Document:

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             CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.
                                   (Depositor)

                                       and

               CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC
                                    (Seller)

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                        MORTGAGE LOAN PURCHASE AGREEMENT

                            Dated as of July 11, 2000

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                                TABLE OF CONTENTS

                                                                            Page

Section 1.     Transactions on or Prior to the Closing Date..................1
Section 2.     Closing Date Actions..........................................1
Section 3.     Conveyance of Mortgage Loans..................................2
Section 4.     Depositor's Conditions to Closing.............................5
Section 5.     Seller's Conditions to Closing................................7
Section 6.     Representations and Warranties of Seller......................7
Section 7.     Obligations of Seller.........................................9
Section 8.     Representations and Warranties of Depositor..................10
Section 9.     Survival of Certain Representations, Warranties and Covenants11
Section 10.    Accountant's Letters.........................................11
Section 11.    Expenses; Recording Costs....................................11
Section 12.    Notices......................................................11
Section 13.    Examination of Mortgage Files................................12
Section 14.    Successors...................................................12
Section 15.    Governing Law................................................12
Section 16.    Severability.................................................12
Section 17.    Further Assurances...........................................12
Section 18.    Counterparts.................................................12
Section 19.    Treatment as Security Agreement..............................13
Section 20.    Recordation of Agreement.....................................14

Schedule I     Schedule of Transaction Terms
Schedule II    Mortgage Loan Schedule
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      Form of Assignment of Mortgage(s) and Assignment of Assignment
               of Lessor's Interests in Leases, Rents and Profits
Exhibit D      Form of Seller's In-House Counsel Opinion

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                        MORTGAGE LOAN PURCHASE AGREEMENT

            This Mortgage Loan Purchase Agreement (this "Agreement"), dated as
of July 11, 2000, is made by and between CREDIT SUISSE FIRST BOSTON MORTGAGE
CAPITAL LLC, a Delaware limited liability company ("Seller") and CREDIT SUISSE
FIRST BOSTON MORTGAGE SECURITIES CORP., a Delaware corporation (the
"Depositor").

                                    RECITALS

            I.....Capitalized terms used herein without definition have the
meanings ascribed to them in the Schedule of Transaction Terms attached hereto
as Schedule I, which is incorporated herein by this reference, or, if not
defined therein, in the Pooling and Servicing Agreement.

            II....On the Closing Date, and on the terms set forth herein, Seller
has agreed to sell to Depositor and Depositor has agreed to purchase from Seller
the Mortgage Loans identified on the schedule (the "Mortgage Loan Schedule")
annexed hereto as Schedule II. Depositor intends to deposit the Mortgage Loans
and other assets into 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 of the Mortgage Loans listed in the Mortgage Loan Schedule to Wells
Fargo Bank Minnesota, 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 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 shall take place at the offices of Cadwalader,
Wickersham & Taft, 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 payable in accordance with instructions
      previously provided to Depositor by Seller. The Mortgage Loan Purchase
      Price (as defined herein) shall be paid by Depositor to Seller or at its
      direction by wire transfer in immediately available funds to an account
      designated by Seller on or prior to the Closing Date. The "Mortgage Loan
      Purchase Price" paid by Depositor shall be equal to [____%] of the
      aggregate outstanding principal balance of the Mortgage Loans, after
      giving effect to any scheduled monthly payments due on or prior to the
      Cut-off Date, plus accrued interest at the weighted average Mortgage Rate
      from the Cut-off Date to but not including the Closing Date.

            (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 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 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
      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 each of the Mortgage
Loans identified on the Mortgage Loan Schedule and all property of Seller
described in Section 19 of this Agreement. On or prior to the Closing Date, each
Mortgage File shall be delivered by Seller to the Trustee. Each Mortgage File
shall contain the following documents:

            (a) the original Mortgage 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
      Mortgage Note, bearing, or accompanied by, all prior and intervening
      endorsements or assignments thereof showing a complete chain of
      endorsement or assignment from the Originator of the related Mortgage Loan
      to Seller, and further endorsed (at the direction of Depositor given
      pursuant to this Agreement) by Seller, on its face or by allonge attached
      thereto, without recourse, to the order of the Trustee in the following
      form: "Pay to the order of Wells Fargo Bank Minnesota, N.A., as trustee
      for the registered Holders of Credit Suisse First Boston Mortgage
      Securities Corp. Commercial Mortgage Pass-Through Certificates, Series
      2000-C1, without recourse, representation or warranty, express or
      implied;"

            (b) a duplicate original Mortgage (or a certified copy thereof from
      the applicable recording office) and originals (or certified copies from
      the applicable recording office) of any intervening assignments thereof
      showing a complete chain of assignment from the Originator of the related
      Mortgage Loan to Seller, in each case with evidence of recording indicated
      thereon;

            (c)   an original  (or a true and  complete  copy if the  original
      has been sent by the  Seller for  recordation)  Assignment  of  Mortgage
      substantially in the form of Exhibit C hereto,  in recordable form, from
      Seller  to  Wells  Fargo  Bank  Minnesota,  N.A.,  as  trustee  for  the
      registered  Holders of Credit  Suisse First Boston  Mortgage  Securities
      Corp. Commercial Mortgage Pass-Through Certificates, Series 2000-C1;

            (d)   an  original  Assignment  of  Leases  (if  such  item  is  a
      document separate from the Mortgage), in recordable form;

            (e) an original (or a true and complete copy if the original has
      been sent by the Seller for recordation) of any related assignment of
      Assignment of Leases (if such item is a document separate from the
      Mortgage) substantially in the form of Exhibit C hereto and the originals
      or copies of any intervening assignments thereof showing a complete chain
      of assignment from the Originator of the related Mortgage Loan to Seller,
      in each case with evidence of recording thereon;

            (f) an original or a 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 showing a
      complete chain of assignment from the Originator of the related Mortgage
      Loan to Seller;

            (g)   an original  assignment  of any related  Security  Agreement
      (if such item is a document  separate from the Mortgage),  in recordable
      form,  executed by Seller in favor of Wells Fargo Bank Minnesota,  N.A.,
      as trustee for the  registered  Holders of Credit  Suisse  First  Boston
      Mortgage    Securities   Corp.    Commercial    Mortgage    Pass-Through
      Certificates, Series 2000-C1;

            (h) originals or true and complete copies of all assumption,
      modification, written assurance and substitution agreements, with evidence
      of recording thereon, where appropriate, in those instances where the
      terms or provisions of the related Mortgage or Mortgage Note or any
      related security document have been modified or the related Mortgage Loan
      has been assumed;

            (i) the original lender's title insurance policy or a copy thereof
      effective as of the date of the recordation of the related Mortgage Loan,
      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, a written binding commitment or interim binder, dated as of
      the date the related Mortgage Loan was funded;

            (j) the original or a true and complete copy of any guaranty of the
      obligations of the Mortgagor under the related Mortgage Loan and the
      originals or copies of any intervening assignments thereof showing a
      complete chain of assignment from the Originator of the related Mortgage
      Loan to Seller, in each case with evidence of recording thereon;

            (k)   all UCC Financing Statements and continuation  statements or
      copies thereof filed with respect to the Mortgage Loans;

            (l) the original or a true and complete copy of the power of
      attorney (with evidence of recording thereon) granted by the Mortgagor if
      the Mortgage, Mortgage Note or other document or instrument referred to
      above was not signed by the Mortgagor;

            (m) any intercreditor agreement relating to any debt of a Borrower
      secured by the related Mortgaged Property other than the related Mortgage
      Loan;

            (n) if any related Lock-Box Agreement or Cash Collateral Agreement
      is separate from the Mortgage or Loan Agreement, a copy thereof; with
      respect to the Cash Collateral Accounts and Lock-Box Accounts, if any, a
      copy of the UCC-1 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 (and UCC-2 or UCC-3
      financing statements assigning such security interest to the Trustee on
      behalf of the Certificateholders);

            (o)   any Loan Agreement;

            (p)   [reserved];

            (q)   any environmental insurance policies;

            (r)   [reserved];

            (s) letters of credit, if any, relating to the Additional Collateral
      Loans, including with respect to Loan Nos. 20, 21 and 22, within 120 days
      of the Closing Date, the original letter of credit provided by the
      borrower, fully assigned to the Trustee;

            (t)   the related intercreditor agreement, if any;

            (u) the applicable participation documents, including (i) the
      Amended and Restated Participation and Intercreditor Agreement for Loan
      No. 8 on the Mortgage Loan Schedule (the "L'Enfant Loan"), dated June 11,
      2000, by and between the Depositor and The Chase Manhattan Bank, as
      trustee for Credit Suisse First Boston Mortgage Securities Corp.,
      Commercial Pass Through Certificates, Series 1999-C1 as successor to
      Credit Suisse First Boston Mortgage Securities Corp., and (ii) the
      Co-Lender Agreement relating to the L'Enfant Loan, dated November 11,
      1998, by and between The Chase Manhattan Bank, as trustee for Credit
      Suisse First Boston Mortgage Securities Corp., Commercial Pass Through
      Certificates, Series 1998 C-2 as successor to Credit Suisse First Boston
      Mortgage Securities Corp. and the Seller; and

            (v)   any  additional  documents  required  to  be  added  to  the
      Mortgage File pursuant to this Agreement.

            With respect to the L'Enfant Loan and the 1211 Avenue of the
Americas Loan, document delivery requirements (other than those specified in
clause (u) above) will be met by the delivery of copies of any mortgage loan
documents required to be delivered under this agreement.

            Notwithstanding the foregoing, in the event that, in connection with
any Mortgage Loan (other than the L'Enfant Loan or the 1211 Avenue of the
Americas Loan, Seller cannot deliver an original recorded counterpart of any of
the documents required to be delivered pursuant to clauses (b), (d), (f), (h),
(k) (with respect to UCC financing statements filed other than in accordance
with the transfer contemplated by this Agreement) and (l) above with evidence of
recording or filing thereon concurrently with the execution and delivery hereof,
solely because of a delay caused by the public recording office where such
document or instrument has been delivered for recordation, Seller 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 to
be a true and complete duplicate original or copy of the original thereof
submitted for recording or filing.

            Notwithstanding the foregoing, in the event that Seller cannot
deliver to the Trustee any UCC-2 or UCC-3 assignment with the filing information
of the UCC-1 financing statement being assigned, solely because of a delay
caused by the public filing office where such UCC-1 financing statement has been
delivered for filing, Seller shall deliver or cause to be delivered to the
Trustee a photocopy of such UCC-2 or UCC-3 assignment with the filing
information left blank. Seller, promptly upon receipt of the applicable filing
information of the UCC-1 financing statement being so assigned, shall deliver to
the Trustee the original UCC-2 or UCC-3 assignment with all appropriate filing
information set forth thereon.

            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 documents prepared by Seller
or any of its affiliates solely for internal uses, shall immediately vest in
Depositor and shall be forwarded by Seller to the Trustee by overnight mail for
next-day delivery and retained and maintained, in trust, by the Trustee at the
will of Depositor, in such custodial capacity only. 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 of Seller's receipt thereof to the Servicer via wire
transfer for deposit by the Servicer into the Collection Account.

            Section 4.  Depositor's  Conditions  to Closing.  The  obligations
of Depositor  under this Agreement  shall be subject to the  satisfaction,  on
the Closing Date, of the following conditions:

            (a) Each of the obligations of 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
      shall be true and correct in all material respects as of the Closing Date;
      and no event shall have occurred with respect to 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
      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 Depositor and Seller, duly executed by all signatories other
      than Depositor, as required pursuant to the respective terms thereof:

                  (i)   the Mortgage  Files,  which shall have been  delivered
      to and held by the Trustee on behalf of Seller;

                  (ii)  the Mortgage Loan Schedule;

                  (iii) an officer's certificate of Seller, dated as of the
      Closing Date, with certified copies of the charter, by-laws, and a
      certificate of good standing dated as of a recent date of Seller;

                  (iv) an opinion of Seller's in-house counsel, dated the
      Closing Date, in substantially the same form as Exhibit D attached hereto.

            Such opinion may express its reliance as to factual matters on,
among other things specified in such opinion, the representations and warranties
made herein, and on certificates or other documents furnished by officers of
Seller.

            In rendering the opinions expressed above, such counsel may limit
such opinions to matters governed by the Limited Liability Company Act of the
State of Delaware and the laws of the State of New York and the United States
and shall not be required to express any opinion with respect to the
registration or qualification of the Certificates under any applicable state or
federal securities laws.

                  Such counsel shall state that, although such counsel has not
specifically considered the possible applicability to Seller of any other laws,
regulations, judgments, orders or decrees, no facts have been disclosed to such
counsel that cause such counsel to conclude that any other consent, approval or
action is required;

                  (v) an opinion of Cadwalader, Wickersham & Taft, special
      counsel to Seller, dated the Closing Date, substantially to the effect of
      the following (with such changes and modifications as Depositor may
      approve):

                  Assuming the due authorization, execution and delivery of this
                  Agreement by Seller, this Agreement constitutes a valid and
                  binding agreement of Seller, enforceable against Seller in
                  accordance with its terms, except to the extent that
                  enforcement hereof may be limited by (x) bankruptcy,
                  insolvency, reorganization, moratorium or other similar laws
                  now or hereafter in effect and (y) general principles of
                  equity (regardless of whether enforceability is considered in
                  a proceeding at law or in equity).

            Such opinion may express its reliance as to factual matters on,
among other things specified in such opinion, the representations and warranties
made by, and on certificates or other documents furnished by officers of,
Seller.

            In rendering the opinions expressed above, such counsel may limit
such opinions to matters governed by the laws of the State of New York and the
United States to the extent specifically referred to.

                  (vi) 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.

            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 Seller 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 and such
            other documents required to evidence fulfillment of the conditions
            set forth in this Agreement as Seller or its counsel may reasonably
            request.

            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, validly existing and 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)Neither the execution and delivery by Seller of this
      Agreement, nor the compliance by Seller with the provisions hereof, nor
      the consummation by Seller of transactions contemplated by this Agreement
      will (I) conflict with or result in a breach of, or constitute a default
      or result in the acceleration of any obligations under, the certificate of
      formation or operating agreement of Seller or, after giving effect to the
      consents or the taking of the actions contemplated by clause (II) of this
      subparagraph (ii), any of the provisions of any law, governmental rule,
      regulation, judgment, decree or order binding on Seller or its properties
      or any of the provisions of any material indenture or mortgage or any
      other material contract or instrument to which Seller is a party or by
      which it or any of its properties is bound or result in the creation or
      imposition of any lien, charge or encumbrance upon any of its property
      pursuant to the terms of any such indenture, mortgage, contract or other
      instrument (other than pursuant to this Agreement) or (II) require the
      consent of or notice to, or any filing with, any person, entity or
      governmental body, which has not been obtained or made by Seller, 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 adverse effect
      on any transactions relating to the sale of the Mortgage Loans by Seller.

                 (iii) The execution and delivery by Seller of this Agreement,
      and the consummation of transactions contemplated by this Agreement on the
      terms set forth herein, have been duly authorized by all necessary limited
      liability company action on the part of Seller and are within the limited
      liability company power of Seller, and this Agreement has been duly
      executed and delivered by Seller and constitutes a legal, valid and
      binding instrument, enforceable against Seller in accordance with its
      terms, subject to applicable bankruptcy, reorganization, insolvency,
      moratorium and other laws of general applicability relating to or
      affecting the enforcement of creditors' rights 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).

                 (iv)No consent, approval, authorization or order of,
      registration or filing with, or notice to any federal, state or local
      governmental authority or court that has not been obtained, made or given
      is required in connection with the execution, delivery and performance of
      this Agreement by Seller.

                 (v) No litigation is pending or, threatened against the Seller
      which would materially and adversely affect the validity of the Mortgage
      Loans, or the ability of the Seller to carry out any transactions relating
      to the sale of the Mortgage Loans by Seller.

                 (vi)Except as set forth on Schedule V hereto, the
      representations and warranties contained in Exhibit A-1 and Exhibit A-2
      hereto are true and correct in all material respects as of the Closing
      Date.

            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, subject to Section 14 of this Agreement,
notwithstanding any restrictive or qualified endorsement on the mortgage 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
any initial transferee of the Mortgage Loans from Depositor including, without
limitation, the Trustee for the benefit of the Holders of the Certificates.

            Upon discovery of any Defect (as defined herein) in a Mortgage File
related to a Mortgage Loan, Depositor or its assignee shall promptly notify
Seller in writing of such Defect and request that Seller cure such Defect within
90 days from the date Seller was notified of such Defect; provided, however,
that if such Defect would cause such Mortgage Loan to be other than a "qualified
mortgage" under Section 860G(a)(3) of the Code, then such cure shall be within
90 days of discovery of such Defect. A document in the Mortgage File shall be
deemed to have a "Defect" if (a) any document required to be included in the
Mortgage File is not in the possession of the Trustee, within the time required
to be delivered pursuant to this Agreement or (b) such document has not been
properly executed or is otherwise defective on its face; provided, however, that
a document shall not be deemed to have a Defect if such Defect is caused by the
failure by Depositor to execute such document after having been directed by
Seller to execute such document. If Seller does not correct or cure such Defect
within such period, Seller shall purchase such Mortgage Loan from the Trust Fund
at the Purchase Price pursuant to Section 2.03 of the Pooling and Servicing
Agreement.

            Within 90 days of the receipt of written notice by Seller of a
breach (a "Breach") of any of the representations, warranties or covenants of
Seller with respect to the Mortgage Loans set forth in Exhibit A to this
Agreement (or, if any such Breach would cause the Mortgage Loan to be other than
a "qualified mortgage" under Section 860G(a)(3) of the Code, within 90 days of
discovery of the Breach) which, in either case, materially and adversely affects
either (i) the interests of Depositor or the Certificateholders in the related
Mortgage Loan or (ii) the value of the related Mortgage Loan, Seller shall cure
such Breach and, if Seller does not correct or cure such Breach within such
period, or if such Breach cannot be so cured, then Seller shall purchase the
affected Mortgage Loan at the Purchase Price pursuant to Section 2.03 of the
Pooling and Servicing Agreement. If Seller is required to repurchase any
Mortgage Loan that is part of a Mortgage Group (as defined herein), Seller shall
also be required to repurchase the remaining Mortgage Loans in such Mortgage
Group. 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.

            The Purchase Price for any repurchased Mortgage Loan shall be
payable to 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 Depositor or its assignee, and
Depositor or its assignee, upon receipt of such funds, shall promptly release
the related Mortgage File or cause it to be released, to Seller and shall
execute and deliver such instruments of transfer or assignment, in each case
without recourse, as shall be necessary to vest in Seller title to any Mortgage
Loan released pursuant hereto. The Depositor or the Servicer, as applicable,
shall deliver to Seller an officer's certificate setting forth the calculation
of the Purchase Price.

            Section 8.  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 or 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 9. 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 11 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 10. Accountant's Letters. On or before the Closing Date,
PriceWaterhouseCoopers LLP will have reviewed the characteristics of the
Mortgage Loans described in (a) the Mortgage Loan Schedule attached hereto and
set forth as an exhibit to the Pooling and Servicing Agreement and (b) the
computer disk prepared by Seller and provided to Depositor and will compare
those characteristics to, and ensure their agreement with (i) the description of
the Mortgage Loans contained in the Prospectus Supplement and the Offering
Circular, respectively; (ii) original documentation and files of Seller
maintained with respect to each Mortgage Loan; and (iii) if applicable,
information with respect to such Mortgage Loans contained in the report on Form
8-K to be filed by Depositor with the Commission in connection with the offering
of the Certificates. Seller will cooperate with Depositor and
PriceWaterhouseCoopers LLP in making available all information and taking all
steps reasonably necessary to permit such accountants to complete the review set
forth in this Section 10 and to deliver the letters required of them under the
Underwriting Agreement and the Certificate Purchase Agreement.

            Section 11. Expenses; Recording Costs. Seller agrees to pay to
Depositor or its designee all recording and filing fees incurred in connection
with the recording or filing of the documents listed in Section 3 of this
Agreement.

            Section 12. Notices.  All  communications  hereunder  will  be  in
writing,  and,  (a) if  sent  to  Depositor,  will  be  mailed,  delivered  or
telecopied  and  confirmed  to it  at  Credit  Suisse  First  Boston  Mortgage
Securities Corp.,  Eleven Madison Avenue, 5th Floor, New York, New York 10010,
Attention:  Allan J. Baum,  Telecopy No.: (212)  325-8162;  and (b) if sent to
Seller,  will be mailed,  delivered or telecopied to it at Credit Suisse First
Boston Mortgage Capital LLC, Eleven Madison Avenue,  New York, New York 10010,
Attention: President, Telecopy No.: (212) 325-8160.

            Section 13. 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 14. Successors. This Agreement shall inure to the benefit of
and shall be binding upon Seller and Depositor and their respective successors
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 (a) the indemnities
of Seller contained in that certain Indemnification Agreement dated July 27,
2000 among Seller, Depositor and the Underwriters, subject to all limitations
therein contained, shall also be for the benefit of the officers and directors
of Depositor, the Underwriters and the Initial Purchaser and any person or
persons who control Depositor, the Underwriters and the Initial Purchaser within
the meaning of Section 15 of the Securities Act or Section 20 of the 1934 Act,
and (b) the rights of Depositor pursuant to this Agreement, subject to all
limitations herein contained, including those set forth in Section 9 of this
Agreement, may be assigned to the Trustee 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. No owner of a
Certificate issued pursuant to the Pooling and Servicing Agreement shall be
deemed a successor because of such ownership.

            Section 15. 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.

            Section 16. 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 17. Further Assurances. Depositor and Seller agree to
execute and deliver such instruments and take such actions as the other parties
may, from time to time, reasonably request in order to effectuate the purpose
and to carry out the terms of this Agreement.

            Section 18. 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 19. 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, 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 Mortgage Notes,
      Mortgages and title, hazard and primary mortgage insurance policies
      identified on the Mortgage Loan Schedule, including all 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 (i) and (ii) above payable after the Cut-off Date;

            (c) the possession by Depositor or its assignee of the Mortgage
      Notes, the Mortgages 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 9-305 and 9-115
      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. Seller, Depositor or their assignee at the direction of
      Seller 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.

            Section 20. 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 the date first
above written.

                                    CREDIT SUISSE FIRST BOSTON MORTGAGE
                                    CAPITAL LLC,
                                       as Seller

                                    By:_______________________________________
                                       Name:
                                       Title:

                                    CREDIT SUISSE FIRST BOSTON MORTGAGE
                                    SECURITIES CORP.,
                                       as Depositor

                                    By:_______________________________________
                                       Name:
                                      Title:      Vice President

<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 July 11, 2000, between Credit Suisse First Boston Mortgage Capital LLC (" 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, the Underwriting Agreement or
the Certificate Purchase Agreement, as the case may be.

            "Borrower" means the borrower under the Mortgage Loan.

            "Certificate Purchase Agreement" means the Certificate Purchase
Agreement, dated July 27, 2000, between Depositor and the Initial Purchasers.

            "Certificates"  means each class of the Credit Suisse First Boston
Mortgage  Securities  Corp.  Commercial  Mortgage  Pass-Through  Certificates,
Series 2000-C1.

            "Closing Date" means August 4, 2000.

            "Code" means the Internal Revenue Code of 1986, as amended.

            "Cut-off Date" means, July 11, 2000.

            "Environmental Report" means the environmental audit report with
respect to each Mortgaged Property delivered to Seller in connection with the
related Mortgage, if any.

            "Initial  Purchasers" means Credit Suisse First Boston Corporation
and Morgan Stanley & Co. Incorporated.

            "Investment Officer" means any employee of Seller designated by
Seller as an "investment officer" or whose title includes the words "investment
officer."

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

            "Mortgage Loan Pool" means the pool of Mortgage Loans, which are the
primary assetspof the Trust Fund.

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

            "Mortgage Loans" means the mortgage loans to be sold to Depositor
pursuant to the Agreement, specifically identified in the Mortgage Loan Schedule
to the Agreement.

            "Offered Certificates" means the Class A-1, Class A-2, Class B,
Class C and Class D Certificates.

            "Offering Circular" means the confidential offering circular dated
July 27, 2000, describing certain classes of the Certificates.

            "Originator" means any institution which originated a Mortgage Loan
for a related Borrower.

            "Pooling and Servicing Agreement" means the Pooling and Servicing
Agreement creating the Trust Fund and the interests therein, dated as of July
11, 2000, among the Servicer, the Special Servicer, Depositor and the Trustee,
including the Mortgage Loan Schedule annexed thereto.

            "Prospectus" means the Prospectus, dated October 12, 1999.

            "Prospectus Supplement" means the Prospectus Supplement, dated July
27, 2000, relating to the Offered Certificates.

            "Underwriters"  means Credit Suisse First Boston  Corporation  and
             ------------
Morgan Stanley & Co. Incorporated.

            "Underwriting Agreement" means the Underwriting Agreement, dated
July 27, 2000, between Depositor and the Underwriters.

<PAGE>

                                                                 SCHEDULE II-A

                             MORTGAGE LOAN SCHEDULE

<PAGE>

                                                                 SCHEDULE II-B

             MORTGAGE LOAN SCHEDULE (LOANS SOLD BY NCCB TO CSFB)

<PAGE>

                                                                  SCHEDULE III

                 MORTGAGE LOANS CONSTITUTING MORTGAGE GROUPS

<PAGE>

                                                                   SCHEDULE IV

                         MORTGAGE LOANS WITH LOST NOTES

<PAGE>

                                                                    SCHEDULE V

                             EXCEPTIONS TO SELLER'S

                         REPRESENTATIONS AND WARRANTIES

            Reference is made to the Representations and Warranties contained in
Exhibit A corresponding to the roman numerals listed below:

            [CURRENTLY PROVIDED AS SEPARATE DOCUMENT]

<PAGE>

EXHIBIT A-1

                   REPRESENTATIONS AND WARRANTIES OF SELLER
                 REGARDING THE MORTGAGE LOANS ON SCHEDULE A-1

            The Seller represents and warrants with respect to each Mortgage
Loan, as applicable, that as of the date hereof:

               (i) Immediately prior to the sale, transfer and assignment to the
Depositor, no Mortgage Note or Mortgage was subject to any assignment (other
than to the Seller), participation or pledge, and the Seller had good and
marketable title to, and was the sole owner of, the related Mortgage Loan;

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

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

               (iv) Each related Mortgage Note, Mortgage, assignment of leases
(if any) and other agreement executed in connection with such Mortgage Loan is
the legal, valid and binding obligation of the related 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 generally, 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 defense, counterclaim, or right of
rescission available to the related borrower with respect to such Mortgage Note,
Mortgage, assignment of leases and other agreements;

               (v) Each related assignment of leases creates a valid first
priority collateral or first priority assignment of, or a valid first priority
security interest in, certain rights under the related lease, subject only to a
license granted to the related borrower to exercise certain rights and to
perform certain obligations of the lessor under such lease, including the right
to operate the related Mortgaged Property; no person other than the related
borrower owns any interest in any payments due under such lease that is superior
to or of equal priority with the lender's interest therein;

               (vi) Each related assignment of Mortgage from the Seller to the
Depositor and related assignment of the assignment of leases, if any, or
assignment of any other agreement executed in connection with such Mortgage Loan
from the Seller to the Depositor constitutes the legal, valid and binding
assignment from the Seller to the Depositor, except as such enforcement may be
limited by bankruptcy, insolvency, reorganization, liquidation, receivership,
moratorium or other laws relating to or affecting creditors' rights generally,
or by general principles of equity (regardless of whether such enforceability is
considered in a proceeding in equity or at law);

               (vii) Since origination, and except as set forth in the related
mortgage file, such Mortgage Loan has not been modified, altered, satisfied,
canceled, subordinated or rescinded and, each related Mortgaged Property has not
been released from the lien of the related Mortgage in any manner which
materially interferes with the security intended to be provided by such
Mortgage;

               (viii) Each related Mortgage is a valid and enforceable first
lien on the related Mortgaged Property (subject to Permitted Encumbrances (as
defined below)), 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 in all places necessary to perfect a valid security interest in the
personal property necessary to operate the Mortgaged Property; any security
agreement, chattel mortgage or equivalent document related to and delivered in
connection with the Mortgage Loan establishes and creates a valid and
enforceable lien on property described therein (except as enforceability may be
limited by bankruptcy or other laws affecting creditor's rights generally or by
the application of general principles of equity).

               (ix) The Seller has not taken any action that would cause the
representations and warranties made by each related borrower in the Mortgage
Loan not to be true;

               (x) The Seller has no knowledge that the material representations
and warranties made by each related borrower in such Mortgage Loan are not true
in any material respect;

               (xi) The lien of each related Mortgage is a first priority lien
on the fee or leasehold interest of the related borrower in the original
principal amount of such Mortgage Loan or allocated loan amount of the portions
of the Mortgaged Property covered thereby (as set forth in the related Mortgage)
after all advances of principal and is insured by an ALTA lender's title
insurance policy (or a binding commitment therefor), or its equivalent as
adopted in the applicable jurisdiction, insuring the Seller and its successors
and assigns as to such lien, subject only to (a) the lien of current real
property taxes, ground rents, water charges, sewer rents and assessments not yet
due and payable, (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) set forth
in such policy, none of which, individually or in the aggregate, materially
interferes with the current general use of the Mortgaged Property or materially
interferes with the security intended to be provided by such Mortgage or with
the related borrower's ability to pay its obligations when they become due or
the value of the Mortgaged Property (items (a), (b) and (c) collectively,
"Permitted Encumbrances"); the premium for such policy was paid in full; such
policy was issued by a title insurance company licensed to issue policies in the
state in which the related Mortgaged Property is located and is assignable 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 the Mortgage Loan Purchase 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;

               (xii) The proceeds of such Mortgage Loan have been fully
disbursed and there is no requirement for future advances thereunder and the
Seller covenants that it will not make any future advances under the Mortgage
Loan to the related borrower;

               (xiii) As of the later of the date of origination of such
Mortgage Loan or the most recent inspection of the related Mortgaged Property by
the Seller, as applicable, and to the knowledge of Seller as of the Closing
Date, each related Mortgaged Property is free of any material damage that would
affect materially and adversely the value of such Mortgaged Property as security
for the Mortgage Loan or reserves have been established to remediate such damage
and, as of the closing date for each Mortgage Loan and, to the Seller's
knowledge, as of the date hereof, there is no proceeding pending for the total
or partial condemnation of such Mortgaged Property that would have a material
adverse effect on the value of the Mortgaged Property;

               (xiv) The Seller has inspected or caused to be inspected each
related Mortgaged Property within the past twelve months, or the originator of
the Mortgage Loan inspected or caused to be inspected each related Mortgage
Property within three months of origination of the Mortgage Loan;

               (xv) No Mortgage Loan has a shared appreciation feature, any
other contingent interest feature or a negative amortization feature other than
the ARD Loans which may have negative amortization from and after the
Anticipated Repayment Date;

               (xvi)    Each  Mortgage  Loan is a whole loan and  contains  no
equity participation by Seller;

               (xvii) The Mortgage Rate (exclusive of any default interest, late
charges, or prepayment premiums) of such Mortgage Loan complied as of the date
of origination with, or is exempt from, applicable state or federal laws,
regulations and other requirements pertaining to usury; and any and all other
requirements of any federal, state or local laws, including, without limitation,
truth-in-lending, real estate settlement procedures, equal credit opportunity or
disclosure laws, applicable to such Mortgage Loan have been complied with as of
the date of origination of such Mortgage Loan;

               (xviii) Neither the Seller nor to the Seller's knowledge, any
originator, committed any fraudulent acts during the origination process of any
Mortgage Loan and the origination, servicing and collection of each Mortgage
Loan is in all respects legal, proper and prudent in accordance with customary
industry standards, and no other person has been granted or conveyed the right
to service the Mortgage Loans or receive any consideration in connection
therewith, except as provided in the Pooling and Servicing Agreement;

               (xix) All taxes and governmental assessments that became due and
owing prior to the Closing Date with respect to each related Mortgaged Property
have been paid or an escrow of funds in an amount sufficient to cover such
payments has been established;

               (xx) All escrow deposits and payments required pursuant to each
Mortgage Loan are in the possession, or under the control, of the Seller or its
agent and there are no deficiencies in connection therewith and all such escrows
and deposits have been conveyed by the Seller to the Depositor and identified as
such with appropriate detail;

               (xxi) Each related Mortgaged Property is insured by a fire and
extended perils insurance policy, issued by an insurer meeting the requirements
of the Pooling and Servicing Agreement, in an amount not less than the
replacement cost (with no deduction for physical depreciation) and the amount
necessary to avoid the operation of any co-insurance provisions with respect to
the related Mortgaged Property; each related Mortgaged Property is also covered
by business interruption insurance which covers a period of not less than 12
months and comprehensive general liability insurance in amounts generally
required by institutional 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; such insurance names the
lender under the Mortgage Loan and its successors and assigns as a named or
additional insured; each related Mortgage Loan obligates the related borrower to
maintain all such insurance and, at such borrower's failure to do so, authorizes
the lender to maintain such insurance at the borrower's cost and expense and to
seek reimbursement therefor from such borrower;

               (xxii) There is no monetary default, breach, violation or event
of acceleration existing under the related Mortgage Loan. To the Seller's
knowledge, there is no (a) material non-monetary default, breach, violation or
event of acceleration existing under the related Mortgage Loan or (b) event
(other than payments due but not yet delinquent) which, with the passage of time
or with notice and the expiration of any grace or cure period, would and does
constitute a default, breach, violation or event of acceleration;

               (xxiii) No Mortgage Loan has been more than 30 days delinquent
since origination and as of the Cut-off Date no Mortgage Loan is 30 or more days
delinquent;

               (xxiv) Each related Mortgage contains provisions so as to render
the rights and remedies of the holder thereof adequate for the realization
against the Mortgaged Property of the benefits of the security, including
realization by judicial or, if applicable, non-judicial foreclosure, and there
is no exemption available to the borrower which would interfere with such right
to foreclose (except as may be imposed by bankruptcy, insolvency, moratorium,
redemption or other similar laws affecting creditors' rights generally, or by
general principles of equity) and to the Seller's knowledge, no borrower is a
debtor in a state or federal bankruptcy or insolvency proceeding;

               (xxv) At origination, each borrower represented and warranted
that except as set forth in certain environmental reports and to its knowledge
it has not used, caused or permitted to exist and will not use, cause or permit
to exist on the related Mortgaged Property any hazardous materials in any manner
which violates federal, state or local laws, ordinances, regulations, orders,
directives or policies governing the use, storage, treatment, transportation,
manufacture, refinement, handling, production or disposal of hazardous materials
or other environmental laws; the related borrower or an affiliate or an
affiliate thereof agreed to indemnify, defend and hold the mortgagee and its
successors and assigns harmless from and against losses, liabilities, damages,
injuries, penalties, fines, expenses, and claims of any kind whatsoever
(including attorneys' fees and costs) paid, incurred or suffered by, or asserted
against, any such party resulting from a breach of the foregoing
representations, warranties or covenants given by the borrower in connection
with such Mortgage Loan. A Phase I environmental report and with respect to
certain Mortgage Loans, a Phase II environmental report, was conducted by a
reputable environmental engineer in connection with such Mortgage Loan, which
report did not indicate any material non-compliance with applicable
environmental laws or material existence of hazardous materials or, if any
material non-compliance or material existence of hazardous materials was
indicated in any such report, funds sufficient to cure such findings have been
escrowed by the related borrower and held by the related mortgagee or an
operations and maintenance program has been required to be instituted by the
related borrower. To the best of the Seller's knowledge, in reliance on such
environmental reports and except as set forth in such environmental reports,
each Mortgaged Property is in material compliance with all applicable federal,
state and local environmental laws, and to the best of the Seller's knowledge,
no notice of violation of such laws has been issued by any governmental agency
or authority, except, in all cases, as indicated in certain 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;

               (xxvi) (1) Each Mortgage Loan contains provisions for the
acceleration of the payment of the unpaid principal balance of such Mortgage
Loan if, without the consent of the holder of the Mortgage (and the mortgage
requires the mortgagor to pay all fees and expenses associated with obtaining
such consent), the related Mortgaged Property is directly or indirectly
transferred or sold, and (2) except with respect to transfers of certain
interests in the related Borrower to persons already holding interests in the
Borrower, their family members and other estate related transfers that satisfy
certain criteria specified in the related Mortgage (which criteria is consistent
with the practices of prudent commercial mortgage lenders), each Mortgage Loan
with a Stated Principal Balance of over $20,000,000 also contains the provisions
for the acceleration of the payment of the unpaid principal balance of such
Mortgage Loan if, without the consent of the holder of the Mortgage, (and the
mortgage requires the mortgagor to pay all fees and expenses associated with
obtaining such consent) a controlling interest in the related Borrower is
directly or indirectly transferred or sold;

               (xxvii) All improvements included in any MAI appraisals are
within the boundaries of the related Mortgaged Property, except for de minimis
encroachments onto adjoining parcels for which the Seller has obtained title
insurance against losses arising therefrom and no improvements on adjoining
parcels encroach onto the related Mortgaged Property except for de minimis
encroachments;

               (xxviii) The mortgage loan schedule which is attached as an
exhibit to the Pooling and Servicing Agreement is complete and accurate in all
material respects as of the dates of the information set forth therein;

               (xxix) With respect to any Mortgage Loan where all or a material
portion of the estate of the related borrower therein is a leasehold estate,
based upon the terms of the ground lease and any estoppel received from the
ground lessor, the Seller represents and warrants that:

                  (A) The ground lease or a memorandum regarding such ground
      lease has been duly recorded. The ground lease permits the interest of the
      lessee to be encumbered by the related Mortgage and does not restrict the
      use of the related Mortgaged Property by such lessee, its successors or
      assigns in a manner that would adversely affect the security provided by
      the related Mortgage. To the Seller's best knowledge, there has been no
      material change in the terms of the ground lease since its recordation,
      except by any written instruments which are included in the related
      mortgage file;

                  (B) The lessor under such ground lease has agreed in a writing
      included in the related mortgage file that the ground lease may not be
      amended, modified, canceled or terminated without the prior written
      consent of the lender and that any such action without such consent is not
      binding on the lender, its successors or assigns;

                  (C) The ground lease has an original term (or an original term
      plus one or more optional renewal terms, which, under all circumstances,
      may be exercised, and will be enforceable, by the lender) that extends not
      less than 20 years beyond the stated maturity of the related Mortgage
      Loan;

                  (D) Based on the title insurance policy (or binding commitment
      therefor) obtained by the Seller, the ground lease is not subject to any
      liens or encumbrances superior to, or of equal priority with, the
      Mortgage, subject to Permitted Encumbrances and liens that encumber the
      ground lessor's fee interest;

                  (E) The ground lease is assignable to the lender under the
      leasehold estate and its assigns without the consent of the lessor
      thereunder;

                  (F) As of the Closing Date, the ground lease is in full force
      and effect, the Seller has no actual knowledge that any default beyond
      applicable notice and grace periods has occurred, and there is no existing
      condition which, but for the passage of time or giving of notice, would
      result in a default under the terms of the ground lease;

                  (G) The ground lease or ancillary agreement between the lessor
      and the lessee requires the lessor to give notice of any default by the
      lessee to the lender;

                  (H) A lender is permitted a reasonable opportunity (including,
      where necessary, sufficient time to gain possession of the interest of the
      lessee under the ground lease through legal proceedings, or to take other
      action so long as the lender is proceeding diligently) to cure any default
      under the ground lease which is curable after the receipt of notice of any
      default before the lessor may terminate the ground lease. All rights of
      the lender under the ground lease and the related Mortgage (insofar as it
      relates to the ground lease) may be exercised by or on behalf of the
      lender;

                  (I) The ground lease does not impose any restrictions on
      subletting that would be viewed as commercially unreasonable by an
      institutional investor. The lessor is not permitted to disturb the
      possession, interest or quiet enjoyment of any subtenant of the lessee in
      the relevant portion of the Mortgaged Property subject to the ground lease
      for any reason, or in any manner, which would adversely affect the
      security provided by the related Mortgage;

                  (J) Under the terms of the ground lease and the related
      Mortgage, any related insurance proceeds or condemnation award (other than
      in respect of a total or substantially total loss or taking) will be
      applied either to the repair or restoration of all or part of the related
      Mortgaged Property, with the lender or a trustee appointed by it having
      the right to hold and disburse such proceeds as repair or restoration
      progresses, or to the payment of the outstanding principal balance of the
      Mortgage Loan, together with any accrued interest, except that in the case
      of condemnation awards, the ground lessor may be entitled to a portion of
      such award;

                  (K) Under the terms of the ground lease and the related
      Mortgage, any related insurance proceeds, or condemnation award in respect
      of a total or substantially total loss or taking of the related Mortgaged
      Property will be applied first to the payment of the outstanding principal
      balance of the Mortgage Loan, together with any accrued interest (except
      as provided by applicable law or in cases where a different allocation
      would not be viewed as commercially unreasonable by any institutional
      investor, taking into account the relative duration of the ground lease
      and the related Mortgage and the ratio of the market value of the related
      Mortgaged Property to the outstanding principal balance of such Mortgage
      Loan). Until the principal balance and accrued interest are paid in full,
      neither the lessee nor the lessor under the ground lease will have an
      option to terminate or modify the ground lease without the prior written
      consent of the lender as a result of any casualty or partial condemnation,
      except to provide for an abatement of the rent; and

                  (L) Provided that the lender cures any defaults which are
      susceptible to being cured, the lessor has agreed to enter into a new
      lease upon termination of the ground lease for any reason, including
      rejection of the ground lease in a bankruptcy proceeding;

               (xxx) With respect to Mortgage Loans that are
cross-collateralized, all other loans that are cross-collateralized by such
Mortgage Loans are included in the Trust Fund;

               (xxxi) Neither Seller nor any affiliate thereof has any
obligation to make any capital contribution to any borrower under a Mortgage
Loan, other than contributions made on or prior to the Closing Date;

               (xxxii) (1) The Mortgage Loan is directly secured by a Mortgage
on a commercial property or multifamily residential property, and (2) the fair
market value of such real property, as evidenced by an MAI appraisal 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 (a) 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 (b) at the Closing Date; provided that the
fair market value of the real property interest must first be reduced by (A) the
amount of any lien on the real property interest that is senior to the Mortgage
Loan (unless such senior lien also secures a Mortgage Loan, in which event the
computation described in (a) and (b) shall be made on an aggregated basis) and
(B) a proportionate amount of any lien that is in parity with the Mortgage Loan
(unless such other lien secures a Mortgage Loan that is cross-collateralized
with such Mortgage Loan, in which event the computation described in (a) and (b)
shall be made on an aggregate basis);

               (xxxiii) There are no subordinate mortgages encumbering the
related Mortgaged Property, nor are there any preferred equity interests held by
the Seller or any mezzanine debt related to such Mortgaged Property, except as
set forth in the Prospectus Supplement, this Exhibit A or in the related
Mortgage Loan Purchase Agreement;

               (xxxiv) The loan documents executed in connection with each
Mortgage Loan require that the related borrower be a single-purpose entity (for
this purpose, "single-purpose entity" shall mean an entity, other than an
individual, that is formed or organized solely for the purpose of owning and
operating one or more Mortgaged Properties, is prohibited from engaging in any
business unrelated to such property and the related Mortgage Loan, does not have
any assets other than those related to its interest in the related Mortgaged
Property or its financing, or any indebtedness other than as permitted under the
related Mortgage Loan);

               (xxxv) Each Mortgage Loan prohibits the related borrower from
mortgaging or otherwise encumbering the Mortgaged Property and, except in
connection with trade debt and equipment financings in the ordinary course of
borrower's business, from carrying any additional indebtedness, except, in each
case, liens contested in accordance with the terms of the Mortgage Loans;

               (xxxvi) Each borrower covenants in the Mortgage Loan documents
that it shall remain in material compliance with all material licenses, permits
and other legal requirements necessary and required to conduct its business;

               (xxxvii) Each Mortgaged Property is located on or adjacent to a
dedicated road, or has access to an irrevocable easement permitting ingress and
egress, 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 is a separate tax parcel;

               (xxxviii) Based solely on a flood zone certification or a survey
of the related Mortgaged Property, if any portion of the improvements on the
Mortgaged Property is located in an area identified by the Federal Emergency
Management Agency, with respect to certain Mortgage Loans, or the Secretary of
Housing and Urban Development with respect to other Mortgage Loans, as having
special flood hazards, the terms of the Mortgage Loan require the borrower to
maintain flood insurance or at such borrowers failure to do so, authorizes the
Lender to maintain such insurance at the cost and expense of the borrower;

               (xxxix) To the knowledge of the Seller, with respect to each
Mortgage which is a deed of trust, a trustee, duly qualified under applicable
law to serve as such, currently so serves and is named in the deed of trust or
has been substituted in accordance with applicable law, and except in connection
with a trustee's sale after a default by the related borrower, no fees are
payable to such trustee;

               (xl)     RESERVED.

               (xli)    RESERVED.

               (xlii) Except as disclosed in the Prospectus Supplement, to the
knowledge of the Seller as of the Closing Date, there was no pending action,
suit or proceeding, arbitration or governmental investigation against any
borrower or Mortgaged Property, an adverse outcome of which would materially and
adversely affect such borrower's ability to perform under the related Mortgage
Loan;

               (xliii) No advance of funds has been made by the Seller to the
related borrower (other than mezzanine debt and the acquisition of preferred
equity interests by the Preferred Interest Holder, as disclosed in the
Prospectus Supplement) and no funds have been received from any person other
than, or on behalf of, the related borrower for, or on account of, payments due
on the Mortgage Loan;

               (xliv) To the extent required under applicable law, as of the
Cut-off Date or as of the date that such entity held the Mortgage Note, each
holder of the Mortgage Note was authorized to transact and do business in the
jurisdiction in which each related Mortgaged Property is located, or failure to
be so authorized did not materially affect the ability of such holder to
transact business in the jurisdiction in which each related Mortgaged Property
is located while such entity was the holder;

               (xlv)    All   collateral  for  the  Mortgage  Loans  is  being
transferred as part of the Mortgage Loans;

               (xlvi) Except as disclosed in the Prospectus Supplement, in
connection with Crossed Loans and Multi-Property Loans, no Mortgage Loan
requires the lender to release any portion of the Mortgaged Property from the
lien of the related Mortgage except upon (a) payment in full or defeasance of
the related Mortgage Loan, (b) releases of unimproved out-parcels or (c)
releases of portions of the Mortgaged Property which will not have a material
adverse effect on the value of the collateral for the related Mortgage Loan;

               (xlvii) Any insurance proceeds in respect of a casualty loss or
taking will be applied either to (a) the repair or restoration of all or part of
the related Mortgaged Property, with, in the case of all Mortgage Loans other
than Credit Lease Loans and with respect to all casualty losses or takings in
excess of a specified percentage of the related loan amount, the lender (or a
trustee appointed by it) having the right to hold and disburse such proceeds as
the repair or restoration progresses or (b) to the payment of the outstanding
principal balance of such Mortgage Loan together with any accrued interest
thereon;

               (xlviii) Each Form UCC-1 financing statement, if any, filed with
respect to personal property constituting a part of the related Mortgaged
Property, together with each Form UCC-2 or UCC-3 assignment, if any, of such
financing statement to the Seller and each Form UCC-2 or UCC-3 assignment, if
any, of such financing statement executed by the Seller in blank which the
Trustee or its designee is authorized to complete (and but for the insertion of
the name of the assignee and any related filing information which is not yet
available to the Seller) is in suitable form for filing in the filing office in
which such financing statement was filed;

               (xlix) To the Seller's knowledge, (a) all material commercial
leases affecting the Mortgaged Properties securing the Mortgage Loans are in
full force and effect and (b) there exists no default under any such material
commercial lease either by the lessee thereunder or by the related borrower that
could give rise to the termination of such lease;

               (l) The improvements located on or forming part of each Mortgaged
Property comply with applicable zoning laws and ordinances, or constitute a
legal non-conforming use or structure or, if any such improvement does not so
comply, such non-compliance does not materially and adversely affect the value
of the related Mortgaged Property. With respect to properties with a Stated
Principal Balance of over $10,000,000, if the related Mortgaged Property does
not so comply, to the extent the Seller is aware of such non-compliance, it has
required the related Borrower to obtain law and ordinance insurance coverage in
amounts customarily required by prudent commercial mortgage lenders;

               (li) Each Mortgage Loan constitutes a "qualified mortgage" within
the meaning of Section 860G(a)(3) of the Code (but without regard to the rule in
Treasury Regulation (as defined herein) 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);

               (lii) With respect to any Mortgage Loan that pursuant to the
mortgage documents can be defeased, (i) the Mortgage Loan cannot be defeased
within two years of the Closing Date, (ii) the borrower can pledge only United
States government securities in an amount sufficient to make all scheduled
payments under the Mortgage Loan when due, (iii) the borrower is required to
provide independent certified public accountants certification that the
collateral is sufficient to make such payments, (iv) the loan may be required to
be assumed by a single-purpose entity designated by the holder of the Mortgage
Loan, and (v) 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;

               (liii) The Mortgage Loan Documents for each Mortgage Loan provide
that the related borrower thereunder shall be liable to the Seller for any
losses incurred by the Seller due to (i) the misapplication or misappropriation
of rents, insurance proceeds or condemnation awards, (ii) any willful act of
material waste, (iii) any breach of the environmental covenants contained in the
related Mortgage Loan Documents, (iv) fraud, and (v) any act resulting in the
Mortgaged Property becoming an asset in a voluntary bankruptcy or insolvency
proceeding;

               (liv) If such Mortgage Loan is an ARD Loan, it commenced
amortizing on its initial scheduled Due Date and provides that: (i) its Mortgage
Rate will increase by no more than two percentage points in connection with the
passage of its Anticipated Repayment Date and so long as the Mortgage Loan is an
asset of the Trust Fund; (ii) its Anticipated Repayment Date is not less than
seven years following the origination of such Mortgage Loan; (iii) no later than
the related Anticipated Repayment Date, if it has not previously done so, the
related borrower is required to enter into a "lockbox agreement" whereby all
revenue from the related Mortgaged Property shall be deposited directly into a
designated account controlled by the Servicer; and (iv) any cash flow from the
related Mortgaged Property that is applied to amortize such Mortgage Loan
following its Anticipated Repayment Date shall, to the extent such net cash flow
is in excess of the Monthly Payment payable therefrom, be net of budgeted and
discretionary (servicer approved) capital expenditures.

               (lv) Except as disclosed in the Prospectus Supplement, not more
than 5% of the aggregate initial principal amount of the Mortgage Loans have the
same Mortgagor or, to the Seller's best knowledge, have mortgagors that are
affiliates of each other;

               (lvi) The Participation and Intercreditor Agreement (the
"L'Enfant Participation Agreement") relating to Loan No. 8 on the Mortgage Loan
Schedule (the L'Enfant Loan) represents the legal, valid and binding obligations
of the Seller, enforceable against the Seller, as the Other B Note Participant
(as defined in the L'Enfant Participation Agreement), enforceable against the
Seller in accordance with its terms, except as such enforcement may be limited
by bankruptcy, insolvency, reorganization of other similar laws affecting the
enforcement of creditors rights generally, and by general principles of equity
(regardless of whether such enforceability is considered in a proceeding in
equity of at law).

               (lvii) The Intercreditor Agreement (the "1211 Avenue of the
Americas Intercreditor Agreement") relating to Loan No. 3 on the Mortgage Loan
Schedule (the 1211 Avenue of the Americas Loan) represents the legal, valid and
binding obligations of the Seller, enforceable against the Seller, as the Other
Note Holder (as defined in the 1211 Avenue of the Americas Intercreditor
Agreement), enforceable against the Seller in accordance with its terms, except
as such enforcement may be limited by bankruptcy, insolvency, reorganization of
other similar laws affecting the enforcement of creditors rights generally, and
by general principles of equity (regardless of whether such enforceability is
considered in a proceeding in equity of at law).

<PAGE>

EXHIBIT A-2

                        REPRESENTATIONS AND WARRANTIES
                REGARDING THE MORTGAGE LOANS ON SCHEDULE II-B

            Seller represents and warrants with respect to each Mortgage Loan,
as applicable, that, except as set forth on EXHIBIT _ annexed hereto and made a
part hereof, the following statements are true and correct in all material
respects, as of the date hereof:

               (i) Immediately prior to the sale, transfer and assignment to the
Purchaser, no Mortgage Note or Mortgage was subject to any assignment (other
than to Seller), participation or pledge, and Seller had good and marketable
title to, and was the sole owner of, the related Mortgage Loan;

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

               (iii) 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;

               (iv) Each related Mortgage Note, Mortgage, assignment of leases
(if any) and other agreement executed in connection with such Mortgage Loan is
the legal, valid and binding obligation of the related 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 generally, 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 defense, counterclaim, or right of
rescission available to the related borrower with respect to such Mortgage Note,
Mortgage, assignment of leases and other agreements;

               (v) Each related assignment of leases creates a valid first
priority assignment of, or a valid first priority security interest in, certain
rights under the related lease, subject only to a license granted to the related
borrower to exercise certain rights and to perform certain obligations of the
lessor under such lease, including the right to operate the related Mortgaged
Property; no person other than the related borrower owns any interest in any
payments due under such lease that is superior to or of equal priority with the
lender's interest therein;

               (vi) Each related assignment of Mortgage from Seller to the
Purchaser and related assignment of the assignment of leases, if any, or
assignment of any other agreement executed in connection with such Mortgage Loan
from Seller to the Purchaser constitutes the legal, valid and binding assignment
from Seller to the Purchaser, except as such enforcement may be limited by
bankruptcy, insolvency, reorganization, liquidation, receivership, moratorium or
other laws relating to or affecting creditors' rights generally, or by general
principles of equity (regardless of whether such enforceability is considered in
a proceeding in equity or at law);

               (vii) Since origination, and except as set forth in the related
mortgage file, such Mortgage Loan has not been modified, altered, satisfied,
canceled, subordinated or rescinded and, each related Mortgaged Property has not
been released from the lien of the related Mortgage in any manner which
materially interferes with the security intended to be provided by such
Mortgage;

               (viii) Each related Mortgage is a valid and enforceable first
lien on the related Mortgaged Property (subject to Permitted Encumbrances (as
defined below)), 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 in all places necessary to perfect a valid security interest in the
personal property necessary to operate the Mortgaged Property; any security
agreement, chattel mortgage or equivalent document related to and delivered in
connection with the Mortgage Loan establishes and creates a valid and
enforceable lien on property described therein (except as enforceability may be
limited by bankruptcy or other laws affecting creditor's rights generally or by
the application of general principles of equity).

               (ix)     Seller has not taken any action  that would  cause the
representations  and warranties made by each related  borrower in the Mortgage
Loan not to be true;

               (x)      Seller   has   no   knowledge    that   the   material
representations  and warranties made by each related borrower in such Mortgage
Loan are not true in any material respect;

               (xi) The lien of each related Mortgage is a first priority lien
on the fee or leasehold interest of the related borrower in the original
principal amount of such Mortgage Loan or allocated loan amount of the portions
of the Mortgaged Property covered thereby (as set forth in the related Mortgage)
after all advances of principal and is insured by an ALTA lender's title
insurance policy (or a binding commitment therefor), or its equivalent as
adopted in the applicable jurisdiction, insuring 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 due and
payable, (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) set forth in
such policy, none of which, individually or in the aggregate, materially
interferes with the current general use of the Mortgaged Property or materially
interferes with the security intended to be provided by such Mortgage or with
the related borrower's ability to pay its obligations when they become due or
the value of the Mortgaged Property (items (a), (b) and (c) collectively,
"Permitted Encumbrances"); the premium for such policy was paid in full; such
policy was issued by a title insurance company licensed to issue policies in the
state in which the related Mortgaged Property is located and is assignable to
the Purchaser 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 the Mortgage Loan Purchase Agreement; no claims
have been made under such policy and 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;

               (xii) The proceeds of such Mortgage Loan have been fully
disbursed and there is no requirement for future advances thereunder and Seller
covenants that it will not make any future advances under the Mortgage Loan to
the related borrower;

              (xiii) As of the later of the date of origination of such Mortgage
Loan or the most recent inspection of the related Mortgaged Property by Seller,
as applicable, and to the knowledge of Seller as of the Closing Date, each
related Mortgaged Property is free of any material damage that would affect
materially and adversely the value of such Mortgaged Property as security for
the Mortgage Loan or reserves have been established to remediate such damage
and, as of the closing date for each Mortgage Loan and, to 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 value of the Mortgaged Property;

               (xiv) Seller has inspected or caused to be inspected each related
Mortgaged Property within the past twelve months, or the originator of the
Mortgage Loan inspected or caused to be inspected each related Mortgage Property
within three months of origination of the Mortgage Loan;

               (xv)     No Mortgage  Loan has a shared  appreciation  feature,
any other contingent interest feature or a negative amortization feature;

               (xvi)    Each  Mortgage  Loan is a whole loan and  contains  no
equity participation by Seller;

              (xvii) The Mortgage Rate (exclusive of any default interest, late
charges, or prepayment premiums) of such Mortgage Loan complied as of the date
of origination with, or is exempt from, applicable state or federal laws,
regulations and other requirements pertaining to usury; and any and all other
requirements of any federal, state or local laws, including, without limitation,
truth-in-lending, real estate settlement procedures, equal credit opportunity or
disclosure laws, applicable to such Mortgage Loan have been complied with as of
the date of origination of such Mortgage Loan;

            (xviii) Neither Seller nor to Seller's knowledge, any originator,
committed any fraudulent acts during the origination process of any Mortgage
Loan and the origination, servicing and collection of each Mortgage Loan is in
all respects legal, proper and prudent in accordance with customary industry
standards, and no other person has been granted or conveyed the right to service
the Mortgage Loans or receive any consideration in connection therewith, except
as provided in the Pooling and Servicing Agreement;

               (xix) All taxes and governmental assessments that became due and
owing prior to the Closing Date with respect to each related Mortgaged Property
have been paid or an escrow of funds in an amount sufficient to cover such
payments has been established;

               (xx) All escrow deposits and payments required pursuant to each
Mortgage Loan are in the possession, or under the control, of Seller or its
agent and there are no deficiencies in connection therewith and all such escrows
and deposits have been conveyed by Seller to the Purchaser and identified as
such with appropriate detail;

               (xxi) Each related Mortgaged Property is insured by a fire and
extended perils insurance policy, issued by an insurer meeting the requirements
of the Pooling and Servicing Agreement, in an amount not less than the
replacement cost (with no deduction for physical depreciation) and the amount
necessary to avoid the operation of any co-insurance provisions with respect to
the related Mortgaged Property; each related Mortgaged Property is also covered
by business interruption insurance which covers a period of not less than 12
months and comprehensive general liability insurance in amounts generally
required by institutional 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; such insurance names the
lender under the Mortgage Loan and its successors and assigns as a named or
additional insured; each related Mortgage Loan obligates the related borrower to
maintain all such insurance and, at such borrower's failure to do so, authorizes
the lender to maintain such insurance at the borrower's cost and expense and to
seek reimbursement therefor from such borrower;

              (xxii) There is no monetary default, breach, violation or event of
acceleration existing under the related Mortgage Loan. To Seller's knowledge,
there is no (a) material non-monetary default, breach, violation or event of
acceleration existing under the related Mortgage Loan or (b) event (other than
payments due but not yet delinquent) which, with the passage of time or with
notice and the expiration of any grace or cure period, would and does constitute
a material default, breach, violation or event of acceleration;

            (xxiii) No Mortgage Loan has been more than 30 days delinquent since
origination and as of the Cut-off Date no Mortgage Loan is 30 or more days
delinquent;

             (xxiv) Each related Mortgage contains provisions so as to render
the rights and remedies of the holder thereof adequate for the realization
against the Mortgaged Property of the benefits of the security, including
realization by judicial or, if applicable, non-judicial foreclosure, and there
is no exemption available to the borrower which would interfere with such right
to foreclose (except as may be imposed by bankruptcy, insolvency, moratorium,
redemption or other similar laws affecting creditors' rights generally, or by
general principles of equity) and to Seller's knowledge, no borrower is a debtor
in a state or federal bankruptcy or insolvency proceeding;

              (xxv) At origination, each borrower represented and warranted that
except as set forth in certain environmental reports and to its knowledge it has
not used, caused or permitted to exist and will not use, cause or permit to
exist on the related Mortgaged Property any hazardous materials in any manner
which violates federal, state or local laws, ordinances, regulations, orders,
directives or policies governing the use, storage, treatment, transportation,
manufacture, refinement, handling, production or disposal of hazardous materials
or other environmental laws; the related borrower or an affiliate or an
affiliate thereof agreed to indemnify, defend and hold the mortgagee and its
successors and assigns harmless from and against losses, liabilities, damages,
injuries, penalties, fines, expenses, and claims of any kind whatsoever
(including attorneys' fees and costs) paid, incurred or suffered by, or asserted
against, any such party resulting from a breach of the foregoing
representations, warranties or covenants given by the borrower in connection
with such Mortgage Loan. A Phase I environmental report and with respect to
certain Mortgage Loans, a Phase II environmental report, was conducted by a
reputable environmental engineer in connection with such Mortgage Loan, which
report did not indicate any material non-compliance with applicable
environmental laws or material existence of hazardous materials or, if any
material non-compliance or material existence of hazardous materials was
indicated in any such report, funds sufficient to cure such findings have been
escrowed by the related borrower and held by the related mortgagee or an
operations and maintenance program has been required to be instituted by the
related borrower. To the best of Seller's knowledge, in reliance on such
environmental reports and except as set forth in such environmental reports,
each Mortgaged Property is in material compliance with all applicable federal,
state and local environmental laws, and to the best of 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 certain environmental reports
or other documents previously provided to the Rating Agencies; and 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;

             (xxvi) (1) Each Mortgage Loan contains provisions for the
acceleration of the payment of the unpaid principal balance of such Mortgage
Loan if, without the consent of the holder of the Mortgage, the related
Mortgaged Property is directly or indirectly transferred or sold (except for
transfers of stock of the related Borrower in connection with the assignment of
a proprietary lease for an apartment unit by a tenant-shareholder of the related
Borrower to other persons who by virtue of such transfers become
tenant-shareholders), and (2) except with respect to transfers of certain
interests in the related Borrower to persons already holding interests in the
Borrower, their family members and other estate related transfers that satisfy
certain criteria specified in the related Mortgage (which criteria is consistent
with the practices of prudent commercial mortgage lenders), each Mortgage Loan
with a Stated Principal Balance of over $20,000,000, also contains provisions
for the acceleration of the payment of the unpaid principal balance of such
Mortgage Loan if, without the consent of the holder of the Mortgage, a
controlling interest in the related Borrower is directly or indirectly
transferred or sold;

            (xxvii) All improvements included in any MAI appraisals are within
the boundaries of the related Mortgaged Property, except for de minimis
encroachments onto adjoining parcels for which Seller has obtained affirmative
title insurance with respect to such encroachments in customary form and no
improvements on adjoining parcels encroach onto the related Mortgaged Property
except for de minimis encroachments;

                (xxviii) The mortgage loan schedule which is attached as an
exhibit to the Pooling and Servicing Agreement is complete and accurate in all
material respects as of the dates of the information set forth therein;

             (xxix) With respect to any Mortgage Loan where all or a material
portion of the estate of the related borrower therein is a leasehold estate,
based upon the terms of the ground lease and any estoppel received from the
ground lessor, Seller represents and warrants that:

                  (A) The ground lease or a memorandum regarding such ground
      lease has been duly recorded. The ground lease permits the interest of the
      lessee to be encumbered by the related Mortgage and does not restrict the
      use of the related Mortgaged Property by such lessee, its successors or
      assigns in a manner that would adversely affect the security provided by
      the related Mortgage. To Seller's best knowledge, there has been no
      material change in the terms of the ground lease since its recordation,
      except by any written instruments which are included in the related
      mortgage file;

                  (B) The lessor under such ground lease has agreed in a writing
      included in the related mortgage file that the ground lease may not be
      amended, modified, canceled or terminated without the prior written
      consent of the lender and that any such action without such consent is not
      binding on the lender, its successors or assigns;

                  (C) The ground lease has an original term (or an original term
      plus one or more optional renewal terms, which, under all circumstances,
      may be exercised, and will be enforceable, by the lender) that extends not
      less than 20 years beyond the stated maturity of the related Mortgage
      Loan;

                  (D) Based on the title insurance policy (or binding commitment
      therefor) obtained by Seller, the ground lease is not subject to any liens
      or encumbrances superior to, or of equal priority with, the Mortgage,
      subject to Permitted Encumbrances and liens that encumber the ground
      lessor's fee interest;

                  (E) The ground lease is assignable to the lender under the
      leasehold estate and its assigns without the consent of the lessor
      thereunder;

                  (F) As of the Closing Date, the ground lease is in full force
      and effect, Seller has no actual knowledge of any default beyond
      applicable notice and grace periods has occurred, and there is no existing
      condition which, but for the passage of time or giving of notice, would
      result in a default under the terms of the ground lease;

                  (G) The ground lease or ancillary agreement between the lessor
      and the lessee requires the lessor to give notice of any default by the
      lessee to the lender;

                  (H) A lender is permitted a reasonable opportunity (including,
      where necessary, sufficient time to gain possession of the interest of the
      lessee under the ground lease through legal proceedings, or to take other
      action so long as the lender is proceeding diligently) to cure any default
      under the ground lease which is curable after the receipt of notice of any
      default before the lessor may terminate the ground lease. All rights of
      the lender under the ground lease and the related Mortgage (insofar as it
      relates to the ground lease) may be exercised by or on behalf of the
      lender;

                  (I) The ground lease does not impose any restrictions on
      subletting that would be viewed as commercially unreasonable by an
      institutional investor. The lessor is not permitted to disturb the
      possession, interest or quiet enjoyment of any subtenant of the lessee in
      the relevant portion of the Mortgaged Property subject to the ground lease
      for any reason, or in any manner, which would adversely affect the
      security provided by the related Mortgage;

                  (J) Under the terms of the ground lease and the related
      Mortgage, any related insurance proceeds or condemnation award (other than
      in respect of a total or substantially total loss or taking) will be
      applied either to the repair or restoration of all or part of the related
      Mortgaged Property, with the lender or a trustee appointed by it having
      the right to hold and disburse such proceeds as repair or restoration
      progresses, or to the payment of the outstanding principal balance of the
      Mortgage Loan, together with any accrued interest, except that in the case
      of condemnation awards, the ground lessor may be entitled to a portion of
      such award;

                  (K) Under the terms of the ground lease and the related
      Mortgage, any related insurance proceeds, or condemnation award in respect
      of a total or substantially total loss or taking of the related Mortgaged
      Property will be applied first to the payment of the outstanding principal
      balance of the Mortgage Loan, together with any accrued interest (except
      as provided by applicable law or in cases where a different allocation
      would not be viewed as commercially unreasonable by institutional
      investors, taking into account the relative duration of the ground lease
      and the related Mortgage and the ratio of the market value of the related
      Mortgaged Property to the outstanding principal balance of such Mortgage
      Loan). Until the principal balance and accrued interest are paid in full,
      neither the lessee nor the lessor under the ground lease will have an
      option to terminate or modify the ground lease without the prior written
      consent of the lender as a result of any casualty or partial condemnation,
      except to provide for an abatement of the rent; and

                  (L) Provided that the lender cures any defaults which are
      susceptible to being cured, the lessor has agreed to enter into a new
      lease upon termination of the ground lease for any reason, including
      rejection of the ground lease in a bankruptcy proceeding;

               (xxx) With respect to Mortgage Loans that are
cross-collateralized, all other loans that are cross-collateralized by such
Mortgage Loans are included in the Trust Fund;

               (xxxi) Neither Seller nor any affiliate thereof has any
obligation to make any capital contribution to any borrower under a Mortgage
Loan, other than contributions made on or prior to the Closing Date;

               (xxxii) (1) The Mortgage Loan is directly secured by a Mortgage
on a commercial property or multifamily residential property, and (2) the fair
market value of such real property, as evidenced by an MAI appraisal 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 (a) 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 (b) at the Closing Date; provided that the
fair market value of the real property interest must first be reduced by (A) the
amount of any lien on the real property interest that is senior to the Mortgage
Loan (unless such senior lien also secures a Mortgage Loan, in which event the
computation described in (a) and (b) shall be made on an aggregated basis) and
(B) a proportionate amount of any lien that is in parity with the Mortgage Loan
(unless such other lien secures a Mortgage Loan that is cross-collateralized
with such Mortgage Loan, in which event the computation described in (a) and (b)
shall be made on an aggregate basis);

               (xxxiii) There are no subordinate mortgages encumbering the
related Mortgaged Property, nor are there any preferred equity interests held by
Seller or any mezzanine debt related to such Mortgaged Property, except as set
forth in the Prospectus Supplement and the Mortgage Loan Schedule;

               (xxxiv)  Intentionally omitted;

               (xxxv) Each Mortgage Loan (i) prohibits the related borrower from
mortgaging or otherwise encumbering the Mortgaged Property without the consent
of Seller (which consent, in certain instances, Seller may not unreasonably
withhold) and (ii) prohibits the related borrower from incurring any unsecured
indebtedness in excess of an amount (which amount would not be viewed as
commercially unreasonable) stated in the related Mortgage Loan Documents without
the consent of Seller.

               (xxxvi) Each borrower covenants in the Mortgage Loan documents
that it shall remain in material compliance with all material licenses, permits
and other legal requirements necessary and required to conduct its business;

               (xxxvii) Each Mortgaged Property is located on or adjacent to a
dedicated road, or has access to an irrevocable easement permitting ingress and
egress, 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 is a separate tax parcel;

               (xxxviii) Based solely on a flood zone certification or a survey
of the related Mortgaged Property, if any portion of the improvements on the
Mortgaged Property is located in an area identified by the Federal Emergency
Management Agency, with respect to certain Mortgage Loans, or the Secretary of
Housing and Urban Development with respect to other Mortgage Loans, as having
special flood hazards, the terms of the Mortgage Loan require the borrower to
maintain flood insurance or at such borrowers failure to do so, authorizes the
Lender to maintain such insurance at the cost and expense of the borrower;

               (xxxix) To the knowledge of Seller, with respect to each Mortgage
which is a deed of trust, a trustee, duly qualified under applicable law to
serve as such, currently so serves and is named in the deed of trust or has been
substituted in accordance with applicable law, and except in connection with a
trustee's sale after a default by the related borrower, no fees are payable to
such trustee;

               (xl)     Intentionally Omitted:
                        ---------------------

               (xli)    Intentionally Omitted:
                        ---------------------

              (xlii) Except as disclosed in the Prospectus Supplement, to the
knowledge of Seller as of the Closing Date, there was no pending action, suit or
proceeding, arbitration or governmental investigation against any borrower or
Mortgaged Property, an adverse outcome of which would materially and adversely
affect such borrower's ability to perform under the related Mortgage Loan;

               (xliii) Except with respect to subordinate debt disclosed in the
Mortgage Loan Schedule, no advance of funds has been made by Seller to the
related borrower and no funds have been received from any person other than, or
on behalf of, the related borrower for, or on account of, payments due on the
Mortgage Loan;

               (xliv) To the extent required under applicable law, as of the
Cut-off Date, the holder of the related Mortgage Loan was authorized to transact
and do business in the jurisdiction in which each related Mortgaged Property is
located, or failure to be so authorized does not materially affect the ability
of such holder to transact business in the jurisdiction in which each related
Mortgaged Property is located;

               (xlv)  All   collateral   for  the  Mortgage   Loans  is  being
transferred as part of the Mortgage Loans;

               (xlvi) Except as disclosed in the Prospectus Supplement, in
connection with Crossed Loans, no Mortgage Loan requires the lender to release
any portion of the Mortgaged Property from the lien of the related Mortgage
except upon (a) payment in full or defeasance of the related Mortgage Loan, (b)
releases of unimproved out-parcels or (c) releases of portions of the Mortgaged
Property which will not have a material adverse effect on the value of the
collateral for the related Mortgage Loan;

               (xlvii) Any insurance proceeds in respect of a casualty loss or
taking will be applied either to (a) the repair or restoration of all or part of
the related Mortgaged Property, with, in the case of all Mortgage Loans, and
with respect to all casualty losses or takings in excess of a specified
percentage of the related loan amount, the lender (or a trustee appointed by it)
having the right to hold and disburse such proceeds as the repair or restoration
progresses or (b) to the payment of the outstanding principal balance of such
Mortgage Loan together with any accrued interest thereon;

               (xlviii) Each Form UCC-1 financing statement, if any, filed with
respect to personal property constituting a part of the related Mortgaged
Property, together with each Form UCC-2 or UCC-3 assignment, if any, of such
financing statement to Seller and each Form UCC-2 or UCC-3 assignment, if any,
of such financing statement executed by Seller in blank which the Trustee or its
designee is authorized to complete (and but for the insertion of the name of the
assignee and any related filing information which is not yet available to
Seller) is in suitable form for filing in the filing office in which such
financing statement was filed;

               (xlix) To Seller's knowledge, (a) all material commercial leases
affecting the Mortgaged Properties securing the Mortgage Loans are in full force
and effect and (b) there exists no default under any such material commercial
lease either by the lessee thereunder or by the related borrower that could give
rise to the termination of such lease;

               (l) The improvements located on or forming part of each Mortgaged
Property comply with applicable zoning laws and ordinances, or constitute a
legal non-conforming use or structure or, if any such improvement does not so
comply, such non-compliance does not materially and adversely affect the value
of the related Mortgaged Property. With respect to properties with a Stated
Principal Balance of over $10,000,000, if the related Mortgaged Property does
not so comply, to the extent Seller is aware of such non-compliance, it has
required the related Borrower to obtain law and ordinance insurance coverage in
amounts customarily required by prudent commercial mortgage lenders;

               (li) Each Mortgage Loan constitutes a "qualified mortgage" within
the meaning of Section 860G(a)(3) of the Code (but without regard to the rule in
Treasury Regulation (as defined herein) 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);

               (lii) With respect to any Mortgage Loan that pursuant to the
mortgage documents can be defeased, (i) the Mortgage Loan cannot be defeased
within two years of the Closing Date, (ii) the borrower can pledge only United
States government securities in an amount sufficient to make all scheduled
payments under the Mortgage Loan when due, (iii) the borrower is required to
provide either a certificate or opinion of an independent certified public
accountants that the collateral is sufficient to make such payments, (iv) the
loan may be required to be assumed by a single-purpose entity designated by the
holder of the Mortgage Loan, and (v) the borrower is required to provide an
opinion of counsel be provided that the trustee has a perfected security
interest in such collateral prior to any other claim or interest;

               (liii) With respect to Mortgage Loan Nos. 92, 135 and 145, such
Mortgage Loans are fully recourse to the related Borrowers. Certain of the
Mortgage Loans are non-recourse to the shareholders, officers and/or directors
of the mortgagor, except with respect to damages suffered or incurred by the
holder of the Mortgage relating to or arising out of (i) any claim for damages
against the mortgagor relating to the misapplication of any insurance proceeds
or condemnation awards with respect to the Mortgaged Property, including,
without limitation, any action taken by the shareholder, officer and/or director
of mortgagor on behalf of mortgagor, (ii) any claim relating to any fraud or
misrepresentation by or on behalf of mortgagor, including, without limitation,
any fraud or misrepresentation by the shareholder, officer and/or director of
mortgagor, (iii) any claim relating to a misappropriation of any reserve
accounts, security deposits or rents maintained by mortgagor, including, without
limitation, any misappropriation of any reserve accounts, security deposits or
rents by the shareholder, officer and/or director of mortgagor, (iv) any failure
of mortgagor to comply with the provisions of the related Mortgage governing any
transfer, sale, hypothecation, pledge or further encumbering of the related
Mortgaged Property or any part thereof or (v) any breach by mortgagor of any of
the provisions of the related Mortgage concerning hazardous materials; with
respect to Mortgage Loans No. 34, 35 and 36, the Mortgage Loan Documents for
each Mortgage Loan provide that the related borrower thereunder shall be liable
to the Seller for any losses incurred by the Seller due to (i) the
misapplication or misappropriation of rents, insurance proceeds or condemnation
awards, (ii) any willful act of material waste, (iii) any breach of the
environmental covenants contained in the related Mortgage Loan Documents, (iv)
fraud, and (v) any act resulting in the Mortgaged Property becoming an asset in
a voluntary bankruptcy or insolvency proceeding.

               (liv)    Intentionally Omitted.

               (lv) Except as disclosed in the Prospectus Supplement, not more
than 5% of the aggregate initial principal amount of the Mortgage Loan Pool have
the same Mortgagor or, to Seller's best knowledge, have mortgagors that are
affiliates of each other.

<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 Credit  Suisse First
Boston Mortgage Capital LLC ("CSFBMC");

            2.   that  CSFBMC 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 CSFBMC, 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  Credit  Suisse  First  Boston  Mortgage
            Capital Corp., under date of                      (the "Note");

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

            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 CSFBMC; and

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

                                          CREDIT SUISSE FIRST BOSTON
                                          MORTGAGE CAPITAL LLC

                                          By:

                                             Authorized Signatory

Sworn to before me this

           day of August [__], 2000
----------

<PAGE>

                                    EXHIBIT C

                                     FORM OF

                        ASSIGNMENT OF MORTGAGE(S) AND
                ASSIGNMENT OF ASSIGNMENT OF LESSOR'S INTERESTS
                          IN LEASES, RENTS AND PROFITS

            KNOW ALL MEN BY THESE PRESENTS:

            THAT, as of , 2000, Credit Suisse First Boston Mortgage Capital LLC,
a Delaware limited liability company, whose address is Eleven Madison Avenue,
New York, New York 10010 ("ASSIGNOR") in consideration of ten and 00/100
($10.00) dollars and other good and valuable consideration, paid by Wells Fargo
Bank Minnesota, N.A., as trustee for Credit Suisse First Boston Mortgage
Securities Corp. Commercial Mortgage Pass-Through Certificates, Series 2000-C1,
whose address is 45 Broadway, New York, New York 10001 ("ASSIGNEE"), receipt of
which is acknowledged by ASSIGNOR, hereby sells, assigns, transfers, sets over
and conveys unto the ASSIGNEE certain mortgage(s) and assignments of leases,
rents and profits and other collateral documents as follows:

              See         Schedule "A" attached hereto and incorporated herein
                          by this reference.

            TOGETHER with the note(s), debt(s) and claim(s) secured by said
mortgage(s) and the covenants contained in said mortgage(s), together with all
amendments, supplements and modifications thereto and all liens, financing
statements, guaranties and security interests securing the payment of such
notes, including, without limitation, any other documents recorded in the real
property records of the jurisdiction in which the real property covered by the
mortgage(s) is located with respect to such notes, and any other documents,
agreements, instruments or property relating to such loan(s) and all right,
title, interest, claims, demands, causes of action and judgments securing or
relating to such loan(s); TO HAVE AND TO HOLD the same unto the ASSIGNEE and to
the successors, legal representatives and assigns of the ASSIGNEE forever.

            THIS ASSIGNMENT is made without recourse or representation or
warranty of any kind or nature, express or implied except as expressly set forth
in that certain Mortgage Loan Purchase Agreement, dated as of July 11, 2000
between ASSIGNOR and Credit Suisse First Boston Mortgage Securities Corp.

<PAGE>

            IN WITNESS WHEREOF, the ASSIGNOR has duly executed this Assignment
the __ day of ________ 2000.

IN PRESENCE OF:___

                                       By:____________________________________
                                            Name:
                                            Title:

<PAGE>

STATE OF                )
                        )  ss.:
COUNTY OF               )

            On this day of , 2000, before me the undersigned, a NOTARY PUBLIC OF
, personally appeared , as ______of Credit Suisse First Boston Mortgage Capital
LLC, a Delaware limited liability company, who, I am satisfied, was the maker of
the foregoing instrument and who then stated and acknowledged to me that, as
such officer and maker (1) he was authorized to execute the foregoing instrument
on behalf of said limited liability company and (2) he executed said instrument
as the act and deed of said limited liability company.

            IN TESTIMONY WHEREOF, I have hereunto set my hand and affixed my
official seal at my office in the day and year last above written.

                                       Signature______________________________
                                       Print Name_____________________________
                                       Residing at____________________________
                                                  ____________________________
                                                  ____________________________

                                                A NOTARY PUBLIC OF____________

[AFFIX SEAL]                      My Commission expires on____________________

<PAGE>

                             ASSIGNMENT OF MORTGAGE

                                       AND

                ASSIGNMENT OF ASSIGNMENT OF LESSOR'S INTERESTS
                          IN LEASES, RENTS AND PROFITS

               CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC
                                       TO

                WELLS FARGO BANK MINNESOTA, N.A., AS TRUSTEE

                            RECORD AND RETURN TO:

<PAGE>

                                    Exhibit D

                    Form of Seller's In-House Counsel Opinion

<PAGE>

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

              CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.
                                   (Depositor)

                                       and

                 CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC
                                    (Seller)

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

                        MORTGAGE LOAN PURCHASE AGREEMENT

                            Dated as of July 11, 2000

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

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

<PAGE>

                                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.     Representations and Warranties of Depositor..................
Section 9.     Survival of Certain Representations, Warranties and Covenants
Section 10.    Accountant's Letters.........................................
Section 11.    Expenses; Recording Costs....................................
Section 12.    Notices......................................................
Section 13.    Examination of Mortgage Files................................
Section 14.    Successors...................................................
Section 15.    Governing Law................................................
Section 16.    Severability.................................................
Section 17.    Further Assurances...........................................
Section 18.    Counterparts.................................................
Section 19.    Treatment as Security Agreement..............................
Section 20.    Recordation of Agreement.....................................

Schedule I     Schedule of Transaction Terms
Schedule II    Mortgage Loan Schedule

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      Form of Assignment of Mortgage(s) and Assignment of Assignment
               of Lessor's Interests in Leases, Rents and Profits
Exhibit D      Form of Seller's In-House Counsel Opinion

<PAGE>

                        MORTGAGE LOAN PURCHASE AGREEMENT

            This Mortgage Loan Purchase Agreement (this "Agreement"), dated as
of July 11, 2000, is made by and between CREDIT SUISSE FIRST BOSTON MORTGAGE
CAPITAL LLC, a Delaware limited liability company ("Seller") and CREDIT SUISSE
FIRST BOSTON MORTGAGE SECURITIES CORP., a Delaware corporation (the
"Depositor").

                                    RECITALS

            I.    Capitalized terms used herein without definition have the
meanings ascribed to them in the Schedule of Transaction Terms attached hereto
as Schedule I, which is incorporated herein by this reference, or, if not
defined therein, in the Pooling and Servicing Agreement.

            II.   On the Closing Date, and on the terms set forth herein, Seller
has agreed to sell to Depositor and Depositor has agreed to purchase from Seller
the Mortgage Loans identified on the schedule (the "Mortgage Loan Schedule")
annexed hereto as Schedule II. Depositor intends to deposit the Mortgage Loans
and other assets into 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 of the Mortgage Loans listed in the Mortgage Loan Schedule to Wells
Fargo Bank Minnesota, 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 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 shall take place at the offices of Cadwalader,
Wickersham & Taft, 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 payable in accordance with instructions
      previously provided to Depositor by Seller. The Mortgage Loan Purchase
      Price (as defined herein) shall be paid by Depositor to Seller or at its
      direction by wire transfer in immediately available funds to an account
      designated by Seller on or prior to the Closing Date. The "Mortgage Loan
      Purchase Price" paid by Depositor shall be equal to [____%] of the
      aggregate outstanding principal balance of the Mortgage Loans, after
      giving effect to any scheduled monthly payments due on or prior to the
      Cut-off Date, plus accrued interest at the weighted average Mortgage Rate
      from the Cut-off Date to but not including the Closing Date.

            (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 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 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
      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 each of the Mortgage
Loans identified on the Mortgage Loan Schedule and all property of Seller
described in Section 19 of this Agreement. On or prior to the Closing Date, each
Mortgage File shall be delivered by Seller to the Trustee. Each Mortgage File
shall contain the following documents:

            (a) the original Mortgage 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
      Mortgage Note, bearing, or accompanied by, all prior and intervening
      endorsements or assignments thereof showing a complete chain of
      endorsement or assignment from the Originator of the related Mortgage Loan
      to Seller, and further endorsed (at the direction of Depositor given
      pursuant to this Agreement) by Seller, on its face or by allonge attached
      thereto, without recourse, to the order of the Trustee in the following
      form: "Pay to the order of Wells Fargo Bank Minnesota, N.A., as trustee
      for the registered Holders of Credit Suisse First Boston Mortgage
      Securities Corp. Commercial Mortgage Pass-Through Certificates, Series
      2000-C1, without recourse, representation or warranty, express or
      implied;"

            (b) a duplicate original Mortgage (or a certified copy thereof from
      the applicable recording office) and originals (or certified copies from
      the applicable recording office) of any intervening assignments thereof
      showing a complete chain of assignment from the Originator of the related
      Mortgage Loan to Seller, in each case with evidence of recording indicated
      thereon;

            (c)   an original  (or a true and  complete  copy if the  original
      has been sent by the  Seller for  recordation)  Assignment  of  Mortgage
      substantially in the form of Exhibit C hereto,  in recordable form, from
      Seller  to  Wells  Fargo  Bank  Minnesota,  N.A.,  as  trustee  for  the
      registered  Holders of Credit  Suisse First Boston  Mortgage  Securities
      Corp. Commercial Mortgage Pass-Through Certificates, Series 2000-C1;

            (d)   an  original  Assignment  of  Leases  (if  such  item  is  a
      document separate from the Mortgage), in recordable form;

            (e) an original (or a true and complete copy if the original has
      been sent by the Seller for recordation) of any related assignment of
      Assignment of Leases (if such item is a document separate from the
      Mortgage) substantially in the form of Exhibit C hereto and the originals
      or copies of any intervening assignments thereof showing a complete chain
      of assignment from the Originator of the related Mortgage Loan to Seller,
      in each case with evidence of recording thereon;

            (f) an original or a 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 showing a
      complete chain of assignment from the Originator of the related Mortgage
      Loan to Seller;

            (g)   an original  assignment  of any related  Security  Agreement
      (if such item is a document  separate from the Mortgage),  in recordable
      form,  executed by Seller in favor of Wells Fargo Bank Minnesota,  N.A.,
      as trustee for the  registered  Holders of Credit  Suisse  First  Boston
      Mortgage    Securities   Corp.    Commercial    Mortgage    Pass-Through
      Certificates, Series 2000-C1;

            (h) originals or true and complete copies of all assumption,
      modification, written assurance and substitution agreements, with evidence
      of recording thereon, where appropriate, in those instances where the
      terms or provisions of the related Mortgage or Mortgage Note or any
      related security document have been modified or the related Mortgage Loan
      has been assumed;

            (i) the original lender's title insurance policy or a copy thereof
      effective as of the date of the recordation of the related Mortgage Loan,
      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, a written binding commitment or interim binder, dated as of
      the date the related Mortgage Loan was funded;

            (j) the original or a true and complete copy of any guaranty of the
      obligations of the Mortgagor under the related Mortgage Loan and the
      originals or copies of any intervening assignments thereof showing a
      complete chain of assignment from the Originator of the related Mortgage
      Loan to Seller, in each case with evidence of recording thereon;

            (k)   all UCC Financing Statements and continuation  statements or
      copies thereof filed with respect to the Mortgage Loans;

            (l) the original or a true and complete copy of the power of
      attorney (with evidence of recording thereon) granted by the Mortgagor if
      the Mortgage, Mortgage Note or other document or instrument referred to
      above was not signed by the Mortgagor;

            (m) any intercreditor agreement relating to any debt of a Borrower
      secured by the related Mortgaged Property other than the related Mortgage
      Loan;

            (n) if any related Lock-Box Agreement or Cash Collateral Agreement
      is separate from the Mortgage or Loan Agreement, a copy thereof; with
      respect to the Cash Collateral Accounts and Lock-Box Accounts, if any, a
      copy of the UCC-1 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 (and UCC-2 or UCC-3
      financing statements assigning such security interest to the Trustee on
      behalf of the Certificateholders);

            (o)   any Loan Agreement;

            (p)   [reserved];

            (q)   any environmental insurance policies;

            (r)   [reserved];

            (s) letters of credit, if any, relating to the Additional Collateral
      Loans, including with respect to Loan Nos. 20, 21 and 22, within 120 days
      of the Closing Date, the original letter of credit provided by the
      borrower, fully assigned to the Trustee;

            (t)   the related intercreditor agreement, if any;

            (u) the applicable participation documents, including (i) the
      Amended and Restated Participation and Intercreditor Agreement for Loan
      No. 8 on the Mortgage Loan Schedule (the "L'Enfant Loan"), dated June 11,
      2000, by and between the Depositor and The Chase Manhattan Bank, as
      trustee for Credit Suisse First Boston Mortgage Securities Corp.,
      Commercial Pass Through Certificates, Series 1999-C1 as successor to
      Credit Suisse First Boston Mortgage Securities Corp., and (ii) the
      Co-Lender Agreement relating to the L'Enfant Loan, dated November 11,
      1998, by and between The Chase Manhattan Bank, as trustee for Credit
      Suisse First Boston Mortgage Securities Corp., Commercial Pass Through
      Certificates, Series 1998 C-2 as successor to Credit Suisse First Boston
      Mortgage Securities Corp. and the Seller; and

            (v)   any  additional  documents  required  to  be  added  to  the
      Mortgage File pursuant to this Agreement.

            With respect to the L'Enfant Loan and the 1211 Avenue of the
Americas Loan, document delivery requirements (other than those specified in
clause (u) above) will be met by the delivery of copies of any mortgage loan
documents required to be delivered under this agreement.

            Notwithstanding the foregoing, in the event that, in connection with
any Mortgage Loan (other than the L'Enfant Loan or the 1211 Avenue of the
Americas Loan, Seller cannot deliver an original recorded counterpart of any of
the documents required to be delivered pursuant to clauses (b), (d), (f), (h),
(k) (with respect to UCC financing statements filed other than in accordance
with the transfer contemplated by this Agreement) and (l) above with evidence of
recording or filing thereon concurrently with the execution and delivery hereof,
solely because of a delay caused by the public recording office where such
document or instrument has been delivered for recordation, Seller 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 to
be a true and complete duplicate original or copy of the original thereof
submitted for recording or filing.

            Notwithstanding the foregoing, in the event that Seller cannot
deliver to the Trustee any UCC-2 or UCC-3 assignment with the filing information
of the UCC-1 financing statement being assigned, solely because of a delay
caused by the public filing office where such UCC-1 financing statement has been
delivered for filing, Seller shall deliver or cause to be delivered to the
Trustee a photocopy of such UCC-2 or UCC-3 assignment with the filing
information left blank. Seller, promptly upon receipt of the applicable filing
information of the UCC-1 financing statement being so assigned, shall deliver to
the Trustee the original UCC-2 or UCC-3 assignment with all appropriate filing
information set forth thereon.

            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 documents prepared by Seller
or any of its affiliates solely for internal uses, shall immediately vest in
Depositor and shall be forwarded by Seller to the Trustee by overnight mail for
next-day delivery and retained and maintained, in trust, by the Trustee at the
will of Depositor, in such custodial capacity only. 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 of Seller's receipt thereof to the Servicer via wire
transfer for deposit by the Servicer into the Collection Account.

            Section 4.  Depositor's  Conditions  to Closing.  The  obligations
of Depositor  under this Agreement  shall be subject to the  satisfaction,  on
the Closing Date, of the following conditions:

            (a) Each of the obligations of 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
      shall be true and correct in all material respects as of the Closing Date;
      and no event shall have occurred with respect to 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
      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 Depositor and Seller, duly executed by all signatories other
      than Depositor, as required pursuant to the respective terms thereof:

                  (i)   the Mortgage  Files,  which shall have been  delivered
      to and held by the Trustee on behalf of Seller;

                  (ii)  the Mortgage Loan Schedule;

                  (iii) an officer's certificate of Seller, dated as of the
      Closing Date, with certified copies of the charter, by-laws, and a
      certificate of good standing dated as of a recent date of Seller;

                  (iv) an opinion of Seller's in-house counsel, dated the
      Closing Date, in substantially the same form as Exhibit D attached hereto.

            Such opinion may express its reliance as to factual matters on,
among other things specified in such opinion, the representations and warranties
made herein, and on certificates or other documents furnished by officers of
Seller.

            In rendering the opinions expressed above, such counsel may limit
such opinions to matters governed by the Limited Liability Company Act of the
State of Delaware and the laws of the State of New York and the United States
and shall not be required to express any opinion with respect to the
registration or qualification of the Certificates under any applicable state or
federal securities laws.

                  Such counsel shall state that, although such counsel has not
specifically considered the possible applicability to Seller of any other laws,
regulations, judgments, orders or decrees, no facts have been disclosed to such
counsel that cause such counsel to conclude that any other consent, approval or
action is required;

                  (v) an opinion of Cadwalader, Wickersham & Taft, special
      counsel to Seller, dated the Closing Date, substantially to the effect of
      the following (with such changes and modifications as Depositor may
      approve):

                  Assuming the due authorization, execution and delivery of this
                  Agreement by Seller, this Agreement constitutes a valid and
                  binding agreement of Seller, enforceable against Seller in
                  accordance with its terms, except to the extent that
                  enforcement hereof may be limited by (x) bankruptcy,
                  insolvency, reorganization, moratorium or other similar laws
                  now or hereafter in effect and (y) general principles of
                  equity (regardless of whether enforceability is considered in
                  a proceeding at law or in equity).

            Such opinion may express its reliance as to factual matters on,
among other things specified in such opinion, the representations and warranties
made by, and on certificates or other documents furnished by officers of,
Seller.

            In rendering the opinions expressed above, such counsel may limit
such opinions to matters governed by the laws of the State of New York and the
United States to the extent specifically referred to.

                  (vi) 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.

            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 Seller 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 and such
            other documents required to evidence fulfillment of the conditions
            set forth in this Agreement as Seller or its counsel may reasonably
            request.

            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, validly existing and 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)Neither the execution and delivery by Seller of this
      Agreement, nor the compliance by Seller with the provisions hereof, nor
      the consummation by Seller of transactions contemplated by this Agreement
      will (I) conflict with or result in a breach of, or constitute a default
      or result in the acceleration of any obligations under, the certificate of
      formation or operating agreement of Seller or, after giving effect to the
      consents or the taking of the actions contemplated by clause (II) of this
      subparagraph (ii), any of the provisions of any law, governmental rule,
      regulation, judgment, decree or order binding on Seller or its properties
      or any of the provisions of any material indenture or mortgage or any
      other material contract or instrument to which Seller is a party or by
      which it or any of its properties is bound or result in the creation or
      imposition of any lien, charge or encumbrance upon any of its property
      pursuant to the terms of any such indenture, mortgage, contract or other
      instrument (other than pursuant to this Agreement) or (II) require the
      consent of or notice to, or any filing with, any person, entity or
      governmental body, which has not been obtained or made by Seller, 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 adverse effect
      on any transactions relating to the sale of the Mortgage Loans by Seller.

                 (iii) The execution and delivery by Seller of this Agreement,
      and the consummation of transactions contemplated by this Agreement on the
      terms set forth herein, have been duly authorized by all necessary limited
      liability company action on the part of Seller and are within the limited
      liability company power of Seller, and this Agreement has been duly
      executed and delivered by Seller and constitutes a legal, valid and
      binding instrument, enforceable against Seller in accordance with its
      terms, subject to applicable bankruptcy, reorganization, insolvency,
      moratorium and other laws of general applicability relating to or
      affecting the enforcement of creditors' rights 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).

                 (iv)No consent, approval, authorization or order of,
      registration or filing with, or notice to any federal, state or local
      governmental authority or court that has not been obtained, made or given
      is required in connection with the execution, delivery and performance of
      this Agreement by Seller.

                 (v) No litigation is pending or, threatened against the Seller
      which would materially and adversely affect the validity of the Mortgage
      Loans, or the ability of the Seller to carry out any transactions relating
      to the sale of the Mortgage Loans by Seller.

                 (vi)Except as set forth on Schedule V hereto, the
      representations and warranties contained in Exhibit A-1 and Exhibit A-2
      hereto are true and correct in all material respects as of the Closing
      Date.

            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, subject to Section 14 of this Agreement,
notwithstanding any restrictive or qualified endorsement on the mortgage 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
any initial transferee of the Mortgage Loans from Depositor including, without
limitation, the Trustee for the benefit of the Holders of the Certificates.

            Upon discovery of any Defect (as defined herein) in a Mortgage File
related to a Mortgage Loan, Depositor or its assignee shall promptly notify
Seller in writing of such Defect and request that Seller cure such Defect within
90 days from the date Seller was notified of such Defect; provided, however,
that if such Defect would cause such Mortgage Loan to be other than a "qualified
mortgage" under Section 860G(a)(3) of the Code, then such cure shall be within
90 days of discovery of such Defect. A document in the Mortgage File shall be
deemed to have a "Defect" if (a) any document required to be included in the
Mortgage File is not in the possession of the Trustee, within the time required
to be delivered pursuant to this Agreement or (b) such document has not been
properly executed or is otherwise defective on its face; provided, however, that
a document shall not be deemed to have a Defect if such Defect is caused by the
failure by Depositor to execute such document after having been directed by
Seller to execute such document. If Seller does not correct or cure such Defect
within such period, Seller shall purchase such Mortgage Loan from the Trust Fund
at the Purchase Price pursuant to Section 2.03 of the Pooling and Servicing
Agreement.

            Within 90 days of the receipt of written notice by Seller of a
breach (a "Breach") of any of the representations, warranties or covenants of
Seller with respect to the Mortgage Loans set forth in Exhibit A to this
Agreement (or, if any such Breach would cause the Mortgage Loan to be other than
a "qualified mortgage" under Section 860G(a)(3) of the Code, within 90 days of
discovery of the Breach) which, in either case, materially and adversely affects
either (i) the interests of Depositor or the Certificateholders in the related
Mortgage Loan or (ii) the value of the related Mortgage Loan, Seller shall cure
such Breach and, if Seller does not correct or cure such Breach within such
period, or if such Breach cannot be so cured, then Seller shall purchase the
affected Mortgage Loan at the Purchase Price pursuant to Section 2.03 of the
Pooling and Servicing Agreement. If Seller is required to repurchase any
Mortgage Loan that is part of a Mortgage Group (as defined herein), Seller shall
also be required to repurchase the remaining Mortgage Loans in such Mortgage
Group. 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.

            The Purchase Price for any repurchased Mortgage Loan shall be
payable to 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 Depositor or its assignee, and
Depositor or its assignee, upon receipt of such funds, shall promptly release
the related Mortgage File or cause it to be released, to Seller and shall
execute and deliver such instruments of transfer or assignment, in each case
without recourse, as shall be necessary to vest in Seller title to any Mortgage
Loan released pursuant hereto. The Depositor or the Servicer, as applicable,
shall deliver to Seller an officer's certificate setting forth the calculation
of the Purchase Price.

            Section 8.  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 or 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 9. 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 11 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 10. Accountant's Letters. On or before the Closing Date,
PriceWaterhouseCoopers LLP will have reviewed the characteristics of the
Mortgage Loans described in (a) the Mortgage Loan Schedule attached hereto and
set forth as an exhibit to the Pooling and Servicing Agreement and (b) the
computer disk prepared by Seller and provided to Depositor and will compare
those characteristics to, and ensure their agreement with (i) the description of
the Mortgage Loans contained in the Prospectus Supplement and the Offering
Circular, respectively; (ii) original documentation and files of Seller
maintained with respect to each Mortgage Loan; and (iii) if applicable,
information with respect to such Mortgage Loans contained in the report on Form
8-K to be filed by Depositor with the Commission in connection with the offering
of the Certificates. Seller will cooperate with Depositor and
PriceWaterhouseCoopers LLP in making available all information and taking all
steps reasonably necessary to permit such accountants to complete the review set
forth in this Section 10 and to deliver the letters required of them under the
Underwriting Agreement and the Certificate Purchase Agreement.

            Section 11. Expenses; Recording Costs. Seller agrees to pay to
Depositor or its designee all recording and filing fees incurred in connection
with the recording or filing of the documents listed in Section 3 of this
Agreement.

            Section 12. Notices. All communications hereunder will be in
writing, and, (a) if sent to Depositor, will be mailed, delivered or telecopied
and confirmed to it at Credit Suisse First Boston Mortgage Securities Corp.,
Eleven Madison Avenue, 5th Floor, New York, New York 10010, Attention: Allan J.
Baum, Telecopy No.: (212) 325-8162; and (b) if sent to Seller, will be mailed,
delivered or telecopied to it at Credit Suisse First Boston Mortgage Capital
LLC, Eleven Madison Avenue, New York, New York 10010, Attention: President,
Telecopy No.: (212) 325-8160.

            Section 13. 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 14. Successors. This Agreement shall inure to the benefit of
and shall be binding upon Seller and Depositor and their respective successors
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 (a) the indemnities
of Seller contained in that certain Indemnification Agreement dated July 27,
2000 among Seller, Depositor and the Underwriters, subject to all limitations
therein contained, shall also be for the benefit of the officers and directors
of Depositor, the Underwriters and the Initial Purchaser and any person or
persons who control Depositor, the Underwriters and the Initial Purchaser within
the meaning of Section 15 of the Securities Act or Section 20 of the 1934 Act,
and (b) the rights of Depositor pursuant to this Agreement, subject to all
limitations herein contained, including those set forth in Section 9 of this
Agreement, may be assigned to the Trustee 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. No owner of a
Certificate issued pursuant to the Pooling and Servicing Agreement shall be
deemed a successor because of such ownership.

            Section 15. 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.

            Section 16. 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 17. Further Assurances. Depositor and Seller agree to
execute and deliver such instruments and take such actions as the other parties
may, from time to time, reasonably request in order to effectuate the purpose
and to carry out the terms of this Agreement.

            Section 18. 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 19. 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, 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 Mortgage Notes,
      Mortgages and title, hazard and primary mortgage insurance policies
      identified on the Mortgage Loan Schedule, including all 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 (i) and (ii) above payable after the Cut-off Date;

            (c) the possession by Depositor or its assignee of the Mortgage
      Notes, the Mortgages 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 9-305 and 9-115
      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. Seller, Depositor or their assignee at the direction of
      Seller 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.

            Section 20. 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 the date first
above written.

                                    CREDIT SUISSE FIRST BOSTON MORTGAGE
                                    CAPITAL LLC,
                                       as Seller

                                    By:_______________________________________
                                       Name:
                                       Title:

                                    CREDIT SUISSE FIRST BOSTON MORTGAGE
                                    SECURITIES CORP.,
                                       as Depositor

                                    By:_______________________________________
                                      Name:
                                      Title:____________________________
                                            Vice President

<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 July 11, 2000, between Credit Suisse First Boston Mortgage Capital LLC (" 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, the Underwriting Agreement or
the Certificate Purchase Agreement, as the case may be.

            "Borrower" means the borrower under the Mortgage Loan.

            "Certificate Purchase Agreement" means the Certificate Purchase
Agreement, dated July 27, 2000, between Depositor and the Initial Purchasers.

            "Certificates"  means each class of the Credit Suisse First Boston
Mortgage  Securities  Corp.  Commercial  Mortgage  Pass-Through  Certificates,
Series 2000-C1.

            "Closing Date" means August 4, 2000.

            "Code" means the Internal Revenue Code of 1986, as amended.

            "Cut-off Date" means, July 11, 2000.

            "Environmental Report" means the environmental audit report with
respect to each Mortgaged Property delivered to Seller in connection with the
related Mortgage, if any.

            "Initial  Purchasers" means Credit Suisse First Boston Corporation
and Morgan Stanley & Co. Incorporated.

            "Investment Officer" means any employee of Seller designated by
Seller as an "investment officer" or whose title includes the words "investment
officer."

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

            "Mortgage Loan Pool" means the pool of Mortgage Loans, which are the
primary assets of the Trust Fund.

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

            "Mortgage Loans" means the mortgage loans to be sold to Depositor
pursuant to the Agreement, specifically identified in the Mortgage Loan Schedule
to the Agreement.

            "Offered Certificates" means the Class A-1, Class A-2, Class B,
Class C and Class D Certificates.

            "Offering Circular" means the confidential offering circular dated
July 27, 2000, describing certain classes of the Certificates.

            "Originator" means any institution which originated a Mortgage Loan
for a related Borrower.

            "Pooling and Servicing Agreement" means the Pooling and Servicing
Agreement creating the Trust Fund and the interests therein, dated as of July
11, 2000, among the Servicer, the Special Servicer, Depositor and the Trustee,
including the Mortgage Loan Schedule annexed thereto.

            "Prospectus" means the Prospectus, dated October 12, 1999.

            "Prospectus Supplement" means the Prospectus Supplement, dated July
27, 2000, relating to the Offered Certificates.

            "Underwriters"  means Credit Suisse First Boston  Corporation  and
Morgan Stanley & Co. Incorporated.

            "Underwriting Agreement" means the Underwriting Agreement, dated
July 27, 2000, between Depositor and the Underwriters.

<PAGE>

                                                                 SCHEDULE II-A

                             MORTGAGE LOAN SCHEDULE

<PAGE>

                                                                 SCHEDULE II-B

             MORTGAGE LOAN SCHEDULE (LOANS SOLD BY NCCB TO CSFB)

<PAGE>

                                                                  SCHEDULE III

                 MORTGAGE LOANS CONSTITUTING MORTGAGE GROUPS

<PAGE>

                                                                   SCHEDULE IV

                         MORTGAGE LOANS WITH LOST NOTES

<PAGE>

                                                                    SCHEDULE V

                             EXCEPTIONS TO SELLER'S

                         REPRESENTATIONS AND WARRANTIES

      Reference is made to the Representations and Warranties contained in
          Exhibit A corresponding to the roman numerals listed below:

                    [CURRENTLY PROVIDED AS SEPARATE DOCUMENT]

<PAGE>

                                                                     EXHIBIT A-1

                   REPRESENTATIONS AND WARRANTIES OF SELLER
                 REGARDING THE MORTGAGE LOANS ON SCHEDULE A-1

            The Seller represents and warrants with respect to each Mortgage
Loan, as applicable, that as of the date hereof:

               (i) Immediately prior to the sale, transfer and assignment to the
Depositor, no Mortgage Note or Mortgage was subject to any assignment (other
than to the Seller), participation or pledge, and the Seller had good and
marketable title to, and was the sole owner of, the related Mortgage Loan;

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

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

               (iv) Each related Mortgage Note, Mortgage, assignment of leases
(if any) and other agreement executed in connection with such Mortgage Loan is
the legal, valid and binding obligation of the related 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 generally, 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 defense, counterclaim, or right of
rescission available to the related borrower with respect to such Mortgage Note,
Mortgage, assignment of leases and other agreements;

               (v) Each related assignment of leases creates a valid first
priority collateral or first priority assignment of, or a valid first priority
security interest in, certain rights under the related lease, subject only to a
license granted to the related borrower to exercise certain rights and to
perform certain obligations of the lessor under such lease, including the right
to operate the related Mortgaged Property; no person other than the related
borrower owns any interest in any payments due under such lease that is superior
to or of equal priority with the lender's interest therein;

               (vi) Each related assignment of Mortgage from the Seller to the
Depositor and related assignment of the assignment of leases, if any, or
assignment of any other agreement executed in connection with such Mortgage Loan
from the Seller to the Depositor constitutes the legal, valid and binding
assignment from the Seller to the Depositor, except as such enforcement may be
limited by bankruptcy, insolvency, reorganization, liquidation, receivership,
moratorium or other laws relating to or affecting creditors' rights generally,
or by general principles of equity (regardless of whether such enforceability is
considered in a proceeding in equity or at law);

               (vii) Since origination, and except as set forth in the related
mortgage file, such Mortgage Loan has not been modified, altered, satisfied,
canceled, subordinated or rescinded and, each related Mortgaged Property has not
been released from the lien of the related Mortgage in any manner which
materially interferes with the security intended to be provided by such
Mortgage;

               (viii) Each related Mortgage is a valid and enforceable first
lien on the related Mortgaged Property (subject to Permitted Encumbrances (as
defined below)), 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 in all places necessary to perfect a valid security interest in the
personal property necessary to operate the Mortgaged Property; any security
agreement, chattel mortgage or equivalent document related to and delivered in
connection with the Mortgage Loan establishes and creates a valid and
enforceable lien on property described therein (except as enforceability may be
limited by bankruptcy or other laws affecting creditor's rights generally or by
the application of general principles of equity).

               (ix) The Seller has not taken any action that would cause the
representations and warranties made by each related borrower in the Mortgage
Loan not to be true;

               (x) The Seller has no knowledge that the material representations
and warranties made by each related borrower in such Mortgage Loan are not true
in any material respect;

               (xi) The lien of each related Mortgage is a first priority lien
on the fee or leasehold interest of the related borrower in the original
principal amount of such Mortgage Loan or allocated loan amount of the portions
of the Mortgaged Property covered thereby (as set forth in the related Mortgage)
after all advances of principal and is insured by an ALTA lender's title
insurance policy (or a binding commitment therefor), or its equivalent as
adopted in the applicable jurisdiction, insuring the Seller and its successors
and assigns as to such lien, subject only to (a) the lien of current real
property taxes, ground rents, water charges, sewer rents and assessments not yet
due and payable, (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) set forth
in such policy, none of which, individually or in the aggregate, materially
interferes with the current general use of the Mortgaged Property or materially
interferes with the security intended to be provided by such Mortgage or with
the related borrower's ability to pay its obligations when they become due or
the value of the Mortgaged Property (items (a), (b) and (c) collectively,
"Permitted Encumbrances"); the premium for such policy was paid in full; such
policy was issued by a title insurance company licensed to issue policies in the
state in which the related Mortgaged Property is located and is assignable 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 the Mortgage Loan Purchase 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;

               (xii) The proceeds of such Mortgage Loan have been fully
disbursed and there is no requirement for future advances thereunder and the
Seller covenants that it will not make any future advances under the Mortgage
Loan to the related borrower;

               (xiii) As of the later of the date of origination of such
Mortgage Loan or the most recent inspection of the related Mortgaged Property by
the Seller, as applicable, and to the knowledge of Seller as of the Closing
Date, each related Mortgaged Property is free of any material damage that would
affect materially and adversely the value of such Mortgaged Property as security
for the Mortgage Loan or reserves have been established to remediate such damage
and, as of the closing date for each Mortgage Loan and, to the Seller's
knowledge, as of the date hereof, there is no proceeding pending for the total
or partial condemnation of such Mortgaged Property that would have a material
adverse effect on the value of the Mortgaged Property;

               (xiv) The Seller has inspected or caused to be inspected each
related Mortgaged Property within the past twelve months, or the originator of
the Mortgage Loan inspected or caused to be inspected each related Mortgage
Property within three months of origination of the Mortgage Loan;

               (xv) No Mortgage Loan has a shared appreciation feature, any
other contingent interest feature or a negative amortization feature other than
the ARD Loans which may have negative amortization from and after the
Anticipated Repayment Date;

               (xvi)    Each  Mortgage  Loan is a whole loan and  contains  no
equity participation by Seller;

               (xvii) The Mortgage Rate (exclusive of any default interest, late
charges, or prepayment premiums) of such Mortgage Loan complied as of the date
of origination with, or is exempt from, applicable state or federal laws,
regulations and other requirements pertaining to usury; and any and all other
requirements of any federal, state or local laws, including, without limitation,
truth-in-lending, real estate settlement procedures, equal credit opportunity or
disclosure laws, applicable to such Mortgage Loan have been complied with as of
the date of origination of such Mortgage Loan;

               (xviii) Neither the Seller nor to the Seller's knowledge, any
originator, committed any fraudulent acts during the origination process of any
Mortgage Loan and the origination, servicing and collection of each Mortgage
Loan is in all respects legal, proper and prudent in accordance with customary
industry standards, and no other person has been granted or conveyed the right
to service the Mortgage Loans or receive any consideration in connection
therewith, except as provided in the Pooling and Servicing Agreement;

               (xix) All taxes and governmental assessments that became due and
owing prior to the Closing Date with respect to each related Mortgaged Property
have been paid or an escrow of funds in an amount sufficient to cover such
payments has been established;

               (xx) All escrow deposits and payments required pursuant to each
Mortgage Loan are in the possession, or under the control, of the Seller or its
agent and there are no deficiencies in connection therewith and all such escrows
and deposits have been conveyed by the Seller to the Depositor and identified as
such with appropriate detail;

               (xxi) Each related Mortgaged Property is insured by a fire and
extended perils insurance policy, issued by an insurer meeting the requirements
of the Pooling and Servicing Agreement, in an amount not less than the
replacement cost (with no deduction for physical depreciation) and the amount
necessary to avoid the operation of any co-insurance provisions with respect to
the related Mortgaged Property; each related Mortgaged Property is also covered
by business interruption insurance which covers a period of not less than 12
months and comprehensive general liability insurance in amounts generally
required by institutional 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; such insurance names the
lender under the Mortgage Loan and its successors and assigns as a named or
additional insured; each related Mortgage Loan obligates the related borrower to
maintain all such insurance and, at such borrower's failure to do so, authorizes
the lender to maintain such insurance at the borrower's cost and expense and to
seek reimbursement therefor from such borrower;

               (xxii) There is no monetary default, breach, violation or event
of acceleration existing under the related Mortgage Loan. To the Seller's
knowledge, there is no (a) material non-monetary default, breach, violation or
event of acceleration existing under the related Mortgage Loan or (b) event
(other than payments due but not yet delinquent) which, with the passage of time
or with notice and the expiration of any grace or cure period, would and does
constitute a default, breach, violation or event of acceleration;

               (xxiii) No Mortgage Loan has been more than 30 days delinquent
since origination and as of the Cut-off Date no Mortgage Loan is 30 or more days
delinquent;

               (xxiv) Each related Mortgage contains provisions so as to render
the rights and remedies of the holder thereof adequate for the realization
against the Mortgaged Property of the benefits of the security, including
realization by judicial or, if applicable, non-judicial foreclosure, and there
is no exemption available to the borrower which would interfere with such right
to foreclose (except as may be imposed by bankruptcy, insolvency, moratorium,
redemption or other similar laws affecting creditors' rights generally, or by
general principles of equity) and to the Seller's knowledge, no borrower is a
debtor in a state or federal bankruptcy or insolvency proceeding;

               (xxv) At origination, each borrower represented and warranted
that except as set forth in certain environmental reports and to its knowledge
it has not used, caused or permitted to exist and will not use, cause or permit
to exist on the related Mortgaged Property any hazardous materials in any manner
which violates federal, state or local laws, ordinances, regulations, orders,
directives or policies governing the use, storage, treatment, transportation,
manufacture, refinement, handling, production or disposal of hazardous materials
or other environmental laws; the related borrower or an affiliate or an
affiliate thereof agreed to indemnify, defend and hold the mortgagee and its
successors and assigns harmless from and against losses, liabilities, damages,
injuries, penalties, fines, expenses, and claims of any kind whatsoever
(including attorneys' fees and costs) paid, incurred or suffered by, or asserted
against, any such party resulting from a breach of the foregoing
representations, warranties or covenants given by the borrower in connection
with such Mortgage Loan. A Phase I environmental report and with respect to
certain Mortgage Loans, a Phase II environmental report, was conducted by a
reputable environmental engineer in connection with such Mortgage Loan, which
report did not indicate any material non-compliance with applicable
environmental laws or material existence of hazardous materials or, if any
material non-compliance or material existence of hazardous materials was
indicated in any such report, funds sufficient to cure such findings have been
escrowed by the related borrower and held by the related mortgagee or an
operations and maintenance program has been required to be instituted by the
related borrower. To the best of the Seller's knowledge, in reliance on such
environmental reports and except as set forth in such environmental reports,
each Mortgaged Property is in material compliance with all applicable federal,
state and local environmental laws, and to the best of the Seller's knowledge,
no notice of violation of such laws has been issued by any governmental agency
or authority, except, in all cases, as indicated in certain 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;

               (xxvi) (1) Each Mortgage Loan contains provisions for the
acceleration of the payment of the unpaid principal balance of such Mortgage
Loan if, without the consent of the holder of the Mortgage (and the mortgage
requires the mortgagor to pay all fees and expenses associated with obtaining
such consent), the related Mortgaged Property is directly or indirectly
transferred or sold, and (2) except with respect to transfers of certain
interests in the related Borrower to persons already holding interests in the
Borrower, their family members and other estate related transfers that satisfy
certain criteria specified in the related Mortgage (which criteria is consistent
with the practices of prudent commercial mortgage lenders), each Mortgage Loan
with a Stated Principal Balance of over $20,000,000 also contains the provisions
for the acceleration of the payment of the unpaid principal balance of such
Mortgage Loan if, without the consent of the holder of the Mortgage, (and the
mortgage requires the mortgagor to pay all fees and expenses associated with
obtaining such consent) a controlling interest in the related Borrower is
directly or indirectly transferred or sold;

               (xxvii) All improvements included in any MAI appraisals are
within the boundaries of the related Mortgaged Property, except for de minimis
encroachments onto adjoining parcels for which the Seller has obtained title
insurance against losses arising therefrom and no improvements on adjoining
parcels encroach onto the related Mortgaged Property except for de minimis
encroachments;

               (xxviii) The mortgage loan schedule which is attached as an
exhibit to the Pooling and Servicing Agreement is complete and accurate in all
material respects as of the dates of the information set forth therein;

               (xxix) With respect to any Mortgage Loan where all or a material
portion of the estate of the related borrower therein is a leasehold estate,
based upon the terms of the ground lease and any estoppel received from the
ground lessor, the Seller represents and warrants that:

                  (A) The ground lease or a memorandum regarding such ground
      lease has been duly recorded. The ground lease permits the interest of the
      lessee to be encumbered by the related Mortgage and does not restrict the
      use of the related Mortgaged Property by such lessee, its successors or
      assigns in a manner that would adversely affect the security provided by
      the related Mortgage. To the Seller's best knowledge, there has been no
      material change in the terms of the ground lease since its recordation,
      except by any written instruments which are included in the related
      mortgage file;

                  (B) The lessor under such ground lease has agreed in a writing
      included in the related mortgage file that the ground lease may not be
      amended, modified, canceled or terminated without the prior written
      consent of the lender and that any such action without such consent is not
      binding on the lender, its successors or assigns;

                  (C) The ground lease has an original term (or an original term
      plus one or more optional renewal terms, which, under all circumstances,
      may be exercised, and will be enforceable, by the lender) that extends not
      less than 20 years beyond the stated maturity of the related Mortgage
      Loan;

                  (D) Based on the title insurance policy (or binding commitment
      therefor) obtained by the Seller, the ground lease is not subject to any
      liens or encumbrances superior to, or of equal priority with, the
      Mortgage, subject to Permitted Encumbrances and liens that encumber the
      ground lessor's fee interest;

                  (E) The ground lease is assignable to the lender under the
      leasehold estate and its assigns without the consent of the lessor
      thereunder;

                  (F) As of the Closing Date, the ground lease is in full force
      and effect, the Seller has no actual knowledge that any default beyond
      applicable notice and grace periods has occurred, and there is no existing
      condition which, but for the passage of time or giving of notice, would
      result in a default under the terms of the ground lease;

                  (G) The ground lease or ancillary agreement between the lessor
      and the lessee requires the lessor to give notice of any default by the
      lessee to the lender;

                  (H) A lender is permitted a reasonable opportunity (including,
      where necessary, sufficient time to gain possession of the interest of the
      lessee under the ground lease through legal proceedings, or to take other
      action so long as the lender is proceeding diligently) to cure any default
      under the ground lease which is curable after the receipt of notice of any
      default before the lessor may terminate the ground lease. All rights of
      the lender under the ground lease and the related Mortgage (insofar as it
      relates to the ground lease) may be exercised by or on behalf of the
      lender;

                  (I) The ground lease does not impose any restrictions on
      subletting that would be viewed as commercially unreasonable by an
      institutional investor. The lessor is not permitted to disturb the
      possession, interest or quiet enjoyment of any subtenant of the lessee in
      the relevant portion of the Mortgaged Property subject to the ground lease
      for any reason, or in any manner, which would adversely affect the
      security provided by the related Mortgage;

                  (J) Under the terms of the ground lease and the related
      Mortgage, any related insurance proceeds or condemnation award (other than
      in respect of a total or substantially total loss or taking) will be
      applied either to the repair or restoration of all or part of the related
      Mortgaged Property, with the lender or a trustee appointed by it having
      the right to hold and disburse such proceeds as repair or restoration
      progresses, or to the payment of the outstanding principal balance of the
      Mortgage Loan, together with any accrued interest, except that in the case
      of condemnation awards, the ground lessor may be entitled to a portion of
      such award;

                  (K) Under the terms of the ground lease and the related
      Mortgage, any related insurance proceeds, or condemnation award in respect
      of a total or substantially total loss or taking of the related Mortgaged
      Property will be applied first to the payment of the outstanding principal
      balance of the Mortgage Loan, together with any accrued interest (except
      as provided by applicable law or in cases where a different allocation
      would not be viewed as commercially unreasonable by any institutional
      investor, taking into account the relative duration of the ground lease
      and the related Mortgage and the ratio of the market value of the related
      Mortgaged Property to the outstanding principal balance of such Mortgage
      Loan). Until the principal balance and accrued interest are paid in full,
      neither the lessee nor the lessor under the ground lease will have an
      option to terminate or modify the ground lease without the prior written
      consent of the lender as a result of any casualty or partial condemnation,
      except to provide for an abatement of the rent; and

                  (L) Provided that the lender cures any defaults which are
      susceptible to being cured, the lessor has agreed to enter into a new
      lease upon termination of the ground lease for any reason, including
      rejection of the ground lease in a bankruptcy proceeding;

               (xxx) With respect to Mortgage Loans that are
cross-collateralized, all other loans that are cross-collateralized by such
Mortgage Loans are included in the Trust Fund;

               (xxxi) Neither Seller nor any affiliate thereof has any
obligation to make any capital contribution to any borrower under a Mortgage
Loan, other than contributions made on or prior to the Closing Date;

               (xxxii) (1) The Mortgage Loan is directly secured by a Mortgage
on a commercial property or multifamily residential property, and (2) the fair
market value of such real property, as evidenced by an MAI appraisal 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 (a) 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 (b) at the Closing Date; provided that the
fair market value of the real property interest must first be reduced by (A) the
amount of any lien on the real property interest that is senior to the Mortgage
Loan (unless such senior lien also secures a Mortgage Loan, in which event the
computation described in (a) and (b) shall be made on an aggregated basis) and
(B) a proportionate amount of any lien that is in parity with the Mortgage Loan
(unless such other lien secures a Mortgage Loan that is cross-collateralized
with such Mortgage Loan, in which event the computation described in (a) and (b)
shall be made on an aggregate basis);

               (xxxiii) There are no subordinate mortgages encumbering the
related Mortgaged Property, nor are there any preferred equity interests held by
the Seller or any mezzanine debt related to such Mortgaged Property, except as
set forth in the Prospectus Supplement, this Exhibit A or in the related
Mortgage Loan Purchase Agreement;

               (xxxiv) The loan documents executed in connection with each
Mortgage Loan require that the related borrower be a single-purpose entity (for
this purpose, "single-purpose entity" shall mean an entity, other than an
individual, that is formed or organized solely for the purpose of owning and
operating one or more Mortgaged Properties, is prohibited from engaging in any
business unrelated to such property and the related Mortgage Loan, does not have
any assets other than those related to its interest in the related Mortgaged
Property or its financing, or any indebtedness other than as permitted under the
related Mortgage Loan);

               (xxxv) Each Mortgage Loan prohibits the related borrower from
mortgaging or otherwise encumbering the Mortgaged Property and, except in
connection with trade debt and equipment financings in the ordinary course of
borrower's business, from carrying any additional indebtedness, except, in each
case, liens contested in accordance with the terms of the Mortgage Loans;

               (xxxvi) Each borrower covenants in the Mortgage Loan documents
that it shall remain in material compliance with all material licenses, permits
and other legal requirements necessary and required to conduct its business;

               (xxxvii) Each Mortgaged Property is located on or adjacent to a
dedicated road, or has access to an irrevocable easement permitting ingress and
egress, 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 is a separate tax parcel;

               (xxxviii) Based solely on a flood zone certification or a survey
of the related Mortgaged Property, if any portion of the improvements on the
Mortgaged Property is located in an area identified by the Federal Emergency
Management Agency, with respect to certain Mortgage Loans, or the Secretary of
Housing and Urban Development with respect to other Mortgage Loans, as having
special flood hazards, the terms of the Mortgage Loan require the borrower to
maintain flood insurance or at such borrowers failure to do so, authorizes the
Lender to maintain such insurance at the cost and expense of the borrower;

               (xxxix) To the knowledge of the Seller, with respect to each
Mortgage which is a deed of trust, a trustee, duly qualified under applicable
law to serve as such, currently so serves and is named in the deed of trust or
has been substituted in accordance with applicable law, and except in connection
with a trustee's sale after a default by the related borrower, no fees are
payable to such trustee;

               (xl)     RESERVED.

               (xli)    RESERVED.

               (xlii) Except as disclosed in the Prospectus Supplement, to the
knowledge of the Seller as of the Closing Date, there was no pending action,
suit or proceeding, arbitration or governmental investigation against any
borrower or Mortgaged Property, an adverse outcome of which would materially and
adversely affect such borrower's ability to perform under the related Mortgage
Loan;

               (xliii) No advance of funds has been made by the Seller to the
related borrower (other than mezzanine debt and the acquisition of preferred
equity interests by the Preferred Interest Holder, as disclosed in the
Prospectus Supplement) and no funds have been received from any person other
than, or on behalf of, the related borrower for, or on account of, payments due
on the Mortgage Loan;

               (xliv) To the extent required under applicable law, as of the
Cut-off Date or as of the date that such entity held the Mortgage Note, each
holder of the Mortgage Note was authorized to transact and do business in the
jurisdiction in which each related Mortgaged Property is located, or failure to
be so authorized did not materially affect the ability of such holder to
transact business in the jurisdiction in which each related Mortgaged Property
is located while such entity was the holder;

               (xlv)    All   collateral  for  the  Mortgage  Loans  is  being
transferred as part of the Mortgage Loans;

               (xlvi) Except as disclosed in the Prospectus Supplement, in
connection with Crossed Loans and Multi-Property Loans, no Mortgage Loan
requires the lender to release any portion of the Mortgaged Property from the
lien of the related Mortgage except upon (a) payment in full or defeasance of
the related Mortgage Loan, (b) releases of unimproved out-parcels or (c)
releases of portions of the Mortgaged Property which will not have a material
adverse effect on the value of the collateral for the related Mortgage Loan;

               (xlvii) Any insurance proceeds in respect of a casualty loss or
taking will be applied either to (a) the repair or restoration of all or part of
the related Mortgaged Property, with, in the case of all Mortgage Loans other
than Credit Lease Loans and with respect to all casualty losses or takings in
excess of a specified percentage of the related loan amount, the lender (or a
trustee appointed by it) having the right to hold and disburse such proceeds as
the repair or restoration progresses or (b) to the payment of the outstanding
principal balance of such Mortgage Loan together with any accrued interest
thereon;

               (xlviii) Each Form UCC-1 financing statement, if any, filed with
respect to personal property constituting a part of the related Mortgaged
Property, together with each Form UCC-2 or UCC-3 assignment, if any, of such
financing statement to the Seller and each Form UCC-2 or UCC-3 assignment, if
any, of such financing statement executed by the Seller in blank which the
Trustee or its designee is authorized to complete (and but for the insertion of
the name of the assignee and any related filing information which is not yet
available to the Seller) is in suitable form for filing in the filing office in
which such financing statement was filed;

               (xlix) To the Seller's knowledge, (a) all material commercial
leases affecting the Mortgaged Properties securing the Mortgage Loans are in
full force and effect and (b) there exists no default under any such material
commercial lease either by the lessee thereunder or by the related borrower that
could give rise to the termination of such lease;

               (l) The improvements located on or forming part of each Mortgaged
Property comply with applicable zoning laws and ordinances, or constitute a
legal non-conforming use or structure or, if any such improvement does not so
comply, such non-compliance does not materially and adversely affect the value
of the related Mortgaged Property. With respect to properties with a Stated
Principal Balance of over $10,000,000, if the related Mortgaged Property does
not so comply, to the extent the Seller is aware of such non-compliance, it has
required the related Borrower to obtain law and ordinance insurance coverage in
amounts customarily required by prudent commercial mortgage lenders;

               (li) Each Mortgage Loan constitutes a "qualified mortgage" within
the meaning of Section 860G(a)(3) of the Code (but without regard to the rule in
Treasury Regulation (as defined herein) 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);

               (lii) With respect to any Mortgage Loan that pursuant to the
mortgage documents can be defeased, (i) the Mortgage Loan cannot be defeased
within two years of the Closing Date, (ii) the borrower can pledge only United
States government securities in an amount sufficient to make all scheduled
payments under the Mortgage Loan when due, (iii) the borrower is required to
provide independent certified public accountants certification that the
collateral is sufficient to make such payments, (iv) the loan may be required to
be assumed by a single-purpose entity designated by the holder of the Mortgage
Loan, and (v) 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;

               (liii) The Mortgage Loan Documents for each Mortgage Loan provide
that the related borrower thereunder shall be liable to the Seller for any
losses incurred by the Seller due to (i) the misapplication or misappropriation
of rents, insurance proceeds or condemnation awards, (ii) any willful act of
material waste, (iii) any breach of the environmental covenants contained in the
related Mortgage Loan Documents, (iv) fraud, and (v) any act resulting in the
Mortgaged Property becoming an asset in a voluntary bankruptcy or insolvency
proceeding;

               (liv) If such Mortgage Loan is an ARD Loan, it commenced
amortizing on its initial scheduled Due Date and provides that: (i) its Mortgage
Rate will increase by no more than two percentage points in connection with the
passage of its Anticipated Repayment Date and so long as the Mortgage Loan is an
asset of the Trust Fund; (ii) its Anticipated Repayment Date is not less than
seven years following the origination of such Mortgage Loan; (iii) no later than
the related Anticipated Repayment Date, if it has not previously done so, the
related borrower is required to enter into a "lockbox agreement" whereby all
revenue from the related Mortgaged Property shall be deposited directly into a
designated account controlled by the Servicer; and (iv) any cash flow from the
related Mortgaged Property that is applied to amortize such Mortgage Loan
following its Anticipated Repayment Date shall, to the extent such net cash flow
is in excess of the Monthly Payment payable therefrom, be net of budgeted and
discretionary (servicer approved) capital expenditures.

               (lv) Except as disclosed in the Prospectus Supplement, not more
than 5% of the aggregate initial principal amount of the Mortgage Loans have the
same Mortgagor or, to the Seller's best knowledge, have mortgagors that are
affiliates of each other;

               (lvi) The Participation and Intercreditor Agreement (the
"L'Enfant Participation Agreement") relating to Loan No. 8 on the Mortgage Loan
Schedule (the L'Enfant Loan) represents the legal, valid and binding obligations
of the Seller, enforceable against the Seller, as the Other B Note Participant
(as defined in the L'Enfant Participation Agreement), enforceable against the
Seller in accordance with its terms, except as such enforcement may be limited
by bankruptcy, insolvency, reorganization of other similar laws affecting the
enforcement of creditors rights generally, and by general principles of equity
(regardless of whether such enforceability is considered in a proceeding in
equity of at law).

               (lvii) The Intercreditor Agreement (the "1211 Avenue of the
Americas Intercreditor Agreement") relating to Loan No. 3 on the Mortgage Loan
Schedule (the 1211 Avenue of the Americas Loan) represents the legal, valid and
binding obligations of the Seller, enforceable against the Seller, as the Other
Note Holder (as defined in the 1211 Avenue of the Americas Intercreditor
Agreement), enforceable against the Seller in accordance with its terms, except
as such enforcement may be limited by bankruptcy, insolvency, reorganization of
other similar laws affecting the enforcement of creditors rights generally, and
by general principles of equity (regardless of whether such enforceability is
considered in a proceeding in equity of at law).

<PAGE>

                                                                     EXHIBIT A-2

                        REPRESENTATIONS AND WARRANTIES
                REGARDING THE MORTGAGE LOANS ON SCHEDULE II-B

            Seller represents and warrants with respect to each Mortgage Loan,
as applicable, that, except as set forth on EXHIBIT _ annexed hereto and made a
part hereof, the following statements are true and correct in all material
respects, as of the date hereof:

               (i) Immediately prior to the sale, transfer and assignment to the
Purchaser, no Mortgage Note or Mortgage was subject to any assignment (other
than to Seller), participation or pledge, and Seller had good and marketable
title to, and was the sole owner of, the related Mortgage Loan;

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

               (iii) 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;

               (iv) Each related Mortgage Note, Mortgage, assignment of leases
(if any) and other agreement executed in connection with such Mortgage Loan is
the legal, valid and binding obligation of the related 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 generally, 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 defense, counterclaim, or right of
rescission available to the related borrower with respect to such Mortgage Note,
Mortgage, assignment of leases and other agreements;

               (v) Each related assignment of leases creates a valid first
priority assignment of, or a valid first priority security interest in, certain
rights under the related lease, subject only to a license granted to the related
borrower to exercise certain rights and to perform certain obligations of the
lessor under such lease, including the right to operate the related Mortgaged
Property; no person other than the related borrower owns any interest in any
payments due under such lease that is superior to or of equal priority with the
lender's interest therein;

               (vi) Each related assignment of Mortgage from Seller to the
Purchaser and related assignment of the assignment of leases, if any, or
assignment of any other agreement executed in connection with such Mortgage Loan
from Seller to the Purchaser constitutes the legal, valid and binding assignment
from Seller to the Purchaser, except as such enforcement may be limited by
bankruptcy, insolvency, reorganization, liquidation, receivership, moratorium or
other laws relating to or affecting creditors' rights generally, or by general
principles of equity (regardless of whether such enforceability is considered in
a proceeding in equity or at law);

               (vii) Since origination, and except as set forth in the related
mortgage file, such Mortgage Loan has not been modified, altered, satisfied,
canceled, subordinated or rescinded and, each related Mortgaged Property has not
been released from the lien of the related Mortgage in any manner which
materially interferes with the security intended to be provided by such
Mortgage;

               (viii) Each related Mortgage is a valid and enforceable first
lien on the related Mortgaged Property (subject to Permitted Encumbrances (as
defined below)), 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 in all places necessary to perfect a valid security interest in the
personal property necessary to operate the Mortgaged Property; any security
agreement, chattel mortgage or equivalent document related to and delivered in
connection with the Mortgage Loan establishes and creates a valid and
enforceable lien on property described therein (except as enforceability may be
limited by bankruptcy or other laws affecting creditor's rights generally or by
the application of general principles of equity).

               (ix)     Seller has not taken any action  that would  cause the
representations  and warranties made by each related  borrower in the Mortgage
Loan not to be true;

               (x)      Seller   has   no   knowledge    that   the   material
representations  and warranties made by each related borrower in such Mortgage
Loan are not true in any material respect;

               (xi) The lien of each related Mortgage is a first priority lien
on the fee or leasehold interest of the related borrower in the original
principal amount of such Mortgage Loan or allocated loan amount of the portions
of the Mortgaged Property covered thereby (as set forth in the related Mortgage)
after all advances of principal and is insured by an ALTA lender's title
insurance policy (or a binding commitment therefor), or its equivalent as
adopted in the applicable jurisdiction, insuring 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 due and
payable, (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) set forth in
such policy, none of which, individually or in the aggregate, materially
interferes with the current general use of the Mortgaged Property or materially
interferes with the security intended to be provided by such Mortgage or with
the related borrower's ability to pay its obligations when they become due or
the value of the Mortgaged Property (items (a), (b) and (c) collectively,
"Permitted Encumbrances"); the premium for such policy was paid in full; such
policy was issued by a title insurance company licensed to issue policies in the
state in which the related Mortgaged Property is located and is assignable to
the Purchaser 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 the Mortgage Loan Purchase Agreement; no claims
have been made under such policy and 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;

               (xii) The proceeds of such Mortgage Loan have been fully
disbursed and there is no requirement for future advances thereunder and Seller
covenants that it will not make any future advances under the Mortgage Loan to
the related borrower;

              (xiii) As of the later of the date of origination of such Mortgage
Loan or the most recent inspection of the related Mortgaged Property by Seller,
as applicable, and to the knowledge of Seller as of the Closing Date, each
related Mortgaged Property is free of any material damage that would affect
materially and adversely the value of such Mortgaged Property as security for
the Mortgage Loan or reserves have been established to remediate such damage
and, as of the closing date for each Mortgage Loan and, to 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 value of the Mortgaged Property;

               (xiv) Seller has inspected or caused to be inspected each related
Mortgaged Property within the past twelve months, or the originator of the
Mortgage Loan inspected or caused to be inspected each related Mortgage Property
within three months of origination of the Mortgage Loan;

               (xv)     No Mortgage  Loan has a shared  appreciation  feature,
any other contingent interest feature or a negative amortization feature;

               (xvi)    Each  Mortgage  Loan is a whole loan and  contains  no
equity participation by Seller;

              (xvii) The Mortgage Rate (exclusive of any default interest, late
charges, or prepayment premiums) of such Mortgage Loan complied as of the date
of origination with, or is exempt from, applicable state or federal laws,
regulations and other requirements pertaining to usury; and any and all other
requirements of any federal, state or local laws, including, without limitation,
truth-in-lending, real estate settlement procedures, equal credit opportunity or
disclosure laws, applicable to such Mortgage Loan have been complied with as of
the date of origination of such Mortgage Loan;

            (xviii) Neither Seller nor to Seller's knowledge, any originator,
committed any fraudulent acts during the origination process of any Mortgage
Loan and the origination, servicing and collection of each Mortgage Loan is in
all respects legal, proper and prudent in accordance with customary industry
standards, and no other person has been granted or conveyed the right to service
the Mortgage Loans or receive any consideration in connection therewith, except
as provided in the Pooling and Servicing Agreement;

               (xix) All taxes and governmental assessments that became due and
owing prior to the Closing Date with respect to each related Mortgaged Property
have been paid or an escrow of funds in an amount sufficient to cover such
payments has been established;

               (xx) All escrow deposits and payments required pursuant to each
Mortgage Loan are in the possession, or under the control, of Seller or its
agent and there are no deficiencies in connection therewith and all such escrows
and deposits have been conveyed by Seller to the Purchaser and identified as
such with appropriate detail;

               (xxi) Each related Mortgaged Property is insured by a fire and
extended perils insurance policy, issued by an insurer meeting the requirements
of the Pooling and Servicing Agreement, in an amount not less than the
replacement cost (with no deduction for physical depreciation) and the amount
necessary to avoid the operation of any co-insurance provisions with respect to
the related Mortgaged Property; each related Mortgaged Property is also covered
by business interruption insurance which covers a period of not less than 12
months and comprehensive general liability insurance in amounts generally
required by institutional 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; such insurance names the
lender under the Mortgage Loan and its successors and assigns as a named or
additional insured; each related Mortgage Loan obligates the related borrower to
maintain all such insurance and, at such borrower's failure to do so, authorizes
the lender to maintain such insurance at the borrower's cost and expense and to
seek reimbursement therefor from such borrower;

              (xxii) There is no monetary default, breach, violation or event of
acceleration existing under the related Mortgage Loan. To Seller's knowledge,
there is no (a) material non-monetary default, breach, violation or event of
acceleration existing under the related Mortgage Loan or (b) event (other than
payments due but not yet delinquent) which, with the passage of time or with
notice and the expiration of any grace or cure period, would and does constitute
a material default, breach, violation or event of acceleration;

            (xxiii) No Mortgage Loan has been more than 30 days delinquent since
origination and as of the Cut-off Date no Mortgage Loan is 30 or more days
delinquent;

             (xxiv) Each related Mortgage contains provisions so as to render
the rights and remedies of the holder thereof adequate for the realization
against the Mortgaged Property of the benefits of the security, including
realization by judicial or, if applicable, non-judicial foreclosure, and there
is no exemption available to the borrower which would interfere with such right
to foreclose (except as may be imposed by bankruptcy, insolvency, moratorium,
redemption or other similar laws affecting creditors' rights generally, or by
general principles of equity) and to Seller's knowledge, no borrower is a debtor
in a state or federal bankruptcy or insolvency proceeding;

              (xxv) At origination, each borrower represented and warranted that
except as set forth in certain environmental reports and to its knowledge it has
not used, caused or permitted to exist and will not use, cause or permit to
exist on the related Mortgaged Property any hazardous materials in any manner
which violates federal, state or local laws, ordinances, regulations, orders,
directives or policies governing the use, storage, treatment, transportation,
manufacture, refinement, handling, production or disposal of hazardous materials
or other environmental laws; the related borrower or an affiliate or an
affiliate thereof agreed to indemnify, defend and hold the mortgagee and its
successors and assigns harmless from and against losses, liabilities, damages,
injuries, penalties, fines, expenses, and claims of any kind whatsoever
(including attorneys' fees and costs) paid, incurred or suffered by, or asserted
against, any such party resulting from a breach of the foregoing
representations, warranties or covenants given by the borrower in connection
with such Mortgage Loan. A Phase I environmental report and with respect to
certain Mortgage Loans, a Phase II environmental report, was conducted by a
reputable environmental engineer in connection with such Mortgage Loan, which
report did not indicate any material non-compliance with applicable
environmental laws or material existence of hazardous materials or, if any
material non-compliance or material existence of hazardous materials was
indicated in any such report, funds sufficient to cure such findings have been
escrowed by the related borrower and held by the related mortgagee or an
operations and maintenance program has been required to be instituted by the
related borrower. To the best of Seller's knowledge, in reliance on such
environmental reports and except as set forth in such environmental reports,
each Mortgaged Property is in material compliance with all applicable federal,
state and local environmental laws, and to the best of 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 certain environmental reports
or other documents previously provided to the Rating Agencies; and 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;

             (xxvi) (1) Each Mortgage Loan contains provisions for the
acceleration of the payment of the unpaid principal balance of such Mortgage
Loan if, without the consent of the holder of the Mortgage, the related
Mortgaged Property is directly or indirectly transferred or sold (except for
transfers of stock of the related Borrower in connection with the assignment of
a proprietary lease for an apartment unit by a tenant-shareholder of the related
Borrower to other persons who by virtue of such transfers become
tenant-shareholders), and (2) except with respect to transfers of certain
interests in the related Borrower to persons already holding interests in the
Borrower, their family members and other estate related transfers that satisfy
certain criteria specified in the related Mortgage (which criteria is consistent
with the practices of prudent commercial mortgage lenders), each Mortgage Loan
with a Stated Principal Balance of over $20,000,000, also contains provisions
for the acceleration of the payment of the unpaid principal balance of such
Mortgage Loan if, without the consent of the holder of the Mortgage, a
controlling interest in the related Borrower is directly or indirectly
transferred or sold;

            (xxvii) All improvements included in any MAI appraisals are within
the boundaries of the related Mortgaged Property, except for de minimis
encroachments onto adjoining parcels for which Seller has obtained affirmative
title insurance with respect to such encroachments in customary form and no
improvements on adjoining parcels encroach onto the related Mortgaged Property
except for de minimis encroachments;

                (xxviii) The mortgage loan schedule which is attached as an
exhibit to the Pooling and Servicing Agreement is complete and accurate in all
material respects as of the dates of the information set forth therein;

             (xxix) With respect to any Mortgage Loan where all or a material
portion of the estate of the related borrower therein is a leasehold estate,
based upon the terms of the ground lease and any estoppel received from the
ground lessor, Seller represents and warrants that:

                  (A) The ground lease or a memorandum regarding such ground
      lease has been duly recorded. The ground lease permits the interest of the
      lessee to be encumbered by the related Mortgage and does not restrict the
      use of the related Mortgaged Property by such lessee, its successors or
      assigns in a manner that would adversely affect the security provided by
      the related Mortgage. To Seller's best knowledge, there has been no
      material change in the terms of the ground lease since its recordation,
      except by any written instruments which are included in the related
      mortgage file;

                  (B) The lessor under such ground lease has agreed in a writing
      included in the related mortgage file that the ground lease may not be
      amended, modified, canceled or terminated without the prior written
      consent of the lender and that any such action without such consent is not
      binding on the lender, its successors or assigns;

                  (C) The ground lease has an original term (or an original term
      plus one or more optional renewal terms, which, under all circumstances,
      may be exercised, and will be enforceable, by the lender) that extends not
      less than 20 years beyond the stated maturity of the related Mortgage
      Loan;

                  (D) Based on the title insurance policy (or binding commitment
      therefor) obtained by Seller, the ground lease is not subject to any liens
      or encumbrances superior to, or of equal priority with, the Mortgage,
      subject to Permitted Encumbrances and liens that encumber the ground
      lessor's fee interest;

                  (E) The ground lease is assignable to the lender under the
      leasehold estate and its assigns without the consent of the lessor
      thereunder;

                  (F) As of the Closing Date, the ground lease is in full force
      and effect, Seller has no actual knowledge of any default beyond
      applicable notice and grace periods has occurred, and there is no existing
      condition which, but for the passage of time or giving of notice, would
      result in a default under the terms of the ground lease;

                  (G) The ground lease or ancillary agreement between the lessor
      and the lessee requires the lessor to give notice of any default by the
      lessee to the lender;

                  (H) A lender is permitted a reasonable opportunity (including,
      where necessary, sufficient time to gain possession of the interest of the
      lessee under the ground lease through legal proceedings, or to take other
      action so long as the lender is proceeding diligently) to cure any default
      under the ground lease which is curable after the receipt of notice of any
      default before the lessor may terminate the ground lease. All rights of
      the lender under the ground lease and the related Mortgage (insofar as it
      relates to the ground lease) may be exercised by or on behalf of the
      lender;

                  (I) The ground lease does not impose any restrictions on
      subletting that would be viewed as commercially unreasonable by an
      institutional investor. The lessor is not permitted to disturb the
      possession, interest or quiet enjoyment of any subtenant of the lessee in
      the relevant portion of the Mortgaged Property subject to the ground lease
      for any reason, or in any manner, which would adversely affect the
      security provided by the related Mortgage;

                  (J) Under the terms of the ground lease and the related
      Mortgage, any related insurance proceeds or condemnation award (other than
      in respect of a total or substantially total loss or taking) will be
      applied either to the repair or restoration of all or part of the related
      Mortgaged Property, with the lender or a trustee appointed by it having
      the right to hold and disburse such proceeds as repair or restoration
      progresses, or to the payment of the outstanding principal balance of the
      Mortgage Loan, together with any accrued interest, except that in the case
      of condemnation awards, the ground lessor may be entitled to a portion of
      such award;

                  (K) Under the terms of the ground lease and the related
      Mortgage, any related insurance proceeds, or condemnation award in respect
      of a total or substantially total loss or taking of the related Mortgaged
      Property will be applied first to the payment of the outstanding principal
      balance of the Mortgage Loan, together with any accrued interest (except
      as provided by applicable law or in cases where a different allocation
      would not be viewed as commercially unreasonable by institutional
      investors, taking into account the relative duration of the ground lease
      and the related Mortgage and the ratio of the market value of the related
      Mortgaged Property to the outstanding principal balance of such Mortgage
      Loan). Until the principal balance and accrued interest are paid in full,
      neither the lessee nor the lessor under the ground lease will have an
      option to terminate or modify the ground lease without the prior written
      consent of the lender as a result of any casualty or partial condemnation,
      except to provide for an abatement of the rent; and

                  (L) Provided that the lender cures any defaults which are
      susceptible to being cured, the lessor has agreed to enter into a new
      lease upon termination of the ground lease for any reason, including
      rejection of the ground lease in a bankruptcy proceeding;

               (xxx) With respect to Mortgage Loans that are
cross-collateralized, all other loans that are cross-collateralized by such
Mortgage Loans are included in the Trust Fund;

               (xxxi) Neither Seller nor any affiliate thereof has any
obligation to make any capital contribution to any borrower under a Mortgage
Loan, other than contributions made on or prior to the Closing Date;

               (xxxii) (1) The Mortgage Loan is directly secured by a Mortgage
on a commercial property or multifamily residential property, and (2) the fair
market value of such real property, as evidenced by an MAI appraisal 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 (a) 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 (b) at the Closing Date; provided that the
fair market value of the real property interest must first be reduced by (A) the
amount of any lien on the real property interest that is senior to the Mortgage
Loan (unless such senior lien also secures a Mortgage Loan, in which event the
computation described in (a) and (b) shall be made on an aggregated basis) and
(B) a proportionate amount of any lien that is in parity with the Mortgage Loan
(unless such other lien secures a Mortgage Loan that is cross-collateralized
with such Mortgage Loan, in which event the computation described in (a) and (b)
shall be made on an aggregate basis);

               (xxxiii) There are no subordinate mortgages encumbering the
related Mortgaged Property, nor are there any preferred equity interests held by
Seller or any mezzanine debt related to such Mortgaged Property, except as set
forth in the Prospectus Supplement and the Mortgage Loan Schedule;

               (xxxiv)  Intentionally omitted;

               (xxxv) Each Mortgage Loan (i) prohibits the related borrower from
mortgaging or otherwise encumbering the Mortgaged Property without the consent
of Seller (which consent, in certain instances, Seller may not unreasonably
withhold) and (ii) prohibits the related borrower from incurring any unsecured
indebtedness in excess of an amount (which amount would not be viewed as
commercially unreasonable) stated in the related Mortgage Loan Documents without
the consent of Seller.

               (xxxvi) Each borrower covenants in the Mortgage Loan documents
that it shall remain in material compliance with all material licenses, permits
and other legal requirements necessary and required to conduct its business;

               (xxxvii) Each Mortgaged Property is located on or adjacent to a
dedicated road, or has access to an irrevocable easement permitting ingress and
egress, 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 is a separate tax parcel;

               (xxxviii) Based solely on a flood zone certification or a survey
of the related Mortgaged Property, if any portion of the improvements on the
Mortgaged Property is located in an area identified by the Federal Emergency
Management Agency, with respect to certain Mortgage Loans, or the Secretary of
Housing and Urban Development with respect to other Mortgage Loans, as having
special flood hazards, the terms of the Mortgage Loan require the borrower to
maintain flood insurance or at such borrowers failure to do so, authorizes the
Lender to maintain such insurance at the cost and expense of the borrower;

               (xxxix) To the knowledge of Seller, with respect to each Mortgage
which is a deed of trust, a trustee, duly qualified under applicable law to
serve as such, currently so serves and is named in the deed of trust or has been
substituted in accordance with applicable law, and except in connection with a
trustee's sale after a default by the related borrower, no fees are payable to
such trustee;

               (xl)     Intentionally Omitted:

               (xli)    Intentionally Omitted:

              (xlii) Except as disclosed in the Prospectus Supplement, to the
knowledge of Seller as of the Closing Date, there was no pending action, suit or
proceeding, arbitration or governmental investigation against any borrower or
Mortgaged Property, an adverse outcome of which would materially and adversely
affect such borrower's ability to perform under the related Mortgage Loan;

               (xliii) Except with respect to subordinate debt disclosed in the
Mortgage Loan Schedule, no advance of funds has been made by Seller to the
related borrower and no funds have been received from any person other than, or
on behalf of, the related borrower for, or on account of, payments due on the
Mortgage Loan;

               (xliv) To the extent required under applicable law, as of the
Cut-off Date, the holder of the related Mortgage Loan was authorized to transact
and do business in the jurisdiction in which each related Mortgaged Property is
located, or failure to be so authorized does not materially affect the ability
of such holder to transact business in the jurisdiction in which each related
Mortgaged Property is located;

               (xlv)  All   collateral   for  the  Mortgage   Loans  is  being
transferred as part of the Mortgage Loans;

               (xlvi) Except as disclosed in the Prospectus Supplement, in
connection with Crossed Loans, no Mortgage Loan requires the lender to release
any portion of the Mortgaged Property from the lien of the related Mortgage
except upon (a) payment in full or defeasance of the related Mortgage Loan, (b)
releases of unimproved out-parcels or (c) releases of portions of the Mortgaged
Property which will not have a material adverse effect on the value of the
collateral for the related Mortgage Loan;

               (xlvii) Any insurance proceeds in respect of a casualty loss or
taking will be applied either to (a) the repair or restoration of all or part of
the related Mortgaged Property, with, in the case of all Mortgage Loans, and
with respect to all casualty losses or takings in excess of a specified
percentage of the related loan amount, the lender (or a trustee appointed by it)
having the right to hold and disburse such proceeds as the repair or restoration
progresses or (b) to the payment of the outstanding principal balance of such
Mortgage Loan together with any accrued interest thereon;

               (xlviii) Each Form UCC-1 financing statement, if any, filed with
respect to personal property constituting a part of the related Mortgaged
Property, together with each Form UCC-2 or UCC-3 assignment, if any, of such
financing statement to Seller and each Form UCC-2 or UCC-3 assignment, if any,
of such financing statement executed by Seller in blank which the Trustee or its
designee is authorized to complete (and but for the insertion of the name of the
assignee and any related filing information which is not yet available to
Seller) is in suitable form for filing in the filing office in which such
financing statement was filed;

               (xlix) To Seller's knowledge, (a) all material commercial leases
affecting the Mortgaged Properties securing the Mortgage Loans are in full force
and effect and (b) there exists no default under any such material commercial
lease either by the lessee thereunder or by the related borrower that could give
rise to the termination of such lease;

               (l) The improvements located on or forming part of each Mortgaged
Property comply with applicable zoning laws and ordinances, or constitute a
legal non-conforming use or structure or, if any such improvement does not so
comply, such non-compliance does not materially and adversely affect the value
of the related Mortgaged Property. With respect to properties with a Stated
Principal Balance of over $10,000,000, if the related Mortgaged Property does
not so comply, to the extent Seller is aware of such non-compliance, it has
required the related Borrower to obtain law and ordinance insurance coverage in
amounts customarily required by prudent commercial mortgage lenders;

               (li) Each Mortgage Loan constitutes a "qualified mortgage" within
the meaning of Section 860G(a)(3) of the Code (but without regard to the rule in
Treasury Regulation (as defined herein) 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);

               (lii) With respect to any Mortgage Loan that pursuant to the
mortgage documents can be defeased, (i) the Mortgage Loan cannot be defeased
within two years of the Closing Date, (ii) the borrower can pledge only United
States government securities in an amount sufficient to make all scheduled
payments under the Mortgage Loan when due, (iii) the borrower is required to
provide either a certificate or opinion of an independent certified public
accountants that the collateral is sufficient to make such payments, (iv) the
loan may be required to be assumed by a single-purpose entity designated by the
holder of the Mortgage Loan, and (v) the borrower is required to provide an
opinion of counsel be provided that the trustee has a perfected security
interest in such collateral prior to any other claim or interest;

               (liii) With respect to Mortgage Loan Nos. 92, 135 and 145, such
Mortgage Loans are fully recourse to the related Borrowers. Certain of the
Mortgage Loans are non-recourse to the shareholders, officers and/or directors
of the mortgagor, except with respect to damages suffered or incurred by the
holder of the Mortgage relating to or arising out of (i) any claim for damages
against the mortgagor relating to the misapplication of any insurance proceeds
or condemnation awards with respect to the Mortgaged Property, including,
without limitation, any action taken by the shareholder, officer and/or director
of mortgagor on behalf of mortgagor, (ii) any claim relating to any fraud or
misrepresentation by or on behalf of mortgagor, including, without limitation,
any fraud or misrepresentation by the shareholder, officer and/or director of
mortgagor, (iii) any claim relating to a misappropriation of any reserve
accounts, security deposits or rents maintained by mortgagor, including, without
limitation, any misappropriation of any reserve accounts, security deposits or
rents by the shareholder, officer and/or director of mortgagor, (iv) any failure
of mortgagor to comply with the provisions of the related Mortgage governing any
transfer, sale, hypothecation, pledge or further encumbering of the related
Mortgaged Property or any part thereof or (v) any breach by mortgagor of any of
the provisions of the related Mortgage concerning hazardous materials; with
respect to Mortgage Loans No. 34, 35 and 36, the Mortgage Loan Documents for
each Mortgage Loan provide that the related borrower thereunder shall be liable
to the Seller for any losses incurred by the Seller due to (i) the
misapplication or misappropriation of rents, insurance proceeds or condemnation
awards, (ii) any willful act of material waste, (iii) any breach of the
environmental covenants contained in the related Mortgage Loan Documents, (iv)
fraud, and (v) any act resulting in the Mortgaged Property becoming an asset in
a voluntary bankruptcy or insolvency proceeding.

               (liv)    Intentionally Omitted.

               (lv) Except as disclosed in the Prospectus Supplement, not more
than 5% of the aggregate initial principal amount of the Mortgage Loan Pool have
the same Mortgagor or, to Seller's best knowledge, have mortgagors that are
affiliates of each other.

<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 Credit  Suisse First
Boston Mortgage Capital LLC ("CSFBMC");

            2. that CSFBMC 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 CSFBMC, 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  Credit  Suisse  First  Boston  Mortgage
            Capital Corp., under date of _________________  (the "Note");

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

            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 CSFBMC; and

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

                                          CREDIT SUISSE FIRST BOSTON
                                          MORTGAGE CAPITAL LLC

                                          By:

                                             Authorized Signatory

Sworn to before me this

day of August [__], 2000

<PAGE>

                                    EXHIBIT C

                                     FORM OF

                          ASSIGNMENT OF MORTGAGE(S) AND
                 ASSIGNMENT OF ASSIGNMENT OF LESSOR'S INTERESTS
                          IN LEASES, RENTS AND PROFITS

            KNOW ALL MEN BY THESE PRESENTS:

            THAT, as of , 2000, Credit Suisse First Boston Mortgage Capital LLC,
a Delaware limited liability company, whose address is Eleven Madison Avenue,
New York, New York 10010 ("ASSIGNOR") in consideration of ten and 00/100
($10.00) dollars and other good and valuable consideration, paid by Wells Fargo
Bank Minnesota, N.A., as trustee for Credit Suisse First Boston Mortgage
Securities Corp. Commercial Mortgage Pass-Through Certificates, Series 2000-C1,
whose address is 45 Broadway, New York, New York 10001 ("ASSIGNEE"), receipt of
which is acknowledged by ASSIGNOR, hereby sells, assigns, transfers, sets over
and conveys unto the ASSIGNEE certain mortgage(s) and assignments of leases,
rents and profits and other collateral documents as follows:

            See Schedule "A" attached hereto and incorporated herein by this
reference.

            TOGETHER with the note(s), debt(s) and claim(s) secured by said
mortgage(s) and the covenants contained in said mortgage(s), together with all
amendments, supplements and modifications thereto and all liens, financing
statements, guaranties and security interests securing the payment of such
notes, including, without limitation, any other documents recorded in the real
property records of the jurisdiction in which the real property covered by the
mortgage(s) is located with respect to such notes, and any other documents,
agreements, instruments or property relating to such loan(s) and all right,
title, interest, claims, demands, causes of action and judgments securing or
relating to such loan(s); TO HAVE AND TO HOLD the same unto the ASSIGNEE and to
the successors, legal representatives and assigns of the ASSIGNEE forever.

            THIS ASSIGNMENT is made without recourse or representation or
warranty of any kind or nature, express or implied except as expressly set forth
in that certain Mortgage Loan Purchase Agreement, dated as of July 11, 2000
between ASSIGNOR and Credit Suisse First Boston Mortgage Securities Corp.

<PAGE>

            IN WITNESS WHEREOF, the ASSIGNOR has duly executed this Assignment
the __ day of ________ 2000.

IN PRESENCE OF:___

                                       By:____________________________________
                                            Name:
                                            Title:

<PAGE>

STATE OF                )
                        )  ss.:
COUNTY OF               )

            On this day of , 2000, before me the undersigned, a NOTARY PUBLIC OF
, personally appeared , as ______of Credit Suisse First Boston Mortgage Capital
LLC, a Delaware limited liability company, who, I am satisfied, was the maker of
the foregoing instrument and who then stated and acknowledged to me that, as
such officer and maker (1) he was authorized to execute the foregoing instrument
on behalf of said limited liability company and (2) he executed said instrument
as the act and deed of said limited liability company.

            IN TESTIMONY  WHEREOF,  I have hereunto set my hand and affixed my
official       seal       at      my       office       in       the       day
and year last above written.

                                       Signature______________________________
                                       Print Name_____________________________
                                       Residing at____________________________

                                                A NOTARY PUBLIC OF____________

[AFFIX SEAL]                      My Commission expires on____________________

<PAGE>

                             ASSIGNMENT OF MORTGAGE

                                       AND

                ASSIGNMENT OF ASSIGNMENT OF LESSOR'S INTERESTS
                          IN LEASES, RENTS AND PROFITS

               CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC
                                       TO

                WELLS FARGO BANK MINNESOTA, N.A., AS TRUSTEE

                            RECORD AND RETURN TO:

<PAGE>

                                    Exhibit D

                  Form of Seller's In-House Counsel Opinion================================================================================

              CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.
                                   (Depositor)

                                       and

                MORGAN STANLEY DEAN WITTER MORTGAGE CAPITAL INC.
                                    (Seller)

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

                        MORTGAGE LOAN PURCHASE AGREEMENT

                            Dated as of July 11, 2000

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

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

<PAGE>

                                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.     Representations and Warranties of Depositor..................
Section 9.     Survival of Certain Representations, Warranties and Covenants
Section 10.    Accountant's Letters.........................................
Section 11.    Expenses; Recording Costs....................................
Section 12.    Notices......................................................
Section 13.    Examination of Mortgage Files................................
Section 14.    Successors...................................................
Section 15.    Governing Law................................................
Section 16.    Severability.................................................
Section 17.    Further Assurances...........................................
Section 18.    Counterparts.................................................
Section 19.    Treatment as Security Agreement..............................
Section 20.    Recordation of Agreement.....................................

Schedule I     Schedule of Transaction Terms
Schedule II-A  MSDWMC Mortgage Loan Schedule
Schedule II-B  FINOVA Realty Capital Mortgage Loan Schedule
Schedule II-C  FINOVA Commercial Mortgage Loan Owner Trust 1998-1 Mortgage Loan
               Schedule
Schedule II-D  Llama Mortgage Company Mortgage Loan Schedule
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 on MSDWMC Mortgage Loans

Exhibit A      Representations and Warranties of Seller Regarding the MSDWMC
               Mortgage Loans

Exhibit B      Form of Lost Mortgage Note Affidavit

Exhibit C      Form of Assignment of Mortgage(s) and Assignment of Assignment of
               Lessor's Interests in Leases, Rents and Profits
Exhibit D      Form of Seller's In-House Counsel Opinion

<PAGE>

                        MORTGAGE LOAN PURCHASE AGREEMENT

       This Mortgage Loan Purchase Agreement (this "Agreement"), dated as
of July 11, 2000, is made by and between MORGAN STANLEY DEAN WITTER MORTGAGE
CAPITAL INC., a New York corporation ("Seller") and CREDIT SUISSE FIRST BOSTON
MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor").

                                    RECITALS

            I.    Capitalized terms used herein without definition have the
meanings ascribed to them in the Schedule of Transaction Terms attached hereto
as Schedule I, which is incorporated herein by this reference, or, if not
defined therein, in the Pooling and Servicing Agreement.

            II.   On the Closing Date, and on the terms set forth herein, Seller
has agreed to sell to Depositor and Depositor has agreed to purchase from Seller
the Mortgage Loans identified on the schedule annexed hereto as Schedule II-A
(the "MSDWMC Mortgage Loans") and the Mortgage Loans identified on the schedules
annexed hereto as Schedule II-B and Schedule II-C (the "FINOVA Mortgage Loans"),
and the Mortgage Loans identified on the schedule annexed hereto as Schedule
II-D (the "Llama Mortgage Loans", and collectively with the MSDWMC Mortgage
Loans and the FINOVA Mortgage Loans, the "Subject Mortgage Loans"). The FINOVA
Mortgage Loans listed on Schedule II-B are those acquired by the Seller pursuant
to the FINOVA Capital Mortgage Loan Purchase Agreement and the FINOVA Mortgage
Loans listed on Schedule II-C are those acquired by the Seller pursuant to the
FINOVA Commercial Mortgage Loan Owner Trust 1998-1 Mortgage Loan Purchase
Agreement. The Llama Mortgage Loans listed on Schedule II-D are those acquired
by the Seller pursuant to the Llama Mortgage Company Mortgage Loan Purchase
Agreement. Schedules II-A, II-B, II-C and II-D are referred to collectively
herein as the "Mortgage Loan Schedule." Depositor intends to deposit the Subject
Mortgage Loans and other assets into 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 of the Subject Mortgage Loans listed in the Mortgage Loan Schedule to
Wells Fargo Bank Minnesota, N.A., as custodian (in such capacity, the
"Custodian") or as trustee (in such capacity, the "Trustee"), against receipt by
Seller of a trust receipt, pursuant to an arrangement between Seller and the
Custodian.

            Section 2. Closing Date Actions. The sale of the Subject Mortgage
Loans shall take place on the Closing Date, subject to and simultaneously with
the deposit of the Subject Mortgage Loans into the Trust Fund, the issuance of
the Certificates and the sale of (a) the Offered Certificates by Depositor to
the Underwriters pursuant to the Underwriting Agreement and (b) the Private
Certificates by Depositor to the Initial Purchasers pursuant to the Certificate
Purchase Agreement. The closing shall take place at the offices of Cadwalader,
Wickersham & Taft, 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 Subject Mortgage Loans pursuant to this Agreement for the
      Mortgage Loan Purchase Price payable in accordance with instructions
      previously provided to Depositor by Seller. The Mortgage Loan Purchase
      Price (as defined herein) shall be paid by Depositor to Seller or at its
      direction by wire transfer in immediately available funds to an account
      designated by Seller on or prior to the Closing Date. The "Mortgage Loan
      Purchase Price" paid by Depositor shall be an amount determined in
      accordance with the Letter of Understanding dated July [__], 2000 by and
      among Morgan Stanley & Co. Incorporated, Morgan Stanley Dean Witter
      Mortgage Capital Inc., Credit Suisse First Boston Mortgage Capital LLC and
      Credit Suisse First Boston Corporation (the "Letter of Understanding").

            (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
      Subject Mortgage Loans (together with certain other 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 Offered Certificates pursuant to the
      Underwriting Agreement, and Depositor shall sell to the Initial
      Purchasers, and the Initial Purchasers shall purchase from Depositor, the
      Private Certificates pursuant to the Certificate Purchase Agreement.

            (iv) The Underwriters will offer the Offered Certificates for sale
      to the public pursuant to the Prospectus and the Prospectus Supplement and
      the Initial Purchasers will privately place certain classes of the
      Certificates pursuant to the Offering Circular.

            Section 3. Conveyance of Subject 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 Subject Mortgage Loans identified on the Mortgage Loan Schedule and
all property of Seller described in Section 19 of this Agreement, (ii) rights
with respect to the FINOVA Mortgage Loans arising under (x) that certain
mortgage loan purchase agreement, dated as of June 30, 1999 (the "FINOVA Capital
Mortgage Loan Purchase Agreement"), between the Seller and FINOVA Realty
Capital, Inc. ("FINOVA Realty Capital"), other than Articles 2, 4, 5, 6, 7,
Sections 8.5.14, 8.5.41, 8.5.42, and Articles 10, 12 and 14 thereof (such
provisions referred to in this clause, the "Redacted FINOVA Realty Capital
Provisions"), and (y) that certain mortgage loan purchase agreement, dated as of
June 30, 1999 (the "FINOVA Commercial Mortgage Owner Trust 1998-1 Mortgage Loan
Purchase Agreement"), among the Seller, FINOVA Capital Corporation and the
FINOVA Commercial Mortgage Loan Owner Trust 1998-1 (the "FINOVA Owner Trust"),
other than Articles 2, 4, 5, 6, 7, Sections 8.5.14, 8.5.41, 8.5.42, and Articles
10, 12 and 14 thereof (such provisions referred to in this clause, the "Redacted
FINOVA Owner Trust Provisions" and collectively with the Redacted FINOVA Realty
Capital Provisions, the "Redacted FINOVA Provisions") and (iii) rights with
respect to the Llama Mortgage Loans arising under that certain mortgage loan
purchase agreement, dated as of December 17, 1999 (the "Llama Mortgage Loan
Purchase Agreement"), between the Seller and Llama Capital Mortgage Company
Limited Partnership ("Llama Mortgage Company"). The parties acknowledge that
rights and obligations under the Redacted FINOVA Provisions are not being
assigned hereunder and copies of such Redacted FINOVA Provisions have not been
provided to the Depositor for its review.

      On or prior to the Closing Date, each Mortgage File with respect to the
MSDWMC Mortgage Loans shall be delivered by Seller to the Custodian. Each such
Mortgage File shall contain the following documents:

            (a) the original Mortgage Note, or with respect to those MSDWMC
      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 Mortgage Note, bearing, or accompanied by, all prior and
      intervening endorsements or assignments thereof showing a complete chain
      of endorsement or assignment from the Originator of the related Mortgage
      Loan to Seller, and further endorsed (at the direction of Depositor given
      pursuant to this Agreement) by Seller, on its face or by allonge attached
      thereto, without recourse, to the order of the Trustee in the following
      form: "Pay to the order of Wells Fargo Bank Minnesota, N.A., as trustee
      for the registered Holders of Credit Suisse First Boston Mortgage
      Securities Corp. Commercial Mortgage Pass-Through Certificates, Series
      2000-C1, without recourse, representation or warranty, express or
      implied;"

            (b) a duplicate original Mortgage (or a certified copy thereof from
      the applicable recording office) and originals (or certified copies from
      the applicable recording office) of any intervening assignments thereof
      showing a complete chain of assignment from the Originator of the related
      Mortgage Loan to Seller, in each case with evidence of recording indicated
      thereon;

            (c) an original (or a true and complete copy if the original has
      been sent by the Seller for recordation) Assignment of Mortgage
      substantially in the form of Exhibit C hereto, in recordable form, from
      Seller to Wells Fargo Bank Minnesota, N.A., as trustee for the registered
      Holders of Credit Suisse First Boston Mortgage Securities Corp. Commercial
      Mortgage Pass-Through Certificates, Series 2000-C1;

            (d) an original Assignment of Leases (if such item is a document
      separate from the Mortgage), in recordable form;

            (e) an original (or a true and complete copy if the original has
      been sent by the Seller for recordation) of any related assignment of
      Assignment of Leases (if such item is a document separate from the
      Mortgage) substantially in the form of Exhibit C hereto and the originals
      or copies of any intervening assignments thereof showing a complete chain
      of assignment from the Originator of the related Mortgage Loan to Seller,
      in each case with evidence of recording thereon;

            (f) an original or a 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 showing a
      complete chain of assignment from the Originator of the related Mortgage
      Loan to Seller;

            (g) an original assignment of any related Security Agreement (if
      such item is a document separate from the Mortgage), in recordable form,
      executed by Seller in favor of Wells Fargo Bank Minnesota, N.A., as
      trustee for the registered Holders of Credit Suisse First Boston Mortgage
      Securities Corp. Commercial Mortgage Pass-Through Certificates, Series
      2000-C1;

            (h) originals or true and complete copies of all assumption,
      modification, written assurance and substitution agreements, with evidence
      of recording thereon, where appropriate, in those instances where the
      terms or provisions of the related Mortgage or Mortgage Note or any
      related security document have been modified or the related Mortgage Loan
      has been assumed;

            (i) the original lender's title insurance policy or a copy thereof
      effective as of the date of the recordation of the related Mortgage Loan,
      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, a written binding commitment or interim binder, dated as of
      the date the related Mortgage Loan was funded;

            (j) the original or a true and complete copy of any guaranty of the
      obligations of the Mortgagor under the related Mortgage Loan and the
      originals or copies of any intervening assignments thereof showing a
      complete chain of assignment from the Originator of the related Mortgage
      Loan to Seller, in each case with evidence of recording thereon;

            (k) all UCC Financing Statements and continuation statements or
      copies thereof filed with respect to the MSDWMC Mortgage Loans;

            (l) the original or a true and complete copy of the power of
      attorney (with evidence of recording thereon) granted by the Mortgagor if
      the Mortgage, Mortgage Note or other document or instrument referred to
      above was not signed by the Mortgagor;

            (m) any intercreditor agreement relating to any debt of a Borrower
      secured by the related Mortgaged Property other than the related Mortgage
      Loan;

            (n) if any related Lock-Box Agreement or Cash Collateral Agreement
      is separate from the Mortgage or Loan Agreement, a copy thereof; with
      respect to the Cash Collateral Accounts and Lock-Box Accounts, if any, a
      copy of the UCC-1 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 (and UCC-2 or UCC-3
      financing statements assigning such security interest to the Trustee on
      behalf of the Certificateholders);

            (o) any Loan Agreement;

            (p) [Reserved];

            (q) letters of credit, if any, relating to the Additional Collateral
      Loans;

            (r) the applicable participation documents, if any;

            (s) any environmental insurance policies; and

            (t) any additional documents required to be added to the Mortgage
      File pursuant to this Agreement.

            Notwithstanding the foregoing, in the event that, in connection with
any Mortgage Loan, Seller cannot deliver an original recorded counterpart of any
of the documents required to be delivered pursuant to clauses (b), (d), (f),
(h), (k) (with respect to UCC financing statements filed other than in
accordance with the transfer contemplated by this Agreement) and (l) above with
evidence of recording or filing thereon concurrently with the execution and
delivery hereof, solely because of a delay caused by the public recording office
where such document or instrument has been delivered for recordation, Seller
shall deliver, or cause to be delivered, to the Custodian a duplicate original
or true copy of such document certified by the applicable public recording or
filing office to be a true and complete duplicate original or copy of the
original thereof submitted for recording or filing.

            On or prior to the Closing Date, each Mortgage File with respect to
the FINOVA Mortgage Loans and the Llama Mortgage Loans shall be delivered by
Seller to the Custodian. Each such Mortgage File shall contain all documents
required to have been delivered to the Seller pursuant to Section 3.2 of the
FINOVA Capital Mortgage Loan Purchase Agreement, pursuant to Section 3.2 of the
FINOVA Commercial Mortgage Owner Trust 1998-1 Mortgage Loan Purchase Agreement
or pursuant to Section 2.3 of the Llama Mortgage Loan Purchase Agreement.

            Notwithstanding the foregoing, in the event that Seller cannot
deliver to the Custodian any UCC-2 or UCC-3 assignment with the filing
information of the UCC-1 financing statement being assigned, solely because of a
delay caused by the public filing office where such UCC-1 financing statement
has been delivered for filing, Seller shall deliver or cause to be delivered to
the Custodian a photocopy of such UCC-2 or UCC-3 assignment with the filing
information left blank. Seller, promptly upon receipt of the applicable filing
information of the UCC-1 financing statement being so assigned, shall deliver to
the Custodian the original UCC-2 or UCC-3 assignment with all appropriate filing
information set forth thereon.

            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 Subject 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 Subject 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 Subject
Mortgage Loans hereunder, exclusive in each case of documents prepared by Seller
or any of its affiliates solely for internal uses, shall immediately vest in
Depositor and shall be forwarded by Seller to the Custodian by overnight mail
for next-day delivery and retained and maintained, in trust, by the Custodian at
the will of Depositor, in such custodial capacity only. 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 of Seller's receipt thereof to the Servicer via wire
transfer for deposit by the Servicer into the Collection Account.

     Section 4. Depositor's Conditions to Closing. The obligations of Depositor
under this Agreement shall be subject to the satisfaction, on the Closing Date,
of the following conditions:

            (a) Each of the obligations of 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
      shall be true and correct in all material respects as of the Closing Date;
      and no event shall have occurred with respect to Seller or any of the
      Subject 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 Custodian or
      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 Depositor and Seller, duly executed by all signatories other
      than Depositor, as required pursuant to the respective terms thereof:

            (i) the Mortgage Files, which shall have been delivered to and held
      by the Custodian on behalf of Seller;

            (ii)  the Mortgage Loan Schedule;

            (iii) an officer's certificate of Seller, dated as of the Closing
      Date, with certified copies of the charter, by-laws, and a certificate of
      good standing dated as of a recent date of Seller;

            (iv) an opinion of Seller's in-house counsel, dated the Closing
      Date, in substantially the same form as Exhibit D attached hereto.

            Such opinion may express its reliance as to factual matters on,
among other things specified in such opinion, the representations and warranties
made herein, and on certificates or other documents furnished by officers of
Seller.

            In rendering the opinion expressed above, such counsel may limit
such opinions to matters governed by the General Corporation Law of the State of
Delaware and the laws of the State of New York and the United States and shall
not be required to express any opinion with respect to the registration or
qualification of the Certificates under any applicable state or federal
securities laws.

            (v) an opinion of Latham & Watkins, special counsel to Seller, dated
      the Closing Date, substantially to the effect of the following (with such
      changes and modifications as Depositor may approve):

            Assuming the due authorization, execution and delivery of this
            Agreement by Seller, this Agreement constitutes a valid and binding
            agreement of Seller, enforceable against Seller in accordance with
            its terms, except to the extent that enforcement hereof may be
            limited by (x) bankruptcy, insolvency, reorganization, moratorium or
            other similar laws now or hereafter in effect and (y) general
            principles of equity (regardless of whether enforceability is
            considered in a proceeding at law or in equity).

            Such opinion may express its reliance as to factual matters on,
among other things specified in such opinion, the representations and warranties
made by, and on certificates or other documents furnished by officers of,
Seller. Such opinion may also express its reliance on the opinion of Seller's
in-house counsel, as referred to in clause (iv) above.

            In rendering the opinions expressed above, such counsel may limit
such opinions to matters governed by the laws of the State of New York and the
United States to the extent specifically referred to.

            Such counsel shall also state that, on the basis of the information
gained in the course of its representation of the Seller, considered in light of
its understanding of applicable law and the experience it has gained through its
practice, nothing has come to its attention in the course of its review of the
prospectus dated October 12, 1999 and prospectus supplement dated July [27],
2000 (collectively, the "Prospectus") relating to the Depositor's Mortgage
Pass-Through Certificates, Series 2000-C1 (the "Certificates") and the
confidential offering circular (the "Offering Circular") dated July [27], 2000
relating to certain classes of the Certificates that would cause it to believe
that as of its date or as of the Closing Date, the information relating to the
Subject Mortgage Loans in the Prospectus contained or contains any untrue
statement of a material fact or omitted or omits to state any material fact
necessary in order to make the statements therein, in light of the circumstances
under which they were made, not misleading.

            (vi) 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.

            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 and such
            other documents required to evidence fulfillment of the conditions
            set forth in this Agreement as Seller or its counsel may reasonably
            request.

            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, validly existing and in good standing
      under the laws of the State of New York. 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) Neither the execution and delivery by Seller of this Agreement,
      nor the compliance by Seller with the provisions hereof, nor the
      consummation by Seller of transactions contemplated by this Agreement will
      (I) conflict with or result in a breach of, or constitute a default or
      result in the acceleration of any obligations under, the certificate of
      incorporation of Seller or, after giving effect to the consents or the
      taking of the actions contemplated by clause (II) of this subparagraph
      (ii), any of the provisions of any law, governmental rule, regulation,
      judgment, decree or order binding on Seller or its properties or any of
      the provisions of any material indenture or mortgage or any other material
      contract or instrument to which Seller is a party or by which it or any of
      its properties is bound or result in the creation or imposition of any
      lien, charge or encumbrance upon any of its property pursuant to the terms
      of any such indenture, mortgage, contract or other instrument (other than
      pursuant to this Agreement) or (II) require the consent of or notice to,
      or any filing with, any person, entity or governmental body, which has not
      been obtained or made by Seller, 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 adverse effect on the sale of the Subject
      Mortgage Loans by Seller.

            (iii) The execution and delivery by Seller of this Agreement, and
      the consummation of transactions contemplated by this Agreement on the
      terms set forth herein, have been duly authorized by all necessary
      corporate action on the part of Seller and are within the corporate power
      of Seller, and this Agreement has been duly executed and delivered by
      Seller and constitutes a legal, valid and binding instrument, enforceable
      against Seller in accordance with its terms, subject to applicable
      bankruptcy, reorganization, insolvency, moratorium and other laws of
      general applicability relating to or affecting the enforcement of
      creditors' rights 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).

            (iv) No consent, approval, authorization or order of, registration
      or filing with, or notice to any federal, state or local governmental
      authority or court that has not been obtained, made or given is required
      in connection with the execution, delivery and performance of this
      Agreement by Seller.

            (v) Except as set forth on Schedule V hereto, the representations
      and warranties contained in Exhibit A hereto are true and correct in all
      material respects with respect to the MSDWMC Mortgage Loans as of the
      Closing Date.

            (b) In addition, the Seller hereby represents and warrants to the
      Depositor and its assigns the following with respect to the FINOVA
      Mortgage Loans:

            (i) Seller has delivered to the Trustee the fully executed original
      FINOVA Capital Mortgage Loan Purchase Agreement and FINOVA Commercial
      Mortgage Owner Trust 1998-1 Mortgage Loan Purchase Agreement, redacted to
      delete the Redacted FINOVA Provisions;

            (ii) The FINOVA Capital Mortgage Loan Purchase Agreement and FINOVA
      Commercial Mortgage Owner Trust 1998-1 Mortgage Loan Purchase Agreement
      are in full force and effect and have not been modified or amended in any
      material respect;

            (iii) The obligations of FINOVA Realty Capital, the FINOVA
      Commercial Mortgage Owner Trust 1998-1 and FINOVA Capital Corporation to
      cure or repurchase an affected FINOVA Mortgage Loan for breach of
      representation or warranty as set forth in the FINOVA Capital Mortgage
      Loan Purchase Agreement and the FINOVA Commercial Mortgage Owner Trust
      1998-1 Mortgage Loan Purchase Agreement (the "FINOVA Loan Seller
      Obligations") are the valid, legal, and binding obligations of FINOVA
      Realty Capital, FINOVA Commercial Mortgage Owner Trust 1998-1 and FINOVA
      Capital Corporation, enforceable against FINOVA Realty Capital, FINOVA
      Commercial Mortgage Owner Trust 1998-1 and FINOVA Capital Corporation in
      accordance with their terms;

            (iv) The FINOVA Loan Seller Obligations have not been previously
      assigned;

            (v) The FINOVA Loan Seller Obligations are assignable in accordance
      with their terms and the Seller has the full right, power and authority to
      assign those sections of the FINOVA Capital Mortgage Loan Purchase
      Agreement and FINOVA Commercial Mortgage Owner Trust 1998-1 Mortgage Loan
      Purchase Agreement assigned hereunder and all of the representations
      assigned hereunder; and

            (vi) The FINOVA Loan Seller Obligations are not subject to, and are
      being transferred to the Depositor (and subsequently to the Trust) free
      and clear of, any and all liens, pledges, charges, security interests or
      other encumbrances.

            (vii) Other than as noted on Schedule V hereto, the Mortgage Loan
      Seller has no knowledge that any of the representations and warranties
      contained in the FINOVA Mortgage Capital Mortgage Loan Purchase Agreement
      or the FINOVA Commercial Mortgage Owner Trust 1998-1 Mortgage Loan
      Purchase Agreement are not true and correct in all material respects as of
      the Closing Date.

            (viii) No scheduled principal and interest under any FINOVA Mortgage
      Loan is 30 days or more delinquent as of the Closing Date.

            (ix) The information set forth in Schedule II-B and II-C is
      complete, true and correct in all material respects as of the date of this
      Agreement and as of the Cut-off Date.

            (x) Immediately prior to the transfer to the Depositor, the Seller
      had good title to, and was the sole owner of, each FINOVA Mortgage Loan.

            (xi) The gross proceeds of each FINOVA Mortgage Loan to the related
      Mortgagor at origination did not exceed the non-contingent principal
      amount of the Mortgage Loan and either: (a) such Mortgage Loan is secured
      by an interest in real property as defined by the Code and the Regulations
      thereunder having a fair market value (i) at the date the Mortgage Loan
      was originated at least equal to 80 percent of the original principal
      balance of the Mortgage Loan or (ii) at the Closing Date at least equal to
      80 percent of the principal balance of the Mortgage Loan on such date;
      provided that for purposes hereof, the fair market value of the real
      property interest must first be reduced by (x) the amount of any lien on
      the real property interest that is senior to the Mortgage Loan and (y) a
      proportionate amount of any lien that is in parity with the Mortgage Loan
      (unless such other lien secures a Mortgage Loan that is
      cross-collateralized with such Mortgage Loan, in which event the
      computation described in clauses (a)(i) and (a)(ii) of this paragraph
      shall be made on a pro rata basis in accordance with the fair market
      values of the Mortgaged Properties securing such cross-collateralized
      Mortgage Loans); or (b) substantially all the proceeds of such Mortgage
      Loan were used to acquire, improve or protect the real property which
      served as the only security for such Mortgage Loan (other than a recourse
      feature or other third party credit enhancement within the meaning of
      Treasury Regulations Section 1.860G-2(a)(1)(ii)).

            (c) In addition, the Seller hereby represents and warrants to the
      Depositor and its assigns the following with respect to the Llama Mortgage
      Loans:

            (i) Seller has delivered to the Trustee the fully executed original
      Llama Mortgage Loan Purchase Agreement;

            (ii) The Llama Mortgage Loan Purchase Agreement is in full force and
      effect and has not been modified or amended in any material respect;

            (iii) The obligations of Llama Mortgage Company to cure or
      repurchase an affected Llama Mortgage Loan for breach of representation or
      warranty as set forth in the Llama Mortgage Loan Purchase Agreement (the
      "Llama Loan Seller Obligations") are the valid, legal, and binding
      obligations of Llama Mortgage Company, enforceable against Llama Mortgage
      Company in accordance with its terms;

            (iv) The Llama Loan Seller Obligations have not been previously
      assigned;

            (v) The Llama Loan Seller Obligations are assignable in accordance
      with their terms and the Seller has the full right, power and authority to
      assign those sections of the Llama Mortgage Loan Purchase Agreement
      assigned hereunder and all of the representations assigned hereunder; and

            (vi) The Llama Loan Seller Obligations are not subject to, and are
      being transferred to the Depositor (and subsequently to the Trust) free
      and clear of, any and all liens, pledges, charges, security interests or
      other encumbrances.

            (vii) Other than as noted on Schedule V hereto, the Mortgage Loan
      Seller has no knowledge that any of the representations and warranties
      contained in the Llama Mortgage Loan Purchase Agreement are not true and
      correct in all material respects as of the Closing Date.

            (viii) No scheduled principal and interest under any Llama Mortgage
      Loan is 30 days or more delinquent as of the Closing Date.

            (ix) If any Mortgage is a deed of trust, (1) a trustee, duly
      qualified under applicable law to serve as such, is properly designated
      and serving under such Mortgage, and (2) no fees or expenses are payable
      to such trustee by Llama Mortgage Company, the Depositor or any transferee
      thereof except in connection with a trustee's sale after default by the
      related Mortgagor or in connection with any full or partial release of the
      related Mortgaged Property or related security for the related Llama
      Mortgage Loan.

            (x) An environmental site assessment meeting the requirements of the
      American Society of Testing and Materials was performed with respect to
      each Mortgaged Property in connection with the origination of the related
      Llama Mortgage Loan, a report of each such assessment (an "Environmental
      Report") has been delivered to the Purchaser, and the Seller has no
      knowledge of any material and adverse environmental condition or
      circumstance affecting any Mortgaged Property that was not disclosed in
      such report. Each Mortgage requires the related Mortgagor to comply with
      all applicable federal, state and local environmental laws and
      regulations. Where such assessment disclosed the existence of a material
      and adverse environmental condition or circumstance affecting any
      Mortgaged Property, (i) a party not related to the Mortgagor was
      identified as the responsible party for such condition or circumstance or
      (ii) the related Mortgagor was required either to provide additional
      security which was deemed to be sufficient by the originator to remediate
      the problem and/or to obtain an operations and maintenance plan.

            (xi) The gross proceeds of each Llama Mortgage Loan to the related
      Mortgagor at origination did not exceed the non-contingent principal
      amount of the Mortgage Loan and either: (a) such Mortgage Loan is secured
      by an interest in real property as defined by the Code and the Regulations
      thereunder having a fair market value (i) at the date the Mortgage Loan
      was originated at least equal to 80 percent of the original principal
      balance of the Mortgage Loan or (ii) at the Closing Date at least equal to
      80 percent of the principal balance of the Mortgage Loan on such date;
      provided that for purposes hereof, the fair market value of the real
      property interest must first be reduced by (x) the amount of any lien on
      the real property interest that is senior to the Mortgage Loan and (y) a
      proportionate amount of any lien that is in parity with the Mortgage Loan
      (unless such other lien secures a Mortgage Loan that is
      cross-collateralized with such Mortgage Loan, in which event the
      computation described in clauses (a)(i) and (a)(ii) of this paragraph
      shall be made on a pro rata basis in accordance with the fair market
      values of the Mortgaged Properties securing such cross-collateralized
      Mortgage Loans); or (b) substantially all the proceeds of such Mortgage
      Loan were used to acquire, improve or protect the real property which
      served as the only security for such Mortgage Loan (other than a recourse
      feature or other third party credit enhancement within the meaning of
      Treasury Regulations Section 1.860G-2(a)(1)(ii)).

            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 MSDWMC Mortgage Loans and shall
continue in full force and effect, subject to Section 14 of this Agreement,
notwithstanding any restrictive or qualified endorsement on the mortgage 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 Subject Mortgage Loans or any failure on the part
of Depositor to review or examine such documents and shall inure to the benefit
of any initial transferee of the Subject Mortgage Loans from Depositor
including, without limitation, the Trustee for the benefit of the Holders of the
Certificates.

            Upon discovery of any Defect (as defined herein) in a Mortgage File
related to a Subject Mortgage Loan, Depositor or its assignee shall promptly
notify Seller in writing of such Defect and request that Seller cure such Defect
within 90 days from the date Seller was notified of such Defect; provided,
however, that if such Defect would cause such Mortgage Loan to be other than a
"qualified mortgage" under Section 860G(a)(3) of the Code, then such cure shall
be within 90 days of discovery of such Defect. A document in the Mortgage File
shall be deemed to have a "Defect" if (a) any document required to be included
in the Mortgage File is not in the possession of the Custodian, on behalf of the
Trustee, within the time required to be delivered pursuant to this Agreement or
(b) such document has not been properly executed or is otherwise defective on
its face; provided, however, that a document shall not be deemed to have a
Defect if such Defect is caused by the failure by Depositor to execute such
document after having been directed by Seller to execute such document. If
Seller does not correct or cure such Defect within such period, as Depositor's
sole and exclusive remedy as a result of such Defect, Seller shall purchase such
Mortgage Loan from the Trust Fund at the Purchase Price pursuant to Section 2.03
of the Pooling and Servicing Agreement.

            Within 90 days of the receipt of written notice by Seller of a
breach (a "Breach") of any of the representations, warranties or covenants of
Seller with respect to the MSDWMC Mortgage Loans set forth in Exhibit A to this
Agreement or, with respect to the FINOVA Mortgage Loans, the representations,
warranties and covenants contained in Section 6(b) hereof or, with respect to
the Llama Mortgage Loans, the representations, warranties and covenants
contained in Section 6(c) hereof (or, if any such Breach would cause the Subject
Mortgage Loan to be other than a "qualified mortgage" under Section 860G(a)(3)
of the Code, within 90 days of discovery of the Breach), which, in either case,
materially and adversely affects either (i) the interests of Depositor or the
Certificateholders in the related Subject Mortgage Loan or (ii) the value of the
related MSDWMC Mortgage Loan, Seller shall cure such Breach and, if Seller does
not correct or cure such Breach within such period, or if such Breach cannot be
so cured, then, as Depositor's sole and exclusive remedy as a result of such
Breach, Seller shall purchase the affected Subject Mortgage Loan at the Purchase
Price pursuant to Section 2.03 of the Pooling and Servicing Agreement. If Seller
is required to repurchase any Subject Mortgage Loan that is part of a Mortgage
Group (as defined herein), Seller shall also be required to repurchase the
remaining MSDWMC Mortgage Loans in such Mortgage Group. For purposes of this
paragraph, a "Mortgage Group" is any group of MSDWMC Mortgage Loans identified
as a Mortgage Group on Schedule III to this Agreement.

            The Purchase Price for any repurchased Mortgage Loan shall be
payable to Depositor or, subsequent to the assignment of the MSDWMC Mortgage
Loans to the Trustee, the Trustee as its assignee, by wire transfer of
immediately available funds to the account designated by Depositor or its
assignee, and Depositor or its assignee, upon receipt of such funds, shall
promptly release the related Mortgage File or cause it to be released, to Seller
and shall execute and deliver such instruments of transfer or assignment, in
each case without recourse, as shall be necessary to vest in Seller title to any
Mortgage Loan released pursuant hereto. The Depositor or the Servicer, as
applicable, shall deliver to Seller an officer's certificate setting forth the
calculation of the Purchase Price.

            In the event the mortgage loan purchase price as such term is
defined in the Llama Mortgage Loan Purchase Agreement (the "Llama Mortgage Loan
Purchase Price") for a Llama Mortgage Loan is less than the Purchase Price
required under the Pooling and Servicing Agreement, the Seller shall pay to the
Depositor or, subsequent to the assignment of the Llama Mortgage Loans to the
Trustee, the Trustee as its assignee, by wire transfer of immediately available
funds to the account designated by Depositor or its assignee, the difference
between the Llama Mortgage Loan Purchase Price and the Purchase Price and
Depositor or its assignee, upon receipt of such funds, shall promptly release
the related Mortgage File or cause it to be released, to Llama Mortgage Company
and shall execute and deliver such instruments of transfer or assignment, in
each case without recourse, as shall be necessary to vest in Llama Mortgage
Company title to any Mortgage Loan released pursuant hereto. The Depositor or
the Servicer, as applicable, shall deliver to Seller an officer's certificate
setting forth the calculation of the Purchase Price.

     Section 8. 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 or 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).

            (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 performance of the Depositor of this
      Agreement or the consummation of any transactions contemplated by this
      Agreement.

            Section 9. 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 11 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 10. Accountant's Letters. On or before the Closing Date,
PriceWaterhouseCoopers LLP will have reviewed the characteristics of the Subject
Mortgage Loans described in (a) the Mortgage Loan Schedule attached hereto and
set forth as an exhibit to the Pooling and Servicing Agreement and (b) the
computer disk prepared by Seller and provided to Depositor and will compare
those characteristics to, and ensure their agreement with (i) the description of
the Subject Mortgage Loans contained in the Prospectus Supplement and the
Offering Circular, respectively; (ii) original documentation and files of Seller
maintained with respect to each Mortgage Loan; and (iii) if applicable,
information with respect to such Subject Mortgage Loans contained in the report
on Form 8-K to be filed by Depositor with the Commission in connection with the
offering of the Certificates. Seller will cooperate with Depositor and
PriceWaterhouseCoopers LLP in making available all information and taking all
steps reasonably necessary to permit such accountants to complete the review set
forth in this Section 10 and to deliver the letters required of them under the
Underwriting Agreement and the Certificate Purchase Agreement.

     Section 11. Expenses; Recording Costs. Seller and Depositor agree that
expenses shall be paid in accordance with the Letter of Understanding.

     Section 12. Notices. All communications hereunder will be in writing, and,
(a) if sent to Depositor, will be mailed, delivered or telecopied and confirmed
to it at Credit Suisse First Boston Mortgage Securities Corp., Eleven Madison
Avenue, 5th Floor, New York, New York 10010, Attention: Allan J. Baum, Telecopy
No.: (212) 325-8162; and (b) if sent to Seller, will be mailed, delivered or
telecopied to it at Morgan Stanley Dean Witter Mortgage Capital Inc., 1585
Broadway, New York, New York 10036, Attention: Pamela Sanderson, Telecopy No.:
(212) 761-0748.

     Section 13. 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 14. Successors. This Agreement shall inure to the benefit of and
shall be binding upon Seller and Depositor and their respective successors 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 (a) the indemnities
of Seller contained in that certain Indemnification Agreement dated July 27,
2000 among Seller, Depositor and the Underwriters, subject to all limitations
therein contained, shall also be for the benefit of the officers and directors
of Depositor, the Underwriters and the Initial Purchasers and any person or
persons who control Depositor, the Underwriters and the Initial Purchasers
within the meaning of Section 15 of the Securities Act or Section 20 of the 1934
Act, and (b) the rights of Depositor pursuant to this Agreement, subject to all
limitations herein contained, including those set forth in Section 9 of this
Agreement, may be assigned to the Trustee 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. No owner of a
Certificate issued pursuant to the Pooling and Servicing Agreement shall be
deemed a successor because of such ownership.

     Section 15. 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.

     Section 16. 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 17. Further Assurances. Depositor and Seller agree to execute and
deliver such instruments and take such actions as the other parties may, from
time to time, reasonably request in order to effectuate the purpose and to carry
out the terms of this Agreement.

     Section 18. 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 19. Treatment as Security Agreement. It is the express intent of
the parties hereto that the conveyance of the Subject Mortgage Loans by Seller
to Depositor as provided in this Agreement be, and be construed as, a sale of
the Subject Mortgage Loans by Seller to Depositor. It is, further, not the
intention of the parties that such conveyance be deemed a pledge of the Subject
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 Subject 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
Subject 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, 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 Subject Mortgage Loans, including the related Mortgage
      Notes, Mortgages and title and hazard and primary mortgage insurance
      policies identified on the Mortgage Loan Schedule, including 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 all cases which
      are payable after the Cut-off Date; and

            (iii) all cash and non-cash proceeds of the collateral described in
      (i) and (ii) above which are payable after the Cut-off Date;

            (c) the possession by Depositor or its assignee of the Mortgage
      Notes, the Mortgages 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 9-305 and 9-115
      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. Seller, Depositor or their assignee at the direction of
      Seller 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 Subject 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.

     Section 20. 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 the date first
above written.

                                 MORGAN STANLEY DEAN WITTER MORTGAGE CAPITAL
                                      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 July 11, 2000, between Morgan Stanley Dean Witter Mortgage Capital 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.

            "Borrower" means the borrower under the Mortgage Loan.

            "Certificate Purchase Agreement" means the Certificate Purchase
Agreement, dated July 27, 2000, between Depositor and the Initial Purchasers.

            "Certificates" means each class of the Credit Suisse First Boston
Mortgage Securities Corp. Commercial Mortgage Pass-Through Certificates, Series
2000-C1.

            "Closing Date" means August 3, 2000.

            "Code" means the Internal Revenue Code of 1986, as amended.

            "Cut-off Date" means July 11, 2000.

            "Environmental Report" means the environmental audit report with
respect to each Mortgaged Property delivered to Seller in connection with the
related Mortgage, if any.

            "Initial Purchasers" means Credit Suisse First Boston Corporation
and Morgan Stanley & Co. Incorporated.

            "Investment Officer" means any employee of Seller designated by
Seller as an "investment officer" or whose title includes the words "investment
officer."

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

            "Mortgage Loan Pool" means the pool of Mortgage Loans, which are the
primary assets of the Trust Fund.

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

            "Offered Certificates" means the Class A-1, Class A-2, Class B,
Class C and Class D.

            "Offering Circular" means the confidential offering circular dated
July 27, 2000, describing certain classes of the Certificates.

            "Originator" means any institution which originated a Mortgage Loan
for a related Borrower.

            "Pooling and Servicing Agreement" means the Pooling and Servicing
Agreement creating the Trust Fund and the interests therein, dated as of July
11, 2000, among CapMark Services, LP, National Consumer Cooperative Bank, the
Special Servicer, Depositor and the Trustee, including the Mortgage Loan
Schedule annexed thereto.

            "Prospectus" means the Prospectus, dated October 12, 1999.

            "Prospectus Supplement" means the Prospectus Supplement, dated July
27, 2000, relating to the Offered Certificates.

            "Subject Mortgage Loans" means the mortgage loans to be sold to
Depositor pursuant to the Agreement, specifically identified in the Mortgage
Loan Schedule to the Agreement.

            "Underwriters" means Credit Suisse First Boston Corporation and
Morgan Stanley & Co. Incorporated.

            "Underwriting Agreement" means the Underwriting Agreement, dated
July 27, 2000, between Depositor and the Underwriters.

<PAGE>

                                  SCHEDULE II-A

                          MSDWMC MORTGAGE LOAN SCHEDULE

<PAGE>

                                  SCHEDULE II-B

                      FINOVA CAPITAL MORTGAGE LOAN SCHEDULE

<PAGE>

                                  SCHEDULE II-C

                  FINOVA COMMERCIAL MORTGAGE OWNER TRUST 1998-1
                             MORTGAGE LOAN SCHEDULE

<PAGE>

                                  SCHEDULE II-D

                          LLAMA MORTGAGE LOAN SCHEDULE

<PAGE>

                                  SCHEDULE III

                   MORTGAGE LOANS CONSTITUTING MORTGAGE GROUPS

<PAGE>

                                  SCHEDULE IV

                     MORTGAGE LOANS WITH LOST MORTGAGE NOTES

<PAGE>

                                   SCHEDULE V

       EXCEPTIONS WITH RESPECT TO SELLER'S REPRESENTATIONS AND WARRANTIES

<PAGE>

                                                                       EXHIBIT A

                    REPRESENTATIONS AND WARRANTIES OF SELLER
                       REGARDING THE MSDWMC MORTGAGE LOANS

            The Seller represents and warrants with respect to each Mortgage
Loan, as applicable, that as of the Closing Date:

              (i) Schedule II-A. The information set forth in Schedule II-A is
complete, true and correct in all material respects as of the date of this
Agreement and as of the Cut-off Date.

              (ii)Whole Loan; Ownership of Mortgage Loans. Each Mortgage Loan is
a whole loan and not a participation interest in a mortgage loan. Immediately
prior to the transfer to the Depositor, the Seller had good title to, and was
the sole owner of, each Mortgage Loan. The Seller has full right, power and
authority to transfer and assign each of the Mortgage Loans to or at the
direction of the Depositor and has validly and effectively conveyed (or caused
to be conveyed) to the Depositor or its designee all of the Seller's legal and
beneficial interest in and to the Mortgage Loans free and clear of any and all
pledges, liens, charges, security interests and/or other encumbrances. The sale
of the Mortgage Loans to the Depositor or its designee does not require the
Seller to obtain any governmental or regulatory approval or consent that has not
been obtained.

              (iii) Payment Record. No scheduled payment of principal and
interest under any Mortgage Loan was 30 days or more past due as of the Cut-off
Date, and no Mortgage Loan was 30 days or more delinquent in the twelve-month
period immediately preceding the Cut-off Date.

              (iv)Lien; Valid Assignment. The Mortgage related to and delivered
in connection with each Mortgage Loan constitutes a valid and, subject to the
exceptions set forth in paragraph (xiii) below, enforceable first priority lien
upon the related Mortgaged Property, which includes all buildings located
thereon and all fixtures thereto, prior to all other liens and encumbrances,
except for (a) the lien for current real estate taxes and assessments not yet
due and payable, (b) covenants, conditions and restrictions, rights of way,
easements and other matters that are of public record and/or are referred to in
the related lender's title insurance policy, (c) exceptions and exclusions
specifically referred to in such lender's title insurance policy, and (d) other
matters to which like properties are commonly subject, none of which matters
referred to in clauses (b), (c) or (d), individually or in the aggregate,
materially interferes with the security intended to be provided by such
Mortgage, the marketability, value or current use of the Mortgaged Property or
the current ability of the Mortgaged Property to generate operating income
sufficient to service the Mortgage Loan debt (the foregoing items (a) through
(d) being herein referred to as the "Permitted Encumbrances"). The related
assignment of such Mortgage executed and delivered in favor of the Trustee is in
recordable form and constitutes a legal, valid and binding assignment,
sufficient to convey to the assignee named therein all of the assignor's right,
title and interest in, to and under such Mortgage. Such Mortgage, together with
any separate security agreements, chattel mortgages or equivalent instruments,
establishes and creates a valid and, subject to the exceptions set forth in
paragraph (xiii) below, enforceable security interest in favor of the holder
thereof in all of the related Mortgagor's personal property used in, and
reasonably necessary to operate, the related Mortgaged Property. A Uniform
Commercial Code financing statement has been filed and/or recorded in all places
necessary to perfect a valid security interest in such personal property, and
such security interest is a first priority security interest, subject to any
prior purchase money security interest in such personal property and any
personal property leases applicable to such personal property. Notwithstanding
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 Uniform Commercial
Code financing statements are required in order to effect such perfection.

              (v) Assignment of Leases and Rents. The Assignment of Leases set
forth in the Mortgage and related to and delivered in connection with each
Mortgage Loan establishes and creates a valid, subsisting and, subject to the
exceptions set forth in paragraph (xiii) below, enforceable first priority lien
and first priority security interest in the related Mortgagor's interest in all
leases, sub-leases, licenses or other agreements pursuant to which any person is
entitled to occupy, use or possess all or any portion of the real property
subject to the related Mortgage, and each assignor thereunder has the full right
to assign the same. The related assignment of any Assignment of Leases, not
included in a Mortgage, executed and delivered in favor of the Trustee is in
recordable form and constitutes a legal, valid and binding assignment,
sufficient to convey to the assignee named therein all of the assignor's right,
title and interest in, to and under such Assignment of Leases.

              (vi)Mortgage Status; Waivers and Modifications. No Mortgage has
been satisfied, cancelled, rescinded or subordinated in whole or in material
part, and the related Mortgaged Property has not been released from the lien of
such Mortgage, in whole or in material part, nor has any instrument been
executed that would effect any such satisfaction, cancellation, subordination,
rescission or release, except for any partial reconveyances of portions of the
real property that do not materially adversely affect the value of the property.
None of the terms of any Mortgage Note, Mortgage or Assignment of Leases has
been impaired, waived, altered or modified in any respect, except by written
instruments, all of which are included in the related Mortgage File.

              (vii) Condition of Property; Condemnation. Except as set forth in
an engineering report prepared in connection with the origination of the related
Mortgage Loan, each Mortgaged Property is, to the Seller's knowledge, free and
clear of any damage that would materially and adversely affect its value as
security for the related Mortgage Loan. The Seller has received no notice of and
has no knowledge of the commencement of any proceeding for the condemnation of
all or any material portion of any Mortgaged Property. To the Seller's knowledge
(based on surveys and/or title insurance obtained in connection with the
origination of the Mortgage Loans), as of the date of the origination of each
Mortgage Loan, all of the material improvements on the related Mortgaged
Property which were considered in determining the appraised value of the
Mortgaged Property lay wholly within the boundaries and building restriction
lines of such property, except for encroachments that are insured against by the
lender's title insurance policy referred to herein or that do not materially and
adversely affect the value or marketability of such Mortgaged Property, and no
improvements on adjoining properties materially encroached upon such Mortgaged
Property so as to materially and adversely affect the value or marketability of
such Mortgaged Property, except those encroachments that are insured against by
the Title Policy referred to herein.

              (viii) Title Insurance. Each Mortgaged Property is covered by an
American Land Title Association (or an equivalent form of) lender's title
insurance policy or a marked-up title insurance commitment (on which the
required premium has been paid) which evidences such title insurance policy (the
"Title Policy") in the original principal amount of the related Mortgage Loan
after all advances of principal. Each Title Policy insures that the related
Mortgage is a valid first priority lien on such Mortgaged Property, subject only
to Permitted Encumbrances. Each Title Policy (or, if it has yet to be issued,
the coverage to be provided thereby) is in full force and effect, all premiums
thereon have been paid and no material claims have been made thereunder and no
claims have been paid thereunder. No holder of the related Mortgage has done, by
act or omission, anything that would materially impair the coverage under such
Title Policy. Immediately following the transfer and assignment of the related
Mortgage Loan to the Trustee, such Title Policy (or, if it has yet to be issued,
the coverage to be provided thereby) will inure to the benefit of the Trustee
without the consent of or notice to the insurer. To the Seller's knowledge, the
insurer issuing such Title Policy is qualified to do business in the
jurisdiction in which the related Mortgaged Property is located.

              (ix)No Holdbacks. The proceeds of each Mortgage Loan have been
fully disbursed and there is no obligation for future advances with respect
thereto. With respect to each Mortgage Loan, any and all requirements as to
completion of any on-site or off-site improvement and as to disbursements of any
funds escrowed for such purpose that were to have been complied with on or
before the Closing Date have been complied with, or any such funds so escrowed
have not been released.

              (x) Mortgage Provisions. The Mortgage Note or Mortgage for each
Mortgage Loan, together with applicable state law, contains customary and
enforceable provisions (subject to the exceptions set forth in paragraph (xiii))
such as to render the rights and remedies of the holder thereof adequate for the
practical realization against the related Mortgaged Property of the principal
benefits of the security intended to be provided thereby. Each Mortgage Loan
contains a "due on sale" clause, which provides for the acceleration of the
payment of the unpaid principal balance of the Mortgage Loan if, without prior
written consent of the holder of the Mortgage, the property subject to the
Mortgage or any material portion thereof, is transferred, sold or encumbered
other than the junior liens listed on Schedule B attached hereto; provided,
however, that certain Mortgage Loans provide a mechanism for the assumption of
the loan by a third party upon the Mortgagor's satisfaction of certain
conditions precedent, and upon payment of a transfer fee, if any.

              (xi)Trustee under Deed of Trust. If any Mortgage is a deed of
trust, (1) a trustee, duly qualified under applicable law to serve as such, is
properly designated and serving under such Mortgage, and (2) no fees or expenses
are payable to such trustee by the Seller, the Depositor or any transferee
thereof except in connection with a trustee's sale after default by the related
Mortgagor or in connection with any full or partial release of the related
Mortgaged Property or related security for the related Mortgage Loan.

              (xii) Environmental Conditions. An environmental site assessment
meeting the requirements of the American Society of Testing and Materials was
performed with respect to each Mortgaged Property in connection with the
origination of the related Mortgage Loan, a report of each such assessment (an
"Environmental Report") has been delivered to the Purchaser, and the Seller has
no knowledge of any material and adverse environmental condition or circumstance
affecting any Mortgaged Property that was not disclosed in such report. Each
Mortgage requires the related Mortgagor to comply with all applicable federal,
state and local environmental laws and regulations. Where such assessment
disclosed the existence of a material and adverse environmental condition or
circumstance affecting any Mortgaged Property, (i) a party not related to the
Mortgagor was identified as the responsible party for such condition or
circumstance or (ii) the related Mortgagor was required either to provide
additional security which was deemed to be sufficient by the originator to
remediate the problem and/or to obtain an operations and maintenance plan.

              (xiii) Loan Document Status. Each Mortgage Note, Mortgage and
other agreement that evidences or secures a Mortgage Loan and that was executed
by or on behalf of the related Mortgagor is the legal, valid and binding
obligation of the maker thereof (subject to any non-recourse provisions
contained in any of the foregoing agreements and any applicable state
anti-deficiency or market value limit deficiency legislation), enforceable in
accordance with its terms, except as such enforcement may be limited by
bankruptcy, insolvency, reorganization or other similar laws affecting the
enforcement of creditors' rights generally, and by general principles of equity
(regardless of whether such enforcement is considered in a proceeding in equity
or at law) and there is no valid defense, counterclaim or right of offset or
rescission available to the related Mortgagor with respect to such Mortgage
Note, Mortgage or other agreements.

              (xiv) Insurance. Each Mortgaged Property is, and is required
pursuant to the related Mortgage, to be insured by (a) a fire and extended
perils insurance policy providing coverage against loss or damage sustained by
reason of fire, lightning, windstorm, hail, explosion, riot, riot attending a
strike, civil commotion, aircraft, vehicles and smoke, and, to the extent
required as of the date of origination by the originator of such Mortgage Loan
consistent with its normal commercial mortgage lending practices, against other
risks insured against by persons operating like properties in the locality of
the Mortgaged Property in an amount not less than the lesser of the principal
balance of the related Mortgage Loan and the replacement cost of the Mortgaged
Property with no deduction for depreciation, and not less than the amount
necessary to avoid the operation of any co-insurance provisions with respect to
the Mortgaged Property; (b) a business interruption or rental loss insurance
policy, in an amount at least equal to six months of operations of the Mortgaged
Property; (c) a flood insurance policy (if any portion of the buildings or other
structures on the Mortgaged Property are located in an area identified by the
Federal Emergency Management Agency as having special flood hazards); and (d) a
comprehensive general liability insurance policy in amounts as are generally
required by commercial mortgage lenders, and in any event not less than $1
million per occurrence. Such insurance policy contains a standard mortgagee
clause that names the mortgagee as an additional insured and requires prior
notice to the holder of the Mortgage of termination or cancellation. No such
notice has been received, including any notice of nonpayment of premiums, that
has not been cured. Each Mortgage obligates the related Mortgagor to maintain
all such insurance and, upon such Mortgagor's failure to do so, authorizes the
holder of the Mortgage to maintain such insurance at the Mortgagor's cost and
expense and to seek reimbursement therefor from such Mortgagor. Each Mortgage
provides that casualty insurance proceeds will be applied either to the
restoration or repair of the related Mortgaged Property or to the reduction of
the principal amount of the Mortgage Loan.

              (xv)Taxes and Assessments. As of the Closing Date, there are no
delinquent or unpaid taxes or assessments (including assessments payable in
future installments), or other outstanding charges affecting any Mortgaged
Property which are or may become a lien of priority equal to or higher than the
lien of the related Mortgage. For purposes of this representation and warranty,
real property taxes and assessments shall not be considered unpaid until the
date on which interest and/or penalties would be first payable thereon.

              (xvi) Mortgagor Bankruptcy. No Mortgagor is, to the Seller's
knowledge, a debtor in any state or federal bankruptcy or insolvency proceeding.

              (xvii) Leasehold Estate. Each Mortgaged Property consists of the
related Mortgagor's fee simple estate in real estate or, if the related Mortgage
Loan is secured in whole or in part by the interest of a Mortgagor as a lessee
under a ground lease of a Mortgaged Property (a "Ground Lease"), by the related
Mortgagor's interest in the Ground Lease but not by the related fee interest in
such Mortgaged Property (the "Fee Interest"):

                  (A) Such Ground Lease or a memorandum thereof has been or will
            be duly recorded; such Ground Lease (or the related estoppel letter
            or lender protection agreement between the Seller and related
            lessor) permits the current use of the Mortgaged Property and
            permits the interest of the lessee thereunder to be encumbered by
            the related Mortgage; and there has been no material change in the
            payment terms of such Ground Lease since the origination of the
            related Mortgage Loan, with the exception of material changes
            reflected in written instruments that are a part of the related
            Mortgage File;

                  (B) The lessee's interest in such Ground Lease is not subject
            to any liens or encumbrances superior to, or of equal priority with,
            the related Mortgage, other than Permitted Encumbrances;

                  (C) The Mortgagor's interest in such Ground Lease is
            assignable to the Depositor 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) and, in the event that it is so assigned, is further
            assignable by the Depositor and its successors and assigns upon
            notice to, but without the need to obtain the consent of, such
            lessor;

                  (D) Such Ground Lease is in full force and effect and no
            material amendment to such Ground Lease is binding on mortgagee
            unless mortgagee has consented thereto, and the Seller has received
            no notice that an event of default has occurred thereunder, and, to
            the Seller's knowledge, there exists no condition that, but for the
            passage of time or the giving of notice, or both, would result in an
            event of default under the terms of such Ground Lease;

                  (E) Such Ground Lease, or an estoppel letter or other
            agreement, (A) requires the lessor under such Ground Lease to give
            notice of any default by the lessee to the holder of the Mortgage;
            and (B) provides that no notice of termination given under such
            Ground Lease is effective against the holder of the Mortgage unless
            a copy of such notice has been delivered to such holder and the
            lessor has offered to enter into a new lease with such holder on
            terms that do not materially vary from the economic terms of the
            Ground Lease.

                  (F) A mortgagee is permitted a reasonable opportunity
            (including, where necessary, sufficient time to gain possession of
            the interest of the lessee under such Ground Lease) to cure any
            default under such Ground Lease, which is curable after the receipt
            of notice of any such default, before the lessor thereunder may
            terminate such Ground Lease;

                  (G) Such Ground Lease has an original term (including any
            extension options set forth therein) which extends not less than ten
            years beyond the Stated Maturity Date of the related Mortgage Loan;

                  (H) Under the terms of such Ground Lease and the related
            Mortgage, taken together, any related insurance proceeds or
            condemnation award awarded to the mortgagee, will be applied either
            (A) to the repair or restoration of all or part of the related
            Mortgaged Property, with the mortgagee or a trustee appointed by it
            the related Mortgage 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 (B) to the payment of the
            outstanding principal balance of the Mortgage Loan together with any
            accrued interest thereon; and

                  (I) Such Ground Lease does not impose any restrictions on
            subletting which would be viewed as commercially unreasonable by
            prudent commercial mortgage lenders in the lending area where the
            Mortgaged Property is located.

              (xviii) Escrow Deposits. All escrow deposits and payments relating
to each Mortgage Loan that are, as of the Closing Date required to be deposited
or paid have been so deposited or paid.

              (xix) LTV Ratio. The gross proceeds of each Mortgage Loan to the
related Mortgagor at origination did not exceed the non-contingent principal
amount of the Mortgage Loan and either: (a) such Mortgage Loan is secured by an
interest in real property as defined by the Code and the Regulations thereunder
having a fair market value (i) at the date the Mortgage Loan was originated at
least equal to 80 percent of the original principal balance of the Mortgage Loan
or (ii) at the Closing Date at least equal to 80 percent of the principal
balance of the Mortgage Loan on such date; provided that for purposes hereof,
the fair market value of the real property interest must first be reduced by (x)
the amount of any lien on the real property interest that is senior to the
Mortgage Loan and (y) a proportionate amount of any lien that is in parity with
the Mortgage Loan (unless such other lien secures a Mortgage Loan that is
cross-collateralized with such Mortgage Loan, in which event the computation
described in clauses (a)(i) and (a)(ii) of this paragraph (xix) shall be made on
a pro rata basis in accordance with the fair market values of the Mortgaged
Properties securing such cross-collateralized Mortgage Loans); or (b)
substantially all the proceeds of such Mortgage Loan were used to acquire,
improve or protect the real property which served as the only security for such
Mortgage Loan (other than a recourse feature or other third party credit
enhancement within the meaning of Treasury Regulations Section
1.860G-2(a)(1)(ii)).

              (xx)Mortgage Loan Modifications. Any Mortgage Loan that was
"significantly modified" prior to the Closing Date so as to result in a taxable
exchange under Section 1001 of the Code either (a) was modified as a result of
the default or reasonably foreseeable default of such Mortgage Loan or (b)
satisfies the provisions of either clause (a)(i) of paragraph (xix)
(substituting the date of the last such modification for the date the Mortgage
Loan was originated) or clause (a)(ii) of paragraph (xix), including the proviso
thereto.

              (xxi) Advancement of Funds by the Seller. No holder of a Mortgage
Loan has advanced funds or induced, solicited or knowingly received any advance
of funds from a party other than the owner of the related Mortgaged Property,
directly or indirectly, for the payment of any amount required by such Mortgage
Loan.

              (xxii) No Mechanics' Liens. Each Mortgaged Property is free and
clear of any and all mechanics' and materialmen's liens that are prior or equal
to the lien of the related Mortgage, and no rights are outstanding that under
law could give rise to any such lien that would be prior or equal to the lien of
the related Mortgage except, in each case, for liens insured against by the
Title Policy referred to herein.

              (xxiii) Compliance with Usury Laws. Each Mortgage Loan complied
with all applicable usury laws in effect at its date of origination.

              (xxiv) Cross-collateralization. No Mortgage Loan is
cross-collateralized or cross-defaulted with any loan other than one or more
other Mortgage Loans.

              (xxv) Releases of Mortgaged Property. Except as described in the
next sentence, no Mortgage Note or Mortgage requires the mortgagee to release
all or any material portion of the related Mortgaged Property from the lien of
the related Mortgage except upon payment in full of all amounts due under the
related Mortgage Loan. The Mortgages relating to those Mortgage Loans identified
on Schedule II-A hereto require the mortgagee to grant releases of portions of
the related Mortgaged Properties upon (a) the satisfaction of certain legal and
underwriting requirements and (b) the payment of a release price set forth
therein and prepayment consideration in connection therewith.

              (xxvi) No Equity Participation or Contingent Interest. No Mortgage
Loan contains any equity participation by the lender or provides for negative
amortization or for any contingent or additional interest in the form of
participation in the cash flow of the related Mortgaged Property.

              (xxvii) No Material Default. To the Seller's best knowledge, there
exists no material default, breach, violation or event of acceleration (and no
event which, with the passage of time or the giving of notice, or both, would
constitute any of the foregoing) under the documents evidencing or securing the
Mortgage Loan, in any such case to the extent the same materially and adversely
affects the value of the Mortgage Loan and the related Mortgaged Property;
provided, however, that this representation and warranty does not address or
otherwise cover any default, breach, violation or event of acceleration that
specifically pertains to any matter otherwise covered by any other
representation and warranty made by the Seller in any of paragraphs (iii),
(vii), (xiv), (xv), (xvi), (xvii) and (xxii) of this Exhibit A.

              (xxviii) Inspections. The Seller (or if the Seller is not the
originator, the originator of the Mortgage Loan) has inspected or caused to be
inspected each Mortgaged Property in connection with the origination of the
related Mortgage Loan.

              (xxix) Local Law Compliance. Based on due diligence considered
reasonable by prudent commercial mortgage lenders in the lending area where the
Mortgaged Property is located, the improvements located on or forming part of
each Mortgaged Property comply with applicable zoning laws and ordinances, or
constitute a legal non-conforming use or structure or, if any such improvement
does not so comply, such non-compliance does not materially and adversely affect
the value of the related Mortgaged Property, such value as determined by the
appraisal performed at origination.

              (xxx) Junior Liens. Schedule B attached hereto lists all Mortgage
Loans that permit the related Mortgaged Property to be encumbered by any lien
junior to the lien of the related Mortgage and describes any related debt
service coverage or similar criteria needed to be satisfied to obtain such
junior lien. Except as otherwise set forth on Schedule B, the Seller has no
knowledge that any of the Mortgaged Properties is encumbered by any lien junior
to the lien of the related Mortgage.

              (xxxi) Actions Concerning Mortgage Loans. To the knowledge of the
Seller, there are no actions, suits or proceedings before any court,
administrative agency or arbitrator concerning any Mortgage Loan, Mortgagor or
related Mortgaged Property that might adversely affect title to the Mortgage
Loan or the validity or enforceability of the related Mortgage or that might
materially and adversely affect the value of the Mortgaged Property as security
for the Mortgage Loan or the use for which the premises were intended.

              (xxxii) Servicing. The servicing and collection practices used by
the Seller have been in all material respects legal, proper and prudent and have
met customary industry standards and no other person has been granted or
conveyed the right to service the Mortgage Loans or receive any consideration in
connection therewith.

              (xxxiii) Licenses and Permits. To the Seller's knowledge, based on
due diligence that it customarily performs in the origination of comparable
mortgage loans, as of the date of origination of each Mortgage Loan, the related
Mortgagor was in possession of all material licenses, permits and franchises
required by applicable law for the ownership and operation of the related
Mortgaged Property as it was then operated.

              (xxxiv) Collateral in Trust. The Mortgage Note for each Mortgage
Loan is not secured by any collateral (including any mortgage) that is not
included in the Trust.

              (xxxv) Single Purpose Entity. The Mortgagor on each Mortgage Loan
with a Cut-Off Date Principal Balance in excess of $20 million, was, as of the
origination of the Mortgage Loan, a Single Purpose Entity. For this purpose, a
"Single Purpose Entity" shall mean an entity, other than an individual, whose
organizational documents provide substantially to the effect that it was formed
or organized solely for the purpose of owning and operating one or more of the
Mortgaged Properties securing the Mortgage Loans and prohibit it from engaging
in any business unrelated to such Mortgaged Property or Properties, and whose
organizational documents further provide, or which entity represented in the
related Mortgage Loan documents, substantially to the effect that it does not
have any assets other than those related to its interest in and operation of
such Mortgaged Property or Properties, or any indebtedness other than as
permitted by the related Mortgage(s) or the other related Mortgage Loan
documents, that it has its own books and records and accounts separate and apart
from any other person, and that it holds itself out as a legal entity, separate
and apart from any other person.

              (xxxvi) Non-Recourse Exceptions. The Mortgage Loan documents for
each Mortgage Loan provide that such Mortgage Loan constitutes the non-recourse
obligations of the related obligors thereon except that either (i) such
provision does not apply in the case of fraud by the Mortgagor or (ii) such
documents provide that the Mortgagor shall be liable to the holder of the
Mortgage Loan for losses incurred as a result of fraud by the Mortgagor.

              (xxxvii) Loan Underwriting. Each Mortgage Loan complies, in all
material respects, with all of the terms, conditions and requirements of the
Seller's underwriting standards in effect at the time of origination of such
Mortgage Loan.

<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 Morgan Stanley Dean
Witter Mortgage Capital Inc. ("MSDWMC");

              2. that MSDWMC 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 MSDWMC, after having conducted a diligent
investigation of its records and files, has been unable to locate the following
original note and believes that said original note has been lost, misfiled,
misplaced or destroyed due to a clerical error:

            a note in the original sum of $___________ made by _______________,
            to ______________________, under date of _______________________
            (the "Note");

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

            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 MSDWMC; and

            7. upon assignment of the Note by MSDWMC 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 2000-C1 (the "Trustee") (which assignment may, at the
discretion of the Depositor, be made directly by MSDWMC to the Trustee) MSDWMC
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 MSDWMC or the Depositor's failure to
deliver said original Note to the Trustee.

                                 MORGAN STANLEY DEAN WITTER MORTGAGE CAPITAL
                                      INC.

                                 By:__________________________________________
                                    Authorized Signatory

Sworn to before me this

           day of July, 2000

<PAGE>

                                    EXHIBIT C

                                     FORM OF

                          ASSIGNMENT OF MORTGAGE(S) AND
                 ASSIGNMENT OF ASSIGNMENT OF LESSOR'S INTERESTS
                          IN LEASES, RENTS AND PROFITS

            KNOW ALL MEN BY THESE PRESENTS:

            THAT, as of ___________________ 2000 Morgan Stanley Dean Witter
Mortgage Capital Inc., a Delaware Corporation, whose address is 1585 Broadway,
New York, New York 10036 ("ASSIGNOR") in consideration of ten and 00/100
($10.00) dollars and other good and valuable consideration, paid by Wells Fargo
Bank Minnesota, N.A., as trustee for Credit Suisse First Boston Mortgage
Securities Corp. Commercial Mortgage Pass-Through Certificates, Series 2000-C1,
whose address is 3 New York Plaza, 15th Floor, New York, New York 10004
("ASSIGNEE"), receipt of which is acknowledged by ASSIGNOR, hereby sells,
assigns, transfers, sets over and conveys unto the ASSIGNEE certain mortgage(s)
and assignments of leases, rents and profits and other collateral documents as
follows:

              See Schedules "A-1" and "A-2" attached hereto and incorporated
herein by this reference.

            TOGETHER with the note(s), debt(s) and claim(s) secured by said
mortgage(s) and the covenants contained in said mortgage(s), together with all
amendments, supplements and modifications thereto and all liens, financing
statements, guaranties and security interests securing the payment of such
notes, including, without limitation, any other documents recorded in the real
property records of the jurisdiction in which the real property covered by the
mortgage(s) is located with respect to such notes, and any other documents,
agreements, instruments or property relating to such loan(s) and all right,
title, interest, claims, demands, causes of action and judgments securing or
relating to such loan(s); TO HAVE AND TO HOLD the same unto the ASSIGNEE and to
the successors, legal representatives and assigns of the ASSIGNEE forever.

            THIS ASSIGNMENT is made without recourse or representation or
warranty of any kind or nature, express or implied except as expressly set forth
in that certain Mortgage Loan Purchase Agreement, dated as of July 11, 2000
between ASSIGNOR and Credit Suisse First Boston Mortgage Securities Corp.

<PAGE>

            IN WITNESS WHEREOF, the ASSIGNOR has duly executed this Assignment
the __ day of __________ 2000.

IN PRESENCE OF:

                                 By:__________________________________________
                                      Name:

                                     Title:

<PAGE>

STATE OF                )
                        )  ss.:
COUNTY OF               )

              On this day of , 2000, before me the undersigned, a NOTARY PUBLIC
OF , personally appeared _______________, as _______________ of Morgan Stanley
Dean Witter Mortgage Capital Inc., a Delaware corporation, who, I am satisfied,
was the maker of the foregoing instrument and who then stated and acknowledged
to me that, as such officer and maker (1) he was authorized to execute the
foregoing instrument on behalf of said corporation and (2) he executed said
instrument as the act and deed of said corporation.

              IN TESTIMONY WHEREOF, I have hereunto set my hand and affixed my
official seal at my office in the day and year last above written.

                                 Signature____________________________________
                                 Print Name___________________________________
                                 Residing at__________________________________

                                             A NOTARY PUBLIC OF_______________

[AFFIX SEAL]                      My Commission expires on____________________

<PAGE>

                             ASSIGNMENT OF MORTGAGE

                                       AND

                 ASSIGNMENT OF ASSIGNMENT OF LESSOR'S INTERESTS
                          IN LEASES, RENTS AND PROFITS

                MORGAN STANLEY DEAN WITTER MORTGAGE CAPITAL INC.
                                       TO

                  WELLS FARGO BANK MINNESOTA, N.A., AS TRUSTEE

                              RECORD AND RETURN TO:

<PAGE>

                                    Exhibit D

                    Form of Seller's In-House Counsel Opinion

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