MORTGAGE LOAN PURCHASE AGREEMENT

                                                                    EXHIBIT 10.4

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                        MORTGAGE LOAN PURCHASE AGREEMENT

                                      between

                      PRINCIPAL COMMERCIAL FUNDING II, LLC
                                    as Seller

                                       and

                BEAR STEARNS COMMERCIAL MORTGAGE SECURITIES INC.
                                   as Purchaser

                             Dated October 11, 2007

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                                TABLE OF CONTENTS

1.   AGREEMENT TO PURCHASE ...................................................

2.   CONVEYANCE OF MORTGAGE LOANS ............................................

3.   EXAMINATION OF MORTGAGE FILES AND DUE DILIGENCE REVIEW ..................

4.   REPRESENTATIONS, WARRANTIES AND COVENANTS OF SELLER AND PURCHASER .......

5.   REMEDIES UPON BREACH OF REPRESENTATIONS AND WARRANTIES MADE BY SELLER ...

6.   CLOSING .................................................................

7.   CLOSING DOCUMENTS .......................................................

8.   COSTS ...................................................................

9.   NOTICES .................................................................

10. SEVERABILITY OF PROVISIONS ..............................................

11. FURTHER ASSURANCES ......................................................

12. SURVIVAL ................................................................

13. GOVERNING LAW ...........................................................

14. BENEFITS OF MORTGAGE LOAN PURCHASE AGREEMENT ............................

15. MISCELLANEOUS ...........................................................

16. ENTIRE AGREEMENT ........................................................

Exhibit 1    Mortgage Loan Schedule

Exhibit 2    Representations and Warranties

Exhibit 3    Bill of Sale

Exhibit 4    Power of Attorney

                             Index of Defined Terms

Affected Loan(s)..................           Mortgage File......................
Agreement.........................           Mortgage Loan Schedule.............
Certificate Purchase Agreement....           Mortgage Loans.....................
Certificates......................           Officer's Certificate..............
Closing Date......................           Other Mortgage Loans...............
Collateral Information............           Pooling and Servicing Agreement....
Crossed Mortgage Loans............           Private Certificates...............
Defective Mortgage Loan...........           Prospectus Supplement..............
Final Judicial Determination......           Public Certificates................
Indemnification Agreement.........           Purchaser..........................
Initial Purchasers................           Seller.............................
Master Servicer...................           Special Servicer...................
Material Breach...................           Trust..............................
Material Document Defect..........           Trustee............................
Memorandum........................           Underwriters.......................
MERS..............................           Underwriting Agreement.............

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                        MORTGAGE LOAN PURCHASE AGREEMENT
                                (PRINCIPAL LOANS)

Mortgage Loan Purchase Agreement ("Agreement"), dated October 11, 2007, between
Principal Commercial Funding II, LLC ("Seller") and Bear Stearns Commercial
Mortgage Securities Inc. ("Purchaser").

Seller agrees to sell and Purchaser agrees to purchase certain mortgage loans
listed on Exhibit 1 hereto (the "Mortgage Loans") as described herein. Purchaser
will convey the Mortgage Loans to a trust (the "Trust") created pursuant to a
Pooling and Servicing Agreement (the "Pooling and Servicing Agreement"), to be
dated as of October 1, 2007 between Purchaser, as depositor, Wells Fargo Bank,
National Association, as master servicer (the "Master Servicer"), Centerline
Servicing Inc., as special servicer (the "Special Servicer"), LaSalle Bank
National Association, as trustee and custodian (the "Trustee") and Wells Fargo
Bank, National Association, as paying agent, certificate registrar and
authenticating agent. In exchange for the Mortgage Loans and certain other
mortgage loans to be purchased by Purchaser (collectively the "Other Mortgage
Loans"), the Trust will issue to the Depositor pass-through certificates to be
known as Bear Stearns Commercial Mortgage Securities Inc., Commercial Mortgage
Pass-Through Certificates, Series 2007-TOP28 (the "Certificates"). The
Certificates will be issued pursuant to the Pooling and Servicing Agreement.

Capitalized terms used herein but not defined herein shall have the meanings
assigned to them in the Pooling and Servicing Agreement.

The Class A-1, Class A-2, Class A-3, Class A-AB, Class A-4, Class A-1A, Class
A-M and Class A-J Certificates (the "Public Certificates") will be sold by
Purchaser to Bear, Stearns & Co. Inc. and Morgan Stanley & Co. Incorporated (the
"Underwriters"), pursuant to an Underwriting Agreement, between Purchaser and
the Underwriters, dated October 11, 2007 (the "Underwriting Agreement"), and the
Class X-1, Class X-2, Class B, Class C, Class D, Class E, Class F, Class G,
Class H, Class J, Class K, Class L, Class M, Class N, Class O, Class P, Class
R-I, Class R-II, and Class R-III Certificates (the "Private Certificates") will
be sold by Purchaser to Bear, Stearns & Co. Inc. and Morgan Stanley & Co.
Incorporated (the "Initial Purchasers") pursuant to a Certificate Purchase
Agreement, between Purchaser and the Initial Purchasers, dated October 11, 2007
(the "Certificate Purchase Agreement"). The Underwriters will offer the Public
Certificates for sale publicly pursuant to a Prospectus dated May 29, 2007, as
supplemented by a Prospectus Supplement dated October 11, 2007 (together, the
"Prospectus Supplement") and the Initial Purchasers will offer the Private
Certificates for sale in transactions exempt from the registration requirements
of the Securities Act of 1933 pursuant to a Private Placement Memorandum dated
October 11, 2007 (the "Memorandum").

In consideration of the mutual agreements contained herein, Seller and Purchaser
hereby agree as follows:

1. AGREEMENT TO PURCHASE.

1.1 Seller agrees to sell, and Purchaser agrees to purchase, on a servicing
released basis, the Mortgage Loans identified on the schedule (the "Mortgage
Loan Schedule") annexed hereto as Exhibit 1, as such schedule may be amended to
reflect the actual Mortgage Loans accepted by Purchaser pursuant to the terms
hereof. The Cut-Off Date with respect to the Mortgage Loans is October 1, 2007.
The Mortgage Loans will have an aggregate principal balance as of the close of
business on the Cut-Off Date, after giving effect to any payments due on or
before such date, whether or not received, of $228,309,785. The sale of the
Mortgage Loans shall take place on October 25, 2007 or such other date as shall
be mutually acceptable to the parties hereto (the "Closing Date"). The purchase
price to be paid by Purchaser for the Mortgage Loans shall equal the amount set
forth as such purchase price in a letter dated as of the date hereof (the
"Purchase Price Side Letter"), between the parties to this Agreement and entered
into in connection with this Agreement and the issuance of the Certificates,
which purchase price excludes accrued interest and applicable deal expenses. The
purchase price shall be paid to Seller by wire transfer in immediately available
funds on the Closing Date.

1.2 On the Closing Date, Purchaser will assign to the Trustee pursuant to the
Pooling and Servicing Agreement all of its right, title and interest in and to
the Mortgage Loans and its rights under this Agreement (to the extent set forth
in Section 14 hereof), and the Trustee shall succeed to such right, title and
interest in and to the Mortgage Loans and Purchaser's rights under this
Agreement (to the extent set forth in Section 14 hereof).

2. CONVEYANCE OF MORTGAGE LOANS.

2.1 Effective as of the Closing Date, subject only to receipt of the
consideration referred to in Section 1 hereof and the satisfaction of the
conditions specified in Sections 6 and 7 hereof, Seller does hereby transfer,
assign, set over and otherwise convey to Purchaser, without recourse, except as
specifically provided herein all the right, title and interest of Seller, with
the understanding that a Servicing Rights Purchase and Sale Agreement, dated
October 1, 2007, will be executed by Seller and the Master Servicer, in and to
the Mortgage Loans identified on the Mortgage Loan Schedule as of the Closing
Date. The Mortgage Loan Schedule, as it may be amended from time to time on or
prior to the Closing Date, shall conform to the requirements of this Agreement
and the Pooling and Servicing Agreement. In connection with such transfer and
assignment, Seller shall deliver to or on behalf of the Trustee, on behalf of
Purchaser, on or prior to the Closing Date, the Mortgage Note (as described in
clause 2.2.1 hereof) for each Mortgage Loan and on or prior to the fifth
Business Day after the Closing Date, five limited powers of attorney
substantially in the form attached hereto as Exhibit 4 in favor of the Trustee
and the Special Servicer to empower the Trustee and, in the event of the failure
or incapacity of the Trustee, the Special Servicer, to submit for recording, at
the expense of Seller, any mortgage loan documents required to be recorded as
described in the Pooling and Servicing Agreement and any intervening assignments
with evidence of recording thereon that are required to be included in the
Mortgage Files (so long as original counterparts have previously been delivered
to the Trustee). Seller agrees to reasonably cooperate with the Trustee and the
Special Servicer in connection with any additional powers of attorney or
revisions thereto that are requested by such parties for purposes of such
recordation. The parties hereto agree that no such power of attorney shall be
used with respect to any Mortgage Loan by or under authorization by any party
hereto except to the extent that the absence of a document described in the
second preceding sentence with respect to such Mortgage Loan remains unremedied
as of the earlier of (i) the date that is 180 days following the delivery of
notice of such absence to Seller, but in no event earlier than 18 months from
the Closing Date, and (ii) the date (if any) on which such Mortgage Loan becomes
a Specially Serviced Mortgage Loan. The Trustee shall submit such documents, at
Seller's expense, after the periods set forth above, provided, however, the
Trustee shall not submit such assignments for recording if Seller produces
evidence that it has sent any such assignment for recording and certifies that
Seller is awaiting its return from the applicable recording office. In addition,
not later than the 30th day following the Closing Date, Seller shall deliver to
or on behalf of the Trustee each of the remaining documents or instruments
specified in Section 2.2 hereof (with such exceptions as are permitted by this
Section 2) with respect to each Mortgage Loan (each, a "Mortgage File"). (Seller
acknowledges that the term "without recourse" does not modify the duties of
Seller under Section 5 hereof.)

2.2 All Mortgage Files, or portions thereof, delivered prior to the Closing Date
are to be held by or on behalf of the Trustee in escrow on behalf of Seller at
all times prior to the Closing Date. The Mortgage Files shall be released from
escrow upon closing of the sale of the Mortgage Loans and payments of the
purchase price therefor as contemplated hereby. The Mortgage File for each
Mortgage Loan shall contain the following documents:

      2.2.1 The original Mortgage Note bearing all intervening endorsements,
endorsed "Pay to the order of LaSalle Bank National Association, as Trustee for
Bear Stearns Commercial Mortgage Securities Inc., Commercial Mortgage
Pass-Through Certificates, Series 2007-TOP28, without recourse, representation
or warranty" or if the original Mortgage Note is not included therein, then a
lost note affidavit, with a copy of the Mortgage Note attached thereto;

      2.2.2 The original Mortgage, with evidence of recording thereon, and, if
the Mortgage was executed pursuant to a power of attorney, a certified true copy
of the power of attorney certified by the public recorder's office, with
evidence of recording thereon (if recording is customary in the jurisdiction in
which such power of attorney was executed), or certified by a title insurance
company or escrow company to be a true copy thereof; provided that if such
original Mortgage cannot be delivered with evidence of recording thereon on or
prior to the 45th day following the Closing Date because of a delay caused by
the public recording office where such original Mortgage has been delivered for
recordation or because such original Mortgage has been lost, Seller shall
deliver or cause to be delivered to the Trustee a true and correct copy of such
Mortgage, together with (i) in the case of a delay caused by the public
recording office, an Officer's Certificate (as defined below) of Seller stating
that such original Mortgage has been sent to the appropriate public recording
official for recordation or (ii) in the case of an original Mortgage that has
been lost after recordation, a certification by the appropriate county recording
office where such Mortgage is recorded that such copy is a true and complete
copy of the original recorded Mortgage;

      2.2.3 The originals of all agreements modifying a Money Term or other
material modification, consolidation and extension agreements, if any, with
evidence of recording thereon, or if any such original modification,
consolidation or extension agreement has been delivered to the appropriate
recording office for recordation and either has not yet been returned on or
prior to the 45th day following the Closing Date with evidence of recordation
thereon or has been lost after recordation, a true copy of such modification,
consolidation or extension certified by Seller together with (i) in the case of
a delay caused by the public recording office, an Officer's Certificate of
Seller stating that such original modification, consolidation or extension
agreement has been dispatched or sent to the appropriate public recording
official for recordation or (ii) in the case of an original modification,
consolidation or extension agreement that has been lost after recordation, a
certification by the appropriate county recording office where such document is
recorded that such copy is a true and complete copy of the original recorded
modification, consolidation or extension agreement, and the originals of all
assumption agreements, if any;

      2.2.4 An original Assignment of Mortgage for each Mortgage Loan, in form
and substance acceptable for recording, signed by the holder of record in favor
of "LaSalle Bank National Association, as Trustee for Bear Stearns Commercial
Mortgage Securities Inc., Commercial Mortgage Pass-Through Certificates, Series
2007-TOP28," provided, if the related Mortgage has been recorded in the name of
Mortgage Electronic Registration Systems, Inc. ("MERS") or its designee, no such
assignments will be required to be submitted for recording or filing and
instead, Seller shall take all actions as are necessary to cause the Trustee to
be shown as the owner of the related Mortgage on the record of MERS for purposes
of the system of recording transfers of beneficial ownership of mortgages
maintained by MERS and shall deliver to the Master Servicer and the Special
Servicer evidence confirming that the Trustee is shown as the owner on the
record of MERS;

      2.2.5 Originals of all intervening assignments of Mortgage (except with
respect to any Mortgage that has been recorded in the name of MERS or its
designees), if any, with evidence of recording thereon or, if such original
assignments of Mortgage have been delivered to the appropriate recorder's office
for recordation, certified true copies of such assignments of Mortgage certified
by Seller, or in the case of an original blanket intervening assignment of
Mortgage retained by Seller, a copy thereof certified by Seller or, if any
original intervening assignment of Mortgage has not yet been returned on or
prior to the 45th day following the Closing Date from the applicable recording
office or has been lost, a true and correct copy thereof, together with (i) in
the case of a delay caused by the public recording office, an Officer's
Certificate of Seller stating that such original intervening assignment of
Mortgage has been sent to the appropriate public recording official for
recordation or (ii) in the case of an original intervening Assignment of
Mortgage that has been lost after recordation, a certification by the
appropriate county recording office where such assignment is recorded that such
copy is a true and complete copy of the original recorded intervening Assignment
of Mortgage;

      2.2.6 If the related Assignment of Leases is separate from the Mortgage,
the original of such Assignment of Leases with evidence of recording thereon or,
if such Assignment of Leases has not been returned on or prior to the 45th day
following the Closing Date from the applicable public recording office, a copy
of such Assignment of Leases certified by Seller to be a true and complete copy
of the original Assignment of Leases submitted for recording, together with (i)
an original of each assignment of such Assignment of Leases with evidence of
recording thereon and showing a complete recorded chain of assignment from the
named assignee to the holder of record, and if any such assignment of such
Assignment of Leases has not been returned from the applicable public recording
office, a copy of such assignment certified by Seller to be a true and complete
copy of the original assignment submitted for recording, and (ii) an original
assignment of such Assignment of Leases, in recordable form, signed by the
holder of record in favor of "LaSalle Bank National Association, as Trustee for
Bear Stearns Commercial Mortgage Securities Inc., Commercial Mortgage
Pass-Through Certificates, Series 2007-TOP28," which assignment may be effected
in the related Assignment of Mortgage, provided, if the related Mortgage has
been recorded in the name of MERS or its designee, no assignment of Assignment
of Leases in favor of the Trustee will be required to be recorded or delivered
and instead, Seller shall take all actions as are necessary to cause the Trustee
to be shown as the owner of the related Mortgage on the record of MERS for
purposes of the system of recording transfers of beneficial ownership of
mortgages maintained by MERS and shall deliver to the Master Servicer and the
Special Servicer evidence confirming that the Trustee is shown as the owner on
the record of MERS;

      2.2.7 The original of each guaranty, if any, constituting additional
security for the repayment of such Mortgage Loan;

      2.2.8 The original Title Insurance Policy, or in the event such original
Title Insurance Policy has not been issued, an original binder or actual title
commitment or a copy thereof certified by the title company with the original
Title Insurance Policy to follow within 180 days of the Closing Date or a
preliminary title report binding on the title company with an original Title
Insurance Policy to follow within 180 days of the Closing Date;

      2.2.9 (A) Uniform Commercial Code ("UCC") financing statements (together
with all assignments thereof) and (B) UCC-2 or UCC-3 financing statements to the
Trustee executed and delivered in connection with the Mortgage Loan, provided,
if the related Mortgage has been recorded in the name of MERS or its designee,
no such financing statements will be required to be recorded or delivered and
instead, Seller shall take all actions as are necessary to cause the Trustee to
be shown as the owner of the related Mortgage on the record of MERS for purposes
of the system of recording transfers of beneficial ownership of mortgages
maintained by MERS and shall deliver to the Master Servicer and the Special
Servicer evidence confirming that the Trustee is shown as the owner on the
record of MERS;

      2.2.10 Copies of the related ground lease(s), if any, to any Mortgage Loan
where the Mortgagor is the lessee under such ground lease and there is a lien in
favor of the mortgagee in such lease;

      2.2.11 Copies of any loan agreements, lock-box agreements and
intercreditor agreements (including, without limitation, any Intercreditor
Agreement, and a copy (that is, not the original) of the mortgage note
evidencing the related B Note), if any, related to any Mortgage Loan;

      2.2.12 Either (A) the original of each letter of credit, if any,
constituting additional collateral for such Mortgage Loan, which shall be
assigned and delivered to the Trustee on behalf of the Trust with a copy to be
held by the Primary Servicer (or the Master Servicer), and applied, drawn,
reduced or released in accordance with documents evidencing or securing the
applicable Mortgage Loan, the Pooling and Servicing Agreement and the Primary
Servicing Agreement or (B) the original of each letter of credit, if any,
constituting additional collateral for such Mortgage Loan, which shall be held
by the Primary Servicer (or the Master Servicer) on behalf of the Trustee, with
a copy to be held by the Trustee, and applied, drawn, reduced or released in
accordance with documents evidencing or securing the applicable Mortgage Loan,
the Pooling and Servicing Agreement and the Primary Servicing Agreement (it
being understood that Seller has agreed (a) that the proceeds of such letter of
credit belong to the Trust, (b) to notify, on or before the Closing Date, the
bank issuing the letter of credit that the letter of credit and the proceeds
thereof belong to the Trust, and to use reasonable efforts to obtain within 30
days (but in any event to obtain within 90 days) following the Closing Date, an
acknowledgement thereof by the bank (with a copy of such acknowledgement to be
sent to the Trustee) or a reissued letter of credit and (c) to indemnify the
Trust for any liabilities, charges, costs, fees or other expenses accruing from
the failure of Seller to assign all rights to the letter of credit hereunder
including the right and power to draw on the letter of credit). In the case of
clause (B) above, any letter of credit held by the Primary Servicer (or Master
Servicer) shall be held in its capacity as agent of the Trust, and if the
Primary Servicer (or Master Servicer) sells its rights to service the applicable
Mortgage Loan, the Primary Servicer (or Master Servicer) has agreed to assign
the applicable letter of credit to the Trust or at the direction of the Special
Servicer to such party as the Special Servicer may instruct, in each case, at
the expense of the Primary Servicer (or Master Servicer). The Primary Servicer
(or Master Servicer) has agreed to indemnify the Trust for any loss caused by
the ineffectiveness of such assignment;

      2.2.13 The original or a copy of the environmental indemnity agreement, if
any, related to any Mortgage Loan;

      2.2.14 Third-party management agreements for all hotels and for such other
Mortgaged Properties securing Mortgage Loans with a Cut-Off Date principal
balance equal to or greater than $20,000,000;

      2.2.15 Any Environmental Insurance Policy; and

      2.2.16 Any affidavit and indemnification agreement.

The original of each letter of credit referred to in clause 2.2.12 above shall
be delivered to the Primary Servicer, the Master Servicer or the Trustee (as the
case may be) within 45 days of the Closing Date. In addition, a copy of any
ground lease shall be delivered to the Primary Servicer within 30 days of the
Closing Date. Any failure to deliver any ground lease shall constitute a
document defect.

"Officer's Certificate" shall mean a certificate signed by one or more of the
Chairman of the Board, any Vice Chairman, the President, any Senior Vice
President, any Vice President, any Assistant Vice President, any Treasurer or
any Assistant Treasurer.

2.3 The Assignments of Mortgage and assignment of Assignment of Leases referred
to in Sections 2.2.4 and 2.2.6 hereof may be in the form of a single instrument
assigning the Mortgage and the Assignment of Leases to the extent permitted by
applicable law. To avoid the unnecessary expense and administrative
inconvenience associated with the execution and recording or filing of multiple
assignments of mortgages, assignments of leases (to the extent separate from the
mortgages) and assignments of UCC financing statements, Seller shall execute, in
accordance with Section 2.6 hereof, the assignments of mortgages, the
assignments of leases (to the extent separate from the mortgages) and the
assignments of UCC financing statements relating to the Mortgage Loans naming
the Trustee on behalf of the Certificateholders as assignee. Notwithstanding the
fact that such assignments of mortgages, assignments of leases (to the extent
separate from the assignments of mortgages) and assignments of UCC financing
statements shall name the Trustee on behalf of the Certificateholders as the
assignee, the parties hereto acknowledge and agree that the Mortgage Loans shall
for all purposes be deemed to have been transferred from Seller to Purchaser and
from Purchaser to the Trustee on behalf of the Certificateholders.

2.4 If Seller cannot deliver, or cause to be delivered, as to any Mortgage Loan,
any of the documents and/or instruments referred to in Sections 2.2.2, 2.2.3,
2.2.5 or 2.2.6 hereof, with evidence of recording thereon, solely because of a
delay caused by the public recording office where such document or instrument
has been delivered for recordation within such 45 day period, but Seller
delivers a photocopy thereof (certified by the appropriate county recorder's
office to be a true and complete copy of the original thereof submitted for
recording), to the Trustee within such 45 day period, Seller shall then deliver
within 90 days after the Closing Date the recorded document (or within such
longer period after the Closing Date as the Trustee may consent to, which
consent shall not be unreasonably withheld so long as Seller is, as certified in
writing to the Trustee no less often than monthly, in good faith attempting to
obtain from the appropriate county recorder's office such original or
photocopy).

2.5 The Trustee, as assignee or transferee of Purchaser, shall be entitled to
all scheduled payments of principal due on the Mortgage Loans after the Cut-Off
Date, all other payments of principal collected after the Cut-Off Date (other
than scheduled payments of principal due on or before the Cut-Off Date), and all
payments of interest on the Mortgage Loans allocable to the period commencing on
the Cut-Off Date. All scheduled payments of principal and interest due on or
before the Cut-Off Date and collected after the Cut-Off Date shall belong to
Seller.

2.6 Within 45 days following the Closing Date, Seller shall deliver and
Purchaser, the Trustee or the agents of either may submit or cause to be
submitted for recordation at the expense of Seller, in the appropriate public
office for real property records, each assignment referred to in clauses 2.2.4
and 2.2.6(ii) above. Within 90 days following the Closing Date, Seller shall
deliver and Purchaser, the Trustee or the agents of either may submit or cause
to be submitted for filing, at the expense of Seller, in the appropriate public
office for UCC financing statements, the assignment referred to in clause 2.2.9.
If any such document or instrument is lost or returned unrecorded or unfiled, as
the case may be, because of a defect therein, Seller shall prepare a substitute
therefor or cure such defect, and Seller shall, at its own expense (except in
the case of a document or instrument that is lost by the Trustee), record or
file, as the case may be, and deliver such document or instrument in accordance
with this Section 2.

2.7 Documents that are in the possession of Seller, its agents or its
subcontractors that relate to the Mortgage Loans and that are not required to be
delivered to the Trustee shall be shipped by Seller to or at the direction of
the Master Servicer, on behalf of Purchaser, on or prior to the 75th day after
the Closing Date, in accordance with Section 3.1 of the Primary Servicing
Agreement, if applicable.

2.8 The documents required to be delivered to the Master Servicer (or in the
alternative, the Primary Servicer) shall include, to the extent required to be
(and actually) delivered to Seller pursuant to the applicable Mortgage Loan
documents, copies of the following items: the Mortgage Note, any Mortgage, the
Assignment of Leases and the Assignment of Mortgage, any guaranty/indemnity
agreement, any loan agreement, the insurance policies or certificates, as
applicable, the property inspection reports, any financial statements on the
property, any escrow analysis, the tax bills, the Appraisal, the environmental
report, the engineering report, the asset summary, financial information on the
Borrower/sponsor and any guarantors, any letters of credit, any intercreditor
agreement and any Environmental Insurance Policies. Delivery of any of the
foregoing documents to the Primary Servicer shall be deemed a delivery to the
Master Servicer and satisfy Seller's obligations under this subparagraph.

2.9 Upon the sale of the Mortgage Loans by Seller to Purchaser pursuant to this
Agreement, the ownership of each Mortgage Note, Mortgage and the other contents
of the related Mortgage File shall be vested in Purchaser and its assigns, and
the ownership of all records and documents with respect to the related Mortgage
Loan prepared by or that come into the possession of Seller shall immediately
vest in Purchaser and its assigns, and shall be delivered promptly by Seller to
or on behalf of either the Trustee or the Master Servicer as set forth herein,
subject to the requirements of the Primary Servicing Agreement. Seller's and
Purchaser's records shall reflect the transfer of each Mortgage Loan from Seller
to Purchaser and its assigns as a sale.

2.10 It is the express intent of the parties hereto that the conveyance of the
Mortgage Loans and related property to Purchaser by Seller as provided in this
Section 2 be, and be construed as, an absolute sale of the Mortgage Loans and
related property. It is, further, not the intention of the parties that such
conveyance be deemed a pledge of the Mortgage Loans and related property by
Seller to Purchaser to secure a debt or other obligation of Seller. However, in
the event that, notwithstanding the intent of the parties, the Mortgage Loans or
any related property are held to be the property of Seller, or if for any other
reason this Agreement is held or deemed to create a security interest in the
Mortgage Loans or any related property, then:

      2.10.1 this Agreement shall be deemed to be a security agreement; and

      2.10.2 the conveyance provided for in this Section 2 shall be deemed to be
a grant by Seller to Purchaser of a security interest in all of Seller's right,
title, and interest, whether now owned or hereafter acquired, in and to:

            A. All accounts, 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 following property: the
      Mortgage Loans identified on the Mortgage Loan Schedule, including the
      related Mortgage Notes, Mortgages, security agreements, and title, hazard
      and other insurance policies, all distributions with respect thereto
      payable after the Cut-Off Date, all substitute or replacement Mortgage
      Loans and all distributions with respect thereto, and the Mortgage Files;

            B. All accounts, general intangibles, chattel paper, instruments,
      documents, money, deposit accounts, certificates of deposit, goods,
      letters of credit, advices of credit, investment property and other rights
      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 clause (A) above (including any accrued discount realized on
      liquidation of any investment purchased at a discount); and

            C. All cash and non-cash proceeds of the collateral described in
      clauses (A) and (B) above.

2.11 The possession by Purchaser or its designee 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 for
purposes of perfecting the security interest pursuant to the UCC (including,
without limitation, Section 9-313 thereof) as in force in the relevant
jurisdiction. Notwithstanding the foregoing, Seller makes no representation or
warranty as to the perfection of any such security interest.

2.12 Notifications to Persons holding such property, and acknowledgments,
receipts, or confirmations from persons holding such property, shall be deemed
to be notifications to, or acknowledgments, receipts or confirmations from,
securities intermediaries, bailees or agents of, or Persons holding for,
Purchaser or its designee, as applicable, for the purpose of perfecting such
security interest under applicable law.

2.13 The Seller hereby agrees to provide the Purchaser with prompt notice of any
information it receives which indicates that the transfer of each Mortgage Loan
from the Seller to the Purchaser may not be treated as a sale. The Seller shall,
to the extent consistent with this Agreement, take such reasonable actions as
may be necessary to ensure that, if this Agreement were deemed to create a
security interest in the property described above, such security interest would
be deemed to be a perfected security interest of first priority under applicable
law and will be maintained as such throughout the term of the Agreement. In such
case, the Seller hereby authorizes the Master Servicer, the Trustee and the
Custodian to file all filings necessary to maintain the effectiveness of any
original filings necessary under the UCC as in effect in any jurisdiction to
perfect such security interest in such property. In connection herewith, the
Purchaser shall have all of the rights and remedies of a secured party and
creditor under the UCC as in force in the relevant jurisdiction.

2.14 Notwithstanding anything to the contrary contained herein, and subject to
Section 2.1 hereof, Purchaser shall not be required to purchase any Mortgage
Loan as to which any Mortgage Note (endorsed as described in clause 2.2.1)
required to be delivered to or on behalf of the Trustee or the Master Servicer
pursuant to this Section 2 on or before the Closing Date is not so delivered, or
is not properly executed or is defective on its face, and Purchaser's acceptance
of the related Mortgage Loan on the Closing Date shall in no way constitute a
waiver of such omission or defect or of Purchaser's or its successors' and
assigns' rights in respect thereof pursuant to Section 5 hereof.

3. EXAMINATION OF MORTGAGE FILES AND DUE DILIGENCE REVIEW.

3.1 Seller shall (i) deliver to Purchaser on or before the Closing Date a
diskette acceptable to Purchaser that contains such information about the
Mortgage Loans as may be reasonably requested by Purchaser, (ii) deliver to
Purchaser investor files (collectively the "Collateral Information") with
respect to the assets proposed to be included in the Mortgage Pool and made
available at Purchaser's headquarters in New York, and (iii) otherwise cooperate
fully with Purchaser in its examination of the credit files, underwriting
documentation and Mortgage Files for the Mortgage Loans and its due diligence
review of the Mortgage Loans. The fact that Purchaser has conducted or has
failed to conduct any partial or complete examination of the credit files,
underwriting documentation or Mortgage Files for the Mortgage Loans shall not
affect the right of Purchaser or the Trustee to cause Seller to cure any
Material Document Defect or Material Breach (each as defined below), or to
repurchase or replace the defective Mortgage Loans pursuant to Section 5 hereof.

3.2 On or prior to the Closing Date, Seller shall allow representatives of any
of Purchaser, each Underwriter, each Initial Purchaser, the Trustee, the Special
Servicer and each Rating Agency to examine and audit all books, records and
files pertaining to the Mortgage Loans, Seller's underwriting procedures and
Seller's ability to perform or observe all of the terms, covenants and
conditions of this Agreement. Such examinations and audits shall take place at
one or more offices of Seller during normal business hours and shall not be
conducted in a manner that is disruptive to Seller's normal business operations
upon reasonable prior advance notice. In the course of such examinations and
audits, Seller will make available to such representatives of any of Purchaser,
each Underwriter, each Initial Purchaser, the Trustee, the Special Servicer and
each Rating Agency reasonably adequate facilities, as well as the assistance of
a sufficient number of knowledgeable and responsible individuals who are
familiar with the Mortgage Loans and the terms of this Agreement, and Seller
shall cooperate fully with any such examination and audit in all material
respects. On or prior to the Closing Date, Seller shall provide Purchaser with
all material information regarding Seller's financial condition and access to
knowledgeable financial or accounting officers for the purpose of answering
questions with respect to Seller's financial condition, financial statements as
provided to Purchaser or other developments affecting Seller's ability to
consummate the transactions contemplated hereby or otherwise affecting Seller in
any material respect. Within 45 days after the Closing Date, Seller shall
provide the Master Servicer or Primary Servicer, if applicable, with any
additional information identified by the Master Servicer or Primary Servicer, if
applicable, as necessary to complete the CMSA Property File, to the extent that
such information is available.

3.3 Purchaser may exercise any of its rights hereunder through one or more
designees or agents, provided Purchaser has provided Seller with prior notice of
the identity of such designee or agent.

3.4 Purchaser shall keep confidential any information regarding Seller and the
Mortgage Loans that has been delivered into Purchaser's possession and that is
not otherwise publicly available; provided, however, that such information shall
not be kept confidential (and the right to require confidentiality under any
confidentiality agreement is hereby waived) to the extent such information is
required to be included in the Free Writing Prospectus, the Memorandum or the
Prospectus Supplement or Purchaser is required by law or court order to disclose
such information. If Purchaser is required to disclose in the Free Writing
Prospectus, the Memorandum or the Prospectus Supplement confidential information
regarding Seller as described in the preceding sentence, Purchaser shall provide
to Seller a copy of the proposed form of such disclosure prior to making such
disclosure and Seller shall promptly, and in any event within two Business Days,
notify Purchaser of any inaccuracies therein, in which case Purchaser shall
modify such form in a manner that corrects such inaccuracies. If Purchaser is
required by law or court order to disclose confidential information regarding
Seller as described in the second preceding sentence, Purchaser shall notify
Seller and cooperate in Seller's efforts to obtain a protective order or other
reasonable assurance that confidential treatment will be accorded such
information and, if in the absence of a protective order or such assurance,
Purchaser is compelled as a matter of law to disclose such information,
Purchaser shall, prior to making such disclosure, advise and consult with Seller
and its counsel as to such disclosure and the nature and wording of such
disclosure and Purchaser shall use reasonable efforts to obtain confidential
treatment therefor. Notwithstanding the foregoing, if reasonably advised by
counsel that Purchaser is required by a regulatory agency or court order to make
such disclosure immediately, then Purchaser shall be permitted to make such
disclosure without prior review by Seller.

4. REPRESENTATIONS, WARRANTIES AND COVENANTS OF SELLER AND PURCHASER.

4.1 To induce Purchaser to enter into this Agreement, Seller hereby makes for
the benefit of Purchaser and its assigns with respect to each Mortgage Loan as
of the date hereof (or as of such other date specifically set forth in the
particular representation and warranty) each of the representations and
warranties set forth on Exhibit 2 hereto, except as otherwise set forth on
Schedule A attached hereto, and hereby further represents, warrants and
covenants to Purchaser as of the date hereof that:

      4.1.1 Seller is duly organized and is validly existing as a limited
liability company in good standing under the laws of the State of Delaware.
Seller has the requisite power and authority and legal right to own the Mortgage
Loans and to transfer and convey the Mortgage Loans to Purchaser and has the
requisite power and authority to execute and deliver, engage in the transactions
contemplated by, and perform and observe the terms and conditions of, this
Agreement.

      4.1.2 This Agreement has been duly and validly authorized, executed and
delivered by Seller, and assuming the due authorization, execution and delivery
hereof by Purchaser, this Agreement constitutes the valid, legal and binding
agreement of Seller, enforceable in accordance with its terms, except as such
enforcement may be limited by (A) laws relating to bankruptcy, insolvency,
reorganization, receivership or moratorium, (B) other laws relating to or
affecting the rights of creditors generally, (C) general equity principles
(regardless of whether such enforcement is considered in a proceeding in equity
or at law) or (D) public policy considerations underlying the securities laws,
to the extent that such public policy considerations limit the enforceability of
the provisions of this Agreement that purport to provide indemnification from
liabilities under applicable securities laws.

      4.1.3 No consent, approval, authorization or order of, registration or
filing with, or notice to, any governmental authority or court is required,
under federal or state law, for the execution, delivery and performance of or
compliance by Seller with this Agreement, or the consummation by Seller of any
transaction contemplated hereby, other than (A) such qualifications as may be
required under state securities or blue sky laws, (B) the filing or recording of
financing statements, instruments of assignment and other similar documents
necessary in connection with Seller's sale of the Mortgage Loans to Purchaser,
(C) such consents, approvals, authorizations, qualifications, registrations,
filings or notices as have been obtained and (D) where the lack of such consent,
approval, authorization, qualification, registration, filing or notice would not
have a material adverse effect on the performance by Seller under this
Agreement.

      4.1.4 Neither the transfer of the Mortgage Loans to Purchaser, nor the
execution, delivery or performance of this Agreement by Seller, conflicts or
will conflict with, results or will result in a breach of, or constitutes or
will constitute a default under (A) any term or provision of Seller's articles
of organization or by-laws, (B) any term or provision of any material agreement,
contract, instrument or indenture to which Seller is a party or by which it or
any of its assets is bound or results 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 (C) after giving effect to the consents or taking of the actions
contemplated in Section 4.1.3 hereof, any law, rule, regulation, order,
judgment, writ, injunction or decree of any court or governmental authority
having jurisdiction over Seller or its assets, except where in any of the
instances contemplated by clauses (B) or (C) above, any conflict, breach or
default, or creation or imposition of any lien, charge or encumbrance, will not
have a material adverse effect on the consummation of the transactions
contemplated hereby by Seller or its ability to perform its obligations and
duties hereunder or result in any material adverse change in the business,
operations, financial condition, properties or assets of Seller, or in any
material impairment of the right or ability of Seller to carry on its business
substantially as now conducted.

      4.1.5 There are no actions or proceedings against, or investigations of,
Seller pending or, to Seller's knowledge, threatened in writing against Seller
before any court, administrative agency or other tribunal, the outcome of which
could reasonably be expected to materially and adversely affect the transfer of
the Mortgage Loans to Purchaser or the execution or delivery by, or
enforceability against, Seller of this Agreement or have an effect on the
financial condition of Seller that would materially and adversely affect the
ability of Seller to perform its obligations under this Agreement.

      4.1.6 On the Closing Date, the sale of the Mortgage Loans pursuant to this
Agreement will effect a transfer by Seller of all of its right, title and
interest in and to the Mortgage Loans to Purchaser.

      4.1.7 To Seller's knowledge, Seller's Information (as defined in that
certain indemnification agreement, dated October 11, 2007, between Seller,
Purchaser, the Underwriters and the Initial Purchasers (the "Indemnification
Agreement")) does not contain any untrue statement of a material fact or omit to
state a material fact necessary to make the statements therein, in the light of
the circumstances under which they were made, not misleading. Notwithstanding
anything contained herein to the contrary, this subparagraph 4.1.7 shall run
exclusively to the benefit of Purchaser and no other party.

      4.1.8 The Seller has complied with the disclosure requirements of
Regulation AB that arise from its role as "originator" and "sponsor" in
connection with the issuance of the Public Certificates.

      4.1.9 The Seller hereby agrees to deliver to the Purchaser (or with
respect to any Serviced Companion Mortgage Loan that is deposited into an Other
Securitization, the depositor in such Other Securitization) and the Paying Agent
or the Trustee, as applicable, any Additional Form 10-D Disclosure, any
Additional Form 10-K Disclosure and any Form 8-K Disclosure Information set
forth next to the Seller's name on Schedule XV, Schedule XVI or Schedule XVII of
the Pooling and Servicing Agreement (in formatting reasonably appropriate for
inclusion in such form) (collectively, "Seller Reporting Information"); provided
that, the Seller Reporting Information shall not be exclusive of any additional
disclosure items specifically related to the Seller that may be added to Form
10-K, Form 10-D or Form 8-K subsequent to the date hereof that are required to
be included in the Exchange Act reports related to the Trust if the Depositor or
the Paying Agent provides the Seller with notice of such additional
requirements. The Seller shall use its best efforts to deliver proposed
disclosure language relating to any such event described under Items 1117 and
1119 of Regulation AB and Item 1.03 to Form 8-K to the Paying Agent or the
Trustee, as applicable, and the Purchaser within one Business Day and in any
event no later than two Business Days of the Seller becoming aware of such event
and shall provide disclosure relating to any other Seller Reporting Information
required to be disclosed by Seller pursuant to this Section 4.1.9 on Form 8-K,
Form 10-D or Form 10-K within two Business Days following the Purchaser's
request for such disclosure language. The obligation of the Seller to provide
the above-referenced disclosure materials shall be suspended (for so long as
neither the Trust nor, with respect to any Serviced Companion Mortgage Loan
related to a Serviced Pari Passu Mortgage sold to the Trust by the Seller, the
trust in the related Other Securitization, is subject to the reporting
requirements of the Exchange Act) upon the Paying Agent or the Trustee, as
applicable, filing a Form 15 with respect to the Trust as to that fiscal year in
accordance with Section 13.8 of the Pooling and Servicing Agreement or the
reporting requirements with respect to the Trust under the Securities Exchange
Act of 1934, as amended, have otherwise been automatically suspended; provided
that, for the avoidance of doubt, the suspension of such information reporting
does not apply to Seller Reporting Information that is required to be provided
for the fiscal year prior to suspension of the Trust's reporting requirements
under the Securities Exchange Act of 1934 (including Additional Form 10-K
Disclosure required to be disclosed on the Form 10-K related to the fiscal year
preceding the year in which a Form 15 was filed). The Purchaser shall provide
the Seller with notice (which notice may be sent via facsimile or by email) if
the Paying Agent or the Trustee, as applicable, does not file such Form 15
Suspension Notification pursuant to Section 13.8 of the Pooling and Servicing
Agreement. The Seller hereby acknowledges that the information to be provided by
it pursuant to this Section will be used in the preparation of reports meeting
the reporting requirements of the Trust under Section 13(a) and/or Section 15(d)
of the Securities Exchange Act of 1934, as amended.

To induce Purchaser to enter into this Agreement, Seller hereby covenants that
the foregoing representations and warranties and those set forth on Exhibit 2
hereto, subject to the exceptions set forth in Schedule A to Exhibit 2, will be
true and correct in all material respects on and as of the Closing Date with the
same effect as if made on the Closing Date.

Each of the representations, warranties and covenants made by Seller pursuant to
this Section 4.1 shall survive the sale of the Mortgage Loans and shall continue
in full force and effect notwithstanding any restrictive or qualified
endorsement on the Mortgage Notes.

4.2 To induce Seller to enter into this Agreement, Purchaser hereby represents
and warrants to Seller as of the date hereof:

      4.2.1 Purchaser is a corporation duly organized, validly existing, and in
good standing under the laws of the State of Delaware with full power and
authority to carry on its business as presently conducted by it.

      4.2.2 Purchaser has full power and authority to acquire the Mortgage
Loans, to execute and deliver this Agreement and to enter into and consummate
all transactions contemplated by this Agreement. Purchaser has duly and validly
authorized the execution, delivery and performance of this Agreement and has
duly and validly executed and delivered this Agreement. This Agreement, assuming
due authorization, execution and delivery by Seller, constitutes the valid and
binding obligation of Purchaser, enforceable against it in accordance with its
terms, except as such enforceability may be limited by bankruptcy, insolvency,
reorganization, moratorium and 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.

      4.2.3 No consent, approval, authorization or order of, registration or
filing with, or notice to, any governmental authority or court is required,
under federal or state law, for the execution, delivery and performance of or
compliance by Purchaser with this Agreement, or the consummation by Purchaser of
any transaction contemplated hereby that has not been obtained or made by
Purchaser.

      4.2.4 Neither the purchase of the Mortgage Loans nor the execution,
delivery and performance of this Agreement by Purchaser will violate Purchaser's
certificate of incorporation or by-laws or constitute a default (or an event
that, with notice or lapse of time or both, would constitute a default) under,
or result in a breach of, any material agreement, contract, instrument or
indenture to which Purchaser is a party or that may be applicable to Purchaser
or its assets.

      4.2.5 Purchaser's execution and delivery of this Agreement and its
performance and compliance with the terms of this Agreement will not constitute
a violation of any law, rule, writ, injunction, order or decree of any court, or
order or regulation of any federal, state or municipal government agency having
jurisdiction over Purchaser or its assets, which violation could materially and
adversely affect the condition (financial or otherwise) or the operation of
Purchaser or its assets or could materially and adversely affect its ability to
perform its obligations and duties hereunder.

      4.2.6 There are no actions or proceedings against, or investigations of,
Purchaser pending or, to Purchaser's knowledge, threatened against Purchaser
before any court, administrative agency or other tribunal, the outcome of which
could reasonably be expected to adversely affect the transfer of the Mortgage
Loans, the issuance of the Certificates, the execution, delivery or
enforceability of this Agreement or have an effect on the financial condition of
Purchaser that would materially and adversely affect the ability of Purchaser to
perform its obligation under this Agreement.

      4.2.7 Purchaser has not dealt with any broker, investment banker, agent or
other person, other than Seller, the Underwriters, the Initial Purchasers and
their respective affiliates, that may be entitled to any commission or
compensation in connection with the sale of the Mortgage Loans or consummation
of any of the transactions contemplated hereby.

To induce Seller to enter into this Agreement, Purchaser hereby covenants that
the foregoing representations and warranties will be true and correct in all
material respects on and as of the Closing Date with the same effect as if made
on the Closing Date.

Each of the representations and warranties made by Purchaser pursuant to this
Section 4.2 shall survive the purchase of the Mortgage Loans.

5. REMEDIES UPON BREACH OF REPRESENTATIONS AND WARRANTIES MADE BY SELLER.

5.1 It is hereby acknowledged that Seller shall make for the benefit of the
Trustee on behalf of the holders of the Certificates, whether directly or by way
of Purchaser's assignment of its rights hereunder to the Trustee, the
representations and warranties set forth on Exhibit 2 hereto (each as of the
date hereof unless otherwise specified).

5.2 It is hereby further acknowledged that if any document required to be
delivered to the Trustee pursuant to Section 2 hereof is not delivered as and
when required, not properly executed or is defective on its face, or if there is
a breach of any of the representations and warranties required to be made by
Seller regarding the characteristics of the Mortgage Loans and/or the related
Mortgaged Properties as set forth in Exhibit 2 hereto, and in either case the
party discovering such breach or defect determines that either (i) the defect or
breach materially and adversely affects the interests of the holders of the
Certificates in the related Mortgage Loan or (ii) both (A) the defect or breach
materially and adversely affects the value of the Mortgage Loan and (B) the
Mortgage Loan is a Specially Serviced Mortgage Loan or Rehabilitated Mortgage
Loan (any such defect described in the preceding clause (i) or (ii), a "Material
Document Defect" and any such breach described in the preceding clause (i) or
(ii), a "Material Breach"), the party determining that such Material Document
Defect or Material Breach exists shall promptly notify, in writing, the other
parties; provided that any breach of the representation and warranty contained
in paragraph (41) of such Exhibit 2 shall constitute a Material Breach only if
such prepayment premium or yield maintenance charge is not deemed "customary"
for commercial mortgage loans as evidenced by (i) an opinion of tax counsel to
such effect or (ii) a determination by the Internal Revenue Service that such
provision is not customary. Promptly (but in any event within three Business
Days) upon determining (or becoming aware of another party's determination) that
any such Material Document Defect or Material Breach exists (which determination
shall, absent evidence to the contrary, be presumed to be no earlier than three
Business Days prior to delivery of the notice to Seller referred to below), the
Master Servicer shall, and the Special Servicer may, request that Seller, not
later than 90 days from Seller's receipt of the notice of such Material Document
Defect or Material Breach, cure such Material Document Defect or Material
Breach, as the case may be, in all material respects; provided, however, that if
such Material Document Defect or Material Breach, as the case may be, cannot be
corrected or cured in all material respects within such 90 day period, and such
Material Document Defect or Material Breach would not cause the Mortgage Loan to
be other than a "qualified mortgage" (as defined in the Code) but Seller is
diligently attempting to effect such correction or cure, as certified by Seller
in an Officer's Certificate delivered to the Trustee, then the cure period will
be extended for an additional 90 days unless, solely in the case of a Material
Document Defect, (x) the Mortgage Loan is then a Specially Serviced Mortgage
Loan and a Servicing Transfer Event has occurred as a result of a monetary
default or as described in clause (ii) or clause (v) of the definition of
"Servicing Transfer Event" in the Pooling and Servicing Agreement and (y) the
Material Document Defect was identified in a certification delivered to Seller
by the Trustee pursuant to Section 2.2 of the Pooling and Servicing Agreement
not less than 90 days prior to the delivery of the notice of such Material
Document Defect. The parties acknowledge that neither delivery of a
certification or schedule of exceptions to Seller pursuant to Section 2.2 of the
Pooling and Servicing Agreement or otherwise nor possession of such
certification or schedule by Seller shall, in and of itself, constitute delivery
of notice of any Material Document Defect or knowledge or awareness by Seller,
the Master Servicer or the Special Servicer of any Material Document Defect
listed therein.

5.3 Seller hereby covenants and agrees that, if any such Material Document
Defect or Material Breach cannot be corrected or cured or Seller otherwise fails
to correct or cure within the above cure periods, Seller shall, on or before the
termination of such cure periods, either (i) repurchase the affected Mortgage
Loan or REO Mortgage Loan (or interest therein) from Purchaser or its assignee
at the Purchase Price as defined in the Pooling and Servicing Agreement, or (ii)
if within the three-month period commencing on the Closing Date (or within the
two-year period commencing on the Closing Date if the related Mortgage Loan is a
"defective obligation" within the meaning of Section 860G(a)(4)(B)(ii) of the
Code and Treasury Regulation Section 1.860G-2(f)), at its option replace,
without recourse, any Mortgage Loan or REO Mortgage Loan to which such defect
relates with a Qualifying Substitute Mortgage Loan. If such Material Document
Defect or Material Breach would cause the Mortgage Loan to be other than a
"qualified mortgage" (as defined in the Code), then notwithstanding the previous
sentence or the previous paragraph, repurchase must occur within 85 days from
the date Seller was notified of the defect. Seller agrees that any substitution
shall be completed in accordance with the terms and conditions of the Pooling
and Servicing Agreement.

5.4 If (x) a Mortgage Loan is to be repurchased or replaced as contemplated
above (a "Defective Mortgage Loan"), (y) such Defective Mortgage Loan is
cross-collateralized and cross-defaulted with one or more other Mortgage Loans
("Crossed Mortgage Loans") and (z) the applicable document defect or breach does
not constitute a Material Document Defect or Material Breach, as the case may
be, as to such Crossed Mortgage Loans (without regard to this paragraph), then
the applicable document defect or breach (as the case may be) shall be deemed to
constitute a Material Document Defect or Material Breach, as the case may be, as
to each such Crossed Mortgage Loan for purposes of the above provisions, and
Seller shall be obligated to repurchase or replace each such Crossed Mortgage
Loan in accordance with the provisions above, unless, in the case of such breach
or document defect, (A) Seller provides a Nondisqualification Opinion to the
Trustee at the expense of Seller if, in the reasonable business judgment of the
Trustee, it would be usual and customary in accordance with industry practice to
obtain a Nondisqualification Opinion and (B) both of the following conditions
would be satisfied if Seller were to repurchase or replace only those Mortgage
Loans as to which a Material Breach or Material Document Defect had occurred
without regard to this paragraph (the "Affected Loan(s)"): (i) the debt service
coverage ratio for all those Crossed Mortgage Loans (excluding the Affected
Loan(s)) for the four calendar quarters immediately preceding the repurchase or
replacement is not less than the lesser of (A) 0.10x below the debt service
coverage ratio for all such Crossed Mortgage Loans (including the Affected
Loans(s)) set forth in Appendix II to the Prospectus Supplement and (B) the debt
service coverage ratio for all such Crossed Mortgage Loans (including the
Affected Loan(s)) for the four preceding calendar quarters preceding the
repurchase or replacement, and (ii) the loan-to-value ratio for all such Crossed
Mortgage Loans (excluding the Affected Loan(s)) is not greater than the greater
of (A) the loan-to-value ratio, expressed as a whole number (taken to one
decimal place), for all such Crossed Mortgage Loans (including the Affected
Loan(s)) set forth in Appendix II to the Prospectus Supplement plus 10% and (B)
the loan-to-value ratio for all such Crossed Mortgage Loans (including the
Affected Loans(s)), at the time of repurchase or replacement. The determination
of the Master Servicer as to whether the conditions set forth above have been
satisfied shall be conclusive and binding in the absence of manifest error. The
Master Servicer will be entitled to cause to be delivered, or direct Seller to
(in which case Seller shall) cause to be delivered to the Master Servicer, an
Appraisal of any or all of the related Mortgaged Properties for purposes of
determining whether the condition set forth in clause (ii) above has been
satisfied, in each case at the expense of Seller if the scope and cost of the
Appraisal is approved by Seller (such approval not to be unreasonably withheld).

5.5 With respect to any Defective Mortgage Loan, to the extent that Seller is
required to repurchase or substitute for such Defective Mortgage Loan in the
manner prescribed above while the Trustee (as assignee of Purchaser) continues
to hold any Crossed Mortgage Loan, Seller and Purchaser hereby agree to forebear
from enforcing any remedies against the other's Primary Collateral but may
exercise remedies against the Primary Collateral securing their respective
Mortgage Loans, including with respect to the Trustee, the Primary Collateral
securing the Mortgage Loans still held by the Trustee, so long as such exercise
does not impair the ability of the other party to exercise its remedies against
its Primary Collateral. If the exercise of remedies by one party would impair
the ability of the other party to exercise its remedies with respect to the
Primary Collateral securing the Mortgage Loan or Mortgage Loans held by such
party, then both parties shall forbear from exercising such remedies until the
loan documents evidencing and securing the relevant Mortgage Loans can be
modified in a manner that complies with the Pooling and Servicing Agreement to
remove the threat of impairment as a result of the exercise of remedies. Any
reserve or other cash collateral or letters of credit securing the Crossed
Mortgage Loans shall be allocated between such Mortgage Loans in accordance with
the Mortgage Loan documents, or otherwise on a pro rata basis based upon their
outstanding Principal Balances. All other terms of the Mortgage Loans shall
remain in full force and effect, without any modification thereof. The
Mortgagors set forth on Schedule B hereto are intended third-party beneficiaries
of the provisions set forth in this paragraph and the preceding paragraph. The
provisions of this paragraph and the preceding paragraph may not be modified
with respect to any Mortgage Loan without the related Mortgagor's consent.

5.6 Any of the following document defects shall be conclusively presumed to
materially and adversely affect the interests of Certificateholders in a
Mortgage Loan and be a Material Document Defect: (a) the absence from the
Mortgage File of the original signed Mortgage Note, unless the Mortgage File
contains a signed lost note affidavit and indemnity that appears to be regular
on its face; (b) the absence from the Mortgage File of the original signed
Mortgage that appears to be regular on its face, unless there is included in the
Mortgage File a certified copy of the Mortgage by the local authority with which
the Mortgage was recorded; or (c) the absence from the Mortgage File of the item
specified in paragraph 2.2.8. If any of the foregoing Material Document Defects
is discovered by the Custodian (or the Trustee if there is no Custodian), the
Trustee (or as set forth in Section 2.3(a) of the Pooling and Servicing
Agreement, the Master Servicer) will take the steps described elsewhere in this
Section, including the giving of notices to the Rating Agencies and the parties
hereto and making demand upon Seller for the cure of the Material Document
Defect or repurchase or replacement of the related Mortgage Loan.

5.7 If Seller disputes that a Material Document Defect or Material Breach exists
with respect to a Mortgage Loan or otherwise refuses (i) to effect a correction
or cure of such Material Document Defect or Material Breach, (ii) to repurchase
the affected Mortgage Loan from Purchaser or its assignee or (iii) to replace
such Mortgage Loan with a Qualifying Substitute Mortgage Loan, each in
accordance with this Agreement, then provided that (x) the period of time
provided for Seller to correct, repurchase or cure has expired and (y) the
Mortgage Loan is then in default and is the