AMENDMENT
      TO RECONSTITUTED SERVICING AGREEMENT

    


    THIS
      AMENDMENT TO RECONSTITUTED SERVICING AGREEMENT is dated as of December 3, 2007
      (herein referred to as this “Amendment”)
      and is
      made by and among HSBC BANK USA, NATIONAL ASSOCIATION, as seller (the
“Seller”),
      HSI
      ASSET SECURITIZATION CORPORATION, as depositor (the “Depositor”),
      WELLS
      FARGO BANK, N.A., as servicer, (the “Servicer”),
      CITIMORTGAGE, INC., as master servicer, (the “Master
      Servicer”)
      and is
      acknowledged by DEUTSCHE BANK NATIONAL TRUST COMPANY, a national banking
      association, as trustee (the “Trustee”).

     

    URECITALSU

    


    WHEREAS,
      the Seller, the Depositor, the Servicer, the Master Servicer and the Trustee
      entered into a Reconstituted Servicing Agreement dated as of May 1, 2007 (the
      “Agreement”),
      pursuant to which the Servicer agreed to continue to service certain Mortgage
      Loans in accordance with the terms thereof.

     

    NOW,
      THEREFORE, in consideration of the preceding premises and assumptions and other
      good and valuable consideration, the receipt and adequacy of which are hereby
      acknowledged, the Seller, the Depositor, the Servicer, the Master Servicer
      and
      the Trustee agree, effective as of September 1, 2007, as follows:

     

    
      
        	
                Section
                  1.

              	
                Definitions.
                  All capitalized terms used in this Amendment which are not specifically
                  defined herein shall have the meanings assigned to them in the
                  Agreement.

              
	 	 
	
                Section
                  2.

              	
                Amendments
                  to AgreementU.

              
	 	 
	
                (a)
                  

              	
                The
                  first paragraph of the Recitals
                  shall be amended and restated in its entirety to read as
                  follows:

              
	 	 
	 	
                WHEREAS,
                  the Seller has conveyed certain mortgage loans listed on Schedule
                  1
                  attached hereto (including those certain mortgage loans, the servicing
                  of
                  which was transferred from American Home Mortgage Servicing, Inc.
                  to the
                  Servicer on September 1, 2007) (the “Mortgage Loans”) to the Depositor,
                  which in turn has conveyed the Mortgage Loans to the Trustee, pursuant
                  to
                  a pooling and servicing agreement, dated as of May 1, 2007 (the
“Pooling
                  and Servicing Agreement”), attached as Exhibit B hereto, among the
                  Trustee, Citibank, N.A., as securities administrator (the “Securities
                  Administrator”), the Master Servicer, the Depositor and Wells Fargo Bank,
                  N.A., as the custodian;

              
	 	 
	
                Section
                  3.

              	
                Agreement
                  to Remain in Full Force and EffectU.
                  Except as modified and amended hereby, all other terms and conditions
                  of
                  the Agreement shall remain in full force and effect and are hereby
                  ratified and confirmed by the parties
                  hereto.

              


      

       

      
        
           

        

        
          -
            1 -

          
            

          

        

        
           

        

      

       

      
        	
                Section
                  4.

              	
                Counterparts.
                  This Amendment may be executed simultaneously in any number of
                  counterparts, each of which counterparts shall be deemed an original,
                  and
                  such counterparts shall constitute one and the same
                  instrument.

              
	 	 
	
                Section
                  5.

              	
                Governing
                  Law.
                  This Amendment shall be constructed in accordance with the internal
                  laws
                  of the State of New York applicable to agreements made and to be
                  performed
                  in said State, and the obligations, rights and remedies of the
                  parties
                  hereunder shall be determined in accordance with such
                  laws.

              


      

    

    


     

    [Signature
      Pages Follow]

     

    
      
         

      

      
        -
          2 -

        
          

        

      

      
         

      

    



    IN
      WITNESS WHEREOF, the Seller, the Depositor, the Servicer, the Master Servicer
      and the Trustee have caused their names to be signed hereto by their respective
      officers thereunto duly authorized, all as of the day and year first above
      written.

     

    HSBC
      BANK USA, NATIONAL ASSOCIATION,

    as
      Seller

     

    By:    
      /s/
      Andrea
      Lenox                                                    

    Name:
      Andrea Lenox

    Title:
      Officer #16487

     

    HSI
      ASSET SECURITIZATION CORPORATION,

    as
      Depositor

     

    By:    
      /s/
      Andrea
      Lenox                                                    

    Name:
      Andrea Lenox

    Title:
      Vice President

     

    WELLS
      FARGO BANK, N.A.,

    as
      Servicer

     

    By:    
      /s/
      Laurie
      McGoogan                                             

    Name:
      Laurie McGoogan

    Title:
      Vice President

     

    CITIMORTGAGE,
      INC.,

    as
      Master
      Servicer

    


    By:    
      /s/
      Tommy R.
      Harris                                               

    Name:
      Tommy R. Harris

    Title:
      Sr. Vice President

     

    Acknowledged:
      

     

    DEUTSCHE
      BANK NATIONAL TRUST COMPANY,

    as
      Trustee and not individually

     

    By:    
      /s/
      Manuel
      Rivas                                                     
    

    Name:
      Manuel Rivas

    Title:
      Authorized Signer

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    Schedule
      1

     

    
      	 	
              LOAN
                

              ID

            	 	
              LOAN

              ID

            	 	
              LOAN

              ID

            	 	
              LOAN

              ID

            	 	
              LOAN
                

              ID

            	 	
              LOAN

              ID

            	 	
              LOAN

              ID

            
	
              1

            	
              1235889

            	
              52

            	
              2350061085070

            	
              103

            	
              91666693

            	
              154

            	
              1654476

            	
              205

            	
              1686876

            	
              256

            	
              1699232

            	
              308

            	
              1719752

            
	
              2

            	
              1050061016270

            	
              53

            	
              2360061028840

            	
              104

            	
              91666727

            	
              155

            	
              1654532

            	
              206

            	
              1687013

            	
              257

            	
              1699483

            	
              309

            	
              1719927

            
	
              3

            	
              2010061036659

            	
              54

            	
              90483546

            	
              105

            	
              91670299

            	
              156

            	
              1654593

            	
              207

            	
              1687114

            	
              258

            	
              1699598

            	
              310

            	
              1720438

            
	
              4

            	
              2010061039417

            	
              55

            	
              91079038

            	
              106

            	
              91684274

            	
              157

            	
              1654796

            	
              208

            	
              1687286

            	
              259

            	
              1699631

            	
              311

            	
              1720475

            
	
              5

            	
              2010061039696

            	
              56

            	
              91237032

            	
              107

            	
              91686576

            	
              158

            	
              1657077

            	
              209

            	
              1687515

            	
              260

            	
              1699731

            	
              312

            	
              1721056

            
	
              6

            	
              2010061126450

            	
              57

            	
              91247510

            	
              108

            	
              91690214

            	
              159

            	
              1657641

            	
              210

            	
              1688177

            	
              261

            	
              1700183

            	
              313

            	
              1721618

            
	
              7

            	
              2020061037113

            	
              58

            	
              91292409

            	
              109

            	
              91694521

            	
              160

            	
              1660391

            	
              211

            	
              1688233

            	
              262

            	
              1700328

            	
              314

            	
              1722589

            
	
              8

            	
              2020061038613

            	
              59

            	
              91373472

            	
              110

            	
              91698845

            	
              161

            	
              1660685

            	
              212

            	
              1688266

            	
              263

            	
              1700842

            	
              315

            	
              1723004

            
	
              9

            	
              2020061047750

            	
              60

            	
              91381046

            	
              111

            	
              91703447

            	
              162

            	
              1662500

            	
              213

            	
              1689391

            	
              264

            	
              1701035

            	
              316

            	
              1723180

            
	
              10

            	
              2020061048330

            	
              61

            	
              91452565

            	
              112

            	
              91709774

            	
              163

            	
              1663472

            	
              214

            	
              1689838

            	
              265

            	
              1701360

            	
              317

            	
              1724068

            
	
              11

            	
              2030061018840

            	
              62

            	
              91480897

            	
              113

            	
              91720987

            	
              164

            	
              1664351

            	
              215

            	
              1689991

            	
              266

            	
              1701508

            	
              318

            	
              1724703

            
	
              12

            	
              2030061121430

            	
              63

            	
              91495341

            	
              114

            	
              91729442

            	
              165

            	
              1665208

            	
              216

            	
              1690136

            	
              267

            	
              1701874

            	
              319

            	
              1725350

            
	
              13

            	
              2050061032541

            	
              64

            	
              91508176

            	
              115

            	
              91730408

            	
              166

            	
              1665516

            	
              217

            	
              1690150

            	
              268

            	
              1702561

            	
              320

            	
              1734890

            
	
              14

            	
              2050061036944

            	
              65

            	
              91515551

            	
              116

            	
              91741678

            	
              167

            	
              1666393

            	
              218

            	
              1690347

            	
              269

            	
              1702998

            	 	 
	
              15

            	
              2050061039880

            	
              66

            	
              91520411

            	
              117

            	
              91749606

            	
              168

            	
              1667465

            	
              219

            	
              1690427

            	
              270

            	
              1703118

            	 	 
	
              16

            	
              2050061040900

            	
              67

            	
              91535799

            	
              118

            	
              91760751

            	
              169

            	
              1667956

            	
              220

            	
              1691014

            	
              271

            	
              1703437

            	 	 
	
              17

            	
              2050061042630

            	
              68

            	
              91536441

            	
              119

            	
              91760991

            	
              170

            	
              1668908

            	
              221

            	
              1692134

            	
              272

            	
              1703482

            	 	 
	
              18

            	
              2060060930556

            	
              69

            	
              91546671

            	
              120

            	
              91784413

            	
              171

            	
              1669220

            	
              222

            	
              1692199

            	
              273

            	
              1703565

            	 	 
	
              19

            	
              2060061038352

            	
              70

            	
              91548594

            	
              121

            	
              91793067

            	
              172

            	
              1669288

            	
              223

            	
              1692401

            	
              274

            	
              1703892

            	 	 
	
              20

            	
              2060061143977

            	
              71

            	
              91562405

            	
              122

            	
              203246160

            	
              173

            	
              1670561

            	
              224

            	
              1692538

            	
              275

            	
              1705167

            	 	 
	
              21

            	
              2070061035685

            	
              72

            	
              91565218

            	
              123

            	
              203247564

            	
              174

            	
              1671950

            	
              225

            	
              1692725

            	
              276

            	
              1705248

            	 	 
	
              22

            	
              2070061040172

            	
              73

            	
              91581637

            	
              124

            	
              700315526

            	
              175

            	
              1672414

            	
              226

            	
              1693251

            	
              277

            	
              1705312

            	 	 
	
              23

            	
              2070061140851

            	
              74

            	
              91582007

            	
              125

            	
              700326481

            	
              176

            	
              1673150

            	
              227

            	
              1693257

            	
              278

            	
              1706029

            	 	 
	
              24

            	
              2090061033468

            	
              75

            	
              91582627

            	
              126

            	
              700333545

            	
              177

            	
              1674608

            	
              228

            	
              1694750

            	
              279

            	
              1706066

            	 	 
	
              25

            	
              2090061033647

            	
              76

            	
              91585356

            	
              127

            	
              750552671

            	
              178

            	
              1675298

            	
              229

            	
              1695042

            	
              280

            	
              1706622

            	 	 
	
              26

            	
              2200061035367

            	
              77

            	
              91587063

            	
              128

            	
              750562894

            	
              179

            	
              1677662

            	
              230

            	
              1695547

            	
              281

            	
              1706677

            	 	 
	
              27

            	
              2200061099310

            	
              78

            	
              91588913

            	
              129

            	
              1565416

            	
              180

            	
              1678035

            	
              231

            	
              1695616

            	
              282

            	
              1707261

            	 	 
	
              28

            	
              2200061104790

            	
              79

            	
              91588921

            	
              130

            	
              1595219

            	
              181

            	
              1678723

            	
              232

            	
              1695719

            	
              283

            	
              1707781

            	 	 
	
              29

            	
              2220061031140

            	
              80

            	
              91593137

            	
              131

            	
              1595985

            	
              182

            	
              1679157

            	
              233

            	
              1696265

            	
              284

            	
              1707887

            	 	 
	
              30

            	
              2220061033490

            	
              81

            	
              91593723

            	
              132

            	
              1596076

            	
              183

            	
              1679275

            	
              234

            	
              1696382

            	
              285

            	
              1708015

            	 	 
	
              31

            	
              2230060937950

            	
              82

            	
              91595603

            	
              133

            	
              1610236

            	
              184

            	
              1679839

            	
              235

            	
              1696484

            	
              286

            	
              1708566

            	 	 
	
              32

            	
              2230061039530

            	
              83

            	
              91601930

            	
              134

            	
              1623456

            	
              185

            	
              1680102

            	
              236

            	
              1697174

            	
              287

            	
              1708738

            	 	 
	
              33

            	
              2250061034007

            	
              84

            	
              91607002

            	
              135

            	
              1627878

            	
              186

            	
              1680606

            	
              237

            	
              1697179

            	
              288

            	
              1708979

            	 	 
	
              34

            	
              2250061069350

            	
              85

            	
              91610709

            	
              136

            	
              1628351

            	
              187

            	
              1680630

            	
              238

            	
              1697369

            	
              289

            	
              1709231

            	 	 
	
              35

            	
              2260061016150

            	
              86

            	
              91619973

            	
              137

            	
              1631936

            	
              188

            	
              1680777

            	
              239

            	
              1697399

            	
              290

            	
              1709283

            	 	 
	
              36

            	
              2260061017130

            	
              87

            	
              91624064

            	
              138

            	
              1633722

            	
              189

            	
              1681507

            	
              240

            	
              1697407

            	
              291

            	
              1710001

            	 	 
	
              37

            	
              2280061037638

            	
              88

            	
              91624536

            	
              139

            	
              1636428

            	
              190

            	
              1681642

            	
              241

            	
              1697435

            	
              292

            	
              1710442

            	 	 
	
              38

            	
              2280061038156

            	
              89

            	
              91626226

            	
              140

            	
              1636761

            	
              191

            	
              1681692

            	
              242

            	
              1697441

            	
              293

            	
              1710631

            	 	 
	
              39

            	
              2280061045180

            	
              90

            	
              91627349

            	
              141

            	
              1641130

            	
              192

            	
              1681791

            	
              243

            	
              1697518

            	
              294

            	
              1710992

            	 	 
	
              40

            	
              2280061045490

            	
              91

            	
              91628776

            	
              142

            	
              1641520

            	
              193

            	
              1681960

            	
              244

            	
              1697543

            	
              295

            	
              1711458

            	 	 
	
              41

            	
              2280061148300

            	
              92

            	
              91629600

            	
              143

            	
              1642314

            	
              194

            	
              1681961

            	
              245

            	
              1697551

            	
              296

            	
              1711757

            	 	 
	
              42

            	
              2290061012610

            	
              93

            	
              91631465

            	
              144

            	
              1645572

            	
              195

            	
              1681963

            	
              246

            	
              1697554

            	
              297

            	
              1712549

            	 	 
	
              43

            	
              2290061036491

            	
              94

            	
              91635979

            	
              145

            	
              1647954

            	
              196

            	
              1684167

            	
              247

            	
              1697587

            	
              298

            	
              1712570

            	 	 
	
              44

            	
              2290061038187

            	
              95

            	
              91636415

            	
              146

            	
              1649413

            	
              197

            	
              1684434

            	
              248

            	
              1697607

            	
              299

            	
              1712899

            	 	 
	
              45

            	
              2320061036294

            	
              96

            	
              91646810

            	
              147

            	
              1649612

            	
              198

            	
              1684543

            	
              249

            	
              1697953

            	
              300

            	
              1714452

            	 	 
	
              46

            	
              2320061037169

            	
              97

            	
              91646919

            	
              148

            	
              1650013

            	
              199

            	
              1685070

            	
              250

            	
              1698117

            	
              301

            	
              1716904

            	 	 
	
              47

            	
              2350060978130

            	
              98

            	
              91647768

            	
              149

            	
              1651117

            	
              200

            	
              1685118

            	
              251

            	
              1698283

            	
              302

            	
              1716961

            	 	 
	
              48

            	
              2350061082360

            	
              99

            	
              91650259

            	
              150

            	
              1651207

            	
              201

            	
              1685267

            	
              252

            	
              1698437

            	
              303

            	
              1717732

            	 	 
	
              49

            	
              2350061083330

            	
              100

            	
              91660688

            	
              151

            	
              1652192

            	
              202

            	
              1685691

            	
              253

            	
              1698849

            	
              304

            	
              1718128

            	 	 
	
              50

            	
              2350061083350

            	
              101

            	
              91664441

            	
              152

            	
              1652471

            	
              203

            	
              1686090

            	
              254

            	
              1698968

            	
              305

            	
              1718154

            	 	 
	
              51

            	
              2350061084150

            	
              102

            	
              91664490

            	
              153

            	
              1653062

            	
              204

            	
              1686662

            	
              255

            	
              1698981

            	
              307

            	
              1718751