POOLING AGREEMENT

Pooling and Servicing Agreement

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GREENWICH CAPITAL ACCEPTA | U.S. BANK NATIONAL ASSOCIATION,

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Title: POOLING AGREEMENT
Governing Law: New York Date: 10/27/2005

POOLING AGREEMENT

, Parties: greenwich capital accepta , u.s. bank national association

EXECUTION COPY

GREENWICH CAPITAL ACCEPTANCE, INC.,
Depositor

GREENWICH CAPITAL FINANCIAL PRODUCTS, INC.,
Seller

and

U.S. BANK NATIONAL ASSOCIATION,
Trustee

POOLING AGREEMENT

Dated as of September 1, 2005

__________________________________

HarborView Mortgage Loan Trust 2005-13

Mortgage Loan Pass-Through Certificates, Series 2005-13

Table of Contents

Page

ARTICLE I

DEFINITIONS; DECLARATION OF TRUST

SECTION 1.01. Defined Terms .

SECTION 1.02. Accounting .

ARTICLE II

CONVEYANCE OF MORTGAGE LOANS; ORIGINAL ISSUANCE

OF CERTIFICATES

SECTION 2.01. Conveyance of Mortgage Loans .

SECTION 2.02. Acceptance by Trustee .

SECTION 2.03. Repurchase or Substitution of Mortgage Loans by the Originator and the

Seller .

SECTION 2.04. Representations and Warranties of the Seller with Respect to the

Mortgage Loans .

SECTION 2.05. [Reserved].

SECTION 2.06. Representations and Warranties of the Depositor .

SECTION 2.07. Issuance of Certificates .

SECTION 2.08. Representations and Warranties of the Seller .

SECTION 2.09. Covenants of the Seller .

ARTICLE III

ADMINISTRATION OF THE MORTGAGE LOANS

SECTION 3.01. Servicing of the Mortgage Loans .

SECTION 3.02. REMIC-Related Covenants .

SECTION 3.03. Release of Mortgage Files .

SECTION 3.04. REO Property .

SECTION 3.05. Reports Filed with Securities and Exchange Commission .

SECTION 3.06. [Reserved] .

SECTION 3.07. Indemnification by the Trustee .

ARTICLE IV

ACCOUNTS

SECTION 4.01. Servicing Accounts

SECTION 4.02. Distribution Account .

SECTION 4.03. Permitted Withdrawals and Transfers from the Distribution Account .

SECTION 4.04. Yield Maintenance Account .

SECTION 4.05. Certificate Insurance Policy .

SECTION 4.06. Prefunding Account .

ARTICLE V

FLOW OF FUNDS

SECTION 5.01. Distributions .

SECTION 5.02. Allocation of Net Deferred Interest .

SECTION 5.03. Allocation of Realized Losses .

SECTION 5.04. Statements .

SECTION 5.05. Remittance Reports; Advances .

SECTION 5.06. Basis Risk Reserve Fund .

SECTION 5.07. Recoveries.

ARTICLE VI

THE CERTIFICATES

SECTION 6.01. The Certificates .

SECTION 6.02. Registration of Transfer and Exchange of Certificates .

SECTION 6.03. Mutilated, Destroyed, Lost or Stolen Certificates .

107

SECTION 6.04. Persons Deemed Owners .

108

ARTICLE VII

DEFAULT

108

SECTION 7.01. Event of Default .

108

SECTION 7.02. Trustee to Act .

108

SECTION 7.03. Waiver of Event of Default .

110

SECTION 7.04. Notification to Certificateholders .

110

ARTICLE VIII

THE TRUSTEE

110

SECTION 8.01. Duties of the Trustee

110

SECTION 8.02. Certain Matters Affecting the Trustee

112

SECTION 8.03. Trustee Not Liable for Certificates or Mortgage Loans .

113

SECTION 8.04. Trustee and Custodian May Own Certificates .

114

SECTION 8.05. Trustee’s Fees and Expenses .

114

SECTION 8.06. Eligibility Requirements for Trustee

114

SECTION 8.07. Resignation or Removal of Trustee

115

SECTION 8.08. Successor Trustee

115

SECTION 8.09. Merger or Consolidation of Trustee

116

SECTION 8.10. Appointment of Co-Trustee or Separate Trustee .

116

SECTION 8.11. Limitation of Liability .

117

SECTION 8.12. Trustee May Enforce Claims Without Possession of Certificates .

117

SECTION 8.13. Suits for Enforcement .

118

SECTION 8.14. Waiver of Bond Requirement .

118

SECTION 8.15. Waiver of Inventory, Accounting and Appraisal Requirement .

118

SECTION 8.16. Appointment of Custodians .

118

SECTION 8.17. Indemnification

119

ARTICLE IX

REMIC ADMINISTRATION

119

SECTION 9.01. REMIC Administration .

119

SECTION 9.02. Prohibited Transactions and Activities .

121

ARTICLE X

TERMINATION

122

SECTION 10.01. Termination .

122

SECTION 10.02. Additional Termination Requirements .

124

ARTICLE XI

[RESERVED]

124

ARTICLE XII

MISCELLANEOUS PROVISIONS

124

SECTION 12.01. Amendment .

124

SECTION 12.02. Recordation of Agreement; Counterparts .

126

SECTION 12.03. Limitation on Rights of Certificateholders .

126

SECTION 12.04. Governing Law; Jurisdiction .

127

SECTION 12.05. Notices .

127

SECTION 12.06. Severability of Provisions .

128

SECTION 12.07. Article and Section References .

128

SECTION 12.08. Notice to the Rating Agency .

128

SECTION 12.09. Further Assurances .

129

SECTION 12.10. Benefits of Agreement .

129

SECTION 12.11. Acts of Certificateholders .

130

SECTION 12.12. Successors and Assigns .

130

SECTION 12.13. Provision of Information .

130

EXHIBITS AND SCHEDULES :

Exhibit A-1

Form of Class A Certificate

A-1

Exhibit A-2

Form of Class X Certificate

A-2

Exhibit A-3

Form of Class PO Certificate

A-3

Exhibit B

Form of Class A-R Certificate

B-1

Exhibit C

Form of Subordinate Certificate

C-1

Exhibit D

[Reserved]

D-1

Exhibit E

Form of Reverse of the Certificates

E-1

Exhibit F

Request for Release

F-1

Exhibit G-1

Form of Receipt of Mortgage Note

G-1-1

Exhibit G-2

Form of Interim Certification of Trustee

G-2-1

Exhibit G-3

Form of Final Certification of Trustee

G-3-1

Exhibit H

Form of Lost Note Affidavit

H-1

Exhibit I-1

Form of ERISA Representation [Class A-R]

I-1-1

Exhibit I-2

Form of ERISA Representation For ERISA-Restricted Certificates

I-2-1

Exhibit J-1

Form of Investment Letter Non-Rule 144A

J-1-1

Exhibit J-2

Form of Rule 144A Investment Letter

J-2-1

Exhibit K

Form of Transferor Certificate

K-1

Exhibit L

Transfer Affidavit for Residual Certificate Pursuant to

Section 6.02(e)

L-1

Exhibit M

List of Servicing Agreements

M-1

Exhibit N-1

Form of Transfer Certificate (Restricted Global Security to

Regulation S Security)

N-1-1

Exhibit N-2

Form of Transfer Certificate (Regulation S Security to

Restricted Global Security)

N-2-1

Exhibit O

Certificate Insurance Policy

O-1

Exhibit P

Form of Trustee Certification

P-1

Exhibit Q

Form of Subsequent Transfer Agreement

Q-1

Schedule I

Mortgage Loan Schedule

Schedule II

[Reserved]

Schedule III

Yield Maintenance Payments

This Pooling Agreement is dated as of September 1, 2005 (the “ Agreement ”), among GREENWICH CAPITAL ACCEPTANCE, INC., a Delaware corporation, as depositor (the “ Depositor ”), GREENWICH CAPITAL FINANCIAL PRODUCTS, INC., a Delaware corporation, as seller (the “ Seller ”) and U.S. BANK NATIONAL ASSOCIATION, a national banking association, as trustee (the “ Trustee ”).

PRELIMINARY STATEMENT:

Through this Agreement, the Depositor intends to cause the issuance and sale of the HarborView Mortgage Loan Trust 2005-13 Mortgage Loan Pass-Through Certificates, Series 2005-13 (the “ Certificates ”) representing in the aggregate the entire beneficial ownership of the Trust, the primary assets of which are the Mortgage Loans (as defined below).

The Depositor intends to sell the Certificates to be issued hereunder in multiple classes, which in the aggregate will evidence the entire beneficial ownership interest in the Trust Fund created hereunder. The Certificates will consist of twenty-two classes of certificates, designated as (i) the Class 1-A1A Certificates, (ii) the Class 1-A1B Certificates, (iii) the Class 2-A1A1 Certificates, (iv) the Class 2-A1A2 Certificates, (v) the Class 2-A1B Certificates, (vi) the Class 2-A1C Certificates, (vii) the Class X Certificates, (viii) the Class PO Certificates, (ix) the Class A-R Certificates, (x) the Class A-R-II Certificates, (xi) the Class B-1 Certificates, (xii) the Class B-2 Certificates, (xiii) the Class B-3 Certificates, (xiv) the Class B-4 Certificates, (xv) the Class B-5 Certificates, (xvi) the Class B-6 Certificates and (xvii) the Class B-7 Certificates.

As provided herein, the Trustee shall elect that the Trust Fund (exclusive of the assets held in the Prefunding Account, the Basis Risk Reserve Fund, and the Yield Maintenance Account and the Yield Maintenance Agreements (collectively, the “Excluded Trust Property”) be treated for federal income tax purposes as comprising three real estate mortgage investment conduits (each, a “REMIC” or, in the alternative, the “Lower-Tier REMIC,” the “Middle-Tier REMIC” and the “Upper-Tier REMIC”). Each Certificate, other than the Class A-R and Class A-R-II Certificates, shall represent ownership of a regular interest in the Upper-Tier REMIC, as described herein. In addition, (i) the LIBOR Certificates represent the right to receive payments in respect of Basis Risk Shortfalls from the Basis Risk Reserve Fund as provided in Section 5.07 and (ii) the Class 1-A1A, Class 1-A1B, Class 2-A1A1, Class 2-A1A2, Class 2-A1B and Class 2-A1C Certificates represent the right to receive payments in respect of Basis Risk Shortfalls from the Yield Maintenance Account as provided in Section 4.04. The owners of the Class X Certificates beneficially own the Basis Risk Reserve Fund and the Yield Maintenance Account. The Class A-R-II Certificate represents ownership of the sole class of residual interest in the Lower-Tier REMIC, and the Class A-R Certificates represent ownership of the sole class of residual interest in the Middle-Tier and the Upper-Tier REMICs.

The Lower-Tier REMIC shall hold as assets all property of the Trust Fund, other than the Excluded Trust Property and the interests in the Lower-Tier REMIC and the Middle-Tier REMIC formed hereby. The Middle-Tier REMIC shall hold as assets the uncertificated Lower-Tier Interests, other than the Class LT-R Interest. Each such Lower-Tier Interest is hereby designated as a REMIC regular interest. The Upper-Tier REMIC shall hold as assets the uncertificated Middle-Tier Interests, other than the Class MT-R Interest. Each such Middle-Tier Interest is hereby designated as a REMIC regular interest.

Lower-Tier REMIC Interests

The following table specifies the Class designation, interest rate, and initial principal amount for each Lower-Tier REMIC Interest:

Designation	Interest Rate	Initial Principal Balance	Related group
LT-Group 1	(1)	$ 244,736,115.39	Group 1
LT-Group 1 SCA	(1)	$ 263,373.39	Group 1
LT-Group 2	(2)	$ 668,463,549.41	Group 2
LT-Group 2 SCA	(2)	$ 719,378.78	Group 2
LT-R	(3)	(3)	N/A

(1)

The interest rate with respect to any Distribution Date (and the related Accrual Period) for each of these Lower-Tier Interests is a per annum rate equal to the Group 1 Net WAC.

(2)

The interest rate with respect to any Distribution Date (and the related Accrual Period) for each of these Lower-Tier Interests is a per annum rate equal to the Group 2 Net WAC.

(3)

The LT-R Interest is the sole class of residual interests in the Lower-Tier REMIC. It does not have an interest rate or a principal balance. Ownership of the LT-R Interest is represented by the Class A-R-II Certificate.

On each Distribution Date, Available Funds for Loan Group 1 and Loan Group 2 shall be allocated among the Lower-Tier Interests in the following order of priority:

(i)

First, concurrently to the LT-Group 1 SCA and LT-Group 2 SCA Interests as follows:

(a)

to the LT-Group 1 SCA Interest until its principal balance equals one percent of the Subordinate Component for Loan Group 1 for the immediately succeeding Distribution Date;

(b)

to the LT-Group 2 SCA Interest until its principal balance equals one percent of the Subordinate Component for Loan Group 2 for the immediately succeeding Distribution Date;

(c)

to the LT-Group 1 SCA or the LT-Group 2 SCA Interest the amount necessary to cause the ratio of the principal balance of the LT-Group 1 SCA Interest to the principal balance of the LT-Group 2 SCA Interest to equal the ratio of the Subordinate Component for Loan Group 1 for the immediately succeeding Distribution Date to equal the Subordinate Component for Loan Group 2 for the immediately succeeding Distribution Date;

(ii)

Second, concurrently to the LT-Group 1 and the LT-Group 2 Interests until –

(a)

the principal balance of the LT-Group 1 Interest equals the excess of (I) the Pool Balance for Loan Group 1 for the immediately succeeding Distribution Date, over (II) the principal balance of the LT-Group 1 SCA Interest for such Distribution Date, after taking into account distributions pursuant to priority (i) above for such Distribution Date, and

(b)

the principal balance of the LT-Group 2 Interest equals the excess of (I) the Pool Balance for Loan Group 2 as of for the immediately succeeding Distribution Date, over (II) the principal balance of the LT-Group 2 SCA Interest for such Distribution Date, after taking into account distributions pursuant to priority (i) above for such Distribution Date.

(iii)

Third, to make interest distributions on the Lower-Tier Interests at the interest rates described above, provided, however , that any Net Deferred Interest for Loan Group 1 or Loan Group 2 will be allocated among and increase the principal balances of the Lower-Tier Interest in the same order and priority in which principal is distributed pursuant to priorities (i) and (ii) above.

(iv)

Finally, any remaining amounts to the LT-R Interest.

On any Distribution Date, after all distributions of Available Funds from Loan Group 1 and Loan Group 2 on such date, Realized Losses shall be allocated among the Lower-Tier Interests in the same order of priority in which principal is distributed among such Lower-Tier Interests pursuant to priorities (i) and (ii) above.

Middle-Tier REMIC Interests

Designation	Interest Rate	Initial Principal Balance	Corresponding Class of Certificates
MT1-A1A	(1)	$ 65,598,550.00	Class 1-A1A, Class A-R
MT1-A1B	(1)	$ 43,732,500.00	Class 1-A1B
MT1-Q	(1)	$ 104,957,858.00	N/A
MT1-Z	(1)	$ 2,186,621.00	N/A
MT1-Y	(1)	$ 2,186,621.00	N/A
MT2-A1A1	(2)	$ 89,586,750.00	Class 2-A1A1
MT2-A2A2	(2)	$ 89,586,750.00	Class 2-A1A2
MT2-A1B	(2)	$ 74,655,500.00	Class 2-A1B
MT2-A1C	(2)	$ 44,793,500.00	Class 2-A1C
MT2-Q	(2)	$ 286,677,650.00	N/A
MT2-Z	(2)	$ 5,972,450.00	N/A
MT2-Y	(2)	$ 5,972,450.00	N/A
MTB-1	(3)	$ 20,341,000.00	Class B-1
MTB-2	(3)	$ 9,142,000.00	Class B-2
MTB-3	(3)	$ 5,485,000.00	Class B-3
MTB-4	(3)	$ 1,828,500.00	Class B-4
MTB-5	(3)	$ 4,114,000.00	Class B-5
MTB-6	(3)	$ 4,571,000.00	Class B-6
MTB-7	(3)	$ 3,656,108.49	Class B-7
MTB-Q	(3)	$ 47,172,104.15	N/A
MTB-Z	(3)	$ 982,752.17	N/A
MTB-Y	(3)	$ 982,752.17	N/A
MT-R	(4)	(4)	Class A-R-II

(1)

The interest rate with respect to any Distribution Date (and the related Accrual Period) for each of these Middle-Tier Interests is a per annum rate equal to the weighted average of the interest rates on the LT-Group 1 and LT-Group 1 SCA Interests for such Distribution Date (the Group 1 Net WAC).

(2)

The interest rate with respect to any Distribution Date (and the related Accrual Period) for each of these Middle-Tier Interests is a per annum rate equal to the weighted average of the interest rates on the LT-Group 2 and LT-Group 2 SCA Interests for such Distribution Date (the Group 2 Net WAC).

(3)

The interest rate with respect to any Distribution Date (and the related Accrual Period) for each of these Middle-Tier Interests is a per annum rate equal to the weighted average of the interest rates on the LT-Group 1 SCA and LT-Group 2 SCA Interests for such Distribution Date.

(4)

The MT-R Interest is the sole class of residual interests in the Middle-Tier REMIC. It does not have an interest rate or a principal balance. Ownership of the MT-R Interest is represented by the Class AR Certificates.

On each Distribution Date, Available Funds, which shall have been distributed in respect of the Lower-Tier Interests in the Lower-Tier REMIC, shall be allocated among the Middle-Tier Interests in the following order of priority:

(i)

First, to the MT1-Z, MT2-Z, MTB-Z, MT1-Y, MT2-Y, and MTB-Y Interests in reduction of their principal balances as follows –

(a)

Concurrently to the MT1-Z, MT2-Z, and MTB-Z Interests the amount, if any, required to reduce (I) the principal balance of the MT1-Z Interest to the MT1-Z Target Balance for such Distribution Date, (II) the principal balance of the MT2-Z Interest to the MT2-Z Target Balance for such Distribution Date, and (III) the principal balance of the MTB-Z Interest to the MTB-Z Target Balance for such Distribution Date;

(b)

Concurrently to the MT1-Y, MT2-Y, and MTB-Y Interests the amount, if any, required to reduce (I) the principal balance of the MT1-Y Interest to the MT1-Y Target Balance for such Distribution Date, (II) the principal balance of the MT2-Y Interest to the MT2-Y Target Balance for such Distribution Date, and (III) the principal balance of the MTB-Y Interest to the MTB-Y Target Balance for such Distribution Date; and

(c)

Concurrently to the MT1-Z, MT2-Z, MTB-Z, MT1-Y, MT2-Y, and MTB-Y Interests as follows: (I) to the MT1-Z and MT1-Y Interests, in proportion to their principal balances, after taking into account distributions pursuant to priorities (a) and (b) above, until the sum of their principal balances equals 2% of the aggregate Class Certificate Principal Balance of the Class A-R, Class 1-A1A, and Class 1-A1B Certificates immediately after such Distribution Date, (II) to the MT2-Z and MT2-Y Interests, in proportion to their principal balances, after taking into account distributions pursuant to priorities (a) and (b) above, until the sum of their principal balances equals 2% of the aggregate Class Certificate Principal Balance of the Class 2-A1A1, Class 2-A1A2, Class 2-A1B and Class 2-A1C Certificates immediately after such Distribution Date, and (III) to the MTB-Z and MTB-Y Interests, in proportion to their principal balances, after taking into account distributions pursuant to priorities (a) and (b) above, until the sum of their principal balances equals 2% of the aggregate Class Certificate Principal Balance of the Class B-1, Class B-2, Class B-3, Class B-4, Class B-5, Class B-6 and Class B-7 Certificates immediately after such Distribution Date,

(ii)

Second, concurrently to the MT1-A1A, MT1-A1B, MT2-A1A1, MT2-A1A2, MT2-A1B, MT2-A1C, MT-B-1, MT-B-2, MT-B-3. MT-B-4, MT-B-5, MT-B-6 and MT-B-7 Interests until the principal balance of each such Middle-Tier Interest equals 50% of the Class Certificate Principal Balance or Balances of the Corresponding Class or Classes of Certificates for such Middle-Tier Interest immediately after such Distribution Date;

(iii)

Third, concurrently to the MT1-Q, MT2-Q, and MTB-Q Interests until (a) the principal balance of the MT1-Q Interest equals the excess of (I) the aggregate Class Certificate Principal Balance of the Class 1-A1A, and Class 1-A1B Certificates and the Component Principal Balance of the PO-1 Component immediately after such Distribution Date over (II) the aggregate of the principal balances of the MT1-A1A, MT1-A1B, MT1-Z, and MT1-Y Interests after taking into account the distributions made pursuant to priorities (i) and (ii) above on such Distribution Date, (b) the principal balance of the MT2-Q Interest equals the excess of (I) the aggregate Class Certificate Principal Balance of the Class 2-A1A1, Class 2-A1A2, Class 2-A1B and Class 2-A1C Certificates and the Component Principal Balance of the 2-PO Componenet immediately after such Distribution Date over (b) the aggregate of the principal balances of the MT2-A1A1, MT2-A1A2, MT2-A1B , MT2-A1C, MT2-Z, and MT2-Y Interests after taking into account the distributions made pursuant to priorities (i) and (ii) above on such Distribution Date, and (c) the principal balance of the MTB-Q Interest equals the excess of (I) the aggregate Class Certificate Principal Balance of the Class B-1, Class B-2, Class B-3, Class B-4, Class B-5, Class B-6 and Class B-7 Certificates immediately after such Distribution Date over (b) the aggregate of the principal balances of the MTB-1, MTB-2, MTB-3, MTB-4, MTB-5, MTB-6, MTB-7, MTB-Z, and MTB-Y Interests after taking into account the distributions made pursuant to priorities (i) and (ii) above on such Distribution Date;

(iv)

Fourth, remaining Available Funds shall be applied to interest distributions on the Middle-Tier Interests in the Middle-Tier REMIC at the interest rates described above, provided, however , that any Net Deferred Interest will be allocated among and increase the principal balances of the Middle-Tier Interests in the same order of priority in which principal is distributed among such Middle-Tier Interests pursuant to priorities (i)(c), (ii), and (iii) above.

On any Distribution Date, after all distributions of Available Funds, which shall have been distributed or allocated in respect of the Lower-Tier Interests in the Lower-Tier REMIC, Realized Losses shall be allocated among the Middle-Tier Interests in the same order of priority in which principal is distributed among such Middle-Tier Interests pursuant to priorities (i) through (iii) above.

The Certificates

The following table sets forth (or describes) the Class designation, Pass-Through Rate, and Original Class Certificate Principal Balance (or initial Certificate Notional Balance) for each Class of Certificates comprising interests in the Trust Fund created hereunder. Each Class of Certificates, other than the Class A-R and Class A-R-II Certificates, is hereby designated as representing ownership of regular interests in the Upper-Tier REMIC.

	Original Class Certificate Principal Balance or Class Certificate Notional Balance	Pass-Through Rate
Class 1-A1A	$131,197,000.00	(1)
Class 1-A1B	$87,465,000.00	(1)
Class 2-A1A1	$179,173,500.00	(1)
Class 2-A1A2	$179,173,500.00	(1)
Class 2-A1B	$149,311,000.00	(1)
Class 2-A1C	$89,587,000.00	(1)
Class X	Notional Amount (2)	(1)(2)
Class PO	$100.00(3)	(4)
Class A-R	$100.00	(1)
Class B-1	$40,682,000.00	(5)
Class B-2	$18,284,000.00	(5)
Class B-3	$10,970,000.00	(5)
Class B-4	$3,657,000.00	(5)
Class B-5	$8,228,000.00	(5)
Class B-6	$9,142,000.00	(5)
Class B-7	$7,312,217.00	(5)
Class A-R-II	(6)	(6)

____________

(1)

Calculated pursuant to the definition of “Pass-Through Rate.”

(2)

For purposes of the REMIC provisions, the Class X Certificates shall accrue interest on a notional balance equal to the sum of the principal balances of the Middle-Tier Interests (other than the MT-R Interest). For purposes of the REMIC Provisions, interest shall accrue on the Class X Certificate at a rate equal to the excess, if any, of (i) the Adjusted Net WAC over (ii) the Adjusted Middle-Tier WAC. The Class X Certificates are interest-only certificates and will not be entitled to distributions of principal.

(3)

The Class PO Certificates will be deemed for purposes of the distribution of principal to consist of two components: the PO-1 Component and the PO-2 Component. The Components are not severable. For purposes of the REMIC Provisions, The Class PO Certificates shall accrue interest on a notional balance equal to the sum of the principal balances of the Middle-Tier Interests (other than the MT-R Interest). For purposes of the REMIC Provisions, interest shall accrue on the Class PO Certificate at a rate equal to the excess, if any, of (i) the Net WAC over (ii) the Adjusted Middle-Tier Pay Rate. All amounts so accrued shall be deferred and distributed as principal in respect of the PO-1 and PO-2 Components.

(4)

The Class PO Certificates are principal-only certificates and will not be entitled to distributions of interest.

(5)

Calculated pursuant to the definition of “Pass-Through Rate,” but adjusted, for purposes of the REMIC Provisions, to reflect the allocation, if any, of Subordinate Class Expense Share.

(6)

For purposes of the REMIC provisions, the Class A-R-II Certificate represents ownership of the Class LT-R Interest, which is the sole classes of residual interest in the Lower-Tier REMIC and does not have a principal balance or a pass-through rate.

ARTICLE I

DEFINITIONS; DECLARATION OF TRUST

SECTION 1.01. Defined Terms .

Whenever used in this Agreement or in the Preliminary Statement, the following words and phrases, unless the context otherwise requires, shall have the meanings specified in this Article. All calculations of interest described herein shall be made on the basis of an assumed 360-day year consisting of twelve 30-day months.

“ 1933 Act ”: The Securities Act of 1933, as amended.

“ Acceptable Successor Servicer ”: A FHLMC- or FNMA-approved servicer that is (i) reasonably acceptable to the Trustee and (ii) acceptable to each Rating Agency, as evidenced by a letter from each such Rating Agency delivered to the Trustee that such entity’s acting as a successor servicer will not result in a qualification, withdrawal or downgrade of the then-current rating of any of the Certificates.

“ Account ”: The Distribution Account or each Servicing Account, as the context requires.

“ Accrual Period ”: With respect to each Distribution Date and the Class X and Class A-R Certificates, and any Class of Lower-Tier Interests, the calendar month prior to the month of that Distribution Date. With respect to each Distribution Date and the LIBOR Certificates, the period beginning on the immediately preceding Distribution Date (or Closing Date in the case of the first Distribution Date) and ending on the date immediately preceding such Distribution Date. Interest on the LIBOR Certificates will be calculated on the basis of a 360-day year and the actual number of days elapsed in the related Accrual Period; in the case of the other Classes of Certificates (and the Lower-Tier Interests), interest shall be calculated based on an assumption that each month has 30 days and each year has 360 days.

“ Accrued Interest Amount ”: For any Distribution Date and for any Undercollateralized Group, an amount equal to one month’s interest on the applicable Principal Deficiency Amount at the Net WAC of the applicable Loan Group, plus any interest accrued on such Undercollateralized Group remaining unpaid from prior Distribution Dates.

“ Adjusted Cap Rate ”: Any of the Group 1 Adjusted Cap Rate, the Group 2 Adjusted Cap Rate, the Class X Adjusted Cap Rate or the Subordinate Adjusted Cap Rate, as applicable.

“ Adjustment Date ”: With respect to each Mortgage Loan, each adjustment date on which the related Loan Rate changes pursuant to the related Mortgage Note. The first Adjustment Date following the Cut-Off Date as to each Mortgage Loan is set forth in the Mortgage Loan Schedule.

“Adjusted Middle-Tier Pay Rate”: For any Distribution Date (and the related Accrual Period), the product of (i) 2 multiplied by (ii) the weighted average of the interest rates on the MT1-A1A, MT1-A1B, MT1-Q, MT1-Y, MT1-Z, MT2-A1A1, MT2-A1A2, MT2-A1B, MT2-A1C, MT2-Q, MT2-Y, MT2-Z, MTB-1, MTB-2, MTB-3, MTB-4, MTB-5, MTB-6, MTB-7, MTB-Q, MTB-Z, and MTB-Y Interests, weighted on the basis of their principal balances as of the first day of the related Accrual Period and computed for this purpose by (a) first subjecting the interest rate on the MT1-Q, MT1-Z, MT1-Y, MT2-Q, MT2-Y, MT2-Z, MTB-Q, MTB-Y, and MTB-Z Interests to a cap of 0.00%, and (b) first subjecting the interest rate on the MT1-A1A, MT1-A1B, MT2-A1A1, MT2-A1A2, MT2-A1B, MT2-A1C, MTB-1, MTB-2, MTB-3, MTB-4, MTB-5, MTB-6 and MTB-7 Interests to a cap equal to (I) the Pass-Through Rate for their Corresponding Class of Certificates (in the case of the Class 1-A1B and Class 2-A1C Certificates, increased to reflect the applicable Premium Rate) multiplied by the quotient of (A) the actual number of days in the Accrual Period for the Corresponding Class of Certificates divided by (B) 30 and a floor equal to (II) the Adjusted Net WAC.

“Adjusted Middle-Tier WAC”: For any Distribution Date (and the related Accrual Period), the product of (i) 2 multiplied by (ii) the weighted average of the interest rates on the MT1-A1A, MT1-A1B, MT1-Q, MT1-Y, MT1-Z, MT2-A1A1, MT2-A1A2, MT2-A1B, MT2-A1C, MT2-Q, MT2-Y, MT2-Z, MTB-1, MTB-2, MTB-3, MTB-4, MTB-5, MTB-6, MTB-7, MTB-Q, MTB-Z, and MTB-Y Interests, weighted on the basis of their principal balances as of the first day of the related Accrual Period and computed for this purpose by (a) first subjecting the interest rate on the MT1-Q, MT1-Z, MT1-Y, MT2-Q, MT2-Y, MT2-Z, MTB-Q, MTB-Y, and MTB-Z Interests to a cap of 0.00%, and (b) first subjecting each of the MT1-A1A, MT1-A1B, MT2-A1A1, MT2-A1A2, MT2-A1B, MT2-A1C, MTB-1, MTB-2, MTB-3, MTB-4, MTB-5, MTB-6 and MTB-7 Interests to a cap equal to the lesser of (I) the Pass-Through Rate for the Corresponding Class of Certificates (in the case of the Class 1-A1B and Class 2-A1C Certificates, increased to reflect the applicable Premium Rate) multiplied by the quotient of (A) the actual number of days in the Accrual Period for the Corresponding Class of Certificates divided by (B) 30 and (II) the Adjusted Net WAC.

“Adjusted Net WAC” : For any Distribution Date the excess of (i) the Net WAC for such Distribution Date over (ii) the quotient of (a) the product of (I) the Net Deferred Interest for such Distribution Date for both Loan Groups multiplied by (II) 12, divided by (b) the Pool Balance for such Distribution Date.

“ Advance ”: With respect to any Distribution Date and any Mortgage Loan or REO Property, any advance made by the Servicer pursuant to Section 7.02.

“ Adverse REMIC Event ”: Either (i) loss of status as a REMIC, within the meaning of Section 860D of the Code, for any group of assets identified as a REMIC in the Preliminary Statement to this Agreement, or (ii) imposition of any tax, including the tax imposed under Section 860F(a)(1) on prohibited transactions, and the tax imposed under Section 860G(d) on certain contributions to a REMIC, on any REMIC created hereunder to the extent such tax would be payable from assets held as part of the Trust Fund.

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

“ Aggregate Premium Amount ”: As to any Distribution Date and each Class of Insured Certificates, the product of one-twelfth of the Premium Rate and the aggregate of the Class 1-A1B and Class 2-A1C Certificate Principal Balance on the immediately preceding Distribution Date, or, in the case of the first Distribution Date, the Closing Date, in each case after giving effect to distributions of principal made on such Distribution Date.

“ Aggregate Subordinate Percentage ”: As to any Distribution Date, the percentage equivalent of a fraction the numerator of which is the aggregate of the Class Certificate Principal Balances of the Classes of Subordinate Certificates and the denominator of which is the Pool Balance for such Distribution Date.

“ Aggregate Subsequent Transfer Amount ”: With respect to any Subsequent Transfer Date, the aggregate Stated Principal Balances as of the applicable Cut-off Date of the Subsequent Mortgage Loans conveyed on such Subsequent Transfer Date, as listed on the revised Mortgage Loan Schedule delivered pursuant to Section 2.01(b); provided , however , that such amount shall not exceed the amount on deposit in the Prefunding Account.

“ Agreement ”: This Pooling Agreement, dated as of September 1, 2005, as amended, supplemented and otherwise modified from time to time.

“ Applicable Credit Support Percentage ”: As defined in Section 5.01(d).

“ Apportioned Principal Balance ”: As to any Class of Subordinate Certificates, Loan Group and any Distribution Date, the Class Certificate Principal Balance of such Class immediately prior to such Distribution Date multiplied by a fraction, the numerator of which is the Subordinate Component for the related Loan Group for such date and the denominator of which is the sum of the related Subordinate Components (in the aggregate).

“ Assignment ”: As to any Mortgage, an assignment of mortgage, notice of transfer or equivalent instrument, in recordable form, which is sufficient, under the laws of the jurisdiction in which the related Mortgaged Property is located, to reflect or record the sale of such Mortgage.

“ Available Funds ”: As to any Distribution Date and any Loan Group, an amount equal to (i) the sum of (a) the aggregate of the Monthly Payments received on or prior to the related Determination Date (excluding Monthly Payments due in future Due Periods but received by the related Determination Date) in respect of the Mortgage Loans in that Loan Group, (b) Net Liquidation Proceeds, Insurance Proceeds, Principal Prepayments (excluding Prepayment Penalty Amounts), Recoveries and other unscheduled recoveries of principal and interest in respect of the Mortgage Loans in that Loan Group received during the related Prepayment Period, (c) the aggregate of any amounts received in respect of REO Properties for such Distribution Date in respect of the Mortgage Loans in that Loan Group, (d) the aggregate of any amounts of Interest Shortfalls (excluding for such purpose all shortfalls as a result of Relief Act Reductions) paid by the Servicer pursuant to the Servicing Agreement and Compensating Interest Payments deposited in the Distribution Account for that Distribution Date in respect of the Mortgage Loans in that Loan Group, (e) the aggregate of the Purchase Prices and Substitution Adjustments deposited in the Distribution Account during the related Prepayment Period in respect of the Mortgage Loans in that Loan Group, (f) the aggregate of any advances in respect of delinquent Monthly Payments made by the Servicer for that Distribution Date in respect of the Mortgage Loans in that Loan Group, (g) the aggregate of any Advances made by the Trustee for that Distribution Date pursuant to Section 7.02 hereof in respect of the Mortgage Loans in that Loan Group, (h) the Termination Price allocated to such Loan Group on the Distribution Date on which the Trust is terminated, and (i) with respect to the Distribution Date in the month following the end of the Prefunding Period, any amounts remaining in the Prefunding Account (other than investment earnings thereon); minus (ii) the sum of (u) the Expense Fees for that Distribution Date in respect of the Mortgage Loans in that Loan Group, (v) amounts in reimbursement for Advances previously made in respect of the Mortgage Loans in that Loan Group and other amounts as to which the Servicer, the Trustee and the Custodian are entitled to be reimbursed pursuant to Section 4.03, (w) the amount payable to the Trustee, pursuant to Section 8.05 and the Custodian pursuant to Section 19 of the BONY Custodial Agreement in respect of the Mortgage Loans in that Loan Group or if not related to a Mortgage Loan, allocated to each Loan Group on a pro rata basis, (x) amounts deposited in the Distribution Account in error in respect of the Mortgage Loans in that Loan Group, (y) the portion of the Premium Amount payable on such Distribution Date to the Certificate Insurer from such Loan Group and (z) with respect to any Distribution Date on or prior to the Distribution Date following the end of the Prefunding Period and if there is a Deficiency Amount, the amount remaining in the Prefunding Account equal to such Deficiency Amount.

“ Bankruptcy Code ”: The Bankruptcy Reform Act of 1978 (Title 11 of the United States Code), as amended.

“ Basis Risk Reserve Fund ”: A fund created as part of the Trust Fund pursuant to Section 5.07 of this Agreement but which is not an asset of any of the REMICs.

“ Basis Risk Shortfall ”: With respect to any Distribution Date and the LIBOR Certificates, the “Basis Risk Shortfall” for such class, if any, will equal the sum of:

(i)

the excess, if any, of the Interest Distributable Amount that such Class would have been entitled to receive if the Pass-Through Rate for such Class were calculated without regard to clause (ii) in the definition thereof, over the actual Interest Distributable Amount such Class is entitled to receive for such Distribution Date;

(ii)

any excess described in clause (i) above remaining unpaid from prior Distribution Dates; and

(iii)

interest for the applicable Accrual Period on the amount described in clause (ii) above based on the applicable Pass-Through Rate, determined without regard to clause (ii) in the definition thereof.

“ BONY Custodial Agreement ”: The Custodial Agreement, dated as of September 1, 2005, between the Trustee and the Bank of New York, as custodian.

“ Book-Entry Certificates ”: Any of the Certificates that shall be registered in the name of the Depository or its nominee, the ownership of which is reflected on the books of the Depository or on the books of a Person maintaining an account with the Depository (directly, as a “Depository Participant”, or indirectly, as an indirect participant in accordance with the rules of the Depository and as described in Section 6.02 hereof). On the Closing Date, all Classes of the Certificates other than the Physical Certificates shall be Book-Entry Certificates.

“ Business Day ”: Any day other than a Saturday, a Sunday or a day on which banking or savings institutions in the State of California, the State of Minnesota, the State of Texas, the State of New York, the State of Massachusetts or in the city in which the Corporate Trust Office of the Trustee is located are authorized or obligated by law or executive order to be closed.

“ Call Option ”: The right to terminate this Agreement and the Trust pursuant to the second paragraph of Section 10.01(a) hereof.

“ Call Option Date ”: As defined in Section 10.01(a) hereof.

“ Certificate ”: Any Regular Certificate or Residual Certificate.

“ Certificate Insurance Policy ”: The Certificate Guaranty Insurance Policy (No. AB0930BE) with respect to the Class 1-A1B and Class 2-A1C Certificates, and all endorsements thereto dated the Closing Date, issued by the Certificate Insurer for the benefit of the Holders of the Class 1-A1B and Class 2-A1C Certificates, a copy of which is attached hereto as Exhibit O.

“ Certificate Insurer ”: Ambac Assurance Corporation, a Wisconsin domiciled stock insurance corporation.

“ Certificate Insurer Default ”: The existence and continuance of any of the following: (a) a failure by the Certificate Insurer to make a payment required under the Certificate Insurance Policy in accordance with its terms; (b) the entry of a decree or order of a court or agency having jurisdiction in respect of the Certificate Insurer in an involuntary case under any present or future federal or state bankruptcy, insolvency or similar law appointing a conservator or receiver or liquidator or other similar official of the Certificate Insurer or of any substantial part of its property, or the entering of an order for the winding up or liquidation of the affairs of the Certificate Insurer and the continuance of any such decree or order undischarged or unstayed and in force for a period of 90 consecutive days; (c) the Certificate Insurer shall consent to the appointment of a conservator or receiver or liquidator or other similar official in any insolvency, readjustment of debt, marshaling of assets and liabilities or similar proceedings of or relating to the Certificate Insurer or of or relating to all or substantially all of its property; or (d) the Certificate Insurer shall admit in writing its inability to pay its debts generally as they become due, file a petition to take advantage of or otherwise voluntarily commence a case or proceeding under any applicable bankruptcy, insolvency, reorganization or other similar statute, make an assignment for the benefit of its creditors, or voluntarily suspend payment of its obligations.

“ Certificate Insurer Reimbursement Amount ”: For any Distribution Date, the sum of (a) all amounts previously paid by the Certificate Insurer in respect of Insured Amounts for which the Certificate Insurer has not been reimbursed prior to such Distribution Date and (b) interest accrued on the foregoing at the Late Payment Rate from the date the Trustee received such amounts paid by the Certificate Insurer to such Distribution Date.

“ Certificate Notional Balance ”: With respect to each Certificate of Class X and any date of determination, the product of (i) the Class Certificate Notional Balance of such Class and (ii) the applicable Percentage Interest of such Certificate.

“ Certificate Owner ”: With respect to each Book-Entry Certificate, any beneficial owner thereof and with respect to each Physical Certificate, the Certificateholder thereof.

“ Certificate Principal Balance ”: With respect to each Certificate of a given Class (other than the Class X and Class A-R-II Certificates) and any date of determination, the product of (i) the Class Certificate Principal Balance of such Class and (ii) the applicable Percentage Interest of such Certificate.

“ Certificate Register ” and “ Certificate Registrar ”: The register maintained and registrar appointed pursuant to Section 6.02 hereof. U.S. Bank National Association will act as Certificate Registrar, for so long as it is the Trustee under this Agreement.

“ Certificateholder ” or “ Holder ”: The Person in whose name a Certificate is registered in the Certificate Register, except that a Disqualified Organization or non-U.S. Person shall not be a Holder of a Residual Certificate for any purpose hereof.

“ Class ”: Collectively, Certificates that have the same priority of payment and bear the same class designation and the form of which is identical except for variation in the Percentage Interest evidenced thereby.

“ Class 1-A1A Certificate ”: Any of the Class 1-A1A Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit A-1, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“Class 1-A1A Yield Maintenance Agreement” : The transaction evidenced by the confirmation dated September 30, 2005 together with any other related documents thereto, between the Yield Maintenance Provider and the Trust, for the benefit of the Class 1-A1A Certificates.

“ Class 1-A1B Certificate ”: Any of the Class 1-A1B Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit A-1, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class 1-A1B Premium Amount ”: As to any Distribution Date and the Class 1-A1B Certificates, the product of one-twelfth of the Premium Rate and the Class 1-A1B Certificate Principal Balance on the immediately preceding Distribution Date, or, in the case of the first Distribution Date, the Closing Date, in each case after giving effect to distributions of principal made on such Distribution Date.

“Class 1-A1B Yield Maintenance Agreement” : The transaction evidenced by the confirmation dated September 30, 2005 together with any other related documents thereto, between the Yield Maintenance Provider and the Trust, for the benefit of the Class 1-A1B Certificates.

“ Class 2-A1A1 Certificate ”: Any of the Class 2-A1A Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit A-1, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“Class 2-A1A1, Class 2-A1A2 and Class 2-A1B Yield Maintenance Agreement” : The transaction evidenced by the confirmation dated September 30, 2005 together with any other related documents thereto, between the Yield Maintenance Provider and the Trust, for the benefit of the Class 2-A1A1, Class 2-A1A2 and Class 2-A1B Certificates.

“ Class 2-A1B Certificate ”: Any of the Class 2-A1B Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit A-1, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class 2-A1C Certificate ”: Any of the Class 2-A1C Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit A-1, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class 2-A1C Premium Amount ”: As to any Distribution Date and the Class 2-A1C Certificates, the product of one-twelfth of the Premium Rate and the Class 2-A1C Certificate Principal Balance on the immediately preceding Distribution Date, or, in the case of the first Distribution Date, the Closing Date, in each case after giving effect to distributions of principal made on such Distribution Date.

“Class 2-A1C Yield Maintenance Agreement” : The transaction evidenced by the confirmation dated September 30, 2005 together with any other related documents thereto, between the Yield Maintenance Provider and the Trust, for the benefit of the Class 2-A1C Certificates.

“ Class A-R Certificate ”: The Class A-R Certificate as designated on the face thereof executed by the Trustee, and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit B, evidencing the ownership of the sole class of “residual interest” in the Upper-Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class A-R-II Certificate ”: The Class A-R-II Certificate as designated on the face thereof executed by the Trustee, and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit B, evidencing the ownership of the sole class of “residual interest” in the Lower-Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class B-1 Certificate ”: Any of the Class B-1 Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit C, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class B-2 Certificate ”: Any of the Class B-2 Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit C, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class B-3 Certificate ”: Any of the Class B-3 Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit C, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class B-4 Certificate ”: Any of the Class B-4 Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit C, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class B-5 Certificate ”: Any of the Class B-5 Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit C, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class B-6 Certificate ”: Any of the Class B-6 Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit C, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class B-7 Certificate ”: Any of the Class B-7 Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit C, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class Certificate Principal Balance ”: As to any Distribution Date, with respect to any Class of Certificates (other than the Class X, Class PO and Class A-R-II Certificates), the Original Class Certificate Principal Balance as reduced by the sum of (x) all amounts actually distributed in respect of principal of that Class on all prior Distribution Dates, (y) all Realized Losses, if any, actually allocated to that Class on all prior Distribution Dates and (z) in the case of the Subordinate Certificates, any applicable Writedown Amount; provided , however , that (i) pursuant to Section 5.02, the Class Certificate Principal Balance of a Class of Certificates shall be increased up to the amount of Net Deferred Interest allocated to such Class of Certificates on such Distribution Date and (ii) pursuant to Section 5.08, the Class Certificate Principal Balance of a Class of Certificates may be increased up to the amount of Realized Losses previously allocated to such Class, in the event that there is a Recovery on a related Mortgage Loan, and the Certificate Principal Balance of any individual Certificate of such Class will be increased by its pro rata share of the increase to such Class. With respect to the Class PO Certificates, the sum of the Component Principal Balances of the Principal-Only Components as (a) reduced by the sum of (x) all amounts actually distributed in respect of principal of such Components on all prior Distribution Dates and (y) all Realized Losses, if any, actually allocated to such Components on all prior Distribution Dates; provided , however , that (i) pursuant to Section 5.02, the Component Principal Balance of the PO-1 Component shall be increased up to the amount of Net Deferred Interest allocated to the Class X Certificates from Loan Group 1 and the Component Principal Balance of the PO-2 Component shall be increased up to the amount of Net Deferred Interest allocated to the Class X Certificates from Loan Group 2, in each case based on the related Mortgage Loans on such Distribution Date and (ii) pursuant to Section 5.08, the Component Principal Balance of a Component may be increased up to the amount of Realized Losses previously allocated to such Component, in the event that there is a Recovery on a related Mortgage Loan.

“ Class LT-R Interest ”: As described in the Preliminary Statement.

“ Class PO Certificate ”: Any of the Class PO Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit A-3, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“ Class Subordination Percentage ”: With respect to each Class of Subordinate Certificates and any Distribution Date, the percentage equivalent of a fraction the numerator of which is the Class Certificate Principal Balance of such Class immediately before such Distribution Date and the denominator of which is the aggregate of the Class Certificate Principal Balances of all Classes of Certificates and Component Principal Balances immediately before such Distribution Date.

“ Class X Adjusted Cap Rate ”: With respect to the Class X Certificate for any Distribution Date, the Pass-Through Rate for the Class X Certificate, computed for this purpose by (i) reducing the Net WAC for the Mortgage Loans by a per annum rate equal to the quotient of (a) the Net Deferred Interest for such Distribution Date multiplied by 12, and (b) the Aggregate Principal Balance of the Mortgage Loans as of the first day of the month prior to such Distribution Date, and (ii) computing the interest accrued on the Certificates (other than the Class X Certificates) by substituting either the “Group 1 Adjusted Cap Rate,” “Group 2 Adjusted Cap Rate” or “Subordinate Adjusted Cap Rate,” as applicable for “Net WAC Cap” in the definition of Pass-Through Rate for each of the LIBOR Certificates.

“ Class X Apportionment Rule ”: Either the Group 1 Class X Apportionment Rule or the Group 2 Class X Apportionment Rule, as applicable.

“ Class X Certificate ”: Any of the Class X Certificates as designated on the face thereof, executed by the Trustee and authenticated and delivered by the Certificate Registrar, substantially in the form annexed hereto as Exhibit A-2, evidencing the ownership of a “regular interest” in the Upper Tier REMIC created hereunder and representing the right to distributions as set forth herein and therein.

“Class X Certificate Notional Balance ”: As of any Distribution Date, the aggregate Principal Balance of the Mortgage Loans and amounts on deposit in the Prefunding Account, if any, at the beginning of the related Due Period.

“ Close of Business ”: As used herein, with respect to any Business Day and location, 5:00 p.m. at such location.

“ Closing Date ”: September 30, 2005.

“ Code ”: The Internal Revenue Code of 1986, as amended.

“ Commission ”: U.S. Securities and Exchange Commission.

“ Commitment Letter ”: The letter dated the Closing Date from the Certificate Insurer to the Seller (a copy of which has been furnished to the Trustee) setting forth the payment arrangements for the Aggregate Premium Amount on the Certificate Insurance Policy and certain related expense payment arrangements

“ Compensating Interest Payment ”: With respect to any Distribution Date, the amount specified to be paid by the Servicer pursuant to Section 11.04(ix) of the Servicing Addendum to the Servicing Agreement.

“ Component ”: Any of the PO-1 Component or PO-2 Component, as applicable.

“Component Principal Balance” : As of any date of determination, any of the PO-1 Component Principal Balance or the PO-2 Component Principal Balance on such date as applicable.

“ Cooperative Corporation ”: The entity that holds title (fee or an acceptable leasehold estate) to the real property and improvements constituting the Cooperative Property and which governs the Cooperative Property, which Cooperative Corporation must qualify as a Cooperative Housing Corporation under Section 216 of the Code.

“ Cooperative Loan ”: Any Mortgage Loan secured by Cooperative Shares and a Proprietary Lease.

“ Cooperative Loan Documents ”: As to any Cooperative Loan, (i) the Cooperative Shares, together with a stock power in blank; (ii) the original or a copy of the executed Security Agreement; (iii) the original or a copy of the executed Proprietary Lease and the original assignment of the Proprietary Lease endorsed in blank; (iv) the original executed Recognition Agreement and, if available, the original assignment of the Recognition Agreement (or a blanket assignment of all Recognition Agreements) endorsed in blank; (v) the executed UCC-1 financing statement with evidence of recording thereon, which has been filed in all places required to perfect the security interest in the Cooperative Shares and the Proprietary Lease; and (vi) executed UCC amendments (or copies thereof) or other appropriate UCC financing statements required by state law, evidencing a complete and unbroken line from the mortgagee to the Trustee with evidence of recording thereon (or in a form suitable for recordation).

“ Cooperative Property ”: The real property and improvements owned by the Cooperative Corporation, that includes the allocation of individual dwelling units to the holders of the Cooperative Shares of the Cooperative Corporation.

“ Cooperative Shares ”: Shares issued by a Cooperative Corporation.

“ Cooperative Unit ”: A single family dwelling located in a Cooperative Property.

“ Corporate Trust Office ”: With respect to the Trustee, the principal corporate trust office at which at any particular time its corporate trust business in connection with this Agreement shall be administered, which office at the date of the execution of this instrument is located at One Federal Street, Boston, Massachusetts 02110, Attention: Corporate Trust, HarborView Mortgage Loan Trust 2005-13, or at such other address as the Trustee may designate from time to time by notice to the Certificateholders, the Depositor, and the Seller. With respect to the Certificate Registrar and presentment of Certificates for registration of transfer, exchange or final payment, the office of its agent, located at 100 Wall Street, 15th Floor, New York, New York 10004.

“ Corresponding Class ”: With respect to each class of Lower-Tier Interests, the Class or Classes of Certificates so designated in the Preliminary Statement.

“ Countrywide ”: Countrywide Home Loans, Inc., and its successors and assigns, in its capacity as Originator of the Mortgage Loans.

“ Countrywide Servicing ”: Countrywide Home Loans Servicing LP, as a servicer of the Mortgage Loans as set forth and as individually defined in the Mortgage Loan Schedule hereto and any successors thereto.

“ Custodial Fee ”: As to any Distribution Date and each Mortgage Loan, an amount equal to the product of the Custodial Fee Rate and the outstanding Principal Balance of such Mortgage Loan as of the first day of the related Due Period.

“ Custodial Fee Rate ”: 0.0016% per annum.

“ Custodian ”: The Bank of New York, and its successors acting as custodian of the Mortgage Files, as indicated on the Mortgage Loan Schedule.

“ Cut-off Date ”: For any Initial Mortgage Loan, the Initial Cut-off Date. For any Subsequent Mortgage Loan, the applicable Subsequent Cut-off Date.

“ Cut-Off Date Aggregate Principal Balance ”: The aggregate of the Cut-Off Date Principal Balances of the Mortgage Loans in each Loan Group.

“ Cut-Off Date Principal Balance ”: With respect to any Mortgage Loan, the principal balance thereof remaining to be paid, after application of all scheduled principal payments due on or before the Cut-Off Date whether or not received as of the Cut-Off Date (or as of the applicable date of substitution with respect to a Qualified Substitute Mortgage Loan).

“ DBRS ”: Dominion Bond Rating Service, Inc., and its successors.

“ Deferred Interest ”: With respect to each Mortgage Loan and each related Due Date, will be the excess, if any, of the amount of interest accrued on such Mortgage Loan from the preceding Due Date to such due date over the portion of the Monthly Payment allocated to interest for such Due Date.

“ Deficiency Amount ”: Means with respect to the Insured Certificates, (a) for any Distribution Date prior to the Final Distribution Date, the sum of (1) the excess, if any, of the Monthly Interest Distributable Amount on the Insured Certificates for such Distribution Date, net of any Net Interest Shortfalls, Basis Risk Shortfalls or Net Deferred Interest, over the amount of Available Funds to pay such net amount on the Insured Certificates on such Distribution Date, and (2) the amount, if any, of any Realized Losses allocable to the Insured Certificates on such Distribution Date (after giving effect to all distributions to be made thereon on such Distribution Date, other than pursuant to a claim on the Policy) and (b) for the Final Distribution Date, the sum of (x) the amount set forth in clause (a)(1) above and (y) the outstanding Certificate Principal Balance of the Insured Certificates, after giving effect to all payments of principal on the Insured Certificates on such Final Distribution Date, other than pursuant to a claim on the Certificate Insurance Policy on that Distribution Date.

“ Definitive Certificates ”: Any Certificate evidenced by a Physical Certificate and any Certificate issued in lieu of a Book-Entry Certificate pursuant to Section 6.02(c) or (d) hereof.

“ Deleted Mortgage Loan ”: A Mortgage Loan replaced or to be replaced by one or more Qualified Substitute Mortgage Loans.

“ Delinquent ”: Any Mortgage Loan with respect to which the Monthly Payment due on a Due Date is not made.

“ Depositor ”: Greenwich Capital Acceptance, Inc., a Delaware corporation, or any successor in interest.

“ Depository ”: The initial Depository shall be The Depository Trust Company, whose nominee is Cede & Co., or any other organization registered as a “clearing agency” pursuant to Section 17A of the Securities Exchange Act of 1934, as amended. The Depository shall initially be the registered Holder of the Book-Entry Certificates. The Depository shall at all times be a “clearing corporation” as defined in Section 8-102(3) of the Uniform Commercial Code of the State of New York.

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

“ Determination Date ”: For any Distribution Date and each Mortgage Loan, the date each month, as set forth in the Servicing Agreement, on which the Servicer determines the amount of all funds required to be remitted to the Trustee on the Servicer Remittance Date with respect to the Mortgage Loans.

“Directly Operate” : With respect to any REO Property, the furnishing or rendering of services to the tenants thereof, the management or operation of such REO Property, the holding of such REO Property primarily for sale to customers, the performance of any construction work thereon or any use of such REO Property in a trade or business conducted by any REMIC formed hereby other than through an Independent Contractor; provided, however, that the Trustee (or the Servicer on behalf of the Trustee) shall not be considered to Directly Operate an REO Property solely because the Trustee (or the Servicer on behalf of the Trustee) establishes rental terms, chooses tenants, enters into or renews leases, deals with taxes and insurance, or makes decisions as to repairs or capital expenditures with respect to such REO Property.

“ Disqualified Organization ”: A “disqualified organization” defined in Section 860E(e)(5) of the Code, or any other Person so designated by the Trustee based upon an Opinion of Counsel provided to the Trustee by nationally recognized counsel acceptable to the Trustee that the holding of an ownership interest in the Residual Certificate by such Person may cause the Trust Fund or any Person having an ownership interest in any Class of Certificates (other than such Person) to incur liability for any federal tax imposed under the Code that would not otherwise be imposed but for the transfer of an ownership interest in the Residual Certificate to such Person.

“ Distribution Account ”: The trust account or accounts created and maintained by the Trustee pursuant to Section 4.02 hereof for the benefit of the Certificateholders and designated “Distribution Account, U.S. Bank National Association, as Trustee, in trust for the registered Certificateholders of HarborView Mortgage Loan Trust 2005-13, Mortgage Loan Pass-Through Certificates, Series 2005-13” and which must be an Eligible Account.

“ Distribution Account Income ”: As to any Distribution Date, any interest or other investment income earned on funds deposited in the Distribution Account during the month of such Distribution Date.

“ Distribution Date ”: The 19th day of the month, or, if such day is not a Business Day, the next Business Day commencing in October 2005.

“ Distribution Date Statement ”: As defined in Section 5.04(a) hereof.

“ Due Date ”: With respect to each Mortgage Loan and any Distribution Date, the first day of the calendar month in which that Distribution Date occurs on which the Monthly Payment for such Mortgage Loan was due, exclusive of any days of grace.

“ Due Period ”: With respect to any Distribution Date, the period commencing on the second day of the month preceding the month in which that Distribution Date occurs and ending on the first day of the month in which that Distribution Date occurs.

“ Eligible Account ”: Any of

(i)

an account or accounts maintained with a federal or state chartered depository institution or trust company the short-term unsecured debt obligations of which (or, in the case of a depository institution or trust company that is the principal subsidiary of a holding company, the short-term unsecured debt obligations of such holding company) are rated in the highest short term rating category of the Rating Agency at the time any amounts are held on deposit therein;

(ii)

an account or accounts the deposits in which are fully insured by the FDIC (to the limits established by it), the uninsured deposits in which account are otherwise secured such that, as evidenced by an Opinion of Counsel delivered to the Trustee and to the Rating Agency, the Certificateholders will have a claim with respect to the funds in the account or a perfected first priority security interest against the collateral (which shall be limited to Permitted Investments) securing those funds that is superior to claims of any other depositors or creditors of the depository institution with which such account is maintained;

(iii)

a trust account or accounts maintained with the trust department of a federal or state chartered depository institution, national banking association or trust company acting in its fiduciary capacity; or

(iv)

an account otherwise acceptable to the Rating Agency without reduction or withdrawal of its then current ratings of the Certificates as evidenced by a letter from the Rating Agency to the Trustee. Eligible Accounts may bear interest.

“ Endorsement ”: As defined in the Certificate Insurance Policy.

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

“ ERISA-Restricted Certificates ”: Any Class of Certificates, other than the Class 1-A1A, Class 2-A1A1 and Class 2-A1A2 Certificates, and any Certificate that does not satisfy the applicable rating requirement under the Underwriter’s Exemption.

“ ERISA-Qualifying Underwriting ”: A best efforts or firm commitment underwriting or private placement that meets the requirements of an Underwriter’s Exemption.

“ Event of Default ”: As defined in the Servicing Agreement.

“ Expense Fee ” With respect to any Mortgage Loan, the sum of (i) the Servicing Fee, (ii) the Custodial Fee and (iii) with respect to any Lender-Paid Mortgage Insurance Loan, the Lender-Paid Mortgage Insurance Fee.

“ Fannie Mae ”: The Federal National Mortgage Association or any successor thereto.

“ FDIC ”: The Federal Deposit Insurance Corporation or any successor thereto.

“ Final Distribution Date ”: The Distribution Date occurring in November 2035.

“ Final Recovery Determination ”: With respect to any defaulted Mortgage Loan or any REO Property (other than a Mortgage Loan or REO Property purchased by the Seller pursuant to or as contemplated by Sections 2.03 and 10.01), a determination made by the Servicer, and reported to the Trustee, that all Insurance Proceeds, Liquidation Proceeds and other payments or recoveries which the Servicer expects to be finally recoverable in respect thereof have been so recovered.

“ Freddie Mac ”: The Federal Home Loan Mortgage Corporation or any successor thereto.

“ GCFP ”: Greenwich Capital Financial Products, Inc., and its successors and assigns.

“ Gross Margin ”: With respect to each Mortgage Loan, the fixed percentage set forth in the related Mortgage Note that is added to the applicable Index on each Adjustment Date in accordance with the terms of the related Mortgage Note used to determine the Loan Rate for such Mortgage Loan.

“Group 1 Adjusted Cap Rate” : For any Distribution Date and the Class 1-A1A and Class 1-A1B Certificates, the applicable Net WAC Cap for that Distribution Date, computed for this purposes by first reducing the Group 1 Net WAC by a per annum rate equal to (i) the quotient of (a) the product of the Net Deferred Interest, if any, on the Group 1 Mortgage Loans for the Distribution Date multiplied by (b) 12, and (ii) the aggregate Stated Principal Balance of the Group 1 Mortgage Loans as of the first day of the month before such Distribution Date (or in the case of the first Distribution Date, as of the Cut-Off Date).

“Group 1 Adjusted Net WAC” : For any Distribution Date, the excess of (i) the Group 1 Net WAC for such Distribution Date over (ii) the quotient of (a) the product of (I) the Net Deferred Interest for Loan Group 1 for such Distribution Date multiplied by (II) 12, divided by (b) the Pool Balance for Loan Group 1 for such Distribution Date.

“ Group 1 Class X Apportionment Rule ”: For purposes of calculating the interest distributable to the Class X Certificate from Loan Group 1 for any Accrual Period, an amount equal to the product of (a) the Monthly Interest Distributable Amount for the Class X Certificates for such Distribution Date and (b) a fraction, the numerator of which is the aggregate Stated Principal Balance of the Group 1 Mortgage Loans and the denominator of which is the aggregate Stated Principal Balance of all of the Mortgage Loans, in each case, as of the first day of the related Due Period.

“ Group 1 Mortgage Loan ”: A Mortgage Loan that is identified as such on the Mortgage Loan Schedule.

“ Group 1 Net WAC ”: With respect to any Distribution Date, the weighted average of the Net Loan Rates of the Group 1 Mortgage Loans as of the first day of the related Due Period (or, in the case of the first Distribution Date, as of the Cut-Off Date), weighted on the basis of the related Stated Principal Balances at the beginning of the related Due Period.

“ Group 1 Prefunded Amount ”: The amount deposited in the Prefunding Account on the Closing Date to purchase additional Group 1 Mortgage Loans, which shall equal $28,231,242.14.

“Group 2 Adjusted Cap Rate” : For any Distribution Date and the Class 2-A1A1, Class 2-A1A2, Class 2-A1B and Class 2-A1C Certificates, the applicable Net WAC Cap for that Distribution Date, computed for this purposes by first reducing the Group 2 Net WAC by a per annum rate equal to (i) the quotient of (a) the product of the Net Deferred Interest, if any, on the Group 2 Mortgage Loans for the Distribution Date multiplied by (b) 12, and (ii) the aggregate Stated Principal Balance of the Group 2 Mortgage Loans as of the first day of the month before such Distribution Date (or in the case of the first Distribution Date, as of the Cut-Off Date).

“Group 2 Adjusted Net WAC” : For any Distribution Date, the excess of (i) the Group 2 Net WAC for such Distribution Date over (ii) the quotient of (a) the product of (I) the Net Deferred Interest for Loan Group 2 for such Distribution Date multiplied by (II) 12, divided by (b) the Pool Balance for Loan Group 2 for such Distribution Date.

“ Group 2 Class X Apportionment Rule ”: For purposes of calculating the interest distributable to the Class X Certificate from Loan Group 2 for any Accrual Period, an amount equal to the product of (a) the Monthly Interest Distributable Amount for the Class X Certificates for such Distribution Date and (b) a fraction, the numerator of which is the aggregate Stated Principal Balance of the Group 2 Mortgage Loans and the denominator of which is the aggregate Stated Principal Balance of all of the Mortgage Loans, in each case, as of the first day of the related Due Period.

“ Group 2 Mortgage Loan ”: A Mortgage Loan that is identified as such on the Mortgage Loan Schedule.

“ Group 2 Net WAC ”: With respect to any Distribution Date, the weighted average of the Net Loan Rates of the Group 2 Mortgage Loans as of the first day of the related Due Period (or, in the case of the first Distribution Date, as of the Cut-Off Date), weighted on the basis of the related Stated Principal Balances at the beginning of the related Due Period.

“ Group 2 Prefunded Amount ”: The amount deposited in the Prefunding Account on the Closing Date to purchase additional Group 2 Mortgage Loans, which shall equal $150,878,071.04.

“ Indemnification Agreement ”: The Indemnification Agreement dated as of the Closing Date among the Depositor, the Seller, Greenwich Capital Markets, Inc. and the Certificate Insurer, including any amendments and supplements thereto.

“ Indemnified Persons ”: The Trustee, the Depositor and the Custodian and their officers, directors, agents and employees and, with respect to the Trustee, any separate co-trustee and its officers, directors, agents and employees.

“ Independent ”: When used with respect to any specified Person, any such Person who (a) is in fact independent of the Depositor and its Affiliates, (b) does not have any direct financial interest in or any material indirect financial interest in the Depositor or any Affiliate thereof, and (c) is not connected with the Depositor or any Affiliate thereof as an officer, employee, promoter, underwriter, trustee, partner, director or Person performing similar functions; provided, however , that a Person shall not fail to be Independent of the Depositor or any Affiliate thereof merely because such Person is the beneficial owner of 1% or less of any class of securities issued by the Depositor or any Affiliate thereof.

“Independent Contractor” : Either (i) any Person that would be an “independent contractor” with respect to any REMIC formed hereby within the meaning of Section 856(d)(3) of the Code if such REMIC were a real estate investment trust (except that the ownership tests set forth in that section shall be considered to be met by any Person that owns, directly or indirectly, 35% or more of any Class of Certificates), so long as no REMIC formed hereby receives or derives any income from such Person and provided that the relationship between such Person and the applicable REMIC is at arm’s length, all within the meaning of Treasury Regulation Section 1.856-4(b)(5), or (ii) any other Person if the Trustee has received an Opinion of Counsel to the effect that the taking of any action in respect of any REO Property by such Person, subject to any conditions therein specified, that is otherwise herein contemplated to be taken by an Independent Contractor will not cause such REO Property to cease to qualify as “foreclosure property” within the meaning of Section 860G(a)(8) of the Code (determined without regard to the exception applicable for purposes of Section 860D(a) of the Code), or cause any income realized in respect of such REO Property to fail to qualify as Rents from Real Property.

“ Index ”: With respect to each Mortgage Loan and each Adjustment Date, the index specified in the related Mortgage Note.

“ Initial Certificate Principal Balance ”: With respect to any Certificate other than the Class X and Class A-R-II Certificates, the amount designated “Initial Certificate Principal Balance” on the face thereof.

“ Initial Certificate Notional Balance ”: With respect to the Class X Certificates, the amount designated “Initial Certificate Notional Balance” on the face thereof.

“ Initial Cut-Off Date ”: With respect to any Mortgage Loan other than a Qualified Substitute Mortgage Loan, the Close of Business in New York City on September 1, 2005. With respect to any Qualified Substitute Mortgage Loan, the date designated as such on the Mortgage Loan Schedule (as amended).

“ Initial Mortgage Loan ”: A Mortgage Loan conveyed to the Trust Fund on the Closing Date pursuant to this Agreement as identified on the Mortgage Loan Schedule delivered to the Trustee on the Closing Date.

“ Insurance Proceeds ”: With respect to any Mortgage Loan, proceeds of any title policy, hazard policy or other insurance policy covering a Mortgage Loan, to the extent such proceeds are not to be applied to the restoration of the related Mortgaged Property or released to the related Mortgagor in accordance with the Servicing Agreement.

“ Insured Amount ”: As defined in the Certificate Insurance Policy.

“ Insured Certificates ”: Each of the Class 1-A1B and Class 2-A1C Certificates.

“ Interest Distributable Amount ”: With respect to any Distribution Date and each Class of Certificates (other than the Class PO Certificates), the sum of (i) the Monthly Interest Distributable Amount for that Class and (ii) the Unpaid Interest Shortfall Amount for that Class.

“ Interest Shortfall ”: With respect to any Distribution Date and each Mortgage Loan that during the related Prepayment Period was the subject of a Principal Prepayment or a reduction of its Monthly Payment under the Relief Act, an amount determined as follows:

(a)

Principal Prepayments in part received during the relevant Prepayment Period : the difference between (i) one month’s interest at the applicable Net Loan Rate on the amount of such prepayment and (ii) the amount of interest for the calendar month of such prepayment (adjusted to the applicable Net Loan Rate) actually received with respect to such prepayment at the time of such prepayment; and

(b)

Principal Prepayments in full received during the relevant Prepayment Period : the difference between (i) one month’s interest at the applicable Net Loan Rate on the Stated Principal Balance of such Mortgage Loan immediately prior to such prepayment and (ii) the amount of interest for the calendar month of such prepayment (adjusted to the applicable Net Loan Rate) actually received with respect to such prepayment at the time of such prepayment; and

(c)

the amount of any Relief Act Reductions for such Distribution Date.

“ Late Payment Rate ”: The meaning given to such term in the Certificate Insurance Policy.

“ Latest Possible Maturity Date ”: As determined as of the Cut-Off Date, the Distribution Date following the third anniversary of the scheduled maturity date of the Mortgage Loan having the latest scheduled maturity date as of the Cut-Off Date.

“ Lender-Paid Mortgage Insurance Loan ”: Each Mortgage Loan identified as such in the Mortgage Loan Schedule.

“ Lender-Paid Mortgage Insurance Fee ”: As to any Distribution Date and each Lender Paid Mortgage Insurance Mortgage Loan, an amount equal to the product of the Lender-Paid Mortgage Insurance Fee Rate and the outstanding Principal Balance of such Mortgage Loan as of the first day of the related Due Period.

“ Lender-Paid Mortgage Insurance Fee Rate ”: For each Lender-Paid Mortgage Insurance Loan and any Distribution Date, the per annum rate required to be paid in connection with the related lender-paid mortgage insurance policy for such Mortgage Loan on such Distribution Date.

“LIBOR” : With respect to each Accrual Period, a per annum rate determined on the LIBOR Determination Date in the following manner by the Trustee on the basis of the “Interest Settlement Rate” set by the BBA for one-month United States dollar deposits, as such rates appear on the Telerate Page 3750, as of 11:00 a.m. (London time) on the related LIBOR Determination Date.

(a)

If on such a LIBOR Determination Date, the BBA’s Interest Settlement Rate does not appear on the Telerate Page 3750 as of 11:00 a.m. (London time), or if the Telerate Page 3750 is not available on such date, the Trustee will obtain such rate from Reuters’ “page LIBOR 01” or Bloomberg’s page “BBAM.” If such rate is not published for such LIBOR Determination Date, LIBOR for such date will be the most recently published Interest Settlement Rate. In the event that the BBA no longer sets an Interest Settlement Rate, the rate for such date will be determined on the basis of the rates at which one-month U.S. dollar deposits are offered by the Reference Banks at approximately 11:00 am (London time) on such date to prime banks in the London interbank market. In such event, the Trustee will request the principal London office of each of the Reference Banks to provide a quotation of its rate. If at least two such quotations are provided, the rate for that date will be the arithmetic mean of the quotations (rounded upwards if necessary to the nearest whole multiple of 1/16%). If fewer than two quotations are provided as requested, the rate for that date will be the arithmetic mean of the rates quoted by major banks in New York City, selected by the Trustee (after consultation with the Depositor), at approximately 11:00 a.m. (New York City time) on such date for one-month U.S. dollar loan to leading European banks.

(b)

The establishment of LIBOR by the Trustee and the Trustee’s subsequent calculation of the Pass-Through Rate applicable to the LIBOR Certificates for the relevant Accrual Period, in the absence of manifest error, will be final and binding.

“ LIBOR Business Day ”: Any day on which banks in London, England and The City of New York are open and conducting transactions in foreign currency and exchange.

“ LIBOR Certificates ”: The Class 1-A1A, Class 1-A1B, Class 2-A1A1, Class 2-A1A2, Class 2-A1B, Class 2-A1C, Class B-1, Class B-2, Class B-3, Class B-4, Class B-5, Class B-6 and Class B-7 Certificates.

“ LIBOR Determination Date ”: The second LIBOR Business Day immediately preceding the commencement of each Accrual Period for the LIBOR Certificates.

“ Liquidated Mortgage Loan ”: As to any Distribution Date, any Mortgage Loan in respect of which the Servicer has determined, in accordance with the servicing procedures specified herein, as of the end of the related Prepayment Period, that all Liquidation Proceeds that it expects to recover with respect to the liquidation of such Mortgage Loan or disposition of the related REO Property have been recovered.

“ Liquidation Event ”: With respect to any Mortgage Loan, any of the following events: (i) such Mortgage Loan is paid in full; (ii) a Final Recovery Determination is made as to such Mortgage Loan; or (iii) such Mortgage Loan is removed from the Trust Fund by reason of its being purchased, sold or replaced pursuant to or as contemplated hereunder. With respect to any REO Property, either of the following events: (i) a Final Recovery Determination is made as to such REO Property; or (ii) such REO Property is removed from the Trust Fund by reason of its being sold or purchased pursuant to Section 10.01 hereof or the applicable provisions of the Servicing Agreement.

“ Liquidation Expenses ”: With respect to a Mortgage Loan in liquidation, unreimbursed expenses paid or incurred by or for the account of the Servicer such expenses including (a) property protection expenses, (b) property sales expenses, (c) foreclosure and sale costs, including court costs and reasonable attorneys’ fees, and (d) similar expenses reasonably paid or incurred in connection with liquidation.

“ Liquidation Proceeds ”: With respect to any Mortgage Loan, the amount (other than amounts received in respect of the rental of any REO Property prior to REO Disposition) received by the Servicer as proceeds from the liquidation of such Mortgage Loan, as determined in accordance with the applicable provisions of the Servicing Agreement, other than Recoveries; provided that with respect to any Mortgage Loan or REO Property repurchased, substituted or sold pursuant to or as contemplated hereunder, or pursuant to the applicable provisions of the Servicing Agreement, “Liquidation Proceeds” shall also include amounts realized in connection with such repurchase, substitution or sale.

“ Loan Group ”: Any of Loan Group 1 or Loan Group 2, as the context requires.

“ Loan Group Balance ”: As to each Loan Group, the aggregate of the Stated Principal Balances of the Mortgage Loans in such Loan Group that were Outstanding Mortgage Loans at the time of determination.

“ Loan Group Collateral Balance ”: As to each Loan Group and any date of determination, the applicable Loan Group Balance plus the amount, if any, then on deposit in the Prefunding Account, with respect to the related Loan Group; provided that the Loan Group Collateral Balance as of the Initial Cut-off Date will include the Group 1 Prefunded Amount or Group 2 Prefunded Amount, as applicable.

“ Loan Group 1 ”: At any time, the Group 1 Mortgage Loans in the aggregate and any REO Properties acquired in respect thereof.

“ Loan Group 2 ”: At any time, the Group 2 Mortgage Loans in the aggregate and any REO Properties acquired in respect thereof.

“ Loan Rate ”: With respect to each Mortgage Loan, the annual rate at which interest accrues on such Mortgage Loan from time to time in accordance with the provisions of the related Mortgage Note.

“ Loan-to-Value Ratio ”: With respect to each Mortgage Loan and any date of determination, a fraction, expressed as a percentage, the numerator of which is the Principal Balance of the Mortgage Loan at such date of determination and the denominator of which is the Value of the related Mortgaged Property.

“ Lost Note Affidavit ”: With respect to any Mortgage Loan as to which the original Mortgage Note has been permanently lost or destroyed and has not been replaced, an affidavit from the Seller certifying that the original Mortgage Note has been lost, misplaced or destroyed (together with a copy of the related Mortgage Note and indemnifying the Trust against any loss, cost or liability resulting from the failure to deliver the original Mortgage Note) in the form of Exhibit H hereto.

“ Lower-Tier Interest ”: Any one of the interests in the Lower-Tier REMIC, as described in the Preliminary Statement.

“ Lower-Tier REMIC ”: As described in the Preliminary Statement.

“ Majority Certificateholders ”: The Holders of Certificates evidencing at least 51% of the Voting Rights.

“ Margin ”: On each Distribution Date on or prior to the Call Option Date, (i) with respect to the Class 1-A1A Certificates, 0.280% per annum, and on each Distribution Date after the Call Option Date, 0.560% per annum, (ii) with respect to the Class 1-A1B Certificates, 0.280% per annum, and on each Distribution Date after the Call Option Date, 0.560% per annum, (iii) with respect to the Class 2-A1A1 Certificates, 0.280% per annum, and on each Distribution Date after the Call Option Date, 0.560% per annum, (iv) with respect to the Class 2-A1A2 Certificates, 0.770% per annum, and on each Distribution Date after the Call Option Date, 1.540% per annum, (v) with respect to the Class 2-A1B Certificates, 0.360% per annum, and on each Distribution Date after the Call Option Date, 0.720% per annum, (vi) with respect to the Class 2-A1C Certificates, 0.280% per annum, and on each Distribution Date after the Call Option Date, 0.560% per annum, (vii) with respect to the Class B-1 Certificates, 0.600% per annum, and on each Distribution Date after the Call Option Date, 0.900% per annum, (viii) with respect to the Class B-2 Certificates, 1.000% per annum, and on each Distribution Date after the Call Option Date, 1.500% per annum, (ix) with respect to the Class B-3 Certificates, 1.650% per annum, and on each Distribution Date after the Call Option Date, 2.475% per annum, (x) with respect to the Class B-4 Certificates, 1.750% per annum, and on each Distribution Date after the Call Option Date, 2.625% per annum, (xi) with respect to the Class B-5 Certificates, 1.750% per annum, and on each Distribution Date after the Call Option Date, 2.625% per annum, (xii) with respect to the Class B-6 Certificates, 1.750% per annum, and on each Distribution Date after the Call Option Date, 2.625% per annum, and (xiii) with respect to the Class B-7 Certificates, 1.750% per annum, and on each Distribution Date after the Call Option Date, 2.625% per annum.

“ Maximum Loan Rate ”: With respect to each Mortgage Loan, the percentage set forth in the related Mortgage Note as the maximum Loan Rate thereunder.

“ MERS ”: Mortgage Electronic Registration Systems, Inc., a corporation organized and existing under the laws of the State of Delaware, or any successor thereto.

“ MERS Mortgage Loan ”: Any Mortgage Loan registered with MERS on the MERS System.

“ MERS® System ”: The system of recording transfers of mortgages electronically maintained by MERS.

“Middle-Tier Interest” : Any one of the interests in the Middle-Tier REMIC , as described in the Preliminary Statement.

“Middle-Tier REMIC” : As described in the Preliminary Statement.

“ MIN ”: The Mortgage Identification Number for any MERS Mortgage Loan.

“ MOM Loan ”: Any Mortgage Loan as to which MERS is acting as mortgagee, solely as nominee for the originator of such Mortgage Loan and its successors and assigns.

“ Monthly Interest Distributable Amount ”: With respect to each Class of Certificates (other than the Class PO Certificates) and any Distribution Date, the amount of interest accrued during the related Accrual Period at the lesser of the related Adjusted Cap Rate and the related Pass-Through Rate on the Class Certificate Principal Balance or Class Certificate Notional Balance, as applicable, immediately prior to that Distribution Date; provided, however , that for purposes of compliance with the REMIC Provisions, (A) the Monthly Interest Distributable Amount for each Class of Subordinate Certificates shall be calculated by reducing the related Pass-Through Rate by a per annum rate equal to (i) 12 times the Subordinate Class Expense Share for such Class divided by (ii) the Class Certificate Principal Balance of such Class as of the beginning of the related Accrual Period and (B) such Class shall be deemed to bear interest at such Pass-Through Rate as so reduced for federal income tax purposes.

“ Monthly Payment ”: With respect to any Mortgage Loan, the scheduled monthly payment of principal and interest on such Mortgage Loan that is payable by the related Mortgagor from time to time under the related Mortgage Note, determined, for the purposes of this Agreement: (a) after giving effect to any reduction in the amount of interest collectible from the related Mortgagor pursuant to the Relief Act; (b) without giving effect to any extension granted or agreed to by the related Servicer pursuant to the applicable provisions of the Servicing Agreement; and (c) on the assumption that all other amounts, if any, due under such Mortgage Loan are paid when due.

“ Moody’s ”: Moody’s Investors Service, Inc. and its successors.

“ Mortgage ”: The mortgage, deed of trust or other instrument creating a first lien on, or first priority security interest in, a Mortgaged Property securing a Mortgage Note.

“ Mortgage File ”: The mortgage documents listed in Section 2.01 hereof pertaining to a particular Mortgage Loan and any additional documents required to be added to the Mortgage File pursuant to this Agreement.

“ Mortgage Loan ”: Each mortgage loan (including Cooperative Loans) transferred and assigned to the Trustee pursuant to Section 2.01 or Section 2.03(d) hereof as from time to time held as a part of the Trust Fund, the Mortgage Loans so held being identified in the Mortgage Loan Schedule.

“ Mortgage Loan Purchase Agreement ”: The Mortgage Loan Purchase Agreement between the Seller and the Depositor, dated as of September 1, 2005, regarding the transfer of the Mortgage Loans by the Seller to or at the direction of the Depositor.

“ Mortgage Loan Schedule ”: As of any date, the list of Mortgage Loans included in the Trust Fund on such date, attached hereto as Schedule I. The Mortgage Loan Schedule shall be prepared by the Seller and shall set forth the following information with respect to each Mortgage Loan:

(i)

the Mortgage Loan identifying number;

(ii)

the Mortgagor’s name;

(iii)

the street address of the Mortgaged Property including the state and five-digit ZIP code;

(iv)

a code indicating whether the Mortgaged Property was represented by the borrower, at the time of origination, as being owner-occupied;

(v)

a code indicating whether the Residential Dwelling constituting the Mortgaged Property is (a) a detached single family dwelling, (b) a dwelling in a planned unit development, (c) a condominium unit, (d) a two- to four-unit residential property, (e) a townhouse or (f) other type of Residential Dwelling;

(vi)

if the related Mortgage Note permits the borrower to make Monthly Payments of interest only for a specified period of time, (a) the original number of such specified Monthly Payments and (b) the remaining number of such Monthly Payments as of the Cut-Off Date;

(vii)

the original months to maturity;

(viii)

the stated remaining months to maturity from the Cut-Off Date based on the original amortization schedule;

(ix)

the Loan-to-Value Ratio at origination;

(x)

the Loan Rate in effect immediately following the Cut-Off Date;

(xi)

the date on which the first Monthly Payment is or was due on the Mortgage Loan;

(xii)

the stated maturity date;

(xiii)

the Servicing Fee Rate, if any;

(xiv)

the last Due Date on which a Monthly Payment was actually applied to the unpaid Stated Principal Balance;

(xv)

the original principal balance of the Mortgage Loan;

(xvi)

the Stated Principal Balance of the Mortgage Loan on the Cut-Off Date and a code indicating the purpose of the Mortgage Loan (i.e., purchase financing, rate/term refinancing, cash-out refinancing);

(xvii)

the Index and Gross Margin specified in related Mortgage Note;

(xviii)

the next Adjustment Date, if applicable;

(xix)

the Maximum Loan Rate, if applicable;

(xx)

the Value of the Mortgaged Property;

(xxi)

the sale price of the Mortgaged Property, if applicable;

(xxii)

the product code;

(xxiii)

whether the Mortgage Loan is a Lender-Paid Mortgage Insurance Loan;

(xxiv)

the Servicer that is servicing each Mortgage Loan and the Originator of each Mortgage Loan;

(xxv)

the respective Loan Group; and

(xxvi)

the Custodian’s name, if there is more than one Custodian.

Information set forth in clauses (ii) and (iii) above regarding each Mortgagor and the related Mortgaged Property shall be confidential and the Trustee shall not disclose such information; provided that, notwithstanding anything herein to the contrary, the foregoing shall not be construed to prohibit (i) disclosure of any and all information that is or becomes publicly known, or information obtained by Trustee from sources other than the other parties hereto, (ii) disclosure of any and all information (A) if required to do so by any applicable, law, rule or regulation, (B) to any government agency or regulatory body having or claiming authority to regulate or oversee any respects of Trustee’s business or that of its affiliates, (C) pursuant to any subpoena, civil investigative demand or similar demand or request of any court, regulatory authority, arbitrator or arbitration to which Trustee or any affiliate or an officer, director, employer or shareholder thereof is a party or (D) to any affiliate, independent or internal auditor, agent, employee or attorney of Trustee having a need to know the same, provided that Trustee advises such recipient of the confidential nature of the information being disclosed, or (iii) any other disclosure authorized by the Depositor.

The Mortgage Loan Schedule, as in effect from time to time, shall also set forth the following information with respect to the Mortgage Loans in the aggregate and by Loan Group as of the Cut-Off Date: (1) the number of Mortgage Loans; (2) the current Principal Balance of the Mortgage Loans; (3) the weighted average Loan Rate of the Mortgage Loans; and (4) the weighted average remaining months to maturity of the Mortgage Loans. The Mortgage Loan Schedule shall be amended from time to time by the Seller in accordance with the provisions of this Agreement.

“ Mortgage Note ”: The original executed note or other evidence of indebtedness evidencing the indebtedness of a Mortgagor under a Mortgage Loan.

“ Mortgaged Property ”: Either of (x) the fee simple or leasehold interest in real property, together with improvements thereto including any exterior improvements to be completed within 120 days of disbursement of the related Mortgage Loan proceeds, or (y) in the case of a Cooperative Loan, the related Cooperative Shares and Proprietary Lease, securing the indebtedness of the Mortgagor under the related Mortgage Loan.

“ Mortgagor ”: The obligor on a Mortgage Note.

“MT1-Y Target Balance” : For any Distribution Date, the excess, if any, of (i) the quotient of (a) the product of (I) the principal balance of the MT1-Z Interest immediately preceding such Distribution Date multiplied by (II) the Group 1 Net WAC for such Distribution Date multiplied by (III) two, divided by (b) the Group 1 Adjusted Net WAC for such Distribution Date, over (ii) the principal balance of the MT1-Z Interest immediately preceding such Distribution Date.

“MT1-Z Target Balance” : For any Distribution Date, the excess, if any, of (i) the quotient of (a) the principal balance of the MT1-Y Interest immediately preceding such Distribution Date divided by (b) the difference between (I) 100% minus (II) the quotient of (A) the Group 1 Adjusted Net WAC for such Distribution Date divided by (B) the product of (1) two multiplied by (2) the Group 1 Net WAC for such Distribution Date, over (ii) the principal balance of the MT1-Y Interest immediately preceding such Distribution Date.

“MT2-Y Target Balance” : For any Distribution Date, the excess, if any, of (i) the quotient of (a) the product of (I) the principal balance of the MT2-Z Interest immediately preceding such Distribution Date multiplied by (II) the Group 2 Net WAC for such Distribution Date multiplied by (III) two, divided by (b) the Group 2 Adjusted Net WAC for such Distribution Date, over (ii) the principal balance of the MT2-Z Interest immediately preceding such Distribution Date.

“MT2-Z Target Balance” : For any Distribution Date, the excess, if any, of (i) the quotient of (a) the principal balance of the MT2-Y Interest immediately preceding such Distribution Date divided by (b) the difference between (I) 100% minus (II) the quotient of (A) the Group 2 Adjusted Net WAC for such Distribution Date divided by (B) the product of (1) two multiplied by (2) the Group 2 Net WAC for such Distribution Date, over (ii) the principal balance of the MT2-Y Interest immediately preceding such Distribution Date.

“MTB-Y Target Balance” : For any Distribution Date, the excess, if any, of (i) the quotient of (a) the product of (I) the principal balance of the MTB-Z Interest immediately preceding such Distribution Date multiplied by (II) the Subordinate Net WAC for such Distribution Date multiplied by (III) two, divided by (b) the Subordinate Adjusted Net WAC, over (ii) the principal balance of the MTB-Z Interest immediately preceding such Distribution Date.

“MTB-Z Target Balance” : For any Distribution Date, the excess, if any, of (i) the quotient of (a) the principal balance of the MTB-Y Interest immediately preceding such Distribution Date divided by (b) the difference between (I) 100% minus (II) the quotient of (A) the Subordinate Adjusted Net WAC for such Distribution Date divided by (B) the product of (1) two multiplied by (2) the Subordinate Net WAC for such Distribution Date, over (ii) the principal balance of the MTB-Y Interest immediately preceding such Distribution Date.

“ Net Deferred Interest ”: With respect to each Loan Group and any Distribution Date, the greater of (i) the excess, if any, of the Deferred Interest for the related Due Date over the aggregate amount of any principal prepayments in part or in full received during the related Prepayment Period and (ii) zero.

“ Net Interest Shortfall ”: With respect to any Distribution Date, the excess of Interest Shortfalls, if any, for such Distribution Date over Interest Shortfalls paid by the Servicer under the Servicing Agreement with respect to such Distribution Date.

“ Net Liquidation Proceeds ”: With respect to any Liquidated Mortgage Loan or any other disposition of related Mortgaged Property (including REO Property) the related Liquidation Proceeds net of Advances, Servicing Advances, the Expense Fee, and any other accrued and unpaid fees received and retained in connection with the liquidation of such Mortgage Loan or Mortgaged Property.

“ Net Loan Rate ”: With respect to any Mortgage Loan (or the related REO Property), as of any date of determination, a per annum rate of interest equal to the then applicable Loan Rate for such Mortgage Loan minus the related Servicing Fee Rate, the Custodial Fee Rate and, if applicable, the Lender Paid Mortgage Insurance Rate.

“ Net Maximum Loan Rate ”: With respect to any Mortgage Loan (or the related REO Property), as of any date of determination, a per annum rate of interest equal to the then applicable Maximum Loan Rate for such Mortgage Loan minus the related Servicing Fee Rate, the Custodial Fee Rate and, if applicable, the Lender Paid Mortgage Insurance Rate.

“ Net Maximum Rate Cap ”: For any Distribution Date and the Subordinate Certificates, the Net WAC Cap for the Subordinate Certificates, computed by assuming that each Mortgage Loan accrued interest at its Net Maximum Loan Rate.

“ Net Realized Losses ”: For any Class of Certificates and any Distribution Date, the excess of (i) the amount of Realized Losses previously allocated to that Class or PO Component over (ii) the amount of any increases to the Class Certificate Principal Balance of that Class or Component Principal Balance pursuant to Section 5.08 due to Recoveries.

“ Net WAC ”: With respect to any Distribution Date, the weighted average of the Net Loan Rates of the Mortgage Loans as of the first day of the related Due Period (or, in the case of the first Distribution Date, as of the Cut-Off Date), weighted on the basis of the related Stated Principal Balances at the beginning of the related Due Period.

“ Net WAC Cap ”: For any Distribution Date and the Class 1-A1A Certificates, the product of (i) the Group 1 Net WAC and (ii) a fraction, the numerator of which is 30 and the denominator of which is the actual number of days in the related Accrual Period for such Certificates.

For any Distribution Date and the Class 1-A1B Certificates, the product of (i) the excess of (a) the Group 1 Net WAC over (b) the Premium Rate attributable to the Class 1-A1B Certificates and (ii) a fraction, the numerator of which is 30 and the denominator of which is the actual number of days in the related Accrual Period for such Certificates.

For any Distribution Date and the Class 2-A1A1, Class 2-A1A2 and Class 2-A1B Certificates, the product of (i) the Group 2 Net WAC and (ii) a fraction, the numerator of which is 30 and the denominator of which is the actual number of days in the related Accrual Period for such Certificates.

For any Distribution Date and the Class 2-A1C Certificates, the product of (i) the excess of (a) the Group 2 Net WAC over (b) the Premium Rate attributable to the Class 2-A1C Certificates and (ii) a fraction, the numerator of which is 30 and the denominator of which is the actual number of days in the related Accrual Period for such Certificates.

For any Distribution Date and the Subordinate Certificates, the weighted average of the Group 1 Net WAC Cap and the Group 2 Net WAC Cap (computed for this purpose without regard to the adjustment applicable to the Class 1-A1B and Class 2-A1C Certificates), weighted on the basis of the Group Subordinate Amount for Loan Group 1 and for Loan Group 2.

“ Nonrecoverable ”: A determination by the Servicer in respect of a delinquent Mortgage Loan that if it were to make an Advance or an advance of a delinquent Monthly Payment, respectively, in respect thereof, such amount would not be recoverable from any collections or other recoveries (including Liquidation Proceeds) on such Mortgage Loan.

“ Notice ”: As defined in the Certificate Insurance Policy.

“ Officers’ Certificate ”: A certificate signed by the Chairman of the Board, the Vice Chairman of the Board, the President or a vice president (however denominated), or by the Treasurer, the Secretary, or one of the assistant treasurers or assistant secretaries of the Seller or the Depositor, as applicable.

“ One-Month LIBOR ”: The average of interbank offered rates for one-month U.S. dollar-denominated deposits in the London market based on quotations of major banks as published in The Wall Street Journal.

“ One-Month LIBOR Indexed ”: Indicates a Mortgage Loan that has an adjustable Loan Rate calculated on the basis of One-Month LIBOR.

“ Opinion of Counsel ”: A written opinion of counsel, who may, without limitation, be a salaried counsel for the Depositor or the Seller, acceptable to the Trustee, except that any opinion of counsel relating to (a) the qualification of any REMIC created hereunder as a REMIC or (b) compliance with the REMIC Provisions must be an opinion of Independent counsel.

“ Original Applicable Credit Support Percentage ”: With respect to each Class of Subordinate Certificates, the corresponding percentage set forth below opposite its Class designation:

Class B-1	10.75%
Class B-2	6.30%
Class B-3	4.30%
Class B-4	3.10%
Class B-5	2.70%
Class B-6	1.80%
Class B-7	0.80%

“ Original Class Certificate Notional Balance ”: With respect to the Class X Certificates, $914,182,417.

“ Original Class Certificate Principal Balance ”: With respect to each Class of Certificates, other than the Class X Certificates, the corresponding aggregate amount set forth opposite the Class designation of such Class in the Preliminary Statement.

“ Original Subordinated Principal Balance ”: The aggregate of the Original Class Certificate Principal Balances of the Classes of Subordinate Certificates.

“ Originator ”: Countrywide.

“ OTS ”: The Office of Thrift Supervision.

“ Outstanding Mortgage Loan ”: As of any Due Date, a Mortgage Loan with a Stated Principal Balance greater than zero, that was not the subject of a prepayment in full prior to such Due Date and that did not become a Liquidated Mortgage Loan prior to such Due Date.

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

“ Pass-Through Rate ”: With respect to each Class of Certificates (other than the Class PO Certificates) and any Distribution Date, the rate set forth below:

(i)

The Pass-Through Rate for the Class 1-A1A Certificates shall be equal to the least of (a) LIBOR plus the applicable Margin, (b) the applicable Net WAC Cap for that Distribution Date and (c) 11.00% per annum;

(ii)

The Pass-Through Rate for the Class 1-A1B Certificates shall be equal to the least of (a) LIBOR plus the applicable Margin, (b) the applicable Net WAC Cap for that Distribution Date and (c) 11.00% per annum;

(iii)

The Pass-Through Rate for the Class A-R Certificates shall be equal to the Group 1 Net WAC for that Distribution Date;

(iv)

The Pass-Through Rate for the Class 2-A1A1 Certificates shall be equal to the least of (a) LIBOR plus the applicable Margin, (b) the applicable Net WAC Cap for that Distribution Date and (c) 11.00% per annum;

(v)

The Pass-Through Rate for the Class 2-A1A2 Certificates shall be equal to the least of (a) LIBOR plus the applicable Margin, (b) the applicable Net WAC Cap for that Distribution Date and (c) 11.00% per annum;

(vi)

The Pass-Through Rate for the Class 2-A1B Certificates shall be equal to the least of (a) LIBOR plus the applicable Margin, (b) the applicable Net WAC Cap for that Distribution Date and (c) 11.00% per annum;

(vii)

The Pass-Through Rate for the Class 2-A1C Certificates shall be equal to the least of (a) LIBOR plus the applicable Margin, (b) the applicable Net WAC Cap for that Distribution Date and (c) 11.00% per annum;

(viii)

The Pass-Through Rate for the Class X Certificates on any Distribution Date shall be equal to the excess, if any, of (a) the Net WAC of the Mortgage Loans (in the case of the first three Distribution Dates only, multiplied by the quotient of the aggregate Principal Balance of those Mortgage Loans having payments that are included in the Available Distribution Amount on such Distribution Date divided by the Class X Certificate Notional Balance for such Distribution Date) over (b) a rate equal to the quotient of the (1) the product of (x) the sum of (i) the interest accrued at the applicable Pass-Through Rates on the Certificates (other then the Class X Certificates) for such Distribution Date and (ii) the Premium Amount on the Class 1-A1B and Class 2-A1C Certificates for such Distribution Date multiplied by (y) 12 divided by (2) the Class X Certificate Notional Balance for such Distribution Date; and

(ix)

The Pass-Through Rate for the Class B-1, Class B-2, Class B-3, Class B-4, Class B-5, Class B-6 and Class B-7 Certificates shall be equal to the least of (a) LIBOR plus the applicable Margin, (b) the applicable Net WAC Cap for that Distribution Date and (c) the Net Maximum Rate Cap for that Distribution Date.

“ Percentage Interest ”: With respect to any Certificate other than a Class A-R or Class A-R-II Certificate, a fraction, expressed as a percentage, the numerator of which is the Initial Certificate Principal Balance or Initial Certificate Notional Balance, as applicable, represented by such Certificate and the denominator of which is the Original Class Certificate Principal Balance or Original Class Certificate Notional Balance, as applicable, of the related Class. With respect to the Class A-R and Class A-R-II Certificates, 100%.

“ Permitted Investments ”: Any one or more of the following obligations or securities acquired at a purchase price of not greater than par, regardless of whether issued or managed by the Depositor, the Trustee or any of their respective Affiliates or for which an Affiliate of the Trustee serves as an advisor:

(i)

direct obligations of, or obligations fully guaranteed as to timely payment of principal and interest by, the United States or any agency or instrumentality thereof, provided such obligations are backed by the full faith and credit of the United States;

(ii)

(A) demand and time deposits in, certificates of deposit of, bankers’ acceptances issued by or federal funds sold by any depository institution or trust company (including the Trustee, or its agents acting in their respective commercial capacities) incorporated under the laws of the United States of America or any state thereof and subject to supervision and examination by federal and/or state authorities, so long as, at the time of such investment or contractual commitment providing for such investment, such depository institution or trust company or its ultimate parent has a short-term uninsured debt rating in one of the two highest available rating categories of the Rating Agency and (B) any other demand or time deposit or deposit which is fully insured by the FDIC;

(iii)

repurchase obligations with respect to any security described in clause (i) above and entered into with a depository institution or trust company (acting as principal) rated A or higher by the Rating Agency;

(iv)

securities bearing interest or sold at a discount that are issued by any corporation incorporated under the laws of the United States of America, the District of Columbia or any State thereof and that are rated by the Rating Agency in its highest long-term unsecured rating categories at the time of such investment or contractual commitment providing for such investment;

(v)

commercial paper (including both non-interest-bearing discount obligations and interest-bearing obligations) that is rated by the Rating Agency in its highest short-term unsecured debt rating available at the time of such investment;

(vi)

units of money market funds (which may be 12b-1 funds, as contemplated by the Commission under the Investment Company Act of 1940) registered under the Investment Company Act of 1940 including funds managed or advised by the Trustee or an affiliate thereof having the highest applicable rating from the Rating Agency; and

(vii)

if previously confirmed in writing to the Trustee, any other demand, money market or time deposit, or any other obligation, security or investment, as may be acceptable to the Rating Agency in writing as a permitted investment of funds backing securities having ratings equivalent to its highest initial ratings of the Senior Certificates;

provided , however , that no instrument described hereunder shall evidence either the right to receive (a) only interest with respect to the obligations underlying such instrument or (b) both principal and interest payments derived from obligations underlying such instrument and the interest and principal payments with respect to such instrument provide a yield to maturity at par greater than 120% of the yield to maturity at par of the underlying obligations.

“ Permitted Transferee ”: Any Transferee of a Residual Certificate other than a Disqualified Organization or a non-U.S. Person.

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

“ Physical Certificates ”: The Class A-R and Class A-R-II Certificates.

“ PO Component ”: The PO-1 Component and the PO-2 Component as applicable.

“ PO Component Balance ”: As of any Closing Date and each PO Component, $50; thereafter, as increased by amounts of Net Deferred Interest allocated to the Class X Certificates in respect of the related Mortgage Loans as set forth in Section 5.02 herein.

“ PO-1 Component ”: The Principal-Only Component of the Class PO Certificates that relates to the Group 1 Mortgage Loans.

“ PO-1 Component Principal Balance ”: As of the Closing Date, $50; thereafter, as increased by amounts of Net Deferred Interest allocated to the Class X Certificates in respect of the Group 1 Mortgage Loan as set forth in Section 5.02 herein.

“ PO-2 Component ”: The Principal-Only Component of the Class PO Certificates that relates to the Group 2 Mortgage Loans.

“ PO-2 Component Principal Balance ”: As of the Closing Date, $50; thereafter, as increased by amounts of Net Deferred Interest allocated to the Class X Certificates in respect of the Group 2 Mortgage Loan as set forth in Section 5.02 herein.

“ Pool Balance ”: As to any Distribution Date, the aggregate of the Stated Principal Balances, as of the Close of Business on the first day of the month preceding the month in which such Distribution Date occurs, of the Mortgage Loans that were Outstanding Mortgage Loans on that day.

“ Pool Collateral Balance ”: As to any Distribution Date, the Pool Balance plus the amount, if any, then on deposit in the Prefunding Account; provided that the Pool Collateral Balance as of the Initial Cut-off Date will include the Prefunded Amount.

“ Prefunded Amount ”: The amount deposited in the Prefunding Account on the Closing Date, which shall equal $179,109,313.18.

“ Prefunding Account ”: The separate Eligible Account created and maintained by the Trustee pursuant to Section 4.06 in the name of the Trustee for the benefit of the Certificateholders and designated “U.S. Bank National Association, in trust for registered holders of HarborView Mortgage Loan Trust 2005-13, Mortgage Loan Pass-Through Certificates, Series 2005-13.” Funds in the Prefunding Account shall be held in trust for the Certificateholders for the uses and purposes set forth in this Agreement and shall not be a part of any REMIC created hereunder; provided , however , that any investment income earned from Permitted Investments made with funds in the Prefunding Account shall be for the account of the Depositor.

“ Prefunding Period ”: The period from the Closing Date until the earliest of (i) the date on which the amount on deposit in the Prefunding Account is reduced to less than $100,000, (ii) an Event of Default occurs or (iii) December 30, 2005.

“ Premium Amount ”: Each of the Class 1-A1B Premium Amount or Class 2-A1C Premium Amount, as applicable.

“ Premium Proceeds ”: The amount by which the Termination Price paid in connection with the termination pursuant to Section 10.01 exceeds the sum of unpaid principal and accrued and unpaid interest on the Certificates (excluding any Basis Risk Shortfalls that remain unpaid) and unreimbursed Advances and Servicing Advances.

“ Premium Rate ”: 0.10% per annum.

“ Prepayment Penalty Amount ”: With respect to any Mortgage Loan and each Distribution Date, all premiums or charges, if any, paid by Mortgagors under the related Mortgage Notes as a result of full or partial Principal Prepayments collected and retained by the Servicer during the immediately preceding Prepayment Period, under the terms of the Servicing Agreement.

“ Prepayment Period ”: With respect to any Distribution Date the calendar month preceding the month in which such Distribution Date occurs.

“ Primary Insurance Policy ”: Mortgage guaranty insurance, if any, on an individual Mortgage Loan, as evidenced by a policy or certificate.

“ Principal Balance ”: As to any Mortgage Loan, other than a Liquidated Mortgage Loan, and any day, the related Cut-Off Date Principal Balance, minus all collections credited against the Principal Balance of such Mortgage Loan after the Cut-Off Date, as increased by the amount of any Deferred Interest added to the outstanding Principal Balance of such Mortgage Loan pursuant to the terms of the related Mortgage Note. For purposes of this definition, a Liquidated Mortgage Loan shall be deemed to have a Principal Balance equal to the Principal Balance of the related Mortgage Loan as of the final recovery of related Liquidation Proceeds and a Principal Balance of zero thereafter. As to any REO Property and any day, the Principal Balance of the related Mortgage Loan immediately prior to such Mortgage Loan becoming REO Property.

“ Principal Deficiency Amount ”: For any Distribution Date and for any Undercollateralized Group, the excess, if any, of the aggregate Class Certificate Principal Balance and Component Principal Balance of such Undercollateralized Group immediately prior to such Distribution Date over the sum of the Principal Balances of the Mortgage Loans in the related Loan Group immediately prior to such Distribution Date.

“ Principal Distribution Amount ”: With respect to each Loan Group and any Distribution Date, the sum of (a) each scheduled payment of principal collected or advanced on the related Mortgage Loans by the Servicer in respect of the related Due Period, (b) that portion of the Purchase Price, representing principal of any repurchased Mortgage Loan in that Loan Group, deposited to the Distribution Account during the related Prepayment Period, (c) the principal portion of any related Substitution Adjustments with respect to that Loan Group deposited in the Distribution Account during the related Prepayment Period, (d) the principal portion of all Insurance Proceeds received during the related Prepayment Period with respect to Mortgage Loans in that Loan Group that are not yet Liquidated Mortgage Loans, (e) the principal portion of all Net Liquidation Proceeds received during the related Prepayment Period with respect to Liquidated Mortgage Loans in that Loan Group, (f) all Principal Prepayments in part or in full on Mortgage Loans in that Loan Group applied by the Servicer during the related Prepayment Period, (g) all Recoveries related to that Loan Group received during the calendar month preceding the month of that Distribution Date, (h) with respect to the Distribution Date following the end of the Prefunding Period, any amounts remaining in the Prefunding Account (other than investment earnings thereon) and (i) on the Distribution Date on which the Trust is to be terminated pursuant to Section 10.01 hereof, that portion of the Termination Price in respect of principal for that Loan Group.

“ Principal-Only Component ”: Any of the PO-1 and PO-2 Component, as applicable.

“ Principal Prepayment ”: Any payment of principal made by the Mortgagor on a Mortgage Loan that is received in advance of its scheduled Due Date and that is not accompanied by an amount of interest representing the full amount of scheduled interest due on any Due Date in any month or months subsequent to the month of prepayment.

“ Private Certificates ”: The Class B-5, Class B-6, Class B-7 and Class A-R-II Certificates.

“ Private Placement Memorandum ”: The Private Placement Memorandum dated September 30, 2005 relating to the initial sale of the Class B-5, Class B-6 and Class B-7 Certificates.

“ Pro Rata Share ”: As to any Distribution Date and any Class of Subordinate Certificates, the portion of the Subordinate Principal Distribution Amount allocable to such Class, equal to the product of the (a) Subordinate Principal Distribution Amount on such date and (b) a fraction, the numerator of which is the related Class Certificate Principal Balance of that Class and the denominator of which is the aggregate of the Class Certificate Principal Balances of all the Classes of Subordinate Certificates.

“ Proprietary Lease ”: With respect to any Cooperative Unit, a lease or occupancy agreement between a Cooperative Corporation and a holder of related Cooperative Shares.

“ Prospectus ”: The Prospectus Supplement, together with the accompanying prospectus dated September 26, 2005, relating to the Senior Certificates and the Class B-1, Class B-2, Class B-3 and Class B-4 Certificates.

“ Prospectus Supplement ”: The Prospectus Supplement dated September 28, 2005 relating to the initial sale of the Senior Certificates and the Class B-1, Class B-2, Class B-3 and Class B-4 Certificates.

“ Purchase Agreement ”: The Master Mortgage Loan Purchase and Servicing Agreement, dated as of April 1, 2003, as amended by that certain amendment dated November 1, 2004, between GCFP, as purchaser, and Countrywide, as seller, as reconstituted by the Reconstitution Agreement, as the same may be amended from time to time, and any assignments and conveyances related to the Mortgage Loans.

“ Purchase Price ”: With respect to any Mortgage Loan or REO Property to be purchased pursuant to or as contemplated by Section 2.03 hereof, and as confirmed by an Officers’ Certificate from the Seller to the Trustee, an amount equal to the sum of (i) 100% of the Principal Balance thereof as of the date of purchase (or such other price as provided in Section 10.01), plus (ii) in the case of (x) a Mortgage Loan, accrued interest on such Principal Balance at the applicable Loan Rate (or if the servicer is repurchasing such Mortgage Loan, the Loan Rate minus the Servicing Fee Rate) from the Due Date as to which interest was last covered by a payment by the Mortgagor through the end of the calendar month in which the purchase is to be effected, and (y) an REO Property, the sum of (1) accrued interest on such Principal Balance at the applicable Loan Rate (or if the servicer is repurchasing such Mortgage Loan, the Loan Rate minus the Servicing Fee Rate) from the Due Date as to which interest was last covered by a payment by the Mortgagor plus (2) REO Imputed Interest for such REO Property for each calendar month commencing with the calendar month in which such REO Property was acquired and ending with the calendar month in which such purchase is to be effected, net of the total of all net rental income, Insurance Proceeds and Liquidation Proceeds that as of the date of purchase had been distributed as or to cover REO Imputed Interest, plus (iii) any unreimbursed Servicing Advances and any unpaid Expense Fees allocable to such Mortgage Loan or REO Property, plus (iv) in the case of a Mortgage Loan required to be purchased pursuant to Section 2.03 hereof, expenses reasonably incurred or to be incurred by the Trustee in respect of the breach or defect giving rise to the purchase obligation and plus (v) any costs and damages incurred by the Trust in connection with any violation by such Mortgage Loan of any predatory- or abusive-lending laws.

“ Qualified Insurer ”: A mortgage guaranty insurance company duly qualified as such under the laws of the state of its principal place of business and each state having jurisdiction over such insurer in connection with the insurance policy issued by such insurer, duly authorized and licensed in such states to transact a mortgage guaranty insurance business in such states and to write the insurance provided by the insurance policy issued by it, approved as a Fannie Mae-approved mortgage insurer and having a claims paying ability rating of at least “AA” or equivalent rating by a nationally recognized statistical rating organization. Any replacement insurer with respect to a Mortgage Loan must have at least as high a claims paying ability rating as the insurer it replaces had on the Closing Date.

“ Qualified Substitute Mortgage Loan ”: A mortgage loan substituted for a Deleted Mortgage Loan pursuant to the terms of this Agreement which must, on the date of such substitution, (i) have an outstanding principal balance, after application of all scheduled payments of principal and interest due during or prior to the month of substitution, not in excess of, and not more than 5% less than, the Principal Balance of the Deleted Mortgage Loan as of the Due Date in the calendar month during which the substitution occurs, (ii) have a maximum loan rate not less than the Maximum Loan Rate of the Deleted Mortgage Loan, (iii) have a gross margin equal to or greater than the Gross Margin of the Deleted Mortgage Loan, (iv) have the same Index as the Deleted Mortgage Loan, (v) have its next adjustment date not more than two months after the next Adjustment Date of the Deleted Mortgage Loan, (vi) have a remaining term to maturity not greater than (and not more than one year less than) that of the Deleted Mortgage Loan, (vii) be current as of the date of substitution, (viii) have a Loan-to-Value Ratio as of the date of substitution equal to or lower than the Loan-to-Value Ratio of the Deleted Mortgage Loan as of such date, (ix) have been underwritten or re-underwritten in accordance with the same or substantially similar underwriting criteria and guidelines as the Deleted Mortgage Loan, (x) is of the same or better credit quality as the Deleted Mortgage Loan and (xi) conform to each representation and warranty set forth in Section 2.04 hereof applicable to the Deleted Mortgage Loan. In the event that one or more mortgage loans are substituted for one or more Deleted Mortgage Loans, the amounts described in clause (i) hereof shall be determined on the basis of aggregate principal balances, the terms described in clause (vi) hereof shall be determined on the basis of weighted average remaining term to maturity and the Loan-to-Value Ratio described in clause (viii) hereof shall be satisfied as to each such mortgage loan and, except to the extent otherwise provided in this sentence, the representations and warranties described in clause (x) hereof must be satisfied as to each Qualified Substitute Mortgage Loan or in the aggregate, as the case may be.

“ Rating Agency ”: S&P, DBRS and Moody’s. If any rating agency or its successor shall no longer be in existence, “Rating Agency” shall include such nationally recognized statistical rating agency, or other comparable Person, as shall have been designated by the Depositor, notice of which designation shall be given to the Trustee.

“ Realized Loss ”: With respect to any Liquidated Mortgage Loan, the amount of loss realized equal to the portion of the Principal Balance remaining unpaid after application of all Net Liquidation Proceeds in respect of such Liquidated Mortgage Loan.

“ Recognition Agreement ”: With respect to any Cooperative Loan, an agreement between the related Cooperative Corporation and the originator of such Mortgage Loan to establish the rights of such originator in the related Cooperative Property.

“ Reconstitution Agreement ”: The reconstituted servicing agreement dated as of September 1, 2005 among the Seller, Countrywide and the Servicer and acknowledged by the Trustee.

“ Record Date ”: With respect to each Distribution Date (other than the initial Distribution Date) and the Class X and Class A-R Certificates, the last Business Day of the calendar month preceding the month in which such Distribution Date occurs. With respect to each Distribution Date (other than the initial Distribution Date) and the LIBOR Certificates, the last Business Day preceding that Distribution Date, unless any Class of LIBOR Certificates are no longer Book-Entry Certificates, in which case the Record Date for such Class of LIBOR Certificates shall be the last Business Day of the calendar month preceding the month in which that Distribution Date occurs. With respect to the initial Distribution Date and all Classes of Certificates, the Closing Date.

“ Recovery ”: With respect to any Distribution Date and Mortgage Loan that became a Liquidated Mortgage Loan in a month preceding the month prior to that Distribution Date and with respect to which the related Realized Loss was allocated to one or more Classes of Certificates or Principal-Only Components, an amount received in respect of such Liquidated Mortgage Loan during the prior calendar month, net of any reimbursable expenses.

“ Reference Bank ” shall be a leading bank engaged in transactions in Eurodollar deposits in the international Eurocurrency market, which shall not control, be controlled by, or be under common control with, the Trustee and shall have an established place of business in London. Until all of the LIBOR Certificates are paid in full, the Trustee will at all times retain at least four Reference Banks for the purpose of determining LIBOR with respect to each LIBOR Determination Date. The Trustee initially shall designate the Reference Banks (after consultation with the Depositor). If any such Reference Bank should be unwilling or unable to act as such or if the Trustee should terminate its appointment as Reference Bank, the Trustee shall promptly appoint or cause to be appointed another Reference Bank (after consultation with the Depositor). The Trustee shall have no liability or responsibility to any Person for (i) the selection of any Reference Bank for purposes of determining LIBOR or (ii) any inability to retain at least four Reference Banks which is caused by circumstances beyond its reasonable control.

“ Refinancing Mortgage Loan ”: Any Mortgage Loan originated in connection with the refinancing of an existing mortgage loan.

“ Regular Certificate ”: Any Class 1-A1A, Class 1-A1B, Class 2-A1A1, Class 2-A1A2, Class 2-A1B, Class 2-A1C, Class X, Class PO, Class B-1, Class B-2, Class B-3, Class B-4, Class B-5, Class B-6 or Class B-7 Certificate.

“ Regulation S ”: Regulation S promulgated under the Securities Act or any successor provision thereto, in each case as the same may be amended from time to time; and all references to any rule, section or subsection of, or definition or term contained in, Regulation S means such rule, section, subsection, definition or term, as the case may be, or any successor thereto, in each case as the same may be amended from time to time.

“ Regulation S Global Security ”: The meaning specified in Section 6.01.

“ Relief Act ”: The Servicemembers Civil Relief Act, as amended, or any similar state or local law.

“ Relief Act Reductions ”: With respect to any Distribution Date and any Mortgage Loan as to which there has been a reduction in the amount of interest collectible thereon for the most recently ended Due Period as a result of the application of the Relief Act, the amount, if any, by which (i) interest collectible on that Mortgage Loan during such Due Period is less than (ii) one month’s interest on the Stated Principal Balance of such Mortgage Loan at the Loan Rate for such Mortgage Loan before giving effect to the application of the Relief Act.

“ REMIC ”: A “real estate mortgage investment conduit” within the meaning of Section 860D of the Code.

“ REMIC Opinion ”: An Independent Opinion of Counsel, to the effect that the proposed action described therein would not, under the REMIC Provisions, (i) cause any REMIC created hereunder to fail to qualify as a REMIC while any regular interest in such REMIC is outstanding, (ii) result in a tax on prohibited transactions with respect to any REMIC created hereunder or (iii) constitute a taxable contribution to any REMIC created hereunder after the Startup Day.

“ REMIC Provisions ”: Provisions of the federal income tax law relating to real estate mortgage investment conduits which appear at Section 860A through 860G of Subchapter M of Chapter 1 of the Code, and related provisions, and regulations and rulings promulgated thereunder, as the foregoing may be in effect from time to time.

“ Remittance Report ”: The Servicer’s Remittance Report to the Trustee pursuant to the Servicing Agreement providing information with respect to each Mortgage Loan which is provided no later than the 10 ^th calendar day of each month and which shall contain such information as may be agreed upon by the Trustee and which shall be sufficient to enable the Trustee to prepare the related Distribution Date Statement.

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

“ REO Account ”: The account or accounts maintained by the Servicer in respect of an REO Property pursuant to the Servicing Agreement.

“ REO Disposition ”: The sale or other disposition of an REO Property on behalf of the Trust.

“ REO Imputed Interest ”: As to any REO Property, for any calendar month during which such REO Property was at any time part of the Trust Fund, one month’s interest at the applicable Net Loan Rate on the Principal Balance of such REO Property (or, in the case of the first such calendar month, of the related Mortgage Loan if appropriate) as of the Close of Business on the Due Date in such calendar month.

“ REO Principal Amortization ”: With respect to any REO Property, for any calendar month, the excess, if any, of (a) the aggregate of all amounts received in respect of such REO Property during such calendar month, whether in the form of rental income, sale proceeds (including, without limitation, that portion of the Termination Price paid in connection with a purchase of all of the Mortgage Loans and REO Properties pursuant to Section 10.01 hereof that is allocable to such REO Property) or otherwise, net of any portion of such amounts (i) payable pursuant to the applicable provisions of the Servicing Agreement in respect of the proper operation, management and maintenance of such REO Property or (ii) payable or reimbursable to the Servicer pursuant to the applicable provisions of the Servicing Agreement for unpaid Servicing Fees in respect of the related Mortgage Loan and unreimbursed Servicing Advances and Advances in respect of such REO Property or the related Mortgage Loan, over (b) the REO Imputed Interest in respect of such REO Property for such calendar month.

“ REO Property ”: A Mortgaged Property acquired by the Servicer on behalf of the Trust Fund through foreclosure or deed-in-lieu of foreclosure in accordance with the applicable provisions of the Servicing Agreement.

“Request for Release” : A release signed by a Servicing Officer, in the form of Exhibit F attached hereto.

“ Required Reserve Fund Deposit ”: With respect to the Class X Certificates and any Distribution Date, an amount equal to the lesser of (i) the Interest Distributable Amount for the Class X Certificates for such Distribution Date (after giving effect to such Certificate’s share of any Net Deferred Interest and after any reduction in the Interest Distributable Amount due to Net Interest Shortfalls on such Distribution Date) and (ii) the amount required to bring the balance on deposit in the Basis Risk Reserve Fund up to an amount equal to the Basis Risk Shortfalls for such Distribution Date with respect to the LIBOR Certificates (and with respect to the Class 1-A1A, Class 1-A1B, Class 2-A1A1, Class 2-A1A2, Class 2-A1B and Class 2-A1C Certificates, after giving effect to distributions of payments made pursuant to the Yield Maintenance Agreements).

“ Residential Dwelling ”: Any one of the following: (i) a detached one-family dwelling, (ii) a detached two- to four-family dwelling, (iii) a one-family dwelling unit in a condominium project, (iv) a manufactured home, (v) a cooperative unit or (vi) a detached one-family dwelling in a planned unit development, none of which is a mobile home.

“ Residual Certificate ”: Each of the Class A-R and the Class A-R-II Certificates.

“ Responsible Officer ”: When used with respect to the Trustee or any director, the President, any vice president, any assistant vice president, any associate or any other officer of the Trustee customarily performing functions similar to those performed by any of the above designated officers and, with respect to a particular matter, to whom such matter is referred because of such officer’s knowledge of and familiarity with the particular subject.

“ Restricted Classes ”: As defined in Section 5.01(d).

“ Restricted Global Security ”: As defined in Section 6.01.

“ Sarbanes-Oxley Certification ”: A written certification covering, among other things, servicing of the Mortgage Loans by the Servicer and signed by an officer of the Depositor that complies with (i) the Sarbanes-Oxley Act of 2002, as amended from time to time, and (ii) the February 21, 2003 Statement by the Staff of the Division of Corporation Finance of the Securities and Exchange Commission Regarding Compliance by Asset-Backed Issuers with Exchange Act Rules 13a-14 and 15d-14, as in effect from time to time; provided that if, after the Closing Date (a) the Sarbanes-Oxley Act of 2002 is amended, (b) the Statement referred to in clause (ii) is modified or superseded by any subsequent statement, rule or regulation of the Securities and Exchange Commission or any statement of a division thereof, or (c) any future releases, rules and regulations are published by the Securities and Exchange Commission from time to time pursuant to the Sarbanes-Oxley Act of 2002, which in any such case affects the form or substance of the required certification and results in the required certification being, in the reasonable judgment of the Depositor, materially more onerous than the form of the required certification as of the Closing Date, the Sarbanes-Oxley Certification shall be as agreed to by the Depositor and the Seller following a negotiation in good faith to determine how to comply with any such new requirements.

“ S&P ”: Standard & Poor’s Ratings Services, a division of The McGraw-Hill Companies, Inc., and any successor thereto.

“ Security Agreement ”: With respect to any Cooperative Loan, the agreement between the owner of the related Cooperative Shares and the originator of the related Mortgage Note that defines the terms of the security interest in such Cooperative Shares and the related Proprietary Lease.

“ Seller ”: GCFP, in its capacity as seller under this Agreement.

“ Senior Certificate ”: Any one of the Class 1-A1A, Class 1-A1B, Class 2-A1A1, Class 2-A1A2, Class 2-A1B, Class 2-A1C, Class X, Class PO or Class A-R Certificates.

“ Senior Certificate Group ”: Any of (a) the Class 1-A1A, Class 1-A1B and Class A-R Certificates with respect to Loan Group 1 and (b) the Class 2-A1A1, Class 2-A1A2, Class 2-A1B and Class 2-A1C Certificates with respect to Loan Group 2.

“ Senior Certificateholder ”: Any Holder of a Senior Certificate.

“ Senior Credit Support Depletion Date ”: The date on which the Class Certificate Principal Balance of each Class of Subordinate Certificates has been reduced to zero.

“ Senior Percentage ”: With respect to each Loan Group and any Distribution Date, the percentage equivalent of a fraction the numerator of which is the aggregate of the Class Certificate Principal Balances and Component Principal Balances of the Classes of Senior Certificates and Principal-Only Components relating to that Loan Group immediately prior to such Distribution Date and the denominator of which is the Loan Group Collateral Balance in the related Loan Group for such Distribution Date; provided, however , that on any Distribution Date after a Senior Termination Date has occurred with respect to the Senior Certificates and Principal-Only Component related to a Loan Group, the Senior Percentage for the related Loan Group will be equal to 0% and; provided, further , that on any Distribution Date after a Senior Termination Date has occurred with respect to the Senior Certificates and Principal-Only Component related to three Loan Groups, the Senior Percentage of the Loan Group related to the remaining Senior Certificates and Principal-Only Component is the percentage equivalent of a fraction, the numerator of which is the aggregate of the Certificate Principal Balances of each remaining Class of Senior Certificates and Principal-Only Component immediately prior to such date and the denominator of which is the aggregate of the Certificate Principal Balances of all Classes of Certificates, immediately prior to such date.

“ Senior Prepayment Percentage ”: With respect to each Loan Group and any Distribution Date before the Distribution Date in October 2015, 100%. Except as provided herein, the Senior Prepayment Percentage for each Loan Group for any Distribution Date occurring on or after the tenth anniversary of the first Distribution Date will be as follows: (i) from October 2015 through September 2016, the related Senior Percentage plus 70% of the related Subordinate Percentage for that Distribution Date; (ii) from October 2016 through September 2017, the related Senior Percentage plus 60% of the related Subordinate Percentage for that Distribution Date; (iii) from October 2017 through September 2018, the related Senior Percentage plus 40% of the related Subordinate Percentage for that Distribution Date; (iv) from October 2018 through September 2019, the related Senior Percentage plus 20% of the related Subordinate Percentage for that Distribution Date; and (v) from and after October 2019, the related Senior Percentage for that Distribution Date; provided, however, that there shall be no reduction in the Senior Prepayment Percentage for any Loan Group unless the Step Down Conditions are satisfied; and provided, further , that if on any Distribution Date occurring on or after the Distribution Date in October 2015, the Senior Percentage for any Loan Group exceeds the initial Senior Percentage for such Loan Group, the related Senior Prepayment Percentage for that Distribution Date will again equal 100%.

Notwithstanding the above, (i) if on any Distribution Date prior to October 2008 the Two Times Test is satisfied, the Senior Prepayment Percentage for each Loan Group will equal the related Senior Percentage for such Distribution Date plus 50% of an amount equal to 100% minus the related Senior Percentage for such Distribution Date and (ii) if on any Distribution Date in or after October 2008 the Two Times Test is satisfied, the Senior Prepayment Percentage for each Loan Group will equal the related Senior Percentage for such Distribution Date.

“ Senior Principal Distribution Amount ”: With respect to each Loan Group and any Distribution Date, the sum of:

(1)

the related Senior Percentage of all amounts described in clauses (a) through (d) and clause (h) of the definition of “Principal Distribution Amount” for that Distribution Date;

(2)

with respect to each Mortgage Loan in that Loan Group which became a Liquidated Mortgage Loan during the related Prepayment Period, the lesser of

(x)

the related Senior Percentage of the Stated Principal Balance of that Mortgage Loan; and

(y)

the related Senior Prepayment Percentage of the amount of the Net Liquidation Proceeds allocable to principal received with respect to that Mortgage Loan

(3)

the related Senior Prepayment Percentage of the amounts described in clauses (f) and (g) of the definition of “Principal Distribution Amount.”

“ Senior Termination Date ”: For each Senior Certificate Group and Principal-Only Component, the Distribution Date on which the aggregate of the Class Certificate Principal Balances and related Component Principal Balance of the related Senior Certificates and Principal-Only Component is reduced to zero.

“ Servicer ”: Countrywide Home Loans Servicing LP, as primary servicer of the Mortgage Loans as set forth and as individually defined in the Mortgage Loan Schedule hereto and any successors thereto.

“ Servicer Remittance Date ”: The “Remittance Date” defined in the Servicing Agreement.

“ Servicing Account ”: Any account established and maintained by the Servicer with respect to the related Mortgage Loans and any REO Property, pursuant to the terms of the Servicing Agreement.

“ Servicing Addendum ”: As defined in the Servicing Agreement.

“ Servicing Advances ”: With respect to the Servicer, all customary, reasonable and necessary “out of pocket” costs and expenses (including reasonable attorneys’ fees and expenses) incurred by the Servicer in the performance of its servicing obligations hereunder, including, but not limited to, the cost of (i) the preservation, restoration, inspection and protection of the Mortgaged Property, (ii) any enforcement or judicial proceedings, including foreclosures, (iii) the management and liquidation of the REO Property and (iv) compliance with the obligations under Article III hereof or the Servicing Agreement.

“ Servicing Agreement ”: The Master Mortgage Loan Purchase and Servicing Agreement, dated as of April 1, 2003, as amended by that certain amendment dated November 1, 2004, between GCFP, as purchaser, and Countrywide, as seller, as reconstituted by the Reconstitution Agreement, as the same may be amended from time to time, and any assignments and conveyances related to the Mortgage Loans.

“ Servicing Fee ”: With respect to the Servicer and each Mortgage Loan and for any calendar month, the fee payable to the Servicer determined pursuant to the Servicing Agreement.

“ Servicing Fee Rate ”: With respect to each Mortgage Loan, the per annum servicing fee rate set forth on the Mortgage Loan Schedule.

“ Servicing Officer”: Any officer of the Servicer involved in, or responsible for, the administration and servicing of Mortgage Loans, whose name and specimen signature appear on a list of servicing officers furnished to the Trustee and the Depositor on the Closing Date, as such list may from time to time be amended.

“ Startup Day ”: As defined in Section 9.01(b) hereof.

“ Stated Principal Balance ”: With respect to any Mortgage Loan: (a) as of the Distribution Date in October 2005, the Cut-Off Date Principal Balance of such Mortgage Loan, (b) thereafter as of any date of determination up to and including the Distribution Date on which the proceeds, if any, of a Liquidation Event with respect to such Mortgage Loan would be distributed, the Cut-Off Date Principal Balance of such Mortgage Loan minus , in the case of each Mortgage Loan, the sum of (i) the principal portion of each Monthly Payment due on a Due Date subsequent to the Cut-Off Date, whether or not received, (ii) all Principal Prepayments received after the Cut-Off Date, to the extent distributed pursuant to Section 5.01 before such date of determination and (iii) all Liquidation Proceeds and Insurance Proceeds applied by the Servicer as recoveries of principal in accordance with the applicable provisions of the Servicing Agreement, to the extent distributed pursuant to Section 5.01 such date of determination; and (c) as of any date of determination subsequent to the Distribution Date on which the proceeds, if any, of a Liquidation Event with respect to such Mortgage Loan would be distributed, zero; provided that , such Stated Principal Balance shall be increased by the amount of any Deferred Interest added to the outstanding Principal Balance of such Mortgage Loan pursuant to the terms of the related Mortgage Note. With respect to any REO Property: (x) as of any date of determination up to and including the Distribution Date on which the proceeds, if any, of a Liquidation Event with respect to such REO Property would be distributed, an amount (not less than zero) equal to the Stated Principal Balance of the related Mortgage Loan as of the date on which such REO Property was acquired on behalf of the Trust, minus the aggregate amount of REO Principal Amortization in respect of such REO Property for all previously ended calendar months, to the extent distributed pursuant to Section 5.01 before such date of determination; and (y) as of any date of determination subsequent to the Distribution Date on which the proceeds, if any, of a Liquidation Event with respect to such REO Property would be distributed, zero.

“ Step Down Conditions ”: As of the first Distribution Date as to which any decrease in any Senior Prepayment Percentage applies, (i) the outstanding Principal Balance of all Mortgage Loans 60 days or more Delinquent (including Mortgage Loans in REO and foreclosure) (averaged over the preceding six month period), as a percentage of the aggregate of the Class Certificate Principal Balances of the Classes of Subordinate Certificates on such Distribution Date, does not equal or exceed 50% and (ii) cumulative Realized Losses with respect to all of the Mortgage Loans do not exceed:

for any Distribution Date on or after the tenth anniversary of the first Distribution Date, 30% of the aggregate Certificate Principal Balance of the Subordinate Certificates as of the Closing Date,

for any Distribution Date on or after the eleventh anniversary of the first Distribution Date, 35% of the aggregate Certificate Principal Balance of the Subordinate Certificates as of the Closing Date,

for any Distribution Date on or after the twelfth anniversary of the first Distribution Date, 40% of the aggregate Certificate Principal Balance of the Subordinate Certificates as of the Closing Date,

for any Distribution Date on or after the thirteenth anniversary of the first Distribution Date, 45% of the aggregate Certificate Principal Balance of the Subordinate Certificates as of the Closing Date, and

for any Distribution Date on or after the fourteenth anniversary of the first Distribution Date, 50% of the aggregate Certificate Principal Balance of the Subordinate Certificates as of the Closing Date.

“ Strike Rate ”: With respect to any Distribution Date and each Yield Maintenance Agreement, the strike rate listed on Schedule III hereto.

“ Subordinate Adjusted Cap Rate ”: For any Distribution Date and the Class B-1, Class B-2, Class B-3, Class B-4, Class B-5, Class B-6 and Class B-7 Certificates, the weighted average of the Group 1 Adjusted Cap Rate and the Group 2 Adjusted Cap Rate (computed for this purpose without regard to the adjustment applicable to the Class 1-A1B and Class 2-A1C Certificates), weighted on the basis of the Group Subordinate Amount for Loan Group 1 and Loan Group 2.

“Subordinate Adjusted Net WAC” : For any Distribution Date, the weighted average of the Group 1 Adjusted Net WAC and the Group 2 Adjusted Net WAC for such Distribution Date, weighted on the basis of the Subordinate Component for Loan Group 1 and Loan Group 2 for such Distribution Date.

“ Subordinate Certificate ”: Any one of the Class B-1, Class B-2, Class B-3, Class B-4, Class B-5, Class B-6 or Class B-7 Certificates.

“ Subordinate Class Expense Share ”: For each Class of Subordinate Certificates and each Accrual Period, the Subordinate Class Expense Share shall be allocated in reverse order of their respective numerical Class designations (beginning with the Class of Subordinate Certificates with the highest numerical Class designation) and will be an amount equal to (i) the sum of, without duplication, (a) the amounts paid to the Trustee from the Trust Fund during such Accrual Period pursuant to Section 8.05 hereof to the extent such amounts were paid for ordinary or routine expenses and were not taken into account in computing the Net Loan Rate of any Mortgage Loan and (b) amounts described in clause (y) of the definition of Available Funds herein to the extent such amounts were paid for ordinary or routine expenses and were not taken into account in computing the Net Mortgage Rate of any Mortgage Loan minus (ii) amounts taken into account under clause (i) of this definition in determining the Subordinate Class Expense Share of any Class of Subordinate Certificates having a higher numeric designation. In no event, however, shall the Subordinate Class Expense Share for any Class of Subordinate Certificates and any Accrual Period exceed the product of (i) (a) the lesser of the Pass-Through Rate for such Class or the applicable Adjusted Cap Rate, divided by (b) 12 and (ii) the Class Certificate Principal Amount of such Class of Subordinate Certificates as of the beginning of the related Accrual Period.

“ Subordinate Component ”: With respect to each Loan Group and any Distribution Date, the excess of the sum of the related Loan Group Balance for such Distribution Date plus any amount on deposit in the Prefunding Account related to such Loan Group over the aggregate Class Certificate Principal Balance and Component Principal Balance of the related Senior Certificate Group and Principal-Only Component immediately preceding such Distribution Date. The designation “1” and “2” appearing after the corresponding Loan Group designation is used to indicate a Subordinate Component allocable to Loan Group 1 and Loan Group 2, respectively.

“Subordinate Net WAC” : For any Distribution Date, the weighted average of the Group 1 Net WAC and the Group 2 Net WAC for such Distribution Date, weighted on the basis of the Subordinate Component for Loan Group 1 and Loan Group 2 for such Distribution Date.

“ Subordinate Percentage ”: With respect to each Loan Group and any Distribution Date, the difference between 100% and the related Senior Percentage for such Loan Group and Distribution Date; provided, however , that on any Distribution Date occurring after a Senior Termination Date has occurred with respect to the Senior Certificates and Principal-Only Components related to two Loan Groups, the Subordinate Percentage will represent the entire interest of the Subordinate Certificates in the Mortgage Loans and will equal the difference between 100% and the related Senior Percentage for such Distribution Date.

“ Subordinate Prepayment Percentage ”: With respect to each Loan Group and any Distribution Date, the difference between 100% and the related Senior Prepayment Percentage for such Distribution Date.

“ Subordinate Principal Distribution Amount ”: With respect to each Loan Group and any Distribution Date, an amount equal to the sum of for both Loan Groups:

(1)

the related Subordinate Percentage of all amounts described in clauses (a) through (d) of the definition of “Principal Distribution Amount” for that Loan Group and Distribution Date;

(2)

with respect to each Mortgage Loan in such Loan Group that became a Liquidated Mortgage Loan during the related Prepayment Period, the amount of the Net Liquidation Proceeds allocated to principal received with respect thereto remaining after application thereof pursuant to clause (2) of the definition of “Senior Principal Distribution Amount” for that Loan Group and Distribution Date, up to the related Subordinate Percentage of the Stated Principal Balance of such Mortgage Loan; and

(3)

the related Subordinated Prepayment Percentage of all amounts described in clause (f) of the definition of “Principal Distribution Amount” for such Loan Group and Distribution Date;

provided, however , that on any Distribution Date occurring after a Senior Termination Date has occurred with respect to the Senior Certificates and Principal-Only Component related to a Loan Group, the Subordinate Principal Distribution Amount will not be calculated by Loan Group but will equal the amount calculated pursuant to the formula set forth above based on the applicable Subordinate Percentage or Subordinate Prepayment Percentage, as applicable, for such Distribution Date with respect to all the Mortgage Loans rather than the Mortgage Loans in the related Loan Group only.

“ Subsequent Cut-off Date ”: With respect to any Subsequent Mortgage Loan, the later of (a) the first day of the month of the conveyance of such Mortgage Loan to the Trust after giving effect to the monthly payment on that date or (b) the date such Mortgage Loan was originated.

“ Subsequent Mortgage Loan ”: Any Mortgage Loan other than an Initial Mortgage Loan conveyed to the Trust Fund pursuant to Section 2.01 hereof and to a Subsequent Transfer Agreement, which Mortgage Loan shall be listed on the revised Mortgage Loan Schedule delivered pursuant to this Agreement and on Schedule A to such Subsequent Transfer Agreement. When used with respect to a single Subsequent Transfer Date, Subsequent Mortgage Loan shall mean a Subsequent Mortgage Loan conveyed to the Trust on that Subsequent Transfer Date.

“ Subsequent Transfer Agreement ”: A Subsequent Transfer Agreement substantially in the form of Exhibit Q hereto, executed and delivered by and among the Depositor, the Seller and the Trustee and acknowledged by the Servicer, as provided in Section 2.01(b) hereof.

“ Subsequent Transfer Date ”: For any Subsequent Transfer Agreement, the date the related Subsequent Mortgage Loans are transferred to the Trust pursuant to the related Subsequent Transfer Agreement.

“ Substitution Adjustment ”: As defined in Section 2.03(d) hereof.

“ Tax Returns ”: The federal income tax return on Internal Revenue Service Form 1066, U.S. Real Estate Mortgage Investment Conduit Income Tax Return, including Schedule Q thereto, Quarterly Notice to Residual Interest Holders of the REMIC Taxable Income or Net Loss Allocation, or any successor forms, to be filed on behalf of every REMIC created hereunder under the REMIC Provisions, together with any and all other information reports or returns that may be required to be furnished to the Certificateholders or filed with the Internal Revenue Service or any other governmental taxing authority under any applicable provisions of federal, state or local tax laws.

“ Termination Price ”: As defined in Section 10.01(a) hereof.

“ Transfer ”: Any direct or indirect transfer or sale of any Ownership Interest in a Residual Certificate.

“ Transfer Affidavit ”: As defined in Section 6.02(e)(ii) hereof.

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

“ Trust ”: HarborView Mortgage Loan Trust 2005-13, the trust created hereunder.

“ Trust Fund ”: The segregated pool of assets subject hereto, constituting the primary trust created hereby and to be administered hereunder, with respect to which a REMIC election is to be made, such Trust Fund consisting of: (i) such Mortgage Loans as from time to time are subject to this Agreement, together with the Mortgage Files relating thereto, and together with all collections thereon and proceeds thereof, excluding Prepayment Penalty Amounts, (ii) any REO Property, together with all collections thereon and proceeds thereof, (iii) the Trustee’s rights with respect to the Mortgage Loans under all insurance policies required to be maintained pursuant to this Agreement and any proceeds thereof, (iv) the Depositor’s rights under the Mortgage Loan Purchase Agreement (including any security interest created thereby); (v) the Distribution Account (subject to the last sentence of this definition), any REO Account and such assets that are deposited therein from time to time and any investments thereof, together with any and all income, proceeds and payments with respect thereto; (vi) all right, title and interest of the Seller in and to the Servicing Agreement; (vii) the Basis Risk Reserve Fund, the Prefunding Account and the Yield Maintenance Account; (viii) the rights of the Trust under the Yield Maintenance Agreements; and (ix) the Certificate Insurance Policy. Notwithstanding the foregoing, however, the Trust Fund specifically excludes (1) all payments and other collections of interest and principal due on the Mortgage Loans on or before the Cut-Off Date and principal received before the Cut-Off Date (except any principal collected as part of a payment due after the Cut-Off Date) and (2) all income and gain realized from Permitted Investments of funds on deposit in the Distribution Account.

“ Trustee ”: U.S. Bank National Association, its successors and assigns, or any successor trustee appointed as provided herein.

“ Trustee Certification ”: A certification of the Trustee substantially in the form of Exhibit P.

“ Two Times Test ”: As to any Distribution Date, (i) the Aggregate Subordinate Percentage is at least two times the Aggregate Subordinate Percentage as of the Closing Date; (ii) the aggregate of the Stated Principal Balances of all Mortgage Loans Delinquent 60 days or more (including Mortgage Loans in REO and foreclosure) (averaged over the preceding six-month period), as a percentage of the aggregate of the Class Certificate Principal Balances of the Subordinate Certificates, does not equal or exceed 50%; and (iii) on or after the Distribution Date in October 2008, cumulative Realized Losses do not exceed 30% of the Original Subordinated Principal Balance or prior to the Distribution Date in October 2008, cumulative Realized Losses do not exceed 20% of the Original Subordinated Principal Balance.

“ Undercollateralized Group ”: With respect to any Distribution Date and Loan Group, as to which the aggregate Class Certificate Principal Balance and Component Principal Balance of the related classes of Senior Certificates and Principal-Only Component, after giving effect to distributions pursuant to Section 5.01(a) on such date, is greater than the Loan Group Balance of the related Loan Group for such Distribution Date.

“ Underwriter’s Exemption ”: Prohibited Transaction Exemption 90-59 (Exemption Application No. D-8374), as amended by Prohibited Transaction Exemption 97-34 (Exemption Application Nos. D-10245 and D-10246), as amended by Prohibited Transaction Exemption 2000-58 (Exemption Application No. D-10829) and as amended by Prohibited Transaction Exemption 2002-41 (Exemption Application No. D-11077) (or any successor thereto), or any substantially similar administrative exemption granted by the U.S. Department of Labor.

“ Uninsured Cause ”: Any cause of damage to a Mortgaged Property such that the complete restoration of such property is not fully reimbursable by the hazard insurance policies required to be maintained on such Mortgaged Property.

“ United States Per

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