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POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

POOLING AND SERVICING AGREEMENT
 | Document Parties: CSMC MORTGAGE BACKED TRUST SERIES 2007-1 | SELECT PORTFOLIO SERVICING, INC., | GREENPOINT MORTGAGE FUNDING, INC. You are currently viewing:
This Pooling and Servicing Agreement involves

CSMC MORTGAGE BACKED TRUST SERIES 2007-1 | SELECT PORTFOLIO SERVICING, INC., | GREENPOINT MORTGAGE FUNDING, INC.

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Title: POOLING AND SERVICING AGREEMENT
Governing Law: Delaware     Date: 2/15/2007

POOLING AND SERVICING AGREEMENT
, Parties: csmc mortgage backed trust series 2007-1 , select portfolio servicing  inc.  , greenpoint mortgage funding  inc.
50 of the Top 250 law firms use our Products every day

 

MN DRAFT 2/15/07

 

 

 

CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.,

Depositor,

 

DLJ MORTGAGE CAPITAL, INC.,

Seller,

 

WELLS FARGO BANK N.A.,

Servicer, Master Servicer and Trust Administrator,

 

BANCO POPULAR DE PUERTO RICO,

Servicer,

 

GREENPOINT MORTGAGE FUNDING, INC.

Servicer and a Seller,

 

SELECT PORTFOLIO SERVICING, INC.,

Servicer, Special Servicer and Modification Oversight Agent

 

and

 

U.S. BANK NATIONAL ASSOCIATION,

Trustee


POOLING AND SERVICING AGREEMENT

Dated as of January 1, 2007

relating to

CSMC MORTGAGE-BACKED PASS-THROUGH CERTIFICATES, SERIES 2007-1

 

 


TABLE OF CONTENTS

 

ARTICLE I DEFINITIONS

22

ARTICLE II CONVEYANCE OF MORTGAGE LOANS; REPRESENTATIONS AND

WARRANTIES

81

 

SECTION 2.01

Conveyance of Trust Fund.

81

SECTION 2.02

Acceptance by the Trustee.

86

SECTION 2.03

Representations and Warranties of the Sellers, Master Servicer, the

Modification Oversight Agent and Servicers.

88

SECTION 2.04

Representations and Warranties of the Depositor as to the Mortgage

Loans.

90

SECTION 2.05

Delivery of Opinion of Counsel in Connection with Substitutions.

91

SECTION 2.06

Issuance of Certificates.

91

SECTION 2.07

REMIC Provisions.

91

SECTION 2.08

Covenants of the Master Servicer and each Servicer.

97

ARTICLE III ADMINISTRATION AND SERVICING OF MORTGAGE LOANS

99

SECTION 3.01

Master Servicing and Servicing of Mortgage Loans.

99

SECTION 3.02

Subservicing; Enforcement of the Obligations of Sub-Servicers.

101

SECTION 3.03

Master Servicing by Master Servicer of SPS Serviced Mortgage Loans,

GreenPoint Serviced Mortgage Loans, Banco Popular Serviced Mortgage

Loans and Wells Fargo Serviced Mortgage Loans

103

SECTION 3.04

Trustee to Act as Master Servicer or Servicer.

104

SECTION 3.05

Collection of Mortgage Loans; Collection Accounts; Certificate Account.

104

SECTION 3.06

Establishment of and Deposits to Escrow Accounts; Permitted

Withdrawals from Escrow Accounts; Payments of Taxes, Insurance and

Other Charges.

109

SECTION 3.07

Access to Certain Documentation and Information Regarding the Non-

Designated Mortgage Loans; Inspections.

110

SECTION 3.08

Permitted Withdrawals from the Collection Accounts and Certificate

Account.

111

SECTION 3.09

Maintenance of Hazard Insurance; Mortgage Impairment Insurance and

Mortgage Guaranty Insurance Policy; Claims; Restoration of Mortgaged

Property.

113

SECTION 3.10

Enforcement of Due-on-Sale Clauses; Assumption Agreements.

117

SECTION 3.11

Realization Upon Defaulted Mortgage Loans; Repurchase of Certain

Mortgage Loans.

118

SECTION 3.12

Trustee and Trust Administrator to Cooperate; Release of Mortgage Files.

122

SECTION 3.13

Documents, Records and Funds in Possession a Servicer to be Held for the

Trust.

123

SECTION 3.14

Servicing Compensation and Master Servicing Compensation.

123

SECTION 3.15

Access to Certain Documentation.

124

SECTION 3.16

[Reserved].

125

SECTION 3.17

[Reserved].

125

SECTION 3.18

Maintenance of Fidelity Bond and Errors and Omissions Insurance.

125

SECTION 3.19

Special Serviced Mortgage Loans.

125

SECTION 3.20

Designated Mortgage Loans.

126

SECTION 3.21

Indemnification of Servicers and Master Servicer

127

SECTION 3.22

Prepayment Premiums

128

ARTICLE IV PAYMENTS AND STATEMENTS TO CERTIFICATEHOLDERS

131

SECTION 4.01

Priorities of Distribution.

131

SECTION 4.02

Allocation of Losses.

142

SECTION 4.03

Recoveries.

144

SECTION 4.04

Monthly Statements to Certificateholders.

144

SECTION 4.05

Servicers and Master Servicer to Cooperate.

146

SECTION 4.06

Cross-Collateralization; Adjustment to Available Funds

146

SECTION 4.07

Deposit of Uncertificated REMIC Interests.

148

SECTION 4.08

Liquidation Reserve Fund

148

SECTION 4.09

Yield Maintenance Agreement

149

SECTION 4.10

Basis Risk Reserve Fund.

150

SECTION 4.11

The Interest Rate Cap Agreements.

151

ARTICLE V ADVANCES BY THE MASTER SERVICER AND SERVICERS

154

SECTION 5.01

Advances by the Master Servicer and Servicers.

154

ARTICLE VI THE CERTIFICATES

156

SECTION 6.01

The Certificates.

156

SECTION 6.02

Registration of Transfer and Exchange of Certificates.

157

SECTION 6.03

Mutilated, Destroyed, Lost or Stolen Certificates.

164

SECTION 6.04

Persons Deemed Owners.

165

SECTION 6.05

Access to List of Certificateholders’ Names and Addresses.

165

SECTION 6.06

Maintenance of Office or Agency.

165

SECTION 6.07

Book-Entry Certificates.

166

SECTION 6.08

Notices to Clearing Agency.

166

SECTION 6.09

Definitive Certificates.

167

 

ARTICLE VII THE DEPOSITOR, THE SELLER, THE MASTER SERVICER, THE

MODIFICATION OVERSIGHT AGENT, THE SERVICERS AND THE

SPECIAL SERVICER

168

 

SECTION 7.01

Liabilities of the Seller, the Depositor, the Master Servicer, the Servicers,

the Modification Oversight Agent and the Special Servicer.

168

SECTION 7.02

Merger or Consolidation of the Seller, the Depositor, the Master Servicer,

the Modification Oversight Agent, the Servicers or the Special Servicer.

168

SECTION 7.03

Limitation on Liability of the Seller, the Depositor, the Master Servicer,

the Modification Oversight Agent, the Servicers, the Special Servicer and

Others.

169

SECTION 7.04

Master Servicer, the Modification Oversight Agent, and Servicer Not to

Resign; Transfer of Servicing.

170

SECTION 7.05

Master Servicer, Seller, Special Servicer and Servicers May Own

Certificates.

171

ARTICLE VIII DEFAULT

172

SECTION 8.01

Events of Default.

172

SECTION 8.02

Master Servicer or Trust Administrator to Act; Appointment of Successor.

175

SECTION 8.03

Notification to Certificateholders.

177

SECTION 8.04

Waiver of Events of Default.

177

ARTICLE IX CONCERNING THE TRUSTEE

178

SECTION 9.01

Duties of Trustee.

178

SECTION 9.02

Certain Matters Affecting the Trustee.

180

SECTION 9.03

Trustee Not Liable for Certificates or Mortgage Loans.

181

SECTION 9.04

Trustee May Own Certificates.

181

SECTION 9.05

Trustee’s Fees and Expenses.

182

SECTION 9.06

Eligibility Requirements for Trustee.

182

SECTION 9.07

Resignation and Removal of Trustee.

183

SECTION 9.08

Successor Trustee.

183

SECTION 9.09

Merger or Consolidation of Trustee.

184

SECTION 9.10

Appointment of Co-Trustee or Separate Trustee.

184

SECTION 9.11

Office of the Trustee.

185

ARTICLE X CONCERNING THE TRUST ADMINISTRATOR

186

SECTION 10.01

Duties of Trust Administrator.

186

SECTION 10.02

Certain Matters Affecting the Trust Administrator.

188

SECTION 10.03

Trust Administrator Not Liable for Certificates or Mortgage Loans.

189

SECTION 10.04

Trust Administrator May Own Certificates.

190

SECTION 10.05

Trust Administrator’s Fees and Expenses.

190

SECTION 10.06

Eligibility Requirements for Trust Administrator.

191

SECTION 10.07

Resignation and Removal of Trust Administrator.

191

SECTION 10.08

Successor Trust Administrator.

192

SECTION 10.09

Merger or Consolidation of Trust Administrator.

193

SECTION 10.10

Appointment of Co-Trust Administrator or Separate Trust Administrator.

193

SECTION 10.11

Office of the Trust Administrator.

194

SECTION 10.12

Tax Return.

195

SECTION 10.13

[Reserved].

195

SECTION 10.14

Determination of Certificate Index.

195

ARTICLE XI TERMINATION

196

SECTION 11.01

Termination upon Liquidation or Purchase of all Mortgage Loans.

196

SECTION 11.02

Determination of the Terminating Entity

198

SECTION 11.03

Procedure Upon Optional Termination or Auction Sale.

199

SECTION 11.04

Additional Termination Requirements.

200

ARTICLE XII MISCELLANEOUS PROVISIONS

202

SECTION 12.01

Amendment.

202

SECTION 12.02

Recordation of Agreement; Counterparts.

204

SECTION 12.03

Governing Law.

205

SECTION 12.04

Intention of Parties.

205

SECTION 12.05

Notices.

206

SECTION 12.06

Severability of Provisions.

207

SECTION 12.07

Limitation on Rights of Certificateholders.

207

SECTION 12.08

Certificates Nonassessable and Fully Paid.

208

SECTION 12.09

Protection of Assets.

208

SECTION 12.10

Non-Solicitation.

208

SECTION 12.11

Rights of the Yield Maintenance Agreement Counterparty.

209

ARTICLE XIII EXCHANGE ACT REPORTING

210

SECTION 13.01

Commission Reporting.

210

SECTION 13.02

Form 10-D Reporting

210

SECTION 13.03

Form 10-K Reporting

211

SECTION 13.04

Form 8-K Reporting

213

SECTION 13.05

Delisting; Amendment; Late Filing of Reports

214

SECTION 13.06

Annual Statements of Compliance

214

SECTION 13.07

Annual Assessments of Compliance

215

SECTION 13.08

Accountant’s Attestation

217

SECTION 13.09

Sarbanes-Oxley Certification

218

SECTION 13.10

Indemnification

218

 


EXHIBITS

 

Exhibit A:

Form of Class A Certificate

A-1

Exhibit B:

Form of Class 1-B and Class C-B Certificates

B-1

Exhibit C:

Form of Class AR, Class AR-L and Class 1-RR Certificate

C-1

Exhibit D:

Form of Class A-X, Class C-X and Class 1-X Certificates

D-1

Exhibit E:

Form of Class C-P Certificate

E-1

Exhibit F:

Form of Class PP Certificate

F-1

Exhibit G:

Form of Class M Certificates

G-1

Exhibit H:

Form of Reverse of Certificates

H-1

Exhibit I:

Form of Servicer Information

I-1

Exhibit I-A:  

Base Liquidation Report

I-16

Exhibit J:

Form of Initial Certification of Trustee

J-1

Exhibit K:

Form of Final Certification of Trustee

K-1

Exhibit L:

Form of Request for Release

L-1

Exhibit M:

Form of Transferor Certificate

M-1

Exhibit N-1:

Form of Investment Letter

N-1-1

Exhibit N-2:

Form of Rule 144A Letter

N-2-1

Exhibit N-3:

Form of Regulation S Letter

N-3-1

Exhibit O:

Form of Investor Transfer Affidavit and Agreement

O-1

Exhibit P:

Form of Transfer Certificate

P-1

Exhibit Q:

Relevant Servicing Criteria

Q-1

Exhibit R:

Additional Form 10-D Disclosure

R-1

Exhibit S:

Form of Monthly Statement to Certificateholders

S-1

Exhibit T:

Form 8-K Disclosure Information

T-1

Exhibit U:

Form of Annual Certification

U-1

Exhibit V:

Additional Disclosure Notification

V-1

Exhibit W:

Additional Form 10-K Disclosure

W-1

Exhibit X:

Form of Yield Maintenance Agreement

X-1

Exhibit Y:

Form of Certification Regarding Substitution of Defective Mortgage Loans

Y-1

 

 

SCHEDULES

 

Schedule I:

Mortgage Loan Schedule

I-1

Schedule IIA:

Representations and Warranties of DLJMC

IIA-1

Schedule IIB:

Representations and Warranties of Wells Fargo

IIB-1

Schedule IIC:

Representations and Warranties of SPS

IIC-1

Schedule IID:

Representations and Warranties of Wells Fargo

IID-1

Schedule IIE:

Representations and Warranties of Banco Popular De Puerto Rico

IIE-1

Schedule IIF:

Representations and Warranties of GreenPoint

IIF-1

Schedule IIIA:

Representations and Warranties of DLJMC as to the DLJMC Mortgage Loans

IIIA-1

Schedule IIIB:

Representations and Warranties of GreenPoint as to the GreenPoint Mortgage

Loans

IIIB-1

Schedule IV:

Yield Maintenance Notional Amounts for Class 5-A-1 Certificates

IV-1

 

 

 

 

THIS POOLING AND SERVICING AGREEMENT, dated as of January 1, 2007, is hereby executed by and among CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES  CORP., a Delaware corporation, as depositor (the “Depositor”), DLJ MORTGAGE CAPITAL, INC. (“DLJMC”), a Delaware corporation, as seller (“Seller”), WELLS FARGO BANK, N.A. (“Wells Fargo”), a national banking association, in its capacity as a servicer (a “Servicer”), as master servicer (the “Master Servicer”) and as trust administrator (the “Trust Administrator”), BANCO POPULAR DE PUERTO RICO (“Banco Popular”), a state chartered bank, as a servicer (a “Servicer”), GREENPOINT MORTGAGE FUNDING, INC., a New York corporation (“GreenPoint”), as a seller (in such capacity, a “Seller”), and as a servicer (in such capacity, a “Servicer”), SELECT PORTFOLIO SERVICING, INC. (“SPS”), a Utah corporation, as a servicer ( in such capacity, a “Servicer”) as a special servicer (in such capacity , the “Special Servicer”) and as modification oversight agent (in such capacity, the “Modification Oversight Agent”) and U.S. BANK NATIONAL ASSOCIATION, a national banking association, as trustee (the “Trustee”).  Capitalized terms used in this Agreement and not otherwise defined will have the meanings assigned to them in Article I below.

PRELIMINARY STATEMENT

 

As provided herein, the Trust Administrator shall elect that the Trust Fund (exclusive of the Interest Rate Cap Accounts, the Interest Rate Cap Agreements, the Basis Risk Reserve Fund, the Supplemental Interest Trust, the Yield Maintenance Account, the Yield Maintenance Agreement and the Liquidation Reserve Fund) be treated for federal income tax purposes as comprising five real estate mortgage investment conduits (each a “REMIC” or, in the alternative, “Subsidiary REMIC 1,” “Subsidiary REMIC 2,” “Middle REMIC 1,” “Middle REMIC 2,” and “Master REMIC”).  Each Class of Certificates (other than the Class 1-R, Class AR, the Class AR-L Certificates, the Exchangeable Certificates and the Exchangeable REMIC Certificates, and exclusive of (i) the right to receive amounts from the Basis Risk Reserve Fund in the case of each Group 1 Certificate (other than the Class 1-X and Class 1-P Certificates), (ii) the right to receive amounts from the related Interest Rate Cap Account in the case of the Class 1-A-1C, Class 1-A-2B, Class 1-M-4, Class 1-M-5 and Class 1-B-1 Certificates and (iii) the right to receive amounts from the Yield Maintenance Account in the case of the Class 5-A-1 Certificates) and each Class of Uncertificated REMIC Interests represents ownership of a regular interest in the Master REMIC for purposes of the REMIC Provisions.  The Class AR Certificates represent ownership of the sole class of residual interest in each of Middle REMIC 1, Middle REMIC 2, and the Master REMIC for purposes of the REMIC Provisions.  The Class I-R Certificates represent ownership of the sole class of residual interest in Subsidiary REMIC 1 for purposes of the REMIC Provisions.  The Class AR-L Certificates represent ownership of the sole class of residual interest in Subsidiary REMIC 2 for purposes of the REMIC Provisions.  

The Master REMIC shall hold as its assets, the Class PP Reserve Fund and the several classes of uncertificated Middle Tier Interests in Middle REMIC 2 other than the Class MT2-R Interest, and each such Middle Tier Interest is hereby designated as a regular interest in Middle REMIC 2.  Middle REMIC 2 shall hold as its assets the several classes of uncertificated Middle Tier Interests in Middle REMIC 1 other than the Class MT1-R Interest, and each such Middle Tier Interest is hereby designated as a regular interest in Middle REMIC 1.  Middle REMIC 1 shall hold as its assets the several classes of uncertificated Lower Tier Interests in Subsidiary REMIC 1 and Subsidiary REMIC 2, other than the Class LT1-R and LT2-R Interests, and each such Lower Tier Interest is hereby designated as a regular interest in the applicable Subsidiary REMIC.  Subsidiary REMIC 1 shall hold as its assets the Mortgage Loans in Loan Group 1, and all collections and accounts related thereto.  Subsidiary REMIC 2 shall hold as its assets the Mortgage Loans in Loan Groups 2, 3, 4 and 5, and all collections and accounts related thereto.  

The startup day for each REMIC created hereby for purposes of the REMIC Provisions is the Closing Date.  In addition, for purposes of the REMIC Provisions, the latest possible maturity date for each regular interest in each REMIC created hereby is 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.

Subsidiary REMIC 1

The following table sets forth (or describes) the class designation, interest rate, and initial principal amount for each uncertificated REMIC interest in Subsidiary REMIC 1:

 

 

 

 

Subsidiary REMIC 1 Interest

Initial Principal Balance

Interest Rate

Corresponding Class of Master REMIC Certificates

LT1-1-A-1A

(1)

(3)

1-A-1A

LT1-1-A-1B

(1)

(3)

1-A-1B

LT1-1-A-1C

(1)

(3)

1-A-1C

LT1-1-A-1D

(1)

(3)

1-A-1D

LTI-1-A-2A

(1)

(3)

1-A-2A

LTI-1-A-2B

(1)

(3)

1-A-2B

LTI-1-A-2C

(1)

(3)

1-A-2C

LT1-1-A-3

(1)

(3)

1-A-3

LT1-1-A-4

(1)

(3)

1-A-4

LT1-1-A-5A

(1)

(3)

1-A-5A

LT1-1-A-5B

(1)

(3)

1-A-5B

LT1-1-A-6A

(1)

(3)

1-A-6A

LT1-1-A-6B

(1)

(3)

1-A-6B

LT1-1-M-1

(1)

(3)

1-M-1

LT1-1-M-2

(1)

(3)

1-M-2

LT1-1-M-3

(1)

(3)

1-M-3

LT1-1-M-4

(1)

(3)

1-M-4

LT1-1-M-5

(1)

(3)

1-M-5

LT1-1-B-1

(1)

(3)

1-B-1

LT1-Q

(2)

(3)

N/A

LT1-R

(4)

(4)

N/A

________________

(1)

This interest has an initial principal balance equal to one-half of the initial Class Principal Balance of its Corresponding Class of Master REMIC Certificates.

(2)

This interest has an initial principal balance equal to the excess of (i) the aggregate of the Stated Principal Balances, as of the Cut-Off Date, of the Group 1 Mortgage Loans less (ii) the sum of the initial principal balances of each other interest in Subsidiary REMIC 1.  

(3)

This interest shall bear interest at a per annum rate equal to the weighted average of the Net Mortgage Rates of the Group 1 Mortgage Loans.

(4)

The Class LT1-R Interest is the sole class of residual interest in Subsidiary REMIC 1.  It does not have an interest rate or a principal balance.  The Class 1-R Certificate represents beneficial ownership interest of the Class LT1-R Interest.

On each Distribution Date, the Trust Administrator shall allocate interest (in an amount equal to the aggregate amount of interest distributable on such Distribution Date with respect to the Mortgage Loans in Loan Group 1) to the Interests in Subsidiary REMIC 1 at the rates shown above, pro rata, based on the amount of interest accrued on each such Interest for the related Interest Accrual Period, provided, however, that interest that accrues on the Class LT1-Q Interest shall be deferred in an amount equal to one-half of the increase, if any, in the Overcollateralization Amount for such Distribution Date.  Any interest so deferred shall itself bear interest at the interest rate for the Class LT1-Q Interest.  An amount equal to the interest so deferred shall be distributed as additional principal on the other Subsidiary REMIC 1 Interests having a principal balance in the manner described below.

On each Distribution Date, principal collections and realized losses with respect to the Mortgage Loans in Loan Group 1 shall be allocated in the following order of priority:

(i)

  First, concurrently, to each Subsidiary REMIC 1 Interest with a Corresponding Class of Certificates until the principal balance of each such Subsidiary REMIC 1 Interest equals one-half of the Class Principal Amount of its Corresponding Class of Certificates immediately after such Distribution Date; and

(ii)  Second, to the Class LT1-Q Interests, any remaining amounts.

On each Distribution Date, Prepayment Premiums collected in the preceding Prepayment Period in respect of the Mortgage Loans in Loan Group 1 shall be distributed to the Class LT1-Q Interest.

Subsidiary REMIC 2

The following table sets forth (or describes) the class designation, interest rate, and initial principal amount for each uncertificated REMIC interest in Subsidiary REMIC 2:

 

 

 

 

Subsidiary REMIC 2 Interest

Initial Principal Balance

Interest Rate

Corresponding Class of Master REMIC Certificates

LT2-Grp 2

(1)

5.500%

N/A

LT2-Grp 3

(2)

6.000%

N/A

LT2-Grp 4

(3)

6.500%

N/A

LT2-4-X

(4)

(4)

C-X

LT2-Grp 5

(5)

6.000%

N/A

LT2-5-X

(6)

(6)

A-X

LT2-R

(7)

(7)

N/A

________________

(1)

This interest has an initial principal balance equal to the sum of the aggregate of the Stated Principal Balances, as of the Cut-Off Date, of each Group 2 Mortgage Loan.

(2)

This interest has an initial principal balance equal to the sum of the aggregate of the Stated Principal Balances, as of the Cut-Off Date, of each Group 3 Mortgage Loan.

(3)

This interest has an initial principal balance equal to the sum of the aggregate of the Stated Principal Balances, as of the Cut-Off Date, of each Group 4 Mortgage Loan.

(4)

This interest shall be entitled to receive on each Distribution Date the amount of interest that accrues on each Group 4 Mortgage Loan that is a Premium Rate Mortgage Loan at a rate equal to the Net Mortgage Rate of such Mortgage Loan less the Required Coupon for Loan Group 4.  

(5)

This interest has an initial principal balance equal to the sum of the aggregate of the Stated Principal Balances, as of the Cut-Off Date, of each Group 5 Mortgage Loan.

(6)

This interest shall be entitled to receive on each Distribution Date the amount of interest that accrues on each Group 5 Mortgage Loan that is a Premium Rate Mortgage Loan at a rate equal to the Net Mortgage Rate of such Mortgage Loan less the Required Coupon for Loan Group 5.  

(7)

The Class LT2-R Interest is the sole class of residual interest in Subsidiary REMIC 2.  It does not have an interest rate or a principal balance.  The Class AR-L Certificate represents beneficial ownership interest of the Class LT2-R Interest.

On each Distribution Date, the Trust Administrator shall allocate interest (in an amount equal to the aggregate amount of interest distributable on such Distribution Date with respect to the Mortgage Loans in Loan Groups 2, 3, 4 and 5) to the Interests in Subsidiary REMIC 2 at the rates shown above, pro rata, based on the amount of interest accrued on each such Interest for the related Interest Accrual Period.

On each Distribution Date, principal collections and realized losses with respect to the Mortgage Loans in Loan Groups 2, 3, 4 and 5 shall be allocated to a Subsidiary REMIC 2 Interest in accordance with the respective amounts of principal collections and realized losses with respect to such Mortgage Loans allocated to any Corresponding Class of Master REMIC Certificates for such Subsidiary REMIC 2 Interest.  Any remaining amounts of principal collections and realized losses and any Assigned Prepayment Premiums payable to the Class PP Certificates with respect to the Mortgage Loans in Loan Groups 2, 3, 4 and 5 shall be allocated to the Class LT2-Grp 2, Class LT2-Grp 3, Class LT2-Grp 4 and Class LT2-Grp 5 Interests, respectively.

Middle REMIC 1

The following table sets forth (or describes) the class designation, interest rate, and initial principal amount for each class of Middle REMIC 1 Interests.

 

 

 

 

Middle REMIC 1 Interest

Initial Principal Balance

Interest Rate

Corresponding Class of Master REMIC Certificates

MT1-1-A-1A

(1)

(3)

1-A-1A

MT1-1-A-1B

(1)

(3)

1-A-1B

MT1-1-A-1C

(1)

(3)

1-A-1C

MT1-1-A-1D

(1)

(3)

1-A-1D

MT1-1-A-2A

(1)

(3)

1-A-2A

MT1-1-A-2B

(1)

(3)

1-A-2B

MT1-1-A-2C

(1)

(3)

1-A-2C

MT1-1-A-3

(1)

(3)

1-A-3

MT1-1-A-4

(1)

(3)

1-A-4

MT1-1-A-5A

(1)

(3)

1-A-5A

MT1-1-A-5B

(1)

(3)

1-A-5B

MT1-1-A-6A

(1)

(3)

1-A-6A

MT1-1-A-6B

(1)

(3)

1-A-6B

MT1-1-M-1

(1)

(3)

1-M-1

MT1-1-M-2

(1)

(3)

1-M-2

MT1-1-M-3

(1)

(3)

1-M-3

MT1-1-M-4

(1)

(3)

1-M-4

MT1-1-M-5

(1)

(3)

1-M-5

MT1-1-B-1

(1)

(3)

1-B-1

MT1-1-X

(2)

(2)

1-X

MT1-4-X

(4)

(4)

C-X

MT1-5-X

(5)

(5)

A-X

MT1-Grp-2,3,4&5

(6)(10)

(7)

N/A

MT1-GSA-C-B-1

(8)

(7)

N/A

MT1-GSA-C-B-2

(8)

(7)

N/A

MT1-R

(9)

(9)

N/A

________________

(1)

This interest has an initial principal balance equal to the initial class principal balance of its Corresponding Class of Master REMIC Certificates.

(2)

This interest shall have an initial principal balance of $3,914,692.82.  This interest shall also comprise a notional component, which represents a regular interest in Middle REMIC 1.  The notional component has a notional balance that will at all times equal the aggregate of the class principal balances of the Subsidiary REMIC Interests in Subsidiary REMIC 1, and, for each Distribution Date (and the related Accrual Period) this notional component shall bear interest at a per annum rate equal to the excess, if any, of (i) the weighted average of the interest rates on the Subsidiary REMIC Interests in Subsidiary REMIC 1, over (ii) the Adjusted Subsidiary REMIC 1 WAC.  

(3)

This interest shall be entitled to receive on each Distribution Date interest at a per annum rate equal to the interest rate on its Corresponding Class of Master REMIC Certificates.

(4)

This interest shall be entitled to receive on each Distribution Date the amount of interest that accrues on the Class LT2-4-X interest.

(5)

This interest shall be entitled to receive on each Distribution Date the amount of interest that accrues on the Class LT2-5-X interest.

(6)

This interest has an initial principal balance equal to the product of 99% and the aggregate of the Stated Principal Balances of each Mortgage Loan in Loan Groups 2, 3, 4 and 5 as of the Cut-Off Date.

(7)

This interest shall bear interest at a rate equal to the weighted average rate of the Class LT2-Grp-2, LT2-Grp-3, LT2-Grp-4 and LT2-Grp-5 Interests, weighted on the outstanding principal balances of such interests.  

(8)

Each of these interests has an initial principal balance equal to the product of 0.5% and the aggregate of the Stated Principal Balances of each Mortgage Loan in Loan Groups 2, 3, 4 and 5 as of the Cut-Off Date.

(9)

The Class MT1-R Interest is the sole class of residual interest in Middle REMIC 1.  It does not have an interest rate or a principal balance.

(10)

This interest shall also be entitled to receive Assigned Prepayment Premiums payable to the Class PP Certificates in respect of Mortgage Loans in Group 2, Group 3, Group 4 or Group 5.

On each Distribution Date, the Trust Administrator shall allocate interest (in an amount equal to the aggregate amount of interest distributable on such Distribution Date with respect to the Mortgage Loans in Loan Groups 1) to the Interests in Middle REMIC 1 with a Corresponding Class of Group 1 Certificates at the rates for such Corresponding Class of Certificates, pro rata, based on the amount of interest accrued on each such Interest for the related Interest Accrual Period.

On each Distribution Date, principal collections and realized losses with respect to the Mortgage Loans in Loan Group 1 shall be allocated in the following order of priority:

(i)

  First, concurrently, to the Class MT1-1-A-1A, Class MT1-1-A-1B, Class MT1-1-A-1C, Class MT1-1-A-1D, Class MT1-1-A-2A, Class MT1-1-A-2B, Class MT1-1-A-2C, Class MT1-1-A-3, Class MT1-1-A-4, Class MT1-1-A-5A, Class MT1-1-A-5B, Class MT1-1-A-6A, Class MT1-1-A-6B, Class MT1-1-M-1, Class MT1-1-M-2, Class MT1-1-M-3, Class MT1-1-M-4, Class MT1-1-M-5 and Class MT1-1-B-1 Interests until the principal balance of each such Middle REMIC 1 Interest equals the Class Principal Balance of its Corresponding Class of Certificates immediately after such Distribution Date; and

(ii)  Second, to the Class MT1-1-X Interest, any remaining amounts.

On each Distribution Date, Prepayment Penalties distributed to the Class LT1-Q Interest in Subsidiary REMIC 1 shall be deemed to have been passed through to the Class MT1-1-X Interest in Middle REMIC 1 on such Distribution Date.

On each Distribution Date, the Trust Administrator shall allocate interest (in an amount equal to the aggregate amount of interest distributable on such Distribution Date with respect to the Mortgage Loans in Loan Groups 2, 3, 4 and 5) to the Interests in Middle REMIC 1 with a corresponding Class of Group 2, Group 3, Group 4 or Group 5 Certificates at the rates shown above, pro rata, based on the amount of interest accrued on each such Interest for the related Interest Accrual Period; provided, however, that interest that accrues on the Class MT1-Grp-2,3,4&5 Interest shall be deferred to the extent necessary to make the principal distributions described below on the Class MT1-GSA-C-B-1 and Class MT1-GSA-C-B-2 Interests.  Any interest so deferred on the Class MT1-Grp-2,3,4&5 Interest shall itself bear interest at the interest rate of such Interest.  

On each Distribution Date, principal collections and realized losses with respect to the Mortgage Loans in Loan Groups 2, 3, 4 and 5 shall be allocated as follows:

First, to each Middle REMIC Interest corresponding to Loan Groups 2, 3, 4 and 5 in accordance with the respective amounts of principal collections and realized losses with respect to such Mortgage Loans allocated to any Corresponding Class of Master REMIC Certificates for such Middle REMIC Interest; and

Second, provided a Group C-B Certificate is still outstanding, to the Class MT1-GSA-C-B-1 and Class MT1-GSA-C-B-2 Interests, the minimum amount (including deferred interest on the Class MT1-Grp-2,3,4&5 Interest to the extent necessary) to each such that, following such allocations:

(i)

the weighted average of the interest rates of such classes (determined by subjecting the Class MT1-GSA-C-B-1 Interest to a floor of 8.0638% and the Class MT1-GSA-C-B-2 Interest to a cap of 4.000%) equals the pass-through rate of the Group C-B Certificates for the following Accrual Period; and

(ii)

the aggregate of the principal balances of the Class MT1-GSA-C-B-1 and Class MT1-GSA-C-B-2 Interests is no greater than 1% of the aggregate of the principal balances of the Class LT2-Grp 2, Class LT2-Grp 3, Class LT2-Grp 4 and Class LT2-Grp 5 Interests as of such Distribution Date.

Third, if the Group C-B Certificates are no longer outstanding, to the Class MT1-GSA-C-B-1 and Class MT1-GSA-C-B-2 Interests, pro rata, based on their outstanding principal amounts until the aggregate of the principal balances of the Class MT1-GSA-C-B-1 and Class MT1-GSA-C-B-2 Interests equals 1% of the aggregate of the principal balances of the Class LT2-Grp 2, Class LT2-Grp 3, Class LT2-Grp 4 and Class LT2-Grp 5 Interests as of such Distribution Date; and

Fourth, to the Class MT1-Grp-2,3,4&5 Interest.

Middle REMIC 2

The following table sets forth (or describes) the class designation, interest rate, and initial principal amount for each class of Middle REMIC 2 Interests.

 

 

 

 

Middle
REMIC 2 Interests

Initial
Principal Balance

Interest
Rate
(per annum)

Corresponding Class of Master REMIC Certificates

MT2-C-X

(1)

(1)

C-X

MT2-A-X

(2)

(2)

A-X

MT2-1-A-1A

(3)

(4)

1-A-1A

MT2-1-A-1B

(3)

(4)

1-A-1B

MT2-1-A-1C

(3)

(4)

1-A-1C

MT2-1-A-1D

(3)

(4)

1-A-1D

MT2-1-A-2A

(3)

(4)

1-A-2A

MT2-1-A-2B

(3)

(4)

1-A-2B

MT2-1-A-2C

(3)

(4)

1-A-2C

MT2-1-A-3

(3)

(4)

1-A-3

MT2-1-A-4

(3)

(4)

1-A-4

MT2-1-A-5A

(3)

(4)

1-A-5A

MT2-1-A-5B

(3)

(4)

1-A-5B

MT2-1-A-6A

(3)

(4)

1-A-6A

MT2-1-A-6B

(3)

(4)

1-A-6B

MT2-1-M-1

(3)

(4)

1-M-1

MT2-1-M-2

(3)

(4)

1-M-2

MT2-1-M-3

(3)

(4)

1-M-3

MT2-1-M-4

(3)

(4)

1-M-4

MT2-1-M-5

(3)

(4)

1-M-5

MT2-1-B-1

(3)

(4)

1-B-1

MT2-1-X

(5)

(5)

1-X

MT2-2-A-1

(3)

5.500%

2-A-1

MT2-3-A-1

(3)

6.000%

3-A-1

MT2-3-A-2

(3)

6.000%

3-A-2

MT2-4-A-1

(3)

6.500%

4-A-1

MT2-5-A-1

(3)

6.000%

5-A-1, 5-A-2

MT2-5-A-3

(3)

6.000%

5-A-3

MT2-5-A-4

(3)

6.000%

5-A-4

MT2-5-A-5

(3)

6.000%

5-A-5

MT2-5-A-6

(3)

6.000%

5-A-6

MT2-5-A-7

(3)

6.000%

5-A-7, 5-A-9

MT2-5-A-8

(3)

6.000%

5-A-8

MT2-5-A-10

(3)

6.000%

5-A-10, 5-A-11

MT2-5-A-12

(3)

6.000%

5-A-12

MT2-5-A-16

(3)

6.000%

5-A-16

MT2-C-B-A

(6)(9)

(7)

C-B Certificates

MT2-C-B-B

(6)

(7)

C-B Certificates

MT2-R

(8)

(8)

N/A

____________________

(1)

This interest does not have a principal balance and shall be entitled to receive on each Distribution Date the aggregate amount of interest that accrues on the Class MT1-4-X Interest.  

(2)

This interest does not have a principal balance and shall be entitled to receive on each Distribution Date the aggregate amount of interest that accrues on the Class MT1-5-X Interest.  

(3)

This interest has an initial principal balance equal to the class principal balance of its Corresponding Class of Master REMIC Certificates.

(4)

This interest shall be entitled to receive on each Distribution Date interest at a per annum rate equal to the interest rate on its Corresponding Class of Master REMIC Certificates.

(5)

This interest has an initial principal balance equal to the initial class principal balance of the Class MT1-1-X Interest in Middle REMIC 1.  This interest shall be entitled to receive on each Distribution Date interest in respect of the Class MT1-1-X Interest.  

(6)

This interest has an initial principal balance equal to one half of the aggregate class principal balance of the Group C-B Certificates.

(7)

This Class shall bear interest at the same rate as the Group C-B Certificates.

(8)

The Class MT2-R Interest is the sole class of residual interest in Middle REMIC 2.  It does not have an interest rate or a principal balance.

(9)

This interest shall also be entitled to receive Assigned Prepayment Premiums payable to the Class PP Certificates in respect of Mortgage Loans in Group 2, Group 3, Group 4 or Group 5.

On each Distribution Date, the Trust Administrator shall allocate interest (in an amount equal to the aggregate amount of interest distributable on such Distribution Date with respect to the Mortgage Loans) to the Interests in Middle REMIC 2 at the rates shown above, pro rata, based on the amount of interest accrued on each such Interest for the related Interest Accrual Period.

On each Distribution Date, principal collections and realized losses with respect to the Mortgage Loans shall be allocated to each Middle REMIC 2 Interest in accordance with the respective amounts of principal collections and realized losses with respect to such Mortgage Loans allocated to any Corresponding Class of Master REMIC Certificates for such Middle REMIC Interest; provided that any allocation between the Class MT2-C-B-A and Class MT2-C-B-B Interests shall be made equally between such Interests.

On each Distribution Date, Prepayment Penalties distributed to the MT1-1-X Interest in Middle REMIC 1 shall be deemed to have been passed through to the Class MT2-1-X Interest in Middle REMIC 2 on such Distribution Date.

Master REMIC

 

 

 

 

 

Master REMIC
Class Designation

Initial Class
Principal or Class
Notional Amount

Pass-Through
Rate

Minimum
Denominations

Integral Multiples
in Excess of
Minimum Denominations

1-A-1A

$189,000,000

5.9421%(1)

$25,000

$1

1-A-1B

$48,589,000

Variable(2)

$25,000

$1

1-A-1C

$47,000,000

Variable(3)

$250,000

$1

1-A-1D

$18,000,000

5.9421%(1)

$25,000

$1

1-A-2A

$34,038,000

5.8021%(1)

$25,000

$1

1-A-2B

$20,000,000

Variable(4)

$25,000

$1

1-A-2C

$25,000,000

5.8021%(1)

$25,000

$1

1-A-3

$84,567,000

5.9889%(1)

$25,000

$1

1-A-4

$49,579,000

6.1307%(5)

$25,000

$1

1-A-5A

$36,250,000

6.2157%(6)

$25,000

$1

1-A-5B

$10,415,000

6.2157%(6)

$25,000

$1

1-A-6A

$100,756,000

5.8631%(7)

$25,000

$1

1-A-6B

$6,375,000

5.8500%(8)

$25,000

$1

2-A-1

$43,249,900

5.500%

$1,000

$1

3-A-1

$93,533,000

6.000%

$1,000

$1

3-A-2

$3,508,000

6.000%

$25,000

$1

4-A-1

$75,330,000

6.500%

$1,000

$1

5-A-1

$100,000,000

Variable(9)

$1,000

$1

5-A-2

100,000,000*

Variable(10)

$100,000

$1

5-A-3

$30,000,000

6.000%

$1,000

$1

5-A-4

$30,000,000

6.000%

$25,000

$1

5-A-5

$2,261,000

6.000%

$1,000

$1

5-A-6

$1,095,000

6.000%

$25,000

$1

5-A-7 (11)

$25,000,000

5.750%

$25,000

$1

5-A-8

$1,875,000

6.000%

$25,000

$1

5-A-9(11)

$25,000,000*

0.250%

$100,000

$1

5-A-10(11)

$88,625,000

5.750%

$1,000

$1

5-A-11(11)

$88,625,000*

0.250%

$100,000

$1

5-A-12(11)

$3,323,000

6.000%

$1,000

$1

5-A-13(12)

$25,000,000

6.000%

$25,000

$1

5-A-14(12)

$88,625,000

6.000%

$1,000

$1

5-A-15(12)

$91,948,000

6.000%

$1,000

$1

5-A-16

$5,845,000

6.000%

$25,000

$1

A-X

16,190,589*

6.000%

$100,000

$1

C-X

22,915,441*

0.500%

$100,000

$1

1-X

711,928,792*

(13)

10%

1%

1-M-1

$16,018,000

6.0321%(14)

$25,000

$1

1-M-2

$8,899,000

6.3300%(15)

$25,000

$1

1-M-3

$3,204,000

6.5000%(16)

$25,000

$1

1-M-4

$3,560,000

Variable(17)

$25,000

$1

1-M-5

$2,848,000

Variable(18)

$25,000

$1

1-B-1

$3,916,000

Variable(19)

$25,000

$1

C-B-1

$10,205,000     

Variable(20)

$25,000

$1

C-B-2

$3,662,000

Variable(20)

$25,000

$1

C-B-3

$2,093,000

Variable(20)

$25,000

$1

C-B-4

$1,308,000

Variable(20)

$25,000

$1

C-B-5

$1,308,000

Variable(20)

$25,000

$1

C-B-6

$1,048,203

Variable(20)

$25,000

$1

AR(21)

$50

5.500%

20%(22)

20%

AR-L(23)

$50

5.500%

20%(22)

20%

1-R

$100

0.000%

20%(22)

20%

PP(24)

 $523,269,203

N/A

10%

1%

1-P(25)

$200

N/A

10%

1%

* Identifies a Class Notional Amount

(1)

These certificates are subject to a limitation on its Pass-Through Rate equal to the Net Funds Cap.

(2)

The initial Pass-Through Rate on the Class 1-A-1B Certificates is 5.4000% per annum.  On each Distribution Date after the first Distribution Date, the per annum Pass-Through Rate on the Class 1-A-1B Certificates will be equal to the lesser of the Certificate Index plus 0.080% and the Net Funds Cap.

(3)

The initial Pass-Through Rate on the Class 1-A-1C Certificates is 5.3800% per annum.  On each Distribution Date after the first Distribution Date, the per annum Pass-Through Rate on the Class 1-A-1C Certificates will be equal to the lesser of the Certificate Index plus 0.060% and the Net Funds Cap.

(4)

The initial Pass-Through Rate on the Class 1-A-2B Certificates is 5.4500% per annum.  On each Distribution Date after the first Distribution Date, the per annum Pass-Through Rate on the Class 1-A-2B Certificates will be equal to the least of (i) the Certificate Index plus 0.130%, (ii) 11.00% and (iii) the Net Funds Cap.

(5)

The Class 1-A-4 Certificates are subject to a limitation on its Pass-Through Rate equal to the Net Funds Cap.  After the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum Pass-Through Rate on these certificates will equal the lesser of (i) 6.6307% and (ii) the Net Funds Cap.

(6)

These certificates are subject to a limitation on its Pass-Through Rate equal to the Net Funds Cap.  After the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum Pass-Through Rate on these certificates will equal the lesser of (i) 6.7157% and (ii) the Net Funds Cap.

(7)

The Class 1-A-6A Certificates are subject to a limitation on its Pass-Through Rate equal to the Net Funds Cap.  After the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum Pass-Through Rate on these certificates will equal the lesser of (i) 6.3631% and (ii) the Net Funds Cap.

(8)

The Class 1-A-6B Certificates are subject to a limitation on its Pass-Through Rate equal to the Net Funds Cap.  After the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum Pass-Through Rate on these certificates will equal the lesser of (i) 6.3500% and (ii) the Net Funds Cap.

(9)

The initial Pass-Through Rate on the Class 5-A-1 Certificates is 5.920% per annum.  After the first Distribution Date, the per annum Pass-Through Rate on the Class 5-A-1 Certificates will be equal to the Certificate Index plus 0.600%, but no more than 9.500% per annum and no less than 0.600% per annum; provided, however, that when one-month LIBOR as described in the Yield Maintenance Agreement, is greater than 5.400%, a portion of the interest distributed to the Class 5-A-1 Certificates will not come from payments on the Mortgage Loans but rather from the Yield Maintenance Agreement, pursuant to Section 4.09(f).  After the Yield Maintenance Agreement terminates immediately following the Distribution Date in May 2010, the maximum Pass-Through Rate will be 6.000% per annum.

(10)

The initial Pass-Through Rate on the Class 5-A-2 Certificates is 0.080% per annum.  After the first Distribution Date, the per annum Pass-Through Rate on the Class 5-A-2 Certificates will be equal to 5.400% minus the Certificate Index, but no less than 0.000% per annum and no more than 5.400% per annum.

(11)

These Class shall be issued in uncertificated form and shall constitute the Uncertificated REMIC Interests.  Each Class of Exchangeable REMIC Certificates issued under the Trust Agreement will be entitled to the same distributions of interest and principal, as applicable, as the corresponding Uncertificated REMIC Interest.

(12)

These Certificates are Exchangeable Certificates which will not be issued under this Pooling and Servicing Agreement and are not interests in the Master REMIC.  The Exchangeable Certificates are issued under the Trust Agreement.

(13)

The Class 1-X Certificates shall represent ownership of a regular interest in the Master REMIC (the “Class X Interest”).  Such regular interest shall be entitled to receive on each Distribution Date the amounts distributable on the Class MT2-1-X interest on such Distribution Date (less $200.00 payable as the Class Principal Balance of the Class 1-P Certificates).  In addition, for federal income tax purposes, the Class 1-X Certificates shall represent ownership of the Basis Risk Reserve Fund and the Interest Rate Cap Accounts.

(14)

These certificates are subject to a limitation on its Pass-Through Rate equal to the Net Funds Cap.  After the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum Pass-Through Rate on these certificates will equal the lesser of (i) 6.5321% and (ii) the Net Funds Cap.

(15)

These certificates are subject to a limitation on its Pass-Through Rate equal to the Net Funds Cap.  After the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum Pass-Through Rate on these certificates will equal the lesser of (i) 6.830% and (ii) the Net Funds Cap.

(16)

These certificates are subject to a limitation on its Pass-Through Rate equal to the Net Funds Cap.  After the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum Pass-Through Rate on these certificates will equal the lesser of (i) 7.000% and (ii) the Net Funds Cap.

(17)

The initial Pass-Through Rate on the Class 1-M-4 Certificates is 6.570% per annum.  On each Distribution Date after the first Distribution Date and on or prior to the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum Pass-Through Rate on these certificates will be equal to the least of (i) the Certificate Index plus 1.250%, (ii) 11.00% and (iii) the Net Funds Cap.  After the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum Pass-Through Rate on these certificates will equal the least of (i) the Certificate Index plus 1.750%, (ii) 11.00% and (iii) the Net Funds Cap.

(18)

The initial Pass-Through Rate on the Class 1-M-5 Certificates is 6.570% per annum.  On each Distribution Date after the first Distribution Date and on or prior to the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum pass through rate on these certificates will be equal to the least of (i) the Certificate Index plus 1.250%, (ii) 11.00% and (iii) the Net Funds Cap.  After the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum Pass-Through Rate on these certificates will equal the least of (i) the Certificate Index plus 1.750%, (ii) 11.00% and (iii) the Net Funds Cap.

(19)

The initial Pass-Through Rate on the Class 1-B-1 Certificates is 7.320% per annum.  On each Distribution Date after the first Distribution Date and on or prior to the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum Pass-Through Rate on these certificates will be equal to the least of the (i) Certificate Index plus 2.00%, (ii) 11.00% and (iii) the Net Funds Cap.  After the first possible Optional Termination Date for the Group 1 Mortgage Loans, the per annum Pass-Through Rate on these certificates will equal the least of (i) the Certificate Index plus 2.500%, (ii) 11.00% and (iii) the Net Funds Cap.

(20)

The initial Pass-Through Rate on the Class C-B-1, Class C-B-2, Class C-B-3, Class C-B-4, Class C-B-5 and Class C-B-6 Certificates is 6.0319% per annum.  On any Distribution Date, the Pass-Through Rate on these Certificates will be a per annum rate equal to the quotient expressed as a percentage of (a) the sum of (i) the product of (x) 5.50% and (y) the Group C-B Component Balance for the Group 2 Mortgage Loans immediately prior to such Distribution Date, (ii) the product of (x) 6.00% and (y) the Group C-B Component Balance for the Group 3 Mortgage Loans immediately prior to such Distribution Date, (iii) the product of (x) 6.50% and (y) the Group C-B Component Balance for the Group 4 Mortgage Loans immediately prior to such Distribution Date and (iv) the product of (x) 6.00% and (y) the Group C-B Component Balance for the Group 5 Mortgage Loans immediately prior to such Distribution Date divided by (b) the aggregate of the Group C-B Component Balances for the Group 2, Group 3, Group 4 and Group 5 Mortgage Loans immediately prior to such Distribution Date.

(21)

The Class AR Certificates shall represent beneficial ownership of the MT1-R and MT2-R interests and of the residual interest in the Master REMIC.

(22)

The Class AR, Class AR-L and Class 1-R Certificates are issued in minimum Percentage Interests of 20% and 20% increments in excess thereof, except that one Certificate of each of such Classes may be issued in an amount of $0.01.

(23)

The Class AR-L Certificates shall represent beneficial ownership of the LT2-R Interest.

(24)

The Class PP Certificates will be entitled to receive prepayment premiums from certain of the group 2, group 3, group 4 and group 5 mortgage loans.

(25)

The Class 1-P Certificates will be entitled to receive prepayment premiums from certain of the group 1 mortgage loans.

The foregoing REMIC structure is intended to cause all of the cash from the Mortgage Loans to flow through to the Master REMIC as cash flow on a REMIC regular interest, without creating any shortfall—actual or potential (other than for credit losses) to any REMIC regular interest.  To the extent that the structure is believed to diverge from such intention the Trust Administrator shall resolve ambiguities to accomplish such result and shall to the extent necessary rectify any drafting errors or seek clarification to the structure without Certificateholder approval (but with guidance of counsel) to accomplish such intention.

Set forth below are designations of Classes of Certificates to the categories used herein:

 

Book-Entry Certificates

All Classes of Certificates other than the Physical Certificates.

Class A Certificates

The Class 1-A-1A, Class 1-A-1B, Class 1-A-1C, Class 1-A-1D, Class 1-A-2A, Class 1-A-2B, Class 1-A-2C, Class 1-A-3, Class 1-A-4, Class 1-A-5A, Class 1-A-5B, Class 1-A-6A, Class 1-A-6B, Class 2-A-1, Class 3-A-1, Class 3-A-2, Class 4-A-1, Class 5-A-1, Class 5-A-2, Class 5-A-3, Class 5-A-4, Class 5-A-5, Class 5-A-6, Class 5-A-7, Class 5-A-8, Class 5-A-9, Class 5-A-10, Class 5-A-11, Class 5-A-12, Class 5-A-16, Class AR and Class AR-L Certificates.

Class X Certificates

The Class A-X and Class C-X Certificates.  

ERISA-Restricted Certificates

Residual Certificates, Private Certificates, and any Certificates that do not satisfy the applicable ratings requirement under the Underwriter’s Exemption.

ERISA-Restricted Cap Certificates

The Class 1-A-1B, Class 1-A-1C, Class 1-A-2B, Class 1-M-4, Class 1-M-5, Class 1-B-1 and Class 5-A-1 Certificates.

Exchangeable Certificates

The Class 5-A-13, Class 5-A-14 and Class 5-A-15 Certificates issued under the Trust Agreement.

Exchangeable REMIC Certificates

The Class 5-A-7, Class 5-A-9, Class 5-A-10, Class 5-A-11 and Class 5-A-12 Certificates issued under the Trust Agreement.

Floating Rate Certificates

The Class 1-A-1B, Class 1-A-1C, Class 1-A-2B, Class 5-A-1, Class 5-A-2, Class 1-M-4, Class 1-M-5 and Class 1-B-1 Certificates.

Group 1 Certificates

Group 1 Senior Certificates and Group 1 Subordinate Certificates.

Group 2 Certificates

The Class 2-A-1, Class AR and Class AR-L Certificates.

Group 3 Certificates

The Class 3-A-1 and Class 3-A-2 Certificates.

Group 4 Certificates

The Class 4-A-1 Certificates.

Group 5 Certificates

The Class 5-A-1, Class 5-A-2, Class 5-A-3, Class 5-A-4, Class 5-A-5, Class 5-A-6, Class 5-A-7, Class 5-A-8, Class 5-A-9, Class 5-A-10, Class 5-A-11, Class 5-A-12 and Class 5-A-16 Certificates.

Group C-B Certificates

The Class C-B-1, Class C-B-2, Class C-B-3, Class C-B-4, Class C-B-5 and Class C-B-6  Certificates.

Group 1 LIBOR Certificates

The Class 1-A-1B, Class 1-A-1C, Class 1-M-4, Class 1-M-5 and Class 1-B-1 Certificates.

Group 1 Mezzanine Certificates

The Class 1-M-1, Class 1-M-2, Class 1-M-3, Class 1-M-4 and Class 1-M-5 Certificates.

Group 1 Senior Certificates

The Class 1-A-1A, Class 1-A-1B, Class 1-A-1C, Class 1-A-1D, Class 1-A-2A, Class 1-A-2B, Class 1-A-2C, Class 1-A-3, Class 1-A-4, Class 1-A-5A, Class 1-A-5B, Class 1-A-6-A and Class 1-A-6-B Certificates.

Group 1 Subordinate Certificates

The Class 1-M-1, Class 1-M-2, Class 1-M-3, Class 1-M-4, Class 1-M-5, Class 1-B-1 and Class 1-X Certificates.

Interest-Only Certificates

The Class C-X and Class A-X Certificates.

Inverse Floating Rate Certificates

The Class 5-A-2 Certificates.

LIBOR Certificates

The Floating Rate Certificates and the Inverse Floating Rate Certificates.

Lockout Certificates

The Class 1-A-6A, Class 1-A-6B, Class 5-A-4, Class 5-A-6, Class 5-A-7 and Class 5-A-16 Certificates.

Offered Certificates

All Classes of Certificates other than the Private Certificates.

Physical Certificates

The Residual Certificates and the Private Certificates.

Private Certificates

The Class 1-B-1, Class PP, Class 1-P, Class 1-X, Class C-B-4, Class C-B-5 and Class C-B-6 Certificates.

Rating Agencies

S&P, Fitch and Moody’s.

Regular Certificates

All Classes of Certificates other than the Residual Certificates.

Residual Certificates

The Class AR, Class AR-L and Class 1-R Certificates.

Senior Certificates

The Group 1 Senior Certificates, Group 2, Group 3, Group 4, Group 5, Class A-X and Class C-X Certificates.

Subordinate Certificates

The Group 1 Subordinate Certificates and Group C-B Certificates.

Uncertificated REMIC Interests

The Class 5-1-13, Class 5-A-14 and Class 5-A-15 Certificates issued under this Pooling and Servicing Agreement.

 

 


All covenants and agreements made by the Depositor herein are for the benefit and security of the Certificateholders.  The Depositor is entering into this Agreement, and the Trustee is accepting the trusts created hereby and thereby, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged.  The principal balance of the Mortgage Loans as of the Cut-off Date is $1,235,197,996.39.

The parties hereto intend to effect an absolute sale and assignment of the Mortgage Loans to the Trustee for the benefit of Certificateholders under this Agreement.  However, the Depositor and the Sellers will hereunder absolutely assign and, as a precautionary matter grant a security interest, in and to its rights, if any, in the related Mortgage Loans to the Trustee on behalf of Certificateholders to ensure that the interest of the Certificateholders hereunder in the Mortgage Loans is fully protected.

W I T N E S S E T H   T H A T:

In consideration of the mutual agreements herein contained, the Depositor, the Sellers, the Master Servicer, the Servicers, the Special Servicer, the Modification Oversight Agent, the Trustee and the Trust Administrator agree as follows:

ARTICLE I

DEFINITIONS

Whenever used in this Agreement, the following words and phrases, unless the context otherwise requires, shall have the following meanings:

ABN AMRO :  ABN AMRO Mortgage Group, Inc. and its successors and assigns.

ABN AMRO Serviced Mortgage Loans :  The Mortgage Loans identified as such on the Mortgage Loan Schedule.

ABN AMRO Servicing Agreement:  That certain Reconstituted Servicing Agreement dated as of January 1, 2007 among DLJMC, ABN AMRO, the Master Servicer, the Trustee and the Trust Administrator.

Accepted Servicing Practices :  With respect to any Mortgage Loan, those mortgage servicing practices of prudent mortgage lending institutions which service mortgage loans of the same type as such Mortgage Loan in the jurisdiction where the related Mortgaged Property is located.

Accountant’s Attestation :  The attestation required from an Accountant pursuant to Section 13.08.

Accrual Period :  For any interest-bearing Class of Certificates (other than the LIBOR Certificates) and for each Class of Lower Tier Interests, and any Distribution Date, the calendar month immediately preceding that Distribution Date.   For the LIBOR Certificates, the period from and including the 25 th day of the calendar month immediately preceding that Distribution Date to and including the 24 th day of the calendar month of the Distribution Date.  For the Group 1 LIBOR Certificates, the period from and including the Distribution Date immediately preceding the related Distribution Date (or  in the case of the first Distribution Date, the Closing Date) to and including the day immediately preceding the related Distribution Date.

Additional Data Remittance Date :  With respect to any Distribution Date and the Master Servicer, SPS or Wells Fargo, no later than twelve noon, five Business Days before the related Distribution Date.

Additional Disclosure Notification : As defined in Section 13.02.

Additional Form 10-D Disclosure : As defined in Section 13.02.

Additional Form 10-K Disclosure : As defined in Section 13.03.

Additional Servicer : means each affiliate of the Depositor that Services any of the Mortgage Loans and each Person who is not an affiliate of the Depositor, who Services 10% or more of the Mortgage Loans (measured by aggregate Stated Principal Balance of the Mortgage Loans, annually at the commencement of the calendar year prior to the year in which an Item 1123 Certification is required to be delivered).  For clarification purposes, the Master Servicer and the Trust Administrator are Additional Servicers.

Adjusted Subsidiary REMIC 1 WAC :  For any Distribution Date (and the related Accrual Period) the product of (i) two and (ii) the weighted average of the interest rates for such Distribution Date of the Subsidiary REMIC 1 Interests with a Corresponding Class of Master REMIC Certificates and the Class LT1-Q Interest, weighted in proportion to their class principal balances as of the beginning of the related Accrual Period, and computed by subjecting the rate on the Class LT1-Q to a cap of 0.00% and by subjecting the rate on each remaining Subsidiary REMIC 1 Interest to a cap equal to the Pass-Through Rate for the Corresponding Class of Master REMIC Certificates; provided that , in the case of the Class 1-A-1B, Class 1-A-1C, Class 1-A-2B, Class 1-M-4, Class 1-M-5 and Class 1-B-1 Certificates, such Pass-Through Rate shall be multiplied by the quotient of (i) the actual number of days in the Accrual Period divided by (ii) 30.

Advance :  With respect to any Non-Designated Mortgage Loan, the payment required to be made by a Servicer, SPS or the Master Servicer, as applicable, with respect to any Distribution Date pursuant to Section 5.01.

With respect to any ABN AMRO Serviced Mortgage Loan, the payment required to be made by (i) ABN AMRO with respect to any Distribution Date pursuant to Section 5.03 of the ABN AMRO Servicing Agreement or (ii) the Master Servicer with respect to any Distribution Date pursuant to Section 3.20(b) of this Agreement.

With respect to any Chevy Chase Serviced Mortgage Loan, the payment required to be made by (i) Chevy Chase with respect to any Distribution Date pursuant to Section 5.03 of the Chevy Chase Servicing Agreement or (ii) the Master Servicer with respect to any Distribution Date pursuant to Section 3.20(b) of this Agreement.

With respect to any Countrywide Serviced Mortgage Loan, the payment required to be made by (i) Countrywide with respect to any Distribution Date pursuant to Section 11.19 of the Countrywide Servicing Agreement or (ii) the Master Servicer with respect to any Distribution Date pursuant to Section 3.20(b) of this Agreement.

With respect to any Fifth Third Serviced Mortgage Loan, the payment required to be made by (i) Fifth Third with respect to any Distribution Date pursuant to Section 5.03 of the Fifth Third Servicing Agreement or (ii) the Master Servicer with respect to any Distribution Date pursuant to Section 3.20(b) of this Agreement.

With respect to any IndyMac Serviced Mortgage Loan, the payment required to be made by (i) IndyMac with respect to any Distribution Date pursuant to Section 5.03 of the IndyMac Servicing Agreement or (ii) the Master Servicer with respect to any Distribution Date pursuant to Section 3.20(b) of this Agreement.

With respect to any National City Serviced Mortgage Loan, the payment required to be made by (i) National City with respect to any Distribution Date pursuant to Section 5.03 of the National City Servicing Agreement or (ii) the Master Servicer with respect to any Distribution Date pursuant to Section 3.20(b) of this Agreement.

With respect to any PHH Serviced Mortgage Loan, the payment required to be made by (i) PHH with respect to any Distribution Date pursuant to Section 5.03 of the PHH Servicing Agreement or (ii) the Master Servicer with respect to any Distribution Date pursuant to Section 3.20(b) of this Agreement.

With respect to any SunTrust Serviced Mortgage Loan, the payment required to be made by (i) SunTrust with respect to any Distribution Date pursuant to Section 5.03 of the SunTrust Servicing Agreement or (ii) the Master Servicer with respect to any Distribution Date pursuant to Section 3.20(b) of this Agreement.

Adverse REMIC Event :  As defined in Section 2.07(f).

Agreement :  This Pooling and Servicing Agreement and all amendments or supplements hereto.

Aggregate Loan Group Balance:  As of any date of determination, the aggregate of the Stated Principal Balances of the Group 1 Mortgage Loans, except as otherwise provided herein, as of the last day of the related Collection Period.

Ancillary Income :  All income derived from the Non-Designated Mortgage Loans, other than Servicing Fees, including but not limited to, late charges, Prepayment Premiums (other than Assigned Prepayment Premiums), fees received with respect to checks or bank drafts returned by the related bank for non-sufficient funds, assumption fees, optional insurance administrative fees and all other incidental fees and charges, and only with respect to SPS, any Qualified Substitute Mortgage Loan Excess Interest with respect to any Qualified Substitute Mortgage Loan for which a payment has been received or advanced during the related Collection Period.

Applied Loss Amount :  As to any Distribution Date, an amount equal to the excess, if any of (i) the aggregate Class Principal Balance of the Group 1 Certificates, after giving effect to all Realized Losses incurred with respect to Group 1 Mortgage Loans during the Collection Period for such Distribution Date, payments of principal on such Distribution Date and any additions to the Class Principal Balance of the Offered Certificates on such Distribution Date pursuant to Section 4.03 over (ii) the Aggregate Loan Balance for such Distribution Date.

Appraised Value :  The appraised value of the Mortgaged Property based upon the appraisal made for the originator at the time of the origination of the related Mortgage Loan or the sales price of the Mortgaged Property at the time of such origination, whichever is less, or (i) with respect to any Mortgage Loan that represents a refinancing other than a Streamlined Mortgage Loan, the appraised value of the Mortgaged Property based upon the appraisal made at the time of such refinancing and (ii) with respect to any Streamlined Mortgage Loan, the appraised value of the Mortgaged Property based upon the appraisal made in connection with the origination of the mortgage loan being refinanced.

Assessment of Compliance : The certification required pursuant to Section 13.07.

Assigned Prepayment Premium :  Any Prepayment Premium on a Wells Fargo Serviced Mortgage Loan, the Wells Fargo Serviced CORE Mortgage Loans and on a SPS Serviced Mortgage Loan.

Assignment and Assumption Agreement :  That certain assignment and assumption agreement dated as of January 1, 2007, by and between DLJ Mortgage Capital, Inc., as assignor and the Depositor, as assignee, relating to the Mortgage Loans.

Assignment of Proprietary Lease :  With respect to a Cooperative Loan, the assignment or mortgage of the related Proprietary Lease from the Mortgagor to the originator of the Cooperative Loan.

Available Distribution Amount :  With respect to any Distribution Date and Loan Group (other than Loan Group 1), the sum of:  (i) all amounts in respect of Scheduled Payments (net of the related Expense Fees) due on the related Due Date and received prior to the related Determination Date on the Mortgage Loans in such Loan Group, together with any Advances in respect thereof; (ii) (a) all Insurance Proceeds (to the extent not applied to the restoration of the Mortgaged Property or to the extent attributable to Mortgage Guaranty Insurance Policy proceeds where related REO Property has been sold during the month in which such Distribution Date occurs or released to the Mortgagor in accordance with the applicable Servicer’s Accepted Servicing Standards) and all Liquidation Proceeds received during the calendar month preceding the month of that Distribution Date on the Mortgage Loans in such Loan Group, in each case net of unreimbursed Liquidation Expenses incurred with respect to such Mortgage Loans and (b) all Recoveries, if any, for such Distribution Date; (iii) all Principal Prepayments received during the related Prepayment Period on the Mortgage Loans in such Loan Group, excluding Prepayment Premiums; (iv) amounts received with respect to such Distribution Date as the Substitution Adjustment Amount or Purchase Price in respect of a Mortgage Loan in such Loan Group repurchased by the related Seller or purchased by a holder of a Subordinate Certificate pursuant to Section 3.11(f) or purchased by the Special Servicer pursuant to Section 3.11(g), in each case, as of such Distribution Date, in the case of clauses (i) through (iv) above reduced by amounts in reimbursement for Advances previously made and other amounts as to which a Servicer, the Master Servicer, the Custodians or the Trust Administrator is entitled to be reimbursed pursuant to this Agreement or the applicable Custodial Agreement, (v) any amounts payable as Compensating Interest Payments by a Servicer or the Master Servicer with respect to the Mortgage Loans in such Loan Group on such Distribution Date, (vi) the portion of the Mortgage Loan Purchase Price related to such Loan Group paid in connection with an Optional Termination up to the amount of the Par Value for such Loan  Group, (vii) the portion of the Mortgage Loan Auction Price related to such Loan Group paid in connection with an Auction Sale up to the amount of the Par Value for such Loan Group and (viii) any Liquidation Payment Amounts related to such Loan Group.

Balloon Loan :  Any Mortgage Loan that, by its terms, does not fully amortize the principal balance thereof by its stated maturity and requires a payment at the stated maturity larger than the monthly payments due thereunder.

Banco Popular :   Banco Popular De Puerto Rico, a state chartered bank, and its successors and assigns.

Banco Popular REO Disposition :  The final sale by Banco Popular, as a Servicer, of any REO Property.

Banco Popular REO Disposition Fee :  With respect to each Banco Popular REO Disposition, the lesser of (i) $1,500 or (ii) one percent (1%) of the final sales price of such Banco Popular REO Disposition shall be paid to the Banco Popular in the form of a REO management fee; provided that if the REO Property is sold or liquidated without incurring a real estate broker commission, the Banco Popular REO Disposition will be equal to the greater of (i) $1,500 or (ii) four percent (4%) of the final sales price of such Banco Popular REO Disposition.

Banco Popular Serviced Mortgage Loans :  The Mortgage Loans identified as such on the Mortgage Loan Schedule, for which Banco Popular is the applicable Servicer.

Bankruptcy Code :  The United States Bankruptcy Code, as amended from time to time (11 U.S.C. §§ 101 et seq.).

Bankruptcy Coverage Termination Date :  The point in time at which the related Bankruptcy Loss Coverage Amount is reduced to zero.

Bankruptcy Loss :  A Deficient Valuation or Debt Service Reduction.

Bankruptcy Loss Coverage Amount :  The Bankruptcy Loss Coverage Amount shall equal the Initial Bankruptcy Loss Coverage Amount as reduced by (i) the aggregate amount of Bankruptcy Losses allocated to the Group C-B Certificates since the Cut-off Date and (ii) any permissible reductions in the related Bankruptcy Loss Coverage Amount as evidenced by a letter of each Rating Agency to the Trust Administrator to the effect that any such reduction will not result in a downgrading of, or otherwise adversely affect, the then current ratings assigned to such Classes of Certificates rated by it.

Basis Risk Reserve Fund :  The separate Eligible Account created and initially maintained by the Trust Administrator pursuant to Section 4.10 in the name of the Trust Administrator for the benefit of the Certificateholders and designated “Wells Fargo Bank, N.A., as Trust Administrator in trust for registered holders of Credit Suisse First Boston Mortgage Securities Corp., Mortgage-Backed Trust Series 2007-1, Mortgage-Backed Pass-Through Certificates, Series 2007-1.”  The Basis Risk Reserve Fund shall not be part of any REMIC.  Funds in the Basis Risk Reserve Fund shall be held in trust for the Certificateholders for the uses and purposes set forth in this Agreement.

Basis Risk Shortfall :  For any Class of Group 1 Certificates (other than the Class 1-X Certificates) and any Distribution Date, the sum of (i) the excess, if any, of the related Current Interest calculated on the basis of the applicable Pass-Through Rate of such Class of Certificates without regard to the application of the Net Funds Cap over the related Current Interest for that Distribution Date; (ii) any Basis Risk Shortfall remaining unpaid from prior Distribution Dates; and (iii) interest accrued during the related Accrual Period on the amount in clause (ii) calculated at a per annum rate equal to the applicable Pass-Through Rate of such Class of Certificates without regard to the application of the Net Funds Cap.

Beneficial Holder :  A Person holding a beneficial interest in any Certificate through a Participant or an Indirect Participant or a Person holding a beneficial interest in any Definitive Certificate.

Book-Entry Certificates :  As specified in the Preliminary Statement.

Book-Entry Form :  Any Certificate held through the facilities of the Depository.

Business Day :  Any day other than (i) a Saturday or a Sunday or (ii) a day on which banking institutions in New York or the state in which the office of the Master Servicer or any Servicer or the Corporate Trust Office of the Trustee or Trust Administrator are located are authorized or obligated by law or executive order to be closed.

Cap Strike Rate :  With respect to the Class 5-A-1 Certificates, 5.40% per annum.

Capitalization Reimbursement Amount :  For any Distribution Date and each Loan Group, the aggregate of the amounts added to the Stated Principal Balances of the Mortgage Loans in such Loan Group during the preceding calendar month representing reimbursements to a Servicer on or prior to such Distribution Date in connection with the modification of such Mortgage Loan pursuant to Section 3.05.

Carryforward Interest :  For any Class of Group 1  Certificates (other than the Class 1-X Certificates) and any Distribution Date, the sum of (1) the amount, if any, by which (x) the sum of (A) Current Interest for such Class for the immediately preceding Distribution Date and (B) any unpaid Carryforward Interest from the immediately preceding Distribution Date exceeds (y) the amount paid in respect of interest on such Class on such immediately preceding Distribution Date, and (2) interest on such amount for the related Accrual Period at the applicable Pass-Through Rate for such Distribution Date.

Cash Remittance Date :  With respect to any Distribution Date and (A) Banco Popular, GreenPoint or SPS, by 1:00 PM New York City time the 7th calendar day preceding such Distribution Date, or if such 7th calendar day is not a Business Day, the Business Day immediately preceding such 7th calendar day, (B) Wells Fargo, by 4:00 PM New York City time the 18th calendar day of the month in which that Distribution Date occurs, or if such day is not a Business Day, the immediately following Business Day or (C) the Master Servicer, by 1:00 PM New York City time two Business Days preceding such Distribution Date.

Certificate :  Any Certificates executed and authenticated by the Trust Administrator on behalf of the Trustee for the benefit of the Certificateholders in substantially the form or forms attached as Exhibits A through H hereto and issued pursuant to this Agreement or the Uncertificated REMIC Interests.

Certificate Account :  The separate Eligible Account created and maintained with the Trust Administrator, or any other bank or trust company acceptable to the Rating Agencies which is incorporated under the laws of the United States or any state thereof pursuant to Section 3.05, which account shall bear a designation clearly indicating that the funds deposited therein are held in trust for the benefit of the Trust Administrator, as agent for the Trustee, on behalf of the Certificateholders or any other account serving a similar function acceptable to the Rating Agencies. Funds in the Certificate Account may (i) be held uninvested without liability for interest or compensation thereon or (ii) be invested at the direction of the Trust Administrator in Eligible Investments and reinvestment earnings thereon (net of investment losses) shall be paid to the Trust Administrator.  Funds deposited in the Certificate Account (exclusive of the amounts permitted to be withdrawn pursuant to Section 3.08(b)) shall be held in trust for the Certificateholders.

Certificate Balance :  With respect to any Certificate (other than the Group 1 Certificates), at any date, the maximum dollar amount of principal to which the Holder thereof is then entitled hereunder, such amount being equal to the Denomination thereof

(a)

minus all distributions of principal and allocations of Realized Losses, including Excess Losses, previously made or allocated with respect thereto in accordance with Section 4.02;

(b)

minus, with respect to the Group C-B Certificates, any reduction to that Certificate pursuant to Section 4.02(b) if the excess of the aggregate Certificate Balance of the Group 2, Group 3, Group 4, Group 5 and Group C-B Certificates, exceeds the aggregate Stated Principal Balance of the Group 2, Group 3, Group 4 and Group 5 Mortgage Loans;

(c)

plus , the amount of any increase to the Certificate Balance of such Certificate pursuant to Section 4.03.

With respect to any Group 1 Certificate, other than a Class 1-X Certificate, at any date, the maximum dollar amount of principal to which the Holder thereof is then entitled hereunder, such amount being equal to the Denomination thereof minus all distributions of principal previously made with respect thereto and, in the case of any Group 1 Subordinate Certificates, reduced by any Applied Loss Amounts allocated to such Class on prior Distribution Dates pursuant to Section 4.02(a), plus the amount of any increase to the Certificate Balance of such Certificate pursuant to Section 4.03.

Certificate Group :  Any of Certificate Group 1, Certificate Group 2, Certificate Group 3, Certificate Group 4 and Certificate Group 5, as applicable.

Certificate Group 1 :  Any of the Certificates with a Class designation beginning with “1” and relating to Loan Group 1.

Certificate Group 2 :  Any of the Certificates with a Class designation beginning with “2” and relating to Loan Group 2 and the Class AR and Class AR-L Certificates.

Certificate Group 3 :  Any of the Certificates with a Class designation beginning with “3” and relating to Loan Group 3.

Certificate Group 4 :  Any of the Certificates with a Class designation beginning with “4” and relating to Loan Group 4.

Certificate Group 5 :  Any of the Certificates with a Class designation beginning with “5” and relating to Loan Group 5.

Certificate Index :  With respect to each Distribution Date and the LIBOR Certificates, the rate for one-month United States dollar deposits quoted on Telerate Page 3750 as of 11:00 A.M., London time, on the related Interest Determination Date relating to each Class of LIBOR Certificates.  If such rate does not appear on such page (or such other page as may replace that page on that service, or if such service is no longer offered, such other service for displaying LIBOR or comparable rates as may be reasonably selected by the Trust Administrator after consultation with DLJMC), the rate will be the Reference Bank Rate.  If no such quotations can be obtained and no Reference Bank Rate is available, the Certificate Index will be the Certificate Index applicable to the preceding Distribution Date.  On the Interest Determination Date immediately preceding each Distribution Date, the Trust Administrator shall determine the Certificate Index for the Accrual Period commencing on such Distribution Date and inform the Master Servicer of such rate.

Certificate Register :  The register maintained pursuant to Section 6.02(a) hereof.

Certificateholder or Holder :  The Person in whose name a Certificate is registered in the Certificate Register.

Certification Parties : As defined in Section 13.09.

Certifying Person : As defined in Section 13.09.

Chevy Chase :  Chevy Chase Bank, F.S.B. and its successors and assigns.

Chevy Chase Serviced Mortgage Loans :  The Mortgage Loans identified as such on the Mortgage Loan Schedule.

Chevy Chase Servicing Agreement:  That certain Reconstituted Servicing Agreement dated as of January 1, 2007 among DLJMC, Chevy Chase, the Master Servicer, the Trustee and the Trust Administrator.

Class :  All Certificates bearing the same Class designation as set forth in the Preliminary Statement.

Class 1-A-1C Interest Rate Cap Account:  The separate Eligible Account designated as such and created and maintained by the Trust Administrator pursuant to Section 4.11 hereof.  The Class 1-A-1C Interest Rate Cap Account shall be treated as an “outside reserve fund” under Treasury regulation Section 1.860G-2(h) and shall not be part of any REMIC.  Funds in the Class 1-A-1C Interest Rate Cap Account shall be held in trust in the Supplemental Interest Trust for the uses and purposes set forth in this Agreement.

Class 1-A-1C  Interest Rate Cap Agreement:  The interest rate cap agreement relating to the Class 1-A-1C Certificates consisting of the ISDA Master Agreement (Multicurrency Cross-Border) and a schedule dated as of the Closing Date and the related confirmation thereto, between the Supplemental Interest Trust Trustee, on behalf of the Supplemental Interest Trust and the Interest Rate Cap Agreement Counterparty, and acknowledged and agreed by the Trust Administrator, which supplements, forms a part of, is subject to, and is governed by such ISDA Master Agreement, as such agreement may be amended and supplemented in accordance with its terms.

Class 1-A-2B Interest Rate Cap Account:   The separate Eligible Account designated as such and created and maintained by the Trust Administrator pursuant to Section 4.11 hereof.  The Class 1-A-2B Interest Rate Cap Account shall be treated as an “outside reserve fund” under Treasury regulation Section 1.860G-2(h) and shall not be part of any REMIC.  Funds in the Class 1-A-2B Interest Rate Cap Account shall be held in trust in the Supplemental Interest Trust for the uses and purposes set forth in this Agreement.

Class 1-A-2B Interest Rate Cap Agreement:   The interest rate cap agreement relating to the Class 1-A-2B Certificates consisting of the ISDA Master Agreement (Multicurrency Cross-Border) and a schedule dated as of the Closing Date and the related confirmation thereto, between the Supplemental Interest Trust Trustee, on behalf of the Supplemental Interest Trust and the Interest Rate Cap Agreement Counterparty, and acknowledged and agreed by the Trust Administrator, which supplements, forms a part of, is subject to, and is governed by such ISDA Master Agreement, as such agreement may be amended and supplemented in accordance with its terms.

Class 1-A-6 Available Principal Amount :  With respect to any Distribution Date, an amount equal to (i) if such Distribution Date is prior to the Stepdown Date or occurs when a Trigger Event is in effect, the Principal Payment Amount for that Distribution Date plus any amounts allocable to the Group 1 Senior Certificates pursuant to Section 4.01(I)(d)(i)(A) and (ii) if such Distribution Date is on or after the Stepdown Date and a Trigger Event is not in effect, the lesser of (x) the Senior Principal Payment Amount for that Distribution Date and (y) the Principal Payment Amount for that Distribution Date plus any amounts allocable to the Group 1 Senior Certificates pursuant to Section 4.01(I)(d)(i)(B).

Class 1-A-6 Calculation Percentage :  With respect to any Distribution Date, a fraction expressed as a percentage, the numerator of which is the aggregate Class Principal Balance of the Class 1-A-6A and Class 1-A-6B Certificates and the denominator of which is the aggregate Class Principal Balance of the Group 1 Senior Certificates, in each case prior to giving effect to the distributions of principal on that Distribution Date.

Class 1-A-6 Lockout Distribution Amount :  With respect to any Distribution Date, an amount equal to the product of (1) the applicable Class 1-A-6 Lockout Percentage for that Distribution Date, (2) the Class 1-A-6 Calculation Percentage for that Distribution Date and (3) the Class 1-A-6 Available Principal Amount for that Distribution Date, but in no event will the Class 1-A-6 Lockout Distribution Amount exceed (a) the outstanding aggregate Class Principal Balance of the Class 1-A-6A and Class 1-A-6B Certificates or (b) the Class 1-A-6 Available Principal Amount for that Distribution Date.

Class 1-A-6 Lockout Percentage :  With respect to any Distribution Date, the applicable percentage set forth below for that Distribution Date:

 

 

Range of Distribution Dates

Class 1-A-6 Lockout Percentage

February 2007 - January 2010

0%

February 2010 - January 2012

45%

February 2012 - January 2013

80%

February 2013 - January 2014

100%

February 2014 and thereafter

300%

 

Class 1-B-1 Interest Rate Cap Account:  The separate Eligible Account designated as such and created and maintained by the Trust Administrator pursuant to Section 4.11 hereof.  The Class 1-B-1 Interest Rate Cap Account shall be treated as an “outside reserve fund” under Treasury regulation Section 1.860G-2(h) and shall not be part of any REMIC.  Funds in the Class 1-B-1 Interest Rate Cap Account shall be held in trust in the Supplemental Interest Trust for the uses and purposes set forth in this Agreement.

Class 1-B-1 Interest Rate Cap Agreement:   The interest rate cap agreement relating to the Class 1-B-1 Certificates consisting of the ISDA Master Agreement (Multicurrency Cross-Border) and a schedule dated as of the Closing Date and the related confirmation thereto, between the Supplemental Interest Trust Trustee, on behalf of the Supplemental Interest Trust and the Interest Rate Cap Agreement Counterparty, and acknowledged and agreed by the Trust Administrator, which supplements, forms a part of, is subject to, and is governed by such ISDA Master Agreement, as such agreement may be amended and supplemented in accordance with its terms.

Class 1-B-1 Principal Payment Amount :  For any Distribution Date on or after the Stepdown Date and as long as a Trigger Event has not occurred with respect to such Distribution Date, will be the amount, if any, by which (x) the sum of (i) the aggregate Class Principal Balance of the Group 1 Senior and Group 1 Mezzanine Certificates after giving effect to payments on such Distribution Date and (ii) the Class Principal Balance of the Class 1-B-1 Certificates immediately prior to such Distribution Date exceeds (y) the lesser of (A) the product of (i) 98.90% and (ii) the Aggregate Loan Group Balance for such Distribution Date and (B) the amount, if any, by which (i) the Aggregate Loan Group Balance for such Distribution Date exceeds (ii) 0.50% of the Aggregate Loan Group Balance as of the Cut-off Date.

Class 1-M-1 Principal Payment Amount :  For any Distribution Date on or after the Stepdown Date and as long as a Trigger Event has not occurred with respect to such Distribution Date, will be the amount, if any, by which (x) the sum of (i) the aggregate Class Principal Balance of the Group 1 Senior Certificates after giving effect to payments on such Distribution Date and (ii) the Class Principal Balance of the Class 1-M-1 Certificates immediately prior to such Distribution Date exceeds (y) the lesser of (A) the product of (i) 92.60% and (ii) the Aggregate Loan Group Balance for such Distribution Date and (B) the amount, if any, by which (i) the Aggregate Loan Group Balance for such Distribution Date exceeds (ii) 0.50% of the Aggregate Loan Group Balance as of the Cut-off Date.

Class 1-M-2 Principal Payment Amount:  For any Distribution Date on or after the Stepdown Date and as long as a Trigger Event has not occurred with respect to such Distribution Date, will be the amount, if any, by which (x) the sum of (i) the aggregate Class Principal Balances of the Group 1 Senior Certificates and the Class Principal Balance of the Class 1-M-1 Certificates, in each case, after giving effect to payments on such Distribution Date and (ii) the Class Principal Balance of the Class 1-M-2 Certificates immediately prior to such Distribution Date exceeds (y) the lesser of (A) the product of (i) 95.10% and (ii) the Aggregate Loan Group Balance for such Distribution Date and (B) the amount, if any, by which (i) the Aggregate Loan Group Balance for such Distribution Date exceeds (ii) 0.50% of the Aggregate Loan Group Balance as of the Cut-off Date.

Class 1-M-3 Principal Payment Amount:  For any Distribution Date on or after the Stepdown Date and as long as a Trigger Event has not occurred with respect to such Distribution Date, will be the amount, if any, by which (x) the sum of (i) the aggregate Class Principal Balances of the Group 1 Senior Certificates and the Class Principal Balance of the Class 1-M-1 Certificates and Class 1-M-2 Certificates, in each case, after giving effect to payments on such Distribution Date and (ii) the Class Principal Balance of the Class 1-M-3 Certificates immediately prior to such Distribution Date exceeds (y) the lesser of (A) the product of (i) 96.00% and (ii) the Aggregate Loan Group Balance for such Distribution Date and (B) the amount, if any, by which (i) the Aggregate Loan Group Balance for such Distribution Date exceeds (ii) 0.50% of the Aggregate Loan Group Balance as of the Cut-off Date.

Class 1-M-4 Interest Rate Cap Account:  The separate Eligible Account designated as such and created and maintained by the Trust Administrator pursuant to Section 4.11 hereof.  The Class 1-M-4 Interest Rate Cap Account shall be treated as an “outside reserve fund” under Treasury regulation Section 1.860G-2(h) and shall not be part of any REMIC.  Funds in the Class 1-M-4 Interest Rate Cap Account shall be held in trust in the Supplemental Interest Trust for the uses and purposes set forth in this Agreement.

Class 1-M-4 Interest Rate Cap Agreement:  The interest rate cap agreement relating to the Class 1-M-4 Certificates consisting of the ISDA Master Agreement (Multicurrency Cross-Border) and a schedule dated as of the Closing Date and the related confirmation thereto, between the Supplemental Interest Trust Trustee, on behalf of the Supplemental Interest Trust and the Interest Rate Cap Agreement Counterparty, and acknowledged and agreed by the Trust Administrator, which supplements, forms a part of, is subject to, and is governed by such ISDA Master Agreement, as such agreement may be amended and supplemented in accordance with its terms.

Class 1-M-4 Principal Payment Amount :  For any Distribution Date on or after the Stepdown Date and as long as a Trigger Event has not occurred with respect to such Distribution Date, will be the amount, if any, by which (x) the sum of (i) the aggregate Class Principal Balances of the Group 1 Senior Certificates and the Class Principal Balance of the Class 1-M-1 Certificates, Class 1-M-2 Certificates and Class 1-M-3 Certificates, in each case, after giving effect to payments on such Distribution Date and (ii) the Class Principal Balance of the Class 1-M-4 Certificates immediately prior to such Distribution Date exceeds (y) the lesser of (A) the product of (i) 97.00% and (ii) the Aggregate Loan Group Balance for such Distribution Date and (B) the amount, if any, by which (i) the Aggregate Loan Group Balance for such Distribution Date exceeds (ii) 0.50% of the Aggregate Loan Group Balance as of the Cut-off Date.

Class 1-M-5 Interest Rate Cap Account:  The separate Eligible Account designated as such and created and maintained by the Trust Administrator pursuant to Section 4.11 hereof.  The Class 1-M-5 Interest Rate Cap Account shall be treated as an “outside reserve fund” under Treasury regulation Section 1.860G-2(h) and shall not be part of any REMIC.  Funds in the Class 1-M-5 Interest Rate Cap Account shall be held in trust in the Supplemental Interest Trust for the uses and purposes set forth in this Agreement.

Class 1-M-5 Interest Rate Cap Agreement:   The interest rate cap agreement relating to the Class 1-M-5 Certificates consisting of the ISDA Master Agreement (Multicurrency Cross-Border) and a schedule dated as of the Closing Date and the related confirmation thereto, between the Supplemental Interest Trust Trustee, on behalf of the Supplemental Interest Trust and the Interest Rate Cap Agreement Counterparty, and acknowledged and agreed by the Trust Administrator, which supplements, forms a part of, is subject to, and is governed by such ISDA Master Agreement, as such agreement may be amended and supplemented in accordance with its terms.

Class 1-M-5 Principal Payment Amount :  For any Distribution Date on or after the Stepdown Date and as long as a Trigger Event has not occurred with respect to such Distribution Date, will be the amount, if any, by which (x) the sum of (i) the aggregate Class Principal Balances of the Group 1 Senior Certificates and the Class Principal Balance of the Class 1-M-1 Certificates, Class 1-M-2 Certificates, Class 1-M-3 Certificates and Class 1-M-4 Certificates, in each case, after giving effect to payments on such Distribution Date and (ii) the Class Principal Balance of the Class 1-M-5 Certificates immediately prior to such Distribution Date exceeds (y) the lesser of (A) the product of (i) 97.80% and (ii) the Aggregate Loan Group Balance for such Distribution Date and (B) the amount, if any, by which (i) the Aggregate Loan Group Balance for such Distribution Date exceeds (ii) 0.50% of the Aggregate Loan Group Balance as of the Cut-off Date.

Class 5-A-2 Notional Amount :  For any Distribution Date and the Class 5-A-2 Certificates, the Class Principal Balance of the Class 5-A-1 Certificates immediately prior to such Distribution Date.

Class 5-A-9 Notional Amount :  For any Distribution Date and the Class 5-A-9 Certificates, the Class Principal Balance of the Class 5-A-7 Certificates immediately prior to such Distribution Date.

Class 5-A-11 Notional Amount :  For any Distribution Date and the Class 5-A-11 Certificates, the Class Principal Balance of the Class 5-A-10 Certificates immediately prior to such Distribution Date.

Class A Certificates :  As set forth in the Preliminary Statement.

Class A-X Notional Amount :  With respect to any Distribution Date and the Class A-X Certificates, the product of (x) the aggregate Stated Principal Balance, as of the second preceding Due Date (after giving effect to Scheduled Payments for that Due Date, whether or not received), or for the initial Distribution Date, as of the Cut-off Date, of the Premium Rate Mortgage Loans with respect to Loan Group 5 (excluding any Special Payoff Mortgage Loans); and (y) a fraction, the numerator of which is the weighted average of the related Stripped Interest Rates for the Premium Rate Mortgage Loans with respect to Loan Group 5 as of such date (excluding any Special Payoff Mortgage Loans) and the denominator of which is 6.00%.

Class C-X Notional Amount : With respect to any Distribution Date and the Class C-X Certificates, the product of (x) the aggregate Stated Principal Balance, as of the second preceding Due Date (after giving effect to Scheduled Payments for that Due Date, whether or not received), or for the initial Distribution Date, as of the Cut-off Date, of the Premium Rate Mortgage Loans with respect to Loan Group 4 (excluding any Special Payoff Mortgage Loans); and (y) a fraction, the numerator of which is the weighted average of the related Stripped Interest Rates for the Premium Rate Mortgage Loans with respect to Loan Group 4 as of such date (excluding any Special Payoff Mortgage Loans) and the denominator of which is 0.50%.  

Class Interest Shortfall :  As to any Distribution Date and each Class of interest-bearing Certificates (other than Group 1 Certificates), the amount by which the amount described in clause (i) of the definition of Interest Distribution Amount for such Class, exceeds the amount of interest actually distributed on such Class on such Distribution Date.

Class Notional Amount:  Any of the Class 5-A-2, Class 5-A-9, Class 5-A-11, Class A-X and Class C-X Notional Amounts, as applicable.  

Class PP Reserve Fund :  The Eligible Account established pursuant to Section 4.01(II)(E).

Class Principal Balance :  With respect to any Class of Certificates, other than the Notional Amount Certificates, and as to any date of determination, the aggregate of the Certificate Balances of all Certificates of such Class as of such date.

Class Unpaid Interest Amounts :  As to any Distribution Date and Class of interest-bearing Certificates, other than the Group 1 Certificates, the amount by which the aggregate Class Interest Shortfalls for such Class on prior Distribution Dates exceeds the amount distributed on such Class on prior Distribution Dates pursuant to clause (ii) of the definition of Interest Distribution Amount.

Class X Certificates :  As set forth in the Preliminary Statement.

Clearing Agency :  An organization registered as a “clearing agency” pursuant to Section 17A of the Securities Exchange Act of 1934, as amended, which initially shall be DTC.

Closing Date :  January 30, 2007.

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

Collection Account :  The accounts established and maintained by each Servicer in accordance with Section 3.05.

Collection Period :  With respect to each Distribution Date, the period commencing on the second day of the month preceding the month of the Distribution Date and ending on the first day of the month of the Distribution Date.

Commission : The U.S. Securities and Exchange Commission.

Compensating Interest Payment : For any Distribution Date and SPS, with respect to the SPS Serviced Mortgage Loans, the lesser of (i) the aggregate Servicing Fee payable to SPS (for the purposes of this definition only the Servicing Fee Rate shall equal 0.25% per annum) in respect of the SPS Serviced Mortgage Loans for such Distribution Date and (ii) the aggregate Prepayment Interest Shortfall allocable to Payoffs and Curtailments with respect to SPS Serviced Mortgage Loans.

For any Distribution Date and Banco Popular, with respect to the Banco Popular Serviced Mortgage Loans, the lesser of (i) the aggregate Servicing Fee payable to Banco Popular in respect of the Banco Popular Serviced Mortgage Loans for such Distribution Date, equal to 0.25% per annum and (ii) the aggregate Prepayment Interest Shortfall allocable to Payoffs with respect to the Banco Popular Serviced Mortgage Loans.

For any Distribution Date and Wells Fargo, with respect to the Wells Fargo Serviced Mortgage Loans or Wells Fargo Serviced CORE Mortgage Loan, the lesser of (i) the aggregate Servicing Fee payable to Wells Fargo (for purposes of this definition only the Servicing Fee Rate shall equal 0.25% per annum) in respect of the Wells Fargo Serviced Mortgage Loans or Wells Fargo Serviced CORE Mortgage Loans, as applicable, for such Distribution Date and (ii) the aggregate Prepayment Interest Shortfall allocable to Payoffs and Curtailments with respect to Wells Fargo Serviced Mortgage Loans or Wells Fargo Serviced CORE Mortgage Loans, as applicable.

For any Distribution Date and GreenPoint, with respect to the GreenPoint Serviced Mortgage Loans, the lesser of (i) 50% of the aggregate Servicing Fee payable to GreenPoint in respect of the GreenPoint Serviced Mortgage Loans for such Distribution Date and (ii) the aggregate Prepayment Interest Shortfall allocable to Payoffs and Curtailments with respect to the GreenPoint Serviced Mortgage Loans.

For any Distribution Date and the Master Servicer, the Compensating Interest Payment shall be equal to:

(a)

with respect to the SPS Serviced Mortgage Loans, the excess of (i) the Compensating Interest Payment required to be remitted by SPS for such Distribution Date over (ii) the amount of the Compensating Interest Payment actually remitted by SPS for such Distribution Date;   

(b)

with respect to the Wells Fargo Serviced Mortgage Loans, the excess of (i) the Compensating Interest Payment required to be remitted by Wells Fargo for such Distribution Date over (ii) the amount of the Compensating Interest Payment actually remitted by Wells Fargo for such Distribution Date;

(c)

with respect to the Wells Fargo Serviced CORE Mortgage Loans, the excess of (i) the Compensating Interest Payment required to be remitted by Wells Fargo for such Distribution Date over (ii) the amount of the Compensating Interest Payment actually remitted by Wells Fargo for such Distribution Date;

(d)

with respect to the Banco Popular Serviced Mortgage Loans, the excess of (i) the Compensating Interest Payment required to be remitted by Banco Popular for such Distribution Date over (ii) the amount of the Compensating Interest Payment actually remitted by Banco Popular for such Distribution Date;

(e)

with respect to the ABN AMRO Serviced Mortgage Loans, the excess of (i) the Prepayment Interest Shortfall Amount (as defined in the ABN AMRO Servicing Agreement) required to be remitted by ABN AMRO on the Remittance Date (as defined in the ABN AMRO Servicing Agreement) immediately preceding such Distribution Date over (ii) the amount of the Prepayment Interest Shortfall Amount (as defined in the ABN AMRO Servicing Agreement) actually remitted by ABN AMRO for such Distribution Date;

(f)

with respect to the Chevy Chase Serviced Mortgage Loans, the excess of (i) the Prepayment Interest Shortfall Amount (as defined in the Chevy Chase Servicing Agreement) required to be remitted by Chevy Chase on the Remittance Date (as defined in the Chevy Chase Servicing Agreement) immediately preceding such Distribution Date over (ii) the amount of the Prepayment Interest Shortfall Amount (as defined in the Chevy Chase Servicing Agreement) actually remitted by Chevy Chase for such Distribution Date;

(g)

with respect to the Countrywide Serviced Mortgage Loans, the excess of (i) the Prepayment Interest Shortfall Amount (as defined in the Countrywide Servicing Agreement) required to be remitted by Countrywide on the Remittance Date (as defined in the Countrywide Servicing Agreement) immediately preceding such Distribution Date over (ii) the amount of the Prepayment Interest Shortfall Amount (as defined in the Countrywide Servicing Agreement) actually remitted by Countrywide for such Distribution Date;

(h)

with respect to the Fifth Third Serviced Mortgage Loans, the excess of (i) the Compensating Interest (as defined in the Fifth Third Servicing Agreement) required to be remitted by Fifth Third for such Remittance Date (as defined in the Fifth Third Servicing Agreement) over (ii) the amount of the Compensating Interest (as defined in the Fifth Third Servicing Agreement) actually remitted by Fifth Third for such Remittance Date (as defined in the Fifth Third Servicing Agreement);

(i)

with respect to the GreenPoint Serviced Mortgage Loans, the excess of (i) the Compensating Interest Payment required to be remitted by GreenPoint for such Distribution Date over (ii) the amount of the Compensating Interest Payment actually remitted by GreenPoint for such Distribution Date;

(j)

with respect to the IndyMac Serviced Mortgage Loans, the excess of (i) the Compensating Interest (as defined in the IndyMac Servicing Agreement) required to be remitted by IndyMac for such Remittance Date (as defined in the IndyMac Servicing Agreement) over (ii) the amount of the Compensating Interest (as defined in the IndyMac Servicing Agreement) actually remitted by IndyMac for such Remittance Date (as defined in the IndyMac Servicing Agreement);

(k)

with respect to the National City Serviced Mortgage Loans, the excess of (i) the Compensating Interest (as defined in the National City Servicing Agreement) required to be remitted by National City for such Remittance Date (as defined in the National City Servicing Agreement) over (ii) the amount of the Compensating Interest (as defined in the National City Servicing Agreement) actually remitted by National City for such Remittance Date (as defined in the National City Servicing Agreement);

(l)

with respect to the PHH Serviced Mortgage Loans, the excess of (i) the Compensating Interest (as defined in the PHH Servicing Agreement) required to be remitted by PHH for such Remittance Date (as defined in the PHH Servicing Agreement) over (ii) the amount of the Compensating Interest (as defined in the PHH Servicing Agreement) actually remitted by PHH for such Remittance Date (as defined in the PHH Servicing Agreement); and

(m)

with respect to the SunTrust Serviced Mortgage Loans, the excess of (i) the Compensating Interest (as defined in the SunTrust Servicing Agreement) required to be remitted by SunTrust for such Remittance Date (as defined in the SunTrust Servicing Agreement) over (ii) the amount of the Compensating Interest (as defined in the SunTrust Servicing Agreement) actually remitted by SunTrust for such Remittance Date (as defined in the SunTrust Servicing Agreement);

Controlling Person : With respect to any Person, any other Person who “controls” such Person within the meaning of the Securities Act.

Cooperative Corporation: With respect to any Cooperative Loan, the cooperative apartment corporation that holds legal title to the related Cooperative Property and grants occupancy rights to units therein to stockholders through Proprietary Leases or similar arrangements.

Cooperative Lien Search: A search for (a) federal tax liens, mechanics’ liens, lis pendens, judgments of record or otherwise against (i) the Cooperative Corporation and (ii) the seller of the Cooperative Unit, (b) filings of Financing Statements and (c) the deed of the Cooperative Property into the Cooperative Corporation.

Cooperative Loan: A Mortgage Loan that is secured by a first lien on and a perfected security interest in Cooperative Shares and the related Proprietary Lease granting exclusive rights to occupy the related Cooperative Unit in the building owned by the related Cooperative Corporation.

Cooperative Property: With respect to any Cooperative Loan, all real property and improvements thereto and rights therein and thereto owned by a Cooperative Corporation including without limitation the land, separate dwelling units and all common elements.

Cooperative Shares: With respect to any Cooperative Loan, the shares of stock issued by a Cooperative Corporation and allocated to a Cooperative Unit and represented by stock certificates.

Cooperative Unit : With respect to any Cooperative Loan, a specific unit in a Cooperative Property.

Corporate Trust Office :  With respect to the Trustee, the designated office of the Trustee at which at any particular time its corporate trust business with respect to this Agreement shall be administered, which office at the date of the execution of this Agreement is located at 60 Livingston Avenue, Structured Finance EP-MN-WS3D, St. Paul, Minnesota 55107-2292, Attention:  Corporate Trust—Structured Finance – CSMC 2007-1.  With respect to the Trust Administrator, the designated office of the Trust Administrator at which at any particular time its corporate trust business with respect to this Agreement shall be administered, which office at the date of the execution of this Agreement is located at 9062 Old Annapolis Road, Columbia, MD 21045, Attention:  CSMC 2007-1, except for purposes of Section 6.06 and certificate transfer purposes, such term shall mean the office or agency of the Trust Administrator located at Wells Fargo Bank, National Association, Sixth Street and Marquette Avenue, Minneapolis, Minnesota  55479, Attention: CSMC 2007-1.

Corresponding Classes of Certificates :  With respect to each Lower Tier Interest, any Class of Certificates appearing opposite such Lower Tier Interest in the Preliminary Statement.

Countrywide :  Countrywide Home Loan Servicing LP, a Texas limited partnership, and its successors and assigns.

Countrywide Serviced Mortgage Loans :  The Mortgage Loans identified as such on the Mortgage Loan Schedule.

Countrywide Servicing Agreement:  That certain Reconstituted Servicing Agreement dated as of January 1, 2007 among DLJMC, Countrywide, the Master Servicer, the Trustee and the Trust Administrator.

Credit Support Depletion Date :  The first Distribution Date on which the aggregate Class Principal Balance of the Group C-B Certificates has been or will be reduced to zero.

Current Interest :  For any Class of Group 1 Certificates (other than the Class 1-X Certificates) and any Distribution Date, the amount of interest accruing at the applicable Pass-Through Rate on the related Class Principal Balance of such Class during the related Accrual Period; provided , that if and to the extent that on any Distribution Date the Interest Remittance Amount is less than the aggregate distributions required pursuant to Section 4.01(I)(a) without regard to this proviso as a result of Interest Shortfalls, then the Current Interest on each Class will be reduced, on a pro rata basis in proportion to the amount of Current Interest for each Class without regard to this proviso, by such Interest Shortfalls for such Distribution Date.

Curtailment :  Any payment of principal on a Mortgage Loan, made by or on behalf of the related Mortgagor, other than a Scheduled Payment, a prepaid Scheduled Payment or a Payoff, which is applied to reduce the outstanding Stated Principal Balance of the Mortgage Loan.

Custodial Agreements :  Those certain custodial agreements each dated as of January 1, 2007 among the Trustee, the Trust Administrator and any of LaSalle Bank National Association, Banco Popular or Wells Fargo Bank, N.A, as applicable, pursuant to which the Custodians agree to hold any of the documents or instruments referred to in Section 2.01 of this Agreement as agent for the Trustee.

Custodians :  LaSalle Bank National Association, Banco Popular and Wells Fargo Bank, N.A., each of which shall act as agent on behalf of the Trustee, and shall be compensated by the Trust Administrator or as otherwise specified therein.  

Cut-off Date :  January 1, 2007.

Cut-off Date Pool Principal Balance :  $1,235,197,996.39.

Cut-off Date Principal Balance :  As to any Mortgage Loan, the Stated Principal Balance thereof as of the close of business on the Cut-off Date.

Data Remittance Date :  With respect to any Distribution Date and the Master Servicer, SPS, Banco Popular, GreenPoint or Wells Fargo, the 10th calendar day of the month in which such Distribution Date occurs, or if such 10th day is not a Business Day, the Business Day immediately following such 10th day.

Debt Service Reduction :  With respect to any Mortgage Loan, a reduction by a court of competent jurisdiction in a proceeding under the Bankruptcy Code in the Scheduled Payment for such Mortgage Loan which became final and non-appealable, except such a reduction resulting from a Deficient Valuation or any reduction that results in a permanent forgiveness of principal.

Debt Service Reduction Mortgage Loan :  Any Mortgage Loan that became the subject of a Debt Service Reduction.

Deferred Amount :  For any Class of Group 1 Subordinate Certificates (other than the Class 1-X Certificates) and any Distribution Date, the amount by which (x) the aggregate of the Applied Loss Amounts previously applied in reduction of the Class Principal Balance thereof exceeds (y) the sum of (i) the aggregate of amounts previously paid in reimbursement thereof and (ii) any additions to the Class Principal Balance pursuant to Section 4.03 on such Distribution Date or any previous Distribution Date.  Any payment of Deferred Amount pursuant to Section 4.01(I)(d) shall not result in a reduction to the Class Principal Balance of the Class of Certificate to which it is distributed.

Deficient Valuation :  With respect to any Mortgage Loan, a valuation by a court of competent jurisdiction of the Mortgaged Property in an amount less than the then outstanding indebtedness under the Mortgage Loan, or that results in a permanent forgiveness of principal, which valuation in either case results from a proceeding under the Bankruptcy Code.

Definitive Certificate :  As defined in Section 6.09.

Deleted Mortgage Loan:  As defined in Section 2.03(c).

Delinquency Rate :  For any month will be, generally, the fraction, expressed as a percentage, the numerator of which is the aggregate outstanding principal balance of all Group 1 Mortgage Loans 60 or more days delinquent (including all foreclosures, bankruptcies and REO Properties) as of the close of business on the last day of such month, and the denominator of which is the Aggregate Loan Group Balance as of the close of business on the last day of such month.

Denomination :  With respect to each Certificate, the amount set forth on the face thereof as the “Initial Certificate Balance of this Certificate” or the “Initial Notional Amount of this Certificate” or, if neither of the foregoing, the Percentage Interest appearing on the face thereof.

Depositor :  Credit Suisse First Boston Mortgage Securities Corp., a Delaware corporation, or its successor in interest.

Depository Agreement :  The Letter of Representation dated as of the Closing Date by and among DTC, the Depositor and the Trust Administrator for the benefit of the Trustee.

Designated Mortgage Loans :  Each of the following, as applicable:

(a)

the ABN AMRO Serviced Mortgage Loans, unless any such Mortgage Loan is no longer serviced by ABN AMRO under the ABN AMRO Servicing Agreement;

(b)

the Chevy Chase Serviced Mortgage Loans, unless any such Mortgage Loan is no longer serviced by Chevy Chase under the Chevy Chase Servicing Agreement;

(c)

the Countrywide Serviced Mortgage Loans, unless any such Mortgage Loan is no longer serviced by Countrywide under the Countrywide Servicing Agreement;

(d)

the Fifth Third Serviced Mortgage Loans, unless any such Mortgage Loan is no longer serviced by Fifth Third under the Fifth Third Servicing Agreement;

(e)

the IndyMac Serviced Mortgage Loans, unless any such Mortgage Loan is no longer serviced by IndyMac under the IndyMac Servicing Agreement;

(f)

the National City Serviced Mortgage Loans, unless any such Mortgage Loan is no longer serviced by National City under the National City Servicing Agreement;

(g)

the PHH Serviced Mortgage Loans, unless any such Mortgage Loan is no longer serviced by PHH under the PHH Servicing Agreement; and

(h)

the SunTrust Serviced Mortgage Loans, unless any such Mortgage Loan is no longer serviced by SunTrust under the SunTrust Servicing Agreement;

Designated Servicer :  Each of ABN AMRO, Chevy Chase, Countrywide, Fifth Third, IndyMac, National City, PHH and SunTrust, as applicable.

Designated Servicing Agreements :  Each of the ABN AMRO Servicing Agreement, Chevy Chase Servicing Agreement, the Countrywide Servicing Agreement, the Fifth Third Servicing Agreement, the IndyMac Servicing Agreement, the National City Servicing Agreement, the PHH Servicing Agreement and the SunTrust Servicing Agreement, as applicable.  

Determination Date :  With respect to each Distribution Date and (A) the Master Servicer or any Servicer (other than Wells Fargo), the 10th day of the calendar month in which such Distribution Date occurs or, if such 10th day is not a Business Day, the Business Day immediately succeeding such Business Day and (B) Wells Fargo, the Business Day immediately preceding the Cash Remittance Date related to such Distribution Date.

Disqualified Organization :  Any organization defined as a “disqualified organization” under Section 860E(e)(5) of the Code, which includes any of the following:  (i) the United States, any State or political subdivision thereof, any possession of the United States, or any agency or instrumentality of any of the foregoing (other than an instrumentality which is a corporation if all of its activities are subject to tax and, except for the FHLMC, a majority of its board of directors is not selected by such governmental unit), (ii) a foreign government, any international organization, or any agency or instrumentality of any of the foregoing, (iii) any organization (other than certain farmers’ cooperatives described in Section 521 of the Code) which is exempt from the tax imposed by Chapter 1 of the Code (including the tax imposed by Section 511 of the Code on unrelated business taxable income), (iv) rural electric and telephone cooperatives described in Section 1381(a)(2)(C) of the Code, (v) an “electing large partnership” within the meaning of Section 775 of the Code, and (vi) any other Person so designated by the Trust Administrator based upon an Opinion of Counsel that the holding of an Ownership Interest in a Residual Certificate by such Person may cause any REMIC formed hereby or any Person having an Ownership Interest in any Class of Certificates (other than such Person) to incur a liability for any federal tax imposed under the Code that would not otherwise be imposed but for the Transfer of an Ownership Interest in a Residual Certificate to such Person.  The terms “United States”, “State” and “international organization” shall have the meanings set forth in Section 7701 of the Code or successor provisions.

Distribution Date :  The 25 th day of any month, or if such 25 th day is not a Business Day, the Business Day immediately following such 25 th day, commencing in February 2007.

DLJMC :  DLJ Mortgage Capital, Inc., a Delaware corporation, and its successors and assigns.

DTC :  The Depository Trust Company.

Due Date : With respect to each Mortgage Loan and any Distribution Date, the date on which Scheduled Payments on such Mortgage Loan are due which is either the first day of the month of such Distribution Date, or if Scheduled Payments on such Mortgage Loan are due on a day other than the first day of the month, the date in the calendar month immediately preceding the Distribution Date on which such Scheduled Payments are due, exclusive of any days of grace.

Eligible Account :  Either (i) an account or accounts maintained with a federal or state chartered depository institution or trust company acceptable to the Rating Agencies or (ii) an account or accounts the deposits in which are insured by the FDIC to the limits established by such corporation, provided that any such deposits not so insured shall be maintained in an account at a depository institution or trust company whose commercial paper or other short term debt obligations (or, in the case of a depository institution or trust company which is the principal subsidiary of a holding company, the commercial paper or other short term debt obligations of such holding company) have been rated by each Rating Agency in its highest short-term rating category, or (iii) a segregated trust account or accounts (which shall be a “special deposit account”) maintained with the Trustee, the Trust Administrator or any other federal or state chartered depository institution or trust company, acting in its fiduciary capacity, in a manner acceptable to the Trustee, the Trust Administrator and the Rating Agencies.  Eligible Accounts may bear interest.  

Eligible Institution :  An institution having the highest short-term debt rating, and one of the two highest long-term debt ratings of the Rating Agencies or the approval of the Rating Agencies. Notwithstanding the above, Banco Popular shall be an Eligible Institution, provided and for so long as its deposits are insured by the FDIC and it is assigned a short-term debt rating of not less than A2 from a Rating Agency, and a long-term rating of not less than A- from S&P.

Eligible Investments :  Any one or more of the obligations and securities listed below:

1.

direct obligations of, and obligations fully guaranteed by, the United States of America, or any agency or instrumentality of the United States of America the obligations of which are backed by the full faith and credit of the United States of America; or obligations fully guaranteed by, the United States of America; the FHLMC, FNMA, the Federal Home Loan Banks or any agency or instrumentality of the United States of America rated AA (or the equivalent) or higher by the Rating Agencies;

2.

federal funds, demand and time deposits in, certificates of deposits of, or bankers’ acceptances issued by, any depository institution or trust company incorporated or organized under the laws of the United States of America or any state thereof and subject to supervision and examination by federal and/or state banking authorities, so long as at the time of such investment or contractual commitment providing for such investment the commercial paper or other short-term debt obligations of such depository institution or trust company (or, in the case of a depository institution or trust company which is the principal subsidiary of a holding company, the commercial paper or other short-term debt obligations of such holding company) are rated in one of two of the highest ratings by each of the Rating Agencies, and the long-term debt obligations of such depository institution or trust company (or, in the case of a depository institution or trust company which is the principal subsidiary of a holding company, the long-term debt obligations of such holding company) are rated in one of two of the highest ratings, by each of the Rating Agencies;

3.

repurchase obligations with a term not to exceed 30 days with respect to any security described in clause (i) above and entered into with a depository institution or trust company (acting as a principal) rated “A-1+” by the Rating Agencies; provided, however , that collateral transferred pursuant to such repurchase obligation must be of the type described in clause (i) above and must (A) be valued daily at current market price plus accrued interest, (B) pursuant to such valuation, be equal, at all times, to 105% of the cash transferred by the Trustee or the Trust Administrator in exchange for such collateral, and (C) be delivered to the Trustee or the Trust Administrator or, if the Trustee or the Trust Administrator, as applicable, is supplying the collateral, an agent for the Trustee or the Trust Administrator, in such a manner as to accomplish perfection of a security interest in the collateral by possession of certificated securities;

4.

securities bearing interest or sold at a discount issued by any corporation incorporated under the laws of the United States of America or any state thereof which has a long-term unsecured debt rating in the highest available rating category of each of the Rating Agencies at the time of such investment;

5.

commercial paper having an original maturity of less than 365 days and issued by an institution having a short-term unsecured debt rating in the highest available rating category of each of the Rating Agencies at the time of such investment;

6.

a guaranteed investment contract approved by each of the Rating Agencies and issued by an insurance company or other corporation having a long-term unsecured debt rating in the highest available rating category of each of the Rating Agencies at the time of such investment;

7.

money market funds (which may be 12b-1 funds as contemplated under the rules promulgated by the Securities and Exchange Commission under the Investment Company Act of 1940) having ratings in the highest available rating category of Moody’s and one of the two highest available rating categories of S&P at the time of such investment (any such money market funds which provide for demand withdrawals being conclusively deemed to satisfy any maturity requirements for Eligible Investments set forth herein) including money market funds of the Master Servicer, a Servicer, the Trustee or the Trust Administrator and any such funds that are managed by the Master Servicer, a Servicer, the Trustee or the Trust Administrator or their respective Affiliates or for the Master Servicer, a Servicer, the Trustee or the Trust Administrator or any Affiliate of such Person acts as advisor, as long as such money market funds satisfy the criteria of this subparagraph (vii); and

8.

such other investments the investment in which will not, as evidenced by a letter from each of the Rating Agencies, result in the downgrading or withdrawal of the Ratings of the Certificates.

provided, however , that no such instrument shall be an Eligible Investment if such instrument evidences either (i) a right to receive only interest payments with respect to the obligations underlying such instrument, or (ii) both principal and interest payments derived from obligations underlying such instrument and the principal and interest payments with respect to such instrument provide a yield to maturity of greater than 120% of the yield to maturity at par of such underlying obligations.

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

ERISA-Qualifying Underwriting :  A best efforts or firm commitment underwriting or private placement that meets the requirements (without regard to the ratings requirements) of an Underwriter’s Exemption.

ERISA-Restricted Certificate :  As set forth in the Preliminary Statement.

ERISA-Restricted Cap Certificate :  As set forth in the Preliminary Statement.

Escrow Account :  The separate account or accounts created and maintained by the Master Servicer or a Servicer pursuant to Section 3.06.

Escrow Payments :  With respect to any Mortgage Loan, the amounts constituting ground rents, taxes, mortgage insurance premiums, fire and hazard insurance premiums, and any other payments required to be escrowed by the Mortgagor with the mortgagee pursuant to the Mortgage, applicable law or any other related document.

Event of Default :  As defined in Section 8.01 hereof.

Excess Funds :  For the Class 5-A-1 Certificates and any Distribution Date, the excess, if any, of (x) the sum of the related Yield Maintenance Agreement Payment for prior Distribution Dates over (y) the sum of amounts actually paid from the Yield Maintenance Account with respect to the related Yield Maintenance Amounts and related Yield Maintenance Amount Shortfalls for such prior Distribution Dates.

Excess Liquidation Proceeds :  With respect to any Distribution Date and a Liquidated Mortgage Loan, an amount as of the date of the liquidation equal to Net Liquidation Proceeds, if any, received during the month in which such liquidation occurred, to the extent applied as recoveries of interest at the Net Mortgage Rate and to principal of the Liquidated Mortgage Loan minus the sum of (a) the Stated Principal Balance of the Liquidated Mortgage Loan as of the date of such liquidation and (b) interest at the applicable Net Mortgage Rate from the related Due Date as to which interest was last paid or advanced (and not reimbursed) to Certificateholders up to the related Due Date in the month in which Liquidation Proceeds are required to be distributed on the Stated Principal Balance of such Liquidated Mortgage Loan.

Excess Loss :  With respect to the Certificates, the amount of any (i) Fraud Loss on a Mortgage Loan realized after the related Fraud Loss Coverage Termination Date, (ii) Special Hazard Loss on a Mortgage Loan realized after the related Special Hazard Coverage Termination Date or (iii) Bankruptcy Loss on a Mortgage Loan realized after the related Bankruptcy Coverage Termination Date.

Exchange Act : The Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder.

Exchangeable Certificates : As specified in the Preliminary Statement.

Exchangeable REMIC Certificates :  As specified in the Preliminary Statement.

Expense Fee Rate :  As to each Mortgage Loan, the sum of the related Servicing Fee Rate, the Trust Administrator Fee Rate, if applicable, the rate at which any lender paid primary mortgage guaranty insurance fee accrues, if applicable, and the Qualified Substitute Mortgage Loan Excess Interest Rate, if applicable.

Expense Fees :  As to each Mortgage Loan, the sum of the related Servicing Fee, the Trust Administrator Fee, if applicable, any lender paid primary mortgage guaranty insurance premium, if applicable, and any Qualified Substitute Mortgage Loan Excess Interest, if applicable.

Fair Credit Reporting Act :  The Fair Credit Reporting Act of 1970, as amended.

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

Federal Funds Rate : The interest rate at which depository institutions lend balances at the Federal Reserve to other depository institutions overnight.

FHLMC :  The Federal Home Loan Mortgage Corporation, a corporate instrumentality of the United States created and existing under Title III of the Emergency Home Finance Act of 1970, as amended, or any successor thereto.

Fifth Third :  Fifth Third Mortgage Company, and its successors and assigns.

Fifth Third Serviced Mortgage Loans :  The Mortgage Loans identified as such on the Mortgage Loan Schedule.

Fifth Third Servicing Agreement:  That certain Reconstituted Servicing Agreement dated as of January 1, 2007 among DLJMC, Fifth Third, the Master Servicer, the Trustee and the Trust Administrator.

Financing Statement :  A financing statement in the form of a UCC-1 or UCC-3, as applicable, filed pursuant to the Uniform Commercial Code to perfect a security interest in the Cooperative Shares and Pledge Instruments.

Fitch:  Fitch Ratings or any successor thereto.

FNMA :  The Federal National Mortgage Association, a federally chartered and privately owned corporation organized and existing under the Federal National Mortgage Association Charter Act, or any successor thereto.

Form 8-K Disclosure Information : As defined in Section 13.04.

Fraud Loan :  A Liquidated Mortgage Loan as to which a Fraud Loss has occurred.

Fraud Loss Coverage Amount :  As of the Closing Date, $15,698,076, subject to reduction from time to time by the amount of Fraud Losses allocated to the Group C-B  Certificates.  In addition, (a) on each anniversary prior to the fifth anniversary of the Cut-off Date, the Fraud Loss Coverage Amount will be reduced to an amount equal to (i) on the first anniversary of the Cut-off Date, the lesser of (A) 2.0% of the aggregate Stated Principal Balance of the Group 2, Group 3, Group 4 and Group 5 Mortgage Loans and (B) the excess of such Fraud Loss Coverage Amount as of the Cut-off Date over the cumulative amount of Fraud Losses on the Group 2, Group 3, Group 4 and Group 5 Mortgage Loans allocated to the Group C-B  Certificates since the Cut-off Date and (ii) on the second, third and fourth anniversaries of the Cut-off Date, the lesser of (A) 1.0% of the aggregate Stated Principal Balance of the Group 2, Group 3, Group 4 and Group 5 Mortgage Loans and (B) the excess of such Fraud Loss Coverage Amount as of the preceding anniversary of the Cut-off Date over the cumulative amount of Fraud Losses on the Group 2, Group 3, Group 4 and Group 5 Mortgage Loans allocated to the Group C-B  Certificates since such preceding anniversary and (b) on the fifth anniversary of the Cut-off Date, to zero.

Fraud Loss Coverage Termination Date :  The point in time at which the applicable Fraud Loss Coverage Amount is reduced to zero.

Fraud Losses :  Realized Losses on the Mortgage Loans as to which a loss is sustained by reason of a default arising from fraud, dishonesty or misrepresentation in connection with the related Mortgage Loan, including a loss by reason of the denial of coverage under any related Mortgage Guaranty Insurance Policy because of such fraud, dishonesty or misrepresentation.

GreenPoint :  GreenPoint Mortgage Funding, Inc., a New York corporation, and its successors and assigns.

GreenPoint Mortgage Loans :  The Mortgage Loans identified as such on the Mortgage Loan Schedule, for which GreenPoint is the applicable Seller.

GreenPoint Serviced Mortgage Loans :  The Mortgage Loans identified as such on the Mortgage Loan Schedule, for which GreenPoint is the applicable Servicer.

Group :  When used with respect to the Mortgage Loans, any of Group 1, Group 2, Group 3, Group 4, Group 5, or with respect to the Certificates, the Class or Classes of Certificates that relate to the corresponding Group.

Group 1 :  With respect to the Mortgage Loans, the pool of fixed rate Mortgage Loans identified in the related Mortgage Loan Schedule as having been assigned to Group 1 or with respect to the Certificates, as set forth in the Preliminary Statement.

Group 1 Certificates :  As set forth in the Preliminary Statement.

Group 1 Mezzanine Certificates :  As set forth in the Preliminary Statement.

Group 1 Mortgage Loan :  Any Mortgage Loan in Loan Group 1.

Group 1 Senior Certificates:  As set forth in the Preliminary Statement.

Group 1 Special Servicer :  Any special servicer appointed by the Class 1-X Certificateholder pursuant to Section 3.25.

Group 1 Subordinate Certificates :  As set forth in the Preliminary Statement.

Group 2 :  With respect to the Mortgage Loans, the pool of fixed rate Mortgage Components derived from the Pool 2 Mortgage Loans identified in the related Mortgage Loan Schedule as having been assigned to Pool 2 or with respect to the Certificates, as set forth in the Preliminary Statement.

Group 2 Certificates:  As set forth in the Preliminary Statement.

Group 2 Mortgage Loan :  Any Mortgage Component in Loan Group 2.

Group 3 :  With respect to the Mortgage Loans, the pool of fixed rate Mortgage Components derived from the Pool 2 Mortgage Loans identified in the related Mortgage Loan Schedule as having been assigned to Pool 2 or with respect to the Certificates, as set forth in the Preliminary Statement.

Group 3 Certificates : As set forth in the Preliminary Statement.

Group 3 Mortgage Loan :  Any Mortgage Component in Loan Group 3.

Group 4 :  With respect to the Mortgage Loans, the pool of fixed rate Mortgage Components derived from the Pool 2 Mortgage Loans identified in the related Mortgage Loan Schedule as having been assigned to Pool 2 or with respect to the Certificates, as set forth in the Preliminary Statement.

Group 4 Certificates :  As set forth in the Preliminary Statement.

Group 4 Mortgage Loan :  Any Mortgage Component in Loan Group 4.

Group 5 :  With respect to the Mortgage Loans, the pool of fixed rate Mortgage Loans identified in the related Mortgage Loan Schedule as having been assigned to Pool 3 or with respect to the Certificates, as set forth in the Preliminary Statement.

Group 5 Certificates :  As set forth in the Preliminary Statement.

Group 5 Liquidation Amount :  For any Distribution Date, the aggregate, for each Group 5 Mortgage Loan that became a Liquidated Mortgage Loan during the calendar month preceding the month of that Distribution Date, of the lesser of (i) the Group 5 Priority Percentage of the Stated Principal Balance of that Mortgage Loan and (ii) the Group 5 Priority Percentage of the Liquidation Principal for that Mortgage Loan.

Group 5 Mortgage Loan :  Any Mortgage Loan in Loan Group 5.

Group 5 Percentage :  For any Distribution Date will equal the lesser of (a) 100% and (b) the aggregate Class Principal Balance of the Class 5-A-4, Class 5-A-6, Class 5-A-7 and Class 5-A-16 Certificates divided by the aggregate Stated Principal Balance of the Group 5 Mortgage Loans, in each case immediately prior to any allocations of losses or distributions on that Distribution Date.

Group 5 Priority Amount :  For any Distribution Date, the sum of (i) the Group 5 Priority Percentage of the Principal Payment Amount for Loan Group 5, (ii) the Group 5 Priority Percentage of the Principal Prepayment Amount for Loan Group 5 and (iii) the Group 5 Liquidation Amount.

Group 5 Priority Percentage :  For any Distribution Date, the product of (a) the Group 5 Percentage and (b) the Stepdown Percentage.

Group C-B Component Balance :  With respect to Loan Group 2, Loan Group 3, Loan Group 4 and Loan Group 5, the excess, if any, of the then outstanding aggregate Stated Principal Balance of the Mortgage Loans in that Loan Group over the then outstanding aggregate Class Principal Balance of the related Senior Certificates.

Group C-B Mortgage Loans:  The Mortgage Loans in Loan Group 2, Loan Group 3, Loan Group 4 and Loan Group 5.

Group C-B Percentage :  With respect to any Distribution Date and the Group C-B  Certificates, the aggregate Class Principal Balance of the Group C-B Certificates immediately prior to the Distribution Date divided by the outstanding aggregate Stated Principal Balance of the Group 2, Group 3, Group 4 and Group 5 Mortgage Loans as of the Due Date for that Distribution Date.

Group C-B Principal Distribution Amount :  With respect to any Distribution Date and the Group C-B Certificates, will equal the excess of (A) the sum of (i) the related Subordinate Percentage of the Principal Payment Amount for Loan Group 2, (ii) the related Subordinate Percentage of the Principal Payment Amount for Loan Group 3, (iii) the related Subordinate Percentage of the Principal Payment Amount for Loan Group 4, (iv) the related Subordinate Percentage of the Principal Payment Amount for Loan Group 5, (v) the related Subordinate Prepayment Percentage of the Principal Prepayment Amount for Loan Group 2, (vi) the related Subordinate Prepayment Percentage of the Principal Prepayment Amount for Loan Group 3, (vii) the related Subordinate Prepayment Percentage of the Principal Prepayment Amount for Loan Group 4, (vii) the related Subordinate Prepayment Percentage of the Principal Prepayment Amount for Loan Group 5, (viii) the Subordinate Liquidation Amount for Loan Group 2, (viii) the Subordinate Liquidation Amount for Loan Group 3, (ix) the Subordinate Liquidation Amount for Loan Group 4, (x) the Subordinate Liquidation Amount for Loan Group 5 over (B) the sum of the sum of (x) if the aggregate Class Principal Balance of the Group 2, Group 3, Group 4 or Group 5 Certificates has been reduced to zero, principal paid from the Available Distribution Amount of the Loan Group or Groups related to the Certificates paid in full to the other Group or Groups, as described in Section 4.06(a), (y) the amounts paid from the Available Distribution Amount for the Overcollateralized Group or Groups to the Senior Certificates of the Undercollateralized Group or Groups, as described in Section 4.06(b) and (z) the sum of (a) the related Subordinate Prepayment Percentage of the Capitalization Reimbursement Amount for Loan Group 2, (b) the related Subordinate Prepayment Percentage of the Capitalization Reimbursement Amount for Loan Group 3 (c) the related Subordinate Prepayment Percentage of the Capitalization Reimbursement Amount for Loan Group 4 and (c) the related Subordinate Prepayment Percentage of the Capitalization Reimbursement Amount for Loan Group 5.

Independent : When used with respect to any accountants, a Person who is “independent” within the meaning of Rule 2-01(B) of the Securities and Exchange Commission’s Regulation S-X.  Independent means, when used with respect to any other Person, a Person who (A) is in fact independent of another specified Person and any affiliate of such other Person, (B) does not have any material direct or indirect financial interest in such other Person or any affiliate of such other Person, (C) is not connected with such other Person or any affiliate of such other Person as an officer, employee, promoter, underwriter, Trust Administrator, partner, director or Person performing similar functions and (D) is not a member of the immediate family of a Person defined in clause (B) or (C) above.

IndyMac :  IndyMac Bank, F.S.B., and its successors and assigns.

IndyMac Serviced Mortgage Loans :  The Mortgage Loans identified as such on the Mortgage Loan Schedule.

IndyMac Servicing Agreement:  That certain Reconstituted Servicing Agreement dated as of January 1, 2007 among DLJMC, IndyMac, the Master Servicer, the Trustee and the Trust Administrator.

Indirect Participants :  Entities, such as banks, brokers, dealers and trust companies, that clear through or maintain a custodial relationship with a Participant, either directly or indirectly.

Initial Bankruptcy Loss Coverage Amount :  With respect to the Group C-B  Certificates, $150,000.

Initial Class Principal Balance :  As set forth in the Preliminary Statement.

Insurance Policy :  With respect to any Mortgage Loan included in the Trust Fund, any Mortgage Guaranty Insurance Policy, any standard hazard insurance policy, flood insurance policy or title insurance policy, including all riders and endorsements thereto in effect, including any replacement policy or policies for any Insurance Policies.

Insurance Proceeds :  Amounts paid pursuant to any insurance policy with respect to a Mortgage Loan that have not been used to restore the related mortgaged property or released to the mortgagor in accordance with the related Servicer’s or the related Designated Servicer’s normal servicing procedures.

Interest Determination Date : With respect to the LIBOR Certificates and for each Accrual Period, the second LIBOR Business Day preceding the commencement of such Accrual Period.

Interest Distribution Amount :  With respect to any Distribution Date and interest-bearing Class of Certificates (other than the Group 1 Certificates), the sum of (i) one month’s interest accrued during the related Accrual Period at the applicable Pass-Through Rate for such Class on the related Class Principal Balance or Class Notional Amount, as applicable, subject to reduction pursuant to Section 4.01(B), and (ii) any Class Unpaid Interest Amounts for such Class and Distribution Date.

Interest Rate : With respect to each Subsidiary REMIC Regular Interest and each Middle REMIC Regular Interest, the applicable rate set forth or calculated in the manner described in the Preliminary Statement.

Interest Rate Cap Accounts :  The Class 1-A-1C Interest Rate Cap Account, the Class 1-A-2B Interest Rate Cap Account, the Class 1-M-4 Interest Rate Cap Account, the Class 1-M-5 Interest Rate Cap Account and the Class 1-B-1 Interest Rate Cap Account. Ownership of the Interest Rate Cap Accounts is evidenced by the Class 1-X Certificates.

Interest Rate Cap Agreements :  Class 1-A-1C Interest Rate Cap Agreement, the Class 1-A-2B Interest Rate Cap Agreement, the Class 1-M-4 Interest Rate Cap Agreement, the Class 1-M-5 Interest Rate Cap Agreement and the Class 1-B-1 Interest Rate Cap Agreement.

Interest Rate Cap Agreement Counterparty :  Credit Suisse International.

Interest Rate Cap Agreement Termination Date :  With respect to the Class 1-A-1C Interest Rate Cap Agreement, the Distribution Date in November 2009, after any required payment is made.  With respect to the Class 1-A-2B Interest Rate Cap Agreement, the Distribution Date in April 2010, after any required payment is made.  With respect to the Class 1-M-4 Interest Rate Cap Agreement, the Distribution Date in January 2010, after any required payment is made.  With respect to the Class 1-M-5 Interest Rate Cap Agreement, the Distribution Date in January 2010, after any required payment is made.  With respect to the Class 1-B-1 Interest Rate Cap Agreement, the Distribution Date in January 2010, after any required payment is made.  

Interest Remittance Amount :  For any Distribution Date and Loan Group 1, an amount equal to the sum of (1) all interest collected (other than related Payaheads, if applicable) or advanced in respect of Scheduled Payments on the Group 1 Mortgage Loans during the related Collection Period, the interest portion of Payaheads previously received and intended for application in the related Collection Period and the interest portion of all Payoffs and Curtailments received on the Group 1 Mortgage Loans during the related Prepayment Period (other than interest on Principal Prepayments in full that occur during the portion of the Prepayment Period that is in the same calendar month as the related Distribution Date), less (x) the Servicing Fees and any lender paid Primary Insurance Policy premiums with respect to the Group 1 Mortgage Loans and (y) unreimbursed Advances and other amounts due to the Servicers, the Master Servicer, the Trust Administrator or the Trustee with respect to the Group 1 Mortgage Loans, to the extent allocable to interest, (2) all Compensating Interest Payments paid by the Servicers or the Master Servicer with respect to the Group 1 Mortgage Loans with respect to such Distribution Date and any compensating interest payment received from any Designated Servicer with respect to that Distribution Date, (3) the portion of any Substitution Adjustment Amount and Repurchase Price paid with respect to the Group 1 Mortgage Loans during the calendar month immediately preceding the Distribution Date, in each case allocable to interest and the proceeds of any purchase of the Mortgage Loans by the Terminating Entity pursuant to Section 11.01 in an amount not exceeding the interest portion of the Par Value and (4) all Net Liquidation Proceeds, and any Insurance Proceeds (to the extent attributable to Mortgage Guaranty Insurance Policy proceeds where related REO Property has been sold during the month in which such Distribution Date occurs) and other recoveries (net of unreimbursed Advances, Servicing Advances and expenses, to the extent allocable to interest, and unpaid Servicing Fees) collected with respect to the Group 1 Mortgage Loans during the prior calendar month, to the extent allocable to interest.

Interest Shortfall :  For any Distribution Date, an amount equal to the aggregate shortfall, if any, in collections of interest (adjusted to the related Net Mortgage Rate) on the Group 1 Mortgage Loans resulting from (a) Prepayment Interest Shortfalls to the extent not covered by a Compensating Interest Payment or any compensating interest payment received from any Designated Servicer and (b) interest payments on certain of the Group 1 Mortgage Loans being limited pursuant to the provisions of the Relief Act.

Lender Paid Mortgage Guaranty Insurance Policy :  Any lender paid Mortgage Guaranty Insurance Policy.

LIBOR Business Day :  Any day other than (i) a Saturday or a Sunday or (ii) a day on which banking institutions in the State of New York or in the City of London, England are required or authorized by law to be closed.

LIBOR Certificates :  As set forth in the Preliminary Statement.

Liquidated Mortgage Loan :  With respect to any Distribution Date, a defaulted Mortgage Loan (including any REO Property) which was liquidated in the calendar month preceding the month of such Distribution Date and as to which the related Servicer has determined (with respect to the Non-Designated Mortgage Loans, in accordance with this Agreement, or with respect to the Designated Mortgage Loans, in accordance with the related Designated Servicing Agreement) that it has received all amounts it expects to receive in connection with the liquidation of such Mortgage Loan, including the final disposition of the related REO Property.

Liquidation Expenses :  Customary and reasonable “out of pocket” expenses incurred by a Servicer (or the related Sub-Servicer) in connection with the liquidation of any defaulted Mortgage Loan and not recovered by such Servicer (or the related Sub-Servicer) under a Mortgage Guaranty Insurance Policy for reasons other than such Servicer’s failure to comply with Section 3.09 hereof, such expenses including, without limitation, legal fees and expenses, any unreimbursed amount expended by a Servicer pursuant to Section 3.11 hereof respecting the related Mortgage and any related and unreimbursed expenditures for real estate property taxes or for property restoration or preservation to the extent not previously reimbursed under any hazard insurance policy for reasons other than such Servicer’s failure to comply with Section 3.11 hereof.

Liquidation Payment Amount :  For any Distribution Date, the lesser of (a) the aggregate amount of Liquidation Shortfalls and (b) the amount on deposit in the Liquidation Reserve Fund.

Liquidation Principal :  As to any Distribution Date and Loan Group, the principal portion of Net Liquidation Proceeds received with respect to each Mortgage Loan in that Loan Group which became a Liquidated Mortgage Loan, but not in excess of the principal balance of that Mortgage Loan, during the preceding calendar month.

Liquidation Proceeds :  Amounts, including Insurance Proceeds, received in connection with the partial or complete liquidation of defaulted Mortgage Loans, whether through trustee’s sale, foreclosure sale or otherwise or amounts received in connection with any condemnation or partial release of a Mortgaged Property related to a Mortgage Loan and any other proceeds received in connection with an REO Property, other than Recoveries.

Liquidation Reserve Fund :  As defined in Section 4.08.

Liquidation Shortfall :  With respect to any Distribution Date and Liquidated Mortgage Loan serviced by Banco Popular, an amount as of the date of the liquidation equal to (i) the sum of (a) the Stated Principal Balance of the Liquidated Mortgage Loan as of the date of such liquidation and (b) interest at the applicable Net Mortgage Rate from the related Due Date as to which interest was last paid or advanced (and not reimbursed) to Certificateholders up to the related Due Date in the month in which Liquidation Proceeds are required to be distributed on the Stated Principal Balance of such Liquidated Mortgage Loan, minus (ii) the Net Liquidation Proceeds, if any, received during the month in which such liquidation occurred, to the extent applied as recoveries of interest at the Net Mortgage Rate and to principal of the Liquidated Mortgage Loan.

Loan Group :  Any of Loan Group 1, Loan Group 2, Loan Group 3, Loan Group 4 and Loan Group 5, as applicable.

Loan Group 1 :  As of the Cut-Off Date, consists of all of the Pool 1 Mortgage Loans.

Loan Group 2 :  As of the Cut-Off Date, consists of a portion of each Pool 2 Mortgage Loan with a Net Mortgage Rate greater than or equal to 5.50% per annum and less than 6.00% per annum, equal to:

 

 

 

 

The Stated Principal Balance of such Mortgage Loan

x

1 −

(Net Mortgage Rate − 5.50%)

0.50%

 

 

Loan Group 3 :  As of the Cut-Off Date, consists of (a) a portion of each Pool 2 Mortgage Loan with a Net Mortgage Rate greater than 5.50% per annum and less than 6.00% per annum, equal to:

 

 

 

 

The Stated Principal Balance of such Mortgage Loan

x

 

(Net Mortgage Rate − 5.50%)

0.50%

 

and (b) a portion of each Pool 2 Mortgage Loan with a Net Mortgage Rate greater than or equal to 6.00% per annum and less than 6.50% per annum, equal to:

 

 

 

 

The Stated Principal Balance of such Mortgage Loan

x

1−

(Net Mortgage Rate −6.00%)

0.50%

 

 

Loan Group 4 :  As of the Cut-Off Date, consists of (a) a portion of each Pool 2 Mortgage Loan with a Net Mortgage Rate greater than 6.00% per annum and less than 6.50% per annum, equal to:

 

 

 

 

The Stated Principal Balance of such Mortgage Loan

x

 

(Net Mortgage Rate − 6.00%)

0.50%

 

and (b)  100% of the principal balance of each Pool 2 Mortgage Loan with a Net Mortgage Rate greater than or equal to 6.50% per annum.

Loan Group 5:  As of the Cut-Off Date, consists of all of the Pool 3 Mortgage Loans.

Loan-to-Value Ratio :  As of any date, the fraction, expressed as a percentage, the numerator of which is the Stated Principal Balance of the related Mortgage Loan at the date of determination and the denominator of which is the Appraised Value of the Mortgaged Property.

Lost Mortgage Note :  Any Mortgage Note the original of which was permanently lost or destroyed and has not been replaced.

Lower Tier Interest :  As described in the Preliminary Statement.

Majority Servicer :  With respect to any Optional Termination, the Servicer servicing the largest percentage of Mortgage Loans in the Loan Group(s) to be purchased in such Optional Termination (by Stated Principal Balance of outstanding Mortgage Loans on the Optional Termination Date) which has notified the Trust Administrator of its intention to be the Terminating Entity of such Loan Group(s) pursuant to Section 11.02(a).

Master REMIC :  As described in the Preliminary Statement.

Master Servicer :  Wells Fargo.

Master Servicer Employees :  As defined in Section 3.18.

Maximum Cap Rate :  With respect to the Class 5-A-1 Certificates, 8.900%,  per annum.

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.

MIN :  The mortgage identification number for any MERS Mortgage Loan.

Middle REMIC 1 :  As described in the Preliminary Statement.

Middle REMIC 2 :  As described in the Preliminary Statement.

Middle REMIC Regular Interest :  Any one of the “regular interests” in Middle REMIC 1 or Middle REMIC 2, as applicable, as described in the Preliminary Statement.

Modification Oversight Agent :  SPS and any successor, as modification oversight agent hereunder.

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 Excess Cashflow :  For any Distribution Date, an amount equal to the sum of the Monthly Excess Interest and Overcollateralization Release Amount, if any, for such date.

Monthly Excess Interest :  As to any Distribution Date, the Interest Remittance Amount remaining after the application of payments pursuant to clauses (i) through (vii) of Section 4.02(I)(a) and the Principal Payment Amount remaining after the application of payments pursuant to clauses (i) through (vii) of Section 4.02(I)(b) or 4.02(I)(c), as applicable.

Moody’s :  Moody’s Investors Service, Inc., or any successor thereto.

Mortgage :  With respect to a Mortgage Loan, the mortgage, deed of trust or other instrument creating a first lien on a fee simple or leasehold estate in real property securing a Mortgage Note.

Mortgage Component :  That portion of a Mortgage Loan in Pool 2 that comprise the Loan Groups related to such Pool.  With respect to Loan Groups, a Mortgage Component is also considered a Mortgage Loan.

Mortgage File :  For each Mortgage Loan, the Trustee Mortgage File and the Servicer Mortgage File.

Mortgage Guaranty Insurance Policy :  Each policy of primary mortgage guaranty insurance or any replacement policy therefor with respect to any Mortgage Loan.

Mortgage Loans :  Such of the mortgage loans and cooperative loans transferred and assigned to the Trustee pursuant to the provisions hereof as from time to time are held as a part of the Trust Fund (including any REO Property), the mortgage loans so held being identified in the Mortgage Loan Schedule, notwithstanding foreclosure or other acquisition of title of the related Mortgaged Property.  With respect to each Mortgage Loan that is a Cooperative Loan, if any, “Mortgage Loan” shall include, but not be limited to, the related Mortgage Note, Security Agreement, Assignment of Proprietary Lease, Recognition Agreement, Cooperative Shares and Proprietary Lease and, with respect to each Mortgage Loan other than a Cooperative Loan, “Mortgage Loan” shall include, but not be limited to the related Mortgages and the related Mortgage Notes.  As the context requires, reference herein to Mortgage Loans sometimes refer to one or more Mortgage Components related to that Mortgage Loan.

Mortgage Loan Auction Price :  The price, calculated as set forth in Section 11.01, to be paid in connection with the purchase of the Mortgage Loans in Pool 2 and Pool 3 by the Auction Purchaser.

Mortgage Loan Purchase Price :  The price, calculated as set forth in Section 11.01, to be paid in connection with the purchase of the applicable Mortgage Loans pursuant to an Optional Termination.

Mortgage Loan Schedule :  The list of Mortgage Loans (as from time to time amended by the related Seller to reflect the addition of Qualified Substitute Mortgage Loans and the purchase of Mortgage Loans pursuant to Section 2.02 or 2.03) transferred to the Trustee as part of the Trust Fund and from time to time subject to this Agreement, attached hereto as Schedule I, setting forth the following information with respect to each Mortgage Loan and applicable Servicer by Loan Group:

1.

the Mortgage Loan identifying number;

2.

a code indicating the type of Mortgaged Property (detached single family dwelling, PUD, condominium unit, two- to four-unit residential property or Cooperative Unit) and the occupancy status;

3.

the original months to maturity or the remaining months to maturity from the Cut-off Date, in any case based on the original amortization schedule and, if different, the maturity expressed in the same manner but based on the actual amortization schedule;

4.

the Loan-to-Value Ratio at origination;

5.

a code indicating the existence of a subordinate lien for the related mortgaged property;

6.

the combined loan-to-value ratio at origination;

7.

the related borrower’s debt-to-income ratio;

8.

the related borrower’s credit score at origination;

9.

the Mortgage Rate as of the Cut-off Date;

10.

the stated maturity date;

11.

the amount of the Scheduled Payment as of the Cut-off Date;

12.

the original principal amount of the Mortgage Loan;

13.

the principal balance of the Mortgage Loan as of the close of business on the Cut-off Date, after deduction of payments of principal due on or before the Cut-off Date whether or not collected;

14.

a code indicating the purpose of the Mortgage Loan (i.e., purchase, rate and term refinance, equity take-out refinance);

15.

a code indicating whether a Prepayment Premium is required to be paid in connection with a prepayment of the Mortgage Loan and the term and the amount of the Prepayment Premium;

16.

the Expense Fee Rate as of the Cut-off Date;

17.

the Servicing Fee Rate (which may be disclosed on the Mortgage Loan Schedule in two parts identified as the servicing fee and the master servicing fee or in two parts identified as the “Lender Fee” and the “Mgmt Fee” or in two parts identified as “service fee” and “excess fee”);

18.

the Servicer of the Mortgage Loan;

19.

a code indicating whether the Mortgage Loan is covered under a borrower paid or lender paid Primary Insurance Policy (and, if so, the name of the insurance carrier) and the rate at which any lender paid Primary Insurance Policy premium is calculated, if applicable;