIC Residual Interest, and then deposited into
the Excess Liquidation Proceeds Account in the Lower Tier REMIC.

            On the Business Day prior to each Distribution Date, the Trustee
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 on such
Distribution Date pursuant to Sections 4.01(a) and 4.01(b), 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 Trustee 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. On the Business Day prior to each Distribution Date, the Trustee shall
deposit any Net Investment Loss into the Excess Liquidation Proceeds Account and
shall be permitted to withdraw any Net Investment Earnings from the Excess
Liquidation Proceeds Account.

            (e) 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 Mortgage Loan Combination (and, as a result, such CBA B Loan is
being serviced hereunder), or if the Mortgaged Property securing the subject CBA
A/B Mortgage Loan Combination has become an REO Property, the Master Servicer
shall establish and maintain, or cause to be established and maintained, a
Mortgage Loan Combination Custodial Account, into which the Master Servicer
shall promptly deposit or cause to be deposited (in no event later than the
Business Day following the receipt of available funds) (or shall transfer from
collections with respect to the related Mortgage Loan Combination on deposit in
the Collection Account maintained by the Master Servicer if any such amounts
were deposited in such account in error), except as otherwise specifically
provided herein, the following payments and collections on the applicable
Mortgage Loan Combination 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 (other than Principal Prepayments) received
on the applicable Mortgage Loan Combination by the Master Servicer on or prior
to the Cut-off Date but allocable to a period subsequent thereto:

            (i) all payments or transfers (from whatever source) on account of
      principal, including Principal Prepayments, on such Mortgage Loan
      Combination (including from a debt service reserve account or any party
      exercising cure rights); and

            (ii) all payments (from whatever source) on account of interest,
      including Default Interest and Excess Interest, Yield Maintenance Charges
      and late payment charges on such Mortgage Loan Combination (including from
      a debt service reserve account or any party exercising cure rights); and

            (iii) all Insurance and Condemnation Proceeds received in respect of
      such Mortgage Loan Combination; and

            (iv) all Liquidation Proceeds of the type described in clauses (i)
      and (ii) of the definition of Liquidation Proceeds; and

            (v) any amounts required to be transferred to such Mortgage Loan
      Combination Custodial Account from the REO Account pursuant to Section
      3.16(c);

            (vi) 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 Mortgage Loan Combination
      Custodial Account; and

            (vii) any amounts required to be deposited by the Master Servicer or
      the Special Servicer pursuant to Section 3.07(b) in connection with losses
      on such Mortgage Loan Combination resulting from a deductible clause in a
      blanket hazard policy or master single interest policy; and

            (viii) any amounts paid by the holder of any A Loan or any Mezzanine
      Loan Holder in connection with any purchase option exercised pursuant to
      the terms of the related Intercreditor Agreement, that are distributable
      to the related Junior Loan Holder.

            The foregoing requirements for deposit by the Master Servicer in a
Mortgage Loan Combination 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 the Master Servicer or the
Special Servicer is entitled to retain as additional servicing compensation
pursuant to Section 3.11 need not be deposited by the Master Servicer in such
Mortgage Loan Combination Custodial Account. If the Master Servicer shall
deposit in any Mortgage Loan Combination Custodial Account any amount not
required to be deposited therein, then (notwithstanding anything herein to the
contrary) it may at any time withdraw such amount from such Mortgage Loan
Combination Custodial Account.

            Within one Business Day of receipt of any of the amounts described
in clauses (i)-(iv) of the second preceding paragraph with respect to any
Specially Serviced Mortgage Loan that is part of a Mortgage Loan Combination
during the period that the related B Loan is being serviced hereunder, the
Special Servicer shall remit such amounts to the Master Servicer for deposit in
the related Mortgage Loan Combination Custodial Account pursuant to the second
preceding paragraph. Any amounts received by the Special Servicer with respect
to an REO Property that relates to a Mortgage Loan Combination shall be
deposited into the REO Account and remitted to the Master Servicer for deposit
into the related Mortgage Loan Combination Custodial Account pursuant to Section
3.16(c).

            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 Mortgage Loan Combination (and, as a result, such CBA B Loan is
being serviced hereunder), or if the Mortgaged Property securing the subject CBA
A/B Mortgage Loan Combination has become an REO Property, the Master Servicer
shall, as and when required pursuant to the related Intercreditor Agreement and
Section 3.05(a) (and in any event no later than the Master Servicer Remittance
Date), withdraw from the related Mortgage Loan Combination 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
Master Servicing Fees, Special Servicing Fees, Workout Fees and Liquidation Fees
and the payment of any other servicing expenses and fees relating to the subject
Mortgage Loan Combination or any related REO Property and, further, pay to the
Trust, as "A Note Holder" under the related Intercreditor Agreement, and to the
B Loan Holder all amounts to which each of them is entitled in respect of the
subject A Loan and B 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 B Loan Holder shall be made in accordance with the
related Intercreditor Agreement.

            The Master Servicer may pay itself monthly any Net Investment
Earnings with respect to a Mortgage Loan Combination Custodial Account.

            (f) [Reserved]

            (g) Funds on deposit in the Collection Account and any Mortgage Loan
Combination Custodial Account may be invested only in Permitted Investments in
accordance with the provisions of Section 3.06. Funds on deposit in the
Distribution Account, the Grantor Trust Distribution Account and the Excess
Liquidation Proceeds Account may be invested only in Permitted Investments in
accordance with the provisions of Section 3.06. The Master Servicer shall give
notice to the Trustee, the Special Servicer, the Rating Agencies and the
Depositor of the location of the Collection Account and any Mortgage Loan
Combination Custodial Account 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 Trustee. The Trustee
shall give notice to the Master Servicer 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.

            (h) Notwithstanding the foregoing or any other provision to the
contrary in this Agreement, the Master Servicer may maintain the Collection
Account and the respective Mortgage Loan Combination Custodial Accounts 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
made in the same manner as would be the case if the Collection Account and the
respective Mortgage Loan Combination Custodial Accounts 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 the Collection
Account and the respective Mortgage Loan Combination Custodial Accounts were
maintained as multiple separate accounts; (iii) the 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 Account and the respective Mortgage Loan Combination
Custodial Accounts, respectively; (iv) the Master Servicer's maintaining the
Collection Account and the respective Mortgage Loan Combination 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 or any B Loan
Holder; and (v) such single Eligible Account shall be entitled substantially as
follows: "GMAC Commercial Mortgage Corporation [or the name of any successor
Master Servicer], as Master Servicer, in trust for Wells Fargo Bank, N.A. [or
the name of any successor Trustee], as Trustee, on behalf of Holders of Credit
Suisse First Boston Mortgage Securities Corp., Commercial Mortgage Pass-Through
Certificates, Series 2005-C1, and the respective B Loan Holders, as their
interests may appear, Collection/Custodial Account".

            Also notwithstanding the foregoing or any other provision to the
contrary in this Agreement, the Trustee may maintain the REMIC I Distribution
Account, the REMIC II Distribution Account, the Grantor Trust Distribution
Account, the Interest Reserve Account and the Excess Liquidation Proceeds
Account as five 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 REMIC I
Distribution Account, the REMIC II Distribution Account, the Grantor Trust
Distribution Account, the Interest Reserve Account and the Excess Liquidation
Proceeds Account were maintained as five separate accounts; (ii) all
distributions on the Certificates will be calculated and made in the same manner
as would be the case if the REMIC I Distribution Account, the REMIC II
Distribution Account, the Grantor Trust Distribution Account, the Interest
Reserve Account and the Excess Liquidation Proceeds Account were maintained as
five separate accounts; (iii) the Trustee 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 REMIC I Distribution Account, the REMIC
II Distribution Account, the Grantor Trust Distribution Account, the Interest
Reserve Account and the Excess Liquidation Proceeds Account, as the case may be;
(iv) the Trustee's maintaining the REMIC I Distribution Account, the REMIC II
Distribution Account, the Grantor Trust Distribution Account, the Interest
Reserve Account and the Excess Liquidation Proceeds Account as five 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
"Wells Fargo Bank, N.A., as Trustee, in trust for the registered holders of
Credit Suisse First Boston Mortgage Securities Corp., Commercial Mortgage
Pass-Through Certificates, Series 2005-C1, REMIC I Distribution Account, REMIC
II Distribution Account, Grantor Trust Distribution Account, Interest Reserve
Account and Excess Liquidation Proceeds Account".

            Section 3.05 Permitted Withdrawals from the Collection Account and
the Distribution Account

            (a) Subject to the provisions of this Section 3.05(a), the Master
Servicer may, from time to time, make withdrawals from the Collection Account
maintained by it 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 Trustee for deposit in the Distribution Account
      the amount required to be remitted pursuant to the first paragraph of
      Section 3.04(b) and clause (iii) of the second paragraph of Section
      3.04(b) and the amount to be applied to make P&I Advances by the Master
      Servicer pursuant to Section 4.03(a);

            (ii) to remit to the Trustee for deposit in the Excess Distribution
      Account any Excess Interest on the ARD Trust Mortgage Loans and any
      successor REO Trust Mortgage Loans with respect thereto pursuant to
      Section 3.04(c);

            (iii) to pay (x) to itself unpaid Master Servicing Fees to which it
      is entitled pursuant to Section 3.11(a) in respect of each Mortgage Loan
      and REO Mortgage Loan, and (y) to the Special Servicer, unpaid Special
      Servicing Fees to which it is entitled in accordance with Section 3.11(b)
      in respect of each Specially Serviced Trust Mortgage Loan, REO Trust
      Mortgage Loan and, to the extent set forth in the related Intercreditor
      Agreement, each B Loan, as applicable, the Master Servicer's rights and
      the Special Servicer's rights to payment pursuant to this clause (iii)
      with respect to any Trust Mortgage Loan, REO Trust Mortgage Loan or B
      Loan, as applicable, being limited to amounts received on or in respect of
      such Trust Mortgage Loan or B Loan (whether in the form of payments,
      Liquidation Proceeds or Insurance and Condemnation Proceeds), or such REO
      Trust Mortgage 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 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), the Master Servicer's
      or the Trustee's right to receive payment pursuant to this clause (iv)
      being limited to amounts received which represent Late Collections of
      interest (net of the related Master Servicing Fees) on and principal of
      the particular Trust Mortgage Loans and REO Trust Mortgage Loans with
      respect to which such P&I Advances were made; provided, however, that if
      such P&I Advance becomes a Workout-Delayed Reimbursement Amount, then such
      P&I Advance shall thereafter be reimbursed from the portion of general
      collections and recoveries on or in respect of the Trust Mortgage Loans
      and REO Properties on deposit in the Collection Account from time to time
      that represent collections or recoveries of principal to the extent
      provided in clause (vi) below;

            (v) to reimburse itself, the Special Servicer or the Trustee, as
      applicable, for unreimbursed Servicing Advances, the Master Servicer's,
      the Special Servicer's or the Trustee's respective rights to receive
      payment pursuant to this clause (v) with respect to any Mortgage Loan or
      REO Property being limited to, as applicable, related payments,
      Liquidation Proceeds, Insurance and Condemnation Proceeds and REO
      Revenues); provided, however, that if such Servicing Advance becomes a
      Workout-Delayed Reimbursement Amount, then such Servicing Advance shall
      thereafter be reimbursed from the portion of general collections and
      recoveries on or in respect of the Mortgage Loans and REO Properties on
      deposit in the Collection Account from time to time that represent
      collections or recoveries of principal to the extent provided in clause
      (vi) below;

            (vi) to reimburse itself, the Special Servicer or the Trustee, as
      applicable, for (A) Nonrecoverable Advances out of the principal portion
      of general collections on the Mortgage Loans and REO Properties, and, to
      the extent the principal portion of general collections is insufficient
      and with respect to such excess only, subject to any exercise of the sole
      option of the Master Servicer, the Special Servicer or the Trustee to
      defer reimbursement thereof pursuant to Section 3.03(d) or 4.03(d), as
      applicable, out of other collections on the Mortgage Loans and REO
      Properties 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;

            (vii) at such time as it reimburses itself, the Special Servicer or
      the Trustee, as applicable, for (a) any unreimbursed P&I Advance pursuant
      to clause (iv) above (including, pursuant to clause (vi) above, any such
      P&I Advance that constitutes a Workout-Delayed Reimbursement Amount), to
      pay itself or the Trustee, as applicable, any Advance Interest accrued and
      payable thereon in accordance with Section 4.03(d), (b) any unreimbursed
      Servicing Advances pursuant to clause (v) above (including, pursuant to
      clause (vi) above, any such Servicing Advance that constitutes a
      Workout-Delayed Reimbursement Amount) or pursuant to Section 3.03(a)(ii),
      to pay itself, the Special Servicer or the Trustee, as the case may be,
      any Advance Interest accrued and payable thereon in accordance with
      Section 3.03(d) or (c) any Nonrecoverable Advances pursuant to clause (vi)
      above, to pay itself, the Special Servicer or the Trustee, as the case may
      be, any Advance Interest accrued and payable thereon (all such Advance
      Interest to be payable first out of Penalty Charges on the related
      Mortgage Loan or REO Mortgage Loan and then out of general collections on
      the Mortgage Loans and REO Properties; provided, that Advance Interest
      accrued and payable on any Workout-Delayed Reimbursement Amount as set
      forth in subclause (a) or (b) above shall be solely reimbursable from the
      principal portion of general collections);

            (viii) to pay the Special Servicer (or, if applicable, any
      predecessor thereto) earned and unpaid Workout Fees and Liquidation Fees
      with respect to any Specially Serviced Mortgage Loan or REO Mortgage Loan
      to which it is entitled pursuant to, and from the sources contemplated by,
      Section 3.11(b);

            (ix) to reimburse itself, the Special Servicer, the Depositor or the
      Trustee, as the case may be, for any unreimbursed expenses reasonably
      incurred by such Person in respect of any Breach or Defect relating to a
      Trust Mortgage Loan and giving rise to a repurchase obligation of any
      Mortgage Loan Seller under Section 7 of the related Mortgage Loan Purchase
      Agreement, including, 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 Trust Mortgage Loan being limited
      to that portion of the Purchase Price paid for such Trust Mortgage Loan
      that represents such expense in accordance with clause (v) of the
      definition of Purchase Price;

            (x) subject to Section 2.03(b), to reimburse itself, the Trustee or
      the Special Servicer, as the case may be, out of general collections on
      the Trust Mortgage Loans and REO Properties for any unreimbursed expense
      reasonably incurred by such Person relating to a Trust Mortgage Loan in
      connection with the enforcement of any Mortgage Loan Seller's obligations
      under Section 7 of the related Mortgage Loan Purchase Agreement, but only
      to the extent that such expenses are not reimbursable pursuant to clause
      (ix) above or otherwise;

            (xi) to pay itself, as additional master servicing compensation all
      amounts relating to the Mortgage Pool specified in the second and third
      paragraphs of Section 3.11(a); and to pay the Special Servicer, as
      additional special servicing compensation all amounts relating to the
      Mortgage Pool specified in the second to the last paragraph of Section
      3.11(b);

            (xii) to recoup any amounts deposited in the Collection Account
      maintained by the Master Servicer in error;

            (xiii) to pay itself, the Special Servicer, the Trustee, the
      Depositor or any of their respective affiliates, directors, officers,
      shareholders, members, managers, partners, employees and agents, as the
      case may be, any amounts payable to any such Person out of the Collection
      Account pursuant to Sections 6.03(a) or 6.03(b);

            (xiv) to pay for (A) the cost of any Opinion of Counsel contemplated
      by Sections 11.01(a) or 11.01(c) in connection with an amendment to this
      Agreement requested by the Trustee, the Special Servicer or the Master
      Servicer, which amendment is in furtherance of the rights and interests of
      Certificateholders, (B) the cost of obtaining the REO Extension
      contemplated by Section 3.16(a) (the amounts contemplated by this clause
      may be paid from the Collection Account), (C) any reasonable out-of-pocket
      cost or expense (including the reasonable fees of tax accountants and
      attorneys) incurred by the Trustee pursuant to Section 3.17(a)(iii) in
      connection with providing advice to the Special Servicer with respect to
      any REO Property (except to the extent that the subject expense relates to
      any B Loan or any successor REO B Loan with respect thereto), and (D) to
      the extent not otherwise advanced by the Master Servicer, any fees and/or
      expenses payable or reimbursable, as the case may be, in accordance with
      Section 3.18, to the Master Servicer, the Trustee or an Independent third
      party for confirming, in accordance with such Section 3.18(b), a Fair
      Value determination made with respect to any Defaulted Trust Mortgage
      Loan;

            (xv) to pay itself, the Special Servicer, the Trustee or the
      Depositor, as the case may be, any amount related to the Mortgage Loans
      and/or REO Properties that is specifically required to be paid to such
      Person at the expense of the Trust Fund under any provision of this
      Agreement and to which reference is not made in any other clause of this
      Section 3.05(a), it being acknowledged that this clause (xv) shall not be
      construed to modify any limitation otherwise set forth in this Agreement
      on the time at which any Person is entitled to payment or reimbursement of
      any amount or the funds from which any such payment or reimbursement is
      permitted to be made;

            (xvi) to pay, in accordance with Section 3.03(c), out of general
      collections on the Mortgage Loans and any REO Properties, certain
      servicing expenses related to the Mortgage Loans and REO Properties that
      would, if advanced, constitute Nonrecoverable Servicing Advances;

            (xvii) to pay itself, the Special Servicer, a Mortgage Loan Seller,
      any Junior Loan Holder or any other particular Person, as the case may be,
      with respect to each Mortgage Loan, if any, previously purchased by such
      Person pursuant to this Agreement, all amounts received thereon subsequent
      to the date of purchase;

            (xviii) to pay for the cost of any environmental testing performed
      at the Special Servicer's direction pursuant to the last sentence of
      Section 3.09(c) and to pay for the cost of any remedial actions taken in
      accordance with Section 3.09(c) to address actual or potential adverse
      environmental conditions;

            (xix) to transfer to the related Mortgage Loan Combination Custodial
      Account or pay any amounts payable by the holder of the related A Loan to
      any B Loan Holder under the related Intercreditor Agreement;

            (xx) to remit any Excess Liquidation Proceeds to the Trustee for
      deposit in the Excess Liquidation Proceeds Account in accordance with
      Section 3.04(d); and

            (xxi) to clear and terminate the Collection Account at the
      termination of this Agreement pursuant to Section 9.01;

provided, however, that, in the case of each CBA A/B Mortgage Loan Combination:

                  (A) to the maximum extent permitted by the related CBA A/B
            Intercreditor Agreement, Special Servicing Fees, Workout Fees,
            Liquidation Fees, and all other servicing costs and expenses
            relating to such CBA A/B Mortgage Loan Combination 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 Mortgage 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 Mortgage Loan with respect thereto (other than related Servicing
            Advances (including Workout-Delayed Reimbursement Amounts), which
            are otherwise payable or reimbursable, as applicable, in accordance
            with this Agreement) shall be paid or reimbursed, as applicable, out
            of any payments or other collections on the Mortgage Loans and/or
            any successor REO Mortgage Loans with respect thereto (exclusive of
            the related CBA A Loan or any successor REO Mortgage Loan with
            respect thereto); and

                  (C) no fees, costs or expenses allocable to the Mortgage
            Loans, any successor REO Mortgage Loans with respect thereto or any
            particular such Mortgage Loan or REO Mortgage Loan (exclusive of the
            related CBA A Loan or any successor REO Mortgage 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 Mortgage Loan with respect thereto; and

provided further, however, that in the case of any Junior Loan (to the extent
not inconsistent with the preceding provisos):

                  (A) the Master Servicer shall be entitled to make transfers
            from time to time, from the related Mortgage Loan Combination
            Custodial Account to the Collection Account, of amounts necessary
            for the payments and/or reimbursements of amounts described above in
            this Section 3.05(a), including the foregoing three provisos, but
            only insofar as the payment or reimbursement described therein
            arises from or is related to the subject CBA A/B Mortgage Loan
            Combination or is allocable to the subject CBA A/B Mortgage Loan
            Combination, 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 the Master Servicer shall
            also be entitled to make transfers from time to time, from the
            related Mortgage Loan Combination Custodial Account to the
            applicable Collection Account, of amounts transferred to such
            related Mortgage Loan Combination Custodial Account in error, and
            amounts necessary for the clearing and termination of the related
            Mortgage Loan Combination Custodial Account pursuant to Section
            9.01;

                  (B) the Master Servicer shall on the Business Day following
            receipt of payment 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
            Mortgage Loan Combination 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 Mortgage Loan Combination
being serviced under this Agreement shall be allocated in accordance with the
corresponding Intercreditor Agreement(s).

            If the Master Servicer is entitled to make any payment or
reimbursement described above and such payment or reimbursement relates to a
Mortgage Loan Combination, then the Master Servicer shall, if funds on deposit
in such Mortgage Loan Combination 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)) the Master Servicer
shall be entitled to make such payment or reimbursement from the applicable
Collection Account. The 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 from the
Borrower or proceeds of the Mortgage Loan Combination Custodial Account that
would otherwise be payable to the Junior Loan Holder, to the extent that any
amounts were previously taken by the 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 the
Master Servicer's Collection Account and shall not be deposited into the related
Mortgage Loan Combination Custodial Account.

            Subject to the provisions of Section 3.03(c), the Master Servicer
shall pay to the Special Servicer from the Master Servicer's Collection Account
on the Master Servicer Remittance Date amounts permitted to be paid to the
Special Servicer therefrom based upon an Officer's Certificate received from the
Special Servicer on the first Business Day following the immediately preceding
Determination Date describing the item and amount to which the Special Servicer
is entitled. The Master Servicer may rely conclusively on any such certificate
and shall have no duty to re-calculate the amounts stated therein. The Special
Servicer shall keep and maintain separate accounting for each Specially Serviced
Mortgage 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.

            The 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 the Collection Account and
Mortgage Loan Combination Custodial Account.

            If at any time the Master Servicer (or the Trustee) determines that
the reimbursement of a Nonrecoverable Advance during a Collection Period will
exceed the full amount of the principal portion of general collections received
on the Loans during such Collection Period, then the Master Servicer (or the
Trustee) shall use its reasonable efforts to give the Rating Agencies at least
15 days notice prior to any reimbursement to it of Nonrecoverable Advances from
amounts in the Collection Account allocable to interest on the Mortgage Loans
unless extraordinary or unanticipated circumstances, including, without
limitation, the following, make such notice impractical (1) the Master Servicer
(or the Trustee) determines in its sole discretion that waiting 15 days after
such a notice could jeopardize the Master Servicer's (or the Trustee's) ability
to recover such Nonrecoverable Advance, (2) changed circumstances or new or
different information becomes known to the Master Servicer (or the Trustee) that
could affect or cause a determination of whether any Advance is a Nonrecoverable
Advance, whether to defer reimbursement of a Nonrecoverable Advance or the
determination in clause (1) above, or (3) the Master Servicer has not timely
received from the Trustee information requested by the Master Servicer to
consider in determining whether to defer reimbursement of a Nonrecoverable
Advance (or the Trustee has not timely received from the Master Servicer
information requested by the Trustee to consider in determining whether to defer
reimbursement of a Nonrecoverable Advance); provided, however, that, if clause
(1), (2) or (3) apply, the Master Servicer (or, if applicable, the Trustee)
shall use reasonable efforts to give Rating Agencies notice of an anticipated
reimbursement to it of Nonrecoverable Advances from amounts in the Collection
Account allocable to interest on the Mortgage Loans as soon as reasonably
practicable in such circumstances. The failure to give such notice to the Rating
Agencies shall not give rise to any liability whatsoever on the part of the
Master Servicer or Trustee, and shall not be a condition for reimbursement of a
Nonrecoverable Advance from the Collection Account.

            (b) The Trustee, 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 of the Available Distribution Amount and
      any Yield Maintenance Charges on the Trust Mortgage Loans and REO Trust
      Mortgage Loans from the REMIC I Distribution Account to the REMIC II
      Distribution Account in respect of the Uncertificated REMIC I Interests
      and to the Holders of the Class LR Certificates, and from the REMIC II
      Distribution Account and the Grantor Trust Distribution Account to the
      Certificateholders pursuant to Section 4.01;

            (ii) to pay the Trustee accrued but unpaid Trustee Fees;

            (iii) to pay to the Trustee or any of its Affiliates, directors,
      officers, employees and agents, as the case may be, any amounts payable or
      reimbursable out of the Distribution Account to any such Person hereunder,
      including but not limited to those pursuant to Section 6.03(a), 6.03(b),
      8.05(c) or 8.05(d);

            (iv) to pay for the cost of recording this Agreement;

            (v) to pay for the cost of the Opinion of Counsel contemplated by
      Section 11.01(c) in connection with any amendment to this Agreement
      requested by the Trustee;

            (vi) to pay any and all federal, state and local taxes imposed on
      any of the REMIC Pools or any of their assets or transactions, together
      with all incidental costs and expenses, to the extent that none of the
      Depositor, the Master Servicer, the Special Servicer or the Trustee is
      liable therefor;

            (vii) to recoup any amounts deposited in the Distribution Account in
      error;

            (viii) to transfer amounts required to be transferred to the
      Interest Reserve Account pursuant to Section 3.28(a);

            (ix) to pay the Trustee any Net Investment Earnings on funds in the
      Distribution Account pursuant to Section 3.06; and

            (x) to clear and terminate the Distribution Account at the
      termination of this Agreement pursuant to Section 9.01.

            (c) Notwithstanding anything herein to the contrary, with respect to
any Mortgage Loan, (i) if amounts on deposit in the Collection Account and the
Distribution Account are not sufficient to pay the full amount of the Master
Servicing Fee listed in Section 3.05(a)(iii) and the Trustee Fee, listed in
Section 3.05(b)(ii), then the Trustee Fee shall be paid in full prior to the
payment of any Master Servicing Fee payable under Section 3.05(a)(ii) and (ii)
if amounts on deposit in the Collection Account are not sufficient to reimburse
the full amount of, together with interest on, Advances listed in Sections
3.05(a)(iv), (v), (vi) and (vii), then reimbursements shall be paid first to the
Trustee and then to the Master Servicer.

            Section 3.06 Investment of Funds in the Collection Account, Mortgage
Loan Combination Custodial Accounts, Servicing Accounts, Cash Collateral
Accounts, Lock-Box Accounts, Interest Reserve Account, REMIC I Distribution
Account, REMIC II Distribution Account, Excess Liquidation Proceeds Account,
Grantor Trust Distribution Account and the REO Account.

            (a) (i) The Master Servicer may direct any depository institution
maintaining for the Master Servicer the Collection Account, any Mortgage Loan
Combination 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)
the Special Servicer may direct any depository institution maintaining the REO
Account and (iii) the Trustee may direct any depository institution maintaining
the Excess Liquidation Proceeds Account, the Grantor Trust Distribution Account,
the REMIC I Distribution Account, the REMIC II Distribution Account and the
Interest Reserve Account (any of the foregoing accounts listed in this clause
(iii) for purposes of this Section 3.06, a "Trustee Account" and any of the
Master Servicer Accounts, the Trustee Accounts and the REO Account, for purposes
of this Section 3.06, an "Investment Account"), to invest (or if such depository
institution is the Master Servicer, Special Servicer or the Trustee, 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 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 Master Servicer (in the case of any Master Servicer Account) or
the Special Servicer (in the case of the REO Account), on behalf of the Trustee,
or the Trustee (in the case of any Trustee Account) shall be the "entitlement
holder", as such term is defined in the UCC, of any Permitted Investment that is
a "security entitlement", as such term is defined in the UCC, and 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 Master Servicer or Special Servicer 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 Master Servicer (in the case of any Master Servicer
Account), the Special Servicer (in the case of the REO Account) or the Trustee
(in the case of any Trustee 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 Master Servicer, Special Servicer or the Trustee, as
      the case may be, that such Permitted Investment would not constitute a
      Permitted Investment in respect of funds thereafter on deposit in the
      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 Collection Period shall
be for the sole and exclusive benefit of the 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(a),
3.04(e), 3.05(a) or 3.27, as the case may be. Interest and investment income
realized on funds deposited in the REO Account, to the extent of the Net
Investment Earnings, if any, with respect to such account for each Collection
Period, shall be for the sole and exclusive benefit of the Special Servicer and
shall be subject to withdrawal, or withdrawal at its direction, in accordance
with Section 3.16(c). Interest and investment income realized on funds and
deposited in each of the Trustee Accounts, to the extent of the Net Investment
Earnings, if any, with respect to such account for each period from the day
succeeding any Distribution Date to the next succeeding Distribution Date shall
be for the sole and exclusive benefit of the Trustee, but shall be subject to
withdrawal in accordance with Section 3.04(c), 3.04(d), 3.05(b) or 3.28. If any
loss shall be incurred in respect of any Permitted Investment directed to be
made by the Master Servicer or the Special Servicer, as applicable, other than
any loss on an investment made at the direction of the Borrower or made as
required under the Mortgage Loan Documents and on deposit in any of the Master
Servicer Accounts (in the case of the Master Servicer), the Master Servicer or
the Special Servicer, as applicable, shall deposit therein, no later than the
next Determination Date, without right of reimbursement, the amount of the Net
Investment Loss, if any, with respect to such account for the most recently
ended Collection Period; provided, however, that such Net Investment Loss shall
not include any loss incurred as a result of the insolvency of the federal or
state chartered depository institution or trust company that holds such account.
If any loss shall be incurred in respect of any Permitted Investment directed to
be made by the Trustee and on deposit in any of the Trustee Accounts, the
Trustee shall deposit therein, no later than the next 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 day succeeding the
immediately preceding Distribution Date (or, in the case of the initial
Distribution Date, from and including the Closing Date) to and including such
Distribution Date.

            (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.

            Notwithstanding the investment of funds held in any Investment
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) Subject to the following sentence, the Master Servicer shall use
its reasonable efforts, consistent with the Servicing Standard, to cause the
related Borrower to maintain, for each Mortgage Loan any and all Insurance
Policy coverage as is required under the related Mortgage Loan Documents (and,
if the related Borrower fails to do so, the Master Servicer shall itself
maintain such Insurance Policy coverage 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 the Master Servicer in accordance with the Servicing Standard);
provided 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 Master Servicer or Special Servicer,
as applicable, shall impose such insurance requirements as are consistent with
the Servicing Standard; and provided, further, that the Master Servicer is not
required to make a Nonrecoverable Servicing Advance to maintain any such
Insurance Policy. The Master Servicer shall use its reasonable efforts to cause
the related Borrower to maintain, and if the related Borrower does not so
maintain, the Master Servicer shall maintain, all-risk casualty insurance which
does not contain any carve-out for (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 Mortgage Loan Documents; provided that the Master Servicer shall not be
required to call a default under a Mortgage Loan if the related Borrower fails
to maintain such insurance, and the Master Servicer shall not be required to
maintain such insurance, if, in each case, the 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 subject Mortgaged
Property and located in or around the region in which the subject Mortgaged
Property is located or (b) such insurance is not available at any rate; and
provided, further, that the Master Servicer shall use reasonable efforts,
consistent with the Servicing Standard, to enforce any express provisions in the
related Mortgage Loan Documents relating to insurance against loss or damage
resulting from terrorist or similar acts. Subject to Section 3.17(a), the
Special Servicer shall maintain for each REO Property no less Insurance Policy
coverage than was previously required of the Borrower under the related Mortgage
Loan(s) or, at Special Servicer's election, coverage satisfying insurance
requirements consistent with the Servicing Standard; provided that such coverage
is available at commercially reasonable rates.

            All such Insurance Policies shall (i) contain a "standard" mortgagee
clause, with loss payable to the Master Servicer on behalf of the Trustee (in
the case of insurance maintained in respect of Mortgage Loans) or the 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
Mortgage Loan(s), 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 Mortgage Loan Documents) and be issued by a
Qualified Insurer (provided that such Qualified Insurer is authorized under
applicable law to issue such Insurance Policies). Any amounts collected by the
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 Mortgage Loan Documents) shall be deposited: (i) in the case of a
Mortgage Loan, in the Collection Account or any related Mortgage Loan
Combination Custodial Account, as applicable in accordance with Section 3.04,
maintained by the Master Servicer, subject to withdrawal pursuant to Section
3.05(a) or 3.04(e), as applicable; and (ii) in the case of an REO Property, in
the REO Account maintained by the Special Servicer, subject to withdrawal
pursuant to Section 3.16(c).

            Any costs incurred by the Master Servicer in maintaining any such
Insurance Policies in respect of Mortgage Loans if the Borrower defaults on its
obligation to maintain such Insurance Policies shall, subject to Section
3.03(c), be advanced by and reimbursable to the 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 Trust Mortgage Loan, notwithstanding that the terms of such Trust
Mortgage Loan so permit. Any cost incurred by the Special Servicer in
maintaining any such Insurance Policies with respect to REO Properties 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,
subject to Section 3.03(c), advanced by and reimbursable to the Master Servicer
as a Servicing Advance.

            (b) If the 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 Mortgage Loans or REO Properties, as the case may
be, required to be serviced and administered by it hereunder, and such Insurance
Policy provides protection equivalent to the individual policies otherwise
required, then the Master Servicer or 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 individual Insurance Policy, the Master
Servicer or the Special Servicer shall promptly deposit into the Collection
Account or any related Mortgage Loan Combination Custodial Account, as
applicable in accordance with Section 3.04, from its 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. The Master Servicer or Special Servicer, as
applicable, shall prepare and present, on behalf of itself, the Trustee, the
Certificateholders and any affected B Loan Holders, claims under any such
blanket Insurance Policy in a timely fashion in accordance with the terms of
such policy. The Special Servicer, to the extent consistent with the Servicing
Standard, may maintain earthquake insurance on REO Properties; provided that
such coverage is available at commercially reasonable rates.

            If the Master Servicer or Special Servicer causes any Mortgaged
Property to be covered by a master single interest Insurance Policy with a
Qualified Insurer naming the Master Servicer or Special Servicer as the loss
payee, then to the extent such Insurance Policy provides protection equivalent
to the individual policies otherwise required, the Master Servicer or Special
Servicer shall conclusively be deemed to have satisfied its obligation to cause
such insurance to be maintained on the related Mortgage Properties. If the
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 (i.e., other than any minimum or standby premium payable for such
policy whether or not any Mortgaged Property is covered thereby) shall be paid
by and reimbursable to the Master Servicer as a Servicing Advance. Such master
single interest Insurance Policy may contain a deductible clause, in which case
the Master Servicer or the Special Servicer, as applicable, 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 or any
related Mortgage Loan Combination Custodial Account, as applicable in accordance
with Section 3.04, from its 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 Trust Mortgage Loan, or, in the absence of any such
deductible limitation, the deductible limitation which is consistent with the
Servicing Standard.

            (c) The Master Servicer and Special Servicer, respectively, 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 Mortgage
Loans ("Master Servicer Employees", in the case of the Master Servicer, and
"Special Servicer Employees", in the case of the Special Servicer). Any such
Fidelity Bond and errors and omissions insurance shall protect and insure the
Master Servicer 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 the Master Servicer Employees or
Special Servicer Employees. Such errors and omissions policy shall also protect
and insure the Master Servicer against losses in connection with the release or
satisfaction of a Mortgage Loan 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 the
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 Master Servicer or Special Servicer, as applicable, 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 the Master Servicer or Special Servicer (or its immediate or remote parent)
is rated at least "A" by Fitch and "A2" by Moody's, the Master Servicer or
Special Servicer, respectively, shall be allowed to provide self-insurance with
respect to a Fidelity Bond and such errors and omissions policy. Coverage of the
Master Servicer or the Special Servicer under a policy or bond obtained by an
Affiliate of the Master Servicer or the Special Servicer and providing the
coverage required by this Section 3.07(c) shall satisfy the requirements of this
Section 3.07(c).

            The Special Servicer and the Master Servicer will promptly report in
writing to the Trustee any material changes that may occur in their respective
Fidelity Bonds, if any, and/or their 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 Mortgage Loans 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 Master Servicer to continue to require the
related Borrower to maintain earthquake insurance, the Master Servicer shall use
reasonable efforts to cause the related Borrower to maintain such insurance in
the amount, in the case of clause (i), required by the related Mortgage Loan
Documents 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. Any determination by the Master Servicer that
such insurance is not available at commercially reasonable rates with respect to
a Mortgage Loan for which any related Mortgaged Property has a "Probable Maximum
Loss", bounded on the basis of 50 years, in excess of 20% shall, with respect to
any Significant Trust Mortgage Loan, be subject to confirmation by each Rating
Agency that such determination not to purchase such insurance will, in and of
itself, not result in a downgrade, qualification or withdrawal of any of the
then-current ratings assigned to the Certificates rated by such Rating Agency.
The Master Servicer 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.

            (e) The Master Servicer and 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 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) shall be in a federally designated special flood hazard area (if
flood insurance has been made available), or if the Master Servicer becomes
aware, in performing its duties under this Agreement, that a Mortgaged Property
becomes located in such area by virtue of remapping conducted by the Federal
Emergency Management Agency, the Master Servicer will use its reasonable efforts
to cause the related Borrower (in accordance with applicable law and the terms
of the related Mortgage Loan Documents) to maintain, and, if the related
Borrower shall default in any such obligation to so maintain, the Master
Servicer shall itself maintain (to the extent available at commercially
reasonable rates (as determined by the Master Servicer in accordance with the
Servicing Standard) and the Trustee as Mortgagee has an insurable interest in
the related Mortgaged Property), flood insurance in respect thereof, but only to
the extent the related Mortgage Loan Documents permit 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 Mortgage Loan(s), (ii)
the maximum amount of insurance which is available under the National Flood
Insurance Act of 1968 and the Flood Disaster Protection Act of 1973, as amended,
and (iii) the amount required by the related Mortgage Loan Documents. If the
cost of any insurance described above is not borne by the Borrower, the 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 shall be located in a
federally designated special flood hazard area, the Special Servicer will cause
to be maintained, to the extent available at commercially reasonable rates (as
determined by the 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 REO Mortgage Loan(s), (ii) the maximum
amount of insurance which is available under the National Flood Insurance Act of
1968 and the Flood Disaster Protection Act of 1973, as amended, and (iii) the
amount required by the related Mortgage 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, subject to Section
3.03(c), paid by the Master Servicer as a Servicing Advance.

            (h) Subject to the related Mortgage Loan Documents, including in the
case where the related Mortgage Loan Documents permit the related Borrower to
maintain business income insurance for a shorter period of time imposed on such
Borrower at origination, the Master Servicer shall use reasonable efforts to
cause that each policy of business income insurance maintained by a Borrower
have a minimum term of at least twelve months.

            (i) Within 45 days after the Closing Date, with respect to each
Trust Mortgage Loan covered by an Environmental Insurance Policy as identified
on Exhibit P, the Master Servicer shall notify each Environmental Insurer that
(A) both the Master Servicer and the Special Servicer shall be sent notices
under the related Environmental Insurance Policy and (B) the Trustee, on behalf
of the Trust and any affected B Loan Holder, shall be the loss payee under the
related Environmental Insurance Policy. The Master Servicer and the Special
Servicer shall abide by the terms and conditions precedent to payment of claims
under any 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 the 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 Mortgage Loan covered thereby,
the 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 Standard 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 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 Master Servicer and shall be reimbursable to it as a
Servicing Advance.

            In the event that the Master Servicer receives notice of any
termination of any Environmental Insurance Policy that relates to one or more of
the Mortgage Loans, the Master Servicer shall, within five Business Days after
receipt of such notice, notify the Special Servicer, the Series 2005-C1
Directing Certificateholder, any affected B Loan Holder, the Rating Agencies and
the Trustee of such termination in writing. Upon receipt of such notice, the
Master Servicer or 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 Mortgage Loan Documents.

            Section 3.08 Enforcement of Due-on-Sale and Due-on-Encumbrance
Clauses; Assumption Agreements; Defeasance Provisions; Other Provisions

            (a) (i) As to each Mortgage Loan which contains a provision in the
nature of a "due-on-sale" clause, which by its terms:

                  (A) provides that such Mortgage Loan shall (or may at the
            mortgagee's option) become due and payable upon (i) the full or
            partial sale or other transfer of an interest in the related
            Mortgaged Property or (ii) a sale or transfer of direct or indirect
            ownership interests in the related Borrower; or

                  (B) provides that such Mortgage Loan may not be assumed
            without the consent of the mortgagee in connection with any such
            sale or other transfer,

the Master Servicer shall provide notice to the Special Servicer of any request
for a waiver thereof, and the Master Servicer (with respect to any GMACCM Trust
Mortgage Loans that are Performing Trust Mortgage Loans) and the Special
Servicer (with respect to all other Mortgage Loans) shall, if and to the extent
necessary, enforce such due-on-sale clause; provided, that the Master Servicer
may not, without the consent of the Special Servicer (as set forth in Section
3.08(c)), waive any due-on-sale clause in, or consent to the assumption of, any
Trust Mortgage Loan, or make any determination with respect to any Trust
Mortgage Loan, which by its terms permits transfer or assumption without lender
consent provided certain conditions are satisfied, that such conditions have
been satisfied. The Master Servicer or Special Servicer, as applicable, shall
enforce such due-on-sale clause unless the Special Servicer (in all cases,
including GMACCM Trust Mortgage Loans that are Performing Trust Mortgage Loans)
determines, in accordance with the Servicing Standard, that (1) not declaring an
Event of Default (as defined in the related Mortgage Loan Documents) or (2)
granting such consent, as applicable, 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 are met), on a present value basis
(discounting at the related Mortgage Rate), than would enforcement of such
clause or the failure to grant such consent. If the Special Servicer determines
that (1) not declaring an Event of Default (as defined in the related Mortgage
Loan Documents) or (2) granting such consent, as applicable, would be likely to
result in a greater recovery (or an equal recovery, provided that the other
conditions for an assumption or waiver of a due-on-sale clause are met), the
Master Servicer (in the case of a GMACCM Trust Mortgage Loan that is a
Performing Trust Mortgage Loan) and the Special Servicer (in the case of any
other Mortgage Loan) 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 Loan Documents and (y) (A) with
respect to any Trust Mortgage Loan which is a Significant Trust Mortgage Loan,
the Master Servicer or the Special Servicer, as applicable, shall have received
written confirmation from Fitch and (B) with respect to any Trust Mortgage Loan
which is one of the ten largest Trust Mortgage Loans by Stated Principal Balance
of all Trust Mortgage Loans at such time (treating any group of Crossed Trust
Mortgage Loans or any group of Trust Mortgage Loans with affiliated Borrowers as
a single Trust Mortgage Loan), the Master Servicer or the Special Servicer, as
applicable, shall have received written confirmation from Moody's, 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. To
the extent permitted by the related Mortgage Loan Documents, the Master Servicer
(in the case of a GMACCM Trust Mortgage Loan that is a Performing Trust Mortgage
Loan) and the Special Servicer (in the case of any other Mortgage Loan) 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.

            (ii) Notwithstanding the provisions of any Mortgage Loan,
      foreclosure by a Mezzanine Loan Holder on any Mezzanine Loan Collateral
      securing a Mezzanine Loan to an affiliate of the related Borrower shall
      not, for purposes of this Agreement, be deemed to be a violation of the
      due-on-sale clause of the related Mortgage Loan Documents or of clause (i)
      of this Section 3.08(a) so long as the foreclosing party is a Permitted
      Mezzanine Loan Holder, and other material requirements of the related
      intercreditor agreement are satisfied.

            (iii) Neither the Master Servicer nor the Special Servicer 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)(i). Neither the consent of the
      Master Servicer nor the consent of the 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 Mortgage Loan(s) (and each
      Rating Agency has been notified of such event of default), except as set
      forth in any related intercreditor agreement. In no event shall a
      Mezzanine Loan Holder be required to pay any assumption fee, modification
      fee or other service charge in connection with any foreclosure upon
      Mezzanine Loan Collateral, transfer of ownership of the related Mortgaged
      Property to such Mezzanine Loan Holder and/or assumption of the related
      Mortgage Loan; provided<184> that such Mezzanine Loan Holder may be
      required to reimburse the Master Servicer or Special Servicer, as
      applicable, for any costs or expenses incurred by it in connection with
      such foreclosure, transfer and/or assumption. Nothing herein shall prevent
      a Mezzanine Loan Holder from appointing a receiver or trustee with respect
      to any Mezzanine Loan Collateral, foreclosing upon any reserves, escrow
      accounts or cash collateral accounts pledged under the related Mezzanine
      Loan (provided none of such accounts have been pledged under the related
      Mortgage Loan) or otherwise taking an assignment of any cash flows from
      any Mezzanine Loan Collateral.

            (iv) Notwithstanding the foregoing provisions of this Section
      3.08(a), if the Master Servicer rejects a Borrower's request in connection
      with a due-on-sale clause with respect to a GMACCM Trust Mortgage Loan
      that is a Performing Trust Mortgage Loan, the Special Servicer may review
      and, subject to the conditions and provisions set forth in this Section
      3.08, determine to approve the Borrower's request.

            (b) As to each Mortgage Loan which contains a provision in the
nature of a "due-on-encumbrance" clause), which by its terms:

            (i) provides that such Mortgage Loan shall (or, at the mortgagee's
      option, may) become due and payable upon (A) the creation of any
      additional lien or other encumbrance on the related Mortgaged Property or
      (B) an encumbrance, pledge or hypothecation of direct or indirect
      ownership interests in the related Borrower or its owners (including any
      incurrence of mezzanine financing secured by ownership interests in the
      related Borrower or its owners or the creation of preferred equity in the
      related Borrower or its owners); or

            (ii) requires the consent of the mortgagee to the creation of any
      such additional lien or other encumbrance on the related Mortgaged
      Property;

the Master Servicer shall provide notice to the Special Servicer of any request
for a waiver thereof, and the Master Servicer (with respect to any GMACCM Trust
Mortgage Loans that are Performing Trust Mortgage Loans) and Special Servicer
(with respect to any other Mortgage Loans) shall, if and to the extent
necessary, enforce such due-on-encumbrance clause; provided, that the Master
Servicer may not, without the consent of the Special Servicer (as set forth in
Section 3.08(c)), waive any due-on-encumbrance clause in, or consent to the
creation of any such additional lien or other encumbrance on the related
Mortgaged Property securing, any Trust Mortgage Loan, or make any determination
with respect to any Trust Mortgage Loan, which by its terms permits encumbrance
without lender consent provided certain conditions are satisfied, that such
conditions have been satisfied. The Master Servicer or Special Servicer shall
enforce such due-on-encumbrance clause unless the Special Servicer (in all
cases, including GMACCM Trust Mortgage Loans that are Performing Trust Mortgage
Loans): (x) determines, in accordance with the Servicing Standard, that (1) not
declaring an event of default under such Mortgage Loan or (2) granting such
consent, as applicable, would result in a greater or equal recovery on a present
value basis (discounting at the related Mortgage Rate) than would enforcement of
such clause or the failure to grant such consent; and (y)(A) with respect to any
Trust Mortgage Loan which (i) is a Significant Trust Mortgage Loan or (ii) by
itself, or as part of a Crossed Trust Mortgage Loan group or group of Trust
Mortgage Loans with affiliated Borrowers has (a) a Loan-to-Value Ratio equal to
or greater than 85% or (b) a Debt Service Coverage Ratio equal to or less than
1.2x (in each case, treating the existing debt on the subject Mortgaged Property
and the proposed additional debt as if such total debt were a single Trust
Mortgage Loan), receives (including, in the case of a GMACCM Trust Mortgage Loan
that is a Performing Trust Mortgage Loan, through the Master Servicer) from
Fitch and (B) with respect to any Trust Mortgage Loan that is one of the ten
largest Trust Mortgage Loans by Stated Principal Balance of all Trust Mortgage
Loans at such time (treating any group of Crossed Trust Mortgage Loans or any
group of Trust Mortgage Loans with affiliated Borrowers as a single Trust
Mortgage Loan), receives (including, in the case of a GMACCM Trust Mortgage Loan
that is a Performing Trust Mortgage Loan, through the Master Servicer) from
Moody's, prior written confirmation that (1) not declaring an event of default
under such Mortgage Loan or (2) granting such consent, as applicable, 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 related Mortgage Loan Documents, the Master Servicer (with respect to any
GMACCM Trust Mortgage Loans that are Performing Trust Mortgage Loans) or the
Special Servicer (with respect to all other Mortgage Loans) shall use reasonable
efforts to cause the Borrower to pay the costs associated with such Rating
Agency confirmation, otherwise, such costs shall be a Trust Fund expense.

            If the Special Servicer, in accordance with the Servicing Standard,
objects to the determination by the Master Servicer with respect to a Performing
Trust Mortgage Loan acquired from GMACCM, which by its terms permits transfer,
assumption or further encumbrance without lender consent provided certain
conditions are satisfied, that such conditions have been satisfied, then the
Master Servicer will not permit the transfer, assumption or further encumbrance
with respect to such Performing Trust Mortgage Loan. If the Special Servicer, in
accordance with the Servicing Standard, determines with respect to any other
Mortgage Loan, which by its terms permits transfer, assumption or further
encumbrance without lender consent provided certain conditions are satisfied,
that such conditions have not been satisfied, then the Master Servicer will not
permit the transfer, assumption or further encumbrance with respect to such
other Mortgage Loan.

            (iii) Notwithstanding the foregoing provisions of this Section
      3.08(b), if the Master Servicer rejects a Borrower's request in connection
      with a due-on-encumbrance clause with respect to a GMACCM Trust Mortgage
      Loan that is a Performing Trust Mortgage Loan, the Special Servicer may
      review and, subject to the conditions and provisions set forth in this
      Section 3.08, determine to approve the Borrower's request.

            (c) Any approval required to be obtained by the Master Servicer from
the Special Servicer for any action taken by the Master Servicer pursuant to
this Section 3.08 with respect to a GMACCM Trust Mortgage Loan that is a
Performing Trust Mortgage Loan (the giving of which approval shall be subject to
the Servicing Standard and Section 3.21) shall be deemed given if not denied in
writing within ten (10) Business Days (or, in the case of an assumption
transaction, 10 days) after receipt by the Special Servicer of the Master
Servicer's written recommendation and analysis and any additional information
requested by the Special Servicer or the Series 2005-C1 Directing
Certificateholder, as applicable. If any such action taken by the Master
Servicer pursuant to this Section 3.08 requires the approval of the Series
2005-C1 Directing Certificateholder, then such approval shall be deemed given if
not denied in writing within ten (10) Business Days (or, in the case of an
assumption transaction, 10 days), which 10-Business Day (or 10-day, as
applicable) period shall coincide with the Special Servicer's 10-Business Day
(or 10-day, as applicable) period to object set forth in the preceding sentence.
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 Mortgage
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.

            (d) Except as otherwise permitted by Section 3.20, the Master
Servicer or the Special Servicer, as applicable, shall not agree to modify,
waive or amend any payment term of any Mortgage Loan in connection with the
taking of, or the failure to take, any action pursuant to this Section 3.08.

            (e) Notwithstanding any other provisions of this Section 3.08, with
respect to any Performing Trust Mortgage Loans, the Master Servicer may (without
the consent of the Special Servicer) 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 similar
purpose and may consent to subordination of the related Mortgage Loan(s) to such
easement, right-of-way or similar agreement; provided that the 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 or adversely affect the
value of such Mortgaged Property and (ii) that no REMIC Pool 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
either REMIC Pool as a result thereof; and provided, further that the Master
Servicer shall cause the Borrower to pay the costs (including attorneys' fees
and expenses) associated with the determination described in clause (ii).

            (f) With respect to any Mortgage Loan which permits release of
Mortgaged Properties through defeasance (each, a "Defeasance Mortgage Loan"), to
the extent permitted under the related Mortgage Loan Documents:

            (i) The Master Servicer shall effect such defeasance only through
      the purchase of non-callable U.S. government obligations satisfying the
      REMIC Provisions ("Defeasance Collateral") which purchase shall be made in
      accordance with the terms of the related Mortgage Loan Documents (except
      that the Master Servicer is authorized to accept Defeasance Collateral
      meeting the foregoing requirements in spite of more restrictive
      requirements of the related Mortgage Loan Documents); provided, however,
      that the 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 Mortgage Loan permits the assumption of the obligations
      of the related Borrower by a successor Borrower, the Master Servicer shall
      cause the Borrower or such successor Borrower to pay all expenses incurred
      in connection with the establishment of a successor Borrower (which shall
      be a Single-Purpose Entity) and to cause an assumption by such successor
      Borrower of the defeased obligations under the related Note. The Master
      Servicer shall be permitted to establish a single Single-Purpose Entity to
      assume the defeased obligations under all of the Mortgage Loans that have
      been defeased.

            (iii) The 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 qualifications and exceptions).

            (iv) The 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, with respect to each Rating Agency, if such defeasance or
      partial defeasance or such Mortgaged Property relates to any Trust
      Mortgage Loan that represents one of the ten largest Loans of all Trust
      Mortgage Loans at such time (which for purposes of this clause (v) shall
      include groups of Crossed Trust Mortgage Loans and groups of Trust
      Mortgage Loans made to affiliated Borrowers), the Master Servicer shall
      obtain, at the expense of the related Borrower, written confirmation from
      each Rating Agency 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) Neither the Master Servicer nor the Special Servicer shall
      permit the release of any Mortgaged Property through defeasance unless the
      related Borrower establishes to the satisfaction of the Master Servicer or
      the Special Servicer 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, if the related Trust Mortgage Loan so requires and provides
      for the related Borrower to pay the cost thereof, the 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 REMIC Pool
      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 under the REMIC
      Provisions.

            (viii) Neither the Master Servicer nor the Special Servicer shall
      permit a partial defeasance with respect to any Mortgage Loan unless the
      Defeasance Collateral is sufficient to satisfy the payments and amount
      required pursuant to the related Mortgage Loan Documents with respect to
      such partial defeasance.

To the extent permitted under the related Mortgage Loan Documents, any costs to
the Master Servicer of obtaining legal advice to make the determinations
required to be made by it pursuant to this Section 3.08(f), or obtaining the
Rating Agency confirmations required by this Section 3.08(f), shall be borne by
the related Borrower as a condition to the Master Servicer's obligation to
effect the defeasance of the related Trust Mortgage Loan, or borne by the
related Mortgage Loan Seller (to the extent it is required to make such payment
under the related Mortgage Loan Purchase Agreement) or advanced as a Servicing
Advance by the Master Servicer, and otherwise shall be a Trust Fund expense. The
Master Servicer shall deliver all documents relating to the defeasance of any
Trust Mortgage Loan to the Trustee for inclusion in the related Mortgage File.

            (g) With respect to any Mortgage Loan that permits the related
Borrower to incur subordinate indebtedness secured by the related Mortgaged
Property, the Master Servicer or the Special Servicer, as applicable, shall
enforce the rights of the lender, if any, under the related Mortgage Loan
Documents to require such Borrower to require the lender of such subordinate
indebtedness to enter into a subordination and standstill agreement with the
Trust.

            (h) With respect to any Trust Mortgage Loan, subject to the related
Mortgage Loan Documents, neither the Master Servicer nor the 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 Trust Mortgage Loan as of the Closing
Date without receipt of an Opinion of Counsel, at the expense of the Borrower,
to the effect that the substitution will not cause the related Trust Mortgage
Loan to fail to qualify as a "qualified mortgage" as defined under Section
860G(a)(3) of the Code while such Trust Mortgage Loan is owned by any REMIC
Pool.

            Section 3.09 Realization Upon Defaulted Mortgage Loans

            (a) The 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 Mortgage
Loans 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 Master Servicer shall not be required to make a
Servicing Advance and expend funds toward the restoration of such property
unless (i) the 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
any affected B Loan Holder, as a collective whole, after reimbursement to the
Master Servicer for such Servicing Advance and interest thereon and (ii) the
Master Servicer has determined that such Servicing Advance together with accrued
and unpaid interest thereon, will be recoverable by the Master Servicer out of
the proceeds of liquidation of such Mortgaged Property, as contemplated in
Sections 3.05(a)(v) and 3.05(a)(vii) (or, if applicable, Section 3.04(e)). The
Master Servicer shall advance all costs and expenses incurred by the Special
Servicer in any such proceedings (such costs and expenses to be advanced by the
Master Servicer to the Special Servicer in accordance with Section 3.03(c) and
recoverable by the Master Servicer as a Servicing Advance); provided that, in
each case, such cost or expense would not, if incurred, constitute a
Nonrecoverable Servicing Advance.

            Nothing contained in this Section 3.09 shall be construed to require
the Special Servicer, on behalf of the Trust Fund and any affected B Loan
Holder, 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 the Special Servicer in its reasonable judgment taking into
account, as applicable, among other factors, the period and amount of any
delinquency on the affected Mortgage Loan(s), the occupancy level and physical
condition of the Mortgaged Property or REO 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 Special Servicer deems it necessary and
prudent for purposes of establishing the fair market value of any Mortgaged
Property securing a defaulted Mortgage Loan, whether for purposes of bidding at
foreclosure or otherwise, the Special Servicer is authorized to have an
Appraisal performed with respect to such property, the cost of which Appraisal
shall be paid by the Master Servicer as a Servicing Advance.

            (b) The 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 Special
      Servicer; or

            (ii) the 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 REMIC Pool under the REMIC Provisions or cause
      any REMIC Pool to fail to qualify as a REMIC.

            (c) Notwithstanding the foregoing provisions of this Section 3.09,
the 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, in the case of a Mortgage
Loan Combination, the related B Loan Holder), 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) the 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 taking into account the
existence of any 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 into 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 Master Servicer as a
Servicing Advance. If any such Environmental Assessment so warrants, the Special
Servicer shall, at the expense of the Trust Fund and/or, subject to the
applicable intercreditor, co-lender or similar agreement, any related B Loan
Holder, as a collective whole, 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 defaulted Mortgage 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 the related Mortgage Loan Purchase Agreement for which the
related Mortgage Loan Seller could be required to repurchase the related Trust
Mortgage Loan pursuant to Section 7 of the related Mortgage Loan Purchase
Agreement, then the Special Servicer shall take such action as it deems to be in
the best economic interest of the Trust Fund and any affected B Loan Holder, 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 Special Servicer shall provide written reports and a copy of
any Environmental Assessments to the Trustee, the Master Servicer and the
Certificateholders (or, if the Controlling Class of Certificates are held in
book-entry form, the Certificate Owners) of the Controlling Class, any affected
B Loan Holder and any Requesting Subordinate Certificateholder (at the expense
of such Requesting Subordinate Certificateholder) monthly regarding any actions
taken by the Special Servicer with respect to any Mortgaged Property securing a
defaulted Mortgage 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 of the related Trust Mortgage Loan by the related Mortgage Loan
Seller or release of the lien of the related Mortgage on such Mortgaged
Property; provided, however, that with respect to each such report or
Environmental Assessment, if beneficial ownership of the Controlling Class
resides in more than one Certificateholder (or, if the Controlling Class of
Certificates are held in book-entry form, more than one Certificate Owner), the
Special Servicer shall be responsible only for the expense of providing the
first such copy thereof and shall be entitled to reimbursement from the Trust
Fund for the expense of any additional copies so provided. 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 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 interests 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.
The Special Servicer shall provide the Master Servicer with all information or
reports necessary to enable the 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 the Master Servicer's request therefor). The Master
Servicer shall deliver a copy of any such report to the Trustee.

            (g) The 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 securing any defaulted Mortgage Loan is located and the terms of that
Mortgage Loan permit such an action.

            (h) The Special Servicer shall maintain accurate records, prepared
by one of its Servicing Officers, of each Final Recovery Determination in
respect of a defaulted Mortgage 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 Master Servicer and any affected B Loan Holder no
later than the first Business Day following the end of the Collection Period in
which such Final Recovery Determination was made.

            Section 3.10 Trustee to Cooperate; Release of Mortgage Files

            (a) Upon the payment in full of any Mortgage Loan, or the receipt by
the Master Servicer or the 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 Master Servicer or Special Servicer, as the case may be, will
promptly notify the Trustee and request delivery of the related Mortgage File.
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 Collection Account or a Mortgage Loan
Combination Custodial Account, as applicable pursuant to Section 3.04, or
remitted to the 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 Master Servicer or Special 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(b), the Master Servicer or
the 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 Master Servicer or the Special Servicer, and the Trustee
shall release and deliver the related Mortgage File to the Master Servicer or
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
the Collection Account or any Mortgage Loan Combination Custodial Account.

            (b) From time to time as is appropriate for servicing or foreclosure
of any Mortgage Loan, the Master Servicer or the Special Servicer, as
applicable, 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 Master Servicer or the 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) Within seven Business Days (or within such shorter period as
delivery can reasonably be accomplished if the Special Servicer notifies the
Trustee of an exigency) of receipt thereof, the Trustee shall execute and
deliver to the Special Servicer any court pleadings, requests for trustee's sale
or other documents necessary to the release of the lien of a Mortgage, 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. The
Special Servicer shall be responsible for the preparation of all such documents
and pleadings. When submitted to the Trustee and, if applicable, the related
Junior Loan Holder(s) 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 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 a Mortgage Loan Combination, the related B Loan Holder(s)) (as a
collective whole) and that the execution and delivery thereof by the Trustee and
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.

            (d) From time to time as is appropriate for servicing or foreclosure
of any B Loan, the Master Servicer or Special Servicer, as applicable, subject
to the related intercreditor, co-lender or similar agreement, shall request the
original of the related Note from the related B Loan Holder.

            Section 3.11 Servicing Compensation

            (a) As compensation for its activities hereunder, the Master
Servicer shall be entitled to receive the Master Servicing Fee with respect to
each Trust Mortgage Loan and REO Trust Mortgage Loan (including Specially
Serviced Trust Mortgage Loans, Defeasance Mortgage Loans and Additional
Collateral Trust Mortgage Loans). As to each Trust Mortgage Loan and REO Trust
Mortgage Loan, the Master Servicing Fee shall accrue at the related Master
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 same principal amount as interest accrues from time
to time on such Trust Mortgage Loan or is deemed to accrue from time to time on
such REO Trust Mortgage Loan, as the case may be, and for the same period
respecting which any related interest payment due on such Trust Mortgage Loan or
deemed due on such REO Trust Mortgage Loan, as the case may be, is computed. The
Master Servicing Fee with respect to any Trust Mortgage Loan or REO Trust
Mortgage 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 each Trust Mortgage Loan and REO Revenues
allocable as interest on each REO Trust Mortgage Loan. In no event will the
Master 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.

            The Master Servicer shall be entitled to recover unpaid Master
Servicing Fees in respect of any Mortgage Loan or REO Mortgage Loan required to
be serviced by it out of that portion of related payments, Insurance and
Condemnation Proceeds, Liquidation Proceeds and REO Revenues (in the case of an
REO Mortgage Loan) allocable as recoveries of interest, to the extent permitted
by Section 3.05(a). The right to receive the Master Servicing Fee may not be
transferred in whole or in part except in connection with the transfer of all of
the Master Servicer's responsibilities and obligations under this Agreement. The
parties hereto acknowledge that the annual fees of each Rating Agency allocable
to the Column Trust Mortgage Loans and the GMACCM Trust Mortgage Loans have been
paid on or prior to the Closing Date.

            Additional master 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 Mortgage Loans that are
not Specially Serviced Trust Mortgage Loans (but only to the extent that all
amounts then due and payable with respect to such Mortgage Loans have been
paid), (ii) all Penalty Charges actually collected on each Trust Mortgage Loan
(other than Specially Serviced Trust Mortgage Loans) but only to the extent that
(A) all amounts then due and payable with respect to such Trust Mortgage Loan
(including outstanding interest on all Advances accrued with respect to such
Trust Mortgage Loan) have been paid, (B) the Trust Fund has been reimbursed with
respect to any Advances made with respect to such Trust Mortgage Loan, together
with interest thereon if such interest was paid to the Master Servicer, Special
Servicer or the Trustee, as applicable, from a source of funds other than
Penalty Charges collected on such Trust Mortgage Loan and (C) the Trust Fund has
been reimbursed for any Additional Trust Fund Expenses incurred since the
Closing Date with respect to such Trust Mortgage Loan and previously paid from a
source other than Penalty Charges on such Trust Mortgage Loan, (iii) all 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 Trust Mortgage Loan modifications and other actions for
which the Master Servicer is responsible pursuant to Section 3.20 (but only to
the extent that all amounts then due and payable after giving effect to any
modification with respect to the related Trust Mortgage Loan have been paid),
(v) all reasonable and customary consent fees, waiver fees, release fees and
fees in connection with defeasance, if any, and (vi) all other customary
charges, in each case only to the extent actually paid by the related Borrower,
shall be retained by the Master Servicer and shall not be required to be
deposited in the Collection Account or any Mortgage Loan Combination Custodial
Account pursuant to Section 3.04. 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 Master Servicer shall be entitled to that portion, if
any, of a Penalty Charge collected on a Specially Serviced Trust Mortgage Loan
that accrued prior to the related Servicing Transfer Event and (y) if the
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 Master Servicer and the
Special Servicer based on the respective portions of such Penalty Charge to
which they would otherwise have been entitled.

            The Master Servicer also shall be entitled to receive and retain
additional servicing compensation in the form of: (i) interest or other income
earned on deposits relating to the Trust Fund in the Collection Account and any
Mortgage Loan Combination Custodial Accounts, maintained by the Master Servicer
in accordance with Section 3.06 (but only to the extent of the Net Investment
Earnings, if any, with respect to each such account for each Collection Period);
(ii) interest earned on deposits in any Cash Collateral Account, any Lockbox
Account and the Servicing Accounts maintained by the Master Servicer that is not
required by applicable law or the related Trust Mortgage Loan to be paid to the
Borrower; and (iii) collections representing Prepayment Interest Excesses for
any Distribution Date (except to the extent necessary to offset Prepayment
Interest Shortfalls for such Distribution Date).

            Without limiting its rights under any other agreement or
arrangement, the Master Servicer shall not be entitled to any Master Servicing
Fees or any other compensation hereunder with respect to the CBA B Loans.

            Except as specifically provided in this Agreement, the 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 or master
single interest Insurance Policy insuring against hazard losses pursuant to
Section 3.07), if and to the extent such expenses are not payable directly out
of the Collection Account or any Mortgage Loan Combination Custodial Account,
and the Master Servicer shall not be entitled to reimbursement therefor except
as expressly provided in this Agreement.

            The Master Servicing Fee with respect to the JFK Medical Pavilion II
Loan shall be deemed to be an expense of REMIC I.

            (b) As compensation for its activities hereunder, the Special
Servicer shall be entitled to receive the Special Servicing Fee with respect to
each Specially Serviced Mortgage Loan and REO Mortgage Loan. As to each such
Specially Serviced Mortgage Loan or REO Mortgage 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 Mortgage Loan or REO Mortgage Loan and for
the same period respecting which any related interest payment due on such
Specially Serviced Mortgage Loan or deemed to be due on such REO Mortgage Loan
is computed. The Special Servicing Fee with respect to any Specially Serviced
Mortgage Loan or REO Mortgage Loan shall cease to accrue if a Liquidation Event
occurs in respect thereof or, in the case of a Specially Serviced Mortgage Loan,
when all applicable Servicing Transfer Events cease to exist as described in the
definition of "Servicing Transfer Event". The Special Servicing Fee shall be
payable monthly, on a loan-by-loan basis, to the extent permitted by Section
3.05(a). The right to receive the Special Servicing Fee may not be transferred
in whole or in part except in connection with the transfer of all of the Special
Servicer's responsibilities and obligations under this Agreement.

            Additional servicing compensation in the form of (i) 100% of all
assumption fees and assumption application fees on all Specially Serviced
Mortgage Loans, (ii) 50% of all assumption fees on any Mortgage Loans other than
Specially Serviced Mortgage Loans and (iii) all commercially reasonable
extension fees and all fees received on or with respect to Trust Mortgage Loan
modifications, waivers and consents for which the Special Servicer is
responsible pursuant to Section 3.20(a), but only to the extent actually
collected from the related Borrower and only to the extent that all amounts then
due and payable after giving effect to any modification with respect to the
related Trust Mortgage Loan (including those payable to the Master Servicer
pursuant to Section 3.11(a)) have been paid, shall be promptly paid to the
Special Servicer by the Master Servicer and shall not be required to be
deposited in the Collection Account or any Mortgage Loan Combination Custodial
Account pursuant to Section 3.04.

            The Special Servicer shall also be entitled to additional servicing
compensation in the form of a Workout Fee with respect to each Corrected
Mortgage Loan at the Workout Fee Rate. The Workout Fee shall be payable out of,
and shall be calculated by application of the Workout Fee Rate to, each
collection of interest, other than Default Interest and Excess Interest, 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 Mortgage Loan) received on such
Mortgage Loan for so long as it remains a Corrected Mortgage Loan. The Workout
Fee with respect to any Corrected Mortgage Loan will cease to be payable if such
Mortgage Loan again becomes a Specially Serviced Mortgage Loan; provided that a
new Workout Fee will become payable if and when such Mortgage Loan again becomes
a Corrected Mortgage Loan. If the Special Servicer is terminated (other than for
cause) or resigns, it shall retain the right to receive any and all Workout Fees
payable with respect to Mortgage Loans that became Corrected Mortgage Loans
during the period that it acted as Special Servicer and were Corrected Mortgage
Loans at the time of such termination or resignation (or for any Specially
Serviced Mortgage Loan that had not yet become a Corrected Mortgage Loan because
at the time the Special Servicer was terminated or resigned the Borrower had not
made three consecutive monthly debt service payments and subsequently the
Specially Serviced Mortgage Loan becomes a Corrected Mortgage Loan), and the
successor Special Servicer shall not be entitled to any portion of such Workout
Fees) in each case until the Workout Fee for any such loan ceases to be payable
in accordance with the terms hereof.

            A Liquidation Fee will be payable to the Special Servicer with
respect to each Trust Mortgage Loan repurchased by the applicable Mortgage Loan
Seller after the Initial Resolution Period as described in Section 2.03, any
Specially Serviced Mortgage Loan or REO Mortgage Loan as to which the Special
Servicer receives a full, partial or discounted payoff with respect thereto from
the related Borrower or any Liquidation Proceeds with respect thereto, equal to
the product of (i) the Liquidation Fee Rate and (ii) the proceeds of such
repurchase or full, partial or discounted payoff or the net Liquidation Proceeds
(net of the related costs and expenses associated with the related liquidation)
related to such repurchased Trust Mortgage Loan or liquidated Specially Serviced
Mortgage Loan or REO Mortgage Loan, as the case may be (in each such case,
however, exclusive of any portion of such payoff and/or proceeds that represents
Penalty Charges and/or Excess Interest); provided, however, that no Liquidation
Fee shall be payable out of, or in connection with the receipt of, Liquidation
Proceeds received as a result of the repurchase or replacement of any Trust
Mortgage Loan in connection with a Material Breach or Material Defect by the
related Mortgage Loan Seller or, in the case of a Column Trust Mortgage Loan, by
the Column Performance Guarantor as contemplated by Section 2.03 (so long as
such repurchase or replacement occurs within the applicable cure period set
forth in the related Mortgage Loan Purchase Agreement, as such cure period may
be extended in accordance with the related Mortgage Loan Purchase Agreement),
the purchase of any Defaulted Trust Mortgage Loan by the Special Servicer or any
Affiliate thereof pursuant to Section 3.18, the purchase of any CBA A Loan by
the related B Loan Holder pursuant to the related CBA A/B Intercreditor
Agreement so long as such purchase occurs within 90 days of the Servicing
Transfer Event, the purchase of any Trust Mortgage Loan by any related Mezzanine
Loan Holder (but only so long as such purchase occurs within 60 days of the
Mezzanine Loan Holder's option in the related intercreditor agreement first
becoming exercisable) or the purchase of all the Trust Mortgage Loans and REO
Properties in the Trust Fund by Holders of more than 50% of the Percentage
Interests in the Controlling Class, the Special Servicer or the Master Servicer
pursuant to Section 9.01.

            Notwithstanding anything in this Agreement to the contrary, no
Liquidation Fee will be payable under the circumstances set forth in the proviso
in the preceding paragraph. If, however, Liquidation Proceeds are received with
respect to any Corrected Mortgage Loan and the 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 on such Trust Mortgage Loan.

            The Special Servicer will also be entitled to additional fees in the
form of Penalty Charges on each Specially Serviced Mortgage Loan (but only to
the extent actually collected from the related Borrower and to the extent that
(i) all amounts then due and payable with respect to such Specially Serviced
Mortgage Loan (including outstanding interest on all Advances accrued with
respect to such Specially Serviced Mortgage Loan) have been paid, (ii) the Trust
Fund has been reimbursed with respect to any Advances made with respect to such
Specially Serviced Mortgage Loan, together with interest thereon if such
interest was paid to the Master Servicer, Special Servicer or the Trustee, as
applicable, from a source of funds other than Penalty Charges collected on such
Specially Serviced Mortgage Loan, and (iii) the Trust Fund has been reimbursed
for any Additional Trust Fund Expenses incurred since the Closing Date with
respect to such Specially Serviced Mortgage Loan and previously paid from a
source other than Penalty Charges on such Trust Mortgage Loan). The 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 or master single interest 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 the Collection Account, a Mortgage Loan
Combination Custodial Account or the REO Account, and the Special Servicer shall
not be entitled to reimbursement therefor except as expressly provided in this
Agreement.

            Notwithstanding the foregoing provisions of this Section 3.11(b),
Special Servicing Fees, Workout Fees and Liquidation Fees earned with respect to
any A Loan, any successor REO Trust Mortgage Loan with respect thereto or any
related REO Property shall be payable out of the related Mortgage Loan
Combination Custodial Account, to the maximum extent permitted by the related
Intercreditor Agreement, before being paid out of the Collection Account. The
Special Servicer shall be entitled to such compensation with respect to the B
Loans as is not prohibited under the respective Intercreditor Agreements.

            Section 3.12 Reports to the Trustee

            (a) The Master Servicer shall deliver to the Trustee and the 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 April 2005, the CMSA Loan Periodic
Update File with respect to the subject Distribution Date. As to each Trust
Mortgage Loan and REO Property (or related REO Trust Mortgage Loan), to the
extent that the relevant information is not included as part of the CMSA Loan
Periodic Update File, the Master Servicer shall provide to the Special Servicer,
by the close of business on each Distribution Date and in a mutually agreeable
electronic format, the amount of each outstanding Advance and the interest
accrued thereon as of the related Determination Date.

            (b) Notwithstanding the foregoing, because the 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 the Master Servicer in April 2005 will be based
solely upon information generated from actual collections received by the Master
Servicer and from information the Depositor delivers or causes to be delivered
to the Master Servicer (including but not limited to information prepared by
third-party servicers of the subject Trust Mortgage Loans with respect to the
period prior to the Closing Date).

            (c) No later than 1:00 p.m. New York City time on each Master
Servicer Remittance Date beginning in May 2005 (or with respect to clause (viii)
below, in April 2005), the Master Servicer shall deliver or cause to be
delivered to the Trustee the following reports with respect to the Trust
Mortgage Loans (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 Historical Liquidation Report; (v) a CMSA REO Status Report; (vi) a
CMSA Servicer Watch List; (vii) a CMSA Property File; (viii) a CMSA Loan Set-up
File and (ix) a CMSA Financial File. 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 Trustee and the Master Servicer.

            (d) The Special Servicer shall from time to time (and, in any event,
upon request) provide the Master Servicer with such information in its
possession regarding the Specially Serviced Mortgage Loans and REO Properties as
may be necessary for the Master Servicer to prepare each report and any
supplemental information to be provided by the Master Servicer to the Trustee.
Without limiting the generality of the foregoing, not later than 2:00 p.m. (New
York City time) on the Business Day following each Determination Date, beginning
in May 2005 (or with respect to clause (ii) below, in April 2005), the Special
Servicer shall prepare and deliver or cause to be delivered to the Master
Servicer (on a computer readable medium reasonably acceptable to the Master
Servicer and the Special Servicer) the following reports (or data files relating
to reports of the Master Servicer) with respect to the Specially Serviced
Mortgage Loans and REO Properties, providing the required information as of such
Determination Date: (i) a CMSA Property File; (ii) a CMSA Loan Periodic Update
File (which, in each case, if applicable, will identify each of the subject
Mortgage Loans by loan number and property name); (iii) a CMSA Delinquent Loan
Status Report; (iv) a CMSA Comparative Financial Status Report; (v) a CMSA
Historical Liquidation Report; (vi) a CMSA Historical Loan Modification and
Corrected Mortgage Loan Report; (vii) a CMSA REO Status Report; and (viii) a
CMSA Special Servicer Loan File.

            (e) Notwithstanding the foregoing, the failure of the Master
Servicer or the Special Servicer to disclose any information otherwise required
to be disclosed pursuant to this Section 3.12 shall not constitute a breach of
this Agreement to the extent that the Master Servicer or the Special Servicer,
as the case may be, so fails because such disclosure, in the reasonable belief
of the Master Servicer or the Special Servicer, as the case may be, would
violate any applicable law or any provision of a Mortgage Loan Document
prohibiting disclosure of information with respect to the Mortgage Loans or the
Mortgaged Properties, would constitute a waiver of the attorney-client privilege
on behalf of the Trust or would otherwise materially harm the Trust Fund. The
Master Servicer or the Special Servicer may affix to any information provided by
it any disclaimer it deems appropriate in its reasonable discretion (without
suggesting liability on the part of any other party hereto).

            (f) The Master Servicer shall deliver or cause to be delivered to
the Trustee 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 pursuant to the related Mortgage Loan Documents and have been received
by the Master Servicer:

                  (A) At least annually by May 31, commencing May 31, 2006, or
            as soon thereafter as is reasonably practicable based upon when, and
            the format in which, the Master Servicer has received the subject
            information, with respect to each Trust Mortgage Loan and REO Trust
            Mortgage Loan (to the extent prepared by and timely received from
            the Special Servicer in the case of any Specially Serviced Trust
            Mortgage Loan or REO Trust Mortgage 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, based upon (and accompanied by copies of) the
            operating statements and rent rolls (but only to the extent the
            related Borrower delivers such information to the Master Servicer or
            the Special Servicer and, with respect to operating statements and
            rent rolls for Specially Serviced Trust Mortgage Loans and REO
            Properties, to the extent timely delivered by the Special Servicer
            to the Master Servicer) for the related Mortgaged Property or REO
            Property as of the end of the preceding fiscal year.

                  (B) Commencing with respect to the calendar quarter ending
            June 30, 2005, the Master Servicer shall use its reasonable efforts
            (but shall not be required to institute litigation) to obtain
            quarterly and annual operating statements and rent rolls with
            respect to each of the Trust Mortgage Loans, other than Specially
            Serviced Trust Mortgage Loans, which efforts shall include sending a
            letter to the related Borrower each quarter (followed up with
            telephone calls) requesting such quarterly and annual operating
            statements and rent rolls by no later than 60 days after the subject
            fiscal quarter or 90 days after the subject fiscal year, as
            applicable, to the extent such action is consistent with applicable
            law, the terms of such Trust Mortgage Loans and the Servicing
            Standard. The Master Servicer shall (to the extent not delivered
            pursuant to the preceding paragraph) deliver copies of all of the
            foregoing items so collected to the Special Servicer, the Series
            2005-C1 Directing Certificateholder and any Requesting
            Certificateholder (at the expense of such requesting Holder) and,
            upon request, the Trustee, (x) in the case of quarterly operating
            statements and rent rolls, within the later of (A) 60 days after the
            subject fiscal quarter and (B) 45 days following receipt by the
            Master Servicer of such operating statements and rent rolls (or, if
            received from the Special Servicer, 15 days following such receipt),
            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,
            commencing May 31, 2006, and (B) 45 days following receipt by the
            Master Servicer of such operating statements and rent rolls (or, if
            received from the Special Servicer, 15 days following such receipt).

                  (C) The Master Servicer shall maintain a CMSA Operating
            Statement Analysis Report for each Mortgaged Property (other than
            any such Mortgaged Property which is an REO Property or constitutes
            security for a Specially Serviced Trust Mortgage Loan) that shall be
            prepared or, once prepared, updated by the Master Servicer and
            delivered to the Trustee within 30 days after receipt by the Master
            Servicer of updated operating statements for such Mortgaged
            Property; provided that the Master Servicer shall not be required to
            update the CMSA Operating Statement Analysis Reports more often than
            quarterly or such other longer period as operating statements are
            required to be delivered to the lender by the Borrower pursuant to
            the related Mortgage Loan Documents.

The Special Servicer will be required pursuant to Section 3.12(g) to deliver to
the Master Servicer the information required pursuant to this Section 3.12(f)
with respect to Specially Serviced Trust Mortgage Loans and REO Trust Mortgage
Loans after its receipt of any operating statement or rent rolls for any related
Mortgaged Property or REO Property.

            (g) The Special Servicer shall deliver or cause to be delivered to
the Master Servicer and, upon the request of the Trustee, the Depositor 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 related
Mortgage Loan Documents and have been received by the Special Servicer:

                  (A) Annually, on or before April 30 of each year, commencing
            in April 30, 2005, or as soon thereafter as is reasonably
            practicable based upon when, and the format in which, the Special
            Servicer has received the subject information, with respect to each
            Specially Serviced Trust Mortgage Loan and REO Trust Mortgage Loan,
            a CMSA Operating Statement Analysis Report and CMSA NOI Adjustment
            Worksheet, both in written form and in electronic format reasonably
            acceptable to the Master Servicer, the Special Servicer and the
            Trustee for the related Mortgaged Property or REO Property as of the
            end of the preceding fiscal year (but only to the extent the Special
            Servicer has received such information from the Master Servicer at
            the time of the servicing transfer pursuant to Section 3.21 as is
            necessary to prepare the related CMSA Operating Statement Analysis
            Report and CMSA NOI Adjustment Worksheet on a prospective basis),
            based upon (and accompanied by copies of) the operating statements
            and rent rolls for the related Mortgaged Property or REO Property as
            of the end of the preceding fiscal year.

                  (B) The Special Servicer shall use its reasonable efforts (but
            shall not be required to institute litigation) to obtain quarterly
            and annual operating statements and rent rolls with respect to each
            Mortgaged Property constituting security for a Specially Serviced
            Trust Mortgage Loan, which efforts shall include sending a letter to
            the related Borrower or other appropriate party each quarter
            (followed up with telephone calls) requesting such annual operating
            statements and rent rolls by no later than 60 days after the subject
            fiscal quarter or 90 days after the subject fiscal year, as
            applicable, and shall cause quarterly and annual operating
            statements and rent rolls to be prepared and delivered to it with
            respect to each REO Property within 60 days after each fiscal
            quarter or 90 days after each fiscal year, as applicable. The
            Special Servicer shall (to the extent not delivered pursuant to the
            preceding paragraph) deliver copies of all of the foregoing items so
            collected to the Master Servicer, the Series 2005-C1 Directing
            Certificateholder and any Requesting Certificateholder (at the
            expense of such requesting Holder), and upon request, the Trustee
            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) 20 days following receipt by the Special Servicer 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) 20 days following receipt by
            the Special Servicer of such operating statements and rent rolls.

                  (C) The Special Servicer shall maintain a CMSA Operating
            Statement Analysis Report, both in written form and in electronic
            format reasonably acceptable to the Master Servicer, the Special
            Servicer and the Trustee, for each Mortgaged Property which
            constitutes security for a Specially Serviced Trust Mortgage Loan or
            is an REO Property that shall be prepared or, once prepared, updated
            by the Special Servicer and delivered to the Master Servicer within
            10 days after receipt by the Special Servicer of updated operating
            statements for each such Mortgaged Property; provided that the
            Special Servicer shall not be required to update the CMSA Operating
            Statement Analysis Reports more often than quarterly.

            (h) The Master Servicer's responsibilities under this Section 3.12
with respect to REO Properties and Specially Serviced Trust Mortgage Loans shall
be subject to the satisfaction of the Special Servicer's obligations under this
Section 3.12 and Section 3.21. The information that pertains to Specially
Serviced Trust Mortgage Loans and REO Properties reflected in the reports
referred to in this Section 3.12 shall be based solely upon the reports
delivered by the Special Servicer to the Master Servicer. For the purposes of
the production by the Master Servicer or the Special Servicer of any reports,
documents or information required under this Section 3.12 or under any other
provision of this Agreement, the Master Servicer or the Special Servicer, as the
case may be, may conclusively rely (absent manifest error and 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 such reports, documents or information) on any such reports,
documents or information provided to it by the Depositor, by the related
Mortgage Loan Seller, by the related Borrower or (x) in the case of any such
reports, documents or information produced by the Master Servicer, by the
Special Servicer (if other than the Master Servicer or an Affiliate thereof) and
(y) in the case of any such reports, documents and information produced by the
Special Servicer, by the Master Servicer (if other than the Special Servicer or
an Affiliate thereof). The Trustee shall be entitled to conclusively rely on and
shall not be responsible for the content or accuracy of any reports, documents
or information provided to it by the Master Servicer or the Special Servicer
pursuant to this Agreement, without any duty or obligation to recompute, verify
or recalculate any of the amounts and other information stated therein.

            (i) If the Master Servicer or the Special Servicer is required to
deliver any statement, report or information under any provision of this
Agreement, the Master Servicer or the 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 Master Servicer's internet website,
unless this Agreement expressly specifies a particular method of delivery or
such statement, report or information must be filed with the Commission as
contemplated by Section 3.26; provided, that all reports required to be
delivered to the Trustee shall be delivered in accordance with clause (x) or
(y).

            (j) The Master Servicer shall, with the reasonable cooperation of
the other parties hereto, deliver to each B Loan Holder all documents,
statements, reports and information with respect to the related B Loan and/or
the related Mortgaged Property as may be required under the related
Intercreditor Agreement.

            Section 3.13 Annual Statement as to Compliance

            The Master Servicer and the Special Servicer shall each deliver to
the Trustee, the Rating Agencies, the Depositor, the Series 2005-C1 Directing
Certificateholder and any Junior Loan Holder (at such Junior Loan Holder's
expense) on or before May 1 of each year, beginning in 2006), an Officer's
Certificate of the Master Servicer or Special Servicer stating that, among other
things, to the best of such officer's knowledge, the Master Servicer or Special
Servicer, as the case may be, has fulfilled its obligations under the Pooling
and Servicing Agreement in all material respects throughout the preceding year
(or such shorter period as may be applicable) or, if there has been a material
default, specifying each material default known to such officer, the nature and
status of such default and the action proposed to be taken with respect thereto,
and whether the Master Servicer or the Special Servicer, as the case may be, has
received any notice regarding qualification, or challenging the status, of any
REMIC Pool as a REMIC or the Grantor Trust Pool as a Grantor Trust from the IRS
or any other governmental agency or body (or, if it has received any such
notice, specifying the details thereof); provided that each of the Master
Servicer and Special Servicer shall be required to deliver such Officer's
Certificate by March 15 in 2006 or in any given year thereafter if it has
received written confirmation from the Trustee or the Depositor by January 31 of
that year that an Annual Report on Form 10-K is required to be filed in respect
of the Trust for the preceding calendar year. The Depositor hereby directs the
Trustee to notify, and the Trustee hereby so notifies, the Master Servicer and
the Special Servicer that an Annual Report on Form 10-K shall be required to be
filed with respect to the Trust for 2005. The Trustee shall deliver such
Officer's Certificate, upon request, to any Certificateholder. If the same
entity acts as Master Servicer and Special Servicer, the foregoing may be
delivered as a single certificate.

            Section 3.14 Reports by Independent Public Accountants

            On or before May 1 for each year, beginning in 2006, the Master
Servicer and the Special Servicer (the "reporting person"), each at the
reporting person's expense, shall cause a firm of nationally recognized
Independent public accountants (who may also render other services to the
reporting person) which is a member of the American Institute of Certified
Public Accountants ("AICPA") to furnish a statement (an "Accountant's
Statement") to the Trustee, the Depositor and the Rating Agencies, the Series
2005-C1 Directing Certificateholder and any Junior Loan Holder (at such Junior
Loan Holder's expense) to the effect that such firm has examined certain
documents and records relating to the servicing of the Mortgage Loans and/or
similar mortgage loans under this Agreement and/or similar agreements during the
previous calendar year and that, on the basis of such examination conducted
substantially in compliance with generally accepted auditing standards and the
Uniform Single Attestation Program for Mortgage Bankers or the Audit Program for
Mortgages serviced for FHLMC, such servicing has been conducted during the
previous calendar year in compliance with the minimum servicing standards, to
the extent applicable to multifamily and commercial mortgage loans, identified
in generally accepted auditing standards and the Uniform Single Attestation
Program for Mortgage Bankers or the Audit Program for Mortgages serviced for
FHLMC, in all material respects, except for such significant exceptions or
errors in records that, in the opinion of such firm, generally accepted auditing
standards and the Uniform Single Attestation Program for Mortgage Bankers or the
Audit Program for Mortgages serviced for FHLMC, as applicable, require it to
report, in which case such exceptions and errors shall be so reported; provided
that the Master Servicer and Special Servicer shall be required to cause the
delivery of its Accountant's Statement by March 15 in 2006 or in any given year
thereafter if it has received written confirmation from the Trustee or the
Depositor by January 31 of that year that a Report on Form 10-K is required to
be filed in respect of the Trust for the preceding calendar year. The Depositor
hereby directs the Trustee to notify, and the Trustee hereby so notifies, the
Master Servicer and the Special Servicer that an Annual Report on Form 10-K
shall be required to be filed with respect to the Trust for 2005.

            Each reporting person shall obtain from the related accountants, or
shall prepare, an electronic version of each Accountant's Statement and provide
such electronic version to the Trustee for filing in accordance with the
procedures set forth in Section 3.26 hereof. In rendering such statement, such
firm may rely, as to matters relating to direct servicing of mortgage loans by
Sub-Servicers, upon comparable statements for examinations conducted
substantially in compliance with the Uniform Single Attestation Program for
Mortgage Bankers (rendered within one year of such statement) of independent
public accountants with respect to the related Sub-Servicer.

            Section 3.15 Access to Certain Information

            (a) Each of the Master Servicer and the Special Servicer shall
provide reasonable access during its normal business hours at each of its
principal servicing offices to any Certificateholder, Certificate Owner or
holder of a security backed by a B Loan that is, or is affiliated with, a
federally insured financial institution, the Trustee, the Depositor, each Rating
Agency, to the Master Servicer or to the Special Servicer, as applicable, 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, Certificate Owner or holder of a security backed by a B Loan,
access to any documentation regarding the Mortgage Loans and the Trust Fund (or,
in the case of a holder of a security backed by a B Loan, regarding such B Loan)
within its control which may be required by this Agreement or by applicable law.

            Such access shall be afforded without charge (except that the Master
Servicer and the 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 Master Servicer or the Special Servicer, as the case may be, designated
by it. The Master Servicer and Special Servicer may satisfy any obligation or
request to provide information or copies of any reports or documents described
in this Section 3.15 by (x) physically delivering a paper copy of such
information, reports or documents, (y) delivering such information, reports or
documents in a commonly used electronic format or (z) making such information,
reports or documents available on its Website; provided, that all reports
required to be delivered to the Trustee shall be delivered in accordance with
clause (x) or (y).

            Nothing in this Section 3.15 shall detract from the obligation of
the Master Servicer and the Special Servicer to observe any applicable law or
agreement prohibiting disclosure of information with respect to the Borrowers,
and the failure of the Master Servicer or the 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 the Master Servicer or Special Servicer to confirm, represent or warrant
the accuracy or completeness of any other Person's information or report,
including any communication from the Master Servicer, the Special Servicer, a
Borrower or any other Person. Notwithstanding the above, the Master Servicer and
Special Servicer shall not have any liability to the Depositor, the Trustee, any
Certificateholder, any Certificate Owner, the Initial Purchaser, any
Underwriter, any Rating Agency or any other Person to whom it 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, unless the Master
Servicer or Special Servicer, as the case may be, acted with negligence, bad
faith or willful misfeasance. The Master Servicer and the Special Servicer may
each deny any of the foregoing Persons access to confidential information or any
intellectual property which the Master Servicer or the Special Servicer is
restricted by license or contract from disclosing. Notwithstanding the
foregoing, the Master Servicer and the Special Servicer shall maintain separate
from such confidential information and intellectual property, all documentation
regarding the Mortgage Loans and REO Properties that is not confidential.

            (b) The Master Servicer and the Special Servicer may, in accordance
with such reasonable rules and procedures as it may adopt, also make available
through its Website or otherwise, any additional information relating to the
Trust Mortgage Loans, the Mortgaged Properties or the Borrowers, for review by
the Depositor, the Rating Agencies and any other Persons to whom the Master
Servicer or the Special Servicer believes such disclosure is appropriate, in
each case except to the extent doing so is prohibited by applicable law or by
the related Trust Mortgage Loan.

            (c) The Master Servicer and the Special Servicer shall make the
following items available at their respective offices during normal business
hours, for review by the Depositor, the Trustee, any B Loan Holder (or its
designee), the Rating Agencies, any Certificateholder, any Certificate Owner,
any prospective transferee of a Certificate or an interest therein (or any
licensed or registered investment adviser acting on its behalf) and any other
Persons to whom the Master Servicer or the Special Servicer, as applicable,
believes such disclosure to be appropriate, or shall send such items to any
requesting party (at the expense of such requesting party, except in the case of
the Series 2005-C1 Directing Certificateholder (so long as the requests are not
excessive or duplicative), any B Loan Holder (or its designee) (so long as the
requests are not excessive or duplicative), the Trustee and the Rating Agencies,
and except as otherwise provided in the last sentence of this paragraph): (i)
all financial statements, occupancy information, rent rolls, retail sales
information, average daily room rates and similar information received from the
respective Borrowers or otherwise obtained by the Master Servicer or the Special
Servicer, as applicable, (ii) the inspection reports prepared by or on behalf of
the Master Servicer or the Special Servicer, as applicable, with respect to the
respective Mortgaged Properties in connection with the property inspections
pursuant to Section 3.19, (iii) any appraisals and/or internal valuations
prepared by or on behalf of the Master Servicer or the Special Servicer, as
applicable, with respect to the respective Mortgaged Properties in accordance
with this Agreement, (iv) any and all modifications, waivers and amendments of
the terms of a Trust Mortgage Loan entered into by the Master Servicer or the
Special Servicer, as applicable, and (v) any and all officer's certificates and
other evidence delivered to the Trustee and the Depositor to support the Master
Servicer's determination that any Advance was, or if made would be, a
Nonrecoverable Advance. Copies of all such information shall be delivered by the
Master Servicer or the Special Servicer, as applicable, upon request, not more
frequently than quarterly to the Certificateholders (or, if the Controlling
Class of Certificates is held in book-entry form, the Certificate Owners) of the
Controlling Class (as identified by the related Depository Participant and for
so long as such Class remains outstanding) at the address specified by such
Certificate Owners; provided, however, that if beneficial ownership of the
Controlling Class resides in more than one Certificateholder or Certificate
Owner, as applicable, the Master Servicer or the Special Servicer, as
applicable, shall be responsible only for the expense of providing the first
such copy of such information and shall be entitled to reimbursement from the
requesting party for the expense of any additional copies so provided.

            (d) With respect to any information furnished by the Master Servicer
or the Special Servicer pursuant to the foregoing provisions of this Section
3.15, the Master Servicer or the Special Servicer, as the case may be, shall be
entitled to (i) indicate the source of such information and affix thereto any
disclaimer it deems appropriate in its discretion and/or (ii) require that the
recipient of such information acknowledge that the Master Servicer or the
Special Servicer may contemporaneously provide such information to the
Depositor, the Trustee, the Initial Purchaser, any Underwriter, any Rating
Agency and/or Certificateholders or Certificate Owners. Without limiting the
foregoing, in connection with providing access to or copies of the items
described above in this Section 3.15 to Certificateholders, Certificate Owners,
the Series 2005-C1 Directing Certificateholder, prospective purchasers of
Certificates or interests therein, a licensed or registered investment advisor
acting on behalf of any of the foregoing, the Master Servicer or the Special
Servicer, as the case may be, shall require: (i) in the case of
Certificateholders, Certificate Owners and the Series 2005-C1 Directing
Certificateholder (or licensed or registered investment advisors acting on their
behalf), a confirmation executed by the requesting Person (and its investment
advisor, if applicable) substantially in the form of Exhibit S-1 hereto (or such
other form as may be reasonably acceptable to the Master Servicer or Special
Servicer, as applicable, and which may provide indemnification to the Master
Servicer or Special Servicer, 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 a licensed or registered investment advisor
representing such Person, confirmation executed by the requesting Person (and
its investment advisor, if applicable) substantially in the form of Exhibit S-2
hereto (or such other form as may be reasonably acceptable to the Master
Servicer or Special Servicer, as applicable, and which may provide
indemnification to the Master Servicer or Special Servicer, as applicable),
generally to the effect that such Person is a prospective purchaser of a
Certificate or an interest therein or a licensed or registered 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. Neither the Master Servicer nor the Special
Servicer shall be liable for the dissemination of information in accordance with
this Agreement.

            (e) Any transmittal of information by the Master Servicer or Special
Servicer to any Person other than the Trustee, the Rating Agencies or the
Depositor may be accompanied by a letter from the Master Servicer or Special
Servicer 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 2005-C1 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 (or licensed or registered investment advisor
            acting on their behalf) of such Certificates or beneficial interest
            therein."

            (f) Notwithstanding anything in this Agreement to the contrary, the
Master Servicer and the Special Servicer may withhold any information not yet
included in a Current Report on Form 8-K filed with the Commission or otherwise
made publicly available with respect to which the Trustee, the Special Servicer
or the Master Servicer has determined that such withholding is appropriate in
accordance with applicable law.

            (g) Except as otherwise required by this Agreement and except for
statements, reports and information to be filed with the Commission as
contemplated by Section 3.26, the Master Servicer and the Special Servicer each
may, in its discretion, make available by hard copy, electronic media, internet
website or bulletin board service certain information and may make available by
hard copy, electronic media, internet website or bulletin board service any
reports or information that the Master Servicer or the Special Servicer is
required by this Agreement to provide to any of the Rating Agencies, the
Trustee, the Depositor and anyone the Depositor reasonably designates.

            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, if such REO Property relates to a Mortgage Loan
Combination, on behalf of the related B Loan Holder. The Special Servicer, on
behalf of the Trust and, if such REO Property relates to a Mortgage Loan
Combination, on behalf of the related B Loan Holder, shall sell any REO Property
in accordance with Section 3.18 by the end of the third calendar year following
the year in which the Trust acquires ownership of such REO Property for purposes
of Section 860G(a)(8) of the Code, unless the Special Servicer either (i)
applies, more than 60 days prior to the expiration of such liquidation period,
for and is granted an extension of time (an "REO Extension") by the IRS to sell
such REO Property or (ii) obtains for the Trustee an Opinion of Counsel,
addressed to the Trustee, to the effect that the holding by the Trust of such
REO Property subsequent to the end of the third calendar year following the year
in which such acquisition occurred will not result in an Adverse REMIC Event
with respect to any REMIC Pool or an Adverse Grantor Trust Event with respect to
the Grantor Trust Pool. Regardless of whether the Special Servicer applies for
or is granted the REO Extension contemplated by clause (i) of the immediately
preceding sentence or obtains the Opinion of Counsel referred to in clause (ii)
of such sentence, the Special Servicer shall act in accordance with the
Servicing Standard to liquidate the subject REO Property on a timely basis. If
the Special Servicer is granted such REO Extension or obtains such Opinion of
Counsel with respect to any REO Property, the Special Servicer shall (i)
promptly forward a copy of such REO Extension or Opinion of Counsel to the
Trustee, and (ii) sell such REO Property within such extended period as is
permitted by such REO Extension or contemplated by such Opinion of Counsel, as
the case may be. Any expense incurred by the Special Servicer in connection with
its applying for and being granted the REO Extension contemplated by clause (i)
of the third preceding sentence or its obtaining the Opinion of Counsel
contemplated by clause (ii) above shall be an expense of the Trust Fund (or, if
applicable, the Trust Fund and any affected B Loan Holder) payable out of the
Collection Account pursuant to Section 3.05 (or, if applicable, out of the
related Mortgage Loan Combination Custodial Account pursuant to Section 3.04).

            (b) The Special Servicer shall segregate and hold all funds
collected and received by it in connection with any REO Property separate and
apart from its own funds and general assets. If title to any REO Property is
acquired by or on behalf of the Trust (or, if such REO Property relates to a
Mortgage Loan Combination, on behalf of the Trust Fund and the related B Loan
Holder), then the Special Servicer shall establish and maintain one or more
accounts (collectively, the "REO Account"), to be held on behalf of the Trustee
in trust for the benefit of the Certificateholders (and any affected B Loan
Holder), for the retention of revenues and other proceeds derived from such REO
Property. Each account that constitutes an REO Account shall be an Eligible
Account. The Special Servicer shall deposit, or cause to be deposited, in the
REO Account, within one Business Day following receipt, all REO Revenues,
Insurance and Condemnation Proceeds and Liquidation Proceeds received in respect
of an REO Property. Funds in the REO Account may be invested in Permitted
Investments in accordance with Section 3.06. The Special Servicer shall be
entitled to make withdrawals from the REO Account to pay itself, as additional
special servicing compensation, interest and investment income earned in respect
of amounts held in the REO Account as provided in Section 3.06(b) (but only to
the extent of the Net Investment Earnings, if any, with respect to the REO
Account for any Collection Period). The Special Servicer shall give notice to
the other parties hereto of the location of the REO Account when first
established and of the new location of the REO Account prior to any change
thereof.

            (c) The Special Servicer shall withdraw from the 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
the REO Account relating to such REO Property. On the first Business Day
following each Determination Date, the Special Servicer shall withdraw from the
REO Account and deposit into the Collection Account (or, if the subject REO
Property relates to a Mortgage Loan Combination, into the related Mortgage Loan
Combination Custodial Account), or deliver to the Master Servicer for deposit
into the Collection Account (or, if the subject REO Property relates to a
Mortgage Loan Combination, into the related Mortgage Loan Combination Custodial
Account), the aggregate of all amounts received in respect of each REO Property
during the Collection Period ending on such Determination Date that are then on
deposit in the REO Account, net of any withdrawals made out of such amounts
pursuant to the preceding sentence; provided that, in the case of each REO
Property, the Special Servicer may retain in the REO Account such portion of
such proceeds and collections as may be necessary to maintain a reserve of
sufficient funds for the proper operation, management, leasing, maintenance and
disposition of such REO Property (including the creation of a reasonable reserve
for repairs, replacements, necessary capital improvements and other related
expenses), such reserve not to exceed an amount sufficient to cover such items
reasonably expected to be incurred during the following 12-month period.

            (d) The 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, the REO Account pursuant to Section 3.16(b) or
3.16(c).

            Section 3.17 Management of REO Property

            (a) Prior to the acquisition of title to any Mortgaged Property
securing a defaulted Mortgage Loan, the Special Servicer shall review the
operation of such Mortgaged Property and determine the nature of the income that
would be derived from such property if it were acquired by the Trust. If the
Special Servicer determines from such review that:

            (i) None of the income from Directly Operating such Mortgaged
      Property would be subject to tax as "net income from foreclosure property"
      within the meaning of the REMIC Provisions or to the tax imposed on
      "prohibited transactions" under Section 860F of the Code (either such tax
      referred to herein as an "REO Tax"), then such Mortgaged Property may be
      Directly Operated by the Special Servicer as REO Property; provided that
      an Independent Contractor shall be required for holding such REO Property
      for sale to customers in the ordinary course of a trade or business or
      performing construction work on such REO Property;

            (ii) Directly Operating such Mortgaged Property as an REO Property
      could result in income from such property that would be subject to an REO
      Tax, but that a lease of such property to another party to operate such
      property, or the performance of some services by an Independent Contractor
      with respect to such property, or another method of operating such
      property would not result in income subject to an REO Tax, then the
      Special Servicer may (provided that in the judgment of the Special
      Servicer, exercised in accordance with the Servicing Standard, it is
      commercially reasonable) so lease or otherwise operate such REO Property;
      or

            (iii) It is reasonable to believe that Directly Operating such
      property as REO Property could result in income subject to an REO Tax and
      that no commercially reasonable means exists to operate such property as
      REO Property without the Trust incurring or possibly incurring an REO Tax
      on income from such property, then the Special Servicer shall deliver to
      the Trustee and to the Series 2005-C1 Directing Certificateholder, in
      writing, a proposed plan (the "Proposed Plan") to manage such property as
      REO Property. Such plan shall include potential sources of income and good
      faith estimates of the amount of income from each such source. Within a
      reasonable period of time after receipt of such plan, the Trustee shall
      consult with the Special Servicer and shall advise the Special Servicer of
      the Trust's federal income tax reporting position with respect to the
      various sources of income that the Trust would derive under the Proposed
      Plan. In addition, the Trustee shall (to the maximum extent reasonably
      possible) advise the Special Servicer of the estimated amount of taxes
      that the Trust would be required to pay with respect to each such source
      of income. After receiving the information described in the two preceding
      sentences from the Trustee, the Special Servicer shall either (A)
      implement the Proposed Plan (after acquiring the respective Mortgaged
      Property as REO Property) or (B) manage and operate such property in a
      manner that would not result in the imposition of an REO Tax on the income
      derived from such property.

            Subject to Section 3.17(b), the Special Servicer's decision as to
how each REO Property shall be managed and operated shall be in accordance with
the Servicing Standard. Neither the Special Servicer nor the Trustee shall be
liable to the Certificateholders, the Trust, the other parties hereto, any
affected B Loan Holder or each other for errors in judgment made in good faith
in the exercise of their discretion while performing their respective
responsibilities under this Section 3.17(a) with respect to any REO Property.
Nothing in this Section 3.17(a) is intended to prevent the sale of any REO
Property pursuant to the terms and subject to the conditions of Section 3.18.

            (b) If title to any REO Property is acquired, the Special Servicer
shall manage, conserve, protect, operate and lease such REO Property for the
benefit of the Certificateholders (or, if such REO Property relates to a
Mortgage Loan Combination, for the benefit of the Certificateholders and the
related B Loan Holder) solely for the purpose of its prompt disposition and sale
in accordance with Section 3.18, 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, except as contemplated by Section 3.17(a),
result in the receipt by any REMIC Pool of any "income from non-permitted
assets" within the meaning of Section 860F(a)(2)(B) of the Code, in an Adverse
REMIC Event with respect to any REMIC Pool or in an Adverse Grantor Trust Event
with respect to the Grantor Trust Pool. Subject to the foregoing, however, the
Special Servicer shall have full power and authority to do any and all things in
connection with the administration of any REO Property as are consistent with
the Servicing Standard, and consistent therewith, shall withdraw from the 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:

            (i) all insurance 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 other costs and expenses necessary to maintain, lease,
      sell, protect, manage, operate and restore such REO Property.

To the extent that amounts on deposit in the REO Account with respect to any REO
Property are insufficient for the purposes contemplated by the preceding
sentence with respect to such REO Property, the Master Servicer shall, at the
direction of the Special Servicer in accordance with Section 3.03(c), make a
Servicing Advance of such amounts as are necessary for such purposes unless the
Master Servicer determines, in its reasonable judgment, that such advances
would, if made, be Nonrecoverable Servicing Advances (in accordance with and
subject to the third to the last paragraph of Section 3.03(c)); provided,
however, that the Master Servicer may in its sole discretion make any such
Servicing Advance without regard to recoverability if it is a necessary fee or
expense incurred in connection with the defense or prosecution of legal
proceedings.

            (c) Without limiting the generality of the foregoing, the 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 Mortgage Loan became imminent, all within
      the meaning of Section 856(e)(4)(B) of the Code; or

            (iv) except as provided for in Section 3.17(a)(i) and (a)(ii) above,
      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 Special Servicer has obtained an Opinion of
Counsel (the cost of which shall be paid by the 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 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(d), the Special Servicer shall be permitted to cause
the Trust Fund to earn "net income from foreclosure property", subject to the
Servicing Standard.

            (d) Except as permitted by Section 3.17(a), Special Servicer shall
contract with any Independent Contractor for the operation and management of any
REO Property; 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
      expenses of the Trust 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, in a timely manner, (A) pay all
      costs and expenses incurred in connection with the operation and
      management of such REO Property, including those listed in Section 3.17(b)
      above, and (B) remit all related revenues collected (net of its fees and
      such costs and expenses) to the Special Servicer upon receipt;

            (iv) none of the provisions of this Section 3.17(d) relating to any
      such contract or to actions taken through any such Independent Contractor
      shall be deemed to relieve the 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 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.

The 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 the Special Servicer by such
Independent Contractor, and nothing in this Agreement shall be deemed to limit
or modify such indemnification. To the extent the costs of any contract with any
Independent Contractor for the operation and management of any REO Property are
greater that the revenues available from such property, such excess costs shall
be covered by, and be reimbursable to, the Master Servicer as a Servicing
Advance.

            Section 3.18 Fair Value Purchase Option; Sale of REO Properties

            (a) Each of the Master Servicer, the Special Servicer or the Trustee
may sell or purchase, or permit the sale or purchase of, a Trust Mortgage Loan
or REO Property only 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), Section 3.31, Section 3.32, Section 9.01, the related Mortgage
Loan Documents and/or any related intercreditor, co-lender and/or similar
agreement(s).

            (b) If any Trust Mortgage Loan becomes a Defaulted Trust Mortgage
Loan, then the Special Servicer shall promptly so notify in writing the Trustee,
the Master Servicer and the Series 2005-C1 Directing Certificateholder, and with
respect to any related Junior Loan of a Serviced Loan Combination, any related
Junior Loan Holder(s). The Series 2005-C1 Directing Certificateholder may, at
its option, purchase any Defaulted Trust Mortgage Loan out of the Trust Fund at
a cash price equal to the applicable Purchase Price. The Series 2005-C1
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 party (including, without limitation, in connection with an A
Loan, any related Junior Loan Holder); provided that the Series 2005-C1
Directing Certificateholder, in connection therewith, shall deliver to the
Trustee and the Special Servicer a copy of the related written assignment
executed by the Series 2005-C1 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 the rights of the holder of the related Junior Loan to
purchase such A Loan pursuant to the terms of a related Intercreditor Agreement
or by a Mezzanine Loan Holder 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 by the holder of the related Junior Loan
pursuant to the related Intercreditor Agreement or by a Mezzanine Loan Holder
pursuant to the related Mezzanine Loan intercreditor agreement. The applicable
Purchase Price for any Defaulted Trust Mortgage Loan purchased under this
Section 3.18(b) shall be deposited into the Collection Account, and the Trustee,
upon receipt of an Officer's Certificate from the Master Servicer to the effect
that such deposit has been made, shall release or cause to be released to the
Person effecting such purchase (or to its 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 the Person effecting such purchase (or its designee)
ownership of such Trust Mortgage Loan. In connection with any such purchase, the
Special Servicer shall deliver the related Servicing File to the Person
effecting such purchase (or to its designee).

            If not exercised sooner, such purchase option with respect to any
Defaulted Trust Mortgage Loan will automatically terminate upon (i) the related
Borrower's (or, subject to the related Intercreditor Agreement, any Junior Loan
Holder's) cure of all defaults on the Defaulted Trust Mortgage Loan, (ii) the
acquisition on behalf of the Trust 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 Trust Mortgage Loan in connection
with a workout.

            The applicable Purchase Price for any Defaulted Trust Mortgage Loan
purchased under this Section 3.18(b) 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 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 Special Servicer's judgment
would materially affect the validity of such Appraisal), and shall, within 60
days following the date on which a Trust Mortgage Loan becomes a Defaulted Trust
Mortgage Loan, determine the fair value thereof in accordance with the Servicing
Standard (the "Fair Value"). In determining the Fair Value of any Defaulted
Trust Mortgage Loan the Special Servicer shall take into account, among other
factors, the period and amount of the delinquency on such Trust Mortgage 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 time and expense associated with a purchaser's foreclosing on the
related Mortgaged Property, and the expected recoveries from such Defaulted
Trust Mortgage Loan if the Special Servicer were to pursue a workout or
foreclosure strategy instead of selling such Defaulted Trust Mortgage Loan
pursuant to the subject purchase option. In addition, the 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 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 Special Servicer must give prompt written notice of its
Fair Value determination to the Trustee, the Master Servicer and the Series
2005-C1 Directing Certificateholder.

            The Special Servicer shall be required to change from time to time
thereafter its determination of the Fair Value of a Defaulted Trust Mortgage
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 Special
Servicer shall confirm or revise the Fair Value determination, which Fair Value
may be higher or lower.

            In the event that the Special Servicer or any affiliate of the
Special Servicer exercises the purchase option (under this Section 3.18(b) or
Section 3.18(c)) with respect to any Defaulted Trust Mortgage Loan, including as
the Series 2005-C1 Directing Certificateholder or as the assignee thereof, then
the Master Servicer or, if the Master Servicer is also the Special Servicer or
an affiliate of the Special Servicer, the Trustee shall determine whether the
Special Servicer's determination of Fair Value for a Defaulted Trust Mortgage
Loan is no less than the amount that the Master Servicer or the Trustee, as
applicable, considers to be the Fair Value of such Defaulted Trust Mortgage
Loan. In such event, the Special Servicer shall promptly deliver to the Master
Servicer or the Trustee, as applicable, in accordance with the foregoing
sentence, the most recent related Appraisal then in the Special Servicer's
possession, together with such other third-party reports and other information
then in the Special Servicer's possession that is relevant to the confirmation
of the Special Servicer's determination of Fair Value, including information
regarding any change in circumstance regarding the Defaulted Trust Mortgage Loan
known to the Special Servicer that has occurred subsequent to, and that would
materially affect the value of the related Mortgaged Property reflected in, the
most recent related Appraisal. Notwithstanding the foregoing, and if the Special
Servicer has not already done so, the Master Servicer or the Trustee, as the
case may be, may (at its option) designate an Independent Qualified Appraiser,
selected with reasonable care by the Master Servicer or the Trustee, as the case
may be, to confirm that the Special Servicer's determination of Fair Value is
consistent with or greater than what the Independent Qualified Appraiser
considers to be the Fair Value of such Defaulted Trust Mortgage Loan. In that
event, the Master Servicer or Trustee, as applicable, will be entitled to rely
upon such Independent Qualified Appraiser's determination. The Master Servicer
or Trustee, as applicable, shall be entitled to a fee of $1,500 in connection
with each such Fair Value determination. The costs of all third party opinions
of value and any Appraisals and inspection reports incurred by the Master
Servicer or Trustee, as the case may be, as contemplated by this paragraph shall
be advanced by the Master Servicer or Trustee, as the case may be, and will
constitute, and be reimbursable as, a Servicing Advance.

            Unless and until the purchase option granted hereunder with respect
to a Defaulted Trust Mortgage Loan is exercised, the Special Servicer will be
required to pursue such other resolution strategies available hereunder,
including workout and foreclosure, consistent with the Servicing Standard, but
the Special Servicer will not be permitted to sell the Defaulted Trust Mortgage
Loan other than pursuant to the exercise of such purchase option or as otherwise
permitted under Section 3.18(a).

            (c) If the Series 2005-C1 Directing Certificateholder or an assignee
thereof has not purchased any Defaulted Trust Mortgage Loan as provided in
Section 3.18(b) within 15 days of the Series 2005-C1 Directing
Certificateholder's having received notice that the subject Trust Mortgage Loan
has become a Defaulted Trust Mortgage Loan pursuant to Section 3.18(b), then the
Trustee shall within five days of the end of such 15-day period send notice to
the Special Servicer that such Trust Mortgage Loan was not purchased by the
Series 2005-C1 Directing Certificateholder or its assignee, and the Special
Servicer may, at its option, within 15 days after receipt of such notice,
purchase (or designate an Affiliate thereof to purchase) such Trust Mortgage
Loan out of the Trust Fund at a cash price equal to the Purchase Price. In
addition, if the Series 2005-C1 Directing Certificateholder or an assignee
thereof has not purchased any Defaulted Trust Mortgage Loan provided in Section
3.18(b) within 15 days of the Series 2005-C1 Directing Certificateholder's
having received notice of any calculation or updated calculation of Fair Value
pursuant to Section 3.18(b), then the Trustee shall within five days of the end
of such 15-day period send notice to the Special Servicer that such Trust
Mortgage Loan was not purchased by the Series 2005-C1 Directing
Certificateholder or its assignee, and the Special Servicer may, at its option,
within 15 days after receipt of such notice, purchase (or designate an Affiliate
thereof to purchase) such Trust Mortgage Loan out of the Trust Fund at a cash
price equal to the Fair Value. The cash price paid for any such Trust Mortgage
Loan purchased under this Section 3.18(c) shall be deposited into the Collection
Account, and the Trustee, upon receipt of an Officer's Certificate from the
Master Servicer to the effect that such deposit has been made, shall release or
cause to be released to the 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
Special Servicer (or the designated Affiliate thereof), as applicable, the
ownership of such Trust Mortgage Loan. Nothing in this Section 3.18(c) shall be
deemed to limit the ability of any Junior Loan Holder to purchase the related A
loan in accordance with the related Intercreditor Agreement.

            (d) The 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 as soon as reasonably possible and, in any event, within
the time period provided for by Section 3.16(a). Such solicitation shall be made
in a commercially reasonable manner. The 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 Special Servicer shall accept the highest cash bid
received from any Person that is determined by the Special Servicer to be a fair
price for such REO Property. If the 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 Special Servicer shall dispose
of such REO Property upon such terms and conditions as the 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 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 and, if the subject REO
Property relates to a Mortgage Loan Combination, the related B Loan Holder, 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 Special Servicer shall
seek an extension of such period in the manner described in Section 3.16(a);
provided, however, that the 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 Special Servicer shall give the Trustee, the Master Servicer and
any affected B Loan Holder 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 Special
Servicer, if the highest bidder is a Person other than the Special Servicer or
an Affiliate thereof, and by the Master Servicer, if the highest bidder is the
Special Servicer or an Affiliate thereof. In determining whether any bid
received from the Special Servicer or an Affiliate thereof represents a fair
price for any REO Property, the Special Servicer and the Master Servicer shall
obtain and may conclusively rely on the opinion of an Appraiser retained at the
expense of the Trust Fund (and/or any affected B Loan Holder) by (i) the Master
Servicer, if the highest bidder is the Special Servicer or an Affiliate thereof
or (ii) the 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
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 Special Servicer
shall act on behalf of the Trustee and, in the case of any Serviced Loan
Combination, the related 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, the
Trust Fund or any affected B Loan Holder, except, in the case of the Trust Fund,
as shall be customary in deeds of real property, and if such sale is consummated
in accordance with the terms of this Agreement, neither the Special Servicer nor
the Master Servicer shall have any liability to any Certificateholder and, with
respect to any Serviced Loan Combination, to any Junior Loan Holder, with
respect to the purchase price therefor accepted by the Special Servicer or the
Master Servicer.

            (f) Any sale of any Defaulted Trust Mortgage 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 Trust Mortgage Loan, then the purchase price paid by such Mezzanine Loan
Holder for such Trust Mortgage 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 Trust Mortgage Loan in such Mezzanine Loan
Holder.

            Section 3.19 Additional Obligations of the Master Servicer and
Special Servicer; Inspections; Appraisals

            (a) The Master Servicer (or, with respect to each Specially Serviced
Trust Mortgage Loan and REO Property and each Trust Mortgage Loan described in
Section 3.19(c) below, the 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 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 $2,500,000 at least
once every 12 months and (B) with a Stated Principal Balance of less than
$2,500,000 at least once every 24 months, in each case commencing in 2006 (or at
such lesser frequency as each Rating Agency shall have confirmed in writing to
the Master Servicer, will not result a downgrade, qualification or withdrawal of
the then-current ratings assigned to any Class of the Certificates) and (C) if
the Trust Mortgage Loan becomes a Specially Serviced Trust Mortgage Loan, as
soon as practicable and thereafter at least once every 12 months for so long as
such condition exists. The Master Servicer or Special Servicer, as applicable,
shall send each inspection report (i) to Fitch and/or Moody's, upon request,
(ii) to the Series 2005-C1 Directing Certificateholder and any Requesting
Subordinate Certificateholder (at the expense of such Requesting Subordinate
Certificateholder), (iii) if the subject Mortgaged Property relates to a
Mortgage Loan Combination, to the related B Loan Holder and (iv) to the Trustee
upon request. At the request of any Certificateholder or Certificate Owner, the
Trustee shall request a copy of the relevant inspection report(s) and deliver
the same to such Certificateholder or Certificate Owner, as the case may be.

            (b) With respect to each Mortgage 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 the related Mortgage Loan
Documents, the Special Servicer may enforce the Trustee's rights with respect to
the Manager under the related Mortgage Loan Documents and Management Agreement;
provided that, if such right accrues under the related Mortgage Loan Documents
or Management Agreement only because of the occurrence of the related
Anticipated Repayment Date, if any, the Special Servicer may in its sole
discretion, in accordance with the Servicing Standard, waive such right with
respect to such date. If the Special Servicer is entitled to terminate the
Manager, the Special Servicer shall promptly give notice to the Series 2005-C1
Directing Certificateholder, to each Rating Agency and, with respect to any
Serviced Loan Combination, to the related Junior Loan Holder(s). In accordance
with the Servicing Standard, the Special Servicer shall cause the Borrower to
terminate the Manager, and to recommend a Successor Manager (meeting the
requirements set forth below) only if the Special Servicer determines in its
reasonable discretion that such termination is not likely to result in
successful litigation against the Trust Fund and any affected B Loan Holder by
such Manager or the related Borrower, or create a defense to the enforcement of
remedies under the subject Mortgage Loan.

            The Special Servicer shall effect such termination only if the
Special Servicer has, in the case of any Specially Serviced Trust Mortgage Loan
that is a Significant Trust Mortgage 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 Mortgage Loan Documents or Management Agreement and
the related Borrower does not appoint a Successor Manager, the 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 by the Special Servicer. For the purposes of this Section
3.19(b), a "Successor Manager" shall be a professional management corporation or
business entity reasonably acceptable to the Special Servicer which (i) manages,
and is experienced in managing, other comparable commercial and/or multifamily
properties, (ii) in the case of a Significant Trust Mortgage Loan, will not
result in a downgrade, qualification or withdrawal of the 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 related
Mortgage Loan Documents.

            (c) The Special Servicer shall be required to obtain any Appraisal
required in connection with an Appraisal Reduction Event or perform an internal
valuation within 60 days after the occurrence of such Appraisal Reduction Event,
the cost of which shall be paid by the Master Servicer as a Servicing Advance;
provided that in no event shall the period to receive such Appraisal or perform
such internal valuation exceed 120 days from the occurrence of the event that,
with the passage of time, would become such Appraisal Reduction Event. Upon
receipt, the Special Servicer shall send a copy of such Appraisal or internal
valuation to the Trustee, the Master Servicer, any affected B Loan Holder, the
Certificateholders (or, if the Controlling Class of Certificates is held in
book-entry form, the Certificate Owners) of the Controlling Class and any
Requesting Subordinate Certificateholder (at the expense of such Requesting
Subordinate Certificateholder); provided, however, that as to each such
Appraisal or internal valuation, if beneficial ownership of the Controlling
Class resides in more than one Certificateholder or Certificate Owner, as the
case may be, the Special Servicer shall be responsible only for the expense of
providing the first such copy thereof and shall be entitled to reimbursement
from the Trust Fund for the expense of any additional copies so provided. If
neither a required Appraisal is received, nor an internal valuation is
completed, by such date, the Appraisal Reduction Amount for such Trust Mortgage
Loan shall be conclusively established to be 25% of the Stated Principal Balance
of such Trust Mortgage Loan as of the date of the related Appraisal Reduction
Event; provided that the obligation of the 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, the Special Servicer shall calculate and report to the Master
Servicer and the Trustee, the Appraisal Reduction Amount taking into account
such Appraisal or internal valuation. The Master Servicer shall conclusively
rely on any report by the Special Servicer of an initial or redetermined
Appraisal Reduction Amount. Notwithstanding the foregoing, the Special Servicer
will not be required to obtain an Appraisal or perform an internal valuation, as
the case may be, under this Section 3.19(c) with respect to a Trust Mortgage
Loan which is the subject of an Appraisal Reduction Event if the 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 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 Special
Servicer may use such prior Appraisal in calculating any Appraisal Reduction
Amount with respect to such Trust Mortgage Loan.

            (d) With respect to each Mortgage Loan as to which an Appraisal
Reduction Event has occurred (unless such Mortgage Loan has become a Corrected
Mortgage Loan and has remained current for twelve consecutive Monthly Payments
for such purposes, taking into account any amendment or modification of such
Mortgage Loan, and no other Servicing Transfer Event or Appraisal Reduction
Event has occurred and is continuing with respect thereto), the 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 Mortgage 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 Master
Servicer as a Servicing Advance. Upon receipt, the Special Servicer shall send a
copy of such Appraisal to the Trustee, the Master Servicer, each affected B Loan
Holder (if any), the Certificateholders (or, if the Controlling Class of
Certificates is held in book-entry form, the Certificate Owners) of the
Controlling Class and any Requesting Subordinate Certificateholder (at the
expense of such Requesting Subordinate Certificateholder); provided, however,
that as to each such Appraisal, if beneficial ownership of the Controlling Class
resides in more than one Certificateholder or Certificate Owner, as the case may
be, the Special Servicer shall be responsible only for the expense of providing
the first such copy thereof and shall be entitled to reimbursement from the
Trust Fund for the expense of any additional copies so provided. 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, the Special Servicer shall calculate and report to the Master
Servicer and the Trustee, the Appraisal Reduction Amount taking into account
such Appraisal or internal valuation. Such Appraisal or internal valuation or
calculation of the Appraisal Reduction described in the preceding sentence, as
the case may be, shall be used to determine monthly the amount of the Appraisal
Reduction Amount with respect to the subject Mortgage Loan for each Distribution
Date 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 such Mortgage Loan.

            With respect to each Mortgage Loan as to which an Appraisal
Reduction Event has occurred and which has become a Corrected Mortgage Loan and
has remained current for twelve consecutive Monthly Payments, taking into
account any amendment or modification of such Mortgage Loan, and with respect to
which no other Servicing Transfer Event or Appraisal Reduction Event has
occurred and is continuing, the 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 Mortgage 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 Master Servicer as a Servicing Advance. Based upon such
Appraisal or internal valuation, the Special Servicer shall redetermine and
report to the Trustee and the Master Servicer the amount of the Appraisal
Reduction with respect to such Mortgage Loan and such redetermined Appraisal
Reduction shall replace the prior Appraisal Reduction Amount with respect to
such Mortgage Loan.

            Section 3.20 Modifications, Waivers, Amendments and Consents

            (a) Subject to the provisions of this Section 3.20, Section 3.21,
Section 3.31 and Section 3.32 (and, in the case of any Mortgage Loan
Combination, subject to the terms of the related Intercreditor Agreement), the
Master Servicer and the Special Servicer may, on behalf of the Trustee, agree to
any modification, waiver or amendment of any term of any Mortgage Loan without
the consent of the Trustee or any Certificateholder.

            (i) For any Performing Mortgage Loan, and subject to the rights of
      the Special Servicer set forth below, the Master Servicer shall be
      responsible subject to the other requirements of this 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 provided in Section 3.02) affect the amount or timing of any
      scheduled payments of principal, interest or other amounts payable under
      such Mortgage Loan, affect the obligation of the related Borrower to pay a
      Yield Maintenance Charge or permit a Principal Prepayment by the Borrower
      during a prepayment lockout period, result in the release of the related
      Borrower from any material term thereunder, waive any rights thereunder
      with respect to any guarantor thereof, relate to the release or
      substitution of any material collateral for such Mortgage Loan or, in the
      reasonable judgment of the Master Servicer, materially impair the security
      for such Mortgage Loan or reduce the likelihood of timely payments of
      amounts due thereon; and provided, further, that this Section 3.20(a)(i)
      does not apply to waivers contemplated by Section 3.07 or 3.08. To the
      extent consistent with the foregoing, the Master Servicer shall be
      responsible for the following:

                  (A) approving routine leasing activity with respect to leases
            for less than the lesser of (a) 30,000 square feet and (b) 20% of
            the related Mortgaged Property;

                  (B) 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) 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);

                  (C) waiving any provision of a Mortgage Loan requiring the
            receipt of a rating confirmation if such Mortgage Loan is not a
            Significant Trust Mortgage Loan and the related provision of such
            Mortgage 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);

                  (D) subject to other restrictions herein regarding Principal
            Prepayments, waiving any provision of a Mortgage Loan requiring a
            specified number of days notice prior to a Principal Prepayment;

                  (E) releases of non-material parcels of a Mortgaged Property
            (provided that any such releases are releases as to which the
            related Mortgage 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 Mortgage Loan
            Documents); and

                  (F) grants of easements, 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 Mortgage Loan;

                  (G) disbursements of any earnouts or holdback amounts;

provided, however, that if in the reasonable judgment of the Master Servicer any
request by a Borrower for consent of the Mortgagee or any modification, waiver
or amendment in connection with an assumption transaction of a GMACCM Trust
Mortgage Loan that is a Performing Mortgage Loan contemplated by Section 3.08 is
not included within the scope of this clause (i), the Master Servicer shall
process the Borrower's request and submit such request for approval by the
Special Servicer in connection with (and subject to the same time constraints
for) its approval of the subject assumption transaction related to a GMACCM
Trust Mortgage Loan that is a Performing Mortgage Loan pursuant to Section 3.08;
provided, further, that with respect to any Performing Mortgage Loan and any
request for the disbursement of any earnouts or holdback amounts with respect to
such Performing Mortgage Loan, the Master Servicer shall process the Borrower's
request and submit such request for approval by the Special Servicer (which
approval shall be deemed given if the request is not denied by the Special
Servicer in writing to the Master Servicer within ten (10) Business Days of the
Special Servicer's receipt of such request); and provided, further, that if in
the reasonable judgment of the 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 clause (i) and is not related to an assumption
transaction, the Special Servicer shall be responsible for such request in
accordance with clause (ii) below.

            (ii) The Special Servicer shall be responsible for any request by a
      Borrower for the consent of the mortgagee and any modification, waiver or
      amendment of any term of any Mortgage Loan for which the Master Servicer
      is not responsible, as provided above, or if such consent, request,
      modification, waiver or amendment relates to a Specially Serviced Mortgage
      Loan or a Mortgage 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 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.

            (b) All modifications, waivers or amendments of any Mortgage Loan
shall be (i) in writing and (ii) effected in accordance with the Servicing
Standard.

            (c) Neither the Master Servicer nor, except as provided in Section
3.20(d), the Special Servicer, on behalf of the Trustee, shall agree or consent
to any modification, waiver or amendment of any term of any Performing Mortgage
Loan if such modification, waiver or amendment would:

            (i) except for the waiver of Penalty Charges in accordance with
      Section 3.02(a), affect the amount or timing of any related payment of
      principal, interest or other amount (including Yield Maintenance Charges)
      payable thereunder;

            (ii) affect the obligation of the related Borrower to pay a Yield
      Maintenance Charge or permit a Principal Prepayment during any period in
      which the related Note prohibits Principal Prepayments;

            (iii) except as expressly contemplated by the related Mortgage or in
      connection with a defeasance or pursuant to Section 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 Master Servicer and the Special Servicer, as applicable, may
      conclusively rely) of the property to be released; or

            (iv) in the judgment of the Master Servicer or Special Servicer, as
      applicable, otherwise materially impair the security for such Mortgage
      Loan or reduce the likelihood of timely payment of amounts due thereon;

            unless either (x) the subject Trust Mortgage Loan is in default or
default is reasonably foreseeable or (y) the Special Servicer has determined
(and may rely on an opinion of counsel in making the determination) that the
modification, waiver or amendment will not be a "significant modification" of
the subject Trust Mortgage Loan within the meaning of Treasury regulations
section 1.860G-2(b). Nothing contained in this Section 3.20(c) shall modify the
scope of the modifications, amendments, waivers and consents for Mortgage Loans
for which the Master Servicer and Special Servicer, as applicable, are
responsible under Sections 3.20(a)(i) and (a)(ii).

            (d) Notwithstanding Sections 3.20(a)(i) and 3.20(c), but subject to
Sections 3.20(e) and 3.20(f), the Special Servicer may (i) reduce the amounts
owing under any Specially Serviced Mortgage Loan by forgiving principal, accrued
interest and/or any Yield Maintenance Charge, (ii) reduce the amount of the
Monthly Payment on any Specially Serviced Mortgage 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
Mortgage Loan, (iv) extend the maturity of any Specially Serviced Mortgage 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
Mortgage Loan and/or (vii) accept a Principal Prepayment during any Lockout
Period; provided that (A) the related Borrower is in default with respect to the
Specially Serviced Mortgage Loan or, in the judgment of the Special Servicer,
such default is reasonably foreseeable and (B) in the sole good faith judgment
of the Special Servicer and in accordance with the Servicing Standard, such
modification would increase the recovery on the subject Mortgage Loan to
Certificateholders (or, in the case of a Mortgage Loan Combination,
Certificateholders and the related B Loan Holder), as a collective whole, on a
present value basis (the relevant discounting of amounts that will be
distributable to Certificateholders or a B Loan Holder to be performed at the
related Mortgage Rate).

            The determination of the Special Servicer contemplated by clause (B)
of the proviso to the prior paragraph of this Section 3.20(d) shall be evidenced
by an Officer's Certificate to such effect delivered to the Trustee and the
Master Servicer and describing in reasonable detail the basis for the Special
Servicer's determination and the considerations of the 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, occupancy status and property inspections, and shall
include an Appraisal of the related Mortgage Loan or Mortgaged Property, the
cost of which Appraisal shall be advanced by the Master Servicer as a Servicing
Advance).

            (e) Neither the Master Servicer nor the Special Servicer shall
consent to, make or permit any modification, waiver or amendment of any term of
any Mortgage Loan that would cause an Adverse REMIC Event with respect to any
REMIC Pool, an Adverse Grantor Trust Event with respect to the Grantor Trust
Pool or any event similar to the foregoing with respect to either REMIC or
grantor trust that includes a B Loan.

            (f) In no event shall the Special Servicer (i) extend the Maturity
Date of a Mortgage Loan beyond a date that is three years prior to the Rated
Final Distribution Date; (ii) extend the Maturity Date of any Mortgage Loan at
an interest rate less than the lower of (A) the interest rate in effect prior to
such extension or (B) the then prevailing interest rate for comparable loans, as
determined by the Special Servicer by reference to available indices for
commercial mortgage lending; (iii) if the Mortgage Loan is secured by a Ground
Lease, extend the Maturity Date of such Mortgage 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); or (iv) defer interest due on any Mortgage
Loan in excess of 5% of the Stated Principal Balance of such Mortgage Loan;
provided that with respect to clause (iii) above, the 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).

            (g) [Reserved]

            (h) The Master Servicer and the 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 instruments evidencing or securing the
related Mortgage Loan 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 Mortgage Loan under Treasury regulations section
1.860G-2(b)), and (ii) any related costs and expenses incurred by it. In no
event shall the Master Servicer or the Special Servicer be entitled to payment
for such fees or expenses unless such payment is collected from the related
Borrower.

            (i) The Master Servicer and the Special Servicer shall notify each
other, each affected B Loan Holder (if any) and the Trustee, in writing, of any
modification, waiver or amendment of any term of any Mortgage Loan (including
fees charged the Borrower) agreed to by the Master Servicer or the Special
Servicer, as the case may be, and the date thereof, and shall deliver to the
Trustee (in the case of the Special Servicer, with a copy to the Master
Servicer) for deposit in the related Mortgage File, an original counterpart of
the agreement relating to such modification, waiver or amendment, promptly (and
in any event within ten Business Days) following the execution thereof. The
Master Servicer or Special Servicer, as applicable, shall notify the Rating
Agencies of any modification, waiver or amendment of any term of any Significant
Trust Mortgage Loan agreed to by the Master Servicer or the Special Servicer, as
the case may be. Copies of each agreement whereby any such modification, waiver
or amendment of any term of any Mortgage Loan is effected shall be made
available for review upon prior request during normal business hours at the
offices of the Master Servicer or Special Servicer, as applicable, pursuant to
Section 3.15 hereof.

            (j) With respect to each Borrower that has been established as a
"bankruptcy-remote entity", neither the Master Servicer nor the Special Servicer
shall consent to (x) the amendment by such Borrower of its organizational
documents or (y) any action that would violate any covenant of such Borrower
relating to its status as a separate or bankruptcy-remote entity, unless
granting such consent is consistent with the Servicing Standard and, with
respect to a Borrower under any Significant Trust Mortgage Loan, the Master
Servicer or the Special Servicer, as applicable, has obtained written
confirmation from each of the Rating Agencies that such amendment or action
would not result in a downgrade or withdrawal of any rating on a Class of
Certificates rated by such Rating Agency.

            Section 3.21 Transfer of Servicing Between Master Servicer and
Special Servicer; Record Keeping; Series 2005-C1 Directing Certificateholder

            (a) Upon determining that a Servicing Transfer Event has occurred
with respect to any Trust Mortgage Loan or Junior Loan, the Master Servicer
shall promptly give notice thereof to the Special Servicer, the Trustee, each
Rating Agency, the Series 2005-C1 Directing Certificateholder and any Requesting
Subordinate Certificateholder (at the expense of such requesting Holder) (and,
solely as it relates to any related Junior Loan of a Serviced Loan Combination,
any related Junior Loan Holder), shall deliver copies of the related Servicing
File to the Special Servicer and shall use its reasonable efforts to provide the
Special Servicer with all information, documents and records (including records
stored electronically on computer tapes, magnetic discs and the like) relating
to such Trust Mortgage Loan and any related B Loan(s) that are in the possession
of the Master Servicer or available to the Master Servicer without undue burden
or expense, and reasonably requested by the Special Servicer to enable it to
assume its functions hereunder with respect thereto. The 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 such
Trust Mortgage Loan and any related B Loan(s) until the Special Servicer has
commenced the servicing of such Trust Mortgage Loan. The Trustee shall make
available to the Underwriters, the Initial Purchaser, each affected B Loan
Holder (if any) and each Holder of a Certificate of the Controlling Class, a
copy of the notice of such Servicing Transfer Event provided by the Master
Servicer to the Special Servicer pursuant to this Section.

            Upon determining that a Specially Serviced Mortgage Loan (other than
an REO Mortgage Loan) has become a Corrected Mortgage Loan (provided no
additional Servicing Transfer Event is foreseeable in the reasonable judgment of
the Special Servicer) and that no other Servicing Transfer Event is continuing
with respect thereto, the Special Servicer shall immediately give notice thereof
and shall return the related Servicing File to the Master Servicer and, upon
giving such notice and returning such Servicing File to the Master Servicer, the
Special Servicer's obligation to service such Corrected Mortgage Loan shall
terminate and the obligations of the Master Servicer to service and administer
such Corrected Mortgage Loan shall re-commence.

            (b) In servicing any Specially Serviced Trust Mortgage Loan, the
Special Servicer will 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 Master Servicer) that come into
its possession, and provide the Master Servicer with copies of any additional
related Trust Mortgage Loan information including correspondence with the
related Borrower.

            (c) No later than the first Business Day following each
Determination Date, by 2:00 p.m. New York City time, the Special Servicer shall
deliver to the Master Servicer a statement, both written and in computer
readable format reasonably acceptable to the Master Servicer and the Special
Servicer (upon which the Master Servicer may conclusively rely) describing, on a
loan-by-loan and property-by-property basis, (1) the amount of all payments,
Insurance and Condemnation Proceeds and Liquidation Proceeds received with
respect to each Specially Serviced Trust Mortgage Loan during the related
Collection 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 Collection Period, (2) the amount, purpose and date
of all Servicing Advances made by the Master Servicer with respect to each
Specially Serviced Mortgage Loan and REO Property during the related Collection
Period, and (3) such additional information or data relating to the Specially
Serviced Trust Mortgage Loan and REO Properties as the Master Servicer
reasonably requests to enable it to perform its responsibilities under this
Agreement which is in the Special Servicer's possession or is reasonably
obtainable by the Special Servicer.

            (d) Notwithstanding the provisions of the preceding clause (c), the
Master Servicer shall maintain ongoing payment records with respect to each of
the Specially Serviced Mortgage Loans and REO Properties and shall provide the
Special Servicer with any information in its possession required by the Special
Servicer to perform its duties under this Agreement.

            (e) Subject to the last paragraph of this Section 3.21(e), 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 Mortgage Loan
or REO Property unless and until it has notified the Series 2005-C1 Directing
Certificateholder and the Series 2005-C1 Directing Certificateholder has not
objected in writing within 10 Business Days of having been notified thereof and
having been provided with all information that the Series 2005-C1 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 within
such 10-Business Day period, then the Series 2005-C1 Directing Certificateholder
shall be deemed to have approved the taking of the subject Specially Designated
Servicing Action); provided that, in the event that the Special Servicer
determines that immediate action is necessary to protect the interests of the
Certificateholders (as a collective whole) (or, in the case of a Mortgage Loan
Combination, to protect the interests of the Certificateholders and the related
B 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 Mortgage Loan or REO Property without waiting for the Series
2005-C1 Directing Certificateholder's response; and provided, further, that,
with respect to any Specially Designated Servicing Action being performed by the
Master Servicer in connection with an assumption transaction involving any
Mortgage Loan in accordance with Section 3.08, the above-referenced 10-Business
Day period shall not exceed the 10-day period within which the Special Servicer
must object to the Master Servicer's performance of such Specially Designated
Servicing Action pursuant to Section 3.08.

            In addition, subject to the last paragraph of this Section 3.21(e),
the Series 2005-C1 Directing Certificateholder may direct the Special Servicer
to take, or to refrain from taking, any actions with respect to the servicing
and/or administration of a Specially Serviced Mortgage Loan or REO Property as
the Series 2005-C1 Directing Certificateholder may deem advisable or as to which
provision is otherwise made herein. Upon reasonable request, the Special
Servicer shall provide the Series 2005-C1 Directing Certificateholder with any
information in the Special Servicer's possession with respect to such matters,
including its reasons for determining to take a proposed action.

            Notwithstanding the foregoing, no advice, direction or objection of
the Series 2005-C1 Directing Certificateholder shall (i) require or cause the
Special Servicer or the Master Servicer 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
Master Servicer's obligation to act in accordance with the Servicing Standard
and to maintain the REMIC status of any REMIC Pool, or (ii) result in an Adverse
REMIC Event with respect to any REMIC Pool or an Adverse Grantor Trust Event
with respect to the Grantor Trust Pool, or (iii) expose the Master Servicer, the
Special Servicer, the Depositor, any of the Mortgage Loan Sellers, the Trust
Fund, any B Loan Holder, the Trustee or their Affiliates, officers, directors,
shareholders, partners, members, managers, employees or agents to any claim,
suit or liability for which this Agreement does not provide indemnification to
such party, 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 if given by
the Series 2005-C1 Directing Certificateholder nor initiate any such actions.

            (f) Upon receiving notice of (i) 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 Mortgage Loan or the related Borrower,
(ii) the existence of a material non-payment default or (iii) the request by a
Borrower for the amendment or modification of a Mortgage Loan required to be
handled by the Special Servicer, the Master Servicer shall promptly give notice
thereof, and shall deliver copies of the related Servicing File, to the Special
Servicer and shall use its reasonable efforts to provide the Special Servicer
with all information relating to the Mortgage Loan and reasonably requested by
the Special Servicer to enable it to negotiate with the related Borrower and
prepare for any such proceedings. The 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 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 Mortgage Loan consistent with the terms of this Agreement, and/or
prepare for such proceedings. Notwithstanding the foregoing, the occurrence of
the above-referenced event shall not in and of itself be considered a Servicing
Transfer Event.

            Section 3.22 Sub-Servicing Agreements

            (a) The Master Servicer and, subject to Section 3.22(f), the Special
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 consistent with
this Agreement (including the Events of Default in clauses (i)-(viii) of Section
7.01(a)) in all material respects and requires the Sub-Servicer to comply with
all of the applicable conditions of this Agreement; (ii) provides that if the
Master Servicer or the Special Servicer, as the case may be, 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 the Master
Servicer or the Special Servicer, as the case may be, may thereupon assume all
of the rights and, except to the extent they arose prior to the date of
assumption, obligations of the Master Servicer or the Special Servicer, as the
case may be, under such agreement or, alternatively, may terminate such
Sub-Servicing Agreement without cause and without payment of any penalty or
termination fee (provided that any Sub-Servicing Agreements entered into by the
Master Servicer with entities identified on Exhibit N can only be terminated for
cause); (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 the Master Servicer or the Special Servicer, as the case may
be, thereunder as contemplated by the immediately preceding clause (ii)) none of
the Trust Fund, the Trustee, any successor Master Servicer, 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 Trust
Mortgage Loan pursuant to this Agreement to terminate such Sub-Servicing
Agreement with respect to such purchased Trust Mortgage 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 the Master
Servicer or Special Servicer, as applicable; (vi) does not permit the
Sub-Servicer to foreclose on the related Mortgaged Property or consent to the
modification of any Mortgage Loan without the prior consent of the Master
Servicer or the Special Servicer, as applicable; (vii) provides that the
Sub-Servicer shall act in accordance with the Servicing Standard; and (viii)
provides that in the event of an act or failure to act by the Sub-Servicer that
causes the Master Servicer or Special Servicer, as applicable, 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. Any successor Master
Servicer or Special Servicer hereunder, upon becoming successor Master Servicer
or Special Servicer, as applicable, shall have the right to be assigned and
shall have the right to assume any Sub-Servicing Agreements from the predecessor
Master Servicer or Special Servicer, as applicable.

            In addition, each Sub-Servicing Agreement entered into by the Master
Servicer may provide that the obligations of the Sub-Servicer thereunder shall
terminate with respect to any Mortgage Loan serviced thereunder at the time such
Mortgage Loan becomes a Specially Serviced Mortgage Loan. The Master Servicer
and the Special Servicer, as applicable, 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 (except with respect to any
requirement that the Master Servicer deposit funds in the Collection Account or
any Servicing Account within a specified time period), the Master Servicer shall
be deemed to have received any payment when a Sub-Servicer retained by it
receives such payment. The Master Servicer shall notify the Special Servicer,
the Trustee and the Depositor in writing promptly of the appointment by it of
any Sub-Servicer. The Special Servicer shall notify the Master Servicer, the
Trustee, the Depositor and any affected B Loan Holder 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 to ensure the
enforceability of the Mortgage Loans to be serviced by such Sub-Servicer.

            (c) As part of its servicing activities hereunder, the Master
Servicer or the Special Servicer, as applicable, for the benefit of the Trustee
and the Certificateholders, shall (at no expense to the Trustee, the
Certificateholders, the Trust Fund or any B Loan Holder) monitor the performance
and enforce the obligations of each Sub-Servicer under each Sub-Servicing
Agreement it has entered into. 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 the Master Servicer or Special Servicer, as applicable, would require
were it the owner of the subject Mortgage Loans. The Master Servicer or the
Special Servicer, as applicable, 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 Master Servicer
and elects or is required to assume the rights and obligations of the Master
Servicer or the Special Servicer, as applicable, under any Sub-Servicing
Agreement, the Master Servicer or the Special Servicer, as applicable, at its
expense, shall deliver to the assuming party all documents and records relating
to such Sub-Servicing Agreement and the Mortgage Loans 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,
each of the Master Servicer and the Special Servicer represents, warrants and
covenants that it shall remain obligated and liable to the Trustee, the
Certificateholders and the B Loan Holders 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 Mortgage Loans for which it is responsible, and
the Master Servicer, or the Special Servicer, as applicable, shall pay the fees
of any Sub-Servicer thereunder from its own funds. 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.

            (f) The Special Servicer shall not enter into any Sub-Servicing
Agreement unless either: (i) such agreement relates to one or more Trust
Mortgage Loans (including any such Trust Mortgage Loan(s) previously
sub-serviced in accordance with this Section 3.22) that together represent less
than 25% of the aggregate outstanding principal balance of all Specially
Serviced Trust Mortgage Loans; or (ii) the Series 2005-C1 Directing
Certificateholder has consented.

            Section 3.23 Representations, Warranties and Covenants of the Master
Servicer

            (a) The Master Servicer hereby represents and warrants to the
Trustee, for its own benefit and the benefit of the Certificateholders, and to
the Depositor, the Special Servicer and the B Loan Holders, as of the Closing
Date, that:

            (i) The Master Servicer is a corporation, duly organized, validly
      existing and in good standing under the laws of California, and the 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 the
      Master Servicer to perform its obligations hereunder;

            (ii) The execution and delivery of this Agreement by the Master
      Servicer, and the performance and compliance with the terms of this
      Agreement by the Master Servicer, will not (A) violate the Master
      Servicer's certificate of incorporation and by-laws 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 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 the Master Servicer which, in the case of
      either (B) or (C), is likely to materially and adversely affect the 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 the Master Servicer, enforceable against the 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) The 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 the 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 the Master
      Servicer's knowledge, threatened against the Master Servicer which, if
      determined adversely to the Master Servicer, would prohibit the Master
      Servicer from entering into this Agreement or, in the Master Servicer's
      good faith and reasonable judgment, is likely to materially and adversely
      affect the ability of the 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 the Master Servicer of, or compliance by the Master
      Servicer with, this Agreement or the consummation of the 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 the Master Servicer of its
      obligations under this Agreement, or which, if not obtained, would not
      have a materially adverse effect on the ability of the Master Servicer to
      perform its obligations hereunder;

            (vii) The 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) The 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 the Master Servicer at a
      future date, will not be, materially inconsistent with the terms of this
      Agreement; and

            (ix) Each officer and employee of the Master Servicer that has
      responsibilities concerning the servicing and administration of Mortgage
      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, warranties and covenants set forth in
subsection (a) above shall survive the execution and delivery of this Agreement.

            Section 3.24 Representations, Warranties and Covenants of the
Special Servicer

            (a) The Special Servicer hereby represents and warrants to the
Trustee, for its own benefit and the benefit of the Certificateholders, and to
the Depositor, the Master Servicer and the B Loan Holders, as of the Closing
Date and as to the Special Servicer, that:

            (i) The Special Servicer is a corporation duly organized, validly
      existing and in good standing under the laws of the State of Florida, and
      the 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 the Special
      Servicer, and the performance and compliance with the terms of this
      Agreement by the Special Servicer, will not (A) violate the Special
      Servicer's certificate of incorporation and by-laws 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 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 the Special Servicer which, in the case of
      either (B) or (C), is likely to materially and adversely affect the
      Special Servicer's ability to perform hereunder;

            (iii) The Special 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;

            (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 Special Servicer, enforceable against the
      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) The Special 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 the Special
      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;

            (vi) No litigation is pending or, to the best of the Special
      Servicer's knowledge, threatened against the Special Servicer which, if
      determined adversely to the Special Servicer, would prohibit the Special
      Servicer from entering into this Agreement or, in the Special Servicer's
      good faith and reasonable judgment, is likely to materially and adversely
      affect the ability of the Special Servicer to perform its obligations
      under this Agreement;

            (vii) Each officer, director or employee of the Special Servicer
      that has or, following the occurrence of a Servicing Transfer Event, would
      have responsibilities concerning the servicing and administration of
      Mortgage 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 the 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 Mortgage
      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 the Special Servicer, or compliance by the 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 the Special Servicer of its obligations under this
      Agreement, or which, if not obtained would not have a materially adverse
      effect on the ability of the Special Servicer to perform its obligations
      hereunder;

            (ix) The Special Servicing Fee represents reasonable servicing
      compensation; and

            (x) The 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 the Special Servicer at a
      future date, will not, be materially inconsistent with the terms of this
      Agreement.

            (b) The representations, warranties and covenants set forth in
subsection (a) above shall survive the execution and delivery of this Agreement.

            Section 3.25 Limitation on Liability of the Series 2005-C1 Directing
Certificateholder

            The Series 2005-C1 Directing Certificateholder shall have no
liability whatsoever to the Trust Fund or any Certificateholder other than a
Controlling Class Certificateholder and shall have no liability to any
Controlling Class Certificateholder 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, with respect to Controlling Class
Certificateholders, the Series 2005-C1 Directing Certificateholder shall not be
protected against any liability which would otherwise be imposed by reason of
willful misfeasance, bad faith or negligence in the performance of duties or by
reason of reckless disregard of obligations or duties. By its acceptance of a
Certificate, each Certificateholder confirms its understanding that the Series
2005-C1 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 Series 2005-C1 Directing Certificateholder may have special
relationships and interests that conflict with those of Holders of some Classes
of the Certificates, that the Series 2005-C1 Directing Certificateholder may act
solely in the interests of the Holders of the Controlling Class, that the Series
2005-C1 Directing Certificateholder does not have any duties to the Holders of
any Class of Certificates other than the Controlling Class, that the Series
2005-C1 Directing Certificateholder may take actions that favor the interests of
the Holders of the Controlling Class over the interests of the Holders of one or
more other classes of Certificates, and that the Series 2005-C1 Directing
Certificateholder shall have no liability whatsoever for having so acted, and no
Certificateholder may take any action whatsoever against the Series 2005-C1
Directing Certificateholder or any director, officer, employee, agent or
principal thereof for having so acted.

            Section 3.26 Filings with the Securities and Exchange Commission

            (a) With respect to the Trust's fiscal year 2005 (and any other
subsequent fiscal year for the Trust, if as of the beginning of such other
subsequent fiscal year for the Trust, the Registered Certificates are held
(directly or, in the case of Registered Certificates held in book-entry form,
through the Depository) by at least 300 Holders and/or Depository Participants
having accounts with the Depository, or if reporting under the Exchange Act is
required during or for, as applicable, such fiscal year because the Trustee
failed to make the requisite filing suspending such reporting), the Trustee
shall:

            (i) with respect to each Distribution Date during such fiscal year,
      in accordance with the Exchange Act, the rules and regulations promulgated
      thereunder and applicable "no-action letters" issued by the Commission,
      prepare for filing, execute on behalf of the Trust and properly and timely
      file with the Commission monthly, with respect to the Trust, a Current
      Report on Form 8-K, which shall include as an exhibit a copy of the
      Trustee Report disseminated by the Trustee on such Distribution Date and
      such other items as the Depositor may reasonably request;

            (ii) during such fiscal year, (A) monitor for and promptly notify
      the Depositor of the occurrence or existence of any of the matters
      identified in Section 11.10(a) and/or Section 3.26(c) (in each case to the
      extent that a Responsible Officer of the Trustee has actual knowledge
      thereof), (B) cooperate with the Depositor in obtaining all necessary
      information in order to enable the Depositor to prepare a Current Report
      on Form 8-K reporting any such matter in accordance with the Exchange Act,
      the rules and regulations promulgated thereunder and applicable "no-action
      letters" issued by the Commission, and (C) execute on behalf of the Trust
      and promptly file with the Commission any such Current Report on Form 8-K
      prepared by or on behalf of the Depositor and delivered to the Trustee;

            (iii) at the reasonable request of, and in accordance with the
      reasonable directions of, any other party hereto, prepare for filing and
      promptly file with the Commission an amendment to any Current Report on
      Form 8-K previously filed with the Commission with respect to the Trust;
      and

            (iv) within 90 days following the end of such fiscal year, prepare
      and properly file with the Commission, with respect to the Trust, an
      Annual Report on Form 10-K, which complies in all material respects with
      the requirements of the Exchange Act, the rules and regulations
      promulgated thereunder and applicable "no-action letters" issued by the
      Commission, which shall include as exhibits the Officer's Certificates and
      Accountant's Statements delivered pursuant to Section 3.13 and Section
      3.14, respectively, with respect to the Master Servicer and the Special
      Servicer for such fiscal year, and which shall further include such
      certification(s) as may be required under the Sarbanes-Oxley Act of 2002
      and any rules promulgated by, or interpretive guidance from, the
      Commission (such certification(s), individually and collectively, insofar
      as they are required to be part of any particular Annual Report on Form
      10-K, a "Sarbanes-Oxley Certification") (which Sarbanes-Oxley
      Certifications shall be signed by an officer of the Depositor as
      contemplated by this Section 3.26);

provided that (x) the Trustee shall not have any responsibility to file any
items (other than those generated by it) that have not been received in a format
suitable for (or readily convertible to a format suitable for) electronic filing
via the EDGAR system (including "ASCII", "Microsoft Excel" (solely in the case
of reports from the Master Servicer or the Special Servicer pursuant to Section
3.12), "Microsoft Word" or another format reasonably acceptable to the Trustee)
and shall not have any responsibility to convert any such items to such format
(other than those items generated by it or readily convertible to such format)
and (y) the Depositor shall be responsible for preparing, executing and filing
(via the EDGAR system within 15 days following the Closing Date) a Current
Report on Form 8-K reporting the establishment of the Trust and whereby this
Agreement is filed as an exhibit. Each of the other parties to this Agreement
shall deliver to the Trustee in the format required for (or readily convertible
to a format suitable for) electronic filing via the EDGAR system (including
"ASCII", "Microsoft Excel" (solely in the case of reports from the Master
Servicer or the Special Servicer pursuant to Section 3.12), "Microsoft Word" or
another format reasonably acceptable to the Trustee) any and all items
contemplated to be filed with the Commission pursuant to this Section 3.26(a).

            The Trustee shall have no liability to Certificateholders or the
Trust with respect to any failure to properly prepare or file with the
Commission any of the reports under the Exchange Act contemplated by this
Section 3.26(a) to the extent that such failure did not result from any
negligence, bad faith or willful misconduct on the part of the Trustee.

            (b) All Annual Reports on Form 10-K with respect to the Trust shall
include a Sarbanes-Oxley Certification, and a copy of such Sarbanes-Oxley
Certification shall be provided to the Rating Agencies. An officer of the
Depositor shall sign the Sarbanes-Oxley Certification. The Depositor hereby
grants to the Trustee a limited power of attorney to execute and file such
Annual Report on Form 10-K on behalf of the Depositor, which power of attorney
shall continue until the earlier of (i) receipt by the Trustee from the
Depositor of written notice terminating such power of attorney or (ii) the
termination of the Trust. The Master Servicer, the Special Servicer and the
Trustee (each, a "Performing Party") shall provide to the Person who signs the
Sarbanes-Oxley Certification (the "Certifiying Person"), and the Special
Servicer shall also provide to the Master Servicer, a certification (each, a
"Performance Certification"), in the forms set forth on Exhibit M-1, Exhibit M-2
and Exhibit M-3 hereto, on which the Certifying Person, the Depositor (if the
Certifying Person is an individual), and each partner, representative,
Affiliate, member, manager, director, officer, shareholder, employee or agent of
the Certifying Persons (collectively with the Certifying Persons, "Certification
Parties") can rely. Notwithstanding the foregoing, nothing in this paragraph
shall require any Performing Party to (i) certify or verify the accurateness or
completeness of any information provided to such Performing Party by third
parties, (ii) to certify information other than to such Performing Party's
knowledge and in accordance with such Performing Party's responsibilities
hereunder or under any other applicable servicing agreement 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 Performing Party have been completed except as they have been left blank on
their face. In addition, if directed by the Depositor or the Master Servicer, as
applicable, such Performing Party (other than the Trustee) shall provide an
identical certification to Depositor's or the Master Servicer's, as applicable,
certified public accountants that such Performing Party provided to its own
certified public accountants to the extent such certification relates to the
performance of such Performing Party's duties pursuant to this Agreement or a
modified certificate limiting the certification therein to the performance of
such Performing Party's duties pursuant to this Agreement. In the event any
Performing Party is terminated or resigns pursuant to the terms of this
Agreement, such Performing Party shall provide a Performance Certification to
the Depositor or the Master Servicer, as applicable, pursuant to this Section
3.26 with respect to the period of time such Performing Party was subject to
this Agreement.

            (c) At all times during the Trust's fiscal year 2005 (and, if as of
the beginning of any other fiscal year for the Trust, the Registered
Certificates are held (directly or, in the case of Registered Certificates held
in book-entry form, through the Depository) by at least 300 Holders and/or
Depository Participants having accounts with the Depository, or if reporting
under the Exchange Act is required during or for, as applicable, any other
fiscal year because the Trustee failed to make the requisite filing suspending
such reporting, at all times during such other fiscal year), the Trustee shall
monitor for and promptly notify the Depositor of the occurrence or existence of
any of the following matters of which a Responsible Officer of the Trustee has
actual knowledge:

            (i) any failure of the Trustee to make any monthly distributions to
      the Holders of any Class of Certificates, which failure is not otherwise
      reflected in the Certificateholder Reports filed with the Commission or
      has not otherwise been reported to the Depositor pursuant to any other
      Section of this Agreement;

            (ii) any acquisition or disposition by the Trust of a Trust Mortgage
      Loan or an REO Property, which acquisition or disposition has not
      otherwise been reflected in the Certificateholder Reports filed with the
      Commission or has not otherwise been reported to the Depositor pursuant to
      any other section of this Agreement;

            (iii) any other acquisition or disposition by the Trust of a
      significant amount of assets (other than Permitted Investments, Trust
      Mortgage Loans and REO Properties), other than in the normal course of
      business;

            (iv) any change in the fiscal year of the Trust;

            (v) any material legal proceedings, other than ordinary routine
      litigation incidental to the business of the Trust, to which the Trust (or
      any party to this Agreement on behalf of the Trust) is a party or of which
      any property included in the Trust Fund is subject, or any threat by a
      governmental authority to bring any such legal proceedings;

            (vi) any event of bankruptcy, insolvency, readjustment of debt,
      marshalling of assets and liabilities, or similar proceedings in respect
      of or pertaining to the Trust or any party to this Agreement, or any
      actions by or on behalf of the Trust or any party to this Agreement
      indicating its bankruptcy, insolvency or inability to pay its obligations;
      and

            (vii) any change in the rating or ratings assigned to any Class of
      Certificates not otherwise reflected in the Certificateholder Reports
      filed with the Commission;

provided that (x) the actual knowledge of a Responsible Officer of the Trustee
of any material legal proceedings of which property included in the Trust Fund
is subject or of any material legal proceedings threatened by a governmental
authority is limited to circumstances where it would be reasonable for the
Trustee to identify such property as an asset of, or as securing an asset of,
the Trust or such threatened proceedings as concerning the Trust and (y) no
Responsible Officer of the Trustee shall be deemed to have actual knowledge of
the matters described in clauses (vi) and (vii) of this Section 3.26(b) unless
such Responsible Officer was notified in writing.

            (d) If as of the beginning of any fiscal year for the Trust (other
than fiscal year 2005), the Registered Certificates are held (directly or, in
the case of Registered Certificates held in book-entry form, through the
Depository) by less than 300 Holders and/or Depository Participants having
accounts with the Depository, the Trustee shall, in accordance with the Exchange
Act and the rules and regulations promulgated thereunder, timely file a Form 15
with respect to the Trust notifying the Commission of the suspension of the
reporting requirements under the Exchange Act.

            (e) Nothing contained in this Section 3.26 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 or any Sarbanes-Oxley Certification.
The failure of any party to this Agreement, or any of such party's officers, to
execute any Form 10-K or any Sarbanes-Oxley Certification shall not be regarded
as a breach by such party of any of its obligations under this Agreement. The
Depositor, each Performing Party and the Trustee hereby agree to negotiate in
good faith with respect to compliance with any further guidance from the
Commission or its staff relating to the execution of any Form 10-K and any
Sarbanes-Oxley Certification. In the event such parties agree on such matters,
this Agreement shall be amended to reflect such agreement pursuant to Section
11.01.

            (f) Each Performing Party shall indemnify and hold harmless each
Certification Party from and against any losses, damages, penalties, fines,
forfeitures, reasonable and necessary legal fees and related costs, judgments
and other costs and expenses incurred by such Certification Party arising out of
(i) an actual breach by the applicable Performing Party of its obligations under
this Section 3.26 or (ii) negligence, bad faith or willful misconduct on the
part of such Performing Party in the performance of its obligations otherwise
hereunder. A Performing Party shall have no obligation to indemnify any
Certification Party for an inaccuracy in the Performance Certification of any
other Performing Party. If the indemnification provided for in this Section 3.26
is unavailable or insufficient to hold harmless a Certification Party (on
grounds of public policy or otherwise), then each Performing Party shall
contribute to the amount paid or payable by such Certification Party as a result
of the losses, claims, damages or liabilities of such Certification Party in
such proportion as is appropriate to reflect the relative fault of such
Certification Party on the one hand and each Performing Party on the other. The
obligations of the Performing Parties in this Section 3.26(f) to contribute are
several in the proportions described in the preceding sentence and not joint.

            With respect to the indemnification provided for in this Section
3.26, 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.

            (g) Notwithstanding any provisions in this Agreement to the
contrary, but subject to the last sentence of this subsection, the Trustee shall
not be required to review the content of any Exchange Act Report for compliance
with applicable securities laws or regulations, completeness, accuracy or
otherwise, and the Trustee shall have no liability with respect to any Exchange
Act Report filed with the Commission or delivered to Certificateholders. None of
the Master Servicer, the Special Servicer and the Trustee shall be responsible
for the accuracy or completeness of any information supplied by a Borrower or a
third party for inclusion in any Form 8-K, and each of the Master Servicer, the
Special Servicer and the Trustee and their respective Affiliates, shareholders,
partners, members, managers, agents, directors, officers and employees shall be
indemnified and held harmless by the Trust Fund against any loss, liability or
expense incurred in connection with any legal action relating to any statement
or omission or alleged statement or omission therein. None of the Trustee, the
Special Servicer and the Master Servicer shall have any responsibility or
liability with respect to any Exchange Act Report filed by the Depositor, and
each of the Master Servicer, the Special Servicer and the Trustee and their
respective Affiliates, shareholders, partners, members, managers, agents,
directors, officers and employees shall be indemnified and held harmless by the
Trust Fund against any loss, liability or expense incurred in connection with
any legal action relating to any statement or omission or alleged statement or
omission therein. Notwithstanding the foregoing, however, this Section 3.26(g)
is subject to (and no Performing Party will be entitled to indemnification for
any payments made by it pursuant to) Section 3.26(f), and each Performing Party
shall be responsible for any Performance Certification delivered by it to the
extent set forth in this Section 3.26.

            (h) [Reserved]

            (i) The respective parties hereto agree to cooperate with all
reasonable requests made by any Certifying Person in connection with such
Person's attempt to conduct any due diligence that such Person reasonably
believes to be appropriate in order to allow it to deliver any Sarbanes-Oxley
Certification or, solely in the case where the Certifying Person in respect of
the Master Servicer attempts to conduct any due diligence with respect to the
Special Servicer, any Performance Certification, or portion thereof with respect
to the Trust.

            (j) Unless the other parties hereto receive written notice from the
Trustee to the contrary, the Trustee hereby certifies that it intends to file
any Annual Report on Form 10-K with respect to the Trust for any particular
fiscal year on the last Business Day that is not more than 90 days following the
end of such fiscal year. Unless an alternative time period is provided for in
this Agreement, the respective parties hereto shall deliver to the Trustee, at
least 10 Business Days prior to the date on which the Trustee intends to file
any Annual Report on Form 10-K as contemplated by Section 3.26(a), any items
required to be delivered by such party that are to be an exhibit to such Annual
Report on Form 10-K. The Depositor hereby directs the Trustee to notify, and the
Trustee hereby so notifies, the Master Servicer and the Special Servicer that an
Annual Report on Form 10-K shall be required to be filed with respect to the
Trust for 2005.

            Section 3.27 Lock-Box Accounts, Cash Collateral Accounts and
Servicing Accounts

            (a) The 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 Mortgage
Loan Documents.

            (b) For any Mortgage Loan that provides that a Lock-Box Account will
be established upon the occurrence of certain events specified in the related
Mortgage Loan Documents, the Master Servicer shall establish 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
Master Servicer shall establish a Lock-Box Account for each ARD Mortgage Loan no
later than its Anticipated Repayment Date.

            (c) With respect to each Mortgage Loan requiring the establishment
of a Lock-Box Account, the Master Servicer, upon receipt of the annual financial
statements of each Borrower, shall compare the gross revenue for the related
Mortgaged Property, as set forth in such financial statements, with the history
of the related Borrower's deposits (on an annual basis) into such Lock-Box
Account and shall report any discrepancies over 10% to the Special Servicer.

            (d) The Master Servicer shall timely provide all notifications and
otherwise timely take all actions necessary to perfect or maintain the
perfection of the security interest of the Trustee in each Lock-Box Account,
Cash Collateral Account and Servicing Account with respect to any Mortgage Loan.

            Section 3.28 Interest Reserve Account

            (a) The Trustee shall establish, on or before the Closing Date, and
maintain the Interest Reserve Account. The Trustee shall give notice to the
Master Servicer, the Special Servicer 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 in any February and on
each Distribution Date in any January which occurs in a year that is not a leap
year, the Trustee shall withdraw from the REMIC I Distribution Account and
deposit into the Interest Reserve Account in respect of each Interest Reserve
Loan 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 Interest Reserve Loan
immediately prior to such Distribution Date at the related Net Mortgage Rate, 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, the Trustee shall
withdraw from the Interest Reserve Account an amount equal to the Withheld
Amounts from the immediately preceding January and February, if any, and deposit
such amount (excluding any net investment income thereon) into the REMIC I
Distribution Account. On each Distribution Date, the Trustee shall deposit any
Net Investment Loss into the Interest Reserve Account and shall be permitted to
withdraw any Net Investment Earnings from the Interest Reserve Account.

            Section 3.29 Limitations on and Authorizations of the Master
Servicer and Special Servicer with Respect to Certain Mortgage Loans and Certain
Litigation

            (a) Prior to taking any action with respect to a Mortgage Loan
secured by any Mortgaged Properties located in a "one-action" state, the Special
Servicer shall consult with legal counsel, the fees and expenses of which shall
be covered by a Servicing Advance by the Master Servicer.

            (b) With respect to any Mortgage Loan which 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 Special Servicer may
consent (subject to Section 3.20 hereof) to either such action, or grant a
waiver with respect thereto, only if the Special Servicer determines that such
consent or grant of waiver is likely to result in a greater or equal recovery on
a present value basis (discounted at the related Mortgage Rate) than the
withholding of such consent or grant of waiver, and (in the case of a Trust
Mortgage Loan that is a Significant Trust Mortgage Loan) the Special Servicer
first obtains 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. The Master Servicer shall not be entitled or required to consent
to, or grant a waiver with respect to, such action, except in accordance with
Section 3.20 hereof, and except that, if such action is related to an assumption
transaction contemplated by Section 3.08, the Master Servicer shall process the
Borrower's request for such consent or waiver and submit such request for
approval by the Special Servicer in connection with its approval of the subject
assumption transaction pursuant to Section 3.08.

            (c) With respect to any ARD Mortgage Loan, so long as no event of
default beyond applicable notice and grace periods has occurred and is
continuing, the Master Servicer and the 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 Master Servicer and the Special Servicer to establish a
Lock-Box Account pursuant to Section 3.27.

            (d) To the extent not inconsistent with the related Mortgage Loan
Documents, neither the Master Servicer nor the Special Servicer shall consent to
a change of franchise affiliation with respect to any hotel property that in
whole or in part constitutes the Mortgaged Property securing a Mortgage Loan
unless it obtains 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 the then-current ratings on any Class of
Certificates. Neither the Master Servicer nor the Special Servicer shall be
required to obtain such written consent from any Rating Agency if such Mortgage
Loan is not one of the ten largest Trust Mortgage Loans (which term shall, for
the purposes of this Section 3.29(d), include groups of Crossed Trust Mortgage
Loans and groups of Trust Mortgage Loans made to affiliated Borrowers) by
outstanding principal balance at such time and the then-current principal
balance of such Mortgage Loan is less than $35,000,000.

            (e) [Reserved]

            (f) The Master Servicer shall, as to each Trust Mortgage Loan which
is secured by the interest of the related Borrower under a Ground Lease, at its
own expense, promptly (and in any event within 45 days of the Closing Date)
notify the related ground lessor of the transfer of such Trust Mortgage 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 Master Servicer, on behalf of the Trustee.

            (g) The Special 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 Series 2005-C1
Directing Certificateholder. The Special Servicer shall receive any such request
for such discretionary consents from any Junior Loan Holder, and shall forward
its analysis and recommendation to the Series 2005-C1 Directing
Certificateholder, who shall approve or reject such recommendation. The Series
2005-C1 Directing Certificateholder shall be deemed to have approved such
recommendation if not denied within ten Business Days of its receipt of the
Special Servicer's recommendation and any additional documents and information
that the Series 2005-C1 Directing Certificateholder may reasonably request, such
ten Business Day period to commence upon the receipt of the rating agency
confirmation described in the next sentence. Notwithstanding the foregoing, the
Special 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, if any, required pursuant to such Intercreditor
Agreement. In addition, notwithstanding the foregoing, with respect to granting
of any additional cure beyond those specifically provided for in the related
Intercreditor Agreement, there shall not be any deemed approvals and only
affirmative approvals (and for the avoidance of doubt, the time periods for
approvals set forth in this paragraph shall not apply to affirmative approvals)
by the Series 2005-C1 Directing Certificateholder shall permit the Special
Servicer to process such documentation as described above.

            Section 3.30 Master Servicer and Special Servicer May Own
Certificates

            (a) The Master Servicer and any agent of the 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 the Master Servicer or such
agent; except, with respect to Voting Rights, as set forth in the definition of
"Certificateholder".

            (b) The Special Servicer and any agent of the 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".

                                   ARTICLE IV

                         PAYMENTS TO CERTIFICATEHOLDERS

            Section 4.01 Distributions

            (a) On each Distribution Date prior to the date on which the
Certificate Balance of the last outstanding Class of Subordinate Certificates
has been reduced to zero, to the extent of the Available Distribution Amount for
such Distribution Date, the Trustee shall transfer or be deemed to transfer such
amounts from the REMIC I Distribution Account to the REMIC II Distribution
Account in the amounts and priorities set forth in Section 4.01(b) with respect
to each Class of Uncertificated REMIC I Interests, and immediately thereafter,
shall make distributions in the following order of priority, satisfying in full,
to the extent required and possible, each priority before making any
distribution with respect to any succeeding priority from the relevant portion
of the Available Distribution Amount:

            (i) concurrently, to the Class A-1, Class A-2, Class A-3, Class
      A-AB, Class A-4, Class A-X and Class A-SP Certificates, pro rata, up to
      the Optimal Interest Distribution Amounts for each such Class for such
      Distribution Date,

            (ii) to make distributions of principal to the Class A-1, Class A-2,
      Class A-3, Class A-AB and Class A-4 Certificates, in reduction of the
      Certificate Balances thereof, an amount up to the Total Principal
      Distribution Amount for such Distribution Date, in the following order of
      priority:

            First, to the Class A-AB Certificates, until the Certificate Balance
      thereof has been reduced to the Class A-AB Targeted Principal Balance set
      forth for such Distribution Date on Exhibit T hereto;

            Second, to the Class A-1 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-AB Certificates
      pursuant to a prior subclause of this clause (ii));

            Third, to the Class A-2 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-AB and Class A-1
      Certificates pursuant to a prior subclause of this clause (ii));

            Fourth, to the Class A-3 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-AB, Class A-1 and
      Class A-2 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-AB, Class A-1,
      Class A-2 and Class A-3 Certificates pursuant to a prior subclause of this
      clause (ii)); and

            Sixth, to the Class A-4 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-AB, Class A-1,
      Class A-2, Class A-3 and Class A-AB Certificates pursuant to a prior
      subclause of this clause (ii));

            provided, however, that, notwithstanding the immediately preceding
      subclauses First through Sixth, on each Distribution Date coinciding with
      or following the Senior Principal Distribution Cross-Over Date, and in any
      event on the Final Distribution Date, the Trustee shall make distributions
      of principal to the Holders of the Class A-1, Class A-2, Class A-3, Class
      A-AB and Class A-4 Certificates, on a pro rata basis, in accordance with
      the respective Certificate Balances of those Classes outstanding
      immediately prior to such Distribution Date, until the Certificate Balance
      of each such Class has been reduced to zero, in an aggregate amount equal
      to the entire Principal Distribution Amount for such Distribution Date;

            (iii) to the Class A-1, Class A-2, Class A-3, Class A-AB and Class
      A-4 Certificates, pro rata (based on the aggregate unreimbursed Realized
      Loss previously allocated to each such Class), until all amounts of such
      Realized Loss previously allocated to such Classes, but not previously
      reimbursed, have been reimbursed in full;

            (iv) to the Class A-J Certificates, in respect of interest, up to
      the Optimal Interest Distribution Amount for such Class for such
      Distribution Date;

            (v) to the Class A-J Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (vi) to the Class A-J Certificates, until all amounts of Realized
      Loss previously allocated to the Class A-J Certificates, but not
      previously reimbursed, have been reimbursed in full;

            (vii) to the Class B Certificates, in respect of interest, up to the
      Optimal Interest Distribution Amount for such Class for such Distribution
      Date;

            (viii) to the Class B Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (ix) to the Class B Certificates, until all amounts of Realized Loss
      previously allocated to the Class B Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (x) to the Class C Certificates, in respect of interest, up to the
      Optimal Interest Distribution Amount for such Class for such Distribution
      Date;

            (xi) to the Class C Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (xii) to the Class C Certificates, until all amounts of Realized
      Loss previously allocated to the Class C Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (xiii) to the Class D Certificates, in respect of interest, up to
      the Optimal Interest Distribution Amount for such Class for such
      Distribution Date;

            (xiv) to the Class D Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (xv) to the Class D Certificates, until all amounts of Realized Loss
      previously allocated to the Class D Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (xvi) the Class E Certificates, in respect of interest, up to the
      Optimal Interest Distribution Amount for such Class for such Distribution
      Date;

            (xvii) to the Class E Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (xviii) to the Class E Certificates, until all amounts of Realized
      Loss previously allocated to the Class E Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (xix) to the Class F Certificates, in respect of interest, up to the
      Optimal Interest Distribution Amount for such Class for such Distribution
      Date;

            (xx) to the Class F Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (xxi) to the Class F Certificates, until all amounts of Realized
      Loss previously allocated to the Class F Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (xxii) to the Class G Certificates, in respect of interest, up to
      the Optimal Interest Distribution Amount for such Class for such
      Distribution Date;

            (xxiii) to the Class G Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (xxiv) to the Class G Certificates, until all amounts of Realized
      Loss previously allocated to the Class G Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (xxv) to the Class H Certificates, in respect of interest, up to the
      Optimal Interest Distribution Amount for such Class for such Distribution
      Date;

            (xxvi) to the Class H Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (xxvii) to the Class H Certificates, until all amounts of Realized
      Loss previously allocated to the Class H Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (xxviii) to the Class J Certificates, in respect of interest, up to
      the Optimal Interest Distribution Amount for such Class for such
      Distribution Date;

            (xxix) to the Class J Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (xxx) to the Class J Certificates, until all amounts of Realized
      Loss previously allocated to the Class J Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (xxxi) to the Class K Certificates, in respect of interest, up to
      the Optimal Interest Distribution Amount for such Class for such
      Distribution Date;

            (xxxii) to the Class K Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (xxxiii) to the Class K Certificates, until all amounts of Realized
      Loss previously allocated to the Class K Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (xxxiv) to the Class L Certificates, in respect of interest, up to
      the Optimal Interest Distribution Amount for such Class for such
      Distribution Date;

            (xxxv) to the Class L Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (xxxvi) to the Class L Certificates, until all amounts of Realized
      Loss previously allocated to the Class L Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (xxxvii) to the Class M Certificates, in respect of interest, up to
      the Optimal Interest Distribution Amount for such Class for such
      Distribution Date;

            (xxxviii) to the Class M Certificates, in reduction of the
      Certificate Balance thereof, an amount up to the Remaining Principal
      Distribution Amount for such Distribution Date until such Certificate
      Balance has been reduced to zero;

            (xxxix) to the Class M Certificates, until all amounts of Realized
      Loss previously allocated to the Class M Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (xl) to the Class N Certificates, in respect of interest, up to the
      Optimal Interest Distribution Amount for such Class for such Distribution
      Date;

            (xli) to the Class N Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (xlii) to the Class N Certificates, until all amounts of Realized
      Loss previously allocated to the Class N Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (xliii) to the Class O Certificates, in respect of interest, up to
      the Optimal Interest Distribution Amount for such Class for such
      Distribution Date;

            (xliv) to the Class O Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (xlv) to the Class O Certificates, until all amounts of Realized
      Loss previously allocated to the Class O Certificates, but not previously
      reimbursed, have been reimbursed in full;

            (xlvi) to the Class P Certificates, in respect of interest, up to
      the Optimal Interest Distribution Amount for such Class for such
      Distribution Date;

            (xlvii) to the Class P Certificates, in reduction of the Certificate
      Balance thereof, an amount up to the Remaining Principal Distribution
      Amount for such Distribution Date until such Certificate Balance has been
      reduced to zero;

            (xlviii) to the Class P Certificates, until all amounts of Realized
      Loss previously allocated to the Class P Certificates, but not previously
      reimbursed, have been reimbursed in full; and

            (xlix) to the Class R Certificates, the amount, if any, remaining in
      the REMIC II Distribution Account after all other distributions pursuant
      to this Section 4.01(a) and Section 4.01(e).

            Notwithstanding the foregoing, on each Distribution Date occurring
on or after the date on which the Certificate Balance of the last outstanding
Class of Subordinate Certificates has been reduced to zero, the Trustee shall
apply amounts on deposit in the REMIC II Distribution Account in the following
order of priority: (i) concurrently, to the Class A-1, Class A-2, Class A-3,
Class A-AB, Class A-4, Class A-X and Class A-SP Certificates, pro rata, in
respect of the Optimal Interest Distribution Amount allocable to each such
Class; (ii) to the Class A-1, Class A-2, Class A-3, Class A-AB and Class A-4
Certificates, pro rata in reduction of the Certificate Balances thereof, until
the Certificate Balance of each such Class has been reduced to zero; and (iii)
to the Class A-1, Class A-2, Class A-3, Class A-AB and Class A-4 Certificates,
pro rata (based on the aggregate unreimbursed Realized Loss previously allocated
to such Class) until all amounts of such Realized Loss previously allocated to
such Classes but not previously reimbursed have been reimbursed in full.

            (b) On each Distribution Date, each Uncertificated REMIC I Interest
shall be deemed to receive distributions from the REMIC I Distribution Account
in respect of principal or reimbursement of Realized Loss in an amount equal to
the amount of principal or reimbursement of Realized Loss distributable to such
Uncertificated REMIC I Interest's respective Class of Corresponding Certificates
as provided in Section 4.01(a); provided that where more than one Class of
Uncertificated REMIC I Interests relates to a particular Class of Certificates,
each such Class of Uncertificated REMIC I Interests shall be deemed to receive
principal distributions or reimbursements of Realized Losses in the aggregate
amount distributed to the Corresponding Certificates in numerical order (e.g.,
first, to LA-1-1, and then to LA-1-2) until each Uncertificated REMIC I Interest
is reduced to zero.

            During each Interest Accrual Period, each Uncertificated REMIC I
Interest shall accrue interest in an amount equal to the product of the REMIC I
Principal Amount of each such Uncertificated REMIC I Interest and the Weighted
Average Net Mortgage Pass-Through Rate. On each Distribution Date, each
Uncertificated REMIC I Interest shall be deemed to receive distributions in
respect of interest in an amount equal to the sum of (i) the amount of interest
that will actually be distributed in respect of such Uncertificated REMIC I
Interest's Corresponding Certificates (provided, that the interest distributed
in respect of the Class A-1 Certificates shall be allocated to the Class LA-1-1,
Class LA-1-2 and Class LA-1-3 Uncertificated Interests, pro rata, based on
interest accrued; the interest distributed in respect of the Class A-2
Certificates shall be allocated to the Class LA-2-1, Class LA-2-2 and Class
LA-2-3 Uncertificated Interests, pro rata based on interest accrued; the
interest distributed in respect of the Class A-3 Certificates shall be allocated
to the Class LA-3-1 and Class LA-3-2 Uncertificated Interests, pro rata based on
interest accrued; the interest distributed in respect of the Class A-AB
Certificates shall be allocated to the Class LA-AB-1 and Class LA-AB-2
Uncertificated Interests, pro rata based on interest accrued; the interest
distributed in respect of the Class A-4 Certificates shall be allocated to the
Class LA-4-1 and Class LA-4-2 Uncertificated Interests, pro rata based on
interest accrued; the interest distributed in respect of the Class C
Certificates shall be allocated to the Class LC-1 and Class LC-2 Uncertificated
Interests, pro rata based on interest accrued; the interest distributed in
respect of the Class D Certificates shall be allocated to the Class LD-1 and
Class LD-2 Uncertificated Interests, pro rata based on interest accrued; the
interest distributed in respect of the Class E Certificates shall be allocated
to the Class LE-1 and Class LE-2 Uncertificated Interests, pro rata based on
interest accrued; and the interest distributed in respect of the Class G
Certificates shall be allocated to the Class LG-1 and Class LG-2 Uncertificated
Interests, pro rata based on interest accrued) and (ii) the amount of interest
that will actually be distributed in respect of such Uncertificated REMIC I
Interest's corresponding Class A-X Component and, if applicable, Class A-SP
Component. In all events, the amount accrued in respect of each Uncertificated
REMIC I Interest less Uncovered Prepayment Interest Shortfalls allocated thereto
pursuant to Section 4.01(j) and less the amount actually distributed in respect
of such Uncertificated REMIC I Interests shall equal the sum of (i) the Interest
Shortfall Amount allocated to such Uncertificated REMIC I Interest's
Corresponding Certificates (allocated pro rata to the Class LA-1-1, Class LA-1-2
and Class LA-1-3 Uncertificated Interests, in the case of the Class A-1
Certificates; to the Class LA-2-1, Class LA-2-2 and Class LA-2-3 Uncertificated
Interests, in the case of the Class A-2 Certificates; to the Class LA-3-1 and
Class LA-3-2 Uncertificated Interests, in the case of the Class A-3
Certificates; to the Class LA-AB-1 and Class LA-AB-2 Uncertificated Interests,
in the case of the Class A-AB Certificates; to the Class LA-4-1 and Class LA-4-2
Uncertificated Interests, in the case of the Class A-4 Certificates; to the
Class LC-1 and Class LC-2 Uncertificated Interests, in the case of the Class C
Certificates; to the Class LD-1 and Class LD-2 Uncertificated Interests, in the
case of the Class D Certificates; to the Class LE-1 and Class LE-2
Uncertificated Interests, in the case of the Class E Certificates; and to the
Class LG-1 and Class LG-2 Uncertificated Interests, in the case of the Class G
Certificates); and (ii) the Interest Shortfall Amount allocated to the
Corresponding Components of the Class A-X or Class A-SP Certificates and
attributable to such Uncertificated REMIC I Interest. Any amounts remaining in
the REMIC I Distribution Account after payment to the Uncertificated REMIC I
Interests pursuant to this Section 4.01(b) and Section 4.01(d) and payment of
expenses of the Trust Fund shall be distributed to the Class LR Certificates.

            As of any date, payments of principal in respect of the Trust
Mortgage Loans and Realized Losses shall be allocated to the Uncertificated
REMIC I Interests such that the REMIC I Principal Amount after application of
any Realized Loss of each Uncertificated REMIC I Interest less the cumulative
amount of Realized Loss allocated to such Uncertificated REMIC I Interest equals
the Certificate Balance of the Corresponding Certificates after the application
of any Realized Loss with respect thereto and the cumulative amount of Realized
Loss allocated to such Class of Corresponding Certificates; provided, that

            (i) with respect to the Class A-1 Certificates, (A) the REMIC I
      Principal Amount of the Class LA-1-1 Uncertificated Interest shall be the
      lesser of $10,733,000 and the Class Principal Balance of the Class A-1
      Certificates minus $103,008,000 but not less than zero, (B) the REMIC I
      Principal Amount of the Class LA-1-2 Uncertificated Interest shall be the
      lesser of $66,542,000 and the Class Principal Balance of the Class A-1
      Certificates minus $36,466,000 but not less than zero, and (C) the REMIC I
      Principal Amount of the Class LA-1-3 Uncertificated Interest shall be the
      lesser of $36,466,000 and the Class Principal Balance of the Class A-1
      Certificates;

            (ii) with respect to the Class A-2 Certificates, (A) the REMIC I
      Principal Amount for the Class LA-2-1 Uncertificated Interest shall be the
      lesser of $35,088,000 and the Class Principal Balance of the Class A-2
      Certificates minus $90,412,000 but not less than zero, (B) the REMIC I
      Principal Amount for the Class LA-2-2 Uncertificated Interest shall be the
      lesser of $68,129,000 and the Class Principal Balance of the Class A-2
      Certificates minus $22,283,000 but not less than zero, and (C) the REMIC I
      Principal Amount for the Class LA-2-3 Uncertificated Interest shall be the
      lesser of $22,283,000 and the Class Principal Balance of the Class A-2
      Certificates;

            (iii) with respect to the Class A-AB Certificates, (A) the REMIC I
      Principal Amount of the Class LA-AB-1 Uncertificated Interest shall be the
      lesser of $51,625,000 and the Class Principal Balance of the Class A-AB
      Certificates minus $61,475,000 but not less than zero, and (B) the REMIC I
      Principal Amount of the Class LA-AB-2 Uncertificated Interest shall be the
      lesser of $61,475,000 and the Class Principal Balance of the Class A-AB
      Certificates;

            (iv) with respect to the Class A-3 Certificates, (A) the REMIC I
      Principal Amount for the Class LA-3-1 Uncertificated Interest shall be the
      lesser of $162,864,000 and the Class Principal Balance of the Class A-3
      Certificates minus $18,742,000 but not less than zero, and (B) the REMIC I
      Principal Amount for the Class LA-3-2 Uncertificated Interest shall be the
      lesser of $18,742,000 and the Class Principal Balance of the Class A-3
      Certificates;

            (v) with respect to the Class A-4 Certificates, (A) the REMIC I
      Principal Amount for the Class LA-4-1 Uncertificated Interest shall be the
      lesser of $110,460,000 and the Class Principal Balance of the Class A-4
      Certificates minus $563,887,000 but not less than zero, and (B) the REMIC
      I Principal Amount for the Class LA-4-2 Uncertificated Interest shall be
      the lesser of $563,887,000 and the Class Principal Balance of the Class
      A-4 Certificates;

            (vi) with respect to the Class C Certificates, (A) the REMIC I
      Principal Amount for the Class LC-1 Uncertificated Interest shall be the
      lesser of $871,000 and the Class Principal Balance of the Class C
      Certificates minus $12,345,000 but not less than zero, and (B) the REMIC I
      Principal Amount for the Class LC-2 Uncertificated Interest shall be the
      lesser of $12,345,000 and the Class Principal Balance of the Class C
      Certificates;

            (vii) with respect to the Class D Certificates, (A) the REMIC I
      Principal Amount for the Class LD-1 Uncertificated Interest shall be the
      lesser of $6,014,000 and the Class Principal Balance of the Class D
      Certificates minus $18,529,000 but not less than zero, and (B) the REMIC I
      Principal Amount for the Class LD-2 Uncertificated Interest shall be the
      lesser of $18,529,000 and the Class Principal Balance of the Class D
      Certificates;

            (viii) with respect to the Class E Certificates, (A) the REMIC I
      Principal Amount for the Class LE-1 Uncertificated Interest shall be the
      lesser of $2,308,000 and the Class Principal Balance of the Class E
      Certificates minus $16,572,000 but not less than zero, and (B) the REMIC I
      Principal Amount for the Class LE-2 Uncertificated Interest shall be the
      lesser of $16,572,000 and the Class Principal Balance of the Class E
      Certificates; and

            (ix) with respect to the Class G Certificates, (A) the REMIC I
      Principal Amount for the Class LG-1 Uncertificated Interest shall be the
      lesser of $12,629,000 and the Class Principal Balance of the Class G
      Certificates minus $2,475,000 but not less than zero, and (B) the REMIC I
      Principal Amount for the Class LG-2 Uncertificated Interest shall be the
      lesser of $2,475,000 and the Class Principal Balance of the Class G
      Certificates.

            Interest Shortfall Amounts allocated to the Class A-X and Class A-SP
Certificates shall be attributed to the Uncertificated REMIC I Interests to the
extent of their Related Components, pro rata, based on interest accrued on such
Components. Any amounts so allocated shall have the same seniority as interest
payments due on the Class A-X and Class A-SP Certificates. Prepayment Interest
Shortfalls allocated to the Sequential Pay Certificates shall be allocated to
each Class of corresponding Uncertificated REMIC I Interests pro rata on the
basis of their respective interest entitlements.

            The initial REMIC I Principal Amount of each Uncertificated REMIC I
Interest equals the respective Original REMIC I Principal Amount.

            (c) [Reserved]

            (d) On each Master Servicer Remittance Date, the Master Servicer
shall remit all Yield Maintenance Charges to the Trustee for deposit in the
REMIC I Distribution Account for payment to the Uncertificated REMIC I Regular
Interests. On each Distribution Date, the Trustee shall withdraw from the REMIC
I Distribution Account an aggregate amount equal to all such Yield Maintenance
Charges actually collected on the Trust Mortgage Loans or any REO Trust Mortgage
Loans during the related Collection Period and shall distribute such amount to
the Uncertificated REMIC I Regular Interests, pro rata in proportion to their
outstanding REMIC I Principal Amounts.

            (e) On each Distribution Date, the Trustee shall withdraw any
amounts on deposit in the REMIC II Distribution Account that represent Yield
Maintenance Charges actually collected on the Trust Mortgage Loans or REO Trust
Mortgage Loans during the related Collection Period and remitted in respect of
the Uncertificated REMIC I Interests pursuant to Section 4.01(d), and shall
distribute such amounts to the Class A-1, Class A-2, Class A-3, Class A-AB,
Class A-4, Class A-J, Class B, Class C, Class D, Class E, Class F, Class G and
Class H Certificates, in an amount equal to the product of (a) a fraction whose
numerator is the amount distributed as principal to such Class on such
Distribution Date, and whose denominator is the total amount distributed as
principal to the Class A-1, Class A-2, Class A-3, Class A-AB, Class A-4, 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 and Class P Certificates on such
Distribution Date, (b) the Base Interest Fraction for the related Principal
Prepayment and such Class of Certificates and (c) the aggregate amount of Yield
Maintenance Charges collected on such Principal Prepayment during the related
Collection Period. Any Yield Maintenance Charges collected during the related
Collection Period remaining after such distributions shall be distributed to the
Holders of the Class A-X Certificates.

            All distributions of Yield Maintenance Charges collected on or prior
to the related Determination Date that represent Yield Maintenance Charges
actually collected on the JFK Medical Pavilion II Loan shall be deemed to be
distributed from the JFK Medical Pavilion II Loan REMIC to the Lower Tier REMIC
in respect of the JFK Medical Pavilion II Loan REMIC Regular Interest.

            (f) On any applicable Distribution Date, (i) any Excess Interest
collected for such Distribution Date shall be distributed from the Grantor Trust
Distribution Account to the Class V Certificates and (ii) any amounts collected
for such Distribution Date in respect of the JFK Medical Pavilion II Loan REMIC
Residual Interest shall be distributed from the Grantor Trust Distribution
Account to the Class LR Certificates.

            (g) 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(h), 4.01(i) 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 Trustee with written wiring
instructions 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 Realized Loss
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
Trustee 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
Depositor, the Master Servicer, the Special Servicer, the Underwriters or the
Initial Purchasers shall have any responsibility therefor except as otherwise
provided by this Agreement or applicable law.

            (h) Except as otherwise provided in Section 9.01, whenever the
Trustee expects that the final distribution with respect to any Class of
Certificates (determined without regard to any possible future reimbursement of
any amount of Realized Loss previously allocated to such Class of Certificates)
will be made on the next Distribution Date, the Trustee shall, not less than
thirty 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 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(h) shall not have been surrendered for
cancellation within six months after the time specified in such notice, the
Trustee 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 Certificates shall not have been surrendered for
cancellation, the Trustee, directly or through an agent, shall take such steps
to contact the remaining non-tendering 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 Trustee as a result of such
Certificateholder's failure to surrender its Certificate(s) for final payment
thereof in accordance with this Section 4.01(h).

            (i) Distributions in reimbursement of Realized Loss previously
allocated to the Regular 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 Realized Loss previously allocated to a Class of 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, and such amounts shall be deemed to have been distributed from REMIC I
to REMIC II in each case as such Realized Loss was allocated to the REMIC I
pursuant to Section 4.04(c). 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 Trustee shall attempt to contact such prior Holder in the
manner contemplated by Section 4.01(h) as if such Holder had failed to surrender
its Certificates.

            (j) Shortfalls in the Available Distribution Amount on any
Distribution Date resulting from Uncovered Prepayment Interest Shortfall Amounts
shall be allocated to each Class of Regular Certificates, pro rata, based on the
Accrued Certificate Interest Amount distributable to each such Class on such
Distribution Date. Uncovered Prepayment Interest Shortfall Amounts so allocated
to the Regular Certificates (in the case of the Class A-X and Class A-SP
Certificates, pro rata, to the related Components based on interest accrued)
shall be allocated to the Corresponding Uncertificated REMIC I Interests (and
pro rata to the Uncertificated REMIC I Interests that relate to the Class of
Regular Certificates that are allocated such Uncovered Prepayment Interest
Shortfall Amount, based on interest accrued).

            (k) Shortfalls in the Available Distribution Amount resulting from
unanticipated Trust Fund indemnification expenses incurred pursuant to Section
6.03 and Section 8.05 shall be allocated to the most subordinate Class of
Certificates then outstanding, until the Certificate Balance thereof equals
zero, and then to the next most subordinate Class of Certificate then
outstanding.

            (l) The JFK Medical Pavilion II Loan REMIC Regular Interest's share
of all payments made on the JFK Medical Pavilion II Loan (other than amounts
distributable to the JFK Medical Pavilion II Loan REMIC Residual Interest in
accordance with the REMIC Declaration) shall be deemed to be paid to REMIC I (in
the case of interest, at the Mortgage Rate of such Mortgage Loan) before
payments are made to the holder of the Uncertificated REMIC I Interests, and
shall be treated as principal, interest, Yield Maintenance Charges, as the case
may be, based on these characterizations with respect to such Mortgage Loan (or
related REO Property), except where expressly noted and, in addition, any
payment of principal on or reduction in the Stated Principal Balance of such
Mortgage Loan shall reduce the principal balance of the JFK Medical Pavilion II
Loan REMIC Regular Interest. Any payments on or with respect to the JFK Medical
Pavilion II Loan in excess of the principal, interest, Yield Maintenance Charges
distributable on the JFK Medical Pavilion II Loan REMIC Regular Interest shall
be distributable to the Class LR Certificates in respect of amounts distributed
on the JFK Medical Pavilion II Loan REMIC Residual Interest. Master Servicing
Fees and Trustee Fees with respect to the JFK Medical Pavilion II Loan shall be
deemed paid by REMIC I in determining the Net Mortgage Rate of the JFK Medical
Pavilion II Loan REMIC Regular Interest, and all other servicing compensation
with respect to the JFK Medical Pavilion II Loan payable to the Master Servicer
or the Special Servicer shall be deemed payable by the JFK Medical Pavilion II
Loan REMIC.

            Section 4.02 Statements to Certificateholders; Certain Other Reports

            (a) Based solely on information provided to the Trustee by the
Master Servicer pursuant to Section 3.12 and this Section 4.02, the Trustee
shall prepare (or cause to be prepared) and, on each Distribution Date, provide
or make available electronically (or, upon request, by first class mail) to each
Privileged Person a statement substantially in the form of, and containing the
information set forth in, Exhibit E hereto (the "Trustee Report"), detailing the
distributions on such Distribution Date and the performance, both in the
aggregate and individually to the extent available, of the Trust Mortgage Loans
and the Mortgaged Properties; provided that the Trustee need not deliver to the
Depositor, the Master Servicer, the Special Servicer, the Underwriters, the
Rating Agencies or the Series 2005-C1 Directing Certificateholder any Trustee
Report that has been made available to such Person via the Trustee's internet
website as provided below; and provided, further, that the Trustee 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 Trustee Report shall be
deemed to have agreed to keep confidential the information therein until such
Trustee Report is filed with the Commission, and the Trustee Report (or, if
presented via the Trustee's internet website, such website) shall bear a legend
to the following effect:

            No recipient shall use or disclose the information contained [in
            this statement/report/file] [on this website] in any manner which
            could result in a violation of any provision of the Securities Act
            of 1933 or the Securities Exchange Act of 1934 or would require
            registration of any Non-Registered Certificates pursuant to Section
            5 of the Securities Act of 1933.

            The Trustee 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 Servicer provided for herein, and the
Trustee shall not be in default hereunder due to a delay in providing the
Certificateholder Reports caused by the Master Servicer's or the Special
Servicer's failure to timely deliver any information or reports hereunder. None
of the Master Servicer, the Special Servicer or the Trustee 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 the Master Servicer, the Special Servicer or the Trustee, as
applicable. None of the Trustee, the Master Servicer or the Special Servicer
shall have any obligation to verify the accuracy or completeness of any
information provided by a Borrower, a third party or each other.

            The Trustee shall make available each month, to any interested
person, the related Trustee Report via its internet website initially located at
"www.ctslink.com". In addition, the Trustee shall make available each month, via
its internet website to the extent received by the Trustee, on a restricted
basis solely to Privileged Persons, (i) the Unrestricted Master Servicer
Reports, (ii) the CMSA Loan Periodic Update File, the CMSA Loan Setup File, CMSA
Bond Level File and the CMSA Collateral Summary File, and (iii) as a convenience
to interested persons (and not in furtherance of the distribution thereof under
the securities laws), the Prospectus and this Agreement. Upon notification by
the Depositor that CSFB LLC has sold the Non-Registered Certificates to
unaffiliated third parties, the Trustee shall remove the restriction provided
for in the preceding sentence and shall make such reports and documents
available to any interested person. The Trustee shall also make available each
month, on a restricted basis to any Privileged Person via its internet website,
to the extent received by the Trustee, (i) the Restricted Master Servicer
Reports, (ii) the CMSA Property File and (iii) 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 information regarding the Trust on the Trustee's
internet website shall be deemed to have agreed to keep confidential such
information until such information is filed with the Commission, and the
Trustee's internet website shall bear a legend to the following effect:

            No recipient shall use or disclose the information contained on this
            website in any manner which could result in a violation of any
            provision of the Securities Act of 1933 or the Securities Exchange
            Act of 1934 or would require registration of any Non-Registered
            Certificates pursuant to Section 5 of the Securities Act of 1933.

            The Trustee makes no representations or warranties as to the
accuracy or completeness or any report, document or other information made
available on its internet website and assumes no responsibility therefor. In
addition, the Trustee may disclaim responsibility for any information
distributed by the Trustee for which it is not the original source.

            In connection with providing access to the Trustee's internet
website, the Trustee may require registration and the acceptance of a
disclaimer. The Trustee shall not be liable for the dissemination of information
in accordance herewith. Questions regarding the Trustee's internet website can
be directed to the Trustee's CMBS customer service desk at (301) 815-6600 or
such other number as the Trustee may hereinafter specify.

            The Trustee 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 Trustee Report and may affix thereto any
disclaimer it deems appropriate in its reasonable discretion (without suggesting
liability on the part of any other party hereto).

            (b) Within a reasonable period of time after the end of each
calendar year, the Trustee shall prepare, or cause to be prepared, and mail to
each Person who at any time during the calendar year was a Certificateholder (i)
a statement containing the aggregate information set forth on pages 2 and 3 of
Exhibit E hereto for such calendar year or applicable portion thereof during
which such person was a Certificateholder and (ii) such other customary
information as the Trustee deems necessary or desirable for Certificateholders
to prepare their federal, state and local income tax returns, including the
amount of original issue discount accrued on the Certificates, if applicable.
The obligations of the Trustee in the immediately preceding sentence shall be
deemed to have been satisfied to the extent that substantially comparable
information shall be provided by the Trustee pursuant to any requirements of the
Code. As soon as practicable following the request of any Certificateholder in
writing, the Trustee shall furnish to such Certificateholder such information
regarding the Trust Mortgage Loans and the Mortgaged Properties as such
Certificateholder may reasonably request and, as has been furnished to, or may
otherwise be in the possession of, the Trustee. The Master Servicer and the
Special Servicer shall promptly provide to the Depositor and the Trustee such
information regarding the Trust Mortgage Loans and the Mortgaged Properties as
such party may reasonably request and that has been furnished to, or may
otherwise be in the possession of, the Master Servicer or the Special Servicer,
as the case may be.

            Section 4.03 P&I Advances

            (a) On or before 1:00 p.m., New York City time, on each Master
Servicer Remittance Date, the Master Servicer shall, subject to Section 4.03(c),
either (i) remit from its own funds to the Trustee for deposit into the
Distribution Account an amount equal to the aggregate amount of P&I Advances, if
any, to be made by the Master Servicer in respect of the Mortgage Pool for the
related Distribution Date, (ii) apply amounts held in the Collection Account for
future distribution to Certificateholders in subsequent months in discharge of
any such obligation to make such P&I Advances, or (iii) make such P&I Advances
in the form of any combination of (i) and (ii) aggregating the total amount of
such P&I Advances to be made by the Master Servicer. Any amounts held in the
Collection Account for future distribution and so used to make P&I Advances in
respect of the Mortgage Pool shall be appropriately reflected in the Master
Servicer's records and replaced by the Master Servicer by deposit in the
Collection Account prior to the next succeeding Master Servicer Remittance Date
(to the extent not previously replaced through the deposit of Late Collections
of the delinquent principal and interest in respect of which such P&I Advances
were made). If, as of 3:30 p.m., New York City time, on any Master Servicer
Remittance Date, the Master Servicer shall not have made any P&I Advance
required to be made by it in respect of the Mortgage Pool on such date pursuant
to this Section 4.03(a) (and shall not have delivered to the Trustee the
Officer's Certificate and other documentation related to a determination of
nonrecoverability of a P&I Advance pursuant to Section 4.03(c)) or, to the
actual knowledge of a Responsible Officer of the Trustee, shall not have
remitted any other amounts required to be remitted by the Master Servicer on
such date, then the Trustee shall provide notice of such failure to the Master
Servicer by facsimile transmission as soon as possible, but in any event before
5:00 p.m., New York City time, on such Master Servicer Remittance Date. If after
such notice the Trustee does not receive the full amount of such P&I Advances in
respect of the Mortgage Pool by 11:00 a.m., New York City time, on the related
Distribution Date, then the Trustee shall (not later than 12:00 noon, New York
City time, on the related Distribution Date) make the portion of such P&I
Advances in respect of the Mortgage Pool that was required to be, but was not,
made or remitted, as the case may be, by the Master Servicer with respect to the
related Distribution Date.

            (b) The aggregate amount of P&I Advances to be made by the Master
Servicer in respect of the Mortgage Pool for any Distribution Date, subject to
Section 4.03(c) below, shall equal the aggregate of all Monthly Payments (other
than Balloon Payments) and any Assumed Scheduled Payments, in each case net of
any related Master Servicing Fees and Workout Fees, due or deemed due, as the
case may be, in respect of the Trust Mortgage Loans (including Balloon Trust
Mortgage Loans delinquent as to their respective Balloon Payments) and any REO
Trust Mortgage Loans on their respective Due Dates during the related Collection
Period, in each case to the extent such amount was not paid by or on behalf of
the related Borrower or otherwise collected by or on behalf of the Trust as of
the close of business on the related Determination Date; provided that, if an
Appraisal Reduction Amount exists with respect to any Trust Mortgage Loan or REO
Trust Mortgage Loan, then the interest portion of any P&I Advance required to be
made in respect of such Trust Mortgage Loan or REO Trust Mortgage Loan, as the
case may be, for the related Distribution Date shall be reduced (it being herein
acknowledged that there shall be no reduction in the principal portion of such
P&I Advance) to equal the product of (i) the amount of the interest portion of
such P&I Advance that would otherwise be required to be made in respect of such
Trust Mortgage Loan or REO Trust Mortgage Loan, as the case may be, for such
Distribution Date without regard to this proviso, multiplied by (ii) a fraction,
expressed as a percentage, the numerator of which shall equal the Stated
Principal Balance of such Trust Mortgage Loan or REO Trust Mortgage Loan, as the
case may be, immediately prior to such Distribution Date, net of the related
Appraisal Reduction Amount (in the case of an A Loan in a Mortgage Loan
Combination, to the extent allocated to such A Loan herein), and the denominator
of which shall equal the Stated Principal Balance of such Trust Mortgage Loan or
REO Trust Mortgage Loan, as the case may be, immediately prior to such
Distribution Date.

            (c) Notwithstanding anything herein to the contrary, no P&I Advance
shall be required to be made hereunder if such P&I Advance would, if made,
constitute a Nonrecoverable P&I Advance. Also, notwithstanding anything herein
to the contrary, no P&I Advance shall be required to be made hereunder in
respect of any CBA B Loan or any successor REO B Loan.

            (d) Subject to the last two sentences of this Section 4.03(d), the
Master Servicer and the Trustee shall each be entitled to receive interest at
the Reimbursement Rate in effect from time to time, accrued on the amount of
each P&I Advance made thereby (with its own funds), for so long as such P&I
Advance is outstanding (or, if such P&I Advance was made prior to the end of any
grace period applicable to the subject delinquent Monthly Payment, for so long
as such P&I Advance is outstanding following the end of such grace period). Such
interest with respect to any P&I Advance shall be payable: (i) first, out of any
Penalty Charges subsequently collected on the particular Trust Mortgage Loan or
REO Trust Mortgage Loan as to which such P&I Advance relates; and (ii) then,
after such P&I Advance is reimbursed, but only if and to the extent that such
Penalty Charges are insufficient to cover such Advance Interest, out of general
collections on the Trust Mortgage Loans and REO Properties on deposit in the
Master Servicer's Collection Account; provided that interest earned on any P&I
Advances made with respect to the A Loan of a Mortgage Loan Combination or any
successor REO Trust Mortgage Loan in respect thereof shall be payable out of the
related Mortgage Loan Combination Custodial Account, to the maximum extent
permitted by the related Intercreditor Agreement, before being paid out of
general collections on the Mortgage Pool on deposit in the Collection Account.
The Master Servicer shall reimburse itself or the Trustee, as applicable, for
any outstanding P&I Advance made thereby with respect to any Trust Mortgage Loan
or REO Trust Mortgage Loan as soon as practicable after funds available for such
purpose are deposited in the Master Servicer's Collection Account.
Notwithstanding the foregoing, upon a determination that a P&I Advance
previously made with respect to the Mortgage Pool is a Nonrecoverable P&I
Advance, the Master Servicer may reimburse itself or the Trustee, as applicable,
immediately from general collections in the Collection Account. Notwithstanding
the foregoing, instead of obtaining reimbursement out of general collections on
the Mortgage Pool immediately (as contemplated by Section 3.05(a)(vi)), the
Master Servicer or the Trustee, as applicable, may, in its sole discretion,
elect to obtain reimbursement for such Nonrecoverable P&I Advance over a period
of time (not to exceed 12 months) and the unreimbursed portion of such P&I
Advance will accrue interest at the Reimbursement Rate in effect from time to
time. At any time after such a determination to obtain reimbursement over time
in accordance with the preceding sentence, the Master Servicer or the Trustee,
as applicable, may, in its sole discretion, decide to obtain reimbursement
immediately. The Master Servicer's or the Trustee's, as applicable, agreement to
defer reimbursement of any Nonrecoverable P&I Advance as set forth above is an
accommodation to the Certificateholders and shall not be construed as an
obligation on the part of the Master Servicer or the Trustee, as applicable, or
a right of the Certificateholders. Nothing herein shall be deemed to create in
the Certificateholders a right to prior payment of distributions over the
Servicer's or the Trustee's, as applicable, right to reimbursement for P&I
Advances (deferred or otherwise). The fact that a decision to recover such
Nonrecoverable P&I Advance over time, or not to do so, benefits some Classes of
Certificateholders to the detriment of other Classes shall not constitute a
violation of the Servicing Standard by the Master Servicer or a breach of any
fiduciary duty owed to the Certificateholders by the Trustee, or a breach of any
other contractual obligation owed to the Certificateholders by any party to this
Agreement. 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.

            Section 4.04 Allocation of Realized Losses and Additional Trust Fund
Expenses

            (a) On each Distribution Date, following the distributions to
Certificateholders to be made on such date pursuant to Sections 4.01, the
Trustee shall determine the amount, if any, by which (i) the then aggregate of
the Class Principal Balances of all the Classes of Principal Balance
Certificates, exceeds (ii) the aggregate Stated Principal Balance (for purposes
of this calculation only, not giving effect to any reductions of the Stated
Principal Balance for payments of principal collected on the Trust Mortgage
Loans that were used to reimburse any Nonrecoverable Advances and
Workout-Delayed Reimbursement Amounts pursuant to Section 3.05(a)(vi), other
than Total Principal Distribution Amounts used to reimburse Nonrecoverable
Advances or Workout-Delayed Reimbursement Amounts with respect to Trust Mortgage
Loans for which a Final Recovery Determination has been made) of the Mortgage
Pool that will be outstanding immediately following such Distribution Date. If
such excess does exist, then the respective Class Principal Balances of the
Principal Balance Certificates will be reduced sequentially, in the following
order, until such excess is reduced to zero: first, the Class Principal Balance
of the Class P Certificates, until such Class Principal Balance is reduced to
zero; second, the Class Principal Balance of the Class O Certificates, until
such Class Principal Balance is reduced to zero; third, the Class Principal
Balance of the Class N Certificates, until such Class Principal Balance is
reduced to zero; fourth, the Class Principal Balance of the Class M
Certificates, until such Class Principal Balance is reduced to zero; fifth, the
Class Principal Balance of the Class L Certificates, until such Class Principal
Balance is reduced to zero; sixth, the Class Principal Balance of the Class K
Certificates, until such Class Principal Balance is reduced to zero; seventh,
the Class Principal Balance of the Class J Certificates, until such Class
Principal Balance is reduced to zero; eighth, the Class Principal Balance of the
Class H Certificates, until such Class Principal Balance is reduced to zero;
ninth, the Class Principal Balance of the Class G Certificates, until such Class
Principal Balance is reduced to zero; tenth, the Class Principal Balance of the
Class F Certificates, until such Class Principal Balance is reduced to zero;
eleventh, the Class Principal Balance of the Class E Certificates, until such
Class Principal Balance is reduced to zero; twelfth, the Class Principal Balance
of the Class D Certificates, until such Class Principal Balance is reduced to
zero; thirteenth, the Class Principal Balance of the Class C Certificates, until
such Class Principal Balance is reduced to zero; fourteenth, the Class Principal
Balance of the Class B Certificates, until such Class Principal Balance is
reduced to zero; fifteenth, the Class Principal Balance of the Class A-J
Certificates, until such Class Principal Balance is reduced to zero; and
sixteenth, the respective Class Principal Balances of the Class A-1
Certificates, the Class A-2 Certificates, Class A-3 Certificates, Class A-AB
Certificates and Class A-4 Certificates (on a pro rata basis in accordance with
the relative sizes of such Class Principal Balances), until such Class Principal
Balances are reduced to zero. All such reductions in the Class Principal
Balances of the respective Classes of the Principal Balance Certificates shall
constitute allocations of Realized Losses and Additional Trust Fund Expenses.
Any Realized Loss allocated to a Class of Certificates will be allocated among
respective Certificates of such Class in proportion to the Percentage Interests
evidenced thereby.

            (b) [Reserved]

            (c) With respect to any Distribution Date, any Realized Loss
allocated to a Class of Certificates pursuant to Section 4.04(b) with respect to
such Distribution Date shall reduce the REMIC I Principal Amounts of the
Corresponding Uncertificated REMIC I Interest as a write-off; provided that any
Realized Loss allocated to the Class A-1, Class A-2, Class A-AB, Class A-3,
Class A-4, Class C, Class D, Class E and Class G Certificates shall be allocated
as set forth in Section 4.01(b).

            Section 4.05 Calculations

            Provided that the Trustee receives the necessary information from
the Master Servicer and/or the Special Servicer, the Trustee shall be
responsible for performing all calculations necessary in connection with the
actual and deemed distributions to be made pursuant to Section 4.01, the
preparation of the Trustee Reports pursuant to Section 4.02(a) and the actual
and deemed allocations of Realized Losses and Additional Trust Fund Expenses to
be made pursuant to Section 4.04. The Trustee shall calculate the Available
Distribution Amount for each Distribution Date and shall allocate such amounts
among Certificateholders in accordance with this Agreement. Absent actual
knowledge of an error therein, the Trustee shall have no obligation to
recompute, recalculate or otherwise verify any information provided to it by the
Master Servicer. The calculations by the Trustee contemplated by this Section
4.05 shall, in the absence of manifest error, be presumptively deemed correct
for all purposes hereunder.

            Section 4.06 Grantor Trust Reporting

            The parties intend that the portions of the Trust Fund consisting of
(i) the Excess Interest and related amounts in the Grantor Trust Distribution
Account and (ii) the JFK Medical Pavilion II Loan REMIC Residual Interest and
related amounts in the Grantor Trust Distribution Account shall be treated as a
"grantor trust" under the Code, and the provisions thereof shall be interpreted
consistently with this intention. In furtherance of such intention, the Trustee
shall furnish or cause to be furnished to the Class V and Class LR
Certificateholders and shall file or cause to be filed with the Internal Revenue
Service together with Form 1041 or such other form as may be applicable and
shall furnish or cause to be furnished to the Holders of the Class V and Class
LR Certificates, their allocable share of income with respect to Excess Interest
or the JFK Medical Pavilion II Loan REMIC Residual Interest, respectively, as
such amounts accrue or are received, as the case may be.

                                    ARTICLE V

                                THE CERTIFICATES

            Section 5.01 The Certificates

            (a) The Certificates shall consist of 25 Classes with the following
respective alphabetic or alphanumeric Class designations: "A-X", "A-SP", "A-1",
"A-2", "A-3", "A-AB", "A-4", "A- J", "B", "C", "D", "E", "F", "G", "H", "J",
"K", "L", "M", "N", "O", "P", "R", "LR" 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-5; 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
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 Regular
Certificates will be issuable only in denominations corresponding to initial
Certificate 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
and any whole dollar denomination in excess thereof. The Class R, Class LR 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 Trustee in its capacity as trustee by an authorized
signatory. Certificates bearing the manual or facsimile signatures of
individuals who were at any time the authorized signatory of the Trustee 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 for Certificate transfer purposes at Wells Fargo
Center, Sixth and Marquette, Minneapolis, Minnesota, 55479-0113, and for all
other purposes at 9062 Old Annapolis Road, Columbia, Maryland 21045-1951) may
prescribe, the Certificate Registrar shall provide for the registration of
Certificates and of transfers and exchanges of Certificates as herein provided.
The Trustee 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 Trustee 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 Trustee may prescribe; provided that the
Trustee shall not be relieved of any of its duties or responsibilities hereunder
as Certificate Registrar by reason of such appointment. If the Trustee resigns
or is removed in accordance with the terms hereof, the successor trustee shall
immediately succeed to its predecessor's duties as Certificate Registrar. The
Depositor, the Master Servicer and the Special Servicer 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
Trustee, 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 Trustee 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 Trustee's receipt of
such request). Every Certificateholder, by receiving such access, acknowledges
that neither the Certificate Registrar nor the Trustee 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 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 Servicer, the Special Servicer, 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.

            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 Trustee 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 Trustee 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 Class A-X, Class A-SP, Class
E, Class F, Class G, Class H, Class J, Class K, Class L, Class M, Class N, Class
O or Class P, as applicable, Certificates to be transferred. Upon delivery to
the Trustee of such certifications and such orders and instructions, the
Trustee, 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 Class A-X, Class A-SP, Class E, Class F, Class G, Class H,
Class J, Class K, Class L, Class M, Class N, Class O or Class P, as applicable,
Certificates, 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 Trustee 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 Trustee 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 Class A-X, Class A-SP, Class E, Class F, Class G, Class H,
Class J, Class K, Class L, Class M, Class N, Class O or Class P Certificates, as
applicable, to be transferred. Upon delivery to the Trustee of such
certifications and such orders and instructions, the Trustee, 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 Class
A-X, Class A-SP, Class E, Class F, Class G, Class H, Class J, Class K, Class L,
Class M, Class N, Class O or Class P, as applicable, Certificates, 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
Trustee 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 Trustee 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 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.

            None of the Depositor, the Trustee 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, CSFB
LLC, the Trustee, the Master Servicer, the Special Servicer 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
Sections 406 or 407 of ERISA or Section 4975 of the Code or Similar Law or would
result in the imposition of an excise tax under Section 4975 of the Code or
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 (ii) 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, Section 4975 of the Code and Similar Law by reason
of Sections I and III of Prohibited Transaction Class Exemption 95-60 or
comparable exemption under Similar Law; or (iii) in the case of a Non-Registered
Certificate (other than a Class R, Class LR 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 (or comparable
exemption under Similar Law), 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, any Exemption-Favored Party, the Depositor, any Mortgage
Loan Seller, the Master Servicer, the Special Servicer, any Sub-Servicer or any
Borrower with respect to Trust Mortgage Loans constituting more than 5% of the
aggregate unamortized principal of all the Trust Mortgage 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) a certification of
facts and an Opinion of Counsel (which Opinion of Counsel shall not be an
expense of the Trustee, the Certificate Registrar or the Trust) which otherwise
establish to the reasonable satisfaction of the Trustee that such transfer will
not result in a violation of Sections 406 or 407 of ERISA, Section 4975 of the
Code or Similar Law or result in the imposition of an excise tax under Section
4975 of the Code or 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
(ii) 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, Section 4975
of the Code and Similar Law by reason of Sections I and III of Prohibited
Transaction Class Exemption 95-60 (or comparable exemption under Similar Law);
or (iii) if such Certificate is not a Class R, Class LR 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 (or comparable exemption under Similar
Law), 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
Depositor, any Mortgage Loan Seller, the Master Servicer, the Special Servicer,
any Sub-Servicer or any Borrower with respect to Trust Mortgage Loans
constituting more than 5% of the aggregate unamortized principal of all the
Trust Mortgage 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) 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, Section 4975 of the Code or Similar Law or result in the imposition of
an excise tax under Section 4975 of the Code or 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 (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, Section 4975 of the Code and Similar Law.

            (d) (i) Each Person who has or acquires any Ownership Interest in a
Class R or Class LR 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 Trustee 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 or Class LR Certificate are expressly subject to the following
provisions:

                  (A) Each Person holding or acquiring any Ownership Interest in
            a Class R or Class LR Certificate shall be a Permitted Transferee
            and shall promptly notify the Trustee 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 or Class LR Certificate, the Certificate
            Registrar shall require delivery to it, and shall not register the
            Transfer of any Class R or Class LR 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 or Class LR
            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 or Class LR 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 Trustee 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 or Class LR 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 or Class LR
            Certificate and (2) not to transfer its Ownership Interest in such
            Class R or Class LR Certificate unless it provides to the
            Certificate Registrar and the Trustee 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 or Class LR Certificate, by purchasing such Ownership
            Interest, agrees to give the Trustee 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 or Class LR Certificate
            if it is, or is holding an Ownership Interest in a Class R or Class
            LR Certificate on behalf of, a "pass-through interest holder".

            (ii) If any purported Transferee shall become a Holder of a Class R
      or Class LR Certificate in violation of the provisions of this Section
      5.02(d), then the last preceding Holder of such Class R or Class LR
      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 or Class LR Certificate. None of the Depositor, the
      Trustee or the Certificate Registrar shall be under any liability to any
      Person for any registration of Transfer of a Class R or Class LR
      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.

            If any purported Transferee shall become a Holder of a Class R or
Class LR 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 or Class LR Certificate as described in the preceding
paragraph of this clause (d)(ii) shall be invalid, illegal or unenforceable, the
Trustee shall have the right, but not the obligation, to cause the transfer of
such Class R or Class LR Certificate to a Permitted Transferee selected by the
Trustee on such terms as the Trustee may choose, and the Trustee shall not be
liable to any Person having an Ownership Interest in such Class R or Class LR
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 or
Class LR Certificate in accordance with the instructions of the Trustee. Such
Permitted Transferee may be the Trustee itself or any Affiliate of the Trustee.

            (iii) The Trustee 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 or Class LR
      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 a Class R
      or Class LR Certificate 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 or Class LR 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
      Trustee all information in its possession necessary for the Trustee to
      discharge such obligation. The Person holding such Ownership Interest
      shall be responsible for the reasonable compensation of the Trustee 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 Trustee 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, 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 Trustee or the Trust), to the
            effect that doing so will not (1) cause any REMIC Pool to cease to
            qualify as a REMIC or be subject to an entity-level tax caused by
            the Transfer of any Class R or Class LR 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 or Class LR 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 Trustee 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 Trustee 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 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 and at the expense
of the requesting party, an updated copy of the Certificate Register.

            Section 5.03 Book-Entry Certificates

            (a) The Regular 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.

            (b) Except as expressly provided to the contrary herein, the
Depositor, the Master Servicer, the 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, the Master Servicer, the Special Servicer, the Trustee 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 Trustee 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 Trustee 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 reasonable expenses (including the reasonable 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 Servicer, the Special Servicer, the Trustee, 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, the Master Servicer, the Special
Servicer, the Trustee, 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 Trustee 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 Trustee and shall specify the Class and Certificate
Balance or Certificate Notional Amount, as the case may be, of the Book-Entry
Certificate beneficially owned; provided, however, that the Trustee shall not
knowingly recognize such Person as a Certificate Owner if such Person, to the
knowledge of a Responsible Officer of the Trustee, 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 Trustee 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. The Trustee
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 Trustee.

                                   ARTICLE VI

           THE DEPOSITOR, THE MASTER SERVICER AND THE SPECIAL SERVICER

            Section 6.01 Liability of the Depositor, the Master Servicer and the
Special Servicer

            The Depositor, the Master Servicer and the Special Servicer shall be
liable in accordance herewith only to the extent of the respective obligations
specifically imposed upon and undertaken by the Depositor, the Master Servicer
and the Special Servicer herein.

            Section 6.02 Merger, Consolidation or Conversion of the Depositor,
the Master Servicer or the Special Servicer

            (a) Subject to subsection (b) below, the Depositor, the Master
Servicer and the 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 validity and
enforceability of the Mortgage Loans and to perform its respective duties under
this Agreement.

            (b) The Depositor, the Master Servicer and the Special Servicer each
may 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, the Master Servicer or the Special Servicer shall be a
party, or any Person succeeding to the business of the Depositor, the Master
Servicer or the Special Servicer, shall be the successor of the Depositor, the
Master Servicer and the 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, the Master Servicer or the Special Servicer, 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 the 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).

            Section 6.03 Limitation on Liability of the Trustee, the Depositor,
the Master Servicer, the Special Servicer and Others

            (a) None of the Depositor, the Trustee, the Master Servicer, the
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 holders 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 the Depositor, the Trustee, the Master Servicer
or the Special Servicer against any breach of warranties or representations made
herein or any liability which would otherwise be imposed by reason of willful
misfeasance, bad faith or negligence in the performance of duties or by reason
of negligent disregard of obligations and duties hereunder. The Depositor, the
Master Servicer, the Special Servicer, the Trustee and any Affiliate, director,
partner, member, manager, shareholder, officer, employee or agent of the
Depositor, the Trustee, the Master Servicer or the 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, the Master Servicer, the Special Servicer, the
Trustee 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) out of the
Collection Account or the Distribution Account, as applicable in accordance with
Section 3.05 (or, insofar as a Mortgage Loan Combination is involved, and to the
extent permitted by the related Intercreditor Agreement, out of amounts
attributable to such Mortgage Loan Combination on deposit in the related
Mortgage Loan Combination Custodial Account as provided in Section 3.04),
against any loss, liability or expense (including legal fees and expenses)
incurred in connection with any legal action or claim relating to this
Agreement, the Trust Mortgage Loans, any Junior Loan or the Certificates, other
than any loss, liability or expense: (i) specifically required to be borne
thereby pursuant to the terms hereof or that would otherwise constitute a
Servicing Advance; (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.

            (b) None of the Depositor, the Trustee, the Master Servicer or the
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, the Master Servicer, the Special Servicer or the Trustee 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, the
Master Servicer, the Special Servicer and the Trustee shall be entitled to be
reimbursed therefor out of amounts attributable to the Mortgage Loans on deposit
in the Collection Account as provided by Section 3.05(a) (or, insofar as a
Mortgage Loan Combination is involved, and to the extent permitted by the
related Intercreditor Agreement, as applicable, out of amounts attributable to
such Mortgage Loan Combination on deposit in the related Mortgage Loan
Combination Custodial Account as provided in Section 3.04).

            (c) Each of the Master Servicer and the Special Servicer agrees to
indemnify the Depositor, the Trust Fund and the Trustee, 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 willful misfeasance, bad faith or negligence
of the Master Servicer or the 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 the Master Servicer or the 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. The Master Servicer and the
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 XI, (iii) the defeasance of any Defeasance Mortgage Loan
or (iv) any matter involving legal proceedings with a Borrower.

            The Trustee shall immediately notify the Master Servicer or the
Special Servicer, as applicable, if a claim is made by a third party with
respect to this Agreement or the Mortgage Loans entitling the Trust Fund or the
Trustee to indemnification hereunder, whereupon the 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 the Master Servicer or
Special Servicer, as the case may be, shall not affect any rights that the Trust
Fund or the Trustee, as the case may be, may have to indemnification under this
Agreement or otherwise, unless the 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 shall immediately notify the Master Servicer or the
Special Servicer, as applicable, if a claim is made by a third party with
respect to this Agreement or the Mortgage Loans entitling the Depositor to
indemnification hereunder, whereupon the 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 the 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 the 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 the Master Servicer, the Special
Servicer and the Trustee and any Affiliate, director, officer, member, manager,
partner, shareholder, 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 Master Servicer, the Special Servicer or the Trustee, as
applicable, shall promptly notify the Depositor if a claim is made by a third
party with respect to this Agreement or the Mortgage 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.

            The Trustee agrees to indemnify the Master Servicer, the Special
Servicer and the Depositor and any Affiliate, director, officer, shareholder,
partner, member, manager, 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 the Trustee herein or as a result of any willful misfeasance, bad faith or
negligence of the Trustee in the performance of its obligations and duties under
this Agreement or the negligent disregard by the Trustee of its duties and
obligations hereunder. The Depositor, Master Servicer or the Special Servicer,
as applicable, shall promptly notify the Trustee if a claim is made by a third
party with respect to this Agreement or the Mortgage Loans entitling it to
indemnification hereunder, whereupon the Trustee 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 shall not affect any rights that any of the foregoing Persons may
have to indemnification under this Agreement or otherwise, unless the Trustee'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 Servicer and Special Servicer Not to Resign

            Subject to the provisions of Section 6.02, neither the Master
Servicer nor the Special Servicer shall resign from their respective obligations
and duties hereby imposed on each of them except upon (a) a determination that
such party's duties hereunder are no longer permissible under applicable law or
are in material conflict by reason of applicable law with any other activities
carried on by it (the other activities of the Master Servicer or the Special
Servicer, as the case may be, so causing such a conflict being of a type and
nature carried on by the Master Servicer or the Special Servicer, as the case
may be, at the date of this Agreement) or (b) upon the appointment of, and the
acceptance of such appointment by, a successor Master Servicer or Special
Servicer, as applicable, and 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 then-current
ratings assigned by such Rating Agency to any Class of Certificates. Any such
determination permitting the resignation of the Master Servicer or the Special
Servicer pursuant to clause (a) above 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 the Master Servicer or the
Special Servicer shall become effective until the Trustee or a successor Master
Servicer shall have assumed the Master Servicer's or Special Servicer's, as
applicable, responsibilities and obligations in accordance with Section 7.02;
provided that, if no successor master servicer or special servicer, as
applicable, shall have been so appointed and have accepted appointment within 90
days after the Master Servicer or the Special Servicer, as the case may be, has
given notice of such resignation, the resigning Master Servicer or Special
Servicer, as applicable, may petition any court of competent jurisdiction for
the appointment of a successor thereto.

            Section 6.05 Rights of the Depositor in Respect of the Master
Servicer and the Special Servicer

            The Depositor may, but is not obligated to, enforce the obligations
of the Master Servicer and the Special Servicer hereunder and may, but is not
obligated to, perform, or cause a designee to perform, any defaulted obligation
of the Master Servicer and the Special Servicer hereunder or exercise the rights
of the Master Servicer or Special Servicer, as applicable, hereunder; provided,
however, that the Master Servicer and the Special Servicer shall not be relieved
of any of their respective 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 the Master
Servicer or the Special Servicer and is not obligated to supervise the
performance of the Master Servicer or the Special Servicer 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 the Master Servicer or the Special Servicer to
      deposit, or to remit to the appropriate party for deposit, into the
      Collection Account or the REO Account, as appropriate, any amount required
      to be so deposited or remitted, which failure continues unremedied for
      three Business Days following the date on which the deposit or remittance
      was required to be made;

            (ii) any failure by the Master Servicer to remit to the Trustee for
      deposit in the Distribution Account or to any B Loan Holder any amount
      required to be so remitted, which failure continues unremedied beyond
      11:00 a.m. on the Business Day immediately following the date on which the
      remittance was required to be made; provided, however, that if the Master
      Servicer fails to timely make any such remittance required to be made to
      the Trustee on a Master Servicer Remittance Date, the Master Servicer
      shall pay to the Trustee (for the account of the Trustee) interest on any
      amount not timely remitted at the Prime Rate from and including such
      Master Servicer Remittance Date to but excluding the date such remittance
      is actually made;

            (iii) any failure by the Master Servicer to timely make any
      Servicing Advance required to be made by it under this Agreement, which
      failure continues unremedied for three Business Days following the date on
      which written notice of such failure, requiring the same to be remedied,
      has been given to the Master Servicer by any party to this Agreement;

            (iv) any failure by the Master Servicer or the Special Servicer to
      observe or perform in any material respect any of its other covenants or
      agreements under this Agreement which failure continues unremedied for 30
      days after written notice of such failure, requiring the same to be
      remedied, has been given to the Master Servicer or the Special Servicer,
      as the case may be, by any other party to this Agreement, by the Series
      2005-C1 Directing Certificateholder or by Certificateholders entitled to
      not less than 25% of the Voting Rights; provided, however, that, with
      respect to any such failure that is not curable within such 30-day period,
      the Master Servicer or the Special Servicer, as appropriate, will have an
      additional cure period of 30 days to effect such cure so long as the
      Master Servicer or the Special Servicer, as appropriate, has commenced to
      cure such failure within the initial 30-day period and has diligently
      pursued, and is continuing to pursue, a full cure;

            (v) it is determined that there is a breach by the Master Servicer
      or the Special Servicer of any of its representations or warranties
      contained in this Agreement that materially and adversely affects the
      interests of any Class of Certificateholders, which breach continues
      unremedied for 30 days after written notice of such failure, requiring the
      same to be remedied, has been given to the Master Servicer or the Special
      Servicer, as the case may be, by any other party to this Agreement, by the
      Series 2005-C1 Directing Certificateholder or by Certificateholders
      entitled to not less than 25% of the Voting Rights; provided, however,
      that, with respect to any such breach that is not curable within such
      30-day period the Master Servicer or the Special Servicer, as appropriate,
      will have an additional cure period of 30 days to effect such cure so long
      as the Master Servicer or the Special Servicer, as appropriate, has
      commenced to cure such breach within the initial 30-day period and has
      diligently pursued, and is continuing to pursue, a full cure;

            (vi) a decree or order of a court having jurisdiction in an
      involuntary case for the appointment of a receiver, liquidator, trustee or
      similar official in any bankruptcy, insolvency, readjustment of debt,
      marshalling of assets and liabilities or similar proceedings is entered
      against the Master Servicer or the Special Servicer and the decree or
      order remains in force 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 the Master Servicer or the
      Special Servicer, as appropriate, will have an additional period of 30
      days to effect such discharge, dismissal or stay so long as the Master
      Servicer or the Special Servicer, as appropriate, 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;

            (vii) the Master Servicer or the Special Servicer consents to the
      appointment of a receiver, liquidator, trustee or similar official
      relating to it or of or relating to all or substantially all of its
      property;

            (viii) the Master Servicer or the Special Servicer admits in writing
      its inability to pay its debts or takes other actions indicating its
      insolvency or inability to pay its obligations;

            (ix) a Servicing Officer of the Master Servicer or Special Servicer,
      as applicable, obtains actual knowledge that 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 Servicing Officer obtaining such actual knowledge),
      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

            (x) the Trustee shall have received written notice from Fitch that
      the continuation of the Master Servicer or the Special Servicer in such
      capacity would result in the downgrade or withdrawal of any rating then
      assigned by Fitch to any Class of Certificates.

            If any Event of Default shall have occurred with respect to the
Master Servicer or 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 to the extent the Trustee
has actual knowledge of that holder's identity.

            (b) If any Event of Default with respect to the 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 and the Certificate Registrar and, with respect to any
Mortgage Loan Combination, each related Junior Loan Holder, all of the rights
and obligations of the Defaulting Party under this Agreement and in and to the
Mortgage Loans and the proceeds thereof (other than any rights the Defaulting
Party may have as a Holder of any Certificate or as a B Loan Holder); provided,
however, that the Defaulting Party shall be entitled to the payment of accrued
and unpaid compensation and reimbursement through the date of such termination,
as well as amounts due to it thereafter, if any, as provided for under this
Agreement for services rendered and expenses incurred; provided, further, that
nothing contained in this Section 7.01(b) shall terminate any rights purchased
or otherwise owned or held by the Master Servicer to primary service any of the
Mortgage Loans as a Sub-Servicer to the Trustee or any other replacement or
successor Master Servicer so long as the Event of Default set forth in Section
7.01(a)(ix) or (x) is the cause of the Master Servicer's termination (in which
case, the Trustee or replacement or successor Master Servicer shall retain the
terminated Master Servicer as a Sub-Servicer of all of the Mortgage Loans that
are not otherwise subject to an existing Sub-Servicing Agreement pursuant to a
mutually acceptable Sub-Servicing Agreement effective as of the date of the
Master Servicer's termination); provided, further, that nothing contained in the
preceding proviso shall prohibit the Trustee or any other replacement or
successor Master Servicer, in its discretion, from entering into a Sub-Servicing
Agreement with the terminated Master Servicer if an Event of Default set forth
in Sections 7.01(a)(i)-(viii) is the cause of the Master Servicer's termination.

            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 Mortgage Loans (other than as a B Loan Holder) 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 Mortgage Loans and related documents, or
otherwise.

            The Master Servicer and Special Servicer each agree 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 the Master Servicer's or the Special Servicer's, as the case
may be, functions hereunder, and shall cooperate with the Trustee in effecting
the termination of the Master Servicer's or the 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
the Master Servicer to the Collection Account or any Mortgage Loan Combination
Custodial Account, Servicing Account, Cash Collateral Account or Lock-Box
Account (if it is the Defaulting Party) or by the Special Servicer to the REO
Account (if it is the Defaulting Party) or may thereafter be received with
respect to the Mortgage Loans or any REO Property (provided, however, that the
Master Servicer and Special Servicer each 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 the Master Servicer) or otherwise, as
well as amounts due to it thereafter, if any, and it and its directors,
officers, employees and agents shall continue to be entitled to the benefits of
Section 6.03 notwithstanding any such termination; provided, further, that
nothing contained in this Section 7.01(b) shall terminate any rights purchased
or otherwise owned or held by the Master Servicer to primary service any of the
Mortgage Loans as a Sub-Servicer to the Trustee or any other replacement or
successor Master Servicer so long as the Event of Default set forth in Section
7.01(a)(ix) or (x) is the cause of the Master Servicer's termination and (in
which case, the Trustee or replacement or successor Master Servicer shall retain
the terminated Master Servicer as a Sub-Servicer of all of the Mortgage Loans
that are not otherwise subject to an existing Sub-Servicing Agreement pursuant
to a mutually acceptable Sub-Servicing Agreement effective as of the date of the
Master Servicer's termination); provided, further, that nothing contained in the
preceding proviso shall prohibit the Trustee or any other replacement or
successor Master Servicer, in its discretion, from entering into a Sub-Servicing
Agreement with the terminated Master Servicer if an Event of Default set forth
in Sections 7.01(a)(i)-(viii) is the cause of the Master Servicer's termination.

            (c) Subject to the next paragraph, the Holder or Holders of
Certificates representing more than 50% of the Class Principal Balance of the
Controlling Class shall be entitled to terminate the rights and obligations of
the Special Servicer under this Agreement, with or without cause, upon 10
Business Days prior written notice to the Master Servicer, the Special Servicer
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, 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 (A) an Acknowledgment
of Proposed Special Servicer in the form attached hereto as Exhibit I, 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 (in the form 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; 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 Mortgage Loan Combination Custodial Accounts
of all of its accrued and unpaid Special Servicing Fees, as and to the extent
provided in Sections 3.05(a) and 3.04(e), and reimbursement from the successor
to such terminated Special Servicer of all outstanding Servicing Advances made
by such terminated Special Servicer and all unpaid Advance Interest 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 Workout
Fees, 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 7.01(c), 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 with
respect to any Mortgage Loan or REO Property. No penalty or fee shall be payable
to the 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 Holders who effected such termination.

            Section 7.02 Trustee to Act; Appointment of Successor

            On and after the time the Master Servicer or the 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,
the Trustee shall be and become the successor to the Master Servicer or Special
Servicer, as the case may be, in all respects in its capacity as Master Servicer
or Special Servicer 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 the 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 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 Special Servicer. The Trustee
in its capacity as successor to the Master Servicer or the Special Servicer, as
the case may be, shall not be liable for any of the representations and
warranties of the Master Servicer or the Special Servicer, respectively, herein
or in any related document or agreement, for any acts or omissions of the
predecessor Master Servicer or Special Servicer or for any losses incurred by
the Master Servicer pursuant to Section 3.06 hereunder, nor shall the Trustee be
required to purchase any Trust Mortgage Loan hereunder.

            As compensation therefor, the Trustee as successor Master Servicer
shall be entitled to the Master Servicing Fees and all fees relating to the
Mortgage Loans, which the Master Servicer would have been entitled to if the
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 pursuant to Section 3.06, and as successor to the Special
Servicer shall be entitled to the Special Servicing Fees to which the Special
Servicer would have been entitled if the Special Servicer had continued to act
hereunder. Should the Trustee succeed to the capacity of the Master Servicer or
the Special Servicer, the Trustee shall be afforded the same standard of care
and liability as the Master Servicer or the Special Servicer, as applicable,
hereunder notwithstanding anything in Section 8.01 to the contrary, but only
with respect to actions taken by it in its role as 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 the Master Servicer or Special Servicer, or shall, if it
is unable to so act, or if the Trustee is not approved as a master servicer or
special servicer, as applicable, by each Rating Agency, or if the Holders of
Certificates entitled to a majority 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 to the Master Servicer or the
Special Servicer, as applicable, hereunder in the assumption of all or any part
of the responsibilities, duties or liabilities of the Master Servicer or Special
Servicer hereunder. No appointment of a successor to the Master Servicer or the
Special Servicer under this Section 7.02 shall be effective (i) until 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) until the assumption in
writing by the successor to the Master Servicer or the Special Servicer of all
its responsibilities, duties and liabilities hereunder that arise thereafter.
Pending appointment of a successor to the Master Servicer or the Special
Servicer hereunder, unless the Trustee shall be prohibited by law from so
acting, the Trustee shall act in such capacity as herein above provided.

            In connection with such appointment and assumption of a successor to
the 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 the Trust Mortgage 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 Servicer or the Special Servicer (whichever is not the
terminated party) and such successor shall take such action, consistent with
this Agreement, as shall be necessary to effectuate any such succession. Any
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 the Master Servicer or the Special
Servicer pursuant to Section 6.04, any termination of the Master Servicer or the
Special Servicer pursuant to Section 7.01 or any appointment of a successor to
the Master Servicer or the Special Servicer pursuant to Section 7.02, the
Trustee shall give prompt written notice thereof to Certificateholders at their
respective addresses appearing in the Certificate Register and, to the extent
that a Responsible Officer of the Trustee 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) 5 days after the Trustee would be deemed
to have notice of the occurrence of such an event in accordance with Section
8.02(vii), the Trustee shall transmit by mail to the Depositor,
Certificateholders and, to the extent that a Responsible Officer of the Trustee
has actual knowledge of the identities thereof, to 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 described in clause (i) or (ii) of Section
7.01(a) may only be waived by 100% of the Certificateholders of the affected
Classes. 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 the Master Servicer fails to fulfill its obligations hereunder to
make any Advances, the Trustee shall perform such obligations (x) in accordance
with Section 3.03(d) with respect to Servicing Advances and (y) by 12:00 noon,
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 Master Servicer's rights with respect to Advances
hereunder, including, without limitation, the 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
Servicing Advance, as the case may be; provided, however, that if Advances made
by both the Trustee and the 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 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

            Section 8.01 Duties of Trustee

            (a) The Trustee, prior to the occurrence of an Event of Default and
after the curing or waiver 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 and no permissive right of the Trustee shall be
construed as a duty. If an Event of Default occurs and is continuing, then
(subject to Section 8.02(vii) below) the Trustee 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 contained in this Agreement shall not be construed as a duty.

            (b) The Trustee, upon receipt of all resolutions, certificates,
statements, opinions, reports, documents, orders or other instruments furnished
to the Trustee 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 shall make a request to the responsible party to
have the instrument corrected, and if the instrument is not corrected to the
Trustee's reasonable satisfaction, the Trustee will provide notice thereof to
the Certificateholders. The Trustee 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, the Master Servicer or the
Special Servicer, and accepted by the Trustee in good faith, pursuant to this
Agreement.

            (c) No provision of this Agreement shall be construed to relieve the
Trustee from liability for its own negligent action, its own negligent failure
to act or its own willful misconduct; provided, however, that:

            (i) 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, the Trustee 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 and, in the absence of bad faith
      on the part of the Trustee, 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
      conforming to the requirements of this Agreement;

            (ii) The Trustee shall not be liable for an error of judgment made
      in good faith by a Responsible Officer or Responsible Officers of the
      Trustee, unless it shall be proved that the Trustee was negligent in
      ascertaining the pertinent facts;

            (iii) The Trustee shall not 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 exercising any
      trust or power conferred upon the Trustee, 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 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, or (C) to confirm or verify the contents of any reports or
      certificates of the Master Servicer or 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

            Except as otherwise provided in Section 8.01:

            (i) The Trustee 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 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) The Trustee shall not 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 reasonable opinion,
      such Certificateholders shall have offered to the Trustee reasonable
      security or indemnity against the costs, expenses and liabilities which
      may be incurred therein or thereby; the Trustee 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 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 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 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 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, not
      reasonably assured to the Trustee by the security afforded to it by the
      terms of this Agreement, the Trustee may require reasonable indemnity
      against such expense or liability as a condition to taking any such
      action;

            (vi) The Trustee 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 of its duties or obligations hereunder;

            (vii) For all purposes under this Agreement, the Trustee 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 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 may
      conclusively assume that there is no default or Event of Default;

            (viii) The Trustee shall not be responsible for any act or omission
      of the Master Servicer, the Special Servicer or the Series 2005-C1
      Directing Certificateholder (unless, only with respect to the Trustee, it
      is acting as the Master Servicer, the Special Servicer or the Series
      2005-C1 Directing Certificateholder, as the case may be) or of the
      Depositor; and

            (ix) The Trustee 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 Not Liable for Validity or Sufficiency of
Certificates or Trust Mortgage Loans

            The recitals contained herein and in the Certificates, other than
the acknowledgments and expressed intentions of the Trustee in Sections 2.01,
2.02, 2.04, 2.05, 3.01, 10.01, 11.04 and 11.07 and the representations and
warranties of the Trustee in Section 8.13, shall be taken as the statements of
the Depositor, the Master Servicer or the Special Servicer, as the case may be,
and the Trustee assume no responsibility for their correctness. The Trustee does
not make any representations as to the validity or sufficiency of this Agreement
or of any Certificate or of any Trust Mortgage Loan or related document. The
Trustee 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 Trust Mortgage Loans to the Trust Fund, or any funds deposited
in or withdrawn from the Collection Account or any other account by or on behalf
of the Depositor, the Master Servicer, the Special Servicer or the Trustee. The
Trustee 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, the Master Servicer or the Special Servicer, and
accepted by the Trustee, in good faith, pursuant to this Agreement.

            Section 8.04 Trustee May Own Certificates

            The Trustee, in its individual capacity and not as Trustee, may
become the owner or pledgee of Certificates, and may deal with the Depositor,
the Master Servicer, the 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; Indemnification of and by
Trustee

            (a) On each Distribution Date, the Trustee shall withdraw from the
Distribution Account, prior to any distributions to be made therefrom to
Certificateholders on such date, and pay to itself all earned but unpaid Trustee
Fees in respect of the Trust Mortgage Loans and any REO Trust Mortgage Loans
through the end of the most recently ended calendar month, as 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. As to each Trust Mortgage Loan and REO Trust Mortgage Loan, the
Trustee Fee shall accrue during each calendar month, commencing with March 2005,
at the Trustee Fee Rate on a principal amount equal to the Stated Principal
Balance of such Trust Mortgage Loan or REO Trust Mortgage Loan immediately
following the Distribution Date in such calendar month (or, in the case of March
2005, on a principal amount equal to the Cut-off Date Principal Balance of the
particular Trust Mortgage Loan), whether or not interest is actually collected
on each Trust Mortgage Loan and REO Trust Mortgage Loan. With respect to each
Trust Mortgage Loan and REO Trust Mortgage Loan, the Trustee Fee shall accrue
from time to time on the same Interest Accrual Period as is applicable to such
Trust Mortgage Loan or REO Trust Mortgage Loan. Except as otherwise expressly
provided herein, the Trustee Fees (which shall not be limited by any provision
of law in regard to the compensation of a trustee of an express trust) shall
constitute the Trustee's sole compensation for such services to be rendered by
it. The Trustee Fee with respect to the JFK Medical Pavilion II Loan shall be an
expense of REMIC I in respect of the JFK Medical Pavilion II Loan REMIC Regular
Interest.

            (b) The Trustee shall be paid or reimbursed by the Trust Fund upon
its request for all reasonable out-of-pocket expenses and disbursements incurred
by the Trustee 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), the Trustee shall not 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.

            (c) The Trustee and any Affiliate, director, officer, employee or
agent of the Trustee shall be indemnified and held harmless by the Trust Fund
against any loss, liability or expense (including, without limitation, costs and
expenses of litigation, and of investigation, counsel fees, damages, judgments
and amounts paid in settlement, and expenses incurred in becoming successor
servicer, to the extent not otherwise paid hereunder) arising out of, or
incurred in connection with, this Agreement, the Mortgage Loans, the
Certificates or any act or omission of the Trustee relating to the exercise and
performance of any of the powers and duties of the Trustee hereunder; provided,
however, that none of the Trustee or any of the other above specified Persons
shall be entitled to indemnification pursuant to this Section 8.05(c) for (i)
allocable overhead, (ii) routine expenses or disbursements incurred or made by
or on behalf of the Trustee in the normal course of the Trustee's performing its
duties in accordance with any of the provisions hereof, which are not
"unanticipated expenses of the REMIC" within the meaning of Treasury regulations
section 1.860G-1(b)(3)(ii), (iii) any expense or liability specifically required
to be borne thereby pursuant to the terms hereof or (iv) any loss, liability or
expense incurred by reason of willful misfeasance, bad faith or negligence in
the performance of the Trustee's obligations and duties hereunder, or by reason
of negligent disregard of such obligations or duties, or as may arise from a
breach of any representation or warranty of the Trustee made herein. The
provisions of this Section 8.05(c) shall survive any resignation or removal of
the Trustee and appointment of a successor thereto.

            Section 8.06 Eligibility Requirements for Trustee

            The Trustee hereunder shall at all times be, and will be required to
resign if it fails to be, (i) a corporation, bank, trust company or 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, Master Servicer or the Special Servicer
(except during any period when the Trustee is acting as, or has become successor
to, the Master Servicer or the 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 Fitch and "Aa3" or higher by Moody's and has a
short-term rating of at least "F-1" by Fitch (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, 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, 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.

            Section 8.07 Resignation and Removal of the Trustee

            (a) The Trustee may at any time resign and be discharged from the
trusts hereby created by giving written notice thereof to the Depositor, the
Master Servicer, the Special Servicer, all Certificateholders and the B Loan
Holders. Upon receiving such notice of resignation, the Depositor shall promptly
appoint a successor trustee acceptable to the Master Servicer, in its reasonable
discretion, and to 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 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
Servicer, the Special Servicer, the Certificateholders and the B Loan Holders by
the Depositor. If no successor trustee shall have been so appointed and have
accepted appointment within 30 days after the giving of such notice of
resignation, the resigning Trustee may petition any court of competent
jurisdiction for the appointment of a successor trustee. The resigning Trustee
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.

            (b) If at any time the Trustee 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 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 the Master Servicer, or if at any time the Trustee shall become
incapable of acting, or shall be adjudged bankrupt or insolvent, or a receiver
of the Trustee or of its property shall be appointed, or any public officer
shall take charge or control of the Trustee or of its property or affairs for
the purpose of rehabilitation, conservation or liquidation, then the Depositor
may remove the Trustee and appoint a successor trustee acceptable to the Master
Servicer 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 then-current ratings then
assigned thereby to the Certificates), by written instrument, in duplicate,
which instrument shall be delivered to the Trustee so removed and to the
successor trustee. A copy of such instrument shall be delivered to the Master
Servicer, the Special Servicer, the Certificateholders and the B Loan Holders by
the Depositor.

            (c) The Holders of Certificates entitled to at least 51% of the
Voting Rights may at any time remove the Trustee and appoint a successor trustee
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 the Master Servicer, one complete set to the Trustee so
removed and one complete set to the successor so appointed. A copy of such
instrument shall be delivered to the Depositor, the Special Servicer, the
remaining Certificateholders and the B Loan Holders by the Master Servicer at
the expense of the Trust Fund. The Trustee shall be reimbursed for all
reasonable 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 is removed without cause).

            Any resignation or removal of the Trustee and appointment of a
successor trustee pursuant to any of the provisions of this Section 8.07 shall
not become effective until acceptance of appointment by the successor trustee as
provided in Section 8.08.

            Within 30 days following any succession of the Trustee under this
Agreement, the predecessor Trustee shall be paid all accrued and unpaid
compensation and reimbursement as provided for under this Agreement for services
rendered and expenses incurred. No Trustee shall be liable for any action or
omission of any successor trustee.

            Section 8.08 Successor Trustee

            (a) Any successor trustee appointed as provided in Section 8.07
shall execute, acknowledge and deliver to the Depositor, the Master Servicer,
the Special Servicer and to its predecessor Trustee, an instrument accepting
such appointment hereunder, and thereupon the resignation or removal of the
predecessor Trustee, shall become effective and such successor trustee, 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 herein. The predecessor Trustee
shall deliver to the successor trustee all Mortgage Files and related documents
and statements held by it hereunder, and the Depositor, the Master Servicer, the
Special Servicer and the predecessor Trustee 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 all such rights, powers,
duties and obligations, and to enable the successor trustee to perform its
obligations hereunder.

            (b) No successor trustee shall accept appointment as provided in
this Section 8.08 unless at the time of such acceptance such successor trustee
shall be eligible under the provisions of Section 8.06.

            (c) Upon acceptance of appointment by a successor trustee as
provided in this Section 8.08, the Master Servicer shall, at the expense of the
Trust Fund (if in connection with the first paragraph of Section 8.07(c)), or
otherwise at the expense of the successor trustee, mail notice of the succession
of such Trustee hereunder to the Depositor, the Certificateholders and the B
Loan Holders. If the Master Servicer fails to mail such notice within 10 days
after acceptance of appointment by the successor trustee, such successor trustee
shall cause such notice to be mailed at the expense of the successor trustee.

            Section 8.09 Merger or Consolidation of Trustee

            Any Person into which the Trustee 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 shall be a party, or any Person succeeding
to all or substantially all of the corporate trust business of the Trustee,
shall be the successor of the Trustee hereunder (provided that 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 Servicer 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 the
Master Servicer and the Trustee may consider necessary or desirable. If the
Master Servicer shall not have joined in such appointment within 15 days after
the receipt by it of a request to do so (which failure shall not constitute an
Event of Default hereunder), or in case an Event of Default shall have occurred
and be continuing, the Trustee 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 the Master Servicer or the 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 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
Trustee 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 Trustee, the Depositor promptly shall inform the Trustee of such event and
shall deliver to the Trustee a copy of the private placement memorandum or
disclosure document, as revised, amended or supplemented.

            The Trustee 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 Holder of a
Certificate, each B Loan Holder and its designees, the Depositor, the Master
Servicer, the Special Servicer, the Series 2005-C1 Directing Certificateholder,
any Rating Agency, the Underwriters or any other Person to whom the Trustee
believes such disclosure is appropriate, originals or copies of the following
items to the extent such documents have been delivered to the Trustee: (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 Trustee and (ii) in all cases, (A) this
Agreement and any amendments hereto entered into pursuant to Section 11.01, (B)
the Prospectus and any amendments or supplements thereto, (C) the respective
Mortgage Loan Purchase Agreements and any amendments thereto, (D) 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, (E) all Officer's Certificates delivered to the Trustee since the
Closing Date pursuant to Section 3.13, (F) all accountants' reports delivered to
the Trustee since the Closing Date pursuant to Section 3.14, (G) any and all
notices, reports and Environmental Assessments delivered to the Trustee with
respect to any Mortgaged Property securing a defaulted Trust Mortgage Loan as to
which the environmental testing contemplated by Section 3.09(c) revealed that
either of the conditions set forth in clauses (i) and (ii) of the first sentence
thereof was not satisfied (but only for so long as such Mortgaged Property or
the related Trust Mortgage Loan are part of the Trust Fund), (H) any and all
modifications, waivers and amendments of the terms of a Mortgage Loan entered
into by the Master Servicer or the Special Servicer and delivered to the Trustee
pursuant to Section 3.20 (but only for so long as the affected Trust Mortgage
Loan is part of the Trust Fund), (I) any and all Officer's Certificates
delivered to the Trustee to support the 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, (J) any and all
of the Mortgage Loan Documents contained in the Mortgage Files, (K) any and all
Appraisals obtained pursuant to the definition of "Appraisal Reduction" herein,
(L) information regarding the occurrence of Servicing Transfer Events as to the
Trust Mortgage Loans and (M) any and all Sub-Servicing Agreements and any
amendments thereto and modifications thereof.

            Copies of any and all of the foregoing items will be available from
the Trustee upon written request; provided, however, that the Trustee 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 and, so long as the requests are not excessive or
duplicative, to the Series 2005-C1 Directing Certificateholder, 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
Trustee 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 8.11(a)), the
Trustee 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 Mortgage Loan Combination, the related Junior Loan
Holder(s), as well as certain additional information received by the Trustee to
any Certificateholder, the Underwriters, the Initial Purchasers, any Certificate
Owner, any Junior Loan Holder or any prospective investor identified as such by
a Certificate Owner or the Underwriters or Initial Purchasers or, with respect
to any Mortgage Loan Combination, a related Junior Loan Holder, as applicable,
that requests such reports or information; provided that the Trustee 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 Mortgage Loan Combination.

            (c) With respect to any information furnished by the Trustee
pursuant to this Section 8.11, the Trustee shall be entitled to indicate the
source of such information and the Trustee may affix thereto any disclaimer it
deems appropriate in its discretion. The Trustee shall notify Certificateholders
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 above in this Section 8.11 to Certificateholders,
Certificate Owners, prospective purchasers of Certificates or interests therein
or licensed or registered investment advisors of any of the foregoing, the
Trustee may require: (i) in the case of Certificateholders and Certificate
Owners, a confirmation executed by the requesting Person substantially in form
and substance reasonably acceptable to the Trustee generally to the effect that
such Person is a registered or beneficial holder of Certificates or a licensed
or registered 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 a licensed or registered investment
advisor representing such Person, confirmation executed by the requesting Person
in form and substance reasonably acceptable to the Trustee generally to the
effect that such Person is a prospective purchaser of a Certificate or an
interest therein or a licensed or registered 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. The Trustee shall not be liable for the dissemination of
information in accordance with this Agreement.

            Section 8.12 Appointment of Custodians

            The Trustee may, with the consent of the Master Servicer, 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 if the Custodian is an
Affiliate of the Trustee such consent of the Master Servicer need not be
obtained and the Trustee shall inform the Master Servicer 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 8.13 Representations, Warranties and Covenants of the
Trustee

            The Trustee hereby represents and warrants to the Depositor, the
Master Servicer, the Special Servicer and for the benefit of the
Certificateholders and the B 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.

                                   ARTICLE IX

                                   TERMINATION

            Section 9.01 Termination Upon Repurchase or Liquidation of All Trust
Mortgage Loans

            Subject to Section 9.02, the Trust Fund and the respective
obligations and responsibilities under this Agreement of the Depositor, the
Master Service, the Special Servicer and the Trustee (other than the obligations
of the Trustee 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 Trustee and
required hereunder to be so paid on the Distribution Date following the earliest
to occur of (i) the purchase by the Holders of a majority of the Percentage
Interests of the Controlling Class, the Special Servicer or the Master Servicer
of all the Trust Mortgage Loans and each REO Property remaining in the Trust
Fund at a price (the "Termination Price") equal to (a) the sum of (1) the
aggregate Purchase Price of all the Trust Mortgage Loans (exclusive of REO Trust
Mortgage 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 Master Servicer, the Special Servicer and the Trustee), minus (b) (1)
solely in the case where the Master Servicer is effecting such purchase, the
aggregate amount of unreimbursed Advances, together with any interest accrued
and payable to the Master Servicer in respect of such Advances in accordance
with Sections 3.03(d) and 4.03(d) and any unpaid Master Servicing Fees remaining
outstanding (which items shall be deemed to have been paid or reimbursed to the
Master Servicer in connection with such purchase) or (2) solely in the case
where the Special Servicer is effecting such purchase, the aggregate amount of
unreimbursed Advances, together with any interest accrued and payable to the
Special Servicer in respect of such Advances in accordance with Section 3.03(d)
and any unpaid Special Servicing Fees remaining outstanding (which items shall
be deemed to have been paid or reimbursed to the Special Servicer in connection
with such purchase), and (ii) the final payment or other liquidation (or any
advance with respect thereto) of the last Trust Mortgage Loan or REO Property
remaining in the Trust Fund; provided, however, that in no event shall the trust
created hereby continue beyond the 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.

            The Holders of a majority of the Percentage Interests of the
Controlling Class may, at their option, elect to purchase all of the Trust
Mortgage Loans and each REO Property remaining in the Trust Fund as contemplated
by clause (i) of the preceding paragraph by giving written notice to the Trustee
and the other parties hereto within 60 days of the first Distribution Date on
which the aggregate Stated Principal Balance of the Mortgage Pool is less than
1.0% of the aggregate Cut-off Date Principal Balance of the Original Trust
Mortgage Loans. If the Holders of a majority of the Percentage Interests of the
Controlling Class do not exercise such option within 60 days after it becomes
exercisable by the Holders of a majority of the Percentage Interests of the
Controlling Class, the Special Servicer may notify the Holders of a majority of
the Percentage Interests in the Controlling Class and the Trustee of its
intention to exercise such option and if the Holders of a majority of the
Percentage Interests of the Controlling Class do not exercise such option within
ten Business Days thereafter, the Special Servicer shall be entitled to exercise
such option. If the Special Servicer does not exercise such option within 60
days after it becomes exercisable by it, the Master Servicer may notify the
Special Servicer, the Holders of the Controlling Class and the Trustee of the
Master Servicer's intention to exercise such option, and if none of the Special
Servicer or the Holders of a majority of the Percentage Interests in the
Controlling Class exercise such option within ten Business Days thereafter, the
Master Servicer will be entitled to exercise such option.

            If the Holders of the Controlling Class, the Special Servicer or the
Master Servicer purchases all of the Trust Mortgage Loans and each REO Property
remaining in the Trust Fund in accordance with the preceding paragraph, the
Holders of the Controlling Class, the Special Servicer or the Master Servicer,
as applicable, shall remit to the Trustee 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 Termination 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 Collection Account, (ii) any portion thereof that is payable to a B Loan
Holder in connection with an REO Property in accordance with the related
intercreditor, co-lender or similar agreement, which portion is to be remitted
to such B Loan Holder, and (iii) any portion thereof representing accrued and
unpaid Excess Interest, or, in the case of the JFK Medical Pavilion II Loan, any
portion thereof distributable on the JFK Medical Pavilion II Loan REMIC Residual
Interest, which shall be deposited in the Grantor Trust Distribution Account).
In addition, the Master Servicer shall transfer to the Distribution Account all
amounts required to be transferred thereto on such Master Servicer Remittance
Date from the Collection Account pursuant to the first paragraph of Section
3.04(b), together with any other amounts on deposit in the Collection Account
that would otherwise be held for future distribution. Upon confirmation that
such final deposits have been made, the Trustee shall release or cause to be
released to the Holders of the Controlling Class, the Special Servicer or the
Master Servicer, as applicable, the Mortgage Files for the remaining Trust
Mortgage Loans, and the Trustee shall execute all assignments, endorsements and
other instruments furnished to it by Holders of the Controlling Class, the
Special Servicer or the Master Servicer, as applicable, as shall be necessary to
effectuate transfer of the Trust Mortgage Loans and REO Properties remaining in
the Trust Fund and its rights under the related Mortgage Loan Purchase
Agreement.

            For purposes of this Section 9.01, the Series 2005-C1 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.

            Notice of any termination pursuant to this Section 9.01 shall be
given promptly by the Trustee by letter to the Certificateholders, the B 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 Trust Mortgage 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 related 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 Trustee or
such other location therein designated.

            Upon presentation and surrender of the Certificates by the
Certificateholders on the Final Distribution Date, the Trustee 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), 4.01(c),
4.01(d) and 4.01(e). 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(i).

            Section 9.02 Additional Termination Requirements

            If Holders of the Controlling Class, the Special Servicer or the
Master Servicer purchases all of the Trust Mortgage Loans and each REO Property
remaining in 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 REMIC Pool, within the
meaning of Section 860F(a)(4) of the Code:

            (i) the Trustee shall specify the first day in the 90-day
      liquidation period in a statement attached to each REMIC Pool'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 Trustee
      shall sell all of the assets of REMIC I to the Holders of the Controlling
      Class, the Special Servicer or the Master Servicer, as the case may be,
      for cash; and

            (iii) immediately following the making of the final payment on the
      Uncertificated REMIC I Interests and the Certificates, the Trustee shall
      distribute or credit, or cause to be distributed or credited, to the
      Holders of the Class R (in respect of REMIC II) or Class LR (in respect of
      REMIC I and the JFK Medical Pavilion II Loan REMIC, Certificates all cash
      on hand (other than cash retained to meet claims), in the Trust Fund and
      each REMIC Pool shall terminate at that time.

            Any provision of this Article IX to the contrary notwithstanding, a
purchase of the JFK Medical Pavilion II Loan (together with the JFK Medical
Pavilion II Loan REMIC Regular Interest and the JFK Medical Pavilion II Loan
REMIC Residual Interest) shall not cause a termination of the JFK Medical
Pavilion II Loan REMIC, which shall be terminated only in accordance with the
REMIC Declaration.

                                    ARTICLE X

                            ADDITIONAL TAX PROVISIONS

            Section 10.01 Tax Administration

            (a) The Trustee shall make or cause to be made elections to treat
each of the REMIC Pools as a REMIC under the Code and if necessary, under State
Tax Laws. Each such election will be made on Internal Revenue Service Form 1066
or other appropriate federal tax or information return or any appropriate state
Tax 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
Trustee. The Trustee shall designate the "regular interests" and the "residual
interests," within the meaning of the REMIC Provisions, in each REMIC Pool as
set forth in the Preliminary Statement hereto and/or the REMIC Declaration. To
the extent the affairs of the Trust Fund are within their control, the Master
Servicer, the Special Servicer and the Trustee shall not permit the creation of
any "interests" (within the meaning of Section 860G of the Code) in any REMIC
Pool 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 REMIC I and REMIC II.
The startup day of the JFK Medical Pavilion II Loan REMIC is the date set forth
in the REMIC Declaration.

            (c) The Holder of the largest Percentage Interest of the Class LR
Certificates is hereby designated, and by the acceptance of its Class LR
Certificate agrees to act, as Tax Matters Person for REMIC I and the JFK Medical
Pavilion II Loan REMIC. 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 REMIC II. The Trustee is
hereby designated as the agent and attorney-in-fact of the Tax Matters Person of
each REMIC Pool and shall perform all the functions thereof, and the Holders of
the Class LR and Class R Certificates, by their acceptance of such Certificates,
agree to such designation.

            (d) The Trustee shall prepare or cause to be prepared all of the Tax
Returns that it reasonably determines are required with respect to each REMIC
Pool and, as specified in Section 2.05 and Section 4.06, the Grantor Trust Pool
and shall sign and file or cause to be filed such Tax Returns in a timely
manner. The expenses of preparing such returns shall be borne by the Trustee
without any right of reimbursement therefor.

            (e) The Trustee shall provide (i) upon request by any Transferor of
a Class LR or 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 LR or 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 10.01(m), 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 REMIC Pools.

            (f) The Trustee shall take such actions and shall cause the Trust
Fund to take such actions as are reasonably within the Trustee's control and the
scope of its duties more specifically set forth herein as shall be necessary to
maintain the status of each REMIC Pool as a REMIC under the REMIC Provisions
(and the Master Servicer and Special Servicer shall assist the Trustee, to the
extent reasonably requested by the Trustee to do so). None of the Master
Servicer, the Special Servicer or the Trustee shall knowingly or intentionally
take any action, cause the Trust Fund 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 be reasonably
expected to (i) cause any REMIC Pool to fail to qualify as a REMIC or (ii)
result in the imposition of a tax under the REMIC Provisions upon any REMIC Pool
(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) (either such event, an "Adverse REMIC Event")
unless such party receives an Opinion of Counsel (at the expense of the party
seeking to take such action or, if such party fails to pay such expense, and
such party 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 such party) to the effect that the contemplated
action will not, with respect to either REMIC Pool, cause any REMIC Pool to fail
to qualify as a REMIC or, unless such party determines (which determination is
acceptable to the Trustee) that the monetary expense to any REMIC Pool is not
material and in its sole discretion to indemnify (to the extent reasonably
acceptable to the Trustee) 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 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 Trustee shall not take any action (whether or not authorized
hereunder) as to which the 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 its assets, 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 Trustee or its designee, in writing,
with respect to whether such action could cause an Adverse REMIC Event to occur
with respect to any REMIC Pool, and such party shall not take any such action,
or cause the Trust Fund to take any such action, as to which the Trustee has
advised it in writing that an Adverse REMIC Event could occur. The Trustee 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 Trustee 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 either REMIC Pool as defined in Section 860F(a)(2) of the Code,
on "contributions" to a REMIC Pool after the Startup Day pursuant to 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" pursuant to Section 860G(c) of the Code or similar
provisions of state or local tax laws, such tax shall be charged (i) to the
Master Servicer, if such tax arises out of or results from a breach, which
breach constitutes negligence or willful misconduct of the Master Servicer, by
the 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 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, (iii) to the Special Servicer, if such tax arises out of or
results from a breach, which breach constitutes negligence or willful misconduct
of the Special Servicer, by the Special Servicer of any of its obligations under
this Agreement and such breach is not caused by the breach of another party and
(iv) otherwise, against amounts on deposit in the Collection Account in
accordance with Section 3.05(a), and on the Distribution Date(s) following such
reimbursement the aggregate of such taxes shall be allocated in reduction of the
Optimal Interest Distribution Amount on each Class entitled thereto in the same
manner as if such taxes constituted an Uncovered Prepayment Interest Shortfall
Amount.

            (h) The Trustee shall, for federal income tax purposes, maintain
books and records with respect to each of the REMIC Pools 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 Servicer, the
Special Servicer or the Trustee shall (except as contemplated by Section 2.03)
accept any contributions of assets to either REMIC Pool unless the Master
Servicer, the Special Servicer and the Trustee 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 any REMIC Pool will not cause any
REMIC Pool to fail to qualify as a REMIC at any time that any Certificates are
outstanding or subject any REMIC Pool created hereunder to any tax under the
REMIC Provisions or other applicable provisions of federal, state and local law
or ordinances.

            (j) None of the Master Servicer, the Special Servicer or the Trustee
shall enter into any arrangement by which a REMIC Pool created hereunder will
receive a fee or other compensation for services nor, to the extent reasonably
within their control, permit either REMIC Pool 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 Uncertificated
REMIC I Interests and the Regular Certificates is the Rated Final Distribution
Date and the "latest possible maturity date" of the JFK Medical Pavilion II Loan
REMIC Regular Interest is the date set forth in the REMIC Declaration.

            (l) Within 30 days after the Closing Date, the Trustee shall obtain
a taxpayer identification number for each REMIC Pool (other than the JFK Medical
Pavilion II Loan REMIC, as to which the Mortgage Loan Seller has previously
obtained a taxpayer identification number) 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 Pool created
hereunder (other than for the JFK Medical Pavilion II Loan REMIC, as to which
the applicable Mortgage Loan Seller has previously filed such Form 8811).

            (m) None of the Trustee, the Master Servicer or the Special Servicer
shall sell or dispose of or substitute for any of the Trust Mortgage Loans
(except in connection with (i) the default, imminent default or foreclosure of a
Trust Mortgage 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 Trust Mortgage
Loans pursuant to Article II or Section 3.18 of this Agreement) nor acquire any
assets for the Trust Fund or either REMIC Pool, nor sell or dispose of any
investments in the Collection Account for gain, nor accept any contributions to
either REMIC Pool after the Closing Date, unless it has received an Opinion of
Counsel (which opinion shall be the expense of the Trust Fund) that such sale or
disposition will not affect adversely the status of any REMIC Pool as a REMIC or
cause any REMIC Pool 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
Trustee, within ten (10) days after the Closing Date, and thereafter on an
ongoing basis, all information or data requested by the Trustee that the Trustee
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, the Master Servicer, the Special Servicer and the
Depositor shall provide on a timely basis to the Trustee or its designee such
information with respect to the Trust Fund as is in its possession and
reasonably requested by the Trustee to enable it to perform its obligations
under this Section. The Trustee shall be entitled to rely conclusively upon all
such information so provided to it without recalculation or other investigation.
The Trustee shall be entitled to reasonable compensation and to the
reimbursement of its reasonable expenses incurred in the performance of its
duties under this Section 10.01 as may be agreed upon by the Trustee and the
Depositor; provided, however, that the Trustee 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.

            (o) The Master Servicer and the Special Servicer each shall furnish
such reports, certifications and information in its possession, and access to
such books and records maintained thereby, as may be related to the Certificates
or the Trust Fund and as shall be reasonably requested by the Trustee in order
to enable it to perform its duties under this Article X.

            (p) The Trustee shall administer the JFK Medical Pavilion II Loan
REMIC in accordance with the REMIC Declaration and the REMIC Provisions and
shall comply with and perform all federal and, if applicable, state and local
income tax return and information reporting requirements with respect to the JFK
Medical Pavilion II Loan REMIC, and shall otherwise administer the JFK Medical
Pavilion II Loan REMIC in the same manner as specified for the REMIC I and the
REMIC II in this Section 10.01. The JFK Medical Pavilion II Loan shall be
serviced and administered in accordance with the provisions of Article III
hereof and the REMIC Declaration. The Trustee shall maintain separate accounting
with respect to the JFK Medical Pavilion II Loan REMIC sufficient (i) to comply
with such return and information reporting requirements, including quarterly and
annual reporting on Schedule Q to Form 1066 to the holders of the Class LR
Certificates with respect to the JFK Medical Pavilion II Loan REMIC Residual
Interest, (ii) to account for the JFK Medical Pavilion II Loan REMIC Regular
Interest as assets of the REMIC I, (iii) to pay or cause to be paid any federal,
state or local income tax attributable to the JFK Medical Pavilion II Loan REMIC
from payments received on or with respect to the related Mortgage Loan and (iv)
to cause any payments on the JFK Medical Pavilion II Loan REMIC in excess of
amounts distributable in respect of the JFK Medical Pavilion II Loan REMIC
Regular Interest to be distributed in respect of the JFK Medical Pavilion II
Loan REMIC Residual Interest.

                                   ARTICLE XI

                            MISCELLANEOUS PROVISIONS

            Section 11.01 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 B 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 with the description thereof in the
Prospectus or the Prospectus Supplement, (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 Master Servicer and the 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 Trustee, 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 REMIC Pool or the
Grantor Trust Pool at least from the effective date of such amendment, (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 REMIC Pool or the Grantor Trust Pool or (Z) to comply with any requirements
imposed by the Commission with respect to any proposed or adopted temporary or
final regulation or other written official announcement or interpretation
relating to the securities laws which, would apply retroactively to the
Depositor, any Underwriter or the Trust Fund, (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), or (vii) to avoid an Adverse Rating Event with
respect to any Class of Rated Certificates; provided that no such amendment may
significantly change the activities of the Trust; and provided, further, that
any such amendment for the specific purposes described in clause (iii), (iv) or
(vii) above shall not adversely affect in any material respect the interests of
any Certificateholder, any B Loan Holder or any third-party beneficiary to this
Agreement or any provision hereof, as evidenced by the Trustee's receipt of an
Opinion of Counsel to that effect (or, alternatively, in the case of a Class of
Rated Certificates, written confirmation from each applicable Rating Agency to
the effect that such amendment shall not result in an Adverse Rating Event with
respect to any Class of Rated Certificates); and provided, further, that with
respect to any such amendment for the specific purposes described in clause
(iii) above, the Trustee shall receive written confirmation from each applicable
Rating Agency to the effect that such amendment shall not result in an Adverse
Rating Event with respect to any Class of Rated 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 Mortgage Loans and/or REO Properties which are required to be
distributed on any Certificate, without the consent of the Holder of such
Certificate, or which are required to be distributed to any B Loan Holder,
without the consent of such B Loan Holder, (ii) adversely affect in any material
respect the interests of the Holders of any Class of Certificates or the
interests of any B 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 B Loan Holder, as applicable, (iii) modify the
provisions of this Section 11.01 or the definition of "Servicing Standard",
without the consent of the Holders of all Certificates then outstanding and the
consent of the B Loan Holders, (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, for purposes
of the giving or withholding of consents pursuant to this Section 11.01,
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 Master Servicer and the Special Servicer shall not consent to any
amendment to this Agreement unless each of them shall first have obtained or
been furnished with 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 REMIC Pool or an Adverse Grantor Trust Event with respect to the
Grantor Trust Pool.

            (d) Promptly after the execution and delivery of any amendment by
all parties thereto, the Trustee shall send a copy thereof to each
Certificateholder and each B Loan Holder and to each Rating Agency.

            (e) It shall not be necessary for the consent of Certificateholders
under this Section 11.01 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 Trustee may prescribe.

            (f) The Trustee may but shall not be obligated to enter into any
amendment pursuant to this Section 11.01 that affects the Trustee's rights,
duties and immunities under this Agreement or otherwise.

            (g) The cost of any Opinion of Counsel to be delivered pursuant to
Section 11.01(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 11.01(a) or (c) shall be payable out of
the Distribution Account.

            (h) [Reserved]

            (i) Notwithstanding the foregoing, absent a material adverse effect
on any Certificateholder, this Agreement may be amended by the parties hereto
without the consent of any of the Certificateholders to the extent necessary for
any Mortgage Loan Seller and their Affiliates to obtain accounting "sale"
treatment for the Mortgage Loans under FAS 140.

            Section 11.02 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 the Master Servicer 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 it benefits
any B Loan Holder, by such B Loan Holder) to the effect that such recordation
materially and beneficially affects the interests of the Certificateholders
and/or the B 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 11.03 Limitation on Rights of Certificateholders and B Loan
Holders

            (a) The death or incapacity of any Certificateholder or any B Loan
Holder shall not operate to terminate this Agreement or the Trust Fund, nor
entitle such Certificateholder's or B Loan Holder'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) No Certificateholder or B Loan Holder shall have any right to
vote (except as expressly provided for herein) 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 and/or the B Loan Holders from time to time as partners or
members of an association; nor shall any Certificateholder or any B Loan Holder
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 or B Loan Holder 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 Mortgage Loan, unless, in the case of a Certificateholder, 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 Voting
Rights 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 11.03(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 11.04 Governing Law

            This Agreement and the Certificates shall be construed in accordance
with the laws of the State of New York applicable to agreements made and to be
performed entirely 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 11.05 Notices

            Any communications provided for or permitted hereunder shall be in
writing (including by telecopy) and, unless otherwise expressly provided herein,
shall be deemed to have been duly given when delivered to or, in the case of
telecopy notice, when received: (i) in the case of the Depositor, Credit Suisse
First Boston Mortgage Securities Corp., 11 Madison Avenue, 5th Floor, New York,
New York 10010, Attention: Edmund Taylor, telecopy number: (212) 743-4756 (with
a copy to Casey McCutcheon, telecopy number: (212) 325-8282); (ii) in the case
of the Master Servicer, GMAC Commercial Mortgage Corporation, 200 Witmer Road,
Horsham, Pennsylvania, 19044, telecopy number: (215) 328-3478, Attention:
Managing Director, Commercial Servicing Operations; (iii) in the case of the
Special Servicer, Lennar Partners, Inc., 1601 Washington Avenue, Suite 700,
Miami Beach, Florida 33139, Attention: Randy Wolpert, telecopy number: (305)
695-5601; (iv) in the case of the Trustee, Wells Fargo Bank, N.A., to the
Corporate Trust Office, telecopy number (410) 715-2380; (v) in the case of the
Rating Agencies, (A) Moody's Investors Service Inc., 99 Church Street, New York,
New York 10007, Attention: Commercial MBS Monitoring Department, telecopy
number: (212) 553-0300; and (B) Fitch, Inc., One State Street Plaza, 31st Floor,
New York, NY, Attention: Commercial Mortgage Surveillance, telecopy number:
(212) 635-0295; and; (vii) in the case of a Mortgage Loan Seller, the address
for notices to such Mortgage Loan Seller under the related Mortgage Loan
Purchase Agreement; (viii) in the case of the Column Performance Guarantor, the
address for notices to the Column Performance Guarantor under the Column
Performance Guarantee; (ix) in the case of a Junior Loan Holder, at the address
set forth in the related Intercreditor Agreement; or as to each such Person such
other address and/or telecopy number 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.

            Section 11.06 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 11.07 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 Trust Mortgage 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 Trust Mortgage Loans, all principal and interest received or
receivable with respect to the Trust Mortgage 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 held from time to
time in the Collection Account, any Mortgage Loan Combination Custodial Account
(insofar as such amounts relate to the related Trust Mortgage Loan or any
successor REO Trust Mortgage Loan with respect thereto), the Distribution
Account and, if established, the REO Account, 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 Trust
Mortgage Loans and (ii) this Agreement shall constitute a security agreement
under applicable law. This Section 11.07 shall constitute notice to the Trustee
pursuant to any of the requirements of the applicable UCC.

            Section 11.08 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 B
Loan Holders and the other Persons referred to in Section 6.03. No other person,
including, without limitation, any Borrower, shall be entitled to any benefit or
equitable right, remedy or claim under this Agreement.

            Section 11.09 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 11.10 Notices to Rating Agencies

            (a) The Trustee 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 Trustee 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 or termination of the Master Servicer or the
      Special Servicer;

            (iv) any change in the location of the Distribution Account, the
      Grantor Trust Distribution Account, the Excess Liquidation Proceeds
      Account or the Interest Reserve Account;

            (v) the repurchase of Trust Mortgage Loans by or on behalf of any
      Mortgage Loan Seller pursuant to Section 7 of the related Mortgage Loan
      Purchase Agreement or the Column Performance Guarantee; and

            (vi) the final payment to any Class of Certificateholders.

            (b) The Master Servicer shall use reasonable efforts promptly to
provide notice to each Rating Agency with respect to each of the following of
which it has actual knowledge:

            (i) the resignation or removal of the Trustee; and

            (ii) any change in the location of the Collection Account or any
      Mortgage Loan Combination Custodial Account.

            (c) Each of the Master Servicer and the Special Servicer shall
promptly furnish to each Rating Agency copies of the following:

            (i) each of its annual statements as to compliance described in
      Section 3.13;

            (ii) all reports and other items for Trust Mortgage Loans delivered
      by each of the Master Servicer and Special Servicer 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 3.14;

            (iv) each waiver and consent provided pursuant to Section 3.08 for
      Trust Mortgage Loans that, in each case, represent 2% or more of the
      aggregate principal balance of the Mortgage Pool;

            (v) any officers' certificates delivered by the Master Servicer and
      the Special Servicer to the Trustee (to the extent requested by such
      Rating Agency);

            (vi) all site inspections (to the extent requested by such Rating
      Agency);

            (vii) all operating statements (to the extent requested by such
      Rating Agency);

            (viii) all rent rolls and sales reports to the extent provided by
      the Borrowers and requested by such Rating Agency;

            (ix) any proposed no downgrade request;

            (x) any extension or modification of the Maturity Date of any Trust
      Mortgage Loan;

            (xi) any modification, waiver or amendment of any material term of
      any Trust Mortgage Loan with a Stated Principal Balance in excess of
      $5,000,000; and

            (xii) any other document that shall be reasonably requested by any
      Rating Agency.

            (d) The Trustee shall promptly after each Distribution Date make
available to each Rating Agency a copy of the related Trustee Report.

<PAGE>

            IN WITNESS WHEREOF, the parties to this Pooling and Servicing
Agreement 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.,
                                         as Depositor

                                       By:
                                          ------------------------------------
                                          Name:
                                          Title:

                                       GMAC COMMERCIAL MORTGAGE
                                         CORPORATION, as Master Servicer

                                       By:
                                          ------------------------------------
                                          Name:
                                          Title:

                                       LENNAR PARTNERS, INC.,
                                          as Special Servicer

                                       By:
                                          ------------------------------------
                                          Name:
                                          Title:

                                       WELLS FARGO BANK, N.A.,
                                          as Trustee

                                       By:
                                          ------------------------------------
                                          Name:
                                          Title:

<PAGE>

STATE OF NEW YORK       )
                        )  ss.:
COUNTY OF NEW YORK      )

            On the ___ day of March 2005 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 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

<PAGE>

STATE OF                )
                        )  ss.:
COUNTY OF               )

            On the ___ day of March 2005 before me, a notary public in and for
said State, personally appeared ________________________, known to me to be a
________________________ of GMAC Commercial Mortgage Corporation, 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
<PAGE>

STATE OF FLORIDA        )
                        ) SS:
COUNTY OF MIAMI-DADE    )

The foregoing instrument was acknowledged before me this ___ day of February,
2005, by ___ __________________________________, as Vice President on behalf of
Lennar Partners, Inc., a Florida corporation; such individual is personally
known to me or has produced a driver's license as identification.

My Commission Expires:

                                    _________________________________________
      [NOTARIAL SEAL]               Print Name:______________________________
                                    Notary Public, State of Florida

<PAGE>

STATE OF NEW YORK       )
                        )  ss.:
COUNTY OF NEW YORK      )

            On the ___ day of March 2005 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

<PAGE>

                                 EXHIBIT A-1

                   FORM OF CLASS [A-X] [A-SP] CERTIFICATES

       CLASS [A-X] [A-SP] COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATE,
                                SERIES 2005-C1

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] Certificates as of the Closing Date:
                                     $________________

Closing Date:  March 17, 2005        Initial Certificate Notional Amount of this
                                     Certificate as of the Closing Date:
First Distribution Date: April 15,   $________________
2005

Master Servicer:                     Aggregate Stated Principal Balance of the
GMAC Commercial Mortgage             Mortgage Loans as of the Closing Date
Corporation                          ("Initial Pool Balance"): $1,510,367,836

Special Servicer:
Lennar Partners, Inc.
                                     Trustee:
                                     Wells Fargo Bank, N.A.

Certificate No. [A-X] [A-SP]-__      CUSIP No.:  _____________
                                     Common Code:  _____________
                                     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
(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., GMAC
COMMERCIAL MORTGAGE CORPORATION, LENNAR PARTNERS, INC., 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.] 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]
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] Certificates. The Trust Fund was created and the Certificates
were issued pursuant to a Pooling and Servicing Agreement, dated as of March 1,
2005 (the "Agreement"), among Credit Suisse First Boston Mortgage Securities
Corp., as depositor (the "Depositor", which term includes any successor entity
under the Agreement), GMAC Commercial Mortgage Corporation, as master servicer
(in such capacity, the "Master Servicer", which term includes any successor
entity under the Agreement), Lennar Partners, Inc., as special servicer (in such
capacity, the "Special Servicer", which term includes any successor entity under
the Agreement), and Wells Fargo Bank, N.A., as trustee (the "Trustee", 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] Certificates on the applicable Distribution Date pursuant to
the Agreement. All distributions made under the Agreement on this Certificate
will be made by the Trustee 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 Trustee 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 Servicer, the Special Servicer, 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 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 Trustee 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 Trustee, 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 Trustee
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 Trustee of such certifications and such orders
and instructions, the Trustee, 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, or the Certificate Registrar is
obligated to register or qualify the Class [A-X] [A-SP] 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 First
Boston LLC, the Depositor, the Trustee, the Master Servicer, the Special
Servicer, 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. 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 (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 Depositor, any Mortgage Loan
Seller, any Exemption-Favored Party, the Master Servicer, the Special 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)
a certification of facts and an Opinion of Counsel which otherwise establish to
the reasonable satisfaction of the Trustee, (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.

            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 Trustee 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 Trustee 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 Registrar and any agent of the Depositor, the Master
Servicer, the Special Servicer, the Trustee 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 Servicer, the
Special Servicer, the Trustee, 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 Trustee 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 Servicer, the Special Servicer, 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 Servicer,
the Special Servicer, 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 Servicer, the Special Servicer, and the Trustee and the
rights of the Certificateholders under the Agreement at any time by the
Depositor, the Master Servicer, the Special Servicer, 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
REMIC Pool 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 Trustee has caused this Certificate to be
duly executed.

                                    WELLS FARGO BANK, N.A.
                                    as Trustee

                                    By:  _______________________________________
                                         Authorized Representative

                        CERTIFICATE OF AUTHENTICATION

            This is one of the Class [A-X] [A-SP] Certificates referred to in
the within-mentioned Agreement.

Dated: March 17, 2005

                                    WELLS FARGO BANK, N.A.
                                    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-2

              FORM OF CLASS A-1, CLASS A-2, CLASS A-AB, CLASS A-3,
                         CLASS A-4, CLASS A-J, CLASS B,
                        CLASS C, AND CLASS D CERTIFICATES

         CLASS [A-1], [A-2], [A-AB], [A-3], [A-4], [A-J], [B], [C], [D]
                        COMMERCIAL MORTGAGE PASS-THROUGH
                           CERTIFICATE, SERIES 2005-C1

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 annum] Class Principal Balance of the Class [A-1]
[variable]                            [A-2] [A-AB] [A-3] [A-4] [A-J] [B] [C] [D]
                                      Certificates as of the Closing Date:
                                      $_________________

Closing Date:  March 17, 2005         Initial Certificate Principal Balance of
                                      this Certificate as of the Closing Date:
First Distribution Date:  April 15,   $_________________
2005

Master Servicer:                      Aggregate Stated Principal Balance of the
GMAC Commercial Mortgage Corporation  Mortgage Loans as of the Closing Date
                                      ("Initial Pool Balance"):   $1,510,367,836
Special Servicer:
Lennar Partners, Inc.
                                      Trustee:
                                      Wells Fargo Bank, N.A.

Certificate No. [A-1] [A-2] [A-AB]    CUSIP No.:  _____________
[A-3] [A-4] [A-J] [B] [C] [D]-___     Common Code:  _____________
                                      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.

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., GMAC
COMMERCIAL MORTGAGE CORPORATION, LENNAR PARTNERS, INC., 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-J, CLASS B, CLASS C AND CLASS D 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-4] [A-J] [B] [C] [D] 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-4]
[A-J] [B] [C] [D] Certificates. The Trust Fund was created and the Certificates
were issued pursuant to a Pooling and Servicing Agreement, dated as of March 1,
2005 (the "Agreement"), among Credit Suisse First Boston Mortgage Securities
Corp., as depositor (the "Depositor", which term includes any successor entity
under the Agreement), GMAC Commercial Mortgage Corporation, as master servicer
(in such capacity, the "Master Servicer", which term includes any successor
entity under the Agreement), Lennar Partners, Inc., as special servicer (in such
capacity, the "Special Servicer", which term includes any successor entity under
the Agreement), and Wells Fargo Bank, N.A., as trustee (the "Trustee", 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-4] [A-J] [B] [C] [D] Certificates on the
applicable Distribution Date pursuant to the Agreement. All distributions made
under the Agreement on this Certificate will be made by the Trustee 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 Trustee 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.

            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 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 Registrar and any agent of the Depositor, the Master
Servicer, the Special Servicer, the Trustee, 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 Servicer, the
Special Servicer, the Trustee, 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 Trustee 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 Servicer, the Special Servicer, 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 Servicer,
the Special Servicer, 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 Servicer, the Special Servicer and the Trustee and the
rights of the Certificateholders under the Agreement at any time by the
Depositor, the Master Servicer, the Special Servicer 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
REMIC Pool 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 Trustee has caused this Certificate to be
duly executed.

                                    WELLS FARGO BANK, N.A.
                                    as Trustee

                                    By:  _______________________________________
                                         Authorized Representative

                        CERTIFICATE OF AUTHENTICATION

            This is one of the Class [A-1] [A-2] [A-AB] [A-3] [A-4] [A-J] [B]
[C] [D] Certificates referred to in the within-mentioned Agreement.

Dated: March 17, 2005

                                    WELLS FARGO BANK, N.A.
                                    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 E, CLASS F, CLASS G, CLASS H, CLASS J, CLASS K, CLASS L, CLASS
                  M, CLASS N, CLASS O AND CLASS P CERTIFICATES

      CLASS [E] [F] [G] [H] [J] [K] [L] [M] [N] [O] [P] COMMERCIAL MORTGAGE
                    PASS-THROUGH CERTIFICATE, SERIES 2005-C1

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 [E] [F] [G] [H] [J] [K] [L] [M]
                                       [N] [O] [P] Certificates as of the
                                       Closing Date:
                                       $_________________

Closing Date:  March 17, 2005          Initial Certificate Principal Balance of
                                       this Certificate as of the Closing Date:
First Distribution Date:  April 15,    $_________________
2005

Master Servicer:                       Aggregate Stated Principal Balance of the
GMAC Commercial Mortgage Corporation   Mortgage Loans as of the Closing Date:
                                       ("Initial Pool Balance"):  $1,510,367,836
Special Servicer:
Lennar Partners, Inc.

                                       Trustee:
                                       Wells Fargo Bank, N.A.

Certificate No.  [E] [F] [G] [H] [J]   CUSIP No.:  _____________
[K] [L] [M] [N] [O] [P]-___            Common Code:  _____________
                                       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
(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., GMAC
COMMERCIAL MORTGAGE CORPORATION, LENNAR PARTNERS, INC., 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 [E] [F] [G]
[H] [J] [K] [L] [M] [N] [O] [P] 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 [E] [F] [G] [H] [J] [K] [L] [M] [N] [O]
[P] Certificates. The Trust Fund was created and the Certificates were issued
pursuant to a Pooling and Servicing Agreement, dated as of March 1, 2005 (the
"Agreement"), among Credit Suisse First Boston Mortgage Securities Corp., as
depositor (the "Depositor", which term includes any successor entity under the
Agreement), GMAC Commercial Mortgage Corporation, as master servicer (in such
capacity, the "Master Servicer", which term includes any successor entity under
the Agreement), Lennar Partners, Inc., as special servicer (in such capacity,
the "Special Servicer", which term includes any successor entity under the
Agreement), and Wells Fargo Bank, N.A., as trustee (the "Trustee", 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 [E] [F] [G] [H] [J] [K] [L] [M] [N] [O] [P] Certificates on the applicable
Distribution Date pursuant to the Agreement. All distributions made under the
Agreement on this Certificate will be made by the Trustee 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 Trustee 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 Servicer, the Special Servicer, 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 Trustee 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 Trustee, 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 Trustee
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 Trustee of such certifications and such orders
and instructions, the Trustee, 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 Trustee or the Certificate
Registrar is obligated to register or qualify the Class [E] [F] [G] [H] [J] [K]
[L] [M] [N] [O] [P] 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 First Boston
LLC, the Trustee, the Master Servicer, the Special Servicer, 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. 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 (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 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) 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 Depositor, any Mortgage Loan
Seller, any Exemption-Favored Party, the Master Servicer, the Special 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)
a certification of facts and an Opinion of Counsel which otherwise establish to
the reasonable satisfaction of the Trustee (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.

            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 Trustee 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 Trustee 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 Registrar and any agent of the Depositor, the Master
Servicer, the Special Servicer, the Trustee 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 Servicer, the
Special Servicer, the Trustee, 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 Trustee 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 Servicer, the Special Servicer, 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 Servicer,
the Special Servicer, 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 Servicer, the Special Servicer, and the Trustee and the
rights of the Certificateholders under the Agreement at any time by the
Depositor, the Master Servicer, the Special Servicer 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
REMIC Pool 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 Trustee has caused this Certificate to be
duly executed.

                                    WELLS FARGO BANK, N.A.
                                    as Trustee

                                    By:  _______________________________________
                                         Authorized Representative

                        CERTIFICATE OF AUTHENTICATION

            This is one of the Class [E] [F] [G] [H] [J] [K] [L] [M] [N] [O] [P]
Certificates referred to in the within-mentioned Agreement.

Dated: March 17, 2005

                                    WELLS FARGO BANK, N.A.
                                    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 2005-C1

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:  March 17, 2005              Percentage Interest evidenced by this
                                           Class V Certificate:  ______%
First Distribution Date:  April 15, 2005

Master Servicer:                           Aggregate Stated Principal Balance of
GMAC Commercial Mortgage Corporation       the Mortgage Loans as of the Closing
                                           Date ("Initial Pool Balance"):
                                           $1,510,367,836

Special Servicer:                          Trustee:
Lennar Partners, Inc.                      Wells Fargo Bank, N.A.

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
(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., GMAC
COMMERCIAL MORTGAGE CORPORATION, LENNAR PARTNERS, INC., 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 March 1, 2005
(the "Agreement"), among Credit Suisse First Boston Mortgage Securities Corp. as
depositor (the "Depositor", which term includes any successor entity under the
Agreement), GMAC Commercial Mortgage Corporation, as master servicer (in such
capacity, the "Master Servicer", which term includes any successor entity under
the Agreement), Lennar Partners, Inc., as special servicer (in such capacity,
the "Special Servicer", which term includes any successor entity under the
Agreement) and Wells Fargo Bank, N.A., as trustee (the "Trustee", 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 Trustee 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 Trustee 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 Servicer, the Special Servicer, 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 First Boston LLC, the
Trustee, the Master Servicer, the Special Servicer 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. Except in limited circumstances, the
Certificate Registrar shall refuse to register the transfer of 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 (ii) a certification
of facts and an Opinion of Counsel which otherwise establish to the reasonable
satisfaction of the Trustee 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.

            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 Trustee 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 Trustee 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.

            The Depositor, the Master Servicer, the Special Servicer, the
Trustee, the Certificate Registrar and any agent of the Depositor, the Master
Servicer, the Special Servicer, the Trustee 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 Servicer, the
Special Servicer, the Trustee, 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 Trustee 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 Servicer, the Special Servicer, 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 Servicer, the Special Servicer, 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 Servicer, the Special Servicer and the Trustee and the
rights of the Certificateholders under the Agreement at any time by the
Depositor, the Master Servicer, the Special Servicer 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
REMIC Pool 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 Trustee has caused this Certificate to be
duly executed.

                                    WELLS FARGO BANK, N.A.
                                    as Trustee

                                    By:_________________________________________
                                    Authorized Representative

                        CERTIFICATE OF AUTHENTICATION

            This is one of the Class V Certificates referred to in the
within-mentioned Agreement.

Dated: March 17, 2005

                                    WELLS FARGO BANK, N.A.
                                    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] [CLASS LR] CERTIFICATES

       [CLASS R] [CLASS LR] COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATE,
                                 SERIES 2005-C1

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:  March 17, 2005             Percentage Interest evidenced by this
                                          [Class R] [Class LR] Certificate: ___%
First Distribution Date:  April 15,
2005

Master Servicer:                          Aggregate Stated Principal Balance of
GMAC Commercial Mortgage Corporation      the Mortgage Loans as of the Closing
                                          Date ("Initial Pool Balance"):
                                          $1,510,367,836

Special Servicer:                         Trustee:
Lennar Partners, Inc.                     Wells Fargo Bank, N.A.

Certificate No. [R] [LR]-___              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
(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., GMAC
COMMERCIAL MORTGAGE CORPORATION, LENNAR PARTNERS, INC., 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 [TWO] [A] "REAL ESTATE MORTGAGE
INVESTMENT CONDUIT[S]" (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] [Class LR] Certificates. The Trust Fund was created and the
Certificates were issued pursuant to a Pooling and Servicing Agreement, dated as
of March 1, 2005 (the "Agreement"), among Credit Suisse First Boston Mortgage
Securities Corp., as depositor (the "Depositor", which term includes any
successor entity under the Agreement), GMAC Commercial Mortgage Corporation, as
master servicer (in such capacity, the "Master Servicer", which term includes
any successor entity under the Agreement), Lennar Partners, Inc., as special
servicer (in such capacity, the "Special Servicer", which term includes any
successor entity under the Agreement), and Wells Fargo Bank, N.A., as trustee
(the "Trustee", 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] [Class LR] Certificates on the applicable Distribution Date pursuant
to the Agreement. All distributions made under the Agreement on this Certificate
will be made by the Trustee 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 Trustee 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 Servicer, the Special Servicer, 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 First Boston LLC, the
Trustee, the Master Servicer, the Special Servicer, 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. 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.

            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 and agreement substantially in the form attached as Exhibit H-1
to the Agreement (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 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
and Agreement 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 and Agreement 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 Trustee 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
Trustee 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] [Class LR] 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] [Class LR]
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 Servicer 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 or other entity created or organized
in, or under the laws of, the United States, any State thereof or the District
of Columbia, or an estate whose income from sources without the United States is
includible in gross income for United States federal income tax purposes
regardless of its connection with the conduct of a trade or business within the
United States, 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.

            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 Trustee 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 Trustee 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.

            The Depositor, the Master Servicer, the Special Servicer, the
Trustee, the Certificate Registrar and any agent of the Depositor, the Master
Servicer, the Special Servicer, the Trustee, 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 Servicer, the
Special Servicer, the Trustee, 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 Trustee 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 Servicer, the Special Servicer, 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 Servicer,
the Special Servicer, 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 Servicer, the Special Servicer and the Trustee and the
rights of the Certificateholders under the Agreement at any time by the
Depositor, the Master Servicer, the Special Servicer 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
REMIC Pool 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 Trustee has caused this Certificate to be
duly executed.

                                    WELLS FARGO BANK, N.A.
                                    as Trustee

                                    By: ________________________________________
                                        Authorized Representative

                        CERTIFICATE OF AUTHENTICATION

            This is one of the [Class R] [Class LR] Certificates referred to in
the within-mentioned Agreement.

Dated: March 17, 2005

                                    WELLS FARGO BANK, N.A.
                                    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-1

                   SCHEDULE OF COLUMN TRUST MORTGAGE LOANS

<TABLE>
<CAPTION>

    #        Crossed                                     Property Name
---------------------------------------------------------------------------------------------------------
<S>         <C>         <C>
   1a                   Eastridge Mall
   1b                   Pine Ridge Mall
   1c                   Red Cliffs
   1d                   Three Rivers Mall
    2                   Phelps Dodge Tower
    3           A       Bexley Creekside Apartments
    4           A       Bexley Commons at Rosedale Apartments
    7           B       BP Sweetwater Ranch Apartments
    8           B       BP Prescott Place II Apartments
    9           B       BP Prescott Place I Apartments
   10           B       BP Berkshire of Addison Apartments
   12                   2001 M Street
   13                   Rachel Bridge Apartments
   14                   Battery Park City Retail and Entertainment Complex
   16           C       BP Huntington Lakes Apartments
   17           C       BP Huntington Ridge Apartments
   18           C       BP Berkshire Springs Apartments
   21                   Walnut Creek Retail
   22                   Kings Crossing Apartments
   23                   Paseo Marketplace
   25                   Voice of America Center Phase I
   28                   Hotel Giraffe
   29                   Best Western Gateway Hotel
   30                   One Columbus Center
   31                   Pavilions at Arrowhead
   34                   Rancho Vista Industrial 5 & 6
   35                   Cross Creek Apartments
   36                   Coral Island Shopping Center
   38                   Lafayette Corporate Campus
   40                   Brittany Bay Apartments
   41                   Shoppes of Plantation Acres
   42                   Kingstowne I Apartments
   44                   Shops at Pinnacle Peak
   45                   333 Gellert Boulevard
   46                   Library Hotel
   47                   Columbia III Shopping Center
   48                   Bank One Buildings
   49                   Miller West Plaza
   50                   Lohman's Crossing Shopping Center
   51                   El Dorado Shopping Center
   53                   Fiddler's Cove
   56                   Bridges of Southpoint Apartments
   57                   Bromley Park Apartments
   58                   Windtree Apartments
   59                   BP Berkshire Hills Apartments
   60                   Valley Plaza
   61                   Timber Ridge Plaza
   62                   Garden City Apartments
   64                   Trails of Windfern Apartments
   65                   Hatteras Island Plaza
   66                   Tower Place Apartments
   67a                  Parkway Apartments
   67b                  Fontanelle Apartments
   67c                  J & E Apartments
   67d                  Islander Apartments
   67e                  Chinook Apartments
   69                   BP Pleasant Woods Apartments
   70                   Daneland Mobile Home Park
   71                   Rosemont Crossing Apartments
   72                   Glenwood Apartments
   74                   Shops on Montevallo
   75                   Fieldstone Apartments
   76                   Unizan Plaza
   78                   Midland Heights Apartments
   79                   Goldenpointe Apartments
   80                   Sunridge Plaza Phase II
   81                   Stone Gate Apartments
   83                   Brookhaven Apartments
   84                   Mission Valley Square
   85                   Cherry Bottom Shopping Center
   87                   The Heritage Building
   88           D       Highland - Highland Park Place
   89           D       Highland-13939 Livernois Avenue
   90                   Robin Mobile Home Park
   91                   910 Office Building
   92                   Tyler Plaza
   93                   Heritage Plaza
   95                   Logan Building
   98                   Pecan Place Apartments
   100                  Ashford Village Shopping Center
  101a                  Madison County Self Storage - Ridgeland
  101b                  Madison County Self Storage - Gluckstadt
   102                  Sausalito Apartments
   103                  Shenandoah Village Apartments
   104                  Regency Apartments - Milwaukee
   105                  Staples Plaza
   106                  Central Park Plaza
   107                  Kingston Corners Plaza
   108                  Villa Rosa
   109                  2230 Point Boulevard
   111                  CT Storage Portfolio
   112                  Harmony Plaza
   113                  Home Depot Cold Spring
   114                  Shops at Woodmen Hills
   115                  Walgreens - Oklahoma City
   116                  Mary Crest Partners II
   119                  Shops at Shawnee Ridge
   120                  Kent Plaza Apartments
   121                  Sagewood Center II
   122                  Dakota Village Shopping Center
   123                  9320 Wilshire Boulevard Office
   124                  Park Lane Apartments
   125                  Hotel Casablanca
   126                  Trinity Oaks Shopping Center
   127                  Orchard Square Apartments
   129                  Falls Creek Plaza
   130                  Lee's Drilling Self Storage
   131                  Fig Leaf Plaza
   132                  Shoppes of Olney II
   133                  Southland Plaza
   134                  Duane Heights Apartments
   135                  GEM City Manufactured Housing Community
   136                  Village Shoppes at Winter Park
   137                  Montgomery Plaza Apartments
   138                  Handi Self Storage
   139                  Eden Rock Apartments
   140                  Tucson Marketplace
   141                  7500 Santa Fe Retail Center
   142                  Laguna Canyon
   143                  Townhomes Mobile Home Park
   144                  576 Riverside Drive
   145                  Georgian Oaks/Georgian Village Apartments
   146                  Park Run Building
   147                  Riverside Apartments
   148                  Union Town Center
   149                  Yakima Triangle Center
   150                  Diamond Court Apartments
   151                  Cambridge West Apartments
   152                  Clear Creek Crossing
   153                  Summit Ridge
   154                  Korea Town Plaza Shopping Center
   155                  Panorama Self Storage
   156                  Stuart Place Apartments
   157                  Marshall Wells Retail
   158                  Roxboro Shops
   159                  Cookson Mobile Home Park
   160                  Plaza West Apartments
   161                  Parker Exchange Shopping Center
   162                  Prairie Village of Grimes I
   163                  Sunset Gardens Mobile Home Park
   164                  Falconer Village
   165                  Evergreen Manor of Waukee
   166                  Silverwood Apartments

<CAPTION>
    #      Address
---------------------------------------------------------------------------------------------------------------------------------
<S>       <C>
   1a     601 Southeast Wyoming Boulevard
   1b     4155 Yellowstone Highway
   1c     1770 East Red Cliffs Drive
   1d     351 Three Rivers Drive
    2     One North Central Avenue
    3     4101 Double Creek Crossing Drive
    4     13255 Rosedale Hill Avenue
    7     540 Buckingham Road
    8     2861 Franklin Drive
    9     2701 Franklin Drive
   10     14600 Marsh Lane
   12     2001 M Street, Northwest
   13     1365 and 1370 Saint Nicholas Avenue, 111 Wadsworth Avenue and 260 Audubon Avenue
   14     102 North End Avenue
   16     7324 Skillman Street
   17     4220 Esters Road
   18     5704 Spring Valley Road
   21     2500-2540 North Main Street
   22     4545 Kingwood Drive
   23     3637-3755 Thousand Oaks Boulevard
   25     7616-7725 Voice of America Drive
   28     101 East 26th Street
   29     1920 Santa Monica Boulevard
   30     1 Columbus Center
   31     7400 West Arrowhead Clubhouse Drive
   34     1370 and 1390 Decision Street and 1330, 1340 and 1350 Specialty Drive
   35     1300 Cross Creek Drive
   36     1650 Richmond Avenue
   38     2600 Campus Drive and 2655-2675 Crescent Drive
   40     14925 Lighthouse Road
   41     12260-12370 West Sunrise Boulevard
   42     201 Kingstowne Drive
   44     7601, 7605, 7609 and 7615 East Pinnacle Peak Road
   45     333 Gellert Boulevard
   46     299 Madison Avenue
   47     5424 Forest Drive
   48     2696 South Colorado Boulevard and 4201 East Yale Avenue
   49     15703-15785 Southwest 56th Street
   50     2300 Lohman's Crossing Road
   51     570 El Dorado
   53     70920-71340 Van Dyke Road (M-53)
   56     7304 Calibre Park Drive
   57     2113 Bromley Park Drive
   58     3630 Brennan Boulevard
   59     2430 Cromwell Circle
   60     12201-12215 Victory Boulevard
   61     9199 Sprague Road
   62     9601 Montgomery Road
   64     13035 Windfern Road
   65     41934 North Carolina Highway 12
   66     51 Tala Place Drive, Southwest
   67a    7401 Rainier Avenue South
   67b    7325 Rainier Avenue South
   67c    7900 Rainier Avenue South
   67d    5231 39th Avenue South
   67e    5205 39th Avenue South
   69     9236 Church Road
   70     1199 North Terry Steet
   71     8916 Datapoint Drive
   72     3800 Spring Valley
   74     4500 Montevallo Road
   75     4451 Love Lane
   76     220 Market Avenue South
   78     1602 South Grandview Avenue
   79     7325 Goldenpointe Boulevard
   80     10870 and 10890 South Eastern Avenue
   81     950 Southwood Oaks Lane
   83     14833 Marsh Lane
   84     980 Camino De La Reina
   85     1344 Cherrybottom Road
   87     401 East Capitol Street
   88     14029 Woodward Avenue
   89     13939 Livernois Avenue
   90     3218 State Route 82
   91     910 Southeast 17th Street
   92     10370 Hemet Street
   93     1705 and 1717 West University Drive
   95     765 and 899 Logan Street
   98     2001 Jenkins Road
   100    1801 South Dairy Ashford Road
  101a    426 Christine Drive
  101b    122 Yandell Road
   102    16250 Imperial Valley Drive
   103    1400 Shady Lane
   104    10157-10291 West Fond Du Lac Avenue
   105    8168 Elliott Road
   106    1435 North Central Expressway
   107    27089-27099 Bagley Road
   108    7850 West Sunset Boulevard
   109    2230 Point Boulevard
   111    176 Windsorville Road, 25 Kingsbury Avenue, 73 West Street, 35 Hockanum Boulevard
   112    7102 State Road 52
   113    415 Crossroads Boulevard
   114    7376 McLaughlin Road
   115    2100 West Britton Road
   116    111-125 Corporate Park Drive
   119    3320 Lawrenceville-Suwanee Road
   120    1641-1675 Franklin Avenue
   121    10146 West San Juan Way
   122    10027 West Remington Avenue
   123    9320 Wilshire Boulevard
   124    1610 Waybridge Lane
   125    147 West 43rd Street
   126    4043 Trinity Mills Road
   127    1510-1520 West Kingsley Road
   129    833-851 Lexington-Springmill Road
   130    149 East Gordon Lane
   131    6240-6400 North Figarden Drive
   132    3215 Spartan Road
   133    2576-2584 South Main Street
   134    2271 Duane Street
   135    2705 Dryden Road
   136    933 North Orlando Avenue
   137    116, 118 and 120 East Montgomery Avenue
   138    540 West Avenue L
   139    1911 East Southmore
   140    7955 East Broadway Boulevard
   141    7500 South Santa Fe Avenue
   142    2133-2147 Laguna Canyon Road
   143    3811 North 27th Avenue
   144    576, 584 and 592 Riverside Drive
   145    2200 Atlanta Road & 1731 Sams Street
   146    10181 Park Run Drive
   147    1600 Riverside Drive
   148    3472 Research Parkway
   149    1214-1230 South First Street
   150    324 East Diamond Avenue
   151    3600-3602 Rainbow Boulevard
   152    4005-4019 South Old State Road 37
   153    982 Summit Ridge Drive
   154    10544 Walnut Street
   155    14647 Arminta Street
   156    110 Legion Way South East
   157    1420 Northwest Lovejoy Street
   158    1019-1021 US Highway 501
   159    1011 FM 1489
   160    3420 West Rose Lane
   161    2601-2629 South Parker Road
   162    317 South Jacob Street
   163    Maquoit Road
   164    304 East Elmwood Avenue
   165    170 Evergreen Drive
   166    2507 South 87th Avenue East

<CAPTION>
                                                                                                   Net
                                                                                   Mortgage     Mortgage
                                                                                   Rate at       Rate at     Original
   #     City                                State            Zip Code             Cut-Off       Cut-off      Balance
------------------------------------------------------------------------------------------------------------------------
<S>     <C>                                   <C>              <C>                 <C>          <C>         <C>
  1a    Casper                                 WY              82609               5.080%       5.0484%     $41,900,000
  1b    Pocatello                              ID              83202               5.080%       5.0484%     $28,250,000
  1c    St George                              UT              84790               5.080%       5.0484%     $26,850,000
  1d    Kelso                                  WA              98626               5.080%       5.0484%     $23,000,000
   2    Phoenix                                AZ              85004               5.149%       5.1174%     $54,500,000
   3    Charlotte                              NC              28269               4.960%       4.9284%     $31,500,000
   4    Charlotte                              NC              28078               4.960%       4.9284%     $21,800,000
   7    Richardson                             TX              75081               5.373%       5.3414%     $18,000,000
   8    Mesquite                               TX              75150               5.373%       5.3414%     $10,880,000
   9    Mesquite                               TX              75150               5.373%       5.3414%     $10,060,000
  10    Addison                                TX              75001               5.373%       5.3414%      $8,480,000
  12    Washington                             DC              20036               5.249%       5.2174%     $44,500,000
  13    New York                               NY              10033               4.967%       4.9354%     $38,000,000
  14    New York                               NY              10282               5.440%       5.4084%     $37,830,000
  16    Dallas                                 TX              75231               5.345%       5.3134%     $15,740,000
  17    Irving                                 TX              75038               5.345%       5.3134%      $7,400,000
  18    Dallas                                 TX              75240               5.345%       5.3134%      $7,120,000
  21    Walnut Creek                           CA              94597               5.160%       5.1284%     $19,900,000
  22    Kingwood                               TX              77345               5.200%       5.1684%     $19,500,000
  23    Thousand Oaks                          CA              91362               5.185%       5.1534%     $19,000,000
  25    West Chester                           OH              45069               5.190%       5.1584%     $17,200,000
  28    New York                               NY              10010               5.690%       5.6584%     $16,000,000
  29    Santa Monica                           CA              90404               5.730%       5.6984%     $15,675,000
  30    Virginia Beach                         VA              23462               5.310%       5.2184%     $15,500,000
  31    Glendale                               AZ              85308               4.882%       4.8504%     $15,100,000
  34    Vista                                  CA              92083               5.540%       5.5084%     $13,800,000
  35    Brunswick                              OH              44212               5.070%       5.0084%     $13,280,000
  36    Staten Island                          NY              10314               5.335%       5.3034%     $12,500,000
  38    Lafayette                              CO              80026               5.900%       5.8684%     $11,600,000
  40    Naples                                 FL              34119               5.300%       5.2684%     $11,000,000
  41    Plantation                             FL              33323               5.330%       5.2984%     $10,500,000
  42    Newport News                           VA              23606               5.450%       5.4184%     $10,250,000
  44    Scottsdale                             AZ              85255               5.430%       5.3984%     $10,000,000
  45    Daly City                              CA              94015               5.350%       5.3184%      $9,600,000
  46    New York                               NY              10017               5.990%       5.9584%      $9,550,000
  47    Columbia                               SC              29206               6.000%       5.9684%      $9,360,000
  48    Denver                                 CO              80222               5.520%       5.4884%      $9,150,000
  49    Miami                                  FL              33193               4.940%       4.9084%      $8,937,500
  50    Lakeway                                TX              78734               5.460%       5.4284%      $8,700,000
  51    Houston                                TX              77598               5.800%       5.7684%      $8,700,000
  53    Bruce Township                         MI              48065               5.770%       5.7384%      $8,560,000
  56    Durham                                 NC              27707               4.930%       4.8984%      $8,200,000
  57    Winston-Salem                          NC              27103               5.220%       5.1884%      $8,000,000
  58    Amarillo                               TX              79121               5.670%       5.6384%      $8,000,000
  59    Austin                                 TX              78741               5.264%       5.2324%      $7,935,000
  60    North Hollywood                        CA              91606               6.500%       6.4684%      $7,550,000
  61    North Royalton                         OH              44133               5.840%       5.8084%      $7,200,000
  62    Houston                                TX              77088               5.380%       5.3484%      $7,152,000
  64    Houston                                TX              77064               5.550%       5.5184%      $7,000,000
  65    Avon                                   NC              27915               5.310%       5.2784%      $6,800,000
  66    Concord                                NC              28026               5.200%       5.1684%      $6,700,000
  67a   Seattle                                WA              98118               6.290%       6.2584%      $2,000,000
  67b   Seattle                                WA              98118               6.290%       6.2584%      $1,650,000
  67c   Seattle                                WA              98118               6.290%       6.2584%      $1,250,000
  67d   Seattle                                WA              98118               6.290%       6.2584%      $1,025,000
  67e   Seattle                                WA              98118               6.290%       6.2584%        $775,000
  69    Dallas                                 TX              75231               5.264%       5.2324%      $6,560,000
  70    Eugene                                 OR              97402               5.250%       5.2184%      $6,500,000
  71    San Antonio                            TX              78229               5.590%       5.5584%      $6,400,000
  72    Addison                                TX              75001               5.630%       5.5984%      $6,400,000
  74    Birmingham                             AL              35213               5.300%       5.2684%      $6,100,000
  75    Beavercreek                            OH              45430               5.200%       5.1684%      $6,050,000
  76    Canton                                 OH              44702               4.930%       4.8984%      $6,000,000
  78    Papillion                              NE              68046               5.500%       5.4684%      $6,000,000
  79    Orlando                                FL              32807               6.470%       6.4384%      $5,950,000
  80    Henderson                              NV              89052               6.000%       5.9684%      $5,860,000
  81    Charlotte                              NC              28212               5.200%       5.1684%      $5,800,000
  83    Farmers Branch                         TX              75234               5.400%       5.3684%      $5,560,000
  84    San Diego                              CA              92108               4.980%       4.9484%      $5,500,000
  85    Gahanna                                OH              43230               5.120%       5.0584%      $5,500,000
  87    Jackson                                MS              39201               5.500%       5.4684%      $5,400,000
  88    Highland Park                          MI              48203               6.220%       6.1884%      $3,485,000
  89    Detroit                                MI              48238               5.910%       5.8784%      $1,615,000
  90    Mantua Township                        OH              44255               5.310%       5.2784%      $4,900,000
  91    Fort Lauderdale                        FL              33316               5.700%       5.6684%      $4,850,000
  92    Riverside                              CA              92503               5.430%       5.3984%      $4,700,000
  93    McKinney                               TX              75070               5.310%       5.2784%      $4,600,000
  95    Denver                                 CO              80203               5.390%       5.3584%      $4,400,000
  98    Pasadena                               TX              77506               5.500%       5.4684%      $4,260,000
  100   Houston                                TX              77077               5.770%       5.7384%      $4,143,750
 101a   Ridgeland                              MS              39157               6.160%       6.1284%      $2,200,000
 101b   Canton                                 MS              39046               6.160%       6.1284%      $1,900,000
  102   Houston                                TX              77060               6.070%       6.0384%      $4,100,000
  103   Bedford                                TX              76021               5.990%       5.9584%      $3,920,000
  104   Milwaukee                              WI              53224               5.860%       5.8284%      $3,850,000
  105   Easton                                 MD              21601               5.380%       5.3484%      $3,750,000
  106   McKinney                               TX              75070               5.420%       5.3884%      $3,690,000
  107   Olmsted Falls                          OH              44138               5.490%       5.4584%      $3,650,000
  108   Los Angeles                            CA              90046               5.340%       5.3084%      $3,500,000
  109   Elgin                                  IL              60123               5.370%       5.2584%      $3,400,000
  111   Ellington, Tolland, Vernon, Vernon     CT    06029, 06084, 06066, 06066    5.650%       5.6184%      $3,250,000
  112   Port Richey                            FL              28560               5.320%       5.2884%      $3,200,000
  113   Cold Spring                            KY              41076               5.810%       5.7784%      $3,150,000
  114   Falcon                                 CO              80831               5.750%       5.7184%      $3,150,000
  115   The Village                            OK              73120               5.670%       5.6384%      $3,070,000
  116   Henderson                              NV              89074               5.300%       5.2684%      $3,050,000
  119   Suwanee                                GA              30024               5.870%       5.8384%      $3,000,000
  120   Kent                                   OH              44240               5.220%       5.1884%      $2,975,000
  121   Littleton                              CO              80127               5.500%       5.4684%      $2,875,000
  122   Littleton                              CO              80127               5.440%       5.4084%      $2,850,000
  123   Beverly Hills                          CA              90212               5.430%       5.3984%      $2,800,000
  124   Charlotte                              NC              28210               5.200%       5.1684%      $2,800,000
  125   New York                               NY              10036               6.000%       5.9684%      $2,750,000
  126   Dallas                                 TX              75287               5.920%       5.8884%      $2,600,000
  127   Garland                                TX              75041               6.150%       6.1184%      $2,520,000
  129   Ontario                                OH              44862               5.560%       5.5284%      $2,350,000
  130   Murray                                 UT              84107               6.000%       5.9684%      $2,082,500
  131   Fresno                                 CA              93722               5.550%       5.5184%      $2,065,000
  132   Olney                                  MD              20832               5.220%       5.1884%      $2,000,000
  133   Adrian                                 MI              49221               5.640%       5.6084%      $2,000,000
  134   Los Angeles                            CA              90039               5.670%       5.6384%      $2,000,000
  135   Moraine                                OH              45439               5.550%       5.5184%      $2,000,000
  136   Winter Park                            FL              32789               5.620%       5.5884%      $1,950,000
  137   Ardmore                                PA              19003               5.900%       5.8684%      $1,950,000
  138   Calimesa                               CA              92320               5.950%       5.9184%      $1,875,000
  139   Pasadena                               TX              77502               5.740%       5.7084%      $1,860,000
  140   Tucson                                 AZ              85710               5.560%       5.5284%      $1,840,000
  141   Oklahoma City                          OK              73139               5.370%       5.3384%      $1,800,000
  142   Laguna Beach                           CA              92651               5.740%       5.7084%      $1,800,000
  143   Phoenix                                AZ              85017               5.410%       5.3784%      $1,800,000
  144   Augusta                                ME               4330               5.850%       5.8184%      $1,800,000
  145   Smyrna, Marietta                       GA           30080, 30082           7.010%       6.9784%      $1,920,000
  146   Las Vegas                              NV              89145               5.500%       5.4684%      $1,763,500
  147   Monroe                                 LA              71201               6.420%       6.3884%      $1,720,000
  148   Colorado Springs                       CO              80920               5.900%       5.8684%      $1,650,000
  149   Yakima                                 WA              98901               5.410%       5.3784%      $1,600,000
  150   Gaithersburg                           MD              20877               6.500%       6.4684%      $1,600,000
  151   Kansas City                            KS              66103               5.740%       5.7084%      $1,575,000
  152   Bloomington                            IN              47403               5.460%       5.4284%      $1,500,000
  153   Brandon                                FL              33511               5.950%       5.9184%      $1,400,000
  154   Dallas                                 TX              75243               5.830%       5.7984%      $1,368,750
  155   Panorama City                          CA              91402               5.950%       5.9184%      $1,300,000
  156   Olympia                                WA              98501               5.480%       5.4484%      $1,200,000
  157   Portland                               OR              97209               6.390%       6.3584%      $1,200,000
  158   Roxboro                                NC              27573               5.690%       5.6284%      $1,000,000
  159   Brookshire                             TX              77423               5.590%       5.5584%      $1,000,000
  160   Phoenix                                AZ              85017               6.020%       5.9884%        $960,000
  161   Aurora                                 CO              80014               6.190%       6.1584%        $950,000
  162   Grimes                                 IA              50111               5.850%       5.8184%        $915,000
  163   Brunswick                              ME               4011               6.100%       6.0684%        $850,000
  164   Falconer                               NY              14733               5.540%       5.5084%        $720,000
  165   Waukee                                 IA              50263               5.850%       5.8184%        $700,000
  166   Tulsa                                  OK              74129               6.170%       6.1384%        $670,000

<CAPTION>
                               Remaining
                                Term to                                            Original              Remaining
               Cut-Off          Maturity        Maturity                         Amortization          Amortization
    #        Balance (1)        (1) (2)           Date           ARD (3)             Term                Term (1)
-------------------------------------------------------------------------------------------------------------------------
<S>              <C>                     <C>       <C>  <C>      <C>                               <C>                   <C>
   1a            $41,750,649             81        12/5/2011     N/A                               360                   357
   1b            $28,149,304             81        12/5/2011     N/A                               360                   357
   1c            $26,754,294             81        12/5/2011     N/A                               360                   357
   1d            $22,918,017             81        12/5/2011     N/A                               360                   357
    2            $54,500,000            118        1/11/2015     N/A                     Interest Only         Interest Only
    3            $31,500,000             56       11/11/2009     N/A                     Interest Only         Interest Only
    4            $21,800,000             56       11/11/2009     N/A                     Interest Only         Interest Only
    7            $18,000,000            117       12/11/2014     N/A                               360                   360
    8            $10,880,000            117       12/11/2014     N/A                               360                   360
    9            $10,060,000            117       12/11/2014     N/A                               360                   360
   10             $8,480,000            117       12/11/2014     N/A                               360                   360
   12            $44,500,000            117       12/11/2014     N/A                               360                   360
   13            $38,000,000            116       11/11/2014     N/A                     Interest Only         Interest Only
   14            $37,830,000            118        1/11/2015     N/A                               360                   360
   16            $15,740,000            105       12/11/2013     N/A                               360                   360
   17             $7,400,000            105       12/11/2013     N/A                               360                   360
   18             $7,120,000            105       12/11/2013     N/A                               360                   360
   21            $19,830,110             72        3/11/2011     N/A                               360                   357
   22            $19,409,150            118        1/11/2015     N/A                               360                   356
   23            $18,911,233            116       11/11/2014     N/A                               360                   356
   25            $17,200,000            117       12/11/2014     N/A                               360                   360
   28            $15,891,782            117       12/11/2014     N/A                               240                   237
   29            $15,625,261            118        1/11/2015     N/A                               300                   298
   30            $15,500,000            117       12/11/2014     N/A                               360                   360
   31            $15,100,000             57       12/11/2009     N/A                               360                   360
   34            $13,754,853            117       12/11/2014     N/A                               360                   357
   35            $13,280,000            115       10/11/2014     N/A                               360                   360
   36            $12,500,000            116       11/11/2014     N/A                               360                   360
   38            $11,510,090            112        7/11/2014     N/A                               360                   352
   40            $10,949,693            116       11/11/2014     N/A                               360                   356
   41            $10,452,247            117       12/11/2014     N/A                               360                   356
   42            $10,204,415            116       11/11/2014     N/A                               360                   356
   44             $9,945,604            115       10/11/2014     N/A                               360                   355
   45             $9,600,000            116       11/11/2014     N/A                               360                   360
   46             $9,475,624            117       12/11/2014     N/A                               216                   213
   47             $9,360,000            116       11/11/2014     N/A                               360                   360
   48             $9,128,605            118        1/11/2015     N/A                               360                   358
   49             $8,876,574            117       12/11/2014     N/A                               300                   296
   50             $8,700,000            118        1/11/2015     N/A                               360                   360
   51             $8,631,131             76        7/11/2011     N/A                               360                   352
   53             $8,516,475            115       10/11/2014     N/A                               360                   355
   56             $8,200,000            115       10/11/2014     N/A                               360                   360
   57             $7,962,866            115       10/11/2014     N/A                               360                   356
   58             $7,958,400             67       10/11/2010     N/A                               360                   355
   59             $7,935,000             81       12/11/2011     N/A                               360                   360
   60             $7,353,880             91       10/11/2032     10/11/2012                        360                   331
   61             $7,156,328            114        9/11/2014     N/A                               360                   354
   62             $7,127,890            119        2/11/2015     N/A                               360                   357
   64             $6,962,814            115       10/11/2014     N/A                               360                   355
   65             $6,776,775            117       12/11/2014     N/A                               360                   357
   66             $6,661,877            115       10/11/2014     N/A                               360                   355
   67a            $1,983,587            114        9/11/2014     N/A                               300                   294
   67b            $1,636,460            114        9/11/2014     N/A                               300                   294
   67c            $1,239,742            114        9/11/2014     N/A                               300                   294
   67d            $1,016,589            114        9/11/2014     N/A                               300                   294
   67e              $768,640            114        9/11/2014     N/A                               300                   294
   69             $6,560,000             81       12/11/2011     N/A                               360                   360
   70             $6,484,114            118        1/11/2015     N/A                               360                   358
   71             $6,353,158            113        8/11/2014     N/A                               360                   353
   72             $6,340,406             51        6/11/2009     N/A                               360                   351
   74             $6,100,000            118        1/11/2015     N/A                               360                   360
   75             $6,050,000            115       10/11/2014     N/A                               360                   360
   76             $6,000,000             55       10/11/2009     N/A                     Interest Only         Interest Only
   78             $5,973,565            115       10/11/2014     N/A                               360                   356
   79             $5,909,215            112        7/11/2014     N/A                               360                   352
   80             $5,842,428            117       12/11/2014     N/A                               360                   357
   81             $5,766,998            114        9/11/2014     N/A                               360                   355
   83             $5,535,041            117       12/11/2014     N/A                               360                   356
   84             $5,500,000            117       12/11/2014     N/A                               360                   360
   85             $5,460,257            117       12/11/2014     N/A                               240                   237
   87             $5,376,208            116       11/11/2014     N/A                               360                   356
   88             $3,381,698            106        1/11/2014     N/A                               240                   226
   89             $1,568,777            107        2/11/2014     N/A                               240                   227
   90             $4,872,711             80       11/11/2011     N/A                               360                   355
   91             $4,824,992            114        9/11/2014     N/A                               360                   355
   92             $4,684,303            117       12/11/2014     N/A                               360                   357
   93             $4,588,868            118        1/11/2015     N/A                               360                   358
   95             $4,380,212            116       11/11/2014     N/A                               360                   356
   98             $4,260,000             57       12/11/2009     N/A                               300                   300
   100            $4,134,450            118        1/11/2015     N/A                               360                   358
  101a            $2,193,416            119        2/11/2015     N/A                               300                   298
  101b            $1,894,314            119        2/11/2015     N/A                               300                   298
   102            $4,065,155            111        6/11/2014     N/A                               360                   351
   103            $3,908,223             81       12/11/2011     N/A                               360                   357
   104            $3,850,000            112        7/11/2014     N/A                               336                   336
   105            $3,733,103            116       11/11/2034     11/11/2014                        360                   356
   106            $3,673,497            116       11/11/2014     N/A                               360                   356
   107            $3,633,888            117       12/11/2014     N/A                               360                   356
   108            $3,488,113            118        1/11/2015     N/A                               360                   357
   109            $3,388,517            117       12/11/2014     N/A                               360                   357
   111            $3,239,575            118        1/11/2015     N/A                               300                   298
   112            $3,177,404            117       12/11/2014     N/A                               240                   237
   113            $3,150,000            118        1/11/2015     N/A                               360                   360
   114            $3,133,919            115       10/11/2014     N/A                               360                   355
   115            $3,062,996            119        2/11/2035     2/11/2015                         360                   358
   116            $3,050,000            117       12/11/2014     N/A                               336                   336
   119            $2,980,133            237       12/11/2024     N/A                               240                   237
   120            $2,975,000            115       10/11/2014     N/A                               360                   360
   121            $2,865,523            117       12/11/2014     N/A                               360                   357
   122            $2,850,000            118        1/11/2015     N/A                               360                   360
   123            $2,787,501            116       11/11/2014     N/A                               360                   356
   124            $2,784,068            114        9/11/2014     N/A                               360                   355
   125            $2,724,189            117       12/11/2014     N/A                               192                   189
   126            $2,531,786             94        1/11/2013     N/A                               360                   334
   127            $2,467,436            105       12/11/2013     N/A                               300                   285
   129            $2,339,762            116       11/11/2014     N/A                               360                   356
   130            $2,074,151            116       11/11/2014     N/A                               360                   356
   131            $2,055,987            116       11/11/2014     N/A                               360                   356
   132            $2,000,000            117       12/11/2014     N/A                               360                   360
   133            $1,995,415            118        1/11/2015     N/A                               360                   358
   134            $1,993,615            117       12/11/2014     N/A                               360                   357
   135            $1,991,270            116       11/11/2014     N/A                               360                   356
   136            $1,939,597            114        9/11/2014     N/A                               357                   352
   137            $1,932,798            236       11/11/2024     N/A                               240                   236
   138            $1,864,018            116       11/11/2014     N/A                               300                   296
   139            $1,854,140             57       12/11/2009     N/A                               360                   357
   140            $1,834,003            118        1/11/2015     N/A                               360                   357
   141            $1,800,000            117       12/11/2014     N/A                               360                   360
   142            $1,794,329            117       12/11/2014     N/A                               360                   357
   143            $1,791,935            118        1/11/2015     N/A                               360                   356
   144            $1,789,296            117       12/11/2014     N/A                               300                   296
   145            $1,763,033             40         7/1/2008     N/A                               360                   280
   146            $1,754,039            115       10/11/2014     N/A                               360                   355
   147            $1,710,716            114        9/11/2014     N/A                               360                   354
   148            $1,640,110            114        9/11/2014     N/A                               360                   354
   149            $1,594,636            118        1/11/2015     N/A                               360                   357
   150            $1,585,397            113        8/11/2014     N/A                               300                   293
   151            $1,553,990            107        2/11/2014     N/A                               360                   347
   152            $1,496,458            118        1/11/2015     N/A                               360                   358
   153            $1,391,800            116       11/11/2014     N/A                               300                   296
   154            $1,358,744            115       10/11/2014     N/A                               300                   295
   155            $1,296,065            117       12/11/2014     N/A                               360                   357
   156            $1,197,176             58        1/11/2010     N/A                               360                   358
   157            $1,193,483            114        9/11/2014     N/A                               360                   354
   158              $996,820            117       12/11/2034     12/11/2014                        360                   357
   159              $996,759            118        1/11/2015     N/A                               360                   357
   160              $946,538            110        5/11/2014     N/A                               300                   290
   161              $942,078            114        9/11/2014     N/A                               300                   294
   162              $909,559            116       11/11/2014     N/A                               300                   296
   163              $847,499            117       12/11/2014     N/A                               360                   357
   164              $715,512            116       11/11/2014     N/A                               300                   296
   165              $695,837            116       11/11/2014     N/A                               300                   296
   166              $664,395            114        9/11/2014     N/A                               300                   294

<CAPTION>
                                                               Master
                  Monthly                   Sq.              Servicing                      ARD Loan
    #           Payment (4)            Ft./Rooms/Pads         Fee Rate          Due Date       (3)
---------------------------------------------------------------------------------------------------------
<S>                <C>                            <C>              <C>          <C>          <C>
   1a              $226,981                       493,482          0.0300%             5     N/A
   1b              $153,036                       538,772          0.0300%             5     N/A
   1c              $145,452                       385,643          0.0300%             5     N/A
   1d              $124,596                       427,954          0.0300%             5     N/A
    2              $237,098                       409,889          0.0300%            11     N/A
    3              $132,008                           492          0.0300%            11     N/A
    4               $91,358                           328          0.0300%            11     N/A
    7              $100,772                           312          0.0300%            11     N/A
    8               $60,911                           336          0.0300%            11     N/A
    9               $56,321                           318          0.0300%            11     N/A
   10               $47,475                           212          0.0300%            11     N/A
   12              $245,703                       209,645          0.0300%            11     N/A
   13              $159,473                           960          0.0300%            11     N/A
   14              $213,373                       158,719          0.0300%            11     N/A
   16               $87,845                           405          0.0300%            11     N/A
   17               $41,300                           232          0.0300%            11     N/A
   18               $39,737                           208          0.0300%            11     N/A
   21              $108,782                       208,797          0.0300%            11     N/A
   22              $107,077                           404          0.0300%            11     N/A
   23              $104,155                        77,189          0.0300%            11     N/A
   25               $94,341                       106,127          0.0300%            11     N/A
   28              $111,786                            73          0.0300%            11     N/A
   29               $98,423                           123          0.0300%            11     N/A
   30               $86,169                       130,106          0.0900%            11     N/A
   31               $79,975                           248          0.0300%            11     N/A
   34               $78,702                       181,895          0.0300%            11     N/A
   35               $71,859                           312          0.0600%            11     N/A
   36               $69,685                        45,899          0.0300%            11     N/A
   38               $68,804                       132,000          0.0300%            11     N/A
   40               $61,084                           208          0.0300%            11     N/A
   41               $58,503                        57,200          0.0300%            11     N/A
   42               $57,877                           264          0.0300%            11     N/A
   44               $56,340                        41,870          0.0300%            11     N/A
   45               $53,608                        61,557          0.0300%            11     N/A
   46               $72,351                            60          0.0300%            11     N/A
   47               $56,118                       109,030          0.0300%            11     N/A
   48               $52,068                        92,792          0.0300%            11     N/A
   49               $51,936                        63,595          0.0300%            11     N/A
   50               $49,180                       102,796          0.0300%            11     N/A
   51               $51,048                       121,620          0.0300%            11     N/A
   53               $50,063                        93,631          0.0300%            11     N/A
   56               $43,669                           192          0.0300%            11     N/A
   57               $44,028                           198          0.0300%            11     N/A
   58               $46,300                           276          0.0300%            11     N/A
   59               $43,886                           238          0.0300%            11     N/A
   60               $47,721                       112,000          0.0300%            11     Yes
   61               $42,430                        94,668          0.0300%            11     N/A
   62               $40,071                           252          0.0300%            11     N/A
   64               $39,965                           240          0.0300%            11     N/A
   65               $37,803                        87,170          0.0300%            11     N/A
   66               $36,790                           128          0.0300%            11     N/A
   67a              $13,243                            62          0.0300%            11     N/A
   67b              $10,925                            50          0.0300%            11     N/A
   67c               $8,277                            48          0.0300%            11     N/A
   67d               $6,787                            30          0.0300%            11     N/A
   67e               $5,132                            22          0.0300%            11     N/A
   69               $36,281                           208          0.0300%            11     N/A
   70               $35,893                           277          0.0300%            11     N/A
   71               $36,701                           217          0.0300%            11     N/A
   72               $36,862                           168          0.0300%            11     N/A
   74               $33,874                        64,851          0.0300%            11     N/A
   75               $33,221                           108          0.0300%            11     N/A
   76               $24,992                       131,575          0.0300%            11     N/A
   78               $34,067                           112          0.0300%            11     N/A
   79               $37,491                           120          0.0300%            11     N/A
   80               $35,134                        30,000          0.0300%            11     N/A
   81               $31,848                           144          0.0300%            11     N/A
   83               $31,221                           136          0.0300%            11     N/A
   84               $29,458                        23,503          0.0300%            11     N/A
   85               $36,663                        58,723          0.0600%            11     N/A
   87               $30,661                        95,061          0.0300%            11     N/A
   88               $25,412                        42,238          0.0300%            11     N/A
   89               $11,487                        11,520          0.0300%            11     N/A
   90               $27,240                           236          0.0300%            11     N/A
   91               $28,149                        30,822          0.0300%            11     N/A
   92               $26,480                        47,932          0.0300%            11     N/A
   93               $25,573                        52,838          0.0300%            11     N/A
   95               $24,680                        57,667          0.0300%            11     N/A
   98               $26,160                           251          0.0300%            11     N/A
   100              $24,234                        79,431          0.0300%            11     N/A
  101a              $14,391                        51,200          0.0300%            11     N/A
  101b              $12,428                        76,430          0.0300%            11     N/A
   102              $24,766                           190          0.0300%            11     N/A
   103              $23,477                           136          0.0300%            11     N/A
   104              $23,343                            99          0.0300%            11     N/A
   105              $21,011                        33,912          0.0300%            11     Yes
   106              $20,767                        49,929          0.0300%            11     N/A
   107              $20,701                        57,275          0.0300%            11     N/A
   108              $19,523                            40          0.0300%            11     N/A
   109              $19,028                        36,472          0.1100%            11     N/A
   111              $20,250                        83,335          0.0300%            11     N/A
   112              $21,688                        82,820          0.0300%            11     N/A
   113              $18,503                       129,730          0.0300%            11     N/A
   114              $18,383                        27,702          0.0300%            11     N/A
   115              $17,760                        13,905          0.0300%            11     Yes
   116              $17,437                        36,657          0.0300%            11     N/A
   119              $21,269                        18,360          0.0300%            11     N/A
   120              $16,373                           159          0.0300%            11     N/A
   121              $16,324                        20,528          0.0300%            11     N/A
   122              $16,075                        17,097          0.0300%            11     N/A
   123              $15,775                        49,006          0.0300%            11     N/A
   124              $15,375                            60          0.0300%            11     N/A
   125              $22,315                            42          0.0300%            11     N/A
   126              $15,455                        28,164          0.0300%            11     N/A
   127              $16,468                           126          0.0300%            11     N/A
   129              $13,432                        13,400          0.0300%            11     N/A
   130              $12,486                        74,644          0.0300%            11     N/A
   131              $11,790                        13,068          0.0300%            11     N/A
   132              $11,007                         8,995          0.0300%            11     N/A
   133              $11,532                        55,137          0.0300%            11     N/A
   134              $11,570                            14          0.0300%            11     N/A
   135              $11,419                           145          0.0300%            11     N/A
   136              $11,256                        10,703          0.0300%            11     N/A
   137              $13,858                            65          0.0300%            11     N/A
   138              $12,023                        41,430          0.0300%            11     N/A
   139              $10,843                           115          0.0300%            11     N/A
   140              $10,517                        16,180          0.0300%            11     N/A
   141              $10,074                        12,139          0.0300%            11     N/A
   142              $10,493                        16,768          0.0300%            11     N/A
   143              $10,119                            69          0.0300%            11     N/A
   144              $11,433                            60          0.0300%            11     N/A
   145              $12,921 (13)                      108          0.0300%             1     N/A
   146              $10,013                        10,160          0.0300%            11     N/A
   147              $10,781                            68          0.0300%            11     N/A
   148               $9,787                        10,800          0.0300%            11     N/A
   149               $8,994                        20,350          0.0300%            11     N/A
   150              $10,803                            26          0.0300%            11     N/A
   151               $9,181                            49          0.0300%            11     N/A
   152               $8,479                        11,916          0.0300%            11     N/A
   153               $8,977                            40          0.0300%            11     N/A
   154               $8,677                        19,617          0.0300%            11     N/A
   155               $7,752                        22,400          0.0300%            11     N/A
   156               $6,798                            36          0.0300%            11     N/A
   157               $7,498                         5,794          0.0300%            11     N/A
   158               $5,798                         8,273          0.0600%            11     Yes
   159               $5,734                            96          0.0300%            11     N/A
   160               $6,197                            28          0.0300%            11     N/A
   161               $6,232                        14,080          0.0300%            11     N/A
   162               $5,812                            40          0.0300%            11     N/A
   163               $5,151                            59          0.0300%            11     N/A
   164               $4,439                            59          0.0300%            11     N/A
   165               $4,446                            32          0.0300%            11     N/A
   166               $4,387                            40          0.0300%            11     N/A

<CAPTION>

                                                                                          Letter
          Defeasance         Earthquake         Environmental                               of
    #        (5)             Insurance            Insurance           Fee/Leasehold       Credit
------------------------------------------------------------------------------------------------------
<S>       <C>               <C>                <C>                   <C>                   <C>
   1a     Yes               N/A                No                    Fee                   N/A
   1b     Yes               N/A                No                    Fee/Leasehold         N/A
   1c     Yes               N/A                No                    Fee                   N/A
   1d     Yes               N/A                No                    Fee                   N/A
    2     Yes               N/A                No                    Leasehold             N/A
    3     Yes               N/A                No                    Fee                   N/A
    4     Yes               N/A                No                    Fee                   N/A
    7     Yes               N/A                No                    Fee                   N/A
    8     Yes               N/A                No                    Fee                   N/A
    9     Yes               N/A                No                    Fee                   N/A
   10     Yes               N/A                No                    Fee                   N/A
   12     Yes               N/A                No                    Fee                   N/A
   13     Yes               N/A                No                    Fee                   N/A
   14     Yes               N/A                No                    Leasehold             N/A
   16     Yes               N/A                No                    Fee                   N/A
   17     Yes               N/A                No                    Fee                   N/A
   18     Yes               N/A                No                    Fee                   N/A
   21     Yes               N/A                No                    Fee                   N/A
   22     Yes               N/A                No                    Fee                   N/A
   23     Yes               N/A                No                    Fee                   N/A
   25     Yes               N/A                No                    Fee                   N/A
   28     Yes               N/A                No                    Fee                   N/A
   29     Yes               N/A                No                    Fee                   N/A
   30     Yes               N/A                No                    Fee                   N/A
   31     Yes               N/A                No                    Fee                   N/A
   34     Yes               N/A                No                    Fee                   N/A
   35     Yes               N/A                No                    Fee                   N/A
   36     Yes               N/A                No                    Fee                   N/A
   38     No                N/A                No                    Fee                   N/A
   40     Yes               N/A                No                    Fee                   N/A
   41     Yes               N/A                No                    Fee                   N/A
   42     Yes               N/A                No                    Fee                   N/A
   44     Yes               N/A                No                    Fee                   N/A
   45     Yes               N/A                No                    Fee                   N/A
   46     Yes               N/A                No                    Leasehold             N/A
   47     Yes               N/A                No                    Fee                   N/A
   48     Yes               N/A                No                    Fee                   N/A
   49     Yes               N/A                No                    Fee                   N/A
   50     Yes               N/A                No                    Fee                   N/A
   51     Yes               N/A                No                    Fee                   N/A
   53     Yes               N/A                No                    Fee                   N/A
   56     Yes               N/A                No                    Fee                   N/A
   57     Yes               N/A                No                    Fee                   N/A
   58     Yes               N/A                No                    Fee                   N/A
   59     Yes               N/A                No                    Fee                   N/A
   60     Yes               N/A                No                    Fee                   Yes
   61     Yes               N/A                No                    Fee                   N/A
   62     Yes               N/A                No                    Fee                   N/A
   64     Yes               N/A                No                    Fee                   N/A
   65     Yes               N/A                No                    Fee                   N/A
   66     Yes               N/A                No                    Fee                   N/A
   67a    No                N/A                Yes                   Fee                   N/A
   67b    No                N/A                Yes                   Fee                   N/A
   67c    No                N/A                Yes                   Fee                   N/A
   67d    No                N/A                Yes                   Fee                   N/A
   67e    No                N/A                Yes                   Fee                   N/A
   69     Yes               N/A                No                    Fee                   N/A
   70     Yes               N/A                No                    Fee                   N/A
   71     Yes               N/A                No                    Fee                   N/A
   72     Yes               N/A                No                    Fee                   N/A
   74     Yes               N/A                No                    Fee                   N/A
   75     Yes               N/A                No                    Fee                   N/A
   76     Yes               N/A                No                    Fee                   N/A
   78     Yes               N/A                No                    Fee                   N/A
   79     Yes               N/A                No                    Fee                   N/A
   80     Yes               N/A                No                    Fee                   N/A
   81     Yes               N/A                No                    Fee                   N/A
   83     Yes               N/A                No                    Fee                   N/A
   84     Yes               N/A                No                    Fee                   N/A
   85     Yes               N/A                No                    Fee                   N/A
   87     Yes               N/A                No                    Fee                   N/A
   88     Yes               N/A                No                    Fee                   N/A
   89     Yes               N/A                No                    Fee                   N/A
   90     Yes               N/A                No                    Fee                   N/A
   91     Yes               N/A                No                    Fee                   N/A
   92     Yes               N/A                No                    Fee                   N/A
   93     Yes               N/A                No                    Fee                   N/A
   95     Yes               N/A                No                    Fee                   N/A
   98     Yes               N/A                No                    Fee                   N/A
   100    Yes               N/A                No                    Fee                   Yes
  101a    Yes               N/A                Yes                   Fee                   N/A
  101b    Yes               N/A                Yes                   Fee                   N/A
   102    Yes               N/A                No                    Fee                   N/A
   103    Yes               N/A                No                    Fee                   N/A
   104    Yes               N/A                No                    Fee                   N/A
   105    Yes               N/A                No                    Fee                   N/A
   106    Yes               N/A                No                    Fee                   N/A
   107    Yes               N/A                No                    Fee                   N/A
   108    Yes               N/A                Yes                   Fee                   N/A
   109    Yes               N/A                No                    Fee                   N/A
   111    Yes               N/A                Yes                   Fee                   N/A
   112    Yes               N/A                No                    Fee                   N/A
   113    Yes               N/A                No                    Fee                   N/A
   114    No                N/A                No                    Fee                   N/A
   115    Yes               N/A                No                    Fee                   N/A
   116    Yes               N/A                No                    Fee                   N/A
   119    Yes               N/A                No                    Fee                   N/A
   120    Yes               N/A                No                    Fee                   N/A
   121    Yes               N/A                No                    Fee                   N/A
   122    Yes               N/A                No                    Fee                   N/A
   123    Yes               N/A                No                    Leasehold             N/A
   124    Yes               N/A                No                    Fee                   N/A
   125    Yes               N/A                No                    Leasehold             N/A
   126    Yes               N/A                No                    Fee                   N/A
   127    Yes               N/A                Yes                   Fee                   N/A
   129    Yes               N/A                No                    Fee                   N/A
   130    Yes               N/A                Yes                   Fee                   N/A
   131    Yes               N/A                Yes                   Fee                   N/A
   132    Yes               N/A                No                    Fee                   N/A
   133    Yes               N/A                Yes                   Fee                   N/A
   134    Yes               N/A                Yes                   Fee                   N/A
   135    Yes               N/A                Yes                   Fee                   N/A
   136    Yes               N/A                No                    Fee                   N/A
   137    No                N/A                Yes                   Fee                   N/A
   138    Yes               N/A                Yes                   Fee                   N/A
   139    Yes               N/A                Yes                   Fee                   N/A
   140    Yes               N/A                No                    Fee                   N/A
   141    Yes               N/A                No                    Fee                   N/A
   142    Yes               N/A                Yes                   Fee                   N/A
   143    Yes               N/A                Yes                   Fee                   N/A
   144    Yes               N/A                No                    Fee                   N/A
   145    Yes               N/A                No                    Fee                   N/A
   146    Yes               N/A                No                    Fee                   N/A
   147    Yes               N/A                Yes                   Fee                   N/A
   148    No                N/A                No                    Fee                   N/A
   149    No                N/A                No                    Fee                   N/A
   150    Yes               N/A                Yes                   Fee                   N/A
   151    Yes               N/A                Yes                   Fee                   N/A
   152    Yes               N/A                Yes                   Fee                   N/A
   153    Yes               N/A                Yes                   Fee                   N/A
   154    Yes               N/A                Yes                   Fee                   N/A
   155    No                N/A                Yes                   Fee                   N/A
   156    Yes               N/A                Yes                   Fee                   N/A
   157    Yes               N/A                No                    Fee                   N/A
   158    Yes               N/A                Yes                   Fee                   N/A
   159    Yes               N/A                Yes                   Fee                   N/A
   160    No                N/A                Yes                   Fee                   N/A
   161    Yes               N/A                No                    Fee                   N/A
   162    Yes               N/A                Yes                   Fee                   N/A
   163    No                N/A                No                    Fee                   N/A
   164    Yes               N/A                Yes                   Fee                   N/A
   165    Yes               N/A                Yes                   Fee                   N/A
   166    Yes               N/A                Yes                   Fee                   N/A
</TABLE>

A     The Underlying Mortgage Loans secured by Bexley Creekside Apartments and
      Bexley Commons at Rosedale Apartments are cross-collateralized and
      cross-defaulted, respectively.

B     The Underlying Mortgage Loans secured by BP Sweetwater Ranch Apartments,
      BP Prescott Place II Apartments, BP Prescott Place I Apartments and BP
      Berkshire of Addison Apartments are cross-collateralized and
      cross-defaulted, respectively.

C     The Underlying Mortgage Loans secured by BP Huntington Lakes Apartments,
      BP Huntington Ridge Apartments and BP Berkshire Springs Apartments are
      cross-collateralized and cross-defaulted, respectively.

D     The Underlying Mortgage Loans secured by Highland - Highland Park Place
      and Highland - 13939 Livernois Avenue are cross-collateralized and
      cross-defaulted, respectively.

1     Assumes a Cut-off Date in March 2005.

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     Anticipated Repayment Date.

4     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 due after the initial interest only
      term.

5     "Yes" means that defeasance is permitted notwithstanding the Lockout
      Period.

13    The principal and interest payment for this loan was calculated so that
      this loan would completely amortize over 360 periods using an act/360
      accrual basis.

<PAGE>

                                 EXHIBIT B-2

                      SCHEDULE OF GMACCM MORTGAGE LOANS

<TABLE>
<CAPTION>

 #     Crossed                    Property Name
------------------------------------------------------------------
<S>             <C>
  5             The Mansards
  6             Sheraton Premiere Tysons Corner
 11             Shoppes at Brinton Lake
 15             The Mall at Yuba City
 19             National and Hayden Complex
 20             Auburn Apartments
 24             Vintage Pointe Apartments
 26             Hampton Inn & Suites - Reagan National Airport
 27             Courtyard-Cypress
 32             The Regions Financial Tower
 33             New Haven Plaza
 37             Courtyard-Shadyside
 39             Meadows Manor Mobile Home Park
 43             Howard and Western Retail
 52             Hanford Town Center
 54             Jenkintown Plaza
 55             Residence Inn - Frederick
 63             Belvedere Park Plaza
 68             3400 Dundee Road
 73             Austin Heights
 77             Brown and Gilbert Plaza
 82             Hampton Inn - San Antonio
 86a            Stor-Rite Dr. Andre's Way
 86b            Stor-Rite 3750 East Industrial Way
 86c            Stor-Rite N.E. 4th Street
 94             JFK Medical Pavilion II
 96             Walgreens (Auburn)
 97             Pleasant Grove Self Storage Facility
 99a            Hobby Lobby Plaza
 99b            Kmart
 110            Grandview Plaza
 117            Parkway Villa Apartments
 118            Lancaster Court Apartments
 128            Skyline Office Plaza

<CAPTION>
  #                                         Address
------------------------------------------------------------------------
<S>    <C>
  5    1818 Mansard Boulevard
  6    8661 Leesburg Pike
  11   951 Baltimore Pike
  15   1215 Colusa Avenue
  19   3520-3542 Hayden Avenue and 8536 National Boulevard
  20   801 East Woodcroft Parkway
  24   5600 Carmichael Road
  26   2000 Jefferson Davis Highway
  27   5865 Katella Avenue
  32   1555 Palm Beach Lakes Boulevard
  33   267 Beach 14th Street
  37   5308 Liberty Avenue
  39   49 Blanca Lane
  43   7510-7572 North Western Avenue
  52   550 & 700 North Eleventh Avenue
  54   101 Greenwood Avenue
  55   5230 Westview Drive
  63   6870 North 9th Avenue
  68   3400 Dundee Road
  73   1533 Austin Highway
  77   1911-1933 East Brown Road & 1106 North Gilbert Road
  82   414 Bowie Street
 86a   1880 Dr. Andre's Way
 86b   3750 E. Industrial Way
 86c   330-358 N.E. 4th Street
  94   8200 Jog Road
  96   1701 Auburn Way South
  97   7101 Galilee Road
 99a   1950 Tiffin Avenue
 99b   140 Whalon Street
 110   5802-5858 West Camelback Road
 117   132-C 14th Avenue Northeast
 118   420 Hershey Avenue
 128   6262 North Swan Road

<CAPTION>
                                                                                Net
                                                                Mortgage     Mortgage
                                                                Rate at       Rate at         Original
  #                City                 State     Zip Code      Cut-Off       Cut-off         Balance
-------------------------------------------------------------------------------------------------------------
<S>   <C>                                <C>           <C>              <C>        <C>        <C>
  5   Griffith                            IN        46319            5.210%     5.1084%    $52,000,000
  6   Vienna                              VA        22182            5.220%     5.1899%    $51,500,000
 11   Concord Township                    PA        19342            5.480%     5.3784%    $45,500,000
 15   Yuba City                           CA        95991            5.570%     5.4684%    $36,000,000 (6)
 19   Culver City                         CA        90232            5.620%     5.5184%    $25,750,000 (7)
 20   Durham                              NC        27713            5.320%     5.2184%    $23,785,000
 24   Montgomery                          AL        36117            5.250%     5.1484%    $18,300,000 (8)
 26   Arlington                           VA        22202            6.350%     6.2890%    $17,000,000
 27   Cypress                             CA        90630            5.690%     5.6273%    $16,100,000
 32   West Palm Beach                     FL        33401            5.580%     5.4784%    $15,000,000
 33   Far Rockaway                        NY        11691            5.700%     5.6334%    $14,500,000
 37   Pittsburgh                          PA        15224            5.690%     5.6204%    $12,500,000
 39   Watsonville                         CA        95076            5.360%     5.2584%    $11,500,000
 43   Chicago                             IL        60645            5.310%     5.2084%    $10,000,000
 52   Hanford                             CA        93230            5.390%     5.2884%     $8,600,000
 54   Jenkintown                          PA        19046            5.820%     5.7384%     $8,320,000
 55   Frederick                           MD        21703            5.920%     5.8381%     $8,250,000
 63   Pensacola                           FL        32504            5.200%     5.0984%     $7,100,000
 68   Northbrook                          IL        60062            5.625%     5.5234%     $6,600,000
 73   San Antonio                         TX        78218            5.550%     5.4484%     $6,200,000
 77   Mesa                                AZ        85203            5.420%     5.3184%     $6,000,000
 82   San Antonio                         TX        78205            5.390%     5.2945%     $5,700,000
 86a  Delray Beach                        FL        33445            5.390%     5.2884%     $2,511,628
 86b  West Palm Beach                     FL        33404            5.390%     5.2884%     $1,460,710
 86c  Delray Beach                        FL        33483            5.390%     5.2884%     $1,427,662
 94   Boynton Beach                       FL        33437            6.020%     5.8934%     $4,575,000
 96   Auburn                              WA        98002            5.890%     5.7884%     $4,300,000
 97   Roseville                           CA        95678            5.570%     5.4684%     $4,300,000 (9)
 99a  Findlay                             OH        45840            5.650%     5.5484%     $2,800,000
 99b  Fitchburg and Leominster            MA        1420             5.650%     5.5484%     $1,400,000
 110  Glendale                            AZ        85301            5.440%     5.3134%     $3,250,000 (10)
 117  Center Point                        AL        35215            5.030%     4.9284%     $3,045,000
 118  Lancaster                           PA        17603            5.540%     5.4384%     $3,000,000
 128  Tucson                              AZ        85718            5.420%     5.3184%     $2,400,000

<CAPTION>
                            Remaining
                             Term to                                           Original             Remaining
            Cut-Off          Maturity        Maturity                        Amortization         Amortization
  #       Balance (1)        (1) (2)           Date           ARD (3)            Term               Term (1)
--------------------------------------------------------------------------------------------------------------------
<S>           <C>                     <C>      <C>         <C>                     <C>                   <C>
  5           $52,000,000             82       1/1/2012    N/A                     360                   360
  6           $51,332,283             61       4/1/2010    N/A                     300                   298
  11          $45,500,000            118       1/1/2015    N/A                     360                   360
  15          $36,000,000            115      10/1/2014    N/A                     360                   360
  19          $25,690,768            118       1/1/2015    N/A                     360                   358
  20          $23,785,000            118       1/1/2015    N/A                     360                   360
  24          $18,300,000            119       2/1/2015    N/A                     360                   360
  26          $16,885,692            115      10/1/2014    N/A                     300                   295
  27          $16,100,000            118       1/1/2015    N/A                     300                   300
  32          $15,000,000            119       2/1/2015    N/A                     300                   300
  33          $14,467,080            118       1/1/2015    N/A                     360                   358
  37          $12,443,022            117      12/1/2014    N/A                     300                   297
  39          $11,500,000             59       2/1/2010    N/A                     360                   360
  43           $9,975,799            118       1/1/2015    N/A                     360                   358
  52           $8,600,000            120       3/1/2015    N/A                     360                   360
  54           $8,320,000            114       9/1/2014    N/A                     360                   360
  55           $8,213,690            117      12/1/2014    N/A                     300                   297
  63           $7,100,000            120       3/1/2015    N/A                     300                   300
  68           $6,590,882            119       2/1/2015    N/A                     360                   359
  73           $6,200,000            118       1/1/2015    N/A                     360                   360
  77           $5,985,739            118       1/1/2015    N/A                     360                   358
  82           $5,672,797            117      12/1/2014    N/A                     300                   297
 86a           $2,511,628             58       1/1/2010    N/A           Interest Only          Interest Only
 86b           $1,460,710             58       1/1/2010    N/A           Interest Only          Interest Only
 86c           $1,427,662             58       1/1/2010    N/A           Interest Only          Interest Only
  94           $4,504,390            104      11/1/2013    N/A                     360                   344
  96           $4,300,000            240       3/1/2025    N/A                     240                   240
  97           $4,294,024            119       2/1/2015    N/A                     360                   359
 99a           $2,794,858            119       2/1/2015    N/A                     300                   299
 99b           $1,397,429            119       2/1/2015    N/A                     300                   299
 110           $3,250,000            120       3/1/2015    N/A                     360                   360
 117           $3,045,000            117      12/1/2014    N/A                     360                   360
 118           $2,993,008            118       1/1/2015    N/A                     360                   358
 128           $2,394,296            118       1/1/2015    N/A                     360                   358

<CAPTION>

                                                             Master
                Monthly                    Sq.              Servicing                        ARD Loan
  #           Payment (4)             Ft./Rooms/Pads        Fee Rate         Due Date          (3)
---------------------------------------------------------------------------------------------------------
<S>              <C>                               <C>           <C>                  <C>      <C>
  5              $285,859                          1,337         0.1000%              1        N/A
  6              $307,702                            437         0.0285%              1        N/A
  11             $257,773                        192,647         0.1000%              1        N/A
  15             $205,988 (11)                   305,887         0.1000%              1        N/A
  19             $148,150                        143,040         0.1000%              1        N/A
  20             $132,375                            328         0.1000%              1        N/A
  24             $101,053                            520         0.1000%              1        N/A
  26             $113,197                            161         0.0594%              1        N/A
  27             $100,703 (12)                       180         0.0611%              1        N/A
  32              $92,831                        174,603         0.1000%              1        N/A
  33              $84,158                            344         0.0650%              1        N/A
  37              $78,186                            132         0.0680%              1        N/A
  39              $64,289                            255         0.1000%              1        N/A
  43              $55,593                         88,404         0.1000%              1        N/A
  52              $48,238 (11)                   102,206         0.1000%              1        N/A
  54              $48,924 (12)                    98,839         0.0800%              1        N/A
  55              $52,752                             90         0.0803%              1        N/A
  63              $42,337                        125,690         0.1000%              1        N/A
  68              $37,993                         75,061         0.1000%              1        N/A
  73              $35,398                         59,692         0.1000%              1        N/A
  77              $33,767                         71,856         0.1000%              1        N/A
  82              $34,630                            169         0.0939%              1        N/A
 86a              $11,438                         58,384         0.1000%              1        N/A
 86b               $6,652                         30,784         0.1000%              1        N/A
 86c               $6,502                         31,874         0.1000%              1        N/A
  94              $27,488                         25,565         0.1250%              1        N/A
  96              $30,534                         14,560         0.1000%              1        N/A
  97              $24,604                        101,202         0.1000%              1        N/A
 99a              $17,446                         73,349         0.1000%              1        N/A
 99b               $8,723                        100,685         0.1000%              1        N/A
 110              $18,331                         86,799         0.1250%              1        N/A
 117              $16,402                            156         0.1000%              1        N/A
 118              $17,109                             88         0.1000%              1        N/A
 128              $13,507                         20,477         0.1000%              1        N/A

<CAPTION>

                                                                                        Letter
       Defeasance        Earthquake        Environmental                                  of
  #        (5)           Insurance           Insurance            Fee/Leasehold         Credit
------------------------------------------------------------------------------------------------------
<S>    <C>               <C>              <C>                   <C>                       <C>
  5    Yes               N/A              No                    Fee                       N/A
  6    Yes               N/A              No                    Fee                       N/A
  11   Yes               N/A              No                    Fee                       N/A
  15   Yes               N/A              No                    Fee                       (14)
  19   Yes               N/A              No                    Fee                       (15)
  20   Yes               N/A              No                    Fee                       N/A
  24   Yes               N/A              No                    Fee                       N/A
  26   Yes               N/A              No                    Fee                       N/A
  27   Yes               N/A              No                    Fee                       N/A
  32   Yes               N/A              Yes                   Fee                       N/A
  33   Yes               N/A              No                    Fee                       N/A
  37   Yes               N/A              No                    Fee/Leasehold             N/A
  39   Yes               N/A              No                    Fee                       N/A
  43   Yes               N/A              No                    Fee                       N/A
  52   Yes               N/A              No                    Fee                       N/A
  54   Yes               N/A              No                    Fee                       N/A
  55   Yes               N/A              No                    Fee                       N/A
  63   Yes               N/A              No                    Fee                       N/A
  68   Yes               N/A              No                    Fee                       N/A
  73   Yes               N/A              No                    Fee                       N/A
  77   Yes               N/A              No                    Fee                       N/A
  82   Yes               N/A              No                    Fee                       N/A
 86a   Yes               N/A              No                    Fee                       N/A
 86b   Yes               N/A              No                    Fee                       N/A
 86c   Yes               N/A              No                    Fee                       N/A
  94   Yes               N/A              No                    Fee                       N/A
  96   Yes               N/A              No                    Fee                       N/A
  97   Yes               N/A              No                    Fee                       N/A
 99a   Yes               N/A              No                    Fee                       N/A
 99b   Yes               N/A              No                    Fee                       N/A
 110   Yes               N/A              No                    Fee                       N/A
 117   Yes               N/A              No                    Fee                       N/A
 118   Yes               N/A              No                    Fee                       N/A
 128   Yes               N/A              No                    Fee                       N/A
</TABLE>

A     The Underlying Mortgage Loans secured by Bexley Creekside Apartments and
      Bexley Commons at Rosedale Apartments are cross-collateralized and
      cross-defaulted, respectively.

B     The Underlying Mortgage Loans secured by BP Sweetwater Ranch Apartments,
      BP Prescott Place II Apartments, BP Prescott Place I Apartments and BP
      Berkshire of Addison Apartments are cross-collateralized and
      cross-defaulted, respectively.

C     The Underlying Mortgage Loans secured by BP Huntington Lakes Apartments,
      BP Huntington Ridge Apartments and BP Berkshire Springs Apartments are
      cross-collateralized and cross-defaulted, respectively.

D     The Underlying Mortgage Loans secured by Highland - Highland Park Place
      and Highland - 13939 Livernois Avenue are cross-collateralized and
      cross-defaulted, respectively.

1     Assumes a Cut-off Date in March 2005.

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     Anticipated Repayment Date.

4     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 due after the initial interest only
      term.

5     "Yes" means that defeasance is permitted notwithstanding the Lockout
      Period.

6     The Mall at Yuba City mortgage loan is structured with a $6,000,000
      earnout amount. The Cut-Off Date LTV Ratio and U/W DSCR shown are net of
      the earnout. Balloon LTV is shown at full leverage.

7     The National and Hayden mortgage loan is structured with a $2,250,000
      earnout amount. The Cut-Off Date LTV Ratio and U/W DSCR shown are net of
      the earnout. Balloon LTV is shown at full leverage.

8     The Vintage Pointe Apartments mortgage loan is structured with a $600,000
      earnout amount. The Cut-Off Date LTV Ratio and U/W DSCR shown are net of
      the earnout. Balloon LTV is shown at full leverage.

9     The Pleasant Grove Self Storage Facility mortgage loan is structured with
      a $370,000 earnout amount. The Cut-Off Date LTV Ratio and U/W DSCR shown
      are net of the earnout. Balloon LTV is shown at full leverage.

10    The Grandview Plaza mortgage loan is structured with a $180,000 earnout
      amount. The Cut-Off Date LTV Ratio and U/W DSCR shown are net of the
      earnout. Balloon LTV is shown at full leverage.

11    Monthly payment during the Initial Interest Only Term shall be an amount
      equal to the product of the respective interest rate, the then outstanding
      balance and 1.0138889 divided by 12.

12    Monthly payment during the Initial Interest Only Term shall be an amount
      equal to the product of the respective interest rate and the then
      outstanding balance divided by 12.

14    At origination, borrower was required to establish various reserves which
      included a deposit of $1,500,000 into an immediate repair reserve and
      $1,500,000 into a tenant improvement and leasing commission reserve (such
      $3,000,000 of reserves, the "Cash Earnout Reserve"). The Cash Earnout
      Reserve is held by lender together with an irrevocable letter of credit in
      an initial amount of $3,000,000 as collateral to pay down the loan if
      certain financial criteria are not satisfied (collectively the earnout
      reserve). Although the Cash Earnout Reserve may be used by borrower for
      certain property related needs, prior to meeting such financial criteria,
      as a condition precedent to any disbursement from the Cash Earnout
      Reserve, borrower must cause the amount of the letter of credit to be
      increased by the amount of such disbursement. Prior to 8/22/2007,
      generally the amount of the letter of credit may be reduced (in whole or
      in part) if the property meets such financial criteria after giving effect
      to any such r

15    The borrower delivered an Irrevocable Standby Letter of Credit (LOC) in
      the amount of $675,000 which is a security deposit for the XAP lease. Any
      drawing of the LOC shall be deposited into the TI/LC Reserve. The lender
      shall release the balance of the LOC upon receipt of evidence that the XAP
      premises has been leased for a term of not less than 3 years at a market
      rental rate and the lender has received an estoppel certificate confirming
      that such tenant is occupying the premises and paying full rent. In the
      event that XAP elects to decrease the LOC in accordance with the Lease, a
      replacement LOC shall be delivered to the lender in accordance with the
      Loan Documents.

<PAGE>

                                 EXHIBIT C-1

              LIST OF ADDITIONAL COLLATERAL TRUST MORTGAGE LOANS

                         Highland - Highland Park Place
                        Lohman's Crossing Shopping Center
                           Midland Heights Apartments
                                Paseo Marketplace
                          Rancho Vista Industrial 5 & 6
                           Shoppes of Plantation Acres
                               Shops on Montevallo
                           National and Hayden Complex
                              The Mall at Yuba City
                         Ashford Village Shopping Center
                                  Valley Plaza

<PAGE>

                                   EXHIBIT C-2

                             LIST OF MEZZANINE LOANS

                              GGP Retail Portfolio
                         BP Sweetwater Ranch Apartments
                         BP Prescott Place II Apartments
                         BP Prescott Place I Apartments
                       BP Berkshire of Addison Apartments
                             Shoppes at Briton Lake
                                Mall at Yuba City
                         BP Huntington Lakes Apartments
                         BP Huntington Ridge Apartments
                              BP Berkshire Springs
                             Cross Creek Apartments
                          BP Berkshire Hills Apartments
                          BP Pleasant Woods Apartments

<PAGE>

                                   EXHIBIT D-1

                   FORM OF MASTER 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 2005-C1
                  -------------------------------------------------------------

            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 March 1, 2005 (the "Pooling and Servicing Agreement"), among Credit Suisse
First Boston Mortgage Securities Corp., as depositor, GMAC Commercial Mortgage
Corporation, as master servicer (in such capacity, the "Master Servicer"),
Lennar Partners, Inc., as special servicer (in such capacity, the "Special
Servicer"), and you, as trustee (in such capacity, the "Trustee"), the
undersigned as Master Servicer 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 Servicer

                                    By: ________________________________________
                                    Name:
                                    Title:

<PAGE>

                                   EXHIBIT D-2

                  FORM OF 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 2005-C1
                  -------------------------------------------------------------

            In connection with the administration of the Mortgage Files held by
or on behalf of you as trustee under a Pooling and Servicing Agreement, dated as
of March 1, 2005 (the "Pooling and Servicing Agreement"), among Credit Suisse
First Boston Mortgage Securities Corp., as depositor, GMAC Commercial Mortgage
Corporation, as master servicer (in such capacity, the "Master Servicer"),
Lennar Partners, Inc., as special servicer (in such capacity, the "Special
Servicer"), and you, as trustee (in such capacity, the "Trustee"), the
undersigned as Special Servicer 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.    The Mortgage Loan is being foreclosed.

______      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 is being foreclosed, in which case the Mortgage File (or such portion
thereof) will be returned when no longer required by us for such purpose.

            Capitalized terms used but not defined herein shall have the
meanings ascribed to them in the Pooling and Servicing Agreement.

                                    ____________________________________________
                                    as Special Servicer

                                    By: ________________________________________
                                    Name:
                                    Title:

<PAGE>

                                    EXHIBIT E

                             FORM OF TRUSTEE REPORT

<TABLE>
<S>                          <C>                                                     <C>
---------
|       |
| WELLS |                                                                            ----------------------------------------------
| FARGO |                                                                            | For Additional Information, please contact |
|       |                    Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
---------                        Commercial Mortgage Pass-Through Certificates       |               (301) 815 -6600              |
                                                Series 2005-C1                       |   Reports Available on the World Wide Web  |
Wells Fargo Bank, N.A.                                                               |           @ www.ctslink.com/cmbs           |
Corporate Trust Services                                                             ----------------------------------------------
9062 Old Annapolis Road                                                                 Payment Date:      04/15/2005
Columbia, MD 21045-1951                                                                 Record Date:       03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

<CAPTION>

                                                   DISTRIBUTION DATE STATEMENT

                                                        Table of Contents

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

                          STATEMENT SECTIONS                                                     PAGE(s)
                          ------------------                                                     -------
<S>                                                                                                  <C>
                          Certificate Distribution Detail                                            2
                          Certificate Factor Detail                                                  3
                          Reconciliation Detail                                                      4
                          Other Required Information                                                 5
                          Cash Reconciliation                                                        6
                          Ratings Detail                                                             7
                          Current Mortgage Loan and Property Stratification Tables                 8 - 10
                          Mortgage Loan Detail                                                      11
                          Principal Prepayment Detail                                               12
                          Historical Detail                                                         13
                          Delinquency Loan Detail                                                   14
                          Specially Serviced Loan Detail                                          15 - 16
                          Modified Loan Detail                                                      17
                          Liquidated Loan Detail                                                    18
                          --------------------------------------------------------------------------------

<CAPTION>

                 Depositor                                   Master Servicer                            Special Servicer
-------------------------------------------     ---------------------------------------    -----------------------------------------
<S>                                             <C>                                        <C>
Credit Suisse First Boston Mortgage             GMAC Commercial Mortgage Corporation       Lennar Partners, Inc.
Securities Corp.                                550 California Street                      760 N.W. 107th Avenue
11 Madison Avenue, 5th Floor                    San Francisco, CA 94104                    Miami, FL 33172
New York, NY 10010

Contact:         General Information Number     Contact:        CMBS Portfolio Manager     Contact:        Steve Bruha
Phone Number:    (212) 325-2000                 Phone Number:   (415) 835-9200             Phone Number:   (305) 229-6614
-------------------------------------------     ---------------------------------------    -----------------------------------------

This report has been compiled from information provided to Wells Fargo Bank, N.A. by various third parties, which may include the
Master Servicer, Special Servicer and others. Wells Fargo Bank, N.A. has not independently confirmed the accuracy of information
received from these third parties and assumes no duty to do so. Wells Fargo Bank, N.A. expressly disclaims any responsibility for
the accuracy or completeness of informati on furnished by third parties.

------------------------------------------------------------------------------------------------------------------------------------
Copyright , Wells Fargo Bank, N.A.                                                                                    Page 1 of 18
</TABLE>

<PAGE>
<TABLE>
<S>                          <C>                                                     <C>
---------
|       |
| WELLS |                                                                            ----------------------------------------------
| FARGO |                                                                            | For Additional Information, please contact |
|       |                    Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
---------                        Commercial Mortgage Pass-Through Certificates       |               (301) 815 -6600              |
                                                Series 2005-C1                       |   Reports Available on the World Wide Web  |
Wells Fargo Bank, N.A.                                                               |           @ www.ctslink.com/cmbs           |
Corporate Trust Services                                                             ----------------------------------------------
9062 Old Annapolis Road                                                                 Payment Date:      04/15/2005
Columbia, MD 21045-1951                                                                 Record Date:       03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

<CAPTION>
                                                   Certificate Distribution Detail

------------------------------------------------------------------------------------------------------------------------------------
                                                                                        Realized
                                                                                        Loss /                              Current
                                                                                        Additional                          Subordi-
             Pass-Through  Original  Beginning  Principal     Interest     Prepayment   Trust          Total        Ending  nation
Class  CUSIP Rate          Balance   Balance    Distribution  Distribution Premium      Fund Expenses  Distribution Balance Level
------------------------------------------------------------------------------------------------------------------------------------
<S>          <C>               <C>       <C>       <C>        <C>          <C>          <C>            <C>          <C>     <C>
A-1          0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
A-2          0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
A-3          0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
A-AB         0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
A-4          0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
A-J          0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
B            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
C            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
D            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
E            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
F            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
G            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
H            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
J            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
K            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
L            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
M            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
N            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
O            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
P            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
R            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
LR           0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
V            0.000000%         0.00      0.00      0.00       0.00         0.00         0.00           0.00         0.00    0.00%
------------------------------------------------------------------------------------------------------------------------------------
Totals
------------------------------------------------------------------------------------------------------------------------------------

<CAPTION>

------------------------------------------------------------------------------------------------
                           Original  Beginning                                          Ending
             Pass-Through  Notional  Notional   Interest      Prepayment   Total        Notional
Class  CUSIP Rate          Amount    Amount     Distribution  Premium      Distribution Amount
------------------------------------------------------------------------------------------------
<S>          <C>               <C>       <C>       <C>        <C>          <C>          <C>
A-X          0.000000%         0.00      0.00      0.00       0.00         0.00         0.00
A-SP         0.000000%         0.00      0.00      0.00       0.00         0.00         0.00
------------------------------------------------------------------------------------------------

(1) Calculated by taking (A) the sum of the ending certificate balance of all classes less (B) the sum of (i) the ending certificate
balance of the designated class and (ii) the ending certificate balance of all classes which are not subordinate to the des ignated
class and dividing the result by (A).
------------------------------------------------------------------------------------------------------------------------------------
Copyright , Wells Fargo Bank, N.A.                                                                                    Page 2 of 18
</TABLE>

<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
---------
|       |
| WELLS |                                                                            ----------------------------------------------
| FARGO |                                                                            | For Additional Information, please contact |
|       |                    Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
---------                        Commercial Mortgage Pass-Through Certificates       |               (301) 815 -6600              |
                                                Series 2005-C1                       |   Reports Available on the World Wide Web  |
Wells Fargo Bank, N.A.                                                               |           @ www.ctslink.com/cmbs           |
Corporate Trust Services                                                             ----------------------------------------------
9062 Old Annapolis Road                                                                 Payment Date:      04/15/2005
Columbia, MD 21045-1951                                                                 Record Date:       03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

                                                      Certificate Factor Detail

<CAPTION>

                                                                                                     Realized Loss /
                      Beginning            Principal           Interest           Prepayment         Additional Trust        Ending
Class      CUSIP       Balance            Distribution        Distribution         Premium           Fund Expenses           Balance
------------------------------------------------------------------------------------------------------------------------------------
<S>        <C>         <C>                 <C>                 <C>                 <C>                 <C>                <C>
  A-1                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
  A-2                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
  A-3                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
 A-AB                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
  A-4                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
  A-J                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    B                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    C                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    D                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    E                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    F                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    G                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    H                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    J                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    K                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    L                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    M                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    N                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    O                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    P                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    R                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
   LR                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
    V                  0.00000000          0.00000000          0.00000000          0.00000000          0.00000000         0.00000000
------------------------------------------------------------------------------------------------------------------------------------

<CAPTION>

                      Beginning                                                    Ending
                      Notional             Interest             Prepayment         Notional
Class      CUSIP      Amount               Distribution         Premium            Amount
----------------------------------------------------------------------------------------------
<S>        <C>        <C>                  <C>                  <C>                <C>
 A-X                  0.00000000           0.00000000           0.00000000         0.00000000
A-SP                  0.00000000           0.00000000           0.00000000         0.00000000
----------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------
Copyright , Wells Fargo Bank, N.A.                                                                                    Page 3 of 18
</TABLE>

<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
---------
|       |
| WELLS |                                                                            ----------------------------------------------
| FARGO |                                                                            | For Additional Information, please contact |
|       |                     Credit Suisse First Boston Mortgage Securities Corp.   |          CTSLink Customer Service          |
---------                        Commercial Mortgage Pass-Through Certificates       |               (301) 815 -6600              |
                                                Series 2005-C1                       |   Reports Available on the World Wide Web  |
Wells Fargo Bank, N.A.                                                               |           @ www.ctslink.com/cmbs           |
Corporate Trust Services                                                             ----------------------------------------------
9062 Old Annapolis Road                                                                 Payment Date:      04/15/2005
Columbia, MD 21045-1951                                                                 Record Date:       03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                                    Reconciliation Detail

          Advance Summary

P & I Advances Outstanding                                      0.00
Servicing Advances Outstanding                                  0.00

Reimbursement for Interest on P & I                             0.00
Advances paid from general collections

Reimbursement for Interest on Servicing                         0.00
Advances paid from general collections

               Master Servicing Fee Summary

Current Period Accrued Master Servicing Fees                    0.00
Less Master Servicing Fees on Delinquent Payments               0.00

Less Reductions to Master Servicing Fees                        0.00

Plus Master Servicing Fees for Delinquent Payments Received     0.00
Plus Adjustments for Prior Master Servicing Calculation         0.00

Total Master Servicing Fees Collected                           0.00

                                  Certificate Interest Reconciliation

<TABLE>
<CAPTION>

                           Uncovered                         Certificate     Unpaid        Optimal
            Accrued        Prepayment                        Deferred        Interest      Interest
            Certificate    Interest       Indemnification    Interest        Shortfall     Distribution
Class       Interest       Shortfall      Expenses           Amount          Amount        Amount
-------------------------------------------------------------------------------------------------------
<S>         <C>            <C>            <C>                <C>             <C>           <C>
  A-1
  A-2
  A-3
  A-AB
  A-4
  A-J
  A-X
  A-SP
    B
    C
    D
    E
    F
    G
    H
    J
    K
    L
    M
    N
    O
    P
-------------------------------------------------------------------------------------------------------
Total
-------------------------------------------------------------------------------------------------------

<CAPTION>

            Interest                    Appraisal
            Shortfall   Interest        Reduction
Class       Amount      Distribution    Amount
-------------------------------------------------
<S> <C>     <C>         <C>             <C>
  A-1
  A-2
  A-3
  A-AB
  A-4
  A-J
  A-X
  A-SP
    B
    C
    D
    E
    F
    G
    H
    J
    K
    L
    M
    N
    O
    P
-------------------------------------------------
Total
-------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------
Copyright , Wells Fargo Bank, N.A.                                                                                    Page 4 of 18
</TABLE>

<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
---------
|       |
| WELLS |                                                                            ----------------------------------------------
| FARGO |                                                                            | For Additional Information, please contact |
|       |                    Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
---------                        Commercial Mortgage Pass-Through Certificates       |               (301) 815 -6600              |
                                                Series 2005-C1                       |   Reports Available on the World Wide Web  |
Wells Fargo Bank, N.A.                                                               |           @ www.ctslink.com/cmbs           |
Corporate Trust Services                                                             ----------------------------------------------
9062 Old Annapolis Road                                                                 Payment Date:      04/15/2005
Columbia, MD 21045-1951                                                                 Record Date:       03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                           Other Required Information

Available Distribution Amount                       0.00

Aggregate Number of Outstanding Loans                  0

Aggregate Unpaid Principal Balance of Loans         0.00

Aggregate Stated Principal Balance of Loans         0.00

Aggregate Amount of Master Servicing Fee            0.00

Aggregate Amount of Special Servicing Fee           0.00

Aggregate Amount of Trustee Fee                     0.00

Aggregate Amount of Primary Servicing Fee           0.00

Aggregate Trust Fund Expenses                       0.00

Specially Serviced Loans not Delinquent

     Number of Outstanding Loans                       0

     Aggregate Unpaid Principal Balance             0.00

Appraisal Reduction Amount

-------------------------------------------------
          Appraisal    Cumulative    Most Recent
  Loan    Reduction       ASER        App. Red.
 Number     Amount       Amount         Date
-------------------------------------------------

-------------------------------------------------
 Total
-------------------------------------------------

<TABLE>
<S>         <C>
------------------------------------------------------------------------------------------------------------------------------------
Copyright , Wells Fargo Bank, N.A.                                                                                    Page 5 of 18
</TABLE>

<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
---------
|       |
| WELLS |                                                                            ----------------------------------------------
| FARGO |                                                                            | For Additional Information, please contact |
|       |                    Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
---------                        Commercial Mortgage Pass-Through Certificates       |               (301) 815 -6600              |
                                                Series 2005-C1                       |   Reports Available on the World Wide Web  |
Wells Fargo Bank, N.A.                                                               |           @ www.ctslink.com/cmbs           |
Corporate Trust Services                                                             ----------------------------------------------
9062 Old Annapolis Road                                                                 Payment Date:      04/15/2005
Columbia, MD 21045-1951                                                                 Record Date:       03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                          Cash Reconciliation Detail

---------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                    <C>        <C>
Total Funds Collected
    Interest:
        Interest paid or advanced                                                      0.00
        Interest reductions due to Non-Recoverability
          Determinations                                                               0.00
        Interest Adjustments                                                           0.00
        Deferred Interest                                                              0.00
        Net Prepayment Interest Shortfall                                              0.00
        Net Prepayment Interest Excess                                                 0.00
        Extension Interest                                                             0.00
        Interest Reserve Withdrawal                                                    0.00
             Total Interest Collected                                                             0.00
                                                                                            ----------
    Principal:
        Scheduled Principal                                                            0.00
        Unscheduled Principal                                                          0.00
             Principal Prepayments                                                     0.00
             Collection of Principal after Maturity Date                               0.00
             Recoveries from Liquidation and Insurance
               Proceeds                                                                0.00
             Excess of Prior Principal Amounts paid                                    0.00
             Curtailments                                                              0.00
        Negative Amortization                                                          0.00
        Principal Adjustments                                                          0.00
             Total Principal Collected
                                                                                                  0.00
                                                                                            ----------
    Other:
        Prepayment Penalties/Yield Maintenance                                         0.00
        Repayment Fees                                                                 0.00
        Borrower Option Extension Fees                                                 0.00
        Equity Payments Received                                                       0.00
        Net Swap Counterparty Payments Received                                        0.00
                                                                                            ----------
             Total Other Collected                                                                0.00
                                                                                            ----------
Total Funds Collected                                                                             0.00
                                                                                            ==========

Total Funds Distributed

    Fees:
        Master Servicing Fee                                                           0.00
        Trustee Fee                                                                    0.00
        Certificate Administration Fee                                                 0.00
        Insurer Fee                                                                    0.00
        Miscellaneous Fee                                                              0.00
             Total Fees                                                                           0.00
                                                                                            ----------
    Additional Trust Fund Expenses:
        Reimbursement for Interest on Advances                                         0.00
        ASER Amount                                                                    0.00
        Special Servicing Fee                                                          0.00
        Rating Agency Expenses                                                         0.00
        Attorney Fees & Expenses                                                       0.00
        Bankruptcy Expense                                                             0.00
        Taxes Imposed on Trust Fund                                                    0.00
        Non-Recoverable Advances                                                       0.00
        Other Expenses                                                                 0.00
             Total Additional Trust Fund Expenses                                                 0.00
                                                                                            ----------

    Interest Reserve Deposit                                                                      0.00
                                                                                            ----------
    Payments to Certificateholders & Others:
        Interest Distribution                                                          0.00
        Principal Distribution                                                         0.00
        Prepayment Penalties/Yield Maintenance                                         0.00
        Borrower Option Extension Fees                                                 0.00
        Equity Payments Paid                                                           0.00
        Net Swap Counterparty Payments Paid                                            0.00
                                                                                            ----------
             Total Payments to Certificateholders & Others                                        0.00
                                                                                            ----------
Total Funds Distributed                                                                           0.00
                                                                                            ==========
------------------------------------------------------------------------------------------------------------------------------------
Copyright , Wells Fargo Bank, N.A.                                                                                    Page 6 of 18
</TABLE>

<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
---------
|       |
| WELLS |                                                                            ----------------------------------------------
| FARGO |                                                                            | For Additional Information, please contact |
|       |                    Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
---------                        Commercial Mortgage Pass-Through Certificates       |               (301) 815 -6600              |
                                                Series 2005-C1                       |   Reports Available on the World Wide Web  |
Wells Fargo Bank, N.A.                                                               |           @ www.ctslink.com/cmbs           |
Corporate Trust Services                                                             ----------------------------------------------
9062 Old Annapolis Road                                                                 Payment Date:      04/15/2005
Columbia, MD 21045-1951                                                                 Record Date:       03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

                                                Ratings Detail
<CAPTION>
      ---------------------------------------------------------------------------------------------------------------
                                                   Original Ratings                       Current Ratings  (1)
                                       ------------------------------------------------------------------------------
      Class               CUSIP            Fitch       Moody's       S & P         Fitch       Moody's       S & P
      ---------------------------------------------------------------------------------------------------------------
<S>                       <C>              <C>         <C>           <C>           <C>         <C>           <C>

      A-1
      A-2
      A-3
      A-AB
      A-4
      A-J
      A-X
      A-SP
        B
        C
        D
        E
        F
        G
        H
        J
        K
        L
        M
        N
        O
        P
      ---------------------------------------------------------------------------------------------------------------

         NR - Designates that the class was not rated by the above agency at the time of original issuance.
         X  - Designates that the above rating agency did not rate any classes in this transaction at the time of original issuance.
        N/A - Data not available this period.

   1) For any class not rated at the time of original issuance by any particular rating agency, no request has been made subsequent
   to issuance to obtain rating information, if any, from such rating agency. The current ratings were obtained directly from the
   applicable rating agency within 30 days of the payment date listed above. The ratings may have changed since they were obtained.
   Because the ratings may have changed, you may want to obtain current ratings directly from the rating agencies.

<CAPTION>
<S>                                           <C>                                               <C>
Fitch, Inc.                                   Moody's Investors Service                         Standard & Poor's Rating Services
One State Street Plaza                        99 Church Street                                  55 Water Street
New York, New York 10004                      New York, New York 10007                          New York, New York 10041
(212) 908-0500                                (212) 553-0300                                    (212) 438-2430

------------------------------------------------------------------------------------------------------------------------------------
Copyright , Wells Fargo Bank, N.A.                                                                                    Page 7 of 18
</TABLE>

<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
---------
|       |
| WELLS |                                                                            ----------------------------------------------
| FARGO |                                                                            | For Additional Information, please contact |
|       |                    Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
---------                        Commercial Mortgage Pass-Through Certificates       |               (301) 815 -6600              |
                                                Series 2005-C1                       |   Reports Available on the World Wide Web  |
Wells Fargo Bank, N.A.                                                               |           @ www.ctslink.com/cmbs           |
Corporate Trust Services                                                             ----------------------------------------------
9062 Old Annapolis Road                                                                 Payment Date:      04/15/2005
Columbia, MD 21045-1951                                                                 Record Date:       03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

                                       Current Mortgage Loan and Property Stratification Tables

<CAPTION>
                      Scheduled Balance                                                       State (3)
----------------------------------------------------------------   ----------------------------------------------------------------
                                 % of                                                               % of
   Scheduled    # of  Scheduled   Agg.  WAM         Weighted                      # of   Scheduled   Agg.  WAM        Weighted
    Balance    Loans   Balance    Bal.  (2)  WAC  Avg DSCR (1)          State     Props   Balance    Bal.  (2)  WAC  Avg DSCR (1)
----------------------------------------------------------------   ----------------------------------------------------------------
<S>            <C>    <C>        <C>    <C>  <C>  <C>              <C>            <C>    <C>        <C>    <C>  <C>  <C>

----------------------------------------------------------------   ----------------------------------------------------------------
    Totals                                                             Totals
----------------------------------------------------------------   ----------------------------------------------------------------

See footnotes on last page of this section.

------------------------------------------------------------------------------------------------------------------------------------
Copyright , Wells Fargo Bank, N.A.                                                                                    Page 8 of 18
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

<S>                          <C>                                                     <C>
---------
|       |
| WELLS |                                                                            ----------------------------------------------
| FARGO |                                                                            | For Additional Information, please contact |
|       |                    Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
---------                        Commercial Mortgage Pass-Through Certificates       |               (301) 815 -6600              |
                                                Series 2005-C1                       |   Reports Available on the World Wide Web  |
Wells Fargo Bank, N.A.                                                               |           @ www.ctslink.com/cmbs           |
Corporate Trust Services                                                             ----------------------------------------------
9062 Old Annapolis Road                                                                 Payment Date:      04/15/2005
Columbia, MD 21045-1951                                                                 Record Date:       03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

                                      Current Mortgage Loan and Property Stratification Tables

<CAPTION>
               Debt Service Coverage Ratio (1)                                            Property Type (3)
----------------------------------------------------------------   ----------------------------------------------------------------
 Debt Service                    % of                                                               % of
   Coverage     # of  Scheduled   Agg.  WAM  WAC    Weighted          Property    # of   Scheduled   Agg.  WAM  WAC   Weighted
     Ratio     Loans   Balance    Bal.  (2)       Avg DSCR (1)          Type      Props   Balance    Bal.  (2)       Avg DSCR (1)
----------------------------------------------------------------   ----------------------------------------------------------------
<S>            <C>    <C>        <C>    <C>  <C>  <C>              <C>            <C>    <C>        <C>    <C>  <C>  <C>

----------------------------------------------------------------   ----------------------------------------------------------------
    Totals                                                             Totals
----------------------------------------------------------------   ----------------------------------------------------------------

<CAPTION>
                         Note Rate                                                           Seasoning
----------------------------------------------------------------   ----------------------------------------------------------------
                                 % of                                                               % of
     Note       # of  Scheduled   Agg.  WAM  WAC    Weighted                     # of   Scheduled   Agg.  WAM  WAC   Weighted
     Rate      Loans   Balance    Bal.  (2)       Avg DSCR (1)       Seasoning   Loans   Balance    Bal.  (2)       Avg DSCR (1)
----------------------------------------------------------------   ----------------------------------------------------------------
<S>            <C>    <C>        <C>    <C>  <C>  <C>              <C>            <C>    <C>        <C>    <C>  <C>  <C>

----------------------------------------------------------------   ----------------------------------------------------------------
    Totals                                                             Totals
----------------------------------------------------------------   ----------------------------------------------------------------

See footnotes on last page of this section.

-----------------------------------------------------------------------------------------------------------------------------------
Copyright , Wells Fargo Bank, N.A.                                                                                    Page 9 of 18
</TABLE>

<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
       ---------                                                                     ----------------------------------------------
       |[WELLS |                                                                     | For Additional Information, please contact |
       | FARGO |             Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
       | LOGO] |                Commercial Mortgage Pass-Through Certificates        |               (301) 815-6600               |
       ---------                                Series 2005-C1                       |  Reports Available on the World Wide Web   |
                                                                                     |           @ www.ctslink.com/cmbs           |
Wells Fargo Bank, N.A.                                                               ----------------------------------------------
Corporate Trust Services
9062 Old Annapolis Road                                                                        Payment Date:     04/15/2005
Columbia, MD 21045-1951                                                                        Record Date:      03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------
<CAPTION>

                           Current Mortgage Loan and Property Stratification Tables

       Anticipated Remaining Term (ARD and Balloon Loans)                   Remaining Stated Term (Fully Amortizing Loans)
----------------------------------------------------------------   ----------------------------------------------------------------
 Anticipated                     % of                                 Remaining                     % of
  Remaining     # of  Scheduled   Agg.  WAM  WAC    Weighted           Stated     # of   Scheduled   Agg.  WAM  WAC   Weighted
   Term (2)    Loans   Balance    Bal.  (2)       Avg DSCR (1)          Term      Loans   Balance    Bal.  (2)       Avg DSCR (1)
----------------------------------------------------------------   ----------------------------------------------------------------
<S>            <C>    <C>        <C>    <C>  <C>  <C>              <C>            <C>    <C>        <C>    <C>  <C>  <C>

----------------------------------------------------------------   ----------------------------------------------------------------
    Totals                                                             Totals
----------------------------------------------------------------   ----------------------------------------------------------------

<CAPTION>
      Remaining Amortization Term (ARD and Balloon Loans)                              Age of Most Recent NOI
----------------------------------------------------------------   ----------------------------------------------------------------
   Remaining                     % of                                                               % of
 Amortization  # of  Scheduled   Agg.  WAM  WAC    Weighted          Age of Most  # of   Scheduled   Agg.  WAM  WAC   Weighted
     Term      Loans   Balance    Bal.  (2)       Avg DSCR (1)        Recent NOI  Loans   Balance    Bal.  (2)       Avg DSCR (1)
----------------------------------------------------------------   ----------------------------------------------------------------
<S>            <C>    <C>        <C>    <C>  <C>  <C>              <C>            <C>    <C>        <C>    <C>  <C>  <C>

----------------------------------------------------------------   ----------------------------------------------------------------
    Totals                                                             Totals
----------------------------------------------------------------   ----------------------------------------------------------------

(1) Debt Service Coverage Ratios are updated periodically as new NOI figures become available from borrowers on an asset
level. In all cases the most current DSCR provided by the Servicer is used. To the extent that no DSCR is provided by the
Servicer, information from the offering document is used. The Trustee makes no representations as to the accuracy of
the data provided by the borrower for this calculation.

(2) Anticipated Remaining Term and WAM are each calculated based upon the term from the current month to the earlier of the
Anticipated Repayment Date, if applicable, and the Maturity Date.

(3) Data in this table was calculated by allocating pro-rata the current loan information to the properties based upon the
Cut-off Date balance of each property as disclosed in the offering document.

-----------------------------------------------------------------------------------------------------------------------------------
Copyright, Wells Fargo Bank, N.A.                                                                                    Page 10 of 18
</TABLE>
<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
       ---------                                                                     ----------------------------------------------
       |[WELLS |                                                                     | For Additional Information, please contact |
       | FARGO |             Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
       | LOGO] |                Commercial Mortgage Pass-Through Certificates        |               (301) 815-6600               |
       ---------                                Series 2005-C1                       |  Reports Available on the World Wide Web   |
                                                                                     |           @ www.ctslink.com/cmbs           |
Wells Fargo Bank, N.A.                                                               ----------------------------------------------
Corporate Trust Services
9062 Old Annapolis Road                                                                        Payment Date:     04/15/2005
Columbia, MD 21045-1951                                                                        Record Date:      03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

                                             Mortgage Loan Detail
<CAPTION>
---------------------------------------------------------------------------------------------------------------------------
                                                                Anticipated              Neg.   Beginning   Ending    Paid
Loan          Property               Interest Principal  Gross  Repayment    Maturity   Amort   Scheduled  Scheduled  Thru
Number  ODCR  Type (1)  City  State  Payment  Payment   Coupon      Date        Date    (Y/N)   Balance    Balance    Date
---------------------------------------------------------------------------------------------------------------------------
<S>     <C>   <C>       <C>   <C>    <C>      <C>       <C>     <C>          <C>        <C>     <C>        <C>        <C>

---------------------------------------------------------------------------------------------------------------------------
Totals
---------------------------------------------------------------------------------------------------------------------------

<CAPTION>
---------------------------------------------
         Appraisal  Appraisal   Res.    Mod.
Loan     Reduction  Reduction  Strat.  Code
Number     Date      Amount     (2)     (3)
---------------------------------------------
<S>      <C>        <C>        <C>     <C>

---------------------------------------------
Totals
---------------------------------------------

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

                             (1) Property Type Code
                             ----------------------

                  MF -  Multi-Family            OF - Office
                  RT -  Retail                  MU - Mixed Use
                  HC -  Health Care             LO - Lodging
                  IN -  Industrial              SS - Self Storage
                  WH -  Warehouse               OT - Other
                  MH -  Mobile Home Park

                          (2) Resolution Strategy Code
                          ----------------------------

1 - Modification        6 - DPO                       10 - Deed in Lieu Of
2 - Foreclosure         7 - REO                            Foreclosure
3 - Bankruptcy          8 - Resolved                  11 - Full Payoff
4 - Extension           9 - Pending Return            12 - Reps and Warranties
5 - Note Sale               to Master Servicer        13 - Other or TBD

                             (3) Modification Code
                             ---------------------

                        1 - Maturity Date Extension
                        2 - Amortization Change
                        3 - Principal Write-Off
                        4 - Combination
--------------------------------------------------------------------------------

-----------------------------------------------------------------------------------------------------------------------------------
Copyright, Wells Fargo Bank, N.A.                                                                                    Page 11 of 18
</TABLE>
<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
       ---------                                                                     ----------------------------------------------
       |[WELLS |                                                                     | For Additional Information, please contact |
       | FARGO |             Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
       | LOGO] |                Commercial Mortgage Pass-Through Certificates        |               (301) 815-6600               |
       ---------                                Series 2005-C1                       |  Reports Available on the World Wide Web   |
                                                                                     |           @ www.ctslink.com/cmbs           |
Wells Fargo Bank, N.A.                                                               ----------------------------------------------
Corporate Trust Services
9062 Old Annapolis Road                                                                        Payment Date:     04/15/2005
Columbia, MD 21045-1951                                                                        Record Date:      03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

                                          Principal Prepayment Detail
<CAPTION>
------------------------------------------------------------------------------------------------------------------------------------
                                                Principal Prepayment Amount                  Prepayment Premium
                  Offering Document       ------------------------------------------------------------------------------------------
Loan Number       Cross-Reference         Payoff Amount     Curtailment Amount    Percentage Premium    Yield Maintenance Charge
------------------------------------------------------------------------------------------------------------------------------------
<S>               <C>                     <C>               <C>                   <C>                   <C>

------------------------------------------------------------------------------------------------------------------------------------
Totals
------------------------------------------------------------------------------------------------------------------------------------

-----------------------------------------------------------------------------------------------------------------------------------
Copyright, Wells Fargo Bank, N.A.                                                                                    Page 12 of 18
</TABLE>
<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
       ---------                                                                     ----------------------------------------------
       |[WELLS |                                                                     | For Additional Information, please contact |
       | FARGO |             Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
       | LOGO] |                Commercial Mortgage Pass-Through Certificates        |               (301) 815-6600               |
       ---------                                Series 2005-C1                       |  Reports Available on the World Wide Web   |
                                                                                     |           @ www.ctslink.com/cmbs           |
Wells Fargo Bank, N.A.                                                               ----------------------------------------------
Corporate Trust Services
9062 Old Annapolis Road                                                                        Payment Date:     04/15/2005
Columbia, MD 21045-1951                                                                        Record Date:      03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

                                               Historical Detail
<CAPTION>
------------------------------------------------------------------------------------------------------------------------------------

                                           Delinquencies
-------------------------------------------------------------------------------------------------
Distribution  30-59 Days   60-89 Days   90 Days or More   Foreclosure       REO     Modifications
Date          #  Balance   #  Balance   #       Balance   #   Balance   # Balance   #     Balance
-------------------------------------------------------------------------------------------------
<S>           <C>          <C>          <C>               <C>           <C>         <C>

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

<CAPTION>

                        Prepayments                 Rate and Maturities
--------------------------------------------------------------------------------------
Distribution  Curtailments        Payoff        Next Weighted Avg.
Date          #    Balance      #  Balance      Coupon      Remit     WAM
--------------------------------------------------------------------------------------
<S>           <C>               <C>             <C>         <C>       <C>

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

Note: Foreclosure and REO Totals are excluded from the delinquencies aging categories.

-----------------------------------------------------------------------------------------------------------------------------------
Copyright, Wells Fargo Bank, N.A.                                                                                    Page 13 of 18
</TABLE>
<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
       ---------                                                                     ----------------------------------------------
       |[WELLS |                                                                     | For Additional Information, please contact |
       | FARGO |             Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
       | LOGO] |                Commercial Mortgage Pass-Through Certificates        |               (301) 815-6600               |
       ---------                                Series 2005-C1                       |  Reports Available on the World Wide Web   |
                                                                                     |           @ www.ctslink.com/cmbs           |
Wells Fargo Bank, N.A.                                                               ----------------------------------------------
Corporate Trust Services
9062 Old Annapolis Road                                                                        Payment Date:     04/15/2005
Columbia, MD 21045-1951                                                                        Record Date:      03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

                                            Delinquency Loan Detail
<CAPTION>
-----------------------------------------------------------------------------------------------------------------------------------
                 Offering      # of                   Current   Outstanding   Status of   Resolution
                 Document      Months   Paid Through   P & I       P & I       Mortgage    Strategy     Servicing      Foreclosure
Loan Number   Cross-Reference  Delinq.      Date      Advances   Advances      Loan (1)     Code (2)   Transfer Date      Date
-----------------------------------------------------------------------------------------------------------------------------------
<S>           <C>              <C>      <C>           <C>       <C>           <C>         <C>          <C>             <C>

-----------------------------------------------------------------------------------------------------------------------------------
Totals
-----------------------------------------------------------------------------------------------------------------------------------

<CAPTION>

--------------------------------------------------------------
               Actual      Outstanding
              Principal     Servicing       Bankruptcy     REO
Loan Number    Balance      Advances          Date        Date
--------------------------------------------------------------
<S>           <C>          <C>             <C>            <C>

--------------------------------------------------------------
Totals
--------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
-------------------------------------------------------------------------------------------------------
                                      (1) Status of Mortgage Loan
                                      ---------------------------
<S>                             <C>                                  <C>
A - Payment Not Received        0 - Current                          4 - Assumed Scheduled Payment
    But Still in Grace Period   1 - One Month Delinquent                 (Performing Matured Balloon)
B - Late Payment But Less       2 - Two Months Delinquent            7 - Foreclosure
    Than 1 Month Delinquent     3 - Three or More Months Delinquent  9 - REO

<CAPTION>
                                     (2) Resolution Strategy Code
                                     ----------------------------
<S>                             <C>                                  <C>
1 - Modification                6 - DPO                              10 - Deed In Lieu Of
2 - Foreclosure                 7 - REO                                   Foreclosure
3 - Bankruptcy                  8 - Resolved                         11 - Full Payoff
4 - Extension                   9 - Pending Return                   12 - Reps and Warranties
5 - Note Sale                       to Master Servicer               13 - Other or TBD

**Outstanding P & I Advances include the current period advance.
-------------------------------------------------------------------------------------------------------

-----------------------------------------------------------------------------------------------------------------------------------
Copyright, Wells Fargo Bank, N.A.                                                                                    Page 14 of 18
</TABLE>
<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
       ---------                                                                     ----------------------------------------------
       |[WELLS |                                                                     | For Additional Information, please contact |
       | FARGO |             Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
       | LOGO] |                Commercial Mortgage Pass-Through Certificates        |               (301) 815-6600               |
       ---------                                Series 2005-C1                       |  Reports Available on the World Wide Web   |
                                                                                     |           @ www.ctslink.com/cmbs           |
Wells Fargo Bank, N.A.                                                               ----------------------------------------------
Corporate Trust Services
9062 Old Annapolis Road                                                                        Payment Date:     04/15/2005
Columbia, MD 21045-1951                                                                        Record Date:      03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

                                     Specially Serviced Loan Detail - Part 1
<CAPTION>
------------------------------------------------------------------------------------------------------------------------------------
            Offering      Servicing    Resolution                                                         Net
Loan        Document      Transfer      Strategy    Scheduled   Property          Interest    Actual   Operating    DSCR
Number   Cross-Reference    Date         Code (1)    Balance    Type (2)   State    Rate     Balance     Income     Date    DSCR
------------------------------------------------------------------------------------------------------------------------------------
<S>      <C>              <C>          <C>          <C>         <C>        <C>    <C>        <C>       <C>          <C>     <C>

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

<CAPTION>

-----------------------------------------
                             Remaining
Loan     Note    Maturity   Amortization
Number   Date      Date         Term
-----------------------------------------
<S>      <C>     <C>        <C>

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

<CAPTION>
                                 (1) Resolution Strategy Code
                                 ----------------------------
<C>                             <C>                                  <C>
1 - Modification                6 - DPO                              10 - Deed in Lieu Of
2 - Foreclosure                 7 - REO                                   Foreclosure
3 - Bankruptcy                  8 - Resolved                         11 - Full Payoff
4 - Extension                   9 - Pending Return                   12 - Reps and Warranties
5 - Note Sale                       to Master Servicer               13 - Other or TBD

<CAPTION>

             (2) Property Type Code
             ----------------------
<S>                             <C>
MF - Multi-Family               OF - Office
RT - Retail                     MU - Mixed Use
HC - Health Care                LO - Lodging
IN - Industrial                 SS - Self Storage
WH - Warehouse                  OT - Other
MH - Mobile Home Park

-----------------------------------------------------------------------------------------------------------------------------------
Copyright, Wells Fargo Bank, N.A.                                                                                    Page 15 of 18
</TABLE>
<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
       ---------                                                                     ----------------------------------------------
       |[WELLS |                                                                     | For Additional Information, please contact |
       | FARGO |             Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
       | LOGO] |                Commercial Mortgage Pass-Through Certificates        |               (301) 815-6600               |
       ---------                                Series 2005-C1                       |  Reports Available on the World Wide Web   |
                                                                                     |           @ www.ctslink.com/cmbs           |
Wells Fargo Bank, N.A.                                                               ----------------------------------------------
Corporate Trust Services
9062 Old Annapolis Road                                                                        Payment Date:     04/15/2005
Columbia, MD 21045-1951                                                                        Record Date:      03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

                                      Specially Serviced Loan Detail - Part 2
<CAPTION>
---------------------------------------------------------------------------------------------------------------------

            Offering       Resolution      Site
Loan        Document        Strategy    Inspection                 Appraisal   Appraisal      Other REO
Number   Cross-Reference    Code (1)       Date     Phase 1 Date     Date        Value     Property Revenue   Comment
---------------------------------------------------------------------------------------------------------------------
<S>      <C>               <C>          <C>         <C>            <C>         <C>         <C>                <C>

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

<CAPTION>
                                     (1) Resolution Strategy Code
                                     ----------------------------

<S>                             <C>                                  <C>
1 - Modification                6 - DPO                              10 - Deed in Lieu Of
2 - Foreclosure                 7 - REO                                   Foreclosure
3 - Bankruptcy                  8 - Resolved                         11 - Full Payoff
4 - Extension                   9 - Pending Return                   12 - Reps and Warranties
5 - Note Sale                       to Master Servicer               13 - Other or TBD

-----------------------------------------------------------------------------------------------------------------------------------
Copyright, Wells Fargo Bank, N.A.                                                                                    Page 16 of 18
</TABLE>
<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
       ---------                                                                     ----------------------------------------------
       |[WELLS |                                                                     | For Additional Information, please contact |
       | FARGO |             Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
       | LOGO] |                Commercial Mortgage Pass-Through Certificates        |               (301) 815-6600               |
       ---------                                Series 2005-C1                       |  Reports Available on the World Wide Web   |
                                                                                     |           @ www.ctslink.com/cmbs           |
Wells Fargo Bank, N.A.                                                               ----------------------------------------------
Corporate Trust Services
9062 Old Annapolis Road                                                                        Payment Date:     04/15/2005
Columbia, MD 21045-1951                                                                        Record Date:      03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

                                             Modified Loan Detail
<CAPTION>
-----------------------------------------------------------------------------------------------------------------------------------
                Offering
Loan            Document        Pre-Modification
Number      Cross-Reference         Balance                 Modification Date                       Modification Description
-----------------------------------------------------------------------------------------------------------------------------------
<S>         <C>                 <C>                         <C>                                     <C>

-----------------------------------------------------------------------------------------------------------------------------------
Totals
-----------------------------------------------------------------------------------------------------------------------------------

-----------------------------------------------------------------------------------------------------------------------------------
Copyright, Wells Fargo Bank, N.A.                                                                                    Page 17 of 18
</TABLE>
<PAGE>

<TABLE>
<S>                          <C>                                                     <C>
       ---------                                                                     ----------------------------------------------
       |[WELLS |                                                                     | For Additional Information, please contact |
       | FARGO |             Credit Suisse First Boston Mortgage Securities Corp.    |          CTSLink Customer Service          |
       | LOGO] |                Commercial Mortgage Pass-Through Certificates        |               (301) 815-6600               |
       ---------                                Series 2005-C1                       |  Reports Available on the World Wide Web   |
                                                                                     |           @ www.ctslink.com/cmbs           |
Wells Fargo Bank, N.A.                                                               ----------------------------------------------
Corporate Trust Services
9062 Old Annapolis Road                                                                        Payment Date:     04/15/2005
Columbia, MD 21045-1951                                                                        Record Date:      03/31/2005
-----------------------------------------------------------------------------------------------------------------------------------

                                             Liquidated Loan Detail
<CAPTION>
-----------------------------------------------------------------------------------------------------------------------------------
                   Final Recovery        Offering                                                    Gross Proceeds      Aggregate
Loan                Determination        Document      Appraisal    Appraisal   Actual     Gross       as a % of        Liquidation
Number                  Date         Cross-Reference      Date        Value     Balance   Proceeds   Actual Balance      Expenses *
-----------------------------------------------------------------------------------------------------------------------------------
<S>                <C>              <C>              <C>          <C>         <C>       <C>        <C>                <C>

-----------------------------------------------------------------------------------------------------------------------------------
Current Total
-----------------------------------------------------------------------------------------------------------------------------------
Cumulative Total
-----------------------------------------------------------------------------------------------------------------------------------

<CAPTION>

--------------------------------------------------------------------------------
                       Net           Net Proceeds                    Repurchased
Loan               Liquidation        as a % of         Realized      by Seller
Number               Proceeds       Actual Balance        Loss          (Y/N)
--------------------------------------------------------------------------------
<S>                <C>              <C>                 <C>          <C>

--------------------------------------------------------------------------------
Current Total
--------------------------------------------------------------------------------
Cumulative Total
--------------------------------------------------------------------------------

* Aggregate liquidation expenses also include outstanding P & I advances and unpaid fees (servicing, trustee, etc.).

-----------------------------------------------------------------------------------------------------------------------------------
Copyright, Wells Fargo Bank, N.A.                                                                                    Page 18 of 18
</TABLE>

<PAGE>

                                  EXHIBIT F-1A

                        FORM I OF TRANSFEROR CERTIFICATE
                  FOR TRANSFERS OF NON-REGISTERED CERTIFICATES

                                     [Date]

Wells Fargo Bank, N.A.
Sixth Street and Marquette Avenue,
Minneapolis, Minnesota  55479-0113
Attention:  Credit Suisse First Boston Mortgage Securities Corp., Commercial
Mortgage Pass-Through Certificates, Series 2005-C1

[OR OTHER CERTIFICATE REGISTRAR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2005-C1,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of March
                  17, 2005 (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 March 1, 2005 (the "Pooling and Servicing
Agreement"), among Credit Suisse First Boston Mortgage Securities Corp., as
depositor, GMAC Commercial Mortgage Corporation., as master servicer (in such
capacity, the "Master Servicer"), Lennar Partners, Inc., as special servicer (in
such capacity, the "Special Servicer"), and Wells Fargo Bank, N.A., as trustee
(in such capacity, 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]

Wells Fargo Bank, N.A.
Sixth Street and Marquette Avenue,
Minneapolis, Minnesota  55479-0113
Attention:  Credit Suisse First Boston Mortgage Securities Corp., Commercial
Mortgage Pass-Through Certificates, Series 2005-C1

[OR OTHER CERTIFICATE REGISTRAR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2005-C1,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of March
                  17, 2005 (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 March 1, 2005 (the "Pooling and Servicing
Agreement"), among Credit Suisse First Boston Mortgage Securities Corp., as
depositor, GMAC Commercial Mortgage Corporation, as master servicer (in such
capacity, the "Master Servicer"), Lennar Partners, Inc., as special servicer (in
such capacity, the "Special Servicer") and Wells Fargo Bank, N.A., as trustee
(in such capacity, 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
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]

Wells Fargo Bank, N.A.
Sixth Street and Marquette Avenue,
Minneapolis, Minnesota  55479-0113
Attention:  Credit Suisse First Boston Mortgage Securities Corp., Commercial
Mortgage Pass-Through Certificates, Series 2005-C1

[OR OTHER CERTIFICATE REGISTRAR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2005-C1,
                  Class ____, having an initial aggregate [Certificate Principal
                  Balance] [Certificate Notional Amount] as of March 17, 2005
                  (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 March 1, 2005 (the "Pooling and Servicing Agreement"), among Credit Suisse
First Boston Mortgage Securities Corp., as depositor, GMAC Commercial Mortgage
Corporation, as master servicer (in such capacity, the "Master Servicer"),
Lennar Partners, Inc., as special servicer (in such capacity, the "Special
Servicer"), and Wells Fargo Bank, N.A., as trustee (in such capacity, 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 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]

Wells Fargo Bank, N.A.
Sixth Street and Marquette Avenue,
Minneapolis, Minnesota  55479-0113
Attention:  Credit Suisse First Boston Mortgage Securities Corp., Commercial
Mortgage Pass-Through Certificates, Series 2005-C1

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2005-C1,
                  Class ____, having an initial aggregate [Certificate Principal
                  Balance] [Certificate Notional Amount] as of March 17, 2005
                  (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 March 1, 2005 (the "Pooling and Servicing Agreement"), among Credit Suisse
First Boston Mortgage Securities Corp., as depositor, GMAC Commercial Mortgage
Corporation, as master servicer (in such capacity, the "Master Servicer"),
Lennar Partners, Inc., as special servicer (in such capacity, the "Special
Servicer"), and Wells Fargo Bank, N.A., as trustee (in such capacity, 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 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]

Wells Fargo Bank, N.A.
Sixth Street and Marquette Avenue,
Minneapolis, Minnesota  55479-0113
Attention:  Credit Suisse First Boston Mortgage Securities Corp., Commercial
Mortgage Pass-Through Certificates, Series 2005-C1

[OR OTHER CERTIFICATE REGISTRAR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2005-C1,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of March
                  17, 2005 (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 March 1, 2005 (the "Pooling and Servicing
Agreement"), among Credit Suisse First Boston Mortgage Securities Corp., as
depositor, GMAC Commercial Mortgage Corporation, as master servicer (in such
capacity, the "Master Servicer"), Lennar Partners, Inc., as special servicer (in
such capacity, the "Special Servicer"), and Wells Fargo Bank, N.A., as trustee
(in such capacity, 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
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,

                                    ____________________________________________
                                    (Transferee)

                                    By: ________________________________________
                                    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>

                                                         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.

      ___   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: ______________________________________

-------------
(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.

<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]

Wells Fargo Bank, N.A.
Sixth Street and Marquette Avenue,
Minneapolis, Minnesota  55479-0113
Attention:  Credit Suisse First Boston Mortgage Securities Corp., Commercial
Mortgage Pass-Through Certificates, Series 2005-C1

[OR OTHER CERTIFICATE REGISTRAR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2005-C1,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of March
                  17, 2005 (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 March 1, 2005 (the "Pooling and
Servicing Agreement"), among Credit Suisse First Boston Mortgage Securities
Corp. as depositor, GMAC Commercial Mortgage Corporation, as master servicer (in
such capacity, the "Master Servicer"), Lennar Partners, Inc., as special
servicer (in such capacity, the "Special Servicer"), and Wells Fargo Bank, N.A.,
as trustee (in such capacity, 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 (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 2005-C1,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of March
                  17, 2005 (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 March 1, 2005 (the "Pooling and Servicing Agreement"), among Credit Suisse
First Boston Mortgage Securities Corp., as depositor, GMAC Commercial Mortgage
Corporation, as master servicer (in such capacity, the "Master Servicer"),
Lennar Partners, Inc., as special servicer (in such capacity, the "Special
Servicer"), and Wells Fargo Bank, N.A., as trustee (in such capacity, 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 Trustee 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 (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.

      ___   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
            Yes   No    the 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:

-------------
(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.

<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 2005-C1,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of March
                  17, 2005 (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 March 1, 2005 (the "Pooling and Servicing Agreement"), among Credit Suisse
First Boston Mortgage Securities Corp., as depositor, GMAC Commercial Mortgage
Corporation, as master servicer (in such capacity, the "Master Servicer"),
Lennar Partners, Inc., as special servicer (in such capacity, the "Special
Servicer"), and Wells Fargo Bank, N.A., as trustee (in such capacity, 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 Trustee 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 (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]

Wells Fargo Bank, N.A.
Sixth Street and Marquette Avenue,
Minneapolis, Minnesota  55479-0113
Attention:  Credit Suisse First Boston Mortgage Securities Corp., Commercial
Mortgage Pass-Through Certificates, Series 2005-C1

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2005-C1,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of March
                  17, 2005 (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 March 1, 2005 (the "Pooling and Servicing
Agreement"), among Credit Suisse First Boston Mortgage Securities Corp., as
depositor, GMAC Commercial Mortgage Corporation, as master servicer (in such
capacity, the "Master Servicer"), Lennar Partners, Inc., as special servicer (in
such capacity, the "Special Servicer"), and Wells Fargo Bank, N.A., as trustee
(in such capacity, 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"), 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

      ___   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.

      ___   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 First Boston 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 Depositor, any Mortgage Loan Seller, the Master
            Servicer, the Special Servicer, any Exemption-Favored Party, 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 2005-C1,
                  Class ______ Certificates [having an initial aggregate
                  Certificate [Principal Balance] [Notional Amount] as of March
                  17, 2005 (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 March 1, 2005 (the "Pooling and Servicing Agreement"), among Credit Suisse
First Boston Mortgage Securities Corp., as depositor, GMAC Commercial Mortgage
Corporation, as master servicer (in such capacity, the "Master Servicer"),
Lennar Partners, Inc., as special servicer (in such capacity, the "Special
Servicer") and Wells Fargo Bank, N.A., as trustee (in such capacity, 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"), 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;

      ___   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 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 First Boston 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 Depositor, any Mortgage Loan Seller, the Master
            Servicer, the Special Servicer, any Exemption-Favored Party, 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 AND AGREEMENT
               FOR TRANSFERS OF [CLASS R] [CLASS LR] 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 2005-C1,
[Class R] [Class LR] 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 and agreement in
substantially the same form as this affidavit and agreement. The Transferee
expressly agrees that it will not consummate any such transfer if it knows or
believes that any representation contained in such affidavit and agreement 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] [Class LR] 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 Trustee 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] [Class LR] 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] [Class LR] 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] [Class LR] 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] [Class LR] 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] [Class LR]
                  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] [Class LR] 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 or other
entity created or organized in, or under the laws of, the United States, any
State thereof or the District of Columbia, an estate whose income from sources
without the United States is includible in gross income for United States
federal income tax purposes regardless of its connection with the conduct of a
trade or business within the United States, 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.

<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] [CLASS LR] CERTIFICATES

                                     [Date]

Wells Fargo Bank, N.A.
Sixth Street and Marquette Avenue,
Minneapolis, Minnesota  55479-0113
Attention:  Credit Suisse First Boston Mortgage Securities Corp., Commercial
Mortgage Pass-Through Certificates, Series 2005-C1

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2005-C1,
                  [Class R] [Class LR] 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 March 1, 2005 (the "Pooling and Servicing Agreement"),
among Credit Suisse First Boston Mortgage Securities Corp. as depositor, GMAC
Commercial Mortgage Corporation, as master servicer (in such capacity, the
"Master Servicer"), Lennar Partners, Inc., as special servicer (in such
capacity, the "Special Servicer"), and Wells Fargo Bank, N.A., as trustee (in
such capacity, 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 and Agreement 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]
[MASTER SERVICER]
[SPECIAL SERVICER]
[DEPOSITOR]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2005-C1

Ladies and Gentlemen:

            Pursuant to Section 7.01(c) of the Pooling and Servicing Agreement,
dated as of March 1, 2005, relating to Credit Suisse First Boston Mortgage
Securities Corp., Commercial Mortgage Pass-Through Certificates, Series 2005-C1
(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 AFFIDAVIT OF LOST NOTE

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 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;

            6. 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
2005-C1 (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

                                    RESERVED

<PAGE>

                                    EXHIBIT L

                           SCHEDULE OF REFERENCE RATES

<TABLE>
<CAPTION>
   Distribution Date      Reference Rate      Distribution Date     Reference Rate
-----------------------  ----------------  ----------------------  -----------------
<S>                          <C>            <C>                        <C>
April 2005                   5.48540%       October 2008               5.31502%
May 2005                     5.32257%       November 2008              5.48616%
June 2005                    5.48525%       December 2008              5.31486%
July 2005                    5.32242%       January 2009               5.31477%
August 2005                  5.48510%       February 2009              5.31470%
September 2005               5.48503%       March 2009                 5.31521%
October 2005                 5.32221%       April 2009                 5.48575%
November 2005                5.48488%       May 2009                   5.31338%
December 2005                5.32205%       June 2009                  5.48473%
January 2006                 5.32197%       July 2009                  5.31320%
February 2006                5.32190%       August 2009                5.48429%
March 2006                   5.32013%       September 2009             5.48421%
April 2006                   5.48704%       October 2009               5.31295%
May 2006                     5.32119%       November 2009              5.48595%
June 2006                    5.48686%       December 2009              5.33091%
July 2006                    5.32102%       January 2010               5.33328%
August 2006                  5.48669%       February 2010              5.33260%
September 2006               5.48660%       March 2010                 5.34005%
October 2006                 5.32075%       April 2010                 5.50841%
November 2006                5.48748%       May 2010                   5.33860%
December 2006                5.32056%       June 2010                  5.51663%
January 2007                 5.32047%       July 2010                  5.33875%
February 2007                5.32039%       August 2010                5.51674%
March 2007                   5.32073%       September 2010             5.51672%
April 2007                   5.48703%       October 2010               5.33861%
May 2007                     5.32013%       November 2010              5.51668%
June 2007                    5.48686%       December 2010              5.33850%
July 2007                    5.31997%       January 2011               5.33844%
August 2007                  5.48670%       February 2011              5.34013%
September 2007               5.48662%       March 2011                 5.34082%
October 2007                 5.31972%       April 2011                 5.51993%
November 2007                5.48901%       May 2011                   5.34151%
December 2007                5.31766%       June 2011                  5.51726%
January 2008                 5.48885%       July 2011                  5.33891%
February 2008                5.31750%       August 2011                5.51858%
March 2008                   5.31602%       September 2011             5.51850%
April 2008                   5.48669%       October 2011               5.34037%
May 2008                     5.31541%       November 2011              5.51858%
June 2008                    5.48654%       December 2011              5.34051%
July 2008                    5.31525%       January 2012               5.55143%
August 2008                  5.48639%       February 2012              5.38373%
September 2008               5.48632%       March 2012                 5.38523%
</TABLE>

<PAGE>

                                 EXHIBIT M-1

                  FORM OF TRUSTEE CERTIFICATION TO DEPOSITOR

            Re:   Credit Suisse First Boston Commercial Mortgage Trust 2005-C1
                  (the "Trust"), Commercial Mortgage Pass-Through Certificates,
                  Series 2005-C1

            I, [identify the certifying individual], a[n] [title] of [identify
name of company] on behalf of [identify name of company], as Trustee, certify to
[identify the individual signing the Sarbanes-Oxley Certification], Credit
Suisse First Boston Mortgage Securities Corp. (the "Depositor") and its
partners, representatives, affiliates, members, managers, directors, officers,
employees and agents, to the extent that the following information is within our
normal area of responsibilities and duties under the pooling and servicing
agreement dated as of March 1, 2005 and relating to the captioned commercial
mortgage pass-through certificates (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 [___] (the "Annual Report"), and all reports on Form 8-K containing
      statements to certificateholders under the Pooling and Servicing Agreement
      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. To my knowledge, the information in the Reports, to the extent
      prepared by the Trustee (and not including any information provided to the
      Trustee by the Master Servicer or the Special Servicer, other than to the
      extent that such information has been aggregated or manipulated by
      Trustee), 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 covered by the
      Annual Report; and

            3. To my knowledge, the distribution information provided by the
      Trustee under the Pooling and Servicing Agreement for inclusion in the
      Reports is included in the Reports.

            Capitalized terms used but not defined herein have the respective
meanings set forth in the Pooling and Servicing Agreement.

Date: _________________________

[NAME OF COMPANY]

_______________________________
[Signature]
[Title]

<PAGE>

                                   EXHIBIT M-2

                      FORM OF MASTER SERVICER CERTIFICATION

            Re:   Credit Suisse First Boston Commercial Mortgage Trust 2005-C1
                  (the "Trust"), Commercial Mortgage Pass-Through Certificates,
                  Series 2005-C1

            I, [identify the certifying individual], a[n] [title] of [identify
name of company] on behalf of [identify name of company], as Master Servicer,
certify to [identify the individual signing the Sarbanes-Oxley Certification],
Credit Suisse First Boston Mortgage Securities Corp. (the "Depositor") and its
partners, representatives, affiliates, members, managers, directors, officers,
employees and agents, to the extent that the following information is within our
normal area of responsibilities and duties under the pooling and servicing
agreement dated as of March 1, 2005 and relating to the captioned commercial
mortgage pass-through certificates (the "Pooling and Servicing Agreement"), and
with the knowledge and intent that they will rely upon this certification, that:

            1. I have reviewed the reports delivered by the Master Servicer to
      the Trustee under the Pooling and Servicing Agreement (the "Servicing
      Reports") during the year ending [__________] (the "Relevant Period").

            2. Based on my knowledge, the information contained in the Servicing
      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 they were made,
      not misleading as of the last day of the Relevant Period.

            3. Based on my knowledge, the information required to be provided to
      the Trustee by the Master Servicer under the Pooling and Servicing
      Agreement for inclusion in the reports to be filed by the Trustee is
      included in the Servicing Reports delivered by the Master Servicer to the
      Trustee.

            4. I am responsible for reviewing the activities performed by the
      Master Servicer under the Pooling and Servicing Agreement and based upon
      my knowledge and the review required under the Pooling and Servicing
      Agreement with respect to the Master Servicer, and except as disclosed in
      the annual compliance review required under Section 3.13 of the Pooling
      and Servicing Agreement, the Master Servicer has fulfilled its obligations
      as Master Servicer under the Pooling and Servicing Agreement in all
      material respects during the Relevant Period.

            5. The accountants statement delivered pursuant to Section 3.14 of
      the Pooling and Servicing Agreement discloses all significant deficiencies
      relating to the compliance of GMACCM as Master Servicer with the minimum
      servicing standards based upon the report provided by an independent
      public accountant, after conducting a review in compliance with the
      Uniform Single Attestation Program for Mortgage Bankers or similar
      standard as set forth in the Pooling and Servicing Agreement.

            Capitalized terms used but not defined herein have the respective
meanings set forth in the Pooling and Servicing Agreement.

Date: _________________________

[NAME OF COMPANY]

_______________________________
[Signature]
[Title]

<PAGE>

                                   EXHIBIT M-3

                     FORM OF SPECIAL SERVICER CERTIFICATION

            Re:   Credit Suisse First Boston Commercial Mortgage Trust 2005-C1
                  (the "Trust"), Commercial Mortgage Pass-Through Certificates,
                  Series 2005-C1

            I, [identify the certifying individual], a[n] [title] of [identify
name of company], on behalf of [identify name of company] as Special Servicer
certify to [identify the Certifying Person], [________________________________],
as Master Servicer (the "Master Servicer"), Credit Suisse First Boston Mortgage
Securities Corp. ("Depositor") and their respective partners, representatives,
affiliates, members, managers, directors, officers, employees and agents and
with the knowledge and intent that they will rely upon this certification:

            1. I am responsible for reviewing the activities performed by Lennar
      Partners, Inc. ("Lennar") as special servicer (the "Special Servicer")
      under the Pooling and Servicing Agreement dated as of March 1, 2005 and
      relating to the captioned commercial mortgage pass-through certificates
      (the "Pooling and Servicing Agreement"), and based upon my knowledge and
      the annual compliance review performed as required under the Pooling and
      Servicing Agreement, and except as disclosed on Schedule 1 hereto, Lennar,
      to my knowledge, has fulfilled its material obligations as Special
      Servicer under the Pooling and Servicing Agreement, including the
      provision of all information and/or reports required to be submitted by
      Lennar, as Special Servicer, to the Master Servicer and the Trustee
      thereunder, and that, to the knowledge of Lennar, as Special Servicer,
      such reports do not contain any material misstatements or omissions; and

            2. I have disclosed to Lennar's certified public accountants and
      [________________]'s certified public accountants all significant
      deficiencies, to my knowledge, relating to the compliance of Lennar as
      Special Servicer with the minimum servicing standards in accordance with a
      review conducted in compliance with the Uniform Single Attestation Program
      for Mortgage Bankers or similar standard as set forth in the Pooling and
      Servicing Agreement.

Date: _________________________

[NAME OF COMPANY]

_______________________________
[Signature]
[Title]

<PAGE>

                                    EXHIBIT N

                      SCHEDULE OF DESIGNATED SUB SERVICERS

                              Laureate Capital LLC
                          Capstone Realty Advisors, LLC

<PAGE>

                                    EXHIBIT O

                         FORM OF CUSTODIAL CERTIFICATION

                                     [Date]

[DEPOSITOR]

[MASTER SERVICER]             MORTGAGE LOAN SELLERS

[SPECIAL SERVICER]

            Re:   Credit Suisse First Boston Mortgage Securities Corp.,
                  Commercial Mortgage Pass-Through Certificates, Series 2005-C1

Ladies and Gentlemen:

            Pursuant to Section 2.02(b) of the Pooling and Servicing Agreement
dated as of March 1, 2005 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 Servicer, the Special Servicer, 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

                         TRUST MORTGAGE LOANS COVERED BY
                         ENVIRONMENTAL INSURANCE POLICY

<TABLE>
<CAPTION>

                                                   Environmental  Insurance                                     Cut-Off Date
Mortgage Loan #  Property Name                     Carrier                       Mortgage Loan Seller           Principal Balance
-----------------------------------------------------------------------------------------------------------------------------------
<S>              <C>                               <C>                           <C>                            <C>
129              Villa Rosa                        Steadfast Insurance Co.       Column Financial, Inc.         $3,488,113
-----------------------------------------------------------------------------------------------------------------------------------
36               CT Storage Portfolio              Zurich                        Column Financial, Inc.         $3,239,575
-----------------------------------------------------------------------------------------------------------------------------------
83               Orchard Square Apartments         AIG                           Column Financial, Inc.         $2,467,436
-----------------------------------------------------------------------------------------------------------------------------------
                 Madison County Self Storage -
75b              Ridgeland                         Zurich                        Column Financial, Inc.         $2,193,416
-----------------------------------------------------------------------------------------------------------------------------------
71               Lee's Drilling Self Storage       Steadfast Insurance Co.       Column Financial, Inc.         $2,074,151
-----------------------------------------------------------------------------------------------------------------------------------
48               Fig Leaf Plaza                    Steadfast Insurance Co.       Column Financial, Inc.         $2,055,987
-----------------------------------------------------------------------------------------------------------------------------------
111              Southland Plaza                   Steadfast Insurance Co.       Column Financial, Inc.         $1,995,415
-----------------------------------------------------------------------------------------------------------------------------------
40               Duane Heights Apartments          Zurich                        Column Financial, Inc.         $1,993,615
-----------------------------------------------------------------------------------------------------------------------------------
                 GEM City Manufactured Housing
50               Community                         Steadfast Insurance Co.       Column Financial, Inc.         $1,991,270
-----------------------------------------------------------------------------------------------------------------------------------
30e              Parkway Apartments                Steadfast Insurance Co.       Column Financial, Inc.         $1,983,587
-----------------------------------------------------------------------------------------------------------------------------------
81               Montgomery Plaza Apartments       Steadfast Insurance Co.       Column Financial, Inc.         $1,932,798
-----------------------------------------------------------------------------------------------------------------------------------
                 Madison County Self Storage -
75a              Gluckstadt                        Zurich                        Column Financial, Inc.         $1,894,314
-----------------------------------------------------------------------------------------------------------------------------------
54               Handi Self Storage                Steadfast Insurance Co.       Column Financial, Inc.         $1,864,018
-----------------------------------------------------------------------------------------------------------------------------------
41               Eden Rock Apartments              Steadfast Insurance Co.       Column Financial, Inc.         $1,854,140
-----------------------------------------------------------------------------------------------------------------------------------
70               Laguna Canyon                     Steadfast Insurance Co.       Column Financial, Inc.         $1,794,329
-----------------------------------------------------------------------------------------------------------------------------------
121              Townhomes Mobile Home Park        Steadfast Insurance Co.       Column Financial, Inc.         $1,791,935
-----------------------------------------------------------------------------------------------------------------------------------
97               Riverside Apartments              Steadfast Insurance Co.       Column Financial, Inc.         $1,710,716
-----------------------------------------------------------------------------------------------------------------------------------
30b              Fontanelle Apartments             Steadfast Insurance Co.       Column Financial, Inc.         $1,636,460
-----------------------------------------------------------------------------------------------------------------------------------
39               Diamond Court Apartments          Steadfast Insurance Co.       Column Financial, Inc.         $1,585,397
-----------------------------------------------------------------------------------------------------------------------------------
27               Cambridge West Apartments         AIG                           Column Financial, Inc.         $1,553,990
-----------------------------------------------------------------------------------------------------------------------------------
31               Clear Creek Crossing              Steadfast Insurance Co.       Column Financial, Inc.         $1,496,458
-----------------------------------------------------------------------------------------------------------------------------------
115              Summit Ridge                      Steadfast Insurance Co.       Column Financial, Inc.         $1,391,800
-----------------------------------------------------------------------------------------------------------------------------------
68               Korea Town Plaza Shopping Center   Steadfast Insurance Co.      Column Financial, Inc.         $1,358,744
-----------------------------------------------------------------------------------------------------------------------------------
84               Panorama Self Storage             Steadfast Insurance Co.       Column Financial, Inc.         $1,296,065
-----------------------------------------------------------------------------------------------------------------------------------
30d              J & E Apartments                  Steadfast Insurance Co.       Column Financial, Inc.         $1,239,742
-----------------------------------------------------------------------------------------------------------------------------------
114              Stuart Place Apartments           Steadfast Insurance Co.       Column Financial, Inc.         $1,197,176
-----------------------------------------------------------------------------------------------------------------------------------
30c              Islander Apartments               Steadfast Insurance Co.       Column Financial, Inc.         $1,016,589
-----------------------------------------------------------------------------------------------------------------------------------
100              Roxboro Shops                     Steadfast Insurance Co.       Column Financial, Inc.         $996,820
-----------------------------------------------------------------------------------------------------------------------------------
33               Cookson Mobile Home Park          Steadfast Insurance Co.       Column Financial, Inc.         $996,759
-----------------------------------------------------------------------------------------------------------------------------------
92               Plaza West Apartments             Steadfast Insurance Co.       Column Financial, Inc.         $946,538
-----------------------------------------------------------------------------------------------------------------------------------
93               Prairie Village of Grimes I       Steadfast Insurance Co.       Column Financial, Inc.         $909,559
-----------------------------------------------------------------------------------------------------------------------------------
30a              Chinook Apartments                Steadfast Insurance Co.       Column Financial, Inc.         $768,640
-----------------------------------------------------------------------------------------------------------------------------------
44               Falconer Village                  Steadfast Insurance Co.       Column Financial, Inc.         $715,512
-----------------------------------------------------------------------------------------------------------------------------------
43               Evergreen Manor of Waukee         Steadfast Insurance Co.       Column Financial, Inc.         $695,837
-----------------------------------------------------------------------------------------------------------------------------------
110              Silverwood Apartments             Steadfast Insurance Co.       Column Financial, Inc.         $664,395
-----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>

                                    EXHIBIT Q

                                    RESERVED

<PAGE>

                                    EXHIBIT R

                                    RESERVED

<PAGE>

                                   EXHIBIT S-1

                        FORM OF INFORMATION REQUEST FROM
                     CERTIFICATEHOLDER OR CERTIFICATE OWNER

                                     [Date]

Wells Fargo Bank, N.A.
Sixth Street and Marquette Avenue,
Minneapolis, Minnesota  55479-0113
Attention:  Credit Suisse First Boston Mortgage Securities Corp., Commercial
Mortgage Pass-Through Certificates, Series 2005-C1

GMAC Commercial Mortgage Corporation
200 Witmer Road
Horsham, Pennsylvania  19044
Attn: David Cheung

Credit Suisse First Boston Mortgage Securities Corp.
11 Madison Avenue, 5th Floor
New York, New York 10010
Attn:  Edmund Taylor

      Re:   Credit Suisse First Boston Mortgage Securities Corp. Commercial
            Mortgage Pass-Through Certificates, Series 2005-C1

      In accordance with the Pooling and Servicing Agreement dated as of March
1, 2005 (the "Pooling and Servicing Agreement"), among Credit Suisse First
Boston Mortgage Securities Corp., as depositor (the "Depositor"), GMAC
Commercial Mortgage Corporation, as master servicer (the "Master Servicer"),
Lennar Partners, Inc., as special servicer, 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 2005-C1
(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 Servicer's
                        Website pursuant to Section 3.15 of the Pooling and
                        Servicing Agreement.

            ___         The information available on the Trustee'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 Servicer's 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 Master Servicer
            or the Trustee, 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 Servicer nor the Trustee 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 Servicer 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 Servicer 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 2005-C1, 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 Servicer 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 Servicer,
            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 Servicer, 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.
Sixth Street and Marquette Avenue,
Minneapolis, Minnesota  55479-0113
Attention:  Credit Suisse First Boston Mortgage Securities Corp., Commercial
Mortgage Pass-Through Certificates, Series 2005-C1

GMAC Commercial Mortgage Corporation
200 Witmer Road
Horsham, Pennsylvania  19044
Attn: David Cheung

Credit Suisse First Boston Mortgage Securities Corp.
11 Madison Avenue, 5th Floor
New York, New York 10010
Attn:  Edmund Taylor

      Re:   Credit Suisse First Boston Mortgage Securities Corp. Commercial
            Mortgage Pass-Through Certificates, Series 2005-C1

      In accordance with the Pooling and Servicing Agreement dated as of March
1, 2005 (the "Pooling and Servicing Agreement"), among Credit Suisse First
Boston Mortgage Securities Corp., as depositor (the "Depositor"), GMAC
Commercial Mortgage Corporation., as master servicer (the "Master Servicer"),
Lennar Partners, Inc., as special servicer, 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 2005-C1
(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 Servicer's
                        Website pursuant to Section 3.15 of the Pooling and
                        Servicing Agreement.

            ___         The information available on the Trustee'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 Servicer's 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 Servicer or the Trustee, 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 Servicer nor the Trustee 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 Servicer 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 Servicer 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 2005-C1, 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 Servicer 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 Servicer,
            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 Servicer, 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

<TABLE>
<CAPTION>
    Distribution Date             Balance               Distribution Date            Balance
-------------------------    -----------------      ------------------------   ------------------
<S>                           <C>                    <C>                        <C>
April 2005                    $113,100,000.00        November 2009               $113,100,000.00
May 2005                      $113,100,000.00        December 2009               $113,100,000.00
June 2005                     $113,100,000.00        January 2010                $113,100,000.00
July 2005                     $113,100,000.00        February 2010               $113,100,000.00
August 2005                   $113,100,000.00        March 2010                  $113,100,000.00
September 2005                $113,100,000.00        April 2010                  $113,099,448.83
October 2005                  $113,100,000.00        May 2010                    $111,181,000.00
November 2005                 $113,100,000.00        June 2010                  $ 109,431,000.00
December 2005                 $113,100,000.00        July 2010                  $ 107,497,000.00
January 2006                  $113,100,000.00        August 2010                $ 105,730,000.00
February 2006                 $113,100,000.00        September 2010             $ 103,955,000.00
March 2006                    $113,100,000.00        October 2010                $ 94,677,000.00
April 2006                    $113,100,000.00        November 2010               $ 92,895,000.00
May 2006                      $113,100,000.00        December 2010               $ 90,930,000.00
June 2006                     $113,100,000.00        January 2011                $ 89,130,000.00
July 2006                     $113,100,000.00        February 2011               $ 87,322,000.00
August 2006                   $113,100,000.00        March 2011                  $ 67,033,000.00
September 2006                $113,100,000.00        April 2011                  $ 65,234,000.00
October 2006                  $113,100,000.00        May 2011                    $ 63,256,000.00
November 2006                 $113,100,000.00        June 2011                   $ 61,440,000.00
December 2006                 $113,100,000.00        July 2011                   $ 51,614,000.00
January 2007                  $113,100,000.00        August 2011                 $ 49,791,000.00
February 2007                 $113,100,000.00        September 2011              $ 47,960,000.00
March 2007                    $113,100,000.00        October 2011                $ 45,952,000.00
April 2007                    $113,100,000.00        November 2011               $ 45,752,000.00
May 2007                      $113,100,000.00        December 2011               $ 45,552,000.00
June 2007                     $113,100,000.00        January 2012                $ 45,352,000.02
July 2007                     $113,100,000.00        February 2012                $43,759,000.00
August 2007                   $113,100,000.00        March 2012                  $ 41,876,000.00
September 2007                $113,100,000.00        April 2012                  $ 40,266,000.00
October 2007                  $113,100,000.00        May 2012                    $ 38,508,000.00
November 2007                 $113,100,000.00        June 2012                   $ 36,883,000.00
December 2007                 $113,100,000.00        July 2012                   $ 35,109,000.00
January 2008                  $113,100,000.00        August 2012                 $ 33,468,000.00
February 2008                 $113,100,000.00        September 2012              $ 31,818,000.00
March 2008                    $113,100,000.00        October 2012                $ 23,525,000.00
April 2008                    $113,100,000.00        November 2012               $ 21,870,000.00
May 2008                      $113,100,000.00        December 2012               $ 20,070,000.00
June 2008                     $113,100,000.00        January 2013                $ 16,199,000.00
July 2008                     $113,100,000.00        February 2013               $ 14,524,000.00
August 2008                   $113,100,000.00        March 2013                  $ 12,432,000.00
September 2008                $113,100,000.00        April 2013                  $ 10,739,000.00
October 2008                  $113,100,000.00        May 2013                     $ 8,902,000.00
November 2008                 $113,100,000.00        June 2013                    $ 7,193,000.00
December 2008                 $113,100,000.00        July 2013                    $ 5,339,000.00
January 2009                  $113,100,000.00        August 2013                  $ 3,613,000.00
February 2009                 $113,100,000.00        September 2013                 1,878,000.00
March 2009                    $113,100,000.00        October 2013                          $0
April 2009                    $113,100,000.00        November 2013                         $0
May 2009                      $113,100,000.00
June 2009                     $113,100,000.00
July 2009                     $113,100,000.00
August 2009                   $113,100,000.00
September 2009                $113,100,000.00
October 2009                  $113,100,000.00
</TABLE>EXHIBIT 4.2

================================================================================

             CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.
                                 (Depositor)

                                     and

                            COLUMN FINANCIAL, INC.
                                   (Seller)

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

                       MORTGAGE LOAN PURCHASE AGREEMENT

                          Dated as of March 1, 2005

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

================================================================================

<PAGE>

                              TABLE OF CONTENTS

Section 1.    Transactions on or Prior to the Closing Date.................
Section 2.    Closing Date Actions.........................................
Section 3.    Conveyance of Mortgage Loans.................................
Section 4.    Depositor's Conditions to Closing............................
Section 5.    Seller's Conditions to Closing...............................
Section 6.    Representations and Warranties of Seller.....................
Section 7.    Obligations of Seller........................................
Section 8.    Crossed Mortgage Loans.......................................
Section 9.    Rating Agency Fees; Costs and Expenses Associated with a
               Defeasance..................................................
Section 10.   Representations and Warranties of Depositor..................
Section 11.   Survival of Certain Representations, Warranties and
               Covenants...................................................
Section 12.   Transaction Expenses.........................................
Section 13.   Recording Costs..............................................
Section 14.   Notices......................................................
Section 15.   Examination of Mortgage Files................................
Section 16.   Successors...................................................
Section 17.   Governing Law................................................
Section 18.   Severability.................................................
Section 19.   Further Assurances...........................................
Section 20.   Counterparts.................................................
Section 21.   Treatment as Security Agreement..............................
Section 22.   Recordation of Agreement.....................................

Schedule I   Schedule of Transaction Terms

Schedule II  Mortgage Loan Schedule for Column Loans

Schedule III Mortgage Loans Constituting Mortgage Groups

Schedule IV  Mortgage Loans with Lost Mortgage Notes

Schedule V   Exceptions with Respect to Seller's Representations and Warranties

Exhibit A    Representations and Warranties of Seller Regarding the Mortgage
             Loans

Exhibit B    Form of Lost Mortgage Note Affidavit

<PAGE>

                       MORTGAGE LOAN PURCHASE AGREEMENT

            This Mortgage Loan Purchase Agreement (this "Agreement"), dated as
of March 1, 2005, is made by and between COLUMN FINANCIAL, INC., a Delaware
corporation ("Seller"), and CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES
CORP., a Delaware corporation ("Depositor").

                                   RECITALS

            I. Capitalized terms used herein without definition have the
meanings ascribed to them in the Schedule of Transaction Terms attached hereto
as Schedule I, which is incorporated herein by this reference, or, if not
defined therein, in the Pooling and Servicing Agreement.

            II. On the Closing Date, and on the terms set forth herein, Seller
has agreed to sell to Depositor and Depositor has agreed to purchase from Seller
the mortgage loans identified on the schedule (the "Mortgage Loan Schedule")
annexed hereto as Schedule II (each such mortgage loan, a "Mortgage Loan" and,
collectively, the "Mortgage Loans"). Depositor intends to deposit the Mortgage
Loans and other assets into a trust fund (the "Trust Fund") created pursuant to
the Pooling and Servicing Agreement and to cause the issuance of the
Certificates.

                                  AGREEMENT

            NOW, THEREFORE, on the terms and conditions set forth below and for
good and valuable consideration, the receipt and adequacy of which is hereby
acknowledged, Depositor and Seller agree as follows:

            Section 1. Transactions on or Prior to the Closing Date. On or prior
to the Closing Date, Seller shall have delivered the Mortgage Files with respect
to each Mortgage Loan to Wells Fargo Bank, N.A., as trustee (the "Trustee"),
against receipt by Seller of a trust receipt, pursuant to an arrangement between
Seller and the Trustee.

            Section 2. Closing Date Actions. The sale of the Mortgage Loans
shall take place on the Closing Date, subject to and simultaneously with the
deposit of the Mortgage Loans into the Trust Fund, the issuance of the
Certificates and the sale of (a) the Publicly Offered Certificates by Depositor
to the Underwriters pursuant to the Underwriting Agreement and (b) the Private
Certificates by Depositor to the Initial Purchaser pursuant to the Certificate
Purchase Agreement. The closing (the "Closing") shall take place at the offices
of Cadwalader, Wickersham & Taft LLP, One World Financial Center, New York, New
York 10281, or such other location as agreed upon between the parties hereto. On
the Closing Date, the following actions shall take place in sequential order on
the terms set forth herein:

            (i) Seller shall sell to Depositor, and Depositor shall purchase
      from Seller, the Mortgage Loans pursuant to this Agreement for the
      Mortgage Loan Purchase Price (as defined herein). The Mortgage Loan
      Purchase Price shall be paid by Depositor to Seller by wire transfer in
      immediately available funds to an account designated by Seller on or prior
      to the Closing Date (or, by such other method as shall be mutually
      acceptable to Depositor and Seller). The "Mortgage Loan Purchase Price"
      paid by Depositor shall be equal to the amount that the Depositor and the
      Seller have mutually agreed upon (which amount includes, without
      limitation, accrued interest).

            (ii) Pursuant to the terms of the Pooling and Servicing Agreement,
      Depositor shall sell all of its right, title and interest in and to the
      Mortgage Loans to the Trustee for the benefit of the Holders of the
      Certificates.

            (iii) Depositor shall sell to the Underwriters, and the Underwriters
      shall purchase from Depositor, the Publicly Offered Certificates pursuant
      to the Underwriting Agreement, and Depositor shall sell to the Initial
      Purchaser, and the Initial Purchaser shall purchase from Depositor, the
      Private Certificates pursuant to the Certificate Purchase Agreement.

            (iv) The Underwriters will offer the Publicly Offered Certificates
      for sale to the public pursuant to the Prospectus and the Prospectus
      Supplement and the Initial Purchaser will privately place certain classes
      of the Private Certificates pursuant to the Offering Circular.

            Section 3. Conveyance of Mortgage Loans. On the Closing Date, Seller
shall sell, convey, assign and transfer, without recourse except as provided
herein, to Depositor, free and clear of any liens, claims or other encumbrances,
all of Seller's right, title and interest in, to and under: (i) each of the
Mortgage Loans identified on the Mortgage Loan Schedule; and (ii) all property
of Seller described in Section 21(b) of this Agreement, including, without
limitation, (A) all scheduled payments of interest and principal due on or with
respect to the Mortgage Loans after the Cut-off Date and (B) all other payments
of interest, principal or yield maintenance charges received on or with respect
to the Mortgage Loans after the Cut-off Date, other than any such payments of
interest or principal or yield maintenance charges that were due on or prior to
the Cut-off Date. The Mortgage File for each Mortgage Loan shall consist of the
following documents:

            (a) each original Note (or with respect to those Mortgage Loans
listed in Schedule IV hereto, a "lost note affidavit" substantially in the form
of Exhibit B hereto and a true and complete copy of the Note), bearing, or
accompanied by, all prior and intervening endorsements, assignments or allonges
showing a complete chain of endorsement or assignment from the Mortgage Loan
Originator either in blank or to the Seller, and further endorsed by the Seller,
on its face or by allonge attached thereto, without recourse, 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
2005-C1, without recourse, representation or warranty, express or implied";

            (b) 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 or copies of
certified copies from the applicable recording office) of any intervening
assignments thereof from the Mortgage Loan Originator to the Seller, in each
case in the form submitted for recording or, if recorded, with evidence of
recording indicated thereon;

            (c) an original assignment of Mortgage, in recordable form (except
for any missing recording information and, if applicable, completion of the name
of the assignee), from the Seller (or the 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 2005-C1";

            (d) 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 Mortgage Loan Originator of the Loan to the Seller, in each case in the form
submitted for recording or, if recorded, with evidence of recording thereon;

            (e) 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 (c) above), in recordable form (except for any
missing recording information and, if applicable, completion of the name of the
assignee), from the Seller (or the 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 2005-C1";

            (f) an original or true and complete 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 Mortgage
Loan Originator to the Seller;

            (g) 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 (c) above), from the Seller (or the 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 2005-C1," which assignment
may be included as part of an omnibus assignment covering other documents
relating to the Mortgage Loan (provided that such omnibus assignment is
effective under applicable law);

            (h) 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, in those instances where the terms or provisions of the Mortgage,
Note or any related security document have been modified or the Mortgage Loan
has been assumed;

            (i) 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, relating to such
Mortgage Loan;

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

            (k) 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 sufficient to perfect (and
maintain the perfection of) the security interest held by the Mortgage Loan
Originator (and each assignee of record prior to the Trustee) in and to the
personalty of the Borrower at the Mortgaged Property that is described in the
related Mortgage or a separate security agreement, and original UCC Financing
Statement assignments in a form suitable for filing or recording, sufficient to
transfer such UCC Financing Statements to the Trustee;

            (l) 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;

            (m) with respect to any debt of a Borrower permitted under the
related Mortgage 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 (as applicable) any Intercreditor
Agreement, mezzanine loan documents or preferred equity documents, together
with, if the Mortgage Loan is an A Loan, a copy of the Note for each related B
Loan;

            (n) with respect to any Cash Collateral Accounts and Lock-Box
Accounts, an original or copy of any related cash collateral control agreement
or lock-box control agreement, as applicable, and a copy of the UCC Financing
Statements, if any, submitted for filing with respect to the Seller's security
interest in the Cash Collateral Accounts and Lock-Box Accounts and all funds
contained therein (together with UCC Financing Statement assignments in a form
suitable for filing or recording, sufficient to transfer such UCC Financing
Statements to the Trustee on behalf of the Certificateholders);

            (o) 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 Agreement (if separate from the related Mortgage
and Loan Agreement);

            (p) the originals of letters of credit, if any, relating to the
Mortgage Loan, provided that in connection with deliveries of the Mortgage File
to the Trust, such originals shall be delivered to the Master Servicer and
copies thereof shall be delivered to the Trustee;

            (q) any related environmental insurance policies and any
environmental guaranty or indemnity agreements or copies thereof;

            (r) the original ground lease, if any, and any amendments,
modifications or extensions thereto, and any ground lease estoppel, or a copy of
any of the foregoing;

            (s) copies of franchise agreements and franchisor comfort letters,
if any, for hospitality properties; and

            (t) if applicable (and not for purposes of the Seller's delivery
obligations), the original or a counterpart of any post-closing agreement
relating to any modification, waiver or amendment of any term of any Mortgage
Loan (including fees charged the Borrower) required to be added to the Mortgage
File pursuant to Section 3.20(i) of the Pooling and Servicing Agreement.

            Notwithstanding the foregoing, in the event that, in connection with
any Mortgage Loan, the Seller cannot deliver, or cause to be delivered, an
original, counterpart or certified copy, as applicable, of any of the documents
and/or instruments required to be delivered pursuant to clauses (b), (d), (h),
(k) (other than assignments of UCC Financing Statements to be recorded or filed
in accordance with the transfer contemplated by this Agreement), (l) and (n)
(other than assignments of UCC Financing Statements to be recorded or filed in
accordance with the transfer contemplated by this Agreement) above with evidence
of recording or filing thereon on the Closing Date, 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, then the Seller: (i)
shall deliver, or cause to be delivered, to the Trustee a duplicate original or
true copy of such document certified by the applicable public recording or
filing office, the applicable title insurance company or the Seller to be a true
and complete duplicate original or copy of the original thereof submitted for
recording or filing; and (ii) shall deliver, or cause to be delivered, to the
Trustee 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, within 120
days of the Closing Date, which period may be extended up to two times, in each
case for an additional period of 45 days (provided that the 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 county recorder's office such original
or photocopy). Compliance with this paragraph will satisfy the Seller's delivery
requirements under this Section 3 with respect to the subject document(s).

            Notwithstanding the foregoing, in the event that, in connection with
any Mortgage Loan, the Seller cannot deliver, or cause to be delivered, an
original, counterpart or certified copy, as applicable, of any of the documents
and/or instruments required to be delivered pursuant to clauses (b), (d), (h),
(k) (other than assignments of UCC Financing Statements to be recorded or filed
other than in accordance with the transfer contemplated by this Agreement), (l)
and (n) (other than assignments of UCC Financing Statements to be recorded or
filed in accordance with the transfer contemplated by this Agreement) above with
evidence of recording or filing thereon, for any other reason, including without
limitation, that such non-delivered document has been lost, the delivery
requirements of this Agreement shall be deemed to have been satisfied and such
non-delivered document shall be deemed to have been included in the related
Mortgage File if a photocopy of such non-delivered document (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 as filed or
recorded) is delivered to the Trustee on or before the Closing Date.

            Notwithstanding the foregoing, in the event that the Seller cannot
deliver any UCC Financing Statement assignment with the filing information of
the related UCC Financing Statement with respect to any Mortgage Loan, solely
because such UCC Financing Statement has not been returned by the public filing
office where such UCC Financing Statement has been delivered for filing, the
Seller shall so notify the Trustee and shall not be in breach of its obligations
with respect to such delivery, provided that the Seller promptly forwards such
UCC Financing Statement to the Trustee upon its return, together with the
related original UCC Financing Statement assignment in a form appropriate for
filing.

            The Seller may, at its sole cost and expense, but is not obligated
to, engage a third party contractor to prepare or complete in proper form for
filing or recording any and all assignments of Mortgage, assignments of
Assignments of Leases and assignments of UCC Financing Statements to the Trustee
to be delivered pursuant to clauses (c), (e), (k) and (n) above (collectively,
the "Assignments"), to submit the Assignments for filing and recording, as the
case may be, in the applicable public filing and recording offices and to
deliver those Assignments to the Trustee or its designee as those Assignments
(or certified copies thereof) are received from the applicable filing and
recording offices with evidence of such filing or recording indicated thereon.
In the event the Seller engages a third party contractor as contemplated in the
immediately preceding sentence, the rights, duties and obligations of the Seller
pursuant to this Agreement remain binding on such Seller; and, if the Seller
does not engage a third party as contemplated by the immediately preceding
sentence, then the Seller will still be liable for recording and filing fees and
expenses of the Assignments as and to the extent contemplated by Section 13
hereof.

            Within ten (10) Business Days after the Closing Date, the Seller
shall deliver the Servicer Files with respect to each of the Mortgage Loans to
the Master Servicer under the Pooling and Servicing Agreement on behalf of the
Trustee in trust for the benefit of the Certificateholders. Each such Servicer
File shall contain all documents and records in the Seller's possession relating
to such applicable Mortgage Loans (including reserve and escrow 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
privileged communications and documents prepared by the 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 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.

            In addition, with respect to each Mortgage Loan as to which any
Additional Collateral is in the form of a letter of credit as of the Closing
Date, the Seller shall cause to be prepared, executed and delivered to the
issuer of each such letter of credit such notices, assignments and
acknowledgements as are required under such letter of credit to assign, without
recourse, to, and vest in, the Trustee (whether by actual assignment or by
amendment of the letter of credit) the Seller's rights as the beneficiary
thereof and drawing party thereunder. The designated beneficiary under each
letter of credit referred to in the preceding sentence shall be the Trustee.

            For purposes of this Section 3, and notwithstanding any contrary
provision hereof or of the definition of "Mortgage File", if there exists with
respect to any group of Crossed Mortgage 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 Mortgage Loans in such group of
Crossed Mortgage Loans, the inclusion of the original or certified copy of such
document or instrument in the Mortgage File for any of such Crossed Mortgage
Loans and the inclusion of a copy of such original or certified copy in each of
the Mortgage Files for the other Crossed Mortgage Loans in such group of Crossed
Mortgage Loans, shall be deemed the inclusion of such original or certified
copy, as the case may be, in the Mortgage File for each such Crossed Mortgage
Loan.

            The Seller shall, promptly after the Closing Date, but in all events
within three (3) Business Days after the Closing Date, cause all funds on
deposit in escrow accounts maintained with respect to the Mortgage Loans in the
name of the Seller or any other name, to be transferred to the Master Servicer
(or a Sub-Servicer at the direction of the Master Servicer) for deposit into
Servicing Accounts.

            The Trustee, as assignee or transferee of Depositor, shall be
entitled to all scheduled principal payments due after the Cut-off Date, all
other payments of principal due and collected after the Cut-off Date, and all
payments of interest on the Mortgage Loans, minus that portion of any such
payment which is allocable to the period on or prior to the Cut-off Date. All
scheduled payments of principal due on or before the Cut-off Date and collected
after the Cut-off Date, together with the accompanying interest payments, shall
belong to Seller.

            Upon the sale of the Mortgage Loans from Seller to Depositor
pursuant hereto, the ownership of each Mortgage Note, the Mortgage and the
contents of the related Mortgage File shall be vested in Depositor and the
ownership of all records and documents with respect to the related Mortgage Loan
prepared by or which come into the possession of Seller as seller of the
Mortgage Loans hereunder, exclusive in each case of records and documents that
are not required to be delivered hereunder by Seller, shall immediately vest in
Depositor. All Monthly Payments, Principal Prepayments and other amounts
received by Seller and not otherwise belonging to Seller pursuant to this
Agreement shall be sent by Seller within three (3) Business Days after Seller's
receipt thereof to the Master Servicer via wire transfer for deposit by the
Master Servicer into the Collection Account.

            Upon sale of Certificates representing at least 10% of the fair
value of all the Certificates to unaffiliated third parties, Seller shall, under
generally accepted accounting principles ("GAAP"), report its transfer of the
Mortgage Loans to the Depositor, as provided herein, as a sale of the Mortgage
Loans to the Depositor in exchange for the consideration specified in Section 2
hereof. In connection with the foregoing, upon sale of Certificates representing
at least 10% of the fair value of all the Certificates to unaffiliated third
parties, Seller shall cause all of its financial and accounting records to
reflect such transfer as a sale (as opposed to a secured loan). Regardless of
its treatment of the transfer of the Mortgage Loans to the Depositor under GAAP,
Seller 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 to clearly reflect that the Mortgage Loans have
been transferred to the Depositor and are no longer available to satisfy claims
of Seller's creditors.

            After Seller's transfer of the Mortgage Loans to Depositor, as
provided herein, Seller shall not take any action inconsistent with Depositor's
ownership (or the ownership by any of the Depositor's assignees) of the Mortgage
Loans. Except for actions that are the express responsibility of another party
hereunder or under the Pooling and Servicing Agreement, and further except for
actions that Seller is expressly permitted to complete subsequent to the Closing
Date, Seller shall, on or before the Closing Date, take all actions required
under applicable law to effectuate the transfer of the Mortgage Loans by Seller
to Depositor.

            Section 4. Depositor's Conditions to Closing. The obligations of
Depositor to purchase the Mortgage Loans and pay the Mortgage Loan Purchase
Price at the Closing Date under the terms of this Agreement are subject to the
satisfaction of each of the following conditions at or before the Closing:

            (a) Each of the obligations of the Seller required to be performed
by it on or prior to the Closing Date pursuant to the terms of this Agreement
shall have been duly performed and complied with in all material respects; all
of the representations and warranties of Seller under this Agreement (subject to
the exceptions in the Exception Report) shall be true and correct in all
material respects as of the Closing Date; and no event shall have occurred with
respect to the Seller or any of the Mortgage Loans and related Mortgage Files
which, with notice or the passage of time, would constitute a material default
under this Agreement; and Depositor shall have received certificates to the
foregoing effect signed by authorized officers of Seller.

            (b) Depositor, or if directed by Depositor, the Trustee or the
Depositor's attorneys, shall have received in escrow, all of the following
closing documents, in such forms as are agreed upon and reasonably acceptable to
the Depositor and the Seller, duly executed by all signatories other than
Depositor, as required pursuant to the respective terms thereof:

            (i) the Mortgage Files, subject to the proviso to the first sentence
      of Section 1 of this Agreement, which shall have been delivered to and
      held by the Trustee on behalf of Seller;

            (ii) the Mortgage Loan Schedule;

            (iii) the certificate of the Seller confirming its representations
      and warranties set forth in Section 6 (subject to the exceptions in the
      Exception Report) as of the Closing Date;

            (iv) an opinion or opinions of Seller's counsel, dated the Closing
      Date, covering various corporate matters and such other matters as shall
      be reasonably required by the Depositor;

            (v) such other certificates of Seller's officers or others and such
      other documents to evidence fulfillment of the conditions set forth in
      this Agreement as Depositor or its counsel may reasonably request; and

            (vi) all other information, documents, certificates, or letters with
      respect to the Mortgage Loans or Seller and its Affiliates as are
      reasonably requested by the Depositor in order for the Depositor to
      perform any of it obligations or satisfy any of the conditions on its part
      to be performed or satisfied pursuant to any sale of Mortgage Loans by the
      Depositor as contemplated herein.

            (c) The Seller shall have performed or complied with all other terms
and conditions of this Agreement which it is required to perform or comply with
at or before the Closing and shall have the ability to perform or comply with
all duties, obligations, provisions and terms which it is required to perform or
comply with after the Closing.

            (d) If requested, the Seller shall have delivered to the Trustee, on
or before the Closing Date, five limited powers of attorney in favor of the
Trustee and Special Servicer empowering the Trustee and, in the event of the
failure or incapacity of the Trustee, the Special Servicer, to record, at the
expense of the Seller, any Mortgage Loan Documents required to be recorded and
any intervening assignments with evidence of recording thereon that are required
to be included in the Mortgage Files. If requested by the Trustee or the Special
Servicer after the Closing Date, the Seller shall deliver to the Trustee or the
Special Servicer, as applicable, the powers of attorney described in the prior
sentence in form and substance reasonably acceptable to the requesting party.

            (e) The Seller shall have paid or caused to be paid upfront all the
annual fees of each Rating Agency allocable to the Mortgage Loans.

            Section 5. Seller's Conditions to Closing. The obligations of Seller
under this Agreement shall be subject to the satisfaction, on the Closing Date,
of the following conditions:

            (a) Each of the obligations of Depositor required to be performed by
it on or prior to the Closing Date pursuant to the terms of this Agreement shall
have been duly performed and complied with in all material respects; and all of
the representations and warranties of Depositor under this Agreement shall be
true and correct in all material respects as of the Closing Date; and no event
shall have occurred with respect to Depositor which, with notice or the passage
of time, would constitute a material default under this Agreement, and Seller
shall have received certificates to that effect signed by authorized officers of
Depositor.

            (b) Seller shall have received all of the following closing
documents, in such forms as are agreed upon and reasonably acceptable to Seller
and Depositor, duly executed by all signatories other than Seller, as required
pursuant to the respective terms thereof:

                  (A) an officer's certificate of Depositor, dated as of the
            Closing Date, with the resolutions of Depositor authorizing the
            transactions set forth therein, together with copies of the charter,
            by-laws and certificate of good standing dated as of a recent date
            of Depositor; and

                  (B) such other certificates of its officers or others, such
            opinions of Depositor's counsel and such other documents required to
            evidence fulfillment of the conditions set forth in this Agreement
            as Seller or its counsel may reasonably request.

            (c) The Depositor shall have performed or complied with all other
terms and conditions of this Agreement which it is required to perform or comply
with at or before the Closing and shall have the ability to perform or comply
with all duties, obligations, provisions and terms which it is required to
perform or comply with after Closing.

            Section 6. Representations and Warranties of Seller. (a) Seller
represents and warrants to Depositor as of the date hereof, as follows:

            (i) Seller is duly organized and is validly existing as a
      corporation in good standing under the laws of the State of Delaware.
      Seller has conducted and is conducting its business so as to comply in all
      material respects with all applicable statutes and regulations of
      regulatory bodies or agencies having jurisdiction over it, except where
      the failure so to comply would not have a materially adverse effect on the
      performance by Seller of this Agreement, and there is no charge,
      investigation, action, suit or proceeding before or by any court,
      regulatory authority or governmental agency or body pending or, to the
      knowledge of Seller, threatened, which is reasonably likely to materially
      and adversely affect the performance by Seller of this Agreement or the
      consummation of transactions contemplated by this Agreement.

            (ii) Seller has the full power, authority and legal right to hold,
      transfer and convey the Mortgage Loans owned by it and to execute and
      deliver this Agreement (and all agreements and documents executed and
      delivered by Seller in connection herewith) and to perform all
      transactions of Seller contemplated by this Agreement (and all agreements
      and documents executed and delivered by Seller in connection herewith).
      Seller has duly authorized the execution, delivery and performance of this
      Agreement (and all agreements and documents executed and delivered by
      Seller in connection herewith), and has duly executed and delivered this
      Agreement (and all agreements and documents executed and delivered by
      Seller in connection herewith). This Agreement (and each agreement and
      document executed and delivered by Seller in connection herewith),
      assuming due authorization, execution and delivery thereof by each other
      party thereto, constitutes the legal, valid and binding obligation of
      Seller enforceable in accordance with its terms, except as such
      enforcement may be limited by bankruptcy, fraudulent transfer, insolvency,
      reorganization, receivership, moratorium or other laws relating to or
      affecting the rights of creditors generally, by general principles of
      equity (regardless of whether such enforcement is considered in a
      proceeding in equity or at law) and by considerations of public policy.

            (iii) Neither the execution, delivery and performance of this
      Agreement, nor the fulfillment of or compliance with the terms and
      conditions of this Agreement by Seller, will (A) conflict with or result
      in a breach of any of the terms, conditions or provisions of Seller's
      organizational documents; (B) conflict with, result in a breach of, or
      constitute a default or result in an acceleration under, any agreement or
      instrument to which Seller is now a party or by which it (or any of its
      properties) is bound if compliance therewith is necessary (1) to ensure
      the enforceability of this Agreement or (2) for Seller to perform its
      duties and obligations under this Agreement (or any agreement or document
      executed and delivered by Seller in connection herewith); (C) conflict
      with or result in a breach of any legal restriction if compliance
      therewith is necessary (1) to ensure the enforceability of this Agreement
      or (2) for Seller to perform its duties and obligations under this
      Agreement (or any agreement or document executed and delivered by Seller
      in connection herewith); (D) result in the violation of any law, rule,
      regulation, order, judgment or decree to which Seller or its property is
      subject if compliance therewith is necessary (1) to ensure the
      enforceability of this Agreement or (2) for Seller to perform its duties
      and obligations under this Agreement (or any agreement or document
      executed and delivered by Seller in connection herewith); or (E) result in
      the creation or imposition of any lien, charge or encumbrance that would
      have a material adverse effect upon Seller's ability to perform its duties
      and obligations under this Agreement (or any agreement or document
      executed and delivered by Seller in connection herewith), or materially
      impair the ability of the Depositor to realize on the Mortgage Loans owned
      by Seller.

            (iv) Seller is solvent and the sale of Mortgage Loans (1) will not
      cause Seller to become insolvent and (2) is not intended by Seller to
      hinder, delay or defraud any of its present or future creditors. After
      giving effect to its transfer of the Mortgage Loans, as provided herein,
      the value of Seller's assets, either taken at their present fair saleable
      value or at fair valuation, will exceed the amount of Seller's debts and
      obligations, including contingent and unliquidated debts and obligations
      of Seller, and Seller will not be left with unreasonably small assets or
      capital with which to engage in and conduct its business. Seller 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. No
      proceedings looking toward liquidation, dissolution or bankruptcy of the
      Seller are pending or contemplated.

            (v) No consent, approval, authorization or order of, or registration
      or filing with, or notice to, any court or governmental agency or body
      having jurisdiction or regulatory authority over Seller is required for
      (A) Seller's execution, delivery and performance of this Agreement (or any
      agreement or document executed and delivered by Seller in connection
      herewith), (B) Seller's transfer and assignment of the Mortgage Loans, or
      (C) the consummation by Seller of the transactions contemplated by this
      Agreement (or any agreement or document executed and delivered by Seller
      in connection herewith) or, to the extent so required, such consent,
      approval, authorization, order, registration, filing or notice has been
      obtained, made or given (as applicable), except that Seller may not be
      duly qualified to transact business as a foreign corporation or licensed
      in one or more states if such qualification or licensing is not necessary
      to ensure the enforceability of this Agreement (or any agreement or
      document executed and delivered by Seller in connection herewith).

            (vi) In connection with its sale of the Mortgage Loans, Seller is
      receiving new value. The consideration received by Seller upon the sale of
      the Mortgage Loans owned by it constitutes at least fair consideration and
      reasonably equivalent value for the Mortgage Loans.

            (vii) Seller does not believe, nor does it have any reason or cause
      to believe, that it cannot perform each and every covenant of Seller
      contained in this Agreement (or any agreement or document executed and
      delivered by Seller in connection herewith).

            (viii) There are no actions, suits or proceedings pending or, to
      Seller's knowledge, threatened in writing against Seller which are
      reasonably likely to draw into question the validity of this Agreement (or
      any agreement or document executed and delivered by Seller in connection
      herewith) or which, either in any one instance or in the aggregate, are
      reasonably likely to materially impair the ability of Seller to perform
      its duties and obligations under this Agreement (or any agreement or
      document executed and delivered by Seller in connection herewith).

            (ix) Seller's performance of its duties and obligations under this
      Agreement (and each agreement or document executed and delivered by Seller
      in connection herewith) is in the ordinary course of business of Seller
      and Seller's transfer, assignment and conveyance of the Mortgage Loans
      pursuant to this Agreement are not subject to the bulk transfer or similar
      statutory provisions in effect in any applicable jurisdiction. The
      Mortgage Loans do not constitute all or substantially all of Seller's
      assets.

            (x) Seller has not dealt with any Person that may be entitled, by
      reason of any act or omission of Seller, to any commission or compensation
      in connection with the sale of the Mortgage Loans to the Depositor
      hereunder except for (A) the reimbursement of expenses as described herein
      or otherwise in connection with the transactions described in Section 2
      hereof and (B) the commissions or compensation owed to the Underwriters or
      the Initial Purchaser.

            (xi) Seller is not in default or breach of any agreement or
      instrument to which Seller is now a party or by which it (or any of its
      properties) is bound which breach or default would materially and
      adversely affect the ability of Seller to perform its obligations under
      this Agreement.

            (xii) The representations and warranties contained in Exhibit A
      hereto, subject to the exceptions in the Exception Report, are true and
      correct in all material respects as of the date hereof (or, in each case,
      as of such other date specifically set forth in the subject representation
      and warranty) with respect to the Mortgage Loans identified on Schedule
      II.

            (b) The Seller hereby agrees that it shall be deemed to make, as of
the date of substitution, to and for the benefit of the Trustee as the holder of
the Mortgage Loan to be replaced, with respect to any replacement mortgage loan
(a "Replacement Mortgage Loan") that is substituted for a Mortgage Loan affected
by a Material Defect or a Material Breach, pursuant to Section 7 of this
Agreement, each of the representations and warranties set forth in Exhibit A
hereto (subject to exceptions disclosed at such time) (references therein to
"Closing Date" being deemed to be references to the "date of substitution" and
references therein to "Cut-off Date" being deemed to be references to the "most
recent due date for the subject Replacement Mortgage Loan on or before the date
of substitution"). From and after the date of substitution, each Replacement
Mortgage Loan, if any, shall be deemed to constitute a "Mortgage Loan" hereunder
for all purposes.

            Section 7. Obligations of Seller. Each of the representations and
warranties contained in or required to be made by Seller pursuant to Section 6
of this Agreement shall survive the sale of the Mortgage Loans and shall
continue in full force and effect, notwithstanding any restrictive or qualified
endorsement on the Notes and notwithstanding subsequent termination of this
Agreement or the Pooling and Servicing Agreement. The representations and
warranties contained in or required to be made by Seller pursuant to Section 6
of this Agreement shall not be impaired by any review or examination of the
Mortgage Files or other documents evidencing or relating to the Mortgage Loans
or any failure on the part of Depositor to review or examine such documents and
shall inure to the benefit of the initial transferee of the Mortgage Loans from
Depositor including, without limitation, the Trustee for the benefit of the
Holders of the Certificates, notwithstanding any restrictive or qualified
endorsement on any Note, assignment of Mortgage or reassignment of Assignment of
Leases but shall not inure to the benefit of any subsequent transferee
thereafter.

            If the Seller receives notice of a breach of any of the
representations or warranties contained in Exhibit A hereto and made by the
Seller with respect to any Mortgage Loan listed on Schedule II hereto, as of the
date hereof in Section 6(a)(xii) or as of the Closing Date pursuant to Section
4(b)(iii), or with respect to any Replacement Mortgage Loan, as of the date of
substitution pursuant to Section 6(b) (in any such case, a "Breach"), or
receives notice that (A) any document required to be included in the Mortgage
File related to any Mortgage Loan is not in the Trustee's possession within the
time period required herein or (B) such document has not been properly executed
or is otherwise defective on its face (the circumstances in the foregoing
clauses (A) and (B), in each case, a "Defect" (including the "Defects" described
below) in the related Mortgage File), and if such Breach or Defect, as the case
may be, materially and adversely affects the value of the related Mortgage Loan
or the interests of the Certificateholders therein (any Breach or Defect that
materially and adversely affects the value of the related Mortgage Loan or the
interests of the Certificateholders therein, a "Material Breach" and a "Material
Defect", respectively), then the Seller shall, upon request of the Depositor,
the Trustee, the Master Servicer or the Special Servicer, not later than the
earlier of 90 days from the receipt by the Seller of such request or the
Seller's discovery of such Material Breach or Material Defect (subject to the
second succeeding paragraph, the "Initial Resolution Period"): (i) cure such
Material Breach or Material Defect, as the case may be, in all material
respects; (ii) repurchase the affected Mortgage Loan at the applicable Purchase
Price (as defined in the Pooling and Servicing Agreement); or (iii) substitute,
in accordance with the Pooling and Servicing Agreement, one or more Qualified
Substitute Mortgage Loans (as defined in the Pooling and Servicing Agreement)
for such affected Mortgage Loan (provided that in no event shall any
substitution occur later than the second anniversary of the Closing Date) and
pay the Master Servicer for deposit into the Collection Account any Substitution
Shortfall Amount (as defined in the Pooling and Servicing Agreement) in
connection therewith; provided, however, that if (i) such Material Breach or
Material Defect is capable of being cured but not within the Initial Resolution
Period, (ii) such Material Breach or Material Defect does not cause the related
Mortgage Loan not to be a "qualified mortgage" (within the meaning of Section
860G(a) 3) of the Code), (iii) the Seller has commenced and is diligently
proceeding with the cure of such Material Breach or Material Defect within the
Initial Resolution Period and (iv) the Seller has delivered to the Rating
Agencies, the Master Servicer, the Special Servicer and the Trustee an Officer's
Certificate 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 the cure will be effected within the
additional 90-day period, then the Seller shall have an additional 90 days to
cure such Material Defect or Material Breach. With respect to any substitution
of one or more Qualified Substitute Mortgage Loans for a Mortgage Loan
hereunder, (A) no such substitution may be made in any calendar month after the
Determination Date for such month; (B) scheduled payments of principal and
interest due with respect to the Qualified Substitute Mortgage Loan(s) after the
related date of substitution shall be part of the Trust Fund; and (C) scheduled
payments of principal and interest due with respect to such Qualified Substitute
Mortgage Loan(s) on or prior to the related date of substitution shall not be
part of the Trust Fund, and the Seller shall be entitled to receive such
payments promptly following receipt by the Master Servicer or Special Servicer,
as applicable, under the Pooling and Servicing Agreement.

            Any of the following will cause a document in the Mortgage File to
be deemed to have a "Defect" and to be conclusively presumed to materially and
adversely affect the interests of Certificateholders in and the value of a
Mortgage Loan: (a) the absence from the Mortgage File of the original signed
Note, unless the Mortgage File contains a signed lost note affidavit and
indemnity; (b) the absence from the Mortgage File of 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, together 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 absence from the
Mortgage File of the item called for by clause (i) of the definition of Mortgage
File in Section 3; (d) the absence from the Mortgage File of any intervening
assignments 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 and a certificate stating that the original
intervening assignments were sent for recordation; (e) the absence from the
Mortgage File of any required original letter of credit (unless such original
has been delivered to the Master Servicer and copy thereof is part of the
Mortgage File), provided that such Defect may be cured by any substitute letter
of credit or cash reserve on behalf of the related Borrower; or (f) the absence
from the Mortgage File of the original or a copy of any required ground lease.

            Any Defect or Breach which causes any Mortgage Loan not to be a
"qualified mortgage" (within the meaning of Section 860G(a) 3) of the Code)
shall be deemed to materially and adversely affect the interest of
Certificateholders therein and the Initial Resolution Period for the affected
Mortgage Loan shall be 90 days following the earlier of (a) notice to Seller of
the discovery of such Defect or Breach by any party to the Pooling and Servicing
Agreement or (b) Seller's discovery of such Defect or Breach (which period shall
not be subject to extension).

            If the Seller does not, as required by this Section 7, correct or
cure a Material Breach or a Material Defect in all material respects within the
applicable Initial Resolution Period (as extended pursuant to this Section 7),
or if such Breach or Defect is not capable of being so corrected or cured within
such period, then the Seller shall purchase or substitute for the affected
Mortgage Loan as provided in this Section 7. If (i) any Mortgage Loan is
required to be repurchased or substituted for as provided above, (ii) such
Mortgage Loan is a Crossed Mortgage Loan that is a part of a Mortgage Group (as
defined below) and (iii) the applicable Breach or Defect does not constitute a
Breach or Defect, as the case may be, as to any other Crossed Mortgage Loan in
such Mortgage Group (without regard to this paragraph), then the applicable
Breach or Defect, as the case may be, will be deemed to constitute a Breach or
Defect, as the case may be, as to any other Crossed Mortgage Loan in the
Mortgage Group for purposes of the above provisions, and the Seller will be
required to repurchase or substitute for such other Crossed Mortgage Loan(s) in
the related Mortgage Group in accordance with the provisions of this Section 7
unless the Crossed Mortgage Loan Repurchase Criteria would be satisfied if
Seller were to repurchase or substitute for only the affected Crossed Mortgage
Loans as to which a Material Breach or Material Defect 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 the Pooling and
Servicing Agreement applicable to a repurchase or substitution, as the case may
be, would be so satisfied. In the event that the Crossed Mortgage Loan
Repurchase Criteria would be so satisfied, the Mortgage Loan Seller may elect
either to repurchase or substitute for only the affected Crossed Mortgage Loan
as to which the Material Defect or Material Breach exists or to repurchase or
substitute for the aggregated Crossed Mortgage Loans. The determination of the
Special Servicer as to whether the Crossed Mortgage Loan Repurchase Criteria
have been satisfied shall be conclusive and binding in the absence of manifest
error. In the event that one or more of such other Crossed Mortgage Loans
satisfy the Crossed Mortgage Loan Repurchase Criteria, the Seller may elect
either to repurchase or substitute for only the affected Crossed Mortgage Loan
as to which the related Breach or Defect exists or to repurchase or substitute
for all of the Crossed Mortgage Loans in the related Mortgage Group. The Seller
shall be responsible for the cost of (and, if so directed by the Special
Servicer, obtaining) any Appraisal required for the Special Servicer to
determine if the Crossed Mortgage Loan Repurchase Criteria have been satisfied,
so long as the scope and cost of such Appraisal has been approved by the Seller
(such approval not to be unreasonably withheld). For purposes of this paragraph,
a "Mortgage Group" is any group of Mortgage Loans identified as a Mortgage Group
on Schedule III to this Agreement.

            Notwithstanding the foregoing, if there is a Material Breach or
Material Defect with respect to one or more Mortgaged Properties (but not all of
the Mortgaged Properties) with respect to a Mortgage Loan, the Seller will not
be obligated to repurchase or substitute for the entire Mortgage Loan if the
Mortgaged Loan may, pursuant to the terms of the related Mortgage Loan
Documents, be severed to allow for the repurchase of a portion of the Mortgage
Loan representing the affected Mortgaged Property and the Mortgage Loan
remaining after such severance satisfies the requirements, if any, set forth in
the Mortgage Loan Documents and (i) the Seller provides an opinion of counsel to
the effect that such partial release would not cause an Adverse REMIC Event (as
defined in the Pooling and Servicing Agreement) to occur, (ii) such Seller pays
(or causes to be paid) the applicable release price required under the Mortgage
Loan Documents and, to the extent not reimbursable out of the release price
pursuant to the related Mortgage Loan Documents, any additional amounts
necessary to cover all reasonable out-of-pocket expenses reasonably incurred by
the Master Servicer, the Special Servicer, the Trustee or the Trust Fund in
connection therewith, including any unreimbursed advances and interest thereon
made with respect to the Mortgaged Property that is being released, and (iii)
such cure by release of such Mortgaged Property is effected within the time
periods specified for cure of a Material Breach or Material Defect in this
Section 7.

            The Purchase Price or Substitution Shortfall Amount for any
repurchased or substituted Mortgage Loan shall be payable to the Depositor or,
subsequent to the assignment of the Mortgage Loans to the Trustee, the Trustee
as its assignee, by wire transfer of immediately available funds to the account
designated by the Depositor or the Trustee, as the case may be, and the
Depositor or the Trustee, as the case may be, upon receipt of such funds (and,
in the case of a substitution, the Mortgage File(s) for the related Qualified
Substitute Mortgage Loans), shall promptly release the related Mortgage File and
Servicer File (and all other documents pertaining to such Mortgage Loan
possessed by the Depositor or the Trustee, as applicable, or on its behalf, but
excluding any draft documents, attorney/client privileged communications and
documents prepared by the Depositor or the Trustee, as applicable, or any of its
Affiliates solely for internal communication) or cause them to be released, to
Seller and shall execute and deliver such instruments of transfer, endorsement
or assignment as shall be necessary to vest in the Seller the legal and
beneficial ownership of such Mortgage Loan (including any property acquired in
respect thereof or proceeds of any insurance policy with respect thereto) and
the related Mortgage Loan Documents and shall deliver to Seller any escrow
payments and reserve funds held by it, or on its behalf, with respect to such
repurchased or replaced Mortgage Loan.

            It is understood and agreed that the obligations of the Seller set
forth in this Section 7 to cure, substitute for or repurchase a Mortgage Loan
listed on Schedule II hereto constitute the sole remedies available to the
Depositor and its successors and assigns against Seller respecting any Breach or
Defect affecting such Mortgage Loan.

            Section 8. Crossed Mortgage Loans. With respect to any Crossed
Mortgage Loan conveyed hereunder, to the extent that the Seller repurchases or
substitutes for an affected Crossed Mortgage Loan in the manner prescribed above
while the Trustee continues to hold any related Crossed Mortgage Loans, the
Seller and the Depositor (on behalf of its successors and assigns) agree to
modify upon such repurchase or substitution, the related Mortgage Loan Documents
in a manner such that such affected Crossed Mortgage Loan repurchased or
substituted by the Seller, on the one hand, and any related Crossed Mortgage
Loans still held by the Trustee, on the other, would no longer be
cross-defaulted or cross-collateralized with one another; provided, that the
Seller shall have furnished to the Trustee, at the Seller's expense, an opinion
of counsel that such modification shall not cause an Adverse REMIC Event;
provided, further, that if such opinion cannot be furnished, the Seller and the
Depositor hereby agree that such repurchase or substitution of only the affected
Crossed Mortgage Loans, notwithstanding anything to the contrary herein, shall
not be permitted (in which case, the Seller will be obligated to purchase all
Crossed Mortgage Loans). Any reserve or other cash collateral or letters of
credit securing the affected Crossed Mortgage Loans shall be allocated between
such Mortgage Loans in accordance with the Mortgage Loan Documents. All other
terms of the Mortgage Loans shall remain in full force and effect, without any
modification thereof (unless otherwise modified in accordance with the Pooling
and Servicing Agreement).

            Section 9. Rating Agency Fees; Costs and Expenses Associated with a
Defeasance. The Seller shall pay all Rating Agency fees associated with an
assumption of a Mortgage Loan to the extent such fees have not been paid by the
related Borrower and such Borrower is not required to pay them under the terms
of the related Mortgage Loan Documents in effect on or before the Closing Date,
the payment of which fees shall constitute the sole remedy of any breach by a
Seller of representation (xxviii)(1) set forth on Exhibit A hereto. The Seller
shall pay all reasonable costs and expenses associated with a defeasance of a
Mortgage Loan to the extent such costs and expenses have not been paid by the
related Borrower and such Borrower is not required to pay them under the terms
of the related Mortgage Loan Documents in effect on or before the Closing Date,
the payment of which fees shall constitute the sole remedy of any breach by a
Seller of representation (liv)(F) set forth on Exhibit A hereto.

            Section 10. Representations and Warranties of Depositor. Depositor
hereby represents and warrants to Seller as of the date hereof, as follows:

            (a) Depositor is duly organized and is validly existing as a
corporation in good standing under the laws of the State of Delaware, with full
corporate power and authority to own its assets and conduct its business as it
is conducted, and is duly qualified as a foreign corporation in good standing in
all jurisdictions in which the ownership or lease of its property or the conduct
of its business requires such qualification (except where the failure to qualify
would not have a materially adverse effect on the consummation of any
transactions contemplated by this Agreement).

            (b) The execution and delivery by Depositor of this Agreement and
the performance of Depositor's obligations hereunder are within the corporate
power of Depositor and have been duly authorized by Depositor and neither the
execution and delivery by Depositor of this Agreement nor the compliance by
Depositor with the provisions hereof, nor the consummation by Depositor of the
transactions contemplated by this Agreement, will (i) conflict with or result in
a breach of, or constitute a default under, the certificate of incorporation or
by-laws of Depositor or, after giving effect to the consents or taking of the
actions contemplated by clause (ii) of this paragraph (b), any of the provisions
of any law, governmental rule, regulation, judgment, decree or order binding on
Depositor or its properties, or any of the provisions of any material indenture
or mortgage or any other material contract or other instrument to which
Depositor is a party or by which it is bound or result in the creation or
imposition of any lien, charge or encumbrance upon any of its properties
pursuant to the terms of any such indenture, mortgage, contract or other
instrument or (ii) require the consent of, notice to or any filing with any
person, entity or governmental body, which has not been obtained or made by
Depositor, except where, in any of the instances contemplated by clause (i)
above or this clause (ii), the failure to do so will not have a material and
adverse effect on the consummation of any transactions contemplated by this
Agreement.

            (c) This Agreement has been duly executed and delivered by Depositor
and this Agreement constitutes a legal, valid and binding instrument,
enforceable against Depositor in accordance with its terms, subject, as to the
enforcement of remedies, to applicable bankruptcy, reorganization, insolvency,
moratorium and other laws affecting the rights of creditors generally and to
general principles of equity and the discretion of the court (regardless of
whether enforcement of such remedies is considered in a proceeding in equity or
at law) and, as to rights of indemnification hereunder, subject to limitations
of public policy under applicable securities laws.

            (d) There is no litigation, charge, investigation, action, suit or
proceeding by or before any court, regulatory authority or governmental agency
or body pending or, to the knowledge of Depositor, threatened against Depositor
the outcome of which could be reasonably expected to materially and adversely
affect the consummation of any transactions contemplated by this Agreement.

            Section 11. Survival of Certain Representations, Warranties and
Covenants. The respective representations and warranties set forth in or made
pursuant to this Agreement, and the respective obligations of the parties hereto
under Sections 7 and 9 of this Agreement, will remain in full force and effect,
regardless of any investigation or statement as to the result thereof made by or
on behalf of any party and will survive payment for the various transfers
referred to herein and delivery of the Certificates or termination of this
Agreement.

            Section 12. Transaction Expenses. Whether or not this Agreement is
terminated, both the Depositor and the Seller agree to pay the transaction
expenses incurred in connection with the transactions herein contemplated as set
forth in the Closing Statement.

            Section 13. Recording Costs. Seller agrees to reimburse the Trustee
or its designee all recording and filing fees and expenses incurred by the
Trustee or its designee in connection with the recording or filing of the
Mortgage Loan Documents listed in Section 3 of this Agreement, including
Assignments. In the event Seller elects to engage a third party contractor to
prepare, complete, file and record Assignments with respect to Mortgage Loans as
provided in Section 3 of this Agreement, Seller shall contract directly with
such contractor and shall be responsible for such contractor's compensation and
reimbursement of recording and filing fees and other reimbursable expenses
pursuant to their agreement.

            Section 14. Notices. All demands, notices and communications
hereunder shall be in writing and shall be deemed to have been duly given if
personally delivered to or mailed, by registered mail, postage prepaid, by
overnight mail or courier service, or transmitted by facsimile and confirmed by
similar mailed writing, if to the Depositor, addressed to the Depositor at 11
Madison Avenue, 5th Floor, New York, New York 10010, Attention: Edmund Taylor,
Telecopy No.: (212) 743-4756 (with a copy to Casey McCutcheon, Esq., Legal &
Compliance Department, Telecopy No.: (917) 326-8433, or such other address or
telecopy number as may be designated by the Depositor to the Seller in writing,
or, if to the Seller, addressed to the Seller at 3414 Peachtree Road, N.E.,
Suite 1140, Atlanta, Georgia 30326, Attention: Robert Barnes, Telecopy No.:
(404) 239-0419, or such other address or telecopy number as may be designated by
the Seller to the Depositor in writing.

            Section 15. Examination of Mortgage Files. Upon reasonable notice,
Seller, prior to the Closing Date, will make the Mortgage Files available to
Depositor or its agent for examination during normal business hours at Seller's
offices or such other location as shall otherwise be agreed upon by Depositor
and Seller. The fact that Depositor or its agent has conducted or has failed to
conduct any partial or complete examination of the Mortgage Files shall not
affect the rights of Depositor or the Trustee (for the benefit of the
Certificateholders) to demand cure, repurchase, or other relief as provided
herein.

            Section 16. Successors. This Agreement shall inure to the benefit of
and shall be binding upon Seller and Depositor and their respective successors,
permitted assigns and legal representatives, and nothing expressed in this
Agreement is intended or shall be construed to give any other person any legal
or equitable right, remedy or claim under or in respect of this Agreement, or
any provisions herein contained, this Agreement and all conditions and
provisions hereof being intended to be and being for the sole and exclusive
benefit of such persons and for the benefit of no other person; it being
understood that the rights of Depositor pursuant to this Agreement, subject to
all limitations herein contained, including those set forth in Section 7 of this
Agreement, may be assigned to the Trustee, for benefit of the
Certificateholders, as may be required to effect the purposes of the Pooling and
Servicing Agreement and, upon such assignment, the Trustee shall succeed to such
rights of Depositor hereunder, provided that the Trustee shall have no right to
further assign such rights to any other Person. No owner of a Certificate issued
pursuant to the Pooling and Servicing Agreement shall be deemed a successor
because of such ownership.

            Section 17. Governing Law. THIS AGREEMENT SHALL BE GOVERNED AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK APPLICABLE TO
AGREEMENTS TO BE MADE AND PERFORMED ENTIRELY WITHIN SUCH STATE WITHOUT GIVING
EFFECT TO CHOICE OF LAW PRINCIPLES. TO THE FULLEST EXTENT PERMITTED UNDER
APPLICABLE LAW, THE SELLER AND THE DEPOSITOR EACH HEREBY IRREVOCABLY (I) SUBMITS
TO THE JURISDICTION OF ANY NEW YORK STATE AND FEDERAL COURTS SITTING IN NEW YORK
CITY WITH RESPECT TO MATTERS ARISING OUT OF OR RELATING TO THIS AGREEMENT; (II)
AGREES THAT ALL CLAIMS WITH RESPECT TO SUCH ACTION OR PROCEEDING MAY BE HEARD
AND DETERMINED IN SUCH NEW YORK STATE OR FEDERAL COURTS; (III) WAIVES, TO THE
FULLEST POSSIBLE EXTENT, THE DEFENSE OF AN INCONVENIENT FORUM; AND (IV) AGREES
THAT A FINAL JUDGMENT IN ANY SUCH ACTION OR PROCEEDING SHALL BE CONCLUSIVE AND
MAY BE ENFORCED IN OTHER JURISDICTIONS BY SUIT ON THE JUDGMENT OR IN ANY OTHER
MANNER PROVIDED BY LAW.

            Section 18. Severability. If any provision of this Agreement shall
be prohibited or invalid under applicable law, this Agreement shall be
ineffective only to such extent, without invalidating the remainder of this
Agreement.

            Section 19. Further Assurances. Depositor and Seller agree to
execute and deliver such instruments and take such actions as the other party
may, from time to time, reasonably request in order to effectuate the purpose
and to carry out the terms of this Agreement.

            Section 20. Counterparts. This Agreement may be executed in
counterparts (and by each of the parties hereto on different counterparts), each
of which when so executed and delivered will be an original, and all of which
together will be deemed to constitute but one and the same instrument.

            Section 21. Treatment as Security Agreement. It is the express
intent of the parties hereto that the conveyance of the Mortgage Loans by Seller
to Depositor as provided in this Agreement be, and be construed as, a sale of
the Mortgage Loans by Seller to Depositor. It is, further, not the intention of
the parties that such conveyance be deemed a pledge of the Mortgage Loans by
Seller to Depositor to secure a debt or other obligation of Seller. However, in
the event that, notwithstanding the intent of the parties, the Mortgage Loans
are held to be property of Seller or if for any reason this Agreement is held or
deemed to create a security interest in the Mortgage Loans:

            (a) this Agreement shall hereby create a security agreement within
the meaning of Articles 8 and 9 of the Uniform Commercial Code in effect in the
applicable state;

            (b) the conveyance provided for in this Agreement shall hereby grant
from Seller to Depositor a security interest in and to all of Seller's right,
title, and interest, whether now owned or hereafter acquired, in and to:

            (i) all accounts, contract rights (including any guarantees),
      general intangibles, chattel paper, instruments, documents, money, deposit
      accounts, certificates of deposit, goods, letters of credit, advices of
      credit and investment property consisting of, arising from or relating to
      any of the property described in the Mortgage Loans, including the related
      Notes, Mortgages and title, hazard and other insurance policies,
      identified on the Mortgage Loan Schedule or that constitute Replacement
      Mortgage Loans, and all distributions with respect thereto payable after
      the Cut-off Date;

            (ii) all accounts, contract rights, general intangibles, chattel
      paper, instruments, documents, money, deposit accounts, certificates of
      deposit, goods, letters of credit, advices of credit and investment
      property arising from or by virtue of the disposition of, or collections
      with respect to, or insurance proceeds payable with respect to, or claims
      against other persons with respect to, all or any part of the collateral
      described in (i) above (including any accrued discount realized on
      liquidation of any investment purchased at a discount), in each case,
      payable after the Cut-off Date; and

            (iii) all cash and non-cash proceeds of the collateral described in
      clauses (i) and (ii) above payable after the Cut-off Date;

            (c) the possession by Depositor or its assignee of the Notes and
such other goods, letters of credit, advices of credit, instruments, money,
documents, chattel paper or certificated securities shall be deemed to be
possession by the secured party or possession by a purchaser or a person
designated by him or her, for purposes of perfecting the security interest
pursuant to the Uniform Commercial Code (including, without limitation, Sections
9-306, 9-313 and 9-314 thereof) as in force in the relevant jurisdiction; and

            (d) notifications to persons holding such property, and
acknowledgments, receipts, confirmations from persons holding such property,
shall be deemed to be notifications to, or acknowledgments, receipts or
confirmations from, financial intermediaries, bailees or agents of, or persons
holding for (as applicable), Depositor or its assignee for the purpose of
perfecting such security interest under applicable law.

            The Seller at the direction of the Depositor or its assignee, shall,
to the extent consistent with this Agreement, take such actions as may be
necessary to ensure that, if this Agreement were deemed to create a security
interest in the Mortgage Loans and the proceeds thereof, such security interest
would be a perfected security interest of first priority under applicable law
and will be maintained as such throughout the term of this Agreement. In
connection herewith, Depositor and its assignee shall have all of the rights and
remedies of a secured party and creditor under the Uniform Commercial Code as in
force in the relevant jurisdiction and may execute and file such UCC Financing
Statements as may be necessary or appropriate to accomplish the foregoing.

            Section 22. Recordation of Agreement. To the extent permitted by
applicable law, this Agreement is subject to recordation following the Closing
Date 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 Seller at
Seller's expense at the direction of Depositor accompanied by an opinion of
counsel to the effect that such recordation materially and beneficially affects
the interests of Depositor.

                                   *  *  *

<PAGE>

            IN WITNESS WHEREOF, the parties hereto have caused this Mortgage
Loan Purchase Agreement to be duly executed and delivered as of the date first
above written.

                                       COLUMN FINANCIAL, INC.,
                                          as Seller

                                       By:
                                          ------------------------------------
                                          Name:
                                          Title:

                                       CREDIT SUISSE FIRST BOSTON MORTGAGE
                                          SECURITIES CORP.,
                                          as Depositor

                                       By:
                                          ------------------------------------
                                          Name:
                                          Title:

<PAGE>

                                                                      SCHEDULE I

                        SCHEDULE OF TRANSACTION TERMS

            This Schedule of Transaction Terms is appended to and incorporated
by reference in the Mortgage Loan Purchase Agreement (the "Agreement"), dated as
of March 1, 2005, between Column Financial, Inc. (the "Seller") and Credit
Suisse First Boston Mortgage Securities Corp. (the "Depositor"). Capitalized
terms used herein without definition have the meanings given them in or by
reference in the Agreement or, if not defined in the Agreement, in the Pooling
and Servicing Agreement.

            "Affiliate" means with respect to any specified Person, any other
Person controlling or controlled by or under common control with such specified
Person.

            "Borrower" means the borrower under a Mortgage Loan.

            "Certificate Purchase Agreement" means the Certificate Purchase
Agreement, dated March 3, 2005, between Depositor and the Initial Purchaser.

            "Certificates" means the Credit Suisse First Boston Mortgage
Securities Corp. Commercial Mortgage Pass-Through Certificates, Series 2005-C1,
issued in multiple classes.

            "Closing Date" means March [17], 2005.

            "Closing Statement" means the closing statement dated as of the
Closing Date and signed by, among others, the parties to this Agreement.

            "Code" means the Internal Revenue Code of 1986, as amended.

            "Crossed Mortgage Loan" means any Mortgage Loan which is
cross-defaulted and cross-collateralized with any other Mortgage Loan.

            "Cut-off Date" means, individually and collectively, the applicable
Due Dates for the respective Mortgage Loans occurring in March 2005.

            "Environmental Report" means the environmental audit report with
respect to each Mortgaged Property delivered to Seller in connection with the
related Mortgage, if any.

            "Exception Report" means exceptions with respect to the
representations and warranties made by the Seller as to the Mortgage Loans in
Section 6(a)(xii) and under the written certificate described in Section
4(b)(iii) of the Agreement, which exceptions are set forth in Schedule V
attached hereto and made a part hereof.

            "Initial Purchaser" means Credit Suisse First Boston LLC.

            "Loan Agreement" means, with respect to any Mortgage Loan, the loan
agreement, if any, between the related Mortgage Loan Originator and the related
Borrower, pursuant to which such Mortgage Loan was made.

            "Mortgage File" means, collectively, the documents and instruments
pertaining to a Mortgage Loan required to be included in the related Mortgage
File pursuant to Section 3 (subject to the proviso in Section 1 of the
Agreement).

            "Mortgage Loan Documents" means, collectively, the documents and
instruments pertaining to a Mortgage Loan to be included in either the related
Mortgage File or the related Servicer File.

            "Mortgage Loan Originator" means any institution which originated a
Mortgage Loan for a related Borrower.

            "Mortgage Loan Purchase Price" means the amount described in Section
2 of the Agreement.

            "Offering Circular" means the confidential offering circular dated
March 3, 2005, describing certain classes of the Private Certificates.

            "Pooling and Servicing Agreement" means the Pooling and Servicing
Agreement creating the Trust Fund and the interests therein, dated as of March
1, 2005, among the Master Servicer, the Special Servicer, the Depositor, the
Trustee and the Certificate Administrator, including, without limitation, the
exhibits and schedules annexed thereto.

            "Private Certificates" means the Certificates that are not Publicly
Offered Certificates.

            "Prospectus" means the Prospectus, dated March 3, 2005, that is a
part of the Depositor's registration statement on Form S-3 (File No.
333-121904).

            "Prospectus Supplement" means the Prospectus Supplement, dated March
3, 2005, relating to the Publicly Offered Certificates.

            "Publicly Offered Certificates" means the Class A-1, Class A-2,
Class A-AB, Class A-3, Class A-4, Class A-J, Class B, Class C and Class D
Certificates.

            "Servicer File" means, collectively, all documents, records and
copies pertaining to a Mortgage Loan which are required to be included in the
related Servicer File pursuant to Section 3 thereof.

            "Underwriters" means Credit Suisse First Boston LLC, GMAC Commercial
Holding Capital Markets Corp., Greenwich Capital Markets, Inc. and Banc of
America Securities LLC.

            "Underwriting Agreement" means the Underwriting Agreement, dated
March 3, 2005, between the Depositor and the Underwriters.

<PAGE>

                                                                   SCHEDULE II

                             MORTGAGE LOAN SCHEDULE

<TABLE>
<CAPTION>

    #        Crossed                                     Property Name
---------------------------------------------------------------------------------------------------------
<S>         <C>         <C>
   1a                   Eastridge Mall
   1b                   Pine Ridge Mall
   1c                   Red Cliffs
   1d                   Three Rivers Mall
    2                   Phelps Dodge Tower
    3           A       Bexley Creekside Apartments
    4           A       Bexley Commons at Rosedale Apartments
    7           B       BP Sweetwater Ranch Apartments
    8           B       BP Prescott Place II Apartments
    9           B       BP Prescott Place I Apartments
   10           B       BP Berkshire of Addison Apartments
   12                   2001 M Street
   13                   Rachel Bridge Apartments
   14                   Battery Park City Retail and Entertainment Complex
   16           C       BP Huntington Lakes Apartments
   17           C       BP Huntington Ridge Apartments
   18           C       BP Berkshire Springs Apartments
   21                   Walnut Creek Retail
   22                   Kings Crossing Apartments
   23                   Paseo Marketplace
   25                   Voice of America Center Phase I
   28                   Hotel Giraffe
   29                   Best Western Gateway Hotel
   30                   One Columbus Center
   31                   Pavilions at Arrowhead
   34                   Rancho Vista Industrial 5 & 6
   35                   Cross Creek Apartments
   36                   Coral Island Shopping Center
   38                   Lafayette Corporate Campus
   40                   Brittany Bay Apartments
   41                   Shoppes of Plantation Acres
   42                   Kingstowne I Apartments
   44                   Shops at Pinnacle Peak
   45                   333 Gellert Boulevard
   46                   Library Hotel
   47                   Columbia III Shopping Center
   48                   Bank One Buildings
   49                   Miller West Plaza
   50                   Lohman's Crossing Shopping Center
   51                   El Dorado Shopping Center
   53                   Fiddler's Cove
   56                   Bridges of Southpoint Apartments
   57                   Bromley Park Apartments
   58                   Windtree Apartments
   59                   BP Berkshire Hills Apartments
   60                   Valley Plaza
   61                   Timber Ridge Plaza
   62                   Garden City Apartments
   64                   Trails of Windfern Apartments
   65                   Hatteras Island Plaza
   66                   Tower Place Apartments
   67a                  Parkway Apartments
   67b                  Fontanelle Apartments
   67c                  J & E Apartments
   67d                  Islander Apartments
   67e                  Chinook Apartments
   69                   BP Pleasant Woods Apartments
   70                   Daneland Mobile Home Park
   71                   Rosemont Crossing Apartments
   72                   Glenwood Apartments
   74                   Shops on Montevallo
   75                   Fieldstone Apartments
   76                   Unizan Plaza
   78                   Midland Heights Apartments
   79                   Goldenpointe Apartments
   80                   Sunridge Plaza Phase II
   81                   Stone Gate Apartments
   83                   Brookhaven Apartments
   84                   Mission Valley Square
   85                   Cherry Bottom Shopping Center
   87                   The Heritage Building
   88           D       Highland - Highland Park Place
   89           D       Highland-13939 Livernois Avenue
   90                   Robin Mobile Home Park
   91                   910 Office Building
   92                   Tyler Plaza
   93                   Heritage Plaza
   95                   Logan Building
   98                   Pecan Place Apartments
   100                  Ashford Village Shopping Center
  101a                  Madison County Self Storage - Ridgeland
  101b                  Madison County Self Storage - Gluckstadt
   102                  Sausalito Apartments
   103                  Shenandoah Village Apartments
   104                  Regency Apartments - Milwaukee
   105                  Staples Plaza
   106                  Central Park Plaza
   107                  Kingston Corners Plaza
   108                  Villa Rosa
   109                  2230 Point Boulevard
   111                  CT Storage Portfolio
   112                  Harmony Plaza
   113                  Home Depot Cold Spring
   114                  Shops at Woodmen Hills
   115                  Walgreens - Oklahoma City
   116                  Mary Crest Partners II
   119                  Shops at Shawnee Ridge
   120                  Kent Plaza Apartments
   121                  Sagewood Center II
   122                  Dakota Village Shopping Center
   123                  9320 Wilshire Boulevard Office
   124                  Park Lane Apartments
   125                  Hotel Casablanca
   126                  Trinity Oaks Shopping Center
   127                  Orchard Square Apartments
   129                  Falls Creek Plaza
   130                  Lee's Drilling Self Storage
   131                  Fig Leaf Plaza
   132                  Shoppes of Olney II
   133                  Southland Plaza
   134                  Duane Heights Apartments
   135                  GEM City Manufactured Housing Community
   136                  Village Shoppes at Winter Park
   137                  Montgomery Plaza Apartments
   138                  Handi Self Storage
   139                  Eden Rock Apartments
   140                  Tucson Marketplace
   141                  7500 Santa Fe Retail Center
   142                  Laguna Canyon
   143                  Townhomes Mobile Home Park
   144                  576 Riverside Drive
   145                  Georgian Oaks/Georgian Village Apartments
   146                  Park Run Building
   147                  Riverside Apartments
   148                  Union Town Center
   149                  Yakima Triangle Center
   150                  Diamond Court Apartments
   151                  Cambridge West Apartments
   152                  Clear Creek Crossing
   153                  Summit Ridge
   154                  Korea Town Plaza Shopping Center
   155                  Panorama Self Storage
   156                  Stuart Place Apartments
   157                  Marshall Wells Retail
   158                  Roxboro Shops
   159                  Cookson Mobile Home Park
   160                  Plaza West Apartments
   161                  Parker Exchange Shopping Center
   162                  Prairie Village of Grimes I
   163                  Sunset Gardens Mobile Home Park
   164                  Falconer Village
   165                  Evergreen Manor of Waukee
   166                  Silverwood Apartments

<CAPTION>
    #      Address
---------------------------------------------------------------------------------------------------------------------------------
<S>       <C>
   1a     601 Southeast Wyoming Boulevard
   1b     4155 Yellowstone Highway
   1c     1770 East Red Cliffs Drive
   1d     351 Three Rivers Drive
    2     One North Central Avenue
    3     4101 Double Creek Crossing Drive
    4     13255 Rosedale Hill Avenue
    7     540 Buckingham Road
    8     2861 Franklin Drive
    9     2701 Franklin Drive
   10     14600 Marsh Lane
   12     2001 M Street, Northwest
   13     1365 and 1370 Saint Nicholas Avenue, 111 Wadsworth Avenue and 260 Audubon Avenue
   14     102 North End Avenue
   16     7324 Skillman Street
   17     4220 Esters Road
   18     5704 Spring Valley Road
   21     2500-2540 North Main Street
   22     4545 Kingwood Drive
   23     3637-3755 Thousand Oaks Boulevard
   25     7616-7725 Voice of America Drive
   28     101 East 26th Street
   29     1920 Santa Monica Boulevard
   30     1 Columbus Center
   31     7400 West Arrowhead Clubhouse Drive
   34     1370 and 1390 Decision Street and 1330, 1340 and 1350 Specialty Drive
   35     1300 Cross Creek Drive
   36     1650 Richmond Avenue
   38     2600 Campus Drive and 2655-2675 Crescent Drive
   40     14925 Lighthouse Road
   41     12260-12370 West Sunrise Boulevard
   42     201 Kingstowne Drive
   44     7601, 7605, 7609 and 7615 East Pinnacle Peak Road
   45     333 Gellert Boulevard
   46     299 Madison Avenue
   47     5424 Forest Drive
   48     2696 South Colorado Boulevard and 4201 East Yale Avenue
   49     15703-15785 Southwest 56th Street
   50     2300 Lohman's Crossing Road
   51     570 El Dorado
   53     70920-71340 Van Dyke Road (M-53)
   56     7304 Calibre Park Drive
   57     2113 Bromley Park Drive
   58     3630 Brennan Boulevard
   59     2430 Cromwell Circle
   60     12201-12215 Victory Boulevard
   61     9199 Sprague Road
   62     9601 Montgomery Road
   64     13035 Windfern Road
   65     41934 North Carolina Highway 12
   66     51 Tala Place Drive, Southwest
   67a    7401 Rainier Avenue South
   67b    7325 Rainier Avenue South
   67c    7900 Rainier Avenue South
   67d    5231 39th Avenue South
   67e    5205 39th Avenue South
   69     9236 Church Road
   70     1199 North Terry Steet
   71     8916 Datapoint Drive
   72     3800 Spring Valley
   74     4500 Montevallo Road
   75     4451 Love Lane
   76     220 Market Avenue South
   78     1602 South Grandview Avenue
   79     7325 Goldenpointe Boulevard
   80     10870 and 10890 South Eastern Avenue
   81     950 Southwood Oaks Lane
   83     14833 Marsh Lane
   84     980 Camino De La Reina
   85     1344 Cherrybottom Road
   87     401 East Capitol Street
   88     14029 Woodward Avenue
   89     13939 Livernois Avenue
   90     3218 State Route 82
   91     910 Southeast 17th Street
   92     10370 Hemet Street
   93     1705 and 1717 West University Drive
   95     765 and 899 Logan Street
   98     2001 Jenkins Road
   100    1801 South Dairy Ashford Road
  101a    426 Christine Drive
  101b    122 Yandell Road
   102    16250 Imperial Valley Drive
   103    1400 Shady Lane
   104    10157-10291 West Fond Du Lac Avenue
   105    8168 Elliott Road
   106    1435 North Central Expressway
   107    27089-27099 Bagley Road
   108    7850 West Sunset Boulevard
   109    2230 Point Boulevard
   111    176 Windsorville Road, 25 Kingsbury Avenue, 73 West Street, 35 Hockanum Boulevard
   112    7102 State Road 52
   113    415 Crossroads Boulevard
   114    7376 McLaughlin Road
   115    2100 West Britton Road
   116    111-125 Corporate Park Drive
   119    3320 Lawrenceville-Suwanee Road
   120    1641-1675 Franklin Avenue
   121    10146 West San Juan Way
   122    10027 West Remington Avenue
   123    9320 Wilshire Boulevard
   124    1610 Waybridge Lane
   125    147 West 43rd Street
   126    4043 Trinity Mills Road
   127    1510-1520 West Kingsley Road
   129    833-851 Lexington-Springmill Road
   130    149 East Gordon Lane
   131    6240-6400 North Figarden Drive
   132    3215 Spartan Road
   133    2576-2584 South Main Street
   134    2271 Duane Street
   135    2705 Dryden Road
   136    933 North Orlando Avenue
   137    116, 118 and 120 East Montgomery Avenue
   138    540 West Avenue L
   139    1911 East Southmore
   140    7955 East Broadway Boulevard
   141    7500 South Santa Fe Avenue
   142    2133-2147 Laguna Canyon Road
   143    3811 North 27th Avenue
   144    576, 584 and 592 Riverside Drive
   145    2200 Atlanta Road & 1731 Sams Street
   146    10181 Park Run Drive
   147    1600 Riverside Drive
   148    3472 Research Parkway
   149    1214-1230 South First Street
   150    324 East Diamond Avenue
   151    3600-3602 Rainbow Boulevard
   152    4005-4019 South Old State Road 37
   153    982 Summit Ridge Drive
   154    10544 Walnut Street
   155    14647 Arminta Street
   156    110 Legion Way South East
   157    1420 Northwest Lovejoy Street
   158    1019-1021 US Highway 501
   159    1011 FM 1489
   160    3420 West Rose Lane
   161    2601-2629 South Parker Road
   162    317 South Jacob Street
   163    Maquoit Road
   164    304 East Elmwood Avenue
   165    170 Evergreen Drive
   166    2507 South 87th Avenue East

<CAPTION>
                                                                                                   Net
                                                                                   Mortgage     Mortgage
                                                                                   Rate at       Rate at     Original
   #     City                                State            Zip Code             Cut-Off       Cut-off      Balance
------------------------------------------------------------------------------------------------------------------------
<S>     <C>                                   <C>              <C>                 <C>          <C>         <C>
  1a    Casper                                 WY              82609               5.080%       5.0484%     $41,900,000
  1b    Pocatello                              ID              83202               5.080%       5.0484%     $28,250,000
  1c    St George                              UT              84790               5.080%       5.0484%     $26,850,000
  1d    Kelso                                  WA              98626               5.080%       5.0484%     $23,000,000
   2    Phoenix                                AZ              85004               5.149%       5.1174%     $54,500,000
   3    Charlotte                              NC              28269               4.960%       4.9284%     $31,500,000
   4    Charlotte                              NC              28078               4.960%       4.9284%     $21,800,000
   7    Richardson                             TX              75081               5.373%       5.3414%     $18,000,000
   8    Mesquite                               TX              75150               5.373%       5.3414%     $10,880,000
   9    Mesquite                               TX              75150               5.373%       5.3414%     $10,060,000
  10    Addison                                TX              75001               5.373%       5.3414%      $8,480,000
  12    Washington                             DC              20036               5.249%       5.2174%     $44,500,000
  13    New York                               NY              10033               4.967%       4.9354%     $38,000,000
  14    New York                               NY              10282               5.440%       5.4084%     $37,830,000
  16    Dallas                                 TX              75231               5.345%       5.3134%     $15,740,000
  17    Irving                                 TX              75038               5.345%       5.3134%      $7,400,000
  18    Dallas                                 TX              75240               5.345%       5.3134%      $7,120,000
  21    Walnut Creek                           CA              94597               5.160%       5.1284%     $19,900,000
  22    Kingwood                               TX              77345               5.200%       5.1684%     $19,500,000
  23    Thousand Oaks                          CA              91362               5.185%       5.1534%     $19,000,000
  25    West Chester                           OH              45069               5.190%       5.1584%     $17,200,000
  28    New York                               NY              10010               5.690%       5.6584%     $16,000,000
  29    Santa Monica                           CA              90404               5.730%       5.6984%     $15,675,000
  30    Virginia Beach                         VA              23462               5.310%       5.2184%     $15,500,000
  31    Glendale                               AZ              85308               4.882%       4.8504%     $15,100,000
  34    Vista                                  CA              92083               5.540%       5.5084%     $13,800,000
  35    Brunswick                              OH              44212               5.070%       5.0084%     $13,280,000
  36    Staten Island                          NY              10314               5.335%       5.3034%     $12,500,000
  38    Lafayette                              CO              80026               5.900%       5.8684%     $11,600,000
  40    Naples                                 FL              34119               5.300%       5.2684%     $11,000,000
  41    Plantation                             FL              33323               5.330%       5.2984%     $10,500,000
  42    Newport News                           VA              23606               5.450%       5.4184%     $10,250,000
  44    Scottsdale                             AZ              85255               5.430%       5.3984%     $10,000,000
  45    Daly City                              CA              94015               5.350%       5.3184%      $9,600,000
  46    New York                               NY              10017               5.990%       5.9584%      $9,550,000
  47    Columbia                               SC              29206               6.000%       5.9684%      $9,360,000
  48    Denver                                 CO              80222               5.520%       5.4884%      $9,150,000
  49    Miami                                  FL              33193               4.940%       4.9084%      $8,937,500
  50    Lakeway                                TX              78734               5.460%       5.4284%      $8,700,000
  51    Houston                                TX              77598               5.800%       5.7684%      $8,700,000
  53    Bruce Township                         MI              48065               5.770%       5.7384%      $8,560,000
  56    Durham                                 NC              27707               4.930%       4.8984%      $8,200,000
  57    Winston-Salem                          NC              27103               5.220%       5.1884%      $8,000,000
  58    Amarillo                               TX              79121               5.670%       5.6384%      $8,000,000
  59    Austin                                 TX              78741               5.264%       5.2324%      $7,935,000
  60    North Hollywood                        CA              91606               6.500%       6.4684%      $7,550,000
  61    North Royalton                         OH              44133               5.840%       5.8084%      $7,200,000
  62    Houston                                TX              77088               5.380%       5.3484%      $7,152,000
  64    Houston                                TX              77064               5.550%       5.5184%      $7,000,000
  65    Avon                                   NC              27915               5.310%       5.2784%      $6,800,000
  66    Concord                                NC              28026               5.200%       5.1684%      $6,700,000
  67a   Seattle                                WA              98118               6.290%       6.2584%      $2,000,000
  67b   Seattle                                WA              98118               6.290%       6.2584%      $1,650,000
  67c   Seattle                                WA              98118               6.290%       6.2584%      $1,250,000
  67d   Seattle                                WA              98118               6.290%       6.2584%      $1,025,000
  67e   Seattle                                WA              98118               6.290%       6.2584%        $775,000
  69    Dallas                                 TX              75231               5.264%       5.2324%      $6,560,000
  70    Eugene                                 OR              97402               5.250%       5.2184%      $6,500,000
  71    San Antonio                            TX              78229               5.590%       5.5584%      $6,400,000
  72    Addison                                TX              75001               5.630%       5.5984%      $6,400,000
  74    Birmingham                             AL              35213               5.300%       5.2684%      $6,100,000
  75    Beavercreek                            OH              45430               5.200%       5.1684%      $6,050,000
  76    Canton                                 OH              44702               4.930%       4.8984%      $6,000,000
  78    Papillion                              NE              68046               5.500%       5.4684%      $6,000,000
  79    Orlando                                FL              32807               6.470%       6.4384%      $5,950,000
  80    Henderson                              NV              89052               6.000%       5.9684%      $5,860,000
  81    Charlotte                              NC              28212               5.200%       5.1684%      $5,800,000
  83    Farmers Branch                         TX              75234               5.400%       5.3684%      $5,560,000
  84    San Diego                              CA              92108               4.980%       4.9484%      $5,500,000
  85    Gahanna                                OH              43230               5.120%       5.0584%      $5,500,000
  87    Jackson                                MS              39201               5.500%       5.4684%      $5,400,000
  88    Highland Park                          MI              48203               6.220%       6.1884%      $3,485,000
  89    Detroit                                MI              48238               5.910%       5.8784%      $1,615,000
  90    Mantua Township                        OH              44255               5.310%       5.2784%      $4,900,000
  91    Fort Lauderdale                        FL              33316               5.700%       5.6684%      $4,850,000
  92    Riverside                              CA              92503               5.430%       5.3984%      $4,700,000
  93    McKinney                               TX              75070               5.310%       5.2784%      $4,600,000
  95    Denver                                 CO              80203               5.390%       5.3584%      $4,400,000
  98    Pasadena                               TX              77506               5.500%       5.4684%      $4,260,000
  100   Houston                                TX              77077               5.770%       5.7384%      $4,143,750
 101a   Ridgeland                              MS              39157               6.160%       6.1284%      $2,200,000
 101b   Canton                                 MS              39046               6.160%       6.1284%      $1,900,000
  102   Houston                                TX              77060               6.070%       6.0384%      $4,100,000
  103   Bedford                                TX              76021               5.990%       5.9584%      $3,920,000
  104   Milwaukee                              WI              53224               5.860%       5.8284%      $3,850,000
  105   Easton                                 MD              21601               5.380%       5.3484%      $3,750,000
  106   McKinney                               TX              75070               5.420%       5.3884%      $3,690,000
  107   Olmsted Falls                          OH              44138               5.490%       5.4584%      $3,650,000
  108   Los Angeles                            CA              90046               5.340%       5.3084%      $3,500,000
  109   Elgin                                  IL              60123               5.370%       5.2584%      $3,400,000
  111   Ellington, Tolland, Vernon, Vernon     CT    06029, 06084, 06066, 06066    5.650%       5.6184%      $3,250,000
  112   Port Richey                            FL              28560               5.320%       5.2884%      $3,200,000
  113   Cold Spring                            KY              41076               5.810%       5.7784%      $3,150,000
  114   Falcon                                 CO              80831               5.750%       5.7184%      $3,150,000
  115   The Village                            OK              73120               5.670%       5.6384%      $3,070,000
  116   Henderson                              NV              89074               5.300%       5.2684%      $3,050,000
  119   Suwanee                                GA              30024               5.870%       5.8384%      $3,000,000
  120   Kent                                   OH              44240               5.220%       5.1884%      $2,975,000
  121   Littleton                              CO              80127               5.500%       5.4684%      $2,875,000
  122   Littleton                              CO              80127               5.440%       5.4084%      $2,850,000
  123   Beverly Hills                          CA              90212               5.430%       5.3984%      $2,800,000
  124   Charlotte                              NC              28210               5.200%       5.1684%      $2,800,000
  125   New York                               NY              10036               6.000%       5.9684%      $2,750,000
  126   Dallas                                 TX              75287               5.920%       5.8884%      $2,600,000
  127   Garland                                TX              75041               6.150%       6.1184%      $2,520,000
  129   Ontario                                OH              44862               5.560%       5.5284%      $2,350,000
  130   Murray                                 UT              84107               6.000%       5.9684%      $2,082,500
  131   Fresno                                 CA              93722               5.550%       5.5184%      $2,065,000
  132   Olney                                  MD              20832               5.220%       5.1884%      $2,000,000
  133   Adrian                                 MI              49221               5.640%       5.6084%      $2,000,000
  134   Los Angeles                            CA              90039               5.670%       5.6384%      $2,000,000
  135   Moraine                                OH              45439               5.550%       5.5184%      $2,000,000
  136   Winter Park                            FL              32789               5.620%       5.5884%      $1,950,000
  137   Ardmore                                PA              19003               5.900%       5.8684%      $1,950,000
  138   Calimesa                               CA              92320               5.950%       5.9184%      $1,875,000
  139   Pasadena                               TX              77502               5.740%       5.7084%      $1,860,000
  140   Tucson                                 AZ              85710               5.560%       5.5284%      $1,840,000
  141   Oklahoma City                          OK              73139               5.370%       5.3384%      $1,800,000
  142   Laguna Beach                           CA              92651               5.740%       5.7084%      $1,800,000
  143   Phoenix                                AZ              85017               5.410%       5.3784%      $1,800,000
  144   Augusta                                ME               4330               5.850%       5.8184%      $1,800,000
  145   Smyrna, Marietta                       GA           30080, 30082           7.010%       6.9784%      $1,920,000
  146   Las Vegas                              NV              89145               5.500%       5.4684%      $1,763,500
  147   Monroe                                 LA              71201               6.420%       6.3884%      $1,720,000
  148   Colorado Springs                       CO              80920               5.900%       5.8684%      $1,650,000
  149   Yakima                                 WA              98901               5.410%       5.3784%      $1,600,000
  150   Gaithersburg                           MD              20877               6.500%       6.4684%      $1,600,000
  151   Kansas City                            KS              66103               5.740%       5.7084%      $1,575,000
  152   Bloomington                            IN              47403               5.460%       5.4284%      $1,500,000
  153   Brandon                                FL              33511               5.950%       5.9184%      $1,400,000
  154   Dallas                                 TX              75243               5.830%       5.7984%      $1,368,750
  155   Panorama City                          CA              91402               5.950%       5.9184%      $1,300,000
  156   Olympia                                WA              98501               5.480%       5.4484%      $1,200,000
  157   Portland                               OR              97209               6.390%       6.3584%      $1,200,000
  158   Roxboro                                NC              27573               5.690%       5.6284%      $1,000,000
  159   Brookshire                             TX              77423               5.590%       5.5584%      $1,000,000
  160   Phoenix                                AZ              85017               6.020%       5.9884%        $960,000
  161   Aurora                                 CO              80014               6.190%       6.1584%        $950,000
  162   Grimes                                 IA              50111               5.850%       5.8184%        $915,000
  163   Brunswick                              ME               4011               6.100%       6.0684%        $850,000
  164   Falconer                               NY              14733               5.540%       5.5084%        $720,000
  165   Waukee                                 IA              50263               5.850%       5.8184%        $700,000
  166   Tulsa                                  OK              74129               6.170%       6.1384%        $670,000

<CAPTION>
                               Remaining
                                Term to                                            Original              Remaining
               Cut-Off          Maturity        Maturity                         Amortization          Amortization
    #        Balance (1)        (1) (2)           Date           ARD (3)             Term                Term (1)
-------------------------------------------------------------------------------------------------------------------------
<S>              <C>                     <C>       <C>  <C>      <C>                               <C>                   <C>
   1a            $41,750,649             81        12/5/2011     N/A                               360                   357
   1b            $28,149,304             81        12/5/2011     N/A                               360                   357
   1c            $26,754,294             81        12/5/2011     N/A                               360                   357
   1d            $22,918,017             81        12/5/2011     N/A                               360                   357
    2            $54,500,000            118        1/11/2015     N/A                     Interest Only         Interest Only
    3            $31,500,000             56       11/11/2009     N/A                     Interest Only         Interest Only
    4            $21,800,000             56       11/11/2009     N/A                     Interest Only         Interest Only
    7            $18,000,000            117       12/11/2014     N/A                               360                   360
    8            $10,880,000            117       12/11/2014     N/A                               360                   360
    9            $10,060,000            117       12/11/2014     N/A                               360                   360
   10             $8,480,000            117       12/11/2014     N/A                               360                   360
   12            $44,500,000            117       12/11/2014     N/A                               360                   360
   13            $38,000,000            116       11/11/2014     N/A                     Interest Only         Interest Only
   14            $37,830,000            118        1/11/2015     N/A                               360                   360
   16            $15,740,000            105       12/11/2013     N/A                               360                   360
   17             $7,400,000            105       12/11/2013     N/A                               360                   360
   18             $7,120,000            105       12/11/2013     N/A                               360                   360
   21            $19,830,110             72        3/11/2011     N/A                               360                   357
   22            $19,409,150            118        1/11/2015     N/A                               360                   356
   23            $18,911,233            116       11/11/2014     N/A                               360                   356
   25            $17,200,000            117       12/11/2014     N/A                               360                   360
   28            $15,891,782            117       12/11/2014     N/A                               240                   237
   29            $15,625,261            118        1/11/2015     N/A                               300                   298
   30            $15,500,000            117       12/11/2014     N/A                               360                   360
   31            $15,100,000             57       12/11/2009     N/A                               360                   360
   34            $13,754,853            117       12/11/2014     N/A                               360                   357
   35            $13,280,000            115       10/11/2014     N/A                               360                   360
   36            $12,500,000            116       11/11/2014     N/A                               360                   360
   38            $11,510,090            112        7/11/2014     N/A                               360                   352
   40            $10,949,693            116       11/11/2014     N/A                               360                   356
   41            $10,452,247            117       12/11/2014     N/A                               360                   356
   42            $10,204,415            116       11/11/2014     N/A                               360                   356
   44             $9,945,604            115       10/11/2014     N/A                               360                   355
   45             $9,600,000            116       11/11/2014     N/A                               360                   360
   46             $9,475,624            117       12/11/2014     N/A                               216                   213
   47             $9,360,000            116       11/11/2014     N/A                               360                   360
   48             $9,128,605            118        1/11/2015     N/A                               360                   358
   49             $8,876,574            117       12/11/2014     N/A                               300                   296
   50             $8,700,000            118        1/11/2015     N/A                               360                   360
   51             $8,631,131             76        7/11/2011     N/A                               360                   352
   53             $8,516,475            115       10/11/2014     N/A                               360                   355
   56             $8,200,000            115       10/11/2014     N/A                               360                   360
   57             $7,962,866            115       10/11/2014     N/A                               360                   356
   58             $7,958,400             67       10/11/2010     N/A                               360                   355
   59             $7,935,000             81       12/11/2011     N/A                               360                   360
   60             $7,353,880             91       10/11/2032     10/11/2012                        360                   331
   61             $7,156,328            114        9/11/2014     N/A                               360                   354
   62             $7,127,890            119        2/11/2015     N/A                               360                   357
   64             $6,962,814            115       10/11/2014     N/A                               360                   355
   65             $6,776,775            117       12/11/2014     N/A                               360                   357
   66             $6,661,877            115       10/11/2014     N/A                               360                   355
   67a            $1,983,587            114        9/11/2014     N/A                               300                   294
   67b            $1,636,460            114        9/11/2014     N/A                               300                   294
   67c            $1,239,742            114        9/11/2014     N/A                               300                   294
   67d            $1,016,589            114        9/11/2014     N/A                               300                   294
   67e              $768,640            114        9/11/2014     N/A                               300                   294
   69             $6,560,000             81       12/11/2011     N/A                               360                   360
   70             $6,484,114            118        1/11/2015     N/A                               360                   358
   71             $6,353,158            113        8/11/2014     N/A                               360                   353
   72             $6,340,406             51        6/11/2009     N/A                               360                   351
   74             $6,100,000            118        1/11/2015     N/A                               360                   360
   75             $6,050,000            115       10/11/2014     N/A                               360                   360
   76             $6,000,000             55       10/11/2009     N/A                     Interest Only         Interest Only
   78             $5,973,565            115       10/11/2014     N/A                               360                   356
   79             $5,909,215            112        7/11/2014     N/A                               360                   352
   80             $5,842,428            117       12/11/2014     N/A                               360                   357
   81             $5,766,998            114        9/11/2014     N/A                               360                   355
   83             $5,535,041            117       12/11/2014     N/A                               360                   356
   84             $5,500,000            117       12/11/2014     N/A                               360                   360
   85             $5,460,257            117       12/11/2014     N/A                               240                   237
   87             $5,376,208            116       11/11/2014     N/A                               360                   356
   88             $3,381,698            106        1/11/2014     N/A                               240                   226
   89             $1,568,777            107        2/11/2014     N/A                               240                   227
   90             $4,872,711             80       11/11/2011     N/A                               360                   355
   91             $4,824,992            114        9/11/2014     N/A                               360                   355
   92             $4,684,303            117       12/11/2014     N/A                               360                   357
   93             $4,588,868            118        1/11/2015     N/A                               360                   358
   95             $4,380,212            116       11/11/2014     N/A                               360                   356
   98             $4,260,000             57       12/11/2009     N/A                               300                   300
   100            $4,134,450            118        1/11/2015     N/A                               360                   358
  101a            $2,193,416            119        2/11/2015     N/A                               300                   298
  101b            $1,894,314            119        2/11/2015     N/A                               300                   298
   102            $4,065,155            111        6/11/2014     N/A                               360                   351
   103            $3,908,223             81       12/11/2011     N/A                               360                   357
   104            $3,850,000            112        7/11/2014     N/A                               336                   336
   105            $3,733,103            116       11/11/2034     11/11/2014                        360                   356
   106            $3,673,497            116       11/11/2014     N/A                               360                   356
   107            $3,633,888            117       12/11/2014     N/A                               360                   356
   108            $3,488,113            118        1/11/2015     N/A                               360                   357
   109            $3,388,517            117       12/11/2014     N/A                               360                   357
   111            $3,239,575            118        1/11/2015     N/A                               300                   298
   112            $3,177,404            117       12/11/2014     N/A                               240                   237
   113            $3,150,000            118        1/11/2015     N/A                               360                   360
   114            $3,133,919            115       10/11/2014     N/A                               360                   355
   115            $3,062,996            119        2/11/2035     2/11/2015                         360                   358
   116            $3,050,000            117       12/11/2014     N/A                               336                   336
   119            $2,980,133            237       12/11/2024     N/A                               240                   237
   120            $2,975,000            115       10/11/2014     N/A                               360                   360
   121            $2,865,523            117       12/11/2014     N/A                               360                   357
   122            $2,850,000            118        1/11/2015     N/A                               360                   360
   123            $2,787,501            116       11/11/2014     N/A                               360                   356
   124            $2,784,068            114        9/11/2014     N/A                               360                   355
   125            $2,724,189            117       12/11/2014     N/A                               192                   189
   126            $2,531,786             94        1/11/2013     N/A                               360                   334
   127            $2,467,436            105       12/11/2013     N/A                               300                   285
   129            $2,339,762            116       11/11/2014     N/A                               360                   356
   130            $2,074,151            116       11/11/2014     N/A                               360                   356
   131            $2,055,987            116       11/11/2014     N/A                               360                   356
   132            $2,000,000            117       12/11/2014     N/A                               360                   360
   133            $1,995,415            118        1/11/2015     N/A                               360                   358
   134            $1,993,615            117       12/11/2014     N/A                               360                   357
   135            $1,991,270            116       11/11/2014     N/A                               360                   356
   136            $1,939,597            114        9/11/2014     N/A                               357                   352
   137            $1,932,798            236       11/11/2024     N/A                               240                   236
   138            $1,864,018            116       11/11/2014     N/A                               300                   296
   139            $1,854,140             57       12/11/2009     N/A                               360                   357
   140            $1,834,003            118        1/11/2015     N/A                               360                   357
   141            $1,800,000            117       12/11/2014     N/A                               360                   360
   142            $1,794,329            117       12/11/2014     N/A                               360                   357
   143            $1,791,935            118        1/11/2015     N/A                               360                   356
   144            $1,789,296            117       12/11/2014     N/A                               300                   296
   145            $1,763,033             40         7/1/2008     N/A                               360                   280
   146            $1,754,039            115       10/11/2014     N/A                               360                   355
   147            $1,710,716            114        9/11/2014     N/A                               360                   354
   148            $1,640,110            114        9/11/2014     N/A                               360                   354
   149            $1,594,636            118        1/11/2015     N/A                               360                   357
   150            $1,585,397            113        8/11/2014     N/A                               300                   293
   151            $1,553,990            107        2/11/2014     N/A                               360                   347
   152            $1,496,458            118        1/11/2015     N/A                               360                   358
   153            $1,391,800            116       11/11/2014     N/A                               300                   296
   154            $1,358,744            115       10/11/2014     N/A                               300                   295
   155            $1,296,065            117       12/11/2014     N/A                               360                   357
   156            $1,197,176             58        1/11/2010     N/A                               360                   358
   157            $1,193,483            114        9/11/2014     N/A                               360                   354
   158              $996,820            117       12/11/2034     12/11/2014                        360                   357
   159              $996,759            118        1/11/2015     N/A                               360                   357
   160              $946,538            110        5/11/2014     N/A                               300                   290
   161              $942,078            114        9/11/2014     N/A                               300                   294
   162              $909,559            116       11/11/2014     N/A                               300                   296
   163              $847,499            117       12/11/2014     N/A                               360                   357
   164              $715,512            116       11/11/2014     N/A                               300                   296
   165              $695,837            116       11/11/2014     N/A                               300                   296
   166              $664,395            114        9/11/2014     N/A                               300                   294

<CAPTION>
                                                               Master
                  Monthly                   Sq.              Servicing                      ARD Loan
    #           Payment (4)            Ft./Rooms/Pads         Fee Rate          Due Date       (3)
---------------------------------------------------------------------------------------------------------
<S>                <C>                            <C>              <C>          <C>          <C>
   1a              $226,981                       493,482          0.0300%             5     N/A
   1b              $153,036                       538,772          0.0300%             5     N/A
   1c              $145,452                       385,643          0.0300%             5     N/A
   1d              $124,596                       427,954          0.0300%             5     N/A
    2              $237,098                       409,889          0.0300%            11     N/A
    3              $132,008                           492          0.0300%            11     N/A
    4               $91,358                           328          0.0300%            11     N/A
    7              $100,772                           312          0.0300%            11     N/A
    8               $60,911                           336          0.0300%            11     N/A
    9               $56,321                           318          0.0300%            11     N/A
   10               $47,475                           212          0.0300%            11     N/A
   12              $245,703                       209,645          0.0300%            11     N/A
   13              $159,473                           960          0.0300%            11     N/A
   14              $213,373                       158,719          0.0300%            11     N/A
   16               $87,845                           405          0.0300%            11     N/A
   17               $41,300                           232          0.0300%            11     N/A
   18               $39,737                           208          0.0300%            11     N/A
   21              $108,782                       208,797          0.0300%            11     N/A
   22              $107,077                           404          0.0300%            11     N/A
   23              $104,155                        77,189          0.0300%            11     N/A
   25               $94,341                       106,127          0.0300%            11     N/A
   28              $111,786                            73          0.0300%            11     N/A
   29               $98,423                           123          0.0300%            11     N/A
   30               $86,169                       130,106          0.0900%            11     N/A
   31               $79,975                           248          0.0300%            11     N/A
   34               $78,702                       181,895          0.0300%            11     N/A
   35               $71,859                           312          0.0600%            11     N/A
   36               $69,685                        45,899          0.0300%            11     N/A
   38               $68,804                       132,000          0.0300%            11     N/A
   40               $61,084                           208          0.0300%            11     N/A
   41               $58,503                        57,200          0.0300%            11     N/A
   42               $57,877                           264          0.0300%            11     N/A
   44               $56,340                        41,870          0.0300%            11     N/A
   45               $53,608                        61,557          0.0300%            11     N/A
   46               $72,351                            60          0.0300%            11     N/A
   47               $56,118                       109,030          0.0300%            11     N/A
   48               $52,068                        92,792          0.0300%            11     N/A
   49               $51,936                        63,595          0.0300%            11     N/A
   50               $49,180                       102,796          0.0300%            11     N/A
   51               $51,048                       121,620          0.0300%            11     N/A
   53               $50,063                        93,631          0.0300%            11     N/A
   56               $43,669                           192          0.0300%            11     N/A
   57               $44,028                           198          0.0300%            11     N/A
   58               $46,300                           276          0.0300%            11     N/A
   59               $43,886                           238          0.0300%            11     N/A
   60               $47,721                       112,000          0.0300%            11     Yes
   61               $42,430                        94,668          0.0300%            11     N/A
   62               $40,071                           252          0.0300%            11     N/A
   64               $39,965                           240          0.0300%            11     N/A
   65               $37,803                        87,170          0.0300%            11     N/A
   66               $36,790                           128          0.0300%            11     N/A
   67a              $13,243                            62          0.0300%            11     N/A
   67b              $10,925                            50          0.0300%            11     N/A
   67c               $8,277                            48          0.0300%            11     N/A
   67d               $6,787                            30          0.0300%            11     N/A
   67e               $5,132                            22          0.0300%            11     N/A
   69               $36,281                           208          0.0300%            11     N/A
   70               $35,893                           277          0.0300%            11     N/A
   71               $36,701                           217          0.0300%            11     N/A
   72               $36,862                           168          0.0300%            11     N/A
   74               $33,874                        64,851          0.0300%            11     N/A
   75               $33,221                           108          0.0300%            11     N/A
   76               $24,992                       131,575          0.0300%            11     N/A
   78               $34,067                           112          0.0300%            11     N/A
   79               $37,491                           120          0.0300%            11     N/A
   80               $35,134                        30,000          0.0300%            11     N/A
   81               $31,848                           144          0.0300%            11     N/A
   83               $31,221                           136          0.0300%            11     N/A
   84               $29,458                        23,503          0.0300%            11     N/A
   85               $36,663                        58,723          0.0600%            11     N/A
   87               $30,661                        95,061          0.0300%            11     N/A
   88               $25,412                        42,238          0.0300%            11     N/A
   89               $11,487                        11,520          0.0300%            11     N/A
   90               $27,240                           236          0.0300%            11     N/A
   91               $28,149                        30,822          0.0300%            11     N/A
   92               $26,480                        47,932          0.0300%            11     N/A
   93               $25,573                        52,838          0.0300%            11     N/A
   95               $24,680                        57,667          0.0300%            11     N/A
   98               $26,160                           251          0.0300%            11     N/A
   100              $24,234                        79,431          0.0300%            11     N/A
  101a              $14,391                        51,200          0.0300%            11     N/A
  101b              $12,428                        76,430          0.0300%            11     N/A
   102              $24,766                           190          0.0300%            11     N/A
   103              $23,477                           136          0.0300%            11     N/A
   104              $23,343                            99          0.0300%            11     N/A
   105              $21,011                        33,912          0.0300%            11     Yes
   106              $20,767                        49,929          0.0300%            11     N/A
   107              $20,701                        57,275          0.0300%            11     N/A
   108              $19,523                            40          0.0300%            11     N/A
   109              $19,028                        36,472          0.1100%            11     N/A
   111              $20,250                        83,335          0.0300%            11     N/A
   112              $21,688                        82,820          0.0300%            11     N/A
   113              $18,503                       129,730          0.0300%            11     N/A
   114              $18,383                        27,702          0.0300%            11     N/A
   115              $17,760                        13,905          0.0300%            11     Yes
   116              $17,437                        36,657          0.0300%            11     N/A
   119              $21,269                        18,360          0.0300%            11     N/A
   120              $16,373                           159          0.0300%            11     N/A
   121              $16,324                        20,528          0.0300%            11     N/A
   122              $16,075                        17,097          0.0300%            11     N/A
   123              $15,775                        49,006          0.0300%            11     N/A
   124              $15,375                            60          0.0300%            11     N/A
   125              $22,315                            42          0.0300%            11     N/A
   126              $15,455                        28,164          0.0300%            11     N/A
   127              $16,468                           126          0.0300%            11     N/A
   129              $13,432                        13,400          0.0300%            11     N/A
   130              $12,486                        74,644          0.0300%            11     N/A
   131              $11,790                        13,068          0.0300%            11     N/A
   132              $11,007                         8,995          0.0300%            11     N/A
   133              $11,532                        55,137          0.0300%            11     N/A
   134              $11,570                            14          0.0300%            11     N/A
   135              $11,419                           145          0.0300%            11     N/A
   136              $11,256                        10,703          0.0300%            11     N/A
   137              $13,858                            65          0.0300%            11     N/A
   138              $12,023                        41,430          0.0300%            11     N/A
   139              $10,843                           115          0.0300%            11     N/A
   140              $10,517                        16,180          0.0300%            11     N/A
   141              $10,074                        12,139          0.0300%            11     N/A
   142              $10,493                        16,768          0.0300%            11     N/A
   143              $10,119                            69          0.0300%            11     N/A
   144              $11,433                            60          0.0300%            11     N/A
   145              $12,921 (13)                      108          0.0300%             1     N/A
   146              $10,013                        10,160          0.0300%            11     N/A
   147              $10,781                            68          0.0300%            11     N/A
   148               $9,787                        10,800          0.0300%            11     N/A
   149               $8,994                        20,350          0.0300%            11     N/A
   150              $10,803                            26          0.0300%            11     N/A
   151               $9,181                            49          0.0300%            11     N/A
   152               $8,479                        11,916          0.0300%            11     N/A
   153               $8,977                            40          0.0300%            11     N/A
   154               $8,677                        19,617          0.0300%            11     N/A
   155               $7,752                        22,400          0.0300%            11     N/A
   156               $6,798                            36          0.0300%            11     N/A
   157               $7,498                         5,794          0.0300%            11     N/A
   158               $5,798                         8,273          0.0600%            11     Yes
   159               $5,734                            96          0.0300%            11     N/A
   160               $6,197                            28          0.0300%            11     N/A
   161               $6,232                        14,080          0.0300%            11     N/A
   162               $5,812                            40          0.0300%            11     N/A
   163               $5,151                            59          0.0300%            11     N/A
   164               $4,439                            59          0.0300%            11     N/A
   165               $4,446                            32          0.0300%            11     N/A
   166               $4,387                            40          0.0300%            11     N/A

<CAPTION>

                                                                                          Letter
          Defeasance         Earthquake         Environmental                               of
    #        (5)             Insurance            Insurance           Fee/Leasehold       Credit
------------------------------------------------------------------------------------------------------
<S>       <C>               <C>                <C>                   <C>                   <C>
   1a     Yes               N/A                No                    Fee                   N/A
   1b     Yes               N/A                No                    Fee/Leasehold         N/A
   1c     Yes               N/A                No                    Fee                   N/A
   1d     Yes               N/A                No                    Fee                   N/A
    2     Yes               N/A                No                    Leasehold             N/A
    3     Yes               N/A                No                    Fee                   N/A
    4     Yes               N/A                No                    Fee                   N/A
    7     Yes               N/A                No                    Fee                   N/A
    8     Yes               N/A                No                    Fee                   N/A
    9     Yes               N/A                No                    Fee                   N/A
   10     Yes               N/A                No                    Fee                   N/A
   12     Yes               N/A                No                    Fee                   N/A
   13     Yes               N/A                No                    Fee                   N/A
   14     Yes               N/A                No                    Leasehold             N/A
   16     Yes               N/A                No                    Fee                   N/A
   17     Yes               N/A                No                    Fee                   N/A
   18     Yes               N/A                No                    Fee                   N/A
   21     Yes               N/A                No                    Fee                   N/A
   22     Yes               N/A                No                    Fee                   N/A
   23     Yes               N/A                No                    Fee                   N/A
   25     Yes               N/A                No                    Fee                   N/A
   28     Yes               N/A                No                    Fee                   N/A
   29     Yes               N/A                No                    Fee                   N/A
   30     Yes               N/A                No                    Fee                   N/A
   31     Yes               N/A                No                    Fee                   N/A
   34     Yes               N/A                No                    Fee                   N/A
   35     Yes               N/A                No                    Fee                   N/A
   36     Yes               N/A                No                    Fee                   N/A
   38     No                N/A                No                    Fee                   N/A
   40     Yes               N/A                No                    Fee                   N/A
   41     Yes               N/A                No                    Fee                   N/A
   42     Yes               N/A                No                    Fee                   N/A
   44     Yes               N/A                No                    Fee                   N/A
   45     Yes               N/A                No                    Fee                   N/A
   46     Yes               N/A                No                    Leasehold             N/A
   47     Yes               N/A                No                    Fee                   N/A
   48     Yes               N/A                No                    Fee                   N/A
   49     Yes               N/A                No                    Fee                   N/A
   50     Yes               N/A                No                    Fee                   N/A
   51     Yes               N/A                No                    Fee                   N/A
   53     Yes               N/A                No                    Fee                   N/A
   56     Yes               N/A                No                    Fee                   N/A
   57     Yes               N/A                No                    Fee                   N/A
   58     Yes               N/A                No                    Fee                   N/A
   59     Yes               N/A                No                    Fee                   N/A
   60     Yes               N/A                No                    Fee                   Yes
   61     Yes               N/A                No                    Fee                   N/A
   62     Yes               N/A                No                    Fee                   N/A
   64     Yes               N/A                No                    Fee                   N/A
   65     Yes               N/A                No                    Fee                   N/A
   66     Yes               N/A                No                    Fee                   N/A
   67a    No                N/A                Yes                   Fee                   N/A
   67b    No                N/A                Yes                   Fee                   N/A
   67c    No                N/A                Yes                   Fee                   N/A
   67d    No                N/A                Yes                   Fee                   N/A
   67e    No                N/A                Yes                   Fee                   N/A
   69     Yes               N/A                No                    Fee                   N/A
   70     Yes               N/A                No                    Fee                   N/A
   71     Yes               N/A                No                    Fee                   N/A
   72     Yes               N/A                No                    Fee                   N/A
   74     Yes               N/A                No                    Fee                   N/A
   75     Yes               N/A                No                    Fee                   N/A
   76     Yes               N/A                No                    Fee                   N/A
   78     Yes               N/A                No                    Fee                   N/A
   79     Yes               N/A                No                    Fee                   N/A
   80     Yes               N/A                No                    Fee                   N/A
   81     Yes               N/A                No                    Fee                   N/A
   83     Yes               N/A                No                    Fee                   N/A
   84     Yes               N/A                No                    Fee                   N/A
   85     Yes               N/A                No                    Fee                   N/A
   87     Yes               N/A                No                    Fee                   N/A
   88     Yes               N/A                No                    Fee                   N/A
   89     Yes               N/A                No                    Fee                   N/A
   90     Yes               N/A                No                    Fee                   N/A
   91     Yes               N/A                No                    Fee                   N/A
   92     Yes               N/A                No                    Fee                   N/A
   93     Yes               N/A                No                    Fee                   N/A
   95     Yes               N/A                No                    Fee                   N/A
   98     Yes               N/A                No                    Fee                   N/A
   100    Yes               N/A                No                    Fee                   Yes
  101a    Yes               N/A                Yes                   Fee                   N/A
  101b    Yes               N/A                Yes                   Fee                   N/A
   102    Yes               N/A                No                    Fee                   N/A
   103    Yes               N/A                No                    Fee                   N/A
   104    Yes               N/A                No                    Fee                   N/A
   105    Yes               N/A                No                    Fee                   N/A
   106    Yes               N/A                No                    Fee                   N/A
   107    Yes               N/A                No                    Fee                   N/A
   108    Yes               N/A                Yes                   Fee                   N/A
   109    Yes               N/A                No                    Fee                   N/A
   111    Yes               N/A                Yes                   Fee                   N/A
   112    Yes               N/A                No                    Fee                   N/A
   113    Yes               N/A                No                    Fee                   N/A
   114    No                N/A                No                    Fee                   N/A
   115    Yes               N/A                No                    Fee                   N/A
   116    Yes               N/A                No                    Fee                   N/A
   119    Yes               N/A                No                    Fee                   N/A
   120    Yes               N/A                No                    Fee                   N/A
   121    Yes               N/A                No                    Fee                   N/A
   122    Yes               N/A                No                    Fee                   N/A
   123    Yes               N/A                No                    Leasehold             N/A
   124    Yes               N/A                No                    Fee                   N/A
   125    Yes               N/A                No                    Leasehold             N/A
   126    Yes               N/A                No                    Fee                   N/A
   127    Yes               N/A                Yes                   Fee                   N/A
   129    Yes               N/A                No                    Fee                   N/A
   130    Yes               N/A                Yes                   Fee                   N/A
   131    Yes               N/A                Yes                   Fee                   N/A
   132    Yes               N/A                No                    Fee                   N/A
   133    Yes               N/A                Yes                   Fee                   N/A
   134    Yes               N/A                Yes                   Fee                   N/A
   135    Yes               N/A                Yes                   Fee                   N/A
   136    Yes               N/A                No                    Fee                   N/A
   137    No                N/A                Yes                   Fee                   N/A
   138    Yes               N/A                Yes                   Fee                   N/A
   139    Yes               N/A                Yes                   Fee                   N/A
   140    Yes               N/A                No                    Fee                   N/A
   141    Yes               N/A                No                    Fee                   N/A
   142    Yes               N/A                Yes                   Fee                   N/A
   143    Yes               N/A                Yes                   Fee                   N/A
   144    Yes               N/A                No                    Fee                   N/A
   145    Yes               N/A                No                    Fee                   N/A
   146    Yes               N/A                No                    Fee                   N/A
   147    Yes               N/A                Yes                   Fee                   N/A
   148    No                N/A                No                    Fee                   N/A
   149    No                N/A                No                    Fee                   N/A
   150    Yes               N/A                Yes                   Fee                   N/A
   151    Yes               N/A                Yes                   Fee                   N/A
   152    Yes               N/A                Yes                   Fee                   N/A
   153    Yes               N/A                Yes                   Fee                   N/A
   154    Yes               N/A                Yes                   Fee                   N/A
   155    No                N/A                Yes                   Fee                   N/A
   156    Yes               N/A                Yes                   Fee                   N/A
   157    Yes               N/A                No                    Fee                   N/A
   158    Yes               N/A                Yes                   Fee                   N/A
   159    Yes               N/A                Yes                   Fee                   N/A
   160    No                N/A                Yes                   Fee                   N/A
   161    Yes               N/A                No                    Fee                   N/A
   162    Yes               N/A                Yes                   Fee                   N/A
   163    No                N/A                No                    Fee                   N/A
   164    Yes               N/A                Yes                   Fee                   N/A
   165    Yes               N/A                Yes                   Fee                   N/A
   166    Yes               N/A                Yes                   Fee                   N/A
</TABLE>

A     The Underlying Mortgage Loans secured by Bexley Creekside Apartments and
      Bexley Commons at Rosedale Apartments are cross-collateralized and
      cross-defaulted, respectively.

B     The Underlying Mortgage Loans secured by BP Sweetwater Ranch Apartments,
      BP Prescott Place II Apartments, BP Prescott Place I Apartments and BP
      Berkshire of Addison Apartments are cross-collateralized and
      cross-defaulted, respectively.

C     The Underlying Mortgage Loans secured by BP Huntington Lakes Apartments,
      BP Huntington Ridge Apartments and BP Berkshire Springs Apartments are
      cross-collateralized and cross-defaulted, respectively.

D     The Underlying Mortgage Loans secured by Highland - Highland Park Place
      and Highland - 13939 Livernois Avenue are cross-collateralized and
      cross-defaulted, respectively.

1     Assumes a Cut-off Date in March 2005.

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     Anticipated Repayment Date.

4     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 due after the initial interest only
      term.

5     "Yes" means that defeasance is permitted notwithstanding the Lockout
      Period.

13    The principal and interest payment for this loan was calculated so that
      this loan would completely amortize over 360 periods using an act/360
      accrual basis.

<PAGE>

                                                                  SCHEDULE III

                   MORTGAGE LOANS CONSTITUTING MORTGAGE GROUPS

1.    Bexley Creekside Apartments
      Bexley Commons at Rosedale Apartments

2.    BP Sweetwater Ranch Apartments
      BP Prescott Place II Apartments
      BP Prescott Place I Apartments
      BP Prescott Berkshire of Addison Apartments

3.    BP Huntington Lakes Apartments
      BP Huntington Ridge Apartments
      BP Huntington Springs Apartments

4.    Highland - Highland Park Place
      Highland - 13939 Livernois Avenue

<PAGE>

                                                                   SCHEDULE IV

                        MORTGAGE LOANS WITH LOST NOTES

                                     None

<PAGE>

                                                                    SCHEDULE V

                            EXCEPTIONS TO SELLER'S
                        REPRESENTATIONS AND WARRANTIES

            Reference is made to the Representations and Warranties set forth in
Exhibit A attached hereto corresponding to the paragraph numbers set forth
below:

Exception to paragraph (xxvi)
Walnut Creek Retail

Tenant doing business as Shurgard has a right of first refusal to purchase its
leased premises (Unit 1 of the condominium) that is not subordinated to lender's
lien. Lender's exercise of its right to foreclose on the mortgaged property
would trigger Shurgard's right. The borrower, however, has a put option whereby
it can force Shurgard to purchase its leased premises. Upon the occurrence of an
event of default under the Mortgage Loan Documents, the lender can deliver
notice to Shurgard and exercise the put option, forcing it to purchase its
leased premises before lender otherwise pursues its remedies.

Exception to paragraph (xxviii)
GGP Retail Portfolio

The Mortgage Loan Documents permit pledges of direct or indirect interests in
the related borrower to certain "qualified pledgees," as defined in the Mortgage
Loan Documents, subject to the satisfaction of certain conditions, including
rating agency confirmation that the pledge will not result in a downgrade of the
certificates.

Mission Valley Square
The borrower has the one-time right to transfer the property to an affiliate,
subject to the assumption of the Mortgage Loan and the satisfaction of certain
conditions set forth in the deed of trust, including no change in control.

Exceptions to paragraph (xxxi)(B)
Phelps Dodge Towers

The lessor has not agreed that the ground lease may not be amended, modified,
canceled or terminated without the prior written consent of the lender. The
guarantor has, however, indemnified the lender for the full amount of the loan
if the borrower modifies, amends, supplements or terminates the ground lease
without obtaining the lender's prior written consent.

Battery Park City Entertainment and Retail Complex

The borrower's sub-lease may be terminated without the prior written consent of
the lender in the event of: (i) an event of default under the sub-lease, (ii) a
total or substantially total loss of the property that occurs within the last
five (5) years of the sub-lease's term or (iii) a total condemnation of the
property. The lender, however, is entitled to receive notice of any event of
default under the sub-lease and is given an opportunity to cure such default.
Further, in the event the sub-lease is terminated due to an event of default,
the sub-landlord will enter into a new sub-lease at the lender's request subject
to the satisfaction of certain conditions.

Exception to paragraph (xxxi)(J)
Phelps Dodge Towers
The lessor is permitted to terminate the lease if the lessee does not commence
or complete restoration work within certain time periods required by the lease.

Exceptions to paragraph (xxxi)(K)
Battery Park City Entertainment and Retail Complex
The sub-lease will terminate without the lender's prior written consent if there
is (i) a total or substantial casualty loss of the property within the last five
(5) years of the sub-lease's term or (ii) a total condemnation of the property.

Battery Park City Entertainment and Retail Complex
Pursuant to the terms of the sub-lease to which the borrower is a party, any
award in respect of a total or partial condemnation of the property shall be
apportioned (i) first to the sub-landlord so much of the award that is
attributable to the value of (a) the land so taken, considered as encumbered by
the sub-lease and the two more senior ground and master leases (but unimproved,
except as provided in clause (b)) and (b) certain "civic facilities" located on
or near the property, and (ii) second, to the lender, all amounts due under the
Mortgage Loan Documents.

Battery Park City Entertainment and Retail Complex
The sub-lease may be terminated without the lender's prior written consent if
there is (i) a total or substantial casualty loss of the property within the
last five years of the sub-lease's term or (ii) a total condemnation of the
property.

Exception to paragraph (xxxi)(L)
Battery Park City Entertainment and Retail Complex

Pursuant to the terms of the sub-lease, the sub-landlord has agreed to enter
into a new sub-lease upon the termination of the ground lease if an event of
default occurs under the sub-lease (including a bankruptcy of the sub-lessee).

Exceptions to paragraph (xl)
Bank One Buildings

The Mortgage Loan Documents require the borrower to provide a separate tax
parcel endorsement within 180 days of origination.

Exceptions to paragraph (lv)
GGP Portfolio

The borrower is liable for the misapplication or conversion of rents following
and during the continuance of an event of default.

Phelps Dodge

The borrower is liable for the misappropriation of (i) rents following an event
of default that are not applied to debt service, ordinary and necessary
operating expenses, ground rent, taxes, other charges or paid to lender and (ii)
rents paid more than one (1) month in advance.

Bexley Creekside Apts.
Bexley Commons at Rosedale Apts.

The borrower is liable for (i) rents paid more than one (1) month in advance and
not applied to debt service pursuant to the related promissory note or ordinary
and necessary expenses of owning and operating the property or paid to the
lender and (ii) rents which are not either applied to the ordinary and necessary
expenses of owning and operating the property or paid to the lender, but only to
the extent that such rents are received or applicable to a period after either
an event of default under the Mortgage Loan Documents or notice from the lender
that an event or circumstance has occurred which, with the passage of time or
giving of further notice or both, would constitute an event of default.

BP Sweetwater Ranch Apartments
BP Prescott Place II Apartments
BP Prescott Place I Apartments
BP Berkshire of Addison Apartments

The borrower is liable for the misappropriation of rents (i) paid more than one
(1) month in advance or following an event of default under the Mortgage Loan
Documents and (ii) rents not applied to the ordinary and necessary expenses of
owning and operating the property or paid to the lender, but only to the extent
such rents are received or applicable to a period after an event of default
under the Mortgage Loan Documents or notice from lender that an event or
circumstance that, with the passage of time or giving of further notice or both,
would constitute an event of default.

2001 M Street

The borrower is liable for the misapplication or conversion of rents following
an event of default or collected more than one (1) month in advance to the
extent such rents are not applied to the costs of maintenance and operation of
the property and to the payment of taxes, lien claims, insurance premiums, debt
service and other amounts under the Mortgage Loan Documents.

Battery Park City Retail and Entertainment Complex

The borrower is liable for the misappropriation or conversion of rents paid more
than one (1) month in advance or following an event of default under the
Mortgage Loan Documents.

Rachel Bridge Apartments

The borrower is liable for the misappropriation or conversion of rents paid more
than one (1) month in advance or following an event of default under the
Mortgage Loan Documents. The borrower is not liable for willful acts of material
waste, but is liable for the removal or disposal of any portion of the property
after an event of default under the Mortgage Loan Documents.

<PAGE>

                                                                       EXHIBIT A

                      REPRESENTATIONS AND WARRANTIES OF SELLER
                         REGARDING THE MORTGAGE LOANS

            Except as disclosed in the Exception Report to this Agreement:

            (i) Immediately prior to the sale, transfer and assignment to the
Depositor, no Note or Mortgage was subject to any assignment (other than
assignments which show a complete chain of assignment to the Seller),
participation or pledge, and the Seller had good and marketable title to, and
was the sole owner of, the related Mortgage Loan;

            (ii) RESERVED.

            (iii) The Seller has full right and authority to sell, assign and
transfer such Mortgage Loan and the assignment to the Depositor constitutes a
legal, valid and binding assignment of such Mortgage Loan;

            (iv) The Seller is transferring such Mortgage Loan free and clear of
any and all liens, pledges, charges or security interests of any nature
encumbering such Mortgage Loan;

            (v) As of origination, to Seller's knowledge, based on the related
Borrower's representations and covenants in the related Mortgage Loan Documents,
the Borrower, lessee and/or operator was in possession of all licenses, permits,
and authorizations then required for use of the Mortgaged Property which were
valid and in full force and effect as of the origination date;

            (vi) Each related Note, Mortgage, Assignment of Leases (if any) and
other agreement executed by or for the benefit of the related Borrower, any
guarantor or their successors or assigns in connection with such Mortgage Loan
is the legal, valid and binding obligation of such signatory, enforceable in
accordance with its terms, except as such enforcement may be limited by
bankruptcy, insolvency, reorganization, moratorium or other laws affecting the
enforcement of creditors' rights or by general principles of equity (regardless
of whether such enforceability is considered in a proceeding in equity or at
law); and there is no valid offset, defense, counterclaim, or right of
rescission available to the related Borrower with respect to such Note,
Mortgage, Assignment of Leases and other agreements, except as the enforcement
thereof may be limited by bankruptcy, insolvency, reorganization, moratorium or
other laws affecting the enforcement of creditors' rights or by general
principles of equity (regardless of whether such enforceability is considered in
a proceeding in equity or at law);

            (vii) Each related Assignment of Leases creates a valid first
priority collateral assignment of, or a valid first priority lien or security
interest in, certain rights under the related lease or leases, subject only to a
license granted to the related Borrower to exercise certain rights and to
perform certain obligations of the lessor under such lease or leases, including
the right to operate the related leased property, except as the enforcement
thereof may be limited by bankruptcy, insolvency, reorganization, moratorium or
other laws affecting the enforcement of creditors' rights or by general
principles of equity (regardless of whether such enforceability is considered in
a proceeding in equity or at law); no person other than the related Borrower
owns any interest in any payments due under such lease or leases that is
superior to or of equal priority with the lender's interest therein;

            (viii) Each related assignment of Mortgage from the Seller to the
Depositor and related assignment of the Assignment of Leases, if any, or
assignment of any other agreement executed by or for the benefit of the related
Borrower, any guarantor or their successors or assigns in connection with such
Mortgage Loan from the Seller to the Depositor constitutes the legal, valid and
binding assignment from the Seller to the Depositor, except as the enforcement
thereof may be limited by bankruptcy, insolvency, reorganization, liquidation,
receivership, moratorium or other laws relating to or affecting the enforcement
of creditors' rights or by general principles of equity (regardless of whether
such enforceability is considered in a proceeding in equity or at law);

            (ix) Since origination (A) except as set forth in the related
mortgage file, such Mortgage Loan has not been modified, altered, satisfied,
canceled, subordinated or rescinded and (B) each related Mortgaged Property has
not been released from the lien of the related Mortgage in any manner which
materially interferes with the security intended to be provided by such
Mortgage;

            (x) Each related Mortgage is a valid and enforceable first lien on
the related Mortgaged Property (subject to Permitted Encumbrances (as defined
below)), except as the enforcement thereof may be limited by bankruptcy,
insolvency, reorganization, moratorium or other laws affecting the enforcement
of creditors' rights or by general principles of equity (regardless of whether
such enforceability is considered in a proceeding in equity or at law); and such
Mortgaged Property is free and clear of any mechanics' and materialmen's liens
which are prior to or equal with the lien of the related Mortgage, except those
which are insured against by a lender's title insurance policy (as described
below). A UCC Financing Statement has been filed and/or recorded (or sent for
filing or recording) in all places necessary to perfect a valid security
interest in the personal property necessary to operate the Mortgaged Property;
any security agreement, chattel mortgage or equivalent document related to and
delivered in connection with the Mortgage Loan establishes and creates a valid
and enforceable lien on property described therein, except as such enforcement
may be limited by bankruptcy, insolvency, reorganization, moratorium or other
laws affecting the enforcement of creditors' rights or by general principles of
equity (regardless of whether such enforceability is considered in a proceeding
in equity or at law);

            (xi) The Seller has not taken any action that would cause the
representations and warranties made by the related Borrower in the related
Mortgage Loan Documents not to be true;

            (xii) The Seller has no knowledge that the material representations
and warranties made by the related Borrower in the related Mortgage Loan
Documents are not true in any material respect;

            (xiii) The lien of each related Mortgage is a first priority lien on
the fee and/or leasehold interest of the related Borrower in the principal
amount of such Mortgage Loan or allocated loan amount of the portions of the
Mortgaged Property covered thereby (as set forth in the related Mortgage) after
all advances of principal and is insured by an ALTA lender's title insurance
policy (or a binding commitment therefor), or its equivalent as adopted in the
applicable jurisdiction, insuring the Seller and its successors and assigns as
to such lien, subject only to (A) the lien of current real property taxes,
ground rents, water charges, sewer rents and assessments not yet delinquent or
accruing interest or penalties, (B) covenants, conditions and restrictions,
rights of way, easements and other matters of public record, none of which,
individually or in the aggregate, materially interferes with the current use of
the Mortgaged Property or the security intended to be provided by such Mortgage
or with the Borrower's ability to pay its obligations when they become due or
the value of the Mortgaged Property and (C) the exceptions (general and
specific) and exclusions set forth in such policy, none of which, individually
or in the aggregate, materially interferes with the current general use of the
Mortgaged Property or materially interferes with the security intended to be
provided by such Mortgage or with the related Borrower's ability to pay its
obligations when they become due or the value of the Mortgaged Property (items
(A), (B) and (C) collectively, "Permitted Encumbrances"); the premium for such
policy was paid in full; such policy (or if it is yet to be issued, the coverage
to be afforded thereby) is issued by a title insurance company licensed to issue
policies in the state in which the related Mortgaged Property is located (unless
such state is Iowa) and is assignable (with the related Mortgage Loan) to the
Depositor and the Trustee without the consent of or any notification to the
insurer, and is in full force and effect upon the consummation of the
transactions contemplated by this Agreement; no claims have been made under such
policy and the Seller has not undertaken any action or omitted to take any
action, and has no knowledge of any such act or omission, which would impair or
diminish the coverage of such policy;

            (xiv) The proceeds of such Mortgage Loan have been fully disbursed
and there is no requirement for future advances thereunder, and no future
advances have been made which are not reflected in the related mortgage file;

            (xv) Except as set forth in a property inspection report or
engineering report prepared in connection with the origination of the Mortgage
Loan, as of the later of the date of origination of such Mortgage Loan or the
most recent inspection of the related Mortgaged Property by the Seller, as
applicable, and to the knowledge of Seller as of the date hereof, each related
Mortgaged Property is free of any material damage that would affect materially
and adversely the use or value of such Mortgaged Property as security for the
Mortgage Loan (normal wear and tear excepted) or reserves have been established
to cover the costs to remediate such damage and, as of the closing date for each
Mortgage Loan and, to the Seller's knowledge, as of the date hereof, there is no
proceeding pending for the total or partial condemnation of such Mortgaged
Property that would have a material adverse effect on the use or value of the
Mortgaged Property;

            (xvi) The Seller has inspected or caused to be inspected each
related Mortgaged Property within the past twelve months, or the originator of
the Mortgage Loan inspected or caused to be inspected each related Mortgaged
Property within three months of origination of the Mortgage Loan;

            (xvii) No Mortgage Loan has a shared appreciation feature, any other
contingent interest feature or a negative amortization feature other than the
ARD Loans which may have negative amortization from and after the Anticipated
Repayment Date;

            (xviii) Each Mortgage Loan is a whole loan and contains no equity
participation by Seller;

            (xix) The Mortgage Rate (exclusive of any default interest, late
charges, or prepayment premiums) of such Mortgage Loan complied as of the date
of origination with, or was exempt from, applicable state or federal laws,
regulations and other requirements pertaining to usury. Except to the extent any
noncompliance did not materially and adversely affect the value of the related
Mortgaged Property, the security provided by the Mortgage or the related
Borrower's operations at the related Mortgaged Property, any and all other
requirements of any federal, state or local laws, including, without limitation,
truth-in-lending, real estate settlement procedures, equal credit opportunity or
disclosure laws, applicable to such Mortgage Loan have been complied with as of
the date of origination of such Mortgage Loan;

            (xx) Neither the Seller nor to the Seller's knowledge, any
originator, committed any fraudulent acts during the origination process of any
Mortgage Loan, and no other person has been granted or conveyed the right to
service the Mortgage Loans or receive any consideration in connection therewith,
except as provided in the Pooling and Servicing Agreement or any permitted
subservicing agreements;

            (xxi) All taxes and governmental assessments that became due and
owing prior to the date hereof with respect to each related Mortgaged Property
and that are or may become a lien of priority equal to or higher than the lien
of the related Mortgage have been paid or an escrow of funds has been
established and such escrow (including all escrow payments required to be made
prior to the delinquency of such taxes and assessments) is sufficient to cover
the payment of such taxes and assessments;

            (xxii) All escrow deposits and payments required pursuant to each
Mortgage Loan are in the possession, or under the control, of the Seller or its
agent and there are no deficiencies (subject to any applicable grace or cure
periods) in connection therewith and all such escrows and deposits are being
conveyed by the Seller to the Depositor and identified as such with appropriate
detail;

            (xxiii) Each related Mortgaged Property is insured by a fire and
extended perils insurance policy, issued by an insurer meeting the requirements
of the Pooling and Servicing Agreement, in an amount not less than the lesser of
the principal amount of the related Mortgage Loan and the replacement cost (with
no deduction for physical depreciation) and not less than the amount necessary
to avoid the operation of any co-insurance provisions with respect to the
related Mortgaged Property; each related Mortgaged Property is also covered by
business interruption or rental loss insurance which covers a period of not less
than 12 months and comprehensive general liability insurance in amounts
generally required by prudent commercial mortgage lenders for similar
properties; all premiums on such insurance policies required to be paid as of
the date hereof have been paid; such insurance policies require prior notice to
the insured of termination or cancellation, and no such notice has been received
by the Seller; such insurance names the lender under the Mortgage Loan and its
successors and assigns as a named or additional insured; each related Mortgage
Loan obligates the related Borrower to maintain all such insurance and, at such
Borrower's failure to do so, authorizes the lender to maintain such insurance at
the Borrower's cost and expense and to seek reimbursement therefor from such
Borrower;

            (xxiv) There is no monetary default (other than payments due but not
yet 30 days or more past due), breach, violation or event of acceleration
existing under the related Mortgage Loan; and, to the Seller's knowledge, there
is no (A) non-monetary default, breach, violation or event of acceleration
existing under the related Mortgage Loan or (B) event (other than payments due
but not yet delinquent) which, with the passage of time or with notice and the
expiration of any grace or cure period, would and does constitute a default,
breach, violation or event of acceleration, which default, breach, violation or
event of acceleration, in the case of either (A) or (B) materially and adversely
affects the use or value of the Mortgage Loan or the related Mortgaged Property;
provided, however, that this representation and warranty does not address or
otherwise cover any default, breach, violation or event of acceleration that
specifically pertains to any matter otherwise covered by any other
representation or warranty made by the Seller in any of the other paragraphs of
this Exhibit A; and provided, further that a breach by the Borrower of any
representation or warranty contained in any Mortgage Loan Document shall not
constitute a non-monetary default, breach, violation or event of acceleration
for purposes of this representation and warranty if the subject matter of such
representation or warranty contained in any Mortgage Loan Document is also
covered by any other representation or warranty made by the Seller in this
Exhibit A;

            (xxv) No Mortgage Loan has been more than 30 days delinquent in
making required payments since origination and as of the Cut-off Date no
Mortgage Loan is 30 or more days delinquent in making required payments;

            (xxvi)(A) Each related Mortgage contains provisions so as to render
the rights and remedies of the holder thereof adequate for the practical
realization against the Mortgaged Property of the principal benefits of the
security, including realization by judicial or, if applicable, non-judicial
foreclosure or, subject to applicable state law requirements, appointment of a
receiver, and (B) there is no exemption available to the Borrower which would
interfere with such right to foreclose, except, in the case of either (A) or (B)
as the enforcement of the Mortgage may be limited by bankruptcy, insolvency,
reorganization, moratorium, redemption or other laws affecting the enforcement
of creditors' rights or by general principles of equity (regardless of whether
such enforceability is considered in a proceeding in equity or at law). To the
Seller's knowledge, no Borrower is a debtor in a state or federal bankruptcy or
insolvency proceeding;

            (xxvii) At origination, each Borrower represented and warranted in
all material respects that to its knowledge, except as set forth in certain
environmental reports and, except as commonly used in the operation and
maintenance of properties of similar kind and nature to the Mortgaged Property,
in accordance with prudent management practices and applicable law, and in a
manner that does not result in any contamination of the Mortgaged Property, it
has not used, caused or permitted to exist and will not use, cause or permit to
exist on the related Mortgaged Property any hazardous materials in any manner
which violates federal, state or local laws, ordinances, regulations, orders,
directives or policies governing the use, storage, treatment, transportation,
manufacture, refinement, handling, production or disposal of hazardous materials
or other environmental laws; the related Borrower or an affiliate thereof agreed
to indemnify, defend and hold the mortgagee and its successors and assigns
harmless from and against losses, liabilities, damages, injuries, penalties,
fines, expenses, and claims of any kind whatsoever (including attorneys' fees
and costs) paid, incurred or suffered by, or asserted against, any such party
resulting from a breach of the foregoing representations, warranties or
covenants given by the Borrower in connection with such Mortgage Loan. A Phase I
environmental report and, with respect to certain Mortgage Loans, a Phase II
environmental report, was conducted by a reputable environmental consulting firm
in connection with such Mortgage Loan, which report did not indicate any
material non-compliance with applicable environmental laws or material existence
of hazardous materials or, if any material non-compliance or material existence
of hazardous materials was indicated in any such report, then at least one of
the following statements is true: (A) funds reasonably estimated to be
sufficient to cover the cost to cure any material non-compliance with applicable
environmental laws or material existence of hazardous materials have been
escrowed by the related Borrower and held by the related mortgagee; (B) an
operations or maintenance plan has been required to be obtained by the related
Borrower; (C) the environmental condition identified in the related
environmental report was remediated or abated in all material respects prior to
the date hereof; (D) a no further action or closure letter was obtained from the
applicable governmental regulatory authority (or the environmental issue
affecting the related Mortgaged Property was otherwise listed by such
governmental authority as "closed"); (E) such conditions or circumstances
identified in the Phase I environmental report were investigated further and
based upon such additional investigation, an environmental consultant
recommended no further investigation or remediation; (F) a party with financial
resources reasonably estimated to be adequate to cure the condition or
circumstance provided a guaranty or indemnity to the related Borrower to cover
the costs of any required investigation, testing, monitoring or remediation; (G)
the expenditure of funds reasonably estimated to be necessary to effect such
remediation is not greater than two percent (2%) of the outstanding principal
balance of the related Mortgage Loan; or (H) a lender's environmental insurance
policy was obtained and is a part of the related mortgage file. Notwithstanding
the preceding sentence, with respect to certain Mortgage Loans with an original
principal balance of less than $3,000,000, no environmental report may have been
obtained, but (in such cases where a Phase I environmental report was not
obtained) a lender's secured creditor impairment environmental insurance policy
was obtained with respect to each such Mortgage Loan and is a part of the
related mortgage file. Each of such environmental insurance policies is in full
force and effect, the premiums for such policies have been paid in full and the
Trustee is named as an insured under each of such policies. To the best of the
Seller's knowledge, in reliance on such environmental reports and except as set
forth in such environmental reports, each Mortgaged Property is in material
compliance with all applicable federal, state and local environmental laws, and
to the best of the Seller's knowledge, no notice of violation of such laws has
been issued by any governmental agency or authority, except, in all cases, as
indicated in such environmental reports or other documents previously provided
to the Rating Agencies; and the Seller has not taken any action which would
cause the Mortgaged Property to not be in compliance with all federal, state and
local environmental laws pertaining to environmental hazards;

            (xxviii) (1) Each Mortgage Loan contains provisions for the
acceleration of the payment of the unpaid principal balance of such Mortgage
Loan if, without the consent of the holder of the Mortgage (and the Mortgage
requires the mortgagor to pay all fees and expenses associated with obtaining
such consent), the related Mortgaged Property is directly or indirectly
transferred or sold, and (2) except with respect to transfers of certain
interests in the related Borrower to persons already holding interests in the
Borrower, their family members, affiliated companies and other estate planning
related transfers that satisfy certain criteria specified in the related
Mortgage (which criteria is consistent with the practices of prudent commercial
mortgage lenders), each Mortgage Loan with a Stated Principal Balance of over
$20,000,000 also contains the provisions for the acceleration of the payment of
the unpaid principal balance of such Mortgage Loan if, without the consent of
the holder of the Mortgage, (and the Mortgage requires the mortgagor to pay all
fees and expenses associated with obtaining such consent) a majority interest in
the related Borrower is directly or indirectly transferred or sold;

            (xxix) All improvements included in the related appraisal are within
the boundaries of the related Mortgaged Property, except for encroachments onto
adjoining parcels for which the Seller has obtained title insurance against
losses arising therefrom or that do not materially and adversely affect the use
or value of such Mortgaged Property. No improvements on adjoining parcels
encroach onto the related Mortgaged Property except for encroachments that do
not materially and adversely affect the value of such Mortgaged Property, the
security provided by the Mortgage or the related Borrower's operations at the
Mortgaged Property;

            (xxx) The information pertaining to the Mortgage Loans which is set
forth in the mortgage loan schedule attached as an exhibit to this Agreement is
complete and accurate in all material respects as of the dates of the
information set forth therein (or, if not set forth therein, as of the Cut-Off
Date);

            (xxxi) With respect to any Mortgage Loan where all or a material
portion of the estate of the related Borrower therein is a leasehold estate, and
the related Mortgage does not also encumber the related lessor's fee interest in
such Mortgaged Property, based upon the terms of the ground lease and any
estoppel received from the ground lessor, the Seller represents and warrants
that:

            (A) The ground lease or a memorandum regarding such ground lease has
      been duly recorded. The ground lease permits the interest of the lessee to
      be encumbered by the related Mortgage and does not restrict the use of the
      related Mortgaged Property by such lessee, its successors or assigns in a
      manner that would adversely affect the security provided by the related
      Mortgage. To the best of Seller's knowledge, there has been no material
      change in the terms of the ground lease since its recordation, except by
      any written instruments which are included in the related mortgage file;

            (B) The lessor under such ground lease has agreed in a writing
      included in the related mortgage file that the ground lease may not be
      amended, modified, canceled or terminated without the prior written
      consent of the lender and that any such action without such consent is not
      binding on the lender, its successors or assigns;

            (C) The ground lease has an original term (or an original term plus
      one or more optional renewal terms, which, under all circumstances, may be
      exercised, and will be enforceable, by the lender) that extends not less
      than 20 years beyond the stated maturity of the related Mortgage Loan;

            (D) Based on the title insurance policy (or binding commitment
      therefor) obtained by the Seller, the ground lease is not subject to any
      liens or encumbrances superior to, or of equal priority with, the
      Mortgage, subject to Permitted Encumbrances and liens that encumber the
      ground lessor's fee interest;

            (E) The ground lease is assignable to the lender and its assigns
      without the consent of the lessor thereunder;

            (F) As of the Closing Date, the ground lease is in full force and
      effect, and the Seller has no actual knowledge that any default beyond
      applicable notice and grace periods has occurred or that there is any
      existing condition which, but for the passage of time or giving of notice,
      would result in a default under the terms of the ground lease;

            (G) The ground lease or an ancillary agreement between the lessor
      and the lessee, which is part of the Mortgage File, requires the lessor to
      give notice of any default by the lessee to the lender;

            (H) A lender is permitted a reasonable opportunity (including, where
      necessary, sufficient time to gain possession of the interest of the
      lessee under the ground lease through legal proceedings, or to take other
      action so long as the lender is proceeding diligently) to cure any default
      under the ground lease which is curable after the receipt of notice of any
      default, before the lessor may terminate the ground lease. All rights of
      the lender under the ground lease and the related Mortgage (insofar as it
      relates to the ground lease) may be exercised by or on behalf of the
      lender;

            (I) The ground lease does not impose any restrictions on subletting
      that would be viewed as commercially unreasonable by an institutional
      investor. The lessor is not permitted to disturb the possession, interest
      or quiet enjoyment of any subtenant of the lessee in the relevant portion
      of the Mortgaged Property subject to the ground lease for any reason, or
      in any manner, which would adversely affect the security provided by the
      related Mortgage;

            (J) Under the terms of the ground lease and the related Mortgage,
      any related insurance proceeds or condemnation award (other than in
      respect of a total or substantially total loss or taking) will be applied
      either to the repair or restoration of all or part of the related
      Mortgaged Property, with the lender or a trustee appointed by it having
      the right to hold and disburse such proceeds as repair or restoration
      progresses, or to the payment of the outstanding principal balance of the
      Mortgage Loan, together with any accrued interest, except that in the case
      of condemnation awards, the ground lessor may be entitled to a portion of
      such award;

            (K) Under the terms of the ground lease and the related Mortgage,
      any related insurance proceeds, or condemnation award in respect of a
      total or substantially total loss or taking of the related Mortgaged
      Property will be applied first to the payment of the outstanding principal
      balance of the Mortgage Loan, together with any accrued interest (except
      as provided by applicable law or in cases where a different allocation
      would not be viewed as commercially unreasonable by any institutional
      investor, taking into account the relative duration of the ground lease
      and the related Mortgage and the ratio of the market value of the related
      Mortgaged Property to the outstanding principal balance of such Mortgage
      Loan). Until the principal balance and accrued interest are paid in full,
      neither the lessee nor the lessor under the ground lease will have an
      option to terminate or modify the ground lease without the prior written
      consent of the lender as a result of any casualty or partial condemnation,
      except to provide for an abatement of the rent; and

            (L) Provided that the lender cures any defaults which are
      susceptible to being cured, the lessor has agreed to enter into a new
      lease upon termination of the ground lease for any reason, including
      rejection of the ground lease in a bankruptcy proceeding;

            (xxxii) With respect to any Mortgage Loan where all or a material
portion of the estate of the related Borrower therein is a leasehold estate, but
the related Mortgage also encumbers the related lessor's fee interest in such
Mortgaged Property: (A) such lien on the related fee interest is evidenced by
the related Mortgage, (B) such Mortgage does not by its terms provide that it
will be subordinated to the lien of any other mortgage or encumbrance upon such
fee interest, (C) upon the occurrence of a default under the terms of such
Mortgage by the related Borrower, any right of the related lessor to receive
notice of, and to cure, such default granted to such lessor under any agreement
binding upon the Seller would not be considered commercially unreasonable in any
material respect by prudent commercial mortgage lenders, (D) the related lessor
has agreed in a writing included in the related mortgage file that the related
ground lease may not be amended or modified without the prior written consent of
the lender and that any such action without such consent is not binding on the
lender, its successors or assigns, and (E) the related ground lease is in full
force and effect, and the Seller has no actual knowledge that any default beyond
applicable notice and grace periods has occurred or that there is any existing
condition which, but for the passage of time or giving of notice, would result
in a default under the terms of such ground lease;

            (xxxiii) With respect to Mortgage Loans that are
cross-collateralized or cross-defaulted, all other loans that are
cross-collateralized or cross-defaulted with such Mortgage Loans are being
transferred to the Depositor hereunder;

            (xxxiv) Neither Seller nor any affiliate thereof has any obligation
to make any capital contribution to any Borrower under a Mortgage Loan, other
than contributions made on or prior to the date hereof;

            (xxxv)(A) The Mortgage Loan is directly secured by a Mortgage on a
commercial property or multifamily residential property, and (B) the fair market
value of such real property, as evidenced by an appraisal satisfying the
requirements of FIRREA conducted within 12 months of the origination of the
Mortgage Loan, was at least equal to 80% of the principal amount of the Mortgage
Loan (1) at origination (or if the Mortgage Loan has been modified in a manner
that constituted a deemed exchange under Section 1001 of the Code at a time when
the Mortgage Loan was not in default or default with respect thereto was not
reasonably foreseeable, the date of the last such modification) or (2) at the
date hereof; provided that the fair market value of the real property must first
be reduced by (X) the amount of any lien on the real property interest that is
senior to the Mortgage Loan and (Y) a proportionate amount of any lien that is
in parity with the Mortgage Loan (unless such other lien secures a Mortgage Loan
that is cross-collateralized with such Mortgage Loan, in which event the
computation described in (1) and (2) shall be made on an aggregated basis);

            (xxxvi) There are no subordinate mortgages encumbering the related
Mortgaged Property, nor are there any preferred equity interests held by the
Seller or any mezzanine debt related to such Mortgaged Property, except as set
forth in the Prospectus Supplement;

            (xxxvii) The Mortgage Loan Documents executed in connection with
each Mortgage Loan having an original principal balance in excess of $4,000,000
require that the related Borrower be a single-purpose entity (for this purpose,
"single-purpose entity" shall mean an entity, other than an individual, having
organizational documents which provide substantially to the effect that it is
formed or organized solely for the purpose of owning and operating one or more
Mortgaged Properties, is prohibited from engaging in any business unrelated to
such property and the related Mortgage Loan, does not have any assets other than
those related to its interest in the related Mortgaged Property or its
financing, or any indebtedness other than as permitted under the related
Mortgage Loan);

            (xxxviii) Each Mortgage Loan prohibits the related Borrower from
mortgaging or otherwise encumbering the Mortgaged Property without the prior
written consent of the mortgagee or the satisfaction of debt service coverage or
similar criteria specified therein and, except in connection with trade debt and
equipment financings in the ordinary course of Borrower's business, from
carrying any additional indebtedness, except, in each case, liens contested in
accordance with the terms of the Mortgage Loans or, with respect to each
Mortgage Loan having an original principal balance of less than $4,000,000, any
unsecured debt;

            (xxxix) Each Borrower covenants in the Mortgage Loan Documents that
it shall remain in material compliance with all material licenses, permits and
other legal requirements necessary and required to conduct its business;

            (xl) Each Mortgaged Property (A) is located on or adjacent to a
dedicated road, or has access to an irrevocable easement permitting ingress and
egress, (B) is served by public utilities and services generally available in
the surrounding community or otherwise appropriate for the use in which the
Mortgaged Property is currently being utilized, and (C) constitutes one or more
separate tax parcels or is covered by an endorsement with respect to the matters
described in (A), (B) or (C) under the related title insurance policy (or the
binding commitment therefor);

            (xli) Based solely on a flood zone certification or a survey of the
related Mortgaged Property, if any portion of the improvements on the Mortgaged
Property is located in an area identified by the Federal Emergency Management
Agency or the Secretary of Housing and Urban Development as having special flood
hazards categorized as Zone "A" or Zone "V" and flood insurance is available,
the terms of the Mortgage Loan require the Borrower to maintain flood insurance,
or at such Borrower's failure to do so, authorizes the Lender to maintain such
insurance at the cost and expense of the Borrower;

            (xlii) To the knowledge of the Seller, with respect to each Mortgage
which is a deed of trust, a trustee, duly qualified under applicable law to
serve as such, currently so serves and is named in the deed of trust or has been
substituted in accordance with applicable law or may be substituted in
accordance with applicable law by the related mortgagee, and except in
connection with a trustee's sale after a default by the related Borrower, no
fees are payable to such trustee;

            (xliii) RESERVED.

            (xliv) To the knowledge of the Seller as of the date hereof, there
was no pending action, suit or proceeding, arbitration or governmental
investigation against any Borrower or Mortgaged Property, an adverse outcome of
which would materially and adversely affect such Borrower's ability to perform
under the related Mortgage Loan;

            (xlv) No advance of funds has been made by the Seller to the related
Borrower (other than mezzanine debt and the acquisition of preferred equity
interests by the preferred equity interest holder, as disclosed in the
Prospectus Supplement), and no funds have, to the Seller's knowledge, been
received from any person other than, or on behalf of, the related Borrower, for,
or on account of, payments due on the Mortgage Loan;

            (xlvi) To the extent required under applicable law, as of the
Cut-off Date or as of the date that such entity held the Note, each holder of
the Note was authorized to transact and do business in the jurisdiction in which
each related Mortgaged Property is located, or the failure to be so authorized
did not materially and adversely affect the enforceability of such Mortgage
Loan;

            (xlvii) All collateral for the Mortgage Loans is being transferred
as part of the Mortgage Loans;

            (xlviii) Except as disclosed in the Prospectus Supplement with
respect to the Crossed Mortgage Loans and Mortgage Loans secured by multiple
Mortgaged Properties, no Mortgage Loan requires the lender to release any
portion of the Mortgaged Property from the lien of the related Mortgage except
upon (A) payment in full or defeasance of the related Mortgage Loan, (B) the
satisfaction of certain legal and underwriting requirements that would be
customary for prudent commercial mortgage lenders, (C) releases of unimproved
out-parcels or (D) releases of portions of the Mortgaged Property which will not
have a material adverse effect on the use or value of the collateral for the
related Mortgage Loan;

            (xlix) Except as provided in paragraphs (xxxi)(J) and (K) above, any
insurance proceeds in respect of a casualty loss or taking will be applied
either to (A) the repair or restoration of all or part of the related Mortgaged
Property, with, in the case of all casualty losses or takings in excess of a
specified amount or percentage that a prudent commercial lender would deem
satisfactory and acceptable, the lender (or a trustee appointed by it) having
the right to hold and disburse such proceeds as the repair or restoration
progresses (except in any case where a provision entitling another party to hold
and disburse such proceeds would not be viewed as commercially unreasonable by a
prudent commercial mortgage lender) or (B) to the payment of the outstanding
principal balance of such Mortgage Loan together with any accrued interest
thereon;

            (l) Each Form UCC-1 financing statement, if any, filed with respect
to personal property constituting a part of the related Mortgaged Property and
each Form UCC-2 or UCC-3 assignment, if any, of such financing statement to the
Seller was, and each Form UCC-3 assignment, if any, of such financing statement
in blank which the Trustee or its designee is authorized to complete (but for
the insertion of the name of the assignee and any related filing information
which is not yet available to the Seller) is, in suitable form for filing in the
filing office in which such financing statement was filed;

            (li) To the Seller's knowledge, (A) each commercial lease covering
more than 10% (20% in the case of any Mortgage Loan having an original principal
balance less than $2,500,000) of the net leaseable area of the related Mortgaged
Property is in full force and effect and (B) there exists no default under any
such commercial lease either by the lessee thereunder or by the related Borrower
that could give rise to the termination of such lease;

            (lii) Based upon an opinion of counsel and/or other due diligence
considered reasonable by prudent commercial mortgage lenders, the improvements
located on or forming part of each Mortgaged Property comply with applicable
zoning laws and ordinances, or constitute a legal non-conforming use or
structure or, if any such improvement does not so comply, such non-compliance
does not materially and adversely affect the value of the related Mortgaged
Property. With respect to any Mortgage Loan with a Stated Principal Balance as
of the Closing Date of over $10,000,000, if the related Mortgaged Property does
not so comply, to the extent the Seller is aware of such non-compliance, it has
required the related Borrower to obtain law and ordinance insurance coverage in
amounts customarily required by prudent commercial mortgage lenders;

            (liii) Each Mortgage Loan constitutes a "qualified mortgage" within
the meaning of Section 860G(a)(3) of the Code (but without regard to the rule in
Treasury Regulation Section 1.860G-2(f)(2) that treats a defective obligation as
a qualified mortgage or any substantially similar successor provision) and all
Prepayment Premiums and Yield Maintenance Charges constitute "customary
prepayment penalties" within the meaning of Treasury Regulation Section
1.860G-1(b)(2);

            (liv) With respect to any Mortgage Loan that pursuant to the
Mortgage Loan Documents can be defeased, (A) the Mortgage Loan cannot be
defeased within two years after the Closing Date, (B) the Borrower can pledge
only "government securities" (within the meaning of Section 2(a)(16) of the
Investment Company Act of 1940, as amended) in an amount sufficient to make all
scheduled payments under the Mortgage Loan when due, (C) the Borrower is
required to provide independent certified public accountant's certification that
the collateral is sufficient to make such payments, (D) the loan may be required
to be assumed by a single-purpose entity designated by the holder of the
Mortgage Loan, (E) the Borrower is required to provide an opinion of counsel
that the Trustee has a perfected security interest in such collateral prior to
any other claim or interest, (F) the Borrower is required to pay all Rating
Agency fees associated with defeasance (if rating confirmation is a specific
condition precedent thereto) and all other reasonable expenses associated with
defeasance, including, but not limited to, accountant's fees and opinions of
counsel, (G) with respect to any Significant Trust Mortgage Loan (as defined in
the Pooling and Servicing Agreement), the Borrower is required to provide an
opinion of counsel that such defeasance will not cause any REMIC created under
the Pooling and Servicing Agreement to fail to qualify as a REMIC for federal or
applicable state tax purposes and (H) with respect to any Significant Trust
Mortgage Loan (as defined in the Pooling and Servicing Agreement), the Borrower
must obtain Rating Agency confirmation from each Rating Agency that the
defeasance would not result in such Rating Agency's withdrawal, downgrade or
qualification of the then current rating of any class of Certificate rated by
such Rating Agency;

            (lv) The Mortgage Loan Documents for each Mortgage Loan provide that
the related Borrower thereunder shall be liable to the Seller for any losses
incurred by the Seller due to (A) the misapplication or misappropriation of
rents, insurance proceeds or condemnation awards, (B) any willful act of
material waste, (C) any breach of the environmental covenants contained in the
related Mortgage Loan Documents, and (D) fraud by the related Borrower; provided
that, with respect to clause (C) of this sentence, an indemnification against
losses related to such violations or environmental insurance shall satisfy such
requirement;

            (lvi) If such Mortgage Loan is an ARD Loan, it commenced amortizing
on its initial scheduled Due Date and provides that: (A) its Mortgage Rate will
increase by no more than two percentage points in connection with the passage of
its Anticipated Repayment Date and so long as the Mortgage Loan is an asset of
the Trust Fund; (B) its Anticipated Repayment Date is not less than seven years
following the origination of such Mortgage Loan; (C) no later than the related
Anticipated Repayment Date, if it has not previously done so, the related
Borrower is required to enter into a "lockbox agreement" whereby all revenue
from the related Mortgaged Property shall be deposited directly into a
designated account controlled by the Master Servicer; and (D) any cash flow from
the related Mortgaged Property that is applied to amortize such Mortgage Loan
following its Anticipated Repayment Date shall, to the extent such net cash flow
is in excess of the Monthly Payment payable therefrom, be net of budgeted and
discretionary (servicer approved) capital expenditures;

            (lvii) Except as disclosed in the Prospectus Supplement, no Mortgage
Loan, and no group of Mortgage Loans made to the same Borrower and to Borrowers
that are affiliates, accounted for more than 5.0% of the aggregate of the Stated
Principal Balances of all of the Mortgage Loans and all the mortgage loans sold
to the Depositor by GMAC Commercial Mortgage Corporation ("GMACCMC") pursuant to
that certain Mortgage Loan Purchase Agreement dated as of March 1, 2005 between
the Depositor and GMACCMC; and

            (lviii) The Seller has delivered to the Trustee or a custodian
appointed thereby, with respect to each Mortgage Loan, in accordance with
Section 3 of this Agreement, a complete Mortgage File.

<PAGE>

                                                                       EXHIBIT B

                            AFFIDAVIT OF LOST NOTE

STATE OF NEW YORK       )
                        )  ss.:
COUNTY OF NEW YORK      )

            _________________________________, being duly sworn, deposes and
says:

            1. that he is an authorized signatory of Column Financial, Inc.
("Column");

            2. that Column 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. (a) that Column , 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 Column Financial,
            Inc., under date of ______________ (the "Note");

            4. that the Note is now owned and held by Column;

            5. 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;

            6. that no other person, firm, corporation or other entity has any
right, title, interest or claim in the Note except Column; and

            7. upon assignment of the Note by Column to Credit Suisse First
Boston Mortgage Securities Corp. (the "Depositor") and subsequent assignment by
the Depositor to the trustee for the benefit of the holders of the Credit Suisse
First Boston Mortgage Securities Corp. Commercial Mortgage Pass-Through
Certificates, Series 2005-C1 (the "Trustee") (which assignment may, at the
discretion of the Depositor, be made directly by Column to the Trustee) Column
covenants and agrees (a) promptly to 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 Column's failure to deliver said original
Note to the Trustee.

                                       COLUMN FINANCIAL, INC.

                                       By:
                                          ------------------------------------
                                          Name:
                                          Title:

Sworn to before me
this ________ day of [     ], 2005

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00081-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00081-of-00352.parquet"}]]