Document:

EXHIBIT 4.4

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              CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.
                                   (Depositor)

                                       and

                        LASALLE BANK NATIONAL ASSOCIATION
                                    (Seller)

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                        MORTGAGE LOAN PURCHASE AGREEMENT

                          Dated as of December 1, 2004

                                   ----------

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                                TABLE OF CONTENTS

                                                                            Page

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 LaSalle 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

Exhibit C     Mortgage Loans with Ground Lease

Exhibit D     Pooling and Servicing Agreement

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                        MORTGAGE LOAN PURCHASE AGREEMENT

            This Mortgage Loan Purchase Agreement (this "Agreement"), dated as
of December 1, 2004, is made by and between LASALLE BANK NATIONAL ASSOCIATION, a
national banking association ("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 in the exact form as
attached hereto as Exhibit D.

            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, 100 Maiden Lane, New York, New York 10038,
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 after the
Cut-off Date with respect to the Mortgage Loans 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
2004-C5, 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 2004-C5";

            (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 2004-C5";

            (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 2004-C5," 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, when appropriate, 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 or executed escrow instructions
binding on the title insurer irrevocably obligating the title insurer to issue
such title insurance policy, 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;

            (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 national
      banking association in good standing under the laws of the United States.
      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 and adversely 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 (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 (the "Extended Resolution Period").
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, 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 (including, if permitted under this Section 7, the Extended
Resolution 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 (xxiii) set forth on Exhibit A hereto to the extent
such breach relates to nonpayment of such fees. 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 the
last sentence in representation (xxvii) 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. In addition, Depositor is not in default with respect to any order or
decree that would materially and adversely affect the ability of Depositor to
perform its obligations under 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 135 South LaSalle Street, Suite
3410, Chicago, Illinois 60603, Attention: Greg Spevok, Telecopy No.: (312)
904-0900, 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.

                                       LASALLE BANK NATIONAL ASSOCIATION,
                                          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 December 1, 2004, between LaSalle Bank National Association (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 December 16, 2004, between Depositor and the Initial Purchaser.

            "Certificates" means the Credit Suisse First Boston Mortgage
Securities Corp. Commercial Mortgage Pass-Through Certificates, Series 2004-C5,
issued in multiple classes.

            "Closing Date" means December 28, 2004.

            "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 December 2004.

            "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
December 16, 2004, 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
December 1, 2004, among the Master Servicer, the Special Servicer, the
Depositor, the Trustee and the Certificate Administrator, including, without
limitation, the exhibits and schedules annexed thereto, in the exact form as
attached hereto as Exhibit D.

            "Primary Collateral" means with respect to any Crossed Mortgage
Loan, that portion of the Mortgaged Property designated as directly securing
such Crossed Mortgage Loan and excluding any Mortgaged Property as to which the
related lien may only be foreclosed upon by exercise of the
cross-collateralization provisions of such Crossed Mortgage Loan.

            "Private Certificates" means the Certificates that are not Publicly
Offered Certificates.

            "Prospectus" means the Prospectus, dated December 16, 2004, that is
a part of the Depositor's registration statement on Form S-3 (File No.
333-116258).

            "Prospectus Supplement" means the Prospectus Supplement, dated
December 16, 2004, relating to the Publicly Offered Certificates.

            "Publicly Offered Certificates" means the Class A-1, Class A-2,
Class A-3, Class A-AB, Class A-4, Class A-1-A, 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, KeyBanc Capital
Markets, a Division of McDonald Investments Inc., ABN AMRO Incorporated and J.P.
Morgan Securities Inc.

            "Underwriting Agreement" means the Underwriting Agreement, dated
December 16, 2004, between the Depositor and the Underwriters.

<PAGE>

                                                                     SCHEDULE II

                             MORTGAGE LOAN SCHEDULE

<TABLE>
<CAPTION>

                 Loan Group
 #     Crossed       #                           Property Name
----   -------   ----------   ---------------------------------------------------
<S>    <C>       <C>          <C>
   4                      1   Eastgate Mall
                              Eastgate Mall B-1 Loan (not part of the trust fund)
                              Eastgate Mall B-2 Loan (not part of the trust fund)
  15                      1   City Centre Place
  19                      2   Town Hall Terrace
  23                      1   Pleasant Hill Square
  26                      1   Sunshine Key
  31                      2   Sanctuary of Woodshire
  34                      1   FedEx - Midway
                              FedEx - Midway B Loan (not part of the trust fund)
  41                      1   Brunswick Plaza West
  46                      2   Campus View Apts
  47                      1   Sunburst North Ft. Myers
  54                      1   Silver Dollar
  56                      2   Campus Village
  58                      2   Blackthorn Apartments
  64                      1   222 & 312 Clematis Street
64a                       1   222 Clematis Street
64b                       1   312 Clematis Street
  69                      1   Margarita Promenade
  78                      2   Pecos Point
  81                      2   Pacific Dunes
  82                      1   Civista Health Building
  84                      2   Chateaux Fall Creek
  86                      1   Business Park & Willow Creek
  89                      1   Apple Valley Estates MHP
  90                      1   Carlsbad Courtyard
 103                      1   Walgreens - Rocky Mount, NC
 104                      1   Walgreens - Casper, WY
 106                      1   Walgreens - Greenville (Evans)
 109                      1   Wilshire Westgate Shopping Center
 111                      2   Shores at Lake Point
 113                      1   Robin Hill MHR & RV
 114                      1   Walgreens - Vernon, CT
 118                      2   Marina Apartments Portfolio
118a                      2   25 Cervantes Boulevard
118b                      2   2395 Francisco Street
118c                      2   15 & 27 Alhambra
 119                      1   West River Crossing
 121                      1   Walgreens - Apple Valley, CA
 124                      1   CVS - Bessemer
 125                      1   South Melrose Office
 126                      1   Weinecke Court
 131                      2   Durrett Village II Apartments
 134                      1   Walgreens - Miami, OK
 135                      1   Hunter's Retreat Professional Center
 138                      2   Oak Park Apartments
 142                      1   Gallery Park II Office
 144                      1   Walgreens - Cable Road
 145                      2   Crystal River
 149                      1   North Village Square
 150                      1   Walgreens - Lubbock, TX
 151                      1   Walgreens - Long Beach
 155                      2   The Mill MHC
 157                      2   Broadway Terrace Apartments
 158                      1   North Canal Plaza
 164                      1   Sunburst Florida Keys
 166                      1   Fed Ex Ground Package
 179                      2   The Villa Apartments
 184                      1   Mooresville Gateway Trade Court Shoppes
 185                      2   Queen Mary Apartments
 188                      1   Hogan Retail Plaza Center
 198                      1   Lakes IV Apartments
 202                      2   Durrett Village I Apartments
 204                      1   South University Center
 215                      1   West Little York Mini Storage
 216                      2   Hillcrest Apartment Community
 220                      2   Amber Point Apartments

<CAPTION>

                                                                                         Zip                Mortgage
 #                           Address                               City         State   Code             Property Seller
----   ---------------------------------------------------   ----------------   -----   -----   ---------------------------------
<S>    <C>                                                   <C>                <C>     <C>     <C>
   4   4601 Eastgate Boulevard                               Cincinnati          OH     45425   LaSalle Bank National Association

  15   400 South 4th Street                                  Las Vegas           NV     89101   LaSalle Bank National Association
  19   2255 Center Terrace                                   Grand Island        NY     14072   LaSalle Bank National Association
  23   2205-2275 Pleasant Hill Road                          Duluth              GA     30096   LaSalle Bank National Association
  26   38801 Overseas Highway                                Marathon            FL     33043   LaSalle Bank National Association
  31   2200 South Clubhouse Drive                            New Berlin          WI     53151   LaSalle Bank National Association
  34   9500 Sergo Drive                                      McCook              IL     60525   LaSalle Bank National Association

  41   720 Hoosick Road                                      Troy                NY     12180   LaSalle Bank National Association
  46   301 Campus View Drive                                 Columbia            MO     65201   LaSalle Bank National Association
  47   7974 Samville Road                                    North Fort Myers    FL     33917   LaSalle Bank National Association
  54   12609 Silver Dollar Drive                             Odessa              FL     33556   LaSalle Bank National Association
  56   1151 East Michigan Avenue                             East Lansing        MI     48823   LaSalle Bank National Association
  58   4231 Yanceyville Street                               Greensboro          NC     27405   LaSalle Bank National Association
  64                                                                                            LaSalle Bank National Association
64a    222 Clematis Street                                   West Palm Beach     FL     33401
64b    312 Clematis Street                                   West Palm Beach     FL     33401
  69   40573 Margarita Road                                  Temecula            CA     92591   LaSalle Bank National Association
  78   1650 North Pecos Road                                 Las Vegas           NV     89115   LaSalle Bank National Association
  81   1205 Silver Spur Place                                Oceano              CA     93445   LaSalle Bank National Association
  82   3510 Old Washington Road                              Waldorf             MD     20602   LaSalle Bank National Association
  84   15116 Mesa Drive                                      Humble              TX     77396   LaSalle Bank National Association
  86   9775 Business Park Avenue & 10021 Willow Creek Road   San Diego           CA     92131   LaSalle Bank National Association
  89   1650 East 181st Avenue                                Hebron              IN     46341   LaSalle Bank National Association
  90   2231 Rutherford Road                                  Carlsbad            CA     92008   LaSalle Bank National Association
 103   2624 Sunset Avenue                                    Rocky Mount         NC     27804   LaSalle Bank National Association
 104   1071 CY Avenue                                        Casper              WY     82604   LaSalle Bank National Association
 106   103 Southeast Grenville Boulevard                     Greenville          NC     27858   LaSalle Bank National Association
 109   7500 and 7402 West Fairview Avenue                    Boise               ID     83704   LaSalle Bank National Association
 111   299 Lake Pointe Drive                                 Middle Island       NY     11953   LaSalle Bank National Association
 113   149 Robin Hill Road                                   Lenhartsville       PA     19534   LaSalle Bank National Association
 114   529 Talcottville Road                                 Vernon              CT     06066   LaSalle Bank National Association
 118                                                                                            LaSalle Bank National Association
118a   25 Cervantes Boulevard                                San Francisco       CA     94123
118b   2395 Francisco Street                                 San Francisco       CA     94123
118c   15 & 27 Alhambra                                      San Francisco       CA     94123
 119   2318 Essington Road                                   Joliet              IL     60435   LaSalle Bank National Association
 121   20250 Highway 18                                      Apple Valley        CA     92307   LaSalle Bank National Association
 124   2901 Morgan Road                                      Bessemer            AL     35022   LaSalle Bank National Association
 125   440 South Melrose Drive                               Vista               CA     92081   LaSalle Bank National Association
 126   670-692 Vernon Avenue                                 Glencoe             IL     60022   LaSalle Bank National Association
 131   200 State Line Road                                   Clarksville         TN     37042   LaSalle Bank National Association
 134   910 North Main Street                                 Miami               OK     74354   LaSalle Bank National Association
 135   2500 Hunters Place                                    Woodbridge          VA     22192   LaSalle Bank National Association
 138   2009 Waveland Avenue                                  Waveland            MS     39576   LaSalle Bank National Association
 142   4020 Wake Forest Road                                 Raleigh             NC     27607   LaSalle Bank National Association
 144   701 North Cable Road                                  Lima                OH     45805   LaSalle Bank National Association
 145   11419 West Fort Island Trail                          Crystal River       FL     34429   LaSalle Bank National Association
 149   3111 45th Street                                      West Palm Beach     FL     33407   LaSalle Bank National Association
 150   5115 98th Street                                      Lubbock             TX     79424   LaSalle Bank National Association
 151   3301 East Anaheim Street                              Long Beach          CA     90804   LaSalle Bank National Association
 155   6545 Highway 42                                       Rex                 GA     30273   LaSalle Bank National Association
 157   151 Broadway Drive                                    Clinton             MS     39206   LaSalle Bank National Association
 158   610 North Canal Boulevard                             Thibodaux           LA     70301   LaSalle Bank National Association
 164   311 Johnson Road                                      Sugarloaf Key       FL     33042   LaSalle Bank National Association
 166   330 Leggett Drive                                     Richland            MS     39218   LaSalle Bank National Association
 179   314 Calion Street                                     Jonesboro           AR     72401   LaSalle Bank National Association
 184   123-125 Trade Court                                   Mooresville         NC     28117   LaSalle Bank National Association
 185   100 Palace Court                                      North Syracuse      NY     13212   LaSalle Bank National Association
 188   1835-1975 Northeast Division Street                   Gresham             OR     97030   LaSalle Bank National Association
 198   4343 Warm Springs Road                                Columbus            GA     31909   LaSalle Bank National Association
 202   160 State Line Road                                   Clarksville         TN     37042   LaSalle Bank National Association
 204   8211 University Avenue                                Lubbock             TX     79423   LaSalle Bank National Association
 215   8150 West Little York Road                            Houston             TX     77040   LaSalle Bank National Association
 216   1727-51 St. Mathews Road & 1306-62 Marshall Street    Orangeburg          SC     29116   LaSalle Bank National Association
 220   2113 - 19 Ringgold Court                              Clarksville         TN     37042   LaSalle Bank National Association

<CAPTION>
       Sq. Ft./                               Percentage of                        Orig            Rem.            Orig
        Rooms/     Original       Cut-off        Initial           Fee/           Amort.          Amort.         Term to
 #       Pads       Balance     Balance (1)   Pool Balance       Leasehold         Term          Term (1)      Maturity (6)
----   --------   -----------   -----------   -------------    -------------   -------------   -------------   ------------
<S>    <C>        <C>           <C>           <C>              <C>             <C>             <C>             <C>
   4    557,191   $53,700,000   $53,700,000             2.9%   Fee/Leasehold             360             360             60

  15    103,199   $21,500,000   $21,500,000             1.2%        Fee                  360             360            120
  19        390   $19,000,000   $19,000,000             1.0%        Fee                  336             336            116
  23    282,137   $17,120,000   $17,120,000             0.9%        Fee        Interest Only   Interest Only             60
  26        409   $16,540,000   $16,521,828             0.9%        Fee                  360             359            120
  31        182   $15,000,000   $15,000,000             0.8%        Fee                  360             360            120
  34    156,554   $14,480,000   $14,480,000             0.8%        Fee                  360             360            123

  41    115,348   $11,925,000   $11,925,000             0.6%   Fee/Leasehold             360             360            120
  46        172   $10,400,000   $10,400,000             0.6%        Fee                  360             360            120
  47        733   $10,390,000   $10,378,585             0.6%        Fee                  360             359            120
  54        382    $9,160,000    $9,149,993             0.5%        Fee                  360             359            120
  56         60    $9,000,000    $8,990,019             0.5%        Fee                  360             359            120
  58        192    $8,700,000    $8,700,000             0.5%        Fee                  360             360            117
  64               $7,700,000    $7,700,000             0.4%                             360             360            121
64a      32,281    $4,500,000    $4,500,000                         Fee
64b      23,708    $3,200,000    $3,200,000                         Fee
  69     43,074    $7,224,000    $7,224,000             0.4%        Fee                  360             360            120
  78        160    $6,200,000    $6,188,149             0.3%        Fee                  360             358             84
  81        213    $6,025,000    $6,025,000             0.3%        Fee                  360             360            120
  82     42,637    $5,900,000    $5,900,000             0.3%        Fee                  240             240            120
  84        115    $5,680,000    $5,680,000             0.3%        Fee                  360             360            120
  86     73,481    $5,550,000    $5,550,000             0.3%        Fee                  360             360            120
  89        236    $5,100,000    $5,084,415             0.3%        Fee                  360             357            120
  90     39,477    $5,000,000    $5,000,000             0.3%        Fee                  360             360            120
 103     14,560    $4,100,000    $4,095,596             0.2%        Fee                  360             359            120
 104     14,560    $4,085,000    $4,080,773             0.2%        Fee                  360             359            120
 106     12,917    $3,980,000    $3,975,725             0.2%        Fee                  360             359            120
 109     77,993    $3,923,506    $3,923,506             0.2%        Fee                  352             352            112
 111         92    $3,800,000    $3,800,000             0.2%        Fee                  360             360            120
 113        260    $3,600,000    $3,600,000             0.2%        Fee                  348             348             60
 114     14,490    $3,600,000    $3,596,177             0.2%        Fee                  360             359            120
 118               $3,500,000    $3,500,000             0.2%                             240             240            240
118a         18    $1,456,693    $1,456,693                         Fee
118b         18    $1,204,724    $1,204,724                         Fee
118c         12      $838,583      $838,583                         Fee
 119     32,452    $3,500,000    $3,500,000             0.2%        Fee        Interest Only   Interest Only             84
 121     15,035    $3,412,500    $3,408,640             0.2%        Fee                  360             359            120
 124     10,880    $3,375,000    $3,375,000             0.2%        Fee                  360             360            121
 125     24,197    $3,300,000    $3,300,000             0.2%        Fee                  360             360            120
 126         11    $3,300,000    $3,296,158             0.2%        Fee                  360             359             60
 131         92    $3,200,000    $3,200,000             0.2%        Fee                  360             360            120
 134     14,560    $3,128,000    $3,124,763             0.2%        Fee                  360             359            120
 135     24,784    $3,030,000    $3,030,000             0.2%        Fee                  360             360            120
 138        136    $3,000,000    $2,992,172             0.2%        Fee                  300             298            120
 142     30,490    $3,000,000    $3,000,000             0.2%        Fee                  360             360            121
 144     14,490    $2,900,000    $2,894,031             0.2%        Fee                  360             358            120
 145        256    $2,835,000    $2,831,903             0.2%        Fee                  360             359            120
 149     24,361    $2,700,000    $2,682,958             0.1%        Fee                  360             353            120
 150     14,560    $2,660,000    $2,657,088             0.1%        Fee                  360             359            120
 151     11,656    $2,650,000    $2,646,941             0.1%   Fee/Leasehold             360             359            120
 155        149    $2,450,000    $2,450,000             0.1%        Fee                  300             300            120
 157         80    $2,400,000    $2,397,395             0.1%        Fee                  360             359            120
 158     20,788    $2,370,000    $2,367,381             0.1%        Fee                  360             359            120
 164        100    $2,050,000    $2,047,760             0.1%        Fee                  360             359            120
 166     55,957    $2,000,000    $2,000,000             0.1%        Fee                  360             360            121
 179         80    $1,750,000    $1,739,069             0.1%        Fee                  300             295            120
 184     15,262    $1,600,000    $1,600,000             0.1%        Fee                  360             360            120
 185         72    $1,600,000    $1,600,000             0.1%        Fee                  360             360            120
 188     18,564    $1,500,000    $1,500,000             0.1%        Fee                  360             360            120
 198         18    $1,360,000    $1,357,372             0.1%        Fee                  360             358            120
 202         64    $1,300,000    $1,300,000             0.1%        Fee                  240             240            120
 204     10,459    $1,280,000    $1,278,750             0.1%        Fee                  360             359            120
 215     56,560    $1,000,000      $991,197             0.1%        Fee                  300             294             60
 216         42      $980,000      $978,448             0.1%        Fee                  300             299            120
 220         24      $800,000      $799,314            0.04%        Fee                  360             359            180

<CAPTION>
             Rem.
           Term to        Interest    Monthly                                   Primary          Master        Administration
 #     Maturity (1) (6)     Rate      Payment    ARD (7)    Defeasance (9)   Servicing Fee    Servicing Fee         Fees
----   ----------------   --------    --------   --------   --------------   -------------    -------------    --------------
<S>    <C>                <C>         <C>        <C>        <C>              <C>              <C>              <C>
   4                 60     4.4461%   $269,071     N/A           Yes                  0.02%            0.01%           0.0313%
                                                                                     0.015%
                                                                                     0.015%
  15                120     5.4200%   $120,998     N/A           Yes                  0.02%            0.01%           0.0313%
  19                115     5.4270%   $110,101     N/A           Yes                  0.02%            0.01%           0.0313%
  23                 60     5.0400%    $71,904     N/A            No                  0.02%            0.01%           0.0313%
  26                119     5.4800%    $93,705     N/A           Yes                  0.02%            0.01%           0.0313%
  31                119     5.4200%    $84,417     N/A           Yes                  0.02%            0.01%           0.0313%
  34                122     5.8900%    $85,794   2/1/2015        Yes                  0.02%            0.01%           0.0313%
                                                                                      0.00%
  41                119     5.4300%    $67,186     N/A           Yes                  0.02%            0.01%           0.0313%
  46                119     5.3440%    $58,036     N/A           Yes                  0.02%            0.01%           0.0313%
  47                119     5.4800%    $58,863     N/A           Yes                  0.02%            0.01%           0.0313%
  54                119     5.5100%    $52,067     N/A           Yes                  0.02%            0.01%           0.0313%
  56                119     5.4300%    $50,706     N/A           Yes                  0.02%            0.01%           0.0313%
  58                117     5.5710%    $49,786     N/A           Yes                  0.02%            0.01%           0.0313%
  64                121     5.3300%    $42,902     N/A           Yes                  0.10%            0.01%           0.1113%
64a
64b
  69                120     5.4850%    $40,949     N/A           Yes                  0.02%            0.01%           0.0313%
  78                 82     5.8000%    $36,379     N/A           Yes                  0.02%            0.01%           0.0313%
  81                120     5.3350%    $33,588     N/A           Yes                  0.02%            0.01%           0.0313%
  82                120     5.7000%    $41,255     N/A           Yes                  0.08%            0.01%           0.0913%
  84                120     5.3200%    $31,612     N/A           Yes                  0.02%            0.01%           0.0313%
  86                120     5.4400%    $31,304     N/A           Yes                  0.02%            0.01%           0.0313%
  89                117     5.6400%    $29,407     N/A           Yes                  0.02%            0.01%           0.0313%
  90                120     5.7250%    $29,099     N/A           Yes                  0.02%            0.01%           0.0313%
 103                119     5.6000%    $23,537     N/A           Yes                  0.05%            0.01%           0.0613%
 104                119     5.7970%    $23,961     N/A           Yes                  0.05%            0.01%           0.0313%
 106                119     5.6000%    $22,848     N/A           Yes                  0.02%            0.01%           0.0613%
 109                112     5.5190%    $22,524     N/A           Yes                  0.02%            0.01%           0.0313%
 111                120     5.6500%    $21,935     N/A           Yes                  0.02%            0.01%           0.0313%
 113                 60     5.2000%    $20,053     N/A           Yes                  0.02%            0.01%           0.0313%
 114                119     5.6610%    $20,806     N/A           Yes                  0.08%            0.01%           0.0913%
 118                240     5.7800%    $24,633     N/A           Yes                  0.02%            0.01%           0.0313%
118a
118b
118c
 119                 83     4.8800%    $14,233     N/A            No                  0.02%            0.01%           0.0313%
 121                119     5.3250%    $19,003     N/A           Yes                  0.02%            0.01%           0.0313%
 124                121     5.5000%    $19,163     N/A           Yes                  0.02%            0.01%           0.0313%
 125                120     5.3900%    $18,510     N/A           Yes                  0.02%            0.01%           0.0313%
 126                 59     5.1700%    $18,060     N/A           Yes                  0.02%            0.01%           0.0313%
 131                120     6.1100%    $19,413     N/A           Yes                  0.02%            0.01%           0.0313%
 134                119     5.7970%    $18,348     N/A           Yes                  0.02%            0.01%           0.0313%
 135                120     5.5900%    $17,375     N/A           Yes                  0.06%            0.01%           0.0713%
 138                118     6.2500%    $19,790     N/A           Yes                  0.02%            0.01%           0.0313%
 142                121     5.7990%    $17,601     N/A           Yes                  0.08%            0.01%           0.0913%
 144                118     5.4600%    $16,393     N/A           Yes                  0.02%            0.01%           0.0313%
 145                119     5.5100%    $16,115     N/A           Yes                  0.02%            0.01%           0.0313%
 149                113     6.0590%    $16,290     N/A           Yes                  0.02%            0.01%           0.0313%
 150                119     5.5000%    $15,103     N/A           Yes                  0.06%            0.01%           0.0713%
 151                119     5.2160%    $14,578     N/A           Yes                  0.02%            0.01%           0.0313%
 155                120     5.5270%    $15,085     N/A           Yes                  0.02%            0.01%           0.0313%
 157                119     5.5450%    $13,695     N/A           Yes                  0.08%            0.01%           0.0913%
 158                119     5.4500%    $13,382     N/A           Yes                  0.02%            0.01%           0.0313%
 164                119     5.5100%    $11,653     N/A           Yes                  0.02%            0.01%           0.0313%
 166                121     5.0960%    $10,854     N/A           Yes                  0.02%            0.01%           0.0313%
 179                115     6.4600%    $11,772     N/A           Yes                  0.02%            0.01%           0.0313%
 184                120     5.2330%     $8,818     N/A           Yes                  0.02%            0.01%           0.0313%
 185                120     5.1100%     $8,697     N/A           Yes                  0.02%            0.01%           0.0313%
 188                120     5.0900%     $8,135     N/A           Yes                  0.02%            0.01%           0.0313%
 198                118     5.7500%     $7,937     N/A           Yes                  0.02%            0.01%           0.0313%
 202                120     5.9000%     $9,239     N/A           Yes                  0.02%            0.01%           0.0313%
 204                119     6.1000%     $7,757     N/A           Yes                  0.02%            0.01%           0.0313%
 215                 54     5.6260%     $6,216     N/A           Yes                  0.02%            0.01%           0.0313%
 216                119     5.3900%     $5,954     N/A           Yes                  0.08%            0.01%           0.0913%
 220                179     6.7700%     $5,199     N/A           Yes                  0.02%            0.00%           0.0313%

<CAPTION>

       Letter of
 #      Credit
----   ---------
<S>    <C>
   4      N/A

  15      N/A
  19      N/A
  23      N/A
  26      N/A
  31      N/A
  34      N/A

  41      N/A
  46      N/A
  47      N/A
  54      N/A
  56      N/A
  58      N/A
  64      N/A
64a
64b
  69      N/A
  78      N/A
  81      N/A
  82      N/A
  84      N/A
  86      N/A
  89      N/A
  90      N/A
 103      N/A
 104      N/A
 106      N/A
 109      N/A
 111      N/A
 113      N/A
 114      N/A
 118      N/A
118a
118b
118c
 119      N/A
 121      N/A
 124      N/A
 125      N/A
 126      N/A
 131      N/A
 134      N/A
 135      N/A
 138      N/A
 142      N/A
 144      N/A
 145      N/A
 149      N/A
 150      N/A
 151      N/A
 155      N/A
 157      N/A
 158      N/A
 164      N/A
 166      N/A
 179      N/A
 184      N/A
 185      N/A
 188      N/A
 198      N/A
 202      N/A
 204      N/A
 215      N/A
 216      N/A
 220      N/A
</TABLE>

<PAGE>

                                                                    SCHEDULE III

                   MORTGAGE LOANS CONSTITUTING MORTGAGE GROUPS

                                      None

<PAGE>

                                                                     SCHEDULE IV

                         MORTGAGE LOANS WITH LOST NOTES

                                      None

<PAGE>

                                                                      SCHEDULE V

                                   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:

Exceptions to Representation (ix)

--------------------------------------------------------------------------------
Loans                                    Exceptions
--------------------------------------------------------------------------------
Walgreens - Rocky Mount, NC              The Mortgaged Properties are subject
Walgreens - Casper, WY                   to the right of first refusal to
Walgreens - Greenville (Evans)           purchase the property in favor of
Walgreens - Apple Valley, CA Walgreens   (the tenant).
Walgreens - Miami, OK
Walgreens - Cable Road
Walgreens - Lubbock, TX
Walgreens - Long Beach
--------------------------------------------------------------------------------

--------
*  Seller has attempted to indicate the particular representation or warranty
   (by reference to the Section in which such representation or warranty
   appears) to which an exception primarily relates. Notwithstanding the
   foregoing, each exception is intended to qualify each representation or
   warranty to which it may relate, regardless whether such exception expressly
   refers to the Section in which the applicable representation or warranty
   appears.

For purposes of the MLPA and Exhibit A - Representations and Warranties of
Seller, Seller deems the term "commercial and multifamily" to include
manufactured housing communities.

In addition, all mortgage loan assignments and UCC financing statements
assignments were executed in favor of the Trustee and not the Purchaser.

Exceptions to Representation (xiv)

--------------------------------------------------------------------------------
Loans                                    Exceptions
--------------------------------------------------------------------------------
Robin Hill MHR & RV                      The property coverage is
                                         provided with a 90% co-insurance
                                         provision.
--------------------------------------------------------------------------------
Walgreens - Rocky Mount, NC              Mortgagor may provide insurance
Walgreens - Casper,WY                    through its tenant and the tenant
Walgreens - Greenville (Evans)           (Walgreens)on the property has the
Walgreens - Vernon, CT                   right to self insure in lieu of third
Walgreens - Apple Valley, CA             party insurance.
Walgreens - Miami, OK
Walgreens - Cable Road
Walgreens - Lubbock, TX
Walgreens - Long Beach
--------------------------------------------------------------------------------
Walgreens - Rocky Mount, NC              Mortgagor is not required to obtain
Walgreens - Greenville (Evans)           business interruption insurance.
                                         However, per the Walgreens lease, there
                                         is no rent abatement and the Tenant is
                                         not entitled to terminate after a
                                         casualty until after the 25th lease
                                         year.
--------------------------------------------------------------------------------
Walgreens - Vernon, CT                   Mortgagor is not required to obtain
                                         business interruption insurance.
                                         However, per the Walgreens lease there
                                         is no rent abatement in the event of a
                                         covered casualty to the Building and
                                         the Tenant is not entitled to
                                         terminate after a casualty until after
                                         the 25th year.  Additionally, a
                                         non-recourse carveout was added for
                                         any losses as a result of rent
                                         abatement.
--------------------------------------------------------------------------------
Walgreens - Casper, WY                   Mortgagor is not required to obtain
Walgreens - Apple Valley, CA             business interruption insurance.
Walgreens - Miami, OK                    However, per the Walgreens lease there
Walgreens - Cable Road                   is no rent abatement and the Tenant is
Walgreens - Lubbock, TX                  not entitled to terminate after a
Walgreens - Long Beach                   casualty until after the 25th lease
                                         year.  Additionally, a nonrecourse
                                         carveout was added for losses as a
                                         result of rent abatement.
--------------------------------------------------------------------------------
The Mill MHC                             The property insurance coverage that
                                         is carried has a 100% co-insurance
                                         provision.
--------------------------------------------------------------------------------
Durrett Village II Apartments            Mortgagor's insurance agent does not
Durrett Village I Apartments             issue additional insured forms, but a
                                         request has been made that the holder
                                         of the Mortgage Loan be added as an
                                         additional insured and as mortgagee
                                         loss payee.
--------------------------------------------------------------------------------

Exceptions to Representation (xvii)

--------------------------------------------------------------------------------
Loans                                    Exceptions
--------------------------------------------------------------------------------
FedEx - Midway                           There is a B Note held by CapLease,
                                         LP, a Delaware limited partnership in
                                         the amount of $2,736,615.33.  The B
                                         Note is secured by the same Mortgage
                                         as the Mortgage Loan and is subject to
                                         an intercreditor agreement.
--------------------------------------------------------------------------------
Eastgate Mall                            There is a B-1 Note in the amount of
                                         $3,550,000.00 and a B-2 Note in the
                                         amount of $7,750,000.00.  Both Notes
                                         are secured by the same Mortgage as
                                         the Mortgage Loan and are subject to
                                         an intercreditor agreement.  LaSalle
                                         is the initial holder of the B-1 Note,
                                         but LaSalle intends on selling such
                                         Note, and Mortgage Holdings/Eastgate,
                                         LLC is the holder of the B-2 Note.
                                         The B-2 Note may be defeased
                                         separately from the other 2 Notes.  In
                                         addition, Mortgagor may incur
                                         unsecured intercompany indebtedness in
                                         the maximum aggregate amount of
                                         $2,800,000.00, which intercompany
                                         indebtedness must be subordinate to
                                         the Mortgage Loan, provided that such
                                         amount is used solely for the
                                         operation of the Mortgaged Property
                                         and Mortgagor delivers a new
                                         non-consolidation opinion with respect
                                         to the future unsecured lender and
                                         Mortgagor.
--------------------------------------------------------------------------------

Exceptions to Representation (xxiii)

--------------------------------------------------------------------------------
Loans                                    Exceptions
--------------------------------------------------------------------------------
Campus View Apts.                        Equity owners in Mortgagor may pledge
                                         up to 49% (in the aggregate) of their
                                         membership interests in Mortgagor to
                                         secure mezzanine financing without
                                         Mortgage Loan holder's consent
                                         provided that control of Mortgagor
                                         does not change.  If more than 49% or
                                         a change in control occurs, such
                                         mezzanine financing and pledge is
                                         subject to the fulfillment of certain
                                         conditions set forth in the Mortgage
                                         Loan documents, which conditions
                                         include, among other items, the
                                         execution of an intercreditor
                                         agreement, satisfaction of debt
                                         service coverage ratio and loan to
                                         value tests, and that such debt will
                                         not result in a lien against the
                                         Mortgaged Property.
--------------------------------------------------------------------------------
Sanctuary of Woodshire                   Future mezzanine financing, secured by
                                         pledges of membership interests in
                                         Mortgagor, is permitted subject to the
                                         satisfaction of certain terms set
                                         forth in the Mortgage Loan documents,
                                         which terms include, among other
                                         terms, the execution of an
                                         intercreditor agreement, satisfaction
                                         of debt service coverage ratio and
                                         loan to value tests, and that such
                                         debt will not result in a lien against
                                         the Mortgaged Property.
--------------------------------------------------------------------------------
Sunshine Key                             Mortgagor has the right, subject to
                                         the Mortgage Loan Holder's consent,
                                         not to be unreasonably withheld, to
                                         transfer the gasoline station located
                                         on the Mortgaged Property and the
                                         utility facility servicing the
                                         Mortgaged Property to an affiliate
                                         entity(ies) provided that, among other
                                         conditions, such entity becomes
                                         jointly and severally liable with
                                         Mortgagor for the Mortgage Loan.
--------------------------------------------------------------------------------

Exceptions to Representation (xxiii) (cont'd)

--------------------------------------------------------------------------------
Sunburst North Ft. Myers                 Mortgagor has the right, subject to
Silver Dollar                            the Mortgage Loan Holder's consent,
Pacific Dunes                            not to be unreasonably withheld, to
Crystal River                            transfer the utility facilities
Sunburst Florida Keys                    servicing the Mortgaged Property to an
                                         affiliate provided that, among other
                                         conditions, such entity becomes
                                         jointly and severally liable with
                                         Mortgagor for the Mortgage Loan and
                                         that Mortgagor shall be able to use
                                         the utility facilities transferred to
                                         such affiliate.
--------------------------------------------------------------------------------
Sunshine Key                             Certain specified transfers within
Sunburst North Ft. Myers                 Mortgagor relating to such entity
Silver Dollar                            being a publicly traded company and/or
Pacific Dunes                            transfers to an affiliate thereof are
Crystal River                            permitted.
Sunburst Florida Keys
--------------------------------------------------------------------------------
Robin Hill MHR & RV                      One of the tenant in common borrower's
                                         ownership interest in the Mortgaged
                                         Property (and/or the ownership
                                         interests within such tenant in common
                                         borrower) may be transferred to the
                                         other tenant in common borrower or an
                                         affiliate thereof.  In addition,
                                         certain specified transfers within one
                                         of the tenant in common borrowers
                                         relating to such entity being a
                                         publicly traded company and/or
                                         transfers to an affiliate thereof are
                                         permitted.
--------------------------------------------------------------------------------

Exceptions to Representation (xxviii)

--------------------------------------------------------------------------------
Loans                                    Exceptions
--------------------------------------------------------------------------------
Hillcrest Apartment Community            A letter from the municipality stated
                                         there is no zoning code or
                                         classification since the Mortgaged
                                         Property was constructed prior to the
                                         adoption of the building code.
                                         Mortgagor and the principal executed a
                                         guaranty for any loss related to the
                                         enforcement of any municipal code.
--------------------------------------------------------------------------------

Exceptions to Representation (xxviii) (cont'd)

--------------------------------------------------------------------------------
City Centre Place                        Property is non-conforming with
                                         respect to shortage of 5 handicap
                                         parking spaces, but (a) a non-recourse
                                         carveout was added to indemnify the
                                         holder of the Mortgage Loan from any
                                         losses relating thereto, (b) law and
                                         ordinance insurance was obtained and
                                         (c) a 3.1 zoning endorsement with
                                         parking was obtained.  The parking is
                                         pursuant to a lease with the City of
                                         Las Vegas and Mortgagor.
--------------------------------------------------------------------------------
Shores at Lake Point                     No zoning letter or zoning title
                                         endorsement was received, but a
                                         certificate of occupancy exists and
                                         Mortgagor was required to obtain law
                                         and ordinance insurance.
--------------------------------------------------------------------------------
The Mill MHC                             Property is zoned agricultural, not
                                         residential; thus re-building rights
                                         may be limited if permanent
                                         improvements are destroyed.  However,
                                         since the Mortgaged Property is a
                                         manufactured housing community the
                                         primary permanent improvements are
                                         home pads, which would be very
                                         difficult to destroy.  Nonetheless,
                                         law and ordinance coverage was
                                         obtained.
--------------------------------------------------------------------------------

Exceptions to Representation (xxxii)

--------------------------------------------------------------------------------
Loans                                    Exceptions
--------------------------------------------------------------------------------
City Centre Place                        There is a pending SEC investigation
                                         against an official of Mortgagor and
                                         the principal (which is the sole
                                         manager of Mortgagor and a vice
                                         president of each tenant in
                                         common/borrower), but which does not
                                         specifically address the Mortgaged
                                         Property.  A non-recourse carveout
                                         provision was added to indemnify the
                                         holder of the Mortgage Loan from any
                                         losses resulting from such
                                         investigation.  There are also
                                         additional pending lawsuits against
                                         the principal, but they do not relate
                                         to the Mortgaged Property and are not
                                         deemed to materially and adversely
                                         affect Mortgagor's ability to perform.
--------------------------------------------------------------------------------

Exceptions to Representation (xxxii) (cont'd)

--------------------------------------------------------------------------------
Walgreens - Rocky Mount, NC              Mortgagor was involved as the
Walgreens - Greenville (Evans)           defendant in a breach of contract
                                         claim.  Mortgagor paid the claim
                                         ($250,000.00), but appealed the award
                                         for abuse of process and won.  The
                                         plaintiff asked for a review of the
                                         case, and such review is pending.
--------------------------------------------------------------------------------
Sunburst North Ft. Myers                 There was a consent order entered into
                                         between the State of Florida
                                         Department of Environmental Protection
                                         and Mortgagor relating to certain
                                         environmental remediation that needs
                                         to be done.  Mortgagor has deposited
                                         $325,015.63 with Seller to assure that
                                         such remediation is completed (also
                                         relates representation (xix)).
--------------------------------------------------------------------------------

Exceptions to Representation (xl)

--------------------------------------------------------------------------------
Loans                                    Exceptions
--------------------------------------------------------------------------------
All LaSalle Mortgage Loans               Generally, the Mortgage Loan documents
                                         do not have a non-recourse carve-out
                                         for "other intentional material
                                         misrepresentation," but they do have a
                                         non-recourse carve-out for "material
                                         misrepresentation".
--------------------------------------------------------------------------------
Pleasant Hill Square                     Mortgagor is not liable for
West River Crossing                      "misapplication or misappropriation",
                                         but instead is liable for
                                         "misapplication or conversion" of
                                         insurance proceeds, condemnation
                                         awards or rents after an event of
                                         default.
--------------------------------------------------------------------------------
Town Hall Terrace                        Mortgagor is only liable for
Sunshine Key                             misapplication or misappropriation of
Sunburst North Ft Myers                  rents, proceeds or other funds
Silver Dollar                            received after an "Event of Default"
Pacific Dunes                            under the Mortgage Loan documents.
Crystal River
Sunburst Florida Keys
--------------------------------------------------------------------------------
Robin Hill MHR & RV                      Mortgagor obtained environmental
                                         insurance in lieu of signing the
                                         Hazardous Indemnification Agreement.
                                         The policy limits are $3.7 million.
--------------------------------------------------------------------------------
Eastgate Mall                            The nonrecourse carve out regarding
                                         rents, insurance and condemnation
                                         award is only for "intentional
                                         misapplication or conversion" and not
                                         for "misapplication or
                                         misappropriation."
--------------------------------------------------------------------------------

Exceptions to Representation (xli)

--------------------------------------------------------------------------------
Loans                                    Exceptions
--------------------------------------------------------------------------------
Lakes IV Apartments                      The Mortgaged Property was recently
                                         subdivided, and the tax parcel
                                         identification number for the
                                         Mortgaged Property contains other
                                         property not part of the subject
                                         premises.  Mortgagor is required to
                                         provide a separate tax parcel number
                                         and separate tax parcel endorsement
                                         prior to January 5, 2005.
--------------------------------------------------------------------------------
Weinecke Court                           A small portion of the adjoining land
                                         is included in one of the property tax
                                         identification numbers.  The title
                                         company has nonetheless issued a
                                         separate tax parcel endorsement and
                                         Mortgagor has commenced the process of
                                         rectifying this matter.  Mortgagor has
                                         a surveyor preparing a new plat for
                                         subdivision.  Upon completion of the
                                         survey, Mortgagor will prepare a
                                         petition to subdivide the tax
                                         identification number.
--------------------------------------------------------------------------------
FedEx Midway                             The Mortgaged Property has been
                                         legally subdivided, however there is
                                         not a separate tax lot for the
                                         Mortgaged Property.  Mortgagor and
                                         principal have agreed to indemnify the
                                         holder of the Mortgage Loan for any
                                         losses that the Mortgage Loan holder
                                         may incur if Mortgagor fails to obtain
                                         a separate tax parcel number for the
                                         Mortgaged Property.  Tenant is
                                         obligated to pay the real estate taxes
                                         for the Mortgaged Property.
--------------------------------------------------------------------------------
Durrett Village I Apartments             A number of corrective deeds were
Durrett Village II Apartments            required to correct property
                                         boundaries between the Mortgaged
                                         Property and other properties
                                         controlled by affiliates of the
                                         Mortgagor's principal.
                                         Notwithstanding that the legal
                                         description was modified immediately
                                         prior to closing, a separate tax
                                         parcel endorsement was issued and the
                                         real estate tax reserve was increased
                                         to anticipate possible adjustment to
                                         the real estate taxes.  Mortgagor was
                                         required to obtain on a post-closing
                                         basis confirmation of the tax
                                         identification numbers and associated
                                         real estate taxes within 120 days of
                                         closing of the Mortgage Loan.
--------------------------------------------------------------------------------

Exceptions to Representation (xlii)

--------------------------------------------------------------------------------
Loans                                    Exceptions
--------------------------------------------------------------------------------
Sunshine Key                             A portion of Mortgagor's real estate
                                         is a leasehold interest (the ground
                                         lease is with the State of Florida and
                                         is for a fishing pier).  The ground
                                         lease is recorded, but other than that
                                         it does not comply with the rest of
                                         the reps under section (xliii);
                                         however, such portion of land is not
                                         an income producing portion of the
                                         Mortgaged Property and is not
                                         essential to the operation of the
                                         Mortgaged Property.
--------------------------------------------------------------------------------
Eastgate Mall                            The expiration of the ground lease
                                         term is January 31, 2022 which is 12
                                         years after the maturity date of the
                                         Mortgage Loan (12/1/09).  In addition,
                                         the ground lease does not specifically
                                         permit the holder of the Mortgage Loan
                                         to control the receipt and
                                         distribution of insurance proceeds and
                                         condemnation awards.
--------------------------------------------------------------------------------

<PAGE>

                                                                       EXHIBIT A

                   REPRESENTATIONS AND WARRANTIES OF SELLER
                          REGARDING THE MORTGAGE LOANS

      The Mortgage Loan Seller represents and warrants with respect to each
Mortgage Loan that, as of the date specified below or, if no such date is
specified, as of the Closing Date, except as set forth on Schedule V hereto:

            (i) Mortgage Loan Schedule. The information pertaining to each
      Mortgage Loan set forth in the Mortgage Loan Schedule was true and correct
      in all material respects as of the Cut-off Date.

            (ii) Legal Compliance. As of the date of its origination, such
      Mortgage Loan complied in all material respects with, or was exempt from,
      all requirements of federal, state or local law relating to the
      origination of such Mortgage Loan.

            (iii) Good Title; Conveyance. Immediately prior to the sale,
      transfer and assignment to the Company, the Mortgage Loan Seller had good
      title to, and was the sole owner of, each Mortgage Loan, and the Mortgage
      Loan 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 (other than the rights to servicing and
      related compensation as reflected in the Agreement to Appointment of
      Servicer). The Mortgage Loan Seller has validly and effectively conveyed
      to the Company all legal and beneficial interest in and to such Mortgage
      Loan.

            (iv) Future Advances. The proceeds of such Mortgage Loan have been
      fully disbursed and there is no requirement for future advances
      thereunder; with respect to any mortgagee requirements for construction or
      maintenance of on or off site improvements for which an escrow has been
      established, any disbursement of such escrowed funds have satisfied the
      requirements of the related Mortgage Loan documents.

            (v) Legal, Valid and Binding Obligations. Each Mortgage Note and the
      related Mortgage, Assignment of Leases (if any) and other agreement
      executed in connection with such Mortgage Loan are legal, valid and
      binding obligations of the related mortgagor (subject to any non-recourse
      provisions therein and any state anti-deficiency legislation or market
      value limit deficiency legislation), enforceable in accordance with their
      terms, except (i) that certain provisions contained in such Mortgage Loan
      documents are or may be unenforceable in whole or in part under applicable
      state or federal laws, but neither the application of any such laws to any
      such provision nor the inclusion of any such provisions renders any of the
      Mortgage Loan documents invalid as a whole and such Mortgage Loan
      documents taken as a whole are enforceable to the extent necessary and
      customary for the practical realization of the rights and benefits
      afforded thereby and (ii) as such enforcement may be limited by
      bankruptcy, insolvency, receivership, reorganization, moratorium,
      redemption, liquidation or other laws affecting the enforcement of
      creditors' rights generally, or by general principles of equity
      (regardless of whether such enforcement is considered in a proceeding in
      equity or at law).

            (vi) Assignment of Leases and Rents. There exists as part of the
      related Mortgage File an Assignment of Leases either as a separate
      document or as part of the Mortgage. Each related Assignment of Leases
      creates a valid, collateral or first priority assignment of, or a valid
      perfected first priority security interest in, the related Mortgagor's
      right to receive payments due under the leases or other agreements
      pursuant to which any Person is entitled to occupy, use or possess any
      portion of the Mortgaged Property, subject to any license granted to the
      related Mortgagor to exercise certain rights and to perform certain
      obligations of the lessor under such leases and subject to the limitations
      described in Paragraph (v).

            (vii) Offsets or Defenses. Subject to the limitations described in
      Paragraph (v), as of the Mortgage Loan origination date there was and as
      of the Cut-off Date there is no valid offset, defense, counterclaim or
      right to rescission with respect to any of the related Mortgage Note,
      Mortgage(s) or other agreements executed in connection therewith.

            (viii) Assignment of Mortgage and Assignment of Assignment of
      Leases. Subject to the limitations described in Paragraph (v), each
      related assignment of Mortgage and assignment of Assignment of Leases from
      the Mortgage Loan Seller to the Trustee constitutes the legal, valid and
      binding assignment from the Mortgage Loan Seller. Each related Mortgage,
      Mortgage Note and Assignment of Leases is freely assignable upon notice to
      the Mortgagor and such notice has been provided.

            (ix) Mortgage Lien; Title Exceptions. Each related Mortgage is a
      legal, valid and enforceable first lien on the related Mortgaged Property
      or Ground Lease, as applicable, including all buildings and improvements
      thereon, subject to the exceptions set forth in Paragraph (v) and the
      following title exceptions (each such title exception, a "Title
      Exception", and collectively, the "Title Exceptions"): (a) the lien of
      current real property taxes, ground rents, water charges, sewer rents and
      assessments not yet delinquent and payable, (b) covenants, conditions and
      restrictions, rights of way, easements and other matters of public record,
      (c) the exceptions (general and specific) and exclusions set forth in the
      Title Insurance Policy (defined in (xiii) below), (d) other matters to
      which like properties are commonly subject, (e) the right of tenants
      (whether under ground leases, space leases or operating leases) at the
      Mortgaged Property to remain following a foreclosure or similar proceeding
      (provided that such tenants are performing under such leases) and (f) if
      such Mortgage Loan is cross-collateralized with any other Mortgage Loan,
      the lien of the Mortgage for such other Mortgage Loan, none of which,
      individually or in the aggregate, materially and adversely interferes with
      (1) the current use or operation of the Mortgaged Property, (2) the
      security intended to be provided by such Mortgage, (3) the Mortgagor's
      ability to pay its obligations under the Mortgage Loan when they become
      due, or (4) the value of the Mortgaged Property. Except with respect to
      cross-collateralized and cross-defaulted Mortgage Loans, there are no
      mortgage loans that are senior or pari passu with respect to the related
      Mortgaged Property or such Mortgage Loan.

            (x) UCC Financing Statements. UCC Financing Statements have been
      filed and/or recorded (or, if not filed and/or recorded, have been
      submitted in proper form for filing and recording) in the appropriate
      public filing and recording offices necessary to perfect a valid security
      interest in all items of personal property described therein owned by a
      Mortgagor and located on each such Mortgaged Property (other than any
      personal property subject to a purchase money security interest or a sale
      and leaseback financing arrangement permitted under the terms of such
      Mortgage Loan or any other personal property leases applicable to such
      personal property), to the extent perfection may be effected pursuant to
      applicable law by recording or filing and subject to the limitations
      described in Paragraph (v), the Mortgages, security agreements, chattel
      Mortgages or equivalent documents related to and delivered in connection
      with the related Mortgage Loans establish and create a valid and
      enforceable lien and security interest on the personal property described
      above. In the case of a Mortgaged Property operated as a hotel, (a) such
      personal property includes all personal property that a prudent
      institutional lender making a similar mortgage loan on a like property
      would deem reasonably necessary to operate the related Mortgaged Property
      as it is currently being operated, (b) the related perfected security
      interest is prior to any other security interest that can be perfected by
      such UCC filing, except for permitted purchase money security interests
      and leases; provided that any such lease has been pledged or assigned to
      the lender and its assigns, and (c) the related loan documents contain
      such provisions as are necessary and UCC Financing Statements have been
      filed or submitted for filing as necessary, in each case, to perfect a
      valid first priority security interest in the related revenues with
      respect to such Mortgaged Property. Notwithstanding any of the foregoing,
      no representation is made as to the perfection of any security interest in
      rents or other personal property to the extent that possession or control
      of such items or actions other than the filing of UCC Financing Statements
      are required in order to effect such perfection.

            (xi) Taxes and Assessments. All real estate taxes and governmental
      assessments, fees, environmental charges or water or sewer bills that
      prior to the Cut-off Date have become delinquent in respect of each
      related Mortgaged Property have been paid as of the Cut-off Date, or if in
      dispute, an escrow of funds in an amount sufficient to cover such payments
      has been established. Such taxes and assessments shall not be considered
      delinquent or unpaid until the date on which interest or penalties may
      first be payable thereon.

            (xii) Property Condition; Condemnation Proceedings. To the Mortgage
      Loan Seller's knowledge, after conducting due diligence consistent with
      the practice of institutional lenders generally for properties of the same
      type as the related Mortgaged Property, each related Mortgaged Property as
      of origination, and to Mortgage Loan Seller's actual knowledge as of the
      Cut-Off Date, was free and clear of any material damage (other than
      deferred maintenance for which escrows were established at origination)
      that would affect materially and adversely the value, use or operation of
      such Mortgaged Property as security for the Mortgage Loan; and to the
      Mortgage Loan Seller's knowledge as of the cut-off date, there was no
      proceeding pending for the total or partial condemnation of such Mortgaged
      Property.

            (xiii) Title Insurance. The Mortgage Loan Seller has received an
      ALTA lender's title insurance policy or a comparable form of lender's
      title insurance policy (or a "proforma" title policy or a commitment
      "marked up" at the closing of the related Mortgage Loan or escrow
      instructions binding on the title insurer irrevocably obligating the title
      insurer to issue such title insurance policy) as adopted in the applicable
      jurisdiction (the "Title Insurance Policy"), insuring the Seller, its
      successors and assigns, subject only to the Title Exceptions, that the
      related Mortgage is a valid first lien in the original principal amount of
      the related Mortgage Loan on the Mortgagor's fee simple interest (or, if
      applicable, leasehold interest) in the Mortgaged Property. No claims have
      been made under such Title Insurance Policy. Such Title Insurance Policy
      is in full force and effect and all premiums thereon have been paid. The
      Mortgage Loan Seller has not done, by act or omission, anything that would
      impair the coverage under such Title Insurance Policy. The insurer issuing
      such policy is either (x) a nationally-recognized title insurance company
      or (y) qualified to do business in the jurisdiction in which the related
      Mortgaged Property is located to the extent required. Such Title Insurance
      Policy contains no material exclusions for, or alternatively, it insures
      (unless such coverage is not available in the jurisdiction in which the
      Mortgaged Property is located) (a) access to public roads or (b) against
      any loss due to encroachments of any material portion of the improvements
      thereon.

            (xiv) Insurance. As of the Mortgage Loan origination date, the
      related Mortgaged Property was insured by all insurance coverage required
      under the related Mortgage or loan agreement, which insurance covered such
      risks as were customarily acceptable to prudent commercial and multifamily
      mortgage lending institutions lending on the security of property
      comparable to the related Mortgaged Property in the jurisdiction in which
      such Mortgaged Property is located, including (a) a fire and extended
      perils insurance policy in an amount (subject to a customary deductible)
      at least equal to the lesser of (i) replacement cost of improvements
      located on such Mortgaged Property, or (ii) the initial principal balance
      of the Mortgage Loan, and in any event, the amount necessary to avoid the
      operation of any co-insurance provisions, (b) business interruption or
      rental loss insurance in an amount at least equal to 12 months of
      operations of the related Mortgaged Property, and (c) comprehensive
      general liability insurance in such amounts as are generally required by
      reasonably prudent lenders for similar properties. As of the Cut-off Date,
      to the actual knowledge of the Mortgage Loan Seller, (x) such insurance
      was in full force and effect, and (y) no notice of termination or
      cancellation with respect to any such insurance policy has been received
      by the Mortgage Loan Seller. Except for certain amounts not greater than
      amounts which would be considered prudent by an institutional commercial
      mortgage lender with respect to a similar mortgage loan and which are set
      forth in the related Mortgage, any insurance proceeds in respect of a
      casualty loss will be applied either to (1) the repair or restoration of
      the related Mortgaged Property, or (2) the reduction of the outstanding
      principal balance of the Mortgage Loan, subject in either case to state
      law and requirements with respect to leases at the related Mortgaged
      Property and to other exceptions customarily provided for by prudent
      institutional lenders for similar loans. The insurer with respect to each
      policy is qualified to write insurance in the relevant jurisdiction to the
      extent required. The insurance policies contain a standard mortgagee
      clause naming mortgagee, its successors and assigns as loss payees in the
      case of property insurance policies and additional insureds in the case of
      liability insurance policies and provide that they are not terminable and
      may not be reduced below replacement cost without 30 days prior written
      notice to the mortgagee (or, with respect to non-payment, 10 days prior
      written notice to the mortgagee) or such lesser period as prescribed by
      applicable law. Each Mortgage or loan agreement requires that the
      Mortgagor maintain insurance as described above.

            (xv) Material Defaults. (A) Other than payments due but not yet 30
      days or more delinquent, to the Seller's actual knowledge, based on due
      diligence customarily performed in connection with the servicing of
      comparable mortgage loans, (i) there is no material default, breach,
      violation or event of acceleration existing under the related Mortgage
      Note or Mortgage, (ii) since the date of origination of such Mortgage
      Loan, there has been no declaration by the Mortgage Loan Seller of an
      event of acceleration under the related Mortgage or Mortgage Note, and
      (iii) Mortgage Loan Seller has not received notice of any 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
      constitute a material default, breach, violation or event of acceleration
      under any of such documents; (B) the Mortgage Loan Seller has not waived
      any material default, breach, violation or event of acceleration under the
      Mortgage Note or Mortgage; and (C) under the terms of each Mortgage Loan,
      no Person other than the holder of the Mortgage Note may declare an event
      of default or accelerate the related indebtedness under such Mortgage
      Loan, Mortgage Note or Mortgage, 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 representation and
      warranty made by the Seller elsewhere in this Exhibit A, or in any of the
      exceptions to the representations and warranties in Schedule V hereto.

            (xvi) Payment Record. As of the Cut-Off Date, each Mortgage Loan is
      not, and in the prior 12 months (or since the date of origination if such
      Mortgage Loan has been originated within the past 12 months) has not been,
      30 days or more past due in respect of any Scheduled Payment.

            (xvii) Additional Collateral. The related Mortgage does not provide
      for or permit, without the prior written consent of the holder of the
      Mortgage Note, the related Mortgaged Property to secure any other
      promissory note or obligation (other than any other Mortgage Loan or any
      Companion Loan) and the Mortgage Note is not secured by any collateral
      that is not included in the Trust Fund.

            (xviii) Qualified Mortgage. 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 Regulations 1.860G-2(f)(2)
      that treats a defective obligation as a qualified mortgage, or any
      substantially similar successor provision). Each Mortgage Loan is directly
      secured by a Mortgage on a commercial property or a multifamily
      residential property, and either (1) substantially all of the proceeds of
      such Mortgage Loan were used to acquire, improve or protect the portion of
      such commercial or multifamily residential property that consists of an
      interest in real property (within the meaning of Treasury Regulations
      Sections 1.856-3(c) and 1.856-3(d)) and such interest in real property was
      the only security for such Mortgage Loan as of the Testing Date (as
      defined below), or (2) the fair market value of the interest in real
      property which secures such Mortgage Loan was at least equal to 80% of the
      principal amount of the Mortgage Loan (a) as of the Testing Date, or (b)
      as of the Closing Date. For purposes of the previous sentence, (1) the
      fair market value of the referenced interest in real property shall first
      be reduced by (a) the amount of any lien on such interest in real property
      that is senior to the Mortgage Loan, and (b) a proportionate amount of any
      lien on such interest in real property that is on a parity with the
      Mortgage Loan, and (2) the "Testing Date" shall be the date on which the
      referenced Mortgage Loan was originated unless (a) such Mortgage Loan was
      modified after the date of its origination in a manner that would cause
      "significant modification" of such Mortgage Loan within the meaning of
      Treasury Regulations Section 1.1001-3(b), and (b) such "significant
      modification" did not occur at a time when such Mortgage Loan was in
      default or when default with respect to such Mortgage Loan was reasonably
      foreseeable. However, if the referenced Mortgage Loan has been subjected
      to a "significant modification" after the date of its origination and at a
      time when such Mortgage Loan was not in default or when default with
      respect to such Mortgage Loan was not reasonably foreseeable, the Testing
      Date shall be the date upon which the latest such "significant
      modification" occurred.

            (xix) Environmental. One or more Phase I environmental site
      assessments or updates thereof (each a "Phase I") meeting ASTM
      requirements were performed by an environmental consulting firm
      experienced in environmental matters and properly licensed, if applicable,
      and independent of the Mortgage Loan Seller and the Mortgage Loan Seller's
      affiliates with respect to each related Mortgaged Property within the 18
      months prior to the Closing Date and the Mortgage Loan Seller, having made
      no independent inquiry other than to review the Phase I prepared in
      connection with the assessment(s) referenced herein, has no knowledge and
      has received no notice of any material and adverse environmental condition
      or circumstance affecting such Mortgaged Property that was not disclosed
      in such report(s). With respect to any material and adverse environmental
      matters disclosed in such Phase I, then either (i) the same have been
      remediated in all material respects, (ii) sufficient funds have been
      escrowed for purposes of effecting such remediation, (iii) the related
      mortgagor or other responsible party is currently taking or required to
      take such actions, if any, with respect to such matters as have been
      recommended by the Phase I or required by the applicable governmental
      authority, (iv) an operations and maintenance plan has been or will be
      implemented, (v) environmental insurance has been obtained with respect to
      such matters, subject to customary limitations, (vi) a "no further action"
      letter or other evidence reasonably acceptable to a prudent commercial
      mortgage lender has been obtained stating that the applicable governmental
      authority had no current intention of taking any action, and are not
      requiring the taking of any action, in respect of such condition or
      circumstance, or (vii) such conditions or circumstances were investigated
      further and, based upon such additional investigation, a qualified
      environmental consultant recommended no further investigation or
      remediation. Each Mortgage Loan requires the related mortgagor to comply,
      and cause the related Mortgaged Property to be in compliance, with all
      applicable federal, state and local environmental laws and regulations.

            (xx) Customary Mortgage Provisions. Each related Mortgage contains
      customary and enforceable provisions such as to render the rights and
      remedies of the holder thereof adequate for the practical realization
      against the Mortgaged Property of the benefits of the security, including
      realization by judicial or, if applicable, non-judicial foreclosure,
      subject to the limitations described in Paragraph (v).

            (xxi) Bankruptcy. As of origination, and to the actual knowledge of
      the Mortgage Loan Seller as of the Cut-off Date, no Mortgagor is a debtor
      in any state or federal bankruptcy or insolvency proceeding.

            (xxii) Whole Loan. Each Mortgage Loan, when taken together with its
      related Companion Loan, if applicable, is a whole loan, contains no equity
      participation by the lender or shared appreciation feature and does not
      provide for any contingent or additional interest in the form of
      participation in the cash flow of the related Mortgaged Property or
      provide for negative amortization. The Mortgage Loan Seller holds no
      equity interest in any Mortgagor.

            (xxiii) Transfers and Subordinate Debt. Subject to certain
      exceptions which are customarily acceptable to commercial and multifamily
      mortgage lending institutions lending on the security of property
      comparable to the related Mortgaged Property, each related Mortgage or
      loan agreement contains provisions for the acceleration of the payment of
      the unpaid principal balance of such Mortgage Loan if, without complying
      with the requirements of the Mortgage or loan agreement, the related
      Mortgaged Property, or any controlling interest in the related Mortgagor,
      is directly transferred or sold (other than by reason of family and estate
      planning transfers and transfers of less than a controlling interest in a
      mortgagor, or by reason of a substitution or release of collateral within
      the parameters of Paragraph (xxvi) below), or encumbered by a subordinate
      lien or security interest against the related Mortgaged Property, other
      than any existing permitted additional debt.

            (xxiv) Waivers and Modifications. Except as set forth in the
      Mortgage File, the terms of the related Mortgage Note and Mortgage(s) have
      not been waived, modified, altered, satisfied, impaired, canceled,
      subordinated or rescinded in any manner which materially interferes with
      the security intended to be provided by such Mortgage.

            (xxv) Inspection. Each related Mortgaged Property was inspected by
      or on behalf of the related originator or an affiliate within the 18
      months prior to the Closing Date.

            (xxvi) Releases. Except as set forth below, since origination, no
      material portion of the related Mortgaged Property has been released from
      the lien of the related Mortgage, in any manner which materially and
      adversely affects the value, use or operation of the Mortgage Loan or
      materially interferes with the security intended to be provided by such
      Mortgage. The terms of the related Mortgage do not provide for release of
      any material portion of the Mortgaged Property from the lien of the
      Mortgage except (a) in consideration of payment therefor equal to not less
      than the related allocated loan amount of such Mortgaged Property, (b)
      upon payment in full of such Mortgage Loan, (c) for Mortgage Loans that
      permit defeasance, by means of substituting the Mortgaged Property (or, in
      the case of a Mortgage Loan secured by multiple Mortgaged Properties, one
      or more of such Mortgaged Properties) for "government securities" (within
      the meaning of Section 2(a)(16) of the Investment Company Act of 1940, as
      amended) sufficient to pay the Mortgage Loans in accordance with their
      terms, (d) for Mortgage Loans which permit the related Mortgagor to
      substitute a replacement property, (e) for releases not considered
      material for purposes of underwriting the Mortgage Loan, or (f) for
      releases that are conditional upon the satisfaction of certain
      underwriting and legal requirements and require payment of a release price
      that represents adequate consideration for such Mortgaged Property.

            (xxvii) Defeasance. Each Mortgage Loan that permits defeasance
      either (i) requires the prior written consent of, and compliance with, the
      conditions set by, the holder of the Mortgage Loan, (ii) requires
      confirmation from the rating agencies rating the certificates of any
      securitization transaction in which such Mortgage Loan is included that
      such defeasance will not cause the downgrade, withdrawal or qualification
      of the then current ratings of such certificates, or (iii) requires that
      (A) defeasance must occur in accordance with the requirements of, and
      within the time permitted by, applicable REMIC rules and regulations, (B)
      the replacement collateral consists of "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 such
      Mortgage Loan when due, (C) independent certified public accountants
      certify that such government securities are sufficient to make such
      payments, and (D) counsel provide an opinion stating that upon exchange of
      the collateral, the Trustee will have a first priority perfected security
      interest in the government securities. Notwithstanding the foregoing, some
      of the Mortgage Loan documents may not affirmatively contain all such
      requirements, but such Mortgage Loan documents require that the borrower
      comply with the REMIC Provisions and/or deliver a REMIC Opinion of
      Counsel. A Mortgage Loan that permits defeasance provides that the related
      borrower is responsible for all reasonable costs incurred in connection
      with the defeasance of the Mortgage Loan.

            (xxviii) Zoning. To the Mortgage Loan Seller's knowledge, as of the
      date of origination of such Mortgage Loan, based on due diligence
      considered reasonable by prudent commercial conduit mortgage lenders,
      taking into account the location of the Mortgaged Property, and, to the
      Mortgage Loan Seller's actual knowledge, as of the Cut-off Date, there are
      no violations of any applicable zoning ordinances, building codes and land
      laws applicable to the Mortgaged Property or the use and occupancy thereof
      which (i) are not insured by the related Title Insurance Policy or a law
      and ordinance insurance policy, or (ii) would have a material adverse
      effect on the value, use, operation or net operating income of the
      Mortgaged Property.

            (xxix) Encroachments. To the Mortgage Loan Seller's knowledge based
      on surveys and/or the Title Insurance Policy, none of the improvements
      which were included for the purposes of determining the appraised value of
      the related Mortgaged Property at the time of the origination of the
      Mortgage Loan lies outside of the boundaries and building restriction
      lines of such property (except Mortgaged Properties for which the use or
      improvements are legally non-conforming) to an extent which would have a
      material adverse affect on the related Mortgagor's value, use and
      operation of such Mortgaged Property (unless affirmatively covered by the
      Title Insurance Policy) and no improvements on adjoining properties
      encroached upon such Mortgaged Property to any material extent (unless
      affirmatively covered by the Title Insurance Policy).

            (xxx) Single Purpose Entity. Each Mortgagor with respect to a
      Mortgage Loan with a principal balance, as of the Cut-off Date, in excess
      of 5% of the aggregate principal balance of the Mortgage Loans included in
      the Trust Fund is an entity whose organizational documents provide that it
      is, and at least so long as the Mortgage Loan is outstanding will continue
      to be, a single purpose entity. (For this purpose, "single-purpose entity"
      shall mean a person, other than an individual, that (a) does not engage in
      any business unrelated to the related Mortgaged Property or its financing,
      (b) does not have any significant assets other than those related to its
      interest in the Mortgaged Property or its financing, (c) does not have any
      indebtedness (other than as permitted by the related Mortgage or another
      document contained in the Mortgage Loan File), (d) has its own books and
      records separate and apart from any other Person, and (e) holds itself out
      as being a legal entity, separate and apart from any other Person.

            (xxxi) Advances After Origination. No advance of funds has been made
      after origination, directly or indirectly, by the Mortgage Loan Seller to
      the Mortgagor and, to the Mortgage Loan Seller's knowledge, no funds have
      been received from any person other than the Mortgagor, for or on account
      of payments due on the Mortgage Note or the Mortgage.

            (xxxii) Litigation Or Other Proceedings. As of the Mortgage Loan
      origination date there was and, to the Mortgage Loan Seller's knowledge,
      as of the Cut-off Date, there is no pending action, suit or proceeding
      against the Mortgagor or the related Mortgaged Property that could
      reasonably be expected to materially and adversely affect either such
      Mortgagor's performance under the related Mortgage Loan documents or the
      holders of the Certificates.

            (xxxiii) Usury. The Mortgage Rate (exclusive of any default
      interest, late charges or prepayment premiums) of such Mortgage Loan is a
      fixed rate, and as of the date of origination, complied with or was exempt
      from applicable state or federal laws, regulations and other requirements
      pertaining to usury.

            (xxxiv) Trustee Under Deed Of Trust. As of the Mortgage Loan
      origination date and as of the Cut-Off Date, if the related Mortgage is a
      deed of trust, a trustee, duly qualified under applicable law to serve as
      such, either has been properly designated and serving under such Mortgage
      or may be substituted in accordance with the Mortgage and applicable law,
      and no fees or expenses are or will become payable to the trustee under
      the deed of trust, except in connection with the sale or release of the
      Mortgaged Property following a default in payment of the Mortgage Loan.

            (xxxv) Other Collateral; Cross-Collateralization. Except with
      respect to any Whole Loan, the related Mortgage Note is not secured by any
      collateral that secures a loan that is not in the Trust Fund and each
      Mortgage Loan that is cross-collateralized is cross-collateralized only
      with other Mortgage Loans sold pursuant to this Agreement.

            (xxxvi) Flood Insurance. The improvements located on the Mortgaged
      Property are either not located in a federally designated special flood
      hazard area, or if so located, then either (i) flood insurance is not
      required by the Federal Emergency Management Agency or (ii) the Mortgagor
      is required to maintain, and as of origination did maintain, or the
      Mortgagee maintains, flood insurance with respect to such improvements.

            (xxxvii) Escrow Deposits. All escrow deposits and payments required
      pursuant to the Mortgage Loan to be deposited with the Mortgage Loan
      Seller or its agent have been so deposited, are in the possession, or
      under the control, of the Mortgage Loan Seller or its agent and there are
      no deficiencies in connection therewith.

            (xxxviii) Licenses and Permits. To the Mortgage Loan Seller's
      knowledge, based on due diligence customarily performed in the origination
      of comparable mortgage loans by prudent commercial conduit mortgage
      lenders, taking into account the location of the Mortgaged Property, (a)
      as of the date of origination of the Mortgage Loan, the related Mortgagor,
      the related lessee, franchisee or operator was in possession of all
      material licenses, permits and authorizations then required for use of the
      related Mortgaged Property, and in the case of a Mortgaged Property
      operated as a hotel, the franchise agreement, if any, is in full force and
      effect, and no default, or event that, with the passage of time or the
      giving of notice or both, would constitute a default, had occurred under
      such franchise agreement, and, (b) as of the Cut-Off Date, the Mortgage
      Loan Seller has no knowledge that the related Mortgagor, the related
      lessee, franchisee or operator was not in possession of such licenses,
      permits and authorizations.

            (xxxix) Servicing and Collection Practices. To the Mortgage Loan
      Seller's knowledge, the servicing and collection practices used by the
      Mortgage Loan Seller with respect to the Mortgage Loan have been in all
      respects legal and have met customary industry standards for the servicing
      of commercial mortgage loans for commercial mortgage loan conduit
      programs.

            (xl) Non-Recourse Exceptions. The Mortgage Loan documents for each
      Mortgage Loan provide that the Mortgage Loan is generally non-recourse to
      the related Mortgagor, except that the related Mortgagor shall be liable
      to the lender for losses incurred due to (i) fraud and/or other
      intentional material misrepresentation, (ii) the misapplication or
      misappropriation of rents collected in advance or received by the related
      Mortgagor after the occurrence of an event of default, insurance proceeds
      or condemnation awards or (iii) any breach of the environmental covenants
      in the related Mortgage Loan documents.

            (xli) Separate Tax Lots. Each Mortgaged Property constitutes one or
      more separate tax lots (or will constitute separate tax lots when the next
      tax maps are issued) or is subject to an endorsement under the related
      Title Insurance Policy insuring for losses arising from any claim that the
      Mortgaged Property is not one or more separate tax lots.

            (xlii) Ground Leases. Each Mortgage Loan, other than the Mortgage
      Loans listed on Exhibit C hereto, is secured by the fee interest in the
      related Mortgaged Property. With respect to the Mortgage Loans listed on
      Exhibit C, the Mortgage Loans are secured by the interest of the related
      Mortgagor as a lessee under a ground lease of a Mortgaged Property (a
      "Ground Lease") (the term Ground Lease shall mean such ground lease, all
      written amendments and modifications, and any related estoppels or
      agreements from the ground lessor and, in the event the borrower's
      interest is a ground subleasehold, shall also include not only such ground
      sublease but also the related ground lease), but not by the related fee
      interest in such Mortgaged Property and:

            (A) Such Ground Lease or a memorandum thereof has been or will be
            duly recorded or submitted for recording as of the Closing Date and
            such Ground Lease permits the interest of the lessee thereunder to
            be encumbered by the related Mortgage or, if consent of the lessor
            is required, such consent has been obtained prior to the Closing
            Date;

            (B) Such Ground Lease (i) is not subject to any liens or
            encumbrances superior to, or of equal priority with, the related
            Mortgage, other than the related fee interest in such Mortgaged
            Property and the Title Exceptions, or (ii) is subject to a
            subordination, non-disturbance and attornment agreement to which the
            mortgagee on the lessor's fee interest in the Mortgaged Property is
            subject;

            (C) Upon the foreclosure of the Mortgage Loan (or acceptance of a
            deed in lieu thereof), the Mortgagor's interest in such Ground Lease
            is assignable to the mortgagee and its successors and assigns upon
            notice to, but without the consent of, the lessor thereunder (or, if
            such consent is required, it has been obtained prior to the Closing
            Date);

            (D) Such Ground Lease is in full force and effect, and as of the
            Closing Date, the Mortgage Loan Seller has not received notice (nor
            is the Mortgage Loan Seller otherwise aware) that any default has
            occurred under such Ground Lease;

            (E) Such Ground Lease requires that if the mortgagee under such
            Mortgage Loan has provided the lessor with notice of its lien, then
            such lessor must give notice of any default by the lessee to the
            mortgagee, and such Ground Lease, or an estoppel letter received by
            the mortgagee from the lessor, further provides that no notice of
            termination given under such Ground Lease is effective against such
            mortgagee unless a copy has been delivered to such mortgagee in the
            manner described in such Ground Lease;

            (F) The mortgagee under such Mortgage Loan is permitted a reasonable
            opportunity (including such time as is necessary to obtain
            possession by foreclosure or otherwise) to cure any default under
            such Ground Lease that is curable after the receipt of written
            notice of any such default, before the lessor thereunder may
            terminate such Ground Lease;

            (G) Such Ground Lease has an original term (together with any
            extension options, whether or not currently exercised, set forth
            therein all of which can be exercised by the mortgagee if the
            mortgagee acquires the lessee's rights under the Ground Lease) that
            extends not less than 20 years beyond the stated maturity date of
            the related Mortgage Loan (or, with respect to any Mortgage Loan
            with an Anticipated Repayment Date, 10 years);

            (H) Such Ground Lease requires the lessor to enter into a new lease
            with the mortgagee under such Mortgage Loan upon termination of such
            Ground Lease for any reason, including rejection of such Ground
            Lease in a bankruptcy proceeding;

            (I) Under the terms of such Ground Lease and the related Mortgage,
            taken together, any related insurance proceeds or condemnation award
            that is awarded with respect to the leasehold interest will be
            applied either (i) to the repair or restoration of all or part of
            the related Mortgaged Property, with the mortgagee under such
            Mortgage Loan or a trustee appointed by it having the right to hold
            and disburse such proceeds as the repair or restoration progresses
            (except in such cases 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 (ii) to
            the payment or defeasance of the outstanding principal balance of
            such Mortgage Loan together with any accrued interest thereon
            (except 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);

            (J) Such Ground Lease does not impose any restrictions on subletting
            which would be viewed as commercially unreasonable by a prudent
            commercial mortgage lender;

            (K) Such Ground Lease may not be amended or modified without the
            prior consent of the mortgagee under the Mortgage Loan and any such
            action without such consent is not binding on such mortgagee, its
            successors or assigns, except in connection with the termination or
            cancellation of the Ground Lease following an event of default under
            the Ground Lease where notice had been provided to the mortgagee,
            such default is curable by the mortgagee, but the default was not
            cured beyond the applicable cure period.

            (xliii) Originator Authorization. To the extent required under
      applicable law and necessary for the enforcement of the Mortgage Loan, as
      of the date of origination, the originator of such Mortgage Loan was
      authorized to do business in the jurisdiction in which the related
      Mortgaged Property is located.

            (xliv) Capital Contributions. Neither the Mortgage Loan Seller nor
      any affiliate thereof has any obligation to make any capital contributions
      to the Mortgagor under the Mortgage Loan.

            (xlv) No Mechanics' Liens. The related 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 the related Title Insurance Policy.

            (xlvi) Appointment of Receiver. If the Mortgaged Property is subject
      to any leases, the borrower is the owner and holder of the landlord's
      interest under such leases and the related Mortgage and assignment of
      rents provides for the appointment of a receiver for rents or allows the
      mortgagee to enter into possession to collect rent or provides for rents
      to be paid directly to the mortgagee in the event of default.

            (xlvii) Credit Tenant Leases.

            (A) The lease payments due under the related Credit Lease, together
      with any escrow payments held by the Mortgage Loan Seller or its designee,
      are equal to or greater than the payments due with respect to the related
      Mortgage Loan.

            (B) The Mortgagor does not have any material monetary obligations
      under the related Credit Lease, and every material monetary obligation
      associated with managing, owning, developing and operating the leased
      property, including, but not limited to, the costs associated with
      utilities, taxes, insurance, maintenance and repairs is an obligation of
      the related Tenant.

            (C) The Mortgagor does not have any nonmonetary obligations under
      the related Credit Lease, except for the delivery of possession of the
      leased property.

            (D) Except as may be limited by the limitations described in
      paragraph (v), the related Tenant cannot terminate such Credit Lease for
      any reason prior to the payment in full of: (a) the principal balance of
      the related Mortgage Loan; (b) all accrued and unpaid interest on such
      Mortgage Loan; and (c) any other sums due and payable under such Mortgage
      Loan, as of the termination date, which date is a rent payment date,
      except for a material default by the related Mortgagor under the Credit
      Lease or due to a casualty or condemnation event, in which case, a Lease
      Enhancement Policy insures against such risk.

            (E) In the event the related Tenant assigns or sublets the related
      leased property, such Tenant (and if applicable, the related guarantor)
      remains obligated under the related Credit Lease.

            (F) Each property related to a Credit Lease Loan is one or more
      separate tax lots, except properties concerning which adequate funds have
      been escrowed to cover taxes due on the entire tax lot or lots.

            (G) The related Tenant has agreed to indemnify the Mortgagor from
      any claims of any nature (a) to which the Mortgagor is subject because of
      such Mortgagor's estate in the leased property (except to the extent
      caused by the act or omission of the Mortgagor or its agents or
      employees), or (b) arising from (i) injury to or death of any person or
      damage to or loss of property on the leased property or connected with the
      use, condition or occupancy of the leased property, (ii) Tenant's
      violation of the related Credit Lease, or (iii) any act or omission of the
      Tenant.

            (H) The related Tenant has agreed to indemnify the Mortgagor from
      any claims of any nature arising as a result of any hazardous material
      affecting the leased property and due to such Tenant's use of the leased
      property.

            (I) In connection with Credit Lease Loans with respect to which a
      Guaranty exists, the related guarantor guarantees the payment due under
      the related Credit Lease and such Guaranty, on its face, contains no
      conditions to such payment.

            (J) Except for the Credit Lease Loans which have residual value
      insurance, each Credit Lease Loan fully amortizes over the term of the
      loan, and there is no "balloon" payment due under such Credit Lease Loan
      at maturity.

            (K) No Tenant under a Credit Lease Loan may exercise any offset or
      set-off right.

            (L) Each Tenant under each Credit Lease Loan is required to make all
      rental payments due under the applicable Credit Lease directly to a
      lock-box being maintained by or on behalf of the mortgagee.

            (M) No material modification or amendment of any Credit Lease shall
      be binding upon the related mortgagee without such mortgagee's prior
      written consent to such material modification or amendment, which consent
      may not be unreasonably withheld.

            (N) Each property related to a Credit Lease Loan has a permanent
      certificate of occupancy, and the related Tenant thereunder has commenced
      the payment of rent due under the respective Credit Tenant Lease in
      accordance with its terms.

            (O) Each Tenant has delivered a subordination, non-disturbance and
      attornment agreement pursuant to which the respective Tenant has agreed in
      the event the related mortgagee succeeds to the interest of the Mortgagor
      under the Credit Lease by reason of foreclosure or acceptance of a deed in
      lieu of foreclosure, the Tenant will attorn to and recognize the mortgagee
      as its landlord under the Credit Lease for the remainder of the term of
      the Credit Lease.

            (P) To the Mortgage Loan Seller's knowledge, the property related to
      each Credit Lease Loan is not subject to any other lease other than the
      related Credit Lease or any ground lease pursuant to which the related
      Mortgagor has acquired its interest in the respective property, no Person
      has any possessory interest in, or right to occupy, the subject property
      except under and pursuant to any such Credit Lease or ground lease and the
      related Tenant under each Credit Lease is in occupancy of the demised
      premises.

<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 LaSalle Bank National
Association ("LaSalle");

            2. that LaSalle 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 LaSalle , 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 LaSalle Bank National  Association,
            under date of ______________ (the "Note");

            4. that the Note is now owned and held by LaSalle;

            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 LaSalle; and

            7. upon assignment of the Note by LaSalle 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 2004-C5 (the "Trustee") (which assignment may, at the
discretion of the Depositor, be made directly by LaSalle to the Trustee) LaSalle
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 LaSalle's failure to deliver said
original Note to the Trustee.

                                       LASALLE BANK NATIONAL ASSOCIATION

                                       By:____________________________________
                                          Name:
                                          Title:

Sworn to before me
this ________ day of [           ], 2004

<PAGE>

                                                                       EXHIBIT C

                        MORTGAGE LOANS WITH GROUND LEASE

                                  Eastgate Mall
                             Walgreens - Long Beach

<PAGE>

                                                                       EXHIBIT D

                         POOLING AND SERVICING AGREEMENT

                                 [see attached]EXHIBIT 4.5

================================================================================

              CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.
                                   (Depositor)

                                       and

                          LEHMAN BROTHERS HOLDINGS INC.
                                    (Seller)

                                   ----------

                        MORTGAGE LOAN PURCHASE AGREEMENT

                          Dated as of December 1, 2004

                                   ----------

================================================================================

<PAGE>

                                TABLE OF CONTENTS

Section 1.    Transactions on or Prior to the Closing Date..................
Section 2.    Closing Date Actions..........................................
Section 3.    Conveyance of Mortgage Loan...................................
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.    Reserved......................................................
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 File..................................
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 Lehman Loan

Schedule III  Exceptions with Respect to Seller's Representations and
               Warranties

Exhibit A     Representations and Warranties of Seller Regarding the Mortgage
               Loan

Exhibit B     Form of Lost Mortgage Note Affidavit

<PAGE>

                        MORTGAGE LOAN PURCHASE AGREEMENT

            This Mortgage Loan Purchase Agreement (this "Agreement"), dated as
of December 1, 2004, is made by and between LEHMAN BROTHERS HOLDINGS 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 as in effect on the
Closing Date.

            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
50% of one co-originated mortgage loan identified on the schedule (the "Mortgage
Loan Schedule") annexed hereto as Schedule II (such co-originated mortgage loan,
the "Whole Loan" or the "Time Warner Whole Loan"; the 50% of the Whole Loan
being sold hereunder, the "Mortgage Loan"; and the remaining 50% of the Whole
Loan, the "Other Loan"). Depositor intends to deposit the Mortgage Loan 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, together with Column Financial, Inc. ("Column"),
shall have delivered the Mortgage File with respect to the 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, Column and the
Trustee. The Depositor hereby acknowledges that it has entered into a separate
mortgage loan purchase agreement with Column to purchase a pool of multifamily
commercial mortgage loans that includes the Other Loan. The parties hereto
acknowledge and agree that the Mortgage Loan Documents identified in clauses (b)
through (r) of Section 3 will relate to the entire Whole Loan, and a single set
of such Mortgage Loan Documents will be delivered with respect to both the
Mortgage Loan and the Other Loan.

            Section 2. Closing Date Actions. The sale of the Mortgage Loan shall
take place on the Closing Date, subject to and simultaneously with the deposit
of the Mortgage Loan 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, 100 Maiden Lane, New York, New York 10038,
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 Loan 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 Loan 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 Loan. On the Closing Date, Seller
shall sell, convey, assign and transfer, without recourse except as expressly
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)
the Mortgage Loan; 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 or9 with respect to the Mortgage Loan 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 Loan 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 the Mortgage Loan shall consist of the following documents:

            (a) an original Note (or 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 or assignments 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
2004-C5, 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, execution by Column as the other
assignor, 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
2004-C5";

            (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 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), in recordable form (except
for any missing recording information, execution by Column as the other assignor
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
2004-C5";

            (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), 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
2004-C5," which assignment will be subject to execution by Column as the other
assignor and 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 (if applicable) 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 lien on the Mortgaged Property relating to the 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 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 security interest to the Trustee (subject, however, to any required action
on the part of Column as the other assignor);

            (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
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;

            (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 security interest
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;

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

            (r) if applicable post-Closing (and not for purposes of the Seller's
delivery obligations), any additional documents 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
the 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
(provided that with respect to clause (h)(B) above, if applicable) 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 or
Column: (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 or Column, as applicable, 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, if and when received, 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
the 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
(provided that with respect to clause (h)(B) above, if applicable) 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 the 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 or Column 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 50% of the 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 (subject to the performance by Column of any required action on its part)
deliver the Servicer File with respect to the Mortgage Loan to the Master
Servicer under the Pooling and Servicing Agreement on behalf of the Trustee in
trust for the benefit of the Certificateholders. The Servicer File shall contain
all documents and records in the Seller's possession relating to the Mortgage
Loan (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 attorney/client privileged communications and documents prepared
by the Seller or any of its Affiliates solely for internal communication or any
draft documents, correspondence, credit underwriting or due diligence analyses
or information, credit committee briefs or memoranda or other internal approval
documents or data or internal worksheets, memoranda, communications or
evaluations).

            In addition, if any Additional Collateral with respect to the
Mortgage Loan is in the form of a letter of credit as of the Closing Date, the
Seller (subject to the performance by Column of any required action on its part)
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.

            The Seller shall, promptly after the Closing Date, but in all events
within three (3) Business Days after the Closing Date, subject to the
performance by Column of any required action on its part, cause all funds on
deposit in escrow accounts maintained with respect to the Mortgage Loan in the
name of the Seller (if any), 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 Loan, 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 Loan from Seller to Depositor pursuant
hereto, the ownership of the 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 Mortgage Loan prepared by or which come into the
possession of Seller as seller of the Mortgage Loan 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.

            Seller shall, under generally accepted accounting principles
("GAAP"), report its transfer of the Mortgage Loan to the Depositor, as provided
herein, as a sale of the Mortgage Loan to the Depositor in exchange for the
consideration specified in Section 2 hereof. In connection with the foregoing,
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 Loan 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 Loan has been transferred
to the Depositor and is no longer available to satisfy claims of Seller's
creditors.

            After Seller's transfer of the Mortgage Loan 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
Loan. 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 Loan by Seller
to Depositor.

            Section 4. Depositor's Conditions to Closing. The obligations of
Depositor to purchase the Mortgage Loan 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 the Mortgage Loan and the Mortgage File 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 File 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 Loan 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 a sale of the Mortgage Loan 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 and Column, the 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 File. 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 Loan.

            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 all of its right, title and interest in, to and under
      the Mortgage Loan and to execute and deliver this Agreement (and all
      agreements and documents executed and delivered by Seller in connection
      herewith) and to perform all obligations 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 Loan.

            (iv) Seller is solvent and the sale of the Mortgage Loan (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 Loan, 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 Loan, 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 Loan, Seller is
      receiving new value. The consideration received by Seller upon the sale of
      the Mortgage Loan constitutes at least fair consideration and reasonably
      equivalent value for the Mortgage Loan.

            (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 Loan
      pursuant to this Agreement are not subject to the bulk transfer or similar
      statutory provisions in effect in any applicable jurisdiction. The
      Mortgage Loan does 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 Loan 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 Loan 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
(the "Replacement Mortgage Loan") that is substituted for the Mortgage Loan as a
result of the existence of 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, the Replacement Mortgage Loan, if any, shall be deemed to
constitute the "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 Loan 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 File or other documents evidencing or relating to the Mortgage Loan 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 Loan 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 the Mortgage Loan, 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 a 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 the Mortgage
Loan has not been delivered to the Trustee within the time period required
herein or (B) any 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 Mortgage Loan or the interests
of the Certificateholders therein (any Breach or Defect that materially and
adversely affects the value of the 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 (subject to the second
succeeding paragraph, the "Initial Resolution Period"): (i) cure such Breach or
Defect in all material respects; (ii) repurchase the affected Mortgage Loan at a
price equal to 50% of the applicable Purchase Price for the Whole Loan; or (iii)
substitute, in accordance with the Pooling and Servicing Agreement, one or more
Qualified Substitute Mortgage Loans for the Mortgage Loan (provided that in no
event shall any substitution occur later than the second anniversary of the
Closing Date) and pay any Substitution Shortfall Amount (which Substitution
Shortfall Amount shall be calculated based on a "Purchase Price" equal to 50% of
the applicable Purchase Price for the Whole Loan) 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 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 the 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 the
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, together with a certificate stating that the
original intervening assignments were sent for recordation, or a copy of the
assignment and the related recording information; or (e) the absence from the
Mortgage File of any required original letter of credit, provided that such
Defect may be cured by any substitute letter of credit or cash reserve on behalf
of the Borrower.

            Any Defect or Breach which causes the 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 the discovery of such
Defect or Breach by any party to the Pooling and Servicing Agreement (so long as
Seller received prompt notice thereof pursuant to this Section 7) or 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.

            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 the 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 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 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 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 Loan 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 for the related Qualified
Substitute Mortgage Loan), shall promptly release the Mortgage File, Servicer
File, escrow funds and reserves for such Mortgage Loan (if any), or cause them
to be released, to Seller and shall execute and deliver such instruments of
transfer or assignment as shall be necessary to vest in the Seller the legal and
beneficial ownership of the Mortgage Loan (including any property acquired in
respect thereof or proceeds of any insurance policy with respect thereto) and
the Mortgage Loan Documents.

            It is understood and agreed that the obligations of the Seller set
forth in this Section 7 to cure, substitute for or repurchase the Mortgage Loan
constitute the sole remedies available to the Depositor and its successors and
assigns against Seller respecting any Breach or Defect affecting the Mortgage
Loan.

            Notwithstanding the foregoing, if the Seller is required to
repurchase the Mortgage Loan as provided in this Section 7, then the Seller
shall have the option (in its sole discretion) to purchase the Whole Loan at the
Purchase Price, provided that Column does not repurchase the Other Loan. In
addition, if the Seller repurchases the Mortgage Loan as provided in this
Section 7 and the Other Loan remains in the Trust Fund because Column does not
repurchase the Other Loan, then the Trust Fund shall reasonably negotiate a
co-lender agreement with the Seller in form and substance satisfactory to both
the Trust Fund and the Seller, subject to any Rating Agency confirmation
pursuant to the Pooling and Servicing Agreement.

            Section 8. Reserved.

            Section 9. Rating Agency Fees; Costs and Expenses Associated with a
Defeasance. The Seller shall pay 50% of all Rating Agency fees (for the Whole
Loan) associated with an assumption of the Mortgage Loan to the extent such fees
have not been paid by the Borrower and the Borrower is not required to pay them
under the terms of the 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 50% of all reasonable costs and expenses (for the Whole
Loan) associated with a defeasance of the Mortgage Loan to the extent such costs
and expenses have not been paid by the Borrower and the Borrower is not required
to pay them under the terms of the 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 50% of 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 or Column elects to engage a third party
contractor to prepare, complete, file and record Assignments with respect to the
Mortgage Loan as provided in Section 3 of this Agreement, Seller or Column 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 745 Seventh Avenue, New York,
New York 10019, Attention: Scott Lechner, Telecopy No.: (646) 758-4203, or such
other address or telecopy number as may be designated by the Seller to the
Depositor in writing.

            Section 15. Examination of Mortgage File. Upon reasonable notice,
Seller, prior to the Closing Date, will make the Mortgage File 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 File 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 SHALL BE
BROUGHT, HEARD AND DETERMINED IN SUCH NEW YORK STATE OR FEDERAL COURTS (UNLESS
THEY REFUSE JURISDICTION); (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 Loan by Seller
to Depositor as provided in this Agreement be, and be construed as, a sale of
the Mortgage Loan by Seller to Depositor. It is, further, not the intention of
the parties that such conveyance be deemed a pledge of the Mortgage Loan 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 Loan is
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 Loan:

            (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 Loan, including the related
      Notes, Mortgages and title, hazard and other insurance policies, or any
      Replacement Mortgage Loan, 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 Loan 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.

                                       LEHMAN BROTHERS HOLDINGS 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 December 1, 2004, between Lehman Brothers Holdings 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 as in effect on the Closing Date.

            "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 the Mortgage Loan.

            "Certificate Purchase Agreement" means the Certificate Purchase
Agreement, dated December 16, 2004, between Depositor and the Initial Purchaser.

            "Certificates" means the Credit Suisse First Boston Mortgage
Securities Corp. Commercial Mortgage Pass-Through Certificates, Series 2004-C5,
issued in multiple classes.

            "Closing Date" means December 28, 2004.

            "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 the Due Date for the Mortgage Loan occurring in
December 2004.

            "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 Loan 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 III
attached hereto and made a part hereof.

            "Initial Purchaser" means Credit Suisse First Boston LLC.

            "Loan Agreement" means, with respect to the Mortgage Loan, the loan
agreement, if any, between the Mortgage Loan Originator and the Borrower,
pursuant to which the Mortgage Loan was made.

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

            "Mortgage File" means, collectively, the documents and instruments
pertaining to the Mortgage Loan required to be included in the Mortgage File
pursuant to Section 3 (subject to the proviso in Section 1 of the Agreement).

            "Mortgage Loan Documents" means the documents and instruments
pertaining to the Mortgage Loan to be included in either the Mortgage File or
the Servicer File.

            "Mortgage Loan Originator" means the institution which originated
the Mortgage Loan for the Borrower.

            "Mortgage Loan Purchase Price" means the amount described in Section
2 of the Agreement.

            "Note": The original executed note (or, if applicable, multiple
notes collectively) evidencing the indebtedness of the Borrower solely under the
Mortgage Loan (but not the Other Loan), together with any rider, addendum or
amendment thereto.

            "Offering Circular" means the confidential offering circular dated
December 16, 2004, 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
December 1, 2004, among the Master Servicer, the Special Servicer, the
Depositor, the Trustee and the Certificate Administrator, including, without
limitation, the exhibits and schedules annexed thereto, as in effect on the
Closing Date.

            "Private Certificates" means the Certificates that are not Publicly
Offered Certificates.

            "Prospectus" means the Prospectus, dated December 16, 2004, that is
a part of the Depositor's registration statement on Form S-3 (File No.
333-116258).

            "Prospectus Supplement" means the Prospectus Supplement, dated
December 16, 2004, relating to the Publicly Offered Certificates.

            "Publicly Offered Certificates" means the Class A-1, Class A-2,
Class A-3, Class A-AB, Class A-4, Class A-1-A, Class A-J, Class B, Class C and
Class D Certificates.

            "Servicer File" means, collectively, all documents, records and
copies pertaining to the Mortgage Loan which are required to be included in the
Servicer File pursuant to Section 3 thereof.

            "Underwriters" means Credit Suisse First Boston LLC, KeyBanc Capital
Markets, a Division of McDonald Investments Inc., ABN AMRO Incorporated and J.P.
Morgan Securities Inc.

            "Underwriting Agreement" means the Underwriting Agreement, dated
December 16, 2004, between the Depositor and the Underwriters.

<PAGE>

                                                                     SCHEDULE II

                             MORTGAGE LOAN SCHEDULE

<TABLE>
<CAPTION>

                Loan Group                                                                 Zip
 #    Crossed       #          Property Name           Address           City     State   Code
---   -------   ----------   ------------------   ------------------   --------   -----   -----
<S>   <C>       <C>          <C>                  <C>                  <C>        <C>     <C>
  1                      1   Time Warner Retail   10 Columbus Circle   New York    NY     10019

<CAPTION>
                                                             Sq. Ft./                                 Percentage of
                            Mortgage                          Rooms/      Original       Cut-off         Initial         Fee/
 #                      Property Seller                        Pads       Balance      Balance (1)    Pool Balance     Leasehold
---   ----------------------------------------------------   --------   ------------   ------------   -------------    ---------
<S>   <C>                                                    <C>        <C>            <C>            <C>              <C>
  1   Column Financial, Inc. and Lehman Brothers Bank, FSB    343,161   $320,000,000   $320,000,000            17.1%      Fee

<CAPTION>
       Orig      Rem.         Orig             Rem.
      Amort.    Amort.      Term to          Term to        Interest     Monthly                                   Primary
 #     Term    Term (1)   Maturity (6)   Maturity (1) (6)     Rate       Payment     ARD (7)   Defeasance (9)   Servicing Fee
---   ------   --------   ------------   ----------------   --------    ----------   -------   --------------   -------------
<S>   <C>      <C>        <C>            <C>                <C>         <C>          <C>       <C>              <C>
  1      360        360            120                120     5.7670%   $1,870,890     N/A          Yes                0.0200%

<CAPTION>

         Master        Administration    Letter of
 #    Servicing Fee         Fees          Credit
---   -------------    --------------    ---------
<S>   <C>              <C>               <C>
  1          0.0100%           0.0313%      N/A
</TABLE>

<PAGE>

                                                                    SCHEDULE III

                             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 (i)
Time Warner Retail
Lehman Brothers Holdings Inc. owns 50% of the Time Warner Whole Loan.

Exception to paragraph (xviii)
Time Warner Retail
Lehman Brothers Holdings Inc. owns 50% of the Time Warner Whole Loan.

Exception to paragraph (xxviii)
Time Warner Retail
A majority interest in the Borrower can be directly or indirectly transferred or
sold without the consent of the lender, provided that, following such transfer,
certain person already holding indirect interests in the Borrower owns 12.5% or
more of the membership interests in and controls managing members of the
Borrower and, provided further that, prior to such transfer to persons other
than those certain persons already holding indirect interests in the Borrower,
the applicable rating agencies must approve such transfer and a substantive
non-consolidation opinion must be provided by outside counsel reasonably
acceptable to the lender and the applicable rating agencies, and such opinion
must be in form, scope and substance reasonably acceptable to the lender and the
applicable rating agencies.

<PAGE>

                                                                       EXHIBIT A

                      REPRESENTATIONS AND WARRANTIES OF SELLER
                         REGARDING THE MORTGAGE LOAN

            (i) Immediately prior to the sale, transfer and assignment to the
Depositor, neither the Note nor 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 Mortgage Loan;

            (ii) RESERVED.

            (iii) The Seller has full right and authority to sell, assign and
transfer the Mortgage Loan and the assignment to the Depositor constitutes a
legal, valid and binding assignment of the Mortgage Loan;

            (iv) The Seller is transferring the Mortgage Loan free and clear of
any and all liens, pledges, charges or security interests of any nature
encumbering the Mortgage Loan;

            (v) As of origination, to Seller's knowledge, based on the
Borrower's representations and covenants in the 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) The Note, Mortgage, Assignment of Leases (if any) and other
agreement executed by or for the benefit of the Borrower, any guarantor or their
successors or assigns in connection with the Mortgage Loan is the legal, valid
and binding obligation of the Borrower, 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
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) The 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 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 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) The 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 Borrower, any guarantor or
their successors or assigns in connection with the 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 mortgage file,
the Mortgage Loan has not been modified, altered, satisfied, canceled,
subordinated or rescinded and (B) the Mortgaged Property has not been released
from the lien of the Mortgage in any manner which materially interferes with the
security intended to be provided by the Mortgage;

            (x) The Mortgage is a valid and enforceable first lien on the
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 of the Borrower located at and 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 Borrower in the Mortgage Loan
Documents not to be true;

            (xii) The Seller has no knowledge that the material representations
and warranties made by the Borrower in the Mortgage Loan Documents are not true
in any material respect;

            (xiii) The lien of the Mortgage is a first priority lien on the fee
and/or leasehold interest of the Borrower in the principal amount of the
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 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 Mortgaged Property is located (unless such state is Iowa)
and is assignable (with the 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 the 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 the Mortgage Loan or the
most recent inspection of the Mortgaged Property by the Seller, as applicable,
and to the knowledge of Seller as of the date hereof, the 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 the 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 the
Mortgaged Property within the past twelve months, or the originator of the
Mortgage Loan inspected or caused to be inspected the Mortgaged Property within
three months of origination of the Mortgage Loan;

            (xvii) The Mortgage Loan does not have 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) The 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 the 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 Mortgaged
Property, the security provided by the Mortgage or the Borrower's operations at
the 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 the Mortgage Loan have been complied with as of the date of origination of
the Mortgage Loan;

            (xx) Neither the Seller nor to the Seller's knowledge, any
originator, committed any fraudulent acts during the origination process of the
Mortgage Loan, and no other person has been granted or conveyed the right to
service the Mortgage Loan 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 the 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 the
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) The 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 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 Mortgaged
Property; the 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; the Mortgage Loan obligates the 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, breach, violation or event of
acceleration existing under the Mortgage Loan; and, to the Seller's knowledge,
there is no (A) non-monetary default, breach, violation or event of acceleration
existing under the 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 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 the 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 the Mortgage Loan
Document is also covered by any other representation or warranty made by the
Seller in this Exhibit A;

            (xxv) The Mortgage Loan has not been more than 30 days delinquent in
making required payments since origination and as of the Cut-off Date, the
Mortgage Loan is not 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, the 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 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 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 the Mortgage Loan. A Phase I
environmental report and a Phase II environmental report were conducted by a
reputable environmental consulting firm in connection with the 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 Borrower and held by
the related mortgagee; (B) an operations or maintenance plan has been required
to be obtained by the 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 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 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 Mortgage Loan; or (H) a lender's environmental insurance policy
was obtained and is a part of the related mortgage file. Such environmental
insurance policy, if any, is in full force and effect, the premiums for such
policy has been paid in full and the Trustee is named as an insured under such
policy. To the best of the Seller's knowledge, in reliance on such environmental
reports and except as set forth in such environmental reports, the 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) The Mortgage Loan contains provisions for the
acceleration of the payment of the unpaid principal balance of the 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 Mortgaged Property is directly or indirectly transferred or sold,
and (2) except with respect to transfers of certain interests in the 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), the Mortgage Loan
also contains the provisions for the acceleration of the payment of the unpaid
principal balance of the 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
Borrower is directly or indirectly transferred or sold;

            (xxix) All improvements included in the appraisal are within the
boundaries of the 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
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 Borrower's operations at the Mortgaged Property;

            (xxx) The information pertaining to the Mortgage Loan 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) Reserved;

            (xxxii) Reserved;

            (xxxiii) Reserved;

            (xxxiv) Neither Seller nor any affiliate thereof has any obligation
to make any capital contribution to any Borrower under the 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;

            (xxxvi) There are no subordinate mortgages encumbering the 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, this Exhibit A or in the Exception Report to this
Agreement;

            (xxxvii) The Mortgage Loan Documents require that the 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 Mortgage Loan,
does not have any assets other than those related to its interest in the
Mortgaged Property or its financing, or any indebtedness other than as permitted
under the Mortgage Loan);

            (xxxviii) The Mortgage Loan prohibits the 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 Loan;

            (xxxix) The 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) The 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
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 the
Borrower's failure to do so, authorizes the Lender to maintain such insurance at
the cost and expense of the Borrower;

            (xlii) RESERVED.

            (xliii) RESERVED.

            (xliv) Except as disclosed in the Exception Report to this
Agreement, 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
Mortgage Loan;

            (xlv) No advance of funds has been made by the Seller to the
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 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
the Mortgaged Property is located, or the failure to be so authorized did not
materially and adversely affect the enforceability of the Mortgage Loan;

            (xlvii) All collateral for the Mortgage Loan is being transferred as
part of the Mortgage Loan;

            (xlviii) Except as disclosed in the Exception Report to this
Agreement or the Prospectus Supplement with respect to the Mortgage Loan, the
Mortgage Loan does not require the lender to release any portion of the
Mortgaged Property from the lien of the Mortgage except upon (A) payment in full
or defeasance of the 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 Mortgage Loan;

            (xlix) 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 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 the 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 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
execution by Column and 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% of the net leaseable area of the 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 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 Mortgaged Property. If
the Mortgaged Property does not so comply, to the extent the Seller is aware of
such non-compliance, it has required the Borrower to obtain law and ordinance
insurance coverage in amounts customarily required by prudent commercial
mortgage lenders;

            (liii) The 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 the 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, 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, 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 the Mortgage Loan provide that
the 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 Mortgage Loan Documents,
and (D) fraud by the 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) Reserved;

            (lvii) Reserved; and

            (lviii) The Seller has delivered to the Trustee or a custodian
appointed thereby, with respect to the 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 Lehman Brothers Holdings
Inc. ("Lehman");

            2. that Lehman 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 Lehman , 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  Lehman  Brothers  Holdings  Inc.,
            under date of ______________ (the "Note");

            4. that the Note is now owned and held by Lehman;

            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 Lehman; and

            7. upon assignment of the Note by Lehman 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 2004-C5 (the "Trustee") (which assignment may, at the
discretion of the Depositor, be made directly by Lehman to the Trustee), Lehman
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 Lehman's failure to deliver said original
Note to the Trustee.

                                       LEHMAN BROTHERS HOLDINGS INC.

                                       By:____________________________________
                                          Name:
                                          Title:

Sworn to before me
this ________ day of [           ], 2004

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