Document:

EX-10.1

 Exhibit 10.1 
  

 
  

PMT ISSUER TRUST – FMSR, 
 as
Issuer 
 and 
 CITIBANK, N.A.,

 as Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary 

and 
 PENNYMAC CORP. 

as Servicer and Administrator 
 and

 CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC 

as Administrative Agent 
  

 
 AMENDMENT NO. 4

 Dated as of March 30, 2021 

to the 
 Base Indenture 

Dated as of December 20, 2017 
  

 
  

 This Amendment No. 4 (this “Amendment”) to the Base Indenture
(as defined below) is entered into as of March 30, 2021, by and among PMT ISSUER TRUST – FMSR, a statutory trust organized under the laws of the State of Delaware (the “Issuer”), CITIBANK, N.A.
(“Citibank”), a national banking association, in its capacity as Indenture Trustee (the “Indenture Trustee”), and as calculation agent, paying agent and securities intermediary, PENNYMAC CORP., a
corporation organized under the laws of the State of Delaware (“PMC”), as servicer and as administrator, and CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC (“CSFB”), a Delaware limited liability
company, as an administrative agent (in such capacity, the “Administrative Agent”), and is consented to by each of CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, as Buyer (in such capacity, “Buyer”) under
the Series 2017-VF1 Master Repurchase Agreement (as defined below) and CITIBANK, N.A, as Buyer (in such capacity, “Buyer”) under the Series 2017-VF1 Master Repurchase Agreement (as defined below). Capitalized terms used but
not otherwise defined herein shall have the meanings assigned to them in the Base Indenture (as defined below). 
 W I T N E S S E T H: 

WHEREAS, the Issuer, Citibank, as Indenture Trustee, as calculation agent (in such capacity, the “Calculation Agent”),
as paying agent (in such capacity, the “Paying Agent”) and as securities intermediary (in such capacity, the “Securities Intermediary”), the Administrator, the Servicer and the Administrative Agent are
parties to that certain Base Indenture, dated as of December 20, 2017 (the “Existing Base Indenture” and, as amended, restated, supplemented, or otherwise modified from time to time, the “Base
Indenture”); 
 WHEREAS, the Issuer, the Indenture Trustee, the Administrator, the Servicer and the Administrative Agent have
agreed, subject to the terms and conditions of this Amendment, that the Existing Base Indenture be amended to reflect certain agreed upon revisions to the terms of the Existing Base Indenture; 

WHEREAS, pursuant to Section 12.1(b) of the Existing Base Indenture, the Issuer, the Indenture Trustee, the Administrator, the
Servicer and the Administrative Agent (in its sole and absolute discretion) without the consent of any of the Noteholders or any other Person, upon delivery of an Issuer Tax Opinion unless such Issuer Tax Opinion is waived by the Series Required
Noteholders of each Outstanding Series, for the purpose of adding any provisions to, or changing in any manner or eliminating any of the provisions of, the Existing Base Indenture or modifying in any manner the rights of the Noteholders of the Notes
under the Existing Base Indenture or any other Transaction Document; provided, however, that (i) the Issuer shall deliver to the Indenture Trustee an Officer’s Certificate to the effect that the Issuer reasonably believes that such
amendment could not have a material Adverse Effect on any Outstanding Notes and is not reasonably expected to have a material Adverse Effect at any time in the future, and (ii) if any Outstanding Notes are then rated by a Note Rating Agency,
(1) each such Note Rating Agency confirms in writing to the Indenture Trustee that such amendment will not cause a Ratings Effect on any Outstanding Notes or (2) if the Administrator and the Administrative Agents determine in their
reasonable judgment that an applicable Note Rating Agency no longer provides such written confirmation described in the foregoing clause (1), (a) the Administrator shall provide notice of such amendment to the related Note Rating Agency and
(b) the Administrative Agent shall have provided their prior written consent to such amendment;  

  
 - 2 - 

 WHEREAS, pursuant to Section 12.3 of the Existing Base Indenture, the Issuer shall also
deliver to the Indenture Trustee an Opinion of Counsel stating that the execution of such amendment to the Existing Base Indenture is authorized and permitted by the Existing Base Indenture and that all conditions precedent thereto have been
satisfied (the “Authorization Opinion”), and pursuant to Section 1.3 of the Existing Base Indenture, the Issuer will furnish to the Indenture Trustee (1) an Officer’s Certificate stating that all conditions
precedent, if any, provided for in the Existing Base Indenture relating to the proposed action have been complied with, and (2) an Opinion of Counsel stating that in the opinion of such counsel all such conditions precedent, if any, have been
complied with; 
 WHEREAS, pursuant to Section 11.1 of the Trust Agreement, prior to the execution of any amendment to any Transaction
Documents to which the Trust is a party, the Owner Trustee is entitled to receive and rely upon an Opinion of Counsel stating that the execution of such amendment is authorized or permitted by the Trust Agreement and that all conditions precedent
have been met; and 
 WHEREAS, pursuant to Section 6.23 of the Amended and Restated Master Repurchase Agreement, dated as of
June 29, 2018, by and among the Administrative Agent, PMC, as Seller and the Buyers (the “Series 2017-VF1 Master Repurchase Agreement”), PMC is required to receive the consent of the Buyers prior to the Seller consenting
to any modification, amendment or termination of the Base Indenture. 
 NOW THEREFORE, in consideration of the premises and mutual
agreements herein and for other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the Issuer, the Indenture Trustee, the Administrator, the Servicer and the Administrative Agent hereby agree as follows:

 SECTION 1. Amendments to the Existing Base Indenture. Effective as of the date hereof, the Existing Base Indenture is hereby
amended to delete the stricken text (indicated textually in the same manner as the following example: stricken text) and to add the double-underlined text (indicated textually in the same manner as the following example:
double-underlined text) as set forth in the pages attached
as Exhibit A to this Amendment. A conformed copy of the Base Indenture adopting such changes is attached as Exhibit B to this Amendment 

SECTION 2. Consent, Authorization and Direction. 

(a) Each of the Issuer, the Buyers, the Indenture Trustee, the Administrator, the Servicer, the Owner Trustee and the Administrative Agent
hereby consents to this Amendment, with such consent being evidenced by the execution and delivery of this Amendment. 
 (b) PMC hereby
authorizes the Owner Trustee to execute and deliver, on behalf of the Issuer, this Amendment, with such authorization being evidenced by the execution and delivery of this Amendment by PMC. PMC hereby certifies that it is the sole Certificateholder
under the Trust Agreement (in such capacity, the “Owner”) with the authority to instruct the Owner Trustee under Section 6.3 of the Trust Agreement and that the above referenced actions are duly authorized pursuant to
the Trust Agreement and are not in violation of the terms of the documents to which the Trust is a party. In addition, the Owner agrees that all action taken by the Owner Trustee in connection with this instruction is covered by the fee and
indemnification provisions set forth in the Trust Agreement and that the Owner Trustee shall be fully indemnified by the undersigned in connection with action taken pursuant to this instruction. 

  
 - 3 - 

 (c) The Indenture Trustee is hereby authorized and directed to execute (i) that certain
Acknowledgment Agreement, dated as of the date hereof, (ii) that certain Series 2021-FT1 Indenture Supplement, dated as of the date hereof, and (iii) any other documents related to the issuance of the Series 2021-FT1 Notes. 

SECTION 3. Conditions to Effectiveness of this Amendment. This Amendment shall be effective as of the date hereof, upon the occurrence
of the following: 
 (a) the execution and delivery of this Amendment by all parties hereto; 

(b) prior notice to each Note Rating Agency that is presently rating any Outstanding Notes and each Note Rating Agency currently rating the
Outstanding Notes confirms in writing to the Indenture Trustee that this Amendment will not cause a Ratings Effect on any Outstanding Notes; 

(c) the delivery of an Authorization Opinion; 

(d) the delivery of an Issuer Tax Opinion; 

(e) the Issuer shall have furnished to the Indenture Trustee (1) an Officer’s Certificate stating that (i) all conditions
precedent, if any, provided for in the Base Indenture relating to the proposed action have been complied with and (ii) the Issuer reasonably believes that this amendment could not have a material Adverse Effect on any Outstanding Notes and is
not reasonably expected to have a material Adverse Effect at any time in the future and (2) an Opinion of Counsel stating that in the opinion of such counsel all such conditions precedent, if any, have been complied with; and 

(f) the delivery of an Opinion of Counsel stating that the execution of such amendment is authorized or permitted by the Trust Agreement and
that all conditions precedent have been met. 
 SECTION 4. No Default; Representations and Warranties. PMC and the Issuer hereby
represents and warrants to the Indenture Trustee and the Administrative Agent that as of the date hereof it is in compliance with all the terms and provisions set forth in the Existing Base Indenture on its part to be observed or performed and
remains bound by the terms thereof, and that no Event of Default has occurred or is continuing on the date hereof, and hereby confirms and reaffirms the representations and warranties contained in Section 9.1 of the Existing Base Indenture.

 SECTION 5. Single Agreement. Except as expressly amended and modified by this Amendment, all of the terms and conditions of the
Existing Base Indenture remain in full force and effect and are hereby reaffirmed. It is the intent of the parties that the Base Indenture attached hereto as Exhibit B shall constitute a true and correct conformed copy of the Base Indenture in
effect as of the date hereof. 

  
 - 4 - 

 SECTION 6. Successors and Assigns. This Amendment shall be binding upon the parties
hereto and their respective successors and assigns. 
 SECTION 7. Severability. Each provision and agreement herein shall be treated
as separate and independent from any other provision or agreement herein and shall be enforceable notwithstanding the unenforceability of any such other provision or agreement. 

SECTION 8. GOVERNING LAW. THIS AMENDMENT AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR RELATED TO OR IN CONNECTION WITH THE
BASE INDENTURE, THE RELATIONSHIP OF THE PARTIES HERETO, AND/OR THE INTERPRETATION AND ENFORCEMENT OF THE RIGHTS AND DUTIES OF THE PARTIES HERETO WILL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK (WITHOUT
REFERENCE TO THE CONFLICT OF LAW PRINCIPLES THEREOF OTHER THAN SECTIONS 5-1401 AND 5-1402 OF THE NEW YORK GENERAL OBLIGATIONS LAW) AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS.

 SECTION 9. Counterparts. This Amendment may be executed simultaneously in any number of counterparts. Each counterpart shall be
deemed to be an original, and all such counterparts shall constitute one and the same instrument. Delivery of an executed counterpart of a signature page by facsimile or other electronic means shall be effective as delivery of a manually executed
counterpart of this Amendment. 
 SECTION 10. Owner Trustee Limitation of Liability. It is expressly understood and agreed by the
parties hereto that (a) this Amendment is executed and delivered by Wilmington Savings Fund Society, FSB (formerly known as Christiana Trust) (“WSFS”), not individually or personally but solely as trustee of the Issuer,
in the exercise of the powers and authority conferred and vested in it, (b) each of the representations, warranties, undertakings and agreements herein made on the part of the Issuer is made and intended not as personal representations,
warranties, undertakings and agreements by WSFS but is made and intended for the purpose of binding only the Issuer, (c) nothing herein contained shall be construed as creating any liability on WSFS, individually or personally, to perform any
covenant either expressed or implied contained herein, all such liability, if any, being expressly waived by the parties hereto and by any Person claiming by, through or under the parties hereto, (d) WSFS has made no investigation as to the
accuracy or completeness of any representations or warranties made by the Issuer in this Amendment and (e) under no circumstances shall WSFS be personally liable for the payment of any indebtedness or expenses of the Issuer or be liable for the
breach or failure of any obligation, representation, warranty or covenant made or undertaken by the Issuer under this Amendment or any other related documents. 

[Signature Pages Follow] 

  
 - 5 - 

 IN WITNESS WHEREOF, the undersigned have caused this Amendment to be duly executed as of the
date first above written. 
  

			
	PMT ISSUER TRUST - FMSR, as Issuer
	
	By: Wilmington Savings Fund Society, FSB, not in its individual capacity but solely as Owner Trustee
		
	By:	 	/s/ Mary Emily Pagano
	
	Name: Mary Emily Pagano
	
	Title: Assistant Vice President

  
 [PMT ISSUER TRUST
– FMSR – Amendment No. 4 to Base Indenture] 

 
			
	CITIBANK, N.A., as Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary and not in its individual capacity
		
	By:	 	/s/ Valerie Delgado
	
	Name: Valerie Delgado
	
	Title: Senior Trust Officer

  
 [PMT ISSUER TRUST
– FMSR – Amendment No. 4 to Base Indenture] 

 
			
	 PENNYMAC CORP.,

as Servicer and as Administrator

		
	By:	 	/s/ Pamela Marsh
	
	Name: Pamela Marsh
	
	Title: Senior Managing Director and Treasurer

  

  
 [PMT ISSUER TRUST
– FMSR – Amendment No. 4 to Base Indenture] 

 
			
	CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC, as Administrative Agent
		
	By:	 	/s/ Kwaw de Graff-Johnson
	
	Name: Kwaw de Graff-Johnson
	
	Title: Vice President

  

  
 [PMT ISSUER TRUST
– FMSR – Amendment No. 4 to Base Indenture] 

 
			
	Consented By:
	
	CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, as a Buyer under the Series 2017-VF1 Master Repurchase Agreement
		
	By:	 	/s/ Kwaw de Graff-Johnson
	
	Name: Kwaw de Graff-Johnson
	
	Title: Authorized Signatory
		
	By:	 	/s/ Dominic Obaditch
	
	Name: Dominic Obaditch
	
	Title: Authorized Signatory

  

  
 [PMT ISSUER TRUST
– FMSR – Amendment No. 4 to Base Indenture] 

 
			
	Consented By:
	
	CITIBANK, N.A., as a Buyer under the Series 2017-VF1 Master Repurchase Agreement
		
	By:	 	/s/ Arunthathi Theivakumaran
	
	Name: Arunthathi Theivakumaran
	
	Title: Vice President

  

  
 [PMT ISSUER TRUST
– FMSR – Amendment No. 4 to Base Indenture] 

 EXHIBIT A 

EXISTING BASE INDENTURE (WITH AMENDMENTS) 

[Attached] 
  

  
 Exh. A 

 CONFORMED COPY 

AS OF AMENDMENT NO. 34 
 BASE
INDENTURE 
 PMT ISSUER TRUST – FMSR 

as Issuer 
 and 

CITIBANK, N.A. 
 as
Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary 
 and 

PENNYMAC CORP. 
 as
Servicer and Administrator 
 and 

CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC 

as Administrative Agent 

Dated as of December 20, 2017 

PMT ISSUER TRUST—FMSR 

MSR COLLATERALIZED NOTES, ISSUABLE IN SERIES 

 TABLE OF CONTENTS 

 

							
	 	  	 	  	Page	 
	 Article I
	  	Definitions and Other Provisions of General Application	  	 	5	 
			
	 Section 1.1.
	  	Definitions	  	 	5	 
	 Section 1.2.
	  	Interpretation	  	 	5	 
	 Section 1.3.
	  	Compliance Certificates and Opinions	  	 	6	 
	 Section 1.4.
	  	Form of Documents Delivered to Indenture Trustee	  	 	7	 
	 Section 1.5.
	  	Acts of Noteholders	  	 	7	 
	 Section 1.6.
	  	Notices, etc., to Indenture Trustee, Issuer, Administrator, the Administrative Agent and Note Rating Agencies	  	 	9	 
	 Section 1.7.
	  	Notices to Noteholders; Waiver	  	 	9	 
	 Section 1.8.
	  	Administrative Agent	  	 	11	 
	 Section 1.9.
	  	Effect of Headings and Table of Contents	  	 	12	 
	 Section 1.10.
	  	Successors and Assigns	  	 	12	 
	 Section 1.11.
	  	Severability of Provisions	  	 	12	 
	 Section 1.12.
	  	Benefits of Indenture	  	 	12	 
	 Section 1.13.
	  	Governing Law	  	 	13	 
	 Section 1.14.
	  	Counterparts	  	 	13	 
	 Section 1.15.
	  	Submission to Jurisdiction; Waivers	  	 	13	 
			
	 Article II
	  	The Trust Estate	  	 	14	 
			
	 Section 2.1.
	  	Contents of Trust Estate	  	 	14	 
	 Section 2.2.
	  	Asset Files	  	 	16	 
	 Section 2.3.
	  	Duties of Custodian with Respect to the Asset Files	  	 	18	 
	 Section 2.4.
	  	Application of Trust Money	  	 	19	 
			
	 Article III
	  	Administration of Participation Certificates; Reporting to Investors	  	 	19	 
			
	 Section 3.1.
	  	Duties of the Calculation Agent	  	 	19	 
	 Section 3.2.
	  	Reports by Administrator and Indenture Trustee	  	 	22	 
	 Section 3.3.
	  	Annual Statement as to Compliance; Notice of Default; Reports	  	 	24	 
	 Section 3.4.
	  	Access to Certain Documentation and Information	  	 	26	 
	 Section 3.5.
	  	Indenture Trustee to Make Reports Available	  	 	30	 
			
	 Article IV
	  	The Trust Accounts; Payments	  	 	31	 
			
	 Section 4.1.
	  	Trust Accounts	  	 	31	 
	 Section 4.2.
	  	Collections and Disbursements of Portfolio Collections by Servicer	  	 	32	 
	 Section 4.3.
	  	Fundings	  	 	33	 
	 Section 4.4.
	  	Interim Payment Dates	  	 	35	 
	 Section 4.5.
	  	Payment Dates	  	 	36	 
	 Section 4.6.
	  	Series Reserve Account; Expense Reserve Account	  	 	41	 
	 Section 4.7.
	  	Collection and Funding Account	  	 	44	 

  
 i 

							
	 Section 4.8.
	 	Note Payment Account	  	 	44	 
	 Section 4.9.
	 	Securities Accounts	  	 	45	 
	 Section 4.10.
	 	Notice of Adverse Claims	  	 	47	 
	 Section 4.11.
	 	No Gross Up	  	 	47	 
	 Section 4.12.
	 	Advance Rate Trigger Event Trigger Period, Early Amortization Period and Full Amortization Period	  	 	47	 
			
	 Article V
	 	Note Forms	  	 	48	 
			
	 Section 5.1.
	 	Forms Generally	  	 	48	 
	 Section 5.2.
	 	Forms of Notes	  	 	49	 
	 Section 5.3.
	 	Reserved	  	 	50	 
	 Section 5.4.
	 	Book-Entry Notes	  	 	50	 
	 Section 5.5.
	 	Beneficial Ownership of Global Notes	  	 	53	 
	 Section 5.6.
	 	Notices to Depository	  	 	53	 
			
	 Article VI
	 	The Notes	  	 	53	 
			
	 Section 6.1.
	 	General Provisions; Notes Issuable in Series; Terms of a Series or Class Specified in an Indenture Supplement	  	 	53	 
	 Section 6.2.
	 	Denominations	  	 	55	 
	 Section 6.3.
	 	Execution, Authentication and Delivery and Dating	  	 	55	 
	 Section 6.4.
	 	Temporary Notes	  	 	56	 
	 Section 6.5.
	 	Registration, Transfer and Exchange	  	 	63	 
	 Section 6.6.
	 	Mutilated, Destroyed, Lost and Stolen Notes	  	 	63	 
	 Section 6.7.
	 	Payment of Interest; Interest Rights Preserved; Withholding Taxes	  	 	61	 
	 Section 6.8.
	 	Persons Deemed Owners	  	 	64	 
	 Section 6.9.
	 	Cancellation	  	 	64	 
	 Section 6.10.
	 	New Issuances of Notes	  	 	64	 
			
	 Article VII
	 	Satisfaction and Discharge; Cancellation of Notes Held by the Issuer or PMC	  	 	67	 
			
	 Section 7.1.
	 	Satisfaction and Discharge of Indenture	  	 	67	 
	 Section 7.2.
	 	Application of Trust Money	  	 	68	 
	 Section 7.3.
	 	Cancellation of Notes Held by the Issuer or PMC	  	 	68	 
	 Section 7.4.
	 	Termination of Servicer’s Servicing Rights; Fannie Mae’s Rights	  	 	68	 
			
	 Article VIII
	 	Events of Default and Remedies	  	 	70	 
			
	 Section 8.1.
	 	Events of Default	  	 	70	 
	 Section 8.2.
	 	Acceleration of Maturity; Rescission and Annulment	  	 	73	 
	 Section 8.3.
	 	Collection of Indebtedness and Suits for Enforcement by Indenture Trustee	  	 	74	 
	 Section 8.4.
	 	Indenture Trustee May File Proofs of Claim	  	 	75	 
	 Section 8.5.
	 	Indenture Trustee May Enforce Claims Without Possession of Notes	  	 	75	 
	 Section 8.6.
	 	Application of Money Collected	  	 	76	 
	 Section 8.7.
	 	Sale of Collateral Requires Consent of Noteholders	  	 	76	 

  
 ii 

							
	 Section 8.8.
	 	Limitation on Suits	  	 	76	 
	 Section 8.9.
	 	Limited Recourse	  	 	77	 
	 Section 8.10.
	 	Restoration of Rights and Remedies	  	 	77	 
	 Section 8.11.
	 	Rights and Remedies Cumulative	  	 	78	 
	 Section 8.12.
	 	Delay or Omission Not Waiver	  	 	78	 
	 Section 8.13.
	 	Control by Noteholders	  	 	78	 
	 Section 8.14.
	 	Waiver of Past Defaults	  	 	79	 
	 Section 8.15.
	 	Sale of Trust Estate	  	 	79	 
	 Section 8.16.
	 	Undertaking for Costs	  	 	80	 
	 Section 8.17.
	 	Waiver of Stay or Extension Laws	  	 	80	 
	 Section 8.18.
	 	Notice of Waivers	  	 	81	 
			
	 Article IX
	 	The Issuer	  	 	81	 
			
	 Section 9.1.
	 	Representations and Warranties of Issuer	  	 	81	 
	 Section 9.2.
	 	Liability of Issuer; Indemnities	  	 	84	 
	 Section 9.3.
	 	Merger or Consolidation, or Assumption of the Obligations, of the Issuer	  	 	86	 
	 Section 9.4.
	 	Issuer May Not Own Notes	  	 	87	 
	 Section 9.5.
	 	Covenants of Issuer	  	 	87	 
			
	 Article X
	 	The Administrator and Servicer	  	 	92	 
			
	 Section 10.1.
	 	Representations and Warranties of PMC, as Administrator and as Servicer	  	 	92	 
	 Section 10.2.
	 	Covenants of PMC, as Administrator and as Servicer	  	 	95	 
	 Section 10.3.
	 	Negative Covenants of PMC	  	 	100	 
	 Section 10.4.
	 	Liability of PMC, as Administrator and as Servicer; Indemnities	  	 	102	 
	 Section 10.5.
	 	Merger or Consolidation, or Assumption of the Obligations, of PMC	  	 	103	 
			
	 Article XI
	 	The Indenture Trustee	  	 	104	 
			
	 Section 11.1.
	 	Certain Duties and Responsibilities	  	 	104	 
	 Section 11.2.
	 	Notice of Defaults	  	 	106	 
	 Section 11.3.
	 	Certain Rights of Indenture Trustee	  	 	106	 
	 Section 11.4.
	 	Not Responsible for Recitals or Issuance of Notes	  	 	110	 
	 Section 11.5.
	 	Indenture Trustee’s Appointment as Attorney-In-Fact	  	 	110	 
	 Section 11.6.
	 	Money Held in Trust	  	 	112	 
	 Section 11.7.
	 	Compensation and Reimbursement, Limit on Compensation, Reimbursement and Indemnity	  	 	112	 
	 Section 11.8.
	 	Corporate Indenture Trustee Required; Eligibility	  	 	113	 
	 Section 11.9.
	 	Resignation and Removal; Appointment of Successor	  	 	114	 
	 Section 11.10.
	 	Acceptance of Appointment by Successor	  	 	116	 
	 Section 11.11.
	 	Merger, Conversion, Consolidation or Succession to Business	  	 	116	 
	 Section 11.12.
	 	Appointment of Authenticating Agent	  	 	116	 
	 Section 11.13.
	 	Direction to Indenture Trustee under the PC Repo Guaranty and the PMH Repo Guaranty	  	 	117	 

  
 iii 

							
	 Section 11.14.
	 	Representations and Covenants of the Indenture Trustee	  	 	118	 
	 Section 11.15.
	 	Indenture Trustee’s Application for Instructions from the Issuer	  	 	118	 
			
	 Article XII
	 	Amendments and Indenture Supplements	  	 	119	 
			
	 Section 12.1.
	 	Supplemental Indentures and Amendments Without Consent of Noteholders	  	 	119	 
	 Section 12.2.
	 	Supplemental Indentures and Amendments with Consent of Noteholders	  	 	120	 
	 Section 12.3.
	 	Execution of Amendments	  	 	122	 
	 Section 12.4.
	 	Effect of Amendments	  	 	123	 
	 Section 12.5.
	 	Reference in Notes to Indenture Supplements	  	 	123	 
	 Section 12.6.
	 	Amendments to Appendix A	  	 	123	 
			
	 Article XIII
	 	Early Redemption of Notes	  	 	123	 
			
	 Section 13.1.
	 	Optional Redemption	  	 	123	 
	 Section 13.2.
	 	Notice	  	 	125	 
			
	 Article XIV
	 	Miscellaneous	  	 	125	 
			
	 Section 14.1.
	 	No Petition	  	 	125	 
	 Section 14.2.
	 	No Recourse	  	 	125	 
	 Section 14.3.
	 	Tax Treatment	  	 	126	 
	 Section 14.4.
	 	Alternate Payment Provisions	  	 	126	 
	 Section 14.5.
	 	Termination of Obligations	  	 	126	 
	 Section 14.6.
	 	Final Payment	  	 	127	 
	 Section 14.7.
	 	Base Servicing Fee	  	 	127	 
	 Section 14.8.
	 	Owner Trustee Limitation of Liability	  	 	128	 
	 Section 14.9.
	 	Communications with Rating Agencies	  	 	128	 
	 Section 14.10.
	 	Authorized Representatives	  	 	129	 
	 Section 14.11.
	 	Performance of the Issuer’s Duties by the Owner Trustee and the Administrator	  	 	129	 
	 Section 14.12.
	 	Noteholder or Note Owner Communications with the Indenture Trustee	  	 	129	 

  
 iv 

 SCHEDULES AND EXHIBITS 
  

			
	 Schedule 1
	  	Participation Certificates Schedule Schedule 2 Participation Agreements Schedule Schedule 3 Eligible Securities Schedule
		
	 Schedule 4
	  	Required Information Regarding Portfolio Mortgage Loans Schedule 5 Wire Instructions
		
	 Exhibit A-1
	  	Form of Global Rule 144A Note Exhibit A-2 Form of Definitive Rule 144A Note Exhibit A-3 Form of Global Regulation S Note Exhibit A-4 Form of Definitive Regulation S Note
		
	 Exhibit B-1
	  	Form of Transferee Certificate for Transfers of Notes pursuant to Rule 144A Exhibit B-2 Form of Transferee Certificate for Transfer of Notes pursuant to Regulation S
		
	 Exhibit C-1
	  	Authorized Representatives of the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary
		
	 Exhibit C-2
	  	Authorized Representatives of PMC, as Servicer and as Administrator Exhibit C-3 Authorized Representatives of the Administrative Agent
		
	 Exhibit C-4
	  	Authorized Representatives of the Issuer
		
	 Exhibit D
	  	Form of Certificate of Authentication of Indenture Trustee and Authenticating Agent
		
	 Exhibit E
	  	Form of Indenture Supplement Exhibit F Form of Risk Retention Certification Appendix A Defined Terms

  
 v 

 PREAMBLE 

This Base Indenture (together with the exhibits and schedules hereto, as amended, restated, supplemented or otherwise modified from
time to time, the “Base Indenture,” and collectively with the Indenture Supplements (as defined herein), the “Indenture”), is made and entered into as of December 20, 2017, by and among PMT ISSUER
TRUST—FMSR, a statutory trust organized under the laws of the State of Delaware (the “Issuer”), CITIBANK, N.A. (“Citibank”), a national banking association, in its capacity as Indenture Trustee
(the “Indenture Trustee”), and as Calculation Agent, Paying Agent and Securities Intermediary (in each case, as defined herein), PENNYMAC CORP., a corporation organized under the laws of the State of Delaware
(“PMC”), as Servicer (as defined herein) and as Administrator (as defined herein), and CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC (“CSFB”), a Delaware limited liability company, as an
Administrative Agent (as defined herein). Capitalized terms used herein have the meanings specified in Section 1.1. 

PRELIMINARY STATEMENT 

WHEREAS, pursuant to the Retained Excess Spread Participation Agreement, PMC has created the Retained MSR Excess Spread PC, which represents a
Participation Interest in Retained MSR Excess Spread; 
 WHEREAS, pursuant to the Excess Spread Participation Agreement, PMC has created the
Sold MSR Excess Spread PC, which represents a Participation Interest in Sold MSR Excess Spread related to all Sold MSR Portfolios, and sold such Sold MSR Excess Spread PC to PMH, and PMH, as Repo Seller, has sold and assigned such Sold MSR Excess
Spread PC back to PMC pursuant to the PMH Repurchase Agreement; 
 WHEREAS, pursuant to the PC Repurchase Agreement, PMC, as Repo Seller,
has sold to the Issuer, as Repo Buyer, all of its right, title and interest in, to and under the Retained MSR Excess Spread PC and the Sold MSR Excess Spread PC; 

WHEREAS, the Guarantor, has issued the PMH Repo Guaranty in favor of PMC with respect to the obligations of PMH as Repo Seller under the PMH
Repurchase Agreement, and PMC will assign its rights, but not its obligations, under the PMH Repurchase Agreement and the PMH Repo Guaranty to the Issuer pursuant to the PC Repurchase Agreement; 

WHEREAS, the Guarantor has issued the PC Repo Guaranty in favor of the Issuer with respect to the obligations of PMC as Repo Seller under the
PC Repurchase Agreement; 
 WHEREAS, on the Closing Date, the parties are entering into this Base Indenture, providing for, among other
things, the Issuer’s authority to issue different Series of Notes from time to time, on the terms and subject to the conditions set forth herein; 

WHEREAS, the Issuer has duly authorized the execution and delivery of this Base Indenture to provide for the issuance on the date hereof of
its Variable Funding Note and potential future issuance of Term Notes and additional Variable Funding Notes, in each case, to be issued in one (1) or more Series and/or Classes, as is or will be specified in the related Indenture Supplement for
such Series; and 

  
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 WHEREAS, all things necessary to make this Base Indenture a valid agreement of the Issuer,
in accordance with its terms, have been done. 
 NOW, THEREFORE, in consideration of the mutual agreements set forth herein, and other good
and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows. 

GRANTING CLAUSE 

Subject to the interests of Fannie Mae as set forth below and in the Acknowledgment Agreement, the Issuer hereby Grants to the
Indenture Trustee for the benefit and security of the Noteholders and the Indenture Trustee, in its individual capacity (each, a “Secured Party” and collectively, the “Secured Parties”), a security
interest in all its right, title and interest in and to the following, whether now owned or hereafter acquired and wheresoever located (collectively, the “Collateral”), and all monies, “securities,”
“instruments,” “accounts,” “general intangibles,” “payment intangibles,” “goods,” “letter of credit rights,” “chattel paper,” “financial assets,” “investment
property” (the terms in quotations are defined in the UCC) and other property consisting of, arising from or relating to any of the following: 

(i) all right, title and interest of the Issuer in, to and under (A) the Retained MSR Excess Spread PC, (B) the Sold
MSR Excess Spread PC and (C) all monies due or to become due thereon, and all amounts received or receivable with respect thereto, and all proceeds thereof (including “proceeds” as defined in the UCC in effect in all relevant
jurisdictions, including all amounts collected by the Servicer or any Subservicer on its behalf for servicing compensation (not including Advance Reimbursement Amounts or Ancillary Income) under any Participation Certificate); 

(ii) all right, title and interest of the Issuer in, to and under any Eligible Securities and all monies due or to become due
thereon, and all amounts received or receivable with respect thereto, and all proceeds thereof (including “proceeds” as defined in the Uniform Commercial Code in effect in all relevant jurisdictions); 

(iii) all rights and claims of the Issuer as Repo Buyer under the PC Repurchase Agreement; 

(iv) all rights and claims of the Issuer as buyer under the Dedicated Account Pledge Agreement; 

(v) all rights and claims of the Issuer pursuant to the PC Repo Guaranty; 

(vi) all rights and claims of the Issuer, as assignee of PMC, pursuant to the PMH Repurchase Agreement and the PMH Repo
Guaranty; 

  
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 (vii) all rights and claims of the Issuer to the additional collateral
pledged to the Issuer to support PMC’s obligations under the PC Repurchase Agreement, including any and all rights (A) as assignee of PMC of the PMH Repurchase Agreement and the PMH Repo Guaranty, (B) as assignee of PMC to rights to
payment on the Participation Certificates, and under all related documents, instruments and agreements pursuant to which PMC acquired, or acquired an interest in, any of the Participation Certificates and (C) as pledgee of the MSRs; 

(viii) all rights and claims of the Issuer under the Acknowledgment Agreement; 

(ix) the Trust Accounts and all amounts and property on deposit or credited to the Trust Accounts (excluding any investment
earnings thereon) from time to time (whether or not constituting or derived from payments, collections or recoveries received, made or realized in respect of the Participation Certificates); 

(x) any rights in the Dedicated Account and to the amounts on deposit therein; 

(xi) all other monies, securities, reserves and other property now or at any time in the possession of the Indenture Trustee or
its bailee, agent or custodian and relating to any of the foregoing; and 
 (xii) all present and future claims, demands,
causes and choses in action in respect of any and all of the foregoing and all payments on or under, and all proceeds of every kind and nature whatsoever in respect of, any and all of the foregoing and all payments on or under, and all proceeds of
every kind and nature whatsoever in conversion thereof, voluntary or involuntary, into cash or other liquid property, all cash proceeds, accounts, accounts receivable, notes, drafts, acceptances, checks, deposit accounts, rights to payment of any
and every kind, and other forms of obligations and receivables, instruments and other property which at any time constitute all or part of or are included in the proceeds of any of the foregoing. 

The Security Interest in the Trust Estate is Granted to secure the Notes issued pursuant to this Base Indenture (and the obligations under
this Base Indenture and any Indenture Supplement) equally and ratably without prejudice, priority or distinction between any Note and any other Note by reason of difference in time of issuance or otherwise, except as otherwise expressly provided in
this Base Indenture or in any Indenture Supplement, and to secure (1) the payment of all amounts due on such Notes, (2) the payment of all other sums payable by the Issuer under this Base Indenture or any Indenture Supplement and
(3) compliance by the Issuer with the provisions of this Base Indenture or any Indenture Supplement. This Base Indenture, as it may be supplemented, including by each Indenture Supplement, is a security agreement within the meaning of the UCC.

 The Indenture Trustee acknowledges the Grant of such Security Interest, and agrees to perform the duties herein in accordance with the
terms hereof. 

  
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 Notwithstanding anything to the contrary in this Base Indenture or any of the other
Transaction Documents, the security interest of the Indenture Trustee for the benefit of the Noteholders created hereby with respect to the Participation Certificates and the MSRs is subject to the following provisions, which provisions shall be
included in each financing statement filed in respect hereof: 
 The Security Interest described in this financing statement
is subordinate to all rights of Fannie Mae under (i) the terms of an Acknowledgment Agreement, with respect to the Security Interest (as defined therein) among Fannie Mae, PennyMac Corp. (the “Servicer”), PennyMac
Holdings, LLC, PennyMac Mortgage Investment Trust and Citibank, N.A., solely as Indenture Trustee under the Base Indenture, dated December 20, 2017, and not in its individual capacity, (ii) the terms of a Subordination of Interest
Agreement, with respect to the Security Interest (as defined therein), among Fannie Mae, the Servicer and PennyMac Holdings, LLC, and (iii) the Mortgage Selling and Servicing Contract, the Fannie Mae Selling Guide, the Fannie Mae Servicing
Guide and all supplemental servicing instructions or directives provided by Fannie Mae, all applicable master agreements, recourse agreements, repurchase agreements, indemnification agreements, loss-sharing agreements, and any other agreements
between Fannie Mae and the Servicer, and all as amended, restated or supplemented from time to time (collectively, the “Fannie Mae Lender Contract”), which rights include the right of Fannie Mae to terminate the Fannie Mae
Lender Contract with or without cause and the right to sell, or have transferred, the Servicing Rights. 
 The Issuer hereby authorizes the
Administrator, on behalf of the Issuer and the Indenture Trustee, and its assignees, successors and designees to file one or more UCC financing statements, financing statement amendments and continuation statements to perfect the security interest
granted above. In addition, the Issuer hereby consents to the filing of a financing statement describing the Collateral covered thereby as “all assets of the Debtor, now owned or hereafter acquired,” or such similar language as the
Administrator, on behalf of the Indenture Trustee, and its assignees, successors and designees may deem appropriate. 
 Subject to the
interests and rights of Fannie Mae as set forth in this Base Indenture and in the Acknowledgment Agreement and the Fannie Mae Requirements, the parties hereto intend that the Security Interest Granted under this Base Indenture shall give the
Indenture Trustee on behalf of the Secured Parties a first priority perfected security interest in, to and under the Collateral, and all other property described in this Base Indenture as a part of the Trust Estate and all proceeds of any of the
foregoing in order to secure the obligations of the Issuer to the Indenture Trustee and the Noteholders under the Notes, this Base Indenture, the related Indenture Supplement, and all of the other Transaction Documents. The Indenture Trustee on
behalf of the Secured Parties shall have all the rights, powers and privileges of a secured party under the UCC. The Issuer agrees to execute and file all filings (including filings under the UCC) and take all other actions reasonably necessary in
any jurisdiction to provide third parties with notice of the Security Interest Granted pursuant to this Base Indenture and to perfect such Security Interest under the UCC. 

AGREEMENTS OF THE PARTIES 

To set forth or to provide for the establishment of the terms and conditions upon which the Notes are to be authenticated, issued and
delivered, and in consideration of the premises and the purchase of Notes by the Noteholders thereof, it is mutually covenanted and agreed as set forth in this Base Indenture, for the equal and proportionate benefit of all Noteholders of the Notes
or of a Series or Class thereof, as the case may be. 

  
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 LIMITED RECOURSE 

The obligation of the Issuer to make payments of principal, interest and other amounts on the Notes is limited in recourse as set forth in
Section 8.9. 
 Article I 

Definitions and Other Provisions of General Application 

Section 1.1. Definitions. 
 For all
purposes of this Indenture, except as otherwise expressly provided herein or unless the context otherwise requires, capitalized terms not otherwise defined herein shall have the meanings assigned to such terms in the Definitions attached hereto as
Appendix A which is incorporated by reference herein. All other capitalized terms used herein shall have the meanings specified herein. 

Section 1.2. Interpretation. 
 For
all purposes of this Base Indenture, except as otherwise expressly provided or unless the context otherwise requires: 
 (a) reference to and
the definition of any document (including this Base Indenture) shall be deemed a reference to such document as it may be amended, restated, supplemented or otherwise modified from time to time; 

(b) all references to an “Article,” “Section,” “Schedule” or “Exhibit” are to an Article or Section
hereof or to a Schedule or an Exhibit attached hereto; 
 (c) defined terms in the singular shall include the plural and vice versa and the
masculine, feminine or neuter gender shall include all genders; 
 (d) the words “hereof,” “herein” and
“hereunder” and words of similar import when used in this Base Indenture shall refer to this Base Indenture as a whole and not to any particular provision of this Base Indenture; 

(e) unless otherwise specified herein, the term “or” has the inclusive meaning represented by the term “and/or” and the
term “including” is not limiting; 
 (f) in the computation of periods of time from a specified date to a later specified date,
unless otherwise specified herein, the words “commencing on” mean “commencing on and including,” the word “from” means “from and including” and the words “to” and “until” each means
“to but excluding”; 

  
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 (g) periods of days referred to in this Base Indenture shall be counted in days unless
Business Days are expressly prescribed and references in this Base Indenture to months and years shall be to months and years unless otherwise specified; 

(h) accounting terms not otherwise defined herein and accounting terms partly defined herein to the extent not defined, shall have the
respective meanings given to them under GAAP; 
 (i) “including” and words of similar import will be deemed to be followed by
“without limitation”; 

(j)
references to any Transaction Document (including this Base Indenture) and any other agreement shall be deemed a reference to such Transaction Document or agreement as it may be amended, restated, supplemented or otherwise modified from time to
time; 

(k)
(j) references to any statute, law, rule or regulation shall be deemed a reference to such
statute, law, rule or regulation as it may be amended or modified from time to time; 

(l) all
references to payments or deliveries of “cash” shall be understood to mean “immediately available funds” or “available funds held in a deposit account,” as the context may require; and 

(m)
references to a Person shall be deemed a reference to its permitted successors and assigns. 

Section 1.3. Compliance Certificates and Opinions. 

Upon any application or request by the Issuer to the Indenture Trustee to take any action under any provision of this Base Indenture, the
Issuer will furnish to the Indenture Trustee (1) an Officer’s Certificate stating that all conditions precedent, if any, provided for in this Base Indenture relating to the proposed action have been complied with and (2) except as
provided below, an Opinion of Counsel stating that in the opinion of such counsel all such conditions precedent, if any, have been complied with, except that in the case of any such application or request as to which the furnishing of such documents
is specifically required by any provision of this Base Indenture relating to such particular application or request, no additional certificate or opinion need be furnished. No such certificate or opinion shall be required in any instance where 100%
of the Noteholders have consented to the related amendment, modification or action and all of the Noteholders have directed the Indenture Trustee in writing to execute such amendment or supplement, or with respect to any other modification or
action, directed the Indenture Trustee in writing to permit such modification or action without receiving such certificate or opinion. 

Every certificate with respect to compliance with a condition or covenant provided for in this Base Indenture will include: 

  
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 (a) a statement to the effect that each individual signing such certificate has read such
covenant or condition and the definitions herein relating thereto; 
 (b) a brief statement as to the nature and scope of the examination or
investigation upon which the statements or opinions contained in such certificate are based; 
 (c) a statement to the effect that such
individual has made such examination or investigation as is necessary to express an informed opinion as to whether or not such covenant or condition has been complied with; and 

(d) a statement as to whether, in the opinion of each such individual, such condition or covenant has been complied with. 

Section 1.4. Form of Documents Delivered to Indenture Trustee. 

In any case where several matters are required to be certified by, or covered by an opinion of, one or more specified Persons, one such Person
may certify or give an opinion with respect to some matters and one or more other such Persons as to the other matters, and any such Person may certify or give an opinion as to such matters in one or several documents. 

Any certificate or opinion of the Issuer may be based, insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless the Issuer knows, or in the exercise of reasonable care should know, that the certificate or opinion or representations are erroneous. Any such certificate or opinion of, or representation by, counsel may be
based, insofar as it relates to factual matters, upon a certificate or opinion of, or representations by, the Issuer stating that the information with respect to such factual matters is in the possession of the Issuer, unless such counsel knows, or
in the exercise of reasonable care should know, that the certificate or opinion or representations are erroneous. 
 Where any Person is
required to make, give or execute two or more applications, requests, consents, certificates, statements, opinions or other instruments under this Base Indenture, they may, but need not, be consolidated and form one instrument. 

Section 1.5. Acts of Noteholders. 

(a) Any request, demand, authorization, direction, notice, consent, waiver or other action (each, an “Action”) provided
by this Base Indenture to be given or taken by Noteholders of any Class may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such Noteholders in person or by an agent duly appointed in writing. Except
as herein otherwise expressly provided, such Action will become effective when such instrument or instruments are delivered to the Indenture Trustee, and, where it is hereby expressly required, to the Issuer. Such instrument or instruments and any
such record (and the Action embodied therein and evidenced thereby) are herein sometimes referred to as the “Act” of the Noteholders signing such instrument or instruments and so voting at any meeting. Proof of execution of
any such instrument or of a writing appointing any such agent, or the holding by any Person of a Note, will be sufficient for any purpose of this Base Indenture and (subject to Section 11.1) conclusive in favor of the Indenture Trustee
and the Issuer, if made in the manner provided in this Section 1.5. 

  
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 (b) The fact and date of the execution by any Person of any such instrument or writing may
be proved by the affidavit of a witness to such execution or by the certificate of any notary public or other officer authorized by law to take acknowledgments of deeds, certifying that the individual signing such instrument or writing acknowledged
to him the execution thereof. Where such execution is by an officer of a corporation or a member of a partnership, on behalf of such corporation or partnership, such certificate or affidavit will also constitute sufficient proof of his authority.
The fact and date of the execution of any such instrument or writing, or the authority of the person executing the same, may also be proved in any other manner which the Indenture Trustee deems sufficient. 

(c) The ownership of Notes will be proved by the Note Register. 

(d) Any Action by a Noteholder will bind all subsequent Noteholders of such Noteholder’s Note, in respect of anything done or suffered to
be done by the Indenture Trustee or the Issuer in reliance thereon whether or not notation of such Action is made upon such Note. 
 (e)
Without limiting the foregoing, a Noteholder entitled hereunder to take any Action hereunder with regard to any particular Note may do so with regard to all or any part of the principal amount of such Note or by one or more duly appointed agents
each of which may do so pursuant to such appointment with regard to all or any part of such principal amount. Any notice given or Action taken by a Noteholder or its agents with regard to different parts of such principal amount pursuant to this
paragraph shall have the same effect as if given or taken by separate Noteholders of each such different part. 
 (f) Without limiting the
generality of the foregoing, unless otherwise specified pursuant to one or more Indenture Supplements, a Noteholder, including a Depository that is the Noteholder of a Global Note representing Book-Entry Notes, may make, give or take, by a proxy or
proxies duly appointed in writing, any Action provided in this Base Indenture to be made, given or taken by a Noteholder, and a Depository that is the Noteholder of a Global Note may provide its proxy or proxies to the beneficial owners of interests
in or security entitlements to any such Global Note through such Depository’s standing instructions and customary practices. 
 (g) The
Issuer may fix a record date for the purpose of determining the Persons who are beneficial owners of interests in or security entitlements to any Global Note held by a Depository entitled under the procedures of such Depository to make, give or
take, by a proxy or proxies duly appointed in writing, any Action provided in this Base Indenture to be made, given or taken by Noteholders. If such a record date is fixed, the Noteholders on such record date or their duly appointed proxy or
proxies, and only such Persons, shall be entitled to make, give or take such Action, whether or not such Noteholders remain Noteholders after such record date. No such Action shall be valid or effective if made, given or taken more than ninety
(90) days after such record date. 

  
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 Section 1.6. Notices, etc., to Indenture Trustee, Issuer, Administrator, the Administrative Agent
and Note Rating Agencies. 
 (a) Any Action of Noteholders or other document provided or permitted by this Base Indenture to be made
upon, given or furnished to, or filed with, the Indenture Trustee by any Noteholder or by the Issuer will be sufficient for every purpose hereunder if in writing (which shall include electronic transmission) and personally delivered, express
couriered, electronically transmitted or mailed by registered or certified mail to the Indenture Trustee (or the bank serving as Indenture Trustee in any of its capacities) at its Corporate Trust Office, or the Issuer or the Administrator by the
Indenture Trustee or by any Noteholder will be sufficient for every purpose hereunder (except with respect to notices to the Indenture Trustee of an Event of Default as provided in Section 8.1) if in writing (which shall include
electronic transmission) and personally delivered, express couriered, electronically transmitted or mailed by registered or certified mail, addressed to it at: (i) in the case of the Indenture Trustee, in any of its capacities: Citibank, N.A.,
Corporate and Investment Banking, 388 Greenwich Street, 14th Floor, New York, NY 10013, Attention: PMT ISSUER TRUST – FMSR Collateralized Notes, email: valerie.delgado@citi.com; (ii) in the case of Servicer and Administrator: 3043 Townsgate
Road, Suite 300, Westlake Village, CA 91361, Attention: PMT ISSUER TRUST – FMSR Collateralized Notes, email: pamela.marsh@pnmac.com; josh.smith@pnmac.com;
contractmortgage.finance@pnmac.com (with a copy to
Chris Gavin, Esq., Cadwalader, Wickersham & Taft LLP, 200 Liberty Street, New York, NY 10281, email: chris.gavin@cwt.com); (iii) in the case of the Issuer: to the Administrator (with copy to: Wilmington Savings Fund Society, FSB, as
Owner Trustee, 500 Delaware Avenue, 11th Floor, Wilmington, Delaware 19801, Attention: Corporate Trust Administration, email:
jeverhart@christianatrustSVernon@wsfsbank
.com); (iv) in the case of CSFB, as Administrative Agent: Eleven Madison Avenue, New York, NY 10010, email: dominic.obaditch@credit-suisse.com; in the case of the Disposition Manager,
Pentalpha Surveillance LLC, 375 N. French Rd., Suite 100, Amherst, New York, 14228, Attention: PMT ISSUER TRUST—FMSR, email: notices@pentalphasurveillance.com; or (vi) in any case at any other address previously furnished in writing by any
such party to the other parties hereto. 
 (b) Where this Base Indenture provides for notice to or consent from any Note Rating
Agency, such notice or consent will only be required to the extent that any Outstanding Class is then currently being rated at the request of PMC, and as specified in the related Indenture Supplement, and if no Outstanding Class is being so rated,
including in the event ratings unsolicited by PMC are being issued, such notice or consent provisions shall be of no force or effect. In the event that an Indenture Supplement provides that one or more Classes obtain a rating, any notice shall be
sufficient for every purpose hereunder (except with respect to notices to the Indenture Trustee of an Event of Default as provided in Section 3.3 or Section 8.1) if in writing (which shall include electronic transmission) and
personally delivered, express couriered, electronically transmitted or mailed by registered or certified mail, addressed to it at the address set forth in the related Indenture Supplement. Failure to give such notice will not affect any other rights
or obligations created hereunder and will not under any circumstance constitute an Adverse Effect. 
 Section 1.7. Notices to Noteholders; Waiver.

 (a) Where this Base Indenture, any Indenture Supplement or any Note provides for notice to registered Noteholders of any event, such
notice will be sufficiently given (unless expressly provided otherwise herein, in such Indenture Supplement or in such Note) if in writing and mailed by overnight courier, sent by facsimile, sent by electronic transmission or personally

  
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delivered to each Noteholder of a Note affected by such event, at such Noteholder’s address as it appears in the Note Register, not later than the latest date, and not earlier than the
earliest date, prescribed for the giving of such notice. In any case where notice to Noteholders is given by mail, facsimile, electronic transmission or delivery, none of the failure to mail, send by facsimile, send by electronic transmission or
deliver such notice, or any defect in any notice so mailed, to any particular Noteholders will affect the sufficiency of such notice with respect to other Noteholders and any notice that is mailed, sent by facsimile, sent by electronic transmission
or delivered in the manner herein provided shall conclusively have been presumed to have been duly given. 
 Where this Base Indenture, any
Indenture Supplement or any Note provides for notice in any manner, such notice may be waived in writing by the Person entitled to receive such notice, either before or after the event, and such waiver will be the equivalent of such notice. Waivers
of notice by Noteholders will be filed with the Indenture Trustee, but such filing will not be a condition precedent to the validity of any action taken in reliance upon such waiver. 

(b) In case, by reason of the suspension of regular mail service as a result of a strike, work stoppage or otherwise, it will be impractical to
mail notice of any event to any Noteholder of a Note when such notice is required to be given pursuant to any provision of this Base Indenture, then any method of notification as will be satisfactory to the Indenture Trustee and the Issuer will be
deemed to be a sufficient giving of such notice. 
 (c) The Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary
each agree to accept and act upon instructions or directions pursuant to this Base Indenture or any document executed in connection herewith sent by unsecured email, facsimile transmission or other similar unsecured electronic methods;
provided, however, that the Indenture Trustee shall have received an incumbency certificate (attached hereto as Exhibits C-1 through C- 4) listing such person as a person designated to provide such instructions or
directions, which incumbency certificate may be amended whenever a person is added or deleted from the listing. If such person elects to give the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary email or facsimile
instructions (or instructions by a similar electronic method) and the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary in its discretion elects to act upon such instructions, the Indenture Trustee’s, Calculation
Agent’s, Paying Agent’s and Securities Intermediary’s reasonable understanding of such instructions, as applicable, shall be deemed controlling. 

(d) None of the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary shall be liable for any losses, costs or
expenses arising directly or indirectly from the Indenture Trustee’s reliance upon and compliance with such instructions notwithstanding such instructions conflicting with or being inconsistent with a prior written instruction except as a
result of their respective willful misconduct, negligence or bad faith. Any Person providing such instructions or directions agrees to assume all risks arising out of the use of such electronic methods to submit instructions and directions to the
Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary, including the risk of Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary acting on unauthorized instructions, and the risk of interception
and misuse by third parties and acknowledges and agrees that there may be more secure methods of transmitting such instructions than the method(s) selected by it and agrees that the security procedures (if any) to be followed in connection with its
transmission of such instructions provide to it a commercially reasonable degree of protection in light of its particular needs and circumstances. 

  
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 Section 1.8. Administrative Agent. 

(a) Discretion of Administrative Agent. Any provision providing for the exercise of discretion of the Administrative Agent means that
such discretion may be executed in the reasonable discretion of the Administrative Agent. In addition, as further provided in the definition of “Administrative Agent” herein and notwithstanding any other provision in this Base Indenture to
the contrary, any approvals, consents, votes or other rights exercisable by the Administrative Agent under this Base Indenture (other than any Indenture Supplement related to a specific Series) shall require the approval, consent, vote or other
exercise of rights of each Person specified by name under the definition of “Administrative Agent” or in its stead its Affiliate or successor as noticed to the Indenture Trustee, unless otherwise specified in any Indenture Supplement
related to a specific Series. 
 (b) Nature of Duties. The Administrative Agent shall have no duties or responsibilities except those
expressly set forth in this Base Indenture, a related Indenture Supplement or in the other Transaction Documents. The Administrative Agent shall not have by reason of this Base Indenture or any Transaction Document a fiduciary relationship in
respect of any Noteholder. Nothing in this Base Indenture or any of the Transaction Documents, express or implied, is intended to or shall be construed to impose upon the Administrative Agent any obligations in respect of this Base Indenture or any
of the other Transaction Documents except as expressly set forth herein or therein. Each Noteholder shall make its own independent investigation of the financial condition and affairs of the Issuer in connection with the purchase of any Note and
shall make its own appraisal of the creditworthiness of the Issuer and the value of the Collateral, and the Administrative Agent shall have no duty or responsibility, either initially or on a continuing basis, to provide any Noteholder with any
credit or other information with respect thereto, whether coming into its possession before the Closing Date, as applicable, or at any time or times thereafter. 

(c) Rights, Exculpation, Etc. The Administrative Agent and its directors, officers, agents or employees shall not be liable for any
action taken or omitted to be taken by it under or in connection with this Base Indenture or the other Transaction Documents. Without limiting the generality of the foregoing, the Administrative Agent: (i) may consult with legal counsel
(including counsel to the Administrative Agent or counsel to the Issuer), independent public accountants, and other experts selected by it and shall not be liable for any action taken or omitted to be taken in good faith by it in accordance with the
advice of such counsel or experts; (ii) makes no warranty or representation to any Noteholder and shall not be responsible to any Noteholder for any statements, certificates, warranties or representations made in or in connection with this Base
Indenture or the other Transaction Documents; (iii) shall not have any duty to ascertain or to inquire as to the performance or observance of any of the terms, covenants or conditions of this Base Indenture or the other Transaction Documents on
the part of any Person, the existence or possible existence of any default or Event of Default, or to inspect the Collateral or other property (including the books and records) of any Person; (iv) shall not be responsible to any Noteholder for

  
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the due execution, legality, validity, enforceability, genuineness, sufficiency or value of this Base Indenture or the other Transaction Documents or any other instrument or document furnished
pursuant hereto or thereto; and (v) shall not be deemed to have made any representation or warranty regarding the existence, value or collectability of the Collateral, the existence, priority or perfection of the Indenture Trustee’s
Adverse Claim thereon, or any certificate prepared by the Issuer in connection therewith, nor shall the Administrative Agent be responsible or liable to the Noteholders for any failure to monitor or maintain any portion of the Collateral. Without
limiting the foregoing and notwithstanding any understanding to the contrary, no Noteholder shall have any right of action whatsoever against the Administrative Agent as a result of the Administrative Agent acting or refraining from acting under
this Base Indenture, the Notes or any of the other Transaction Documents in its own interests as a Noteholder or otherwise. 
 (d)
Reliance. The Administrative Agent shall be entitled to rely upon any written notices, statements, certificates, orders or other documents or any telephone message believed by it in good faith to be genuine and correct and to have been
signed, sent or made by the proper Person, and with respect to all matters pertaining to this Base Indenture or any of the other Transaction Documents and its duties hereunder or thereunder, upon advice of counsel selected by it. 

Section 1.9. Effect of Headings and Table of Contents. 

The Article and Section headings herein and the Table of Contents are for convenience only and will not affect the construction hereof. 

Section 1.10. Successors and Assigns. 

All covenants and agreements in this Base Indenture by the Issuer will bind its successors and assigns, whether so expressed or not. All
covenants and agreements of the Indenture Trustee in this Base Indenture shall bind its successors, co-trustees and agents of the Indenture Trustee. 

Section 1.11. Severability of Provisions. 

In case any provision in this Base Indenture or in the Notes will be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions will not in any way be affected or impaired thereby. 
 Section 1.12. Benefits of Indenture. 

Nothing in this Base Indenture or in any Notes, expressed or implied, will give to any Person, other than the parties hereto and their
successors hereunder, any Authenticating Agent or Paying Agent, the Note Registrar, the Securities Intermediary, the Calculation Agent, any Secured Party and the Noteholders of Notes (or such of them as may be affected thereby), any benefit or any
legal or equitable right, remedy or claim under this Base Indenture. 

  
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 Section 1.13. Governing Law. 

THIS BASE INDENTURE AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR RELATED TO OR IN CONNECTION WITH THIS BASE INDENTURE, THE
RELATIONSHIP OF THE PARTIES HERETO, AND/OR THE INTERPRETATION AND ENFORCEMENT OF THE RIGHTS AND DUTIES OF THE PARTIES HERETO WILL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK (WITHOUT REFERENCE TO THE CONFLICT OF
LAW PRINCIPLES THEREOF OTHER THAN SECTIONS 5-1401 AND 5-1402 OF THE NEW YORK GENERAL OBLIGATIONS LAW) AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS. 

THE SECURITIES INTERMEDIARY, THE ADMINISTRATOR AND THE ISSUER AGREE THAT THEY WILL NOT CHANGE THE APPLICABLE LAW IN FORCE WITH RESPECT TO
ISSUES REFERRED TO IN ARTICLE 2(1) OF THE HAGUE SECURITIES CONVENTION TO A STATE OTHER THAN THE STATE OF NEW YORK. 
 Section 1.14.
Counterparts. 
 This Base Indenture may be executed in any number of counterparts, each of which so executed will be deemed to be an
original, but all such counterparts will together constitute but one and the same instrument. Delivery of an executed counterpart of a signature page to this Base Indenture by facsimile or other electronic means shall be effective as delivery of a
manually executed counterpart of this Base Indenture. 
 EACH OF THE PARTIES HERETO AND THE NOTEHOLDERS, BY THEIR ACCEPTANCE OF THE NOTES,
HEREBY IRREVOCABLY AND UNCONDITIONALLY: 
 (a) SUBMITS FOR ITSELF AND ITS PROPERTY IN ANY LEGAL ACTION OR PROCEEDING RELATING TO THIS BASE
INDENTURE, OR FOR RECOGNITION AND ENFORCEMENT OF ANY JUDGMENT IN RESPECT THEREOF, TO THE GENERAL JURISDICTION OF THE COURTS OF THE STATE OF NEW YORK SITTING IN THE BOROUGH OF MANHATTAN, THE FEDERAL COURTS OF THE UNITED STATES OF AMERICA FOR THE
SOUTHERN DISTRICT OF NEW YORK, AND APPELLATE COURTS FROM ANY THEREOF; 
 (b) CONSENTS THAT ANY SUCH ACTION OR PROCEEDING MAY BE BROUGHT IN
SUCH COURTS AND, TO THE EXTENT PERMITTED BY LAW, WAIVES ANY OBJECTION THAT IT MAY NOW OR HEREAFTER HAVE TO THE VENUE OF ANY SUCH ACTION OR PROCEEDING IN ANY SUCH COURT OR THAT SUCH ACTION OR PROCEEDING WAS BROUGHT IN AN INCONVENIENT COURT AND AGREES
NOT TO PLEAD OR CLAIM THE SAME; 
 (c) AGREES THAT SERVICE OF PROCESS IN ANY SUCH ACTION OR PROCEEDING MAY BE EFFECTED BY MAILING A COPY
THEREOF BY REGISTERED OR CERTIFIED MAIL (OR ANY SUBSTANTIALLY SIMILAR FORM OF MAIL), POSTAGE PREPAID, TO ITS ADDRESS SET FORTH HEREIN OR AT SUCH OTHER ADDRESS OF WHICH EACH OTHER PARTY HERETO SHALL HAVE BEEN NOTIFIED IN WRITING, EXCEPT THAT WITH
RESPECT TO THE INDENTURE TRUSTEE, CALCULATION AGENT, PAYING AGENT AND SECURITIES INTERMEDIARY, SERVICE OF PROCESS MAY ONLY BE MADE AS REQUIRED BY APPLICABLE LAW; 

  
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 (d) AGREES THAT NOTHING HEREIN SHALL AFFECT THE RIGHT TO EFFECT SERVICE OF PROCESS IN ANY
OTHER MANNER PERMITTED BY LAW OR SHALL LIMIT THE RIGHT TO SUE IN ANY OTHER JURISDICTION; 
 (e) WAIVES, TO THE FULLEST EXTENT PERMITTED BY
APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS BASE INDENTURE OR THE TRANSACTIONS CONTEMPLATED HEREBY; AND 

(f) AGREES THAT IN THE EVENT THAT ANY TERM OR PROVISION CONTAINED HEREIN SHALL CONFLICT WITH OR BE INCONSISTENT WITH ANY TERM OR PROVISION
CONTAINED IN ANY INDENTURE SUPPLEMENT, THE TERMS AND PROVISIONS OF THE APPLICABLE INDENTURE SUPPLEMENT SHALL GOVERN WITH RESPECT TO THE RELATED SERIES OF NOTES, TO THE EXTENT OF SUCH CONFLICT. 

The Trust Estate 
 Section 2.1.
Contents of Trust Estate. 
 (a) Grant of Trust Estate. The Issuer has Granted the Trust Estate to the Indenture Trustee, and the
Indenture Trustee has accepted this Grant, pursuant to the Granting Clause. 
 (b) Addition and Removal of Participation Certificates and
Mortgage Loans. 
 (i) Addition of Participation Certificates and Mortgage Loans. 

(A) PMC may at any time designate any Participation Certificates as additional Participation Certificates to be sold to the
Issuer under the PC Repurchase Agreement, whereupon such Participation Certificate shall be added to the Collateral for purposes of this Base Indenture if (1) the Administrative Agent (in its sole discretion) has approved such Participation
Certificate for addition and (2) written notice of such addition has been provided to the Note Rating Agencies for the Outstanding Notes. Prior to the addition of any Participation Certificates, as provided in this Section 2.1(b),
the Administrator must certify to the Indenture Trustee in writing that it has filed all financing statements or amendments to financing statements to ensure that the Indenture Trustee’s Security Interest in any additional Participation
Certificate, and, if applicable, in the related MSRs, is perfected and of first priority. 

  
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 (B) If any Participation Certificates are added as Collateral, the
Administrator shall update the Participation Certificate Schedule and furnish it to the Indenture Trustee, and the most recently furnished schedule shall be maintained by the Indenture Trustee as the definitive Participation Certificate Schedule.

 (C) From time to time, in accordance with the Retained Excess Spread Participation Agreement or the Excess Spread
Participation Agreement, as applicable, Mortgage Loans may be added to (i) the Retained MSR Portfolio or (ii) the Sold MSR Excess Spread PC in connection with a new confirmation being entered into thereunder, and when such Mortgage Loans
are added, PMC shall provide an updated Participation Certificate Schedule to reflect any such additions, to the Indenture Trustee and the Administrative Agent, and any new Participation Certificate Schedule shall automatically become the new
updated schedule thereof. 
 (ii) Removal of the Participation Certificates and Mortgage Loans. 

(A) PMC may remove: (1) the Sold MSR Excess Spread PC from the Collateral, whereupon such Sold MSR Excess Spread PC and
the related MSRs shall no longer constitute Collateral for purposes of this Base Indenture, if PMH shall have repurchased such Participation Certificate for the full PMH Repurchase Price and such PMH Repurchase Price has been deposited into the
Collection and Funding Account by no later than 10:00 a.m. New York City time on each Payment Date (or such other time as may be agreed to from time to time by the Servicer, the Administrator, the Indenture Trustee and the Administrative Agent), for
application in accordance with Section 4.5 (subject to Section 2.06 of the PC Repurchase Agreement); or (2) the Retained MSR Excess Spread PC from the Collateral, whereupon such Retained MSR Excess Spread PC shall no longer
constitute Collateral for purposes of this Base Indenture, if PMC shall have repurchased such Participation Certificate for the full PMC Repurchase Price and such PMC Repurchase Price has been deposited into the Collection and Funding Account, for
application in accordance with Section 4.5. 
 (B) In accordance with the Retained Excess Spread Participation
Agreement or the Excess Spread Participation Agreement, as applicable, PMC may cause the removal of the MSRs related to Subject Mortgages underlying a Participation Certificate, whereupon such MSRs shall no longer constitute Collateral for purposes
of this Base Indenture; provided, that PMC shall have repurchased such MSRs for the full PMC Repurchase Price and shall have deposited such PMC Repurchase Price into the Collection and Funding Account by no later than 10:00 a.m. New York City
time on each Payment Date (or such other time as may be agreed to from time to time by the Servicer, the Administrator, the Indenture Trustee and the Administrative Agent), for application in accordance with Section 4.5. 

  
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 (C) If any Participation Certificates are no longer Collateral, the
Administrator shall update the Participation Certificate Schedule and furnish it to the Indenture Trustee, and the most recently furnished schedule shall be maintained by the Indenture Trustee as the definitive Participation Certificate Schedule.

 (D) If any MSRs are removed from the Participation Agreements, PMC shall provide an updated schedule to the Retained MSR
Excess Spread PC to reflect any such removals, to the Indenture Trustee and the Administrative Agent within ten (10) Business Days of such removal, and any new schedule to the Retained MSR Excess Spread PC, shall automatically become the new
updated schedule thereof. 
 (c) Protection of Transfers to, and Back-up Security Interests of Issuer. The Administrator shall take
all actions as may be necessary to ensure that the Trust Estate is Granted to the Indenture Trustee pursuant to this Base Indenture. The Administrator, at its own expense, shall make (or cause to be made) all initial filings on or about the Closing
Date hereunder and shall forward a copy of such filing or filings to the Indenture Trustee. In addition, and without limiting the generality of the foregoing, the Administrator, at its own expense at the reasonable request of the Administrative
Agent, shall prepare and forward for filing, or shall cause to be forwarded for filing, all filings necessary to maintain the effectiveness of any original filings necessary under the relevant UCC to perfect and maintain the first priority status of
the Indenture Trustee’s security interest in the Trust Estate, including (i) continuation statements, and (ii) such other statements as may be occasioned by (A) any change of name of any of PMC or the Issuer, (B) any change
of location of the jurisdiction of any of PMC or the Issuer, (C) any transfer of any interest of PMC or the Issuer in any item in the Trust Estate or (D) any change under the applicable UCC or other applicable laws. The Administrator shall
enforce the Servicer’s obligations pursuant to the PC Repurchase Agreement, on behalf of the Issuer and the Indenture Trustee. 
 Section 2.2.
Asset Files. 
 (a) Indenture Trustee. The Indenture Trustee agrees to hold, in trust on behalf of the Noteholders, within two
(2) Business Days of the execution and delivery of this Base Indenture, the following documents relating to each Participation Certificate: 

(i) each original Participation Certificate; 

(ii) a copy of each Determination Date Report in electronic form listing each Participation Certificate Granted to the Trust
Estate and any other information required in any related Indenture Supplement; 
 (iii) a copy of each Funding Certification
delivered by the Administrator, which shall be maintained in electronic format; 

  
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 (iv) the current Participation Certificate Schedule; and 

(v) any other documentation provided for in any Indenture Supplement; 

provided that the Indenture Trustee shall have no responsibility to ensure the validity or sufficiency of the Participation Certificates. 

(b) Administrator as Custodian. To reduce administrative costs, the Administrator will act as custodian for the benefit of the
Noteholders of the following documents relating to each Participation Certificate: 
 (i) a copy of the related Participation
Certificate and each amendment and modification thereto; 
 (ii) any documents other than those identified in
Section 2.2(a) received from or made available by the Servicer, securities administrator or other similar party in respect of such Participation Certificate; and 

(iii) any and all other documents that the Issuer, the Servicer or PMC, as the case may be, shall keep on file, in accordance
with its customary procedures, relating to such Participation Certificate. 
 (c) Delivery of Updated Participation Certificate Schedule
and Eligible Securities Schedule. 
 (i) The Administrator shall deliver to the Indenture Trustee an updated
Participation Certificate Schedule prior to the addition, modification or deletion of any Participation Certificate as Collateral and the Indenture Trustee shall hold the most recently delivered version as the definitive Participation Certificate
Schedule. The Administrator represents and warrants, as of the date hereof and as of the date any new Participation Certificate is added as Collateral, that the Participation Certificate Schedule, as it may be updated by the Administrator from time
to time and delivered to the Indenture Trustee, is a true, complete and accurate list of all Participation Certificates. 

(ii) The Administrator shall deliver to the Indenture Trustee an updated schedule of Eligible Securities prior to the addition,
modification or deletion of any Eligible Security as Collateral and the Indenture Trustee shall hold the most recently delivered version as the definitive schedule. The Administrator represents and warrants, as of the date hereof and as of the date
any new Eligible Security is added as Collateral, that the schedule of Eligible Securities, as it may be updated by the Administrator from time to time and delivered to the Indenture Trustee, is a true, complete and accurate list of all Eligible
Securities. 
 (d) Marking of Records. The Administrator shall ensure that, from and after the time of the sale or contribution of the
Participation Certificates to the Issuer under the PC Repurchase Agreement and the Grant thereof to the Indenture Trustee pursuant to this Base Indenture, any records (including any computer records and back-up archives) maintained by or on behalf
of the Servicer that refer to any Participation Certificate indicate clearly the interest of the Issuer and the 

  
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Security Interest of the Indenture Trustee in such Participation Certificate and that such Participation Certificate is owned by the Issuer and subject to the Indenture Trustee’s Security
Interest. Indication of the Issuer’s ownership of a Participation Certificate and the Security Interest of the Indenture Trustee shall be deleted from or modified on such records when, and only when, such Participation Certificate has been paid
in full, repurchased, or assigned by the Issuer and released by the Indenture Trustee from its Security Interest. 
 (e) Custodian.
PMC, as Repo Seller, the Issuer and the Administrative Agent each confirm, and each Noteholder is deemed to confirm, that it is treating Citibank, in its capacity as a Custodian, as holding each original Participation Certificate as a
“custodian” on behalf of the Issuer as a “customer” in connection with a “securities contract” (as each such term is used in Section 101(22) of the Bankruptcy Code), and each such Person confirms (or is deemed to
confirm, in the case of the Noteholders) that in such capacity Citibank is serving as a “financial institution” (as defined in Section 101(22) of the Bankruptcy Code). Citibank confirms that it is a “commercial bank” (as
such term is used in such Section 101(22) and acknowledges such treatment by such Persons. 
 Section 2.3. Duties of Custodian with Respect to
the Asset Files. 
 (a) Safekeeping. The Indenture Trustee or the Administrator, in its capacity as custodian (each, a
“Custodian”) pursuant to Section 2.2(b), shall hold the portion of the Asset Files that it is required to maintain under Section 2.2 in its possession from time to time for the use and benefit of all
present and future Noteholders, and maintain such accurate and complete accounts, records and computer systems pertaining to each Asset File as shall enable the Calculation Agent and the Indenture Trustee to comply with this Base Indenture. Each
Custodian shall promptly report to the Issuer any failure on its part to hold the Asset Files and maintain its accounts, records and computer systems as herein provided and promptly take appropriate action to remedy any such failure. The Indenture
Trustee shall have no responsibility or liability for any actions or omissions of the Administrator in its capacity as Custodian or otherwise. 

(b) Maintenance of and Access to Records. Each Custodian shall maintain each portion of the Asset File that it is required to maintain
under this Base Indenture at its offices at the Corporate Trust Office (in the case of the Indenture Trustee) or 3043 Townsgate Road, Suite 300, Westlake Village, CA 91361 (in the case of the Servicer) as the case may be, or at such other office as
shall be specified to the Indenture Trustee and the Issuer by thirty (30) days’ prior written notice. The Administrator shall take all actions necessary, or reasonably requested by the Administrative Agent, the Majority Noteholders of all
Outstanding Notes or the Indenture Trustee, to amend any existing financing statements and continuation statements, and file additional financing statements to further perfect or evidence the rights, claims or security interests of the Indenture
Trustee under any of the Transaction Documents (including the rights, claims or security interests of the Issuer under the PC Repurchase Agreement which have been assigned to the Indenture Trustee). The Indenture Trustee and the Administrator, in
their capacities as Custodian(s), shall make available to the Issuer, the Calculation Agent, the Administrative Agent, any group of Interested Noteholders and the Indenture Trustee (in the case of the Administrator) or their duly authorized
representatives, attorneys or auditors the portion of the Asset Files that it is required to maintain under this Base Indenture and the accounts, books and records maintained by the Indenture Trustee or the Administrator with respect thereto as
promptly as reasonably practicable following not less than two (2) Business Days’ prior written notice for examination during normal business hours and in a manner that does not unreasonably interfere with such Person’s ordinary
conduct of business. 

  
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 Neither a Custodian nor any of its directors, officers or employees shall be liable to
anyone for any error of judgment, or for any act done or step taken or omitted to be taken by it (or any of its directors, officers of employees), or for any mistake of fact or law, or for anything which it may do or refrain from doing in connection
herewith, unless such action constitutes gross negligence, willful misconduct or bad faith of such Custodian. Knowledge or information acquired by Citibank in its capacity as Custodian hereunder shall not be imputed to Citibank in any other capacity
in which it may act hereunder or to any affiliate of Citibank and vice versa. The Custodian shall be deemed to have the same rights, immunities and protections as the Indenture Trustee hereunder, except that the Custodian shall not be subject to a
prudent person standard under any circumstances. 
 Section 2.4. Application of Trust Money. 

All money deposited with the Indenture Trustee or the Paying Agent pursuant to Section 4.2 shall be held in trust and applied by
the Indenture Trustee or the Paying Agent, as the case may be, in accordance with the provisions of the Notes and this Base Indenture, to the payment to the Persons entitled thereto, of the principal, interest, fees, costs and expenses (or payments
in respect of the Funding Amount or other amount) for whose payment such money has been deposited with the Indenture Trustee or the Paying Agent. 

Article III 

Administration of Participation Certificates; Reporting to Investors 

Section 3.1. Duties of the Calculation Agent. 

(a) General. The Calculation Agent shall initially be Citibank. The Calculation Agent is appointed for the purpose of making
calculations and verifications as provided in this Section 3.1(a). The Calculation Agent, as agent for the Noteholders, shall provide all services necessary to fulfill the role of Calculation Agent as set forth in this Base Indenture.

 By no later than 1:00 p.m. New York City time on the first (1st) Business Day prior to each Interim Payment Date or
Payment Date, as applicable, the Administrator shall prepare and deliver to the Calculation Agent, the Indenture Trustee, the Paying Agent, the Administrative Agent and the VFN Noteholders a report (the “Administrator’s Calculation
Report”) containing the detailed information described in this Section 3.1(a) and pursuant to Section 3.2(b). 

  
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 By 2:00 p.m. New York City time on each Payment Date (or such other time as
may be agreed to from time to time by the Servicer, the Administrator, the Indenture Trustee and the Administrative Agent), based upon the Administrator’s Calculation Report and any additional information provided to the Indenture Trustee and
the Calculation Agent by the Administrator pursuant to the Fannie Mae Lender Contract and the Transaction Documents, as well as each applicable Determination Date Report, all available reports issued by the Servicer, the Market Value Report issued
by the MSR Valuation Agent and any report issued as to the Market Value of any Eligible Securities (to the extent any Eligible Securities are on deposit in the Eligible Securities Account) as of the Determination Date, the Calculation Agent shall
perform certain calculations and verifications as follows: 
 (i) an indication (yes or no) as to whether a Borrowing Base
Deficiency exists as of the close of business on the last day of the related Collection Period preceding the upcoming Payment Date; 

(ii) if the Full Amortization Period is in effect, the Series Available Funds for each Series for the upcoming Payment Date;

 (iii) if required by any VFN Noteholder, the aggregate Funding Amount to be paid on the upcoming Funding Date, and the
amount to be drawn on each Class of VFNs Outstanding in respect of such Funding Amount, and the portion of such Funding Amount that is to be paid using Available Funds pursuant to Section 4.5(a)(1)(viii); 

(iv) if any Note is Outstanding, the amount, if any, to be paid on each such Class in reduction of the aggregate principal
balance on the upcoming Payment Date; 
 (v) the amount of Fees to be paid on the upcoming Payment Date, the amount remaining
before the applicable Expense Limit is reached (before and after giving effect to such payments), and, if applicable, any amounts in excess of the Expense Limit to be carried forward to a subsequent year or Payment Date; 

(vi) the Required Available Funds, the Expense Reserve Required Amount and the Series Reserve Required Amount, if applicable,
for each Series of Notes for the upcoming Payment Date; 
 (vii) the Weighted Average Advance Rate for the facility to be
used in calculating whether a Borrowing Base Deficiency exists and for each Series and Class of Variable Funding Notes; 

(viii) the Series Invested Amount and, if applicable, the Class Invested Amount for each Series and Class for the upcoming
Payment Date; 
 (ix) the Interest Payment Amount, the Default Supplemental Fee and the Step- Up Fee for each Class of
Outstanding Notes for the upcoming Payment Date, and the Interest Amount, the Cumulative Interest Shortfall Amount, the Cumulative Default Supplemental Fee Shortfall Amount and the Cumulative Step-Up Fee Shortfall Amount for each Class of Notes for
the Interest Accrual Period related to the upcoming Payment Date; 

  
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 (x) an indication (yes or no) as to whether an Advance Rate Trigger Event,
Early Amortization Event or Event of Default hereunder has occurred; and 
 (xi) verification of the calculation of the
Stop-Loss Cap and the Stop-Loss Cap Required Amount for the upcoming Payment Date as of the last day of the immediately preceding month, which shall be calculated by PMC on a monthly basis and on a quarterly basis will be calculated using the SDQ
Rate provided by Fannie Mae for such quarter to the extent available from Fannie Mae. 
 The Calculation Agent does not receive any loan
data or financial information independent from what is supplied to it by the Administrator. Thus, any components of the calculations or verifications to be performed by the Calculation Agent that require loan data information, including pool
balance, SDQ balance, and non-SDQ loan balances, as well as any financial statement data (including any PIPs), are taken as provided by the Administrator without verification or recalculation. 

(b) Termination of Calculation Agent. The Issuer (with the consent of the Majority Noteholders for each Series) may at any time
terminate the Calculation Agent without cause upon sixty (60) days’ prior notice. If at any time the Calculation Agent shall fail to resign after written request therefor as set forth in this Section 3.1(b), or if at any time the
Calculation Agent shall be legally unable to act, or shall be adjudged bankrupt or insolvent, or a receiver of the Calculation Agent or of its property shall be appointed, or if any public officer shall take charge or Control of the Calculation
Agent or of its property or affairs for the purpose of rehabilitation, conservation or liquidation, then the Majority Noteholders of all Outstanding Notes may remove the Calculation Agent and if the same entity serves as both Calculation Agent and
Indenture Trustee, the Majority Noteholders of all Outstanding Notes shall also remove the Indenture Trustee as provided in Section 11.9(c). If the Calculation Agent resigns or is removed under the authority of the immediately preceding
sentence, then a successor Calculation Agent shall be appointed pursuant to Section 11.9. The Issuer shall give each Note Rating Agency and the Noteholders notice of any such resignation or removal of the Calculation Agent and appointment and
acceptance of a successor Calculation Agent. Notwithstanding the foregoing, no resignation, removal or termination of the Calculation Agent shall be effective until the resignation, removal or termination of the predecessor Calculation Agent and
until the acceptance of appointment by the successor Calculation Agent as provided herein. Any successor Indenture Trustee appointed shall also be the successor Calculation Agent hereunder, if the predecessor Indenture Trustee served as Calculation
Agent and no separate Calculation Agent is appointed. Notwithstanding anything to the contrary herein, the Indenture Trustee may not resign as Calculation Agent unless it also resigns as Indenture Trustee pursuant to Section 11.9(b). 

(c) Successor Calculation Agents. Any successor Calculation Agent appointed hereunder shall execute, acknowledge and deliver to the
Issuer and to its predecessor Calculation Agent an instrument accepting such appointment under this Base Indenture, and thereupon the resignation or removal of the predecessor Calculation Agent shall become effective and such

  
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successor Calculation Agent, without any further act, deed or conveyance, shall become fully vested with all the rights, powers, duties and obligations of its predecessor under this Base
Indenture, with like effect as if originally named as Calculation Agent. The predecessor Calculation Agent shall deliver to the successor Calculation Agent all documents and statements held by it under this Base Indenture. The Issuer and the
predecessor Calculation Agent shall execute and deliver such instruments and do such other things as may reasonably be required for fully and certainly vesting and confirming in the successor Calculation Agent all such rights, powers, duties and
obligations. Upon acceptance of appointment by a successor Calculation Agent as provided in this Section 3.1, the Issuer shall mail notice of the succession of such successor Calculation Agent under this Base Indenture to all Noteholders
at their addresses as shown in the Note Register and shall give notice by mail to each applicable Note Rating Agency. If the Issuer fails to mail such notice within ten (10) days after acceptance of appointment by the successor Calculation
Agent, the successor Calculation Agent shall cause such notice to be mailed at the expense of the Administrator. 
 Section 3.2. Reports by
Administrator and Indenture Trustee. 
 (a) Determination Dates; Determination Date Reports. The Indenture Trustee shall report to
the Administrator, by no later than 2:00 p.m. New York City time on the second (2nd) Business Day before each Funding Date (or such other time as may be agreed to from time to time by Administrator, the Indenture Trustee and the Administrative
Agent), the amount of Available Funds that will be available to be applied toward Funding Amounts or to pay principal on any applicable Notes on the upcoming Payment Date or Interim Payment Date. If the Administrator supplies no information to the
Indenture Trustee in its Determination Date Report concerning Funding Amounts or payments on any Variable Funding Note in respect of an Interim Payment Date, then the Indenture Trustee shall apply no Available Funds to pay Funding Amounts or to make
payment on any Note on such Interim Payment Date, unless an Event of Default has occurred and is continuing, in which case the Indenture Trustee shall apply the Available Funds pursuant to Section 4.5(a)(ii). 

By no later than 10:00 a.m. New York City time on the first (1st) Business Day prior to each Funding Date that is an Interim Payment Date
and by no later than 2:00 p.m. New York City time on the second (2nd) Business Day prior to each Funding Date that is a Payment Date (or such other time as may be agreed to from time to time by the Administrator, the Indenture Trustee and the
Administrative Agent), the Administrator shall prepare and deliver to the Issuer, the Indenture Trustee, the Calculation Agent, the Administrative Agent, each VFN Noteholder and the Paying Agent a report (the “Determination Date
Report”) (in electronic form) setting forth (i) each data item required to be reported pursuant to Section 4.3, (ii) the information reported in the Administrator’s Calculation Report, and (iii) any
additional information necessary to prepare the Payment Date Report pursuant to Section 3.2(b). 
 (b) Payment Date
Report. By 2:00 p.m. New York City time on each Payment Date (or such other time as may be agreed to from time to time by the Servicer, the Administrator, the Indenture Trustee and the Administrative Agent), based upon information provided to
the Indenture Trustee and the Calculation Agent by the Administrator pursuant to the Fannie Mae Lender Contract and the Transaction Documents and contained in the Administrator’s Calculation Report, as well as each applicable Determination Date
Report, all available reports issued by the Servicer, the Market Value Report issued by the MSR Valuation Agent and any report issued as to 

  
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the Market Value of any Eligible Securities (to the extent any Eligible Securities are on deposit in the Eligible Securities Account) as of the Determination Date, the Indenture Trustee shall
make available on its website to the Issuer, the Calculation Agent, the Administrator, the Paying Agent, the Administrative Agent, each Noteholder and each Note Rating Agency, and solely during the Default Period, the Disposition Manager, a report
(the “Payment Date Report”) reporting the following for such Payment Date and the related Collection Period preceding such Payment Date: 

(i) the amount of Available Funds and Required Available Funds for such Payment Date (segregating out any cash amounts that are
on deposit in the Collection and Funding Account which the Administrator has instructed the Indenture Trustee to use in accordance with Section 4.5(a)(1)(viii)); 

(ii) (A) the aggregate amount of all Collections received and deposited into the Collection and Funding Account during such
Collection Period and (B) the Total Collections for such Payment Date; 
 (iii) all Funding Amounts paid during such
Collection Period separately identifying the portion thereof paid from funds in the Collection and Funding Account and the portion thereof paid using proceeds of fundings of an increase in VFN Principal Balance(s) for each Class of VFNs; 

(iv) the amount on deposit in any Trust Accounts set forth under any Indenture Supplement as of the close of business on the
last Payment Date; 
 (v) the amount on deposit in the Series Reserve Account for each Series, and, if applicable, the amount
the Indenture Trustee is to withdraw from each such Series Reserve Account and deposit into the Note Payment Account on such Payment Date for application to the related Series of Notes; 

(vi) the amount on deposit in the Expense Reserve Account, and, if applicable, the amount the Indenture Trustee is to withdraw
from the Expense Reserve Account and deposit into the Note Payment Account on such Payment Date for application to the related Series of Notes; 

(vii) the amount of each payment required to be made by the Indenture Trustee or the Paying Agent pursuant to
Section 4.5 on such Payment Date; 
 (viii) the unpaid Note Balance for each Class and Series of Notes and for
all Outstanding Notes in the aggregate (before and after giving effect to any principal payments to be made on such Payment Date); 

(ix) a statement indicating whether a Borrowing Base Deficiency existed at such time and whether it will exist as of the close
of business on such Payment Date after all payments and distributions described in Section 4.5(a); 

  
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 (x) any Eligible Securities as of the Determination Date and the unpaid
principal balance of the Portfolio; 
 (xi) (A) the aggregate Available Funds collected, separately identifying (1) the
aggregate Retained MSR Excess Spread, Retained MSR Excess Spread Collections, the Sold MSR Excess Spread and the Total Collections included therein, and (2) the aggregate amount of proceeds collected during the Collection Period preceding the
upcoming Payment Date for all Participation Certificates less any amounts distributed on any Interim Payment Date during such Collection Period; and (B) separately identifying any PMH Repurchase Price, PMC Repurchase Price and any payments
under the PC Repo Guaranty; and 
 (xii) an indication (yes or no) as to whether Servicer is in compliance with the following
Fannie Mae servicer eligibility requirements (collectively, the “Fannie Mae Eligibility Requirements”): 

(A) its Lender Adjusted Net Worth is equal to or greater than the lender adjusted net worth required by the Fannie Mae Lender
Contract; 
 (B) its Lender Adjusted Net Worth to total assets ratio is equal to or less than the minimum capital required by
the Fannie Mae Lender Contract; 
 (C) its Liquidity is equal to or greater than the liquidity requirement set forth in the
Fannie Mae Lender Contract; and 
 (D) an indication (yes or no) as to whether a Servicer Termination Event has occurred.

 The Payment Date Report shall also state any other information required pursuant to any related Indenture Supplement
necessary for the Paying Agent and the Indenture Trustee to make the payments required by Section 4.5(a) and all information necessary for the Indenture Trustee to make available to Noteholders pursuant to Section 3.5. 

On each day on which a Payment Date Report is to be delivered, PMC shall deliver to the Indenture Trustee a certification
substantially in the form attached hereto as Exhibit F. 
 Noteholders of any Series of Term Notes shall receive
solely the Payment Date Report and shall not receive the Market Value Report prepared by the MSR Valuation Agent. 
 (c) Interim Payment
Date Reports. By no later than 3:00 p.m. New York City time on each Interim Payment Date on which there is a VFN Outstanding and on which the Full Amortization Periods have not yet begun and on which payments pursuant to clause (iii) with
respect to a Class of Notes are being made, the Indenture Trustee shall prepare and deliver to the Issuer, the Calculation Agent, the Administrator, the Paying Agent, the Administrative Agent and each VFN Noteholder a report (an “Interim
Payment Date Report”) in electronic form, setting forth the following for such Interim Payment Date and the Collection Period preceding such Interim Payment Date: 

  
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 (i) the amount of Available Funds and Required Available Funds for such
Interim Payment Date; 
 (ii) the aggregate amount of all Collections received and deposited into the Collection and Funding
Account during such Collection Period; 
 (iii) the total of all (A) payments in respect of each Class of Notes
(separately identifying interest and principal paid on each Class of Variable Funding Notes) made on the Interim Payment Date that occurred during such Collection Period, (B) all Funding Amounts that were paid in respect of any Participation
Certificate created or acquired on or after the Cut-off Date and sold by PMC to the Issuer under the PC Repurchase Agreement during such Collection Period, separately identifying the portion thereof paid from funds on deposit in the Collection and
Funding Account and the portion thereof paid using proceeds of an increase in VFN Principal Balance(s) for each Class of VFNs, and (C) all Net Excess Cash Amounts paid to
PMC asthe holder of the Owner Trust Certificate on the Interim Payment Date that occurred during such Collection Period; 

(iv) the amount on deposit in the Series Reserve Account for each Series and the Series Reserve Required Amount for such Series
Reserve Account, if applicable, and the amount to be deposited into each Series Reserve Account on such Interim Payment Date, if applicable; 

(v) the amount on deposit in the Expense Reserve Account for each Series and the Expense Reserve Required Amount for the
Expense Reserve Account and the amount to be deposited into the Expense Reserve Account on such Interim Payment Date, if applicable; 

(vi) the amounts required to be deposited on such Interim Payment Date into any other Trust Account referenced in any related
Indenture Supplement; 
 (vii)(A) the Collateral Value as of the end of such Collection Period and as of the close of
business on such Interim Payment Date for each Outstanding Series of Notes, and (B) a calculation demonstrating whether a Borrowing Base Deficiency exists; and 

(viii) any other amounts specified in an Indenture Supplement. 

On each day on which an Interim Payment Date Report is to be delivered, PMC shall deliver to the Indenture Trustee a certification
substantially in the form attached hereto as Exhibit F. 
 (d) No Duty to Verify or Recalculate. Notwithstanding anything
contained herein to the contrary, none of the Calculation Agent (except as described in Section 3.1(a)), the Indenture Trustee or the Paying Agent shall have any obligation to verify or recalculate any information provided to them by the
Administrator or any other Person, and may rely on such information in making the allocations and payments to be made pursuant to Article IV. The Indenture Trustee may conclusively rely without investigation on the most recent Determination
Date Report provided to the Indenture Trustee by the Administrator in preparing the Determination Date Reports and Interim Payment Date Reports (if any). 

  
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 Section 3.3. Annual Statement as to Compliance; Notice of Default; Reports. 

(a) Annual Officer’s Certificates. 

(i) The Servicer shall deliver to each Note Rating Agency and the Indenture Trustee, on or before March 31 of each year,
beginning on March 31, 2018, an Officer’s Certificate of the Servicer, executed by a Responsible Officer, stating that (A) a review of the activities of the Servicer during the preceding 12-month period ended December 31 (or, in
the case of the first such statement, from the Closing Date through December 31, 2017) and of its performance under this Base Indenture and the PC Repurchase Agreement has been made under the supervision of the officer executing the
Officer’s Certificate, and (B) PMC has fulfilled all its obligations under this Base Indenture and the PC Repurchase Agreement in all material respects throughout such period or, if there has been a default in the fulfillment of any such
obligation, specifying each such default and the nature and status thereof. 
 (ii) The Administrator shall deliver to each
Note Rating Agency and the Indenture Trustee, on or before March 31 of each year, beginning on March 31, 2018, an Officer’s Certificate executed by a Responsible Officer of the Administrator, stating that (A) a review of the
activities of the Issuer and the Administrator during the preceding 12- month period ended December 31 (or, in the case of the first such statement, from the Closing Date through December 31, 2017) and of its performance under this Base
Indenture and the PC Repurchase Agreement has been made under the supervision of the officer executing the Officer’s Certificate, and (B) the Administrator has fulfilled all its obligations under this Base Indenture in all material
respects throughout such period or, if there has been a default in the fulfillment of any such obligation, specifying each such default and the nature and status thereof. 

(b) Notice of Advance Rate Trigger Event, Early Amortization Event or Event of Default. The Indenture Trustee shall deliver to the
Noteholders, the Issuer, the Disposition Manager, Fannie Mae (in connection with an Event of Default only) and each Note Rating Agency, promptly after a Responsible Officer has obtained actual knowledge thereof, but in no event later than five
(5) Business Days thereafter or such shorter time period as may be required by any Note Rating Agency, written notice specifying the nature and status of any Advance Rate Trigger Event, Early Amortization Event or any Event of Default, as
applicable. 
 (c) Annual Regulation AB/USAP Report. The Servicer shall, on or before the last Business Day of the fifth month
following the end of each of the Servicer’s fiscal years (December 31), beginning with the fiscal year ending on December 31, 2017, deliver to the Indenture Trustee who shall forward to each Noteholder a copy of the results of any
Regulation AB required attestation report or Uniform Single Attestation Program for Mortgage Bankers or similar review conducted on the Servicer by its accountants and any other reports reasonably requested by the Administrative Agent, including any
notices from Fannie Mae. 

  
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 (d) Annual Lien Opinion. Within one hundred (100) days after the end of each
fiscal year of the Administrator, beginning with the fiscal year ending on December 31, 2017, the Administrator shall deliver to the Indenture Trustee an Opinion of Counsel from outside counsel to the effect that, subject to the Acknowledgment
Agreement and the Fannie Mae Requirements, the Indenture Trustee has a perfected security interest in the Participation Certificates identified in an exhibit to such opinion, and that, based on a review of UCC search reports (copies of which shall
be attached thereto) and review of other certifications and other materials, there are no UCC-1 filings indicating an Adverse Claim with respect to such Participation Certificates that has not been released. 

(e) Other Information. In addition, the Administrator shall forward to the Administrative Agent, upon its reasonable request, such other
information, documents, records or reports respecting (i) PMC or any of its Affiliates party to the Transaction Documents, (ii) the condition or operations, financial or otherwise, of PMC or any of its Affiliates party to the Transaction
Documents, (iii) the Fannie Mae Lender Contract, the related Mortgage Loans and the Participation Certificates or (iv) the transactions contemplated by the Transaction Documents, including access to the Servicer’s management and
records. The Administrative Agent shall and shall cause its respective representatives to hold in confidence all such information except to the extent disclosure may be required by law (and all reasonable applications for confidential treatment are
unavailing) or the Administrative Agent may reasonably determine that such disclosure is consistent with its obligations hereunder; provided, however, that the Administrative Agent may disclose on a confidential basis any such
information to its agents, attorneys and auditors in connection with the performance of its responsibilities hereunder. 
 (f) MSR Monthly
Report. On a monthly basis and in no event later than the fifteenth (15th) day of each month (or, if such day is not a Business Day, the Business Day following such day), PMC shall deliver to the Indenture Trustee and the MSR Valuation
Agent the monthly data file with respect to all Mortgage Loans (the “MSR Monthly Report”) subject to the terms and conditions of this Base Indenture, which shall include all updates to the Mortgage Loans as of the last day of
the immediately preceding month. 
 (g) Market Value Report. The MSR Valuation Agent shall calculate the fair market value and the
valuation percentage of the MSRs, the Portfolio Excess Spread and the Base Servicing Fee on each Borrowing Base Determination Date in accordance with the MSR Valuation Agent Agreement. The MSR Valuation Agent shall deliver to the Indenture Trustee,
the Servicer, the Administrator, the Administrative Agent and the Disposition Manager, a monthly report (the “Market Value Report”) no later than the Determination Date prior to the related Payment Date, stating (i) the
fair market value and the valuation percentage of the MSRs, the Portfolio Excess Spread and the Base Servicing Fee as of
the related Borrowing Base Determination Date., and (ii) the fair market value and the valuation percentage of the MSRs, which assumes that the 10-year
U.S. Treasury rate (mid-mark) declines or increases by more than 0.375% from the 10-year U.S. Treasury rate (mid-mark) as of the most recent Borrowing Base Determination Date (as determined by the MSR Valuation Agent). 

  
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 (h) In the event that the MSR Valuation Agent does not provide its Market Value Report by
the Determination Date for two (2) consecutive months, PMC shall be required to terminate the MSR Valuation Agent and appoint a replacement MSR Valuation Agent who shall be (i) an eligible MSR Valuation Agent and (ii) required to
deliver a Market Value Report no later than the tenth (10th) day of the month immediately following appointment of the replacement MSR Valuation Agent. 

(i) MSR Valuation Agent. PMC shall have the right to remove and replace the MSR Valuation Agent without cause with prior written consent
of the Administrative Agent. 
 (j) Disposition Manager. The Disposition Manager will have the duties specifically set forth in the
Disposition Management Agreement, including a requirement to assist in the engagement of an appropriate third party broker (such broker, the “MSR Sales Agent”) and coordinate the sale of the MSRs in accordance with the rights
and responsibilities of the Indenture Trustee as secured party under the Acknowledgment Agreement. Prior to the occurrence and continuation of an Event of Default, PMC shall have the right to remove and replace the Disposition Manager without cause
with prior written consent of the Administrative Agent and Fannie Mae. The Disposition Manager shall have the right to resign under the circumstances described in the Disposition Management Agreement. No resignation or removal of the Disposition
Manager and no appointment of a successor Disposition Manager will become effective until the acceptance of appointment by a successor Disposition Manager. Pursuant to the Disposition Management Agreement, if no successor Disposition Manager shall
have been appointed and shall have accepted appointment within sixty (60) days after the giving of a notice of resignation, the resigning Disposition Manager may petition any court of competent jurisdiction for the appointment of a successor
Disposition Manager, and the costs of the Disposition Manager in connection with such petition shall be reimbursable in accordance with the Disposition Management Agreement. Notwithstanding anything in this Base Indenture to the contrary, in the
event of any conflict between this Base Indenture (or any provision of this Base Indenture) and the Disposition Management Agreement, the terms of the Disposition Management Agreement shall prevail. 

Section 3.4. Access to Certain Documentation and Information. 

(a) Access to Information. 

Notwithstanding anything to the contrary contained in this Section 3.4, Section 2.3, or in any other Section hereof, the Servicer, on
reasonable prior written notice (of not less than five (5) Business Days), shall permit the Administrative Agent, the Indenture Trustee, the MSR Valuation Agent or any agent or independent certified public accountants selected by the Indenture
Trustee, during the Servicer’s normal business hours, and in a manner that does not unreasonably interfere with the Servicer’s conduct of its regular business, to examine all the books of account, records, reports and other papers of the
Servicer relating to the Portfolio Mortgage Loans, Fannie Mae Lender Contract and the Participation Certificates, to make copies and extracts therefrom, and to discuss the Servicer’s affairs, finances and accounts relating to the Portfolio
Mortgage Loans, Fannie Mae Lender Contract and the Participation Certificates with the Servicer’s officers and employees, all at such times and as often as reasonably may be requested; provided that any such Person seeking access to any
information or documentation pursuant to this Section 3.4(a) has 

  
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agreed with the Servicer to be bound by any confidentiality provisions reasonably requested by the Servicer and shall upon request execute and deliver a separate confidentiality agreement
memorializing such provisions. Unless an Event of Default that has not been waived in accordance with the terms hereof shall have occurred, any out-of-pocket costs and expenses incident to the exercise by the Indenture Trustee or any Noteholder of
any right under this Section 3.4 shall be borne by the requesting Noteholder(s). The parties hereto acknowledge that the Indenture Trustee shall not exercise any right pursuant to this Section 3.4 prior to any event set forth in the
preceding sentence unless directed to do so by a group of Interested Noteholders, and the Indenture Trustee has been provided with indemnity satisfactory to it by such Interested Noteholders. The Indenture Trustee shall have no liability for action
or inaction in accordance with the preceding sentence. 
 In the event that such rights are exercised following the occurrence of an Event
of Default that has not been waived in accordance with the terms hereof and is continuing, all reasonable and customary out-of-pocket costs and expenses actually incurred by the Indenture Trustee shall be borne by PMC. Prior to any such payment, PMC
shall be provided with commercially reasonable documentation of such costs and expenses. Notwithstanding anything contained in this Section 3.4 to the contrary, in no event shall the books of account, records, reports and other papers of PMC or the
Issuer relating to the Portfolio Mortgage Loans and the Participation Certificates be examined by independent certified public accountants at the direction of the Indenture Trustee or any Interested Noteholder pursuant to the exercise of any right
under this Section 3.4 more than one time during any 12 month period at the expense of the Administrator, unless an Event of Default has occurred that has not been waived in accordance with the terms hereof during such twelve-month period, in
which case more than one examination may be conducted during a twelve-month period, but such extra audits shall be at the sole expense of the Noteholder(s) requesting such audit(s). 

(b) Access to Issuer. The Issuer agrees that, on reasonable prior notice, it will permit any representative of the Indenture Trustee (at
the written direction of the Majority Noteholders), the MSR Valuation Agent or the Administrative Agent at the expense of the Administrator no more than one time during any 12-month period (unless an Event of Default has occurred that has not been
waived in accordance with the terms hereof during such twelve-month period, in which case more than one examination may be conducted during a twelve-month period, but such extra audits shall be at the sole expense of the party requesting such
audit(s)), to examine all of its books of account, records, reports, and other papers, to make copies and extracts therefrom, to cause such books to be audited by independent certified public accountants, and to discuss its affairs, finances and
accounts its officers, employees, and independent certified public accountants, all at such reasonable times and as often as may be reasonably requested. The Indenture Trustee, the MSR Valuation Agent and the Administrative Agent shall and shall
cause their respective representatives to hold in confidence all such information except to the extent disclosure may be required by law (and all reasonable applications for confidential treatment are unavailing) or the Indenture Trustee, the MSR
Valuation Agent or the Administrative Agent, as applicable, may reasonably determine that such disclosure is consistent with its obligations hereunder; provided, however, that the Indenture Trustee may disclose on a confidential basis
any such information to its agents, attorneys and auditors in connection with the performance of its responsibilities hereunder. Without limiting the generality of the foregoing, neither the Indenture Trustee, the MSR Valuation Agent or the
Administrative Agent shall disclose information to any of its Affiliates or any of their respective directors, officers, employees and agents, that may provide any servicer advance financing to PMC, the Issuer or any of their Affiliates, except in
such Affiliate’s capacity as Noteholder. 

  
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 Section 3.5. Indenture Trustee to Make Reports Available. 

(a) Monthly Reports on Indenture Trustee’s Website. Notwithstanding any other provision of this Base Indenture that requires
Citibank, in any capacity, to deliver or provide to any Person the Payment Date Report (and, at its option, any additional files containing the same information in an alternative format), Citibank, in any capacity, shall be entitled, in lieu of such
delivery, to make such report available each month to any interested parties, including Fannie Mae, via the Indenture Trustee’s internet website and such other information as the Indenture Trustee may have in its possession, but only with the
use of a password provided by the Indenture Trustee. In connection with providing access to the Indenture Trustee’s internet website, the Indenture Trustee may require registration and the acceptance of a disclaimer. The Indenture
Trustee’s internet website shall initially be located at www.sf.citidirect.com. Assistance in using the Indenture Trustee’s website can be obtained by calling the Indenture Trustee’s investor relations desk at 1-888-855-9695. Parties
that are unable to use the above distribution option are entitled to have a paper copy mailed to them via first class mail or by overnight courier by calling the investor relations desk and requesting a copy. The Indenture Trustee shall have the
right to change the way the Payment Date Reports are distributed in order to make such distribution more convenient and/or more accessible to the above parties and the Indenture Trustee shall provide timely and adequate notification to all above
parties regarding any such changes. The Indenture Trustee shall not be required to make available via its website any information that in its judgment is confidential, may include any Nonpublic Personal Information or could otherwise violate
applicable law, or could result in personal liability to the Indenture Trustee. In addition, the Indenture Trustee shall have no liability for the failure to include or post any information that it has not actually received or is not in a form or
format that will allow it to post any such information on its website. 
 (b) Notwithstanding any provision herein to the contrary, including
Sections 3.1, 3.2 and 3.5 hereof, the Indenture Trustee, the Administrative Agent and any other party hereto shall not deliver, or make available, the Market Value Information to any Noteholder of any Series of Term Notes prior
to the occurrence, or following the cure or waiver, of an Event of Default; and prior to the occurrence, or during the continuation, of an Event of Default, any Determination Date Report, Interim Payment Date Report, Payment Date Report made
available to any Noteholders of Outstanding Series of Term Notes by Citibank, in any capacity, pursuant to this Section 3.5 or otherwise hereunder shall be redacted to remove any Market Value Information prior to being made so available.

 (c) Annual Reports. Within sixty (60) days after the end of each year, the Indenture Trustee shall furnish to each Person
(upon the written request of such Person), who at any time during the year was a Noteholder a statement containing (i) information regarding payments of principal, interest and other amounts on such Person’s Notes, aggregated for such year
or the applicable portion thereof during which such person was a Noteholder and (ii) such other customary information as may be deemed necessary or desirable for Noteholders to prepare their tax returns. Such obligation shall be deemed to have
been satisfied to the extent that substantially comparable information is provided pursuant to any requirements of the Code as are from time to time in force. The Indenture Trustee shall prepare and provide to the Internal Revenue Service and to
each Noteholder any information reports required to be provided under federal income tax law, including IRS Form 1099. 

  
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 Article IV 

The Trust Accounts; Payments 

Section 4.1. Trust Accounts. 
 The
Indenture Trustee shall establish and maintain, or cause to be established and maintained, (i) the Trust Accounts (other than the Expense Reserve Account), each of which shall be an Eligible Account, for the benefit of the Secured Parties, and
(ii) an Expense Reserve Account, which shall be an Eligible Account, for the benefit of the Indenture Trustee and the MSR Valuation Agent. All amounts held in the Trust Accounts shall, to the extent permitted by this Base Indenture and
applicable laws, rules and regulations, be invested in Permitted Investments by the depository institution or trust company then maintaining such Trust Account only upon written direction of the Administrator to the Indenture Trustee;
provided, however, that in the event the Administrator fails to provide such written direction to the Indenture Trustee, and until the Administrator provides such written direction, the Indenture Trustee shall not invest funds on deposit
in any Trust Account. Funds deposited into a Trust Account on a Business Day after 1:30 p.m. New York City time will not be invested until the following Business Day. Investments held in Permitted Investments in the Trust Accounts shall not be sold
or disposed of prior to their maturity (unless an Event of Default has occurred). Earnings on investment of funds in any Trust Account shall be remitted by the Indenture Trustee upon the Administrator’s request to the account or other location
of the Administrator’s designation on the first (1st) Business Day of the month following the month in which such earnings on investment of funds is received. Any losses and investment expenses relating to any investment of funds in any
Trust Account shall be for the account of the Administrator, which shall deposit or cause to be deposited the amount of such loss (to the extent not offset by income from other investments of funds in the related Trust Account) in the related Trust
Account promptly upon the realization of such loss. The taxpayer identification number associated with each of the Trust Accounts shall be that of the Issuer, and the Issuer shall report for federal, state and local income tax purposes their
respective portions of the income, if any, earned on funds in the relevant Trust Account. The Administrator hereby acknowledges that all amounts on deposit in each Trust Account (excluding investment earnings on deposit in the Trust Accounts) are
held in trust by the Indenture Trustee for the benefit of the Secured Parties, subject to any express rights of the Issuer set forth herein, and shall remain at all times during the term of this Base Indenture under the sole dominion and control of
the Indenture Trustee. 
 So long as the Indenture Trustee complies with the provisions of this Section 4.1, the Indenture
Trustee shall not be liable for the selection of investments or for investment losses incurred thereon by reason of investment performance, liquidation prior to stated maturity or otherwise in any Trust Account. The Indenture Trustee shall have no
liability in respect of losses incurred in any Trust Account as a result of the liquidation of any investment prior to its stated maturity or the failure to be provided with timely written investment direction. 

  
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 In order to comply with the laws, rules, regulations and executive orders in effect from
time to time applicable to banking institutions, including those relating to the funding of terrorist activities and money laundering, including Section 326 of the USA Patriot Act of the United States (“Applicable Law”),
the Indenture Trustee is required to obtain, verify, record and update certain information relating to individuals and entities which maintain a business relationship with the Indenture Trustee. Accordingly, each of the parties agrees to provide to
the Indenture Trustee upon its request from time to time such identifying information and documentation as may be available for such party in order to enable the Indenture Trustee to comply with Applicable Law. 

All parties to this Base Indenture agree, and each Noteholder of each Series by its acceptance of the related Note will be deemed to have
agreed, that such Noteholder shall have no claim or interest in the amounts on deposit in any Trust Account created under this Base Indenture or any related Indenture Supplement related to an unrelated Series except as expressly provided herein or
therein. 
 The Indenture Trustee or its Affiliates are permitted to receive additional compensation that could be deemed to be for the
Indenture Trustee’s economic self-interest for (a) serving as investment adviser, administrator, shareholder, servicing agent with respect to certain of the Permitted Investments, (b) using Affiliates to effect transactions in certain
Permitted Investments and (c) effecting transactions in certain Permitted Investments. Such compensation is not payable or reimbursable under this Base Indenture. 

The State of New York is the Securities Intermediary’s jurisdiction for purposes of the UCC, and the laws of the State of New York are
applicable to all issues specified in Article 2(1) of the Hague Securities Convention. This Base Indenture is the only “account agreement” in respect of the Trust Accounts. 

Section 4.2. Collections and Disbursements of Portfolio Collections by Servicer. 

(a) Daily Deposits of Portfolio Amounts. The Servicer shall remit all Portfolio Collections in accordance with the respective
Participation Certificates, Participation Agreements and the PC Repurchase Agreement. Any amounts that shall be remitted to the Issuer shall be remitted directly to the Collection and Funding Account. 

(b) Payment Dates. On each Payment Date, the Indenture Trustee shall transfer from the Collection and Funding Account to the Note
Payment Account all funds then on deposit therein. Except in the case of Redemption Amounts, which may be remitted by the Issuer directly to the Note Payment Account, none of the Servicer, the Administrator, the Issuer, the Calculation Agent nor the
Indenture Trustee shall remit to the Note Payment Account, and each shall take all reasonable actions to prevent other Persons from remitting to the Note Payment Account, amounts which do not constitute payments, collections or recoveries received,
made or realized in respect of the Participation Certificates or the other Collateral or the initial cash, if any, deposited by the Noteholders with the Indenture Trustee on the date hereof, and the Indenture Trustee will return to the Issuer or the
Servicer any such amounts upon receiving written evidence reasonably satisfactory to the Indenture Trustee that such amounts are not a part of the Trust Estate. 

  
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 Section 4.3. Fundings. 

(a) Funding Certifications. By no later than 1:00 p.m. New York City time on the Business Day prior to each Funding Date (or such other
time as may be agreed to from time to time by the Administrator, the Indenture Trustee and the Administrative Agent), the Administrator shall prepare and deliver to the Issuer, the Indenture Trustee, the Calculation Agent and the Administrative
Agent (and, on any Interim Payment Date, each applicable VFN Noteholder) a certification (each, a “Funding Certification”) containing a list of each Funding Condition and presenting a “yes” or “no” answer
beside each indicating whether such Funding Condition has been satisfied and shall state in writing the amount to be funded on that Funding Date. 

(b) VFN Draws, Discretionary Paydowns and Permanent Reductions. 

With respect to each VFN: 

(i) From time to time, the Collateral Value may increase due to (i) the addition of Mortgage Loans to the Retained MSR
Portfolio or the Sold MSR Portfolio, as applicable, or (ii) increases in the value of the MSRs that underlie the Retained MSR Portfolio and the Sold MSR Portfolio. By no later than 1:00 p.m. New York City time on the Business Day prior to any
Payment Date or Interim Payment Date during the Revolving Period for such VFN on which any applicable Class of
Variable Funding Note ClassNotes is Outstanding, the Administrator, on behalf of the Issuer, may
deliver, or cause to be delivered, to each Noteholder of such Variable Funding Notes and to the Indenture Trustee a Funding Certification and a report (a “VFN Note Balance Adjustment Request”) for such upcoming Funding Date,
requesting such Noteholders to fund a VFN Principal Balance increase on any Class or Classes of VFNs in the amount(s) specified in such request, which request shall instruct the Indenture Trustee to recognize an increase in the related VFN Principal
Balance, but not in excess of the lesser of (x) the related Maximum VFN Principal Balance or (y) the
greatest amount that would not cause a Borrowing Base Deficiency. The VFN Note Balance Adjustment
Request shall also state the amount, if any, of any principal payment to be made on each Outstanding Class of VFNs on the upcoming Interim Payment Date or Payment Date. The amount to be funded shall be based on the change in Collateral Value from
the most recent Interim Payment Date or Payment Date. 
 (ii) If the related Funding Certification indicates that all
Funding Conditions have been met, and the Administrative Agent agrees, in its sole discretion, the applicable VFN Funding Sources shall fund the VFN Principal Balance increase by remitting pro rata (based on each such VFN Funding
Source’s percentage of the Maximum VFN Principal Balance) the amount stated in the request to the Indenture Trustee by 12:00 p.m. (noon) New York City time on the related Funding Date, whereupon the Indenture Trustee shall adjust its records to
reflect the increase of the VFN Principal Balance (which increase shall be the aggregate of the amounts received by the Indenture Trustee from the applicable VFN Funding Sources) by the later of (i) 2:00 p.m. New York City time on such Funding
Date, or (ii) two hours after the receipt by the Indenture Trustee of such funds from the VFN Funding Sources, so long as, after such increase, no Borrowing Base Deficiency will exist, determined based on the VFN Note Balance Adjustment Request
and Determination Date 

  
 33 

 
Report. The Indenture Trustee shall be entitled to rely conclusively on any VFN Note Balance Adjustment Request and the related Determination Date Report and Funding Certification. The Indenture
Trustee shall make available on a password-protected portion of its website to the Issuer or its designee and each applicable VFN Funding Source and any related VFN Noteholder, notice on such Funding Date as reasonably requested by the Issuer of any
increase in the VFN Principal Balance. The Indenture Trustee shall apply and remit any such payment by the VFN Funding Sources toward the payment of the related Funding Amounts as described in Section 4.3(c). If on any Funding Date there
is more than one Series with Outstanding Variable Funding Notes, VFN Draws on such Funding Date shall be made on a pro rata basis among all applicable Outstanding Series of VFNs in their Revolving Periods based on their respective available
Borrowing Capacities, unless otherwise provided in the related Indenture Supplement and any applicable Note Purchase Agreement. If any VFN Funding Source does not fund its share of a requested VFN Draw, one or more other VFN Funding Sources may fund
all or a portion of such draw, but no other VFN Funding Source shall have any obligation to do so. Draws on VFNs of different Classes within the same Series need not be drawn pro rata relative to each other. 

(c) Payment of Funding Amounts. 

(i) Subject to its receipt of a duly executed Funding Certification from the Administrator pursuant to
Section 4.3(a) stating that all Funding Conditions have been satisfied, and approval by the Administrative Agent in its sole discretion, the Indenture Trustee shall remit to the Issuer (or the Issuer’s designee), by the close of
business New York City time on each Funding Date, the amount of the aggregate Funding Amount on such Funding Date without causing the related VFN Principal Balance to exceed either (I) the related Maximum VFN Principal Balance or (II) the
amount that would cause a Borrowing Base Deficiency. 
 (ii) Subject to its receipt of a duly executed Funding Certification
from the Administrator pursuant to Section 4.3(a) indicating that all Funding Conditions have been satisfied, the Indenture Trustee shall remit to the Issuer (or the Issuer’s designee) by the close of business on each Interim
Payment Date or Payment Date occurring at any time when not all Outstanding Notes are in Full Amortization Periods, the amount of the aggregate Funding Amount to be funded on such Interim Payment Date or Payment Date, using any amounts funded by VFN
Funding Sources in respect of such Funding Amount as described in Section 4.3(b). 
 (d) To the extent the Issuance Date for any
Series of Term Notes occurs on a Business Day other than a Payment Date or an Interim Payment Date, the Indenture Trustee shall pay the proceeds of any such issuance in accordance with the flows of funds provided to the Indenture Trustee at the
joint written direction of the Administrator and the Administrative Agent, with the consent of each VFN Noteholder, so long as the Administrator and the Administrative Agent confirm in such direction (x) that the specified flow of funds is
correct; (y) whether there will be an Additional Note Payment made or deemed to have been made in connection with the issuance 

  
 34 

 
of such Series, and after giving effect to such payment, if any, the amount of VFN Principal Balance; and (z) that after giving effect to the payment of amounts in accordance with the
specified flow of funds and the reduction of the VFN Principal Balance, if any, no Borrowing Base Deficiency will exist. No consent or instruction of any Holder of any Series of Term Notes shall be required in connection with payment amounts in
accordance such joint written direction for any Series of Term Notes. 
 Section 4.4. Interim Payment Dates. 

(a) On each Interim Payment Date, the Indenture Trustee shall allocate and pay or deposit (as specified below) all Available Funds held in the
Collection and Funding Account as set forth below, in the following order of priority and in the amounts set forth in the Interim Payment Date Report for such Interim Payment Date: 

(i) pro rata, to (A) to the extent required pursuant to the related Indenture Supplement, the Series Reserve Account for each
Series, the amount required to be deposited therein so that, after giving effect to such deposit, the amount on deposit in such Series Reserve Account shall be equal to the related Series Reserve Required Amount, and (B) to the Expense Reserve
Account, the amount required to be deposited therein so that, after giving effect to such deposit, the amount on deposit in the Expense Reserve Account shall be equal to the related Expense Reserve Required Amount; 

(ii) to be retained in the Collection and Funding Account, the Required Available Funds; 

(iii) at the direction of the Administrator, (A) to pay down the VFN Principal Balance of each Outstanding Class of VFNs pro rata,
based on their respective Note Balances, to remove any Borrowing Base Deficiency on an Interim Payment Date that is an Interim Borrowing Base Payment Date and/or such other amount as may be designated by the Administrator or (B) to reserve cash
in the Collection and Funding Account; and 

(iv) any Net Excess Cash Amount or Eligible Securities to or at the written direction of PMC asthe holder of the Owner Trust Certificate, it being understood that no such Net Excess Cash Amounts may be paid to
PMC under this clause (iv) if, after the payment of such cash amounts, such payment would result in a Borrowing Base Deficiency; provided, that amounts due and owing to the
Owner Trustee or the Indenture Trustee and not previously paid hereunder or under any other Transaction Document shall be paid prior to such payment;
and. 

(b) To the extent provided in the related Indenture Supplement, during the Revolving Period, on each Interim Payment Date, with the prior
written consent of the Administrative Agent (such consent not to be unreasonably withheld), the owner of the Owner Trust Certificate may make Additional Note Payments to a Noteholder of a Series or Class of VFNs. Such Additional Note Payments shall
be applied to pay down the VFN Principal Balance of each Outstanding Class of VFNs pro rata, based on their respective Note Balances, such amount as may be designated by the Administrator. 

  
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 Section 4.5. Payment Dates. 

(a) On each Payment Date, the Indenture Trustee shall transfer all funds on deposit in the Collection and Funding Account for such Payment Date
to the Note Payment Account. On each Payment Date, the Paying Agent shall apply such Available Funds, VFN Series Available Funds or Term Note Series Available Funds, as applicable (and other amounts as specifically noted in clause (a)(1)(iv)
below), in the following order of priority and in the amounts set forth in the Payment Date Report for such Payment Date: 

(1) Prior to commencement of the Full Amortization Period, the Available Funds shall be allocated in the following order of
priority: 
 (i) to the Indenture Trustee (in all its capacities), the Indenture Trustee Fee, to the Owner Trustee and the
Owner Trustee Fee plus, (subject, in the case of expenses and indemnification amounts, to the applicable Expense Limit) all reasonable out-of-pocket expenses and indemnification amounts owed to the Indenture Trustee (in all capacities) and
the Owner Trustee (in all capacities) on such Payment Date; 
 (ii) to each Person (other than the Indenture Trustee or the
Owner Trustee) entitled to receive Fees on such date, the Fees payable to any such Person with respect to the related Collection Period or Interest Accrual Period, plus (subject, in the case of expenses and indemnification amounts, to the applicable
Expense Limit, and allocated pro rata based on the amounts due to each such Person) all reasonable out-of-pocket expenses and indemnification amounts owed for Administrative Expenses of the Issuer, pursuant to the Transaction Documents or
owed or payable by the Indenture Trustee, in its capacity as such, to Fannie Mae or any other Person pursuant to the Transaction Documents with respect to expenses, indemnification amounts, and other amounts to the extent such expenses,
indemnification amounts and other amounts have been invoiced or noticed to the Administrator and the Indenture Trustee, and thereafter from other Available Funds, if necessary; 

(iii) to the Noteholders of each Series of Notes, pro rata based on their respective interest entitlement amounts, the
Interest Payment Amount (for all Series) and the Step-Up Fee (for all Series, if any) for the current Payment Date, for each such Series; provided that if the amount of Available Funds on deposit in the Collection and Funding Account on such
day is insufficient to pay all amounts in respect of any Series pursuant to this clause (iii), the Indenture Trustee shall withdraw from the Series Reserve Account for such Series an amount equal to the lesser of the amount then on deposit in
such Series Reserve Account and the amount of such shortfall for disbursement to the Noteholders of such Series in reduction of such shortfall, with all such amounts paid to a Series under this clause (iii) allocated among the Classes of such
Series as provided in the related Indenture Supplement; 

  
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 (iv) pro rata, to (A) the Series Reserve Account for each
Series, any amount required to be deposited therein so that, after giving effect to such deposit, the amount on deposit in such Series Reserve Account on such day equals the related Series Reserve Required Amount, if applicable, and (B) the
Expense Reserve Account, any amount required to be deposited therein so that, after giving effect to such deposit, the amount on deposit in the Expense Reserve Account on such day equals the Expense Reserve Required Amount; 

(v) the Early Amortization Event Payment Amount to be paid on such Payment Date on each Class of Outstanding Notes that is in
its Early Amortization Period, if applicable; 
 (vi) to the Noteholders of each Series of Term Notes, pro rata, the
Scheduled Principal Payment Amount; 
 (vii) to the extent necessary to avoid any Borrowing Base Deficiency, at the direction
of the Administrator, either (1) to pay down the respective VFN Principal Balances of each Outstanding Class of VFNs, until the earlier of the removal of any Borrowing Base Deficiency with respect to each Outstanding Class of VFNs or reduction
of all VFN Principal Balances to zero, paid pro rata among each VFN Class based on their respective Class Invested Amounts, or (2) to reserve cash in the Collection and Funding Account; 

(viii) pro rata, based on their respective invoiced or reimbursable amounts and without regard to the applicable Expense
Limit, (A) to the Indenture Trustee (in all its capacities) and the Owner Trustee (in all capacities) for any amounts payable to the Indenture Trustee and the Owner Trustee pursuant to this Base Indenture or the Trust Agreement, as applicable,
to the extent not paid under clause (i) above, (B) to the MSR Valuation Agent for any amounts payable to the MSR Valuation Agent pursuant to this Base Indenture to the extent not paid under clause (ii) above, (C) to
the Securities Intermediary for any indemnification amounts owed to the Securities Intermediary as described in Section 4.9; (D) all Administrative Expenses of the Issuer not paid under clause (ii) above; or (E) any
other amounts payable pursuant to this Base Indenture or any other Transaction Document and not paid under clause (ii) above; 

(ix) if and to the extent so directed in writing by the Administrator on behalf of the Issuer, to the Noteholders of each Class
of VFNs, an amount to be applied to pay down the respective VFN Principal Balances equal to the lesser of (A) the amount specified by the Administrator and (B) the amount necessary to reduce the VFN Principal Balances to zero, paid pro
rata among each VFN Class based on their respective Note Balances; and 

  
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 (x) any Net Excess Cash Amount or Eligible Securities to or at the direction
of PMC
asthe holder of the Owner Trust Certificate, to
the extent that following any such payment, there would not be a Borrowing Base Deficiency; provided that amounts due and owing to the Owner Trustee or the Indenture Trustee and not previously paid hereunder or under any other Transaction
Document shall be paid prior to such payment. 
 (2) On and after the commencement of the Full Amortization Period,
all Available Funds for each Series shall be allocated in the following order of priority: 
 (i) to the Indenture Trustee
(in all its capacities), the Indenture Trustee Fee, to the Owner Trustee, the Owner Trustee Fee, and to the Disposition Manager, the Disposition Manager Fee payable on such Payment Date, plus (without regard, in the case of expenses and
indemnification amounts, to the applicable Expense Limit) all reasonable out-of-pocket expenses and indemnification amounts owed to the Indenture Trustee (in all capacities), the Owner Trustee (in all capacities) and the Disposition Manager on such
Payment Date, with respect to expenses and indemnification amounts to the extent such expenses and indemnification amounts have been invoiced or noticed to the Administrator; provided that if the amount of Available Funds is not sufficient to
pay the full amounts owed to the Indenture Trustee pursuant to this clause (i), the Indenture Trustee shall withdraw from the Expense Reserve Account an amount equal to the lesser of the amount then on deposit in the Expense Reserve Account
and the amount of such shortfall for disbursement to the Indenture Trustee in reduction of such shortfall; 
 (ii) to each
Person (other than the Indenture Trustee, the Owner Trustee or the Disposition Manager) entitled to receive Fees on such date, the Fees payable to any such Person with respect to the related Collection Period or Interest Accrual Period, as
applicable, plus (subject, in the case of expenses and indemnification amounts, to the applicable Expense Limit and allocated pro rata based on the amounts due to each such Person) all reasonable out-of-pocket expenses and indemnification
amounts owed for Administrative Expenses of the Issuer with respect to expenses, indemnification amounts and other amounts to the extent such expenses, indemnification amounts and other amounts have been invoiced or noticed to the Administrator and
the Indenture Trustee; 
 (iii) thereafter, the VFN Series Available Funds or the Term Note Series Available Funds, as
applicable, for each Outstanding Series shall be allocated in the following order of priority (or in such other order of priority as specified in the related Indenture Supplement): 

(A) to pay any costs, reasonable out-of-pocket expenses and indemnification amounts owed with respect to any Hedging
Instruments for such Series; 

  
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 (B) to the Noteholders of the related Series of Notes, (a) the related
Cumulative Interest Shortfall Amounts attributable to unpaid Interest Amounts (for all Series) from prior Payment Dates, and (b) the Interest Amounts (for all Series) for the current Payment Date, for each such Class; provided that if
the amount of related VFN Series Available Funds or Term Note Series Available Funds, as applicable, is insufficient for any Class pursuant to this clause (iii)(B), the Indenture Trustee shall withdraw from the Series Reserve Account for such
Class an amount equal to the lesser of the amount then on deposit in such Series Reserve Account and the amount of such shortfall for disbursement to the Noteholders of such Class in reduction of such shortfall, with all such amounts paid to a
Series under this clause (iii)(B) allocated among the Classes of such Series as provided in the related Indenture Supplement; 

(C) to the Noteholders of the related Series of Notes, remaining VFN Series Available Funds or Term Note Series Available
Funds, as applicable, up to the aggregate unpaid Note Balances to reduce Note Balances in the order specified in the related Indenture Supplement, until all such Note Balances have been reduced to zero; 

(D) to the Noteholders of the related Series of Notes, remaining Series Available Funds up to the Default Supplemental Fee and
the Step-Up Fee for the current Payment Date and related shortfalls, for each such Class in the order specified in the related Indenture Supplement; and 

(E) to be allocated to other Series in accordance with the applicable priority of payments for such Series, to the extent the VFN Series Available Funds or the Term Note Series Available Funds, as applicable, for such other Series
were insufficient to make such payments, allocated among such other Series pro rata based on the amounts of their respective shortfalls; 

(iv) out of all remaining VFN Series Available Funds and Term Note Series Available Funds for all Series, pro rata,
based on their respective invoiced or reimbursable amounts and without regard to the applicable Expense Limit, (A) to the MSR Valuation Agent for any amounts payable to the MSR Valuation Agent pursuant to this Base Indenture to the extent not
paid under clause (ii) above, (B) to the Securities Intermediary for any indemnification amounts owed to the Securities Intermediary as described in Section 4.9, and (C) all Administrative Expenses of the Issuer not
paid under clause (ii) above; provided that if the amount of related VFN Series Available Funds or Term Note Series Available Funds, as applicable, is not sufficient to pay the full amounts owed to the MSR Valuation Agent pursuant
to subclause (A) of this clause (iv), the Indenture Trustee shall withdraw from the Expense Reserve Account an amount equal to the lesser of the amount then on deposit in the Expense Reserve Account and the amount of such
shortfall for disbursement to the MSR Valuation Agent in reduction of such shortfall; 
 (v) out of all remaining VFN Series
Available Funds and Term Note Series Available Funds for all Series, to pay any other amounts required to be paid before Net Excess Cash Amounts pursuant to one or more Indenture Supplements; and 

  
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 (vi) out of all remaining VFN Series Available Funds and Term Note Series
Available Funds for all Series, any Net Excess Cash Amount to or at the written direction of PMC asthe holder of the Owner Trust Certificate. 

The amounts payable under clause (i) or (ii) of Section 4.5(a)(2) above shall be paid out of each
Series’ VFN Series Available Funds or Term Note Series Available Funds, as applicable, based on such Series’ Series Allocation Percentage of such amounts payable on such Payment Date. If, on any Payment Date, the VFN Series Available Funds
or Term Note Series Available Funds, as applicable, for any Series is less than the amount payable under clauses (i) and (ii) above out of such Series’ VFN Series Available Funds or Term Note Series Available Funds, as
applicable (any such difference, a “Shortfall Amount”), the amount of such Shortfall Amount shall be paid out of the VFN Series Available Funds or Term Note Series Available Funds, as applicable, for each Series that does not
have a Shortfall Amount, in each case, based on such Series’ relative Series Invested Amount. 
 (b) On each Payment Date, the Indenture
Trustee shall instruct the Paying Agent to pay to, or as directed by, each Noteholder of record on the related Record Date the amount to be paid to such Noteholder in respect of the related Note on such Payment Date by wire transfer if appropriate
instructions are provided to the Indenture Trustee in writing no later than five (5) Business Days prior to the related Record Date, or, if a wire transfer cannot be effected, by check delivered to each Noteholder of record on the related
Record Date at the address listed on the records of the Note Registrar. 
 (c) Notwithstanding anything to the contrary in this Base
Indenture, the Indenture Supplement providing for the issuance of any Series of Notes within which there are one or more Classes of Notes may specify the allocation of payments among such Classes payable pursuant to Section 4.5 hereof,
providing for the subordination of such payments on the subordinated Series or Class, and any such provision in such an Indenture Supplement shall have the same effect as if set forth in this Base Indenture and any related Indenture Supplement, all
to the extent an Issuer Tax Opinion is delivered as to such Series at its issuance. 
 (d) On each Payment Date, the Indenture Trustee shall
make available, in the same manner as described in Section 3.5, a report stating all amounts paid to the Indenture Trustee (in all its capacities) or Citibank (in all its capacities) pursuant to this Section 4.5 on such
Payment Date. 
 (e) To the extent provided in the related Indenture Supplement, during the Revolving Period, on each Payment Date, and with
the prior written consent of the Administrative Agent, the owner of the Owner Trust Certificate may make Additional Note Payments to a Noteholder of a Series or Class of VFNs. Such Additional Note Payments shall be applied to pay down the VFN
Principal Balance of each Outstanding Class of VFNs pro rata, based on their respective Note Balances, such amount as may be designated by the Administrator. 

  
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 Section 4.6. Series Reserve Account; Expense Reserve Account. 

(a) Series Reserve Account. 

(xii) Pursuant to Section 4.1, the Indenture Trustee shall establish and maintain a Series Reserve Account or Trust
Accounts for each Series, each of which shall be an Eligible Account, for the benefit of the Secured Parties of such Series. If any such account loses its status as an Eligible Account, the funds in such account shall be moved to an account that
qualifies as an Eligible Account within thirty (30) days. On or prior to the Issuance Date for each Series, the Issuer shall cause an amount equal to the related Series Reserve Required Amount(s), if applicable, to be deposited into the related
Series Reserve Account(s). Thereafter, on each Payment Date and Interim Payment Date, the Indenture Trustee shall withdraw Available Funds from the Note Payment Account and deposit them into each such Series Reserve Account pursuant to, and to the
extent required by, Section 4.5(a) and the related Indenture Supplement. 
 (xiii) On each Payment Date, an
amount equal to the aggregate of amounts described in clauses (i), (ii) and (iii) of Section 4.5(a)(1) or clauses (i) and (ii) of Section 4.5(a)(2) allocable to the
related Series, as appropriate, and which is not payable out of Available Funds or the related VFN Series Available Funds or Term Note Series Available Funds, as applicable, due to an insufficiency of Available Funds or VFN Series Available Funds or
Term Note Series Available Funds, as applicable, shall be withdrawn from such Series Reserve Account by the Indenture Trustee and remitted to the Note Payment Account for payment in respect of the related Class’ allocable share of such items as
described in Section 4.5(a) or the related Indenture Supplement. On any Payment Date on which amounts are withdrawn from such Series Reserve Account pursuant to Section 4.5(a), no funds shall be withdrawn from the Collection
and Funding Account (or from the Note Payment Account for deposit into the Collection and Funding Account) to pay Funding Amounts or amounts to the Issuer pursuant to Section 4.3 if, after giving effect to the withdrawals described in
the preceding sentences, the amount then on deposit in such Series Reserve Account is less than the related Series Reserve Required Amount, if applicable. All Collections received in the Collection and Funding Account shall be deposited into the
related Series Reserve Accounts until the amount on deposit in each Series Reserve Account equals the related Series Reserve Required Amount, if applicable, as described in Section 4.5 and the related Indenture Supplement. For purposes
of the foregoing, the portion of any such fees and expenses payable under Section 4.5(a)(1)(i) or 
 (ii) shall
equal the related Series Allocation Percentage of the amounts payable under such clause. 
 (xiv) If on any Payment Date the
amount on deposit in a Series Reserve Account is equal to or greater than the aggregate Note Balance for the related Series (after payment on such Payment Date of the amounts described in Section 4.5) the Indenture Trustee will withdraw
from such Series Reserve Account the aggregate Note Balance for such Series and remit it to the Noteholders of the Notes of such Series in reduction of the aggregate Note Balance for all Classes of Notes of such Series that are Outstanding. On the
Stated 

  
 41 

 
Maturity Date for the latest maturing Class in a Series, the balance on deposit in the related Series Reserve Account shall be applied as a principal payment on the Notes of that Series to the
extent necessary to reduce the aggregate Note Balance for that Series to zero. On any Payment Date after payment of principal on the Notes and when no Event of Default has occurred, the Indenture Trustee shall withdraw from each Series Reserve
Account the amount by which the balance of the Series Reserve Account exceeds the related Series Reserve Required Amount, if applicable, and pay such amount to PMC
asthe holder of the Owner Trust Certificate.

 (xv) Amounts held in a Series Reserve Account shall be invested in Permitted Investments to the extent the
Administrator provides written direction to the Indenture Trustee, as provided in Section 4.1; provided, however, if no such direction is provided, all amounts shall remain uninvested. 

(xvi) On any Payment Date, after payment of all amounts pursuant to Section 4.5(a), during the Full Amortization
Period, the Indenture Trustee shall withdraw from each Series Reserve Account the amount by which the amount on deposit in such Series Reserve Account exceeds the related Series Reserve Required Amount, if applicable, and shall apply such excess to
reduce the Note Balances of the Notes of the related Series, pursuant to Section 4.5. Such principal payment shall be made in accordance with the terms and provisions of the related Indenture Supplement. On any Payment Date following the
payment in full of all principal payable in respect of the related Series or Class of Notes, the Indenture Trustee shall withdraw any remaining amounts from the related Series Reserve Account and distribute it to PMC asthe holder of the Owner Trust Certificate. Amounts paid to PMC or its designee pursuant to the preceding sentence shall be released from the Security Interest. 

(xvii) If on any Funding Date, the amount on deposit in one or more Series Reserve Accounts is less than the related Series
Reserve Required Amounts, if applicable, then the Administrator may direct the Indenture Trustee to transfer from the Collection and Funding Account to such Series Reserve Accounts an amount equal to the amount by which the respective Series Reserve
Required Amounts, if applicable, exceed the respective amounts then on deposit in the related Series Reserve Accounts. 

(xviii) Any funds on deposit in any Series Reserve Account are to be applied to make any required payments in respect of the
related Series or Class of Notes only, and no other Series or Class of Notes shall have any interest or claim against such amounts on deposit. Notwithstanding the foregoing, if any Series or Class of Notes is deemed to have an interest or claim on
the funds on deposit in the Series Reserve Account established for another Series, it shall not receive any amounts on deposit in such Series Reserve Account unless and until the Series or Class of Notes related to such Series Reserve Account are
paid in full and are no longer Outstanding. The provisions of this Section 4.6(a)(vii) constitute a “subordination agreement” for purposes of Section 510(a) of the Bankruptcy Code. 

  
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 (b) Expense Reserve Account. 

(i) Pursuant to Section 4.1, the Indenture Trustee shall establish and maintain an Expense Reserve Account, which
shall be an Eligible Account, for the benefit of the Indenture Trustee and the MSR Valuation Agent. If any such account loses its status as an Eligible Account, the funds in such account shall be moved to an account that qualifies as an Eligible
Account within thirty (30) days. On or prior to the Closing Date, the Issuer shall cause an amount equal to the related Expense Reserve Required Amount to be deposited into the Expense Reserve Account. Thereafter, on each Payment Date and
Interim Payment Date, the Indenture Trustee shall withdraw Available Funds from the Note Payment Account and deposit them into the Expense Reserve Account pursuant to, and to the extent required by Section 4.5(a). 

(ii) On each Payment Date, an amount equal to the aggregate of amounts described in clause (i) of
Section 4.5(a)(2) which is not payable out of Series Available Funds due to an insufficiency of Series Available Funds shall be withdrawn from the Expense Reserve Account by the Indenture Trustee and remitted to the Note Payment Account
for payment in respect of the related Class’ allocable share of such items as described in Section 4.5(a). On any Payment Date on which amounts are withdrawn from the Expense Reserve Account pursuant to Section 4.5(a),
no funds shall be withdrawn from the Collection and Funding Account (or from the Note Payment Account for deposit into the Collection and Funding Account) to pay Funding Amounts or amounts to the Issuer pursuant to Section 4.3 if, after
giving effect to the withdrawals described in the preceding sentences, the amount then on deposit in the Expense Reserve Account is less than the Expense Reserve Required Amount. All Collections received in the Collection and Funding Account shall
be deposited into the Expense Reserve Account until the amount on deposit in the Expense Reserve Account equals the Expense Reserve Required Amount, as described in Section 4.5. 

(iii) Amounts held in the Expense Reserve Account shall be invested in Permitted Investments at the direction of the
Administrator as provided in Section 4.1. 
 (iv) On any Payment Date, after payment of all amounts pursuant to
Section 4.5(a), during the Full Amortization Period, the Indenture Trustee shall withdraw from the Expense Reserve Account the amount by which the amount on deposit in the Expense Reserve Account exceeds the Expense Reserve Required
Amount, if applicable, and shall apply such excess to reduce the Note Balances of the Notes of all Series, pursuant to Section 4.5. Such principal payment shall be made in accordance with the terms and provisions of the related Indenture
Supplement. On any Payment Date following the payment in full of all principal payable in respect of all Series or Classes of Notes and the payment in full of all amounts payable to the Indenture Trustee and the MSR Valuation Agent, the Indenture
Trustee shall withdraw any remaining amounts from the Expense Reserve Account and distribute it to PMC asthe holder of the Owner Trust Certificate. Amounts paid to PMC or its designee pursuant to the preceding sentence shall be released from the Security Interest.

 (v) If on any Funding Date, the amount on deposit in the Expense Reserve Accounts is less than the Expense Reserve
Required Amount, if applicable, then the Administrator may direct the Indenture Trustee to transfer from the Collection and Funding Account to the Expense Reserve Account an amount equal to the amount by which the Expense Reserve Required Amount
exceeds the amounts then on deposit in the Expense Reserve Account. 

  
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 Section 4.7. Collection and Funding Account; Eligible Securities Account. 

Pursuant to Section 4.1, the Indenture Trustee shall establish and maintain the Collection and Funding Account and the Eligible
Securities Account, each of which shall be an Eligible Account, for the benefit of the Secured Parties. If any such account loses its status as an Eligible Account, the funds or securities, as applicable, in such account shall be moved to an account
that qualifies as an Eligible Account within thirty (30) days. The Indenture Trustee shall deposit and withdraw Available Funds from the Collection and Funding Account pursuant to, and to the extent required by Section 4.5. 

Amounts held in the Collection and Funding Account shall be invested in Permitted Investments at the written direction of the Administrator as
provided in Section 4.1; provided, however, if no such direction is provided, all amounts shall remain uninvested. 

Section 4.8. Note Payment Account. 

(a) Pursuant to Section 4.1, the Indenture Trustee shall establish and maintain the Note Payment Account, which shall be an
Eligible Account, for the benefit of the Secured Parties. If the Note Payment Account loses its status as an Eligible Account, the funds in such account shall be moved to an account that qualifies as an Eligible Account within thirty (30) days.
The Note Payment Account shall be funded to the extent that (i) the Issuer shall remit to the Indenture Trustee the Redemption Amount for a Class of Notes pursuant to Section 13.1, (ii) the Indenture Trustee shall remit thereto
any Available Funds from the Collection and Funding Account pursuant to Section 4.2(b), (iii) the Indenture Trustee shall transfer amounts from an applicable Series Reserve Account pursuant to, and to the extent required by,
Section 4.6, and (iv) the Indenture Trustee shall transfer amounts from the Expense Reserve Account pursuant to, and to the extent required by, Section 4.6. 

(b) On each Payment Date, an amount equal to the aggregate of amounts described in Section 4.5(a) shall be withdrawn from the Note
Payment Account by the Indenture Trustee and remitted to the Noteholders and other Persons or accounts described therein for payment as described in that Section, and upon payments of all sums payable hereunder as described in
Section 4.5(a), as applicable, any remaining amounts then on deposit in the Note Payment Account shall be released from the Security Interest and paid to PMC
or its designee unless it would cause a Borrowing Base Deficiency. 
 (c)
Amounts held in the Note Payment Account may be invested in Permitted Investments at the direction of the Administrator as provided in Section 4.1. 

  
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 Section 4.9. Securities Accounts. 

(a) Securities Intermediary. The Issuer and the Indenture Trustee hereby appoint Citibank, as Securities Intermediary with respect to
the Trust Accounts. The Security Entitlements and all Financial Assets credited to the Trust Accounts, including all amounts, securities, investments, Financial Assets, investment property and other property from time to time deposited in or
credited to such account and all proceeds thereof, held from time to time in the Trust Accounts will continue to be held by the Securities Intermediary for the Indenture Trustee for the benefit of the Secured Parties. Upon the termination of this
Base Indenture, the Indenture Trustee shall inform the Securities Intermediary of such termination. By acceptance of their Notes or interests therein, the Noteholders and all beneficial owners of Notes shall be deemed to have appointed Citibank, as
Securities Intermediary. Citibank hereby accepts such appointment as Securities Intermediary. 
 (i) With respect to any
portion of the Trust Estate that is credited to the Trust Accounts, the Securities Intermediary agrees that: 
 (A) with
respect to any portion of the Trust Estate that is held in deposit accounts, each such deposit account shall be subject to the security interest granted pursuant to this Base Indenture, and the Securities Intermediary shall comply with instructions
originated by the Indenture Trustee directing dispositions of funds in the deposit accounts without further consent of the Issuer and otherwise shall be subject to the exclusive custody and control of the Securities Intermediary, and the Securities
Intermediary shall have sole signature authority with respect thereto; 
 (B) any and all property credited to the Trust
Accounts shall be treated by the Securities Intermediary as Financial Assets; 
 (C) any portion of the Trust Estate that
is, or is treated as, a Financial Asset shall be physically delivered (accompanied by any required endorsements) to, or credited to an account in the name of, the Securities Intermediary or other eligible institution maintaining any Trust Account in
accordance with the Securities Intermediary’s customary procedures such that the Securities Intermediary or such other institution establishes a Security Entitlement in favor of the Indenture Trustee with respect thereto over which the
Securities Intermediary or such other institution has “control” (as defined in the UCC); and 
 (D) it will use
reasonable efforts to promptly notify the Indenture Trustee and the Issuer if any other Person claims that it has a property interest in a Financial Asset in any Trust Account and that it is a violation of that Person’s rights for anyone else
to hold, transfer or deal with such Financial Asset. 
 (ii) The Securities Intermediary hereby confirms that (A) each
Trust Account is an account to which Financial Assets are or may be credited, and the Securities Intermediary shall, subject to the terms of this Base Indenture treat the Indenture Trustee as entitled to exercise the rights that comprise any
Financial Asset credited to any Trust Account, (B) any portion of the Trust Estate in respect of any Trust Account will be 

  
 45 

 
promptly credited by the Securities Intermediary to such account, and (C) all securities or other property underlying any Financial Assets credited to any Trust Account shall be registered
in the name of the Securities Intermediary, endorsed to the Securities Intermediary or in blank or credited to another securities account maintained in the name of the Securities Intermediary, and in no case will any Financial Asset credited to any
Trust Account be registered in the name of the Issuer or the Administrator, payable to the order of the Issuer or the Administrator or specially endorsed to any of such Persons. 

(iii) If at any time the Securities Intermediary shall receive an Entitlement Order from the Indenture Trustee directing
transfer or redemption of any Financial Asset relating to any Trust Account, the Securities Intermediary shall comply with such Entitlement Order without further consent by the Issuer or the Administrator or any other Person. If at any time the
Indenture Trustee notifies the Securities Intermediary in writing that this Base Indenture has been discharged in accordance herewith, then thereafter if the Securities Intermediary shall receive any order from the Issuer directing transfer or
redemption of any Financial Asset relating to any Trust Account, the Securities Intermediary shall comply with such Entitlement Order without further consent by the Indenture Trustee or any other Person. 

(iv) In the event that the Securities Intermediary has or subsequently obtains by agreement, operation of law or otherwise a
security interest in any Trust Account or any Financial Asset or Security Entitlement credited thereto, the Securities Intermediary hereby agrees that such security interest shall be subordinate to the security interest of the Indenture Trustee. The
Financial Assets and Security Entitlements credited to the Trust Accounts will not be subject to deduction, set-off, banker’s lien, or any other right in favor of any Person other than (i) the Indenture Trustee in the case of the Trust
Accounts and (ii) the Owner Trustee Lien. 
 (v) There are no other agreements entered into between the Securities
Intermediary in such capacity, and the Securities Intermediary agrees that it will not enter into any agreement with, the Issuer, the Administrator, or any other Person (other than the Indenture Trustee) with respect to any Trust Account. In the
event of any conflict between this Base Indenture (or any provision of this Base Indenture) and any other agreement now existing or hereafter entered into, the terms of this Base Indenture shall prevail. 

(vi) The rights and powers granted herein to the Indenture Trustee have been granted in order to perfect its interest in the
Trust Accounts and the Security Entitlements to the Financial Assets credited thereto, and are powers coupled with an interest and will not be affected by the bankruptcy of the Issuer, the Administrator or PMC nor by the lapse of time. The
obligations of the Securities Intermediary hereunder shall continue in effect until the interest of the Indenture Trustee in the Trust Accounts and in such Security Entitlements, has been terminated pursuant to the terms of this Base Indenture and
the Indenture Trustee has notified the Securities Intermediary of such termination in writing. 

  
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 (b) Definitions; Choice of Law. Capitalized terms used in this
Section 4.9 and not defined herein shall have the meanings assigned to such terms in the New York UCC. For purposes of Section 8-110(e) of the New York UCC, the “securities intermediary’s jurisdiction” shall be the
State of New York. The Securities Intermediary, the Administrator and the Issuer agree that they will not change the applicable law in force with respect to issues referred to in Article 2(1) of the Hague Securities Convention to a state other than
the State of New York. 
 (c) Limitation on Liability. None of the Securities Intermediary or any director, officer, employee or agent
of the Securities Intermediary shall be under any liability to the Indenture Trustee or the Noteholders for any action taken, or not taken, in good faith pursuant to this Base Indenture, or for errors in judgment; provided, however,
that this provision shall not protect the Securities Intermediary against any liability to the Indenture Trustee or the Noteholders which would otherwise be imposed by reason of the Securities Intermediary’s willful misconduct, bad faith or
negligence in the performance of its obligations or duties hereunder. The Securities Intermediary and any director, officer, employee or agent of the Securities Intermediary may rely in good faith on any document of any kind which, on its face, is
properly executed and submitted by any Person respecting any matters arising hereunder. The Securities Intermediary shall be under no duty to inquire into or investigate the validity, accuracy or content of such document. 

(d) Representations, Warranties and Covenants of the Securities Intermediary. The Securities Intermediary represents and warrants that,
as of the date hereof, the Securities Intermediary has a physical office in the United States and is engaged in a business or other regular activity of maintaining securities accounts. The Securities Intermediary agrees that, at all times while this
Indenture is in effect, it shall maintain a physical office in the United States that satisfies the criteria set forth in Article 4(1)(a) or (b) of the Hague Securities Convention. 

Section 4.10. Notice of Adverse Claims. 

Except for the claims and interests of the Secured Parties in the Trust Accounts, the Securities Intermediary has no actual knowledge of any
claim to, or interest in, any Trust Account or in any financial asset credited thereto. If any Person asserts any Adverse Claim (including any writ, garnishment, judgment, warrant of attachment, execution or similar process) against any Trust
Account or in any financial asset carried therein of which a Responsible Officer of the Securities Intermediary has actual knowledge, the Securities Intermediary will promptly notify the Noteholders, the Indenture Trustee and the Issuer thereof.

 Section 4.11. No Gross Up. 
 No
Person, including the Issuer, shall be obligated to pay any additional amounts to the Noteholders or Note Owners as a result of any withholding or deduction for, or on account of, any present or future taxes, duties, assessments or governmental
charges. 
 Section 4.12. Advance Rate Trigger Event Trigger Period, Early Amortization Period and Full Amortization Period. 

Upon the occurrence of an Advance Rate Trigger Event, the Advance Rate Trigger Event shall continue, unless, the Majority Noteholders for each
Series of Variable Funding Notes that are Outstanding, plus the Administrative Agent, notify the Indenture Trustee and the Disposition Manager that either (i) they have waived the occurrence of such Advance Rate Trigger Event or (ii) they have
acknowledged that the Advance Rate Trigger Event has been cured for each Outstanding Series of Variable Funding Notes that is still in its Revolving Period. 

  
 47 

 Upon the occurrence of an Early Amortization Event, the Revolving Period for all Classes and
Series of the Notes shall automatically terminate and the Early Amortization Period for all Outstanding Notes shall commence without further action on the part of any Person, unless, together, the Majority Noteholders of all Outstanding Notes that
are not Variable Funding Notes and the Majority Noteholders for each Series of Variable Funding Notes that are Outstanding, plus the Administrative Agent, notify the Indenture Trustee and the Disposition Manager that either (i) they have waived
the occurrence of such Early Amortization Event and consent to the continuation of the Revolving Period for each Outstanding Series that is still in its Revolving Period or (ii) they acknowledge that the Early Amortization Event has been cured
and consent to the continuation of the Revolving Period for each Outstanding Series that is still in its Revolving Period. 
 Upon the
occurrence of an Event of Default, the Revolving Period for all Classes and Series of the Notes shall automatically terminate and the Full Amortization Period for all Outstanding Notes shall commence without further action on the part of any Person,
unless, together, the Majority Noteholders of all Outstanding Notes that are not Variable Funding Notes and the Majority Noteholders for each Series of Variable Funding Notes that are Outstanding, plus the Administrative Agent, notify the Indenture
Trustee and the Disposition Manager that either (i) they have waived the occurrence of such Event of Default and consent to the continuation of the Revolving Period for each Outstanding Series that is still in its Revolving Period or
(ii) they acknowledge that the Event of Default has been cured and consent to the continuation of the Revolving Period for each Outstanding Series that is still in its Revolving Period; provided, upon waiver or cure of an Event of
Default and continuation of a Revolving Period, any hourly fees incurred by the Disposition Manager during any Default Period shall be paid on the immediately following Payment Date pursuant to Section 4.5(a)(1)(ii). 

The obligation of the Issuer to pay or reserve any Default Supplemental Fee, Step-Up Fee, Cumulative Interest Shortfall Amount, Cumulative
Default Supplemental Fee Shortfall Amount or Cumulative Step-Up Fee Shortfall Amount shall begin only upon the occurrence of an Early Amortization Event or Event of Default, as applicable, and commencement of the Early Amortization Period or Full
Amortization Period, as applicable, as described in this Section 4.12. 
 Article V 

Note Forms 
 Section 5.1. Forms
Generally. 
 The Notes will have such appropriate insertions, omissions, substitutions and other variations as are required or permitted
by this Base Indenture or the applicable Indenture Supplement and may have such letters, numbers or other marks of identification and such legends or endorsements placed thereon, as may be required to comply with applicable laws or regulations or
with the rules of any securities exchange, or as may, consistently herewith, be determined by the Issuer, as evidenced by the Issuer’s execution of such Notes. Any portion of the text of any Note may be set forth on the reverse thereof, with an
appropriate reference thereto on the face of the Note. 

  
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 The Definitive Notes and the Global Notes representing the Book-Entry Notes will be
typewritten, printed, lithographed or engraved or produced by any combination of these methods (with or without steel engraved borders) or may be produced in any other manner, all as determined by the Issuer, as evidenced by the Issuer’s
execution of such Notes. 
 Section 5.2. Forms of Notes. 

(a) Forms Generally. Subject to Section 5.2(b), each Note will be in one of the forms approved from time to time by or
pursuant to this Base Indenture. Without limiting the generality of the foregoing, the Indenture Supplement for any Series of Notes shall specify whether the Notes of such Series, or of any Class within such Series, shall be issuable as Definitive
Notes or as Book- Entry Notes. 
 (b) Issuer Certificate. Before the delivery of a Note to the Indenture Trustee for authentication in
any form approved by or pursuant to an Issuer Certificate, the Issuer will deliver to the Indenture Trustee the Issuer Certificate by or pursuant to which such form of Note has been approved, which Issuer Certificate will have attached thereto a
true and correct copy of the form of Note which has been approved thereby. Any form of Note approved by or pursuant to an Issuer Certificate must be acceptable as to form to the Indenture Trustee, such acceptance to be evidenced by the Indenture
Trustee’s authentication of Notes in that form of a Certificate of Authentication signed by an Indenture Trustee Authorized Officer and delivered to the Issuer. 

(c) (i) Rule 144A Notes. Notes sold by the Issuer (other than Regulation S Notes) shall bear a legend generally to the effect that
resales of such Notes or interests therein may be made only to qualified institutional buyers in transactions exempt from the registration requirements of the 1933 Act in reliance on Rule 144A (“each, a “Rule 144A Note”)
and shall be issued initially in the form of (A) one or more permanent Global Notes in fully registered form (each, a “Rule 144A Global Note”), substantially in the form attached hereto as Exhibit A-1 or (B) one or
more permanent Definitive Notes in fully registered form (each, a “Rule 144A Definitive Note”), substantially in the form attached hereto as Exhibit A-2. The aggregate principal amounts of the Rule 144A Global Notes or
Rule 144A Definitive Notes may from time to time be increased or decreased by adjustments made on the records of the Indenture Trustee, or the Depository or its nominee, as the case may be, as hereinafter provided. 

(ii) Regulation S Notes. Notes sold in offshore transactions in reliance on Regulation S (each, a “Regulation
S Note”) shall be issued in the form of (A) one or more permanent Global Notes in fully registered form (each, a “Regulation S Global Note”), substantially in the form attached hereto as Exhibit A-3
or (B) one or more permanent Definitive Notes in fully registered form (each, a “Regulation S Definitive Note”), substantially in the form attached hereto as Exhibit A-4. The aggregate principal amounts of the
Regulation S Global Notes or the Regulation S Definitive Notes may from time to time be increased or decreased by adjustments made on the records of the Indenture Trustee or the Depository or its nominee, as the case may be, as hereinafter provided.

  
 49 

 Section 5.3. Reserved. 

Section 5.4. Book-Entry Notes. 
 (a)
Issuance of Book-Entry Notes. If the Issuer establishes pursuant to Sections 5.2 and 6.1 that the Notes of a particular Series or Class are to be issued as Book-Entry Notes, then the Issuer will execute and the Indenture Trustee
or its agent will, in accordance with Section 6.3 and with the Issuer Certificate delivered to the Indenture Trustee or its agent under Section 6.3, authenticate and deliver, one or more definitive Global Notes, which, unless
otherwise provided in the applicable Indenture Supplement (1) will represent, and will be denominated in an amount equal to the aggregate, Initial Note Balance of the Outstanding Notes of such Series or Class to be represented by such Global
Note or Notes, or such portion thereof as the Issuer will specify in an Issuer Certificate, (2) will be registered in the name of the Depository for such Global Note or Notes or its nominee, (3) will be delivered by the Indenture Trustee
or its agent to the Depository or pursuant to the Depository’s instruction (and which may be held by the Indenture Trustee as custodian for the Depository, if so specified in the related Indenture Supplement or Depository Agreement),
(4) if applicable, will bear a legend substantially to the following effect: “Unless this Note is presented by an authorized representative of The Depository Trust Company, a New York corporation (“DTC”), to the
Issuer or its agent for registration of transfer, exchange or payment, and any Note issued is registered in the name of Cede & Co. or in such other name as is requested by an authorized representative of DTC (and any payment is made to
Cede & Co. or to such other entity as is requested by an authorized representative of DTC), any transfer, pledge or other use hereof for value or otherwise by or to any person is wrongful inasmuch as the registered owner hereof,
Cede & Co., has an interest herein” and (5) may bear such other legend as the Issuer, upon advice of counsel, deems to be applicable. 

(b) The Note Registrar and the Indenture Trustee may deal with the Depository as the sole Noteholder of the Book-Entry Notes for all purposes
of this Indenture and will not be obligated to the Note Owners, except as stated in Section 14.11. 
 (c) The rights of the Note owners
may be exercised only through the Depository and will be limited to those established by law and agreements between the Note Owners and the Depository and/or its participants under the Depository Agreement. 

(d) If this Section 5.4(a) conflicts with other terms of this Indenture, this Section 5.4(a) will control. 

(e) The Depository will make book-entry transfers among its participants and receive and transmit payments of principal of and interest on the
Book-Entry Notes to the participants. 
 (f) The Indenture Trustee, the Note Registrar, and the Paying Agent shall have no responsibility or
liability for any actions taken or not taken by the Depository. 
 (g) If this Indenture requires or permits actions to be taken based on
instructions or directions of the Noteholders of a stated percentage of Note Balance of the Notes, the Depository will be deemed to represent those Noteholders only if it has received instructions to that effect form Note Owners and/or the
Depository’s participants owning or representing, the required percentage of the beneficial interest of the Notes and has delivered the instructions to the Indenture Trustee. 

  
 50 

 (h) The Issuer in issuing Notes may use “CUSIP” numbers (if then generally in
use), and, if so, the Indenture Trustee shall use “CUSIP” numbers in notices of redemption as a convenience to Noteholders; provided that any such notice may state that no representation is made as to the correctness of such numbers either
as printed on the Notes or as contained in any notice of a redemption and that reliance may be placed only on the other identification numbers printed on the Notes, and any such redemption shall not be affected by any defect in or omission of such
numbers. The Issuer will promptly notify the Indenture Trustee in writing of any change in the “CUSIP” numbers. 
 (i) Transfers
of Global Notes only to Depository Nominees. Notwithstanding any other provisions of this Section 5.4 or of Section 6.5, and subject to the provisions of paragraph (c) below, unless the terms of a Global Note or the
applicable Indenture Supplement expressly permit such Global Note to be exchanged in whole or in part for individual Notes, a Global Note may be transferred, in whole but not in part and in the manner provided in Section 6.5, only to a
nominee of the Depository for such Global Note, or to the Depository, or a successor Depository for such Global Note selected or approved by the Issuer, or to a nominee of such successor Depository. 

(j) Limited Right to Receive Definitive Notes. Except under the limited circumstances described below, Note Owners of beneficial
interests in Global Notes will not be entitled to receive Definitive Notes. With respect to Notes issued within the United States, unless otherwise specified in the applicable Indenture Supplement, or with respect to Notes issued outside the United
States, if specified in the applicable Indenture Supplement: 
 (i) If at any time the Depository for a Global Note notifies
the Issuer that it is unwilling or unable to continue to act as Depository for such Global Note or if at any time the Depository for the Notes for such Series or Class ceases to be a Clearing Corporation, the Issuer will appoint a successor
Depository with respect to such Global Note. If a successor Depository for such Global Note is not appointed by the Issuer within ninety (90) days after the Issuer receives such notice or becomes aware of such ineligibility, the Issuer will
execute, and the Indenture Trustee or its agent will, in accordance with Section 6.3 and with the Issuer Certificate delivered to the Indenture Trustee or its agent under Section 6.3 requesting the authentication and delivery
of individual Notes of such Series or Class in exchange for such Global Note, will authenticate and deliver, individual Notes of such Series or Class of like tenor and terms in an aggregate Initial Note Balance equal to the Initial Note Balance of
the Global Note in exchange for such Global Note. 
 (ii) The Issuer may at any time and in its sole discretion determine
that the Notes of any Series or Class or portion thereof issued or issuable in the form of one or more Global Notes will no longer be represented by such Global Note or Notes. In such event the Issuer will execute, and the Indenture Trustee or its
agent in accordance with Section 6.3 and with the Issuer Certificate delivered to the Indenture Trustee or its agent under 

  
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Section 6.3 for the authentication and delivery of individual Notes of such Series or Class in exchange in whole or in part for such Global Note, will authenticate and deliver
individual Notes of such Series or Class of like tenor and terms in definitive form in an aggregate Initial Note Balance equal to the Initial Note Balance of such Global Note or Notes representing such Series or Class or portion thereof in exchange
for such Global Note or Notes. 
 (iii) If specified by the Issuer pursuant to Sections 5.2 and 6.1 with
respect to Notes issued or issuable in the form of a Global Note, the Depository for such Global Note may surrender such Global Note in exchange in whole or in part for individual Notes of such Series or Class of like tenor and terms in definitive
form on such terms as are acceptable to the Issuer and such Depository. Thereupon the Issuer will execute, and the Indenture Trustee or its agent will, in accordance with Section 6.3 and with the Issuer Certificate delivered to the
Indenture Trustee or its agent under Section 6.3, authenticate and deliver, without service charge, (A) to each Person specified by such Depository a new Note or Notes of the same Series or Class of like tenor and terms and of any
authorized denomination as requested by such Person in an aggregate Initial Note Balance equal to the Initial Note Balance of the portion of the Global Note or Notes specified by the Depository and in exchange for such Person’s beneficial
interest in the Global Note; and (B) to such Depository a new Global Note of like tenor and terms and in an authorized denomination equal to the difference, if any, between the Initial Note Balance of the surrendered Global Note and the aggregate
Initial Note Balance of Notes delivered to the Noteholders thereof. 
 (iv) If any Event of Default has occurred with respect
to such Global Notes, and Owners of Notes evidencing more than 50% of the Global Notes of that Series or Class (measured by Voting Interests) advise the Indenture Trustee and the Depository that a Global Note is no longer in the best interest of the
Note Owners, the Owners of Global Notes of that Series or Class may exchange their beneficial interests in such Notes for Definitive Notes in accordance with the exchange provisions herein. 

(v) In any exchange provided for in any of the preceding four paragraphs, the Issuer will execute and the Indenture Trustee or
its agent will, in accordance with Section 6.3 and with the Issuer Certificate delivered to the Indenture Trustee or its agent under Section 6.3, authenticate and deliver Definitive Notes in definitive registered form in
authorized denominations. Upon the exchange of the entire Initial Note Balance of a Global Note for Definitive Notes, such Global Note will be canceled by the Indenture Trustee or its agent. Except as provided in the preceding paragraphs, Notes
issued in exchange for a Global Note pursuant to this Section will be registered in such names and in such authorized denominations as the Depository for such Global Note, pursuant to instructions from its direct or indirect participants or
otherwise, will instruct the Indenture Trustee or the Note Registrar. The Indenture Trustee or the Note Registrar will deliver such Notes to the Persons in whose names such Notes are so registered. 

  
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 Section 5.5. Beneficial Ownership of Global Notes. 

Until Definitive Notes have been issued to the applicable Noteholders to replace any Global Notes with respect to a Series or Class pursuant to
Section 5.4 or as otherwise specified in any applicable Indenture Supplement: 
 (a) the Issuer and the Indenture Trustee may
deal with the applicable clearing agency or Depository and the Depository Participants for all purposes (including the making of payments) as the authorized representatives of the respective Note Owners; and 

(b) the rights of the respective Note Owners will be exercised only through the applicable Depository and the Depository Participants and will
be limited to those established by law and agreements between such Note Owners and the Depository and/or the Depository Participants. Pursuant to the operating rules of the applicable Depository, unless and until Definitive Notes are issued pursuant
to Section 5.4, the Depository will make book-entry transfers among the Depository Participants and receive and transmit payments of principal and interest on the related Notes to such Depository Participants. 

For purposes of any provision of this Base Indenture requiring or permitting actions with the consent of, or at the direction of, Noteholders
evidencing a specified percentage of the Note Balance of Outstanding Notes, such direction or consent may be given by Note Owners (acting through the Depository and the Depository Participants) owning interests in or security entitlements to Notes
evidencing the requisite percentage of principal amount of Notes. 
 Section 5.6. Notices to Depository. 

Whenever any notice or other communication is required to be given to Noteholders with respect to which Book-Entry Notes have been issued,
unless and until Definitive Notes will have been issued to the related Note Owners, the Indenture Trustee will give all such notices and communications to the applicable Depository, and shall have no obligation to report directly to such Note
Owners. 
 Article VI 

The Notes 
 Section 6.1. General
Provisions; Notes Issuable in Series; Terms of a Series or Class Specified in an Indenture Supplement. 
 (a) Amount Unlimited.
The aggregate Initial Note Balance of Notes which may be authenticated and delivered and Outstanding under this Base Indenture is not limited. 

(b) Series and Classes. The Notes may be issued in one or more Series or Classes up to an aggregate Note Balance for such Series or
Class as from time to time may be authorized by the Issuer. All Notes of each Series or Class under this Base Indenture will in all respects be equally and ratably entitled to the benefits hereof with respect to such Series or Class without
preference, priority or distinction on account of (1) the actual time of the authentication and delivery, or (2) Stated Maturity Date of the Notes of such Series or Class, except as specified in the applicable Indenture Supplement for such
Series or Class of Notes. 

  
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 Each Note issued must be part of a Series of Notes for purposes of allocations pursuant to
the related Indenture Supplement. A Series of Notes is created pursuant to an Indenture Supplement. A Class of Notes is created pursuant to an Indenture Supplement for the applicable Series. 

Each Series and Class of Notes will be secured by the Trust Estate. 

Each Series of Notes may, but need not be, subdivided into multiple Classes. Notes belonging to a Class in any Series may be entitled to
specified payment priorities over other Classes of Notes in that Series. 
 (c) Provisions Required in Indenture Supplement. Before
the initial issuance of Notes of each Series, there shall also be established in or pursuant to an Indenture Supplement provision for: 

(i) the Series designation; 

(ii) the Initial Note Balance of such Series of Notes and of each Class, if any, within such Series, and the Maximum VFN
Principal Balance for such Series (if it is a Series or Class of Variable Funding Notes); 
 (iii) whether such Notes are
subdivided into Classes; 
 (iv) whether such Series of Notes are Term Notes, Variable Funding Notes or a combination
thereof; 
 (v) the Note Interest Rate at which such Series of Notes or each related Class of Notes will bear interest, if
any, or the formula or index on which such rate will be determined, including all relevant definitions, and the date from which interest will accrue; 

(vi) the Stated Maturity Date for such Series of Notes or each related Class of Notes; 

(vii) if applicable, the appointment by the Indenture Trustee of an Authenticating Agent in one or more places other than the
location of the office of the Indenture Trustee with power to act on behalf of the Indenture Trustee and subject to its direction in the authentication and delivery of such Notes in connection with such transactions as will be specified in the
provisions of this Base Indenture or in or pursuant to the applicable Indenture Supplement creating such Series; 
 (viii) if
such Series of Notes or any related Class will be issued in whole or in part in the form of a Global Note or Global Notes, the terms and conditions, if any, in addition to those set forth in Section 5.4, upon which such Global Note or
Global Notes may be exchanged in whole or in part for other Definitive Notes; and the Depository for such Global Note or Global Notes (if other than the Depository specified in Section 1.1); 

  
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 (ix) the subordination, if any, of such Series of Notes or any related
Class(es) to any other Notes of any other Series or of any other Class within the same Series; 
 (x) the Record Date for any
Payment Date of such Series of Notes or any related Class, if different from the last day of the month before the related Payment Date; 

(xi) any Default Supplemental Fee Rate, if applicable; 

(xii) any Step-Up Fee Rate, if applicable; 

(xiii) if applicable, under what conditions any additional amounts will be payable to Noteholders of the Notes of such Series;

 (xiv) the Administrative Agent for such Series of Notes; 

(xv) any other terms of such Notes as stated in the related Indenture Supplement; and 

(xvi) all upon such terms as may be determined in or pursuant to an Indenture Supplement with respect to such Series or Class
of Notes. 
 (d) Forms of Series or Classes of Notes. The form of the Notes of each Series or Class will be established pursuant to
the provisions of this Base Indenture and the related Indenture Supplement creating such Series or Class. The Notes of each Series or Class will be distinguished from the Notes of each other Series or Class in such manner, reasonably satisfactory to
the Indenture Trustee, as the Issuer may determine. 
 Section 6.2. Denominations. 

Except as provided in Section 6.1(b), the Notes of each Series or Class will be issuable in such denominations and currency as will
be provided in the provisions of this Base Indenture or in or pursuant to the applicable Indenture Supplement. In the absence of any such provisions with respect to the Term Notes of any Series or Class, the Term Notes of that Series or Class will
be issued in minimum denominations of $100,000 and integral multiples of $1,000 in excess thereof. In the absence of any such provisions with respect to the Variable Funding Notes of any Series or Class, the Variable Funding Notes of that Series or
Class will be issued in accordance with the terms of the related Indenture Supplement. 
 Section 6.3. Execution, Authentication and Delivery and
Dating. 
 (a) The Notes will be executed on behalf of the Issuer by an Issuer Authorized Officer, by manual or facsimile signature. 

(b) Notes bearing the manual or facsimile signatures of individuals who were at any time an Issuer Authorized Officer will bind the Issuer,
notwithstanding that such individuals or any of them have ceased to hold such offices before the authentication and delivery of such Notes or did not hold such offices at the date of issuance of such Notes. 

  
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 (c) At any time and from time to time after the execution and delivery of this Base
Indenture, the Issuer may deliver Notes executed by the Issuer to the Indenture Trustee for authentication; and the Indenture Trustee will, upon delivery of an Issuer Certificate, authenticate and deliver such Notes as provided in this Base
Indenture and not otherwise. 
 (d) Before any such authentication and delivery, the Indenture Trustee will be entitled to receive, in
addition to any Officer’s Certificate and Opinion of Counsel required to be furnished to the Indenture Trustee pursuant to Section 1.3, the Issuer Certificate and any other opinion or certificate relating to the issuance of the
Series or Class of Notes required to be furnished pursuant to Section 5.2 or Section 6.10. 
 (e) The Indenture
Trustee will not be required to authenticate such Notes if the issue thereof will adversely affect the Indenture Trustee’s own rights, duties or immunities under the Notes and this Base Indenture. 

(f) Unless otherwise provided in the form of Note for any Series or Class, all Notes will be dated the date of their authentication. 

(g) No Note will be entitled to any benefit under this Base Indenture or be valid or obligatory for any purpose unless there appears on such
Note a Certificate of Authentication substantially in the form provided for herein executed by the Indenture Trustee by manual signature of an authorized signatory, and such certificate upon any Note will be conclusive evidence, and the only
evidence, that such Note has been duly authenticated and delivered hereunder. 
 Section 6.4. Temporary Notes. 

(a) Pending the preparation of definitive Notes of any Series or Class, the Issuer may execute, and, upon receipt of the documents required by
Section 6.3, together with an Issuer’s Certificate, the Indenture Trustee will authenticate and deliver, temporary Notes which are printed, lithographed, typewritten, mimeographed or otherwise produced, in any authorized
denomination, substantially of the tenor of the definitive Notes in lieu of which they are issued and with such appropriate insertions, omissions, substitutions and other variations as the Issuer may determine, as evidenced by the Issuer’s
execution of such Notes. 
 (b) If temporary Notes of any Series or Class are issued, the Issuer will cause permanent Notes of such Series or
Class to be prepared without unreasonable delay. After the preparation of permanent Notes, the temporary Notes of such Series or Class will be exchangeable for permanent Notes of such Series or Class upon surrender of the temporary Notes of such
Series or Class at the office or agency of the Issuer in a Place of Payment, without charge to the Noteholder; and upon surrender for cancellation of any one or more temporary Notes the Issuer will execute and the Indenture Trustee or its agent
will, in accordance with Section 6.3 and with the Issuer Certificate delivered to the Indenture Trustee or its agent under Section 6.3, authenticate and deliver in exchange therefore a like Initial Note Balance of permanent
Notes of such Series or Class of authorized denominations and of like tenor and terms. Until so exchanged the temporary Notes of such Series or Class will in all respects be entitled to the same benefits under this Base Indenture as permanent Notes
of such Series or Class. 

  
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 Section 6.5. Registration, Transfer and Exchange. 

(a) Note Register. The Indenture Trustee, acting as Note Registrar, shall keep or cause to be kept a register (herein sometimes referred
to as the “Note Register”) in which, subject to such reasonable regulations as it may prescribe, the Issuer will provide for the registration of Notes, or of Notes of a particular Series or Class, and for transfers of Notes.
Any such register will be in written form or in any other form capable of being converted into written form within a reasonable time. At all reasonable times the information contained in such register or registers will be available for inspection by
the Issuer or the Indenture Trustee at the Corporate Trust Office. The Issuer, the Indenture Trustee, the Note Registrar, the Paying Agent and any agents of any of them, may treat a Person in whose name a Note is registered as the owner of such Note
for the purpose of receiving payments in respect of such Note and for all other purposes, and none of the Issuer, the Indenture Trustee, the Note Registrar, the Paying Agent or any agent of any of them, shall be affected by notice to the contrary.
None of the Issuer, the Indenture Trustee, any agent of the Indenture Trustee, any Paying Agent or the Note Registrar will have any responsibility or liability for any aspect of the records relating to or payments made on account of beneficial
ownership of a Global Note or for maintaining, supervising or reviewing any records relating to such beneficial ownership. 
 (b) Exchange
of Notes. Subject to Section 5.4, upon surrender for transfer of any Note of any Series or Class at the Place of Payment, the Issuer may execute, and, upon receipt of the documents required by Section 6.3 and such
surrendered Note, together with an Issuer’s Certificate, the Indenture Trustee will authenticate and deliver, in the name of the designated transferee or transferees, one or more new Notes of such Series or Class of any authorized
denominations, of a like aggregate Initial Note Balance and Stated Maturity Date and of like terms. Subject to Section 5.4, Notes of any Series or Class may be exchanged for other Notes of such Series or Class of any authorized
denominations, of a like aggregate Initial Note Balance and Stated Maturity Date and of like terms, upon surrender of the Notes to be exchanged at the Place of Payment. Whenever any Notes are so surrendered for exchange, the Issuer will execute, and
the Indenture Trustee or the related Authenticating Agent will authenticate and deliver the Notes which the Noteholders making the exchange are entitled to receive. 

(c) Issuer Obligations. All Notes issued upon any transfer or exchange of Notes shall be the valid and legally binding obligations of
the Issuer, evidencing the same debt, and entitled to the same benefits under this Base Indenture, as the Notes surrendered upon such transfer or exchange. 

(d) Endorsement of Notes to be Transferred or Exchanged. Every Note presented or surrendered for transfer or exchange will (if so
required by the Issuer, the Note Registrar or the Indenture Trustee) be duly endorsed, or be accompanied by a written instrument of transfer in form satisfactory to the Issuer, the Indenture Trustee, and the Note Registrar duly executed, by the
Noteholder thereof or such Noteholder’s attorney duly authorized in writing, with such signature guaranteed by an “eligible guarantor institution” meeting the requirements of the Securities Transfer Agent’s Medallion Program
(“STAMP”). 

  
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 (e) No Service Charge. Unless otherwise provided in the Note to be transferred or
exchanged, no service charge will be assessed against any Noteholder for any transfer or exchange of Notes, but the Issuer, the Indenture Trustee, and the Note Registrar may require payment of a sum sufficient to cover any tax or other governmental
charge that may be imposed in connection with any transfer or exchange of Notes before the transfer or exchange will be complete, other than exchanges pursuant to Section 5.4 not involving any transfer. 

(f) Deemed Representations by Transferees of Rule 144A Notes. Each transferee (including the initial Noteholder or Owner) of a Rule 144A
Note or of a beneficial interest therein shall be deemed by accepting such Note or beneficial interest, to have made all the certifications, representations and warranties set forth in the Rule 144A Note Transfer Certificate attached to Exhibit
B-1 attached hereto. 
 (g) Deemed Representations by Transferees of Regulation S Notes. Each transferee (including the initial
Noteholder or Owner) of a Regulation S Note or of a beneficial therein shall be deemed by accepting such Note or beneficial interest, to have made all the certifications, representations and warranties set forth in the Regulation S Note Transfer
Certificate attached to Exhibit B-2 attached hereto. 
 (h) Conditions to Transfer. No sale, pledge or other transfer (a
“Transfer”) of any Notes shall be made unless that Transfer is made pursuant to an effective registration statement under the 1933 Act and effective registration or qualification under applicable state securities laws or is
made in a transaction that does not require such registration or qualification. If a Transfer is made without registration under the 1933 Act (other than in connection with the initial issuance thereof by the Issuer), then the Note Registrar, the
Indenture Trustee, Administrator, on behalf of the Issuer, shall refuse to register such Transfer unless the Note Registrar receives either: 

(i) the Regulation S Note Transfer Certificate or Rule 144A Note Transfer Certificate and such other information as may be
required pursuant to this Section 6.5; or 
 (ii) if the Transfer is to be made to an Issuer Affiliate in a
transaction that is exempt from registration under the 1933 Act, an Opinion of Counsel reasonably satisfactory to the Issuer and the Note Registrar to the effect that such Transfer may be made without registration under the 1933 Act (which Opinion
of Counsel shall not be an expense of the Trust Estate or of the Issuer, the Indenture Trustee or the Note Registrar in their respective capacities as such). 

None of the Administrator, the Issuer, the Indenture Trustee or the Note Registrar is obligated to register or qualify the Notes under the
1933 Act or any other securities law or to take any action not otherwise required under this Base Indenture to permit the transfer of any Note without registration or qualification. Any Noteholder of a Note desiring to effect such a Transfer shall,
and upon acquisition of such a Note shall be deemed to have agreed to, indemnify the Indenture Trustee, the Note Registrar, the Administrator, the Servicer and the Issuer against any liability that may result if the Transfer is not so exempt or is
not made in accordance with the 1933 Act and applicable state securities laws. 

  
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 In connection with any Transfer of Notes in reliance on Rule 144A, the Administrator shall
furnish upon request of a Noteholder to such Noteholder and any prospective purchaser designated by such Noteholder the information required to be delivered under paragraph (d)(4) of Rule 144A. 

In the event that a Note is transferred to a Person that does not meet the requirements of this Section 6.5 and/or the
requirements of the related Indenture Supplement, such transfer will be of no force and effect, will be void ab initio, and will not operate to transfer any right to such Person, notwithstanding any instructions to the contrary to the Issuer,
the Indenture Trustee or any intermediary; and the Indenture Trustee shall not make any payment on such Note for as long as such Person is the Noteholder of such Note and the Indenture Trustee shall have the right to compel such Person to transfer
such Note to a Person who does meet the requirements of this Section 6.5. 
 (i) Transfers of Ownership Interests in Global
Notes. Transfers of beneficial interests in a Global Note representing Book-Entry Notes may be made only in accordance with the rules and regulations of the Depository (and, in the case of a Regulation S Global Note only to beneficial owners who
are not “U.S. persons” (as such term is defined in Regulation S) in accordance with the rules and regulations of Euroclear or Clearstream) and the transfer restrictions contained in the legend on such Global Note and exchanges or transfers
of interests in a Global Note may be made only in accordance with the following: 
 (i) General Rules Regarding Transfers
of Global Notes. Subject to clauses (ii) through (vii) of this Section 6.5(i), Transfers of a Global Note representing Book-Entry Notes shall be limited to Transfers of such Global Note in whole, but not in part,
to nominees of the Depository or to a successor of the Depository or such successor’s nominee. 
 (ii) Rule 144A
Global Note to Regulation S Global Note. If an owner of a beneficial interest in a Rule 144A Global Note related to a Series and/or Class deposited with or on behalf of the Depository wishes at any time to exchange its interest in such Rule 144A
Global Note for an interest in a Regulation S Global Note for that Series and/or Class, or to transfer its interest in such Rule 144A Global Note to a Person who wishes to take delivery thereof in the form of an interest in a Regulation S Global
Note for that Series and/or Class, such Note Owner (or transferee), provided such Note Owner (or transferee) is not a “U.S. person” (as such term is defined in Regulation S), may, subject to the rules and procedures of the
Depository, exchange or cause the exchange of such interest in such Rule 144A Global Note for a beneficial interest in the Regulation S Global Note for that Series and/or Class. Upon the receipt by the Indenture Trustee of (A) instructions from
the Depository directing the Indenture Trustee to cause to be credited a beneficial interest in a Regulation S Global Note in an amount equal to the beneficial interest in such Rule 144A Global Note to be exchanged but not less than the minimum
denomination applicable to the owner’s Notes held through a Regulation S Global Note, (B) a written order given in accordance with the Depository’s procedures containing information regarding the participant account of the Depository
and, in the case of a transfer pursuant to and in accordance with Regulation S, the Euroclear or Clearstream account to be credited with such increase and (C) a certificate (each, a “Regulation S Note Transfer
Certificate”) in the form of Exhibit B-2 hereto given by the Note Owner or its transferee stating that the 

  
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exchange or transfer of such interest has been made in compliance with the transfer restrictions applicable to the Global Notes, including the requirements that the Note Owner or its transferee
is not a “U.S. person” (as such term is defined in Regulation S) and the transfer is made pursuant to and in accordance with Regulation S, then the Indenture Trustee and the Note Registrar, shall reduce the principal amount of the Rule
144A Global Note for the related Series and/or Class and increase the principal amount of the Regulation S Global Note for the related Series and/or Class by the aggregate principal amount of the beneficial interest in the Rule 144A Global Note to
be exchanged, and shall instruct Euroclear or Clearstream, as applicable, concurrently with such reduction, to credit or cause to be credited to the account of the Person specified in such instructions a beneficial interest in the Regulation S
Global Note for the related Series and/or Class equal to the reduction in the principal amount of the Rule 144A Global Note for the related Series and/or Class. 

(iii) Regulation S Global Note to Rule 144A Global Note. If an owner of a beneficial interest in a Regulation S Global
Note related to a Series and/or Class deposited with or on behalf of the Depository wishes at any time to transfer its interest in such Regulation S Global Note to a Person who wishes to take delivery thereof in the form of an interest in a Rule
144A Global Note for such Series and/or Class, such owner’s transferee may, subject to the rules and procedures of the Depository, exchange or cause the exchange of such interest for an equivalent beneficial interest in a Rule 144A Global Note
for such Series and/or Class. Upon the receipt by the Indenture Trustee and the Note Registrar, of (A) instructions from the Depository directing the Indenture Trustee and the Note Registrar, to cause to be credited a beneficial interest in a
Rule 144A Global Note in an amount equal to the beneficial interest in such Regulation S Global Note to be exchanged but not less than the minimum denomination applicable to such owner’s Notes held through a Rule 144A Global Note, to be
exchanged, such instructions to contain information regarding the participant account with the Depository to be credited with such increase, and (B) a certificate (each, a “Rule 144A Note Transfer Certificate”) in the
form of Exhibit B-1 hereto given by the transferee of such beneficial interest, then the Indenture Trustee will reduce the principal amount of the Regulation S Global Note and increase the principal amount of the Rule 144A Global Note for the
related Series and/or Class by the aggregate principal amount of the beneficial interest in the Regulation S Global Note for the related Series and/or Class to be transferred and the Indenture Trustee and the Note Registrar, shall instruct the
Depository, concurrently with such reduction, to credit or cause to be credited to the account of the Person specified in such instructions a beneficial interest in the Rule 144A Global Note for the related Series and/or Class equal to the reduction
in the principal amount of the Regulation S Global Note for the related Series and/or Class. 
 (iv) Transfers of
Interests in Rule 144A Global Note. An owner of a beneficial interest in a Rule 144A Global Note may transfer such interest in the form of a beneficial interest in such Rule 144A Global Note in accordance with the procedures of the Depository
without the provision of written certification. 
 (v) Transfers of Interests in Regulation S Global Note. An owner of
a beneficial interest in a Regulation S Global Note may transfer such interest in the form of a beneficial interest in such Regulation S Global Note in accordance with the applicable procedures of Euroclear and Clearstream without the provision of
written certification. 

  
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 (vi) Regulation S Global Note to Regulation S Definitive Note.
Subject to Section 5.4(j) hereof, an owner of a beneficial interest in a Regulation S Global Note for the related Series and/or Class deposited with or on behalf of a Depository may at any time transfer such interest for a Regulation
S Definitive Note upon provision to the Indenture Trustee, the Issuer and the Note Registrar of a Regulation S Note Transfer Certificate. 

(vii) Rule 144A Global Note to Rule 144A Definitive Note. Subject to Section 5.4(j) hereof, an owner of a
beneficial interest in a Rule 144A Global Note deposited with or on behalf of a Depository may at any time transfer such interest for a Rule 144A Definitive Note, upon provision to the Indenture Trustee, the Issuer and the Note Registrar of a Rule
144A Note Transfer Certificate. 
 (j) Transfers of Definitive Notes. In the event of any Transfer of a Regulation S Definitive Note,
a Regulation S Note Transfer Certificate shall be provided prior to the Indenture Trustee’s or Note Registrar’s registration of such Transfer. In the event of any Transfer of a Rule 144A Definitive Note, a Rule 144A Note Transfer
Certificate shall be provided prior to the Indenture Trustee’s or Note Registrar’s registration of such Transfer. 
 (k) ERISA
Restrictions. Neither the Note Registrar nor the Indenture Trustee shall register the Transfer of any Definitive Notes unless the prospective transferee has delivered to the Indenture Trustee and the Note Registrar a certification to the effect
that either (i) it is not, and is not acquiring, holding or transferring the Notes, or any interest therein, or on behalf of, or using assets of, an “employee benefit plan” as defined in Section 3(3) of ERISA, a plan described in
section 4975(e)(1) of the Code, an entity which is deemed to hold the assets of any such employee benefit plan or plan pursuant to 29 C.F.R. Section 2510.3-101 as modified by Section 3(42) of ERISA (the “Plan Asset
Regulations”), which employee benefit plan, plan or entity is subject to Title I of ERISA or section 4975 of the Code, or a governmental, non-U.S., church or other plan which is subject to any U.S. federal, state, local or other law
that is substantially similar to Title I of ERISA or section 4975 of the Code (“Similar Law”), or (ii) (A) as of the date of transfer or purchase, it believes that such Notes are properly treated as indebtedness
without substantial equity features for purposes of the Plan Asset Regulations and agrees to so treat such Notes and (B) the transferee’s acquisition, holding
orand disposition of the Notes or any interest therein will satisfy the requirements of Prohibited Transaction Class Exemption (“PTCE”) 84-14 (relating to transactions effected by a qualified
professional asset manager), PTCE 90-1 (relating to investments by insurance company pooled separate accounts), PTCE 91-38 (relating to investments in bank collective investment funds), PTCE 95-60 (relating to transactions involving insurance
company general accounts), PTCE 96-23 (relating to transactions directed by an in-house professional asset manager) or the statutory prohibited transaction exemption for service providers set forth in section 408(b)(17) of ERISA and section
4975(d)(20) of the Code or a similar class, statutory or administrative exemption and will not result in a non-exempt prohibited transaction under section 406 of ERISA or section 4975 of the Code (or, in the case of a governmental, non-U.S., church
or other plan subject to such Similar Law, will not violate any such Similar Law). In the case of any Book-Entry Note, each transferee of such Note or any beneficial interest therein by virtue of its acquisition of such Note will be deemed to
represent either (i) or (ii) above. 

  
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 (l) No Liability of Indenture Trustee for Transfers. To the extent permitted under
applicable law, the Indenture Trustee (in any of its capacities) shall be under no liability to any Person for any registration of transfer of any Note that is in fact not permitted by this Section 6.5 or for making any payments due to
the Noteholder thereof or taking any other action with respect to such Noteholder under the provisions of this Base Indenture so long as the transfer was registered by the Indenture Trustee and the Note Registrar in accordance with the requirements
of this Base Indenture. 
 (m) Deemed Representations regarding Fannie Mae ́s Rights. Each transferee of a Term Note or of a
beneficial interest therein, by accepting such Term Note or beneficial interest, shall be deemed to have made, acknowledged and represented to and with the Indenture Trustee and Fannie Mae, each of the following statements: 

(i) the rights of any Noteholder will be subject and subordinate in all respects to all rights, powers, and prerogatives of
Fannie Mae under the Fannie Mae Lender Contract, and no Noteholder enjoys privity of contract with Fannie Mae or is entitled to any benefit under the Acknowledgment Agreement except to the extent that the Indenture Trustee is entering into and shall
perform under the Acknowledgment Agreement in its capacity as Indenture Trustee for the benefit of the
Noteholders; 

(ii) Fannie Mae has the right to terminate the Servicer with or without cause and controls the process for the disposition of
assets under the Acknowledgment Agreement in the event of a termination of the Servicer or other transfer of MSRs; and 
 (iii) pursuant to the Fannie Mae Lender Contract, Fannie Mae has the right to
offset liabilities owed to it subject to the Acknowledgment Agreement against fees and compensation paid to the Servicer prior to any distribution of excess servicing to any Noteholder.; and 

(iv)
 Holders of any Term Notes issued on or after the Amendment Effective Date further agree that, from time to time, Fannie Mae and the Servicer have the right to agree to effect amendments to the Acknowledgment Agreement, and Fannie Mae may make
changes to the Fannie Mae Guide. Such Noteholders will be deemed to have consented to the terms of any amendments, restatements, modifications or any other supplements entered into with respect to the Transaction Documents as may be necessary or
advisable in the Administrator’s discretion for the terms of the Transaction Documents to conform to the terms set forth in any amendments to the Acknowledgment Agreement or changes to the Fannie Mae Guide. 

  
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 Section 6.6. Mutilated, Destroyed, Lost and Stolen Notes. 

(a) If (1) any mutilated Note is surrendered to the Indenture Trustee or the Note Registrar, or the Issuer, the Note Registrar or the
Indenture Trustee receive evidence to their satisfaction of the destruction, loss or theft of any Note, and (2) there is delivered to the Issuer, the Note Registrar or the Indenture Trustee such security or indemnity as may be required by them
to save each of them harmless, then, in the absence of notice to the Issuer, the Note Registrar or the Indenture Trustee that such Note has been acquired by a protected purchaser, the Issuer may execute, and, upon receipt of the documents required
by Section 6.3, together with an Issuer’s Certificate, the Indenture Trustee will authenticate and deliver, in exchange for or in lieu of any such mutilated, destroyed, lost or stolen Note, a new Note of like tenor, Series or Class,
Stated Maturity Date and Initial Note Balance, bearing a number not contemporaneously Outstanding. 
 (b) In case any such mutilated,
destroyed, lost or stolen Note has become or is about to become due and payable, the Issuer in its discretion may, instead of issuing a new Note, pay such Note on a Payment Date in accordance with Section 4.5. 

(c) Upon the issuance of any new Note under this Section, the Issuer, the Indenture Trustee, or the Note Registrar may require the payment of a
sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of the Indenture Trustee) connected therewith. 

(d) Every new Note issued pursuant to this Section in lieu of any mutilated, destroyed, lost or stolen Note will constitute an original
additional contractual obligation of the Issuer, whether or not the mutilated, destroyed, lost or stolen Note will be at any time enforceable by anyone, and will be entitled to all the benefits of this Base Indenture equally and proportionately with
any and all other Notes of the same Series or Class duly issued hereunder. 
 (e) The provisions of this Section are exclusive and will
preclude (to the extent lawful) all other rights and remedies with respect to the replacement or payment of mutilated, destroyed, lost or stolen Notes. 

Section 6.7. Payment of Interest; Interest Rights Preserved; Withholding Taxes. 

(a) Unless otherwise provided with respect to such Note pursuant to Section 6.1, interest payable on any Note will be paid to the
Person in whose name that Note (or one or more Predecessor Notes) is registered at the close of business on the most recent Record Date. 

(b) Subject to Section 6.7(a), each Note delivered under this Base Indenture upon transfer of or in exchange for or in lieu of any
other Note will carry the rights to interest and fees accrued or principal accreted and unpaid, and to accrue or accrete, which were carried by such other Note. 

(c) The right of any Noteholder to receive interest and fees on or principal of any Note shall be subject to any applicable withholding or
deduction imposed pursuant to the Code or other applicable tax law, including foreign withholding and deduction. Any amounts properly so withheld or deducted shall be treated as actually paid to the appropriate Noteholder. In addition, in order to
receive payments on its Notes free of U.S. federal withholding and backup withholding tax, each Noteholder shall timely furnish the Indenture Trustee on behalf of the Issuer, (1) any applicable IRS Form W-9, W-8BEN, W-8BEN-E, W-8ECI or W-8IMY
(with any applicable attachments) and (2) any documentation that is required under FATCA to enable the Issuer, the 

  
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Indenture Trustee and any other agent of the Issuer to determine their duties and liabilities with respect to any taxes they may be required to withhold in respect of such Note or the Noteholder
of such Note or beneficial interest therein, in each case, prior to the first Payment Date after such Noteholder’s acquisition of Notes and at such time or times required by law or that the Indenture Trustee on behalf of the Issuer or their
respective agents may reasonably request, and shall update or replace such IRS form or documentation in accordance with its terms or its subsequent amendments. Each Noteholder will provide the applicable replacement IRS form or documentation every
three (3) years (or sooner if there is a transfer to a new Noteholder or if required by applicable law). In each case above, the applicable IRS form or documentation shall be properly completed and signed under penalty of perjury. 

Section 6.8. Persons Deemed Owners. 

The Issuer, the Indenture Trustee, the Note Registrar and any agent of the Issuer, the Indenture Trustee or the Note Registrar may treat the
Person in whose name the Note is registered in the Note Registrar as the owner of such Note for the purpose of receiving payment of principal of and (subject to Section 6.7) interest on such Note and for all other purposes whatsoever,
whether or not such Note is overdue, and neither the Issuer, the Indenture Trustee, the Note Registrar, nor any agent of the Issuer, the Indenture Trustee, or the Note Registrar will be affected by notice to the contrary. 

Section 6.9. Cancellation. 
 All
Notes surrendered for payment, redemption, transfer, conversion or exchange will, if surrendered to any Person other than the Indenture Trustee, be delivered to the Indenture Trustee and, if not already canceled, will be promptly canceled by it. The
Issuer may at any time deliver to the Indenture Trustee for cancellation any Notes previously authenticated and delivered hereunder which the Issuer may have acquired in any manner whatsoever, and all Notes so delivered will be promptly canceled by
the Indenture Trustee. No Note will be authenticated in lieu of or in exchange for any Notes canceled as provided in this Section, except as expressly permitted by this Base Indenture. The Indenture Trustee will dispose of all canceled Notes in
accordance with its customary procedures. 
 Section 6.10. New Issuances of Notes. 

(a) Issuance of New Notes. The Issuer may, from time to time, direct the Indenture Trustee, on behalf of the Issuer, to issue new Notes
of any Series or Class, so long as the conditions precedent set forth in Section 6.10(b) are satisfied if, at the time of issuance, other Notes have already been issued and remain Outstanding. On or before the Issuance Date of new Notes
of any Series or Class of Notes, the Issuer shall execute and deliver the required Indenture Supplement which shall incorporate the principal terms with respect to such additional Series or Class of Notes. The Indenture Trustee shall execute any
such Indenture Supplement without the consent of any Noteholders, the Issuer shall execute the Notes of such Series or Class and the Notes of such Series or Class shall be delivered to the Indenture Trustee (along with the other deliverables
required hereunder) for authentication and delivery. Notwithstanding the foregoing, the conditions to the issuance of the new Notes contemplated by Section 6.10(b) shall not apply to the issuance of any Series of Notes on the Closing
Date. 

  
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 (b) Conditions to Issuance of New Notes. The issuance of the Notes of any Series or
Class after the Closing Date pursuant to this Section 6.10 shall be subject to the satisfaction of the following conditions: 

(i) no later than ten (10) Business Days before the date that the new issuance is to occur, the Issuer delivers to the
Indenture Trustee, each VFN Noteholder and each Note Rating Agency that has rated any Outstanding Note that will remain Outstanding after the new issuance, notice of such new issuance; 

(ii) on or prior to the date that the new issuance is to occur, the Issuer delivers to the Indenture Trustee and each Note
Rating Agency that has rated any Outstanding Note that will remain Outstanding after the new issuance, an Issuer Certificate to the effect that (x) the Issuer reasonably believes that the new issuance will not cause a material Adverse Effect on any
Outstanding Notes or a Secured Party, and (y) all conditions precedent set forth in this Base Indenture to the issuance of such Notes have been met, an Issuer Tax Opinion with respect to such proposed issuance, and an Opinion of Counsel: 

(A) to the effect that all instruments furnished to the Indenture Trustee conform to the requirements of this Base Indenture
for the Indenture Trustee to authenticate and deliver such Notes; 
 (B) to the effect that the form and terms of such Notes
have been established in conformity with the provisions of this Base Indenture; and 
 (C) covering such other matters as the
Indenture Trustee may reasonably request; 
 (iii) on or prior to the date that the new issuance is to occur, the Issuer will
have delivered to the Indenture Trustee and each Note Rating Agency that is at that time rating Outstanding Notes that will remain Outstanding after the new issuance, an Opinion of Counsel to the effect that the Issuer has the requisite power and
authority to issue such Notes and such Notes have been duly authorized and delivered by the Issuer and, assuming due authentication and delivery by the Indenture Trustee, constitute legal, valid and binding obligations of the Issuer enforceable in
accordance with their terms (subject, as to enforcement of remedies, to applicable bankruptcy, reorganization, insolvency, moratorium or other laws and legal principles affecting creditors’ rights generally from time to time in effect and to
general equitable principles, whether applied in an action at law or in equity) and are entitled to the benefits of this Base Indenture, equally and ratably with all other Outstanding Notes, if any, of such Series or Class subject to the terms of
this Base Indenture and each Indenture Supplement; 
 (iv) if any additional conditions to the new issuance are specified in
writing to the Issuer by a Note Rating Agency that is at that time rating any Outstanding Note that will remain Outstanding after the new issuance, the Issuer satisfies such conditions, if they are applicable to such Notes; 

  
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 (v) either (1) the Issuer obtains written confirmation from each Note
Rating Agency that is at that time rating any Outstanding Note at the request of the Issuer that will remain Outstanding after the new issuance that the new issuance will not have a Ratings Effect on any Outstanding Notes that are rated by such Note
Rating Agency at the request of the Issuer or (2) if the Administrator and the Administrative Agents determine in their reasonable judgment that an applicable Note Rating Agency no longer provides such written confirmation described in the
foregoing clause (1), (a) the Administrator shall provide notice of such new issuance to the related Note Rating Agency and (b) each of the parties that would be Administrative Agents after giving effect to the new issuance shall
have provided their prior written consent to such new issuance which may be given in reliance in part on the Issuer’s Certificate delivered pursuant to Section 6.10(b)(ii) above; 

(vi) no Event of Default shall have occurred and be continuing, as evidenced by an Issuer’s Certificate, unless
(a) the proceeds of such new Notes are applied in whole or in part to redeem all other Outstanding Notes and/or (b) the Noteholders of any Notes that will remain Outstanding consent to such issuance of new Notes; 

(vii) on or prior to the date that the new issuance is to occur, the Issuer will have delivered to the Indenture Trustee an
Indenture Supplement and, if applicable, the Issuer Certificate; 
 (viii) any Class of VFN must have the same Stated
Maturity Date and Interim Payment Date as any and all other Outstanding Classes of VFNs; 
 (ix) if any Class of VFNs is
beneficially owned by the beneficial owner of the Issuer, all Classes of VFNs must be beneficially owned by the beneficial owner of the Issuer for United States federal income tax purposes and the financing of such Class of VFNs shall be subject to
the requirement for an Issuer Tax Opinion; 
 (x) for any new Series with respect to which there is a new Administrative
Agent not currently set forth under the terms of the definition of “Administrative Agent,” the Administrative Agent shall have consented to the issuance of such Series, unless the Notes in respect of which the existing Administrative
Agent’s consent is required, are paid in full and all related commitments terminated in writing by the Issuer and any remaining accrued commitment fees paid in full to such terminated Administrative Agent, in connection with the issuance of the
new Series with the different Administrative Agent; and 
 (xi) any other conditions specified in the applicable Indenture
Supplement; provided, however, that any one of the aforementioned conditions may be eliminated (other than clause (v) above and the requirement for an Issuer Tax Opinion) or modified as a condition precedent to any new
issuance of a Series or Class of Notes if the Issuer has obtained approval from each Note Rating Agency that is at that time rating any Outstanding Notes that will remain Outstanding after the new issuance. 

  
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 (c) No Notice or Consent Required to or from Existing Noteholders and
Owners. Except as provided in Section 6.10(b) above, the Issuer and the Indenture Trustee will not be required to provide prior notice to or to obtain the consent of any Noteholder or Note Owner of Notes of any Outstanding Series or
Class to issue any additional Notes of any Series or Class. 
 (d) Other Provisions. There are no restrictions on the
timing or amount of any additional issuance of Notes of an Outstanding Series or Class within a Series, of Notes, so long as the conditions described in Section 6.10(b) are met or waived. 

(e) Sale Proceeds. The proceeds of sale of any new Series of Notes shall be wired to the Collection and Funding Account,
and the Indenture Trustee shall disburse such sale proceeds at the direction of the Administrator on behalf of the Issuer, except to the extent such funds are needed to ensure that no the Borrowing Base Deficiency exists. The Administrator on behalf
of the Issuer may direct the Issuer to apply such proceeds to reduce pro rata based on Invested Amounts, the VFN Principal Balance of any Classes of Variable Funding Notes, or to redeem any Series of Notes in accordance with
Section 13.1. In the absence of any such direction, the proceeds of such sale shall be distributed to PMC or at PMC’s direction on the Issuance Date for the newly issued Notes. The Administrator shall deliver to the Indenture Trustee a
report demonstrating that the release of sale proceeds pursuant to the Issuer’s direction will not cause a Borrowing Base Deficiency, as a precondition to the Indenture Trustee releasing such proceeds. 

(f) Increase or Reduction in Maximum VFN Principal Balance. The increase or reduction in the Maximum VFN Principal
Balance in respect of any Outstanding Class of Notes, the increase or decrease of any Advance Rates in respect thereof and/or the increase or decrease of interest rates in respect thereof shall not constitute an issuance of “new Notes” for
purpose of this Section 6.10. 
 Article VII 

Satisfaction and Discharge; Cancellation of Notes Held by the Issuer or PMC 

Section 7.1. Satisfaction and Discharge of Indenture. 

This Base Indenture will cease to be of further effect with respect to any Series or Class of Notes (except as to any surviving rights of
transfer or exchange of Notes of that Series or Class expressly provided for herein or in the form of Note for that Series or Class), and the Indenture Trustee, on demand of and at the expense of the Issuer, will execute proper instruments
acknowledging satisfaction and discharge of this Base Indenture, when: 
 (a) all Notes of that Series or Class theretofore authenticated and
delivered (other than (i) Notes of that Series or Class which have been destroyed, lost or stolen and which have been replaced or paid as provided in Section 6.6, and (ii) Notes of that Series or Class for whose payment money has
theretofore been deposited in trust or segregated and held in trust by the Issuer and thereafter repaid to the Issuer or discharged from that trust) have been delivered to the Indenture Trustee canceled or for cancellation or have been redeemed in
accordance with Article XIII hereof or the applicable Indenture Supplement (in which case, such redeemed Notes shall be deemed to have been canceled and shall be immediately surrendered to the Indenture Trustee in exchange for the related
redemption price); 

  
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 (b) with respect to the discharge of this Base Indenture for each Series or Class, the
Issuer has paid or caused to be paid all sums payable hereunder (including payments to the Indenture Trustee (in all its capacities) pursuant to Section 11.7 with respect to the Notes or in respect of Fees, and any and all other amounts
due and payable pursuant to this Base Indenture; and 
 (c) the Issuer has delivered to the Indenture Trustee an Officer’s Certificate
and an Opinion of Counsel each stating that all conditions precedent herein provided for relating to the satisfaction and discharge of this Base Indenture with respect to the Notes of that Series or Class have been complied with. 

Notwithstanding the satisfaction and discharge of this Base Indenture with respect to any Series or Class of Notes, the obligations of the
Administrator to the Indenture Trustee with respect to any Series or Class of Notes under Section 11.7 and of the Issuer to the Securities Intermediary under Section 4.9 and the obligations and rights of the Indenture Trustee
under Section 7.2 and Section 11.3, respectively, will survive such satisfaction and discharge. 
 Section 7.2. Application
of Trust Money. 
 All money and obligations deposited with the Indenture Trustee pursuant to Section 7.1 and all money
received by the Indenture Trustee in respect of such obligations will be held in trust and applied by it or the Paying Agent, in accordance with the provisions of the Class of Notes in respect of which it was deposited and this Base Indenture and
the related Indenture Supplement, to the payment to the Persons entitled thereto, of the principal and interest for whose payment that money and obligations have been deposited with or received by the Indenture Trustee or the Paying Agent. 

Section 7.3. Cancellation of Notes Held by the Issuer or PMC. 

If the Issuer, PMC or any of their respective Affiliates holds any Notes, that Noteholder may, subject to any provision of a related Indenture
Supplement limiting the repayment of such Notes by notice from that Noteholder to the Indenture Trustee, cause the Notes to be repaid and canceled, whereupon the Notes will no longer be Outstanding; provided, that, such repayment and
cancelation shall be subject to the written consent of the Administrative Agent. 
 Section 7.4. Termination of Servicer’s Servicing Rights;
Fannie Mae’s Rights. 
 (a) The Security Interest is subject and subordinate to all rights, remedies, and prerogatives of Fannie Mae
under and in connection with the Acknowledgment Agreement and the Fannie Mae Requirements and each Noteholder acknowledges such senior rights, remedies and prerogatives upon the acquisition of an interest in a Note. Notwithstanding anything to the
contrary in this Indenture or any other Transaction Document, each Noteholder agrees to the following: 

  
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 (1) the rights of any Noteholder will be subject and subordinate in all
respects to all rights, powers, and prerogatives of Fannie Mae under the Fannie Mae Lender Contract, and no Noteholder enjoys privity of contract with Fannie Mae or is entitled to any benefit under the Acknowledgment Agreement except to the extent
that the Indenture Trustee is entering into and shall perform under the Acknowledgment Agreement in its capacity as Indenture Trustee for the benefit of the Noteholders; 

(2) Fannie Mae has the right to terminate the Servicer with or without cause and controls the process for the disposition of
assets under the
AcknowledgementAcknowledgment
 Agreement in the event of a termination of the Servicer or other transfer of MSRs; and 
 (3) pursuant to the Fannie Mae Lender Contract, Fannie Mae has the right to
offset liabilities owed to it subject to the Acknowledgment Agreement against fees and compensation paid to the Servicer prior to any distribution of excess servicing to any Noteholder; and 

(4)
 Holders of any Term Notes issued on or after the Amendment Effective Date further agree that, from time to time, Fannie Mae and the Servicer have the right to agree to effect amendments to the Acknowledgment Agreement, and Fannie Mae may make
changes to the Fannie Mae Guide. Such Noteholders will be deemed to have consented to the terms of any amendments, restatements, modifications or any other supplements entered into with respect to the Transaction Documents as may be necessary or
advisable in the Administrator’s discretion for the terms of the Transaction Documents to conform to the terms set forth in any amendments to the Acknowledgment Agreement or changes to the Fannie Mae Guide. 
 (b) As a result of the termination of the Servicer’s Servicing Rights in all or a
portion of the Collateral, Issuer acknowledges that: 
 (1) the Indenture Trustee, on behalf of the Noteholders, shall have
rights pursuant to and in accordance with the Acknowledgment Agreement with respect to the MSRs related to the Subject Mortgages (including, (i) the ability to retain the servicing of, with the consent of Fannie Mae, the Subject Mortgages and
(ii) the ability to appoint, with the consent of Fannie Mae, a Proposed New Servicer that will assume the duties rights and obligations of the Servicer with respect to the Subject Mortgages); and 

(2) notwithstanding such rights, none of the Indenture Trustee, the Administrative Agent or the Noteholders shall have any
responsibility, express or implied, to protect or consider Servicer’s rights or interests in connection with any of the Indenture Trustee’s actions or inactions pursuant to the Acknowledgment Agreement, including the receipt of any amounts
with respect to the Subject Mortgages following any transfer of Issuer responsibility. 
 (c) Any Net Proceeds received by the Indenture
Trustee shall be applied first, to satisfy any costs and expenses of the Indenture Trustee, the transferee servicer or any of their affiliates in connection with any of the transactions contemplated by any of the Transaction Documents and
second, to reduce the other obligations. 

  
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 (d) The Servicer acknowledges that, notwithstanding the termination of its Servicing Rights
under the Fannie Mae Lender Contract, it remains obligated in accordance with the terms hereof to the extent that any amounts payable to the Indenture Trustee, the Administrative Agent, the Noteholders or any Indemnified Party hereunder have not
been paid in full. 
 (e) Any provision providing for the exercise of any action or discretion by the Indenture Trustee, (i) with
respect to Sections 5, 6 or 7 of the Acknowledgment Agreement as a result of a Transfer/Engagement Request or termination of Servicing Rights under the Fannie Mae Lender Contract, shall be exercised by the Indenture Trustee at the written direction
of 100% of the VFN Noteholders, and (ii) with respect to any other provision of the Acknowledgment Agreement (other than Sections 5, 6 and 7 thereof), shall be exercised by the Indenture Trustee at the written direction of the Majority
Noteholders of all Outstanding Notes. 
 Article VIII 

Events of Default and Remedies 

Section 8.1. Events of Default. 

“Event of Default” means, any one of the following events (whatever the reason for such Event of Default, and whether
it is voluntary or involuntary, or effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body): 

(a) unless otherwise specified in any Indenture Supplement with respect to any Class, default (which default continues for a period of two
(2) Business Days following written notice (which may be in electronic form) from the Indenture Trustee or the Administrative Agent), in the payment: (1) of (i) any interest or any Fees due and owing on any Payment Date, (ii) any
Scheduled Principal Payment Amount due and owing on any date, or (iii) any Early Amortization Event Payment Amount due and owing on any date; or (2) in full of all accrued and unpaid interest and the outstanding Note Balance of the Notes
of any Series or Class on or before the applicable Stated Maturity Date; 
 (b) the occurrence of an Insolvency Event as to the Issuer, the
Administrator or the Servicer; 
 (c) the Issuer or the Trust Estate shall have become subject to registration as an “investment
company” within the meaning of the Investment Company Act as determined by a court of competent jurisdiction in a final and non-appealable order; 

(d) PMC sells, transfers, pledges or otherwise disposes of the Owner Trust Certificate (except to a wholly-owned subsidiary of PMC) other than
pursuant to the terms and provisions of the Transaction Documents, whether voluntarily or by operation of law, foreclosure or other enforcement by a Person of its remedies against PMC, except with the consent of the Administrative Agent; 

  
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 (e)(i) any material provision of any Transaction Document shall at any time for any reason
(other than pursuant to the express terms thereof) cease to be valid and binding on or enforceable against the Issuer, the Administrator, the Servicer or any of their respective Affiliates intended to be a party thereto, (ii) the validity or
enforceability of any Transaction Document shall be contested by the Issuer, the Administrator, the Servicer or any of their respective Affiliates, (iii) a proceeding shall be commenced by the Issuer, the Administrator, the Servicer or any of
their respective Affiliates or any governmental body having jurisdiction over the Issuer, the Administrator, the Servicer or any of their respective Affiliates, seeking to establish the invalidity or unenforceability of any Transaction Document, or
(iv) the Issuer, the Administrator, the Servicer or any of their respective Affiliates shall deny in writing that it has any liability or obligation purported to be created under any Transaction Document; 

(f) the Administrator or any Affiliate thereof has taken any action which, or failed to take any action, the omission of which could reasonably
be expected to materially impair the interests of the Issuer in the Participation Certificates or the security interest or rights of the Indenture Trustee in the Trust Estate, subject only to the interests and rights of Fannie Mae; provided,
however, that if the event is capable of being cured in all respects by corrective action and has not resulted in a material adverse effect on the Noteholders’ interests in the Trust Estate, such event shall not become an Event of
Default unless it remains uncured for two (2) Business Days following its occurrence; 
 (g) following a Payment Date on which a draw is
made on a Series Reserve Account, the amount on deposit in such Series Reserve Account is not increased back to the related Series Reserve Required Amount (if applicable) within the time frame set forth in the related Indenture Supplement; 

(h)(A) any United States federal income tax is imposed on the Issuer as an association (or publicly traded partnership) taxable as a
corporation or a taxable mortgage pool taxable as a corporation, each for United States federal income tax purposes or any U.S. withholding tax is imposed on payments to the Issuer with respect to the Participation Certificates or (B) a tax,
ERISA, or other government lien, in any case, other than Permitted Liens, is imposed on the Participation Certificates or any property of the Issuer; 

(i) the occurrence of a Borrowing Base Deficiency which continues for a period of two (2) Business Days following written notice from the
Indenture Trustee or the Administrative Agent; 
 (j) the occurrence and continuation of an “Event of Default” (as defined in the
PC Repurchase Agreement) under the PC Repurchase Agreement; 
 (k) the occurrence of an “Event of Default” (as defined in the PC
Repo Guaranty) under the PC Repo Guaranty or the occurrence of an “Event of Default” (as defined in the PMH Repo Guaranty) under the PMH Repo Guaranty unless, with respect to the PMH Repo Guaranty, PMC has (i) repurchased or
foreclosed upon its security interest in the Sold MSR Excess Spread PC in satisfaction of its obligation to pay the PMH Repurchase Price, or (ii) removed the Sold MSR Express Spread PC and the related Sold MSR Portfolio from the Collateral
pursuant to Section 2.1(b)(ii)(A)(1); 

  
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 (l) any failure by PMC to deliver (i) any Determination Date Report pursuant to
Section 3.2 or (ii) any MSR Monthly Report pursuant to Section 3.3(f), which continues unremedied for a period of five (5) Business Days after a Responsible Officer of PMC shall have obtained actual knowledge of such
failure, or shall have received written or electronic notice from the Indenture Trustee or any Noteholder of such failure; 
 (m)(i)
(A) PMC shall fail to materially comply with the requirements of Sections 10.2(n), 10.3(a), 10.3(b), 10.3(c) or 10.3(d), or (B) PMC shall fail to provide notice of an Event of Default pursuant to the
requirements set forth in Section 4.12; or (ii) the Issuer, the Servicer or the Administrator shall breach or default in the due observance or performance of any of its other covenants or agreements in this Base Indenture, any
Indenture Supplement or any other Transaction Document in any material respect (subject to any cure period provided therein), and any such default shall continue for a period of five (5) Business Days after the earlier to occur of
(a) actual discovery by a Responsible Officer of the Issuer, the Servicer or the Administrator, as applicable, or (b) the date on which written or electronic notice of such failure, requiring the same to be remedied, shall have been given
from the Indenture Trustee or any Noteholder to a Responsible Officer of the Issuer, the Servicer or the Administrator; 
 (n)(i) any
representation or warranty of the Issuer, the Servicer or the Administrator made in this Base Indenture, any Indenture Supplement or any other Transaction Document in any material respect (other than under the PC Repurchase Agreement) shall prove to
have been breached in any material respect as of the time when the same shall have been made or deemed made, and continues uncured and unremedied for a period of ten (10) Business Days after the earlier to occur of (a) actual discovery by
a Responsible Officer of the Issuer, the Servicer or the Administrator, as applicable, or (b) the date on which written notice of such failure, requiring the same to be remedied, shall have been given to a Responsible Officer of the Issuer, the
Servicer or the Administrator, as applicable; 
 (o)(a) a final judgment or judgments for the payment of money in excess of $50,000 in the
aggregate shall be rendered against the Issuer by one or more courts, administrative tribunals or other bodies having jurisdiction over them, (b) an order of any court, administrative agency, arbitrator or governmental body rendered against PMC
or the Issuer, which would have a material Adverse Effect on the transactions contemplated hereunder or (c) an event has occurred which with notice or lapse of time or both would constitute such a default under clause (b) herein
with respect to any such order of any court, administrative agency, arbitrator or governmental body; 
 (p) following a Payment Date on which
a draw is made on the Expense Reserve Account, the amount on deposit in the Expense Reserve Account is not increased back to the related Expense Reserve Required Amount prior to the next Payment Date; 

(q) the occurrence of any action by Fannie Mae pursuant to the Acknowledgment Agreement to terminate the rights of PMC as servicer; 

  
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 (r) the occurrence of a Subservicer Termination Event; 

(s) the occurrence of any other event designated as an Event of Default in the related Indenture Supplement. 

Upon the occurrence of any such event none of the Administrator nor the Servicer shall be relieved from performing its obligations in a timely
manner in accordance with the terms of this Base Indenture, and each of the Administrator and the Servicer shall provide the Indenture Trustee, each Note Rating Agency for each Note then Outstanding, the Disposition Manager and the Noteholders
prompt notice of such failure or delay by it, together with a description of its effort to perform its obligations. Each of the Administrator, the Servicer and the Disposition Manager shall promptly notify the Indenture Trustee in writing of any
Event of Default or an event which with notice, the passage of time or both would become an Event of Default of which it has actual knowledge. For purposes of this Section 8.1, the Indenture Trustee shall not be deemed to have knowledge
of an Event of Default unless a Responsible Officer of the Indenture Trustee assigned to and working in the Corporate Trust Office has actual knowledge thereof or unless written notice of any event which is in fact such an Event of Default is
received by the Indenture Trustee from the Administrative Agent and such notice references the Notes, the Trust Estate or this Base Indenture. The Indenture Trustee shall provide notice of defaults in accordance with Section 3.3(b) and
Section 11.2. 
 Section 8.2. Acceleration of Maturity; Rescission and Annulment. 

(a) If an Event of Default of the kind specified in clauses (b), (c) or (q) of Section 8.1 occurs, the
unpaid principal amount of all of the Notes shall automatically become immediately due and payable without notice, presentment or demand of any kind. If any other Event of Default occurs and is continuing, then and in each and every such case, the
Indenture Trustee, at the written direction of (i) any of the Administrative Agent, (ii) the Majority Noteholders of all Outstanding Notes that are not Variable Funding Notes (excluding any Retained Notes) or (iii) the Majority
Noteholders for any Series of Variable Funding Notes Outstanding (excluding any Retained Notes), may declare the Note Balance of all the Outstanding Notes and all interest and principal accrued and unpaid (if any) thereon and all other amounts due
and payable under any Transaction Document to be due and payable immediately, and upon any such declaration each Note will become and will be immediately due and payable and the Revolving Period with respect to such Series or Class shall immediately
terminate, anything in this Base Indenture, the related Indenture Supplement(s) or in the Notes to the contrary notwithstanding. Such payments are subject to the allocation, deposits and payment sections of this Base Indenture and of the related
Indenture Supplement(s). 
 (b) At any time after such a declaration of acceleration has been made or an automatic acceleration has occurred
with respect to the Notes of any Series or Class and before a judgment or decree for payment of the money due has been obtained by the Indenture Trustee as hereafter provided in this Article VIII, the Majority Noteholders of all Outstanding
Notes, by written notice to the Issuer and the Indenture Trustee, may rescind and annul such declaration and its consequences if: 

  
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 (i) the Issuer has paid or deposited with the Indenture Trustee a sum
sufficient to pay (A) all overdue installments of interest on such Notes, (B) the principal of such Notes which has become due otherwise than by such declaration of acceleration, and interest thereon at the rate or rates prescribed
therefor by the terms of such Notes, to the extent that payment of such interest is lawful, (C) interest upon overdue installments of interest at the rate or rates prescribed therefore by the terms of such Notes to the extent that payment of
such interest is lawful, and (D) all sums paid by the Indenture Trustee hereunder and the reasonable compensation, expenses and disbursements of the Indenture Trustee or the bank serving as Indenture Trustee (in any of its capacities), their
agents and counsel, all other amounts due under Section 4.5; and 
 (ii) all Events of Default, other than the
nonpayment of the principal of such Notes which has become due solely by such acceleration, have been cured or waived as provided in Section 8.14. 

No such rescission will affect any subsequent default or impair any right consequent thereon. 

Section 8.3. Collection of Indebtedness and Suits for Enforcement by Indenture Trustee. 

The Issuer covenants that if: 

(a) the Issuer defaults in the payment of interest on any Notes when such interest becomes due and payable, which default
continues for a period of two (2) Business Days following written notice from the Indenture Trustee of such default; or 

(b) the Issuer defaults in the payment of the principal of any Series or Class of Notes on the Stated Maturity Date thereof;
then 
 the Issuer will, upon demand of the Indenture Trustee, pay (subject to the allocation provided in
Section 4.5(a)(2) hereof and any related Indenture Supplement) to the Indenture Trustee, for the benefit of the Noteholders of any such Notes, the whole amount then due and payable on any such Notes for principal and interest, together
with any Cumulative Interest Shortfall Amounts, unless otherwise specified in the applicable Indenture Supplement, and in addition thereto, will pay such further amount as will be sufficient to cover the costs and expenses of collection, including
the reasonable compensation, expenses, disbursements and advances of the Indenture Trustee and the bank serving as Indenture Trustee (in any of its capacities), their agents and counsel and all other amounts due under Section 4.5. 

If the Issuer fails to pay such amounts forthwith upon such demand, the Indenture Trustee may, in its own name and as trustee
of an express trust, institute a judicial proceeding for the collection of the sums so due and unpaid, and may directly prosecute such proceeding to judgment or final decree, and the Indenture Trustee may enforce the same against the Issuer or any
other obligor upon the Notes and collect the money adjudged or decreed to be payable in the manner provided by law and this Base Indenture. 

  
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 Section 8.4. Indenture Trustee May File Proofs of Claim. 

In case of the pendency of any Insolvency Event or other similar proceeding or event relative to the Issuer or any other obligor upon the Notes
or the property of the Issuer or of such other obligor, the Indenture Trustee (irrespective of whether the principal of the Notes will then be due and payable as therein expressed or by declaration or otherwise) will be entitled and empowered by
intervention in such proceeding or otherwise: 
 (a) to file and prove a claim for the whole amount of principal and interest owing and
unpaid in respect of the Notes and to file such other papers or documents as may be necessary and advisable in order to have the claims of the Indenture Trustee (including any claim for the reasonable compensation, expenses, disbursements and
advances of the Indenture Trustee, its agents and counsel and all other amounts due under Section 4.5) and of the Noteholders allowed in such judicial proceeding; and 

(b) to collect and receive any funds or other property payable or deliverable on any such claims and to distribute the same; and any receiver,
assignee, trustee, liquidator or other similar official in any such proceeding is hereby authorized by each Noteholder to make such payment to the Indenture Trustee and the bank serving as Indenture Trustee (in all its capacities), and in the event
that the Indenture Trustee consents to the making of such payments directly to the Noteholders, to pay to the Indenture Trustee and the bank serving as Indenture Trustee (in all its capacities) any amount due to it for the reasonable compensation,
expenses, disbursements and advances of the Indenture Trustee and the bank serving as Indenture Trustee (in all its capacities), their agents and counsel, and any other amounts due the Indenture Trustee and the bank serving as Indenture Trustee (in
all its capacities) under Section 4.5. 
 Nothing herein contained will be deemed to authorize the Indenture Trustee to
authorize or consent to or accept or adopt on behalf of any Noteholder any plan of reorganization, arrangement, adjustment or composition affecting the Notes or the rights of any Noteholder thereof, or to authorize the Indenture Trustee to vote in
respect of the claim of any Noteholder in any such proceeding. 
 Section 8.5. Indenture Trustee May Enforce Claims Without Possession of Notes.

 All rights of action and claims under this Base Indenture or the Notes of any Series or Class are subject to the Acknowledgment
Agreement and the Fannie Mae Requirements and may be prosecuted and enforced by the Indenture Trustee, without the possession of any of the Notes of such Series or Class or the production thereof in any proceeding relating thereto, and any such
proceeding instituted by the Indenture Trustee, will be brought in its own name as trustee of an express trust, and any recovery of judgment will, after provision for the payment of the reasonable compensation, expenses, disbursements and advances
of the Indenture Trustee and its respective agents and counsel, be for the ratable benefit of the Noteholders of the Notes of such Series or Class in respect of which such judgment has been recovered. 

  
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 Section 8.6. Application of Money Collected. 

Any money or other property collected by the Indenture Trustee pursuant to this Article VIII will be applied in accordance with
Section 4.5(a)(2), at the Final Payment Date fixed by the Indenture Trustee and, in case of the payment of such money on account of principal, interest or fees, upon presentation of the Notes of the related Series or Class and the
notation thereon of the payment if only partially paid and upon surrender thereof if fully paid. 
 Section 8.7. Sale of Collateral Requires Consent
of Noteholders. 
 Subject to the Acknowledgment Agreement and the Fannie Mae Requirements, the Indenture Trustee shall not sell
Collateral or cause the Issuer to sell Collateral following any Event of Default, except with the written consent, or at the direction of, the Noteholders as set forth in Section 8.13; provided, that the Indenture Trustee shall,
subject to the consent of Fannie Mae, sell Collateral or cause the Issuer to sell Collateral without prior consent of any of the Noteholders if an Event of Default under clauses (b), (c) or (q) of Section 8.1
occurs. Notwithstanding the foregoing, the consent of 100% of the Noteholders of the Outstanding Notes of each Series shall be required for any sale that does not generate sufficient proceeds to pay the Note Balance of all such Notes plus all
accrued and unpaid interest and other amounts owed in respect of such Notes and the Transaction Documents. If such direction has been given by the Noteholders of the requisite percentage of all Outstanding Notes, the Indenture Trustee shall, subject
to the Acknowledgment Agreement and the Fannie Mae Requirements and the terms of the Acknowledgment Agreement, cause the Issuer to sell Collateral pursuant to Section 8.15, and shall provide notice of this to each Note Rating Agency of
then Outstanding Notes. 
 Section 8.8. Limitation on Suits. 

No Noteholder will have any right to institute any proceeding, judicial or otherwise, with respect to this Base Indenture or any Note, or for
the appointment of a receiver or trustee or similar official, or for any other remedy hereunder, unless: 
 (a) such Noteholder has
previously given written notice to the Indenture Trustee of a continuing Event of Default with respect to Notes of such Noteholder’s Notes’ Series or Class; 

(b) the Noteholders of more than 50% of the Note Balance of the Outstanding Notes of each Series, measured by Voting Interests, have made
written request to the Indenture Trustee to institute proceedings in respect of such Event of Default in the name of the Indenture Trustee hereunder; 

(c) such Noteholder or Noteholders have offered to the Indenture Trustee indemnity reasonably satisfactory to it against the costs, expenses
and liabilities to be incurred in compliance with such request; and 

  
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 (d) the Indenture Trustee, for sixty (60) days after the Indenture Trustee has received
such notice, request and offer of indemnity, has failed to institute any such proceeding; it being understood and intended that no one or more Noteholders of Notes of such Series or Class will have any right in any manner whatsoever by virtue of, or
by availing of, any provision of this Base Indenture or any Note to affect, disturb or prejudice the rights of any other Noteholders of Notes, or to obtain or to seek to obtain priority or preference over any other such Noteholders or to enforce any
right under this Base Indenture or any Note, except in the manner herein provided and for the equal and proportionate benefit of all the Noteholders of all Notes. 

The rights set out in this Section 8.8 are further subject to Section 7.4(a). 

Section 8.9. Limited Recourse. 

Notwithstanding any other terms of this Base Indenture, the Notes, any other Transaction Documents or otherwise, the obligations of the Issuer
under the Notes, this Base Indenture and each other Transaction Document to which it is a party are limited recourse obligations of the Issuer, payable solely from the Trust Estate, and following realization of the Trust Estate and application of
the proceeds thereof in accordance with the terms of this Base Indenture, none of the Noteholders, the Indenture Trustee or any of the other parties to the Transaction Documents shall be entitled to take any further steps to recover any sums due but
still unpaid hereunder or thereunder, all claims in respect of which shall be extinguished and shall not thereafter revive. Subject to the foregoing and to the terms of the applicable Indenture Supplement, each Noteholder will, however, have the
absolute and unconditional right to receive payment of all amounts due with respect to the Notes pursuant and respect to the terms of the Indenture, which right shall not be impaired without the consent of each Noteholder and to initiate suit for
the enforcement of any such payment, which right shall not be impaired without the consent of such Noteholder. No recourse shall be had for the payment of any amount owing in respect of the Notes or this Base Indenture or for any action or inaction
of the Issuer against any officer, director, employee, equity holder or organizer of the Issuer or any of their successors or assigns for any amounts payable under the Notes or this Base Indenture. It is understood that the foregoing provisions of
this Section 8.9 shall not (i) prevent recourse to the Trust Estate for the sums due or to become due under any security, instrument or agreement which is part of the Trust Estate, (ii) prevent recourse to the Guarantor under
the PC Repo Guaranty or under the PMH Repo Guaranty or (iii) save as specifically provided therein, constitute a waiver, release or discharge of any indebtedness or obligation evidenced by the Notes or secured by this Base Indenture. It is
further understood that the foregoing provisions of this Section 8.9 shall not limit the right of any Person, to name the Issuer as a party defendant in any proceeding or in the exercise of any other remedy under the Notes or this Base
Indenture, so long as no judgment in the nature of a deficiency judgment or seeking personal liability shall be asked for or (if obtained) enforced against any such Person or entity. 

Section 8.10. Restoration of Rights and Remedies. 

If the Indenture Trustee or any Noteholder has instituted any proceeding to enforce any right or remedy under this Base Indenture and such
proceeding has been discontinued or abandoned for any reason, then and in every such case the Issuer, the Indenture Trustee and the Noteholders will, subject to any determination in such proceeding, be restored severally and respectively to their
former positions hereunder, and thereafter all rights and remedies of the Indenture Trustee and the Noteholders will continue as though no such proceeding had been instituted. 

  
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 Section 8.11. Rights and Remedies Cumulative. 

No right or remedy herein conferred upon or reserved to the Indenture Trustee or to the Noteholders is intended to be exclusive of any other
right or remedy, and every right and remedy will, to the extent permitted by law, be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or
employment of any right or remedy hereunder, or otherwise, will not prevent the concurrent assertion or employment of any other appropriate right or remedy. 

Section 8.12. Delay or Omission Not Waiver. 

No delay or omission of the Indenture Trustee or of any Noteholder to exercise any right or remedy accruing upon any Event of Default will
impair any such right or remedy or constitute a waiver of any such Event of Default or acquiescence therein. Every right and remedy given by this Article or by law to the Indenture Trustee or to the Noteholders may be exercised from time to time,
and as often as may be deemed expedient, by the Indenture Trustee or by the Noteholders, as the case may be. 
 Section 8.13. Control by
Noteholders. 
 Either 100% of the VFN Noteholders or the Majority Noteholders of all Outstanding Notes will have the right to direct the
time, method and place of conducting any proceeding for any remedy available to the Indenture Trustee, or exercising any trust or power conferred on the Indenture Trustee with respect to such Notes; provided that: 

(a) the Indenture Trustee will have the right to decline to follow any such direction if the Indenture Trustee, being advised by counsel,
determines that the action so directed may violate applicable law or would conflict with this Base Indenture or if the Indenture Trustee in good faith determines that the proceedings so directed would have a substantial likelihood of involving it in
personal liability or be unjustly prejudicial to the Noteholders not taking part in such direction, unless the Indenture Trustee has received indemnity satisfactory to it from the Noteholders; 

(b) the Indenture Trustee may take any other action permitted hereunder deemed proper by the Indenture Trustee which is not inconsistent with
such direction; and 
 (c) to the extent there are conflicting directions between 100% of the VFN Noteholders and the Majority Noteholders,
the Indenture Trustee will take its direction from 100% of the VFN Noteholders (excluding any Retained Notes). 
 The rights of the
Noteholders set out in this Section 8.13 are further subject to Section 7.4(a). 

  
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 Section 8.14. Waiver of Past Defaults. 

Together, the Majority Noteholders of all Outstanding Notes that are not Variable Funding Notes, the Majority Noteholders for any Series of
Variable Funding Notes Outstanding and the Administrative Agent may on behalf of the Noteholders of all such Notes waive any past default hereunder and its consequences, except a default not theretofore cured: 

(a) in the payment of the principal of or interest on any Note, or 

(b) in respect of a covenant or provision hereof which under Article XII cannot be modified or amended without the consent of the
Noteholder of each Outstanding Note. 
 Upon any such waiver, such default will cease to exist, and any Event of Default arising therefrom
will be deemed to have been cured, for every purpose of this Base Indenture; but no such waiver will extend to any subsequent or other default or impair any right consequent thereon. 

Section 8.15. Sale of Trust Estate. 

(a) The power to effect any Sale of any portion of the Trust Estate shall not be exhausted by any one or more Sales as to any portion of the
Trust Estate remaining unsold, but shall continue unimpaired until the entire Trust Estate shall have been sold or all amounts payable on the Notes and under this Base Indenture with respect thereto shall have been paid. The Indenture Trustee may
from time to time postpone any public Sale by public announcement made at the time and place of such Sale. 
 (b) Unless the Majority
Noteholders of all Outstanding Series have otherwise provided its written consent to the Indenture Trustee, at any public Sale of all or any portion of the Trust Estate at which a minimum bid equal to or greater than all amounts due to the Indenture
Trustee hereunder and the entire amount which would be payable to the Noteholders in full payment thereof in accordance with Section 8.6, on the Payment Date next succeeding the date of such sale, has not been received, the Indenture
Trustee shall prevent such sale by bidding an amount at least $1.00 more than the highest other bid in order to preserve the Trust Estate. 

(c) In connection with a Sale of all or any portion of the Trust Estate: 

(i) any of the Noteholders may bid for and purchase the property offered for Sale, and upon compliance with the terms of sale
may hold, retain and possess and dispose of such property, without further accountability; 
 (ii) the Indenture Trustee may
bid for and acquire the property offered for Sale in connection with any Sale thereof; 
 (iii) the Indenture Trustee shall
execute and deliver an appropriate instrument of conveyance transferring its interest in any portion of the Trust Estate in connection with a Sale thereof; 

(iv) the Indenture Trustee is hereby irrevocably appointed the agent and attorney-in-fact of the Issuer to transfer and convey
its interest in any portion of the Trust Estate in connection with a Sale thereof, and to take all action necessary to effect such Sale; and 

  
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 (v) no purchaser or transferee at such a Sale shall be bound to ascertain
the Indenture Trustee’s authority, inquire into the satisfaction of any conditions precedent or see to the application of any monies. 

(d) Notwithstanding anything to the contrary in this Base Indenture, and subject to the Acknowledgment Agreement and the Fannie Mae
Requirements, if an Event of Default has occurred and is continuing and the Notes have become due and payable or have been declared due and payable and such declaration and its consequences have not been rescinded and annulled, any proceeds received
by the Indenture Trustee with respect to a foreclosure, sale or other realization resulting from a transfer of the assets of the Trust Estate shall be allocated in accordance with Section 4.5(a)(2) hereof. The amount, if any, so
allocated to the Issuer shall be paid by the Indenture Trustee to or to the order of the Issuer free and clear of the Adverse Claim of this Base Indenture and the Noteholders shall have no claim or rights to the amount so allocated. 

Section 8.16. Undertaking for Costs. 

All parties to this Base Indenture agree, and each Noteholder by its acceptance thereof will be deemed to have agreed, that any court may in
its discretion require, in any suit for the enforcement of any right or remedy under this Base Indenture, or in any suit against the Indenture Trustee for any action taken or omitted by it as Indenture Trustee, the filing by any party litigant in
such suit of an undertaking to pay the costs of such suit, and that such court may in its discretion assess reasonable costs, including reasonable attorneys’ fees and expenses, against any party litigant in such suit, having due regard to the
merits and good faith of the claims or defenses made by such party litigant; but the provisions of this Section will not apply to any suit instituted by the Indenture Trustee, to any suit instituted by any Noteholder or group of Noteholders holding
in the aggregate more than 25% of the Note Balance of the Outstanding Notes of each Series (measured by Voting Interests) to which the suit relates, or to any suit instituted by any Noteholders for the enforcement of the payment of the principal of
or interest on any Note on or after the applicable Stated Maturity Date expressed in such Note. 
 Section 8.17. Waiver of Stay or Extension Laws.

 The Issuer covenants (to the extent that it may lawfully do so) that it will not at any time insist upon, or plead, or in any manner
whatsoever claim or take the benefit or advantage of, any stay or extension law wherever enacted, now or at any time hereafter in force, which may affect the covenants or the performance of this Base Indenture; and the Issuer (to the extent that it
may lawfully do so) hereby expressly waives all benefit or advantage of any such law, and covenants that it will not hinder, delay or impede the execution of any power herein granted to the Indenture Trustee, but will suffer and permit the execution
of every such power as though no such law had been enacted. 

  
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 Section 8.18. Notice of Waivers. 

Promptly (and in no event later than two (2) Business Days following the occurrence thereof), after any waiver of an Event of Default
pursuant to Section 4.12, or any rescission or annulment of a declaration of acceleration pursuant to Section 8.2(b), or any waiver of past default pursuant to Section 8.14, the Issuer will notify all related Note
Rating Agencies and the Disposition Manager in writing. 
 Article IX 

The Issuer 
 Section 9.1.
Representations and Warranties of Issuer. 
 The Issuer hereby makes the following representations and warranties for the benefit of the
Servicer, the Indenture Trustee, the Disposition Manager and the Noteholders. The representations shall be made as of the execution and delivery of this Base Indenture and of each Indenture Supplement, and as of each Funding Date and as of each date
of Grant and shall survive the Grant of a Security Interest in the Participation Certificates to the Indenture Trustee. 
 (a)
Organization and Good Standing. The Issuer is duly organized and validly existing as a statutory trust and is in good standing under the laws of the State of Delaware, with power and authority to own its properties and to conduct its business
as such properties are currently owned and such business is presently conducted. The Issuer has appointed the Administrator as the Issuer’s agent where notices and demands to or upon the Issuer in respect of the Notes of this Base Indenture may
be served. 
 (b) Power and Authority. The Issuer has and will continue to have the power and authority to execute and deliver this
Base Indenture and the other Transaction Documents to which it is or will be a party, and to carry out their respective terms; the Issuer had and has had at all relevant times and now has full power, authority and legal right to acquire, own, hold
and Grant a Security Interest in the Trust Estate and has duly authorized such Grant to the Indenture Trustee by all necessary action; and the execution, delivery and performance by the Issuer of this Base Indenture and each of the other Transaction
Documents to which it is a party has been duly authorized by all necessary action of the Issuer. 
 (c) Valid Transfers; Binding
Obligations. This Base Indenture creates a valid Grant of a Security Interest in the Participation Certificates which has been validly perfected and is a first priority Security Interest under the UCC, and in such other portion of the Collateral
as to which a Security Interest may be granted under the UCC, which security interest is enforceable against creditors of and purchasers from the Issuer, subject to applicable law. Each of the Transaction Documents to which the Issuer is a party
constitutes a legal, valid and binding obligation of the Issuer enforceable in accordance with its terms, except as enforceability may be limited by bankruptcy, insolvency, reorganization or other similar laws affecting creditors’ rights
generally or by general equity principles. 

  
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 (d) No Violation. The execution and delivery by the Issuer of this Base Indenture and
each other Transaction Document to which it is a party and the consummation of the transactions contemplated by this Base Indenture and the other Transaction Documents and the fulfillment of the terms of this Base Indenture and the other Transaction
Documents do not conflict with, result in any breach of any of the terms or provisions of, or constitute (with or without notice or lapse of time or both) a default under the Organizational Documents of the Issuer or any indenture, agreement or
other material instrument to which the Issuer is a party or by which it is bound, or result in the creation or imposition of any Adverse Claim upon any of its properties pursuant to the terms of any such indenture, agreement or other instrument
(other than this Base Indenture), or violate any law, order, judgment, decree, writ, injunction, award, determination, rule or regulation applicable to the Issuer of any court or of any federal or state regulatory body, administrative agency or
other governmental instrumentality having jurisdiction over the Issuer or its properties, which breach, default, conflict, Adverse Claim or violation could reasonably be expected to have a material Adverse Effect. 

(e) No Proceedings. There is no action, suit or proceeding before or by any court or governmental agency or body, domestic or foreign,
now pending, or to the Issuer’s knowledge, threatened, against or affecting the Issuer: (i) asserting the invalidity of this Base Indenture, the Notes or any of the other Transaction Documents to which the Issuer is a party,
(ii) seeking to prevent the issuance of the Notes or the consummation of any of the transactions contemplated by this Base Indenture, or any of the other Transaction Documents, (iii) seeking any determination or ruling which could
reasonably be expected to have a material Adverse Effect or could reasonably be expected to materially and adversely affect the condition (financial or otherwise), business or operations of the Issuer, or (iv) relating to the Issuer and which
could reasonably be expected to adversely affect the United States federal income tax attributes of the Notes. 
 (f) No Subsidiaries.
The Issuer has no subsidiaries. 
 (g) All Tax Returns True, Correct and Timely Filed. All tax returns required to be filed by the
Issuer in any jurisdiction have in fact been filed and all taxes, assessments, fees and other governmental charges upon the Issuer or upon any of its properties, and all income of franchises, shown to be due and payable on such returns have been
paid except for any such taxes, assessments, fees and charges the amount, applicability or validity of which is currently being contested in good faith by appropriate proceedings and with respect to which the Issuer had established adequate reserves
in accordance with GAAP. All such tax returns were true and correct in all material respects and the Issuer knows of no proposed additional tax assessment against it that could reasonably be expected to have a material adverse effect upon the
ability of the Issuer to perform its obligations hereunder nor of any basis therefor. The provisions for taxes on the books of the Issuer are in accordance with GAAP. 

(h) No Restriction on Issuer Affecting its Business. The Issuer is not a party to any contract or agreement, or subject to any charter
or other restriction, which materially and adversely affects its business, and the Issuer has not agreed or consented to cause any of its assets or properties to become subject to any Adverse Claim other than the Security Interest or any Permitted
Liens. 
 (i) Title to Participation Certificates. As represented by PMC in the PC Repurchase Agreement, immediately prior to the
Grant thereof to the Indenture Trustee as contemplated by this Base Indenture, subject to the Acknowledgment Agreement and the Fannie Mae Requirements with respect thereto, the Issuer had good and marketable title to each Participation Certificate,
free and clear of all Adverse Claims other than any Permitted Liens and rights of others. 

  
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 (j) Perfection of Security Interest. All filings and recordings that are necessary to
perfect the interest of the Issuer in the Participation Certificates and such other portion of the Trust Estate as to which a sale or security interest may be perfected by filing under the UCC, have been accomplished and are in full force and
effect. All filings and recordings against the Issuer required to perfect the Security Interest of the Indenture Trustee in such Participation Certificates and such other portion of the Trust Estate as to which a Security Interest may be perfected
by filing under the UCC, have been accomplished and are in full force and effect, and all such filings and recordings against the Issuer include the legends set forth as clauses (i) through (iii) of the fourth full paragraph
of the Granting Clause. Subject to the rights of Fannie Mae with respect thereto, other than the Security Interest granted to the Indenture Trustee pursuant to this Base Indenture, the Issuer has not pledged, assigned, sold, granted a
Security Interest in, or otherwise conveyed any of the Participation Certificates or any other Collateral. The Issuer has not authorized the filing of and is not aware of any financing statement filed against the Issuer that includes a description
of collateral covering the Participation Certificates other than (1) any financing statement related to the Security Interest granted to the Indenture Trustee hereunder or (2) that has been terminated. 

(k) Notes Authorized, Executed, Authenticated, Validly Issued and Outstanding. The Notes have been duly and validly authorized and, when
duly and validly executed and authenticated by the Indenture Trustee in accordance with the terms of this Base Indenture and delivered to and paid for by each purchaser as provided herein, will be validly issued and outstanding and entitled to the
benefits hereof. 
 (l) Location of Chief Executive Office and Records. The chief executive office of the Issuer and the office where
Issuer maintains copies of its corporate records, is located at the offices of the Administrator at 3043 Townsgate Road, Suite 300, Westlake Village, CA, 91361; provided that, at any time after the Closing Date, upon thirty
(30) days’ prior written notice to the Indenture Trustee and the Noteholders, the Issuer may relocate its jurisdiction of formation, and/or its principal place of business and chief executive office, and/or the office where it maintains
all of its records, to another location or jurisdiction, as the case may be, within the United States to the extent that the Issuer shall have taken all actions necessary or reasonably requested by the Indenture Trustee or the Majority Noteholders
of all Outstanding Notes to amend its existing financing statements and continuation statements, and file additional financing statements and to take any other steps reasonably requested by the Indenture Trustee or the Majority Noteholders of all
Outstanding Notes to further perfect or evidence the rights, claims or security interests of the Indenture Trustee and the Noteholders under any of the Transaction Documents. 

(m) Solvency. The Issuer: (i) is not “insolvent” (as such term is defined in 

§ 101(32)(A) of the Bankruptcy Code); (ii) is able to pay its debts as they become due; and (iii) does not have unreasonably
small capital for the business in which it is engaged or for any business or transaction in which it is about to engage. The Issuer is not Granting the Trust Estate to the Indenture Trustee with the intent to defraud, delay or hinder any of its
creditors. 
 (n) Separate Identity. The Issuer is operated as an entity separate from the Servicer and the Administrator. The Issuer
has complied with all covenants set forth in its Organizational Documents. 

  
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 (o) Name. The legal name of the Issuer is as set forth in this Base Indenture and the
Issuer does not use and has not used any other trade names, fictitious names, assumed names or “doing business as” names. 
 (p)
Governmental Authorization. Other than the filing of the financing statements (or financing statement amendments) required hereunder or under any other Transaction Document, no authorization or approval or other action by, and no notice to or
filing with, any governmental authority or regulatory body is required for (i) the due execution and delivery by Issuer of this Base Indenture and each other Transaction Document to which it is a party and (ii) the performance of its
obligations hereunder and thereunder. 
 (q) Accuracy of Information. All information heretofore furnished by the Issuer or any of its
Affiliates to the Indenture Trustee or the Noteholders for purposes of or in connection with this Base Indenture, any of the other Transaction Documents or any transaction contemplated hereby or thereby is, and all such information hereafter
furnished by the Issuer or any of its Affiliates to the Indenture Trustee or the Noteholders will be, true and accurate in every material respect on the date such information is stated or certified. 

(r) Use of Proceeds. No proceeds of any issuance of Notes or funding under a VFN hereunder will be used for a purpose that violates, or
would be inconsistent with, Regulation T, U or X promulgated by the Board of Governors of the Federal Reserve System from time to time. 

(s) Investment Company. The Issuer is not required to be registered as an “investment company” within the meaning of the
Investment Company Act, or any successor statute. 
 (t) Compliance with Law. The Issuer has complied in all material respects with
all applicable laws, rules, regulations, orders, writs, judgments, injunctions, decrees or awards to which it may be subject. 
 (u)
Investments. The Issuer does not own or hold, directly or indirectly (i) any capital stock or equity security of, or any equity interest in, any Person or (ii) any debt security or other evidence of indebtedness of any Person. 

(v) Transaction Documents. The PC Repurchase Agreement is the only agreement pursuant to which the Issuer directly or indirectly
purchases and receives contributions of Participation Certificates from PMC and the PC Repurchase Agreement represents the only agreement between PMC and the Issuer relating to the transfer of the Participation Certificates from PMC to the Issuer.

 (w) Limited Business. Since its formation, the Issuer has conducted no business other than entering into and performing its
obligations under the Transaction Documents to which it is a party, and such other activities as are incidental to the foregoing. The Transaction Documents to which it is a party, and any agreements entered into in connection with the transactions
that are permitted thereby, are the only agreements to which the Issuer is a party. 

  
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 Section 9.2. Liability of Issuer; Indemnities. 

(a) Obligations. The Issuer shall be liable in accordance with this Base Indenture only to the extent of the obligations in this Base
Indenture specifically undertaken by the Issuer in such capacity under this Base Indenture and shall have no other obligations or liabilities hereunder. The Issuer shall indemnify, defend and hold harmless the Indenture Trustee (in all its
capacities), the Calculation Agent, the Paying Agent, the Securities Intermediary, the Note Registrar, the Disposition Manager, the Noteholders (as applicable, with respect to the related Series of Notes) and the Trust Estate (each an
“Issuer Indemnified Party”) from and against any taxes that may at any time be asserted against the Indenture Trustee, the Calculation Agent, the Paying Agent, the Securities Intermediary, the Note Registrar, the Disposition
Manager or the Trust Estate with respect to the transactions contemplated in this Base Indenture or any of the other Transaction Documents, including any sales, gross receipts, general corporation, tangible or intangible personal property, privilege
or license taxes (but not including any taxes asserted with respect to, and as of the date of, the transfer of the Participation Certificates to the Trust Estate, the issuance and original sale of the Notes of any Class, or asserted with respect to
ownership of the Participation Certificates, or federal, state or local income or franchise taxes or any other tax, or other income taxes arising out of payments on the Notes of any Class, or any interest or penalties with respect thereto or arising
from a failure to comply therewith) and costs and expenses in defending against the same and in connection with the Issuer Indemnified Parties’ enforcement of any rights hereunder or under any Transaction Document, except that in no event shall
the Issuer be required to indemnify any Issuer Indemnified Party if the indemnification obligation under this Section 9.2(a) to such Issuer Indemnified Party is the result of a violation of law, gross negligence or willful misconduct by
such Issuer Indemnified Party. 
 (b) Notification and Defense. Promptly after any Issuer Indemnified Party shall have been served
with the summons or other first legal process or shall have received written notice of the threat of a claim in respect of which a claim for indemnity may be made against the Issuer under this Section 9.2, the Issuer Indemnified Party
shall notify the Issuer and the Administrator in writing of the service of such summons, other legal process or written notice, giving information therein as to the nature and basis of the claim, but failure so to notify the Issuer shall not relieve
the Issuer from any liability which it may have hereunder or otherwise, except to the extent that the Issuer is prejudiced by such failure so to notify the Issuer. The Issuer will be entitled, at its own expense, to participate in the defense of any
such claim or action and, to the extent that it may wish, to assume the defense thereof, with counsel reasonably satisfactory to such Issuer Indemnified Party, and, after notice from the Issuer to such Issuer Indemnified Party that the Issuer wishes
to assume the defense of any such action, the Issuer will not be liable to such Issuer Indemnified Party under this Section 9.2 for any legal or other expenses subsequently incurred by such Issuer Indemnified Party in connection with the
defense of any such action unless (i) the defendants in any such action include both the Issuer Indemnified Party and the Issuer, and the Issuer Indemnified Party (upon the advice of counsel) shall have reasonably concluded that there may be
legal defenses available to it that are different from or additional to those available to the Issuer, or one or more Issuer Indemnified Parties, and which in the reasonable judgment of such counsel 

  
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are sufficient to create a conflict of interest for the same counsel to represent both the Issuer and such Issuer Indemnified Party, (ii) the Issuer shall not have employed counsel
reasonably satisfactory to the Issuer Indemnified Party to represent the Issuer Indemnified Party within a reasonable time after notice of commencement of the action, or (iii) the Issuer has authorized the employment of counsel for the Issuer
Indemnified Party at the expense of the Issuer; then, in any such event, such Issuer Indemnified Party shall have the right to employ its own counsel in such action, and the reasonable fees and expenses of such counsel shall be borne by the Issuer;
provided, however, that the Issuer shall not in connection with any such action or separate but substantially similar or related actions arising out of the same general allegations or circumstances, be liable for any fees and expenses
of more than one firm of attorneys at any time for all Issuer Indemnified Parties. Each Issuer Indemnified Party, as a condition of the indemnity agreement contained herein, shall use its commercially reasonable efforts to cooperate with the Issuer
in the defense of any such action or claim. The Issuer shall not, without the prior written consent of any Issuer Indemnified Party, effect any settlement of any pending or threatened proceeding in respect of which such Issuer Indemnified Party is
or could have been a party and indemnity could have been sought hereunder by such Issuer Indemnified Party, unless such settlement includes an unconditional release of such Issuer Indemnified Party from all liability on claims that are the subject
matter of such proceeding or threatened proceeding. 
 (c) Expenses. Indemnification under this Section shall include, without
limitation, reasonable and customary out-of-pocket fees and expenses of counsel and expenses of litigation. If the Issuer has made any indemnity payments pursuant to this Section and the recipient thereafter collects any of such amounts from others,
the recipient shall promptly repay such amounts collected to the Issuer, without interest. 
 (d) Survival. The provisions of this
Section 9.2 shall survive the termination of this Base Indenture. 
 Section 9.3. Merger or Consolidation, or Assumption of the
Obligations, of the Issuer. 
 Any Person (a) into which the Issuer may be merged or consolidated, (b) which may result from
any merger, conversion or consolidation to which the Issuer shall be a party, or (c) which may succeed to all or substantially all of the business or assets of the Issuer, which Person in any of the foregoing cases executes an agreement of
assumption to perform every obligation of the Issuer under this Base Indenture, shall be the successor to the Issuer under this Base Indenture without the execution or filing of any document or any further act on the part of any of the parties to
this Base Indenture, except that if the Issuer in any of the foregoing cases is not the surviving entity, then the surviving entity shall execute an agreement of assumption to perform every obligation of the Issuer under the Transaction Documents,
and the surviving entity shall have taken all actions necessary or reasonably requested by the Issuer, the Majority Noteholders of all Outstanding Notes or the Indenture Trustee to amend its existing financing statements and continuation statements,
and file additional financing statements and to take any other steps reasonably requested by the Issuer, the Majority Noteholders of all Outstanding Notes or the Indenture Trustee to further perfect or evidence the rights, claims or security
interests of the Issuer, the Noteholders or the Indenture Trustee under any of the Transaction Documents. The Issuer (i) shall provide notice of any merger, consolidation or succession pursuant to this Section 9.3 to each

  
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Note Rating Agency that has rated any then-Outstanding Notes, the Indenture Trustee and the Noteholders, (ii) for so long as the Notes are Outstanding, (1) shall receive from each Note
Rating Agency rating Outstanding Notes a letter to the effect that such merger, consolidation or succession will not result in a qualification, downgrading or withdrawal of the then current ratings assigned by such Note Rating Agency to any
Outstanding Notes or (2) if the Administrator and the Administrative Agents determine in their reasonable judgment that an applicable Note Rating Agency no longer provides such letters as described in the foregoing clause (1),
(a) the Administrator shall provide notice of such new merger, consolidation or succession to the related Note Rating Agency and (b) each Administrative Agent shall have provided its prior written consent to such merger, consolidation or
succession; provided, that the Issuer provides an Issuer Certificate to the effect that any such merger, consolidation or succession will not have a material Adverse Effect on the Outstanding Notes, (iii) shall obtain an Opinion of
Counsel addressed to the Indenture Trustee and reasonably satisfactory to the Indenture Trustee, that such merger, consolidation or succession complies with the terms hereof and one or more Opinions of Counsel updating or restating all opinions
delivered on the date of this Base Indenture with respect to corporate matters, enforceability of Transaction Documents against the Issuer, and the grant by the Issuer of a valid security interest in the Participation Certificates to the Indenture
Trustee and the perfection of such security interest and related matters, (iv) shall receive from the Majority Noteholders of all Outstanding Notes their prior written consent to such merger, consolidation or succession, absent which consent,
which may not be unreasonably withheld or delayed, the Issuer shall not become a party to such merger, consolidation or succession and (v) shall obtain an Issuer Tax Opinion. 

Section 9.4. Issuer May Not Own Notes. 

The Issuer may not become the owner or pledgee of one or more of the Notes (other than any Retained Note). Any Person Controlling, Controlled
by or under common Control with the Issuer may, in its individual or any other capacity, become the owner or pledgee of one or more Notes with the same rights as it would have if it were not an Affiliate of the Issuer, except as otherwise
specifically provided in the definition of the term “Noteholder.” The Notes so owned by or pledged to such Controlling, Controlled or commonly Controlled Person shall have an equal and proportionate benefit under the provisions of this
Base Indenture, without preference, priority or distinction as among any of the Notes, except as set forth herein with respect to, among other things, rights to vote, consent or give directions to the Indenture Trustee as a Noteholder. 

Section 9.5. Covenants of Issuer. 

(a) Organizational Documents; Unanimous Consent. The Issuer hereby covenants that its Organizational Documents provide that they may not
be amended or modified without (i) notice to the Indenture Trustee and each Note Rating Agency that is at that time rating any Outstanding Notes, and (ii) the prior written consent of the Administrative Agent, unless and until this Base
Indenture shall have been satisfied, discharged and terminated. The Issuer will at all times comply with the terms of its Organizational Documents. In addition, notwithstanding any other provision of this Section 9.5 and any provision of
law, the Issuer shall not take any action described in Section 4.1 of the Issuer’s Organizational Documents or do any of the following unless the Owners (as such term is defined in the Issuer’s Organizational Documents), the

  
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Administrative Agent and the applicable Majority Noteholders as set forth in the Transaction Documents consent to such action: (A) dissolve or liquidate, in whole or in part, or institute
proceedings to be adjudicated bankrupt or insolvent, (B) consent to the institution of bankruptcy or insolvency proceedings against it, (C) file a petition seeking, or consent to, reorganization or relief under any applicable federal,
state or foreign law relating to bankruptcy or similar matters, (D) consent to the appointment of a receiver, liquidator, assignee, trustee, sequestrator (or other similar official) of the Issuer or a substantial part of its property, (E) make
any assignment for the benefit of creditors, (F) admit in writing its inability to pay its debts generally as they become due, or (G) take any action in furtherance of the actions set forth in clauses (A) through
(F) above; or (1) merge or consolidate with or into any other person or entity or sell or lease its property or all or substantially all of its assets to any person or entity; or (2) modify any provision of its Organizational
Documents. 
 (b) Preservation of Existence. The Issuer hereby covenants to do or cause to be done all things necessary on its part to
preserve and keep in full force and effect its rights and franchises as a statutory trust under the laws of the State of Delaware, and to maintain each of its licenses, approvals, permits, registrations or qualifications in all jurisdictions in
which its ownership or lease of property or the conduct of its business requires such licenses, approvals, registrations or qualifications, except for failures to maintain any such licenses, approvals, registrations or qualifications which,
individually or in the aggregate, would not have a material Adverse Effect. 
 (c) Compliance with Laws. The Issuer hereby covenants
to comply in all material respects with all applicable laws, rules and regulations and orders of any governmental authority, the noncompliance with which would have a material Adverse Effect or a material adverse effect on the business, financial
condition or results of operations of the Issuer. 
 (d) Payment of Taxes. The Issuer hereby covenants to pay and discharge promptly
or cause to be paid and discharged promptly all taxes, assessments and governmental charges or levies imposed upon the Issuer or upon its income and profits, or upon any of its property or any part thereof, before the same shall become in
default, provided that the Issuer shall not be required to pay and discharge any such tax, assessment, charge or levy so long as the validity or amount thereof shall be contested in good faith by appropriate proceedings and the Issuer shall
have set aside on its books adequate reserves with respect to any such tax, assessment, charge or levy so contested. 
 (e)
Investments. The Issuer hereby covenants that it will not, without the prior written consent of the Majority Noteholders of all Outstanding Notes, acquire or hold any indebtedness for borrowed money of another person, or any capital stock,
debentures, partnership interests or other ownership interests or other securities of any Person, other than Permitted Investments as provided hereunder and the Participation Certificates acquired under the PC Repurchase Agreement. 

(f) Keeping Records and Books of Account. The Issuer hereby covenants and agrees to maintain and implement administrative and operating
procedures (including an ability to recreate records evidencing the Participation Certificates in the event of the destruction or loss of the originals thereof) and keep and maintain, all documents, books, records and other information reasonably
necessary or advisable for the collection of all Participation Certificates (including records adequate to permit the daily identification of all collections with respect to, and adjustments of amounts payable under, each Participation Certificate).
The Administrator shall ensure compliance with this Section 9.5(f). 

  
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 (g) Employee Benefit Plans. The Issuer hereby covenants and agrees to comply in all
material respects with the provisions of ERISA, the Code, and all other applicable laws, and the regulations and interpretations thereunder to the extent applicable, with respect to each “employee benefit plan” as defined in section 3(3)
of ERISA. 
 (h) No Release. The Issuer shall not take any action and shall use its best efforts not to permit any action to be taken
by others that would release any Person from any of such Person’s covenants or obligations under any Transaction Document, Fannie Mae Lender Contract or other document, instrument or agreement included in the Trust Estate, or which would result
in the amendment, hypothecation, subordination, termination or discharge of, or impair the validity or effectiveness of, any such document, instrument or agreement. 

(i) Separate Identity. The Issuer acknowledges that the Secured Parties are entering into the transactions contemplated by this Base
Indenture in reliance upon the Issuer’s identity as a legal entity that is separate from the Administrator or the Servicer (each, a “Facility Entity”). Therefore, from and after the date of execution and delivery of this
Base Indenture, the Issuer shall take all reasonable steps to maintain the Issuer’s identity as a separate legal entity and to make it manifest to third parties that the Issuer is an entity with assets and liabilities distinct from those of
each Facility Entity and not a division of a Facility Entity. 
 (j) Compliance with and Enforcement of Transaction Documents. The
Issuer hereby covenants and agrees to comply in all respects with the terms of, employ the procedures outlined in and enforce the obligations of the parties to all of the Transaction Documents to which the Issuer is a party, and take all such action
to such end as may be from time to time reasonably requested by the Indenture Trustee, and/or the Majority Noteholders of all Outstanding Notes, maintain all such Transaction Documents in full force and effect and make to the parties thereto such
reasonable demands and requests for information and reports or for action as the Issuer is entitled to make thereunder and as may be from time to time reasonably requested by the Indenture Trustee. 

(k) No Sales, Liens, etc. Against Participation Certificates and Trust Property. The Issuer hereby covenants and agrees, except for
releases specifically permitted hereunder, not to sell, assign (by operation of law or otherwise) or otherwise dispose of, or create or suffer to exist, any Adverse Claim (other than the Security Interest created hereby or any Permitted Liens) upon
or with respect to, any Participation Certificate or Trust Property, or any interest in either thereof, or upon or with respect to any Trust Account, or assign any right to receive income in respect thereof. The Issuer shall promptly, but in no
event later than two (2) Business Days after a Responsible Officer has obtained actual knowledge thereof, notify the Indenture Trustee of the existence of any Adverse Claim on any Participation Certificate or Trust Estate, and the Issuer shall
defend the right, title and interest of each of the Issuer and the Indenture Trustee in, to and under the Participation Certificates and Trust Estate, against all claims of third parties. 

  
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 (l) No Change in Business. The Issuer covenants that it shall not make any change in
the character of its business. 
 (m) No Change in Name, etc.; Preservation of Security Interests. The Issuer covenants that it shall
not make any change to its company name, or use any trade names, fictitious names, assumed names or “doing business as” names. The Issuer will from time to time, at its own expense, execute and file such additional financing statements
(including continuation statements) as may be necessary to ensure that at any time, the interest of the Issuer in all of the Participation Certificates and such other portion of the Trust Estate as to which a sale or Security Interest may be
perfected by filing under the UCC, and the Security Interest of the Indenture Trustee in all of the Participation Certificates and such other portion of the Trust Estate as to which a Security Interest may be perfected by filing under the UCC, are
fully protected. 
 (n) No Institution of Insolvency Proceedings. The Issuer covenants that it shall not institute Insolvency
Proceedings with respect to the Issuer or any Affiliate thereof or consent to the institution of Insolvency Proceedings against the Issuer or any Affiliate thereof or take any action in furtherance of any such action, or seek dissolution or
liquidation in whole or in part of the Issuer or any Affiliate thereof. 
 (o) Money for Note Payments To Be Held in Trust. The Issuer
shall cause each Paying Agent other than the Indenture Trustee to execute and deliver to the Indenture Trustee an instrument in which such Paying Agent shall agree with the Indenture Trustee, subject to the provisions of this Section, that such
Paying Agent shall: 
 (i) hold all sums held by it in respect of payments on Notes in trust for the benefit of the
Noteholders entitled thereto until such sums shall be paid to such Persons or otherwise disposed of as herein provided; 

(ii) give the Indenture Trustee notice of any default by the Issuer (or any other obligor upon the Notes) in the making of any
payment; and 
 (iii) at any time during the continuance of any such default, upon the written request of the Indenture
Trustee, forthwith pay to the Indenture Trustee all sums so held in trust by such Paying Agent. 
 The Issuer may at any time, for the purpose of obtaining
the satisfaction and discharge of this Base Indenture or for any other purpose, pay, or direct any Paying Agent to pay, to the Indenture Trustee all sums held in trust by such Paying Agent, such sums to be held by the Indenture Trustee upon the same
trusts as those upon which such sums were held by such Paying Agent; and, upon such payment by any Paying Agent to the Indenture Trustee, such Paying Agent shall be released from all further liability with respect to such money. 

(p) Protection of Trust Estate. The Issuer shall from time to time execute and deliver to the Indenture Trustee and the Administrative
Agent all such supplements and amendments hereto (a copy of which shall be provided to the Noteholders) and all such financing statements, continuation statements, instruments of further assurance and other instruments, and shall take such other
action as is necessary or advisable to: 

  
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 (i) Grant more effectively all or any portion of the Trust Estate; 

(ii) maintain or preserve the Security Interest or carry out more effectively the purposes hereof; 

(iii) perfect, publish notice of, or protect the validity of any Grant made or to be made by this Base Indenture; 

(iv) enforce any of the Participation Certificates or, where appropriate, any Security Interest in the Trust Estate and the
proceeds thereof; 
 (v) promptly to amend, or to cause to be amended, as necessary, any filings or recordings against the
Issuer relating to the Grant necessary to conform to the requirements of Fannie Mae, including any legend required by Fannie Mae to be included in such filings or recordings; or 

(vi) preserve and defend title to the Trust Estate and the rights of the Indenture Trustee and the Noteholders therein against
the claims of all persons and parties. 
 (q) Investment Company Act. The Issuer shall conduct its operations in a manner which shall
not subject it to registration as an “investment company” under the Investment Company Act. 
 (r) Payment of Review and Renewal
Fees. The Issuer shall pay or cause to be paid to each Note Rating Agency that has rated Outstanding Notes, the annual rating review and renewal fee in respect of such Notes, if any. 

(s) No Subsidiaries. The Issuer shall not form or hold interests in any subsidiaries. 

(t) No Indebtedness. The Issuer shall not incur any indebtedness other than the Notes, and shall not guarantee any other Person’s
indebtedness or incur any capital expenditures. 
 (u) Cooperation with Effectuating a Release. If any filing or recordings against
the Issuer have been made relating to the Grant, within five (5) Business Days after the earliest of any of the following dates or events that occur: (i) the effective date of any transfer of Issuer responsibility pursuant to the
Acknowledgment Agreement; (ii) the date on which the Secured Party receives notice from Fannie Mae of any termination of Secured Party’s or Servicer’s rights under the Acknowledgment Agreement, or otherwise; or (iii) the date on
which Secured Party receives notice of the termination by Fannie Mae of Servicer’s redemption, equitable, legal or other right, title or interest in the Subject Mortgages, then the Issuer shall, or shall cause to be filed for recording, in the
appropriate recording office, a fully and complete release of such security interest, and of any other right, title or interest of Secured Party in the Subject Mortgages, and shall deliver to Fannie Mae written confirmation of such filing.
Notwithstanding the foregoing, if the Issuer believes the Secured Party’s Security Interest is being challenged or is likely to be challenged by anyone other than Fannie Mae, then the Issuer may request that Fannie Mae agree to a deferral of
the filings required by this subsection, which deferral shall be granted at the sole discretion of Fannie Mae. 

  
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 (v) Issuer Tax Opinion. No undertaking that would cause a Retained Note to become
issued and outstanding for United States federal income tax purposes will be permitted without the delivery of an Issuer Tax Opinion. 
 (w)
Delivery of the Asset File. The Issuer shall deliver the items set forth in Section 2.2(a) to the Indenture Trustee within two (2) Business Days of the execution and delivery of this Base Indenture. 

Article X 
 The
Administrator and Servicer 
 Section 10.1. Representations and Warranties of PMC, as Administrator and as Servicer. 

PMC, as Administrator and as Servicer, hereby makes the following representations and warranties for the benefit of the Indenture Trustee, as
of the Closing Date, and as of the date of each Grant of Participation Certificates to the Indenture Trustee pursuant to this Base Indenture. 

(a) Organization and Good Standing. PMC is a corporation, duly incorporated, validly existing and in good standing under the laws of the
State of Delaware. PMC, as Servicer, is duly qualified to do business and is in good standing (or is exempt from such requirements) and has obtained all necessary licenses and approvals in each jurisdiction in which the failure so to qualify, or to
obtain such licenses or approvals, would have a material Adverse Effect. 
 (b) Power and Authority; Binding Obligation. PMC has the
power and authority to make, execute, deliver and perform its obligations under this Base Indenture and any related Indenture Supplement and each other Transaction Document to which it is a party and all of the transactions contemplated hereunder
and thereunder, and has taken all necessary corporate action to authorize the execution, delivery and performance of this Base Indenture and each Indenture Supplement and each other Transaction Document to which it is a party; this Base Indenture
and each Indenture Supplement and each other Transaction Document to which it is a party constitutes a legal, valid and binding obligation of PMC, enforceable against PMC in accordance with its terms, except as enforceability may be limited by
applicable bankruptcy, insolvency, reorganization, moratorium or other similar laws now or hereafter in effect affecting the enforcement of creditors’ rights in general and except as such enforceability may be limited by general principles of
equity (whether considered in a proceeding at law or in equity) or by public policy with respect to indemnification under applicable securities laws. 

  
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 (c) No Violation. The execution and delivery of this Base Indenture and each
Indenture Supplement and each other Transaction Document to which it is a party by PMC and its performance of its obligations under this Base Indenture and each Indenture Supplement and each other Transaction Document to which it is a party will not
(i) violate PMC’s certificate of incorporation, bylaws or other organizational documents or (ii) constitute a default (or an event which, with notice or lapse of time, or both, would constitute a default) under, or result in the
breach of, any material contract, agreement or other instrument to which PMC is a party or which may be applicable to PMC or any of its assets, or any and all instruments, agreements, invoices or other writings which give rise to or otherwise
evidence any of the MSRs, or (iii) violate any statute, ordinance or law or any rule, regulation, order, writ, injunction or decree of any court or of any public, governmental or regulatory body, agency or authority applicable to PMC or its
properties except, with respect to clauses (ii) and (iii), for such defaults, breaches or violations that would not reasonably be expected to have a material Adverse Effect. 

(d) No Proceedings. No proceedings, investigations or litigation before any court, tribunal or governmental body is currently pending,
nor to the knowledge of PMC is threatened against PMC, nor is there any such proceeding, investigation or litigation currently pending, nor, to the knowledge of PMC, is any such proceeding, investigation or litigation threatened against PMC with
respect to this Base Indenture, any Indenture Supplement or any other Transaction Document or the transactions contemplated hereby or thereby that could reasonably be expected to have a material Adverse Effect. 

(e) No Consents Required; Fannie Mae Approvals. Except with respect to the Acknowledgment Agreement, no authorization, consent,
approval, or other action by, and no notice to or filing with, any court, governmental authority or regulatory body or other Person domestic or foreign, including HUD or Fannie Mae, is required for the execution, delivery and performance by PMC of
or compliance by PMC with this Base Indenture, any Indenture Supplement or the consummation of the transactions contemplated by this Base Indenture, any Indenture Supplement except for (i) consents, approvals, authorizations and orders which
have obtained in connection with transactions contemplated by the Transaction Documents (including the Acknowledgment Agreement), (ii) filings to perfect the security interest created by this Base Indenture, and (iii) authorizations,
consents, approvals, filings, notices, or other actions the failure to obtain such consents, approvals, authorizations and orders would not reasonably be expected to have a material Adverse Effect. 

(f) Information. No written statement, report or other document furnished or to be furnished pursuant to this Base Indenture or any
other Transaction Document to which it is a party by PMC contains or will contain any statement that is or will be inaccurate or misleading in any material respect. 

(g) Default. The Administrator is not in default with respect to any material contract under which a default should reasonably be
expected to have a material adverse effect on the ability of the Administrator or the Servicer to perform its duties under this Base Indenture or any Indenture Supplement, or with respect to any order of any court, administrative agency, arbitrator
or governmental body which would have a material adverse effect on the transactions contemplated hereunder, and no event has occurred which with notice or lapse of time or both would constitute such a default with respect to any such contract or
order of any court, administrative agency, arbitrator or governmental body. 

  
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 (h) Foreign Corrupt Practices Act. To the extent applicable, neither PMC nor any
subsidiary thereof (collectively, the “FCPA Entities” and individually a “FCPA Entity”), or any employees, directors, or officers of any FCPA Entity, or to the knowledge of any FCPA Entity, any of its
agents or representatives or any subsidiary of any FCPA Entity, is aware of, has taken, or will take any action, directly or indirectly, that would result in a violation by such persons of the Foreign Corrupt Practices Act of 1977, as amended, and
the rules and regulations thereunder (the “FCPA”); and PMC and its subsidiaries and Affiliates have conducted their businesses in compliance with the FCPA and have instituted and maintained policies and procedures designed to
ensure continued compliance therewith. 
 (i) Anti-Money Laundering. The operations of PMC are conducted and, to its knowledge, have
been conducted in all material respects in compliance with the applicable anti- money laundering statutes of all jurisdictions to which PMC is subject and the rules and regulations thereunder, including the Bank Secrecy Act, as amended by Title III
of the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 (USA PATRIOT Act) (collectively, the “U.S. Anti-Money Laundering Laws”), and no action, suit or
proceeding by or before any court or governmental agency, authority or body or any arbitrator involving PMC with respect to the U.S. Anti-Money Laundering Laws is pending or, to the knowledge of PMC, threatened. 

(j) Sanctions. Neither PMC nor its Subsidiaries, nor, to its knowledge, any of its or its Subsidiaries’ directors, officers,
agents, Subsidiaries or employees, is a Person that is, or is owned or controlled by Persons that are (1) the subject of any sanctions administered or enforced by the Office of Foreign Assets Control of the U.S. Department of the Treasury
(“OFAC”), the 
 U.S. Department of State, the U.S. Department of Commerce, the United Nations Security Council, the
European Union or Her Majesty’s Treasury (collectively, “Sanctions”) or (2) located, organized or resident in a country or territory that is, or whose government is, the subject of Sanctions; including the Crimea
region of Ukraine, Cuba, Iran, North Korea and Syria. 
 (k) No Adverse Actions. PMC has not received a notice from Fannie Mae
indicating any adverse fact or circumstance in respect of PMC which adverse fact or circumstance may reasonably be expected to entitle Fannie Mae to terminate PMC with cause or with respect to which such adverse fact or circumstance has caused
Fannie Mae to threaten to terminate, or consider the termination of, PMC in such notice. 
 (l) Fannie Mae Set Off Rights. PMC has no
actual notice, including any notice received from Fannie Mae, or any reason to believe, that, other than in the normal course of PMC’s business, any circumstances exist that would result in PMC being liable to Fannie Mae for any amount due by
reason of: (i) any breach of its obligations to Fannie Mae under the Fannie Mae Lender Contract or any other similar contracts relating to any of the Portfolio Mortgage Loans, (ii) any unperformed obligation with respect to any of the
Portfolio Mortgage Loans, and (iii) any other unmet obligations to Fannie Mae under the Fannie Mae Lender Contract or any other similar contracts relating to the Portfolio Mortgage Loans. 

  
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 (m) Fannie Mae. PMC is a seller/servicer approved by Fannie Mae and a lender approved
by HUD. PMC is in good standing to service mortgages for Fannie Mae and HUD, as applicable. PMC has not been suspended as a seller/servicer by Fannie Mae or HUD on and after the date on which PMC first obtained such approval from Fannie Mae or HUD,
as applicable. PMC is not under review or investigation outside of due course and does not have knowledge of imminent or future investigation outside of due course, by Fannie Mae or HUD on and after the date on which PMC became a Fannie Mae or HUD
approved seller/servicer or lender, as the context may require. The requirements of this Section 10.1(m) shall only be applicable to PMC with respect to HUD if and to the extent that any FHA Loans, USDA Loans or VA Loans are Subject
Mortgages. 
 (n) Fannie Mae Remittance and Reporting. With respect to each Portfolio Mortgage Loan, PMC has remitted to Fannie Mae
and applicable investors in the securities representing interests in the Portfolio Mortgage Loans and all other applicable Persons (i) all principal and interest payments received to which an investor or such other Person is entitled under the
Fannie Mae Lender Contract, including any guaranty fees, and (ii) all advances of principal and interest required by such Fannie Mae Lender Contract. In accordance with the Fannie Mae Lender Contract, PMC has prepared and submitted all reports
in connection with such payments required by the Fannie Mae Lender Contract. 
 Section 10.2. Covenants of PMC, as Administrator and as Servicer.

 (a) Amendments to PC Documents. The Servicer hereby covenants and agrees not to amend any PC Documents without the prior
written consent of the Majority Noteholders of all Outstanding Notes, except for the following purposes and with (i) the consent of the Issuer (evidenced by its execution of such amendment), the Indenture Trustee and the Administrative Agent,
(ii) upon delivery of an Issuer Tax Opinion (unless such Issuer Tax Opinion is waived by either 100% of the VFN Noteholders or the Majority Noteholders of all Outstanding Notes) and (iii) upon delivery by the Issuer to the Indenture
Trustee of an Officer’s Certificate to the effect that the Issuer reasonably believes that such amendment could not have a material Adverse Effect and is not reasonably expected to have a material Adverse Effect on the Noteholders of the Notes
at any time in the future: 
 (A) to evidence the succession of another Person to the Issuer, and the assumption by any such successor of the
covenants of the Issuer in the PC Documents; 
 (B) to add to the covenants of the Issuer, or to surrender any right or power under the PC
Documents conferred upon the Issuer, for the benefit of the Noteholders; 
 (C) to cure any ambiguity, to correct or supplement any provision
under the PC Documents which may be inconsistent with any other provision therein, or to make any other provisions with respect to matters or questions arising under the PC Repurchase Agreement; 

(D) to prevent the Issuer from being subject to tax on its net income as an association (or publicly traded partnership) taxable as a
corporation or a taxable mortgage pool taxable as a corporation, each for United States federal income tax purposes; 

  
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 (E) determined by the Administrator to be reasonably necessary to maintain the rating
currently assigned by the applicable Note Rating Agency and/or to avoid such Class of Notes being placed on negative watch by such Note Rating Agency; or 

(F) as otherwise provided in the related PC Documents. 

In addition
to the foregoing, the Servicer may effect amendments to the PC Documents without the prior written consent of the Majority Noteholders of each Series of Outstanding Term Notes to cure any inconsistency between any PC Document and any provision of
the Acknowledgment Agreement (i) upon delivery of a certification relating to the purpose of such amendment by the Servicer to the Indenture Trustee, to which the Indenture Trustee may conclusively rely, (ii) with the consent of the Issuer
(evidenced by its execution of such amendment), the Indenture Trustee and the Administrative Agent, and (iii) with the consent of the VFN Noteholders and the Majority Holders of the 2018-FT1 Notes to the extent such Notes remain
Outstanding. 
 (b) Maintenance of Security Interest. The Administrator
shall from time to time, at its own expense, file such additional financing statements (including continuation statements) as may be necessary to ensure that at any time, the Security Interest of the Indenture Trustee (on behalf of itself and the
Noteholders) in all of the Participation Certificates and the other Collateral is fully protected in accordance with the UCC and that the Security Interest of the Indenture Trustee in the Participation Certificates and the rest of the Trust Estate
remains perfected and of first priority. The Administrator shall take all steps necessary to ensure compliance with Section 9.5(m). 

(c) Regulatory Reporting Compliance. The Servicer shall, on or before the last Business Day of the fifth (5th) month following the
end of each of the Servicer’s fiscal years (December 31), beginning with the fiscal year ending in 2017, deliver to the Indenture Trustee and the Interested Noteholders, as applicable, a copy of the results of any Uniform Single Attestation
Program for Mortgage Bankers or an Officer’s Certificate that satisfies the requirements of Item 1122(a) of Regulation AB, an independent public accountant’s report that satisfies the requirements of Item 1123 of Regulation AB,
or similar review conducted on the Servicer by its accountants, and such other reports as the Servicer may prepare relating to its servicing functions as the Servicer. 

(d) Compliance with PC Documents. The Servicer shall not fail to comply with any obligation as the servicer under each of the PC
Documents, if such failure would have a material Adverse Effect. The Servicer shall immediately notify the Indenture Trustee, the Disposition Manager and the Administrative Agent of its receipt of a notice of termination under the Fannie Mae Lender
Contract. The Indenture Trustee shall forward any such notification to each Noteholder. 
 (e) Compliance with Obligations. PMC shall
comply with all of its other obligations and duties set forth in this Base Indenture and any other Transaction Document. The Administrator shall not permit the Issuer to engage in activities that could violate its covenants in this Base Indenture.

  
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 (f) No Transfer of Servicing. Servicer shall not voluntarily transfer servicing under
the Fannie Mae Lender Contract, except with prior written consent of the Administrative Agent, in its sole discretion. If PMH repurchases the Sold MSR Excess Spread PC pursuant to the PMH Repurchase Agreement, PMC shall not release the Sold MSR
Excess Spread PC unless and until the PMH Repurchase Price has been deposited in the Collection and Funding Account. 
 (g) Notice of
Servicer Termination Event. The Servicer shall provide written notice to the Indenture Trustee, the Disposition Manager and each VFN Noteholder of any Servicer Termination Event, within one (1) Business Day of receipt by the Servicer of
notice of such Servicer Termination Event. 
 (h) Administrator Instructions and Functions Performed by Issuer. The Administrator
shall perform the administrative or ministerial functions specifically required of the Issuer pursuant to this Base Indenture and any other Transaction Document. 

(i) Adherence to Servicing Standards. Unless otherwise consented to by the Administrative Agent and the Administrator (the following
collectively, the “Servicing Standards”): 
 (i) the Servicer shall cooperate with the Indenture
Trustee acting as Calculation Agent in its duties set forth in the Transaction Documents; 
 (ii) the Servicer shall
cooperate with the MSR Valuation Agent and the Disposition Manager with respect to its duties set forth in the Transaction Documents; and 

(iii) the Servicer shall service all Portfolio Mortgage Loans without regard to ownership by PMC or its Affiliates of such
Portfolio Mortgage Loans. 
 (j) Performance and Compliance with the Fannie Mae Lender Contract. PMC will comply with all terms,
provisions, covenants and other promises required to be observed by it under the Fannie Mae Lender Contract and the Transaction Documents to which it is a party, maintain the Transaction Documents to which it is a party in full force and effect in
all material respects. 
 (k) Due Diligence. PMC acknowledges that the Indenture Trustee or the Administrative Agent, at PMC’s
expense, has the right to perform and/or appoint a third party to perform, continuing due diligence reviews with respect to the Collateral, for purposes of verifying compliance with the representations, warranties, and specifications made hereunder
and under the other Transaction Documents, or otherwise. PMC agrees that the Indenture Trustee or the Administrative Agent and their Authorized Representatives will be permitted during normal business hours, upon not less than three
(3) Business Days advance written notice, to examine, inspect, make copies of, and make extracts of, any and all documents, records, agreements (including any subservicing contracts), instruments or information relating to the Collateral or

  
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Fannie Mae in the possession of PMC; provided, however, that the foregoing shall not apply with respect to any information that PMC is required by Fannie Mae to keep confidential.
Notwithstanding anything to the contrary herein, PMC shall reimburse the Indenture Trustee and the Administrative Agent for any and all reasonable and out-of-pocket costs and expenses reasonably incurred by the such party and its respective
designees and appointees in connection with the ongoing due diligence and auditing activities; provided, that PMC shall not be required to permit more than one due diligence trip or audit during any twelve month period unless an Event of
Default is continuing. 
 (l) Changes in the Fannie Mae Lender Contract. PMC shall provide written notice to the Indenture Trustee and
the Administrative Agent of any changes in the Fannie Mae Lender Contract that may materially affect the Collateral within three (3) Business Days after PMC receives notice thereof. 

(m) Fannie Mae Approval. PMC shall at all times maintain copies of relevant portions of all final written HUD and Fannie Mae audits,
examinations, evaluations, monitoring reviews and reports of its origination and servicing and subservicing operations (including those prepared on a contract basis for any such agency) in which there are material adverse findings, including notices
of defaults, notices of termination of approved status, notices of imposition of supervisory agreements or interim servicing agreements, and notices of probation, suspension, or non-renewal, and all necessary approvals from each of HUD and Fannie
Mae. PMC shall not take any action, or fail to take any action, that would permit HUD or Fannie Mae to terminate or threaten to terminate its right to issue MBS or service loans for HUD or Fannie Mae with cause. The requirements of this
Section 10.2(m) shall only be applicable to PMC with respect to HUD if and to the extent that any FHA Loans, USDA Loans or VA Loans are Subject Mortgages. 

(n) Quality Control. PMC shall conduct quality control reviews of its servicing operations in accordance with industry standards and
Fannie Mae Requirements. Upon the reasonable request of the Indenture Trustee or the Administrative Agent, PMC shall report its quality control findings as such final reports are produced, excluding internal audit reports or information subject to
the attorney-client work product or attorney-client privilege or other applicable privilege. 
 (o) Special Affirmative Covenants
Concerning Collateral. 
 (i) Subject to the Acknowledgment Agreement and the Fannie Mae Requirements, PMC warrants and
shall defend the right, title and interest of the Indenture Trustee, on behalf of the Noteholders, in and to the Collateral to the Indenture Trustee against the claims and demands of all Persons whomsoever. 

(ii) PMC shall preserve the security interests granted hereunder and upon request by the Indenture Trustee or the
Administrative Agent undertake all actions which are necessary or appropriate, in the reasonable judgment of the Indenture Trustee or the Administrative Agent, as applicable, to (x) maintain the security interest of the Indenture Trustee on
behalf of the Noteholders (including the priority thereof) in the Collateral in full force and effect at all times prior to the satisfaction of all obligations under 

  
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this Base Indenture and the release of the Noteholders’ lien in accordance with the terms and provisions of this Base Indenture, and (y) preserve and protect the Collateral and protect
and enforce the rights of the Indenture Trustee to the Collateral, including the making or delivery of all filings and recordings (of financing or continuation statements), or amendments thereto or assignments thereof, and such other instruments or
notices, as may be necessary or appropriate, cause to be marked conspicuously its master data processing records with a legend, acceptable to the Indenture Trustee, evidencing that such security interest has been granted in accordance with this Base
Indenture. 
 (iii) PMC shall diligently fulfill its duties and obligations under the Fannie Mae Lender Contract in all
material respects and shall not default in any material respect under any of the Fannie Mae Lender Contract or the Acknowledgment Agreement. 

(p) Maintenance of Property; Insurance. PMC shall keep all property useful and necessary in its business in good working order and
condition except to the extent that the failure to do so could not reasonably be expected to result in a material Adverse Effect. PMC shall maintain a fidelity bond and be covered by insurance of the kinds and in the amounts customarily maintained
by such similarly situated entities in the same jurisdiction and industry as PMC, in amounts acceptable to Fannie Mae except to the extent that the failure to do so could not reasonably be expected to result in a material Adverse Effect. 

(q) Use of Proceeds. PMC shall not use the proceeds of the Notes in contravention of the requirements, if any, of Fannie Mae or
Applicable Law. 
 (r) Reimbursement of Advance Reimbursement Amounts. With respect to any Portfolio Mortgage Loan and collections
received with respect thereto, PMC shall reimburse itself for any unreimbursed Advances or seek reimbursement from Fannie Mae only as provided by the Fannie Mae Lender Contract. 

(s) Portfolio Mortgage Loan Information. PMC shall deliver to the to the Administrative Agent within seven (7) Business Days after
the end of each month, the information relating to the Portfolio Mortgage Loans required pursuant to Schedule 4 hereto. 
 (t)
Agency Notices. PMC shall promptly furnish the Administrative Agent copies of all notices it receives from HUD or Fannie Mae indicating any adverse fact or circumstance in respect of PMC which adverse fact or circumstance may entitle HUD or
Fannie Mae, respectively, to terminate or to threaten to terminate PMC with cause or that may entitle HUD or Fannie Mae to conduct any inspection or investigation of PMC, PMC’s files or PMC’s facilities. The requirements of this
Section 10.2(t) shall only be applicable to PMC with respect to HUD if and to the extent that any FHA Loans, USDA Loans or VA Loans are Subject Mortgages. 

(u) Fannie Mae Notices. PMC shall promptly furnish the Administrative Agent copies of all notices it receives from Fannie Mae that
materially affect the Servicing Fees, including any notice received with respect to the events set forth in Section 10.1(l). Within forty- five (45) days after each calendar month, PMC will provide a schedule of repurchases,
indemnifications and early payment defaults to Administrative Agent in a format similar to such schedule in PMC’s standard lender certification package. 

  
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 (v) Fannie Mae Requirements. PMC shall furnish the Administrative Agent notice of any
change in Fannie Mae Eligibility Requirements on the twenty-fourth (24th) day of each month, or such later date as PMC receives reconciled delinquency ratio information from Fannie Mae. 

(w) Legal Existence, etc. PMC shall (i) preserve and maintain its legal existence and all of its material rights, privileges,
licenses and franchises; and (ii) keep adequate records and books of account. 
 (x) Interim Borrowing Base Determination Date
Reporting. PMC shall report the occurrence of an Interim Borrowing Base Determination Date promptly after a Responsible Officer of the Administrator shall have obtained actual knowledge of such occurrence, and in any event within one
(1) Business Day of obtaining such knowledge. 
 (y) Subservicer Administration. If PMC at any time uses or intends to use, as
applicable, an independent third party subservicer (other than as provided in the PLS Subservicing Agreement or another Eligible Subservicing Agreement in accordance with this Section 10.2(y)) to fulfill its obligations as Servicer
hereunder, PMC shall, prior to the related servicing transfer date, (i) provide the Administrative Agent and the Indenture Trustee with the related Eligible Subservicing Agreement pursuant to which such subservicer shall service such Mortgage
Loans, which Eligible Subservicing Agreement shall be acceptable to Administrative Agent in all respects, (ii) obtain Administrative Agent’s prior written consent to the use of such subservicer in the performance of such servicing duties
and obligations, which consent may not be unreasonably withheld by the Administrative Agent and (iii) provide the Administrative Agent with a fully executed Eligible Subservicing Agreement with respect to such subservicer. In no event shall
PMC’s use of a subservicer relieve PMC of its obligations hereunder, and PMC shall remain liable under this Base Indenture as if PMC were servicing such Mortgage Loans directly. 

(z) Separateness. PMC shall make appropriate notation in its consolidated financial statements to indicate the separateness of the
Issuer from PMC and to indicate that the Issuer’s assets and credit are separate from those of PMC and its other consolidated subsidiaries. 

Section 10.3. Negative Covenants of PMC. 

PMC covenants and agrees with the Indenture Trustee, the Administrative Agent and each Noteholder that, so long as any Note is Outstanding and
until all obligations have been paid in full, PMC shall not: 
 (a) other than in accordance with Section 10.3(c), take any action that
would directly or indirectly materially impair or materially adversely affect PMC’s title to, or the value of, the Collateral; 

  
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 (b) create, incur or permit or allow Subservicer to create, incur or permit to exist any
Lien in or on the Collateral except (i) the security interest granted hereunder in favor of the Indenture Trustee on behalf of the Noteholders, (ii) the rights of Fannie Mae under the Fannie Mae Lender Contract, (iii) with respect to
the Sold MSR Excess Spread, the rights of PMH under the PMH Repurchase Agreement, (iv) the Owner Trustee Lien or (v) any Permitted Lien, or assign any right to receive income in respect thereof except to the Sold MSR Excess Spread to PMH
pursuant to the Excess Spread Participation Agreement; 
 (c) sell, lease or otherwise dispose of any Collateral (other than sales or
dispositions of MSRs (i) resulting from the payoff of the related Mortgages or the purchase of the related Mortgage by PMC, (ii) as required by Fannie Mae or (iii) in the ordinary course of PMC’s servicing business) except as
expressly permitted by this Base Indenture; 
 (d) engage to any substantial extent in any line or lines of business activity other than the
businesses related to mortgage origination and servicing carried on by it as of the Closing Date; 
 (e)(i) cancel or terminate any
Transaction Documents to which it is a party or consent to or accept any cancellation or termination thereof, (ii) amend, amend and restate, supplement or otherwise modify any Transaction Document, other than an amendment of the Fannie Mae
Lender Contract done unilaterally by Fannie Mae, (iii) consent to any amendment, modification or waiver of any term or condition of any Transaction Document, without the prior written consent of the Administrative Agent, provided that if the
amendment of the Fannie Mae Lender Contract is done unilaterally by Fannie Mae, the prior written consent of the Administrative Agent is not required, 

(iii) waive any material default under or breach of the Fannie Mae Lender Contract, or (v) take any other action in connection with any
such Transaction Documents that would impair in any material respect the value of the interests or rights of PMC thereunder or that would impair in any material respect the interests or rights of the Indenture Trustee, the Administrative Agent or
any Noteholder; 
 (f) change the state of its organization unless PMC shall have given the Administrative Agent at least thirty
(30) days’ prior written notice thereof and unless, prior to any such change, PMC shall have filed, or caused to be filed, such financing statements or amendments as the Indenture Trustee determines may be reasonably necessary to continue
the perfection of the Indenture Trustee’s interest in the Collateral; 
 (g) appoint any subservicers (other than as provided in any
Eligible Subservicing Agreement) with respect to any MSRs pledged to the Indenture Trustee pursuant to this Base Indenture; 
 (h) amend the
PLS Subservicing Agreement or any other Eligible Subservicing Agreement after the Closing Date in any way that could reasonably be expected to have a material adverse effect on the rights of the Noteholders without the prior written consent of the
Administrative Agent; 
 (i) take any action that would directly or indirectly materially impair or materially adversely affect PMC’s
title to, or the value, of the Servicing Fees or materially increase the duties, responsibilities or obligations of PMC in respect of the Collateral; 

  
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 (j) make any Restricted Payments at any time while an Event of Default has occurred and is
continuing; and 
 (k) not enter into any transaction, including any purchase, sale, lease or exchange of property or the rendering of any
service, with any Affiliate unless such transaction is (i) in the ordinary course of PMC’s business and (ii) upon fair and reasonable terms no less favorable to PMC than it would obtain in a comparable arm’s length transaction
with a Person which is not an Affiliate. 
 Section 10.4. Liability of PMC, as Administrator and as Servicer; Indemnities. 

(a) Obligations. Each of the Administrator and the Servicer, severally and not jointly, shall indemnify, defend and hold harmless the
Indenture Trustee (in all its capacities), the Securities Intermediary, the Note Registrar, the Calculation Agent, the Paying Agent, the Securities Intermediary, the Disposition Manager, the Trust Estate, the Owner Trustee and the Noteholders (as
applicable, with respect to the related Series of Notes) (each an “Indemnified Party”) from and against any and all costs, expenses, losses, claims, damages and liabilities to the extent that such cost, expense, loss, claim,
damage or liability arose out of, and was imposed upon, the Indenture Trustee, the Securities Intermediary, the Note Registrar, the Disposition Manager, the Owner Trustee, the Calculation Agent, the Paying Agent, the Securities Intermediary, the
Trust Estate or any Noteholder (i) in the case of indemnification by the Administrator, by reason of a violation of law, gross negligence or willful misconduct of the Administrator (or of the Issuer as a result of a direction, act or omission
by the Administrator), in the performance of their respective obligations under this Base Indenture and the other Transaction Documents or (ii) in the case of indemnification by the Servicer, by reason of a violation of law, gross negligence or
willful misconduct of the Servicer, in the performance of its respective obligations under this Base Indenture and the other Transaction Documents or as servicer or subservicer under the Fannie Mae Lender Contracts, or by reason of the breach by the
Servicer of any of its representations, warranties or covenants hereunder or under the Fannie Mae Lender Contracts; provided, that any indemnification amounts payable by the Administrator or the Servicer, as the case may be, to the Owner
Trustee hereunder shall not be duplicative of any indemnification amount paid by the Administrator to the Owner Trustee in accordance with the Trust Agreement or under the Administration Agreement. 

(b) Notification and Defense. Promptly after any Indemnified Party shall have been served with the summons or other first legal process
or shall have received written notice of the threat of a claim in respect of which a claim for indemnity may be made against PMC under this Section 10.4, the Indemnified Party shall notify the Indemnifying Party in writing of the service
of such summons, other legal process or written notice, giving information therein as to the nature and basis of the claim, but failure so to notify the Indemnifying Party shall not relieve the Indemnifying Party from any liability which it may have
hereunder or otherwise, except to the extent that the Indemnifying Party is prejudiced by such failure so to notify the Indemnifying Party. The Indemnifying Party will be entitled, at its own expense, to participate in the defense of any such claim
or action and, to the extent that it may wish, to assume the defense thereof, with counsel reasonably satisfactory to such Indemnified Party, and, after notice from the Indemnifying Party to such Indemnified Party that the Indemnifying Party wishes
to assume the defense of any such action, the Indemnifying Party will not be liable to such Indemnified Party under this Section 10.4 

  
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for any legal or other expenses subsequently incurred by such Indemnified Party in connection with the defense of any such action unless (i) the defendants in any such action include both
the Indemnified Party and the Indemnifying Party, and the Indemnified Party (upon the advice of counsel) shall have reasonably concluded that there may be legal defenses available to it that are different from or additional to those available to the
Indemnifying Party, or one or more Indemnified Parties, and which in the reasonable judgment of such counsel are sufficient to create a conflict of interest for the same counsel to represent both the Indemnifying Party and such Indemnified Party,
(ii) the Indemnifying Party shall not have employed counsel reasonably satisfactory to the Indemnified Party to represent the Indemnified Party within a reasonable time after notice of commencement of the action, or (iii) the Indemnifying
Party has authorized the employment of counsel for the Indemnified Party at the expense of the Indemnifying Party; then, in any such event, such Indemnified Party shall have the right to employ its own counsel in such action, and the reasonable fees
and expenses of such counsel shall be borne by the Indemnifying Party; provided, however, that the Indemnifying Party shall not in connection with any such action or separate but substantially similar or related actions arising out of
the same general allegations or circumstances, be liable for any fees and expenses of more than one firm of attorneys at any time for all Indemnified Parties. Each Indemnified Party, as a condition of the indemnity agreement contained herein, shall
use its commercially reasonable efforts to cooperate with the Indemnifying Party in the defense of any such action or claim. The Indemnifying Party shall not, without the prior written consent of any Indemnified Party, effect any settlement of any
pending or threatened proceeding in respect of which such Indemnified Party is or could have been a party and indemnity could have been sought hereunder by such Indemnified Party, unless such settlement includes an unconditional release of such
Indemnified Party from all liability on claims that are the subject matter of such proceeding or threatened proceeding. 
 (c)
Expenses. Indemnification under this Section shall include, without limitation, reasonable fees and expenses of counsel and expenses of litigation (including such fees and expenses incurred in enforcing the Indemnifying Party’s right to
indemnification). If the Indemnifying Party has made any indemnity payments pursuant to this Section and the recipient thereafter collects any of such amounts from others, the recipient shall promptly repay such amounts collected to the Indemnifying
Party, without interest. 
 (d) Survival. The provisions of this Section 10.4 shall survive the resignation or removal of
the Indenture Trustee, the Calculation Agent and the Paying Agent and the termination of this Base Indenture. 
 Section 10.5. Merger or
Consolidation, or Assumption of the Obligations, of PMC. 
 Any Person (a) into which PMC may be merged or consolidated,
(b) which may result from any merger, conversion or consolidation to which PMC shall be a party, or (c) which may succeed to all or substantially all of the business or assets of PMC which Person in any of the foregoing cases executes an
agreement of assumption to perform every obligation of PMC under this Base Indenture, shall be the successor to PMC under this Base Indenture without the execution or filing of any paper or any further act on the part of any of the parties to this
Base Indenture; provided, however, that (i) if any of the Notes are then rated by a Note Rating Agency, then prior to any such merger, consolidation or conversion (1) PMC shall have provided to the Indenture Trustee and the

  
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Noteholders a letter from each Note Rating Agency that rated Outstanding Notes indicating that such merger, consolidation or conversion will not result in the qualification, reduction or
withdrawal of the then current ratings of the Outstanding Notes or (2) if the Administrator and the Administrative Agents determine in their reasonable judgment that an applicable Note Rating Agency no longer provides such letters as described
in the foregoing clause (1), (a) the Administrator shall provide notice of such merger, consolidation or conversion to the related Note Rating Agency and (b) each Administrative Agent shall have provided its prior written consent to
merger, consolidation or conversion; provided, that the Issuer provides an Issuer Certificate to the effect that any such merger, consolidation or conversion will not have a material Adverse Effect on the Outstanding Notes, and
(ii) prior to any such merger, consolidation or conversion the Administrator shall have delivered to the Indenture Trustee an Opinion of Counsel to the effect that such merger, consolidation or conversion complies with the terms of this Base
Indenture and one or more Opinions of Counsel updating or restating all opinions delivered on the date of this Base Indenture with respect to corporate matters and the enforceability of Transaction Documents against PMC true sale as to the transfers
of the Participation Certificates from the Servicer to the Issuer and non-consolidation of the Servicer with the Issuer and security interest and tax and any additional opinions required under any related Indenture Supplement; provided,
further, that the conditions specified in clauses (i) and (ii) above shall not apply to any transaction (i) in which an Affiliate of PMC assumes the obligations of PMC and otherwise satisfies the eligibility
criteria applicable to the Servicer under the Fannie Mae Lender Contracts or (ii) in which an Affiliate of PMC is merged into or is otherwise combined with PMC and PMC is the sole survivor of such merger or other combination. PMC shall provide
notice of any merger, consolidation or succession pursuant to this Section to the Indenture Trustee, the Noteholders and each Note Rating Agency. 

Except as described in the preceding paragraph, PMC may not assign or delegate any of its rights or obligations under this Base Indenture or
any other Transaction Document. 
 Article XI 

The Indenture Trustee Section 11.1. Certain Duties and Responsibilities. 

(a) The Indenture Trustee undertakes to perform such duties and only such duties as are specifically set forth in this Base Indenture with
respect to the Notes, and no implied covenants, duties (including fiduciary duties) or obligations will be read into this Base Indenture against the Indenture Trustee. 

(b) In the absence of bad faith on its part, the Indenture Trustee may, with respect to Notes, conclusively rely upon certificates or opinions
furnished to the Indenture Trustee and conforming to the requirements of this Base Indenture, as to the truth of the statements and the correctness of the opinions expressed therein; but in the case of any such certificates or opinions which by any
provision hereof are specifically required to be furnished to the Indenture Trustee, the Indenture Trustee will be under a duty to examine the same to determine whether or not they conform on their face to the requirements of this Base Indenture but
need not confirm or investigate the accuracy of any mathematical calculations or other facts stated therein. 

  
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 (c) If an Event of Default has occurred and is continuing, with respect to the Notes of
which a Responsible Officer of the Indenture Trustee has been given written notice in the manner set forth in this Indenture or of which a Responsible Officer of the Indenture Trustee has actual knowledge, the Indenture Trustee will exercise such of
the rights and powers vested in it by this Base Indenture, and use the same degree of care and skill in their exercise, as a prudent person would exercise or use under the circumstances in the conduct of such person’s own affairs; provided that
the foregoing shall not be deemed to require the Indenture Trustee to take any action, or have any liability for the failure to take any action, where the terms of this Base Indenture or any Supplement provide that the Indenture Trustee only takes
action at the direction of a certain percentage of the Noteholders or other Person or if the Indenture Trustee is permitted to refrain from taking action unless it has been provided with adequate indemnity. 

(d) No provision of this Base Indenture will be construed to relieve the Indenture Trustee from liability for its own negligent action, its own
negligent failure to act, or its own willful misconduct, except that: 
 (i) this subsection (d) will not be
construed to limit the effect of subsection (a) of this Section 11.1; 
 (ii) the Indenture Trustee
will not be liable for any error of judgment made in good faith by an Indenture Trustee Authorized Officer, unless it will be proved that the Indenture Trustee was negligent in ascertaining the pertinent facts; 

(iii) the Indenture Trustee will not be liable with respect to any action taken or omitted to be taken by it in good faith in
accordance with the direction of the Majority Noteholders or the Administrative Agent relating to the time, method and place of conducting any proceeding for any remedy available to the Indenture Trustee, or exercising any trust or power conferred
upon the Indenture Trustee, under this Base Indenture with respect to the Notes of any Class, to the extent consistent with Sections 8.7 and 8.8; 

(iv) no provision of this Base Indenture will require the Indenture Trustee to expend or risk its own funds or otherwise incur
any financial liability in the performance of any of its duties hereunder, or in the exercise of any of its rights or powers, if it has reasonable grounds for believing that repayment of such funds or indemnity satisfactory to the Indenture Trustee
against such risk or liability is not reasonably assured to it; 
 (v) whether or not therein expressly so provided, every
provision of this Base Indenture relating to the conduct or affecting the liability of or affording protection to the Indenture Trustee will be subject to the provisions of this Section; and 

(vi) the Indenture Trustee shall not be liable with respect to any action taken or omitted to be taken by it in good faith in
accordance with the direction of the Issuer or of Noteholders, as applicable, in accordance with the terms of this Indenture, relating to the time, method or place of conducting any proceeding for any remedy available to the Indenture Trustee or
with respect to the exercise of any trust or power conferred upon such party under this Indenture or with respect to the Notes. 

  
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 (e) Upon the occurrence of an Event of Default under the PC Repurchase Agreement, the
Indenture Trustee may (and at the direction of the Administrative Agent or the Series Required Noteholders) send an Activation Notice to the Account Bank pursuant to which the Indenture Trustee shall exercise its control over the Dedicated Account,
as applicable. 
 Section 11.2. Notice of Defaults. 

Except as otherwise provided in Section 3.3(b), within ninety (90) days after the occurrence of any Event of Default
hereunder, 
 (a) the Indenture Trustee will transmit by mail to all registered Noteholders, as their names and addresses appear in the Note
Register, notice of such default hereunder known to the Indenture Trustee, and 
 (b) the Indenture Trustee will give prompt written
notification thereof to each Note Rating Agency, unless such default shall have been cured or waived; provided, however, that, except in the case of a default in the payment of the principal of or interest on any Note of any Series or
Class, the Indenture Trustee will be protected in withholding such notice if and so long as an Indenture Trustee Responsible Officer in good faith determines that the withholding of such notice is in the interests of the Noteholders of such Series
or Class. For the purpose of this Section, the term “default” means any event which is, or after notice or lapse of time or both would become, an Event of Default. 

Section 11.3. Certain Rights of Indenture Trustee. 

Except as otherwise provided in Section 11.1: 

(a) the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary may conclusively rely and will be protected in acting or
refraining from acting upon any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture or other paper or document (whether in its original or facsimile form) believed by it to be
genuine and to have been signed or presented by the proper party or parties; 
 (b) any request or direction of the Issuer mentioned herein
shall be sufficiently evidenced by an Issuer Certificate; 
 (c) whenever in the administration of this Base Indenture the Indenture Trustee,
Calculation Agent, Paying Agent and Securities Intermediary deems it desirable that a matter be proved or established before taking, suffering or omitting any action hereunder, the Indenture Trustee (unless other evidence be herein specifically
prescribed) may, in the absence of bad faith on its part, rely upon an Officer’s Certificate; 
 (d) each of the Indenture Trustee,
Calculation Agent, Paying Agent and Securities Intermediary may consult with counsel of its own selection, at the expense of the Issuer, and the advice of such counsel or any Opinion of Counsel will be full and complete authorization and protection
in respect of any action taken, suffered or omitted by it hereunder in good faith and in reliance thereon; 

  
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 (e) none of the Indenture Trustee, Calculation Agent, Paying Agent and Securities
Intermediary shall be under obligation to exercise any of the rights or powers vested in it by this Base Indenture at the request or direction of any of the Noteholders pursuant to this Base Indenture, unless such Noteholders shall have offered to
the Indenture Trustee security or indemnity reasonably satisfactory to it against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction; 

(f) none of the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary shall be bound to make any investigation into
the facts or matters stated in any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture or other paper or document; but such party in its discretion, may make such further
inquiry or investigation into such facts or matters as it may see fit, and, if any of the Indenture Trustee, the Paying Agent, the Note Registrar or the Securities Intermediary shall determine to make such further inquiry or investigation, it shall
be entitled to examine the books, records and premises of the Issuer, personally or by agent or attorney, upon reasonable notice of not less than three (3) Business Days; 

(g) each of the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary may execute any of the trusts or powers
hereunder or perform any duties hereunder either directly or by or through agents or attorneys and none of the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary shall be responsible for any misconduct or negligence on
the part of any agent or attorney appointed with due care by it hereunder; 
 (h) none of the Indenture Trustee, Calculation Agent, Paying
Agent and Securities Intermediary shall be required to provide any surety or bond of any kind in connection with the execution or performance of its duties hereunder; 

(i) none of the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary shall be deemed to make any representations as
to the validity or sufficiency of this Indenture; 
 (j) none of the Indenture Trustee, Calculation Agent, Paying Agent and Securities
Intermediary shall at any time have any responsibility or liability other than as may be expressly set forth in this Indenture for or with respect to the legality, validity or enforceability of any of the Notes; 

(k) in order to comply with their respective duties under the USA Patriot Act of 2001, the Indenture Trustee, Calculation Agent, Paying Agent
and Securities Intermediary shall obtain and verify certain information and documentation from the other parties to this Indenture including such party’s name, address, and other identifying information; 

  
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 (l) the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary shall
not be under any obligation to (i) institute, conduct, defend or otherwise participate in any litigation or other legal Proceeding hereunder or in relation hereto at the request, order or direction of any of the Noteholders pursuant to the
provisions of this Indenture, or (ii) undertake an investigation of any party to any transaction agreement, unless, in each case, such Noteholders shall have offered to the Indenture, Calculation Agent, Paying Agent and Securities Intermediary
security or indemnity satisfactory to it against the costs, expenses and liabilities which may be incurred therein or thereby; 
 (m) the
Indenture Trustee shall not have any duty or responsibility in respect to (i) any recording, filing or depositing of this Indenture or any other agreement or instrument, monitoring or filing any financing statement or continuation statement
evidencing a security interest, the maintenance of any such recording, filing or depositing or any re-recording, re-filing or re- depositing of any thereof, or otherwise monitoring the perfection, continuation of perfection or the sufficiency or
validity of any security interest in or related to the Collateral, (ii) the acquisition or maintenance of any insurance or (iii) the payment or discharge of any tax, assessment, or other governmental charge or any lien or encumbrance of
any kind owing with respect to, assessed or levied against, any part of the Collateral. The Indenture Trustee shall be authorized to, but shall in no event have any duty or responsibility to, file any financing or continuation statements or record
any documents or instruments in any public office at any time or times or otherwise perfect or maintain any security interest in the Collateral; 

(n) the Indenture Trustee shall not be deemed to have notice of any default, Event of Default, Funding Interruption Event or Servicer
Termination Event unless an Indenture Trustee Responsible Officer has actual knowledge thereof or unless written notice of any event which is in fact such a default, Event of Default, Funding Interruption Event or Servicer Termination Event is
received by the Indenture Trustee at the Corporate Trust Office of the Indenture Trustee, and such notice references the Notes and this Base Indenture; in the absence of receipt of such notice or actual knowledge, the Indenture Trustee may
conclusively assume that there is no default, Event of Default, Funding Interruption Event or Servicer Termination Event; 
 (o) the rights,
privileges, protections, immunities and benefits given to the Indenture Trustee hereunder and under each Transaction Document, including its right to be indemnified, are extended to, and shall be enforceable (without duplication) by, the Indenture
Trustee or the bank serving as Indenture Trustee, as applicable, in each of its capacities hereunder and thereunder (including Calculation Agent, Custodian, Paying Agent, Securities Intermediary and Note Registrar), and each agent and other person
employed to act hereunder and thereunder; 
 (p) none of the provisions contained in this Base Indenture shall in any event require the
Indenture Trustee to perform, or be responsible for the manner of performance of, any of the obligations of the Servicer or any other Person under this Base Indenture; 

(q) the Indenture Trustee shall have no duty (A) to see to any recording, filing, or depositing of this Base Indenture or any agreement
referred to herein or any financing statement or continuation statement evidencing a security interest, or to see to the maintenance of any such recording or filing or depositing or to any rerecording, refiling or redepositing of any thereof,
(B) to see to any insurance, (C) to see to the payment or discharge of any tax, assessment, or other governmental charge or any lien or encumbrance of any kind owing with respect to, assessed or levied against, any part of the Trust Estate
other than from funds available in the Trust Accounts or (D) to confirm or verify the contents of any reports or certificates of the Servicer or the Administrator delivered to the Indenture Trustee pursuant to this Base Indenture believed by
the Indenture Trustee to be genuine and to have been signed or presented by the proper party or parties; 

  
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 (r) the Indenture Trustee shall not be personally liable for any action taken, suffered or
omitted by it in good faith and believed by it to be authorized or within the discretion or rights or powers conferred upon it by this Base Indenture; 

(s) the right of the Indenture Trustee to perform any discretionary act enumerated in this Base Indenture or the other Transaction Documents
shall not be construed as a duty, and the Indenture Trustee shall not be answerable for other than its negligence or willful misconduct in the performance of such act; 

(t) the Indenture Trustee shall not be required to give any bond or surety in respect of the execution of the Trust Estate created hereby or
the powers granted hereunder; 
 (u) in making or disposing of any investment permitted by this Base Indenture, the Indenture Trustee is
authorized to deal with itself (in its individual capacity) or with any one or more of its Affiliates, in each case on an arm’s-length basis and on standard market terms, whether it or such Affiliate is acting as a subagent of the Indenture
Trustee or for any third Person or dealing as principal for its own account; 
 (v) the Indenture Trustee shall not be responsible for delays
or failures in the performance of its obligations hereunder arising out of or caused by, directly or indirectly, forces beyond its control, including strikes, work stoppages, accidents, acts of war or terrorism, civil or military disturbances,
nuclear or natural catastrophes or acts or God, and interruptions, loss or malfunctions of utilities, communications or computer (software and hardware) services; and 

(w) None of the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary (i) shall be responsible for and make any
representation as to the validity, legality, enforceability, sufficiency or adequacy of this Indenture, the Notes or any other Transaction Document or as to the correctness of any statement thereof, (ii) shall be accountable for the
Issuer’s use of the proceeds from the Notes, or (iii) shall be responsible for any statement of the Issuer in this Indenture or in any document issued in connection with the sale of the Notes or in the Notes. The recitals contained herein
and in the Notes shall be construed as the statements of the Issuer. The Indenture Trustee shall not be responsible for any statement of the Issuer in this Indenture or any statement in any document, including any offering memorandum, issued in
connection with the sale of any Notes or in the Notes other than information provided by the Indenture Trustee and the Indenture Trustee’s certificate of authentication or for the use or application of any funds received by any Paying Agent
other than the Indenture Trustee. 

  
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 (x) In no event will the Indenture Trustee have any responsibility to monitor compliance
with or enforce compliance with the credit risk retention rules under Regulation RR or other rules or regulations relating to risk retention. The Indenture Trustee will not be charged with knowledge of such rules, nor will it be liable to any
Noteholder, Certificateholder, the Servicer or any other Person for violation of such rules now or hereinafter in effect. The Indenture Trustee will not be required to monitor, initiate or conduct any proceedings to enforce the obligations of the
Servicer or any other Person with respect to any breach of representation or warranty under any Transaction Document, and the Indenture Trustee will not have any duty to conduct any investigation as to the occurrence of any condition requiring the
repurchase or substitution of any security by any Person pursuant to any Transaction Document. 
 (y) The Indenture Trustee is hereby
authorized and directed to enter into the Transaction Documents to which it is a party. 
 (z) The Indenture Trustee (in any capacity in which it acts) shall have no duty, obligation or responsibility to determine
whether a Benchmark Transition Event has occurred or to select an alternative index, and shall have no liability for the Designated Transaction Representative’s selection of such alternative index. 
 Section 11.4. Not Responsible for Recitals or Issuance of Notes. 

The recitals contained herein and in the Notes, except the certificates of authentication, will be taken as the statements of the Issuer, and
the Indenture Trustee assumes no responsibility for their correctness. The Indenture Trustee makes no representations as to the validity or sufficiency of this Base Indenture or of the Notes. The Indenture Trustee will not be accountable for the use
or application by the Issuer of Notes or the proceeds thereof, or for the use or application of any funds paid to the Servicer in respect of any amounts deposited in or withdrawn from the Trust Accounts or the custodial accounts by the Servicer. The
Indenture Trustee shall not be responsible for the legality or validity of this Base Indenture or the validity, priority, perfection or sufficiency of the security for the Notes issued or intended to be issued hereunder. 

Section 11.5. Indenture Trustee’s Appointment as Attorney-In-Fact. 

(a) The Servicer hereby irrevocably constitutes and appoints the Indenture Trustee and any officer or agent thereof, during the continuation of
an Event of Default, with full power of substitution, as its true and lawful attorney-in-fact with full irrevocable power and authority in the place and stead of the Servicer and in the name of the Servicer, for the purpose of carrying out the terms
of this Base Indenture and each Indenture Supplement, to take any and all appropriate action and to execute any and all documents and instruments which may be necessary or desirable to accomplish the purposes of this Base Indenture, each Indenture
Supplement, the PC Repo Guaranty, the PMH Repo Guaranty, the Fannie Mae Lender Contract, the Acknowledgment Agreement, and, without limiting the generality of the foregoing, the Issuer hereby gives the Indenture Trustee the power and right: 

(1) to take possession of and endorse and collect any wired funds, checks, drafts, notes, acceptances or other instruments for
the payment of monies due under any Participation Certificates Granted by the Issuer to the Indenture Trustee from the Obligors on underlying Mortgage Loans or the Servicer, as the case may be; 

  
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 (2) to file any claim or proceeding in any court of law or equity or take
any other action otherwise deemed appropriate by the Indenture Trustee for the purpose of collecting any and all such monies due from the Obligors on underlying Mortgage Loans or the Servicer under such Participation Certificate whenever payable and
to enforce any other right in respect of any Participation Certificate Granted by the Issuer or related to the Trust Estate; 

(3) to direct the related Servicer to make payment of any and all monies due or to become due under the Participation
Certificate Granted by the Issuer directly to the Indenture Trustee or as the Indenture Trustee shall direct; 
 (4) to ask
or demand for, collect, receive payment of and receipt for, any and all monies, claims and other amounts due or to become due from the Servicer at any time in respect of or arising out of any Participation Certificate Granted by the Issuer; 

(5) to sign and endorse any assignments, notices and other documents in connection with the Participation Certificates Granted
by the Issuer or the Trust Estate; 
 (6) to sell, transfer, pledge and make any agreement with respect to or otherwise deal
with the Participation Certificates Granted by the Issuer and the Trust Estate as fully and completely as though the Indenture Trustee were the absolute owner thereof for all purposes, and do, at the Indenture Trustee’s option and at the
expense of the Issuer, at any time, or from time to time, all acts and things which the Indenture Trustee deems necessary to protect, preserve or realize upon the Participation Certificate Granted by the Issuer or the Trust Estate and the Indenture
Trustee’s and the Issuer’s respective security interests and ownership interests therein and to effect the intent of this Base Indenture, all as fully and effectively as the Issuer might do; 

(7) to perform or cause to be performed, the Servicer’s obligations under the Fannie Mae Lender Contract to the extent
permitted by the Acknowledgment Agreement; 
 (8) upon and after the occurrence of a default by the Servicer under the Fannie
Mae Lender Contract, the Servicer also authorizes the Indenture Trustee, or other party appointed by the Indenture Trustee, to have on site access to the Servicer’s operation sites, sufficient for the Administrative Agent or other party
appointed by it, to begin the process of transferring the portfolio to a “Standby Issuer” as required pursuant to the Acknowledgment Agreement; 

(9) the Servicer also authorizes the Administrative Agent, at any time and from time to time, to execute, in connection with
the sale provided for in Section 8.15 hereof, any endorsements, assignments or other instruments of conveyance or transfer with respect to the Collateral; provided that the exercise of such powers are in accordance with the
Acknowledgment Agreement; and 
 (10) the powers conferred on the Indenture Trustee are solely to protect the
Noteholders’ interest in the Collateral and shall not impose any duty upon the Indenture Trustee to exercise any such powers. 

  
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 (b) The Indenture Trustee shall be accountable only for amounts that it actually receives as
a result of the exercise of such powers, and neither the Indenture Trustee nor any of its officers, directors, or employees shall be responsible to the Issuer for any act or failure to act hereunder; provided, that the Indenture Trustee shall
exercise such powers only in accordance with the Acknowledgment Agreement. Nothing contained herein shall in any way be deemed to be a grant of power or authority to the Indenture Trustee or any officer or agent thereof to take any of the actions
described in this paragraph with respect to any underlying Obligor under any Portfolio Mortgage Loan. 
 Section 11.6. Money Held in Trust. 

The Indenture Trustee will be under no liability for interest on any money received by it hereunder except as otherwise agreed with the Issuer.

 Section 11.7. Compensation and Reimbursement, Limit on Compensation, Reimbursement and Indemnity. 

Except as otherwise provided in this Base Indenture: 

(a) The Indenture Trustee (including in all of its capacities) will be paid the Indenture Trustee Fee on each Payment Date pursuant to
Section 4.5 as compensation for its services (in all capacities hereunder). 
 (b) The Indenture Trustee (including in all of its
capacities) shall be indemnified and held harmless by the Trust Estate as set forth in Section 4.5 and Section 8.6, and shall be secondarily indemnified and held harmless by the Administrator for, from and against, as the
case may be, any loss, liability or expense incurred without negligence or willful misconduct on its part, arising out of, or in connection with, the acceptance and administration of the Trust Estate, including the costs and expenses (including
reasonable legal fees and expenses) of defending itself against any claim in connection with the exercise or performance of any of its powers or duties under this Base Indenture, provided that: 

(i) with respect to any such claim, the Indenture Trustee shall have given the Administrator written notice thereof promptly
after a Responsible Officer of the Indenture Trustee shall have actual knowledge thereof; provided, however that failure to give such written notice shall not affect the Trust Estate’s or the Administrator’s obligation to
indemnify the Indenture Trustee, unless such failure materially prejudices the Trust Estate’s or the Administrator’s rights; 

(ii) the Administrator may, at its option, assume the defense of any such claim using counsel reasonably satisfactory to the
Indenture Trustee; and 
 (iii) notwithstanding anything in this Base Indenture to the contrary, the Administrator shall not
be liable for settlement of any claim by the Indenture Trustee, as the case may be, entered into without the prior consent of the Administrator, which consent shall not be unreasonably withheld. 

  
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 Notwithstanding the foregoing, in no event shall the Trust Estate or the Administrator be
required to indemnify the Indenture Trustee if the indemnification obligation under this Section11.7 is the result of gross negligence or willful misconduct by the Indenture Trustee. 

No termination of this Base Indenture, or the resignation or removal of the Indenture Trustee, shall affect the obligations created by this
Section 11.7(b) of the Administrator to indemnify the Indenture Trustee under the conditions and to the extent set forth herein. 

Notwithstanding the foregoing, the indemnification provided in this Section 11.7(b) with respect to the Administrator shall not
pertain to any loss, liability or expense of the Indenture Trustee, including the costs and expenses of defending itself against any claim, incurred in connection with any actions taken by the Indenture Trustee at the direction of the Noteholders
pursuant to the terms of this Base Indenture. 
 The Indenture Trustee agrees fully to perform its duties under this Base Indenture
notwithstanding its failure to receive any payments of Indenture Trustee Fees pursuant to this Section 11.7(b) subject to its rights to resign in accordance with the terms of this Base Indenture. 

Anything in this Base Indenture to the contrary notwithstanding, in no event shall the Indenture Trustee (in any of its capacities) be liable
for special, indirect or consequential loss or damage of any kind whatsoever (including lost profits), even if the Indenture Trustee has been advised of the likelihood of such a loss or damage and regardless of the form of action. 

The Securities Intermediary, the Paying Agent, the Custodian and the Calculation Agent shall be indemnified by the Trust Estate pursuant to
Section 4.5 and Section 8.6, and secondarily by the Administrator, in respect of the matters described in Section 4.9 to the same extent as the Indenture Trustee. 

Neither of the Indenture Trustee nor the Securities Intermediary will have any recourse to any asset of the Issuer or the Trust Estate other
than funds available pursuant to Section 4.5 and Section 8.6 or to any Person other than the Issuer (or the Administrator pursuant to this Section 11.7). Except as specified in Section 4.5 and
Section 8.6, any such payment to the Indenture Trustee shall be subordinate to payments to be made to Noteholders. 
 The
Indenture Trustee is not responsible for any action or inaction of the Administrative Agent. 
 Section 11.8. Corporate Indenture Trustee Required;
Eligibility. 
 There will at all times be an Indenture Trustee hereunder with respect to all Classes of Notes, which will be either a
bank or a corporation organized and doing business under the laws of the United States of America or of any state, authorized under such laws to exercise corporate trust powers, having a combined capital and surplus of at least $50,000,000, subject
to supervision or examination by a federal or state authority of the United States, and the long-term unsecured 

  
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debt obligation of which are rated at least BBB from each Note Rating Agency then rating Outstanding Notes if such institution is rated by the Note Rating Agency, as applicable, or if such Note
Rating Agency downgrades the Indenture Trustee below such minimum rating, the Indenture Trustee may obtain, at its own expense, a confirmation from such Note Rating Agency that downgraded the Indenture Trustee below such rating category that there
is no Ratings Effect by reason of such downgrade to a lower rating. If such bank or corporation publishes reports of condition at least annually, pursuant to law or to the requirements of the aforesaid supervising or examining authority, then for
the purposes of this Section, the combined capital and surplus of such bank or corporation will be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published. The Issuer may not, nor may any Person
directly or indirectly Controlling, Controlled by, or under common Control with the Issuer, serve as Indenture Trustee. If at any time the Indenture Trustee ceases to be eligible in accordance with the provisions of this Section 11.8, it
shall resign upon failure to obtain such confirmation within a reasonable time (not to exceed thirty (30) Business Days) after such ineligibility in the manner and with the effect hereinafter specified in this Article. 

Section 11.9. Resignation and Removal; Appointment of Successor. 

(a) No resignation or removal of the Indenture Trustee and no appointment of a successor Indenture Trustee pursuant to this Article will become
effective until the acceptance of appointment by the successor Indenture Trustee under Section 11.10. 
 (b) The Indenture
Trustee and the bank serving as Indenture Trustee (in all capacities) may resign with respect to all, but not less than all, such capacities and all, but not less than all of the Outstanding Notes at any time by giving written notice thereof to the
Issuer. If an instrument of acceptance by a successor Indenture Trustee, Calculation Agent, Paying Agent or Securities Intermediary shall not have been delivered to the Indenture Trustee within thirty (30) days after the giving of such notice
of resignation, the resigning Indenture Trustee, Calculation Agent, Paying Agent or Securities Intermediary may petition any court of competent jurisdiction for the appointment of a successor Indenture Trustee, Calculation Agent, Paying Agent and
Securities Intermediary. Written notice of resignation by the Indenture Trustee under this Base Indenture shall also constitute notice of resignation as Calculation Agent, Securities Intermediary, Paying Agent, and Note Registrar hereunder, to the
extent the Indenture Trustee serves in such a capacity at the time of such resignation. 
 (c) The Indenture Trustee or Calculation Agent may
be removed with respect to all Outstanding Notes at any time by Action of the Majority Noteholders of all Outstanding Notes, delivered to the Indenture Trustee and to the Issuer. Removal of the Indenture Trustee shall also constitute removal of the
Calculation Agent, Securities Intermediary, Note Registrar and Paying Agent hereunder, to the extent the Indenture Trustee serves in such a capacity at the time of such resignation. If an instrument of acceptance by a successor Indenture Trustee or
Calculation Agent shall not have been delivered to the Indenture Trustee within thirty (30) days after the giving of such notice of removal, the Indenture Trustee or Calculation Agent being removed may petition any court of competent
jurisdiction for the appointment of a successor Indenture Trustee or Calculation Agent. 

  
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 (d) If at any time: 

(i) the Indenture Trustee ceases to be eligible under Section 11.8 and fails to resign after written request
therefore by the Issuer or by any Noteholder; or 
 (ii) the Indenture Trustee becomes incapable of acting with respect to
any Series or Class of Notes; or 
 (iii) the Indenture Trustee is adjudged bankrupt or insolvent or a receiver of the
Indenture Trustee or of its property is appointed or any public officer takes charge or Control of the Indenture Trustee or of its property or affairs for the purpose of rehabilitation, conservation or liquidation, 

then, in any such case, (A) the Issuer may remove the Indenture Trustee, or (B) subject to Section 8.8, any Noteholder who has been a
bona fide Noteholder of a Note for at least six (6) months may, on behalf of itself and all others similarly situated, petition any court of competent jurisdiction for the removal of the Indenture Trustee and the appointment of a successor
Indenture Trustee. 
 (e) If the Indenture Trustee or Calculation Agent resigns, is removed or becomes incapable of acting with respect to
any Notes, or if a vacancy shall occur in the office of the Indenture Trustee or Calculation Agent for any cause, the Issuer, subject to the Administrative Agent’s consent, will promptly appoint a successor Indenture Trustee or Calculation
Agent. If, within one year after such resignation, removal or incapacity, or the occurrence of such vacancy, a successor Indenture Trustee or Calculation Agent is appointed by Act of the Majority Noteholders of all Outstanding Notes, delivered to
the Issuer and the retiring Indenture Trustee or Calculation Agent, the successor Indenture Trustee or Calculation Agent so appointed will, forthwith upon its acceptance of such appointment, become the successor Indenture Trustee or Calculation
Agent and supersede the successor Indenture Trustee or Calculation Agent appointed by the Issuer. If no successor Indenture Trustee or Calculation Agent shall have been so appointed by the Issuer or the Noteholders and accepted appointment in the
manner hereinafter provided, any Noteholder who has been a bona fide Noteholder of a Note for at least six (6) months may, on behalf of itself and all others similarly situated, petition any court of competent jurisdiction for the appointment
of a successor Indenture Trustee or Calculation Agent. 
 (f) The Issuer will give written notice of each resignation and each removal of the
Indenture Trustee and each appointment of a successor Indenture Trustee to each Noteholder as provided in Section 1.7 and to each Note Rating Agency that is then rating Outstanding Notes. To facilitate delivery of such notice, upon
request by the Issuer, the Note Registrar shall provide to the Issuer a list of the relevant registered Noteholders. Each notice will include the name of the successor Indenture Trustee and the address of its principal Corporate Trust Office. 

  
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 Section 11.10. Acceptance of Appointment by Successor. 

Every successor Indenture Trustee appointed hereunder will execute, acknowledge and deliver to the Issuer and to the predecessor Indenture
Trustee an instrument accepting such appointment, with a copy to each Note Rating Agency then rating any Outstanding Notes, and thereupon the resignation or removal of the predecessor Indenture Trustee will become effective, and such successor
Indenture Trustee, without any further act, deed or conveyance, will become vested with all the rights, powers, trusts and duties of the predecessor Indenture Trustee, Calculation Agent, Securities Intermediary, Note Registrar and Paying Agent; but,
on request of the Issuer or the successor Indenture Trustee, such predecessor Indenture Trustee will, upon payment of its reasonable charges, if any, execute and deliver an instrument transferring to such successor Indenture Trustee all the rights,
powers and trusts of the predecessor Indenture Trustee, Calculation Agent, Securities Intermediary, Note Registrar and Paying Agent, and will duly assign, transfer and deliver to such successor Indenture Trustee all property and money held by such
predecessor Indenture Trustee hereunder, subject nevertheless to its rights to payment pursuant to Section 11.7. Upon request of any such successor Indenture Trustee, the Issuer will execute any and all instruments for more fully and
certainly vesting in and confirming to such successor Indenture Trustee all such rights, powers and trusts. 
 No successor Indenture
Trustee will accept its appointment unless at the time of such acceptance such successor Indenture Trustee will be qualified and eligible under this Article XI. 

Section 11.11. Merger, Conversion, Consolidation or Succession to Business. 

Any Person into which the Indenture Trustee may be merged or converted or with which it may be consolidated, or any Person resulting from any
merger, conversion or consolidation to which the Indenture Trustee shall be a party, or any Person succeeding to all or substantially all of the corporate trust business of the Indenture Trustee, will be the successor of the Indenture Trustee
hereunder, provided that such Person shall be otherwise qualified and eligible under this Article XI, without the execution or filing of any paper or any further act on the part of any of the parties hereto. The Indenture Trustee will
give prompt written notice of such merger, conversion, consolidation or succession to the Issuer and each Note Rating Agency that is then rating Outstanding Notes. If any Notes shall have been authenticated, but not delivered, by the Indenture
Trustee then in office, any successor by merger, conversion or consolidation to such authenticating Indenture Trustee may adopt such authentication and deliver the Notes so authenticated with the same effect as if such successor Indenture Trustee
had itself authenticated such Notes. 
 Section 11.12. Appointment of Authenticating Agent. 

At any time when any of the Notes remain Outstanding the Indenture Trustee, with the approval of the Issuer, may appoint an Authenticating
Agent with respect to one or more Series or Classes of Notes which will be authorized to act on behalf of the Indenture Trustee to authenticate Notes of such Series or Classes issued upon exchange, registration of transfer or partial redemption
thereof or pursuant to Section 6.5, and Notes so authenticated will be entitled to the benefits of this Base Indenture and will be valid and obligatory for all purposes as if authenticated by the Indenture Trustee hereunder. Wherever
reference is made in this Base Indenture to the authentication and delivery of Notes by the Indenture Trustee or an Indenture Trustee Authorized Signatory or to the Indenture Trustee’s Certificate of Authentication, such reference will be
deemed to include authentication and delivery on behalf of the Indenture Trustee by an Authenticating Agent and a Certificate of Authentication executed on behalf of the Indenture Trustee by an Authenticating Agent. Each Authenticating Agent will be
acceptable to the Issuer and will at all times be a Person 

  
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organized and doing business under the laws of the United States of America, any State thereof or the District of Columbia, authorized under such laws to act as an Authenticating Agent, having a
combined capital and surplus of not less than $50,000,000 and, if other than the Issuer itself, subject to supervision or examination by a federal or state authority of the United States. If such Authenticating Agent publishes reports of condition
at least annually, pursuant to law or to the requirements of said supervising or examining authority, then for the purposes of this Section, the combined capital and surplus of such Authenticating Agent will be deemed to be its combined capital and
surplus as set forth in its most recent report of condition so published. If at any time an Authenticating Agent will cease to be eligible in accordance with the provisions of this Section, such Authenticating Agent will resign immediately in the
manner and with the effect specified in this Section. 
 Any Person into which an Authenticating Agent may be merged or converted or with
which it may be consolidated, or any Person resulting from any merger, conversion or consolidation to which such Authenticating Agent will be a party, or any Person succeeding to the corporate agency or corporate trust business of an Authenticating
Agent, will continue to be an Authenticating Agent, provided that such Person will be otherwise eligible under this Section, without the execution or filing of any paper or any further act on the part of the Indenture Trustee or the
Authenticating Agent. 
 An Authenticating Agent may resign at any time by giving written notice thereof to the Indenture Trustee and to the
Issuer. The Indenture Trustee may at any time terminate the agency of an Authenticating Agent by giving written notice thereof to such Authenticating Agent and to the Issuer. Upon receiving such a notice of resignation or upon such a termination, or
if at any time such Authenticating Agent ceases to be eligible in accordance with the provisions of this Section, the Indenture Trustee, with the approval of the Issuer, may appoint a successor Authenticating Agent which will be acceptable to the
Issuer and will give notice to each Noteholder as provided in Section 1.7. Any successor Authenticating Agent upon acceptance of its appointment hereunder will become vested with all the rights, powers and duties of its predecessor
hereunder, with like effect as if originally named as an Authenticating Agent. No successor Authenticating Agent will be appointed unless eligible under the provisions of this Section. 

The Indenture Trustee agrees to pay to each Authenticating Agent (other than an Authenticating Agent appointed at the request of the Issuer,
the Noteholders or the Administrator from time to time or appointed due to a change in law or other circumstance beyond the Indenture Trustee’s control) reasonable compensation for its services under this Section, out of the Indenture
Trustee’s own funds without reimbursement pursuant to this Base Indenture. The Indenture Trustee shall be the initial Authenticating Agent. 

Section 11.13. Direction to Indenture Trustee under the PC Repo Guaranty and the PMH Repo Guaranty. 

In the event the Administrative Agent, on behalf of the Noteholders, determines that the Indenture Trustee, as a beneficiary under the PC Repo
Guaranty or the PMH Repo Guaranty, as applicable, should take certain action to preserve any interests of, or release any lien or security interest of, the Noteholders under the terms of the PC Repo Guaranty or the PMH Repo Guaranty, as applicable,
with respect to the Collateral, the Noteholders acknowledge and agree that the Indenture Trustee shall only take such action as may be directed by the Administrative Agent in writing. 

  
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 Section 11.14. Representations and Covenants of the Indenture Trustee. 

The Indenture Trustee, in its individual capacity and not as Indenture Trustee, represents, warrants and covenants that: 

(a) Citibank is a national banking association duly organized and validly existing under the laws of the United States; 

(b) Citibank has full power and authority to deliver and perform this Base Indenture and has taken all necessary action to authorize the
execution, delivery and performance by it of this Base Indenture and other documents to which it is a party; 
 (c) each of this Base
Indenture and the other Transaction Documents to which Citibank is a party has been duly executed and delivered by Citibank and constitutes its legal, valid and binding obligation, enforceable in accordance with its terms; and 

(d) Citibank has a minimum aggregate capital, surplus and undivided profits of at least $500,000. 

Section 11.15. Indenture Trustee’s Application for Instructions from the Issuer. 

Any application by the Indenture Trustee for written instructions from the Issuer may, at the option of the Indenture Trustee, set forth in
writing any action proposed to be taken or omitted by the Indenture Trustee under and in accordance with this Base Indenture and the date on and/or after which such action shall be taken or such omission shall be effective, provided that such
application shall make specific reference to this Section 11.15. The Indenture Trustee shall not be liable for any action taken by, or omission of, the Indenture Trustee in accordance with a proposal included in such application on or
after the date specified in such application (which date shall not be less than five (5) Business Days after the date the Issuer actually receives such application, unless the Issuer shall have consented in writing to any earlier date) unless
prior to taking any such action (or the Closing Date in the case of an omission), the Indenture Trustee shall have received written instructions in response to such application specifying the action be taken or omitted. 

  
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 Article XII 

Amendments and Indenture Supplements 

Section 12.1. Supplemental Indentures and Amendments Without Consent of Noteholders. 

(a) Unless otherwise provided in the related Indenture Supplement with respect to any amendment to this Base Indenture or such Indenture
Supplement, without the consent of the Noteholders of any Notes or any other Person but with the consent of the Issuer (evidenced by its execution of such amendment), the Indenture Trustee, the Administrator, the Servicer and the Administrative
Agent, and with prior notice to each Note Rating Agency that is then rating any Outstanding Notes, at any time and from time to time, upon delivery of an Issuer Tax Opinion, unless such Issuer Tax Opinion is waived by (i) in the case of an
amendment to such Indenture Supplement the Series Required Noteholders of such Series or (ii) in the case of an amendment to this Base Indenture, the Series Required Noteholders of each Outstanding Series and upon delivery by the Issuer to the
Indenture Trustee of an Officer’s Certificate to the effect that the Issuer reasonably believes that such amendment could not have a material Adverse Effect and is not reasonably expected to have a material Adverse Effect on the Noteholders of
the Notes at any time in the future, may amend this Base Indenture or an Indenture Supplement for any of the following purposes: 

(i) to evidence the succession of another Person to the Issuer, and the assumption by any such successor of the covenants of
the Issuer herein and in the Notes; 
 (ii) to add to the covenants of the Issuer, or to surrender any right or power herein
conferred upon the Issuer, for the benefit of the Noteholders of the Notes of any or all Series or Classes (and if such covenants or the surrender of such right or power are to be for the benefit of less than all Series or Classes of Notes, stating
that such covenants are expressly being included or such surrenders are expressly being made solely for the benefit of one or more specified Series or Classes); 

(iii) to cure any ambiguity, to correct or supplement any provision herein which may be inconsistent with any other provision
herein, or to make any other provisions with respect to matters or questions arising under this Base Indenture; 
 (iv) to
establish any form of Note as provided in Article V, and to provide for the issuance of any Series or Class of Notes as provided in Article VI and to set forth the terms thereof, and/or to add to the rights of the Noteholders of the
Notes of any Series or Class; 
 (v) to evidence and provide for the acceptance of appointment by another corporation as a
successor Indenture Trustee hereunder; 
 (vi) to provide for additional or alternative forms of credit enhancement for any
Series or Class of Notes; 
 (vii) to comply with any regulatory, accounting or tax laws; 

(viii) to prevent the Issuer from being subject to tax on its net income as an association (or publicly traded partnership)
taxable as a corporation or a taxable mortgage pool taxable as a corporation, each for United States federal income tax purposes; 

(ix) determined by the Administrator to be reasonably necessary to maintain the rating currently assigned by the applicable
Note Rating Agency and/or to avoid such Class of Notes being placed on negative watch by such Note Rating Agency; or 

  
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 (x) as otherwise provided in the related Indenture Supplement. 

(b) Additionally, subject to the terms and conditions of Section 12.2, unless otherwise provided in the related Indenture
Supplement with respect to any amendment of this Base Indenture or an Indenture Supplement, and in addition to clauses (i) through (x) above, this Base Indenture or an Indenture Supplement may also be amended by the Issuer,
the Indenture Trustee, the Administrator, the Servicer and the Administrative Agent (in its sole and absolute discretion) without the consent of any of the Noteholders or any other Person, upon delivery of an Issuer Tax Opinion, unless such Issuer
Tax Opinion is waived by (i) in the case of an amendment to such Indenture Supplement the Series Required Noteholders of such Series or (ii) in the case of an amendment to this Base Indenture, the Series Required Noteholders of each
Outstanding Series, for the purpose of adding any provisions to, or changing in any manner or eliminating any of the provisions of, this Base Indenture or modifying in any manner the rights of the Noteholders of the Notes under this Base Indenture
or any other Transaction Document; provided, however, that (i) the Issuer shall deliver to the Indenture Trustee an Officer’s Certificate to the effect that the Issuer reasonably believes that such amendment could not have a
material Adverse Effect on any Outstanding Notes and is not reasonably expected to have a material Adverse Effect at any time in the future, and (ii) if any Outstanding Notes are then rated by a Note Rating Agency, (1) each such Note
Rating Agency confirms in writing to the Indenture Trustee that such amendment will not cause a Ratings Effect on any Outstanding Notes or (2) if the Administrator and the Administrative Agents determine in their reasonable judgment that an
applicable Note Rating Agency no longer provides such written confirmation described in the foregoing clause (1), (a) the Administrator shall provide notice of such amendment to the related Note Rating Agency and (b) each
Administrative Agent shall have provided their prior written consent to such amendment. 
 (c) Any amendment of this Base Indenture which
affects the rights, duties, immunities, obligations or liabilities of the Owner Trustee in its capacity as owner trustee under the Trust Agreement shall require the written consent of the Owner Trustee. 

(d) Any amendment of this Base Indenture which affects the rights, duties, immunities, obligations or liabilities of the Disposition Manager
hereunder shall require the written consent of the Disposition Manager. 
 Section 12.2. Supplemental Indentures and Amendments with Consent of
Noteholders. 
 In addition to any amendment permitted pursuant to Section 12.1, and subject to the terms and provisions of
each Indenture Supplement with respect to any amendment to this Base Indenture or such Indenture Supplement, with prior notice to each Note Rating Agency and the consent of the Majority Noteholders of each Series materially and adversely affected by
such amendment of this Base Indenture, including any Indenture Supplement, by Act of said Noteholders delivered to the Issuer and the Indenture Trustee, the Issuer, the Administrator, the Servicer, the Administrative Agent and the Indenture Trustee
upon delivery of an Issuer Tax Opinion (unless the Noteholders unanimously consent to waive such opinion), may enter into an 

  
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amendment of this Base Indenture for the purpose of adding any provisions to, or changing in any manner or eliminating any of the provisions of, this Base Indenture of modifying in any manner the
rights of the Noteholders of the Notes of each such Series or Class under this Base Indenture or any Indenture Supplement; provided, however, that no such amendment will, without the consent of the Noteholder of each Outstanding Note
materially and adversely affected thereby: 
 (a) change the scheduled payment date of any payment of interest on any Note held by such
Noteholder, or change a Payment Date or Stated Maturity Date (other than the exercise of an optional extension as set forth in the related Indenture Supplement) of any Note held by such Noteholder; 

(b) reduce the Note Balance of, or the Note Interest Rate, the Step-Up Fee Rate or the Default Supplemental Fee Rate on any Note held by such
Noteholder, or change the method of computing the Note Balance or Note Interest Rate in a manner that is adverse to such Noteholder; 
 (c)
impair the right to institute suit for the enforcement of any payment on any Note held by such Noteholder; 
 (d) reduce the percentage of
Noteholders of the Outstanding Notes (or of the Outstanding Notes of any Series or Class), whose consent is required for any such amendment, or whose consent is required for any waiver of compliance with the provisions of this Base Indenture or any
Indenture Supplement or of defaults hereunder or thereunder and their consequences, provided for in this Base Indenture or any Indenture Supplement; 

(e) modify any of the provisions of this Section or Section 8.14, except to increase any percentage of Noteholders required to
consent to any such amendment or to provide that other provisions of this Base Indenture or any Indenture Supplement cannot be modified or waived without the consent of the Noteholder of each Outstanding Note adversely affected thereby; 

(f) permit the creation of any lien or other encumbrance on the Collateral that is prior to the lien in favor of the Indenture Trustee for the
benefit of the Noteholders of the Notes; 
 (g) change the method of computing the amount of principal of, or interest on, any Note held by
such Noteholder on any date; 
 (h) increase any Advance Rates in respect of Notes held by such Noteholder in respect of Notes held by such
Noteholder; or 
 (i) change, modify or waive any Scheduled Principal Payment Amount. 

In addition, any Indenture Supplement may be amended, supplemented or otherwise modified with the consent of each of the Noteholders of the
Notes of the related Series upon delivery of all opinions and certificates and notice to each Note Rating Agency required pursuant to the first paragraph of this Section 12.2 or as otherwise specified in the applicable Indenture
Supplement. The consent of a Person that is an Administrative Agent for one or more Series but is not an Administrative Agent for any other Series is not required for any amendment, supplement or modification to any such other Series. 

  
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 An amendment of this Base Indenture which changes or eliminates any covenant or other
provision of this Base Indenture which has expressly been included solely for the benefit of one or more particular Series or Class of Notes, or which modifies the rights of the Noteholders of Notes of such Series or Class with respect to such
covenant or other provision, will be deemed not to affect the rights under this Base Indenture of the Noteholders of Notes of any other Series or Class. 

It will not be necessary for any Act of Noteholders under this Section to approve the particular form of any proposed amendment, but it will
be sufficient if such Act will approve the substance thereof. 

In addition
to the foregoing, each Holder of a Term Note issued on or after the Amendment Effective Date, and any transferee thereto, by accepting such Term Note shall be deemed to have consented to, and the Issuer, the Administrator, the Servicer, the
Administrative Agent and the Indenture Trustee upon prior notice to each Note Rating Agency may enter into, any amendment, restatement, modification or supplement to this Base Indenture, an Indenture Supplement or any other Transaction Document for
the purpose of adding any provisions to, or changing in any manner or eliminating any of the provisions of, this Base Indenture or modifying in any manner the rights of the such Holders of Term Notes under this Base Indenture, any related Indenture
Supplement or any other Transaction Document as may be necessary or advisable, upon certification relating to the purpose of such amendment by the Administrator (upon which the Indenture Trustee shall be entitled to conclusively rely without
liability therefore), to cure any inconsistency between this Base Indenture, any Indenture Supplement or any other Transaction Document and any provision of the Acknowledgment Agreement or the Fannie Mae Guide, as each may be amended, restated,
supplemented or otherwise modified from time to time. For the avoidance of doubt, the consent of the VFN Noteholders and of the Holders of the Series 2018-FT1 Notes (to the extent such Notes remain Outstanding) shall be required to effect the
amendments described in this paragraph. 
 Section 12.3. Execution of Amendments.

 In executing or accepting the additional trusts created by any amendment or Indenture Supplement of this Base Indenture permitted by
this Article XII or the modifications thereby of the trusts created by this Base Indenture, the Indenture Trustee will be entitled to receive, and (subject to Section 11.1) will be fully protected in relying upon, an Opinion of
Counsel stating that the execution of such amendment or Indenture Supplement is authorized and permitted by this Base Indenture and that all conditions precedent thereto have been satisfied. No such Opinion of Counsel shall be required in connection
with any amendment or Indenture Supplement consented to by all Noteholders if all of the Noteholders have directed the Indenture Trustee in writing to execute such amendment or Indenture Supplement. The Indenture Trustee may, but will not be
obligated to, enter into any such amendment or Indenture Supplement which affects the Indenture Trustee’s own rights, duties or immunities under this Base Indenture or otherwise. 

  
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 Section 12.4. Effect of Amendments. 

Upon the execution of any amendment of this Base Indenture or any Indenture Supplement, or any supplemental indentures under this Article
XII, this Base Indenture and the related Indenture Supplement will be modified in accordance therewith with respect to each Series and Class of Notes affected thereby, or all Notes, as the case may be, and such amendment will form a part of this
Base Indenture and the related Indenture Supplement for all purposes; and every Noteholder of Notes theretofore or thereafter authenticated and delivered hereunder will be bound thereby to the extent provided therein. 

Section 12.5. Reference in Notes to Indenture Supplements. 

Notes authenticated and delivered after the execution of any amendment of this Base Indenture or any Indenture Supplement or any supplemental
indenture pursuant to this Article may, and will if required by the Indenture Trustee, bear a notation in form approved by the Indenture Trustee as to any matter provided for in such amendment or supplemental indenture. If the Issuer so determines,
new Notes so modified as to conform, in the opinion of the Indenture Trustee and the Issuer, to any such amendment or supplemental indenture may be prepared and executed by the Issuer and authenticated and delivered by the Indenture Trustee in
exchange for Outstanding Notes. 
 Section 12.6. Amendments to Appendix A 

Any amendment of Appendix A to this Base Indenture which affects the rights, duties, immunities, obligations or liabilities of any party
to this Base Indenture or to any other Transaction Document shall require the written consent of such party. 
 Article XIII 

Early Redemption of Notes 

Section 13.1. Optional Redemption. 

(a) Unless otherwise provided in the applicable Indenture Supplement for a Series or Class of Notes, the Issuer has the right, but not the
obligation, to: (i) redeem a Series or Class of Term Notes in whole or in part (so long as, in the case of any partial redemption, such redemption is funded using the proceeds of the issuance and sale of one or more new Classes of Notes as
further specified in the related Indenture Supplement or from any other amounts received by the Issuer pursuant to the PC Repurchase Agreement (or otherwise) other
thancash or funds of PMC and not Collections on
MSRs) on a date specified in the applicable Indenture Supplement or on any Payment Date (a “Redemption Payment Date”) on or after the Payment Date on which the aggregate Note Balance (after giving effect to all payments, if
any, on that day) of such Series or Class is reduced to less than the Redemption Percentage of the Initial Note Balance and (ii) redeem a Series or Class of Variable Funding Notes in whole or in part on a date specified in the applicable
Indenture Supplement. 

  
 123 

 If the Issuer, at the direction of the Administrator, elects to redeem a Series or Class of
Notes pursuant to this Section 13.1, it will cause the Issuer to notify the Indenture Trustee and the Noteholders of such redemption at least five (5) days (or other times specified in the related Indenture Supplement) prior to the
Redemption Payment Date. Unless otherwise specified in the Indenture Supplement applicable to the Notes to be so redeemed, the redemption price of a Series or Class so redeemed will equal the Redemption Amount, the payment of which will be subject
to the allocations, deposits and payments sections of the related Indenture Supplement, if any. 
 If the Issuer is unable to pay the
Redemption Amount in full on the Redemption Payment Date, such redemption shall be cancelled, notice of such cancelled redemption shall be sent to all Secured Parties and payments on such Series or Class of Notes will thereafter continue to be made
in accordance with this Base Indenture and the related Indenture Supplement, and the Noteholders of such Series or Class of Notes and the related Administrative Agent shall continue to hold all rights, powers and options as set forth under this Base
Indenture, until the Outstanding Note Balance of such Series or Class, plus all accrued and unpaid interest and other amounts due in respect of the Notes, is paid in full or the Stated Maturity Date occurs, whichever is earlier, subject to
Article VII, Article VIII and the allocations, deposits and payments sections of this Base Indenture and the related Indenture Supplement. 

(b) Unless otherwise specified in the related Indenture Supplement, if the VFN Principal Balance of any Class of VFNs has been reduced to zero,
then, upon five (5) Business Days’ prior written notice to the Noteholder thereof, the Issuer may declare such Class no longer Outstanding, in which case the Noteholder thereof shall submit such Class of Notes to the Indenture Trustee for
cancellation. 
 (c) The Notes of any Series or Class of Notes shall be subject to optional redemption under this Article XIII, in
whole but not in part, by the Issuer, through (i) the use of the proceeds of issuance and sale of a new Series of Notes issued hereunder, or (ii) the use of the proceeds received of any amounts funded under any Variable Funding Notes on
any Business Day after the date on which the related Revolving Period ends, and on any Business Day within five (5) days prior to the end of such Revolving Period or at other times specified in the related Indenture Supplement upon five
(5) days’ prior notice to the Indenture Trustee and the Noteholders. Following issuance of the Redemption Notice by the Issuer pursuant to Section 13.2 below, the Issuer shall be required to purchase the entire aggregate Note
Balance of such Series or Class of Term Notes for the applicable Redemption Amount on the date set for such redemption (the “Redemption Date”). 

(d) The Issuer may redeem any Series or Class of Notes through (i) the use of proceeds from the issuance and sale of a new Series or Class
of Notes issued hereunder, or (ii) the use of proceeds received following a VFN Note Balance Adjustment Request, on any other Business Day specified in the related Indenture Supplement. 

(e) If necessary to avoid a Borrowing Base Deficiency, the Notes of any Series or Class of Variable Funding Notes shall be subject to repayment
by the Issuer, in whole or in part, up to the amount necessary to avoid a Borrowing Base Deficiency, using any other cash or funds of the Issuer other than Collections on the Participation Certificates (Collections for this purpose include payments
of the PMH Repurchase Price), upon one (1) Business Day’s prior notice from the Issuer to the Indenture Trustee and the related VFN Noteholders. Any such repayment pursuant to this Section 13.1(d) shall reduce the principal
balance of such Variable Funding Notes but shall not result in a reduction of any funding commitments related thereto or the Maximum VFN Principal Balance thereof (unless otherwise agreed between the Noteholders of such Variable Funding Notes and
the Issuer) and (ii) may be made on a non-pro rata basis with other Series of Variable Funding Notes. 

  
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 (f) Notwithstanding any other provision of this Base Indenture, the early redemption rights
of the Issuer set forth in this Section 13.1 are in addition to, the Issuer’s rights set forth in Section 2.01(b)(ii) to remove as Collateral the Participation Certificates and Mortgage Loans. 

Section 13.2. Notice. 
 (a) Promptly
after the election to exercise any optional redemption pursuant to Section 13.1, the Issuer will notify the Indenture Trustee and each related Note Rating Agency in writing of the identity and Note Balance of the affected Series or Class
of Notes to be redeemed. 
 (b) Notice of redemption (each a “Redemption Notice”) will promptly be given as provided
in Section 1.7. All notices of redemption will state (i) the Series or Class of Notes to be redeemed pursuant to this Article XIII, (ii) the date on which the redemption of the Series or Class of Notes to be redeemed
pursuant to this Article will begin, which will be the Redemption Payment Date, and (iii) the redemption price for such Series or Class of Notes. 

Article XIV 

Miscellaneous 
 Section 14.1. No
Petition. 
 Each of the Indenture Trustee, the Administrative Agent, the Servicer and the Administrator, by entering into this Base
Indenture, each Noteholder, by accepting a Note and each Note Owner by accepting a Note or a beneficial interest in a Note agrees that it will not at any time prior to the date which is one year and one day, or, if longer, the applicable preference
period then in effect, after the payment in full of all the Notes, institute against the Issuer, or join in any institution against the Issuer of, any receivership, insolvency, bankruptcy or other similar proceedings, or other proceedings under any
United States federal or state bankruptcy or similar law in connection with any obligations relating to the Notes and this Base Indenture; provided, however, that nothing contained herein shall prohibit or otherwise prevent the
Indenture Trustee from filing proofs of claim in any such proceeding. 
 Section 14.2. No Recourse. 

No recourse may be taken, directly or indirectly, with respect to the obligations of the Issuer or the Indenture Trustee on the Notes or under
the Indenture or any certificate or other writing delivered in connection therewith, against (i) the Indenture Trustee or Owner Trustee in their individual capacities, (ii) any owner of a beneficial ownership interest in the Issuer or
(iii) any 

  
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partner, owner, beneficiary, agent, officer, director, employee or “control person” within the meaning of the 1933 Act and the 1934 Act of the Indenture Trustee or Owner Trustee in its
individual capacity, any holder of a beneficial ownership interest in the Issuer or the Indenture Trustee or Owner Trustee or of any successor or assign of the Indenture Trustee or Owner Trustee in its individual capacity, except as any such Person
may have expressly agreed and except that any such partner, owner or beneficiary shall be fully liable, to the extent provided by applicable law, for any unpaid consideration for stock, unpaid capital contribution or failure to pay any installment
or call owing to such entity. 
 Section 14.3. Tax Treatment. 

Notwithstanding anything to the contrary set forth herein, the Issuer has entered into this Base Indenture with the intention that for United
States federal, state and local income and franchise tax purposes the Notes will qualify as indebtedness secured by the Participation Certificates and the MSRs, unless retained by the Issuer or a single beneficial owner of the equity of the Issuer
for U.S. federal income tax purposes or a single affiliate of the Issuer whose ownership would cause the Notes to be treated as equity under Treasury Regulations promulgated under section 385 of the Code (each, a “Retained
Note”). The Issuer, by entering into this Base Indenture, each Noteholder, by its acceptance of a Note and each purchaser of a beneficial interest therein, by accepting such beneficial interest, agree to treat such Notes (other than any
Retained Note) as debt for United States federal, state and local income and franchise tax purposes, unless otherwise required by applicable law in a proceeding of final determination. The Indenture Trustee shall treat the Trust Estate as a security
device only. The provisions of this Base Indenture shall be construed in furtherance of the foregoing intended tax treatment. 
 Section 14.4.
Alternate Payment Provisions. 
 Notwithstanding any provision of this Base Indenture or any of the Notes to the contrary, the Issuer,
with the written consent of the Indenture Trustee and the Paying Agent, may enter into any agreement with any Noteholder of a Note providing for a method of payment or notice that is different from the methods provided for in this Base Indenture for
such payments or notices. The Issuer will furnish to the Indenture Trustee and the Paying Agent a copy of each such agreement and the Indenture Trustee and the Paying Agent will cause payments or notices, as applicable, to be made in accordance with
such agreements. 
 Section 14.5. Termination of Obligations. 

The respective obligations and responsibilities of the Indenture Trustee created hereby (other than the obligation of the Indenture Trustee to
make payments to Noteholders as hereinafter set forth) shall terminate upon satisfaction and discharge of this Base Indenture as set forth in Article VII, except with respect to the payment obligations described in
Section 14.6(b). Upon this event, the Indenture Trustee shall release, assign and convey to the Issuer or any of its designees, without recourse, representation or warranty, all of its right, title and interest in the Collateral, whether
then existing or thereafter created, all monies due or to become due and all amounts received or receivable with respect thereto (including all monies then held in any Trust Account) and all proceeds thereof, except for amounts held by the Indenture
Trustee pursuant to Section 14.6(b). The Indenture Trustee shall execute and deliver such instruments of transfer and assignment as shall be provided to it, in each case without recourse, as shall be reasonably requested by the Issuer to
vest in the Issuer or any of its designees all right, title and interest which the Indenture Trustee had in the Collateral. 

  
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 Section 14.6. Final Payment. 

(a) The Issuer shall give the Indenture Trustee at least ten (10) days’ prior written notice of the Payment Date on which the
Noteholders of any Series or Class may surrender their Notes for payment of the final payment on and cancellation of such Notes. Not later than the fifth (5th) day prior to the Payment Date on which the final payment in respect of such Series
or Class is payable to Noteholders, the Indenture Trustee or the Paying Agent shall provide notice to Noteholders of such Series or Class specifying (i) the date upon which final payment of such Series or Class will be made upon presentation
and surrender of Notes of such Series or Class at the office or offices therein designated, (ii) the amount of any such final payment and (iii) that the Record Date otherwise applicable to such payment date is not applicable, payments
being made only upon presentation and surrender of such Notes at the office or offices therein specified. The Indenture Trustee shall give such notice to the Note Registrar and the Paying Agent at the time such notice is given to Noteholders. 

(b) Notwithstanding a final payment to the Noteholders of any Series or Class (or the termination of the Issuer), except as otherwise provided
in this paragraph, all funds then on deposit in any Account allocated to such Noteholders shall continue to be held in trust for the benefit of such Noteholders, and the Paying Agent or the Indenture Trustee shall pay such funds to such Noteholders
upon surrender of their Notes, if such Notes are Definitive Notes. In the event that all such Noteholders shall not surrender their Notes for cancellation within six (6) months after the date specified in the notice from the Indenture Trustee
described in clause (a) above, the Indenture Trustee shall give a second (2nd) notice to the remaining such Noteholders to surrender their Notes for cancellation and receive the final payment with respect thereto. If within one year
after the second (2nd) notice all such Notes shall not have been surrendered for cancellation, the Indenture Trustee may take appropriate steps, or may appoint an agent to take appropriate steps, to contact the remaining such Noteholders
concerning surrender of their Notes, and the cost thereof (including costs related to giving the second (2nd) notice) shall be paid out of the funds in the Collection and Funding Account. The Indenture Trustee and the Paying Agent shall pay to
the Issuer any monies held by them for the payment of principal or interest that remains unclaimed for two (2) years. After payment to the Issuer, Noteholders entitled to the money must look to the Issuer for payment as general creditors unless
an applicable abandoned property law designates another Person. 
 Section 14.7. Base Servicing Fee. 

The parties hereto acknowledge that PMC has the right to withdraw the Base Servicing Fee with respect to any Portfolio Mortgage Loan out of
collections it receives with respect to such Portfolio Mortgage Loan. 

  
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 Section 14.8. Owner Trustee Limitation of Liability. 

It is expressly understood and agreed by the parties hereto that (a) this Base Indenture is executed and delivered by Wilmington Savings
Fund Society, FSB (“WSFS”), not individually or personally but solely as trustee of the Issuer, in the exercise of the powers and authority conferred and vested in it, (b) each of the representations, warranties,
undertakings and agreements herein made on the part of the Issuer is made and intended not as personal representations, warranties, undertakings and agreements by WSFS but is made and intended for the purpose of binding only the Issuer,
(c) nothing herein contained shall be construed as creating any liability on WSFS, individually or personally, to perform any covenant either expressed or implied contained herein, all such liability, if any, being expressly waived by the
parties hereto and by any Person claiming by, through or under the parties hereto, (d) WSFS has made no investigation as to the accuracy or completeness of any representations or warranties made by the Issuer in this Base Indenture and (e)
under no circumstances shall WSFS be personally liable for the payment of any indebtedness or expenses of the Issuer or be liable for the breach or failure of any obligation, representation, warranty or covenant made or undertaken by the Issuer
under this Base Indenture or any other related documents. 
 Section 14.9. Communications with Rating Agencies. 

If the Servicer, the Administrative Agent or the Indenture Trustee shall receive any written or oral communication from any Note Rating Agency
(or any of the respective officers, directors or employees of any Note Rating Agency) with respect to the transactions contemplated hereby or under the Transaction Documents or in any way relating to the Notes, the Servicer, the Administrative Agent
and the Indenture Trustee agree to refrain from communicating with such Note Rating Agency and to promptly notify the Administrator of such communication; provided, however, that if the Servicer, the Administrative Agent or the
Indenture Trustee receives an oral communication from a Note Rating Agency, the Servicer, the Administrative Agent or the Indenture Trustee, as the case may be, is authorized to refer such Note Rating Agency to the Administrator, who will respond to
such oral communication. At the written request of the Administrator, the Servicer, the Administrative Agent and the Indenture Trustee agree to cooperate with the Administrator to provide certain information to the Administrator that may be
reasonably required by a Note Rating Agency to rate or to perform ratings surveillance on the Notes, and acknowledge and agree that the Administrator shall be permitted, in turn, to provide such information to the Note Rating Agencies via the
internet address identified therefor by the Administrator; provided, that the Servicer, the Administrative Agent and the Indenture Trustee shall only be required to provide such information that is reasonably available to such party at the
time of request. Notwithstanding any other provision of this Base Indenture or the other Transaction Documents, under no circumstances shall the Servicer, the Administrative Agent or the Indenture Trustee be required to participate in telephone
conversations or other oral communications with a Note Rating Agency, nor shall the Servicer, the Administrative Agent or the Indenture Trustee be prohibited from communicating with any nationally recognized statistical rating organization about
matters other than the Notes or the transactions contemplated hereby or by the Transaction Documents. Furthermore, the Indenture Trustee may make statements to Noteholders available on its website (as contemplated by Section 3.5(a)
hereof), and such action is not prohibited by this Section 14.9. 

  
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 Section 14.10. Authorized Representatives. 

Each individual designated as an authorized representative of the Indenture Trustee, Calculation Agent, Paying Agent and Securities
Intermediary, PMC, the Administrative Agents and the Issuer (each, an “Authorized Representative”), is authorized to give and receive notices, requests and instructions and to deliver certificates and documents in connection
with this Base Indenture on behalf of each of the Indenture Trustee, Calculation Agent, Paying Agent, Securities Intermediary, PMC, PLS, the Administrative Agents and the Issuer, respectively, and the specimen signature for each such Authorized
Representative of the Indenture Trustee, Calculation Agent, Paying Agent, Securities Intermediary, PMC, the Administrative Agents and the Issuer initially authorized hereunder is set forth on Exhibits C-1, C-2, C-3 and
C-4, respectively. From time to time, the Indenture Trustee, the Calculation Agent, the Paying Agent, the Securities Intermediary, PMC, PLS, the Administrative Agents and the Issuer may, by delivering to the others a revised exhibit, change
the information previously given pursuant to this Section 14.10, but each of the parties hereto shall be entitled to rely conclusively on the then current exhibit until receipt of a superseding exhibit. 

Section 14.11. Performance of the Issuer’s Duties by the Owner Trustee and the Administrator. 

(a) The parties hereto hereby acknowledge and agree (i) that certain duties of the Issuer will be performed on behalf of the Issuer by the
Administrator pursuant to the Administration Agreement and hereby acknowledge and accept the terms of such agreement as of the date hereof and (ii) except as expressly set forth herein, the Owner Trustee shall have no duty or obligation to
perform the obligations of the Issuer hereunder or to monitor the compliance of the Issuer with the terms hereof. 
 (b) Any successor to the
Owner Trustee appointed pursuant to the terms of the Trust Agreement (or any corporation into which the Owner Trustee may be merged or with which it may be consolidated, or any corporation resulting from any merger or consolidation to which the
Owner Trustee shall be a party) shall be the successor Owner Trustee under the Trust Agreement for purposes of this Base Indenture without the execution or filing of any paper, instrument or further act to be done on the part of the parties hereto.

 Section 14.12. Noteholder or Note Owner Communications with the Indenture Trustee. 

A Noteholder (if the Notes are represented by Definitive Notes) or a Note Owner (if the Notes are represented by Book-Entry Notes) may
communicate with the Indenture Trustee and give notices and make requests and demands and give directions to the Indenture Trustee through the procedures of the Depository and by notifying the Indenture Trustee and providing to the Indenture Trustee
a copy of the communication such Noteholder or Note Owner, as applicable, proposes to send. Any Note Owner must provide written certification stating that the Note Owner is a beneficial owner of a Note, together with supporting documentation such as
a trade confirmation, an account statement, a letter from a broker or dealer verifying ownership or another similar document evidencing ownership of a Note. The Indenture Trustee will not be required to take action in response to requests, demands
or directions of a Noteholder or a Note Owner, unless the Noteholder or Note Owner has offered reasonable security or indemnity reasonably satisfactory to the Indenture Trustee to protect it against the fees and expenses that it may incur in
complying with the request, demand or direction. 

  
 129 

 Section 14.13. Third-Party Beneficiaries. 

The parties hereto hereby acknowledge and agree that the Disposition Manager shall be an express third party beneficiary of this Indenture.

 [Signature Pages Follow] 

  
 130 

 IN WITNESS WHEREOF, the parties hereto have caused this Base Indenture to be duly executed
as of the day and year first above written. 
  

	
	PMT ISSUER TRUST - FMSR, as Issuer
	
	By: Wilmington Savings Fund Society FSB, not in its individual capacity but solely as Owner Trustee
	
	By:                                     
                                         
                  
	Name:                                     
                                         
            
	Title:                                     
                                         
              

  
 131 

 
	
	CITIBANK, N.A., as Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary and not in its individual capacity
	
	By:                                     
                                         
                  
	Name:                                     
                                         
            
	Title:                                     
                                         
              

  
 132 

 
	
	PENNYMAC CORP.,
	    as Servicer and as Administrator
	
	By:                                     
                                         
                  
	Name:                                     
                                         
            
	Title:                                     
                                         
              

  
 133 

 
	
	CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC, as Administrative Agent
	
	By:                                     
                                         
                  
	Name:                                     
                                         
            
	Title:                                     
                                         
              

  
 134 

 Schedule 1 

Participation Certificates Schedule 

Participation Certificate, dated as of December 20, 2017, evidencing a participation interest granted to the Indenture Trustee in the Retained MSR Excess
Spread, as more particularly described in the Retained Excess Spread Participation Agreement (the “Retained MSR Excess Spread PC”). 

Participation Certificate, dated as of December 20, 2017, evidencing a participation interest granted to the Indenture Trustee in the Sold MSR Excess
Spread, as more particularly described in the Excess Spread Participation Agreement (the “Sold MSR Excess Spread PC”). 

  
 135 

 Schedule 2 

Participation Agreements Schedule 
 Third
Amended and Restated Master Spread Acquisition and MSR Servicing Agreement, dated as of December 20, 2017 between PennyMac Corp., as seller, and PennyMac Holdings, LLC, as purchaser (the “Excess Spread Participation
Agreement”). 
 Retained MSR Excess Spread Participation Agreement, dated as of December 20, 2017 between PennyMac Corp., as company, and
PennyMac Corp., as the Initial Participant (the “Retained MSR Excess Spread Participation Agreement”). 

  
 136 

 Schedule 3 

Eligible Securities Schedule 

[To be provided electronically, if any] 

  
 137 

 Schedule 4 

Required Information Regarding Mortgage Loans 

[On file with the Administrative Agent] 

  
 138 

 Schedule 5 

Wire Instructions 
 TRANSACTION
PARTIES: 
  

			
	If to PennyMac Corp.:	  	
	Name of Bank:	  	City National Bank
	ABA Number of Bank:	  	122016066
	Name of Account:	  	PennyMac Corp. Operating Account
	Account Number at Bank:	  	013659486

 If to the Credit Suisse First Boston Mortgage Capital LLC, as Administrative Agent: 

 

			
	Name of Bank:	  	BNY Mellon
	ABA Number of Bank:	  	021000018
	Name of Account:	  	CSFB Mortgage Capital
	Account Number:	  	8901149543

 If to the Owner Trustee: 
  

			
	Name of Bank:	  	Wells Fargo Bank, N.A.
	ABA Number of Bank:	  	121000248
	Account Number at Bank:	  	2000003496376
	FFC:	  	CH129352-0 PMT Issuer Trust

 TRUST ACCOUNTS: 
 If to
the Collection and Funding Account: 
  

			
	Name of Bank:	  	Citibank, N.A.
	ABA Number of Bank:	  	021-000-089
	Account Number at Bank:	  	3617-2242
	Account Name:	  	SF Incoming Wire Account
	Ref:	  	A/C 119463 PMAC17FMSR COLLECTION AND FUNDING AC

 If to the Note Payment Account: 
  

			
	Name of Bank:	  	Citibank, N.A.
	ABA Number of Bank:	  	021-000-089
	Account Number at Bank:	  	3617-2242
	Account Name:	  	SF Incoming Wire Account
	Ref:	  	A/C 119464 PMAC17FMSR NOTE PAYMENT AC

 If to the Expense Reserve Account: 
  

			
	Name of Bank:	  	Citibank, N.A.
	ABA Number of Bank:	  	021-000-089
	Account Number at Bank:	  	3617-2242

  
 139 

			
	Account Name:	  	SF Incoming Wire Account
	Ref:	  	A/C 119466 PMAC17FMSR EXPENSE RESERVE AC

 If to the Eligible Securities Account: 
  

			
	Name of Bank:	  	Citibank, N.A.
	ABA Number of Bank:	  	021-000-089
	Account Number at Bank:	  	3617-2242
	Account Name:	  	SF Incoming Wire Account
	Ref:	  	A/C 119471 PMAC17FMSR Eligible Securities Account

  
 140 

 APPENDIX A 

DEFINED TERMS 

“1933 Act” means the Securities Act of 1933. 

“1934 Act” means the Securities Exchange Act of 1934. 

“Accepted Servicing Practices” means, with respect to any Mortgage Loan, (i) 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, and (ii) those practices required from time to time by Fannie Mae. 

“Account Bank” means Bank of America, N.A., and any successor thereto in such capacity. 

“Acknowledgment Agreement” means collectively, (i) the Second Amended and Restated Acknowledgment Agreement, dated as of
April 25,
2018,March 30, 2021, by and among Fannie Mae, PMC,
PMH, PMT and the Indenture Trustee, and (ii) the Subordination of Interest Agreement. 
 “Act” when used with
respect to any Noteholder, has the meaning set forth in Section 1.5 of the Base Indenture. 
 “Act of Insolvency”
means, with respect to any Person or its Affiliates, (i) the filing of a petition, commencing, or authorizing the commencement of any case or proceeding, or the voluntary joining of any case or proceeding under any bankruptcy, insolvency,
reorganization, liquidation, dissolution or similar law relating to the protection of creditors, or suffering any such petition or proceeding to be commenced by another which is consented to, not timely contested or results in entry of an order for
relief; (ii) the seeking of the appointment of a receiver, trustee, custodian or similar official for such party or an Affiliate or any substantial part of the property of either; (iii) the appointment of a receiver, conservator, or
manager for such party or an Affiliate by any governmental agency or authority having the jurisdiction to do so; (iv) the making or offering by such party or an Affiliate of a composition with its creditors or a general assignment for the
benefit of creditors; (v) the admission by such party or an Affiliate of such party of its inability to pay its debts or discharge its obligations as they become due or mature; or (vi) that any governmental authority or agency or any
person, agency or entity acting or purporting to act under governmental authority shall have taken any action to condemn, seize or appropriate, or to assume custody or control of, all or any substantial part of the property of such party or of any
of its Affiliates, or shall have taken any action to displace the management of such party or of any of its Affiliates or to curtail its authority in the conduct of the business of such party or of any of its Affiliates. 

“Action” when used with respect to any Noteholder, has the meaning set forth in Section 1.5 of the Base Indenture. 

  
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 “Activation Notice” has the meaning set forth in the Dedicated Account
Control Agreement. 
 “Additional Note Payment” means, for each Series of Notes, the meaning as specified in the related
Indenture Supplement, if specified therein. 
 “Administration Agreement” means the Administration Agreement, dated as of
the Closing Date, by and between the Issuer and the Administrator. 
 “Administrative Agent” means (a) initially, CSFB
or any Affiliate of the foregoing or any successor thereto in respect of the Series of Notes for which it is designated as an Administrative Agent therefor in the related Indenture Supplement, and (b) in respect of any Series, the Person(s)
specified in the related Indenture Supplement. Unless the context indicates otherwise in any Indenture Supplement for such Indenture Supplement, each reference to the “Administrative Agent” herein or in any other Transaction Document shall
be deemed to constitute a collective reference to each Person that is an Administrative Agent. If (x) any Person that is an Administrative Agent resigns as an Administrative Agent in respect of all Series for which it was designated as the
Administrative Agent or (y) all of the Notes in respect of each Series for which any Person was designated as the Administrative Agent are repaid or redeemed in full, such Person shall cease to be an “Administrative Agent” for
purposes hereof and each other Transaction Document. 
 “Administrative Expenses” means any amounts due from or accrued for
the account of the Issuer with respect to any period for any administrative expenses incurred by the Issuer, including (i) to any accountants, agents, counsel and other advisors of the Issuer (other than the Owner Trustee) for reasonable and
customary fees and expenses; (ii) to any other person in respect of any governmental fee, charge or tax; (iii) to any other Person (other than the Owner Trustee) in respect of any other fees or expenses permitted under this Base Indenture
(including indemnities) and the documents delivered pursuant to or in connection with this Base Indenture and the Notes; (iv) any and all fees and expenses of the Issuer incurred in connection with its entry into and the performance of its
obligations under any of the agreements contemplated by this Base Indenture; (v) the orderly winding up of the Issuer following the cessation of the transactions contemplated by this Base Indenture; and (vi) any and all other reasonable and
customary fees and expenses incurred by the Issuer in connection with the transactions contemplated by this Base Indenture, but not in duplication of any amounts specifically provided for in respect of the Indenture Trustee, the Owner Trustee, the
Administrator or any VFN Noteholder. 
 “Administrator” means PMC, in its capacity as the Administrator on behalf of the
Issuer, and any successor to PMC in such capacity. 
 “Administrator’s Calculation Report” has the meaning set forth
in Section 3.1(a) of the Base Indenture. 
 “Advance Reimbursement Amount” means any amount which the Servicer
collects on a Mortgage Loan, withdraws from a custodial account or receives from any successor servicer or Fannie Mae pursuant to the Fannie Mae Guide, as reimbursement for advances in its capacity as Servicer with respect to Fannie Mae MBS. 

  
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 “Advance Rate” means, with respect to any Series of Notes, and for any
Class within such Series, if applicable, the percentage specified as its “Advance Rate” in the Indenture Supplement for such Series. 

“Advance Rate Trigger Event” means the occurrence of an Advance Rate Trigger 1 Event or an Advance Trigger 2 Event. 

“Advance Rate Trigger 1 Event” means the occurrence of any of the following: 

(a) the Servicer SDQ Rate exceeds 2.00% over three (3) consecutive months in a quarter; 

(b) Net Earnings are negative for two (2) consecutive calendar quarters; or 

(c) a decline in the Lender Adjusted Net Worth of 25% over a single quarter. “Advance Rate Trigger 2 Event”
means the occurrence of any of the following: 
 (a) the Servicer SDQ Rate exceeds 4.00% over three (3) consecutive
months in a quarter; 
 (b) Net Earnings are negative for four (4) consecutive quarters and there is a decline in the
Lender Adjusted Net Worth of 30% or more during the same period; 
 (c) Fannie Mae issues a PIP and the PIP is not remedied
within six (6) months; or 
 (d) a decline in the Lender Adjusted Net Worth of 40% over two (2) consecutive quarters.

 “Adverse Claim” means a lien, security interest, charge, encumbrance or other right or claim of any Person (other than
(A) the liens created in favor of the Secured Parties or assigned to the Secured Parties by (i) this Base Indenture, (ii) the PC Repurchase Agreement or (iii) any other Transaction Document, (B) the rights of Fannie Mae
under the Fannie Mae Lender Contract) or (C) the Owner Trustee Lien. 
 “Adverse Effect” when used in this Base
Indenture with respect to any Series or Class of Notes and any event, means that such event is reasonably likely, at the time of its occurrence, to (i) result in the occurrence of an Event of Default relating to such Series or Class of Notes,
(ii) materially adversely affect (A) the amount of funds available to be paid to the Noteholders of such Series or Class of Notes pursuant to this Base Indenture, (B) the timing of such payments or (C) the rights or interests of
the Noteholders of such Series or Class, (iii) materially adversely affect the Security Interest of the Indenture Trustee for the benefit of the Secured Parties in the Collateral unless otherwise permitted by this Base Indenture, or
(iv) materially adversely affect the collectability of the Collateral. 

  
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 “Affiliate” means, with respect to any specified Person, any other Person
directly or indirectly Controlling or Controlled by or under direct or indirect common Control with such specified Person; provided, however, that in respect of PMC, PMH or Guarantor, the term “Affiliate” shall include only
Guarantor and its wholly owned subsidiaries, and in respect of PLS, the term “Affiliate” shall include only Private National Mortgage Acceptance Company, LLC and its wholly owned subsidiaries. 

“Amendment
 Effective Date” means March 30, 2021. 
 “Ancillary
Income” means all income derived from a Mortgage Loan (other than payments or other collections in respect of principal, interest, escrow payments and prepayment penalties attributable to such Mortgage Loan) and to which the Servicer or any
Subservicer, as the servicer or subservicer of the Mortgage Loan, is entitled in accordance with the Fannie Mae Lender Contract, including, (i) all late charges, fees received with respect to checks or bank drafts returned by the related bank
for insufficient funds, assumption fees, optional insurance administrative fees, all interest, income, or credit on funds deposited in the escrow accounts and custodial accounts or other receipts on or with respect to such Mortgage Loan (subject to
applicable law and the Fannie Mae Lender Contract), (ii) reconveyance fees, subordination fees, speedpay fees, mortgage pay on the web fees, automatic clearing house fees, demand statement fees, modification fees, if any, and other similar
types of fees arising from or in connection with any Mortgage Loan to the extent not otherwise payable by the mortgagor under applicable law or pursuant to the terms of the related Mortgage Note, and (iii) if and to the extent that any FHA
Loans, USDA Loans or VA Loans are Subject Mortgages, any incentive fees payable by FHA under the applicable FHA Mortgage Insurance Contract, by USDA under the USDA Loan Guarantee Document, or by VA under the applicable VA Loan Guaranty Agreement, as
applicable, to the Servicer or any Subservicer, as servicer or subservicer of the Mortgage Loans, including incentive amounts payable in connection with Mortgage Loan modifications and other loss mitigation activities. 

“Applicable Law” has the meaning set forth in Section 4.1 of the Base Indenture. “Applicable Rating”
means, for each Class of Notes, the rating(s) specified as such 
 for such Class in the related Indenture Supplement, if applicable. Only
those rating(s) specified for any Class of Notes that are made at the request of Issuer shall be applicable for purposes of this Base Indenture. 

“Appraised Market Value” means, for any MSR, the appraised market value established in accordance with the Fannie Mae
Servicing Guide. 
 “Asset” means (a) the Participation Certificates and (b) the related MSRs, in each case, sold
or pledged to secure the Obligations under the PC Repurchase Agreement. 
 “Asset Base” means for any date of
determination, the product of (1) the Purchase Price Percentage and (2) the then-current Market Value. 
 “Asset
File” means the documents described in Section 2.2 of the Base Indenture pertaining to a particular Participation Certificate. 

  
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 “Asset Schedule” means a schedule, in the form attached to the PC
Repurchase Agreement, listing as of the date of such schedule the applicable Participation Certificate and the applicable Participation Agreement, as such schedule shall be updated from time to time in accordance with Section 2.02 of the PC
Repurchase Agreement. 
 “Authenticating Agent” means any Person authorized by the Indenture Trustee to authenticate Notes
under Section 11.12 of the Base Indenture. 
 “Authorized Signatory” means, with respect to any entity, each Person
duly authorized to act as a signatory of such entity at the time such Person signs on behalf of such entity. 
 “Available
Funds” means, with respect to: 
 (i) any Interim Payment Date, (A) all Collections on the Participation
Certificates or the Eligible Securities received during the related Collection Period and on deposit in the Collection and Funding Account, plus (B) any other funds of the Issuer that the Issuer (or the Administrator on behalf of the Issuer)
identifies to the Indenture Trustee to be treated as “Available Funds” for such Interim Payment Date (including any cash amounts that are on deposit in the Collection and Funding Account which the Administrator has instructed the Indenture
Trustee to apply in accordance with Section 4.4.(a)(iii) of the Base Indenture); and 
 (ii) any Payment Date,
(A) all Collections on the Participation Certificates or the Eligible Securities received during the related Collection Period and on deposit in the Collection and Funding Account, plus (B) any income from Permitted Investments in Trust
Accounts that have been established for the benefit of all Series of Notes, plus (C) any other funds of the Issuer that the Issuer (or the Administrator on behalf of the Issuer) identifies to the Indenture Trustee to be treated as
“Available Funds” for such Payment Date (including any cash amounts that are on deposit in the Collection and Funding Account which the Administrator has instructed the Indenture Trustee to apply in accordance with
Section 4.5(a)(1)(ix) of the Base Indenture) plus (D) any amounts released from the Series Reserve Account under the Series 2017-VF1 Indenture Supplement. 

“Bankruptcy Code” means the Bankruptcy Reform Act of 1978, 11 U.S.C. §§ 101 et seq. 

“Base Indenture” means the Base Indenture, dated December 20, 2017, among the Issuer, Citibank, N.A., as indenture
trustee, as calculation agent, as paying agent and as securities intermediary, PMC, as Administrator and as Servicer and the Administrative Agent, including the schedules and exhibits thereto. 

“Base Servicing Fee” means, for any Mortgage Loan, a monthly fee not greater than 12.5 basis points of the unpaid principal
balance of the Mortgage Loans. 

  
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 “Base Servicing Fee Rate” means, for the Sold MSR Excess Spread PC, the
“Base Servicing Fee Rate” set forth as such in the Excess Spread Participation Agreement. For the Retained MSR Excess Spread PC, the “Base Servicing Fee Rate” set forth as such in the Retained Excess Spread Participation
Agreement. For any other Participation Certificate, as set forth in the related Participation Agreement. 
 “Benchmark Transition Event” has the meaning set forth in the related Indenture Supplement, if
applicable. 
 “Benefit Plan Investor” has the meaning set
forth in Section 3.9(b) of the Trust Agreement. 
 “Book-Entry Notes” means a note registered in the name of the
Depository or its nominee, ownership of which is reflected on the books of the Depository or on the books of a Person maintaining an account with such Depository (directly or as an indirect participant in accordance with the rules of such
Depository); provided, that after the occurrence of a condition whereupon Definitive Notes are to be issued to Note Owners, such Book-Entry Notes shall no longer be “Book-Entry Notes”. 

“Borrowing Base” means, as of any date of determination, an amount equal to the aggregate Collateral Value (as calculated
using clause (b) of the definition of Market Value Percentage) of the Portfolio. 
 “Borrowing Base Deficiency” means
the positive difference, if any, of: 
  

	 	(i)	 the aggregate VFN Principal Balances of all Outstanding Series of VFNs; and 

 

	 	(ii)	 the sum of: 

(a) the product of: (1) (A) the more recent of the Borrowing Base on the Borrowing Base Determination Date preceding such date of
determination, or the Interim Borrowing Base on the Interim Borrowing Base Determination Date preceding such date of determination minus (B) the aggregate of the Term Note Series Invested Amounts, and (2) the Weighted Average
Advance Rate in respect of all Outstanding Series of VFNs; and 
 (b) the Market Value of any Eligible Securities that have been transferred
and delivered to the Issuer pursuant to the PC Repurchase Agreement prior to the Payment Date or Interim Borrowing Base Payment Date, as applicable; provided, however, that aggregate Market Value of all Eligible Securities and all
Pledged Margin Securities, together, cannot exceed an amount equal to 15% of the Borrowing Base as of such date of determination; provided, further, that any Eligible Security shall only be included for purposes of determining the
Borrowing Base Deficiency for a maximum of three (3) consecutive months; 

  
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 (c) any cash amounts that are on deposit in the Collection and Funding Account that were
deposited by the Administrator prior to the Payment Date or Interim Borrowing Base Payment Date, as applicable, which the Administrator has instructed the Indenture Trustee to reserve in the Collection and Funding Account pursuant to Sections
4.4(a)(iii) and Section 4.5(a)(1)(vii) of the Base Indenture; and 
 (d) the Market Value of any Pledged Margin Securities that have
been pledged to the Issuer pursuant to the PC Repurchase Agreement prior to the Payment Date or Interim Borrowing Base Payment Date, as applicable; provided, however, that aggregate Market Value of all Pledged Margin Securities and all
Eligible Securities, together, cannot exceed an amount equal to 15% of the Borrowing Base as of such date of determination; provided, further, that any Pledged Margin Securities shall only be included for purposes of determining the
Borrowing Base Deficiency for a maximum of three (3) consecutive months. 
 “Borrowing Base Determination Date” means,
with respect to any Payment Date, the Business Day of the month of such Payment Date on which the MSR Valuation Agent performs its Market Value Report based on the information contained in the MSR Monthly Report. 

“Borrowing Capacities” means, for any Outstanding Series of VFNs on any date, the difference between (i) the related
Maximum VFN Principal Balance on such date and (ii) the related VFN Principal Balance on such date. 
 “Business Day”
means, for any Class of Notes, any day other than (i) a Saturday or Sunday or (ii) any other day on which (x) national banking associations or state banking institutions in New York, New York, the State of California, the State of
Texas or the city and state where the Corporate Trust Office is located or (y) the Federal Reserve Bank of New York are authorized or obligated by law, executive order or governmental decree to be closed. 

“Buyer Parties” means any or all of the VFN Repo
BuyerBuyers
, the Administrative Agent, the Indenture Trustee, the Owner Trustee and any other parties acting on behalf of the Issuer. 

“Calculation Agent” means the same Person who serves at any time as the Indenture Trustee, or an Affiliate of such Person, as
calculation agent pursuant to the terms of this Base Indenture. 
 “Capital Lease Obligations” means, for any Person, all
obligations of such Person to pay rent or other amounts under a lease of (or other agreement conveying the right to use) Property to the extent such obligations are required to be classified and accounted for as a capital lease on a balance sheet of
such Person under GAAP, and, for purposes of the PC Repurchase Agreement, the amount of such obligations shall be the capitalized amount thereof, determined in accordance with GAAP. 

“CARES
Act” means the Coronavirus Aid, Relief, and Economic Security Act of 2020. 

  
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 “Cash Equivalents” has the meaning set forth in Section 1 of the PC Repo
Pricing Side Letter. 
 “Certificate of Authentication” means the certificate of the Indenture Trustee or the alternative
certificate of the Authenticating Agent, substantially in the form attached to the Base Indenture in Exhibit D. 
 “Certificate of
Trust” means the Certificate of Trust filed for the Trust on November 22, 2017, pursuant to the Original Trust Agreement and Section 3810(a) of the Statutory Trust Statute. 

“Certificate Register” and “Certificate Registrar” means the register mentioned and the registrar appointed
pursuant to Section 3.3 of the Trust Agreement. 
 “Certificateholder” has the meaning set forth in the Trust
Agreement. 
 “Change in Control” means: 

(A) any transaction or event as a result of which Guarantor ceases to own, beneficially or of record, through one of its
wholly-owned Subsidiaries, more than 50% of the stock of PMC, except with respect to an initial public offering of PMC’s common stock on a U.S. national securities exchange; 

(B) the sale, transfer, or other disposition of all or substantially all of PMC’s assets (excluding any such action taken
in connection with any securitization transaction); or 
 (C) the consummation of a merger or consolidation of PMC with or
into another entity or any other corporate reorganization, if more than 50% of the combined voting power of the continuing or surviving entity’s stock outstanding immediately after such merger, consolidation or such other reorganization is
owned by Persons who were not stockholders of PMC immediately prior to such merger, consolidation or other reorganization. 

“Citibank” means Citibank, N.A. and any successor or assign thereto. 

“Class” means, with respect to any Notes, the class designation assigned to such Note in the related Indenture Supplement. A
Series issued in one class, with no class designation in the related Indenture Supplement, may be referred to herein as a “Class”. 

“Class Invested Amount” means, as of any date of determination: 

(i) for any Class of a Series of Variable Funding Notes, an amount equal to: (i) the sum of (A) the outstanding Note
Balance of such Class (as reduced by (1) the Scheduled Principal Payment Amount actually paid on such Class on such Payment Date, if applicable, and (2) the Early Amortization Event Payment Amount actually paid on such Class on such
Payment Date, if applicable), plus (B) the aggregate outstanding Note 

  
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Balances of all Classes of Variable Funding Notes within the same Series of Variable Funding Notes that are senior to or pari passu with such Class on such date (as reduced by (1) the
Scheduled Principal Payment Amounts actually paid on such Classes on such Payment Date, if applicable, and (2) the Early Amortization Event Payment Amounts actually paid on such Classes on such Payment Date, if applicable) and not otherwise
captured in clause (A), divided by (ii) the Advance Rate in respect of such Class of Variable Funding Notes; and 

(ii) for any Class of a Series of Term Notes, an amount equal to: (i) the sum of (A) the outstanding the Note Balance
of such Class (as reduced by (1) the Scheduled Principal Payment Amount actually paid on such Class on such Payment Date, if applicable, and (2) the Early Amortization Event Payment Amount actually paid on such Class on such Payment Date,
if applicable), plus (B) the aggregate outstanding Note Balances of all Classes of Term Notes within the same Series of Term Notes that are senior to or pari passu with such Class on such date (as reduced by (1) the Scheduled
Principal Payment Amounts actually paid on such Classes on such Payment Date, if applicable, and (2) the Early Amortization Event Payment Amounts actually paid on such Classes on such Payment Date, if applicable) and not otherwise captured in
clause (A), divided by (ii) the highest Advance Rate in respect of such Class of Term Notes. 
 “Clearing
Corporation” has the meaning set forth in Section 8-102(a)(5) of the UCC. 
 “Clearstream” means Clearstream
Banking, S.A., and any successor thereto. “Closing Date” means December 20, 2017. 
 “Code” means the
Internal Revenue Code of 1986. 
 “Collateral” has the meaning set forth in the Granting Clause of the Base Indenture. 

“Collateral Value” means, as of the applicable Determination Date, (A) the difference between (i) the product of (A) the related Market Value Percentage and
(B) the aggregate unpaid principal balance of the Mortgage Loans and (ii) the Stop-Loss Cap. 
 “Collection and
Funding Account” means the non-interest bearing trust account or accounts, each of which shall be an Eligible Account, established and maintained pursuant to Sections 4.1 and 4.7 of the Base Indenture and entitled “Citibank, N.A., as
Indenture Trustee for the PMT ISSUER TRUST—FMSR Collateralized Notes, Collection and Funding Account” or such of the foregoing that can be reflected on the account systems of the institution maintaining such account. 

“Collection Period” means, (i) for the first Interim Payment Date or Payment Date, the period beginning on the Cut-off
Date and ending at the end of the day before the Determination Date for such Interim Payment Date or Payment Date, and (ii) for each subsequent Interim Payment Date or Payment Date, the period beginning at the opening of business on the most
recent preceding Determination Date and ending as of the close of business on the day before the Determination Date for such Interim Payment Date or Payment Date. 

  
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 “Collection Policy” means PMC’s policies regarding Collections and
remittance in accordance with the provisions of the PC Repurchase Agreement and the Servicing Contracts and shall include the charging and collection of fees for servicing functions, including, without limitation, the charging of late fees,
assumption fees, modification fees and other clerical or administrative fees in the ordinary course of servicing. 

“Collections” means (i) any amounts received by PMC relating to the Participation Certificates, including, any amounts
received by PMC and payable to the Issuer under the PC Repurchase Agreement, the PC Repo Guaranty, the PMH Repurchase Agreement or the PMH Repo Guaranty and (ii) any amounts received by the Indenture Trustee relating to the Eligible Securities;
provided, however, that Collections shall not include amounts related to the Base Servicing Fee, Ancillary Income or the Advance Reimbursement Amounts. 

“Commitment Period” means the period from and including the Closing Date to but not including the Termination Date or such
earlier date on which the obligations of the Issuer, as Repo Buyer, under the PC Repurchase Agreement shall have terminated pursuant to the terms thereof. 

“Confidential Information” has the meaning set forth in Section 10.10(b) of the PC Repurchase Agreement. 

“Consideration” means, (a) in the context of delivery thereof by the Issuer, as Repo Buyer, any or all of (i) the
Owner Trust Certificate, including increases in the value thereof pursuant to Sections 4.4(b) or 4.5(e) of the Base Indenture, (ii) one or more Variable Funding Notes and (iii) cash, and (b) in the context of delivery thereof by PMC,
as Repo Seller, in satisfaction of a Margin Deficit, any or all of (i) a reduction in the value of the Owner Trust Certificate pursuant to the terms of the PC Repurchase Agreement and (ii) any Margin Call Payment. 

“Control,” “Controlling” or “Controlled” means possession of the power to direct or cause
the direction of the management or policies of a Person through the right to exercise voting power or by contract, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise. 

“Corporate Trust Office” means, for each Series of Notes, as specified in the related Indenture Supplement. 

“CSFB” has the meaning set forth in the Preamble of the Base Indenture. 

“Cumulative Default Supplemental Fee Shortfall Amount” means, for each Payment Date and each Class of Notes, any portion of
the Default Supplemental Fee (including the Cumulative Default Supplemental Fee Shortfall Amount for that Class for a previous Payment Date as set forth in the definition of “Default Supplemental Fee”) that has not been paid, if any, plus
accrued and unpaid interest at the applicable Note Interest Rate plus the Default Supplemental Fee Rate on such shortfall from the Payment Date on which the shortfall first occurred through but excluding the current Payment Date. 

  
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 “Cumulative Interest Shortfall Amount” means, for each Payment Date and
each Class of Notes, equal to any portion of the Interest Payment Amount (calculated pursuant to the provisions of the Base Indenture) for that Class for all previous Payment Dates that has not been paid, if any, plus accrued and unpaid interest at
the applicable Note Interest Rate plus the Cumulative Interest Shortfall Amount Rate on each such shortfall from the Payment Date on which such shortfall first occurred to but excluding the current Payment Date. 

“Cumulative Interest Shortfall Amount Rate” has the meaning set forth in the related Indenture Supplement. 

“Cumulative Step-Up Fee Shortfall Amount” means, for each Payment Date and each Class of Notes, any portion of the Step-Up
Fee (including the Cumulative Step-Up Fee Shortfall Amount for that Class for a previous Payment Date as set forth in the definition of “Step-Up Fee”) that has not been paid, plus accrued and unpaid interest at the applicable Note Interest
Rate and plus the Step-Up Fee Rate on such shortfall from the Payment Date on which the shortfall first occurred through the current Payment Date. 

“Current Amounts Due” means the sum of: (A) all reasonable internal costs and actual expenses related to the following
actions (if taken): (1) the determination of the Appraised Market Value; (2) stabilizing the servicing of the Subject Mortgages; (3) the sale and transfer of the Servicing Rights; and (4) any action brought by Fannie Mae before a
court of its choice for leave to interplead any Distributable Funds; and (B) all actual amounts due under the Fannie Mae Lender Contract to Fannie Mae on the Servicer’s Fannie Mae Portfolio because of any of the following up to and
including the date Fannie Mae terminates the Servicing Rights: (1) any breach of selling representations, warranties or covenants made or assumed by the Servicer; (2) any breach of any servicing obligations by the Servicer; (3) any
actual unperformed obligations under the regular servicing option or other recourse agreements; and (4) any other obligations the Servicer currently owes to Fannie Mae. If the Subject Mortgages make up less than the Servicer’s Fannie Mae
Portfolio, the costs and expenses referred to in clause (A) above include all sums related to the Servicer’s Fannie Mae Portfolio through the end of the 24-month period following the date, if any, Fannie Mae terminates the Servicing
Rights. 
 “Custodian” has the meaning set forth in Section 2.3 of the Base Indenture. “Cut-off Date”
means the Closing Date. 
 “Dedicated Account” means the demand deposit account PennyMac Loan Services, LLC on behalf of
PennyMac Corp., in trust for PMT ISSUER TRUST—FMSR –Dedicated Account, which account has been established by PLS, PMC, the Indenture Trustee, as secured party, the Issuer, the Guarantor and the Account Bank for the benefit of the Indenture
Trustee at the Account Bank. 

  
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 “Dedicated Account Control Agreement” means, the Deposit Account Control
Agreement, dated as of December 20, 2017, among PMC, the Issuer, the Indenture Trustee, PLS, the Guarantor and the Account Bank, pursuant to which to the Dedicated Account is established. 

“Dedicated Account Pledge Agreement” means, the Dedicated Account Pledge Agreement, dated as of December 20, 2017, by
PLS in favor of Issuer. 
 “Default” means an event, condition or default that, with the giving of notice, the passage of
time, or both, would constitute an Event of Default. 
 “Default Period” means the period of time that begins upon the
occurrence of an Event of Default and ends on the earlier to occur of (i) the date on which the Event of Default has been waived or cured pursuant to the terms of the Base Indenture or (ii) the date on which all Classes or Series of Notes
not waiving such Event of Default are paid or redeemed in full in accordance with the terms of the Base Indenture. 
 “Default
Supplemental Fee” has the meaning set forth in the related Indenture Supplement, if applicable. 
 “Default Supplemental
Fee Rate” has the meaning set forth in the related Indenture Supplement, if applicable. 
 “Definitive Note” means
a Note issued in definitive, fully registered form evidenced by a physical Note, substantially in the form of one or more of the Definitive Notes attached as Exhibit A-2 and Exhibit A-4 to the Base Indenture. 

“Depository” means initially, The Depository Trust Company, the nominee of which is Cede & Co., and any permitted
successor depository. The Depository shall at all times be a Clearing Corporation. 
 “Depository Agreement” means, for any
Series or Class of Book-Entry Notes, the agreement among the Issuer, the Indenture Trustee and the Depository, dated as of the related Issuance Date, relating to such Notes. 

“Depository Participant” means a broker, dealer, bank or other financial institution or other Person for whom from time to
time the Depository effects book-entry transfers and pledges of securities deposited with the Depository. 
 “Designated Transaction Representative” has the meaning set forth in the related Indenture Supplement, if
applicable. 
 “Determination Date” means, in respect of any
Payment Date or Interim Payment Date, three (3) Business Days before such Payment Date or Interim Payment Date. 

“Determination Date Report” means a report delivered by the Administrator as described in Section 3.2(a) of the Base
Indenture, which shall be delivered in the form of one or more electronic files. 

  
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 “Disposition Management Agreement” means the Disposition Management
Agreement, dated as of April 25, 2018, by and among the Disposition Manager, the Indenture Trustee, PMC and the Administrative Agent. 

“Disposition Manager” means Pentalpha Surveillance LLC. 

“Disposition Manager Fee” shall have the meaning set forth in the Disposition Management Agreement. 

“Distributable Funds” means any Net Proceeds available for distribution. “Distribution Compliance Period”
means, in respect of any Regulation S Global 
 Note or Regulation S Definitive Note, the forty (40) consecutive days beginning on and
including the later of (a) the day on which any Notes represented thereby are offered to persons other than distributors (as defined in Regulation S under the 1933 Act) pursuant to Regulation S and (b) the Issuance Date for such Notes.

 “Dollars” and “$” means dollars in lawful currency of the United States of America.
“DTC” has the meaning set forth in Section 5.4(a) of the Base Indenture. 
 “Early Amortization
Event” means the occurrence of any of the following events: 
 (i) the unpaid principal balance of the Portfolio is less than
$20,000,000,000; 
 (ii) the Servicer SDQ Rate exceeds 6.00%; 

(iii) the Market Value of a base fee equal to 12.5 basis points, inclusive of Ancillary Income and servicing costs, is less than $45,000,000;

 (iv) claims by Fannie Mae relating to breaches of representations and warranties for the underlying Mortgage Loans that remain unresolved
following sixty (60) days from the date the related cure and rebuttal periods permitted under the Fannie Mae Guide have been exhausted, and the related compensatory fees and principal balance of mortgage loans for such unresolved claims exceed
0.025% of the unpaid principal balance of the underlying Mortgage Loans as of the end of any calendar month; provided, however that once PMC and Fannie Mae have agreed to an indemnification such indemnification shall be deemed to be a
resolved claim and therefore not part of the foregoing calculation; or 
 (v) notice by Fannie Mae of a material breach by the Servicer of
the Fannie Mae Lender Contract which remains uncured for ninety (90) days. 
 “Early Amortization Event Payment
Amount” has the meaning set forth in the related Indenture Supplement. 

  
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 “Early Amortization Period” means, for all Series of Notes, the period that
begins upon the occurrence of an Early Amortization Event and ends on the date when the Early Amortization Event is no longer in effect, pursuant to the requirements set forth in Section 4.12 of the Base Indenture. 

“Eligible Account” means an account or accounts maintained with an insured depository institution that meets the rating
requirements adopted by Fannie Mae and set forth in the Fannie Mae Lender Contract. 
 “Eligible Asset” means any Asset:

 (a) which relates to a Servicing Contract for Mortgage Loans in an Eligible Securitization Transaction in which the PMC is acting in the
capacity of servicer; 
 (b) which complies with all Applicable Laws and other legal requirements, whether federal, state or local; 

(c) which provides for payment in Dollars; 

(d) which was not originated in or subject to the Laws of a jurisdiction whose Laws would make such Asset, or the financing thereof
contemplated by the PC Repurchase Agreement unlawful, invalid or unenforceable and is not subject to any legal limitation on transfer; 
 (e)
which is owned solely by PMC (or with respect to the Sold MSR Excess Spread, PMH) subject to the relevant Servicing Contract free and clear of all Liens other than Liens in favor of the Issuer, as Repo Buyer (and in the case of Sold MSR Excess
Spread, Liens in favor of PMC) and has not been sold, conveyed, pledged or assigned to any other lender, purchaser or Person; 
 (f) in
respect of which Asset Seller has complied in all material respects with the Collection Policy and the related Servicing Contract or Participation Agreement, as applicable; 

(g) which is not an obligation of the United States of America, any State or any agency or instrumentality or political subdivision thereof
(other than Fannie Mae); 
 (h) in respect of which the information set forth in the Asset Schedule and the related Servicing Contract and,
with respect to the Participation Certificates, the Participation Agreement, is true and correct in all material respects; 
 (i) in respect
of which PMC has obtained from each Person that may have an interest in such Asset all acknowledgments or approvals, if any, that are necessary to pledge such Asset as contemplated by the PC Repurchase Agreement; 

  
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 (j) (i) which complies with the representations and warranties set forth on Schedules
1-A and 1-B of the PC Repurchase Agreement, (ii) with respect to Eligible Securities complies with the representations and warranties to be agreed upon by the Repo Buyer, the Administrative Agent and the Repo Seller and to be set forth on
Schedule 1-C to the PC Repurchase Agreement and (iii) with respect to Pledged Margin Securities, complies with the representations and warranties to be agreed upon by the Repo Buyer, the Administrative Agent and the Repo Seller and to be set
forth on Schedule 1-D to the PC Repurchase Agreement; 
 (k) which with respect to any Asset that constitutes MSRs: 

(i) constitutes an “account” or a “general intangible” as defined in the Uniform Commercial Code and is not
evidenced by an “instrument,” as defined in the Uniform Commercial Code as so in effect; 
 (ii) relates to an
Eligible Securitization Transaction, where the related Participation Certificate is sold to the Issuer, as Repo Buyer, under the PC Repurchase Agreement; 

(iii) arose pursuant to a Servicing Contract that is in full force and effect and under which the Servicer has not been
terminated; and 
 (iv) the related Participation Certificate is an Eligible Asset the PC Repurchase Agreement; and 

(l) which with respect to any Asset that constitutes a Participation Certificate: 

(i) is intended to constitute a “security” as defined in the Uniform Commercial Code and is evidenced by a
certificate; 
 (ii) for which the related MSRs relate to an Eligible Securitization Transaction and have been pledged to the
Issuer, as Repo Buyer, under the PC Repurchase Agreement; 
 (iii) for which the Participation Certificate arose pursuant to
a Participation Agreement that is in full force and effect; and 
 (iv) for which the related MSRs are an Eligible Asset
under the PC Repurchase Agreement; 
 in each case as of the related Purchase Date and as of each day that such Asset shall be subject to a Transaction
under the PC Repurchase Agreement. 
 “Eligible Securities Account” means the non-interest bearing trust account or
accounts, each of which shall be an Eligible Account, established and maintained pursuant to Sections 4.1 and 4.7 of the Base Indenture and entitled “Citibank, N.A., as Indenture Trustee for the PMT ISSUER TRUST—FMSR Collateralized Notes,
Eligible Securities Account” or such of the foregoing that can be reflected on the account systems of the institution maintaining such account. 

  
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 “Eligible Security” means any of the following obligations and securities:
(i) (a) direct obligations of, or obligations fully guaranteed as to timely payment of principal and interest by, the United States or (b) direct obligations of, or obligations fully guaranteed as to timely payment of principal and
interest by, any agency or instrumentality of the United States, provided that such obligations are backed by the full faith and credit of the United States; or (ii) mortgage backed securities issued or guaranteed by Fannie Mae, Freddie
Mac or Ginnie Mae, each of which shall be listed on Schedule 3 of the Base Indenture, which schedule may be maintained in electronic form. 

“Eligible Securitization Transaction” means any Fannie Mae MBS which, as of the date of the related Transaction and as of
each day that any Asset shall be subject to a Transaction under the PC Repurchase Agreement (unless expressly agreed upon in writing by the Issuer, as Repo Buyer, to the contrary) with respect to which the related Servicing Contract and is in full force and
effect, at any time any Asset related to such Servicing Contract is subject to a Transaction, and
under which the servicer has not been terminated, resigned or become subject to a right of termination or other “trigger event.” 

“Eligible Servicer” means an approved Fannie Mae servicer that Fannie Mae determines in Fannie Mae’s reasonable
discretion, (a) is able to service the Subject Mortgages in light of the needs and characteristics of the Subject Mortgages, (b) is able to perform all of its existing servicing obligations, and (c) is in compliance with the Fannie
Mae Lender Contract. 
 “Eligible Subservicer” means an established mortgage servicer that (A)(i) has been a Fannie Mae
approved issuer for at least two (2) years, (ii) services mortgage loans with an aggregate unpaid principal balance greater than or equal to $30,000,000,000 and (iii) has a servicer rating of at least “Average” by S&P,
“SQ3” by Moody’s or “RPS3” by Fitch, and (B) is party to an Eligible Servicing Agreement. PLS is initially approved by the Issuer, as Repo Buyer, as an Eligible Subservicer, assuming continuing compliance with the
requirements of clause (A) above. 
 “Eligible Subservicing Agreement” means a subservicing agreement
(i) that has been approved in writing by Repo Buyer under the PC Repurchase Agreement, (ii) the subservicer of which is an Eligible Subservicer, and (iii) that has not been assigned or amended in any respect that is materially adverse
to Noteholders with respect to the remittance of servicing fees or advance reimbursements without the prior written consent of Repo Buyer under the PC Repurchase Agreement. The PLS Subservicing Agreement and the Subservicer Side Letter Agreement,
together, are initially approved by the Repo Buyer under the PC Repurchase Agreement as an Eligible Subservicing Agreement, assuming continuing compliance with the requirements of clauses (ii) and (iii) above. 

“EO13224” has the meaning set forth in Section 3.18 of the PC Repurchase Agreement. 

“Entitlement Order” has the meaning set forth in Section 8-102(a)(8) of the UCC. “ERISA” means the
Employee Retirement Income Security Act of 1974. 
 “ERISA Affiliate” means any corporation or trade or business that,
together with PMC or the Guarantor is treated as a single employer under section 414(b) or (c) of the Code or solely for purposes of section 302 of ERISA and section 412 of the Code is treated as single employer described in section 414 of the
Code. 

  
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 “Euroclear” means Euroclear Bank S.A./N.V. as operator of the Euroclear
System, and any successor thereto. 
 “Event of Default” means (i) with respect to the Base Indenture, the meaning set
forth in Section 8.1 of the Base Indenture and (ii) with respect to the PC Repurchase Agreement, the meaning set forth in Section 7.01 of the PC Repurchase Agreement. 

“Excess Spread” means, for the Sold MSR Excess Spread PC, “Sold MSR Excess Spread” as defined in the Excess Spread
Participation Agreement. For the Retained MSR Excess Spread PC, “Retained MSR Excess Spread” as set forth in the Retained Excess Spread Participation Agreement. For any other Participation Certificate, as set forth in the related
Participation Agreement. 
 “Excess Spread Participation Agreement” means the Third Amended and Restated Master Spread
Acquisition and MSR Servicing Agreement, dated as of December 20, 2017, between PMC, as seller, and PMH, as purchaser. 

“Excess Spread Rate” means, for the Sold MSR Excess Spread PC, the rate per annum set forth as such in
Section 1.01 of the Excess Spread Participation Agreement. For the Retained MSR Excess Spread PC, the rate per annum set forth as such in Section 1 of the Retained Excess Spread Participation Agreement. For any other Participation
Certificate, as set forth in the related Participation Agreement. 
 “Expense Limit” means, with respect to: (i) expenses and
indemnification amounts (A) in any year, for the Owner
Trustee, the Indenture Trustee (in all its capacities) and the MSR Valuation Agent, $200,000 (with $150,000 being reserved for the Indenture Trustee), and (B) for any single Payment Date, for the Indenture Trustee only (in all its capacities)
$50,000; and (ii) Administrative Expenses, in any year, $50,000; provided, that the Expense Limit shall only apply to payments made pursuant to Sections 4.5(a)(1)(i) and (ii) of the Base Indenture; and
provided, further, that any amounts in excess of the Expense Limit that have not
been paid pursuant to Section 4.5 of the Base Indenture may be applied toward and subject to the Expense Limit for the subsequent year and may be paid in a subsequent year. 

“Expense Reserve Account” means the segregated non-interest bearing trust account or accounts, each of which shall be an
Eligible Account, established and maintained pursuant to Sections 4.1 and 4.6 of the Base Indenture, and entitled “Citibank, N.A., as Indenture Trustee for the PMT ISSUER TRUST—FMSR Collateralized Notes, Expense Reserve Account”. 

“Expense Reserve Required Amount” means, with respect to any date of determination, $200,000 (with $150,000 being reserved
for the Indenture Trustee). 

  
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 “Expenses” means all present and future expenses reasonably incurred by or
on behalf of the Issuer, as Repo Buyer, in connection with the negotiation, execution or enforcement or the ongoing operations relating to the PC Repurchase Agreement, the Indenture or, any of the other Program Agreements and PMH Documents, andthe Participation Agreements, and any amendment, supplement or other
modification or waiver related thereto, whether incurred prior to or after the Closing Date, which expenses shall include any trustee or other service provider fees, indemnification payments, MSR transfer costs, the cost of title, lien, judgment and
other record searches, reasonable attorneys’ fees, any ongoing audits or due diligence costs in connection with valuation, entering into Transactions or determining whether a Margin Deficit may exist, and costs of preparing and recording any
UCC financing statements or other filings necessary to perfect the security interest created by the PC Repurchase Agreement. 

“Facility Entity” has the meaning set forth in Section 9.5(i) of the Base Indenture. “Fannie Mae” means
the Federal National Mortgage Association and any successor thereto. 
 “Fannie Mae Approvals” shall have the meaning set
forth in Section 6.10 of the PC 
 Repurchase Agreement. 

“Fannie Mae Eligibility Requirements” has the meaning set forth in Section 3.2(b)(xii) of the Base Indenture. 

“Fannie Mae Guide” means the Fannie Mae Selling Guide and the Fannie Mae Servicing Guide. 

“Fannie Mae Lender Contract” means collectively, the Mortgage Selling and Servicing Contract and all applicable Pool Purchase
Contracts between Fannie Mae and the Servicer, the Fannie Mae Selling Guide, the Fannie Mae Servicing Guide and all supplemental servicing instructions or directives provided by Fannie Mae, all applicable master agreements, recourse agreements,
repurchase agreements, indemnification agreements, loss-sharing agreements, and any other agreements between Fannie Mae and the Servicer. 

“Fannie Mae MBS” means an MBS issued by Fannie Mae, the issuance of which, and the servicing of such Fannie Mae eligible
mortgage loans by PMC, being governed in all respects by the Fannie Mae Lender Contract, including such Fannie Mae eligible mortgage loans for which (i) PMC has submitted a fully completed Request for Approval for Transfer and consummated a
purchase and sale transaction with an eligible Fannie Mae approved issuer to acquire MSRs, (ii) Fannie Mae has approved and consented to such acquisition of MSRs by PMC by delivering a consent notice to PMC in accordance with Chapter A2-7-3 of
the Fannie Mae Servicing Guide, and (iii) PMC has started servicing the related MSRs and collecting payments from the borrowers. 

“Fannie Mae Requirements” includes the Fannie Mae Lender Contract (whether specific to PMC or of general application), in
addition to the contracts (including any related guaranty agreement, master servicing agreement, master agreement for servicer’s principal and interest custodial account, master agreement for servicer’s escrow custodial account, master
custodial agreement, schedule of subscribers and any other agreement or arrangement), and all 

  
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applicable rules, regulations, communications, memoranda and other written directives, procedures, manuals, guidelines, including the Fannie Mae Eligibility Requirements, and any other
information or material incorporated therein, defining the rights and obligations of Fannie Mae and Servicer, with respect to the Mortgage Loans. 

“Fannie Mae Selling Guide” means the Fannie Mae Single Family Selling Guide. “Fannie Mae Servicing Guide”
means, the Fannie Mae Single Family Servicing Guide. 
 “FATCA” means sections 1471 through 1474 of the Code, any current
or future regulations or official interpretations thereof, any agreement entered into pursuant to section 1471(b) of the Code, or any U.S. or non-U.S. fiscal or regulatory legislation, guidance notes, rules or practices adopted pursuant to any
intergovernmental agreement entered into in connection with the implementation of such sections of the Code. 
 “FCPA” has
the meaning set forth in Section 10.1(h) of the Base Indenture. “FCPA Entity” or “FCPA Entities” has the meaning set forth in Section 10.1(h) of the Base Indenture. 

“FDIA” has the meaning set forth in Section 10.12(c) of the PC Repurchase Agreement. 

“FDICIA” has the meaning set forth in Section 10.12(d) of the PC Repurchase Agreement. 

“Fee Letter” means, for any Series, as defined in the related Indenture Supplement, if applicable. 

“Fees” means, collectively, with respect to any Interest Accrual Period, the Indenture Trustee Fee, the Owner Trustee Fee,
the Disposition Manager Fee and the MSR Valuation Agent Fee. 
 “FHA” means the Federal Housing Administration, an agency
within HUD, or any successor thereto, and including the Federal Housing Commissioner and the Secretary of HUD where appropriate under the FHA Regulations. 

“FHA Loan” means a Mortgage Loan which is the subject of an FHA Mortgage Insurance Contract. 

“FHA Mortgage Insurance Contract” means the contractual obligation of the FHA respecting the insurance of a Mortgage Loan.

 “FHA Regulations” means the regulations promulgated by the Department of HUD under the National Housing Act, as amended
from time to time and codified in 24 Code of Federal Regulations, and other HUD issuances relating to FHA Loans, including the related handbooks, circulars, notices and mortgagee letters. 

  
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 “Fidelity Insurance” means insurance coverage with respect to employee
errors, omissions, dishonesty, forgery, theft, disappearance and destruction, robbery and safe burglary, property (other than money and securities) and computer fraud in an aggregate amount acceptable to PMC’s regulators. 

“Final Payment Date” means, for any Class of Notes, the earliest of (i) the Stated Maturity Date for such Class,
(ii) after the end of the related Revolving Period, the Payment Date on which the Note Balance of the Notes of such Class has been reduced to zero, and (iii) the Payment Date which follows the Payment Date on which all proceeds of the sale
of the Trust Estate are distributed pursuant to Section 8.6 of the Base Indenture. 
 “Financial Asset” has the meaning
set forth in Section 8-102(a)(9) of the UCC. “Financial Statements” means the consolidated financial statements of the 

Guarantor and PMC prepared in accordance with GAAP for the year or other period then ended. 

“Fitch” means Fitch Ratings, Inc., or any successor thereto. 

“Forbearance
 Loan” means any Mortgage Loan (i) for which the borrower has requested forbearance pursuant to §4022 of the CARES Act, (ii) for which one or more regular monthly payments have not been made, and (iii) which is still in the
Forbearance Period (i.e., the Mortgage Loan has not been reinstated or resolved). 

“Forbearance
 Period” means the period of time during which the Forbearance Loan has not been reinstated as a result of (i) Servicer receiving the borrower’s full monthly contractual payments previously past due, (ii) Servicer confirming that
the borrower (a) has resolved the hardship, (b) is able to continue making the full monthly contractual payment, and (c) is able to reinstate such Forbearance Loan; (iii) the borrower completing a trial period plan related to the
Forbearance Loan or otherwise resolving the Forbearance Loan in accordance with the Fannie Mae Guide; (iv) the borrower completing a permitted workout option (i.e., flex modification, short sale, or deed-in-lieu of foreclosure), or (v) the
borrower paying in full the Forbearance Loan. 
 “Full Amortization
Period” means, for all Series of Notes, the period that begins upon the commencement of the Full Amortization Period pursuant to Section 4.12 of the Base Indenture and ends on the date on which the Notes of all Series are paid or
redeemed in full. 
 “Funding Amount” means the amount of a funding proposed to be released or drawn on a VFN on any
Funding Date, that does not cause a Borrowing Base Deficiency. 
 “Funding Certification” means a report delivered by the
Administrator in respect of each Funding Date pursuant to Section 4.3(a) of the Base Indenture. 
 “Funding
Conditions” means, with respect to any proposed Funding Date, the following conditions: 
 (i) no Borrowing Base
Deficiency shall exist following the proposed funding (without giving effect to the Market Value of any Eligible Securities or cash amounts on deposit in the Collection and Funding Account), and the Administrative Agent shall be satisfied in its
sole discretion that it has a current accurate valuation of the Portfolio to support such determination; 

  
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 (ii) no breach of representation, warranty or covenant of the Servicer, the
Administrator or the Issuer, or with respect to the Participation Certificates, under the Base Indenture or under any Transaction Document, which could reasonably be expected to have a material Adverse Effect, shall exist; 

(iii) solely with respect to any Funding Date which will be a VFN Draw Date, (A)(unless (and to the extent) each related VFN
Noteholder and VFN Funding Source has agreed to waive this condition for purposes of fundings under its related Variable Funding Note), no Funding Interruption Event shall be continuing and (B) (unless (and to the extent) each related VFN
Noteholder and VFN Funding Source have agreed to waive this condition for purposes of fundings under its related Variable Funding Note), no Event of Default shall have occurred and be continuing; 

(iv) the Administrator shall have provided the Indenture Trustee, no later than 10:00 a.m. New York City time on the Business
Day preceding such Funding Date (or such other time as may be agreed to from time to time by the Administrator, the Indenture Trustee and the Administrative Agent), a Determination Date Report reporting information with respect to the Participation
Certificates in the Trust Estate and demonstrating the satisfaction of the Borrowing Base, and no later than 10:00 a.m. New York City time on such Funding Date, a Funding Certification certifying that all Funding Conditions have been satisfied;
provided, however, that no Variable Funding Note Noteholder shall have any liability for failing to fund a requested draw of a Variable Funding Note unless it has received a Funding Certification by 1:00 p.m. New York City time on the
Business Day preceding such Funding Date; 
 (v) the full amount of the Required Available Funds shall be on deposit in the
Collection and Funding Account, before and after the release of cash from such account to fund the purchase price of Participation Certificates (if any Participation Certificate is being purchased on such Funding Date); 

(vi) the payment of the Funding Amount or the drawing on any VFNs shall not result in a material adverse United States federal
income tax consequence to the Trust Estate or any Noteholders; and 
 (vii) the Full Amortization Period shall not be in
effect. 
 “Funding Date” means any Payment Date or any Interim Payment Date with respect to which the Administrator shall
have delivered (i) a Funding Certification in accordance with Section 4.3(a) of the Base Indenture or (ii) a VFN Note Balance Adjustment Request in accordance with Section 4.3(b) of the Base Indenture; provided, no Full
Amortization Period shall have occurred and shall be continuing on such Payment Date or Interim Payment Date. 

  
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 “Funding Interruption Event” means the occurrence of an event which with
the giving of notice or the passage of time, or both, would constitute an Event of Default, whether or not the Indenture Trustee, the Administrative Agent and/or any Noteholders have provided notice sufficient to cause the Full Amortization Period
to commence as a result of such event. 
 “GAAP” means U.S. generally accepted accounting principles that are
(i) consistent with the principles promulgated or adopted by the Financial Accounting Standards Board and its successors, as in effect from time to time, and (ii) applied consistently with principles applied to past financial statements of
PMC and its subsidiaries; provided, that a certified public accountant would, insofar as the use of such accounting principles is pertinent, be in a position to deliver an unqualified opinion (other than a qualification regarding changes in
generally accepted accounting principles) that such principles have been properly applied in preparing such financial statements. 

“Ginnie Mae” means the Government National Mortgage Association and any successor thereto. 

“GLB Act” shall have the meaning set forth in Section 10.10(b) of the PC Repurchase Agreement. 

“Global Note” means a Note issued in global form and deposited with or on behalf of the Depository, substantially in the form
of one or more of the Global Notes attached as Exhibit A-1 and Exhibit A-3 to the Base Indenture. 
 “Governmental
Authority” means any nation or government, any state or other political subdivision thereof, or any entity exercising executive, legislative, judicial, regulatory or administrative functions over PMC, PMH, the Guarantor or the Issuer, as
Repo Buyer, as applicable. 
 “Grant,” “Granting” or “Granted” means pledge, bargain,
sell, warrant, alienate, remise, release, convey, assign, transfer, create and grant a lien upon and a security interest in and right of set-off against, deposit, set over and confirm pursuant to this Base Indenture. A Grant of collateral or of any
other agreement or instrument shall include all rights, powers and options (but none of the obligations) of the granting party thereunder, including the immediate and continuing right to claim for, collect, receive and give receipt for principal and
interest payments in respect of such collateral or other agreement or instrument and all other moneys payable thereunder, to give and receive notices and other communications, to make waivers or other agreements, to exercise all rights and options,
to bring proceedings in the name of the granting party or otherwise, and generally to do and receive anything that the granting party is or may be entitled to do or receive thereunder or with respect thereto. 

“Gross Proceeds” means the amount accepted by Fannie Mae for the New Servicing Rights plus any termination fees due to the
Servicer under the Fannie Mae Lender Contract. 

  
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 “Guarantee” means, as to any Person, any obligation of such Person directly
or indirectly guaranteeing any Indebtedness of any other Person or in any manner providing for the payment of any Indebtedness of any other Person or otherwise protecting the holder of such Indebtedness against loss (whether by virtue of partnership
arrangements, by agreement to keep-well, to purchase assets, goods, securities or services, or to take-or-pay or otherwise); provided that the term “Guarantee” shall not include (i) endorsements for collection or deposit
in the ordinary course of business, or (ii) obligations to make servicing advances for delinquent taxes and insurance or other obligations in respect of a mortgaged property. The amount of any Guarantee of a Person shall be deemed to be an
amount equal to the stated or determinable amount of the primary obligation in respect of which such Guarantee is made or, if not stated or determinable, the maximum reasonably anticipated liability in respect thereof as determined by such Person in
good faith. The terms “Guarantee” and “Guaranteed” used as verbs shall have correlative meanings. 

“Guarantor” means PennyMac Mortgage Investment Trust, in its capacity as guarantor under the PC Repo Guaranty and the PMH
Repo Guaranty. 
 “Hedging Instrument” means, for each Series of Notes, as specified in the related Indenture Supplement.

 “HUD” means the United States Department of Housing and Urban Development or any successor thereto. 

“Indemnified Party” means, for purposes of the Base Indenture, as set forth in Section 10.4 thereof, and for purposes of
the Trust Agreement, as set forth in Section 8.2 thereof. 
 “Indebtedness” means, for any Person:
(a) obligations created, issued or incurred by such Person for borrowed money (whether by loan, the issuance and sale of debt securities or the sale of Property to another Person subject to an understanding or agreement, contingent or
otherwise, to repurchase such Property from such Person); (b) obligations of such Person to pay the deferred purchase or acquisition price of Property or services, other than trade accounts payable (other than for borrowed money) arising, and
accrued expenses incurred, in the ordinary course of business, so long as such trade accounts payable are payable within ninety (90) days of the date the respective goods are delivered or the respective services are rendered;
(c) Indebtedness (as defined in clauses (a) or (b)) of others secured by a Lien on the Property of such Person, whether or not the respective Indebtedness so secured has been assumed by such Person; (d) obligations (contingent or
otherwise) of such Person in respect of letters of credit or similar instruments issued or accepted by banks and other financial institutions for the account of such Person; (e) Capital Lease Obligations of such Person; (f) obligations of
such Person under repurchase agreements, sale/buy-back agreements or like arrangements, including, without limitation, any Indebtedness arising under the PC Repurchase Agreement; (g) Indebtedness (as defined in clauses (a) or (b)) of
others Guaranteed by such Person; (h) all obligations of such Person incurred in connection with the acquisition or carrying of fixed assets by such Person; (i) Indebtedness (as defined in clauses (a) or (b)) of general partnerships of
which such Person is a general partner and (j) with respect to clauses (a)-(i) above both on and off balance sheet. 

“Indenture” has the meaning set forth in the preamble of the Base Indenture. 

  
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 “Indenture Supplement” means each supplement to the Base Indenture,
executed and delivered in conjunction with the issuance of the related Series of Notes, including the schedules and exhibits thereto. 

“Indenture Trustee” means the Person named as the Indenture Trustee in the Preamble to the Base Indenture until a successor
Indenture Trustee shall have become such pursuant to the applicable provisions of this Base Indenture, and thereafter “Indenture Trustee” means and includes each Person who is then an Indenture Trustee thereunder. 

“Indenture Trustee Authorized Officer” means, with respect to the Indenture Trustee, Calculation Agent, Paying Agent, Note
Registrar or Securities Intermediary, any officer of the Indenture Trustee, Calculation Agent, Paying Agent, Note Registrar or Securities Intermediary assigned to its corporate trust services, including any vice president, assistant vice president,
assistant treasurer or trust officer, who is customarily performing functions with respect to corporate trust matters and, with respect to a particular corporate trust matter under this Base Indenture, any other officer to whom such matter is
referred because of such officer’s knowledge of and familiarity with the particular subject, in each case, having direct responsibility for the administration of this Base Indenture. 

“Indenture Trustee Fee” means the fee payable to the Indenture Trustee pursuant to the terms of the Base Indenture on each
Payment Date in a monthly amount as agreed in the Indenture Trustee Fee Letter, which includes the fees to Citibank, and its successors and assigns in its capacities as Calculation Agent, Paying Agent, Securities Intermediary and Note Registrar;
provided, that the Indenture Trustee shall also be entitled to receive payment of (i) separate fees and expenses pursuant to Section 11.7 of the Base Indenture in connection with tax filings made by the Indenture Trustee and
(ii) any additional expenses permitted pursuant to the terms of the Indenture Trustee Fee Letter. 
 “Indenture Trustee Fee
Letter” means the fee letter agreement between Citibank and PMC, dated October 10, 2017, setting forth the fees to be paid to Citibank for the performance of its duties as Indenture Trustee and in all other capacities under the
Indenture. 
 “Initial Note Balance” means, for any Note or for any Class of Notes, the Note Balance of such Note upon the
related Issuance Date as specified in the related Indenture Supplement. 
 “Insolvency Event” means, with respect to a
specified Person, (i) an involuntary case or other proceeding under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect shall be commenced against any Person or any substantial part of its property, or a
petition shall be filed against such Person in an involuntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, seeking the appointment of a receiver, liquidator, assignee, custodian, trustee,
sequestrator or similar official for such Person or for any substantial part of its property, or the winding-up or liquidation of such Person’s business and (A) such case or proceeding shall continue undismissed and unstayed and in effect
for a period of sixty (60) days or (B) an order for relief in respect of such Person shall be entered in such case or proceeding under such laws or a decree or order granting such other requested relief shall be granted; or (ii) the
commencement by such Person of a voluntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, or the consent by such 

  
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Person to the entry of an order for relief in an involuntary case under any such law, or the consent by such Person to the appointment of or taking possession by a receiver, liquidator, assignee,
custodian, trustee, sequestrator or similar official for such Person or for any substantial part of its property, or the making by such Person of any general assignment for the benefit of creditors, or the failure by such Person generally to pay its
debts as such debts become due or the admission by such Person of its inability to pay its debts generally as they become due. 

“Insolvency Proceeding” means any proceeding of the sort described in the definition of Insolvency Event. 

“Interest Accrual Period” means, for any Class of Notes and any Payment Date, the period specified in the related Indenture
Supplement. 
 “Interest Amount” means, for each Interest Accrual Period and each Class of Notes, interest accrued on such
Class during such period, in an amount equal to interest on such Class’s Note Balance at the applicable Note Interest Rate. 

“Interest Day Count Convention” means, for any Series or Class of Notes, the fraction specified in the related Indenture
Supplement to indicate the number of days counted in an Interest Accrual Period divided by the number of days assumed in a year, for purposes of calculating the Interest Payment Amount for each Interest Accrual Period in respect of such Series or
Class. 
 “Interest Payment Amount” means, for any Series or Class of Notes, as applicable and with respect to any Payment
Date: 
 (i) for any Series or Class of Term Notes, the related Cumulative Interest Shortfall Amount plus the product of: 

(A) the Note Balance as of the close of business on the preceding Payment Date; 

(B) the related Note Interest Rate for such Series or Class and for the related Interest Accrual Period; and 

(C) the Interest Day Count Convention specified in the related Indenture Supplement; and 

(ii) for any Series or Class of Variable Funding Notes, the lesser of: 

(1) the related Cumulative Interest Shortfall Amount plus the product of: 

(A) the average daily aggregate VFN Principal Balance during the related Interest Accrual Period (calculated based on the average of the
aggregate VFN Principal Balances on each day during the related Interest Accrual Period); 

  
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 (B) the related Note Interest Rate for such Class during the related Interest Accrual
Period; and 
 (C) the Interest Day Count Convention specified in the related Indenture Supplement; or 

(2) such other amount as determined by the Administrative Agent and reported to the Indenture Trustee at least one (1) Business Day prior
to such Payment Date. 
 “Interested Noteholders” means, for any Class, any Noteholder or group of Noteholders holding
Notes evidencing not less than 25% of the aggregate Voting Interests of such Class. 
 “Interim Borrowing Base” means, as
of any Interim Borrowing Base Determination Date, an amount equal to the aggregate Collateral Value (as calculated using clause (c) of the definition of Market Value Percentage) of the Portfolio. 

“Interim Borrowing Base Determination Date” means the Business Day following the day in which a Modified Valuation Trigger
has occurred and is at least five (5) Business Days prior to or after the next succeeding Borrowing Base Determination Date or (ii) any other Business Day agreed to among the Issuer, the Administrator, the Indenture Trustee and the
Administrative Agent, following one (1) Business Day’s written notice to the Indenture Trustee. 
 “Interim Borrowing Base
Payment Date” means the fifth (5th) Business Day following an Interim Borrowing Base Determination Date. 
 “Interim
Payment Date” means, with respect to any Series of Notes, (i) each Interim Borrowing Base Payment Date or (ii) for each calendar week, the second (2nd) Business Day of such week following one (1) Business Day’s
written notice from the Issuer to the related VFN Noteholders, the Administrative Agent and the Indenture Trustee, or (iii) for any other Business Day, such date agreed to among the Issuer, the Administrator, the Indenture Trustee and the
Administrative Agent, following one (1) Business Day’s written notice to the Indenture Trustee. If an Interim Payment Date falls on the same date as a Payment Date, the Interim Payment Date shall be disregarded. No Interim Payment Dates
shall occur during the Full Amortization Period. 
 “Interim Payment Date Report” has the meaning set forth in
Section 3.2(c) of the Base Indenture. 
 “Investment Company Act” means the Investment Company Act of 1940.
“IRS” means the United States Internal Revenue Service. 
 “Issuance Date” means, for any Series of Notes,
the date of issuance of such Series, as set forth in the related Indenture Supplement. 
 “Issuer” has the meaning set
forth in the Preamble to the Base Indenture. 

  
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 “Issuer Affiliate” means any person involved in the organization or
operation of the Issuer or an Affiliate of such a person which is also an affiliate within the meaning of Rule 3a-7 promulgated under the Investment Company Act. 

“Issuer Authorized Officer” means any director or any authorized officer of the Owner Trustee or the Administrator who may
also be an officer or employee of PMC, its managing member or an Affiliate of PMC or its managing member. 
 “Issuer
Certificate” means a certificate (including an Officer’s Certificate) signed in the name of an Issuer Authorized Officer, or signed in the name of the Issuer by an Issuer Authorized Officer. Wherever this Base Indenture requires that
an Issuer Certificate be signed also by an accountant or other expert, such accountant or other expert (except as otherwise expressly provided in this Base Indenture) may be an employee of PMC or an Affiliate. 

“Issuer Indemnified Party” has the meaning set forth in Section 9.2(a) of the Base Indenture. 

“Issuer Tax Opinion” means, with respect to any undertaking, an Opinion of Counsel to the effect that, for United States
federal income tax purposes, (i) such undertaking will not result in the Issuer being subject to tax on its net income as an association (or publicly traded partnership) taxable as a corporation or a taxable mortgage pool taxable as a
corporation, (ii) if any Notes are issued or deemed issued as a result of such undertaking, any Notes issued or deemed issued on such date that are not Retained Notes will be debt, and (iii) if requested by the Administrative Agent, such
undertaking will not cause the Noteholders or beneficial owners of Notes that are not Retained Notes to have been sold or exchanged under section 1001 of the Code (excluding, for this purpose, sales or exchanges of the Notes that result in gain or
loss of zero for federal income tax purposes). For any Series of VFNs that is a Retained Note, clause (ii) shall apply to the repurchase agreement financing of such Series of VFNs, if any (rather than to the VFNs subject to such financing).

 “Laws” means any law (including common law), constitution, statute, treaty, regulation, rule, ordinance, order,
injunction, writ, decree or award of any Governmental Authority. 
 Lender Adjusted Net Worth” has the meaning set forth in the
Fannie Mae Contract. 
 “Level” means any of the six (6) tiers of Servicer SDQ Rate set forth in the definition of
Stop-Loss Cap. 
 “License” means any license, permit, approval, right, privilege, quota, concession, or franchise issued,
granted, conferred or otherwise created by a Governmental Authority. 

  
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 “Lien” means, with respect to any property or asset of any Person
(a) any mortgage, lien, pledge, charge or other security interest or encumbrance of any kind in respect of such property or asset or (b) the interest of a vendor or lessor arising out of the acquisition of or agreement to acquire such
property or asset under any conditional sale agreement, lease purchase agreement or other title retention agreement. 

“Liquidity” has the meaning set forth in the Fannie Mae Lender Contract. 

“Majority Certificateholders” means the holders of Trust Certificates representing a Percentage Interest of more than 50% in
the aggregate. 
 “Majority Noteholders” means, with respect to any Series or Class of Notes or all Outstanding Notes, the
Noteholders of greater than 50% of the Note Balance of the Outstanding Notes of such Series or Class or of Outstanding Notes, as the case may be, measured by Voting Interests in any case. 

“Margin Call” has the meaning set forth in Section 2.05(a) of the PC Repurchase Agreement. 

“Margin Call Payment” means (i) the sale and delivery of Eligible Securities, or (ii) the transfer of cash to the
Issuer, as Repo Buyer, under the PC Repurchase Agreement. 
 “Margin Deadlines” has the meaning set forth in
Section 2.05(b) of the PC Repurchase Agreement. 
 “Margin Deficit” has the meaning set forth in Section 2.05(a)
of the PC Repurchase Agreement. 
 “Margin Excess” has the meaning set forth in Section 2.05(d) of the PC Repurchase
Agreement. 
 “Margin Excess Notice” means, in connection with a funding of Margin Excess pursuant to Section 2.05(d)
of the PC Repurchase Agreement, an irrevocable notice delivered by PMC, as Repo Seller, to the Issuer, as Repo Buyer, with a copy to the Administrative Agent and the Indenture Trustee, which notice (i) shall be substantially in the form of
Exhibit C to the PC Repurchase Agreement, (ii) shall be signed by a Responsible Officer of PMC and be received by the Issuer, as Repo Buyer, prior to 1:00 p.m. (New York time) one (1) Business Day prior to the related Interim Payment Date,
(iii) shall specify (A) the Dollar amount of the requested Margin Excess, (B) the requested Interim Payment Date, and (C) shall include a copy of the related “Funding Certification” being delivered pursuant to the
Indenture in connection with such funding of Margin Excess, if applicable, and (iv) shall have attached to it a revised Asset Schedule dated the date of such notice. 

“Market Value” means, as of any date of determination, (a) with respect to the Participation Certificate, as of any date
of determination, the product of (1) the Market Value Percentage as of the most recent Market Value Report and (2) the aggregate unpaid principal balance of the Mortgage Loans related to the MSRs evidenced by the Participation Certificate
as 

  
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of the last day for which such information is available; (b) with respect to any Eligible Security, the fair market value thereof as of the close of business on the immediately preceding
Business Day, as determined by an independent third party appointed by the Administrator and subject to procedures mutually agreed to between the Administrator and the Administrative Agent; and (c) with respect to any Pledged Margin Security,
the positive mark to market gain, if any, as determined by using the bid side pricing of either Tradeweb Markets, LLC, Thomson Reuters or such other pricing service mutually agreeable to the Administrator and the Administrative Agent or the exchange
upon which such contract is traded, as applicable. 
 “Market Value Information” has the meaning set forth in
Section 3.1(a) of the Base Indenture. 
 “Market Value Percentage” means: 

(a) for Funding purposes (and for the purpose of calculating the Collateral Value used in connection with such determination of
a Funding) from time to time, as of any date of determination, the lesser of (i) the fair value percentage of the MSR determined by the Servicer as of the most recent date of determination or (ii) the middle of the range of the fair value
percentage, including any Modified Valuation as applicable, of the MSR from the most recently delivered Market Value Report; 

(b) for purposes of determining the Borrowing Base (and for the purpose of calculating the Collateral Value used in connection
with such determination of the Borrowing Base) from time to time, as of any date of determination, the greater of (i) the Market Value Percentage calculated for Funding purposes pursuant to clause (a) above, and (ii) the lower of
(x) the product of (1) the middle of the range of the fair value percentage of the MSR from the most recently delivered Market Value Report and (2) 105.5% or (y) the product of (1) the average of the middle of the range of
the fair value percentage of the MSR from the three (3) most recently delivered Market Value Reports and (2) 104%; or 

(c) for purposes of determining the Interim Borrowing Base (and for the purpose of calculating the Collateral Value used in
connection with such determination of the Interim Borrowing Base) from time to time, as of any date of determination, the greater of (i) the Market Value Percentage calculated for Funding purposes pursuant to clause (a) above which shall
represent the Modified Valuation applicable to the Interim Borrowing Base Determination Date, and (ii) the lower of (x) the product of (1) the middle of the range of the fair value percentage, which shall represent the applicable
Modified Valuation, of the MSR from the most recently delivered Market Value Report and (2) 105.5% or (y) the product of (1) the average of the middle of the range of the fair value percentage, based on the applicable Modified
Valuation, of the MSR from the three (3) most recently delivered Market Value Reports and (2) 104%. 

  
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“Market
Value Report” has the meaning set forth in Section 3.3(g) of the
Base Indenture. 

“Material Adverse Effect” means (a) a material adverse change in, or a material adverse effect upon, the operations,
business, properties, condition (financial or otherwise) or prospects of PMC, the Guarantor or any Affiliate thereof that is a party to any Program Agreement taken as a whole; (b) a material impairment of the ability of PMC, the Guarantor or
any Affiliate thereof that is a party to any Program Agreement to perform under any Program Agreement and to avoid any Event of Default; (c) a material adverse effect upon the legality, validity, binding effect or enforceability of any Program
Agreement against PMC, the Guarantor or any Affiliate thereof that is a party to any Program Agreement; or (d) a material adverse effect on the rights and remedies of PMC under any of the PMH Documents. 

“Maximum VFN Principal Balance” means, for any VFN Class, the amount specified in the related Indenture Supplement. 

“MBS” means a mortgage backed security guaranteed by Fannie Mae pursuant to the Fannie Mae Lender Contract. 

“Minimum Reserve Amount” means the lesser of: (i) the Stop-Loss Cap and (ii) the sum of: (A) the Current
Amounts Due, plus (B) all projected amounts (calculated using Fannie Mae’s proprietary modeling system and Fannie Mae’s historical data) that may be due to Fannie Mae related to the items described in clauses B(1)-B(3) of the
definition of Current Amounts Due. If the amounts determined in clauses (i) and (ii) above are equal, then the “Minimum Reserve Amount” is the amount determined in clause (ii) above. 

“Modified Valuation” means the fair market values and the valuation percentages of the Portfolio provided by the MSR
Valuation Agent in the Market Value Report assuming that the 10-year U.S. Treasury rate (mid-mark) as compared to the 10-year U.S. Treasury rate (mid- mark) used by the MSR Valuation Agent as of the Borrowing Base Determination Date
(i) declines by more than 0.375% or (ii) increases by more than 0.375%. 
 “Modified Valuation Trigger” occurs
when the 10-year U.S. Treasury rate (mid- mark) as compared to the 10-year U.S. Treasury rate (mid-mark) used by the MSR Valuation Agent as of the most recent Borrowing Base Determination Date (i) declines by more than 0.375% or
(ii) increases by more than 0.375%. 
 “Moody’s” means Moody’s Investors Service, Inc. or any successors
thereto. 
 “Mortgage” means, with respect to a Mortgage Loan, a mortgage, deed of trust or other instrument encumbering a
fee simple interest in real property securing a Mortgage Note. 
 “Mortgage Loan” means all loans serviced or to be
serviced on an ongoing basis by the Servicer for Fannie Mae. 
 “Mortgage Note” means the note or other evidence of the
indebtedness of a mortgagor secured by a Mortgage under a Mortgage Loan and all amendments, modifications and attachments thereto. 

  
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 “Mortgage Selling and Servicing Contract” means the Mortgage Selling and
Servicing Contract, dated as of October 15, 2010, as amended by the Addendum to Mortgage Selling and Servicing Contract, dated as of January 14, 2013, between the Servicer and Fannie Mae, pursuant to which the Servicer is selling mortgage
loans to Fannie Mae or servicing Mortgage Loans on Fannie Mae’s behalf, and any related addenda. 
 “Mortgaged
Property” means the real property (including all improvements, buildings, fixtures and building equipment thereon and all additions, alterations and replacements made at any time with respect to the foregoing) and all other collateral
securing repayment of the related Mortgage Loan. 
 “MRA Payment Date” means the Business Day immediately preceding a
“Payment Date” as defined in the Base Indenture. 
 “MSR Monthly Report” has the meaning set forth in
Section 3.3(f) of the Base Indenture. 
 “MSR Portfolio” means the Mortgage Loans underlying the Participation
Certificates. 
 “MSR Valuation Agent” means Incenter Mortgage Advisors, LLC, or any successor third party mortgage
servicing rights valuation agent appointed by PMC in accordance with the terms of this Base Indenture. 
 “MSR Valuation Agent
Agreement” means the MSR Valuation Agent Agreement, dated as of December 20, 2017, among the MSR Valuation Agent, PMC and the Issuer. 

“MSR Valuation Agent Fee” means the fees and expenses payable to the MSR Valuation Agent pursuant to the terms of the MSR
Valuation Agent Agreement. 
 “MSRs” means, with respect to the Mortgage Loans, the mortgage servicing rights, including
any and all of the following: (a) any and all rights to service the Mortgage Loans; (b) any payments to or monies received by the Servicer for servicing the Mortgage Loans; (c) any late fees, penalties or similar payments with respect
to the Mortgage Loans; (d) all agreements or documents creating, defining or evidencing any such servicing rights to the extent they relate to such servicing rights and all rights of the Servicer thereunder; (e) escrow or other similar
payments with respect to the Mortgage Loans and any amounts actually collected by the Servicer with respect thereto; (f) all accounts and other rights to payment related to any of the property described in this definition; and (g) any and
all documents, files, records, servicing files, servicing documents, servicing records, data tapes, computer records, or other information pertaining to the Mortgage Loans or pertaining to the past, present or prospective servicing of the Mortgage
Loans; provided, however, MSRs shall not include any Advance Reimbursement Amounts. 
 “Multiemployer Plan”
means a multiemployer plan defined as such in Section 3(37) of ERISA to which contributions have been or are required to be made by PMC or any ERISA Affiliate and that is covered by Title IV of ERISA. 

  
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 “Net Earnings” means reported Total Gross Income (Loss)(as calculated based
on the values assigned to such terms and reported in the Mortgage Bankers’ Financial Reporting Form) from servicing, less: (x) changes in MSR value; (y) gains (losses) on derivatives used to hedge Servicing Rights; and (z) gains
(losses) on other derivatives or other financial instruments, calculated based on data reported in the servicing column of Schedule C (Income) of its Mortgage Bankers’ Financial Reporting Form. 

“Net Excess Cash Amount” means, on any Payment Date or Interim Payment Date, the amount of funds available to be distributed
to PMCthe holder of
the Owner Trust Certificate pursuant to Sections 4.4(a)(iv), 4.5(a)(1)(x) or 4.5(a)(2)(vi) of the Base Indenture, as applicable. 

“Net Payment Amount” means with respect to any MRA Payment Date or Interim Payment Date, an amount equal to the sum of
(i) the amounts payable by PMC pursuant to Sections 2.03, 2.04 or 2.05 of the PC Repurchase Agreement, as applicable, minus (ii) the amounts, if any, that will be distributable under Sections 4.4(a)(iv) or 4.5(a)(1)(x) of the Base
Indenture to PMC, as the holder of the Owner Trust Certificate. 

“Net Proceeds” means either (A) the Gross Proceeds minus the Minimum Reserve Amount, if Fannie Mae chooses to market the
New Servicing Rights, or (B) the Appraised Market Value (plus any termination fee due to the Servicer under the Fannie Mae Lender Contract) minus the Minimum Reserve Amount, if Fannie Mae chooses to keep the Servicing Rights. 

“New Servicing Rights” means the new servicing rights created when Fannie Mae engages a new interim servicer or subservicer
to service the Subject Mortgages after Fannie Mae terminates the Servicing Rights. 
 “Non-Excluded Taxes” has the meaning
set forth in Section 2.09(a) of the PC Repurchase Agreement. 
 “Non-SDQ Factor” means, for a Level, the number of
basis points set out in the definition of Stop-Loss Cap as the Non-SDQ Factor for such Level. 
 “Non-SDQ Loans” means
Mortgage Loans which are not SDQ Loans. “Nonpublic Personal Information” means any consumer’s nonpublic personal information as defined in the Gramm-Leach-Bliley Act. 

“Note” or “Notes” means any note or notes of any Class authenticated and delivered from time to time under
this Base Indenture and the related Indenture Supplement including any Variable Funding Note. 
 “Note Balance” means, on
any date (i) for any Term Note, or for any Series or Class of Term Notes, as the context requires, the Initial Note Balance of such Term Note or the aggregate of the Initial Note Balances of the Term Notes of such Series or Class, as
applicable, less all amounts paid to the Noteholder of such Term Note or Noteholders of such Term Notes with respect to principal, and (ii) for any Variable Funding Note, its VFN Principal Balance on such date. 

  
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 “Note Interest Rate” means, for any Note, or for any Series or Class of
Notes as the context requires, the interest rate specified, or calculated as provided in, the related Indenture Supplement. 
 “Note
Owner” means, with respect to a Book Entry Note, the Person who is the owner of such Book Entry Note, as reflected on the books of the Depository, or on the books of a Person maintaining an account with such Depository (directly as a
Depository Participant or as an indirect participant, in each case in accordance with the rules of such Depository) and with respect to any Definitive Notes, the Noteholder of such Note. 

“Note Payment Account” means the segregated non-interest bearing trust account or accounts, each of which shall be an
Eligible Account, established and maintained pursuant to Sections 4.1 and 4.8 of the Base Indenture and entitled “Citibank, N.A., as Indenture Trustee in trust for the Noteholders of the PMT ISSUER TRUST—FMSR Collateralized Notes, Note
Payment Account”. 
 “Note Purchase Agreement” means an agreement with one or more initial purchasers or placement
agents under which the Issuer will sell the Notes to such initial purchaser(s), or contract with such placement agent(s) for the initial private placement of the Notes, in each case as further defined in the related Indenture Supplement. 

“Note Rating Agency” means any nationally recognized rating agency, and, with respect to any Outstanding Class of Notes, each
rating agency, if any, specified in the related Indenture Supplement. References to Note Rating Agencies or “each” or “any” Note Rating Agency in this Base Indenture refer to Note Rating Agencies that were engaged to rate any
Notes issued under this Base Indenture, which Notes are still Outstanding. 
 “Note Register” has the meaning set forth in
Section 6.5 of the Base Indenture. 
 “Note Registrar” means the Person who keeps the Note Register specified in
Section 6.5 of the Base Indenture. 
 “Noteholder” means the Person in whose name a Note is registered in the Note
Register, except that, solely for the purposes of giving certain consents, waivers, requests or demands as may be specified in this Base Indenture, the interests evidenced by any Note registered in the name of, or in the name of a Person or entity
holding for the benefit of, the Issuer, PMC or any Person that is an Affiliate of either or both of the Issuer and PMC, shall not be taken into account in determining whether the requisite percentage necessary to effect any such consent, waiver,
request or demand shall have been obtained (unless such Person is the sole holder of the Notes). The Indenture Trustee shall have no responsibility to count any Person as a Noteholder who is not permitted to be so counted under the Base Indenture
pursuant to the definition of “Outstanding” unless a Responsible Officer of the Indenture Trustee has actual knowledge that such Person is an Affiliate of either or both of the Issuer and PMC. 

  
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 “Notice” or “Notices” means all requests, demands and
other communications, in writing (including facsimile transmissions and e-mails), sent by overnight delivery service, facsimile transmission, electronic transmission or hand-delivery to the intended recipient at the address specified in
Section 10.04 of the PC Repurchase Agreement or, as to any party, at such other address as shall be designated by such party in a written notice to the other party. 

“NRSRO” means a nationally recognized statistical rating organization that is a credit rating agency that issues credit
ratings that the U.S. Securities and Exchange Commission permits other financial firms to use for certain regulatory purposes. 

“Obligations” means (a) all of PMC’s indebtedness, obligations to pay the outstanding principal balance of the
Purchase Price, together with interest thereon on the Termination Date, outstanding interest due on each MRA Payment Date, and other obligations and liabilities, to the Issuer, as Repo Buyer, arising under, or in connection with, the Program
Agreements, whether now existing or hereafter arising; (b) any and all sums reasonably incurred and paid by the Issuer, as Repo Buyer, or on behalf of the Issuer, as Repo Buyer, in order to preserve any Repurchase Asset or its interest therein;
(c) in the event of any proceeding for the collection or enforcement of any of PMC’s indebtedness, obligations or liabilities referred to in this definition, the reasonable expenses of retaking, holding, collecting, preparing for sale,
selling or otherwise disposing of or realizing on any Repurchase Asset, or of any exercise by the Issuer, as Repo Buyer, of its rights under the Program Agreements, including, without limitation, reasonable attorneys’ fees and disbursements and
court costs; and (d) all of PMC’s indemnity obligations to the Issuer, as Repo Buyer, pursuant to the Program Agreements. 

“Obligor” means any Person who owes or may be liable for payments under a Mortgage Loan. 

“OFAC” has the meaning set forth in Section 10.1(j) of the Base Indenture. “Officer’s Certificate”
means a certificate signed by an Issuer Authorized Officer and delivered to the Indenture Trustee. Wherever this Base Indenture requires that an Officer’s Certificate be signed also by an accountant or other expert, such accountant or other
expert (except as otherwise expressly provided in this Base Indenture) may be an employee of the Servicer. 
 “Opinion of
Counsel” means a written opinion of counsel reasonably acceptable to the Indenture Trustee, which counsel may, without limitation, and except as otherwise expressly provided in this Base Indenture and except for any opinions related to tax
matters or material adverse effects on Noteholders, be an employee of the Issuer, PMC or any of their Affiliates. 
 “Optional
Payment” has the meaning set forth in Section 2.03(c) of the PC Repurchase Agreement. 

“Organizational Documents” means the Issuer’s Trust Agreement (including the related Owner Trust
Certificate). 
 “Other Taxes” has the meaning set forth in in Section 2.09(b) of the PC Repurchase Agreement. 

  
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 “Outstanding” means, with respect to all Notes and, with respect to a Note
or with respect to Notes of any Series or Class means, as of the date of determination, all such Notes theretofore authenticated and delivered under this Base Indenture, except: 

(i) any Notes theretofore canceled by the Indenture Trustee or delivered to the Indenture Trustee for cancellation, or canceled
by the Issuer and delivered to the Indenture Trustee pursuant to Section 6.9 of the Base Indenture; 
 (ii) any Notes to
be redeemed for whose full payment (including principal and interest) redemption money in the necessary amount has been theretofore deposited with the Indenture Trustee or any Paying Agent in trust for the Noteholders of such Notes; provided
that, if such Notes are to be redeemed, notice of such redemption has been duly given if required pursuant to this Base Indenture, or provision therefore satisfactory to the Indenture Trustee has been made; 

(iii) any Notes which are canceled pursuant to Section7.3 of the Base Indenture; and 

(iv) any Notes in exchange for or in lieu of which other Notes have been authenticated and delivered pursuant to this Base
Indenture (except with respect to any such Note as to which proof satisfactory to the Indenture Trustee is presented that such Note is held by a person in whose hands such Note is a legal, valid and binding obligation of the Issuer). 

For purposes of determining the amounts of deposits, allocations, reallocations or payments to be made, unless the context clearly requires
otherwise, references to “Notes” will be deemed to be references to “Outstanding Notes”. In determining whether the Noteholders of the requisite principal amount of such Outstanding Notes have taken any Action under the Base
Indenture, Notes owned by the Issuer, PMC, or any Affiliate of the Issuer or PMC (except with respect to the Series 2017-VF1 Notes which have been sold by PMC to the VFN Repo
BuyerBuyers
 under the Series 2017-VF1 Repurchase Agreement and any Action to be given or taken by a Noteholder under the Base Indenture shall be taken by the Repo Buyer under the Series 2017-VF1 Repurchase Agreement)
shall be disregarded. In determining whether the Indenture Trustee will be protected in relying upon any such Action, only Notes which an Indenture Trustee Authorized Officer has actual knowledge are owned by the Issuer or PMC, or any Affiliate of
the Issuer or PMC, will be so disregarded. Notes so owned which have been sold pursuant to a repurchase transaction or pledged in good faith may be regarded as Outstanding if the pledgee proves to the satisfaction of the Indenture Trustee the
pledgee’s right to act as owner with respect to such Notes and that the Repo Buyer or pledgee is not the Issuer or PMC or any Affiliate of the Issuer or PMC. Retained Notes shall not constitute Notes “Outstanding” to the extent
contemplated by the applicable Indenture Supplement. 

  
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 “Owner” means, when used with respect to a Note, any related Note Owner.
“Owner Trust Certificate” means a certificate evidencing a 100% undivided beneficial interest in the Issuer. 

“Owner Trust Estate” means the estate of the Trust. 

“Owner Trustee” means WSFS, not in its individual capacity but solely as owner trustee under the Trust Agreement, and any
successor Owner Trustee thereunder. 
 “Owner Trustee Fee” means the annual fee of $7,000, to be paid annually on the
Payment Date occurring in December of each year. 
 “Owner Trustee Lien” means the lien in favor of the Owner Trustee
granted pursuant to Section 8.3 of the Trust Agreement, which lien is subordinated to the lien of the Indenture Trustee as provided in such Section 8.3 and is subject and subordinate to any and all rights of Fannie Mae under the Fannie Mae
Lender Contract or the Acknowledgment Agreement. 
 “Participation Agreement” means, (i) with respect to the Sold MSR
Excess Spread PC, the Excess Spread Participation Agreement, (ii) with respect to the Retained MSR Excess Spread PC, the Retained Excess Spread Participation Agreement, and (iii) with respect to any other Participation Certificate, as set
forth in the related Participation Agreement. 
 “Participation Certificate” has the meaning, (i) with respect to the
Excess Spread Participation Agreement, the Sold MSR Excess Spread PC, (ii) with respect to the Retained Excess Spread Participation Agreement, the Retained MSR Excess Spread PC, and with respect to any other Participation Agreement, as set
forth therein. 
 “Participation Certificate Schedule” means, as of any date, the list attached as Schedule 1 to the Base
Indenture, as it may be amended from time to time in accordance with Section 2.1(b) of the Base Indenture. 
 “Participation
Interest” has the meaning set forth in the Excess Spread Participation Agreement or the Retained Excess Spread Participation Agreement, as applicable. 

“Paying Agent” means the same Person who serves at any time as the Indenture Trustee, or an Affiliate of such Person, as
paying agent pursuant to the terms of this Base Indenture. 
 “Payment Date” means, in any month beginning in January 2018,
the 25th day of such month or, if such 25th day is not a Business Day, the next Business Day following such 25th day. 

“Payment Date Report” has the meaning set forth in Section 3.2(b) of the Base Indenture. 

“PBGC” means the Pension Benefit Guaranty Corporation or any entity succeeding to any or all of its functions
under ERISA. 
 “PC Documents” means, collectively, the Participation Certificates and the PC Repurchase
Agreement. 

  
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 “PC Repo Guaranty” means that certain guaranty, made by the Guarantor in
favor of the Issuer, guaranteeing payment to the Issuer of all amounts owing to the Issuer from PMC pursuant to the PC Repurchase Agreement. 

“PC Repo Pricing Side Letter” means the pricing side letter agreement to the PC Repurchase Agreement, dated as of the Closing
Date, among the Issuer, as Repo Buyer, PMC, as Repo Seller, and the Guarantor. 
 “PC Repurchase Agreement” means the
Master Repurchase Agreement, dated as of December 20, 2017, among PMC, as Repo Seller, the Issuer, as Repo Buyer and the Guarantor, pursuant to which PMC has sold to the Issuer, all of its right, title and interest in, to and under (i) the
Retained MSR Excess Spread PC (including all rights to the Retained MSR Excess Spread related thereto), and (ii) subject to PMH’s rights under the PMH Repurchase Agreement, the Sold MSR Excess Spread PC (including all rights to the Sold
MSR Excess Spread related thereto). 
 “Percentage Interest” means, with respect to each Trust Certificate, the percentage
indicated on the face thereof. 
 “Permitted Investments” means, at any time, any one or more of the following obligations
and securities: 
 (i)(a) direct obligations of, or obligations fully guaranteed as to timely payment of principal and
interest by, the United States or (b) direct obligations of, or obligations fully guaranteed as to timely payment of principal and interest by, any agency or instrumentality of the United States, provided that such obligations are backed
by the full faith and credit of the United States; and provided further that the short-term debt obligations of such agency or instrumentality at the date of acquisition thereof have been rated (x) “A-1” or the equivalent by
any NRSRO if such obligations have a maturity of less than sixty (60) days after the date of acquisition or (y) “A-1+” or the equivalent by any NRSRO if such obligations have a maturity greater than sixty (60) days after the
date of acquisition; 
 (ii) repurchase agreements on obligations specified in clause (a) maturing not more than
three months from the date of acquisition thereof; provided that the short-term unsecured debt obligations of the party agreeing to repurchase such obligations are at the time rated “A-1+” or the equivalent by any NRSRO; 

(iii) certificates of deposit, time deposits and bankers’ acceptances of any U.S. depository institution or trust company
incorporated under the laws of the United States or any state thereof and subject to supervision and examination by a federal and/or state banking authority of the United States; provided that the unsecured short-term debt obligations of such
depository institution or trust company at the date of acquisition thereof have been rated “A-1+” or the equivalent by any NRSRO; 

  
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 (iv) commercial paper of any entity organized under the laws of the United
States or any state thereof which on the date of acquisition has been rated “A-1+” or the equivalent by any NRSRO; 

(v) interests in any U.S. money market fund which, at the date of acquisition of the interests in such fund (including any such
fund that is managed by the Indenture Trustee or an Affiliate of the Indenture Trustee or for which the Indenture Trustee or an Affiliate acts as advisor) and throughout the time as the interest is held in such fund, has a rating of “AAAm”
or the equivalent by any NRSRO; or 
 (vi) other obligations or securities that are acceptable to the NRSRO as Permitted
Investments under the Base Indenture and if the investment of account funds therein will not result in a reduction in the then current rating of the Notes, as evidenced by a letter to such effect from the NRSRO; 

provided, that each of the foregoing investments shall mature no later than the Business Day prior to the Payment Date immediately following the date
of purchase thereof (other than in the case of the investment of monies in instruments of which the Indenture Trustee is the obligor, which may mature on the related Payment Date), and shall be required to be held to such maturity; and provided
further, that each of the Permitted Investments may be purchased by the Indenture Trustee through an Affiliate of the Indenture Trustee. 

“Permitted Lien” means any liens for taxes, assessments, or similar charges incurred in the ordinary course of business and
which are not yet due or as to which the period of grace, if any, related thereto has not expired or which are being contested in good faith and by appropriate proceedings if adequate reserves are maintained to the extent required by GAAP. 

“Person” means any individual, corporation, estate, partnership, limited liability company, limited liability partnership,
joint venture, association, joint-stock company, business trust, trust, unincorporated organization, government or any agency or political subdivision thereof, or other entity of a similar nature. 

“PIP” means any performance improvement plan entered into between the Servicer and Fannie Mae from time to time. 

“Place of Payment” means, with respect to any Class of Notes issued under the Indenture, the city or political subdivision so
designated with respect to such Class of Notes by the Indenture Trustee. 
 “Plan” means an employee benefit or other plan
established or maintained by PMC or any ERISA Affiliate and covered by Title IV of ERISA, other than a Multiemployer Plan. 
 “Plan
Asset Regulations” has the meaning set forth in Section 6.5(k) of the Base Indenture. 
 “Plan
Assets” has the meaning set forth in United States Department of Labor regulations at 29 C. F. R, section 2510.3-101 as modified by Section 3(42) of ERISA. 

  
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 “Pledged Margin Securities Account” means a securities account which shall
be established for the benefit of the Indenture Trustee. 
 “Pledged Margin Securities Account Control Agreement” means, a
securities account control agreement which shall be entered into by and among PMC, the Issuer, the Indenture Trustee, PLS and the Guarantor for the purpose of holding the Pledged Margin Securities. 

“Pledged Margin Security” means any exchange traded futures and options or any “to be announced” long forward
contract on a mortgage-backed security. For the avoidance of doubt, put contracts, short forward contracts and shorting will not be permitted with respect to Pledged Margin Securities. 

“PLS” means PennyMac Loan Services, LLC, a limited liability company organized under the laws of the State of Delaware, or
its permitted successors and assigns. 

“PLS
Subservicing Agreement” means the ThirdFourth Amended and Restated Flow Servicing Agreement, dated as of September 12,
2016,June 30, 2020, between PennyMac Operating
Partnership, L.P., as owner, and PLS, as
servicer., as
amended by Amendment No. 1 thereto, dated as of March 9, 2021. 

“PMC” means PennyMac Corp., a corporation organized under the laws of the State of Delaware, or its permitted successors and
assigns. 
 “PMC Repurchase Price” means the price for which PMC is entitled to repurchase a Participation Certificate from
the Issuer, under the PC Repurchase Agreement. 
 “PMH” means PennyMac Holdings, LLC, a limited liability company organized
under the laws of the State of Delaware, or its permitted successors and assigns. 
 “PMH Documents” means the PMH
Repurchase Agreement, PMH Repo Guaranty, PMH Subordination Agreement, pricing letter, side letter, confirmations and all documents ancillary thereto that evidence a PMH Transaction in the form approved by the Issuer, in writing in its sole
discretion with any material modifications approved by the Issuer in writing in its sole discretion (excluding provisions related to the advance rate or interest rate of such PMH Transactions, which shall not be subject to the Issuer review or
approval). 
 “PMH Guaranteed Amount” has the meaning set forth in the PMH Repo Guaranty. “PMH Repo
Guaranty” means that certain guaranty, made by Guarantor in favor of 
 PMC, guaranteeing payment to PMC of all amounts owing to PMC
from PMH pursuant to the PMH Repurchase Agreement. 
 “PMH Repurchase Agreement” means the Master Repurchase Agreement,
dated as of December 20, 2017, between PMH, as Repo Seller, and PMC, as Repo Buyer, related to the Sold MSR Excess Spread PC. 

  
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 “PMH Repurchase Price” means the price for which PMH is entitled to
repurchase the Sold MSR Excess Spread PC from PMC, under the PMH Repurchase Agreement. 
 “PMH Subordination Agreement”
means the Subordination, Acknowledgment and Pledge Agreement, dated as of December 20, 2017, between the Issuer, as buyer, and PMH. 

“PMH Transaction” means a transaction between PMH, as Repo Seller, and PMC whereby PMH pledges the Sold MSR Excess Spread to
PMC against the transfer of funds by the PMC, which Sold MSR Excess Spread is concurrently or consecutively pledged to the Issuer, as Repo Buyer, under the PC Repurchase Agreement. 

“PMT” means PennyMac Mortgage Investment Trust, a real estate investment trust organized under the laws of the State of
Maryland, or its permitted successors and assigns. 
 “Pool Purchase Contract” means an agreement between Fannie Mae and
the Servicer to buy and sell mortgage loans or Participation Interests for inclusion in an MBS pool. 
 “Portfolio” means
each of (i) The Retained MSR Portfolio, and (ii) the Sold MSR Portfolio, as applicable. 
 “Portfolio
Collections” shall have the meaning set forth in the Excess Spread Participation Agreement. 
 “Portfolio Excess
Spread” means, collectively, the Retained MSR Excess Spread and the Sold MSR Excess Spread and with respect to any other Participation Certificate, the Excess Spread related thereto. 

“Portfolio Mortgage Loan” means a Retained MSR Portfolio Mortgage Loan or a Sold MSR Portfolio Mortgage Loan, as applicable.

 “Portfolio Total Spread” shall have the meaning set forth in the Excess Spread Participation Agreement. 

“Predecessor Notes” of any particular Note means every previous Note evidencing all or a portion of the same debt as that
evidenced by such particular Note; and, for the purposes of this definition, any Note authenticated and delivered under Section 6.6 of the Base Indenture in lieu of a mutilated, lost, destroyed or stolen Note will be deemed to evidence the same
debt as the mutilated, lost, destroyed or stolen Note. 
 “Price Differential” means with respect to any Transaction as of
any date of determination, an amount equal to the sum of (i) the product of (A) the Pricing Rate for such Transaction, (B) the Purchase Price for such Transaction and (C) a fraction, the numerator of which is the number of days
elapsed from and including the preceding MRA Payment Date to and excluding such date of determination and the denominator of which equals 360, and (ii) the 

  
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aggregate expected related fees (including Default Supplemental Fees, and Step-Up Fees), costs and expenses (including any Fees, Expenses, reasonable out-of-pocket expenses and indemnification
amounts owed for Administrative Expenses of the Issuer described in Section 4.5(a)(1)(ii) of the Base Indenture, and Specified Call Premium Amounts) as of such date of determination (as determined by the Administrative Agent). 

“Price Differential Statement Date” has the meaning set forth in Section 2.04(a) of the PC Repurchase Agreement. 

“Pricing Rate” “ has the meaning set forth in Section 1 of the PC Repo Pricing Side Letter. 

“Proceeds” means “proceeds” as defined in Section 9-102(a)(64) of the UCC. “Program
Agreements” means the PC Repurchase Agreement, the PC Repo Pricing Side Letter, the Dedicated Account Control Agreement, the Pledged Margin Securities Account Control Agreement, if any, the Dedicated Account Pledge Agreement, the Indenture,
the Participation Agreements, and the PMH Documents. 
 “Prohibited Person” has the meaning set forth in Section 3.18
of the PC Repurchase Agreement. 
 “Property” means any right or interest in or to property of any kind whatsoever, whether
real, personal or mixed and whether tangible or intangible. 
 “Prospective Owner” shall have the meaning set forth in
Section 3.9(a) of the Trust Agreement. 
 “PTCE” has the meaning set forth in Section 6.5(k) of the Base
Indenture. “Purchase Date” means, subject to the satisfaction of the conditions precedent set forth in Article IV of the PC Repurchase Agreement, (i) the 25th day of such month (or, if such 25th day is not a Business
Day, the next Business Day following such 25th day) or (ii) each calendar week, the second (2nd) Business Day of each such week (or if any such date is not a Business Day, the next succeeding Business Day) following one (1) Business
Day’s written notice from PMC, as Repo Seller, to the Issuer, as Repo Buyer, and the Administrative Agent, in each case on which a Transaction is entered into by the Issuer, as Repo Buyer, pursuant to the PC Repurchase Agreement or such other
mutually agreed upon date as more particularly set forth in the PC Repurchase Agreement. 
 “Purchase
Price” means the price at which each Purchased Asset (or portion thereof) is transferred by PMC, as Repo Seller, to the Issuer, as Repo Buyer, which shall equal: 

(a) on the Purchase Date, the product of (1) the Purchase Price Percentage and (2) the applicable Market Value; and 

  
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 (b) on any day after the Purchase Date, the amount determined under the immediately
preceding clause (a) increased by the amount of any Margin Excess pursuant to Section 2.05(d) of the PC Repurchase Agreement and decreased by the sum of (i) any Repurchase Price or Required Payments paid pursuant to
Section 2.03 of the PC Repurchase Agreement, and (ii) the amount of Consideration transferred by PMC, as Repo Seller, to the Issuer, as Repo Buyer, pursuant to Section 2.05(a) of the PC Repurchase Agreement equal to the sum of
(x) any cash, (y) the principal amount of any Additional Note Payment with respect to the Variable Funding Note and (z) the amount of any reduction in the Owner Trust Certificate, to the extent provided in Section 2.05 the PC
Repurchase Agreement. 
 “Purchase Price Percentage” has the meaning set forth in Section 1 of the PC Repo Pricing
Side Letter. 
 “Purchased Assets” means the collective reference to Participation Certificates together with the
Repurchase Assets related to such Participation Certificates. For the sake of clarity, notwithstanding that related MSRs are pledged, and not sold, to the Issuer, as Repo Buyer, under the PC Repurchase Agreement, such MSRs will nevertheless be
included herein as Purchased Assets. 
 “Ratings Effect” means a reduction, qualification with negative implications or
withdrawal of any then current rating of any Outstanding Notes by an applicable Note Rating Agency (other than as a result of the termination of such Note Rating Agency). 

“Record Date” means, for the interest or principal payable on any Note on any applicable Payment Date or Interim Payment
Date, (i) for a Book Entry Note, the last Business Day before such Payment Date or Interim Payment Date, as applicable, and (ii) for a Definitive Note, the last day of the month preceding such Payment Date or Interim Payment Date, as
applicable, unless otherwise specified in the related Indenture Supplement. 
 “Records” means all instruments, agreements
and other books, records, and reports and data generated by other media for the storage of information maintained by PMC, or any other person or entity with respect to the Purchased Assets or any other Repurchase Assets. 

“Redemption Amount” means, with respect to a redemption of any Series or Class of Notes by the Issuer pursuant to
Section 13.1 of the Base Indenture or pursuant to the related Indenture Supplement, an amount, which when applied together with other Available Funds pursuant to Section 4.5 of the Base Indenture, shall be sufficient to pay an amount equal
to the sum of (i) the Note Balance of all Outstanding Notes of such Series or Class as of the applicable Redemption Payment Date or Redemption Date, (ii) all accrued and unpaid interest on the Notes of such Series or Class through the day
prior to such Redemption Payment Date or Redemption Date, (iii) any and all amounts allocable to such Series or Class and then owing or owing in connection with such redemption to the Indenture Trustee or the Securities Intermediary, from the Issuer
pursuant to the terms hereof, and (iv) any and all other amounts allocable to such Series or Class then due and payable under the Indenture (including all accrued and unpaid Default Supplemental Fees or Step-Up Fees on the Notes of such Series
or Class through the day prior to such Redemption Payment Date or Redemption Date and any Specified Call Premium Amount, if any) and, in the case of redemption of all Outstanding Notes, sufficient to authorize the satisfaction and discharge of this
Base Indenture pursuant to Section 7.1 of the Base Indenture. 

  
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 “Redemption Date” has the meaning set forth in Section 13.1 of the
Base Indenture. 
 “Redemption Notice” has the meaning set forth in Section 13.2 of the Base Indenture. 

“Redemption Payment Date” has the meaning set forth in Section 13.1 of the Base Indenture. 

“Redemption Percentage” means, for any Class, 10% or such other percentage set forth in the related Indenture Supplement.

 “Register” has the meaning set forth in Section 9.02(a) of the PC Repurchase Agreement. 

“Regulation AB” means Subpart 229.1100 – Asset Backed Securities (Regulation AB), 17 C.F.R. §§ 229.1100
229.1125, as such may be amended from time to time, and subject to such clarification and interpretation as have been provided by the U.S. Securities and Exchange Commission or by the staff of the U.S. Securities and Exchange Commission, or as may
be provided by the U.S. Securities and Exchange Commission or its staff from time to time. 
 “Regulation RR” means
regulations required under Section 15G of the 1934 Act, added pursuant to Section 941(b) of the Dodd-Frank Wall Street Reform and Consumer Protection Act. 

“Regulation S” means Regulation S promulgated under the 1933 Act or any successor provision thereto, in each case as the same
may be amended from time to time; and all references to any rule, section or subsection of, or definition contained in, Regulation S means such rule, section, subsection, definition or term, as the case may be, or any successor thereto. 

“Regulation S Definitive Note” has the meaning set forth in in Section 5.2(c)(ii) of the Base Indenture. 

“Regulation S Global Note” has the meaning set forth in Section 5.2(c)(ii) of the Base Indenture. 

“Regulation S Note” has the meaning set forth in Section 5.2(c)(ii) of the Base Indenture. 

“Regulation S Note Transfer Certificate” has the meaning set forth in Section 6.5(i)(ii) of the Base Indenture. 

  
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 “Related Security” means with respect to any Asset, (a) all security
interests or Liens and property subject thereto from time to time, if any, purporting to secure payment of such Asset, whether pursuant to the related Servicing Contract related to such Asset or otherwise, together with all financing statements
covering any collateral securing such Asset; (b) all guarantees, indemnities, letters of credit, insurance or other agreements or arrangements of any kind from time to time supporting or securing payment of such Asset whether pursuant to the
related Servicing Contract related to such Asset or otherwise; and (c) any and all Proceeds of the foregoing. 
 “REO
Property” means a Mortgaged Property in which an owner of the related Mortgage Loan has acquired title to such Mortgaged Property through foreclosure or by deed in lieu of foreclosure. 

“Repo Buyer” means the purchaser under a repurchase agreement. With respect to the PMH Repurchase Agreement, PMC is the Repo
Buyer. With respect to the PC Repurchase Agreement, the Issuer is the Repo Buyer. With respect to the Series 2017-VF1 Repurchase Agreement, theeach VFN Repo Buyer is thea Repo Buyer. 
 “Repo Seller” means the seller under a repurchase agreement.
With respect to the PMH Repurchase Agreement, PMH is the Repo Seller. With respect to the PC Repurchase Agreement, PMC is the Repo Seller. With respect to the Series 2017-VF1 Repurchase Agreement, PMC is the Repo Seller. 

“Repurchase Assets” has the meaning set forth in Section 4.02(a) of the PC Repurchase Agreement. 

“Repurchase Date” means the earlier of (i) the Termination Date or (ii) the date requested by PMC, as Repo Seller,
on which the Repurchase Price is paid pursuant to Section 2.03 of the PC Repurchase Agreement. 
 “Repurchase Price”
means the price at which Purchased Assets are to be transferred from the Issuer, as Repo Buyer, to PMC, as Repo Seller (other than the MSRs, which are pledged, and not sold, to the Issuer, as Repo Buyer), upon termination of a Transaction, which
will be determined in each case (including Transactions terminable upon demand) as the sum of the Purchase Price for such Purchased Assets and the accrued but unpaid Price Differential as of the date of such determination. 

“Request for Approval for Transfer” means Form 629 to the Fannie Mae Guide (Request for Approval for Servicing or
Subservicing Transfer) as required by Chapter A2-7-3 of the Fannie Mae Guide for one Fannie Mae approved servicer to transfer its responsibility for servicing or subservicing any mortgage loans and/or acquired properties to another servicer. 

“Required Available Funds” means an amount that, in connection with each Funding Date, shall remain on deposit in the
Collection and Funding Account, which amount shall equal (i) the amounts payable in respect of Fees and invoiced or regularly occurring expenses payable from Available Funds on the next Payment Date, plus (ii) all accrued and unpaid
interest due on the Notes on the next Payment Date following such Funding Date, plus (iii) all amounts required to be deposited into each Series Reserve Account on the next Payment Date, plus (iv) all amounts required to be
deposited into the Expense Reserve Account on the next Payment Date, plus (v) all accrued and unpaid Default Supplemental Fees, if any, due on the Notes on the next Payment Date following such Funding Date, plus (vi) all
accrued and unpaid Step-Up Fees, if any, due on the Notes on the next Payment Date following such Funding Date. 

  
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 “Required Payment” means, with respect to any Purchased Asset, the amounts
required to be paid by PMC, as Repo Seller, to the Issuer, as Repo Buyer, on an MRA Payment Date, equal to any “Scheduled Principal Payment Amounts” due on such MRA Payment
Date under the Indenture. 
 “Required Reserve Amount” means, with respect to any MRA Payment Date, the amounts
estimated to be due and owing by PMC, as Repo Seller, pursuant Sections 2.03, 2.04 or 
 2.05 of the PC Repurchase Agreement. 

“Requirement of Law” means, with respect to any Person, any law, treaty, rule or regulation or determination of an
arbitrator, a court or other Governmental Authority, applicable to or binding upon such Person or any of its property or to which such Person or any of its property is subject. 

“Responsible Officer” means, 

(i) When used with respect to the Indenture Trustee, the Calculation Agent, the Note Registrar, the Securities Intermediary or
the Paying Agent, an Indenture Trustee Authorized Officer; 
 (ii) when used with respect to the Issuer, any Issuer
Authorized Officer who is an officer of the Issuer or is an officer of the Administrator of the type referred to in clause 

(iii) below; and 

(iii) when used with respect to the Servicer or the Administrator, the chief executive officer, the chief financial officer,
any vice president or any managing director of the Servicer or the Administrator, as the case may be. 
 “Restricted
Cash” has the meaning set forth in Section 1 of the PC Repo Pricing Side Letter. 
 “Restricted Payment”
means, with respect to any Person, collectively, all dividends or other distributions of any nature (cash, securities, assets or otherwise), and all payments, by virtue of redemption or otherwise, on any class of equity securities (including,
warrants, options or rights therefor) issued by such Person, which may hereafter be authorized or outstanding and any distribution in respect of any of the foregoing, whether directly or indirectly. 

“Retained Excess Spread Participation Agreement” means the Retained Spread Participation Agreement, dated as of
December 20, 2017, between PMC, as company, and PMC, as initial participant. 
 “Retained MSR Excess Spread” has the
meaning set forth in the Retained Excess Spread Participation Agreement. 

  
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 “Retained MSR Excess Spread Collections” shall have the meaning set forth
in the Retained Excess Spread Participation Agreement. 
 “Retained MSR Excess Spread PC” means the Participation
Certificate issued pursuant to the Retained Excess Spread Participation Agreement which evidences the Participation Interest in the Retained MSR Excess Spread. 

“Retained MSR Portfolio” has the meaning set forth in the Retained Excess Spread Participation Agreement. 

“Retained MSR Portfolio Mortgage Loan” means a Mortgage Loan that is included in the Retained MSR Portfolio. 

“Retained Note” has the meaning set forth in Section 14.3 of the Base Indenture. 

“Revolving Period” means, for any Series or Class of Notes, the period of time beginning on, and including, the related
Issuance Date and ending on, but excluding, commencement of the Early Amortization Period or the Full Amortization Period. For the avoidance of doubt, the occurrence of an Advance Rate Trigger Event shall not cause the termination of the Revolving
Period. 
 “Right of Assumption” means the Indenture Trustee’s right to request that the Indenture Trustee, if it is
an Eligible Servicer, or a proposed new servicer, if it is an Eligible Servicer, be retained to service the Subject Mortgages, all on the terms and conditions set forth in the Acknowledgment Agreement. 

“Rule 144A” means Rule 144A promulgated under the 1933 Act. 

“Rule 144A Definitive Note” has the meaning set forth in Section 5.2(c)(i) of the Base Indenture. 

“Rule 144A Global Note” has the meaning set forth in Section 5.2(c)(i) of the Base Indenture. 

“Rule 144A Note” has the meaning set forth in Section 5.2(c)(i) of the Base Indenture. 

“Rule 144A Note Transfer Certificate” has the meaning set forth in Section 6.5(i)(iii) of the Base Indenture. 

“S&P” means Standard & Poor’s Ratings Services, a Standard & Poor’s Financial Services LLC
business, or any successor thereto. 
 “Sale” means any sale of any portion of the Trust Estate pursuant to
Section 8.15 of the Base Indenture. 

  
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 “Sanctions” has the meaning set forth in Section 10.1(j) of the Base
Indenture. “Schedules of Mortgages” means each Form 2005 (Guaranteed Mortgage-Backed Securities Program Schedule of Mortgages) for PMC delivered to Fannie Mae or its designee from time to time as provided in the Fannie Mae Guide.

 “Scheduled Principal Payment Amount” means, for each Series of Notes and each Payment Date, as and to the extent
specified in the related Indenture Supplement. 
 “SDQ Event” means the Servicer SDQ Rate for two (2) consecutive
months is greater than 90% of the upper threshold of the related Level. 
 “SDQ Factor” means, for a Level, the number of
basis points set out in the definition of Stop-Loss Cap as the SDQ Factor for such Level. 
 “SDQ Loans” means loans for
which Servicer owns the Fannie Mae servicing rights that are 90 days or more delinquent or in foreclosure. 
 “SEC” means
the United States Securities and Exchange Commission, or any successor thereto. 
 “Secretary of State” means the Secretary
of State of the State of Delaware. “Secured Party” has the meaning set forth in the Granting Clause of the Base Indenture. 

“Securities Account” has the meaning set forth in Section 8-501(a) of the UCC. “Securities
Intermediary” has the meaning set forth in Section 8-102(a)(14) of the UCC, and where appropriate, shall mean Citibank or its successor, in its capacity as securities intermediary pursuant to Section 4.9 of the Base Indenture.

 “Security Entitlement or Securities Entitlements” has the meaning set forth in Section 8-102(a)(17) of the
UCC. 
 “Security Interest” means the security interest in the Collateral Granted to the Indenture Trustee pursuant to the
Granting Clause. 
 “Seller Termination Option” means (a) (i) the Issuer, as Repo Buyer, has or shall incur costs
in connection with those matters provided for in Section 2.09 or 2.10 of the PC Repurchase Agreement and (ii) the Issuer, as Repo Buyer, requests that PMC, as Repo Seller, pay to the Issuer, as Repo Buyer, those costs in connection
therewith or (b) the Issuer, as Repo Buyer, has declared in writing that an event described in Section 5.02(h)(A) of the PC Repurchase Agreement has occurred. 

“Series” means one or more Class or Classes of Notes assigned a series designation, as specified in the related Indenture
Supplement. 

  
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“Series 2017-VF1 Notes” means the Notes issued
pursuant to the Series 2017-VF1 Indenture Supplement. 
 “Series
2017-VF1 Indenture Supplement” means the Indenture Supplement, dated as of December 20, 2017, by and among the Issuer, the Indenture Trustee, the Calculation Agent, the Paying Agent, the Securities Intermediary, PMC, as Administrator
and as Servicer, and CSFB, as Administrative Agent. 

“Series
2017-VF1 Notes” means the Notes issued pursuant to the Series 2017-VF1 Indenture Supplement. 

“Series 2017-VF1 Repurchase Agreement” means the Master Repurchase Agreement, dated as of December 20, 2017, among PMC,
as Repo Seller, the VFN Repo
BuyerBuyers
, as Repo
BuyerBuyers
, and CSFB, as Administrative Agent, related to the Series 2017-VF1 Notes. 
 “Series 2018-FT1 Indenture Supplement” means the Indenture Supplement, dated as of April 25, 2018, by and
among the Issuer, the Indenture Trustee, the Calculation Agent, the Paying Agent, the Securities Intermediary, PMC, as Administrator and as Servicer, and CSFB, as Administrative Agent. 

“Series
2018-FT1 Notes” means the Notes issued pursuant to the Series 2018-FT1 Indenture Supplement. 

“Series Allocation Percentage” means, for any Series as of any date of determination: 

(i) as of any date prior to the Full Amortization Period, the percentage obtained by dividing (a) the Series Invested
Amount for such Series by (b) the aggregate of the Series Invested Amounts for all Outstanding Series; and 
 (ii) as of any date during
the Full Amortization Period, the percentage obtained by dividing (a) the Series Invested Amount for such Series as of the first day of the Full Amortization Period by (b) the aggregate of the Series Invested Amounts as of the first day of
the Full Amortization Period for all Outstanding Series. 
 “Series Available Funds” means, for any Series as of any
Payment Date occurring during the Full Amortization Period, after paying any amounts owed under Sections 4.5(a)(2)(i), (ii) and (iii) of the Base Indenture, the sum of the following: 

(i) such Series’ Series Allocation Percentage of any income from Permitted Investments in the Collection and Funding
Account; 
 (ii) such Series’ Series Allocation Percentage of all Collections on deposit in the Trust Accounts that are
not Series Reserve Accounts (prior to giving effect to any payments on such Payment Date); 

  
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 (iii) such Series’ Series Allocation Percentage of any other funds of
the Issuer that the Issuer (or the Administrator on behalf of the Issuer) identifies to the Indenture Trustee in writing to be treated as “Available Funds” as of such Payment Date; and 

(iv) such other amounts designated as Series Available Funds for the benefit of such Series of Notes in the related Indenture
Supplement. 
 “Series Invested Amount” means, the VFN Series Invested Amount or the Term Note Series Invested Amount, as
applicable. 
 “Series Required Noteholders” means, for any Series (a) if not specified in the related Indenture
Supplement, Noteholders of any Series constituting the Majority Noteholders of such Series and (b) if specified in the related Indenture Supplement, as set forth in the related Indenture Supplement. 

“Series Reserve Account” means an account established for each Series which shall be a non-interest bearing trust account
which is an Eligible Account, established and maintained pursuant to Sections 4.1 and 4.6 of the Base Indenture, and in the name of the Indenture Trustee and identified by each relevant Series. 

“Series Reserve Required Amount” means with respect to any Series of Notes, if applicable, the “Series Reserve Required
Amount” set forth in the Indenture Supplement for such Series. 
 “Servicer” means PMC in all its capacities as a
Fannie Mae approved seller/servicer under the Fannie Mae Lender Contract and as servicer under the Fannie Mae Lender Contract of the related Mortgage Loans, and any successor servicer approved by Fannie Mae under the Fannie Mae Lender Contract. 

“Servicer
 SDQ Rate” means (i) the result of (x) the unpaid principal balance of SDQ Loans, divided by (y) the total unpaid principal balance of Mortgage Loans, in each case, determined
as of the end of the most recently ended calendar month, multiplied by (ii) 100, expressed as a percentage;
provided, however, that in conformance with the calculation of the Servicer SDQ Rate in the Acknowledgment Agreement, following the date the Series 2018-FT1 Notes are no longer Outstanding, only 30% of the unpaid principal balance of Forbearance
Loans will count in the calculation of “SDQ Loans” for purposes of calculating the “Servicer SDQ Rate”. 

“Servicer Termination Event” means, with respect to the Fannie Mae Lender Contract, the occurrence of any events or
conditions, and the passage of any cure periods and giving to and receipt by the Servicer of any required notices, as a result of which any Person has the current right to terminate the Servicer as servicer or issuer, as applicable, under the Fannie
Mae Lender Contract. 
 “Servicer’s Fannie Mae Portfolio” means all mortgage loans delivered, and all mortgage loans
and properties serviced, by the Servicer for Fannie Mae through the date, if any, Fannie Mae terminates the Servicing Rights. 

  
 189 

 “Servicing Contract” means, the Mortgage Selling and Servicing Contract,
the applicable Master Agreements between Purchaser and Fannie Mae, and the applicable Schedules of Mortgages (Form 2005), and any and all instruments, agreements, invoices or other writings, which give rise to or otherwise evidence any of the MSRs.
Without limiting the generality of the foregoing, any reference herein to a “Servicing Contract” shall be deemed to include the Acknowledgment Agreement. 

“Servicing Fee” means, with respect to any Mortgage Loan, the aggregate monthly fee payable to the Servicer in servicing such
Mortgage Loan pursuant to the Fannie Mae Lender Contract, not including any Ancillary Income or Advance Reimbursement Amounts. 

“Servicing Rights” means the Servicer’s rights under the Fannie Mae Lender Contract. 

“Servicing Standards” has the meaning set forth in Section 10.2(i) of the Base Indenture. 

“Servicing Transfer Consent Notice” means Fannie Mae’s consent to the post-delivery transfer of servicing to PMC from a
transferor servicer under the terms set forth in the Fannie Mae Guide, including any additional terms, conditions and provisions set forth in such consent. 

“Shortfall Amount” has the meaning set forth in Section 4.5 of the Base Indenture. “Similar Law” has
the meaning set forth in Section 6.5(k) of the Base Indenture. “Sold MSR Excess Spread” has the meaning set forth in the Excess Spread Participation Agreement. 

“Sold MSR Excess Spread PC” has the meaning set forth in the Excess Spread Participation Agreement. 

“Sold MSR Portfolio” has the meaning set forth in the Excess Spread Participation Agreement. 

“Sold MSR Portfolio Mortgage Loan” means a Mortgage Loan that is included in the Sold MSR Portfolio. 

“Specified Call Premium Amount” has the meaning set forth in the related Indenture Supplement, if applicable. 

“STAMP” has the meaning set forth in Section 6.5(d) of the Base Indenture. “Stated Maturity Date”
means, for each Class of Notes, the date specified in the Indenture Supplement for such Note as the fixed date on which the outstanding principal and all accrued interest for such Series or Class of Notes is due and payable. 

  
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 “Statutory Trust Statute” means Chapter 38 of Title 12 of the Delaware
Code, 12 Del. C. § 3801 et seq. 
 “Step-Up Fee” has the meaning set forth in the related Indenture Supplement, if
applicable. if applicable. 
 “Step-Up Fee Rate” has the meaning set forth in the related Indenture Supplement. 

“Stop-Loss Cap” means, as of any date of determination during the Stop-Loss Cap Period, and subject to the provisions below,

 (A) so
long as the Series 2018-FT1 Notes are Outstanding, the greater of (1) the calculation of the Stop-Loss Cap pursuant to clause (B) of this definition or (2) the greater of:
(i) $250,000, and (ii) the sum of (a) the result of (x) the unpaid principal balance of Non-SDQ Loans as of such date multiplied by (y) the applicable Non-SDQ Factor shown in the chart below (as adjusted from time to time),
plus (b) the result of (x) the unpaid principal balance of SDQ Loans as of such date multiplied by (y) the applicable SDQ Factor shown in the chart below (as adjusted from time to time). 

 

							
	 “Level”
	  	If the Servicer SDQ Rate is:	  	Then, the “Non-SDQ
Factor” is:	  	And the “SDQ Factor” is:
	 1
	  	0% - 2.0%	  	10 bps	  	50 bps
	 2
	  	2.01% - 4.0%	  	12 bps	  	75 bps
	 3
	  	4.01% - 6.0%	  	14 bps	  	100 bps
	 4
	  	6.01% - 10.0%	  	17 bps	  	150 bps
	 5
	  	10.01% - 15.0%	  	20 bps	  	200 bps
	 6
	  	15.01% and over	  	25 bps	  	300 bps

and
(B) following the date the Series 2018-FT1 Notes are no longer Outstanding, the greater of: (i) $250,000, and (ii) the sum of (a) the result of (x) the unpaid principal balance of Non-SDQ Loans as of such date multiplied by
(y) the applicable Non-SDQ Factor shown in the chart below (as adjusted from time to time pursuant to Section 12.2 of this Base Indenture to conform with the Acknowledgment Agreement), plus (b) the result of (x) the unpaid
principal balance of SDQ Loans as of such date multiplied by (y) the applicable SDQ Factor shown in the chart below (as adjusted from time to time pursuant to Section 12.2 of this Base Indenture to conform with the Acknowledgment
Agreement). For purposes of calculating the Stop-Loss Cap under this paragraph (B), the Servicer SDQ Rate and the unpaid principal balance of SDQ Loans with respect to Mortgage Loans in the Servicer’s Fannie Mae portfolio, only 30% of the
unpaid principal balance of Forbearance Loans will be multiplied by the applicable “SDQ Factor”, while the remaining 70% of the unpaid principal balance of Forbearance Loans will be considered Non SDQ Loans and multiplied by the applicable
“Non SDQ Factor”. For the avoidance of doubt, if a borrower reinstates or resolves any Forbearance Loan and such loan subsequently becomes ninety (90) days or more delinquent, the full unpaid principal balance of such SDQ Loan will be
multiplied by the applicable “SDQ Factor” and the 30% factor shall not be applicable unless additional forbearance of such loan under the CARES ACT or any replacement thereof is permitted by Fannie Mae. 

  
 191 

							
	“Level”	  	If the Servicer SDQ Rate is:	  	Then, the “Non-SDQ
Factor” is:	  	And the “SDQ Factor” is:
	
1
	  	0% - 2.0%	  	11 bps	  	62 bps
	
2
	  	2.01% - 4.0%	  	13 bps	  	93 bps
	
3
	  	4.01% - 6.0%	  	15 bps	  	125 bps
	
4
	  	6.01% - 10.0%	  	18 bps	  	187 bps
	
5
	  	10.01% - 15.0%	  	21 bps	  	250 bps
	
6
	  	15.01% and over	  	25 bps	  	375 bps

 “Stop-Loss Cap Period” means the period beginning on the effective date of the Acknowledgment
Agreement and terminating on the fifth (5th) anniversary of the effective date of the Acknowledgment Agreement, subject to any extension of such period pursuant to the terms of the Acknowledgment Agreement as agreed by Fannie Mae in its sole
and absolute discretion. 
 “Stop-Loss Cap Required Amount” means with respect to any Series of Notes, if applicable, the
“Stop-Loss Cap Required Amount” set forth in the Indenture Supplement for such Series. 
 “Subject Mortgages”
means all loans which are now being serviced or which may later be serviced by the Servicer pursuant to the Fannie Mae Lender Contract. 

“Subservicer” means, with respect to any MSR, any subservicer engaged by the Servicer to subservice the Mortgage Loans related
to such MSR so long as such subservicing arrangement with respect to such MSR is subject to an Eligible Subservicing Agreement. 

“Subservicer Side Letter Agreement” the Subservicer Acknowledgment Agreement, dated as of December 20, 2017, among PMC,
PLS, the Administrative Agent and the Indenture Trustee. 

  
 192 

 “Subservicer Termination Event” occurs when: 

(i) the Servicer has terminated the Person acting as Subservicer and has not either (a) taken over the servicing of such Mortgage Loans
itself in conformity with Section 10.2(y) of the Base Indenture or (b) (i) identified a replacement within thirty (30) days that meets the criteria of an Eligible Subservicer and (ii) replaced the Subservicer with such
Eligible Subservicer within sixty (60) days under an Eligible Subservicing Agreement and an agreement in form and substance similar to the Subservicer Side Letter Agreement; or 

(ii) in the case of PLS, if (a) PLS ceases to be a seller/servicer approved by Fannie Mae or a lender approved by HUD, (b) PLS has
been suspended as a seller/servicer by Fannie Mae or HUD on and after the date on which PLS first obtained such approval from Fannie Mae or HUD, as applicable or (c) PLS is under review or investigation outside of due course and has knowledge
of imminent or future investigation outside of due course, by Fannie Mae or HUD on and after the date on which PLS became a Fannie Mae or HUD approved seller/servicer or lender, as the context may require, and the Servicer has not either
(x) taken over the servicing of such Mortgage Loans itself in conformity with Section 10.2(y) of the Base Indenture or (y) (i) identified a replacement within thirty (30) days that meets the criteria of an Eligible
Subservicer and (ii) replaced PLS with such Eligible Subservicer within sixty (60) days under an Eligible Subservicing Agreement and an agreement in form and substance similar to the Subservicer Side Letter Agreement. 

“Subordination of Interest Agreement” means the Third Amended and Restated Subordination of Interest Agreement, dated as of
December 20, 2017, among Fannie Mae, the Guarantor, PMC, PMH and the Indenture Trustee. 
 “Subsidiary” means, with
respect to any Person, any corporation, partnership, limited liability company or other entity of which at least a majority of the securities or other ownership interests having by the terms thereof ordinary voting power to elect a majority of the
board of directors or other persons performing similar functions of such corporation, partnership or other entity (irrespective of whether or not at the time securities or other ownership interests of any other class or classes of such corporation,
partnership or other entity shall have or might have voting power by reason of the happening of any contingency) is at the time directly or indirectly owned or controlled by such Person or one or more Subsidiaries of such Person or by such Person
and one or more Subsidiaries of such Person. 
 “Taxes” has the meaning assigned to such term in Section 2.09(a) of the
PC Repurchase Agreement. 
 “Term Note” means notes of any Series or Class designated as “Term
Notes” in the related Indenture Supplement. 
 “Term Note Series Available Funds” means, for each Series of Term Notes
as of any Payment Date occurring during the Full Amortization Period, after paying any amounts owed under the prioritySections 4.5(a)(2)(i) and 4.5(a)(2)(ii) of payments under the Base Indenture, the sum of the following: 

  
 193 

 (i) such Series’ Series Allocation Percentage of any income from
Permitted Investments in the Collection and Funding Account; 
 (ii) such Series’ Series Allocation Percentage of all
Collections on deposit in the Trust Accounts that are not Series Reserve Accounts (prior to giving effect to any payments on such Payment Date); 

(iii) such Series’ Series Allocation Percentage of any other funds of the Issuer that the Issuer (or the Administrator on
behalf of the Issuer) identifies to the Indenture Trustee in writing to be treated as “Available Funds” as of such Payment Date; and 

(iv) such other amounts designated as Term Note Series Available Funds for the benefit of such Series of Term Notes in the
related Indenture Supplement. 
 “Term Note Series Invested Amount” means, as of any date of determination, for any Series
of Term Notes, the highest Class Invested Amount for any Class of Term Notes included in such Series of Term Notes. 
 “Termination
Date” has the meaning set forth in Section 1 of the PC Repo Pricing 
 Side Letter. 

“Total Assets” means PMC’s “Total Assets” as reported in field A240 of the 

Mortgage Banker’s Financial Reporting Form in accordance with the requirements set forth in the Fannie Mae Lender Contract. 

“Total Collections” means, 

(i) With respect to any Interim Payment Date, all Collections on the Participation Certificates or Eligible Securities
received during the related Collection Period and any other funds of the Issuer that the Issuer (or the Administrator on behalf of the Issuer) identifies to the Indenture Trustee to be treated as “Total Collections” for such Interim
Payment Date; and 
 (ii) with respect to any Payment Date, (A) all Collections on the Participation Certificates or
Eligible Securities received during the related Collection Period, plus (B) any income from Permitted Investments in Trust Accounts that have been established for the benefit of all Series of Notes, plus (C) any other funds of the Issuer
that the Issuer (or the Administrator on behalf of the Issuer) identifies to the Indenture Trustee to be treated as “Total Collections” for such Payment Date. 

“Total Excess Spread Schedule” means Schedule 4 to the PC Repurchase Agreement, as updated from time to time by PMC, as Repo
Seller. 
 “Transaction” has the meaning assigned to such term in the recitals to the PC Repurchase Agreement. 

  
 194 

 “Transaction Documents” means, collectively, the Indenture, each Note
Purchase Agreement, the PC Repurchase Agreement, the Series 2017-VF1 Repurchase Agreement, the Participation Agreements, the PC Repo Guaranty, the PMH Repo Guaranty, the VFN Repo Guaranty, the Acknowledgment Agreement, the PMH Subordination
Agreement, the Fee Letter, the Participation Certificate Schedule, all Notes, the Trust Agreement, the Administration Agreement, each Indenture Supplement, the MSR Valuation Agent Agreement, the Disposition Management Agreement, if any, the
Dedicated Account Control Agreement and each of the other documents, instruments and agreements entered into on the date hereof and thereafter in connection with any of the foregoing or the transactions contemplated thereby. 

“Transaction Notice” has the meaning assigned to such term in Section 2.02 of the PC Repurchase Agreement. 

“Transaction Register” has the meaning assigned to such term in Section 9.03(b) of the PC Repurchase Agreement. 

“Transfer” has the meaning set forth in Section 6.5(h) of the Base Indenture. It is expressly provided that the term
“Transfer” in the context of the Notes includes, without limitation, any distribution of the Notes by (i) a corporation to its shareholders, (ii) a partnership to its partners, (iii) a limited liability company to its
members, (iv) a trust to its beneficiaries or (v) any other business entity to the owners of the beneficial interests in such entity. 

“Transfer/Engagement Request” means a request that Fannie Mae transfer the Servicing Rights or New Servicing Rights, as
applicable, to the Indenture Trustee or a proposed new servicer Agreement. 
 “Transferee” has the meaning set forth in
Section 9.02(a) of the PC Repurchase 
 “Treasury Regulations” means regulations, including proposed or temporary
regulations, promulgated under the Code. References herein to specific provisions of proposed or temporary regulations shall include analogous provisions of final Treasury Regulations or other successor Treasury Regulations. 

“Trust” shall mean PMT ISSUER TRUST—FMSR, the Delaware statutory trust established pursuant to the Original Trust
Agreement and the Certificate of Trust and continued hereby which shall carry on its business operations under the name of “PMT ISSUER TRUST—FMSR”. 

“Trust Account or Trust Accounts” means, individually, any of the Collection and Funding Account, the Note Payment
Account, the Expense Reserve Account or the Series Reserve Account and any other account required under any Indenture Supplement, if any, and collectively, all of the foregoing. 

“Trust Agreement” means the trust agreement dated as of November 22, 2017 (the “Original Trust
Agreement”), as amended and restated by the Amended and Restated Trust Agreement, dated the Closing Date, by and between PMC and the Owner Trustee. 

  
 195 

 “Trust Certificate” means a certificate substantially in the form set forth
in Exhibit A of the Trust Agreement. 
 “Trust Estate” means the trust estate established under this Base Indenture for the
benefit of the Noteholders, which consists of the property described in the Granting Clause, to the extent not released pursuant to Section 7.1 of the Base Indenture. 

“Trust Officer” means any officer of the Owner Trustee who is authorized to act for the Owner Trustee and whose name appears
on a list of such officers furnished by the Owner Trustee to the Administrator and Indenture Trustee, as such list may be amended and supplemented from time to time. 

“Trust Property” means the property, or interests in property, constituting the Trust Estate from time to time. 

“UCC” or “Uniform Commercial Code” means the Uniform Commercial Code, as in effect in the relevant
jurisdiction. 
 “United States and U.S.” means the United States of America. 

“United States Person” means (i) A citizen or resident of the United States, (ii) a corporation or partnership (or
entity treated as a corporation or partnership for United States federal income tax purposes) created or organized in or under the laws of the United States, any one of the states thereof or the District of Columbia, (iii) an estate the income
of which is subject to United States federal income taxation regardless of its source or (iv) a trust if a court within the United States is able to exercise primary supervision over the administration of such trust, and one or more such United
States Persons have the authority to control all substantial decisions of such trust (or, to the extent provided in applicable Treasury regulations, certain trusts in existence on August 20, 1996 which are eligible to elect to be treated as
United States Persons). 
 “U.S. Anti-Money Laundering Laws” has the meaning set forth in Section 10.1(i) of the Base
Indenture. 
 “USDA” means the Rural Housing Service of the Rural Development Agency of the United States Department of
Agriculture, or any successor. 
 “USDA Loan” means a Mortgage Loan which is guaranteed by USDA, as evidenced by a USDA
Loan Guarantee Document. 
 “USDA Loan Guarantee Document” means a loan guarantee document issued by USDA in accordance
with 7 CFR § 3555.107. 
 “VA” means the U.S. Department of Veterans Affairs, an agency of the United States of
America, or any successor thereto including the Secretary of Veterans Affairs. 

  
 196 

 “VA Loan” means a Mortgage Loan which is subject of a VA Loan Guaranty
Agreement as evidenced by a loan guaranty certificate, or a Mortgage Loan which is a vendor loan sold by the VA. 
 “VA Loan
Guaranty Agreement” means the obligation of the United States to pay a specific percentage of a Mortgage Loan (subject to a maximum amount) upon default of the mortgagor pursuant to the Servicemen’s Readjustment Act. 

“Variable Funding Note or VFN” means any Note of a Series or Class designated as “Variable Funding Notes” in
the related Indenture Supplement. 
 “VFN Draw” means, for any Funding Date, the amount to be borrowed on such date in
relation to any VFNs pursuant to Section 4.3(b) of the Base Indenture. 
 “VFN Draw Date” means any Funding Date on
which a VFN Draw is to be made pursuant to Section 4.3(b) of the Base Indenture. 
 “VFN Funding Source” means, with
respect to a VFN that is not subject to a repurchase agreement, the VFN Noteholder; with respect to a VFN that is subject to a repurchase agreement, the party that is the Repo Seller under such repurchase agreement. 

“VFN Noteholder” means the Noteholder of a VFN. 

“VFN Note Balance Adjustment Request” has the meaning set forth in Section 4.3(b)(i) of the Base Indenture. 

“VFN Principal Balance” means, any date, for any VFN or for any Series or Class of VFNs, as the context requires, the Note
Balance thereof as of the opening of business on the first day of the then-current Interest Accrual Period for such Series or Class minus all amounts previously paid during such Interest Accrual Period on such Note with respect to principal
(including any Additional Note Payments paid (or deemed paid) by the owner of the Owner Trust Certificate pursuant to Sections 4.4(b) or 4.5(e) of the Base Indenture plus the amount of any increase in the Note Balance of such Note during such
Interest Accrual Period prior to such date, which amount shall not exceed the Maximum VFN Principal Balance. 
 “VFN Repo
Buyer” has the meaning set forth in Section 2 of the Series 2017-VF1 Indenture Supplement. 
 “VFN Repo
Guaranty” means that certain guaranty, made by the Guarantor in favor of the Repo Buyer, guaranteeing payment to the Repo Buyer of all amounts owing to the Repo Buyer from the Repo Seller pursuant to the Series 2017-VF1 Repurchase
Agreement. 
 “VFN Series Available Funds” means, for each Series of VFNs as of any Payment Date occurring during the Full
Amortization Period, after paying any amounts owed under the
prioritySections 4.5(a)(2)(i) and 4.5(a)(2)(ii)
of payments under the Base Indenture, the sum of the following: 

  
 197 

 (i) such Series’ Series Allocation Percentage of any income from
Permitted Investments in the Collection and Funding Account; 
 (ii) such Series’ Series Allocation Percentage of all
Collections on deposit in the Trust Accounts that are not Series Reserve Accounts (prior to giving effect to any payments on such Payment Date); 

(iii) such Series’ Series Allocation Percentage of any other funds of the Issuer that the Issuer (or the Administrator on
behalf of the Issuer) identifies to the Indenture Trustee in writing to be treated as “Available Funds” as of such Payment Date; and 

(iv) such other amounts designated as VFN Series Available Funds for the benefit of such Series of VFNs in the related
Indenture Supplement. 
 “VFN Series Invested Amount” means, as of any date of determination, for any Series of VFNs, the
highest Class Invested Amount for any Class of VFNs included in such Series of VFNs. 
 “Voting Interests” means the
aggregate voting power evidenced by the Notes, and each Outstanding Note’s Voting Interest within its Series equals the percentage equivalent of the fraction obtained by dividing that Note’s Note Balance by the aggregate Note Balance of
all Outstanding Notes within such Series; provided, however, that where the Voting Interests are relevant in determining whether the vote of the requisite percentage of Noteholders necessary to effect any consent, waiver, request or
demand shall have been obtained, the Voting Interests shall be deemed to be reduced by the amount equal to the Voting Interests (without giving effect to this provision) represented by the interests evidenced by any Note registered in the name of,
or in the name of a Person or entity holding for the benefit of, the Issuer, PMC or any Person that is an Affiliate of any of the Issuer or PMC (except with respect to the Series 2017-VF1 Notes which have been sold by PMC to the VFN Repo BuyerBuyers under the Series 2017-VF1 Repurchase Agreement). The Indenture Trustee shall have no liability for counting a Voting Interest of any Person that is not permitted to be so counted under the Indenture pursuant to
the definition of “Outstanding” unless a Responsible Officer of the Indenture Trustee has actual knowledge that such Person is the Issuer or PMC or an Affiliate of either or both of the Issuer and PMC (except with respect to the Series
2017-VF1 Notes which have been sold by PMC to the VFN Repo
BuyerBuyers under the Series 2017-VF1 Repurchase
Agreement). 
 All actions, consents and votes under the terms and provisions of the Indenture (other than under any Indenture
Supplement related to a specific Series) that require a certain percentage of Voting Interests of all Series or any specified Series of Notes, such as the Series Required Noteholders of Series of Notes that are Variable Funding Notes or the Series
Required Noteholders of each Series, as opposed to the Majority Noteholders of all Outstanding Notes shall be deemed by each of the Issuer, the Indenture Trustee, the Administrator, the Servicer, the Administrative Agent and the Noteholders to
require such designated percentage of Voting Interests of each Outstanding Series and, in the event any one specified Series fails to provide the required percentage of Voting Interests with respect to any such action, consent or vote, then such
action, consent or vote shall be deemed by the Issuer, the Indenture Trustee, the Administrator, the Servicer, the Administrative Agent and the Noteholders to be not approved. 

  
 198 

 “Weighted Average Advance Rate” means, on any date of determination, with
respect to all Outstanding Series of Variable Funding Notes, a percentage equal to the weighted average of the Advance Rates for each Series of Variable Funding Notes then Outstanding (weighted based on the VFN Series Invested Amount of each Series
of Variable Funding Notes on such date). With respect to a specific Series of Variable Funding Notes, the “Weighted Average Advance Rate” shall equal the Advance Rate with respect to the Class within such Series of Variable Funding Notes
with the highest Advance Rates. 
 “WSFS” means Wilmington Savings Fund Society, FSB. 

  
 199 

 EXHIBIT B 

BASE INDENTURE (AS AMENDED) 

[Attached] 

  
 Exh. B 

 CONFORMED COPY 

AS OF AMENDMENT NO. 4 

BASE INDENTURE 
 PMT
ISSUER TRUST – FMSR 
 as Issuer 

and 
 CITIBANK, N.A.

 as Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary 

and 
 PENNYMAC CORP.

 as Servicer and Administrator 

and 
 CREDIT SUISSE
FIRST BOSTON MORTGAGE CAPITAL LLC 
 as Administrative Agent 

Dated as of December 20, 2017 

PMT ISSUER TRUST – FMSR 

MSR COLLATERALIZED NOTES, ISSUABLE IN SERIES 

 TABLE OF CONTENTS 

 

							
	 	 	 	  	Page	 
	 Article I
	 	Definitions and Other Provisions of General Application	  	 	5	 
			
	 Section 1.1.
	 	Definitions	  	 	5	 
	 Section 1.2.
	 	Interpretation	  	 	5	 
	 Section 1.3.
	 	Compliance Certificates and Opinions	  	 	6	 
	 Section 1.4.
	 	Form of Documents Delivered to Indenture Trustee	  	 	7	 
	 Section 1.5.
	 	Acts of Noteholders	  	 	7	 
	 Section 1.6.
	 	Notices, etc., to Indenture Trustee, Issuer, Administrator, the Administrative Agent and Note Rating Agencies	  	 	9	 
	 Section 1.7.
	 	Notices to Noteholders; Waiver	  	 	9	 
	 Section 1.8.
	 	Administrative Agent	  	 	11	 
	 Section 1.9.
	 	Effect of Headings and Table of Contents	  	 	12	 
	 Section 1.10.
	 	Successors and Assigns	  	 	12	 
	 Section 1.11.
	 	Severability of Provisions	  	 	12	 
	 Section 1.12.
	 	Benefits of Indenture	  	 	12	 
	 Section 1.13.
	 	Governing Law	  	 	13	 
	 Section 1.14.
	 	Counterparts	  	 	13	 
	 Section 1.15.
	 	Submission to Jurisdiction; Waivers	  			
			
	 Article II
	 	The Trust Estate	  	 	14	 
			
	 Section 2.1.
	 	Contents of Trust Estate	  	 	14	 
	 Section 2.2.
	 	Asset Files	  	 	16	 
	 Section 2.3.
	 	Duties of Custodian with Respect to the Asset Files	  	 	18	 
	 Section 2.4.
	 	Application of Trust Money	  	 	19	 
			
	 Article III
	 	Administration of Participation Certificates; Reporting to Investors	  	 	19	 
			
	 Section 3.1.
	 	Duties of the Calculation Agent	  	 	19	 
	 Section 3.2.
	 	Reports by Administrator and Indenture Trustee	  	 	22	 
	 Section 3.3.
	 	Annual Statement as to Compliance; Notice of Default; Reports	  	 	26	 
	 Section 3.4.
	 	Access to Certain Documentation and Information	  	 	28	 
	 Section 3.5.
	 	Indenture Trustee to Make Reports Available	  	 	30	 
			
	 Article IV
	 	The Trust Accounts; Payments	  	 	31	 
			
	 Section 4.1.
	 	Trust Accounts	  	 	31	 
	 Section 4.2.
	 	Collections and Disbursements of Portfolio Collections by Servicer	  	 	32	 
	 Section 4.3.
	 	Fundings	  	 	33	 
	 Section 4.4.
	 	Interim Payment Dates	  	 	35	 
	 Section 4.5.
	 	Payment Dates	  	 	36	 
	 Section 4.6.
	 	Series Reserve Account; Expense Reserve Account	  	 	41	 
	 Section 4.7.
	 	Collection and Funding Account	  	 	44	 

  
 i 

							
	 Section 4.8.
	 	Note Payment Account	  	 	44	 
	 Section 4.9.
	 	Securities Accounts	  	 	44	 
	 Section 4.10.
	 	Notice of Adverse Claims	  	 	47	 
	 Section 4.11.
	 	No Gross Up	  	 	47	 
	 Section 4.12.
	 	Advance Rate Trigger Event Trigger Period, Early Amortization Period and Full Amortization Period	  	 	47	 
			
	 Article V
	 	Note Forms	  	 	48	 
			
	 Section 5.1.
	 	Forms Generally	  	 	48	 
	 Section 5.2.
	 	Forms of Notes	  	 	49	 
	 Section 5.3.
	 	Reserved	  	 	49	 
	 Section 5.4.
	 	Book-Entry Notes	  	 	50	 
	 Section 5.5.
	 	Beneficial Ownership of Global Notes	  	 	52	 
	 Section 5.6.
	 	Notices to Depository	  	 	53	 
			
	 Article VI
	 	The Notes	  	 	53	 
			
	 Section 6.1.
	 	General Provisions; Notes Issuable in Series; Terms of a Series or Class Specified in an Indenture Supplement	  	 	53	 
	 Section 6.2.
	 	Denominations	  	 	55	 
	 Section 6.3.
	 	Execution, Authentication and Delivery and Dating	  	 	55	 
	 Section 6.4.
	 	Temporary Notes	  	 	56	 
	 Section 6.5.
	 	Registration, Transfer and Exchange	  	 	57	 
	 Section 6.6.
	 	Mutilated, Destroyed, Lost and Stolen Notes	  	 	62	 
	 Section 6.7.
	 	Payment of Interest; Interest Rights Preserved; Withholding Taxes	  	 	63	 
	 Section 6.8.
	 	Persons Deemed Owners	  	 	64	 
	 Section 6.9.
	 	Cancellation	  	 	64	 
	 Section 6.10.
	 	New Issuances of Notes	  	 	64	 
			
	 Article VII
	 	Satisfaction and Discharge; Cancellation of Notes Held by the Issuer or PMC	  	 	67	 
			
	 Section 7.1.
	 	Satisfaction and Discharge of Indenture	  	 	67	 
	 Section 7.2.
	 	Application of Trust Money	  	 	68	 
	 Section 7.3.
	 	Cancellation of Notes Held by the Issuer or PMC	  	 	68	 
	 Section 7.4.
	 	Termination of Servicer’s Servicing Rights; Fannie Mae’s Rights	  	 	68	 
			
	 Article VIII
	 	Events of Default and Remedies	  	 	70	 
			
	 Section 8.1.
	 	Events of Default	  	 	70	 
	 Section 8.2.
	 	Acceleration of Maturity; Rescission and Annulment	  	 	73	 
	 Section 8.3.
	 	Collection of Indebtedness and Suits for Enforcement by Indenture Trustee	  	 	74	 
	 Section 8.4.
	 	Indenture Trustee May File Proofs of Claim	  	 	75	 
	 Section 8.5.
	 	Indenture Trustee May Enforce Claims Without Possession of Notes	  	 	75	 
	 Section 8.6.
	 	Application of Money Collected	  	 	76	 
	 Section 8.7.
	 	Sale of Collateral Requires Consent of Noteholders	  	 	76	 

  
 ii 

							
	 Section 8.8.
	 	Limitation on Suits	  	 	76	 
	 Section 8.9.
	 	Limited Recourse	  	 	77	 
	 Section 8.10.
	 	Restoration of Rights and Remedies	  	 	77	 
	 Section 8.11.
	 	Rights and Remedies Cumulative	  	 	78	 
	 Section 8.12.
	 	Delay or Omission Not Waiver	  	 	78	 
	 Section 8.13.
	 	Control by Noteholders	  	 	78	 
	 Section 8.14.
	 	Waiver of Past Defaults	  	 	78	 
	 Section 8.15.
	 	Sale of Trust Estate	  	 	79	 
	 Section 8.16.
	 	Undertaking for Costs	  	 	80	 
	 Section 8.17.
	 	Waiver of Stay or Extension Laws	  	 	80	 
	 Section 8.18.
	 	Notice of Waivers	  	 	80	 
			
	 Article IX
	 	The Issuer	  	 	81	 
			
	 Section 9.1.
	 	Representations and Warranties of Issuer	  	 	81	 
	 Section 9.2.
	 	Liability of Issuer; Indemnities	  	 	85	 
	 Section 9.3.
	 	Merger or Consolidation, or Assumption of the Obligations, of the Issuer	  	 	86	 
	 Section 9.4.
	 	Issuer May Not Own Notes	  	 	87	 
	 Section 9.5.
	 	Covenants of Issuer	  	 	87	 
			
	 Article X
	 	The Administrator and Servicer	  	 	92	 
			
	 Section 10.1.
	 	Representations and Warranties of PMC, as Administrator and as Servicer	  	 	92	 
	 Section 10.2.
	 	Covenants of PMC, as Administrator and as Servicer	  	 	95	 
	 Section 10.3.
	 	Negative Covenants of PMC	  	 	100	 
	 Section 10.4.
	 	Liability of PMC, as Administrator and as Servicer; Indemnities	  	 	102	 
	 Section 10.5.
	 	Merger or Consolidation, or Assumption of the Obligations, of PMC	  	 	103	 
			
	 Article XI
	 	The Indenture Trustee	  	 	104	 
			
	 Section 11.1.
	 	Certain Duties and Responsibilities	  	 	104	 
	 Section 11.2.
	 	Notice of Defaults	  	 	106	 
	 Section 11.3.
	 	Certain Rights of Indenture Trustee	  	 	106	 
	 Section 11.4.
	 	Not Responsible for Recitals or Issuance of Notes	  	 	110	 
	 Section 11.5.
	 	Indenture Trustee’s Appointment as Attorney-In-Fact	  	 	110	 
	 Section 11.6.
	 	Money Held in Trust	  	 	112	 
	 Section 11.7.
	 	Compensation and Reimbursement, Limit on Compensation, Reimbursement and Indemnity	  	 	112	 
	 Section 11.8.
	 	Corporate Indenture Trustee Required; Eligibility	  	 	113	 
	 Section 11.9.
	 	Resignation and Removal; Appointment of Successor	  	 	114	 
	 Section 11.10.
	 	Acceptance of Appointment by Successor	  	 	115	 
	 Section 11.11.
	 	Merger, Conversion, Consolidation or Succession to Business	  	 	116	 
	 Section 11.12.
	 	Appointment of Authenticating Agent	  	 	116	 
	 Section 11.13.
	 	Direction to Indenture Trustee under the PC Repo Guaranty and the PMH Repo Guaranty	  	 	117	 

  
 iii 

							
	 Section 11.14.
	 	Representations and Covenants of the Indenture Trustee	  	 	118	 
	 Section 11.15.
	 	Indenture Trustee’s Application for Instructions from the Issuer	  	 	118	 
			
	 Article XII
	 	Amendments and Indenture Supplements	  	 	118	 
			
	 Section 12.1.
	 	Supplemental Indentures and Amendments Without Consent of Noteholders	  	 	118	 
	 Section 12.2.
	 	Supplemental Indentures and Amendments with Consent of Noteholders	  	 	120	 
	 Section 12.3.
	 	Execution of Amendments	  	 	122	 
	 Section 12.4.
	 	Effect of Amendments	  	 	122	 
	 Section 12.5.
	 	Reference in Notes to Indenture Supplements	  	 	123	 
	 Section 12.6.
	 	Amendments to Appendix A	  	 	123	 
			
	 Article XIII
	 	Early Redemption of Notes	  	 	123	 
			
	 Section 13.1.
	 	Optional Redemption	  	 	123	 
	 Section 13.2.
	 	Notice	  	 	125	 
			
	 Article XIV
	 	Miscellaneous	  	 	125	 
			
	 Section 14.1.
	 	No Petition	  	 	125	 
	 Section 14.2.
	 	No Recourse	  	 	125	 
	 Section 14.3.
	 	Tax Treatment	  	 	126	 
	 Section 14.4.
	 	Alternate Payment Provisions	  	 	126	 
	 Section 14.5.
	 	Termination of Obligations	  	 	126	 
	 Section 14.6.
	 	Final Payment	  	 	127	 
	 Section 14.7.
	 	Base Servicing Fee	  	 	127	 
	 Section 14.8.
	 	Owner Trustee Limitation of Liability	  	 	127	 
	 Section 14.9.
	 	Communications with Rating Agencies	  	 	128	 
	 Section 14.10.
	 	Authorized Representatives	  	 	128	 
	 Section 14.11.
	 	Performance of the Issuer’s Duties by the Owner Trustee and the Administrator	  	 	129	 
	 Section 14.12.
	 	Noteholder or Note Owner Communications with the Indenture Trustee	  	 	129	 

  
 iv 

 SCHEDULES AND EXHIBITS 

 

			
	Schedule 1	  	Participation Certificates Schedule
		
	Schedule 2	  	Participation Agreements Schedule
		
	Schedule 3	  	Eligible Securities Schedule
		
	 Schedule 4
	  	 Required Information Regarding Portfolio Mortgage Loans

		
	 Schedule 5
	  	 Wire Instructions

		
	 Exhibit A-1
	  	 Form of Global Rule 144A Note

		
	 Exhibit A-2
	  	 Form of Definitive Rule 144A Note

		
	 Exhibit A-3
	  	 Form of Global Regulation S Note

		
	 Exhibit A-4
	  	 Form of Definitive Regulation S Note

		
	 Exhibit B-1
	  	 Form of Transferee Certificate for Transfers of Notes pursuant to Rule 144A

		
	 Exhibit B-2
	  	 Form of Transferee Certificate for Transfer of Notes pursuant to Regulation S

		
	 Exhibit C-1
	  	 Authorized Representatives of the Indenture Trustee, Calculation Agent, Paying Agent and
Securities Intermediary

		
	 Exhibit C-2
	  	 Authorized Representatives of PMC, as Servicer and as Administrator

		
	 Exhibit C-3
	  	 Authorized Representatives of the Administrative Agent

		
	 Exhibit C-4
	  	 Authorized Representatives of the Issuer

		
	 Exhibit D
	  	 Form of Certificate of Authentication of Indenture Trustee and Authenticating
Agent

		
	 Exhibit E
	  	 Form of Indenture Supplement

		
	 Exhibit F
	  	 Form of Risk Retention Certification

		
	 Appendix A
	  	 Defined Terms

  
 v 

 PREAMBLE 

This Base Indenture (together with the exhibits and schedules hereto, as amended, restated, supplemented or otherwise modified from time to
time, the “Base Indenture,” and collectively with the Indenture Supplements (as defined herein), the “Indenture”), is made and entered into as of December 20, 2017, by and among PMT ISSUER TRUST -
FMSR, a statutory trust organized under the laws of the State of Delaware (the “Issuer”), CITIBANK, N.A. (“Citibank”), a national banking association, in its capacity as Indenture Trustee (the
“Indenture Trustee”), and as Calculation Agent, Paying Agent and Securities Intermediary (in each case, as defined herein), PENNYMAC CORP., a corporation organized under the laws of the State of Delaware
(“PMC”), as Servicer (as defined herein) and as Administrator (as defined herein), and CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC (“CSFB”), a Delaware limited liability company, as an
Administrative Agent (as defined herein). Capitalized terms used herein have the meanings specified in Section 1.1. 

PRELIMINARY STATEMENT 

WHEREAS, pursuant to the Retained Excess Spread Participation Agreement, PMC has created the Retained MSR Excess Spread PC, which represents a
Participation Interest in Retained MSR Excess Spread; 
 WHEREAS, pursuant to the Excess Spread Participation Agreement, PMC has created the
Sold MSR Excess Spread PC, which represents a Participation Interest in Sold MSR Excess Spread related to all Sold MSR Portfolios, and sold such Sold MSR Excess Spread PC to PMH, and PMH, as Repo Seller, has sold and assigned such Sold MSR Excess
Spread PC back to PMC pursuant to the PMH Repurchase Agreement; 
 WHEREAS, pursuant to the PC Repurchase Agreement, PMC, as Repo Seller,
has sold to the Issuer, as Repo Buyer, all of its right, title and interest in, to and under the Retained MSR Excess Spread PC and the Sold MSR Excess Spread PC; 

WHEREAS, the Guarantor, has issued the PMH Repo Guaranty in favor of PMC with respect to the obligations of PMH as Repo Seller under the PMH
Repurchase Agreement, and PMC will assign its rights, but not its obligations, under the PMH Repurchase Agreement and the PMH Repo Guaranty to the Issuer pursuant to the PC Repurchase Agreement; 

WHEREAS, the Guarantor has issued the PC Repo Guaranty in favor of the Issuer with respect to the obligations of PMC as Repo Seller under the
PC Repurchase Agreement; 
 WHEREAS, on the Closing Date, the parties are entering into this Base Indenture, providing for, among other
things, the Issuer’s authority to issue different Series of Notes from time to time, on the terms and subject to the conditions set forth herein; 

WHEREAS, the Issuer has duly authorized the execution and delivery of this Base Indenture to provide for the issuance on the date hereof of
its Variable Funding Note and potential future issuance of Term Notes and additional Variable Funding Notes, in each case, to be issued in one (1) or more Series and/or Classes, as is or will be specified in the related Indenture Supplement for
such Series; and 

  
 1 

 WHEREAS, all things necessary to make this Base Indenture a valid agreement of the Issuer,
in accordance with its terms, have been done. 
 NOW, THEREFORE, in consideration of the mutual agreements set forth herein, and other good
and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows. 

GRANTING CLAUSE 
 Subject
to the interests of Fannie Mae as set forth below and in the Acknowledgment Agreement, the Issuer hereby Grants to the Indenture Trustee for the benefit and security of the Noteholders and the Indenture Trustee, in its individual capacity (each, a
“Secured Party” and collectively, the “Secured Parties”), a security interest in all its right, title and interest in and to the following, whether now owned or hereafter acquired and wheresoever
located (collectively, the “Collateral”), and all monies, “securities,” “instruments,” “accounts,” “general intangibles,” “payment intangibles,” “goods,”
“letter of credit rights,” “chattel paper,” “financial assets,” “investment property” (the terms in quotations are defined in the UCC) and other property consisting of, arising from or relating to any of the
following: 
 (i) all right, title and interest of the Issuer in, to and under (A) the Retained MSR Excess Spread PC,
(B) the Sold MSR Excess Spread PC and (C) all monies due or to become due thereon, and all amounts received or receivable with respect thereto, and all proceeds thereof (including “proceeds” as defined in the UCC in effect in all
relevant jurisdictions, including all amounts collected by the Servicer or any Subservicer on its behalf for servicing compensation (not including Advance Reimbursement Amounts or Ancillary Income) under any Participation Certificate); 

(ii) all right, title and interest of the Issuer in, to and under any Eligible Securities and all monies due or to become due
thereon, and all amounts received or receivable with respect thereto, and all proceeds thereof (including “proceeds” as defined in the Uniform Commercial Code in effect in all relevant jurisdictions); 

(iii) all rights and claims of the Issuer as Repo Buyer under the PC Repurchase Agreement; 

(iv) all rights and claims of the Issuer as buyer under the Dedicated Account Pledge Agreement; 

(v) all rights and claims of the Issuer pursuant to the PC Repo Guaranty; 

(vi) all rights and claims of the Issuer, as assignee of PMC, pursuant to the PMH Repurchase Agreement and the PMH Repo
Guaranty; 

  
 2 

 (vii) all rights and claims of the Issuer to the additional collateral
pledged to the Issuer to support PMC’s obligations under the PC Repurchase Agreement, including any and all rights (A) as assignee of PMC of the PMH Repurchase Agreement and the PMH Repo Guaranty, (B) as assignee of PMC to rights to
payment on the Participation Certificates, and under all related documents, instruments and agreements pursuant to which PMC acquired, or acquired an interest in, any of the Participation Certificates and (C) as pledgee of the MSRs; 

(viii) all rights and claims of the Issuer under the Acknowledgment Agreement; 

(ix) the Trust Accounts and all amounts and property on deposit or credited to the Trust Accounts (excluding any investment
earnings thereon) from time to time (whether or not constituting or derived from payments, collections or recoveries received, made or realized in respect of the Participation Certificates); 

(x) any rights in the Dedicated Account and to the amounts on deposit therein; 

(xi) all other monies, securities, reserves and other property now or at any time in the possession of the Indenture Trustee or
its bailee, agent or custodian and relating to any of the foregoing; and 
 (xii) all present and future claims, demands,
causes and choses in action in respect of any and all of the foregoing and all payments on or under, and all proceeds of every kind and nature whatsoever in respect of, any and all of the foregoing and all payments on or under, and all proceeds of
every kind and nature whatsoever in conversion thereof, voluntary or involuntary, into cash or other liquid property, all cash proceeds, accounts, accounts receivable, notes, drafts, acceptances, checks, deposit accounts, rights to payment of any
and every kind, and other forms of obligations and receivables, instruments and other property which at any time constitute all or part of or are included in the proceeds of any of the foregoing. 

The Security Interest in the Trust Estate is Granted to secure the Notes issued pursuant to this Base Indenture (and the obligations under
this Base Indenture and any Indenture Supplement) equally and ratably without prejudice, priority or distinction between any Note and any other Note by reason of difference in time of issuance or otherwise, except as otherwise expressly provided in
this Base Indenture or in any Indenture Supplement, and to secure (1) the payment of all amounts due on such Notes, (2) the payment of all other sums payable by the Issuer under this Base Indenture or any Indenture Supplement and
(3) compliance by the Issuer with the provisions of this Base Indenture or any Indenture Supplement. This Base Indenture, as it may be supplemented, including by each Indenture Supplement, is a security agreement within the meaning of the UCC.

 The Indenture Trustee acknowledges the Grant of such Security Interest, and agrees to perform the duties herein in accordance with the
terms hereof. 
 Notwithstanding anything to the contrary in this Base Indenture or any of the other Transaction Documents, the security
interest of the Indenture Trustee for the benefit of the 

  
 3 

 
Noteholders created hereby with respect to the Participation Certificates and the MSRs is subject to the following provisions, which provisions shall be included in each financing statement filed
in respect hereof: 
 The Security Interest described in this financing statement is subordinate to all rights of Fannie Mae
under (i) the terms of an Acknowledgment Agreement, with respect to the Security Interest (as defined therein) among Fannie Mae, PennyMac Corp. (the “Servicer”), PennyMac Holdings, LLC, PennyMac Mortgage Investment Trust
and Citibank, N.A., solely as Indenture Trustee under the Base Indenture, dated December 20, 2017, and not in its individual capacity, (ii) the terms of a Subordination of Interest Agreement, with respect to the Security Interest (as
defined therein), among Fannie Mae, the Servicer and PennyMac Holdings, LLC, and (iii) the Mortgage Selling and Servicing Contract, the Fannie Mae Selling Guide, the Fannie Mae Servicing Guide and all supplemental servicing instructions or
directives provided by Fannie Mae, all applicable master agreements, recourse agreements, repurchase agreements, indemnification agreements, loss-sharing agreements, and any other agreements between Fannie Mae and the Servicer, and all as amended,
restated or supplemented from time to time (collectively, the “Fannie Mae Lender Contract”), which rights include the right of Fannie Mae to terminate the Fannie Mae Lender Contract with or without cause and the right to
sell, or have transferred, the Servicing Rights. 
 The Issuer hereby authorizes the Administrator, on behalf of the Issuer and the
Indenture Trustee, and its assignees, successors and designees to file one or more UCC financing statements, financing statement amendments and continuation statements to perfect the security interest granted above. In addition, the Issuer hereby
consents to the filing of a financing statement describing the Collateral covered thereby as “all assets of the Debtor, now owned or hereafter acquired,” or such similar language as the Administrator, on behalf of the Indenture Trustee,
and its assignees, successors and designees may deem appropriate. 
 Subject to the interests and rights of Fannie Mae as set forth in this
Base Indenture and in the Acknowledgment Agreement and the Fannie Mae Requirements, the parties hereto intend that the Security Interest Granted under this Base Indenture shall give the Indenture Trustee on behalf of the Secured Parties a first
priority perfected security interest in, to and under the Collateral, and all other property described in this Base Indenture as a part of the Trust Estate and all proceeds of any of the foregoing in order to secure the obligations of the Issuer to
the Indenture Trustee and the Noteholders under the Notes, this Base Indenture, the related Indenture Supplement, and all of the other Transaction Documents. The Indenture Trustee on behalf of the Secured Parties shall have all the rights, powers
and privileges of a secured party under the UCC. The Issuer agrees to execute and file all filings (including filings under the UCC) and take all other actions reasonably necessary in any jurisdiction to provide third parties with notice of the
Security Interest Granted pursuant to this Base Indenture and to perfect such Security Interest under the UCC. 
 AGREEMENTS OF THE
PARTIES 
 To set forth or to provide for the establishment of the terms and conditions upon which the Notes are to be authenticated,
issued and delivered, and in consideration of the premises and the 

  
 4 

 
purchase of Notes by the Noteholders thereof, it is mutually covenanted and agreed as set forth in this Base Indenture, for the equal and proportionate benefit of all Noteholders of the Notes or
of a Series or Class thereof, as the case may be. 
 LIMITED RECOURSE 

The obligation of the Issuer to make payments of principal, interest and other amounts on the Notes is limited in recourse as set forth in
Section 8.9. 
 Article I 

Definitions and Other Provisions of General Application 

Section 1.1. Definitions. 

For all purposes of this Indenture, except as otherwise expressly provided herein or unless the context otherwise requires, capitalized terms
not otherwise defined herein shall have the meanings assigned to such terms in the Definitions attached hereto as Appendix A which is incorporated by reference herein. All other capitalized terms used herein shall have the meanings specified
herein. 
 Section 1.2. Interpretation. 

For all purposes of this Base Indenture, except as otherwise expressly provided or unless the context otherwise requires: 

(a) reference to and the definition of any document (including this Base Indenture) shall be deemed a reference to such document as it may be
amended, restated, supplemented or otherwise modified from time to time; 
 (b) all references to an “Article,”
“Section,” “Schedule” or “Exhibit” are to an Article or Section hereof or to a Schedule or an Exhibit attached hereto; 

(c) defined terms in the singular shall include the plural and vice versa and the masculine, feminine or neuter gender shall include all
genders; 
 (d) the words “hereof,” “herein” and “hereunder” and words of similar import when used in this
Base Indenture shall refer to this Base Indenture as a whole and not to any particular provision of this Base Indenture; 
 (e) unless
otherwise specified herein, the term “or” has the inclusive meaning represented by the term “and/or” and the term “including” is not limiting; 

(f) in the computation of periods of time from a specified date to a later specified date, unless otherwise specified herein, the words
“commencing on” mean “commencing on and including,” the word “from” means “from and including” and the words “to” and “until” each means “to but excluding”; 

  
 5 

 (g) periods of days referred to in this Base Indenture shall be counted in days unless
Business Days are expressly prescribed and references in this Base Indenture to months and years shall be to months and years unless otherwise specified; 

(h) accounting terms not otherwise defined herein and accounting terms partly defined herein to the extent not defined, shall have the
respective meanings given to them under GAAP; 
 (i) “including” and words of similar import will be deemed to be followed by
“without limitation”; 
 (j) references to any Transaction Document (including this Base Indenture) and any other agreement shall
be deemed a reference to such Transaction Document or agreement as it may be amended, restated, supplemented or otherwise modified from time to time; 

(k) references to any statute, law, rule or regulation shall be deemed a reference to such statute, law, rule or regulation as it may be
amended or modified from time to time; 
 (l) all references to payments or deliveries of “cash” shall be understood to mean
“immediately available funds” or “available funds held in a deposit account,” as the context may require; and 
 (m)
references to a Person shall be deemed a reference to its permitted successors and assigns. 
 Section 1.3. Compliance Certificates and
Opinions. 
 Upon any application or request by the Issuer to the Indenture Trustee to take any action under any provision of this
Base Indenture, the Issuer will furnish to the Indenture Trustee (1) an Officer’s Certificate stating that all conditions precedent, if any, provided for in this Base Indenture relating to the proposed action have been complied with and
(2) except as provided below, an Opinion of Counsel stating that in the opinion of such counsel all such conditions precedent, if any, have been complied with, except that in the case of any such application or request as to which the
furnishing of such documents is specifically required by any provision of this Base Indenture relating to such particular application or request, no additional certificate or opinion need be furnished. No such certificate or opinion shall be
required in any instance where 100% of the Noteholders have consented to the related amendment, modification or action and all of the Noteholders have directed the Indenture Trustee in writing to execute such amendment or supplement, or with respect
to any other modification or action, directed the Indenture Trustee in writing to permit such modification or action without receiving such certificate or opinion. 

Every certificate with respect to compliance with a condition or covenant provided for in this Base Indenture will include: 

  
 6 

 (a) a statement to the effect that each individual signing such certificate has read such
covenant or condition and the definitions herein relating thereto; 
 (b) a brief statement as to the nature and scope of the examination or
investigation upon which the statements or opinions contained in such certificate are based; 
 (c) a statement to the effect that such
individual has made such examination or investigation as is necessary to express an informed opinion as to whether or not such covenant or condition has been complied with; and 

(d) a statement as to whether, in the opinion of each such individual, such condition or covenant has been complied with. 

Section 1.4. Form of Documents Delivered to Indenture Trustee. 

In any case where several matters are required to be certified by, or covered by an opinion of, one or more specified Persons, one such Person
may certify or give an opinion with respect to some matters and one or more other such Persons as to the other matters, and any such Person may certify or give an opinion as to such matters in one or several documents. 

Any certificate or opinion of the Issuer may be based, insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless the Issuer knows, or in the exercise of reasonable care should know, that the certificate or opinion or representations are erroneous. Any such certificate or opinion of, or representation by, counsel may be
based, insofar as it relates to factual matters, upon a certificate or opinion of, or representations by, the Issuer stating that the information with respect to such factual matters is in the possession of the Issuer, unless such counsel knows, or
in the exercise of reasonable care should know, that the certificate or opinion or representations are erroneous. 
 Where any Person is
required to make, give or execute two or more applications, requests, consents, certificates, statements, opinions or other instruments under this Base Indenture, they may, but need not, be consolidated and form one instrument. 

Section 1.5. Acts of Noteholders. 

(a) Any request, demand, authorization, direction, notice, consent, waiver or other action (each, an “Action”) provided
by this Base Indenture to be given or taken by Noteholders of any Class may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such Noteholders in person or by an agent duly appointed in writing.
Except as herein otherwise expressly provided, such Action will become effective when such instrument or instruments are delivered to the Indenture Trustee, and, where it is hereby expressly required, to the Issuer. Such instrument or instruments
and any such record (and the Action embodied therein and evidenced thereby) are herein sometimes referred to as the “Act” of the Noteholders signing such instrument or instruments and so voting at any meeting. Proof of
execution of any such instrument or of a writing appointing any such agent, or the holding by any Person of a Note, will be sufficient for any purpose of this Base Indenture and (subject to Section 11.1) conclusive in favor
of the Indenture Trustee and the Issuer, if made in the manner provided in this Section 1.5. 

  
 7 

 (b) The fact and date of the execution by any Person of any such instrument or writing may
be proved by the affidavit of a witness to such execution or by the certificate of any notary public or other officer authorized by law to take acknowledgments of deeds, certifying that the individual signing such instrument or writing acknowledged
to him the execution thereof. Where such execution is by an officer of a corporation or a member of a partnership, on behalf of such corporation or partnership, such certificate or affidavit will also constitute sufficient proof of his authority.
The fact and date of the execution of any such instrument or writing, or the authority of the person executing the same, may also be proved in any other manner which the Indenture Trustee deems sufficient. 

(c) The ownership of Notes will be proved by the Note Register. 

(d) Any Action by a Noteholder will bind all subsequent Noteholders of such Noteholder’s Note, in respect of anything done or suffered to
be done by the Indenture Trustee or the Issuer in reliance thereon whether or not notation of such Action is made upon such Note. 
 (e)
Without limiting the foregoing, a Noteholder entitled hereunder to take any Action hereunder with regard to any particular Note may do so with regard to all or any part of the principal amount of such Note or by one or more duly appointed agents
each of which may do so pursuant to such appointment with regard to all or any part of such principal amount. Any notice given or Action taken by a Noteholder or its agents with regard to different parts of such principal amount pursuant to this
paragraph shall have the same effect as if given or taken by separate Noteholders of each such different part. 
 (f) Without limiting the
generality of the foregoing, unless otherwise specified pursuant to one or more Indenture Supplements, a Noteholder, including a Depository that is the Noteholder of a Global Note representing Book-Entry Notes, may make, give or take, by a proxy or
proxies duly appointed in writing, any Action provided in this Base Indenture to be made, given or taken by a Noteholder, and a Depository that is the Noteholder of a Global Note may provide its proxy or proxies to the beneficial owners of interests
in or security entitlements to any such Global Note through such Depository’s standing instructions and customary practices. 
 (g) The
Issuer may fix a record date for the purpose of determining the Persons who are beneficial owners of interests in or security entitlements to any Global Note held by a Depository entitled under the procedures of such Depository to make, give or
take, by a proxy or proxies duly appointed in writing, any Action provided in this Base Indenture to be made, given or taken by Noteholders. If such a record date is fixed, the Noteholders on such record date or their duly appointed proxy or
proxies, and only such Persons, shall be entitled to make, give or take such Action, whether or not such Noteholders remain Noteholders after such record date. No such Action shall be valid or effective if made, given or taken more than ninety
(90) days after such record date. 

  
 8 

 Section 1.6. Notices, etc., to Indenture Trustee, Issuer, Administrator, the Administrative Agent
and Note Rating Agencies. 
 (a) Any Action of Noteholders or other document provided or permitted by this Base Indenture to be made
upon, given or furnished to, or filed with, the Indenture Trustee by any Noteholder or by the Issuer will be sufficient for every purpose hereunder if in writing (which shall include electronic transmission) and personally delivered, express
couriered, electronically transmitted or mailed by registered or certified mail to the Indenture Trustee (or the bank serving as Indenture Trustee in any of its capacities) at its Corporate Trust Office, or the Issuer or the Administrator by the
Indenture Trustee or by any Noteholder will be sufficient for every purpose hereunder (except with respect to notices to the Indenture Trustee of an Event of Default as provided in Section 8.1) if in writing (which shall
include electronic transmission) and personally delivered, express couriered, electronically transmitted or mailed by registered or certified mail, addressed to it at: (i) in the case of the Indenture Trustee, in any of its capacities:
Citibank, N.A., Corporate and Investment Banking, 388 Greenwich Street, 14th Floor, New York, NY 10013, Attention: PMT ISSUER TRUST – FMSR Collateralized Notes, email: valerie.delgado@citi.com; (ii) in the case of Servicer and Administrator:
3043 Townsgate Road, Suite 300, Westlake Village, CA 91361, Attention: PMT ISSUER TRUST – FMSR Collateralized Notes, email: pamela.marsh@pnmac.com; josh.smith@pnmac.com; mortgage.finance@pnmac.com (with a copy to Chris Gavin, Esq., Cadwalader,
Wickersham & Taft LLP, 200 Liberty Street, New York, NY 10281, email: chris.gavin@cwt.com); (iii) in the case of the Issuer: to the Administrator (with copy to: Wilmington Savings Fund Society, FSB, as Owner Trustee, 500 Delaware Avenue,
11th Floor, Wilmington, Delaware 19801, Attention: Corporate Trust Administration, email: SVernon@wsfsbank.com); (iv) in the case of CSFB, as Administrative Agent: Eleven Madison Avenue, New York, NY 10010, email: dominic.obaditch@credit-suisse.com;
in the case of the Disposition Manager, Pentalpha Surveillance LLC, 375 N. French Rd., Suite 100, Amherst, New York, 14228, Attention: PMT ISSUER TRUST – FMSR, email: notices@pentalphasurveillance.com; or (vi) in any case at any other
address previously furnished in writing by any such party to the other parties hereto. 
 (b) Where this Base Indenture provides for notice
to or consent from any Note Rating Agency, such notice or consent will only be required to the extent that any Outstanding Class is then currently being rated at the request of PMC, and as specified in the related Indenture Supplement, and if
no Outstanding Class is being so rated, including in the event ratings unsolicited by PMC are being issued, such notice or consent provisions shall be of no force or effect. In the event that an Indenture Supplement provides that one or more
Classes obtain a rating, any notice shall be sufficient for every purpose hereunder (except with respect to notices to the Indenture Trustee of an Event of Default as provided in Section 3.3 or
Section 8.1) if in writing (which shall include electronic transmission) and personally delivered, express couriered, electronically transmitted or mailed by registered or certified mail, addressed to it at the address set
forth in the related Indenture Supplement. Failure to give such notice will not affect any other rights or obligations created hereunder and will not under any circumstance constitute an Adverse Effect. 

Section 1.7. Notices to Noteholders; Waiver. 

(a) Where this Base Indenture, any Indenture Supplement or any Note provides for notice to registered Noteholders of any event, such notice
will be sufficiently given (unless expressly provided otherwise herein, in such Indenture Supplement or in such Note) if in writing 

  
 9 

 
and mailed by overnight courier, sent by facsimile, sent by electronic transmission or personally delivered to each Noteholder of a Note affected by such event, at such Noteholder’s address
as it appears in the Note Register, not later than the latest date, and not earlier than the earliest date, prescribed for the giving of such notice. In any case where notice to Noteholders is given by mail, facsimile, electronic transmission or
delivery, none of the failure to mail, send by facsimile, send by electronic transmission or deliver such notice, or any defect in any notice so mailed, to any particular Noteholders will affect the sufficiency of such notice with respect to other
Noteholders and any notice that is mailed, sent by facsimile, sent by electronic transmission or delivered in the manner herein provided shall conclusively have been presumed to have been duly given. 

Where this Base Indenture, any Indenture Supplement or any Note provides for notice in any manner, such notice may be waived in writing by the
Person entitled to receive such notice, either before or after the event, and such waiver will be the equivalent of such notice. Waivers of notice by Noteholders will be filed with the Indenture Trustee, but such filing will not be a condition
precedent to the validity of any action taken in reliance upon such waiver. 
 (b) In case, by reason of the suspension of regular mail
service as a result of a strike, work stoppage or otherwise, it will be impractical to mail notice of any event to any Noteholder of a Note when such notice is required to be given pursuant to any provision of this Base Indenture, then any method of
notification as will be satisfactory to the Indenture Trustee and the Issuer will be deemed to be a sufficient giving of such notice. 
 (c)
The Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary each agree to accept and act upon instructions or directions pursuant to this Base Indenture or any document executed in connection herewith sent by unsecured email,
facsimile transmission or other similar unsecured electronic methods; provided, however, that the Indenture Trustee shall have received an incumbency certificate (attached hereto as Exhibits
C-1 through C-4) listing such person as a person designated to provide such instructions or directions, which incumbency certificate may be amended whenever a person is added or deleted from
the listing. If such person elects to give the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary email or facsimile instructions (or instructions by a similar electronic method) and the Indenture Trustee, Calculation
Agent, Paying Agent and Securities Intermediary in its discretion elects to act upon such instructions, the Indenture Trustee’s, Calculation Agent’s, Paying Agent’s and Securities Intermediary’s reasonable understanding of such
instructions, as applicable, shall be deemed controlling. 
 (d) None of the Indenture Trustee, Calculation Agent, Paying Agent and
Securities Intermediary shall be liable for any losses, costs or expenses arising directly or indirectly from the Indenture Trustee’s reliance upon and compliance with such instructions notwithstanding such instructions conflicting with or
being inconsistent with a prior written instruction except as a result of their respective willful misconduct, negligence or bad faith. Any Person providing such instructions or directions agrees to assume all risks arising out of the use of such
electronic methods to submit instructions and directions to the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary, including the risk of Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary
acting on unauthorized instructions, and the risk of interception and misuse by third parties and acknowledges and agrees that there may be more secure methods 

  
 10 

 
of transmitting such instructions than the method(s) selected by it and agrees that the security procedures (if any) to be followed in connection with its transmission of such instructions
provide to it a commercially reasonable degree of protection in light of its particular needs and circumstances. 
 Section 1.8. Administrative
Agent. 
 (a) Discretion of Administrative Agent. Any provision providing for the exercise of discretion of the Administrative
Agent means that such discretion may be executed in the reasonable discretion of the Administrative Agent. In addition, as further provided in the definition of “Administrative Agent” herein and notwithstanding any other provision in this
Base Indenture to the contrary, any approvals, consents, votes or other rights exercisable by the Administrative Agent under this Base Indenture (other than any Indenture Supplement related to a specific Series) shall require the approval, consent,
vote or other exercise of rights of each Person specified by name under the definition of “Administrative Agent” or in its stead its Affiliate or successor as noticed to the Indenture Trustee, unless otherwise specified in any Indenture
Supplement related to a specific Series. 
 (b) Nature of Duties. The Administrative Agent shall have no duties or responsibilities
except those expressly set forth in this Base Indenture, a related Indenture Supplement or in the other Transaction Documents. The Administrative Agent shall not have by reason of this Base Indenture or any Transaction Document a fiduciary
relationship in respect of any Noteholder. Nothing in this Base Indenture or any of the Transaction Documents, express or implied, is intended to or shall be construed to impose upon the Administrative Agent any obligations in respect of this Base
Indenture or any of the other Transaction Documents except as expressly set forth herein or therein. Each Noteholder shall make its own independent investigation of the financial condition and affairs of the Issuer in connection with the purchase of
any Note and shall make its own appraisal of the creditworthiness of the Issuer and the value of the Collateral, and the Administrative Agent shall have no duty or responsibility, either initially or on a continuing basis, to provide any Noteholder
with any credit or other information with respect thereto, whether coming into its possession before the Closing Date, as applicable, or at any time or times thereafter. 

(c) Rights, Exculpation, Etc. The Administrative Agent and its directors, officers, agents or employees shall not be liable for any
action taken or omitted to be taken by it under or in connection with this Base Indenture or the other Transaction Documents. Without limiting the generality of the foregoing, the Administrative Agent: (i) may consult with legal counsel
(including counsel to the Administrative Agent or counsel to the Issuer), independent public accountants, and other experts selected by it and shall not be liable for any action taken or omitted to be taken in good faith by it in accordance with the
advice of such counsel or experts; (ii) makes no warranty or representation to any Noteholder and shall not be responsible to any Noteholder for any statements, certificates, warranties or representations made in or in connection with this Base
Indenture or the other Transaction Documents; (iii) shall not have any duty to ascertain or to inquire as to the performance or observance of any of the terms, covenants or conditions of this Base Indenture or the other Transaction Documents on
the part of any Person, the existence or possible existence of any default or Event of Default, or to inspect the Collateral or other property (including the books and records) of any Person; (iv) shall not be responsible to any Noteholder for
the due 

  
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execution, legality, validity, enforceability, genuineness, sufficiency or value of this Base Indenture or the other Transaction Documents or any other instrument or document furnished pursuant
hereto or thereto; and (v) shall not be deemed to have made any representation or warranty regarding the existence, value or collectability of the Collateral, the existence, priority or perfection of the Indenture Trustee’s Adverse Claim
thereon, or any certificate prepared by the Issuer in connection therewith, nor shall the Administrative Agent be responsible or liable to the Noteholders for any failure to monitor or maintain any portion of the Collateral. Without limiting the
foregoing and notwithstanding any understanding to the contrary, no Noteholder shall have any right of action whatsoever against the Administrative Agent as a result of the Administrative Agent acting or refraining from acting under this Base
Indenture, the Notes or any of the other Transaction Documents in its own interests as a Noteholder or otherwise. 
 (d) Reliance.
The Administrative Agent shall be entitled to rely upon any written notices, statements, certificates, orders or other documents or any telephone message believed by it in good faith to be genuine and correct and to have been signed, sent or made by
the proper Person, and with respect to all matters pertaining to this Base Indenture or any of the other Transaction Documents and its duties hereunder or thereunder, upon advice of counsel selected by it. 

Section 1.9. Effect of Headings and Table of Contents. 

The Article and Section headings herein and the Table of Contents are for convenience only and will not affect the construction hereof. 

Section 1.10. Successors and Assigns. 

All covenants and agreements in this Base Indenture by the Issuer will bind its successors and assigns, whether so expressed or not. All
covenants and agreements of the Indenture Trustee in this Base Indenture shall bind its successors, co-trustees and agents of the Indenture Trustee. 

Section 1.11. Severability of Provisions. 

In case any provision in this Base Indenture or in the Notes will be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions will not in any way be affected or impaired thereby. 
 Section 1.12. Benefits of Indenture.

 Nothing in this Base Indenture or in any Notes, expressed or implied, will give to any Person, other than the parties hereto and their
successors hereunder, any Authenticating Agent or Paying Agent, the Note Registrar, the Securities Intermediary, the Calculation Agent, any Secured Party and the Noteholders of Notes (or such of them as may be affected thereby), any benefit or any
legal or equitable right, remedy or claim under this Base Indenture. 

  
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 Section 1.13. Governing Law. 

THIS BASE INDENTURE AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR RELATED TO OR IN CONNECTION WITH THIS BASE INDENTURE, THE
RELATIONSHIP OF THE PARTIES HERETO, AND/OR THE INTERPRETATION AND ENFORCEMENT OF THE RIGHTS AND DUTIES OF THE PARTIES HERETO WILL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK (WITHOUT REFERENCE TO THE CONFLICT OF
LAW PRINCIPLES THEREOF OTHER THAN SECTIONS 5-1401 AND 5-1402 OF THE NEW YORK GENERAL OBLIGATIONS LAW) AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER
SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS. 
 THE SECURITIES INTERMEDIARY, THE ADMINISTRATOR AND THE ISSUER AGREE THAT THEY
WILL NOT CHANGE THE APPLICABLE LAW IN FORCE WITH RESPECT TO ISSUES REFERRED TO IN ARTICLE 2(1) OF THE HAGUE SECURITIES CONVENTION TO A STATE OTHER THAN THE STATE OF NEW YORK. 

Section 1.14. Counterparts. 

This Base Indenture may be executed in any number of counterparts, each of which so executed will be deemed to be an original, but all such
counterparts will together constitute but one and the same instrument. Delivery of an executed counterpart of a signature page to this Base Indenture by facsimile or other electronic means shall be effective as delivery of a manually executed
counterpart of this Base Indenture. 
 EACH OF THE PARTIES HERETO AND THE NOTEHOLDERS, BY THEIR ACCEPTANCE OF THE NOTES, HEREBY IRREVOCABLY
AND UNCONDITIONALLY: 
 (a) SUBMITS FOR ITSELF AND ITS PROPERTY IN ANY LEGAL ACTION OR PROCEEDING RELATING TO THIS BASE INDENTURE, OR FOR
RECOGNITION AND ENFORCEMENT OF ANY JUDGMENT IN RESPECT THEREOF, TO THE GENERAL JURISDICTION OF THE COURTS OF THE STATE OF NEW YORK SITTING IN THE BOROUGH OF MANHATTAN, THE FEDERAL COURTS OF THE UNITED STATES OF AMERICA FOR THE SOUTHERN DISTRICT OF
NEW YORK, AND APPELLATE COURTS FROM ANY THEREOF; 
 (b) CONSENTS THAT ANY SUCH ACTION OR PROCEEDING MAY BE BROUGHT IN SUCH COURTS AND, TO
THE EXTENT PERMITTED BY LAW, WAIVES ANY OBJECTION THAT IT MAY NOW OR HEREAFTER HAVE TO THE VENUE OF ANY SUCH ACTION OR PROCEEDING IN ANY SUCH COURT OR THAT SUCH ACTION OR PROCEEDING WAS BROUGHT IN AN INCONVENIENT COURT AND AGREES NOT TO PLEAD OR
CLAIM THE SAME; 
 (c) AGREES THAT SERVICE OF PROCESS IN ANY SUCH ACTION OR PROCEEDING MAY BE EFFECTED BY MAILING A COPY THEREOF BY
REGISTERED OR CERTIFIED MAIL (OR ANY SUBSTANTIALLY SIMILAR FORM OF MAIL), POSTAGE 

  
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PREPAID, TO ITS ADDRESS SET FORTH HEREIN OR AT SUCH OTHER ADDRESS OF WHICH EACH OTHER PARTY HERETO SHALL HAVE BEEN NOTIFIED IN WRITING, EXCEPT THAT WITH RESPECT TO THE INDENTURE TRUSTEE,
CALCULATION AGENT, PAYING AGENT AND SECURITIES INTERMEDIARY, SERVICE OF PROCESS MAY ONLY BE MADE AS REQUIRED BY APPLICABLE LAW; 
 (d)
AGREES THAT NOTHING HEREIN SHALL AFFECT THE RIGHT TO EFFECT SERVICE OF PROCESS IN ANY OTHER MANNER PERMITTED BY LAW OR SHALL LIMIT THE RIGHT TO SUE IN ANY OTHER JURISDICTION; 

(e) WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR
RELATING TO THIS BASE INDENTURE OR THE TRANSACTIONS CONTEMPLATED HEREBY; AND 
 (f) AGREES THAT IN THE EVENT THAT ANY TERM OR PROVISION
CONTAINED HEREIN SHALL CONFLICT WITH OR BE INCONSISTENT WITH ANY TERM OR PROVISION CONTAINED IN ANY INDENTURE SUPPLEMENT, THE TERMS AND PROVISIONS OF THE APPLICABLE INDENTURE SUPPLEMENT SHALL GOVERN WITH RESPECT TO THE RELATED SERIES OF NOTES, TO
THE EXTENT OF SUCH CONFLICT. 
 The Trust Estate 

Section 2.1. Contents of Trust Estate. 

(a) Grant of Trust Estate. The Issuer has Granted the Trust Estate to the Indenture Trustee, and the Indenture Trustee has accepted this
Grant, pursuant to the Granting Clause. 
 (b) Addition and Removal of Participation Certificates and Mortgage Loans. 

(i) Addition of Participation Certificates and Mortgage Loans. 

(A) PMC may at any time designate any Participation Certificates as additional Participation Certificates to be sold to the
Issuer under the PC Repurchase Agreement, whereupon such Participation Certificate shall be added to the Collateral for purposes of this Base Indenture if (1) the Administrative Agent (in its sole discretion) has approved such Participation
Certificate for addition and (2) written notice of such addition has been provided to the Note Rating Agencies for the Outstanding Notes. Prior to the addition of any Participation Certificates, as provided in this
Section 2.1(b), the Administrator must certify to the Indenture Trustee in writing that it has filed all financing statements or amendments to financing statements to ensure that the Indenture Trustee’s Security
Interest in any additional Participation Certificate, and, if applicable, in the related MSRs, is perfected and of first priority. 

  
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 (B) If any Participation Certificates are added as Collateral, the
Administrator shall update the Participation Certificate Schedule and furnish it to the Indenture Trustee, and the most recently furnished schedule shall be maintained by the Indenture Trustee as the definitive Participation Certificate Schedule.

 (C) From time to time, in accordance with the Retained Excess Spread Participation Agreement or the Excess Spread
Participation Agreement, as applicable, Mortgage Loans may be added to (i) the Retained MSR Portfolio or (ii) the Sold MSR Excess Spread PC in connection with a new confirmation being entered into thereunder, and when such Mortgage Loans
are added, PMC shall provide an updated Participation Certificate Schedule to reflect any such additions, to the Indenture Trustee and the Administrative Agent, and any new Participation Certificate Schedule shall automatically become the new
updated schedule thereof. 
 (ii) Removal of the Participation Certificates and Mortgage Loans. 

(A) PMC may remove: (1) the Sold MSR Excess Spread PC from the Collateral, whereupon such Sold MSR Excess Spread PC and
the related MSRs shall no longer constitute Collateral for purposes of this Base Indenture, if PMH shall have repurchased such Participation Certificate for the full PMH Repurchase Price and such PMH Repurchase Price has been deposited into the
Collection and Funding Account by no later than 10:00 a.m. New York City time on each Payment Date (or such other time as may be agreed to from time to time by the Servicer, the Administrator, the Indenture Trustee and the Administrative Agent), for
application in accordance with Section 4.5 (subject to Section 2.06 of the PC Repurchase Agreement); or (2) the Retained MSR Excess Spread PC from the Collateral, whereupon such Retained MSR Excess Spread PC shall
no longer constitute Collateral for purposes of this Base Indenture, if PMC shall have repurchased such Participation Certificate for the full PMC Repurchase Price and such PMC Repurchase Price has been deposited into the Collection and Funding
Account, for application in accordance with Section 4.5. 
 (B) In accordance with the Retained
Excess Spread Participation Agreement or the Excess Spread Participation Agreement, as applicable, PMC may cause the removal of the MSRs related to Subject Mortgages underlying a Participation Certificate, whereupon such MSRs shall no longer
constitute Collateral for purposes of this Base Indenture; provided, that PMC shall have repurchased such MSRs for the full PMC Repurchase Price and shall have deposited such PMC Repurchase Price into the Collection and Funding Account by no
later than 10:00 a.m. New York City time on each Payment Date (or such other time as may be agreed to from time to time by the Servicer, the Administrator, the Indenture Trustee and the Administrative Agent), for application in accordance with
Section 4.5. 

  
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 (C) If any Participation Certificates are no longer Collateral, the
Administrator shall update the Participation Certificate Schedule and furnish it to the Indenture Trustee, and the most recently furnished schedule shall be maintained by the Indenture Trustee as the definitive Participation Certificate Schedule.

 (D) If any MSRs are removed from the Participation Agreements, PMC shall provide an updated schedule to the Retained MSR
Excess Spread PC to reflect any such removals, to the Indenture Trustee and the Administrative Agent within ten (10) Business Days of such removal, and any new schedule to the Retained MSR Excess Spread PC, shall automatically become the new
updated schedule thereof. 
 (c) Protection of Transfers to, and Back-up Security Interests of
Issuer. The Administrator shall take all actions as may be necessary to ensure that the Trust Estate is Granted to the Indenture Trustee pursuant to this Base Indenture. The Administrator, at its own expense, shall make (or cause to be made) all
initial filings on or about the Closing Date hereunder and shall forward a copy of such filing or filings to the Indenture Trustee. In addition, and without limiting the generality of the foregoing, the Administrator, at its own expense at the
reasonable request of the Administrative Agent, shall prepare and forward for filing, or shall cause to be forwarded for filing, all filings necessary to maintain the effectiveness of any original filings necessary under the relevant UCC to perfect
and maintain the first priority status of the Indenture Trustee’s security interest in the Trust Estate, including (i) continuation statements, and (ii) such other statements as may be occasioned by (A) any change of name of any
of PMC or the Issuer, (B) any change of location of the jurisdiction of any of PMC or the Issuer, (C) any transfer of any interest of PMC or the Issuer in any item in the Trust Estate or (D) any change under the applicable UCC or
other applicable laws. The Administrator shall enforce the Servicer’s obligations pursuant to the PC Repurchase Agreement, on behalf of the Issuer and the Indenture Trustee. 

Section 2.2. Asset Files. 

(a) Indenture Trustee. The Indenture Trustee agrees to hold, in trust on behalf of the Noteholders, within two (2) Business Days of
the execution and delivery of this Base Indenture, the following documents relating to each Participation Certificate: 
 (i)
each original Participation Certificate; 
 (ii) a copy of each Determination Date Report in electronic form listing each
Participation Certificate Granted to the Trust Estate and any other information required in any related Indenture Supplement; 

(iii) a copy of each Funding Certification delivered by the Administrator, which shall be maintained in electronic format; 

  
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 (iv) the current Participation Certificate Schedule; and 

(v) any other documentation provided for in any Indenture Supplement; 

provided that the Indenture Trustee shall have no responsibility to ensure the validity or sufficiency of the Participation Certificates. 

(b) Administrator as Custodian. To reduce administrative costs, the Administrator will act as custodian for the benefit of the
Noteholders of the following documents relating to each Participation Certificate: 
 (i) a copy of the related Participation
Certificate and each amendment and modification thereto; 
 (ii) any documents other than those identified in
Section 2.2(a) received from or made available by the Servicer, securities administrator or other similar party in respect of such Participation Certificate; and 

(iii) any and all other documents that the Issuer, the Servicer or PMC, as the case may be, shall keep on file, in accordance
with its customary procedures, relating to such Participation Certificate. 
 (c) Delivery of Updated Participation Certificate Schedule
and Eligible Securities Schedule. 
 (i) The Administrator shall deliver to the Indenture Trustee an updated
Participation Certificate Schedule prior to the addition, modification or deletion of any Participation Certificate as Collateral and the Indenture Trustee shall hold the most recently delivered version as the definitive Participation Certificate
Schedule. The Administrator represents and warrants, as of the date hereof and as of the date any new Participation Certificate is added as Collateral, that the Participation Certificate Schedule, as it may be updated by the Administrator from time
to time and delivered to the Indenture Trustee, is a true, complete and accurate list of all Participation Certificates. 

(ii) The Administrator shall deliver to the Indenture Trustee an updated schedule of Eligible Securities prior to the addition,
modification or deletion of any Eligible Security as Collateral and the Indenture Trustee shall hold the most recently delivered version as the definitive schedule. The Administrator represents and warrants, as of the date hereof and as of the date
any new Eligible Security is added as Collateral, that the schedule of Eligible Securities, as it may be updated by the Administrator from time to time and delivered to the Indenture Trustee, is a true, complete and accurate list of all Eligible
Securities. 
 (d) Marking of Records. The Administrator shall ensure that, from and after the time of the sale or contribution of
the Participation Certificates to the Issuer under the PC Repurchase Agreement and the Grant thereof to the Indenture Trustee pursuant to this Base Indenture, any records (including any computer records and
back-up archives) maintained by or on behalf of the 

  
 17 

 
Servicer that refer to any Participation Certificate indicate clearly the interest of the Issuer and the Security Interest of the Indenture Trustee in such Participation Certificate and that such
Participation Certificate is owned by the Issuer and subject to the Indenture Trustee’s Security Interest. Indication of the Issuer’s ownership of a Participation Certificate and the Security Interest of the Indenture Trustee shall be
deleted from or modified on such records when, and only when, such Participation Certificate has been paid in full, repurchased, or assigned by the Issuer and released by the Indenture Trustee from its Security Interest. 

(e) Custodian. PMC, as Repo Seller, the Issuer and the Administrative Agent each confirm, and each Noteholder is deemed to confirm,
that it is treating Citibank, in its capacity as a Custodian, as holding each original Participation Certificate as a “custodian” on behalf of the Issuer as a “customer” in connection with a “securities contract” (as
each such term is used in Section 101(22) of the Bankruptcy Code), and each such Person confirms (or is deemed to confirm, in the case of the Noteholders) that in such capacity Citibank is serving as a “financial institution” (as
defined in Section 101(22) of the Bankruptcy Code). Citibank confirms that it is a “commercial bank” (as such term is used in such Section 101(22) and acknowledges such treatment by such Persons. 

Section 2.3. Duties of Custodian with Respect to the Asset Files. 

(a) Safekeeping. The Indenture Trustee or the Administrator, in its capacity as custodian (each, a “Custodian”)
pursuant to Section 2.2(b), shall hold the portion of the Asset Files that it is required to maintain under Section 2.2 in its possession from time to time for the use and benefit of all present
and future Noteholders, and maintain such accurate and complete accounts, records and computer systems pertaining to each Asset File as shall enable the Calculation Agent and the Indenture Trustee to comply with this Base Indenture. Each Custodian
shall promptly report to the Issuer any failure on its part to hold the Asset Files and maintain its accounts, records and computer systems as herein provided and promptly take appropriate action to remedy any such failure. The Indenture Trustee
shall have no responsibility or liability for any actions or omissions of the Administrator in its capacity as Custodian or otherwise. 

(b) Maintenance of and Access to Records. Each Custodian shall maintain each portion of the Asset File that it is required to maintain
under this Base Indenture at its offices at the Corporate Trust Office (in the case of the Indenture Trustee) or 3043 Townsgate Road, Suite 300, Westlake Village, CA 91361 (in the case of the Servicer) as the case may be, or at such other office as
shall be specified to the Indenture Trustee and the Issuer by thirty (30) days’ prior written notice. The Administrator shall take all actions necessary, or reasonably requested by the Administrative Agent, the Majority Noteholders of all
Outstanding Notes or the Indenture Trustee, to amend any existing financing statements and continuation statements, and file additional financing statements to further perfect or evidence the rights, claims or security interests of the Indenture
Trustee under any of the Transaction Documents (including the rights, claims or security interests of the Issuer under the PC Repurchase Agreement which have been assigned to the Indenture Trustee). The Indenture Trustee and the Administrator, in
their capacities as Custodian(s), shall make available to the Issuer, the Calculation Agent, the Administrative Agent, any group of Interested Noteholders and the Indenture Trustee (in the case of the Administrator) or their duly authorized
representatives, attorneys or auditors the portion of the Asset Files that it 

  
 18 

 
is required to maintain under this Base Indenture and the accounts, books and records maintained by the Indenture Trustee or the Administrator with respect thereto as promptly as reasonably
practicable following not less than two (2) Business Days’ prior written notice for examination during normal business hours and in a manner that does not unreasonably interfere with such Person’s ordinary conduct of business. 

Neither a Custodian nor any of its directors, officers or employees shall be liable to anyone for any error of judgment, or for any act done
or step taken or omitted to be taken by it (or any of its directors, officers of employees), or for any mistake of fact or law, or for anything which it may do or refrain from doing in connection herewith, unless such action constitutes gross
negligence, willful misconduct or bad faith of such Custodian. Knowledge or information acquired by Citibank in its capacity as Custodian hereunder shall not be imputed to Citibank in any other capacity in which it may act hereunder or to any
affiliate of Citibank and vice versa. The Custodian shall be deemed to have the same rights, immunities and protections as the Indenture Trustee hereunder, except that the Custodian shall not be subject to a prudent person standard under any
circumstances. 
 Section 2.4. Application of Trust Money. 

All money deposited with the Indenture Trustee or the Paying Agent pursuant to Section 4.2 shall be held in trust and
applied by the Indenture Trustee or the Paying Agent, as the case may be, in accordance with the provisions of the Notes and this Base Indenture, to the payment to the Persons entitled thereto, of the principal, interest, fees, costs and expenses
(or payments in respect of the Funding Amount or other amount) for whose payment such money has been deposited with the Indenture Trustee or the Paying Agent. 

Article III 

Administration of Participation Certificates; Reporting to Investors 

Section 3.1. Duties of the Calculation Agent. 

(a) General. The Calculation Agent shall initially be Citibank. The Calculation Agent is appointed for the purpose of making
calculations and verifications as provided in this Section 3.1(a). The Calculation Agent, as agent for the Noteholders, shall provide all services necessary to fulfill the role of Calculation Agent as set forth in this Base
Indenture. 
 By no later than 1:00 p.m. New York City time on the first (1st) Business Day prior to each Interim Payment
Date or Payment Date, as applicable, the Administrator shall prepare and deliver to the Calculation Agent, the Indenture Trustee, the Paying Agent, the Administrative Agent and the VFN Noteholders a report (the “Administrator’s
Calculation Report”) containing the detailed information described in this Section 3.1(a) and pursuant to Section 3.2(b). 

By 2:00 p.m. New York City time on each Payment Date (or such other time as may be agreed to from time to time by the Servicer,
the Administrator, the Indenture 

  
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Trustee and the Administrative Agent), based upon the Administrator’s Calculation Report and any additional information provided to the Indenture Trustee and the Calculation Agent by the
Administrator pursuant to the Fannie Mae Lender Contract and the Transaction Documents, as well as each applicable Determination Date Report, all available reports issued by the Servicer, the Market Value Report issued by the MSR Valuation Agent and
any report issued as to the Market Value of any Eligible Securities (to the extent any Eligible Securities are on deposit in the Eligible Securities Account) as of the Determination Date, the Calculation Agent shall perform certain calculations and
verifications as follows: 
 (i) an indication (yes or no) as to whether a Borrowing Base Deficiency exists as of the close
of business on the last day of the related Collection Period preceding the upcoming Payment Date; 
 (ii) if the Full
Amortization Period is in effect, the Series Available Funds for each Series for the upcoming Payment Date; 
 (iii) if
required by any VFN Noteholder, the aggregate Funding Amount to be paid on the upcoming Funding Date, and the amount to be drawn on each Class of VFNs Outstanding in respect of such Funding Amount, and the portion of such Funding Amount that is
to be paid using Available Funds pursuant to Section 4.5(a)(1)(viii); 
 (iv) if any Note is
Outstanding, the amount, if any, to be paid on each such Class in reduction of the aggregate principal balance on the upcoming Payment Date; 

(v) the amount of Fees to be paid on the upcoming Payment Date, the amount remaining before the applicable Expense Limit is
reached (before and after giving effect to such payments), and, if applicable, any amounts in excess of the Expense Limit to be carried forward to a subsequent year or Payment Date; 

(vi) the Required Available Funds, the Expense Reserve Required Amount and the Series Reserve Required Amount, if applicable,
for each Series of Notes for the upcoming Payment Date; 
 (vii) the Weighted Average Advance Rate for the facility to be
used in calculating whether a Borrowing Base Deficiency exists and for each Series and Class of Variable Funding Notes; 

(viii) the Series Invested Amount and, if applicable, the Class Invested Amount for each Series and Class for the
upcoming Payment Date; 
 (ix) the Interest Payment Amount, the Default Supplemental Fee and the Step- Up Fee for each
Class of Outstanding Notes for the upcoming Payment Date, and the Interest Amount, the Cumulative Interest Shortfall Amount, the Cumulative Default Supplemental Fee Shortfall Amount and the Cumulative
Step-Up Fee Shortfall Amount for each Class of Notes for the Interest Accrual Period related to the upcoming Payment Date; 

  
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 (x) an indication (yes or no) as to whether an Advance Rate Trigger Event,
Early Amortization Event or Event of Default hereunder has occurred; and 
 (xi) verification of the calculation of the
Stop-Loss Cap and the Stop-Loss Cap Required Amount for the upcoming Payment Date as of the last day of the immediately preceding month, which shall be calculated by PMC on a monthly basis and on a quarterly basis will be calculated using the SDQ
Rate provided by Fannie Mae for such quarter to the extent available from Fannie Mae. 
 The Calculation Agent does not receive any loan
data or financial information independent from what is supplied to it by the Administrator. Thus, any components of the calculations or verifications to be performed by the Calculation Agent that require loan data information, including pool
balance, SDQ balance, and non-SDQ loan balances, as well as any financial statement data (including any PIPs), are taken as provided by the Administrator without verification or recalculation. 

(b) Termination of Calculation Agent. The Issuer (with the consent of the Majority Noteholders for each Series) may at any time
terminate the Calculation Agent without cause upon sixty (60) days’ prior notice. If at any time the Calculation Agent shall fail to resign after written request therefor as set forth in this Section 3.1(b), or if at any time the
Calculation Agent shall be legally unable to act, or shall be adjudged bankrupt or insolvent, or a receiver of the Calculation Agent or of its property shall be appointed, or if any public officer shall take charge or Control of the Calculation
Agent or of its property or affairs for the purpose of rehabilitation, conservation or liquidation, then the Majority Noteholders of all Outstanding Notes may remove the Calculation Agent and if the same entity serves as both Calculation Agent and
Indenture Trustee, the Majority Noteholders of all Outstanding Notes shall also remove the Indenture Trustee as provided in Section 11.9(c). If the Calculation Agent resigns or is removed under the authority of the immediately preceding
sentence, then a successor Calculation Agent shall be appointed pursuant to Section 11.9. The Issuer shall give each Note Rating Agency and the Noteholders notice of any such resignation or removal of the Calculation Agent and appointment and
acceptance of a successor Calculation Agent. Notwithstanding the foregoing, no resignation, removal or termination of the Calculation Agent shall be effective until the resignation, removal or termination of the predecessor Calculation Agent and
until the acceptance of appointment by the successor Calculation Agent as provided herein. Any successor Indenture Trustee appointed shall also be the successor Calculation Agent hereunder, if the predecessor Indenture Trustee served as Calculation
Agent and no separate Calculation Agent is appointed. Notwithstanding anything to the contrary herein, the Indenture Trustee may not resign as Calculation Agent unless it also resigns as Indenture Trustee pursuant to Section 11.9(b). 

(c) Successor Calculation Agents. Any successor Calculation Agent appointed hereunder shall execute, acknowledge and deliver to the
Issuer and to its predecessor Calculation Agent an instrument accepting such appointment under this Base Indenture, and thereupon the resignation or removal of the predecessor Calculation Agent shall become effective and such

  
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successor Calculation Agent, without any further act, deed or conveyance, shall become fully vested with all the rights, powers, duties and obligations of its predecessor under this Base
Indenture, with like effect as if originally named as Calculation Agent. The predecessor Calculation Agent shall deliver to the successor Calculation Agent all documents and statements held by it under this Base Indenture. The Issuer and the
predecessor Calculation Agent shall execute and deliver such instruments and do such other things as may reasonably be required for fully and certainly vesting and confirming in the successor Calculation Agent all such rights, powers, duties and
obligations. Upon acceptance of appointment by a successor Calculation Agent as provided in this Section 3.1, the Issuer shall mail notice of the succession of such successor Calculation Agent under this Base Indenture to
all Noteholders at their addresses as shown in the Note Register and shall give notice by mail to each applicable Note Rating Agency. If the Issuer fails to mail such notice within ten (10) days after acceptance of appointment by the successor
Calculation Agent, the successor Calculation Agent shall cause such notice to be mailed at the expense of the Administrator. 
 Section 3.2.
Reports by Administrator and Indenture Trustee. 
 (a) Determination Dates; Determination Date Reports. The Indenture
Trustee shall report to the Administrator, by no later than 2:00 p.m. New York City time on the second (2nd) Business Day before each Funding Date (or such other time as may be agreed to from time to time by Administrator, the Indenture Trustee and
the Administrative Agent), the amount of Available Funds that will be available to be applied toward Funding Amounts or to pay principal on any applicable Notes on the upcoming Payment Date or Interim Payment Date. If the Administrator supplies no
information to the Indenture Trustee in its Determination Date Report concerning Funding Amounts or payments on any Variable Funding Note in respect of an Interim Payment Date, then the Indenture Trustee shall apply no Available Funds to pay Funding
Amounts or to make payment on any Note on such Interim Payment Date, unless an Event of Default has occurred and is continuing, in which case the Indenture Trustee shall apply the Available Funds pursuant to
Section 4.5(a)(ii). 
 By no later than 10:00 a.m. New York City time on the first (1st) Business Day prior to each
Funding Date that is an Interim Payment Date and by no later than 2:00 p.m. New York City time on the second (2nd) Business Day prior to each Funding Date that is a Payment Date (or such other time as may be agreed to from time to time by the
Administrator, the Indenture Trustee and the Administrative Agent), the Administrator shall prepare and deliver to the Issuer, the Indenture Trustee, the Calculation Agent, the Administrative Agent, each VFN Noteholder and the Paying Agent a report
(the “Determination Date Report”) (in electronic form) setting forth (i) each data item required to be reported pursuant to Section 4.3, (ii) the information reported in the Administrator’s
Calculation Report, and (iii) any additional information necessary to prepare the Payment Date Report pursuant to Section 3.2(b). 

(b) Payment Date Report. By 2:00 p.m. New York City time on each Payment Date (or such other time as may be agreed to from time to time
by the Servicer, the Administrator, the Indenture Trustee and the Administrative Agent), based upon information provided to the Indenture Trustee and the Calculation Agent by the Administrator pursuant to the Fannie Mae Lender Contract and the
Transaction Documents and contained in the Administrator’s Calculation 

  
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Report, as well as each applicable Determination Date Report, all available reports issued by the Servicer, the Market Value Report issued by the MSR Valuation Agent and any report issued as to
the Market Value of any Eligible Securities (to the extent any Eligible Securities are on deposit in the Eligible Securities Account) as of the Determination Date, the Indenture Trustee shall make available on its website to the Issuer, the
Calculation Agent, the Administrator, the Paying Agent, the Administrative Agent, each Noteholder and each Note Rating Agency, and solely during the Default Period, the Disposition Manager, a report (the “Payment Date
Report”) reporting the following for such Payment Date and the related Collection Period preceding such Payment Date: 

(i) the amount of Available Funds and Required Available Funds for such Payment Date (segregating out any cash amounts that are
on deposit in the Collection and Funding Account which the Administrator has instructed the Indenture Trustee to use in accordance with Section 4.5(a)(1)(viii)); 

(ii) (A) the aggregate amount of all Collections received and deposited into the Collection and Funding Account during such
Collection Period and (B) the Total Collections for such Payment Date; 
 (iii) all Funding Amounts paid during such
Collection Period separately identifying the portion thereof paid from funds in the Collection and Funding Account and the portion thereof paid using proceeds of fundings of an increase in VFN Principal Balance(s) for each Class of VFNs; 

(iv) the amount on deposit in any Trust Accounts set forth under any Indenture Supplement as of the close of business on the
last Payment Date; 
 (v) the amount on deposit in the Series Reserve Account for each Series, and, if applicable, the amount
the Indenture Trustee is to withdraw from each such Series Reserve Account and deposit into the Note Payment Account on such Payment Date for application to the related Series of Notes; 

(vi) the amount on deposit in the Expense Reserve Account, and, if applicable, the amount the Indenture Trustee is to withdraw
from the Expense Reserve Account and deposit into the Note Payment Account on such Payment Date for application to the related Series of Notes; 

(vii) the amount of each payment required to be made by the Indenture Trustee or the Paying Agent pursuant to
Section 4.5 on such Payment Date; 
 (viii) the unpaid Note Balance for each Class and Series
of Notes and for all Outstanding Notes in the aggregate (before and after giving effect to any principal payments to be made on such Payment Date); 

(ix) a statement indicating whether a Borrowing Base Deficiency existed at such time and whether it will exist as of the close
of business on such Payment Date after all payments and distributions described in Section 4.5(a); 

  
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 (x) any Eligible Securities as of the Determination Date and the unpaid
principal balance of the Portfolio; 
 (xi) (A) the aggregate Available Funds collected, separately identifying (1) the
aggregate Retained MSR Excess Spread, Retained MSR Excess Spread Collections, the Sold MSR Excess Spread and the Total Collections included therein, and (2) the aggregate amount of proceeds collected during the Collection Period preceding the
upcoming Payment Date for all Participation Certificates less any amounts distributed on any Interim Payment Date during such Collection Period; and (B) separately identifying any PMH Repurchase Price, PMC Repurchase Price and any payments
under the PC Repo Guaranty; and 
 (xii) an indication (yes or no) as to whether Servicer is in compliance with the following
Fannie Mae servicer eligibility requirements (collectively, the “Fannie Mae Eligibility Requirements”): 

(A) its Lender Adjusted Net Worth is equal to or greater than the lender adjusted net worth required by the Fannie Mae Lender
Contract; 
 (B) its Lender Adjusted Net Worth to total assets ratio is equal to or less than the minimum capital required
by the Fannie Mae Lender Contract; 
 (C) its Liquidity is equal to or greater than the liquidity requirement set forth in
the Fannie Mae Lender Contract; and 
 (D) an indication (yes or no) as to whether a Servicer Termination Event has
occurred. 
 The Payment Date Report shall also state any other information required pursuant to any related Indenture
Supplement necessary for the Paying Agent and the Indenture Trustee to make the payments required by Section 4.5(a) and all information necessary for the Indenture Trustee to make available to Noteholders pursuant to
Section 3.5. 
 On each day on which a Payment Date Report is to be delivered, PMC shall deliver to
the Indenture Trustee a certification substantially in the form attached hereto as Exhibit F. 
 Noteholders of
any Series of Term Notes shall receive solely the Payment Date Report and shall not receive the Market Value Report prepared by the MSR Valuation Agent. 

(c) Interim Payment Date Reports. By no later than 3:00 p.m. New York City time on each Interim Payment Date on which there is a VFN
Outstanding and on which the Full Amortization Periods have not yet begun and on which payments pursuant to clause (iii) with respect to a Class of Notes are being made, the Indenture Trustee shall prepare and deliver to the Issuer, the
Calculation Agent, the Administrator, the Paying Agent, the Administrative Agent and 

  
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each VFN Noteholder a report (an “Interim Payment Date Report”) in electronic form, setting forth the following for such Interim Payment Date and the Collection Period
preceding such Interim Payment Date: 
 (i) the amount of Available Funds and Required Available Funds for such Interim
Payment Date; 
 (ii) the aggregate amount of all Collections received and deposited into the Collection and Funding Account
during such Collection Period; 
 (iii) the total of all (A) payments in respect of each Class of Notes (separately
identifying interest and principal paid on each Class of Variable Funding Notes) made on the Interim Payment Date that occurred during such Collection Period, (B) all Funding Amounts that were paid in respect of any Participation
Certificate created or acquired on or after the Cut-off Date and sold by PMC to the Issuer under the PC Repurchase Agreement during such Collection Period, separately identifying the portion thereof paid from
funds on deposit in the Collection and Funding Account and the portion thereof paid using proceeds of an increase in VFN Principal Balance(s) for each Class of VFNs, and (C) all Net Excess Cash Amounts paid to the holder of the Owner Trust
Certificate on the Interim Payment Date that occurred during such Collection Period; 
 (iv) the amount on deposit in the
Series Reserve Account for each Series and the Series Reserve Required Amount for such Series Reserve Account, if applicable, and the amount to be deposited into each Series Reserve Account on such Interim Payment Date, if applicable; 

(v) the amount on deposit in the Expense Reserve Account for each Series and the Expense Reserve Required Amount for the
Expense Reserve Account and the amount to be deposited into the Expense Reserve Account on such Interim Payment Date, if applicable; 

(vi) the amounts required to be deposited on such Interim Payment Date into any other Trust Account referenced in any related
Indenture Supplement; 
 (vii) (A) the Collateral Value as of the end of such Collection Period and as of the close of
business on such Interim Payment Date for each Outstanding Series of Notes, and (B) a calculation demonstrating whether a Borrowing Base Deficiency exists; and 

(viii) any other amounts specified in an Indenture Supplement. 

On each day on which an Interim Payment Date Report is to be delivered, PMC shall deliver to the Indenture Trustee a certification
substantially in the form attached hereto as Exhibit F. 
 (d) No Duty to Verify or Recalculate. Notwithstanding
anything contained herein to the contrary, none of the Calculation Agent (except as described in Section 3.1(a)), the Indenture Trustee or the Paying Agent shall have any obligation to verify or recalculate any information

  
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provided to them by the Administrator or any other Person, and may rely on such information in making the allocations and payments to be made pursuant to Article IV. The Indenture Trustee
may conclusively rely without investigation on the most recent Determination Date Report provided to the Indenture Trustee by the Administrator in preparing the Determination Date Reports and Interim Payment Date Reports (if any). 

Section 3.3. Annual Statement as to Compliance; Notice of Default; Reports. 

(a) Annual Officer’s Certificates. 

(i) The Servicer shall deliver to each Note Rating Agency and the Indenture Trustee, on or before March 31 of each year,
beginning on March 31, 2018, an Officer’s Certificate of the Servicer, executed by a Responsible Officer, stating that (A) a review of the activities of the Servicer during the preceding
12-month period ended December 31 (or, in the case of the first such statement, from the Closing Date through December 31, 2017) and of its performance under this Base Indenture and the PC Repurchase
Agreement has been made under the supervision of the officer executing the Officer’s Certificate, and (B) PMC has fulfilled all its obligations under this Base Indenture and the PC Repurchase Agreement in all material respects throughout
such period or, if there has been a default in the fulfillment of any such obligation, specifying each such default and the nature and status thereof. 

(ii) The Administrator shall deliver to each Note Rating Agency and the Indenture Trustee, on or before March 31 of each
year, beginning on March 31, 2018, an Officer’s Certificate executed by a Responsible Officer of the Administrator, stating that (A) a review of the activities of the Issuer and the Administrator during the preceding 12- month period ended December 31 (or, in the case of the first such statement, from the Closing Date through December 31, 2017) and of its performance under this Base Indenture and the PC Repurchase
Agreement has been made under the supervision of the officer executing the Officer’s Certificate, and (B) the Administrator has fulfilled all its obligations under this Base Indenture in all material respects throughout such period or, if
there has been a default in the fulfillment of any such obligation, specifying each such default and the nature and status thereof. 
 (b)
Notice of Advance Rate Trigger Event, Early Amortization Event or Event of Default. The Indenture Trustee shall deliver to the Noteholders, the Issuer, the Disposition Manager, Fannie Mae (in connection with an Event of Default only) and each
Note Rating Agency, promptly after a Responsible Officer has obtained actual knowledge thereof, but in no event later than five (5) Business Days thereafter or such shorter time period as may be required by any Note Rating Agency, written
notice specifying the nature and status of any Advance Rate Trigger Event, Early Amortization Event or any Event of Default, as applicable. 

(c) Annual Regulation AB/USAP Report. The Servicer shall, on or before the last Business Day of the fifth month following the end of
each of the Servicer’s fiscal years (December 31), beginning with the fiscal year ending on December 31, 2017, deliver to the Indenture Trustee who shall forward to each Noteholder a copy of the results of any Regulation AB required
attestation report or Uniform Single Attestation Program for Mortgage Bankers or similar review conducted on the Servicer by its accountants and any other reports reasonably requested by the Administrative Agent, including any notices from Fannie
Mae. 

  
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 (d) Annual Lien Opinion. Within one hundred (100) days after the end of each
fiscal year of the Administrator, beginning with the fiscal year ending on December 31, 2017, the Administrator shall deliver to the Indenture Trustee an Opinion of Counsel from outside counsel to the effect that, subject to the Acknowledgment
Agreement and the Fannie Mae Requirements, the Indenture Trustee has a perfected security interest in the Participation Certificates identified in an exhibit to such opinion, and that, based on a review of UCC search reports (copies of which shall
be attached thereto) and review of other certifications and other materials, there are no UCC-1 filings indicating an Adverse Claim with respect to such Participation Certificates that has not been released.

 (e) Other Information. In addition, the Administrator shall forward to the Administrative Agent, upon its reasonable request, such
other information, documents, records or reports respecting (i) PMC or any of its Affiliates party to the Transaction Documents, (ii) the condition or operations, financial or otherwise, of PMC or any of its Affiliates party to the
Transaction Documents, (iii) the Fannie Mae Lender Contract, the related Mortgage Loans and the Participation Certificates or (iv) the transactions contemplated by the Transaction Documents, including access to the Servicer’s
management and records. The Administrative Agent shall and shall cause its respective representatives to hold in confidence all such information except to the extent disclosure may be required by law (and all reasonable applications for confidential
treatment are unavailing) or the Administrative Agent may reasonably determine that such disclosure is consistent with its obligations hereunder; provided, however, that the Administrative Agent may disclose on a confidential basis any
such information to its agents, attorneys and auditors in connection with the performance of its responsibilities hereunder. 
 (f) MSR
Monthly Report. On a monthly basis and in no event later than the fifteenth (15th) day of each month (or, if such day is not a Business Day, the Business Day following such day), PMC shall deliver to the Indenture Trustee and the MSR Valuation
Agent the monthly data file with respect to all Mortgage Loans (the “MSR Monthly Report”) subject to the terms and conditions of this Base Indenture, which shall include all updates to the Mortgage Loans as of the last day of
the immediately preceding month. 
 (g) Market Value Report. The MSR Valuation Agent shall calculate the fair market value and the
valuation percentage of the MSRs, the Portfolio Excess Spread and the Base Servicing Fee on each Borrowing Base Determination Date in accordance with the MSR Valuation Agent Agreement. The MSR Valuation Agent shall deliver to the Indenture Trustee,
the Servicer, the Administrator, the Administrative Agent and the Disposition Manager, a monthly report (the “Market Value Report”) no later than the Determination Date prior to the related Payment Date, stating (i) the
fair market value and the valuation percentage of the MSRs, the Portfolio Excess Spread and the Base Servicing Fee as of the related Borrowing Base Determination Date, and (ii) the fair market value and the valuation percentage of the MSRs,
which assumes that the 10-year U.S. Treasury rate (mid-mark) declines or increases by more than 0.375% from the 10-year U.S.
Treasury rate (mid-mark) as of the most recent Borrowing Base Determination Date (as determined by the MSR Valuation Agent). 

  
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 (h) In the event that the MSR Valuation Agent does not provide its Market Value Report by
the Determination Date for two (2) consecutive months, PMC shall be required to terminate the MSR Valuation Agent and appoint a replacement MSR Valuation Agent who shall be (i) an eligible MSR Valuation Agent and (ii) required to
deliver a Market Value Report no later than the tenth (10th) day of the month immediately following appointment of the replacement MSR Valuation Agent. 

(i) MSR Valuation Agent. PMC shall have the right to remove and replace the MSR Valuation Agent without cause with prior written
consent of the Administrative Agent. 
 (j) Disposition Manager. The Disposition Manager will have the duties specifically set forth
in the Disposition Management Agreement, including a requirement to assist in the engagement of an appropriate third party broker (such broker, the “MSR Sales Agent”) and coordinate the sale of the MSRs in accordance with the
rights and responsibilities of the Indenture Trustee as secured party under the Acknowledgment Agreement. Prior to the occurrence and continuation of an Event of Default, PMC shall have the right to remove and replace the Disposition Manager without
cause with prior written consent of the Administrative Agent and Fannie Mae. The Disposition Manager shall have the right to resign under the circumstances described in the Disposition Management Agreement. No resignation or removal of the
Disposition Manager and no appointment of a successor Disposition Manager will become effective until the acceptance of appointment by a successor Disposition Manager. Pursuant to the Disposition Management Agreement, if no successor Disposition
Manager shall have been appointed and shall have accepted appointment within sixty (60) days after the giving of a notice of resignation, the resigning Disposition Manager may petition any court of competent jurisdiction for the appointment of
a successor Disposition Manager, and the costs of the Disposition Manager in connection with such petition shall be reimbursable in accordance with the Disposition Management Agreement. Notwithstanding anything in this Base Indenture to the
contrary, in the event of any conflict between this Base Indenture (or any provision of this Base Indenture) and the Disposition Management Agreement, the terms of the Disposition Management Agreement shall prevail. 

Section 3.4. Access to Certain Documentation and Information. 

(a) Access to Information. 

Notwithstanding anything to the contrary contained in this Section 3.4, Section 2.3, or in any other Section hereof, the Servicer,
on reasonable prior written notice (of not less than five (5) Business Days), shall permit the Administrative Agent, the Indenture Trustee, the MSR Valuation Agent or any agent or independent certified public accountants selected by the
Indenture Trustee, during the Servicer’s normal business hours, and in a manner that does not unreasonably interfere with the Servicer’s conduct of its regular business, to examine all the books of account, records, reports and other
papers of the Servicer relating to the Portfolio Mortgage Loans, Fannie Mae Lender Contract and the Participation Certificates, to make copies and extracts therefrom, and to discuss the Servicer’s affairs, finances and accounts relating to the
Portfolio Mortgage Loans, Fannie Mae Lender Contract and the Participation Certificates with the Servicer’s officers and 

  
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employees, all at such times and as often as reasonably may be requested; provided that any such Person seeking access to any information or documentation pursuant to this Section 3.4(a) has
agreed with the Servicer to be bound by any confidentiality provisions reasonably requested by the Servicer and shall upon request execute and deliver a separate confidentiality agreement memorializing such provisions. Unless an Event of Default
that has not been waived in accordance with the terms hereof shall have occurred, any out-of-pocket costs and expenses incident to the exercise by the Indenture Trustee
or any Noteholder of any right under this Section 3.4 shall be borne by the requesting Noteholder(s). The parties hereto acknowledge that the Indenture Trustee shall not exercise any right pursuant to this Section 3.4 prior to any event
set forth in the preceding sentence unless directed to do so by a group of Interested Noteholders, and the Indenture Trustee has been provided with indemnity satisfactory to it by such Interested Noteholders. The Indenture Trustee shall have no
liability for action or inaction in accordance with the preceding sentence. 
 In the event that such rights are exercised following the
occurrence of an Event of Default that has not been waived in accordance with the terms hereof and is continuing, all reasonable and customary out-of-pocket costs and
expenses actually incurred by the Indenture Trustee shall be borne by PMC. Prior to any such payment, PMC shall be provided with commercially reasonable documentation of such costs and expenses. Notwithstanding anything contained in this Section 3.4
to the contrary, in no event shall the books of account, records, reports and other papers of PMC or the Issuer relating to the Portfolio Mortgage Loans and the Participation Certificates be examined by independent certified public accountants at
the direction of the Indenture Trustee or any Interested Noteholder pursuant to the exercise of any right under this Section 3.4 more than one time during any 12 month period at the expense of the Administrator, unless an Event of Default has
occurred that has not been waived in accordance with the terms hereof during such twelve-month period, in which case more than one examination may be conducted during a twelve-month period, but such extra audits shall be at the sole expense of the
Noteholder(s) requesting such audit(s). 
 (b) Access to Issuer. The Issuer agrees that, on reasonable prior notice, it will permit
any representative of the Indenture Trustee (at the written direction of the Majority Noteholders), the MSR Valuation Agent or the Administrative Agent at the expense of the Administrator no more than one time during any 12-month period (unless an Event of Default has occurred that has not been waived in accordance with the terms hereof during such twelve-month period, in which case more than one examination may be conducted during
a twelve-month period, but such extra audits shall be at the sole expense of the party requesting such audit(s)), to examine all of its books of account, records, reports, and other papers, to make copies and extracts therefrom, to cause such books
to be audited by independent certified public accountants, and to discuss its affairs, finances and accounts its officers, employees, and independent certified public accountants, all at such reasonable times and as often as may be reasonably
requested. The Indenture Trustee, the MSR Valuation Agent and the Administrative Agent shall and shall cause their respective representatives to hold in confidence all such information except to the extent disclosure may be required by law (and all
reasonable applications for confidential treatment are unavailing) or the Indenture Trustee, the MSR Valuation Agent or the Administrative Agent, as applicable, may reasonably determine that such disclosure is consistent with its obligations
hereunder; provided, however, that the Indenture Trustee may disclose on a confidential basis any such information to its agents, attorneys and auditors in connection with the performance of its responsibilities hereunder. Without
limiting the generality of the foregoing, neither the Indenture Trustee, the MSR 

  
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Valuation Agent or the Administrative Agent shall disclose information to any of its Affiliates or any of their respective directors, officers, employees and agents, that may provide any servicer
advance financing to PMC, the Issuer or any of their Affiliates, except in such Affiliate’s capacity as Noteholder. 
 Section 3.5.
Indenture Trustee to Make Reports Available. 
 (a) Monthly Reports on Indenture Trustee’s Website. Notwithstanding
any other provision of this Base Indenture that requires Citibank, in any capacity, to deliver or provide to any Person the Payment Date Report (and, at its option, any additional files containing the same information in an alternative format),
Citibank, in any capacity, shall be entitled, in lieu of such delivery, to make such report available each month to any interested parties, including Fannie Mae, via the Indenture Trustee’s internet website and such other information as the
Indenture Trustee may have in its possession, but only with the use of a password provided by the Indenture Trustee. In connection with providing access to the Indenture Trustee’s internet website, the Indenture Trustee may require registration
and the acceptance of a disclaimer. The Indenture Trustee’s internet website shall initially be located at www.sf.citidirect.com. Assistance in using the Indenture Trustee’s website can be obtained by calling the Indenture Trustee’s
investor relations desk at 1-888-855-9695. Parties that are unable to use the above distribution option are entitled to have a
paper copy mailed to them via first class mail or by overnight courier by calling the investor relations desk and requesting a copy. The Indenture Trustee shall have the right to change the way the Payment Date Reports are distributed in order to
make such distribution more convenient and/or more accessible to the above parties and the Indenture Trustee shall provide timely and adequate notification to all above parties regarding any such changes. The Indenture Trustee shall not be required
to make available via its website any information that in its judgment is confidential, may include any Nonpublic Personal Information or could otherwise violate applicable law, or could result in personal liability to the Indenture Trustee. In
addition, the Indenture Trustee shall have no liability for the failure to include or post any information that it has not actually received or is not in a form or format that will allow it to post any such information on its website. 

(b) Notwithstanding any provision herein to the contrary, including Sections 3.1, 3.2 and 3.5 hereof, the Indenture
Trustee, the Administrative Agent and any other party hereto shall not deliver, or make available, the Market Value Information to any Noteholder of any Series of Term Notes prior to the occurrence, or following the cure or waiver, of an Event of
Default; and prior to the occurrence, or during the continuation, of an Event of Default, any Determination Date Report, Interim Payment Date Report, Payment Date Report made available to any Noteholders of Outstanding Series of Term Notes by
Citibank, in any capacity, pursuant to this Section 3.5 or otherwise hereunder shall be redacted to remove any Market Value Information prior to being made so available. 

(c) Annual Reports. Within sixty (60) days after the end of each year, the Indenture Trustee shall furnish to each Person (upon
the written request of such Person), who at any time during the year was a Noteholder a statement containing (i) information regarding payments of principal, interest and other amounts on such Person’s Notes, aggregated for such year or
the applicable portion thereof during which such person was a Noteholder and (ii) such other 

  
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customary information as may be deemed necessary or desirable for Noteholders to prepare their tax returns. Such obligation shall be deemed to have been satisfied to the extent that substantially
comparable information is provided pursuant to any requirements of the Code as are from time to time in force. The Indenture Trustee shall prepare and provide to the Internal Revenue Service and to each Noteholder any information reports required to
be provided under federal income tax law, including IRS Form 1099. 
 Article IV 

The Trust Accounts; Payments 

Section 4.1. Trust Accounts. 

The Indenture Trustee shall establish and maintain, or cause to be established and maintained, (i) the Trust Accounts (other than the
Expense Reserve Account), each of which shall be an Eligible Account, for the benefit of the Secured Parties, and (ii) an Expense Reserve Account, which shall be an Eligible Account, for the benefit of the Indenture Trustee and the MSR
Valuation Agent. All amounts held in the Trust Accounts shall, to the extent permitted by this Base Indenture and applicable laws, rules and regulations, be invested in Permitted Investments by the depository institution or trust company then
maintaining such Trust Account only upon written direction of the Administrator to the Indenture Trustee; provided, however, that in the event the Administrator fails to provide such written direction to the Indenture Trustee, and
until the Administrator provides such written direction, the Indenture Trustee shall not invest funds on deposit in any Trust Account. Funds deposited into a Trust Account on a Business Day after 1:30 p.m. New York City time will not be invested
until the following Business Day. Investments held in Permitted Investments in the Trust Accounts shall not be sold or disposed of prior to their maturity (unless an Event of Default has occurred). Earnings on investment of funds in any Trust
Account shall be remitted by the Indenture Trustee upon the Administrator’s request to the account or other location of the Administrator’s designation on the first (1st) Business Day of the month following the month in which such earnings
on investment of funds is received. Any losses and investment expenses relating to any investment of funds in any Trust Account shall be for the account of the Administrator, which shall deposit or cause to be deposited the amount of such loss (to
the extent not offset by income from other investments of funds in the related Trust Account) in the related Trust Account promptly upon the realization of such loss. The taxpayer identification number associated with each of the Trust Accounts
shall be that of the Issuer, and the Issuer shall report for federal, state and local income tax purposes their respective portions of the income, if any, earned on funds in the relevant Trust Account. The Administrator hereby acknowledges that all
amounts on deposit in each Trust Account (excluding investment earnings on deposit in the Trust Accounts) are held in trust by the Indenture Trustee for the benefit of the Secured Parties, subject to any express rights of the Issuer set forth
herein, and shall remain at all times during the term of this Base Indenture under the sole dominion and control of the Indenture Trustee. 

So long as the Indenture Trustee complies with the provisions of this Section 4.1, the Indenture Trustee shall not
be liable for the selection of investments or for investment losses incurred thereon by reason of investment performance, liquidation prior to stated maturity or otherwise in any Trust Account. The Indenture Trustee shall have no liability in
respect of losses incurred in any Trust Account as a result of the liquidation of any investment prior to its stated maturity or the failure to be provided with timely written investment direction. 

  
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 In order to comply with the laws, rules, regulations and executive orders in effect from
time to time applicable to banking institutions, including those relating to the funding of terrorist activities and money laundering, including Section 326 of the USA Patriot Act of the United States (“Applicable Law”),
the Indenture Trustee is required to obtain, verify, record and update certain information relating to individuals and entities which maintain a business relationship with the Indenture Trustee. Accordingly, each of the parties agrees to provide to
the Indenture Trustee upon its request from time to time such identifying information and documentation as may be available for such party in order to enable the Indenture Trustee to comply with Applicable Law. 

All parties to this Base Indenture agree, and each Noteholder of each Series by its acceptance of the related Note will be deemed to have
agreed, that such Noteholder shall have no claim or interest in the amounts on deposit in any Trust Account created under this Base Indenture or any related Indenture Supplement related to an unrelated Series except as expressly provided herein or
therein. 
 The Indenture Trustee or its Affiliates are permitted to receive additional compensation that could be deemed to be for the
Indenture Trustee’s economic self-interest for (a) serving as investment adviser, administrator, shareholder, servicing agent with respect to certain of the Permitted Investments, (b) using Affiliates to effect transactions in certain
Permitted Investments and (c) effecting transactions in certain Permitted Investments. Such compensation is not payable or reimbursable under this Base Indenture. 

The State of New York is the Securities Intermediary’s jurisdiction for purposes of the UCC, and the laws of the State of New York are
applicable to all issues specified in Article 2(1) of the Hague Securities Convention. This Base Indenture is the only “account agreement” in respect of the Trust Accounts. 

Section 4.2. Collections and Disbursements of Portfolio Collections by Servicer. 

(a) Daily Deposits of Portfolio Amounts. The Servicer shall remit all Portfolio Collections in accordance with the respective
Participation Certificates, Participation Agreements and the PC Repurchase Agreement. Any amounts that shall be remitted to the Issuer shall be remitted directly to the Collection and Funding Account. 

(b) Payment Dates. On each Payment Date, the Indenture Trustee shall transfer from the Collection and Funding Account to the Note
Payment Account all funds then on deposit therein. Except in the case of Redemption Amounts, which may be remitted by the Issuer directly to the Note Payment Account, none of the Servicer, the Administrator, the Issuer, the Calculation Agent nor the
Indenture Trustee shall remit to the Note Payment Account, and each shall take all reasonable actions to prevent other Persons from remitting to the Note Payment Account, amounts which do not constitute payments, collections or recoveries received,
made or realized in respect of the Participation Certificates or the other Collateral or the initial cash, if any, deposited by the Noteholders with the Indenture Trustee on the date hereof, and the Indenture Trustee will return to the Issuer or the
Servicer any such amounts upon receiving written evidence reasonably satisfactory to the Indenture Trustee that such amounts are not a part of the Trust Estate. 

  
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 Section 4.3. Fundings. 

(a) Funding Certifications. By no later than 1:00 p.m. New York City time on the Business Day prior to each Funding Date (or such other
time as may be agreed to from time to time by the Administrator, the Indenture Trustee and the Administrative Agent), the Administrator shall prepare and deliver to the Issuer, the Indenture Trustee, the Calculation Agent and the Administrative
Agent (and, on any Interim Payment Date, each applicable VFN Noteholder) a certification (each, a “Funding Certification”) containing a list of each Funding Condition and presenting a “yes” or “no” answer
beside each indicating whether such Funding Condition has been satisfied and shall state in writing the amount to be funded on that Funding Date. 

(b) VFN Draws, Discretionary Paydowns and Permanent Reductions. 

With respect to each VFN: 

(i) From time to time, the Collateral Value may increase due to (i) the addition of Mortgage Loans to the Retained MSR
Portfolio or the Sold MSR Portfolio, as applicable, or (ii) increases in the value of the MSRs that underlie the Retained MSR Portfolio and the Sold MSR Portfolio. By no later than 1:00 p.m. New York City time on the Business Day prior to any
Payment Date or Interim Payment Date during the Revolving Period for such VFN on which any applicable Class of Variable Funding Notes is Outstanding, the Administrator, on behalf of the Issuer, may deliver, or cause to be delivered, to each
Noteholder of such Variable Funding Notes and to the Indenture Trustee a Funding Certification and a report (a “VFN Note Balance Adjustment Request”) for such upcoming Funding Date, requesting such Noteholders to fund a VFN
Principal Balance increase on any Class or Classes of VFNs in the amount(s) specified in such request, which request shall instruct the Indenture Trustee to recognize an increase in the related VFN Principal Balance, but not in excess of the
lesser of (x) the related Maximum VFN Principal Balance or (y) the greatest amount that would not cause a Borrowing Base Deficiency. The VFN Note Balance Adjustment Request shall also state the amount, if any, of any principal payment to
be made on each Outstanding Class of VFNs on the upcoming Interim Payment Date or Payment Date. The amount to be funded shall be based on the change in Collateral Value from the most recent Interim Payment Date or Payment Date. 

(ii) If the related Funding Certification indicates that all Funding Conditions have been met, and the Administrative Agent
agrees, in its sole discretion, the applicable VFN Funding Sources shall fund the VFN Principal Balance increase by remitting pro rata (based on each such VFN Funding Source’s percentage of the Maximum VFN Principal Balance) the amount
stated in the request to the Indenture Trustee by 12:00 p.m. (noon) New York City time on the related Funding Date, whereupon the Indenture Trustee shall adjust its records to reflect the increase of the VFN Principal Balance (which increase shall
be the aggregate of the amounts received by the Indenture Trustee from the applicable VFN Funding Sources) by the later of (i) 2:00 p.m. New York City time on such Funding Date, or (ii) two hours after the receipt by the Indenture Trustee of
such funds from the VFN 

  
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Funding Sources, so long as, after such increase, no Borrowing Base Deficiency will exist, determined based on the VFN Note Balance Adjustment Request and Determination Date Report. The Indenture
Trustee shall be entitled to rely conclusively on any VFN Note Balance Adjustment Request and the related Determination Date Report and Funding Certification. The Indenture Trustee shall make available on a password-protected portion of its website
to the Issuer or its designee and each applicable VFN Funding Source and any related VFN Noteholder, notice on such Funding Date as reasonably requested by the Issuer of any increase in the VFN Principal Balance. The Indenture Trustee shall apply
and remit any such payment by the VFN Funding Sources toward the payment of the related Funding Amounts as described in Section 4.3(c). If on any Funding Date there is more than one Series with Outstanding Variable Funding
Notes, VFN Draws on such Funding Date shall be made on a pro rata basis among all applicable Outstanding Series of VFNs in their Revolving Periods based on their respective available Borrowing Capacities, unless otherwise provided in the
related Indenture Supplement and any applicable Note Purchase Agreement. If any VFN Funding Source does not fund its share of a requested VFN Draw, one or more other VFN Funding Sources may fund all or a portion of such draw, but no other VFN
Funding Source shall have any obligation to do so. Draws on VFNs of different Classes within the same Series need not be drawn pro rata relative to each other. 

(c) Payment of Funding Amounts. 

(i) Subject to its receipt of a duly executed Funding Certification from the Administrator pursuant to
Section 4.3(a) stating that all Funding Conditions have been satisfied, and approval by the Administrative Agent in its sole discretion, the Indenture Trustee shall remit to the Issuer (or the Issuer’s designee), by
the close of business New York City time on each Funding Date, the amount of the aggregate Funding Amount on such Funding Date without causing the related VFN Principal Balance to exceed either (I) the related Maximum VFN Principal Balance or
(II) the amount that would cause a Borrowing Base Deficiency. 
 (ii) Subject to its receipt of a duly executed Funding
Certification from the Administrator pursuant to Section 4.3(a) indicating that all Funding Conditions have been satisfied, the Indenture Trustee shall remit to the Issuer (or the Issuer’s designee) by the close of
business on each Interim Payment Date or Payment Date occurring at any time when not all Outstanding Notes are in Full Amortization Periods, the amount of the aggregate Funding Amount to be funded on such Interim Payment Date or Payment Date, using
any amounts funded by VFN Funding Sources in respect of such Funding Amount as described in Section 4.3(b). 
 (d)
To the extent the Issuance Date for any Series of Term Notes occurs on a Business Day other than a Payment Date or an Interim Payment Date, the Indenture Trustee shall pay the proceeds of any such issuance in accordance with the flows of funds
provided to the Indenture Trustee at the joint written direction of the Administrator and the Administrative Agent, with the consent of each VFN Noteholder, so long as the Administrator and the Administrative Agent confirm in such direction
(x) that the specified flow of funds is correct; (y) whether there will be an Additional Note Payment made or deemed to have been made in connection with the issuance 

  
 34 

 
of such Series, and after giving effect to such payment, if any, the amount of VFN Principal Balance; and (z) that after giving effect to the payment of amounts in accordance with the
specified flow of funds and the reduction of the VFN Principal Balance, if any, no Borrowing Base Deficiency will exist. No consent or instruction of any Holder of any Series of Term Notes shall be required in connection with payment amounts in
accordance such joint written direction for any Series of Term Notes. 
 Section 4.4. Interim Payment Dates. 

(a) On each Interim Payment Date, the Indenture Trustee shall allocate and pay or deposit (as specified below) all Available Funds held in the
Collection and Funding Account as set forth below, in the following order of priority and in the amounts set forth in the Interim Payment Date Report for such Interim Payment Date: 

(i) pro rata, to (A) to the extent required pursuant to the related Indenture Supplement, the Series Reserve Account for each
Series, the amount required to be deposited therein so that, after giving effect to such deposit, the amount on deposit in such Series Reserve Account shall be equal to the related Series Reserve Required Amount, and (B) to the Expense Reserve
Account, the amount required to be deposited therein so that, after giving effect to such deposit, the amount on deposit in the Expense Reserve Account shall be equal to the related Expense Reserve Required Amount; 

(ii) to be retained in the Collection and Funding Account, the Required Available Funds; 

(iii) at the direction of the Administrator, (A) to pay down the VFN Principal Balance of each Outstanding Class of VFNs pro
rata, based on their respective Note Balances, to remove any Borrowing Base Deficiency on an Interim Payment Date that is an Interim Borrowing Base Payment Date and/or such other amount as may be designated by the Administrator or (B) to
reserve cash in the Collection and Funding Account; and 
 (iv) any Net Excess Cash Amount or Eligible Securities to or at the written
direction of the holder of the Owner Trust Certificate, it being understood that no such Net Excess Cash Amounts may be paid under this clause (iv) if, after the payment of such cash amounts, such payment would result in a Borrowing Base
Deficiency; provided, that amounts due and owing to the Owner Trustee or the Indenture Trustee and not previously paid hereunder or under any other Transaction Document shall be paid prior to such payment. 

(b) To the extent provided in the related Indenture Supplement, during the Revolving Period, on each Interim Payment Date, with the prior
written consent of the Administrative Agent (such consent not to be unreasonably withheld), the owner of the Owner Trust Certificate may make Additional Note Payments to a Noteholder of a Series or Class of VFNs. Such Additional Note Payments
shall be applied to pay down the VFN Principal Balance of each Outstanding Class of VFNs pro rata, based on their respective Note Balances, such amount as may be designated by the Administrator. 

  
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 Section 4.5. Payment Dates. 

(a) On each Payment Date, the Indenture Trustee shall transfer all funds on deposit in the Collection and Funding Account for such Payment Date
to the Note Payment Account. On each Payment Date, the Paying Agent shall apply such Available Funds, VFN Series Available Funds or Term Note Series Available Funds, as applicable (and other amounts as specifically noted in clause (a)(1)(iv)
below), in the following order of priority and in the amounts set forth in the Payment Date Report for such Payment Date: 

(1) Prior to commencement of the Full Amortization Period, the Available Funds shall be allocated in the following order of
priority: 
 (i) to the Indenture Trustee (in all its capacities), the Indenture Trustee Fee, to the Owner Trustee and the
Owner Trustee Fee plus, (subject, in the case of expenses and indemnification amounts, to the applicable Expense Limit) all reasonable out-of-pocket expenses and
indemnification amounts owed to the Indenture Trustee (in all capacities) and the Owner Trustee (in all capacities) on such Payment Date; 

(ii) to each Person (other than the Indenture Trustee or the Owner Trustee) entitled to receive Fees on such date, the Fees
payable to any such Person with respect to the related Collection Period or Interest Accrual Period, plus (subject, in the case of expenses and indemnification amounts, to the applicable Expense Limit, and allocated pro rata based on the
amounts due to each such Person) all reasonable out-of-pocket expenses and indemnification amounts owed for Administrative Expenses of the Issuer, pursuant to the
Transaction Documents or owed or payable by the Indenture Trustee, in its capacity as such, to Fannie Mae or any other Person pursuant to the Transaction Documents with respect to expenses, indemnification amounts, and other amounts to the extent
such expenses, indemnification amounts and other amounts have been invoiced or noticed to the Administrator and the Indenture Trustee, and thereafter from other Available Funds, if necessary; 

(iii) to the Noteholders of each Series of Notes, pro rata based on their respective interest entitlement amounts, the
Interest Payment Amount (for all Series) and the Step-Up Fee (for all Series, if any) for the current Payment Date, for each such Series; provided that if the amount of Available Funds on deposit in the
Collection and Funding Account on such day is insufficient to pay all amounts in respect of any Series pursuant to this clause (iii), the Indenture Trustee shall withdraw from the Series Reserve Account for such Series an amount equal to the
lesser of the amount then on deposit in such Series Reserve Account and the amount of such shortfall for disbursement to the Noteholders of such Series in reduction of such shortfall, with all such amounts paid to a Series under this clause
(iii) allocated among the Classes of such Series as provided in the related Indenture Supplement; 

  
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 (iv) pro rata, to (A) the Series Reserve Account for each
Series, any amount required to be deposited therein so that, after giving effect to such deposit, the amount on deposit in such Series Reserve Account on such day equals the related Series Reserve Required Amount, if applicable, and (B) the
Expense Reserve Account, any amount required to be deposited therein so that, after giving effect to such deposit, the amount on deposit in the Expense Reserve Account on such day equals the Expense Reserve Required Amount; 

(v) the Early Amortization Event Payment Amount to be paid on such Payment Date on each Class of Outstanding Notes that is
in its Early Amortization Period, if applicable; 
 (vi) to the Noteholders of each Series of Term Notes, pro rata,
the Scheduled Principal Payment Amount; 
 (vii) to the extent necessary to avoid any Borrowing Base Deficiency, at the
direction of the Administrator, either (1) to pay down the respective VFN Principal Balances of each Outstanding Class of VFNs, until the earlier of the removal of any Borrowing Base Deficiency with respect to each Outstanding
Class of VFNs or reduction of all VFN Principal Balances to zero, paid pro rata among each VFN Class based on their respective Class Invested Amounts, or (2) to reserve cash in the Collection and Funding Account; 

(viii) pro rata, based on their respective invoiced or reimbursable amounts and without regard to the applicable Expense
Limit, (A) to the Indenture Trustee (in all its capacities) and the Owner Trustee (in all capacities) for any amounts payable to the Indenture Trustee and the Owner Trustee pursuant to this Base Indenture or the Trust Agreement, as applicable,
to the extent not paid under clause (i) above, (B) to the MSR Valuation Agent for any amounts payable to the MSR Valuation Agent pursuant to this Base Indenture to the extent not paid under clause (ii) above, (C) to the
Securities Intermediary for any indemnification amounts owed to the Securities Intermediary as described in Section 4.9; (D) all Administrative Expenses of the Issuer not paid under clause (ii) above; or
(E) any other amounts payable pursuant to this Base Indenture or any other Transaction Document and not paid under clause (ii) above; 

(ix) if and to the extent so directed in writing by the Administrator on behalf of the Issuer, to the Noteholders of each
Class of VFNs, an amount to be applied to pay down the respective VFN Principal Balances equal to the lesser of 
 (A)
the amount specified by the Administrator and (B) the amount necessary to reduce the VFN Principal Balances to zero, paid pro rata among each VFN Class based on their respective Note Balances; and 

(x) any Net Excess Cash Amount or Eligible Securities to or at the direction of the holder of the Owner Trust Certificate, to
the extent that following 

  
 37 

 
any such payment, there would not be a Borrowing Base Deficiency; provided that amounts due and owing to the Owner Trustee or the Indenture Trustee and not previously paid hereunder or
under any other Transaction Document shall be paid prior to such payment. 
 (2) On and after the commencement of the Full
Amortization Period, all Available Funds for each Series shall be allocated in the following order of priority: 
 (i) to the
Indenture Trustee (in all its capacities), the Indenture Trustee Fee, to the Owner Trustee, the Owner Trustee Fee, and to the Disposition Manager, the Disposition Manager Fee payable on such Payment Date, plus (without regard, in the case of
expenses and indemnification amounts, to the applicable Expense Limit) all reasonable out-of-pocket expenses and indemnification amounts owed to the Indenture Trustee
(in all capacities), the Owner Trustee (in all capacities) and the Disposition Manager on such Payment Date, with respect to expenses and indemnification amounts to the extent such expenses and indemnification amounts have been invoiced or noticed
to the Administrator; provided that if the amount of Available Funds is not sufficient to pay the full amounts owed to the Indenture Trustee pursuant to this clause (i), the Indenture Trustee shall withdraw from the Expense Reserve
Account an amount equal to the lesser of the amount then on deposit in the Expense Reserve Account and the amount of such shortfall for disbursement to the Indenture Trustee in reduction of such shortfall; 

(ii) to each Person (other than the Indenture Trustee, the Owner Trustee or the Disposition Manager) entitled to receive Fees
on such date, the Fees payable to any such Person with respect to the related Collection Period or Interest Accrual Period, as applicable, plus (subject, in the case of expenses and indemnification amounts, to the applicable Expense Limit and
allocated pro rata based on the amounts due to each such Person) all reasonable out-of-pocket expenses and indemnification amounts owed for Administrative
Expenses of the Issuer with respect to expenses, indemnification amounts and other amounts to the extent such expenses, indemnification amounts and other amounts have been invoiced or noticed to the Administrator and the Indenture Trustee; 

(iii) thereafter, the VFN Series Available Funds or the Term Note Series Available Funds, as applicable, for each Outstanding
Series shall be allocated in the following order of priority (or in such other order of priority as specified in the related Indenture Supplement): 

(A) to pay any costs, reasonable out-of-pocket
expenses and indemnification amounts owed with respect to any Hedging Instruments for such Series; 
 (B) to the Noteholders
of the related Series of Notes, (a) the related Cumulative Interest Shortfall Amounts attributable to unpaid 

  
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Interest Amounts (for all Series) from prior Payment Dates, and (b) the Interest Amounts (for all Series) for the current Payment Date, for each such Class; provided that if the
amount of related VFN Series Available Funds or Term Note Series Available Funds, as applicable, is insufficient for any Class pursuant to this clause (iii)(B), the Indenture Trustee shall withdraw from the Series Reserve Account for
such Class an amount equal to the lesser of the amount then on deposit in such Series Reserve Account and the amount of such shortfall for disbursement to the Noteholders of such Class in reduction of such shortfall, with all such amounts
paid to a Series under this clause (iii)(B) allocated among the Classes of such Series as provided in the related Indenture Supplement; 

(C) to the Noteholders of the related Series of Notes, remaining VFN Series Available Funds or Term Note Series Available
Funds, as applicable, up to the aggregate unpaid Note Balances to reduce Note Balances in the order specified in the related Indenture Supplement, until all such Note Balances have been reduced to zero; 

(D) to the Noteholders of the related Series of Notes, remaining Series Available Funds up to the Default Supplemental Fee and
the Step-Up Fee for the current Payment Date and related shortfalls, for each such Class in the order specified in the related Indenture Supplement; and 

(E) to other Series in accordance with the applicable priority of payments for such Series, to the extent the VFN Series
Available Funds or the Term Note Series Available Funds, as applicable, for such other Series were insufficient to make such payments, allocated among such other Series pro rata based on the amounts of their respective shortfalls; 

(iv) out of all remaining VFN Series Available Funds and Term Note Series Available Funds for all Series, pro rata,
based on their respective invoiced or reimbursable amounts and without regard to the applicable Expense Limit, (A) to the MSR Valuation Agent for any amounts payable to the MSR Valuation Agent pursuant to this Base Indenture to the extent not
paid under clause (ii) above, (B) to the Securities Intermediary for any indemnification amounts owed to the Securities Intermediary as described in Section 4.9, and (C) all Administrative Expenses of the
Issuer not paid under clause (ii) above; provided that if the amount of related VFN Series Available Funds or Term Note Series Available Funds, as applicable, is not sufficient to pay the full amounts owed to the MSR Valuation
Agent pursuant to subclause (A) of this clause (iv), the Indenture Trustee shall withdraw from the Expense Reserve Account an amount equal to the lesser of the amount then on deposit in the Expense Reserve Account and the amount
of such shortfall for disbursement to the MSR Valuation Agent in reduction of such shortfall; 
 (v) out of all remaining VFN
Series Available Funds and Term Note Series Available Funds for all Series, to pay any other amounts required to be paid before Net Excess Cash Amounts pursuant to one or more Indenture Supplements; and 

  
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 (vi) out of all remaining VFN Series Available Funds and Term Note Series
Available Funds for all Series, any Net Excess Cash Amount to or at the written direction of the holder of the Owner Trust Certificate. 

The amounts payable under clause (i) or (ii) of Section 4.5(a)(2) above shall be paid out of each
Series’ VFN Series Available Funds or Term Note Series Available Funds, as applicable, based on such Series’ Series Allocation Percentage of such amounts payable on such Payment Date. If, on any Payment Date, the VFN Series Available Funds
or Term Note Series Available Funds, as applicable, for any Series is less than the amount payable under clauses (i) and (ii) above out of such Series’ VFN Series Available Funds or Term Note Series Available Funds, as
applicable (any such difference, a “Shortfall Amount”), the amount of such Shortfall Amount shall be paid out of the VFN Series Available Funds or Term Note Series Available Funds, as applicable, for each Series that does not
have a Shortfall Amount, in each case, based on such Series’ relative Series Invested Amount. 
 (b) On each Payment Date, the
Indenture Trustee shall instruct the Paying Agent to pay to, or as directed by, each Noteholder of record on the related Record Date the amount to be paid to such Noteholder in respect of the related Note on such Payment Date by wire transfer if
appropriate instructions are provided to the Indenture Trustee in writing no later than five (5) Business Days prior to the related Record Date, or, if a wire transfer cannot be effected, by check delivered to each Noteholder of record on the
related Record Date at the address listed on the records of the Note Registrar. 
 (c) Notwithstanding anything to the contrary in this Base
Indenture, the Indenture Supplement providing for the issuance of any Series of Notes within which there are one or more Classes of Notes may specify the allocation of payments among such Classes payable pursuant to
Section 4.5 hereof, providing for the subordination of such payments on the subordinated Series or Class, and any such provision in such an Indenture Supplement shall have the same effect as if set forth in this Base Indenture
and any related Indenture Supplement, all to the extent an Issuer Tax Opinion is delivered as to such Series at its issuance. 
 (d) On each
Payment Date, the Indenture Trustee shall make available, in the same manner as described in Section 3.5, a report stating all amounts paid to the Indenture Trustee (in all its capacities) or Citibank (in all its
capacities) pursuant to this Section 4.5 on such Payment Date. 
 (e) To the extent provided in the related
Indenture Supplement, during the Revolving Period, on each Payment Date, and with the prior written consent of the Administrative Agent, the owner of the Owner Trust Certificate may make Additional Note Payments to a Noteholder of a Series or
Class of VFNs. Such Additional Note Payments shall be applied to pay down the VFN Principal Balance of each Outstanding Class of VFNs pro rata, based on their respective Note Balances, such amount as may be designated by the
Administrator. 

  
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 Section 4.6. Series Reserve Account; Expense Reserve Account. 

(a) Series Reserve Account. 

(xii) Pursuant to Section 4.1, the Indenture Trustee shall establish and maintain a Series Reserve
Account or Trust Accounts for each Series, each of which shall be an Eligible Account, for the benefit of the Secured Parties of such Series. If any such account loses its status as an Eligible Account, the funds in such account shall be moved to an
account that qualifies as an Eligible Account within thirty (30) days. On or prior to the Issuance Date for each Series, the Issuer shall cause an amount equal to the related Series Reserve Required Amount(s), if applicable, to be deposited
into the related Series Reserve Account(s). Thereafter, on each Payment Date and Interim Payment Date, the Indenture Trustee shall withdraw Available Funds from the Note Payment Account and deposit them into each such Series Reserve Account pursuant
to, and to the extent required by, Section 4.5(a) and the related Indenture Supplement. 
 (xiii)
On each Payment Date, an amount equal to the aggregate of amounts described in clauses (i), (ii) and (iii) of Section 4.5(a)(1) or clauses (i) and (ii) of
Section 4.5(a)(2) allocable to the related Series, as appropriate, and which is not payable out of Available Funds or the related VFN Series Available Funds or Term Note Series Available Funds, as applicable, due to an
insufficiency of Available Funds or VFN Series Available Funds or Term Note Series Available Funds, as applicable, shall be withdrawn from such Series Reserve Account by the Indenture Trustee and remitted to the Note Payment Account for payment in
respect of the related Class’ allocable share of such items as described in Section 4.5(a) or the related Indenture Supplement. On any Payment Date on which amounts are withdrawn from such Series Reserve Account
pursuant to Section 4.5(a), no funds shall be withdrawn from the Collection and Funding Account (or from the Note Payment Account for deposit into the Collection and Funding Account) to pay Funding Amounts or amounts to the
Issuer pursuant to Section 4.3 if, after giving effect to the withdrawals described in the preceding sentences, the amount then on deposit in such Series Reserve Account is less than the related Series Reserve Required
Amount, if applicable. All Collections received in the Collection and Funding Account shall be deposited into the related Series Reserve Accounts until the amount on deposit in each Series Reserve Account equals the related Series Reserve Required
Amount, if applicable, as described in Section 4.5 and the related Indenture Supplement. For purposes of the foregoing, the portion of any such fees and expenses payable under Section 4.5(a)(1)(i)
or (ii) shall equal the related Series Allocation Percentage of the amounts payable under such clause. 
 (xiv) If on any
Payment Date the amount on deposit in a Series Reserve Account is equal to or greater than the aggregate Note Balance for the related Series (after payment on such Payment Date of the amounts described in Section 4.5) the
Indenture Trustee will withdraw from such Series Reserve Account the aggregate Note Balance for such Series and remit it to the Noteholders of the Notes of such Series in reduction of the aggregate Note Balance for all Classes of Notes of such
Series that are Outstanding. On the Stated Maturity Date for the latest maturing Class in a Series, the balance on deposit in the related 

  
 41 

 
Series Reserve Account shall be applied as a principal payment on the Notes of that Series to the extent necessary to reduce the aggregate Note Balance for that Series to zero. On any Payment
Date after payment of principal on the Notes and when no Event of Default has occurred, the Indenture Trustee shall withdraw from each Series Reserve Account the amount by which the balance of the Series Reserve Account exceeds the related Series
Reserve Required Amount, if applicable, and pay such amount to the holder of the Owner Trust Certificate. 
 (xv) Amounts
held in a Series Reserve Account shall be invested in Permitted Investments to the extent the Administrator provides written direction to the Indenture Trustee, as provided in Section 4.1; provided, however,
if no such direction is provided, all amounts shall remain uninvested. 
 (xvi) On any Payment Date, after payment of all
amounts pursuant to Section 4.5(a), during the Full Amortization Period, the Indenture Trustee shall withdraw from each Series Reserve Account the amount by which the amount on deposit in such Series Reserve Account exceeds
the related Series Reserve Required Amount, if applicable, and shall apply such excess to reduce the Note Balances of the Notes of the related Series, pursuant to Section 4.5. Such principal payment shall be made in
accordance with the terms and provisions of the related Indenture Supplement. On any Payment Date following the payment in full of all principal payable in respect of the related Series or Class of Notes, the Indenture Trustee shall withdraw
any remaining amounts from the related Series Reserve Account and distribute it to the holder of the Owner Trust Certificate. Amounts paid pursuant to the preceding sentence shall be released from the Security Interest. 

(xvii) If on any Funding Date, the amount on deposit in one or more Series Reserve Accounts is less than the related Series
Reserve Required Amounts, if applicable, then the Administrator may direct the Indenture Trustee to transfer from the Collection and Funding Account to such Series Reserve Accounts an amount equal to the amount by which the respective Series Reserve
Required Amounts, if applicable, exceed the respective amounts then on deposit in the related Series Reserve Accounts. 

(xviii) Any funds on deposit in any Series Reserve Account are to be applied to make any required payments in respect of the
related Series or Class of Notes only, and no other Series or Class of Notes shall have any interest or claim against such amounts on deposit. Notwithstanding the foregoing, if any Series or Class of Notes is deemed to have an
interest or claim on the funds on deposit in the Series Reserve Account established for another Series, it shall not receive any amounts on deposit in such Series Reserve Account unless and until the Series or Class of Notes related to such
Series Reserve Account are paid in full and are no longer Outstanding. The provisions of this Section 4.6(a)(vii) constitute a “subordination agreement” for purposes of Section 510(a) of the Bankruptcy Code.

 (b) Expense Reserve Account. 

(i) Pursuant to Section 4.1, the Indenture Trustee shall establish and maintain an Expense Reserve
Account, which shall be an Eligible Account, for the benefit of the 

  
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Indenture Trustee and the MSR Valuation Agent. If any such account loses its status as an Eligible Account, the funds in such account shall be moved to an account that qualifies as an Eligible
Account within thirty (30) days. On or prior to the Closing Date, the Issuer shall cause an amount equal to the related Expense Reserve Required Amount to be deposited into the Expense Reserve Account. Thereafter, on each Payment Date and
Interim Payment Date, the Indenture Trustee shall withdraw Available Funds from the Note Payment Account and deposit them into the Expense Reserve Account pursuant to, and to the extent required by Section 4.5(a). 

(ii) On each Payment Date, an amount equal to the aggregate of amounts described in clause (i) of
Section 4.5(a)(2) which is not payable out of Series Available Funds due to an insufficiency of Series Available Funds shall be withdrawn from the Expense Reserve Account by the Indenture Trustee and remitted to the Note
Payment Account for payment in respect of the related Class’ allocable share of such items as described in Section 4.5(a). On any Payment Date on which amounts are withdrawn from the Expense Reserve Account pursuant to
Section 4.5(a), no funds shall be withdrawn from the Collection and Funding Account (or from the Note Payment Account for deposit into the Collection and Funding Account) to pay Funding Amounts or amounts to the Issuer
pursuant to Section 4.3 if, after giving effect to the withdrawals described in the preceding sentences, the amount then on deposit in the Expense Reserve Account is less than the Expense Reserve Required Amount. All
Collections received in the Collection and Funding Account shall be deposited into the Expense Reserve Account until the amount on deposit in the Expense Reserve Account equals the Expense Reserve Required Amount, as described in
Section 4.5. 
 (iii) Amounts held in the Expense Reserve Account shall be invested in Permitted
Investments at the direction of the Administrator as provided in Section 4.1. 
 (iv) On any
Payment Date, after payment of all amounts pursuant to Section 4.5(a), during the Full Amortization Period, the Indenture Trustee shall withdraw from the Expense Reserve Account the amount by which the amount on deposit in
the Expense Reserve Account exceeds the Expense Reserve Required Amount, if applicable, and shall apply such excess to reduce the Note Balances of the Notes of all Series, pursuant to Section 4.5. Such principal payment
shall be made in accordance with the terms and provisions of the related Indenture Supplement. On any Payment Date following the payment in full of all principal payable in respect of all Series or Classes of Notes and the payment in full of all
amounts payable to the Indenture Trustee and the MSR Valuation Agent, the Indenture Trustee shall withdraw any remaining amounts from the Expense Reserve Account and distribute it to the holder of the Owner Trust Certificate. Amounts paid pursuant
to the preceding sentence shall be released from the Security Interest. 
 (v) If on any Funding Date, the amount on deposit
in the Expense Reserve Accounts is less than the Expense Reserve Required Amount, if applicable, then the Administrator may direct the Indenture Trustee to transfer from the Collection and Funding Account to the Expense Reserve Account an amount
equal to the amount by which the Expense Reserve Required Amount exceeds the amounts then on deposit in the Expense Reserve Account. 

  
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 Section 4.7. Collection and Funding Account; Eligible Securities Account. 

Pursuant to Section 4.1, the Indenture Trustee shall establish and maintain the Collection and Funding Account and
the Eligible Securities Account, each of which shall be an Eligible Account, for the benefit of the Secured Parties. If any such account loses its status as an Eligible Account, the funds or securities, as applicable, in such account shall be moved
to an account that qualifies as an Eligible Account within thirty (30) days. The Indenture Trustee shall deposit and withdraw Available Funds from the Collection and Funding Account pursuant to, and to the extent required by
Section 4.5. 
 Amounts held in the Collection and Funding Account shall be invested in Permitted Investments at
the written direction of the Administrator as provided in Section 4.1; provided, however, if no such direction is provided, all amounts shall remain uninvested. 

Section 4.8. Note Payment Account. 

(a) Pursuant to Section 4.1, the Indenture Trustee shall establish and maintain the Note Payment Account, which shall
be an Eligible Account, for the benefit of the Secured Parties. If the Note Payment Account loses its status as an Eligible Account, the funds in such account shall be moved to an account that qualifies as an Eligible Account within thirty
(30) days. The Note Payment Account shall be funded to the extent that (i) the Issuer shall remit to the Indenture Trustee the Redemption Amount for a Class of Notes pursuant to Section 13.1, (ii) the
Indenture Trustee shall remit thereto any Available Funds from the Collection and Funding Account pursuant to Section 4.2(b), (iii) the Indenture Trustee shall transfer amounts from an applicable Series Reserve Account
pursuant to, and to the extent required by, Section 4.6, and (iv) the Indenture Trustee shall transfer amounts from the Expense Reserve Account pursuant to, and to the extent required by,
Section 4.6. 
 (b) On each Payment Date, an amount equal to the aggregate of amounts described in
Section 4.5(a) shall be withdrawn from the Note Payment Account by the Indenture Trustee and remitted to the Noteholders and other Persons or accounts described therein for payment as described in that Section, and upon
payments of all sums payable hereunder as described in Section 4.5(a), as applicable, any remaining amounts then on deposit in the Note Payment Account shall be released from the Security Interest and paid to PMC unless it
would cause a Borrowing Base Deficiency. 
 (c) Amounts held in the Note Payment Account may be invested in Permitted Investments at the
direction of the Administrator as provided in Section 4.1. 
 Section 4.9. Securities Accounts. 

(a) Securities Intermediary. The Issuer and the Indenture Trustee hereby appoint Citibank, as Securities Intermediary with respect to
the Trust Accounts. The Security Entitlements and all Financial Assets credited to the Trust Accounts, including all amounts, securities, investments, Financial Assets, investment property and other property from time to time deposited

  
 44 

 
in or credited to such account and all proceeds thereof, held from time to time in the Trust Accounts will continue to be held by the Securities Intermediary for the Indenture Trustee for the
benefit of the Secured Parties. Upon the termination of this Base Indenture, the Indenture Trustee shall inform the Securities Intermediary of such termination. By acceptance of their Notes or interests therein, the Noteholders and all beneficial
owners of Notes shall be deemed to have appointed Citibank, as Securities Intermediary. Citibank hereby accepts such appointment as Securities Intermediary. 

(i) With respect to any portion of the Trust Estate that is credited to the Trust Accounts, the Securities Intermediary agrees
that: 
 (A) with respect to any portion of the Trust Estate that is held in deposit accounts, each such deposit account
shall be subject to the security interest granted pursuant to this Base Indenture, and the Securities Intermediary shall comply with instructions originated by the Indenture Trustee directing dispositions of funds in the deposit accounts without
further consent of the Issuer and otherwise shall be subject to the exclusive custody and control of the Securities Intermediary, and the Securities Intermediary shall have sole signature authority with respect thereto; 

(B) any and all property credited to the Trust Accounts shall be treated by the Securities Intermediary as Financial Assets;

 (C) any portion of the Trust Estate that is, or is treated as, a Financial Asset shall be physically delivered
(accompanied by any required endorsements) to, or credited to an account in the name of, the Securities Intermediary or other eligible institution maintaining any Trust Account in accordance with the Securities Intermediary’s customary
procedures such that the Securities Intermediary or such other institution establishes a Security Entitlement in favor of the Indenture Trustee with respect thereto over which the Securities Intermediary or such other institution has
“control” (as defined in the UCC); and 
 (D) it will use reasonable efforts to promptly notify the Indenture
Trustee and the Issuer if any other Person claims that it has a property interest in a Financial Asset in any Trust Account and that it is a violation of that Person’s rights for anyone else to hold, transfer or deal with such Financial Asset.

 (ii) The Securities Intermediary hereby confirms that (A) each Trust Account is an account to which Financial Assets
are or may be credited, and the Securities Intermediary shall, subject to the terms of this Base Indenture treat the Indenture Trustee as entitled to exercise the rights that comprise any Financial Asset credited to any Trust Account, (B) any
portion of the Trust Estate in respect of any Trust Account will be promptly credited by the Securities Intermediary to such account, and (C) all securities or other property underlying any Financial Assets credited to any Trust Account shall
be 

  
 45 

 
registered in the name of the Securities Intermediary, endorsed to the Securities Intermediary or in blank or credited to another securities account maintained in the name of the Securities
Intermediary, and in no case will any Financial Asset credited to any Trust Account be registered in the name of the Issuer or the Administrator, payable to the order of the Issuer or the Administrator or specially endorsed to any of such Persons.

 (iii) If at any time the Securities Intermediary shall receive an Entitlement Order from the Indenture Trustee directing
transfer or redemption of any Financial Asset relating to any Trust Account, the Securities Intermediary shall comply with such Entitlement Order without further consent by the Issuer or the Administrator or any other Person. If at any time the
Indenture Trustee notifies the Securities Intermediary in writing that this Base Indenture has been discharged in accordance herewith, then thereafter if the Securities Intermediary shall receive any order from the Issuer directing transfer or
redemption of any Financial Asset relating to any Trust Account, the Securities Intermediary shall comply with such Entitlement Order without further consent by the Indenture Trustee or any other Person. 

(iv) In the event that the Securities Intermediary has or subsequently obtains by agreement, operation of law or otherwise a
security interest in any Trust Account or any Financial Asset or Security Entitlement credited thereto, the Securities Intermediary hereby agrees that such security interest shall be subordinate to the security interest of the Indenture Trustee. The
Financial Assets and Security Entitlements credited to the Trust Accounts will not be subject to deduction, set-off, banker’s lien, or any other right in favor of any Person other than (i) the
Indenture Trustee in the case of the Trust Accounts and (ii) the Owner Trustee Lien. 
 (v) There are no other
agreements entered into between the Securities Intermediary in such capacity, and the Securities Intermediary agrees that it will not enter into any agreement with, the Issuer, the Administrator, or any other Person (other than the Indenture
Trustee) with respect to any Trust Account. In the event of any conflict between this Base Indenture (or any provision of this Base Indenture) and any other agreement now existing or hereafter entered into, the terms of this Base Indenture shall
prevail. 
 (vi) The rights and powers granted herein to the Indenture Trustee have been granted in order to perfect its
interest in the Trust Accounts and the Security Entitlements to the Financial Assets credited thereto, and are powers coupled with an interest and will not be affected by the bankruptcy of the Issuer, the Administrator or PMC nor by the lapse of
time. The obligations of the Securities Intermediary hereunder shall continue in effect until the interest of the Indenture Trustee in the Trust Accounts and in such Security Entitlements, has been terminated pursuant to the terms of this Base
Indenture and the Indenture Trustee has notified the Securities Intermediary of such termination in writing. 
 (b) Definitions; Choice
of Law. Capitalized terms used in this Section 4.9 and not defined herein shall have the meanings assigned to such terms in the New York UCC. For purposes of Section 8-110(e)
of the New York UCC, the “securities intermediary’s jurisdiction” shall be the State of New York. The Securities Intermediary, the Administrator and the Issuer agree that they 

  
 46 

 
will not change the applicable law in force with respect to issues referred to in Article 2(1) of the Hague Securities Convention to a state other than the State of New York. 

(c) Limitation on Liability. None of the Securities Intermediary or any director, officer, employee or agent of the Securities
Intermediary shall be under any liability to the Indenture Trustee or the Noteholders for any action taken, or not taken, in good faith pursuant to this Base Indenture, or for errors in judgment; provided, however, that this provision
shall not protect the Securities Intermediary against any liability to the Indenture Trustee or the Noteholders which would otherwise be imposed by reason of the Securities Intermediary’s willful misconduct, bad faith or negligence in the
performance of its obligations or duties hereunder. The Securities Intermediary and any director, officer, employee or agent of the Securities Intermediary may rely in good faith on any document of any kind which, on its face, is properly executed
and submitted by any Person respecting any matters arising hereunder. The Securities Intermediary shall be under no duty to inquire into or investigate the validity, accuracy or content of such document. 

(d) Representations, Warranties and Covenants of the Securities Intermediary. The Securities Intermediary represents and warrants that,
as of the date hereof, the Securities Intermediary has a physical office in the United States and is engaged in a business or other regular activity of maintaining securities accounts. The Securities Intermediary agrees that, at all times while this
Indenture is in effect, it shall maintain a physical office in the United States that satisfies the criteria set forth in Article 4(1)(a) or (b) of the Hague Securities Convention. 

Section 4.10. Notice of Adverse Claims. 

Except for the claims and interests of the Secured Parties in the Trust Accounts, the Securities Intermediary has no actual knowledge of any
claim to, or interest in, any Trust Account or in any financial asset credited thereto. If any Person asserts any Adverse Claim (including any writ, garnishment, judgment, warrant of attachment, execution or similar process) against any Trust
Account or in any financial asset carried therein of which a Responsible Officer of the Securities Intermediary has actual knowledge, the Securities Intermediary will promptly notify the Noteholders, the Indenture Trustee and the Issuer thereof.

 Section 4.11. No Gross Up. 

No Person, including the Issuer, shall be obligated to pay any additional amounts to the Noteholders or Note Owners as a result of any
withholding or deduction for, or on account of, any present or future taxes, duties, assessments or governmental charges. 
 Section 4.12.
Advance Rate Trigger Event Trigger Period, Early Amortization Period and Full Amortization Period. 
 Upon the occurrence of an
Advance Rate Trigger Event, the Advance Rate Trigger Event shall continue, unless, the Majority Noteholders for each Series of Variable Funding Notes that are Outstanding, plus the Administrative Agent, notify the Indenture Trustee and the
Disposition Manager that either (i) they have waived the occurrence of such Advance Rate Trigger Event or (ii) they have acknowledged that the Advance Rate Trigger Event has been cured for each Outstanding Series of Variable Funding Notes that
is still in its Revolving Period. 

  
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 Upon the occurrence of an Early Amortization Event, the Revolving Period for all Classes and
Series of the Notes shall automatically terminate and the Early Amortization Period for all Outstanding Notes shall commence without further action on the part of any Person, unless, together, the Majority Noteholders of all Outstanding Notes that
are not Variable Funding Notes and the Majority Noteholders for each Series of Variable Funding Notes that are Outstanding, plus the Administrative Agent, notify the Indenture Trustee and the Disposition Manager that either (i) they have waived
the occurrence of such Early Amortization Event and consent to the continuation of the Revolving Period for each Outstanding Series that is still in its Revolving Period or (ii) they acknowledge that the Early Amortization Event has been cured
and consent to the continuation of the Revolving Period for each Outstanding Series that is still in its Revolving Period. 
 Upon the
occurrence of an Event of Default, the Revolving Period for all Classes and Series of the Notes shall automatically terminate and the Full Amortization Period for all Outstanding Notes shall commence without further action on the part of any Person,
unless, together, the Majority Noteholders of all Outstanding Notes that are not Variable Funding Notes and the Majority Noteholders for each Series of Variable Funding Notes that are Outstanding, plus the Administrative Agent, notify the Indenture
Trustee and the Disposition Manager that either (i) they have waived the occurrence of such Event of Default and consent to the continuation of the Revolving Period for each Outstanding Series that is still in its Revolving Period or
(ii) they acknowledge that the Event of Default has been cured and consent to the continuation of the Revolving Period for each Outstanding Series that is still in its Revolving Period; provided, upon waiver or cure of an Event of
Default and continuation of a Revolving Period, any hourly fees incurred by the Disposition Manager during any Default Period shall be paid on the immediately following Payment Date pursuant to Section 4.5(a)(1)(ii). 

The obligation of the Issuer to pay or reserve any Default Supplemental Fee, Step-Up Fee, Cumulative
Interest Shortfall Amount, Cumulative Default Supplemental Fee Shortfall Amount or Cumulative Step-Up Fee Shortfall Amount shall begin only upon the occurrence of an Early Amortization Event or Event of
Default, as applicable, and commencement of the Early Amortization Period or Full Amortization Period, as applicable, as described in this Section 4.12. 

Article V 
 Note Forms

 Section 5.1. Forms Generally. 

The Notes will have such appropriate insertions, omissions, substitutions and other variations as are required or permitted by this Base
Indenture or the applicable Indenture Supplement and may have such letters, numbers or other marks of identification and such legends or endorsements placed thereon, as may be required to comply with applicable laws or regulations or with the rules
of any securities exchange, or as may, consistently herewith, be determined by the Issuer, as evidenced by the Issuer’s execution of such Notes. Any portion of the text of any Note may be set forth on the reverse thereof, with an appropriate
reference thereto on the face of the Note. 

  
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 The Definitive Notes and the Global Notes representing the Book-Entry Notes will be
typewritten, printed, lithographed or engraved or produced by any combination of these methods (with or without steel engraved borders) or may be produced in any other manner, all as determined by the Issuer, as evidenced by the Issuer’s
execution of such Notes. 
 Section 5.2. Forms of Notes. 

(a) Forms Generally. Subject to Section 5.2(b), each Note will be in one of the forms approved from time to
time by or pursuant to this Base Indenture. Without limiting the generality of the foregoing, the Indenture Supplement for any Series of Notes shall specify whether the Notes of such Series, or of any Class within such Series, shall be issuable
as Definitive Notes or as Book- Entry Notes. 
 (b) Issuer Certificate. Before the delivery of a Note to the Indenture Trustee for
authentication in any form approved by or pursuant to an Issuer Certificate, the Issuer will deliver to the Indenture Trustee the Issuer Certificate by or pursuant to which such form of Note has been approved, which Issuer Certificate will have
attached thereto a true and correct copy of the form of Note which has been approved thereby. Any form of Note approved by or pursuant to an Issuer Certificate must be acceptable as to form to the Indenture Trustee, such acceptance to be evidenced
by the Indenture Trustee’s authentication of Notes in that form of a Certificate of Authentication signed by an Indenture Trustee Authorized Officer and delivered to the Issuer. 

(c) (i) Rule 144A Notes. Notes sold by the Issuer (other than Regulation S Notes) shall bear a legend generally to the effect that
resales of such Notes or interests therein may be made only to qualified institutional buyers in transactions exempt from the registration requirements of the 1933 Act in reliance on Rule 144A (“each, a “Rule 144A Note”)
and shall be issued initially in the form of (A) one or more permanent Global Notes in fully registered form (each, a “Rule 144A Global Note”), substantially in the form attached hereto as Exhibit A-1 or (B) one or more permanent Definitive Notes in fully registered form (each, a “Rule 144A Definitive Note”), substantially in the form attached hereto as Exhibit A-2. The aggregate principal amounts of the Rule 144A Global Notes or Rule 144A Definitive Notes may from time to time be increased or decreased by adjustments made on the records of the Indenture Trustee, or
the Depository or its nominee, as the case may be, as hereinafter provided. 
 (ii) Regulation S Notes. Notes sold in
offshore transactions in reliance on Regulation S (each, a “Regulation S Note”) shall be issued in the form of (A) one or more permanent Global Notes in fully registered form (each, a “Regulation S Global
Note”), substantially in the form attached hereto as Exhibit A-3 or (B) one or more permanent Definitive Notes in fully registered form (each, a “Regulation S Definitive
Note”), substantially in the form attached hereto as Exhibit A-4. The aggregate principal amounts of the Regulation S Global Notes or the Regulation S Definitive Notes may from time to time
be increased or decreased by adjustments made on the records of the Indenture Trustee or the Depository or its nominee, as the case may be, as hereinafter provided. 

Section 5.3. Reserved. 

  
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 Section 5.4. Book-Entry Notes. 

(a) Issuance of Book-Entry Notes. If the Issuer establishes pursuant to Sections 5.2 and 6.1 that the Notes of a
particular Series or Class are to be issued as Book-Entry Notes, then the Issuer will execute and the Indenture Trustee or its agent will, in accordance with Section 6.3 and with the Issuer Certificate delivered to the
Indenture Trustee or its agent under Section 6.3, authenticate and deliver, one or more definitive Global Notes, which, unless otherwise provided in the applicable Indenture Supplement (1) will represent, and will be
denominated in an amount equal to the aggregate, Initial Note Balance of the Outstanding Notes of such Series or Class to be represented by such Global Note or Notes, or such portion thereof as the Issuer will specify in an Issuer Certificate,
(2) will be registered in the name of the Depository for such Global Note or Notes or its nominee, (3) will be delivered by the Indenture Trustee or its agent to the Depository or pursuant to the Depository’s instruction (and which
may be held by the Indenture Trustee as custodian for the Depository, if so specified in the related Indenture Supplement or Depository Agreement), (4) if applicable, will bear a legend substantially to the following effect: “Unless this Note
is presented by an authorized representative of The Depository Trust Company, a New York corporation (“DTC”), to the Issuer or its agent for registration of transfer, exchange or payment, and any Note issued is registered in
the name of Cede & Co. or in such other name as is requested by an authorized representative of DTC (and any payment is made to Cede & Co. or to such other entity as is requested by an authorized representative of DTC), any
transfer, pledge or other use hereof for value or otherwise by or to any person is wrongful inasmuch as the registered owner hereof, Cede & Co., has an interest herein” and (5) may bear such other legend as the Issuer, upon advice
of counsel, deems to be applicable. 
 (b) The Note Registrar and the Indenture Trustee may deal with the Depository as the sole Noteholder
of the Book-Entry Notes for all purposes of this Indenture and will not be obligated to the Note Owners, except as stated in Section 14.11. 

(c) The rights of the Note owners may be exercised only through the Depository and will be limited to those established by law and agreements
between the Note Owners and the Depository and/or its participants under the Depository Agreement. 
 (d) If this Section 5.4(a)
conflicts with other terms of this Indenture, this Section 5.4(a) will control. 
 (e) The Depository will make book-entry transfers
among its participants and receive and transmit payments of principal of and interest on the Book-Entry Notes to the participants. 
 (f)
The Indenture Trustee, the Note Registrar, and the Paying Agent shall have no responsibility or liability for any actions taken or not taken by the Depository. 

(g) If this Indenture requires or permits actions to be taken based on instructions or directions of the Noteholders of a stated percentage of
Note Balance of the Notes, the Depository will be deemed to represent those Noteholders only if it has received instructions to that effect form Note Owners and/or the Depository’s participants owning or representing, the required percentage of
the beneficial interest of the Notes and has delivered the instructions to the Indenture Trustee. 

  
 50 

 (h) The Issuer in issuing Notes may use “CUSIP” numbers (if then generally in
use), and, if so, the Indenture Trustee shall use “CUSIP” numbers in notices of redemption as a convenience to Noteholders; provided that any such notice may state that no representation is made as to the correctness of such numbers either
as printed on the Notes or as contained in any notice of a redemption and that reliance may be placed only on the other identification numbers printed on the Notes, and any such redemption shall not be affected by any defect in or omission of such
numbers. The Issuer will promptly notify the Indenture Trustee in writing of any change in the “CUSIP” numbers. 
 (i)
Transfers of Global Notes only to Depository Nominees. Notwithstanding any other provisions of this Section 5.4 or of Section 6.5, and subject to the provisions of paragraph 

(c) below, unless the terms of a Global Note or the applicable Indenture Supplement expressly permit such Global Note to be exchanged in whole
or in part for individual Notes, a Global Note may be transferred, in whole but not in part and in the manner provided in Section 6.5, only to a nominee of the Depository for such Global Note, or to the Depository, or a
successor Depository for such Global Note selected or approved by the Issuer, or to a nominee of such successor Depository. 
 (j)
Limited Right to Receive Definitive Notes. Except under the limited circumstances described below, Note Owners of beneficial interests in Global Notes will not be entitled to receive Definitive Notes. With respect to Notes issued within the
United States, unless otherwise specified in the applicable Indenture Supplement, or with respect to Notes issued outside the United States, if specified in the applicable Indenture Supplement: 

(i) If at any time the Depository for a Global Note notifies the Issuer that it is unwilling or unable to continue to act as
Depository for such Global Note or if at any time the Depository for the Notes for such Series or Class ceases to be a Clearing Corporation, the Issuer will appoint a successor Depository with respect to such Global Note. If a successor
Depository for such Global Note is not appointed by the Issuer within ninety (90) days after the Issuer receives such notice or becomes aware of such ineligibility, the Issuer will execute, and the Indenture Trustee or its agent will, in
accordance with Section 6.3 and with the Issuer Certificate delivered to the Indenture Trustee or its agent under Section 6.3 requesting the authentication and delivery of individual Notes of such
Series or Class in exchange for such Global Note, will authenticate and deliver, individual Notes of such Series or Class of like tenor and terms in an aggregate Initial Note Balance equal to the Initial Note Balance of the Global Note in
exchange for such Global Note. 
 (ii) The Issuer may at any time and in its sole discretion determine that the Notes of any
Series or Class or portion thereof issued or issuable in the form of one or more Global Notes will no longer be represented by such Global Note or Notes. In such event the Issuer will execute, and the Indenture Trustee or its agent in
accordance with Section 6.3 and with the Issuer Certificate delivered to the Indenture Trustee or its agent under Section 6.3 for the authentication and delivery of individual Notes of such Series
or Class in exchange in whole or in part for such Global Note, will authenticate and deliver 

  
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individual Notes of such Series or Class of like tenor and terms in definitive form in an aggregate Initial Note Balance equal to the Initial Note Balance of such Global Note or Notes
representing such Series or Class or portion thereof in exchange for such Global Note or Notes. 
 (iii) If specified by
the Issuer pursuant to Sections 5.2 and 6.1 with respect to Notes issued or issuable in the form of a Global Note, the Depository for such Global Note may surrender such Global Note in exchange in whole or in part for individual Notes
of such Series or Class of like tenor and terms in definitive form on such terms as are acceptable to the Issuer and such Depository. Thereupon the Issuer will execute, and the Indenture Trustee or its agent will, in accordance with
Section 6.3 and with the Issuer Certificate delivered to the Indenture Trustee or its agent under Section 6.3, authenticate and deliver, without service charge, (A) to each Person specified by
such Depository a new Note or Notes of the same Series or Class of like tenor and terms and of any authorized denomination as requested by such Person in an aggregate Initial Note Balance equal to the Initial Note Balance of the portion of the
Global Note or Notes specified by the Depository and in exchange for such Person’s beneficial interest in the Global Note; and (B) to such Depository a new Global Note of like tenor and terms and in an authorized denomination equal to the
difference, if any, between the Initial Note Balance of the surrendered Global Note and the aggregate Initial Note Balance of Notes delivered to the Noteholders thereof. 

(iv) If any Event of Default has occurred with respect to such Global Notes, and Owners of Notes evidencing more than 50% of
the Global Notes of that Series or Class (measured by Voting Interests) advise the Indenture Trustee and the Depository that a Global Note is no longer in the best interest of the Note Owners, the Owners of Global Notes of that Series or
Class may exchange their beneficial interests in such Notes for Definitive Notes in accordance with the exchange provisions herein. 

(v) In any exchange provided for in any of the preceding four paragraphs, the Issuer will execute and the Indenture Trustee or
its agent will, in accordance with Section 6.3 and with the Issuer Certificate delivered to the Indenture Trustee or its agent under Section 6.3, authenticate and deliver Definitive Notes in
definitive registered form in authorized denominations. Upon the exchange of the entire Initial Note Balance of a Global Note for Definitive Notes, such Global Note will be canceled by the Indenture Trustee or its agent. Except as provided in the
preceding paragraphs, Notes issued in exchange for a Global Note pursuant to this Section will be registered in such names and in such authorized denominations as the Depository for such Global Note, pursuant to instructions from its direct or
indirect participants or otherwise, will instruct the Indenture Trustee or the Note Registrar. The Indenture Trustee or the Note Registrar will deliver such Notes to the Persons in whose names such Notes are so registered. 

Section 5.5. Beneficial Ownership of Global Notes. 

Until Definitive Notes have been issued to the applicable Noteholders to replace any Global Notes with respect to a Series or
Class pursuant to Section 5.4 or as otherwise specified in any applicable Indenture Supplement: 

  
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 (a) the Issuer and the Indenture Trustee may deal with the applicable clearing agency or
Depository and the Depository Participants for all purposes (including the making of payments) as the authorized representatives of the respective Note Owners; and 

(b) the rights of the respective Note Owners will be exercised only through the applicable Depository and the Depository Participants and will
be limited to those established by law and agreements between such Note Owners and the Depository and/or the Depository Participants. Pursuant to the operating rules of the applicable Depository, unless and until Definitive Notes are issued pursuant
to Section 5.4, the Depository will make book-entry transfers among the Depository Participants and receive and transmit payments of principal and interest on the related Notes to such Depository Participants. 

For purposes of any provision of this Base Indenture requiring or permitting actions with the consent of, or at the direction of, Noteholders
evidencing a specified percentage of the Note Balance of Outstanding Notes, such direction or consent may be given by Note Owners (acting through the Depository and the Depository Participants) owning interests in or security entitlements to Notes
evidencing the requisite percentage of principal amount of Notes. 
 Section 5.6. Notices to Depository. 

Whenever any notice or other communication is required to be given to Noteholders with respect to which Book-Entry Notes have been issued,
unless and until Definitive Notes will have been issued to the related Note Owners, the Indenture Trustee will give all such notices and communications to the applicable Depository, and shall have no obligation to report directly to such Note
Owners. 
 Article VI 

The Notes 
 Section 6.1.
General Provisions; Notes Issuable in Series; Terms of a Series or Class Specified in an Indenture Supplement. 
 (a) Amount
Unlimited. The aggregate Initial Note Balance of Notes which may be authenticated and delivered and Outstanding under this Base Indenture is not limited. 

(b) Series and Classes. The Notes may be issued in one or more Series or Classes up to an aggregate Note Balance for such Series or
Class as from time to time may be authorized by the Issuer. All Notes of each Series or Class under this Base Indenture will in all respects be equally and ratably entitled to the benefits hereof with respect to such Series or
Class without preference, priority or distinction on account of (1) the actual time of the authentication and delivery, or (2) Stated Maturity Date of the Notes of such Series or Class, except as specified in the applicable Indenture
Supplement for such Series or Class of Notes. 

  
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 Each Note issued must be part of a Series of Notes for purposes of allocations pursuant to
the related Indenture Supplement. A Series of Notes is created pursuant to an Indenture Supplement. A Class of Notes is created pursuant to an Indenture Supplement for the applicable Series. 

Each Series and Class of Notes will be secured by the Trust Estate. 

Each Series of Notes may, but need not be, subdivided into multiple Classes. Notes belonging to a Class in any Series may be entitled to
specified payment priorities over other Classes of Notes in that Series. 
 (c) Provisions Required in Indenture Supplement. Before
the initial issuance of Notes of each Series, there shall also be established in or pursuant to an Indenture Supplement provision for: 

(i) the Series designation; 

(ii) the Initial Note Balance of such Series of Notes and of each Class, if any, within such Series, and the Maximum VFN
Principal Balance for such Series (if it is a Series or Class of Variable Funding Notes); 
 (iii) whether such Notes
are subdivided into Classes; 
 (iv) whether such Series of Notes are Term Notes, Variable Funding Notes or a combination
thereof; 
 (v) the Note Interest Rate at which such Series of Notes or each related Class of Notes will bear interest,
if any, or the formula or index on which such rate will be determined, including all relevant definitions, and the date from which interest will accrue; 

(vi) the Stated Maturity Date for such Series of Notes or each related Class of Notes; 

(vii) if applicable, the appointment by the Indenture Trustee of an Authenticating Agent in one or more places other than the
location of the office of the Indenture Trustee with power to act on behalf of the Indenture Trustee and subject to its direction in the authentication and delivery of such Notes in connection with such transactions as will be specified in the
provisions of this Base Indenture or in or pursuant to the applicable Indenture Supplement creating such Series; 
 (viii) if
such Series of Notes or any related Class will be issued in whole or in part in the form of a Global Note or Global Notes, the terms and conditions, if any, in addition to those set forth in Section 5.4, upon which
such Global Note or Global Notes may be exchanged in whole or in part for other Definitive Notes; and the Depository for such Global Note or Global Notes (if other than the Depository specified in Section 1.1); 

(ix) the subordination, if any, of such Series of Notes or any related Class(es) to any other Notes of any other Series or of
any other Class within the same Series; 

  
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 (x) the Record Date for any Payment Date of such Series of Notes or any
related Class, if different from the last day of the month before the related Payment Date; 
 (xi) any Default Supplemental
Fee Rate, if applicable; 
 (xii) any Step-Up Fee Rate, if applicable; 

(xiii) if applicable, under what conditions any additional amounts will be payable to Noteholders of the Notes of such Series;

 (xiv) the Administrative Agent for such Series of Notes; 

(xv) any other terms of such Notes as stated in the related Indenture Supplement; and 

(xvi) all upon such terms as may be determined in or pursuant to an Indenture Supplement with respect to such Series or
Class of Notes. 
 (d) Forms of Series or Classes of Notes. The form of the Notes of each Series or Class will be
established pursuant to the provisions of this Base Indenture and the related Indenture Supplement creating such Series or Class. The Notes of each Series or Class will be distinguished from the Notes of each other Series or Class in such
manner, reasonably satisfactory to the Indenture Trustee, as the Issuer may determine. 
 Section 6.2. Denominations. 

Except as provided in Section 6.1(b), the Notes of each Series or Class will be issuable in such denominations
and currency as will be provided in the provisions of this Base Indenture or in or pursuant to the applicable Indenture Supplement. In the absence of any such provisions with respect to the Term Notes of any Series or Class, the Term Notes of that
Series or Class will be issued in minimum denominations of $100,000 and integral multiples of $1,000 in excess thereof. In the absence of any such provisions with respect to the Variable Funding Notes of any Series or Class, the Variable
Funding Notes of that Series or Class will be issued in accordance with the terms of the related Indenture Supplement. 
 Section 6.3.
Execution, Authentication and Delivery and Dating. 
 (a) The Notes will be executed on behalf of the Issuer by an Issuer
Authorized Officer, by manual or facsimile signature. 
 (b) Notes bearing the manual or facsimile signatures of individuals who were at any
time an Issuer Authorized Officer will bind the Issuer, notwithstanding that such individuals or any of them have ceased to hold such offices before the authentication and delivery of such Notes or did not hold such offices at the date of issuance
of such Notes. 

  
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 (c) At any time and from time to time after the execution and delivery of this Base
Indenture, the Issuer may deliver Notes executed by the Issuer to the Indenture Trustee for authentication; and the Indenture Trustee will, upon delivery of an Issuer Certificate, authenticate and deliver such Notes as provided in this Base
Indenture and not otherwise. 
 (d) Before any such authentication and delivery, the Indenture Trustee will be entitled to receive, in
addition to any Officer’s Certificate and Opinion of Counsel required to be furnished to the Indenture Trustee pursuant to Section 1.3, the Issuer Certificate and any other opinion or certificate relating to the
issuance of the Series or Class of Notes required to be furnished pursuant to Section 5.2 or Section 6.10. 

(e) The Indenture Trustee will not be required to authenticate such Notes if the issue thereof will adversely affect the Indenture
Trustee’s own rights, duties or immunities under the Notes and this Base Indenture. 
 (f) Unless otherwise provided in the form of
Note for any Series or Class, all Notes will be dated the date of their authentication. 
 (g) No Note will be entitled to any benefit under
this Base Indenture or be valid or obligatory for any purpose unless there appears on such Note a Certificate of Authentication substantially in the form provided for herein executed by the Indenture Trustee by manual signature of an authorized
signatory, and such certificate upon any Note will be conclusive evidence, and the only evidence, that such Note has been duly authenticated and delivered hereunder. 

Section 6.4. Temporary Notes. 

(a) Pending the preparation of definitive Notes of any Series or Class, the Issuer may execute, and, upon receipt of the documents required by
Section 6.3, together with an Issuer’s Certificate, the Indenture Trustee will authenticate and deliver, temporary Notes which are printed, lithographed, typewritten, mimeographed or otherwise produced, in any
authorized denomination, substantially of the tenor of the definitive Notes in lieu of which they are issued and with such appropriate insertions, omissions, substitutions and other variations as the Issuer may determine, as evidenced by the
Issuer’s execution of such Notes. 
 (b) If temporary Notes of any Series or Class are issued, the Issuer will cause permanent
Notes of such Series or Class to be prepared without unreasonable delay. After the preparation of permanent Notes, the temporary Notes of such Series or Class will be exchangeable for permanent Notes of such Series or Class upon
surrender of the temporary Notes of such Series or Class at the office or agency of the Issuer in a Place of Payment, without charge to the Noteholder; and upon surrender for cancellation of any one or more temporary Notes the Issuer will
execute and the Indenture Trustee or its agent will, in accordance with Section 6.3 and with the Issuer Certificate delivered to the Indenture Trustee or its agent under Section 6.3, authenticate
and deliver in exchange therefore a like Initial Note Balance of permanent Notes of such Series or Class of authorized denominations and of like tenor and terms. Until so exchanged the temporary Notes of such Series or Class will in all
respects be entitled to the same benefits under this Base Indenture as permanent Notes of such Series or Class. 

  
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 Section 6.5. Registration, Transfer and Exchange. 

(a) Note Register. The Indenture Trustee, acting as Note Registrar, shall keep or cause to be kept a register (herein sometimes referred
to as the “Note Register”) in which, subject to such reasonable regulations as it may prescribe, the Issuer will provide for the registration of Notes, or of Notes of a particular Series or Class, and for transfers of Notes.
Any such register will be in written form or in any other form capable of being converted into written form within a reasonable time. At all reasonable times the information contained in such register or registers will be available for inspection by
the Issuer or the Indenture Trustee at the Corporate Trust Office. The Issuer, the Indenture Trustee, the Note Registrar, the Paying Agent and any agents of any of them, may treat a Person in whose name a Note is registered as the owner of such Note
for the purpose of receiving payments in respect of such Note and for all other purposes, and none of the Issuer, the Indenture Trustee, the Note Registrar, the Paying Agent or any agent of any of them, shall be affected by notice to the contrary.
None of the Issuer, the Indenture Trustee, any agent of the Indenture Trustee, any Paying Agent or the Note Registrar will have any responsibility or liability for any aspect of the records relating to or payments made on account of beneficial
ownership of a Global Note or for maintaining, supervising or reviewing any records relating to such beneficial ownership. 
 (b)
Exchange of Notes. Subject to Section 5.4, upon surrender for transfer of any Note of any Series or Class at the Place of Payment, the Issuer may execute, and, upon receipt of the documents required by
Section 6.3 and such surrendered Note, together with an Issuer’s Certificate, the Indenture Trustee will authenticate and deliver, in the name of the designated transferee or transferees, one or more new Notes of such
Series or Class of any authorized denominations, of a like aggregate Initial Note Balance and Stated Maturity Date and of like terms. Subject to Section 5.4, Notes of any Series or Class may be exchanged for other
Notes of such Series or Class of any authorized denominations, of a like aggregate Initial Note Balance and Stated Maturity Date and of like terms, upon surrender of the Notes to be exchanged at the Place of Payment. Whenever any Notes are so
surrendered for exchange, the Issuer will execute, and the Indenture Trustee or the related Authenticating Agent will authenticate and deliver the Notes which the Noteholders making the exchange are entitled to receive. 

(c) Issuer Obligations. All Notes issued upon any transfer or exchange of Notes shall be the valid and legally binding obligations of
the Issuer, evidencing the same debt, and entitled to the same benefits under this Base Indenture, as the Notes surrendered upon such transfer or exchange. 

(d) Endorsement of Notes to be Transferred or Exchanged. Every Note presented or surrendered for transfer or exchange will (if so
required by the Issuer, the Note Registrar or the Indenture Trustee) be duly endorsed, or be accompanied by a written instrument of transfer in form satisfactory to the Issuer, the Indenture Trustee, and the Note Registrar duly executed, by the
Noteholder thereof or such Noteholder’s attorney duly authorized in writing, with such signature guaranteed by an “eligible guarantor institution” meeting the requirements of the Securities Transfer Agent’s Medallion Program
(“STAMP”). 

  
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 (e) No Service Charge. Unless otherwise provided in the Note to be transferred or
exchanged, no service charge will be assessed against any Noteholder for any transfer or exchange of Notes, but the Issuer, the Indenture Trustee, and the Note Registrar may require payment of a sum sufficient to cover any tax or other governmental
charge that may be imposed in connection with any transfer or exchange of Notes before the transfer or exchange will be complete, other than exchanges pursuant to Section 5.4 not involving any transfer. 

(f) Deemed Representations by Transferees of Rule 144A Notes. Each transferee (including the initial Noteholder or Owner) of a Rule
144A Note or of a beneficial interest therein shall be deemed by accepting such Note or beneficial interest, to have made all the certifications, representations and warranties set forth in the Rule 144A Note Transfer Certificate attached to
Exhibit B-1 attached hereto. 
 (g) Deemed Representations by Transferees of Regulation S
Notes. Each transferee (including the initial Noteholder or Owner) of a Regulation S Note or of a beneficial therein shall be deemed by accepting such Note or beneficial interest, to have made all the certifications, representations and
warranties set forth in the Regulation S Note Transfer Certificate attached to Exhibit B-2 attached hereto. 

(h) Conditions to Transfer. No sale, pledge or other transfer (a “Transfer”) of any Notes shall be made unless
that Transfer is made pursuant to an effective registration statement under the 1933 Act and effective registration or qualification under applicable state securities laws or is made in a transaction that does not require such registration or
qualification. If a Transfer is made without registration under the 1933 Act (other than in connection with the initial issuance thereof by the Issuer), then the Note Registrar, the Indenture Trustee, Administrator, on behalf of the Issuer, shall
refuse to register such Transfer unless the Note Registrar receives either: 
 (i) the Regulation S Note Transfer Certificate
or Rule 144A Note Transfer Certificate and such other information as may be required pursuant to this Section 6.5; or 

(ii) if the Transfer is to be made to an Issuer Affiliate in a transaction that is exempt from registration under the 1933 Act,
an Opinion of Counsel reasonably satisfactory to the Issuer and the Note Registrar to the effect that such Transfer may be made without registration under the 1933 Act (which Opinion of Counsel shall not be an expense of the Trust Estate or of the
Issuer, the Indenture Trustee or the Note Registrar in their respective capacities as such). 
 None of the Administrator, the Issuer, the
Indenture Trustee or the Note Registrar is obligated to register or qualify the Notes under the 1933 Act or any other securities law or to take any action not otherwise required under this Base Indenture to permit the transfer of any Note without
registration or qualification. Any Noteholder of a Note desiring to effect such a Transfer shall, and upon acquisition of such a Note shall be deemed to have agreed to, indemnify the Indenture Trustee, the Note Registrar, the Administrator, the
Servicer and the Issuer against any liability that may result if the Transfer is not so exempt or is not made in accordance with the 1933 Act and applicable state securities laws. 

In connection with any Transfer of Notes in reliance on Rule 144A, the Administrator shall furnish upon request of a Noteholder to such
Noteholder and any prospective purchaser designated by such Noteholder the information required to be delivered under paragraph (d)(4) of Rule 144A. 

  
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 In the event that a Note is transferred to a Person that does not meet the requirements of
this Section 6.5 and/or the requirements of the related Indenture Supplement, such transfer will be of no force and effect, will be void ab initio, and will not operate to transfer any right to such Person,
notwithstanding any instructions to the contrary to the Issuer, the Indenture Trustee or any intermediary; and the Indenture Trustee shall not make any payment on such Note for as long as such Person is the Noteholder of such Note and the Indenture
Trustee shall have the right to compel such Person to transfer such Note to a Person who does meet the requirements of this Section 6.5. 

(i) Transfers of Ownership Interests in Global Notes. Transfers of beneficial interests in a Global Note representing Book-Entry Notes
may be made only in accordance with the rules and regulations of the Depository (and, in the case of a Regulation S Global Note only to beneficial owners who are not “U.S. persons” (as such term is defined in Regulation S) in accordance
with the rules and regulations of Euroclear or Clearstream) and the transfer restrictions contained in the legend on such Global Note and exchanges or transfers of interests in a Global Note may be made only in accordance with the following: 

(i) General Rules Regarding Transfers of Global Notes. Subject to clauses (ii) through (vii) of this
Section 6.5(i), Transfers of a Global Note representing Book-Entry Notes shall be limited to Transfers of such Global Note in whole, but not in part, to nominees of the Depository or to a successor of the Depository or such
successor’s nominee. 
 (ii) Rule 144A Global Note to Regulation S Global Note. If an owner of a beneficial
interest in a Rule 144A Global Note related to a Series and/or Class deposited with or on behalf of the Depository wishes at any time to exchange its interest in such Rule 144A Global Note for an interest in a Regulation S Global Note for that
Series and/or Class, or to transfer its interest in such Rule 144A Global Note to a Person who wishes to take delivery thereof in the form of an interest in a Regulation S Global Note for that Series and/or Class, such Note Owner (or transferee),
provided such Note Owner (or transferee) is not a “U.S. person” (as such term is defined in Regulation S), may, subject to the rules and procedures of the Depository, exchange or cause the exchange of such interest in such Rule 144A
Global Note for a beneficial interest in the Regulation S Global Note for that Series and/or Class. Upon the receipt by the Indenture Trustee of (A) instructions from the Depository directing the Indenture Trustee to cause to be credited a
beneficial interest in a Regulation S Global Note in an amount equal to the beneficial interest in such Rule 144A Global Note to be exchanged but not less than the minimum denomination applicable to the owner’s Notes held through a Regulation S
Global Note, (B) a written order given in accordance with the Depository’s procedures containing information regarding the participant account of the Depository and, in the case of a transfer pursuant to and in accordance with Regulation
S, the Euroclear or Clearstream account to be credited with such increase and (C) a certificate (each, a “Regulation S Note Transfer Certificate”) in the form of Exhibit B-2
hereto given by the Note Owner or its transferee stating that the exchange or transfer of such interest has been made in compliance with the transfer restrictions applicable to the Global Notes, including the requirements that the Note Owner

  
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or its transferee is not a “U.S. person” (as such term is defined in Regulation S) and the transfer is made pursuant to and in accordance with Regulation S, then the Indenture Trustee
and the Note Registrar, shall reduce the principal amount of the Rule 144A Global Note for the related Series and/or Class and increase the principal amount of the Regulation S Global Note for the related Series and/or Class by the
aggregate principal amount of the beneficial interest in the Rule 144A Global Note to be exchanged, and shall instruct Euroclear or Clearstream, as applicable, concurrently with such reduction, to credit or cause to be credited to the account of the
Person specified in such instructions a beneficial interest in the Regulation S Global Note for the related Series and/or Class equal to the reduction in the principal amount of the Rule 144A Global Note for the related Series and/or Class.

 (iii) Regulation S Global Note to Rule 144A Global Note. If an owner of a beneficial interest in a Regulation S
Global Note related to a Series and/or Class deposited with or on behalf of the Depository wishes at any time to transfer its interest in such Regulation S Global Note to a Person who wishes to take delivery thereof in the form of an interest
in a Rule 144A Global Note for such Series and/or Class, such owner’s transferee may, subject to the rules and procedures of the Depository, exchange or cause the exchange of such interest for an equivalent beneficial interest in a Rule 144A
Global Note for such Series and/or Class. Upon the receipt by the Indenture Trustee and the Note Registrar, of (A) instructions from the Depository directing the Indenture Trustee and the Note Registrar, to cause to be credited a beneficial
interest in a Rule 144A Global Note in an amount equal to the beneficial interest in such Regulation S Global Note to be exchanged but not less than the minimum denomination applicable to such owner’s Notes held through a Rule 144A Global Note,
to be exchanged, such instructions to contain information regarding the participant account with the Depository to be credited with such increase, and (B) a certificate (each, a “Rule 144A Note Transfer Certificate”) in
the form of Exhibit B-1 hereto given by the transferee of such beneficial interest, then the Indenture Trustee will reduce the principal amount of the Regulation S Global Note and increase the principal
amount of the Rule 144A Global Note for the related Series and/or Class by the aggregate principal amount of the beneficial interest in the Regulation S Global Note for the related Series and/or Class to be transferred and the Indenture
Trustee and the Note Registrar, shall instruct the Depository, concurrently with such reduction, to credit or cause to be credited to the account of the Person specified in such instructions a beneficial interest in the Rule 144A Global Note for the
related Series and/or Class equal to the reduction in the principal amount of the Regulation S Global Note for the related Series and/or Class. 

(iv) Transfers of Interests in Rule 144A Global Note. An owner of a beneficial interest in a Rule 144A Global Note may
transfer such interest in the form of a beneficial interest in such Rule 144A Global Note in accordance with the procedures of the Depository without the provision of written certification. 

(v) Transfers of Interests in Regulation S Global Note. An owner of a beneficial interest in a Regulation S Global Note
may transfer such interest in the form of a beneficial interest in such Regulation S Global Note in accordance with the applicable procedures of Euroclear and Clearstream without the provision of written certification. 

  
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 (vi) Regulation S Global Note to Regulation S Definitive Note.
Subject to Section 5.4(j) hereof, an owner of a beneficial interest in a Regulation S Global Note for the related Series and/or Class deposited with or on behalf of a Depository may at any time transfer such
interest for a Regulation S Definitive Note upon provision to the Indenture Trustee, the Issuer and the Note Registrar of a Regulation S Note Transfer Certificate. 

(vii) Rule 144A Global Note to Rule 144A Definitive Note. Subject to Section 5.4(j) hereof, an
owner of a beneficial interest in a Rule 144A Global Note deposited with or on behalf of a Depository may at any time transfer such interest for a Rule 144A Definitive Note, upon provision to the Indenture Trustee, the Issuer and the Note Registrar
of a Rule 144A Note Transfer Certificate. 
 (j) Transfers of Definitive Notes. In the event of any Transfer of a Regulation S
Definitive Note, a Regulation S Note Transfer Certificate shall be provided prior to the Indenture Trustee’s or Note Registrar’s registration of such Transfer. In the event of any Transfer of a Rule 144A Definitive Note, a Rule 144A Note
Transfer Certificate shall be provided prior to the Indenture Trustee’s or Note Registrar’s registration of such Transfer. 
 (k)
ERISA Restrictions. Neither the Note Registrar nor the Indenture Trustee shall register the Transfer of any Definitive Notes unless the prospective transferee has delivered to the Indenture Trustee and the Note Registrar a certification to
the effect that either (i) it is not, and is not acquiring, holding or transferring the Notes, or any interest therein, or on behalf of, or using assets of, an “employee benefit plan” as defined in Section 3(3) of ERISA, a plan
described in section 4975(e)(1) of the Code, an entity which is deemed to hold the assets of any such employee benefit plan or plan pursuant to 29 C.F.R. Section 2510.3-101 as modified by
Section 3(42) of ERISA (the “Plan Asset Regulations”), which employee benefit plan, plan or entity is subject to Title I of ERISA or section 4975 of the Code, or a governmental,
non-U.S., church or other plan which is subject to any U.S. federal, state, local or other law that is substantially similar to Title I of ERISA or section 4975 of the Code (“Similar
Law”), or (ii) (A) as of the date of transfer or purchase, it believes that such Notes are properly treated as indebtedness without substantial equity features for purposes of the Plan Asset Regulations and agrees to so treat such
Notes and (B) the transferee’s acquisition, holding and disposition of the Notes or any interest therein will satisfy the requirements of Prohibited Transaction Class Exemption (“PTCE”) 84-14 (relating to transactions effected by a qualified professional asset manager), PTCE 90-1 (relating to investments by insurance company pooled separate accounts), PTCE 91-38 (relating to investments in bank collective investment funds), PTCE 95-60 (relating to transactions involving insurance company general accounts), PTCE 96-23 (relating to transactions directed by an in-house professional asset manager) or the statutory prohibited transaction exemption for service providers set forth in
section 408(b)(17) of ERISA and section 4975(d)(20) of the Code or a similar class, statutory or administrative exemption and will not result in a non-exempt prohibited transaction under section 406 of ERISA
or section 4975 of the Code (or, in the case of a governmental, non-U.S., church or other plan subject to such Similar Law, will not violate any such Similar Law). In the case of any Book-Entry Note, each
transferee of such Note or any beneficial interest therein by virtue of its acquisition of such Note will be deemed to represent either (i) or (ii) above. 

  
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 (l) No Liability of Indenture Trustee for Transfers. To the extent permitted under
applicable law, the Indenture Trustee (in any of its capacities) shall be under no liability to any Person for any registration of transfer of any Note that is in fact not permitted by this Section 6.5 or for making any
payments due to the Noteholder thereof or taking any other action with respect to such Noteholder under the provisions of this Base Indenture so long as the transfer was registered by the Indenture Trustee and the Note Registrar in accordance with
the requirements of this Base Indenture. 
 (m) Deemed Representations regarding Fannie Mae ́s Rights. Each transferee of a Term
Note or of a beneficial interest therein, by accepting such Term Note or beneficial interest, shall be deemed to have made, acknowledged and represented to and with the Indenture Trustee and Fannie Mae, each of the following statements: 

(i) the rights of any Noteholder will be subject and subordinate in all respects to all rights, powers, and prerogatives of
Fannie Mae under the Fannie Mae Lender Contract, and no Noteholder enjoys privity of contract with Fannie Mae or is entitled to any benefit under the Acknowledgment Agreement except to the extent that the Indenture Trustee is entering into and shall
perform under the Acknowledgment Agreement in its capacity as Indenture Trustee for the benefit of the Noteholders; 
 (ii)
Fannie Mae has the right to terminate the Servicer with or without cause and controls the process for the disposition of assets under the Acknowledgment Agreement in the event of a termination of the Servicer or other transfer of MSRs; 

(iii) pursuant to the Fannie Mae Lender Contract, Fannie Mae has the right to offset liabilities owed to it subject to the
Acknowledgment Agreement against fees and compensation paid to the Servicer prior to any distribution of excess servicing to any Noteholder; and 

(iv) Holders of any Term Notes issued on or after the Amendment Effective Date further agree that, from time to time, Fannie
Mae and the Servicer have the right to agree to effect amendments to the Acknowledgment Agreement, and Fannie Mae may make changes to the Fannie Mae Guide. Such Noteholders will be deemed to have consented to the terms of any amendments,
restatements, modifications or any other supplements entered into with respect to the Transaction Documents as may be necessary or advisable in the Administrator’s discretion for the terms of the Transaction Documents to conform to the terms
set forth in any amendments to the Acknowledgment Agreement or changes to the Fannie Mae Guide. 
 Section 6.6. Mutilated, Destroyed, Lost and
Stolen Notes. 
 (a) If (1) any mutilated Note is surrendered to the Indenture Trustee or the Note Registrar, or the Issuer, the
Note Registrar or the Indenture Trustee receive evidence to their satisfaction of the destruction, loss or theft of any Note, and (2) there is delivered to the Issuer, the Note Registrar or the Indenture Trustee such security or indemnity as
may be required by them to save each of them harmless, then, in the absence of notice to the Issuer, the Note Registrar or the 

  
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Indenture Trustee that such Note has been acquired by a protected purchaser, the Issuer may execute, and, upon receipt of the documents required by Section 6.3, together
with an Issuer’s Certificate, the Indenture Trustee will authenticate and deliver, in exchange for or in lieu of any such mutilated, destroyed, lost or stolen Note, a new Note of like tenor, Series or Class, Stated Maturity Date and Initial
Note Balance, bearing a number not contemporaneously Outstanding. 
 (b) In case any such mutilated, destroyed, lost or stolen Note has
become or is about to become due and payable, the Issuer in its discretion may, instead of issuing a new Note, pay such Note on a Payment Date in accordance with Section 4.5. 

(c) Upon the issuance of any new Note under this Section, the Issuer, the Indenture Trustee, or the Note Registrar may require the payment of
a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of the Indenture Trustee) connected therewith. 

(d) Every new Note issued pursuant to this Section in lieu of any mutilated, destroyed, lost or stolen Note will constitute an original
additional contractual obligation of the Issuer, whether or not the mutilated, destroyed, lost or stolen Note will be at any time enforceable by anyone, and will be entitled to all the benefits of this Base Indenture equally and proportionately with
any and all other Notes of the same Series or Class duly issued hereunder. 
 (e) The provisions of this Section are exclusive and will
preclude (to the extent lawful) all other rights and remedies with respect to the replacement or payment of mutilated, destroyed, lost or stolen Notes. 

Section 6.7. Payment of Interest; Interest Rights Preserved; Withholding Taxes. 

(a) Unless otherwise provided with respect to such Note pursuant to Section 6.1, interest payable on any Note will be
paid to the Person in whose name that Note (or one or more Predecessor Notes) is registered at the close of business on the most recent Record Date. 

(b) Subject to Section 6.7(a), each Note delivered under this Base Indenture upon transfer of or in exchange for or
in lieu of any other Note will carry the rights to interest and fees accrued or principal accreted and unpaid, and to accrue or accrete, which were carried by such other Note. 

(c) The right of any Noteholder to receive interest and fees on or principal of any Note shall be subject to any applicable withholding or
deduction imposed pursuant to the Code or other applicable tax law, including foreign withholding and deduction. Any amounts properly so withheld or deducted shall be treated as actually paid to the appropriate Noteholder. In addition, in order to
receive payments on its Notes free of U.S. federal withholding and backup withholding tax, each Noteholder shall timely furnish the Indenture Trustee on behalf of the Issuer, (1) any applicable IRS Form
W-9, W-8BEN, W-8BEN-E, W-8ECI or W-8IMY (with any applicable attachments) and (2) any documentation that is required under FATCA to enable the Issuer, the Indenture Trustee and any other agent of the Issuer to determine their duties and
liabilities with respect to any taxes they may be required to withhold in respect of such Note or the Noteholder of 

  
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such Note or beneficial interest therein, in each case, prior to the first Payment Date after such Noteholder’s acquisition of Notes and at such time or times required by law or that the
Indenture Trustee on behalf of the Issuer or their respective agents may reasonably request, and shall update or replace such IRS form or documentation in accordance with its terms or its subsequent amendments. Each Noteholder will provide the
applicable replacement IRS form or documentation every three (3) years (or sooner if there is a transfer to a new Noteholder or if required by applicable law). In each case above, the applicable IRS form or documentation shall be properly
completed and signed under penalty of perjury. 
 Section 6.8. Persons Deemed Owners. 

The Issuer, the Indenture Trustee, the Note Registrar and any agent of the Issuer, the Indenture Trustee or the Note Registrar may treat the
Person in whose name the Note is registered in the Note Registrar as the owner of such Note for the purpose of receiving payment of principal of and (subject to Section 6.7) interest on such Note and for all other purposes
whatsoever, whether or not such Note is overdue, and neither the Issuer, the Indenture Trustee, the Note Registrar, nor any agent of the Issuer, the Indenture Trustee, or the Note Registrar will be affected by notice to the contrary. 

Section 6.9. Cancellation. 

All Notes surrendered for payment, redemption, transfer, conversion or exchange will, if surrendered to any Person other than the Indenture
Trustee, be delivered to the Indenture Trustee and, if not already canceled, will be promptly canceled by it. The Issuer may at any time deliver to the Indenture Trustee for cancellation any Notes previously authenticated and delivered hereunder
which the Issuer may have acquired in any manner whatsoever, and all Notes so delivered will be promptly canceled by the Indenture Trustee. No Note will be authenticated in lieu of or in exchange for any Notes canceled as provided in this Section,
except as expressly permitted by this Base Indenture. The Indenture Trustee will dispose of all canceled Notes in accordance with its customary procedures. 

Section 6.10. New Issuances of Notes. 

(a) Issuance of New Notes. The Issuer may, from time to time, direct the Indenture Trustee, on behalf of the Issuer, to issue new Notes
of any Series or Class, so long as the conditions precedent set forth in Section 6.10(b) are satisfied if, at the time of issuance, other Notes have already been issued and remain Outstanding. On or before the Issuance Date
of new Notes of any Series or Class of Notes, the Issuer shall execute and deliver the required Indenture Supplement which shall incorporate the principal terms with respect to such additional Series or Class of Notes. The Indenture
Trustee shall execute any such Indenture Supplement without the consent of any Noteholders, the Issuer shall execute the Notes of such Series or Class and the Notes of such Series or Class shall be delivered to the Indenture Trustee (along
with the other deliverables required hereunder) for authentication and delivery. Notwithstanding the foregoing, the conditions to the issuance of the new Notes contemplated by Section 6.10(b) shall not apply to the issuance
of any Series of Notes on the Closing Date. 

  
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 (b) Conditions to Issuance of New Notes. The issuance of the Notes of any Series or
Class after the Closing Date pursuant to this Section 6.10 shall be subject to the satisfaction of the following conditions: 

(i) no later than ten (10) Business Days before the date that the new issuance is to occur, the Issuer delivers to the
Indenture Trustee, each VFN Noteholder and each Note Rating Agency that has rated any Outstanding Note that will remain Outstanding after the new issuance, notice of such new issuance; 

(ii) on or prior to the date that the new issuance is to occur, the Issuer delivers to the Indenture Trustee and each Note
Rating Agency that has rated any Outstanding Note that will remain Outstanding after the new issuance, an Issuer Certificate to the effect that (x) the Issuer reasonably believes that the new issuance will not cause a material Adverse Effect on any
Outstanding Notes or a Secured Party, and (y) all conditions precedent set forth in this Base Indenture to the issuance of such Notes have been met, an Issuer Tax Opinion with respect to such proposed issuance, and an Opinion of Counsel: 

(A) to the effect that all instruments furnished to the Indenture Trustee conform to the requirements of this Base Indenture
for the Indenture Trustee to authenticate and deliver such Notes; 
 (B) to the effect that the form and terms of such Notes
have been established in conformity with the provisions of this Base Indenture; and 
 (C) covering such other matters as the
Indenture Trustee may reasonably request; 
 (iii) on or prior to the date that the new issuance is to occur, the Issuer will
have delivered to the Indenture Trustee and each Note Rating Agency that is at that time rating Outstanding Notes that will remain Outstanding after the new issuance, an Opinion of Counsel to the effect that the Issuer has the requisite power and
authority to issue such Notes and such Notes have been duly authorized and delivered by the Issuer and, assuming due authentication and delivery by the Indenture Trustee, constitute legal, valid and binding obligations of the Issuer enforceable in
accordance with their terms (subject, as to enforcement of remedies, to applicable bankruptcy, reorganization, insolvency, moratorium or other laws and legal principles affecting creditors’ rights generally from time to time in effect and to
general equitable principles, whether applied in an action at law or in equity) and are entitled to the benefits of this Base Indenture, equally and ratably with all other Outstanding Notes, if any, of such Series or Class subject to the terms
of this Base Indenture and each Indenture Supplement; 
 (iv) if any additional conditions to the new issuance are specified
in writing to the Issuer by a Note Rating Agency that is at that time rating any Outstanding Note that will remain Outstanding after the new issuance, the Issuer satisfies such conditions, if they are applicable to such Notes; 

  
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 (v) either (1) the Issuer obtains written confirmation from each Note
Rating Agency that is at that time rating any Outstanding Note at the request of the Issuer that will remain Outstanding after the new issuance that the new issuance will not have a Ratings Effect on any Outstanding Notes that are rated by such Note
Rating Agency at the request of the Issuer or (2) if the Administrator and the Administrative Agents determine in their reasonable judgment that an applicable Note Rating Agency no longer provides such written confirmation described in the
foregoing clause (1), (a) the Administrator shall provide notice of such new issuance to the related Note Rating Agency and (b) each of the parties that would be Administrative Agents after giving effect to the new issuance shall have
provided their prior written consent to such new issuance which may be given in reliance in part on the Issuer’s Certificate delivered pursuant to Section 6.10(b)(ii) above; 

(vi) no Event of Default shall have occurred and be continuing, as evidenced by an Issuer’s Certificate, unless
(a) the proceeds of such new Notes are applied in whole or in part to redeem all other Outstanding Notes and/or (b) the Noteholders of any Notes that will remain Outstanding consent to such issuance of new Notes; 

(vii) on or prior to the date that the new issuance is to occur, the Issuer will have delivered to the Indenture Trustee an
Indenture Supplement and, if applicable, the Issuer Certificate; 
 (viii) any Class of VFN must have the same Stated
Maturity Date and Interim Payment Date as any and all other Outstanding Classes of VFNs; 
 (ix) if any Class of VFNs is
beneficially owned by the beneficial owner of the Issuer, all Classes of VFNs must be beneficially owned by the beneficial owner of the Issuer for United States federal income tax purposes and the financing of such Class of VFNs shall be
subject to the requirement for an Issuer Tax Opinion; 
 (x) for any new Series with respect to which there is a new
Administrative Agent not currently set forth under the terms of the definition of “Administrative Agent,” the Administrative Agent shall have consented to the issuance of such Series, unless the Notes in respect of which the existing
Administrative Agent’s consent is required, are paid in full and all related commitments terminated in writing by the Issuer and any remaining accrued commitment fees paid in full to such terminated Administrative Agent, in connection with the
issuance of the new Series with the different Administrative Agent; and 
 (xi) any other conditions specified in the
applicable Indenture Supplement; provided, however, that any one of the aforementioned conditions may be eliminated (other than clause (v) above and the requirement for an Issuer Tax Opinion) or modified as a condition
precedent to any new issuance of a Series or Class of Notes if the Issuer has obtained approval from each Note Rating Agency that is at that time rating any Outstanding Notes that will remain Outstanding after the new issuance. 

(c) No Notice or Consent Required to or from Existing Noteholders and Owners. Except as provided in
Section 6.10(b) above, the Issuer and the Indenture Trustee will not be required to provide prior notice to or to obtain the consent of any Noteholder or Note Owner of Notes of any Outstanding Series or Class to issue
any additional Notes of any Series or Class. 

  
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 (d) Other Provisions. There are no restrictions on the timing or amount of any
additional issuance of Notes of an Outstanding Series or Class within a Series, of Notes, so long as the conditions described in Section 6.10(b) are met or waived. 

(e) Sale Proceeds. The proceeds of sale of any new Series of Notes shall be wired to the Collection and Funding Account, and the
Indenture Trustee shall disburse such sale proceeds at the direction of the Administrator on behalf of the Issuer, except to the extent such funds are needed to ensure that no the Borrowing Base Deficiency exists. The Administrator on behalf of the
Issuer may direct the Issuer to apply such proceeds to reduce pro rata based on Invested Amounts, the VFN Principal Balance of any Classes of Variable Funding Notes, or to redeem any Series of Notes in accordance with
Section 13.1. In the absence of any such direction, the proceeds of such sale shall be distributed to PMC or at PMC’s direction on the Issuance Date for the newly issued Notes. The Administrator shall deliver to the
Indenture Trustee a report demonstrating that the release of sale proceeds pursuant to the Issuer’s direction will not cause a Borrowing Base Deficiency, as a precondition to the Indenture Trustee releasing such proceeds. 

(f) Increase or Reduction in Maximum VFN Principal Balance. The increase or reduction in the Maximum VFN Principal Balance in respect
of any Outstanding Class of Notes, the increase or decrease of any Advance Rates in respect thereof and/or the increase or decrease of interest rates in respect thereof shall not constitute an issuance of “new Notes” for purpose of
this Section 6.10. 
 Article VII 

Satisfaction and Discharge; Cancellation of Notes Held by the Issuer or PMC 

Section 7.1. Satisfaction and Discharge of Indenture. 

This Base Indenture will cease to be of further effect with respect to any Series or Class of Notes (except as to any surviving rights of
transfer or exchange of Notes of that Series or Class expressly provided for herein or in the form of Note for that Series or Class), and the Indenture Trustee, on demand of and at the expense of the Issuer, will execute proper instruments
acknowledging satisfaction and discharge of this Base Indenture, when: 
 (a) all Notes of that Series or Class theretofore
authenticated and delivered (other than (i) Notes of that Series or Class which have been destroyed, lost or stolen and which have been replaced or paid as provided in Section 6.6, and (ii) Notes of that Series or
Class for whose payment money has theretofore been deposited in trust or segregated and held in trust by the Issuer and thereafter repaid to the Issuer or discharged from that trust) have been delivered to the Indenture Trustee canceled or for
cancellation or have been redeemed in accordance with Article XIII hereof or the applicable Indenture Supplement (in which case, such redeemed Notes shall be deemed to have been canceled and shall be immediately surrendered to the Indenture
Trustee in exchange for the related redemption price); 

  
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 (b) with respect to the discharge of this Base Indenture for each Series or Class, the
Issuer has paid or caused to be paid all sums payable hereunder (including payments to the Indenture Trustee (in all its capacities) pursuant to Section 11.7 with respect to the Notes or in respect of Fees, and any and all
other amounts due and payable pursuant to this Base Indenture; and 
 (c) the Issuer has delivered to the Indenture Trustee an
Officer’s Certificate and an Opinion of Counsel each stating that all conditions precedent herein provided for relating to the satisfaction and discharge of this Base Indenture with respect to the Notes of that Series or Class have been
complied with. 
 Notwithstanding the satisfaction and discharge of this Base Indenture with respect to any Series or Class of Notes,
the obligations of the Administrator to the Indenture Trustee with respect to any Series or Class of Notes under Section 11.7 and of the Issuer to the Securities Intermediary under Section 4.9
and the obligations and rights of the Indenture Trustee under Section 7.2 and Section 11.3, respectively, will survive such satisfaction and discharge. 

Section 7.2. Application of Trust Money. 

All money and obligations deposited with the Indenture Trustee pursuant to Section 7.1 and all money received by the
Indenture Trustee in respect of such obligations will be held in trust and applied by it or the Paying Agent, in accordance with the provisions of the Class of Notes in respect of which it was deposited and this Base Indenture and the related
Indenture Supplement, to the payment to the Persons entitled thereto, of the principal and interest for whose payment that money and obligations have been deposited with or received by the Indenture Trustee or the Paying Agent. 

Section 7.3. Cancellation of Notes Held by the Issuer or PMC. 

If the Issuer, PMC or any of their respective Affiliates holds any Notes, that Noteholder may, subject to any provision of a related Indenture
Supplement limiting the repayment of such Notes by notice from that Noteholder to the Indenture Trustee, cause the Notes to be repaid and canceled, whereupon the Notes will no longer be Outstanding; provided, that, such repayment and
cancelation shall be subject to the written consent of the Administrative Agent. 
 Section 7.4. Termination of Servicer’s Servicing Rights;
Fannie Mae’s Rights. 
 (a) The Security Interest is subject and subordinate to all rights, remedies, and prerogatives of Fannie
Mae under and in connection with the Acknowledgment Agreement and the Fannie Mae Requirements and each Noteholder acknowledges such senior rights, remedies and prerogatives upon the acquisition of an interest in a Note. Notwithstanding anything to
the contrary in this Indenture or any other Transaction Document, each Noteholder agrees to the following: 
 (1) the rights
of any Noteholder will be subject and subordinate in all respects to all rights, powers, and prerogatives of Fannie Mae under the Fannie Mae Lender 

  
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Contract, and no Noteholder enjoys privity of contract with Fannie Mae or is entitled to any benefit under the Acknowledgment Agreement except to the extent that the Indenture Trustee is entering
into and shall perform under the Acknowledgment Agreement in its capacity as Indenture Trustee for the benefit of the Noteholders; 

(2) Fannie Mae has the right to terminate the Servicer with or without cause and controls the process for the disposition of
assets under the Acknowledgment Agreement in the event of a termination of the Servicer or other transfer of MSRs; 
 (3)
pursuant to the Fannie Mae Lender Contract, Fannie Mae has the right to offset liabilities owed to it subject to the Acknowledgment Agreement against fees and compensation paid to the Servicer prior to any distribution of excess servicing to any
Noteholder; and 
 (4) Holders of any Term Notes issued on or after the Amendment Effective Date further agree that, from
time to time, Fannie Mae and the Servicer have the right to agree to effect amendments to the Acknowledgment Agreement, and Fannie Mae may make changes to the Fannie Mae Guide. Such Noteholders will be deemed to have consented to the terms of any
amendments, restatements, modifications or any other supplements entered into with respect to the Transaction Documents as may be necessary or advisable in the Administrator’s discretion for the terms of the Transaction Documents to conform to
the terms set forth in any amendments to the Acknowledgment Agreement or changes to the Fannie Mae Guide. 
 (b) As a result of the
termination of the Servicer’s Servicing Rights in all or a portion of the Collateral, Issuer acknowledges that: 
 (1)
the Indenture Trustee, on behalf of the Noteholders, shall have rights pursuant to and in accordance with the Acknowledgment Agreement with respect to the MSRs related to the Subject Mortgages (including, (i) the ability to retain the servicing
of, with the consent of Fannie Mae, the Subject Mortgages and (ii) the ability to appoint, with the consent of Fannie Mae, a Proposed New Servicer that will assume the duties rights and obligations of the Servicer with respect to the Subject
Mortgages); and 
 (2) notwithstanding such rights, none of the Indenture Trustee, the Administrative Agent or the
Noteholders shall have any responsibility, express or implied, to protect or consider Servicer’s rights or interests in connection with any of the Indenture Trustee’s actions or inactions pursuant to the Acknowledgment Agreement, including
the receipt of any amounts with respect to the Subject Mortgages following any transfer of Issuer responsibility. 
 (c) Any Net Proceeds
received by the Indenture Trustee shall be applied first, to satisfy any costs and expenses of the Indenture Trustee, the transferee servicer or any of their affiliates in connection with any of the transactions contemplated by any of the
Transaction Documents and second, to reduce the other obligations. 

  
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 (d) The Servicer acknowledges that, notwithstanding the termination of its Servicing Rights
under the Fannie Mae Lender Contract, it remains obligated in accordance with the terms hereof to the extent that any amounts payable to the Indenture Trustee, the Administrative Agent, the Noteholders or any Indemnified Party hereunder have not
been paid in full. 
 (e) Any provision providing for the exercise of any action or discretion by the Indenture Trustee, (i) with
respect to Sections 5, 6 or 7 of the Acknowledgment Agreement as a result of a Transfer/Engagement Request or termination of Servicing Rights under the Fannie Mae Lender Contract, shall be exercised by the Indenture Trustee at the written direction
of 100% of the VFN Noteholders, and (ii) with respect to any other provision of the Acknowledgment Agreement (other than Sections 5, 6 and 7 thereof), shall be exercised by the Indenture Trustee at the written direction of the Majority
Noteholders of all Outstanding Notes. 
 Article VIII 

Events of Default and Remedies 

Section 8.1. Events of Default. 

“Event of Default” means, any one of the following events (whatever the reason for such Event of Default, and whether
it is voluntary or involuntary, or effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body): 

(a) unless otherwise specified in any Indenture Supplement with respect to any Class, default (which default continues for a period of two
(2) Business Days following written notice (which may be in electronic form) from the Indenture Trustee or the Administrative Agent), in the payment: (1) of (i) any interest or any Fees due and owing on any Payment Date, (ii) any
Scheduled Principal Payment Amount due and owing on any date, or (iii) any Early Amortization Event Payment Amount due and owing on any date; or (2) in full of all accrued and unpaid interest and the outstanding Note Balance of the Notes
of any Series or Class on or before the applicable Stated Maturity Date; 
 (b) the occurrence of an Insolvency Event as to the Issuer,
the Administrator or the Servicer; 
 (c) the Issuer or the Trust Estate shall have become subject to registration as an “investment
company” within the meaning of the Investment Company Act as determined by a court of competent jurisdiction in a final and non-appealable order; 

(d) PMC sells, transfers, pledges or otherwise disposes of the Owner Trust Certificate (except to a wholly-owned subsidiary of PMC) other than
pursuant to the terms and provisions of the Transaction Documents, whether voluntarily or by operation of law, foreclosure or other enforcement by a Person of its remedies against PMC, except with the consent of the Administrative Agent; 

  
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 (e) (i) any material provision of any Transaction Document shall at any time for any reason
(other than pursuant to the express terms thereof) cease to be valid and binding on or enforceable against the Issuer, the Administrator, the Servicer or any of their respective Affiliates intended to be a party thereto, (ii) the validity or
enforceability of any Transaction Document shall be contested by the Issuer, the Administrator, the Servicer or any of their respective Affiliates, (iii) a proceeding shall be commenced by the Issuer, the Administrator, the Servicer or any of
their respective Affiliates or any governmental body having jurisdiction over the Issuer, the Administrator, the Servicer or any of their respective Affiliates, seeking to establish the invalidity or unenforceability of any Transaction Document, or
(iv) the Issuer, the Administrator, the Servicer or any of their respective Affiliates shall deny in writing that it has any liability or obligation purported to be created under any Transaction Document; 

(f) the Administrator or any Affiliate thereof has taken any action which, or failed to take any action, the omission of which could
reasonably be expected to materially impair the interests of the Issuer in the Participation Certificates or the security interest or rights of the Indenture Trustee in the Trust Estate, subject only to the interests and rights of Fannie Mae;
provided, however, that if the event is capable of being cured in all respects by corrective action and has not resulted in a material adverse effect on the Noteholders’ interests in the Trust Estate, such event shall not become
an Event of Default unless it remains uncured for two (2) Business Days following its occurrence; 
 (g) following a Payment Date on
which a draw is made on a Series Reserve Account, the amount on deposit in such Series Reserve Account is not increased back to the related Series Reserve Required Amount (if applicable) within the time frame set forth in the related Indenture
Supplement; 
 (h) (A) any United States federal income tax is imposed on the Issuer as an association (or publicly traded partnership)
taxable as a corporation or a taxable mortgage pool taxable as a corporation, each for United States federal income tax purposes or any U.S. withholding tax is imposed on payments to the Issuer with respect to the Participation Certificates or
(B) a tax, ERISA, or other government lien, in any case, other than Permitted Liens, is imposed on the Participation Certificates or any property of the Issuer; 

(i) the occurrence of a Borrowing Base Deficiency which continues for a period of two (2) Business Days following written notice from the
Indenture Trustee or the Administrative Agent; 
 (j) the occurrence and continuation of an “Event of Default” (as defined in the
PC Repurchase Agreement) under the PC Repurchase Agreement; 
 (k) the occurrence of an “Event of Default” (as defined in the PC
Repo Guaranty) under the PC Repo Guaranty or the occurrence of an “Event of Default” (as defined in the PMH Repo Guaranty) under the PMH Repo Guaranty unless, with respect to the PMH Repo Guaranty, PMC has (i) repurchased or
foreclosed upon its security interest in the Sold MSR Excess Spread PC in satisfaction of its obligation to pay the PMH Repurchase Price, or (ii) removed the Sold MSR Express Spread PC and the related Sold MSR Portfolio from the Collateral
pursuant to 

  
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Section 2.1(b)(ii)(A)(1); 
 (l) any failure by PMC to
deliver (i) any Determination Date Report pursuant to Section 3.2 or (ii) any MSR Monthly Report pursuant to Section 3.3(f), which continues unremedied for a period of five
(5) Business Days after a Responsible Officer of PMC shall have obtained actual knowledge of such failure, or shall have received written or electronic notice from the Indenture Trustee or any Noteholder of such failure; 

(m) (i) (A) PMC shall fail to materially comply with the requirements of Sections 10.2(n), 10.3(a), 10.3(b),
10.3(c) or 10.3(d), or (B) PMC shall fail to provide notice of an Event of Default pursuant to the requirements set forth in Section 4.12; or (ii) the Issuer, the Servicer or the Administrator shall
breach or default in the due observance or performance of any of its other covenants or agreements in this Base Indenture, any Indenture Supplement or any other Transaction Document in any material respect (subject to any cure period provided
therein), and any such default shall continue for a period of five (5) Business Days after the earlier to occur of (a) actual discovery by a Responsible Officer of the Issuer, the Servicer or the Administrator, as applicable, or
(b) the date on which written or electronic notice of such failure, requiring the same to be remedied, shall have been given from the Indenture Trustee or any Noteholder to a Responsible Officer of the Issuer, the Servicer or the Administrator;

 (n) (i) any representation or warranty of the Issuer, the Servicer or the Administrator made in this Base Indenture, any Indenture
Supplement or any other Transaction Document in any material respect (other than under the PC Repurchase Agreement) shall prove to have been breached in any material respect as of the time when the same shall have been made or deemed made, and
continues uncured and unremedied for a period of ten (10) Business Days after the earlier to occur of (a) actual discovery by a Responsible Officer of the Issuer, the Servicer or the Administrator, as applicable, or (b) the date on
which written notice of such failure, requiring the same to be remedied, shall have been given to a Responsible Officer of the Issuer, the Servicer or the Administrator, as applicable; 

(o) (a) a final judgment or judgments for the payment of money in excess of $50,000 in the aggregate shall be rendered against the Issuer by
one or more courts, administrative tribunals or other bodies having jurisdiction over them, (b) an order of any court, administrative agency, arbitrator or governmental body rendered against PMC or the Issuer, which would have a material
Adverse Effect on the transactions contemplated hereunder or (c) an event has occurred which with notice or lapse of time or both would constitute such a default under clause (b) herein with respect to any such order of any court,
administrative agency, arbitrator or governmental body; 
 (p) following a Payment Date on which a draw is made on the Expense Reserve
Account, the amount on deposit in the Expense Reserve Account is not increased back to the related Expense Reserve Required Amount prior to the next Payment Date; 

(q) the occurrence of any action by Fannie Mae pursuant to the Acknowledgment Agreement to terminate the rights of PMC as servicer; 

(r) the occurrence of a Subservicer Termination Event; 

  
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 (s) the occurrence of any other event designated as an Event of Default in the related
Indenture Supplement. 
 Upon the occurrence of any such event none of the Administrator nor the Servicer shall be relieved from performing
its obligations in a timely manner in accordance with the terms of this Base Indenture, and each of the Administrator and the Servicer shall provide the Indenture Trustee, each Note Rating Agency for each Note then Outstanding, the Disposition
Manager and the Noteholders prompt notice of such failure or delay by it, together with a description of its effort to perform its obligations. Each of the Administrator, the Servicer and the Disposition Manager shall promptly notify the Indenture
Trustee in writing of any Event of Default or an event which with notice, the passage of time or both would become an Event of Default of which it has actual knowledge. For purposes of this Section 8.1, the Indenture
Trustee shall not be deemed to have knowledge of an Event of Default unless a Responsible Officer of the Indenture Trustee assigned to and working in the Corporate Trust Office has actual knowledge thereof or unless written notice of any event which
is in fact such an Event of Default is received by the Indenture Trustee from the Administrative Agent and such notice references the Notes, the Trust Estate or this Base Indenture. The Indenture Trustee shall provide notice of defaults in
accordance with Section 3.3(b) and Section 11.2. 
 Section 8.2. Acceleration of
Maturity; Rescission and Annulment. 
 (a) If an Event of Default of the kind specified in clauses (b), (c) or
(q) of Section 8.1 occurs, the unpaid principal amount of all of the Notes shall automatically become immediately due and payable without notice, presentment or demand of any kind. If any other Event of Default occurs
and is continuing, then and in each and every such case, the Indenture Trustee, at the written direction of (i) any of the Administrative Agent, (ii) the Majority Noteholders of all Outstanding Notes that are not Variable Funding Notes
(excluding any Retained Notes) or (iii) the Majority Noteholders for any Series of Variable Funding Notes Outstanding (excluding any Retained Notes), may declare the Note Balance of all the Outstanding Notes and all interest and principal
accrued and unpaid (if any) thereon and all other amounts due and payable under any Transaction Document to be due and payable immediately, and upon any such declaration each Note will become and will be immediately due and payable and the Revolving
Period with respect to such Series or Class shall immediately terminate, anything in this Base Indenture, the related Indenture Supplement(s) or in the Notes to the contrary notwithstanding. Such payments are subject to the allocation, deposits
and payment sections of this Base Indenture and of the related Indenture Supplement(s). 
 (b) At any time after such a declaration of
acceleration has been made or an automatic acceleration has occurred with respect to the Notes of any Series or Class and before a judgment or decree for payment of the money due has been obtained by the Indenture Trustee as hereafter provided
in this Article VIII, the Majority Noteholders of all Outstanding Notes, by written notice to the Issuer and the Indenture Trustee, may rescind and annul such declaration and its consequences if: 

(i) the Issuer has paid or deposited with the Indenture Trustee a sum sufficient

  
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to pay (A) all overdue installments of interest on such Notes, (B) the principal of such Notes which has become due otherwise than by such declaration of acceleration, and interest
thereon at the rate or rates prescribed therefor by the terms of such Notes, to the extent that payment of such interest is lawful, (C) interest upon overdue installments of interest at the rate or rates prescribed therefore by the terms of
such Notes to the extent that payment of such interest is lawful, and (D) all sums paid by the Indenture Trustee hereunder and the reasonable compensation, expenses and disbursements of the Indenture Trustee or the bank serving as Indenture
Trustee (in any of its capacities), their agents and counsel, all other amounts due under Section 4.5; and 

(ii) all Events of Default, other than the nonpayment of the principal of such Notes which has become due solely by such
acceleration, have been cured or waived as provided in Section 8.14. 
 No such rescission will affect any
subsequent default or impair any right consequent thereon. 
 Section 8.3. Collection of Indebtedness and Suits for Enforcement by Indenture
Trustee. 
 The Issuer covenants that if: 

(a) the Issuer defaults in the payment of interest on any Notes when such interest becomes due and payable, which default continues for a
period of two (2) Business Days following written notice from the Indenture Trustee of such default; or 
 (b) the Issuer defaults in
the payment of the principal of any Series or Class of Notes on the Stated Maturity Date thereof; then 
 the Issuer will, upon demand
of the Indenture Trustee, pay (subject to the allocation provided in Section 4.5(a)(2) hereof and any related Indenture Supplement) to the Indenture Trustee, for the benefit of the Noteholders of any such Notes, the whole
amount then due and payable on any such Notes for principal and interest, together with any Cumulative Interest Shortfall Amounts, unless otherwise specified in the applicable Indenture Supplement, and in addition thereto, will pay such further
amount as will be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses, disbursements and advances of the Indenture Trustee and the bank serving as Indenture Trustee (in any of its capacities),
their agents and counsel and all other amounts due under Section 4.5. 
 If the Issuer fails to pay such amounts
forthwith upon such demand, the Indenture Trustee may, in its own name and as trustee of an express trust, institute a judicial proceeding for the collection of the sums so due and unpaid, and may directly prosecute such proceeding to judgment or
final decree, and the Indenture Trustee may enforce the same against the Issuer or any other obligor upon the Notes and collect the money adjudged or decreed to be payable in the manner provided by law and this Base Indenture. 

  
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 Section 8.4. Indenture Trustee May File Proofs of Claim. 

In case of the pendency of any Insolvency Event or other similar proceeding or event relative to the Issuer or any other obligor upon the
Notes or the property of the Issuer or of such other obligor, the Indenture Trustee (irrespective of whether the principal of the Notes will then be due and payable as therein expressed or by declaration or otherwise) will be entitled and empowered
by intervention in such proceeding or otherwise: 
 (a) to file and prove a claim for the whole amount of principal and interest owing and
unpaid in respect of the Notes and to file such other papers or documents as may be necessary and advisable in order to have the claims of the Indenture Trustee (including any claim for the reasonable compensation, expenses, disbursements and
advances of the Indenture Trustee, its agents and counsel and all other amounts due under Section 4.5) and of the Noteholders allowed in such judicial proceeding; and 

(b) to collect and receive any funds or other property payable or deliverable on any such claims and to distribute the same; and any receiver,
assignee, trustee, liquidator or other similar official in any such proceeding is hereby authorized by each Noteholder to make such payment to the Indenture Trustee and the bank serving as Indenture Trustee (in all its capacities), and in the event
that the Indenture Trustee consents to the making of such payments directly to the Noteholders, to pay to the Indenture Trustee and the bank serving as Indenture Trustee (in all its capacities) any amount due to it for the reasonable compensation,
expenses, disbursements and advances of the Indenture Trustee and the bank serving as Indenture Trustee (in all its capacities), their agents and counsel, and any other amounts due the Indenture Trustee and the bank serving as Indenture Trustee (in
all its capacities) under Section 4.5. 
 Nothing herein contained will be deemed to authorize the Indenture
Trustee to authorize or consent to or accept or adopt on behalf of any Noteholder any plan of reorganization, arrangement, adjustment or composition affecting the Notes or the rights of any Noteholder thereof, or to authorize the Indenture Trustee
to vote in respect of the claim of any Noteholder in any such proceeding. 
 Section 8.5. Indenture Trustee May Enforce Claims Without Possession
of Notes. 
 All rights of action and claims under this Base Indenture or the Notes of any Series or Class are subject to the
Acknowledgment Agreement and the Fannie Mae Requirements and may be prosecuted and enforced by the Indenture Trustee, without the possession of any of the Notes of such Series or Class or the production thereof in any proceeding relating
thereto, and any such proceeding instituted by the Indenture Trustee, will be brought in its own name as trustee of an express trust, and any recovery of judgment will, after provision for the payment of the reasonable compensation, expenses,
disbursements and advances of the Indenture Trustee and its respective agents and counsel, be for the ratable benefit of the Noteholders of the Notes of such Series or Class in respect of which such judgment has been recovered. 

  
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 Section 8.6. Application of Money Collected. 

Any money or other property collected by the Indenture Trustee pursuant to this Article VIII will be applied in accordance with
Section 4.5(a)(2), at the Final Payment Date fixed by the Indenture Trustee and, in case of the payment of such money on account of principal, interest or fees, upon presentation of the Notes of the related Series or
Class and the notation thereon of the payment if only partially paid and upon surrender thereof if fully paid. 
 Section 8.7. Sale of
Collateral Requires Consent of Noteholders. 
 Subject to the Acknowledgment Agreement and the Fannie Mae Requirements, the Indenture
Trustee shall not sell Collateral or cause the Issuer to sell Collateral following any Event of Default, except with the written consent, or at the direction of, the Noteholders as set forth in Section 8.13;
provided, that the Indenture Trustee shall, subject to the consent of Fannie Mae, sell Collateral or cause the Issuer to sell Collateral without prior consent of any of the Noteholders if an Event of Default under clauses (b),
(c) or (q) of Section 8.1 occurs. Notwithstanding the foregoing, the consent of 100% of the Noteholders of the Outstanding Notes of each Series shall be required for any sale that does not generate sufficient
proceeds to pay the Note Balance of all such Notes plus all accrued and unpaid interest and other amounts owed in respect of such Notes and the Transaction Documents. If such direction has been given by the Noteholders of the requisite
percentage of all Outstanding Notes, the Indenture Trustee shall, subject to the Acknowledgment Agreement and the Fannie Mae Requirements and the terms of the Acknowledgment Agreement, cause the Issuer to sell Collateral pursuant to
Section 8.15, and shall provide notice of this to each Note Rating Agency of then Outstanding Notes. 
 Section 8.8.
Limitation on Suits. 
 No Noteholder will have any right to institute any proceeding, judicial or otherwise, with respect to this
Base Indenture or any Note, or for the appointment of a receiver or trustee or similar official, or for any other remedy hereunder, unless: 

(a) such Noteholder has previously given written notice to the Indenture Trustee of a continuing Event of Default with respect to Notes of
such Noteholder’s Notes’ Series or Class; 
 (b) the Noteholders of more than 50% of the Note Balance of the Outstanding Notes of
each Series, measured by Voting Interests, have made written request to the Indenture Trustee to institute proceedings in respect of such Event of Default in the name of the Indenture Trustee hereunder; 

(c) such Noteholder or Noteholders have offered to the Indenture Trustee indemnity reasonably satisfactory to it against the costs, expenses
and liabilities to be incurred in compliance with such request; and 
 (d) the Indenture Trustee, for sixty (60) days after the
Indenture Trustee has received such notice, request and offer of indemnity, has failed to institute any such proceeding; it being understood and intended that no one or more Noteholders of Notes of such Series or Class will have any right in
any manner whatsoever by virtue of, or by availing of, any provision of this Base Indenture or any Note to affect, disturb or prejudice the rights of any other Noteholders of Notes, or to obtain or to seek to obtain priority or preference over any
other such Noteholders or to enforce any right under this Base Indenture or any Note, except in the manner herein provided and for the equal and proportionate benefit of all the Noteholders of all Notes. 

  
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 The rights set out in this Section 8.8 are further subject to
Section 7.4(a). 
 Section 8.9. Limited Recourse. 

Notwithstanding any other terms of this Base Indenture, the Notes, any other Transaction Documents or otherwise, the obligations of the Issuer
under the Notes, this Base Indenture and each other Transaction Document to which it is a party are limited recourse obligations of the Issuer, payable solely from the Trust Estate, and following realization of the Trust Estate and application of
the proceeds thereof in accordance with the terms of this Base Indenture, none of the Noteholders, the Indenture Trustee or any of the other parties to the Transaction Documents shall be entitled to take any further steps to recover any sums due but
still unpaid hereunder or thereunder, all claims in respect of which shall be extinguished and shall not thereafter revive. Subject to the foregoing and to the terms of the applicable Indenture Supplement, each Noteholder will, however, have the
absolute and unconditional right to receive payment of all amounts due with respect to the Notes pursuant and respect to the terms of the Indenture, which right shall not be impaired without the consent of each Noteholder and to initiate suit for
the enforcement of any such payment, which right shall not be impaired without the consent of such Noteholder. No recourse shall be had for the payment of any amount owing in respect of the Notes or this Base Indenture or for any action or inaction
of the Issuer against any officer, director, employee, equity holder or organizer of the Issuer or any of their successors or assigns for any amounts payable under the Notes or this Base Indenture. It is understood that the foregoing provisions of
this Section 8.9 shall not (i) prevent recourse to the Trust Estate for the sums due or to become due under any security, instrument or agreement which is part of the Trust Estate, (ii) prevent recourse to the
Guarantor under the PC Repo Guaranty or under the PMH Repo Guaranty or (iii) save as specifically provided therein, constitute a waiver, release or discharge of any indebtedness or obligation evidenced by the Notes or secured by this Base
Indenture. It is further understood that the foregoing provisions of this Section 8.9 shall not limit the right of any Person, to name the Issuer as a party defendant in any proceeding or in the exercise of any other remedy
under the Notes or this Base Indenture, so long as no judgment in the nature of a deficiency judgment or seeking personal liability shall be asked for or (if obtained) enforced against any such Person or entity. 

Section 8.10. Restoration of Rights and Remedies. 

If the Indenture Trustee or any Noteholder has instituted any proceeding to enforce any right or remedy under this Base Indenture and such
proceeding has been discontinued or abandoned for any reason, then and in every such case the Issuer, the Indenture Trustee and the Noteholders will, subject to any determination in such proceeding, be restored severally and respectively to their
former positions hereunder, and thereafter all rights and remedies of the Indenture Trustee and the Noteholders will continue as though no such proceeding had been instituted. 

  
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 Section 8.11. Rights and Remedies Cumulative. 

No right or remedy herein conferred upon or reserved to the Indenture Trustee or to the Noteholders is intended to be exclusive of any other
right or remedy, and every right and remedy will, to the extent permitted by law, be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or
employment of any right or remedy hereunder, or otherwise, will not prevent the concurrent assertion or employment of any other appropriate right or remedy. 

Section 8.12. Delay or Omission Not Waiver. 

No delay or omission of the Indenture Trustee or of any Noteholder to exercise any right or remedy accruing upon any Event of Default will
impair any such right or remedy or constitute a waiver of any such Event of Default or acquiescence therein. Every right and remedy given by this Article or by law to the Indenture Trustee or to the Noteholders may be exercised from time to time,
and as often as may be deemed expedient, by the Indenture Trustee or by the Noteholders, as the case may be. 
 Section 8.13. Control by
Noteholders. 
 Either 100% of the VFN Noteholders or the Majority Noteholders of all Outstanding Notes will have the right to direct
the time, method and place of conducting any proceeding for any remedy available to the Indenture Trustee, or exercising any trust or power conferred on the Indenture Trustee with respect to such Notes; provided that: 

(a) the Indenture Trustee will have the right to decline to follow any such direction if the Indenture Trustee, being advised by counsel,
determines that the action so directed may violate applicable law or would conflict with this Base Indenture or if the Indenture Trustee in good faith determines that the proceedings so directed would have a substantial likelihood of involving it in
personal liability or be unjustly prejudicial to the Noteholders not taking part in such direction, unless the Indenture Trustee has received indemnity satisfactory to it from the Noteholders; 

(b) the Indenture Trustee may take any other action permitted hereunder deemed proper by the Indenture Trustee which is not inconsistent with
such direction; and 
 (c) to the extent there are conflicting directions between 100% of the VFN Noteholders and the Majority Noteholders,
the Indenture Trustee will take its direction from 100% of the VFN Noteholders (excluding any Retained Notes). 
 The rights of the
Noteholders set out in this Section 8.13 are further subject to Section 7.4(a). 
 Section 8.14. Waiver of Past
Defaults. 
 Together, the Majority Noteholders of all Outstanding Notes that are not Variable Funding Notes, the Majority
Noteholders for any Series of Variable Funding Notes Outstanding and the Administrative Agent may on behalf of the Noteholders of all such Notes waive any past default hereunder and its consequences, except a default not theretofore cured: 

  
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 (a) in the payment of the principal of or interest on any Note, or 

(b) in respect of a covenant or provision hereof which under Article XII cannot be modified or amended without the consent of the
Noteholder of each Outstanding Note. 
 Upon any such waiver, such default will cease to exist, and any Event of Default arising therefrom
will be deemed to have been cured, for every purpose of this Base Indenture; but no such waiver will extend to any subsequent or other default or impair any right consequent thereon. 

Section 8.15. Sale of Trust Estate. 

(a) The power to effect any Sale of any portion of the Trust Estate shall not be exhausted by any one or more Sales as to any portion of the
Trust Estate remaining unsold, but shall continue unimpaired until the entire Trust Estate shall have been sold or all amounts payable on the Notes and under this Base Indenture with respect thereto shall have been paid. The Indenture Trustee may
from time to time postpone any public Sale by public announcement made at the time and place of such Sale. 
 (b) Unless the Majority
Noteholders of all Outstanding Series have otherwise provided its written consent to the Indenture Trustee, at any public Sale of all or any portion of the Trust Estate at which a minimum bid equal to or greater than all amounts due to the Indenture
Trustee hereunder and the entire amount which would be payable to the Noteholders in full payment thereof in accordance with Section 8.6, on the Payment Date next succeeding the date of such sale, has not been received, the
Indenture Trustee shall prevent such sale by bidding an amount at least $1.00 more than the highest other bid in order to preserve the Trust Estate. 

(c) In connection with a Sale of all or any portion of the Trust Estate: 

(i) any of the Noteholders may bid for and purchase the property offered for Sale, and upon compliance with the terms of sale
may hold, retain and possess and dispose of such property, without further accountability; 
 (ii) the Indenture Trustee may
bid for and acquire the property offered for Sale in connection with any Sale thereof; 
 (iii) the Indenture Trustee shall
execute and deliver an appropriate instrument of conveyance transferring its interest in any portion of the Trust Estate in connection with a Sale thereof; 

(iv) the Indenture Trustee is hereby irrevocably appointed the agent and attorney-in-fact of the Issuer to transfer and convey its interest in any portion of the Trust Estate in connection with a Sale thereof, and to take all action necessary to effect such Sale; and 

(v) no purchaser or transferee at such a Sale shall be bound to ascertain the Indenture Trustee’s authority, inquire into
the satisfaction of any conditions precedent or see to the application of any monies. 

  
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 (d) Notwithstanding anything to the contrary in this Base Indenture, and subject to the
Acknowledgment Agreement and the Fannie Mae Requirements, if an Event of Default has occurred and is continuing and the Notes have become due and payable or have been declared due and payable and such declaration and its consequences have not been
rescinded and annulled, any proceeds received by the Indenture Trustee with respect to a foreclosure, sale or other realization resulting from a transfer of the assets of the Trust Estate shall be allocated in accordance with
Section 4.5(a)(2) hereof. The amount, if any, so allocated to the Issuer shall be paid by the Indenture Trustee to or to the order of the Issuer free and clear of the Adverse Claim of this Base Indenture and the Noteholders
shall have no claim or rights to the amount so allocated. 
 Section 8.16. Undertaking for Costs. 

All parties to this Base Indenture agree, and each Noteholder by its acceptance thereof will be deemed to have agreed, that any court may in
its discretion require, in any suit for the enforcement of any right or remedy under this Base Indenture, or in any suit against the Indenture Trustee for any action taken or omitted by it as Indenture Trustee, the filing by any party litigant in
such suit of an undertaking to pay the costs of such suit, and that such court may in its discretion assess reasonable costs, including reasonable attorneys’ fees and expenses, against any party litigant in such suit, having due regard to the
merits and good faith of the claims or defenses made by such party litigant; but the provisions of this Section will not apply to any suit instituted by the Indenture Trustee, to any suit instituted by any Noteholder or group of Noteholders holding
in the aggregate more than 25% of the Note Balance of the Outstanding Notes of each Series (measured by Voting Interests) to which the suit relates, or to any suit instituted by any Noteholders for the enforcement of the payment of the principal of
or interest on any Note on or after the applicable Stated Maturity Date expressed in such Note. 
 Section 8.17. Waiver of Stay or Extension
Laws. 
 The Issuer covenants (to the extent that it may lawfully do so) that it will not at any time insist upon, or plead, or in
any manner whatsoever claim or take the benefit or advantage of, any stay or extension law wherever enacted, now or at any time hereafter in force, which may affect the covenants or the performance of this Base Indenture; and the Issuer (to the
extent that it may lawfully do so) hereby expressly waives all benefit or advantage of any such law, and covenants that it will not hinder, delay or impede the execution of any power herein granted to the Indenture Trustee, but will suffer and
permit the execution of every such power as though no such law had been enacted. 
 Section 8.18. Notice of Waivers. 

Promptly (and in no event later than two (2) Business Days following the occurrence thereof), after any waiver of an Event of Default
pursuant to Section 4.12, or any rescission or annulment of a declaration of acceleration pursuant to Section 8.2(b), or any waiver of past default pursuant to
Section 8.14, the Issuer will notify all related Note Rating Agencies and the Disposition Manager in writing. 

  
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 Article IX 

The Issuer 
 Section 9.1.
Representations and Warranties of Issuer. 
 The Issuer hereby makes the following representations and warranties for the benefit
of the Servicer, the Indenture Trustee, the Disposition Manager and the Noteholders. The representations shall be made as of the execution and delivery of this Base Indenture and of each Indenture Supplement, and as of each Funding Date and as of
each date of Grant and shall survive the Grant of a Security Interest in the Participation Certificates to the Indenture Trustee. 
 (a)
Organization and Good Standing. The Issuer is duly organized and validly existing as a statutory trust and is in good standing under the laws of the State of Delaware, with power and authority to own its properties and to conduct its business
as such properties are currently owned and such business is presently conducted. The Issuer has appointed the Administrator as the Issuer’s agent where notices and demands to or upon the Issuer in respect of the Notes of this Base Indenture may
be served. 
 (b) Power and Authority. The Issuer has and will continue to have the power and authority to execute and deliver this
Base Indenture and the other Transaction Documents to which it is or will be a party, and to carry out their respective terms; the Issuer had and has had at all relevant times and now has full power, authority and legal right to acquire, own, hold
and Grant a Security Interest in the Trust Estate and has duly authorized such Grant to the Indenture Trustee by all necessary action; and the execution, delivery and performance by the Issuer of this Base Indenture and each of the other Transaction
Documents to which it is a party has been duly authorized by all necessary action of the Issuer. 
 (c) Valid Transfers; Binding
Obligations. This Base Indenture creates a valid Grant of a Security Interest in the Participation Certificates which has been validly perfected and is a first priority Security Interest under the UCC, and in such other portion of the Collateral
as to which a Security Interest may be granted under the UCC, which security interest is enforceable against creditors of and purchasers from the Issuer, subject to applicable law. Each of the Transaction Documents to which the Issuer is a party
constitutes a legal, valid and binding obligation of the Issuer enforceable in accordance with its terms, except as enforceability may be limited by bankruptcy, insolvency, reorganization or other similar laws affecting creditors’ rights
generally or by general equity principles. 
 (d) No Violation. The execution and delivery by the Issuer of this Base Indenture and
each other Transaction Document to which it is a party and the consummation of the transactions contemplated by this Base Indenture and the other Transaction Documents and the fulfillment of the terms of this Base Indenture and the other Transaction
Documents do not conflict with, result in any breach of any of the terms or provisions of, or constitute (with or without notice or lapse of time or both) a default under the Organizational Documents of the Issuer or any indenture,

  
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agreement or other material instrument to which the Issuer is a party or by which it is bound, or result in the creation or imposition of any Adverse Claim upon any of its properties pursuant to
the terms of any such indenture, agreement or other instrument (other than this Base Indenture), or violate any law, order, judgment, decree, writ, injunction, award, determination, rule or regulation applicable to the Issuer of any court or of any
federal or state regulatory body, administrative agency or other governmental instrumentality having jurisdiction over the Issuer or its properties, which breach, default, conflict, Adverse Claim or violation could reasonably be expected to have a
material Adverse Effect. 
 (e) No Proceedings. There is no action, suit or proceeding before or by any court or governmental agency
or body, domestic or foreign, now pending, or to the Issuer’s knowledge, threatened, against or affecting the Issuer: (i) asserting the invalidity of this Base Indenture, the Notes or any of the other Transaction Documents to which the
Issuer is a party, (ii) seeking to prevent the issuance of the Notes or the consummation of any of the transactions contemplated by this Base Indenture, or any of the other Transaction Documents, (iii) seeking any determination or ruling
which could reasonably be expected to have a material Adverse Effect or could reasonably be expected to materially and adversely affect the condition (financial or otherwise), business or operations of the Issuer, or (iv) relating to the Issuer
and which could reasonably be expected to adversely affect the United States federal income tax attributes of the Notes. 
 (f) No
Subsidiaries. The Issuer has no subsidiaries. 
 (g) All Tax Returns True, Correct and Timely Filed. All tax returns required to
be filed by the Issuer in any jurisdiction have in fact been filed and all taxes, assessments, fees and other governmental charges upon the Issuer or upon any of its properties, and all income of franchises, shown to be due and payable on such
returns have been paid except for any such taxes, assessments, fees and charges the amount, applicability or validity of which is currently being contested in good faith by appropriate proceedings and with respect to which the Issuer had established
adequate reserves in accordance with GAAP. All such tax returns were true and correct in all material respects and the Issuer knows of no proposed additional tax assessment against it that could reasonably be expected to have a material adverse
effect upon the ability of the Issuer to perform its obligations hereunder nor of any basis therefor. The provisions for taxes on the books of the Issuer are in accordance with GAAP. 

(h) No Restriction on Issuer Affecting its Business. The Issuer is not a party to any contract or agreement, or subject to any charter
or other restriction, which materially and adversely affects its business, and the Issuer has not agreed or consented to cause any of its assets or properties to become subject to any Adverse Claim other than the Security Interest or any Permitted
Liens. 
 (i) Title to Participation Certificates. As represented by PMC in the PC Repurchase Agreement, immediately prior to the
Grant thereof to the Indenture Trustee as contemplated by this Base Indenture, subject to the Acknowledgment Agreement and the Fannie Mae Requirements with respect thereto, the Issuer had good and marketable title to each Participation Certificate,
free and clear of all Adverse Claims other than any Permitted Liens and rights of others. 

  
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 (j) Perfection of Security Interest. All filings and recordings that are necessary to
perfect the interest of the Issuer in the Participation Certificates and such other portion of the Trust Estate as to which a sale or security interest may be perfected by filing under the UCC, have been accomplished and are in full force and
effect. All filings and recordings against the Issuer required to perfect the Security Interest of the Indenture Trustee in such Participation Certificates and such other portion of the Trust Estate as to which a Security Interest may be perfected
by filing under the UCC, have been accomplished and are in full force and effect, and all such filings and recordings against the Issuer include the legends set forth as clauses (i) through (iii) of the fourth full paragraph of
the Granting Clause. Subject to the rights of Fannie Mae with respect thereto, other than the Security Interest granted to the Indenture Trustee pursuant to this Base Indenture, the Issuer has not pledged, assigned, sold, granted a Security
Interest in, or otherwise conveyed any of the Participation Certificates or any other Collateral. The Issuer has not authorized the filing of and is not aware of any financing statement filed against the Issuer that includes a description of
collateral covering the Participation Certificates other than (1) any financing statement related to the Security Interest granted to the Indenture Trustee hereunder or (2) that has been terminated. 

(k) Notes Authorized, Executed, Authenticated, Validly Issued and Outstanding. The Notes have been duly and validly authorized and,
when duly and validly executed and authenticated by the Indenture Trustee in accordance with the terms of this Base Indenture and delivered to and paid for by each purchaser as provided herein, will be validly issued and outstanding and entitled to
the benefits hereof. 
 (l) Location of Chief Executive Office and Records. The chief executive office of the Issuer and the office
where Issuer maintains copies of its corporate records, is located at the offices of the Administrator at 3043 Townsgate Road, Suite 300, Westlake Village, CA, 91361; provided that, at any time after the Closing Date, upon thirty
(30) days’ prior written notice to the Indenture Trustee and the Noteholders, the Issuer may relocate its jurisdiction of formation, and/or its principal place of business and chief executive office, and/or the office where it maintains
all of its records, to another location or jurisdiction, as the case may be, within the United States to the extent that the Issuer shall have taken all actions necessary or reasonably requested by the Indenture Trustee or the Majority Noteholders
of all Outstanding Notes to amend its existing financing statements and continuation statements, and file additional financing statements and to take any other steps reasonably requested by the Indenture Trustee or the Majority Noteholders of all
Outstanding Notes to further perfect or evidence the rights, claims or security interests of the Indenture Trustee and the Noteholders under any of the Transaction Documents. 

(m) Solvency. The Issuer: (i) is not “insolvent” (as such term is defined in § 101(32)(A) of the Bankruptcy Code);
(ii) is able to pay its debts as they become due; and (iii) does not have unreasonably small capital for the business in which it is engaged or for any business or transaction in which it is about to engage. The Issuer is not Granting the Trust
Estate to the Indenture Trustee with the intent to defraud, delay or hinder any of its creditors. 
 (n) Separate Identity. The
Issuer is operated as an entity separate from the Servicer and the Administrator. The Issuer has complied with all covenants set forth in its Organizational Documents. 

  
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 (o) Name. The legal name of the Issuer is as set forth in this Base Indenture and the
Issuer does not use and has not used any other trade names, fictitious names, assumed names or “doing business as” names. 
 (p)
Governmental Authorization. Other than the filing of the financing statements (or financing statement amendments) required hereunder or under any other Transaction Document, no authorization or approval or other action by, and no notice to or
filing with, any governmental authority or regulatory body is required for (i) the due execution and delivery by Issuer of this Base Indenture and each other Transaction Document to which it is a party and (ii) the performance of its
obligations hereunder and thereunder. 
 (q) Accuracy of Information. All information heretofore furnished by the Issuer or any of
its Affiliates to the Indenture Trustee or the Noteholders for purposes of or in connection with this Base Indenture, any of the other Transaction Documents or any transaction contemplated hereby or thereby is, and all such information hereafter
furnished by the Issuer or any of its Affiliates to the Indenture Trustee or the Noteholders will be, true and accurate in every material respect on the date such information is stated or certified. 

(r) Use of Proceeds. No proceeds of any issuance of Notes or funding under a VFN hereunder will be used for a purpose that violates, or
would be inconsistent with, Regulation T, U or X promulgated by the Board of Governors of the Federal Reserve System from time to time. 

(s) Investment Company. The Issuer is not required to be registered as an “investment company” within the meaning of the
Investment Company Act, or any successor statute. 
 (t) Compliance with Law. The Issuer has complied in all material respects with
all applicable laws, rules, regulations, orders, writs, judgments, injunctions, decrees or awards to which it may be subject. 
 (u)
Investments. The Issuer does not own or hold, directly or indirectly (i) any capital stock or equity security of, or any equity interest in, any Person or (ii) any debt security or other evidence of indebtedness of any Person. 

(v) Transaction Documents. The PC Repurchase Agreement is the only agreement pursuant to which the Issuer directly or indirectly
purchases and receives contributions of Participation Certificates from PMC and the PC Repurchase Agreement represents the only agreement between PMC and the Issuer relating to the transfer of the Participation Certificates from PMC to the Issuer.

 (w) Limited Business. Since its formation, the Issuer has conducted no business other than entering into and performing its
obligations under the Transaction Documents to which it is a party, and such other activities as are incidental to the foregoing. The Transaction Documents to which it is a party, and any agreements entered into in connection with the transactions
that are permitted thereby, are the only agreements to which the Issuer is a party. 

  
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 Section 9.2. Liability of Issuer; Indemnities. 

(a) Obligations. The Issuer shall be liable in accordance with this Base Indenture only to the extent of the obligations in this Base
Indenture specifically undertaken by the Issuer in such capacity under this Base Indenture and shall have no other obligations or liabilities hereunder. The Issuer shall indemnify, defend and hold harmless the Indenture Trustee (in all its
capacities), the Calculation Agent, the Paying Agent, the Securities Intermediary, the Note Registrar, the Disposition Manager, the Noteholders (as applicable, with respect to the related Series of Notes) and the Trust Estate (each an
“Issuer Indemnified Party”) from and against any taxes that may at any time be asserted against the Indenture Trustee, the Calculation Agent, the Paying Agent, the Securities Intermediary, the Note Registrar, the Disposition
Manager or the Trust Estate with respect to the transactions contemplated in this Base Indenture or any of the other Transaction Documents, including any sales, gross receipts, general corporation, tangible or intangible personal property, privilege
or license taxes (but not including any taxes asserted with respect to, and as of the date of, the transfer of the Participation Certificates to the Trust Estate, the issuance and original sale of the Notes of any Class, or asserted with respect to
ownership of the Participation Certificates, or federal, state or local income or franchise taxes or any other tax, or other income taxes arising out of payments on the Notes of any Class, or any interest or penalties with respect thereto or arising
from a failure to comply therewith) and costs and expenses in defending against the same and in connection with the Issuer Indemnified Parties’ enforcement of any rights hereunder or under any Transaction Document, except that in no event shall
the Issuer be required to indemnify any Issuer Indemnified Party if the indemnification obligation under this Section 9.2(a) to such Issuer Indemnified Party is the result of a violation of law, gross negligence or willful
misconduct by such Issuer Indemnified Party. 
 (b) Notification and Defense. Promptly after any Issuer Indemnified Party shall have
been served with the summons or other first legal process or shall have received written notice of the threat of a claim in respect of which a claim for indemnity may be made against the Issuer under this Section 9.2, the
Issuer Indemnified Party shall notify the Issuer and the Administrator in writing of the service of such summons, other legal process or written notice, giving information therein as to the nature and basis of the claim, but failure so to notify the
Issuer shall not relieve the Issuer from any liability which it may have hereunder or otherwise, except to the extent that the Issuer is prejudiced by such failure so to notify the Issuer. The Issuer will be entitled, at its own expense, to
participate in the defense of any such claim or action and, to the extent that it may wish, to assume the defense thereof, with counsel reasonably satisfactory to such Issuer Indemnified Party, and, after notice from the Issuer to such Issuer
Indemnified Party that the Issuer wishes to assume the defense of any such action, the Issuer will not be liable to such Issuer Indemnified Party under this Section 9.2 for any legal or other expenses subsequently incurred
by such Issuer Indemnified Party in connection with the defense of any such action unless (i) the defendants in any such action include both the Issuer Indemnified Party and the Issuer, and the Issuer Indemnified Party (upon the advice of
counsel) shall have reasonably concluded that there may be legal defenses available to it that are different from or additional to those available to the Issuer, or one or more Issuer Indemnified Parties, and which in the reasonable judgment of such
counsel are sufficient to create a conflict of interest for the same counsel to represent both the Issuer and such Issuer Indemnified Party, (ii) the Issuer shall not have employed counsel reasonably satisfactory to the Issuer Indemnified Party
to represent the Issuer Indemnified Party within a 

  
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reasonable time after notice of commencement of the action, or (iii) the Issuer has authorized the employment of counsel for the Issuer Indemnified Party at the expense of the Issuer; then,
in any such event, such Issuer Indemnified Party shall have the right to employ its own counsel in such action, and the reasonable fees and expenses of such counsel shall be borne by the Issuer; provided, however, that the Issuer shall
not in connection with any such action or separate but substantially similar or related actions arising out of the same general allegations or circumstances, be liable for any fees and expenses of more than one firm of attorneys at any time for all
Issuer Indemnified Parties. Each Issuer Indemnified Party, as a condition of the indemnity agreement contained herein, shall use its commercially reasonable efforts to cooperate with the Issuer in the defense of any such action or claim. The Issuer
shall not, without the prior written consent of any Issuer Indemnified Party, effect any settlement of any pending or threatened proceeding in respect of which such Issuer Indemnified Party is or could have been a party and indemnity could have been
sought hereunder by such Issuer Indemnified Party, unless such settlement includes an unconditional release of such Issuer Indemnified Party from all liability on claims that are the subject matter of such proceeding or threatened proceeding. 

(c) Expenses. Indemnification under this Section shall include, without limitation, reasonable and customary out-of-pocket fees and expenses of counsel and expenses of litigation. If the Issuer has made any indemnity payments pursuant to this Section and the recipient thereafter
collects any of such amounts from others, the recipient shall promptly repay such amounts collected to the Issuer, without interest. 
 (d)
Survival. The provisions of this Section 9.2 shall survive the termination of this Base Indenture. 
 Section 9.3.
Merger or Consolidation, or Assumption of the Obligations, of the Issuer. 
 Any Person (a) into which the Issuer may be
merged or consolidated, (b) which may result from any merger, conversion or consolidation to which the Issuer shall be a party, or (c) which may succeed to all or substantially all of the business or assets of the Issuer, which Person in
any of the foregoing cases executes an agreement of assumption to perform every obligation of the Issuer under this Base Indenture, shall be the successor to the Issuer under this Base Indenture without the execution or filing of any document or any
further act on the part of any of the parties to this Base Indenture, except that if the Issuer in any of the foregoing cases is not the surviving entity, then the surviving entity shall execute an agreement of assumption to perform every obligation
of the Issuer under the Transaction Documents, and the surviving entity shall have taken all actions necessary or reasonably requested by the Issuer, the Majority Noteholders of all Outstanding Notes or the Indenture Trustee to amend its existing
financing statements and continuation statements, and file additional financing statements and to take any other steps reasonably requested by the Issuer, the Majority Noteholders of all Outstanding Notes or the Indenture Trustee to further perfect
or evidence the rights, claims or security interests of the Issuer, the Noteholders or the Indenture Trustee under any of the Transaction Documents. The Issuer (i) shall provide notice of any merger, consolidation or succession pursuant to this
Section 9.3 to each Note Rating Agency that has rated any then-Outstanding Notes, the Indenture Trustee and the Noteholders, (ii) for so long as the Notes are Outstanding, (1) shall receive from each Note Rating
Agency rating Outstanding Notes a letter to the effect that such merger, consolidation or succession 

  
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will not result in a qualification, downgrading or withdrawal of the then current ratings assigned by such Note Rating Agency to any Outstanding Notes or (2) if the Administrator and the
Administrative Agents determine in their reasonable judgment that an applicable Note Rating Agency no longer provides such letters as described in the foregoing clause (1), (a) the Administrator shall provide notice of such new merger,
consolidation or succession to the related Note Rating Agency and (b) each Administrative Agent shall have provided its prior written consent to such merger, consolidation or succession; provided, that the Issuer provides an Issuer
Certificate to the effect that any such merger, consolidation or succession will not have a material Adverse Effect on the Outstanding Notes, (iii) shall obtain an Opinion of Counsel addressed to the Indenture Trustee and reasonably
satisfactory to the Indenture Trustee, that such merger, consolidation or succession complies with the terms hereof and one or more Opinions of Counsel updating or restating all opinions delivered on the date of this Base Indenture with respect to
corporate matters, enforceability of Transaction Documents against the Issuer, and the grant by the Issuer of a valid security interest in the Participation Certificates to the Indenture Trustee and the perfection of such security interest and
related matters, (iv) shall receive from the Majority Noteholders of all Outstanding Notes their prior written consent to such merger, consolidation or succession, absent which consent, which may not be unreasonably withheld or delayed, the
Issuer shall not become a party to such merger, consolidation or succession and (v) shall obtain an Issuer Tax Opinion. 
 Section 9.4.
Issuer May Not Own Notes. 
 The Issuer may not become the owner or pledgee of one or more of the Notes (other than any Retained
Note). Any Person Controlling, Controlled by or under common Control with the Issuer may, in its individual or any other capacity, become the owner or pledgee of one or more Notes with the same rights as it would have if it were not an Affiliate of
the Issuer, except as otherwise specifically provided in the definition of the term “Noteholder.” The Notes so owned by or pledged to such Controlling, Controlled or commonly Controlled Person shall have an equal and proportionate benefit
under the provisions of this Base Indenture, without preference, priority or distinction as among any of the Notes, except as set forth herein with respect to, among other things, rights to vote, consent or give directions to the Indenture Trustee
as a Noteholder. 
 Section 9.5. Covenants of Issuer. 

(a) Organizational Documents; Unanimous Consent. The Issuer hereby covenants that its Organizational Documents provide that they may not
be amended or modified without (i) notice to the Indenture Trustee and each Note Rating Agency that is at that time rating any Outstanding Notes, and (ii) the prior written consent of the Administrative Agent, unless and until this Base
Indenture shall have been satisfied, discharged and terminated. The Issuer will at all times comply with the terms of its Organizational Documents. In addition, notwithstanding any other provision of this Section 9.5 and
any provision of law, the Issuer shall not take any action described in Section 4.1 of the Issuer’s Organizational Documents or do any of the following unless the Owners (as such term is defined in the Issuer’s
Organizational Documents), the Administrative Agent and the applicable Majority Noteholders as set forth in the Transaction Documents consent to such action: (A) dissolve or liquidate, in whole or in part, or institute proceedings to be
adjudicated bankrupt or insolvent, (B) consent to the institution of bankruptcy 

  
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or insolvency proceedings against it, (C) file a petition seeking, or consent to, reorganization or relief under any applicable federal, state or foreign law relating to bankruptcy or
similar matters, (D) consent to the appointment of a receiver, liquidator, assignee, trustee, sequestrator (or other similar official) of the Issuer or a substantial part of its property, (E) make any assignment for the benefit of creditors,
(F) admit in writing its inability to pay its debts generally as they become due, or (G) take any action in furtherance of the actions set forth in clauses (A) through (F) above; or (1) merge or consolidate with or into
any other person or entity or sell or lease its property or all or substantially all of its assets to any person or entity; or (2) modify any provision of its Organizational Documents. 

(b) Preservation of Existence. The Issuer hereby covenants to do or cause to be done all things necessary on its part to preserve and
keep in full force and effect its rights and franchises as a statutory trust under the laws of the State of Delaware, and to maintain each of its licenses, approvals, permits, registrations or qualifications in all jurisdictions in which its
ownership or lease of property or the conduct of its business requires such licenses, approvals, registrations or qualifications, except for failures to maintain any such licenses, approvals, registrations or qualifications which, individually or in
the aggregate, would not have a material Adverse Effect. 
 (c) Compliance with Laws. The Issuer hereby covenants to comply in all
material respects with all applicable laws, rules and regulations and orders of any governmental authority, the noncompliance with which would have a material Adverse Effect or a material adverse effect on the business, financial condition or
results of operations of the Issuer. 
 (d) Payment of Taxes. The Issuer hereby covenants to pay and discharge promptly or cause to
be paid and discharged promptly all taxes, assessments and governmental charges or levies imposed upon the Issuer or upon its income and profits, or upon any of its property or any part thereof, before the same shall become in default,
provided that the Issuer shall not be required to pay and discharge any such tax, assessment, charge or levy so long as the validity or amount thereof shall be contested in good faith by appropriate proceedings and the Issuer shall have set
aside on its books adequate reserves with respect to any such tax, assessment, charge or levy so contested. 
 (e) Investments. The
Issuer hereby covenants that it will not, without the prior written consent of the Majority Noteholders of all Outstanding Notes, acquire or hold any indebtedness for borrowed money of another person, or any capital stock, debentures, partnership
interests or other ownership interests or other securities of any Person, other than Permitted Investments as provided hereunder and the Participation Certificates acquired under the PC Repurchase Agreement. 

(f) Keeping Records and Books of Account. The Issuer hereby covenants and agrees to maintain and implement administrative and operating
procedures (including an ability to recreate records evidencing the Participation Certificates in the event of the destruction or loss of the originals thereof) and keep and maintain, all documents, books, records and other information reasonably
necessary or advisable for the collection of all Participation Certificates (including records adequate to permit the daily identification of all collections with respect to, and adjustments of amounts payable under, each Participation Certificate).
The Administrator shall ensure compliance with this Section 9.5(f). 

  
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 (g) Employee Benefit Plans. The Issuer hereby covenants and agrees to comply in all
material respects with the provisions of ERISA, the Code, and all other applicable laws, and the regulations and interpretations thereunder to the extent applicable, with respect to each “employee benefit plan” as defined in section 3(3)
of ERISA. 
 (h) No Release. The Issuer shall not take any action and shall use its best efforts not to permit any action to be taken
by others that would release any Person from any of such Person’s covenants or obligations under any Transaction Document, Fannie Mae Lender Contract or other document, instrument or agreement included in the Trust Estate, or which would result
in the amendment, hypothecation, subordination, termination or discharge of, or impair the validity or effectiveness of, any such document, instrument or agreement. 

(i) Separate Identity. The Issuer acknowledges that the Secured Parties are entering into the transactions contemplated by this Base
Indenture in reliance upon the Issuer’s identity as a legal entity that is separate from the Administrator or the Servicer (each, a “Facility Entity”). Therefore, from and after the date of execution and delivery of this
Base Indenture, the Issuer shall take all reasonable steps to maintain the Issuer’s identity as a separate legal entity and to make it manifest to third parties that the Issuer is an entity with assets and liabilities distinct from those of
each Facility Entity and not a division of a Facility Entity. 
 (j) Compliance with and Enforcement of Transaction Documents. The
Issuer hereby covenants and agrees to comply in all respects with the terms of, employ the procedures outlined in and enforce the obligations of the parties to all of the Transaction Documents to which the Issuer is a party, and take all such action
to such end as may be from time to time reasonably requested by the Indenture Trustee, and/or the Majority Noteholders of all Outstanding Notes, maintain all such Transaction Documents in full force and effect and make to the parties thereto such
reasonable demands and requests for information and reports or for action as the Issuer is entitled to make thereunder and as may be from time to time reasonably requested by the Indenture Trustee. 

(k) No Sales, Liens, etc. Against Participation Certificates and Trust Property. The Issuer hereby covenants and agrees, except for
releases specifically permitted hereunder, not to sell, assign (by operation of law or otherwise) or otherwise dispose of, or create or suffer to exist, any Adverse Claim (other than the Security Interest created hereby or any Permitted Liens) upon
or with respect to, any Participation Certificate or Trust Property, or any interest in either thereof, or upon or with respect to any Trust Account, or assign any right to receive income in respect thereof. The Issuer shall promptly, but in no
event later than two (2) Business Days after a Responsible Officer has obtained actual knowledge thereof, notify the Indenture Trustee of the existence of any Adverse Claim on any Participation Certificate or Trust Estate, and the Issuer shall
defend the right, title and interest of each of the Issuer and the Indenture Trustee in, to and under the Participation Certificates and Trust Estate, against all claims of third parties. 

(l) No Change in Business. The Issuer covenants that it shall not make any change in the character of its business. 

  
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 (m) No Change in Name, etc.; Preservation of Security Interests. The Issuer covenants
that it shall not make any change to its company name, or use any trade names, fictitious names, assumed names or “doing business as” names. The Issuer will from time to time, at its own expense, execute and file such additional financing
statements (including continuation statements) as may be necessary to ensure that at any time, the interest of the Issuer in all of the Participation Certificates and such other portion of the Trust Estate as to which a sale or Security Interest may
be perfected by filing under the UCC, and the Security Interest of the Indenture Trustee in all of the Participation Certificates and such other portion of the Trust Estate as to which a Security Interest may be perfected by filing under the UCC,
are fully protected. 
 (n) No Institution of Insolvency Proceedings. The Issuer covenants that it shall not institute Insolvency
Proceedings with respect to the Issuer or any Affiliate thereof or consent to the institution of Insolvency Proceedings against the Issuer or any Affiliate thereof or take any action in furtherance of any such action, or seek dissolution or
liquidation in whole or in part of the Issuer or any Affiliate thereof. 
 (o) Money for Note Payments To Be Held in Trust. The
Issuer shall cause each Paying Agent other than the Indenture Trustee to execute and deliver to the Indenture Trustee an instrument in which such Paying Agent shall agree with the Indenture Trustee, subject to the provisions of this Section, that
such Paying Agent shall: 
 (i) hold all sums held by it in respect of payments on Notes in trust for the benefit of the
Noteholders entitled thereto until such sums shall be paid to such Persons or otherwise disposed of as herein provided; 

(ii) give the Indenture Trustee notice of any default by the Issuer (or any other obligor upon the Notes) in the making of any
payment; and 
 (iii) at any time during the continuance of any such default, upon the written request of the Indenture
Trustee, forthwith pay to the Indenture Trustee all sums so held in trust by such Paying Agent. 
 The Issuer may at any time, for the purpose of obtaining
the satisfaction and discharge of this Base Indenture or for any other purpose, pay, or direct any Paying Agent to pay, to the Indenture Trustee all sums held in trust by such Paying Agent, such sums to be held by the Indenture Trustee upon the same
trusts as those upon which such sums were held by such Paying Agent; and, upon such payment by any Paying Agent to the Indenture Trustee, such Paying Agent shall be released from all further liability with respect to such money. 

(p) Protection of Trust Estate. The Issuer shall from time to time execute and deliver to the Indenture Trustee and the Administrative
Agent all such supplements and amendments hereto (a copy of which shall be provided to the Noteholders) and all such financing statements, continuation statements, instruments of further assurance and other instruments, and shall take such other
action as is necessary or advisable to: 
 (i) Grant more effectively all or any portion of the Trust Estate; 

  
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 (ii) maintain or preserve the Security Interest or carry out more
effectively the purposes hereof; 
 (iii) perfect, publish notice of, or protect the validity of any Grant made or to be made
by this Base Indenture; 
 (iv) enforce any of the Participation Certificates or, where appropriate, any Security Interest in
the Trust Estate and the proceeds thereof; 
 (v) promptly to amend, or to cause to be amended, as necessary, any filings or
recordings against the Issuer relating to the Grant necessary to conform to the requirements of Fannie Mae, including any legend required by Fannie Mae to be included in such filings or recordings; or 

(vi) preserve and defend title to the Trust Estate and the rights of the Indenture Trustee and the Noteholders therein against
the claims of all persons and parties. 
 (q) Investment Company Act. The Issuer shall conduct its operations in a manner which shall
not subject it to registration as an “investment company” under the Investment Company Act. 
 (r) Payment of Review and
Renewal Fees. The Issuer shall pay or cause to be paid to each Note Rating Agency that has rated Outstanding Notes, the annual rating review and renewal fee in respect of such Notes, if any. 

(s) No Subsidiaries. The Issuer shall not form or hold interests in any subsidiaries. 

(t) No Indebtedness. The Issuer shall not incur any indebtedness other than the Notes, and shall not guarantee any other Person’s
indebtedness or incur any capital expenditures. 
 (u) Cooperation with Effectuating a Release. If any filing or recordings against
the Issuer have been made relating to the Grant, within five (5) Business Days after the earliest of any of the following dates or events that occur: (i) the effective date of any transfer of Issuer responsibility pursuant to the
Acknowledgment Agreement; (ii) the date on which the Secured Party receives notice from Fannie Mae of any termination of Secured Party’s or Servicer’s rights under the Acknowledgment Agreement, or otherwise; or (iii) the date on
which Secured Party receives notice of the termination by Fannie Mae of Servicer’s redemption, equitable, legal or other right, title or interest in the Subject Mortgages, then the Issuer shall, or shall cause to be filed for recording, in the
appropriate recording office, a fully and complete release of such security interest, and of any other right, title or interest of Secured Party in the Subject Mortgages, and shall deliver to Fannie Mae written confirmation of such filing.
Notwithstanding the foregoing, if the Issuer believes the Secured Party’s Security Interest is being challenged or is likely to be challenged by anyone other than Fannie Mae, then the Issuer may request that Fannie Mae agree to a deferral of
the filings required by this subsection, which deferral shall be granted at the sole discretion of Fannie Mae. 

  
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 (v) Issuer Tax Opinion. No undertaking that would cause a Retained Note to become
issued and outstanding for United States federal income tax purposes will be permitted without the delivery of an Issuer Tax Opinion. 
 (w)
Delivery of the Asset File. The Issuer shall deliver the items set forth in Section 2.2(a) to the Indenture Trustee within two (2) Business Days of the execution and delivery of this Base Indenture. 

Article X 
 The
Administrator and Servicer 
 Section 10.1. Representations and Warranties of PMC, as Administrator and as Servicer. 

PMC, as Administrator and as Servicer, hereby makes the following representations and warranties for the benefit of the Indenture Trustee, as
of the Closing Date, and as of the date of each Grant of Participation Certificates to the Indenture Trustee pursuant to this Base Indenture. 

(a) Organization and Good Standing. PMC is a corporation, duly incorporated, validly existing and in good standing under the laws of
the State of Delaware. PMC, as Servicer, is duly qualified to do business and is in good standing (or is exempt from such requirements) and has obtained all necessary licenses and approvals in each jurisdiction in which the failure so to qualify, or
to obtain such licenses or approvals, would have a material Adverse Effect. 
 (b) Power and Authority; Binding Obligation. PMC has
the power and authority to make, execute, deliver and perform its obligations under this Base Indenture and any related Indenture Supplement and each other Transaction Document to which it is a party and all of the transactions contemplated
hereunder and thereunder, and has taken all necessary corporate action to authorize the execution, delivery and performance of this Base Indenture and each Indenture Supplement and each other Transaction Document to which it is a party; this Base
Indenture and each Indenture Supplement and each other Transaction Document to which it is a party constitutes a legal, valid and binding obligation of PMC, enforceable against PMC in accordance with its terms, except as enforceability may be
limited by applicable bankruptcy, insolvency, reorganization, moratorium or other similar laws now or hereafter in effect affecting the enforcement of creditors’ rights in general and except as such enforceability may be limited by general
principles of equity (whether considered in a proceeding at law or in equity) or by public policy with respect to indemnification under applicable securities laws. 

(c) No Violation. The execution and delivery of this Base Indenture and each Indenture Supplement and each other Transaction Document
to which it is a party by PMC and its performance of its obligations under this Base Indenture and each Indenture Supplement and each other Transaction Document to which it is a party will not (i) violate PMC’s certificate of
incorporation, bylaws or other organizational documents or (ii) constitute a default (or an event which, with notice or lapse of time, or both, would constitute a default) under, or result in the

  
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breach of, any material contract, agreement or other instrument to which PMC is a party or which may be applicable to PMC or any of its assets, or any and all instruments, agreements, invoices or
other writings which give rise to or otherwise evidence any of the MSRs, or (iii) violate any statute, ordinance or law or any rule, regulation, order, writ, injunction or decree of any court or of any public, governmental or regulatory body,
agency or authority applicable to PMC or its properties except, with respect to clauses (ii) and (iii), for such defaults, breaches or violations that would not reasonably be expected to have a material Adverse Effect. 

(d) No Proceedings. No proceedings, investigations or litigation before any court, tribunal or governmental body is currently pending,
nor to the knowledge of PMC is threatened against PMC, nor is there any such proceeding, investigation or litigation currently pending, nor, to the knowledge of PMC, is any such proceeding, investigation or litigation threatened against PMC with
respect to this Base Indenture, any Indenture Supplement or any other Transaction Document or the transactions contemplated hereby or thereby that could reasonably be expected to have a material Adverse Effect. 

(e) No Consents Required; Fannie Mae Approvals. Except with respect to the Acknowledgment Agreement, no authorization, consent,
approval, or other action by, and no notice to or filing with, any court, governmental authority or regulatory body or other Person domestic or foreign, including HUD or Fannie Mae, is required for the execution, delivery and performance by PMC of
or compliance by PMC with this Base Indenture, any Indenture Supplement or the consummation of the transactions contemplated by this Base Indenture, any Indenture Supplement except for (i) consents, approvals, authorizations and orders which
have obtained in connection with transactions contemplated by the Transaction Documents (including the Acknowledgment Agreement), (ii) filings to perfect the security interest created by this Base Indenture, and (iii) authorizations, consents,
approvals, filings, notices, or other actions the failure to obtain such consents, approvals, authorizations and orders would not reasonably be expected to have a material Adverse Effect. 

(f) Information. No written statement, report or other document furnished or to be furnished pursuant to this Base Indenture or any
other Transaction Document to which it is a party by PMC contains or will contain any statement that is or will be inaccurate or misleading in any material respect. 

(g) Default. The Administrator is not in default with respect to any material contract under which a default should reasonably be
expected to have a material adverse effect on the ability of the Administrator or the Servicer to perform its duties under this Base Indenture or any Indenture Supplement, or with respect to any order of any court, administrative agency, arbitrator
or governmental body which would have a material adverse effect on the transactions contemplated hereunder, and no event has occurred which with notice or lapse of time or both would constitute such a default with respect to any such contract or
order of any court, administrative agency, arbitrator or governmental body. 
 (h) Foreign Corrupt Practices Act. To the extent
applicable, neither PMC nor any subsidiary thereof (collectively, the “FCPA Entities” and individually a “FCPA Entity”), or any employees, directors, or officers of any FCPA Entity, or to the knowledge
of any FCPA Entity, 

  
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any of its agents or representatives or any subsidiary of any FCPA Entity, is aware of, has taken, or will take any action, directly or indirectly, that would result in a violation by such
persons of the Foreign Corrupt Practices Act of 1977, as amended, and the rules and regulations thereunder (the “FCPA”); and PMC and its subsidiaries and Affiliates have conducted their businesses in compliance with the FCPA
and have instituted and maintained policies and procedures designed to ensure continued compliance therewith. 
 (i) Anti-Money
Laundering. The operations of PMC are conducted and, to its knowledge, have been conducted in all material respects in compliance with the applicable anti- money laundering statutes of all jurisdictions to which PMC is subject and the rules and
regulations thereunder, including the Bank Secrecy Act, as amended by Title III of the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 (USA PATRIOT Act) (collectively, the
“U.S. Anti-Money Laundering Laws”), and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator involving PMC with respect to the U.S. Anti-Money Laundering Laws is
pending or, to the knowledge of PMC, threatened. 
 (j) Sanctions. Neither PMC nor its Subsidiaries, nor, to its knowledge, any of
its or its Subsidiaries’ directors, officers, agents, Subsidiaries or employees, is a Person that is, or is owned or controlled by Persons that are (1) the subject of any sanctions administered or enforced by the Office of Foreign Assets
Control of the U.S. Department of the Treasury (“OFAC”), the U.S. Department of State, the U.S. Department of Commerce, the United Nations Security Council, the European Union or Her Majesty’s Treasury (collectively,
“Sanctions”) or (2) located, organized or resident in a country or territory that is, or whose government is, the subject of Sanctions; including the Crimea region of Ukraine, Cuba, Iran, North Korea and Syria. 

(k) No Adverse Actions. PMC has not received a notice from Fannie Mae indicating any adverse fact or circumstance in respect of PMC
which adverse fact or circumstance may reasonably be expected to entitle Fannie Mae to terminate PMC with cause or with respect to which such adverse fact or circumstance has caused Fannie Mae to threaten to terminate, or consider the termination
of, PMC in such notice. 
 (l) Fannie Mae Set Off Rights. PMC has no actual notice, including any notice received from Fannie Mae, or
any reason to believe, that, other than in the normal course of PMC’s business, any circumstances exist that would result in PMC being liable to Fannie Mae for any amount due by reason of: (i) any breach of its obligations to Fannie Mae
under the Fannie Mae Lender Contract or any other similar contracts relating to any of the Portfolio Mortgage Loans, (ii) any unperformed obligation with respect to any of the Portfolio Mortgage Loans, and (iii) any other unmet obligations
to Fannie Mae under the Fannie Mae Lender Contract or any other similar contracts relating to the Portfolio Mortgage Loans. 
 (m) Fannie
Mae. PMC is a seller/servicer approved by Fannie Mae and a lender approved by HUD. PMC is in good standing to service mortgages for Fannie Mae and HUD, as applicable. PMC has not been suspended as a seller/servicer by Fannie Mae or HUD on and
after the date on which PMC first obtained such approval from Fannie Mae or HUD, as applicable. PMC is not under review or investigation outside of due course and does not have knowledge of 

  
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imminent or future investigation outside of due course, by Fannie Mae or HUD on and after the date on which PMC became a Fannie Mae or HUD approved seller/servicer or lender, as the context may
require. The requirements of this Section 10.1(m) shall only be applicable to PMC with respect to HUD if and to the extent that any FHA Loans, USDA Loans or VA Loans are Subject Mortgages. 

(n) Fannie Mae Remittance and Reporting. With respect to each Portfolio Mortgage Loan, PMC has remitted to Fannie Mae and applicable
investors in the securities representing interests in the Portfolio Mortgage Loans and all other applicable Persons (i) all principal and interest payments received to which an investor or such other Person is entitled under the Fannie Mae
Lender Contract, including any guaranty fees, and (ii) all advances of principal and interest required by such Fannie Mae Lender Contract. In accordance with the Fannie Mae Lender Contract, PMC has prepared and submitted all reports in
connection with such payments required by the Fannie Mae Lender Contract. 
 Section 10.2. Covenants of PMC, as Administrator and as
Servicer. 
 (a) Amendments to PC Documents. The Servicer hereby covenants and agrees not to amend any PC Documents without the prior written
consent of the Majority Noteholders of all Outstanding Notes, except for the following purposes and with (i) the consent of the Issuer (evidenced by its execution of such amendment), the Indenture Trustee and the Administrative Agent,
(ii) upon delivery of an Issuer Tax Opinion (unless such Issuer Tax Opinion is waived by either 100% of the VFN Noteholders or the Majority Noteholders of all Outstanding Notes) and (iii) upon delivery by the Issuer to the Indenture
Trustee of an Officer’s Certificate to the effect that the Issuer reasonably believes that such amendment could not have a material Adverse Effect and is not reasonably expected to have a material Adverse Effect on the Noteholders of the Notes
at any time in the future: 
 (A) to evidence the succession of another Person to the Issuer, and the assumption by any such successor of the
covenants of the Issuer in the PC Documents; 
 (B) to add to the covenants of the Issuer, or to surrender any right or power under the PC
Documents conferred upon the Issuer, for the benefit of the Noteholders; 
 (C) to cure any ambiguity, to correct or supplement any provision
under the PC Documents which may be inconsistent with any other provision therein, or to make any other provisions with respect to matters or questions arising under the PC Repurchase Agreement; 

(D) to prevent the Issuer from being subject to tax on its net income as an association (or publicly traded partnership) taxable as a
corporation or a taxable mortgage pool taxable as a corporation, each for United States federal income tax purposes; 
 (E) determined by the
Administrator to be reasonably necessary to maintain the 

  
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rating currently assigned by the applicable Note Rating Agency and/or to avoid such Class of Notes being placed on negative watch by such Note Rating Agency; 

or 
 (F) as otherwise provided in
the related PC Documents. 
 In addition to the foregoing, the Servicer may effect amendments to the PC Documents without the prior written
consent of the Majority Noteholders of each Series of Outstanding Term Notes to cure any inconsistency between any PC Document and any provision of the Acknowledgment Agreement (i) upon delivery of a certification relating to the purpose of
such amendment by the Servicer to the Indenture Trustee, to which the Indenture Trustee may conclusively rely, (ii) with the consent of the Issuer (evidenced by its execution of such amendment), the Indenture Trustee and the Administrative
Agent, and (iii) with the consent of the VFN Noteholders and the Majority Holders of the 2018-FT1 Notes to the extent such Notes remain Outstanding. 

(b) Maintenance of Security Interest. The Administrator shall from time to time, at its own expense, file such additional financing
statements (including continuation statements) as may be necessary to ensure that at any time, the Security Interest of the Indenture Trustee (on behalf of itself and the Noteholders) in all of the Participation Certificates and the other Collateral
is fully protected in accordance with the UCC and that the Security Interest of the Indenture Trustee in the Participation Certificates and the rest of the Trust Estate remains perfected and of first priority. The Administrator shall take all steps
necessary to ensure compliance with Section 9.5(m). 
 (c) Regulatory Reporting Compliance. The Servicer
shall, on or before the last Business Day of the fifth (5th) month following the end of each of the Servicer’s fiscal years (December 31), beginning with the fiscal year ending in 2017, deliver to the Indenture Trustee and the Interested
Noteholders, as applicable, a copy of the results of any Uniform Single Attestation Program for Mortgage Bankers or an Officer’s Certificate that satisfies the requirements of Item 1122(a) of Regulation AB, an independent public
accountant’s report that satisfies the requirements of Item 1123 of Regulation AB, or similar review conducted on the Servicer by its accountants, and such other reports as the Servicer may prepare relating to its servicing functions as the
Servicer. 
 (d) Compliance with PC Documents. The Servicer shall not fail to comply with any obligation as the servicer under each
of the PC Documents, if such failure would have a material Adverse Effect. The Servicer shall immediately notify the Indenture Trustee, the Disposition Manager and the Administrative Agent of its receipt of a notice of termination under the Fannie
Mae Lender Contract. The Indenture Trustee shall forward any such notification to each Noteholder. 
 (e) Compliance with
Obligations. PMC shall comply with all of its other obligations and duties set forth in this Base Indenture and any other Transaction Document. The Administrator shall not permit the Issuer to engage in activities that could violate its
covenants in this Base Indenture. 

  
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 (f) No Transfer of Servicing. Servicer shall not voluntarily transfer servicing under
the Fannie Mae Lender Contract, except with prior written consent of the Administrative Agent, in its sole discretion. If PMH repurchases the Sold MSR Excess Spread PC pursuant to the PMH Repurchase Agreement, PMC shall not release the Sold MSR
Excess Spread PC unless and until the PMH Repurchase Price has been deposited in the Collection and Funding Account. 
 (g) Notice of
Servicer Termination Event. The Servicer shall provide written notice to the Indenture Trustee, the Disposition Manager and each VFN Noteholder of any Servicer Termination Event, within one (1) Business Day of receipt by the Servicer of
notice of such Servicer Termination Event. 
 (h) Administrator Instructions and Functions Performed by Issuer. The Administrator
shall perform the administrative or ministerial functions specifically required of the Issuer pursuant to this Base Indenture and any other Transaction Document. 

(i) Adherence to Servicing Standards. Unless otherwise consented to by the Administrative Agent and the Administrator
(the following collectively, the “Servicing Standards”): 
 (i) the Servicer shall cooperate with the
Indenture Trustee acting as Calculation Agent in its duties set forth in the Transaction Documents; 
 (ii) the Servicer
shall cooperate with the MSR Valuation Agent and the Disposition Manager with respect to its duties set forth in the Transaction Documents; and 

(iii) the Servicer shall service all Portfolio Mortgage Loans without regard to ownership by PMC or its Affiliates of such
Portfolio Mortgage Loans. 
 (j) Performance and Compliance with the Fannie Mae Lender Contract. PMC will comply with all terms,
provisions, covenants and other promises required to be observed by it under the Fannie Mae Lender Contract and the Transaction Documents to which it is a party, maintain the Transaction Documents to which it is a party in full force and effect in
all material respects. 
 (k) Due Diligence. PMC acknowledges that the Indenture Trustee or the Administrative Agent, at PMC’s
expense, has the right to perform and/or appoint a third party to perform, continuing due diligence reviews with respect to the Collateral, for purposes of verifying compliance with the representations, warranties, and specifications made hereunder
and under the other Transaction Documents, or otherwise. PMC agrees that the Indenture Trustee or the Administrative Agent and their Authorized Representatives will be permitted during normal business hours, upon not less than three
(3) Business Days advance written notice, to examine, inspect, make copies of, and make extracts of, any and all documents, records, agreements (including any subservicing contracts), instruments or information relating to the Collateral or
Fannie Mae in the possession of PMC; provided, however, that the foregoing shall not apply with respect to any information that PMC is required by Fannie Mae to keep confidential. Notwithstanding anything to the contrary herein, PMC
shall reimburse the Indenture Trustee and 

  
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the Administrative Agent for any and all reasonable and out-of-pocket costs and expenses reasonably incurred by the
such party and its respective designees and appointees in connection with the ongoing due diligence and auditing activities; provided, that PMC shall not be required to permit more than one due diligence trip or audit during any twelve month
period unless an Event of Default is continuing. 
 (l) Changes in the Fannie Mae Lender Contract. PMC shall provide written notice
to the Indenture Trustee and the Administrative Agent of any changes in the Fannie Mae Lender Contract that may materially affect the Collateral within three (3) Business Days after PMC receives notice thereof. 

(m) Fannie Mae Approval. PMC shall at all times maintain copies of relevant portions of all final written HUD and Fannie Mae audits,
examinations, evaluations, monitoring reviews and reports of its origination and servicing and subservicing operations (including those prepared on a contract basis for any such agency) in which there are material adverse findings, including notices
of defaults, notices of termination of approved status, notices of imposition of supervisory agreements or interim servicing agreements, and notices of probation, suspension, or non-renewal, and all necessary
approvals from each of HUD and Fannie Mae. PMC shall not take any action, or fail to take any action, that would permit HUD or Fannie Mae to terminate or threaten to terminate its right to issue MBS or service loans for HUD or Fannie Mae with cause.
The requirements of this Section 10.2(m) shall only be applicable to PMC with respect to HUD if and to the extent that any FHA Loans, USDA Loans or VA Loans are Subject Mortgages. 

(n) Quality Control. PMC shall conduct quality control reviews of its servicing operations in accordance with industry standards and
Fannie Mae Requirements. Upon the reasonable request of the Indenture Trustee or the Administrative Agent, PMC shall report its quality control findings as such final reports are produced, excluding internal audit reports or information subject to
the attorney-client work product or attorney-client privilege or other applicable privilege. 
 (o) Special Affirmative Covenants
Concerning Collateral. 
 (i) Subject to the Acknowledgment Agreement and the Fannie Mae Requirements, PMC warrants and
shall defend the right, title and interest of the Indenture Trustee, on behalf of the Noteholders, in and to the Collateral to the Indenture Trustee against the claims and demands of all Persons whomsoever. 

(ii) PMC shall preserve the security interests granted hereunder and upon request by the Indenture Trustee or the
Administrative Agent undertake all actions which are necessary or appropriate, in the reasonable judgment of the Indenture Trustee or the Administrative Agent, as applicable, to (x) maintain the security interest of the Indenture Trustee on
behalf of the Noteholders (including the priority thereof) in the Collateral in full force and effect at all times prior to the satisfaction of all obligations under this Base Indenture and the release of the Noteholders’ lien in accordance
with the terms and provisions of this Base Indenture, and (y) preserve and protect the Collateral and protect and enforce the rights of the Indenture Trustee to the Collateral, including the 

  
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making or delivery of all filings and recordings (of financing or continuation statements), or amendments thereto or assignments thereof, and such other instruments or notices, as may be
necessary or appropriate, cause to be marked conspicuously its master data processing records with a legend, acceptable to the Indenture Trustee, evidencing that such security interest has been granted in accordance with this Base Indenture. 

(iii) PMC shall diligently fulfill its duties and obligations under the Fannie Mae Lender Contract in all material respects and
shall not default in any material respect under any of the Fannie Mae Lender Contract or the Acknowledgment Agreement. 
 (p) Maintenance
of Property; Insurance. PMC shall keep all property useful and necessary in its business in good working order and condition except to the extent that the failure to do so could not reasonably be expected to result in a material Adverse Effect.
PMC shall maintain a fidelity bond and be covered by insurance of the kinds and in the amounts customarily maintained by such similarly situated entities in the same jurisdiction and industry as PMC, in amounts acceptable to Fannie Mae except to the
extent that the failure to do so could not reasonably be expected to result in a material Adverse Effect. 
 (q) Use of Proceeds. PMC
shall not use the proceeds of the Notes in contravention of the requirements, if any, of Fannie Mae or Applicable Law. 
 (r)
Reimbursement of Advance Reimbursement Amounts. With respect to any Portfolio Mortgage Loan and collections received with respect thereto, PMC shall reimburse itself for any unreimbursed Advances or seek reimbursement from Fannie Mae only as
provided by the Fannie Mae Lender Contract. 
 (s) Portfolio Mortgage Loan Information. PMC shall deliver to the to the
Administrative Agent within seven (7) Business Days after the end of each month, the information relating to the Portfolio Mortgage Loans required pursuant to Schedule 4 hereto. 

(t) Agency Notices. PMC shall promptly furnish the Administrative Agent copies of all notices it receives from HUD or Fannie Mae
indicating any adverse fact or circumstance in respect of PMC which adverse fact or circumstance may entitle HUD or Fannie Mae, respectively, to terminate or to threaten to terminate PMC with cause or that may entitle HUD or Fannie Mae to conduct
any inspection or investigation of PMC, PMC’s files or PMC’s facilities. The requirements of this Section 10.2(t) shall only be applicable to PMC with respect to HUD if and to the extent that any FHA Loans, USDA
Loans or VA Loans are Subject Mortgages. 
 (u) Fannie Mae Notices. PMC shall promptly furnish the Administrative Agent copies of all
notices it receives from Fannie Mae that materially affect the Servicing Fees, including any notice received with respect to the events set forth in Section 10.1(l). Within forty- five (45) days after each calendar
month, PMC will provide a schedule of repurchases, indemnifications and early payment defaults to Administrative Agent in a format similar to such schedule in PMC’s standard lender certification package. 

(v) Fannie Mae Requirements. PMC shall furnish the Administrative Agent notice of any change in Fannie Mae Eligibility Requirements on
the twenty-fourth (24th) day of each month, or such later date as PMC receives reconciled delinquency ratio information from Fannie Mae. 

  
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 (w) Legal Existence, etc. PMC shall (i) preserve and maintain its legal
existence and all of its material rights, privileges, licenses and franchises; and (ii) keep adequate records and books of account. 

(x) Interim Borrowing Base Determination Date Reporting. PMC shall report the occurrence of an Interim Borrowing Base Determination
Date promptly after a Responsible Officer of the Administrator shall have obtained actual knowledge of such occurrence, and in any event within one (1) Business Day of obtaining such knowledge. 

(y) Subservicer Administration. If PMC at any time uses or intends to use, as applicable, an independent third party subservicer (other
than as provided in the PLS Subservicing Agreement or another Eligible Subservicing Agreement in accordance with this Section 10.2(y)) to fulfill its obligations as Servicer hereunder, PMC shall, prior to the related
servicing transfer date, (i) provide the Administrative Agent and the Indenture Trustee with the related Eligible Subservicing Agreement pursuant to which such subservicer shall service such Mortgage Loans, which Eligible Subservicing Agreement
shall be acceptable to Administrative Agent in all respects, (ii) obtain Administrative Agent’s prior written consent to the use of such subservicer in the performance of such servicing duties and obligations, which consent may not be
unreasonably withheld by the Administrative Agent and (iii) provide the Administrative Agent with a fully executed Eligible Subservicing Agreement with respect to such subservicer. In no event shall PMC’s use of a subservicer relieve PMC
of its obligations hereunder, and PMC shall remain liable under this Base Indenture as if PMC were servicing such Mortgage Loans directly. 

(z) Separateness. PMC shall make appropriate notation in its consolidated financial statements to indicate the separateness of the
Issuer from PMC and to indicate that the Issuer’s assets and credit are separate from those of PMC and its other consolidated subsidiaries. 

Section 10.3. Negative Covenants of PMC. 

PMC covenants and agrees with the Indenture Trustee, the Administrative Agent and each Noteholder that, so long as any Note is Outstanding and
until all obligations have been paid in full, PMC shall not: 
 (a) other than in accordance with Section 10.3(c), take any
action that would directly or indirectly materially impair or materially adversely affect PMC’s title to, or the value of, the Collateral; 

(b) create, incur or permit or allow Subservicer to create, incur or permit to exist any Lien in or on the Collateral except (i) the
security interest granted hereunder in favor of the Indenture Trustee on behalf of the Noteholders, (ii) the rights of Fannie Mae under the Fannie Mae Lender Contract, (iii) with respect to the Sold MSR Excess Spread, the rights of PMH
under the PMH Repurchase Agreement, (iv) the Owner Trustee Lien or (v) any Permitted Lien, or assign any right to receive income in respect thereof except to the Sold MSR Excess Spread to PMH pursuant to the Excess Spread Participation
Agreement; 

  
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 (c) sell, lease or otherwise dispose of any Collateral (other than sales or dispositions of
MSRs (i) resulting from the payoff of the related Mortgages or the purchase of the related Mortgage by PMC, (ii) as required by Fannie Mae or (iii) in the ordinary course of PMC’s servicing business) except as expressly permitted
by this Base Indenture; 
 (d) engage to any substantial extent in any line or lines of business activity other than the businesses related
to mortgage origination and servicing carried on by it as of the Closing Date; 
 (e) (i) cancel or terminate any Transaction Documents to
which it is a party or consent to or accept any cancellation or termination thereof, (ii) amend, amend and restate, supplement or otherwise modify any Transaction Document, other than an amendment of the Fannie Mae Lender Contract done
unilaterally by Fannie Mae, (iii) consent to any amendment, modification or waiver of any term or condition of any Transaction Document, without the prior written consent of the Administrative Agent, provided that if the amendment of the Fannie
Mae Lender Contract is done unilaterally by Fannie Mae, the prior written consent of the Administrative Agent is not required, (iii) waive any material default under or breach of the Fannie Mae Lender Contract, or (v) take any other action in
connection with any such Transaction Documents that would impair in any material respect the value of the interests or rights of PMC thereunder or that would impair in any material respect the interests or rights of the Indenture Trustee, the
Administrative Agent or any Noteholder; 
 (f) change the state of its organization unless PMC shall have given the Administrative Agent at
least thirty (30) days’ prior written notice thereof and unless, prior to any such change, PMC shall have filed, or caused to be filed, such financing statements or amendments as the Indenture Trustee determines may be reasonably necessary
to continue the perfection of the Indenture Trustee’s interest in the Collateral; 
 (g) appoint any subservicers (other than as
provided in any Eligible Subservicing Agreement) with respect to any MSRs pledged to the Indenture Trustee pursuant to this Base Indenture; 

(h) amend the PLS Subservicing Agreement or any other Eligible Subservicing Agreement after the Closing Date in any way that could reasonably
be expected to have a material adverse effect on the rights of the Noteholders without the prior written consent of the Administrative Agent; 

(i) take any action that would directly or indirectly materially impair or materially adversely affect PMC’s title to, or the value, of
the Servicing Fees or materially increase the duties, responsibilities or obligations of PMC in respect of the Collateral; 
 (j) make any
Restricted Payments at any time while an Event of Default has occurred and is continuing; and 
 (k) not enter into any transaction,
including any purchase, sale, lease or exchange of 

  
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property or the rendering of any service, with any Affiliate unless such transaction is (i) in the ordinary course of PMC’s business and (ii) upon fair and reasonable terms no less
favorable to PMC than it would obtain in a comparable arm’s length transaction with a Person which is not an Affiliate. 
 Section 10.4.
Liability of PMC, as Administrator and as Servicer; Indemnities. 
 (a) Obligations. Each of the Administrator and the
Servicer, severally and not jointly, shall indemnify, defend and hold harmless the Indenture Trustee (in all its capacities), the Securities Intermediary, the Note Registrar, the Calculation Agent, the Paying Agent, the Securities Intermediary, the
Disposition Manager, the Trust Estate, the Owner Trustee and the Noteholders (as applicable, with respect to the related Series of Notes) (each an “Indemnified Party”) from and against any and all costs, expenses, losses,
claims, damages and liabilities to the extent that such cost, expense, loss, claim, damage or liability arose out of, and was imposed upon, the Indenture Trustee, the Securities Intermediary, the Note Registrar, the Disposition Manager, the Owner
Trustee, the Calculation Agent, the Paying Agent, the Securities Intermediary, the Trust Estate or any Noteholder (i) in the case of indemnification by the Administrator, by reason of a violation of law, gross negligence or willful misconduct
of the Administrator (or of the Issuer as a result of a direction, act or omission by the Administrator), in the performance of their respective obligations under this Base Indenture and the other Transaction Documents or (ii) in the case of
indemnification by the Servicer, by reason of a violation of law, gross negligence or willful misconduct of the Servicer, in the performance of its respective obligations under this Base Indenture and the other Transaction Documents or as servicer
or subservicer under the Fannie Mae Lender Contracts, or by reason of the breach by the Servicer of any of its representations, warranties or covenants hereunder or under the Fannie Mae Lender Contracts; provided, that any indemnification
amounts payable by the Administrator or the Servicer, as the case may be, to the Owner Trustee hereunder shall not be duplicative of any indemnification amount paid by the Administrator to the Owner Trustee in accordance with the Trust Agreement or
under the Administration Agreement. 
 (b) Notification and Defense. Promptly after any Indemnified Party shall have been served with
the summons or other first legal process or shall have received written notice of the threat of a claim in respect of which a claim for indemnity may be made against PMC under this Section 10.4, the Indemnified Party shall
notify the Indemnifying Party in writing of the service of such summons, other legal process or written notice, giving information therein as to the nature and basis of the claim, but failure so to notify the Indemnifying Party shall not relieve the
Indemnifying Party from any liability which it may have hereunder or otherwise, except to the extent that the Indemnifying Party is prejudiced by such failure so to notify the Indemnifying Party. The Indemnifying Party will be entitled, at its own
expense, to participate in the defense of any such claim or action and, to the extent that it may wish, to assume the defense thereof, with counsel reasonably satisfactory to such Indemnified Party, and, after notice from the Indemnifying Party to
such Indemnified Party that the Indemnifying Party wishes to assume the defense of any such action, the Indemnifying Party will not be liable to such Indemnified Party under this Section 10.4 for any legal or other expenses
subsequently incurred by such Indemnified Party in connection with the defense of any such action unless (i) the defendants in any such action include both the Indemnified Party and the Indemnifying Party, and the Indemnified Party (upon the
advice of 

  
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counsel) shall have reasonably concluded that there may be legal defenses available to it that are different from or additional to those available to the Indemnifying Party, or one or more
Indemnified Parties, and which in the reasonable judgment of such counsel are sufficient to create a conflict of interest for the same counsel to represent both the Indemnifying Party and such Indemnified Party, (ii) the Indemnifying Party
shall not have employed counsel reasonably satisfactory to the Indemnified Party to represent the Indemnified Party within a reasonable time after notice of commencement of the action, or (iii) the Indemnifying Party has authorized the
employment of counsel for the Indemnified Party at the expense of the Indemnifying Party; then, in any such event, such Indemnified Party shall have the right to employ its own counsel in such action, and the reasonable fees and expenses of such
counsel shall be borne by the Indemnifying Party; provided, however, that the Indemnifying Party shall not in connection with any such action or separate but substantially similar or related actions arising out of the same general
allegations or circumstances, be liable for any fees and expenses of more than one firm of attorneys at any time for all Indemnified Parties. Each Indemnified Party, as a condition of the indemnity agreement contained herein, shall use its
commercially reasonable efforts to cooperate with the Indemnifying Party in the defense of any such action or claim. The Indemnifying Party shall not, without the prior written consent of any Indemnified Party, effect any settlement of any pending
or threatened proceeding in respect of which such Indemnified Party is or could have been a party and indemnity could have been sought hereunder by such Indemnified Party, unless such settlement includes an unconditional release of such Indemnified
Party from all liability on claims that are the subject matter of such proceeding or threatened proceeding. 
 (c) Expenses.
Indemnification under this Section shall include, without limitation, reasonable fees and expenses of counsel and expenses of litigation (including such fees and expenses incurred in enforcing the Indemnifying Party’s right to indemnification).
If the Indemnifying Party has made any indemnity payments pursuant to this Section and the recipient thereafter collects any of such amounts from others, the recipient shall promptly repay such amounts collected to the Indemnifying Party, without
interest. 
 (d) Survival. The provisions of this Section 10.4 shall survive the resignation or removal of
the Indenture Trustee, the Calculation Agent and the Paying Agent and the termination of this Base Indenture. 
 Section 10.5. Merger or
Consolidation, or Assumption of the Obligations, of PMC. 
 Any Person (a) into which PMC may be merged or consolidated,
(b) which may result from any merger, conversion or consolidation to which PMC shall be a party, or (c) which may succeed to all or substantially all of the business or assets of PMC which Person in any of the foregoing cases executes an
agreement of assumption to perform every obligation of PMC under this Base Indenture, shall be the successor to PMC under this Base Indenture without the execution or filing of any paper or any further act on the part of any of the parties to this
Base Indenture; provided, however, that (i) if any of the Notes are then rated by a Note Rating Agency, then prior to any such merger, consolidation or conversion (1) PMC shall have provided to the Indenture Trustee and the
Noteholders a letter from each Note Rating Agency that rated Outstanding Notes indicating that such merger, consolidation or conversion will not result in the qualification, reduction or withdrawal of the then current ratings of the Outstanding
Notes or (2) if the Administrator and the 

  
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Administrative Agents determine in their reasonable judgment that an applicable Note Rating Agency no longer provides such letters as described in the foregoing clause (1), (a) the
Administrator shall provide notice of such merger, consolidation or conversion to the related Note Rating Agency and (b) each Administrative Agent shall have provided its prior written consent to merger, consolidation or conversion;
provided, that the Issuer provides an Issuer Certificate to the effect that any such merger, consolidation or conversion will not have a material Adverse Effect on the Outstanding Notes, and (ii) prior to any such merger, consolidation
or conversion the Administrator shall have delivered to the Indenture Trustee an Opinion of Counsel to the effect that such merger, consolidation or conversion complies with the terms of this Base Indenture and one or more Opinions of Counsel
updating or restating all opinions delivered on the date of this Base Indenture with respect to corporate matters and the enforceability of Transaction Documents against PMC true sale as to the transfers of the Participation Certificates from the
Servicer to the Issuer and non-consolidation of the Servicer with the Issuer and security interest and tax and any additional opinions required under any related Indenture Supplement; provided,
further, that the conditions specified in clauses (i) and (ii) above shall not apply to any transaction (i) in which an Affiliate of PMC assumes the obligations of PMC and otherwise satisfies the eligibility criteria
applicable to the Servicer under the Fannie Mae Lender Contracts or (ii) in which an Affiliate of PMC is merged into or is otherwise combined with PMC and PMC is the sole survivor of such merger or other combination. PMC shall provide notice of
any merger, consolidation or succession pursuant to this Section to the Indenture Trustee, the Noteholders and each Note Rating Agency. 

Except as described in the preceding paragraph, PMC may not assign or delegate any of its rights or obligations under this Base Indenture or
any other Transaction Document. 
 Article XI 

The Indenture Trustee 

Section 11.1. Certain Duties and Responsibilities. 

(a) The Indenture Trustee undertakes to perform such duties and only such duties as are specifically set forth in this Base Indenture with
respect to the Notes, and no implied covenants, duties (including fiduciary duties) or obligations will be read into this Base Indenture against the Indenture Trustee. 

(b) In the absence of bad faith on its part, the Indenture Trustee may, with respect to Notes, conclusively rely upon certificates or opinions
furnished to the Indenture Trustee and conforming to the requirements of this Base Indenture, as to the truth of the statements and the correctness of the opinions expressed therein; but in the case of any such certificates or opinions which by any
provision hereof are specifically required to be furnished to the Indenture Trustee, the Indenture Trustee will be under a duty to examine the same to determine whether or not they conform on their face to the requirements of this Base Indenture but
need not confirm or investigate the accuracy of any mathematical calculations or other facts stated therein. 
 (c) If an Event of Default
has occurred and is continuing, with respect to the Notes of which a Responsible Officer of the Indenture Trustee has been given written notice in the manner set forth in this Indenture or of which a Responsible Officer of the Indenture Trustee has
actual 

  
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knowledge, the Indenture Trustee will exercise such of the rights and powers vested in it by this Base Indenture, and use the same degree of care and skill in their exercise, as a prudent person
would exercise or use under the circumstances in the conduct of such person’s own affairs; provided that the foregoing shall not be deemed to require the Indenture Trustee to take any action, or have any liability for the failure to take any
action, where the terms of this Base Indenture or any Supplement provide that the Indenture Trustee only takes action at the direction of a certain percentage of the Noteholders or other Person or if the Indenture Trustee is permitted to refrain
from taking action unless it has been provided with adequate indemnity. 
 (d) No provision of this Base Indenture will be construed to
relieve the Indenture Trustee from liability for its own negligent action, its own negligent failure to act, or its own willful misconduct, except that: 

(i) this subsection (d) will not be construed to limit the effect of subsection (a) of this
Section 11.1; 
 (ii) the Indenture Trustee will not be liable for any error of judgment made in
good faith by an Indenture Trustee Authorized Officer, unless it will be proved that the Indenture Trustee was negligent in ascertaining the pertinent facts; 

(iii) the Indenture Trustee will not be liable with respect to any action taken or omitted to be taken by it in good faith in
accordance with the direction of the Majority Noteholders or the Administrative Agent relating to the time, method and place of conducting any proceeding for any remedy available to the Indenture Trustee, or exercising any trust or power conferred
upon the Indenture Trustee, under this Base Indenture with respect to the Notes of any Class, to the extent consistent with Sections 8.7 and 8.8; 

(iv) no provision of this Base Indenture will require the Indenture Trustee to expend or risk its own funds or otherwise incur
any financial liability in the performance of any of its duties hereunder, or in the exercise of any of its rights or powers, if it has reasonable grounds for believing that repayment of such funds or indemnity satisfactory to the Indenture Trustee
against such risk or liability is not reasonably assured to it; 
 (v) whether or not therein expressly so provided, every
provision of this Base Indenture relating to the conduct or affecting the liability of or affording protection to the Indenture Trustee will be subject to the provisions of this Section; and 

(vi) the Indenture Trustee shall not be liable with respect to any action taken or omitted to be taken by it in good faith in
accordance with the direction of the Issuer or of Noteholders, as applicable, in accordance with the terms of this Indenture, relating to the time, method or place of conducting any proceeding for any remedy available to the Indenture Trustee or
with respect to the exercise of any trust or power conferred upon such party under this Indenture or with respect to the Notes. 
 (e) Upon
the occurrence of an Event of Default under the PC Repurchase Agreement, the Indenture Trustee may (and at the direction of the Administrative Agent or the Series Required Noteholders) send an Activation Notice to the Account Bank pursuant to which
the Indenture Trustee shall exercise its control over the Dedicated Account, as applicable. 

  
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 Section 11.2. Notice of Defaults. 

Except as otherwise provided in Section 3.3(b), within ninety (90) days after the occurrence of any Event of
Default hereunder, 
 (a) the Indenture Trustee will transmit by mail to all registered Noteholders, as their names and addresses appear in
the Note Register, notice of such default hereunder known to the Indenture Trustee, and 
 (b) the Indenture Trustee will give prompt
written notification thereof to each Note Rating Agency, unless such default shall have been cured or waived; provided, however, that, except in the case of a default in the payment of the principal of or interest on any Note of any
Series or Class, the Indenture Trustee will be protected in withholding such notice if and so long as an Indenture Trustee Responsible Officer in good faith determines that the withholding of such notice is in the interests of the Noteholders of
such Series or Class. For the purpose of this Section, the term “default” means any event which is, or after notice or lapse of time or both would become, an Event of Default. 

Section 11.3. Certain Rights of Indenture Trustee. 

Except as otherwise provided in Section 11.1: 

(a) the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary may conclusively rely and will be protected in acting
or refraining from acting upon any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture or other paper or document (whether in its original or facsimile form) believed by it to
be genuine and to have been signed or presented by the proper party or parties; 
 (b) any request or direction of the Issuer mentioned
herein shall be sufficiently evidenced by an Issuer Certificate; 
 (c) whenever in the administration of this Base Indenture the Indenture
Trustee, Calculation Agent, Paying Agent and Securities Intermediary deems it desirable that a matter be proved or established before taking, suffering or omitting any action hereunder, the Indenture Trustee (unless other evidence be herein
specifically prescribed) may, in the absence of bad faith on its part, rely upon an Officer’s Certificate; 
 (d) each of the Indenture
Trustee, Calculation Agent, Paying Agent and Securities Intermediary may consult with counsel of its own selection, at the expense of the Issuer, and the advice of such counsel or any Opinion of Counsel will be full and complete authorization and
protection in respect of any action taken, suffered or omitted by it hereunder in good faith and in reliance thereon; 

  
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 (e) none of the Indenture Trustee, Calculation Agent, Paying Agent and Securities
Intermediary shall be under obligation to exercise any of the rights or powers vested in it by this Base Indenture at the request or direction of any of the Noteholders pursuant to this Base Indenture, unless such Noteholders shall have offered to
the Indenture Trustee security or indemnity reasonably satisfactory to it against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction; 

(f) none of the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary shall be bound to make any investigation into
the facts or matters stated in any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture or other paper or document; but such party in its discretion, may make such further
inquiry or investigation into such facts or matters as it may see fit, and, if any of the Indenture Trustee, the Paying Agent, the Note Registrar or the Securities Intermediary shall determine to make such further inquiry or investigation, it shall
be entitled to examine the books, records and premises of the Issuer, personally or by agent or attorney, upon reasonable notice of not less than three (3) Business Days; 

(g) each of the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary may execute any of the trusts or powers
hereunder or perform any duties hereunder either directly or by or through agents or attorneys and none of the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary shall be responsible for any misconduct or negligence on
the part of any agent or attorney appointed with due care by it hereunder; 
 (h) none of the Indenture Trustee, Calculation Agent, Paying
Agent and Securities Intermediary shall be required to provide any surety or bond of any kind in connection with the execution or performance of its duties hereunder; 

(i) none of the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary shall be deemed to make any representations as
to the validity or sufficiency of this Indenture; 
 (j) none of the Indenture Trustee, Calculation Agent, Paying Agent and Securities
Intermediary shall at any time have any responsibility or liability other than as may be expressly set forth in this Indenture for or with respect to the legality, validity or enforceability of any of the Notes; 

(k) in order to comply with their respective duties under the USA Patriot Act of 2001, the Indenture Trustee, Calculation Agent, Paying Agent
and Securities Intermediary shall obtain and verify certain information and documentation from the other parties to this Indenture including such party’s name, address, and other identifying information; 

(l) the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary shall not be under any obligation to
(i) institute, conduct, defend or otherwise participate in any litigation or other legal Proceeding hereunder or in relation hereto at the request, order or direction of any of the Noteholders pursuant to the provisions of this Indenture, or
(ii) 

  
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undertake an investigation of any party to any transaction agreement, unless, in each case, such Noteholders shall have offered to the Indenture, Calculation Agent, Paying Agent and Securities
Intermediary security or indemnity satisfactory to it against the costs, expenses and liabilities which may be incurred therein or thereby; 

(m) the Indenture Trustee shall not have any duty or responsibility in respect to (i) any recording, filing or depositing of this
Indenture or any other agreement or instrument, monitoring or filing any financing statement or continuation statement evidencing a security interest, the maintenance of any such recording, filing or depositing or any
re-recording, re-filing or re- depositing of any thereof, or otherwise monitoring the perfection, continuation of perfection or
the sufficiency or validity of any security interest in or related to the Collateral, (ii) the acquisition or maintenance of any insurance or (iii) the payment or discharge of any tax, assessment, or other governmental charge or any lien
or encumbrance of any kind owing with respect to, assessed or levied against, any part of the Collateral. The Indenture Trustee shall be authorized to, but shall in no event have any duty or responsibility to, file any financing or continuation
statements or record any documents or instruments in any public office at any time or times or otherwise perfect or maintain any security interest in the Collateral; 

(n) the Indenture Trustee shall not be deemed to have notice of any default, Event of Default, Funding Interruption Event or Servicer
Termination Event unless an Indenture Trustee Responsible Officer has actual knowledge thereof or unless written notice of any event which is in fact such a default, Event of Default, Funding Interruption Event or Servicer Termination Event is
received by the Indenture Trustee at the Corporate Trust Office of the Indenture Trustee, and such notice references the Notes and this Base Indenture; in the absence of receipt of such notice or actual knowledge, the Indenture Trustee may
conclusively assume that there is no default, Event of Default, Funding Interruption Event or Servicer Termination Event; 
 (o) the rights,
privileges, protections, immunities and benefits given to the Indenture Trustee hereunder and under each Transaction Document, including its right to be indemnified, are extended to, and shall be enforceable (without duplication) by, the Indenture
Trustee or the bank serving as Indenture Trustee, as applicable, in each of its capacities hereunder and thereunder (including Calculation Agent, Custodian, Paying Agent, Securities Intermediary and Note Registrar), and each agent and other person
employed to act hereunder and thereunder; 
 (p) none of the provisions contained in this Base Indenture shall in any event require the
Indenture Trustee to perform, or be responsible for the manner of performance of, any of the obligations of the Servicer or any other Person under this Base Indenture; 

(q) the Indenture Trustee shall have no duty (A) to see to any recording, filing, or depositing of this Base Indenture or any agreement
referred to herein or any financing statement or continuation statement evidencing a security interest, or to see to the maintenance of any such recording or filing or depositing or to any rerecording, refiling or redepositing of any thereof,
(B) to see to any insurance, (C) to see to the payment or discharge of any tax, assessment, or other governmental charge or any lien or encumbrance of any kind owing with respect to, assessed or levied against, any part of the Trust Estate
other than from funds available in the Trust Accounts or (D) to confirm or verify the contents of any reports or certificates of the Servicer or the Administrator delivered to the Indenture Trustee pursuant to this Base Indenture believed by
the Indenture Trustee to be genuine and to have been signed or presented by the proper party or parties; 

  
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 (r) the Indenture Trustee shall not be personally liable for any action taken, suffered or
omitted by it in good faith and believed by it to be authorized or within the discretion or rights or powers conferred upon it by this Base Indenture; 

(s) the right of the Indenture Trustee to perform any discretionary act enumerated in this Base Indenture or the other Transaction Documents
shall not be construed as a duty, and the Indenture Trustee shall not be answerable for other than its negligence or willful misconduct in the performance of such act; 

(t) the Indenture Trustee shall not be required to give any bond or surety in respect of the execution of the Trust Estate created hereby or
the powers granted hereunder; 
 (u) in making or disposing of any investment permitted by this Base Indenture, the Indenture Trustee is
authorized to deal with itself (in its individual capacity) or with any one or more of its Affiliates, in each case on an arm’s-length basis and on standard market terms, whether it or such Affiliate is
acting as a subagent of the Indenture Trustee or for any third Person or dealing as principal for its own account; 
 (v) the Indenture
Trustee shall not be responsible for delays or failures in the performance of its obligations hereunder arising out of or caused by, directly or indirectly, forces beyond its control, including strikes, work stoppages, accidents, acts of war or
terrorism, civil or military disturbances, nuclear or natural catastrophes or acts or God, and interruptions, loss or malfunctions of utilities, communications or computer (software and hardware) services; and 

(w) None of the Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary (i) shall be responsible for and make any
representation as to the validity, legality, enforceability, sufficiency or adequacy of this Indenture, the Notes or any other Transaction Document or as to the correctness of any statement thereof, (ii) shall be accountable for the
Issuer’s use of the proceeds from the Notes, or (iii) shall be responsible for any statement of the Issuer in this Indenture or in any document issued in connection with the sale of the Notes or in the Notes. The recitals contained herein
and in the Notes shall be construed as the statements of the Issuer. The Indenture Trustee shall not be responsible for any statement of the Issuer in this Indenture or any statement in any document, including any offering memorandum, issued in
connection with the sale of any Notes or in the Notes other than information provided by the Indenture Trustee and the Indenture Trustee’s certificate of authentication or for the use or application of any funds received by any Paying Agent
other than the Indenture Trustee. 
 (x) In no event will the Indenture Trustee have any responsibility to monitor compliance with or
enforce compliance with the credit risk retention rules under Regulation RR or other rules or regulations relating to risk retention. The Indenture Trustee will not be charged with knowledge of such rules, nor will it be liable to any Noteholder,
Certificateholder, the Servicer or any other Person for violation of such rules now or hereinafter in effect. The Indenture Trustee will not be required to monitor, initiate or conduct any proceedings to enforce the obligations of

  
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the Servicer or any other Person with respect to any breach of representation or warranty under any Transaction Document, and the Indenture Trustee will not have any duty to conduct any
investigation as to the occurrence of any condition requiring the repurchase or substitution of any security by any Person pursuant to any Transaction Document. 

(y) The Indenture Trustee is hereby authorized and directed to enter into the Transaction Documents to which it is a party. 

(z) The Indenture Trustee (in any capacity in which it acts) shall have no duty, obligation or responsibility to determine whether a Benchmark
Transition Event has occurred or to select an alternative index, and shall have no liability for the Designated Transaction Representative’s selection of such alternative index. 

Section 11.4. Not Responsible for Recitals or Issuance of Notes. 

The recitals contained herein and in the Notes, except the certificates of authentication, will be taken as the statements of the Issuer, and
the Indenture Trustee assumes no responsibility for their correctness. The Indenture Trustee makes no representations as to the validity or sufficiency of this Base Indenture or of the Notes. The Indenture Trustee will not be accountable for the use
or application by the Issuer of Notes or the proceeds thereof, or for the use or application of any funds paid to the Servicer in respect of any amounts deposited in or withdrawn from the Trust Accounts or the custodial accounts by the Servicer. The
Indenture Trustee shall not be responsible for the legality or validity of this Base Indenture or the validity, priority, perfection or sufficiency of the security for the Notes issued or intended to be issued hereunder. 

Section 11.5. Indenture Trustee’s Appointment as
Attorney-In-Fact. 
 (a) The Servicer hereby
irrevocably constitutes and appoints the Indenture Trustee and any officer or agent thereof, during the continuation of an Event of Default, with full power of substitution, as its true and lawful attorney-in-fact with full irrevocable power and authority in the place and stead of the Servicer and in the name of the Servicer, for the purpose of carrying out the terms of this Base Indenture and each
Indenture Supplement, to take any and all appropriate action and to execute any and all documents and instruments which may be necessary or desirable to accomplish the purposes of this Base Indenture, each Indenture Supplement, the PC Repo Guaranty,
the PMH Repo Guaranty, the Fannie Mae Lender Contract, the Acknowledgment Agreement, and, without limiting the generality of the foregoing, the Issuer hereby gives the Indenture Trustee the power and right: 

(1) to take possession of and endorse and collect any wired funds, checks, drafts, notes, acceptances or other instruments for
the payment of monies due under any Participation Certificates Granted by the Issuer to the Indenture Trustee from the Obligors on underlying Mortgage Loans or the Servicer, as the case may be; 

(2) to file any claim or proceeding in any court of law or equity or take any other action otherwise deemed appropriate by the
Indenture Trustee for the purpose of collecting any and all such monies due from the Obligors on underlying Mortgage Loans 

  
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or the Servicer under such Participation Certificate whenever payable and to enforce any other right in respect of any Participation Certificate Granted by the Issuer or related to the Trust
Estate; 
 (3) to direct the related Servicer to make payment of any and all monies due or to become due under the
Participation Certificate Granted by the Issuer directly to the Indenture Trustee or as the Indenture Trustee shall direct; 

(4) to ask or demand for, collect, receive payment of and receipt for, any and all monies, claims and other amounts due or to
become due from the Servicer at any time in respect of or arising out of any Participation Certificate Granted by the Issuer; 

(5) to sign and endorse any assignments, notices and other documents in connection with the Participation Certificates Granted
by the Issuer or the Trust Estate; 
 (6) to sell, transfer, pledge and make any agreement with respect to or otherwise deal
with the Participation Certificates Granted by the Issuer and the Trust Estate as fully and completely as though the Indenture Trustee were the absolute owner thereof for all purposes, and do, at the Indenture Trustee’s option and at the
expense of the Issuer, at any time, or from time to time, all acts and things which the Indenture Trustee deems necessary to protect, preserve or realize upon the Participation Certificate Granted by the Issuer or the Trust Estate and the Indenture
Trustee’s and the Issuer’s respective security interests and ownership interests therein and to effect the intent of this Base Indenture, all as fully and effectively as the Issuer might do; 

(7) to perform or cause to be performed, the Servicer’s obligations under the Fannie Mae Lender Contract to the extent
permitted by the Acknowledgment Agreement; 
 (8) upon and after the occurrence of a default by the Servicer under the
Fannie Mae Lender Contract, the Servicer also authorizes the Indenture Trustee, or other party appointed by the Indenture Trustee, to have on site access to the Servicer’s operation sites, sufficient for the Administrative Agent or other party
appointed by it, to begin the process of transferring the portfolio to a “Standby Issuer” as required pursuant to the Acknowledgment Agreement; 

(9) the Servicer also authorizes the Administrative Agent, at any time and from time to time, to execute, in connection with
the sale provided for in Section 8.15 hereof, any endorsements, assignments or other instruments of conveyance or transfer with respect to the Collateral; provided that the exercise of such powers are in accordance with the
Acknowledgment Agreement; and 
 (10) the powers conferred on the Indenture Trustee are solely to protect the
Noteholders’ interest in the Collateral and shall not impose any duty upon the Indenture Trustee to exercise any such powers. 

  
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 (b) The Indenture Trustee shall be accountable only for amounts that it actually receives as
a result of the exercise of such powers, and neither the Indenture Trustee nor any of its officers, directors, or employees shall be responsible to the Issuer for any act or failure to act hereunder; provided, that the Indenture Trustee shall
exercise such powers only in accordance with the Acknowledgment Agreement. Nothing contained herein shall in any way be deemed to be a grant of power or authority to the Indenture Trustee or any officer or agent thereof to take any of the actions
described in this paragraph with respect to any underlying Obligor under any Portfolio Mortgage Loan. 
 Section 11.6. Money Held in Trust.

 The Indenture Trustee will be under no liability for interest on any money received by it hereunder except as otherwise agreed with
the Issuer. 
 Section 11.7. Compensation and Reimbursement, Limit on Compensation, Reimbursement and Indemnity. 

Except as otherwise provided in this Base Indenture: 

(a) The Indenture Trustee (including in all of its capacities) will be paid the Indenture Trustee Fee on each Payment Date pursuant to
Section 4.5 as compensation for its services (in all capacities hereunder). 
 (b) The Indenture Trustee
(including in all of its capacities) shall be indemnified and held harmless by the Trust Estate as set forth in Section 4.5 and Section 8.6, and shall be secondarily indemnified and held harmless
by the Administrator for, from and against, as the case may be, any loss, liability or expense incurred without negligence or willful misconduct on its part, arising out of, or in connection with, the acceptance and administration of the Trust
Estate, including the costs and expenses (including reasonable legal fees and expenses) of defending itself against any claim in connection with the exercise or performance of any of its powers or duties under this Base Indenture, provided
that: 
 (i) with respect to any such claim, the Indenture Trustee shall have given the Administrator written notice thereof
promptly after a Responsible Officer of the Indenture Trustee shall have actual knowledge thereof; provided, however that failure to give such written notice shall not affect the Trust Estate’s or the Administrator’s
obligation to indemnify the Indenture Trustee, unless such failure materially prejudices the Trust Estate’s or the Administrator’s rights; 

(ii) the Administrator may, at its option, assume the defense of any such claim using counsel reasonably satisfactory to the
Indenture Trustee; and 
 (iii) notwithstanding anything in this Base Indenture to the contrary, the Administrator shall not
be liable for settlement of any claim by the Indenture Trustee, as the case may be, entered into without the prior consent of the Administrator, which consent shall not be unreasonably withheld. 

  
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 Notwithstanding the foregoing, in no event shall the Trust Estate or the Administrator be
required to indemnify the Indenture Trustee if the indemnification obligation under this Section 11.7 is the result of gross negligence or willful misconduct by the Indenture Trustee. 

No termination of this Base Indenture, or the resignation or removal of the Indenture Trustee, shall affect the obligations created by this
Section 11.7(b) of the Administrator to indemnify the Indenture Trustee under the conditions and to the extent set forth herein. 

Notwithstanding the foregoing, the indemnification provided in this Section 11.7(b) with respect to the
Administrator shall not pertain to any loss, liability or expense of the Indenture Trustee, including the costs and expenses of defending itself against any claim, incurred in connection with any actions taken by the Indenture Trustee at the
direction of the Noteholders pursuant to the terms of this Base Indenture. 
 The Indenture Trustee agrees fully to perform its duties under
this Base Indenture notwithstanding its failure to receive any payments of Indenture Trustee Fees pursuant to this Section 11.7(b) subject to its rights to resign in accordance with the terms of this Base Indenture. 

Anything in this Base Indenture to the contrary notwithstanding, in no event shall the Indenture Trustee (in any of its capacities) be liable
for special, indirect or consequential loss or damage of any kind whatsoever (including lost profits), even if the Indenture Trustee has been advised of the likelihood of such a loss or damage and regardless of the form of action. 

The Securities Intermediary, the Paying Agent, the Custodian and the Calculation Agent shall be indemnified by the Trust Estate pursuant to
Section 4.5 and Section 8.6, and secondarily by the Administrator, in respect of the matters described in Section 4.9 to the same extent as the Indenture Trustee. 

Neither of the Indenture Trustee nor the Securities Intermediary will have any recourse to any asset of the Issuer or the Trust Estate other
than funds available pursuant to Section 4.5 and Section 8.6 or to any Person other than the Issuer (or the Administrator pursuant to this Section 11.7). Except as
specified in Section 4.5 and Section 8.6, any such payment to the Indenture Trustee shall be subordinate to payments to be made to Noteholders. 

The Indenture Trustee is not responsible for any action or inaction of the Administrative Agent. 

Section 11.8. Corporate Indenture Trustee Required; Eligibility. 

There will at all times be an Indenture Trustee hereunder with respect to all Classes of Notes, which will be either a bank or a corporation
organized and doing business under the laws of the United States of America or of any state, authorized under such laws to exercise corporate trust powers, having a combined capital and surplus of at least $50,000,000, subject to supervision or
examination by a federal or state authority of the United States, and the long-term unsecured debt obligation of which are rated at least BBB from each Note Rating Agency then rating Outstanding Notes if such institution is rated by the Note Rating
Agency, as applicable, or if such Note Rating Agency downgrades the Indenture Trustee below such minimum rating, the Indenture 

  
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Trustee may obtain, at its own expense, a confirmation from such Note Rating Agency that downgraded the Indenture Trustee below such rating category that there is no Ratings Effect by reason of
such downgrade to a lower rating. If such bank or corporation publishes reports of condition at least annually, pursuant to law or to the requirements of the aforesaid supervising or examining authority, then for the purposes of this Section, the
combined capital and surplus of such bank or corporation will be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published. The Issuer may not, nor may any Person directly or indirectly
Controlling, Controlled by, or under common Control with the Issuer, serve as Indenture Trustee. If at any time the Indenture Trustee ceases to be eligible in accordance with the provisions of this Section 11.8, it shall
resign upon failure to obtain such confirmation within a reasonable time (not to exceed thirty (30) Business Days) after such ineligibility in the manner and with the effect hereinafter specified in this Article. 

Section 11.9. Resignation and Removal; Appointment of Successor. 

(a) No resignation or removal of the Indenture Trustee and no appointment of a successor Indenture Trustee pursuant to this Article will become
effective until the acceptance of appointment by the successor Indenture Trustee under Section 11.10. 
 (b) The
Indenture Trustee and the bank serving as Indenture Trustee (in all capacities) may resign with respect to all, but not less than all, such capacities and all, but not less than all of the Outstanding Notes at any time by giving written notice
thereof to the Issuer. If an instrument of acceptance by a successor Indenture Trustee, Calculation Agent, Paying Agent or Securities Intermediary shall not have been delivered to the Indenture Trustee within thirty (30) days after the giving
of such notice of resignation, the resigning Indenture Trustee, Calculation Agent, Paying Agent or Securities Intermediary may petition any court of competent jurisdiction for the appointment of a successor Indenture Trustee, Calculation Agent,
Paying Agent and Securities Intermediary. Written notice of resignation by the Indenture Trustee under this Base Indenture shall also constitute notice of resignation as Calculation Agent, Securities Intermediary, Paying Agent, and Note Registrar
hereunder, to the extent the Indenture Trustee serves in such a capacity at the time of such resignation. 
 (c) The Indenture Trustee or
Calculation Agent may be removed with respect to all Outstanding Notes at any time by Action of the Majority Noteholders of all Outstanding Notes, delivered to the Indenture Trustee and to the Issuer. Removal of the Indenture Trustee shall also
constitute removal of the Calculation Agent, Securities Intermediary, Note Registrar and Paying Agent hereunder, to the extent the Indenture Trustee serves in such a capacity at the time of such resignation. If an instrument of acceptance by a
successor Indenture Trustee or Calculation Agent shall not have been delivered to the Indenture Trustee within thirty (30) days after the giving of such notice of removal, the Indenture Trustee or Calculation Agent being removed may petition
any court of competent jurisdiction for the appointment of a successor Indenture Trustee or Calculation Agent. 
 (d) If at any time: 

(i) the Indenture Trustee ceases to be eligible under Section 11.8 and fails to resign after written
request therefore by the Issuer or by any Noteholder; or 

  
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 (ii) the Indenture Trustee becomes incapable of acting with respect to any
Series or Class of Notes; or 
 (iii) the Indenture Trustee is adjudged bankrupt or insolvent or a receiver of the
Indenture Trustee or of its property is appointed or any public officer takes charge or Control of the Indenture Trustee or of its property or affairs for the purpose of rehabilitation, conservation or liquidation, 

then, in any such case, (A) the Issuer may remove the Indenture Trustee, or (B) subject to Section 8.8, any Noteholder who
has been a bona fide Noteholder of a Note for at least six (6) months may, on behalf of itself and all others similarly situated, petition any court of competent jurisdiction for the removal of the Indenture Trustee and the appointment of a
successor Indenture Trustee. 
 (e) If the Indenture Trustee or Calculation Agent resigns, is removed or becomes incapable of acting with
respect to any Notes, or if a vacancy shall occur in the office of the Indenture Trustee or Calculation Agent for any cause, the Issuer, subject to the Administrative Agent’s consent, will promptly appoint a successor Indenture Trustee or
Calculation Agent. If, within one year after such resignation, removal or incapacity, or the occurrence of such vacancy, a successor Indenture Trustee or Calculation Agent is appointed by Act of the Majority Noteholders of all Outstanding Notes,
delivered to the Issuer and the retiring Indenture Trustee or Calculation Agent, the successor Indenture Trustee or Calculation Agent so appointed will, forthwith upon its acceptance of such appointment, become the successor Indenture Trustee or
Calculation Agent and supersede the successor Indenture Trustee or Calculation Agent appointed by the Issuer. If no successor Indenture Trustee or Calculation Agent shall have been so appointed by the Issuer or the Noteholders and accepted
appointment in the manner hereinafter provided, any Noteholder who has been a bona fide Noteholder of a Note for at least six (6) months may, on behalf of itself and all others similarly situated, petition any court of competent jurisdiction
for the appointment of a successor Indenture Trustee or Calculation Agent. 
 (f) The Issuer will give written notice of each resignation
and each removal of the Indenture Trustee and each appointment of a successor Indenture Trustee to each Noteholder as provided in Section 1.7 and to each Note Rating Agency that is then rating Outstanding Notes. To
facilitate delivery of such notice, upon request by the Issuer, the Note Registrar shall provide to the Issuer a list of the relevant registered Noteholders. Each notice will include the name of the successor Indenture Trustee and the address of its
principal Corporate Trust Office. 
 Section 11.10. Acceptance of Appointment by Successor. 

Every successor Indenture Trustee appointed hereunder will execute, acknowledge and deliver to the Issuer and to the predecessor Indenture
Trustee an instrument accepting such appointment, with a copy to each Note Rating Agency then rating any Outstanding Notes, and thereupon the resignation or removal of the predecessor Indenture Trustee will become effective, and such successor
Indenture Trustee, without any further act, deed or conveyance, will become vested with all the rights, powers, trusts and duties of the predecessor Indenture Trustee, 

  
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Calculation Agent, Securities Intermediary, Note Registrar and Paying Agent; but, on request of the Issuer or the successor Indenture Trustee, such predecessor Indenture Trustee will, upon
payment of its reasonable charges, if any, execute and deliver an instrument transferring to such successor Indenture Trustee all the rights, powers and trusts of the predecessor Indenture Trustee, Calculation Agent, Securities Intermediary, Note
Registrar and Paying Agent, and will duly assign, transfer and deliver to such successor Indenture Trustee all property and money held by such predecessor Indenture Trustee hereunder, subject nevertheless to its rights to payment pursuant to
Section 11.7. Upon request of any such successor Indenture Trustee, the Issuer will execute any and all instruments for more fully and certainly vesting in and confirming to such successor Indenture Trustee all such rights,
powers and trusts. 
 No successor Indenture Trustee will accept its appointment unless at the time of such acceptance such successor
Indenture Trustee will be qualified and eligible under this Article XI. 
 Section 11.11. Merger, Conversion, Consolidation or Succession
to Business. 
 Any Person into which the Indenture Trustee may be merged or converted or with which it may be consolidated, or any
Person resulting from any merger, conversion or consolidation to which the Indenture Trustee shall be a party, or any Person succeeding to all or substantially all of the corporate trust business of the Indenture Trustee, will be the successor of
the Indenture Trustee hereunder, provided that such Person shall be otherwise qualified and eligible under this Article XI, without the execution or filing of any paper or any further act on the part of any of the parties hereto. The
Indenture Trustee will give prompt written notice of such merger, conversion, consolidation or succession to the Issuer and each Note Rating Agency that is then rating Outstanding Notes. If any Notes shall have been authenticated, but not delivered,
by the Indenture Trustee then in office, any successor by merger, conversion or consolidation to such authenticating Indenture Trustee may adopt such authentication and deliver the Notes so authenticated with the same effect as if such successor
Indenture Trustee had itself authenticated such Notes. 
 Section 11.12. Appointment of Authenticating Agent. 

At any time when any of the Notes remain Outstanding the Indenture Trustee, with the approval of the Issuer, may appoint an Authenticating
Agent with respect to one or more Series or Classes of Notes which will be authorized to act on behalf of the Indenture Trustee to authenticate Notes of such Series or Classes issued upon exchange, registration of transfer or partial redemption
thereof or pursuant to Section 6.5, and Notes so authenticated will be entitled to the benefits of this Base Indenture and will be valid and obligatory for all purposes as if authenticated by the Indenture Trustee
hereunder. Wherever reference is made in this Base Indenture to the authentication and delivery of Notes by the Indenture Trustee or an Indenture Trustee Authorized Signatory or to the Indenture Trustee’s Certificate of Authentication, such
reference will be deemed to include authentication and delivery on behalf of the Indenture Trustee by an Authenticating Agent and a Certificate of Authentication executed on behalf of the Indenture Trustee by an Authenticating Agent. Each
Authenticating Agent will be acceptable to the Issuer and will at all times be a Person organized and doing business under the laws of the United States of America, any State thereof or the District of Columbia, authorized under such laws to act as
an Authenticating Agent, having a combined capital and surplus of not less than $50,000,000 and, if other than the Issuer itself, 

  
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subject to supervision or examination by a federal or state authority of the United States. If such Authenticating Agent publishes reports of condition at least annually, pursuant to law or to
the requirements of said supervising or examining authority, then for the purposes of this Section, the combined capital and surplus of such Authenticating Agent will be deemed to be its combined capital and surplus as set forth in its most recent
report of condition so published. If at any time an Authenticating Agent will cease to be eligible in accordance with the provisions of this Section, such Authenticating Agent will resign immediately in the manner and with the effect specified in
this Section. 
 Any Person into which an Authenticating Agent may be merged or converted or with which it may be consolidated, or any
Person resulting from any merger, conversion or consolidation to which such Authenticating Agent will be a party, or any Person succeeding to the corporate agency or corporate trust business of an Authenticating Agent, will continue to be an
Authenticating Agent, provided that such Person will be otherwise eligible under this Section, without the execution or filing of any paper or any further act on the part of the Indenture Trustee or the Authenticating Agent. 

An Authenticating Agent may resign at any time by giving written notice thereof to the Indenture Trustee and to the Issuer. The Indenture
Trustee may at any time terminate the agency of an Authenticating Agent by giving written notice thereof to such Authenticating Agent and to the Issuer. Upon receiving such a notice of resignation or upon such a termination, or if at any time such
Authenticating Agent ceases to be eligible in accordance with the provisions of this Section, the Indenture Trustee, with the approval of the Issuer, may appoint a successor Authenticating Agent which will be acceptable to the Issuer and will give
notice to each Noteholder as provided in Section 1.7. Any successor Authenticating Agent upon acceptance of its appointment hereunder will become vested with all the rights, powers and duties of its predecessor hereunder,
with like effect as if originally named as an Authenticating Agent. No successor Authenticating Agent will be appointed unless eligible under the provisions of this Section. 

The Indenture Trustee agrees to pay to each Authenticating Agent (other than an Authenticating Agent appointed at the request of the Issuer,
the Noteholders or the Administrator from time to time or appointed due to a change in law or other circumstance beyond the Indenture Trustee’s control) reasonable compensation for its services under this Section, out of the Indenture
Trustee’s own funds without reimbursement pursuant to this Base Indenture. The Indenture Trustee shall be the initial Authenticating Agent. 

Section 11.13. Direction to Indenture Trustee under the PC Repo Guaranty and the PMH Repo Guaranty. 

In the event the Administrative Agent, on behalf of the Noteholders, determines that the Indenture Trustee, as a beneficiary under the PC Repo
Guaranty or the PMH Repo Guaranty, as applicable, should take certain action to preserve any interests of, or release any lien or security interest of, the Noteholders under the terms of the PC Repo Guaranty or the PMH Repo Guaranty, as applicable,
with respect to the Collateral, the Noteholders acknowledge and agree that the Indenture Trustee shall only take such action as may be directed by the Administrative Agent in writing. 

  
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 Section 11.14. Representations and Covenants of the Indenture Trustee. 

The Indenture Trustee, in its individual capacity and not as Indenture Trustee, represents, warrants and covenants that: 

(a) Citibank is a national banking association duly organized and validly existing under the laws of the United States; 

(b) Citibank has full power and authority to deliver and perform this Base Indenture and has taken all necessary action to authorize the
execution, delivery and performance by it of this Base Indenture and other documents to which it is a party; 
 (c) each of this Base
Indenture and the other Transaction Documents to which Citibank is a party has been duly executed and delivered by Citibank and constitutes its legal, valid and binding obligation, enforceable in accordance with its terms; and 

(d) Citibank has a minimum aggregate capital, surplus and undivided profits of at least $500,000. 

Section 11.15. Indenture Trustee’s Application for Instructions from the Issuer. 

Any application by the Indenture Trustee for written instructions from the Issuer may, at the option of the Indenture Trustee, set forth in
writing any action proposed to be taken or omitted by the Indenture Trustee under and in accordance with this Base Indenture and the date on and/or after which such action shall be taken or such omission shall be effective, provided that such
application shall make specific reference to this Section 11.15. The Indenture Trustee shall not be liable for any action taken by, or omission of, the Indenture Trustee in accordance with a proposal included in such
application on or after the date specified in such application (which date shall not be less than five (5) Business Days after the date the Issuer actually receives such application, unless the Issuer shall have consented in writing to any
earlier date) unless prior to taking any such action (or the Closing Date in the case of an omission), the Indenture Trustee shall have received written instructions in response to such application specifying the action be taken or omitted. 

Article XII 
 Amendments
and Indenture Supplements 
 Section 12.1. Supplemental Indentures and Amendments Without Consent of Noteholders. 

(a) Unless otherwise provided in the related Indenture Supplement with respect to any amendment to this Base Indenture or such Indenture
Supplement, without the consent of the Noteholders of any Notes or any other Person but with the consent of the Issuer (evidenced by its execution of such amendment), the Indenture Trustee, the Administrator, the Servicer and the Administrative
Agent, and with prior notice to each Note Rating Agency that is then rating any 

  
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Outstanding Notes, at any time and from time to time, upon delivery of an Issuer Tax Opinion, unless such Issuer Tax Opinion is waived by (i) in the case of an amendment to such Indenture
Supplement the Series Required Noteholders of such Series or (ii) in the case of an amendment to this Base Indenture, the Series Required Noteholders of each Outstanding Series and upon delivery by the Issuer to the Indenture Trustee of an
Officer’s Certificate to the effect that the Issuer reasonably believes that such amendment could not have a material Adverse Effect and is not reasonably expected to have a material Adverse Effect on the Noteholders of the Notes at any time in
the future, may amend this Base Indenture or an Indenture Supplement for any of the following purposes: 
 (i) to evidence
the succession of another Person to the Issuer, and the assumption by any such successor of the covenants of the Issuer herein and in the Notes; 

(ii) to add to the covenants of the Issuer, or to surrender any right or power herein conferred upon the Issuer, for the
benefit of the Noteholders of the Notes of any or all Series or Classes (and if such covenants or the surrender of such right or power are to be for the benefit of less than all Series or Classes of Notes, stating that such covenants are expressly
being included or such surrenders are expressly being made solely for the benefit of one or more specified Series or Classes); 

(iii) to cure any ambiguity, to correct or supplement any provision herein which may be inconsistent with any other provision
herein, or to make any other provisions with respect to matters or questions arising under this Base Indenture; 
 (iv) to
establish any form of Note as provided in Article V, and to provide for the issuance of any Series or Class of Notes as provided in Article VI and to set forth the terms thereof, and/or to add to the rights of the Noteholders of
the Notes of any Series or Class; 
 (v) to evidence and provide for the acceptance of appointment by another corporation as
a successor Indenture Trustee hereunder; 
 (vi) to provide for additional or alternative forms of credit enhancement for any
Series or Class of Notes; 
 (vii) to comply with any regulatory, accounting or tax laws; 

(viii) to prevent the Issuer from being subject to tax on its net income as an association (or publicly traded partnership)
taxable as a corporation or a taxable mortgage pool taxable as a corporation, each for United States federal income tax purposes; 

(ix) determined by the Administrator to be reasonably necessary to maintain the rating currently assigned by the applicable
Note Rating Agency and/or to avoid such Class of Notes being placed on negative watch by such Note Rating Agency; or 

  
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 (x) as otherwise provided in the related Indenture Supplement. 

(b) Additionally, subject to the terms and conditions of Section 12.2, unless otherwise provided in the related
Indenture Supplement with respect to any amendment of this Base Indenture or an Indenture Supplement, and in addition to clauses (i) through (x) above, this Base Indenture or an Indenture Supplement may also be amended by the
Issuer, the Indenture Trustee, the Administrator, the Servicer and the Administrative Agent (in its sole and absolute discretion) without the consent of any of the Noteholders or any other Person, upon delivery of an Issuer Tax Opinion, unless such
Issuer Tax Opinion is waived by (i) in the case of an amendment to such Indenture Supplement the Series Required Noteholders of such Series or (ii) in the case of an amendment to this Base Indenture, the Series Required Noteholders of each
Outstanding Series, for the purpose of adding any provisions to, or changing in any manner or eliminating any of the provisions of, this Base Indenture or modifying in any manner the rights of the Noteholders of the Notes under this Base Indenture
or any other Transaction Document; provided, however, that (i) the Issuer shall deliver to the Indenture Trustee an Officer’s Certificate to the effect that the Issuer reasonably believes that such amendment could not have a
material Adverse Effect on any Outstanding Notes and is not reasonably expected to have a material Adverse Effect at any time in the future, and (ii) if any Outstanding Notes are then rated by a Note Rating Agency, (1) each such Note
Rating Agency confirms in writing to the Indenture Trustee that such amendment will not cause a Ratings Effect on any Outstanding Notes or (2) if the Administrator and the Administrative Agents determine in their reasonable judgment that an
applicable Note Rating Agency no longer provides such written confirmation described in the foregoing clause (1), (a) the Administrator shall provide notice of such amendment to the related Note Rating Agency and (b) each Administrative
Agent shall have provided their prior written consent to such amendment. 
 (c) Any amendment of this Base Indenture which affects the
rights, duties, immunities, obligations or liabilities of the Owner Trustee in its capacity as owner trustee under the Trust Agreement shall require the written consent of the Owner Trustee. 

(d) Any amendment of this Base Indenture which affects the rights, duties, immunities, obligations or liabilities of the Disposition Manager
hereunder shall require the written consent of the Disposition Manager. 
 Section 12.2. Supplemental Indentures and Amendments with Consent of
Noteholders. 
 In addition to any amendment permitted pursuant to Section 12.1, and subject to the terms
and provisions of each Indenture Supplement with respect to any amendment to this Base Indenture or such Indenture Supplement, with prior notice to each Note Rating Agency and the consent of the Majority Noteholders of each Series materially and
adversely affected by such amendment of this Base Indenture, including any Indenture Supplement, by Act of said Noteholders delivered to the Issuer and the Indenture Trustee, the Issuer, the Administrator, the Servicer, the Administrative Agent and
the Indenture Trustee upon delivery of an Issuer Tax Opinion (unless the Noteholders unanimously consent to waive such opinion), may enter into an amendment of this Base Indenture for the purpose of adding any provisions to, or changing in any
manner or eliminating any of the provisions of, this Base Indenture of modifying in any manner the rights of the Noteholders of the Notes of each such Series or Class under this Base Indenture 

  
 120 

 
or any Indenture Supplement; provided, however, that no such amendment will, without the consent of the Noteholder of each Outstanding Note materially and adversely affected
thereby: 
 (a) change the scheduled payment date of any payment of interest on any Note held by such Noteholder, or change a Payment Date
or Stated Maturity Date (other than the exercise of an optional extension as set forth in the related Indenture Supplement) of any Note held by such Noteholder; 

(b) reduce the Note Balance of, or the Note Interest Rate, the Step-Up Fee Rate or the Default
Supplemental Fee Rate on any Note held by such Noteholder, or change the method of computing the Note Balance or Note Interest Rate in a manner that is adverse to such Noteholder; 

(c) impair the right to institute suit for the enforcement of any payment on any Note held by such Noteholder; 

(d) reduce the percentage of Noteholders of the Outstanding Notes (or of the Outstanding Notes of any Series or Class), whose consent is
required for any such amendment, or whose consent is required for any waiver of compliance with the provisions of this Base Indenture or any Indenture Supplement or of defaults hereunder or thereunder and their consequences, provided for in this
Base Indenture or any Indenture Supplement; 
 (e) modify any of the provisions of this Section or Section 8.14,
except to increase any percentage of Noteholders required to consent to any such amendment or to provide that other provisions of this Base Indenture or any Indenture Supplement cannot be modified or waived without the consent of the Noteholder of
each Outstanding Note adversely affected thereby; 
 (f) permit the creation of any lien or other encumbrance on the Collateral that is
prior to the lien in favor of the Indenture Trustee for the benefit of the Noteholders of the Notes; 
 (g) change the method of computing
the amount of principal of, or interest on, any Note held by such Noteholder on any date; 
 (h) increase any Advance Rates in respect of
Notes held by such Noteholder in respect of Notes held by such Noteholder; or 
 (i) change, modify or waive any Scheduled Principal Payment
Amount. 
 In addition, any Indenture Supplement may be amended, supplemented or otherwise modified with the consent of each of the
Noteholders of the Notes of the related Series upon delivery of all opinions and certificates and notice to each Note Rating Agency required pursuant to the first paragraph of this Section 12.2 or as otherwise specified in
the applicable Indenture Supplement. The consent of a Person that is an Administrative Agent for one or more Series but is not an Administrative Agent for any other Series is not required for any amendment, supplement or modification to any such
other Series. 
 An amendment of this Base Indenture which changes or eliminates any covenant or other

  
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provision of this Base Indenture which has expressly been included solely for the benefit of one or more particular Series or Class of Notes, or which modifies the rights of the Noteholders
of Notes of such Series or Class with respect to such covenant or other provision, will be deemed not to affect the rights under this Base Indenture of the Noteholders of Notes of any other Series or Class. 

It will not be necessary for any Act of Noteholders under this Section to approve the particular form of any proposed amendment, but it will
be sufficient if such Act will approve the substance thereof. 
 In addition to the foregoing, each Holder of a Term Note issued on or after
the Amendment Effective Date, and any transferee thereto, by accepting such Term Note shall be deemed to have consented to, and the Issuer, the Administrator, the Servicer, the Administrative Agent and the Indenture Trustee upon prior notice to each
Note Rating Agency may enter into, any amendment, restatement, modification or supplement to this Base Indenture, an Indenture Supplement or any other Transaction Document for the purpose of adding any provisions to, or changing in any manner or
eliminating any of the provisions of, this Base Indenture or modifying in any manner the rights of the such Holders of Term Notes under this Base Indenture, any related Indenture Supplement or any other Transaction Document as may be necessary or
advisable, upon certification relating to the purpose of such amendment by the Administrator (upon which the Indenture Trustee shall be entitled to conclusively rely without liability therefore), to cure any inconsistency between this Base
Indenture, any Indenture Supplement or any other Transaction Document and any provision of the Acknowledgment Agreement or the Fannie Mae Guide, as each may be amended, restated, supplemented or otherwise modified from time to time. For the
avoidance of doubt, the consent of the VFN Noteholders and of the Holders of the Series 2018-FT1 Notes (to the extent such Notes remain Outstanding) shall be required to effect the amendments described in this
paragraph. 
 Section 12.3. Execution of Amendments. 

In executing or accepting the additional trusts created by any amendment or Indenture Supplement of this Base Indenture permitted by this
Article XII or the modifications thereby of the trusts created by this Base Indenture, the Indenture Trustee will be entitled to receive, and (subject to Section 11.1) will be fully protected in relying upon, an
Opinion of Counsel stating that the execution of such amendment or Indenture Supplement is authorized and permitted by this Base Indenture and that all conditions precedent thereto have been satisfied. No such Opinion of Counsel shall be required in
connection with any amendment or Indenture Supplement consented to by all Noteholders if all of the Noteholders have directed the Indenture Trustee in writing to execute such amendment or Indenture Supplement. The Indenture Trustee may, but will not
be obligated to, enter into any such amendment or Indenture Supplement which affects the Indenture Trustee’s own rights, duties or immunities under this Base Indenture or otherwise. 

Section 12.4. Effect of Amendments. 

Upon the execution of any amendment of this Base Indenture or any Indenture Supplement, or any supplemental indentures under this Article
XII, this Base Indenture and the related Indenture Supplement will be modified in accordance therewith with respect to each Series and Class of 

  
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Notes affected thereby, or all Notes, as the case may be, and such amendment will form a part of this Base Indenture and the related Indenture Supplement for all purposes; and every Noteholder of
Notes theretofore or thereafter authenticated and delivered hereunder will be bound thereby to the extent provided therein. 
 Section 12.5.
Reference in Notes to Indenture Supplements. 
 Notes authenticated and delivered after the execution of any amendment of this
Base Indenture or any Indenture Supplement or any supplemental indenture pursuant to this Article may, and will if required by the Indenture Trustee, bear a notation in form approved by the Indenture Trustee as to any matter provided for in such
amendment or supplemental indenture. If the Issuer so determines, new Notes so modified as to conform, in the opinion of the Indenture Trustee and the Issuer, to any such amendment or supplemental indenture may be prepared and executed by the Issuer
and authenticated and delivered by the Indenture Trustee in exchange for Outstanding Notes. 
 Section 12.6. Amendments to Appendix A

 Any amendment of Appendix A to this Base Indenture which affects the rights, duties, immunities, obligations or liabilities of
any party to this Base Indenture or to any other Transaction Document shall require the written consent of such party. 
 Article XIII

 Early Redemption of Notes 

Section 13.1. Optional Redemption. 

(a) Unless otherwise provided in the applicable Indenture Supplement for a Series or Class of Notes, the Issuer has the right, but not the
obligation, to: (i) redeem a Series or Class of Term Notes in whole or in part (so long as, in the case of any partial redemption, such redemption is funded using the proceeds of the issuance and sale of one or more new Classes of Notes as
further specified in the related Indenture Supplement or from any other cash or funds of PMC and not Collections on MSRs) on a date specified in the applicable Indenture Supplement or on any Payment Date (a “Redemption Payment
Date”) on or after the Payment Date on which the aggregate Note Balance (after giving effect to all payments, if any, on that day) of such Series or Class is reduced to less than the Redemption Percentage of the Initial Note
Balance and (ii) redeem a Series or Class of Variable Funding Notes in whole or in part on a date specified in the applicable Indenture Supplement. 

If the Issuer, at the direction of the Administrator, elects to redeem a Series or Class of Notes pursuant to this
Section 13.1, it will cause the Issuer to notify the Indenture Trustee and the Noteholders of such redemption at least five (5) days (or other times specified in the related Indenture Supplement) prior to the
Redemption Payment Date. Unless otherwise specified in the Indenture Supplement applicable to the Notes to be so redeemed, the redemption price of a Series or Class so redeemed will equal the Redemption Amount, the payment of which will be
subject to the allocations, deposits and payments sections of the related Indenture Supplement, if any. 

  
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 If the Issuer is unable to pay the Redemption Amount in full on the Redemption Payment Date,
such redemption shall be cancelled, notice of such cancelled redemption shall be sent to all Secured Parties and payments on such Series or Class of Notes will thereafter continue to be made in accordance with this Base Indenture and the
related Indenture Supplement, and the Noteholders of such Series or Class of Notes and the related Administrative Agent shall continue to hold all rights, powers and options as set forth under this Base Indenture, until the Outstanding Note
Balance of such Series or Class, plus all accrued and unpaid interest and other amounts due in respect of the Notes, is paid in full or the Stated Maturity Date occurs, whichever is earlier, subject to Article VII, Article VIII and the
allocations, deposits and payments sections of this Base Indenture and the related Indenture Supplement. 
 (b) Unless otherwise specified
in the related Indenture Supplement, if the VFN Principal Balance of any Class of VFNs has been reduced to zero, then, upon five (5) Business Days’ prior written notice to the Noteholder thereof, the Issuer may declare such
Class no longer Outstanding, in which case the Noteholder thereof shall submit such Class of Notes to the Indenture Trustee for cancellation. 

(c) The Notes of any Series or Class of Notes shall be subject to optional redemption under this Article XIII, in whole but not in
part, by the Issuer, through (i) the use of the proceeds of issuance and sale of a new Series of Notes issued hereunder, or (ii) the use of the proceeds received of any amounts funded under any Variable Funding Notes on any Business Day
after the date on which the related Revolving Period ends, and on any Business Day within five (5) days prior to the end of such Revolving Period or at other times specified in the related Indenture Supplement upon five (5) days’
prior notice to the Indenture Trustee and the Noteholders. Following issuance of the Redemption Notice by the Issuer pursuant to Section 13.2 below, the Issuer shall be required to purchase the entire aggregate Note Balance
of such Series or Class of Term Notes for the applicable Redemption Amount on the date set for such redemption (the “Redemption Date”). 

(d) The Issuer may redeem any Series or Class of Notes through (i) the use of proceeds from the issuance and sale of a new Series or
Class of Notes issued hereunder, or (ii) the use of proceeds received following a VFN Note Balance Adjustment Request, on any other Business Day specified in the related Indenture Supplement. 

(e) If necessary to avoid a Borrowing Base Deficiency, the Notes of any Series or Class of Variable Funding Notes shall be subject to
repayment by the Issuer, in whole or in part, up to the amount necessary to avoid a Borrowing Base Deficiency, using any other cash or funds of the Issuer other than Collections on the Participation Certificates (Collections for this purpose include
payments of the PMH Repurchase Price), upon one (1) Business Day’s prior notice from the Issuer to the Indenture Trustee and the related VFN Noteholders. Any such repayment pursuant to this Section 13.1(d) shall
reduce the principal balance of such Variable Funding Notes but shall not result in a reduction of any funding commitments related thereto or the Maximum VFN Principal Balance thereof (unless otherwise agreed between the Noteholders of such Variable
Funding Notes and the Issuer) and (ii) may be made on a non-pro rata basis with other Series of Variable Funding Notes. 

  
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 (f) Notwithstanding any other provision of this Base Indenture, the early redemption rights
of the Issuer set forth in this Section 13.1 are in addition to, the Issuer’s rights set forth in Section 2.01(b)(ii) to remove as Collateral the Participation Certificates and Mortgage Loans.

 Section 13.2. Notice. 

(a) Promptly after the election to exercise any optional redemption pursuant to Section 13.1, the Issuer will notify
the Indenture Trustee and each related Note Rating Agency in writing of the identity and Note Balance of the affected Series or Class of Notes to be redeemed. 

(b) Notice of redemption (each a “Redemption Notice”) will promptly be given as provided in
Section 1.7. All notices of redemption will state (i) the Series or Class of Notes to be redeemed pursuant to this Article XIII, (ii) the date on which the redemption of the Series or Class of
Notes to be redeemed pursuant to this Article will begin, which will be the Redemption Payment Date, and (iii) the redemption price for such Series or Class of Notes. 

Article XIV 

Miscellaneous 
 Section 14.1.
No Petition. 
 Each of the Indenture Trustee, the Administrative Agent, the Servicer and the Administrator, by entering into this
Base Indenture, each Noteholder, by accepting a Note and each Note Owner by accepting a Note or a beneficial interest in a Note agrees that it will not at any time prior to the date which is one year and one day, or, if longer, the applicable
preference period then in effect, after the payment in full of all the Notes, institute against the Issuer, or join in any institution against the Issuer of, any receivership, insolvency, bankruptcy or other similar proceedings, or other proceedings
under any United States federal or state bankruptcy or similar law in connection with any obligations relating to the Notes and this Base Indenture; provided, however, that nothing contained herein shall prohibit or otherwise prevent
the Indenture Trustee from filing proofs of claim in any such proceeding. 
 Section 14.2. No Recourse. 

No recourse may be taken, directly or indirectly, with respect to the obligations of the Issuer or the Indenture Trustee on the Notes or under
the Indenture or any certificate or other writing delivered in connection therewith, against (i) the Indenture Trustee or Owner Trustee in their individual capacities, (ii) any owner of a beneficial ownership interest in the Issuer or
(iii) any partner, owner, beneficiary, agent, officer, director, employee or “control person” within the meaning of the 1933 Act and the 1934 Act of the Indenture Trustee or Owner Trustee in its individual capacity, any holder of a
beneficial ownership interest in the Issuer or the Indenture Trustee or Owner Trustee or of any successor or assign of the Indenture Trustee or Owner Trustee 

  
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in its individual capacity, except as any such Person may have expressly agreed and except that any such partner, owner or beneficiary shall be fully liable, to the extent provided by applicable
law, for any unpaid consideration for stock, unpaid capital contribution or failure to pay any installment or call owing to such entity. 

Section 14.3. Tax Treatment. 

Notwithstanding anything to the contrary set forth herein, the Issuer has entered into this Base Indenture with the intention that for United
States federal, state and local income and franchise tax purposes the Notes will qualify as indebtedness secured by the Participation Certificates and the MSRs, unless retained by the Issuer or a single beneficial owner of the equity of the Issuer
for U.S. federal income tax purposes or a single affiliate of the Issuer whose ownership would cause the Notes to be treated as equity under Treasury Regulations promulgated under section 385 of the Code (each, a “Retained
Note”). The Issuer, by entering into this Base Indenture, each Noteholder, by its acceptance of a Note and each purchaser of a beneficial interest therein, by accepting such beneficial interest, agree to treat such Notes (other than any
Retained Note) as debt for United States federal, state and local income and franchise tax purposes, unless otherwise required by applicable law in a proceeding of final determination. The Indenture Trustee shall treat the Trust Estate as a security
device only. The provisions of this Base Indenture shall be construed in furtherance of the foregoing intended tax treatment. 
 Section 14.4.
Alternate Payment Provisions. 
 Notwithstanding any provision of this Base Indenture or any of the Notes to the contrary, the
Issuer, with the written consent of the Indenture Trustee and the Paying Agent, may enter into any agreement with any Noteholder of a Note providing for a method of payment or notice that is different from the methods provided for in this Base
Indenture for such payments or notices. The Issuer will furnish to the Indenture Trustee and the Paying Agent a copy of each such agreement and the Indenture Trustee and the Paying Agent will cause payments or notices, as applicable, to be made in
accordance with such agreements. 
 Section 14.5. Termination of Obligations. 

The respective obligations and responsibilities of the Indenture Trustee created hereby (other than the obligation of the Indenture Trustee to
make payments to Noteholders as hereinafter set forth) shall terminate upon satisfaction and discharge of this Base Indenture as set forth in Article VII, except with respect to the payment obligations described in
Section 14.6(b). Upon this event, the Indenture Trustee shall release, assign and convey to the Issuer or any of its designees, without recourse, representation or warranty, all of its right, title and interest in the
Collateral, whether then existing or thereafter created, all monies due or to become due and all amounts received or receivable with respect thereto (including all monies then held in any Trust Account) and all proceeds thereof, except for amounts
held by the Indenture Trustee pursuant to Section 14.6(b). The Indenture Trustee shall execute and deliver such instruments of transfer and assignment as shall be provided to it, in each case without recourse, as shall be
reasonably requested by the Issuer to vest in the Issuer or any of its designees all right, title and interest which the Indenture Trustee had in the Collateral. 

  
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 Section 14.6. Final Payment. 

(a) The Issuer shall give the Indenture Trustee at least ten (10) days’ prior written notice of the Payment Date on which the
Noteholders of any Series or Class may surrender their Notes for payment of the final payment on and cancellation of such Notes. Not later than the fifth (5th) day prior to the Payment Date
on which the final payment in respect of such Series or Class is payable to Noteholders, the Indenture Trustee or the Paying Agent shall provide notice to Noteholders of such Series or Class specifying (i) the date upon which final
payment of such Series or Class will be made upon presentation and surrender of Notes of such Series or Class at the office or offices therein designated, (ii) the amount of any such final payment and (iii) that the Record Date
otherwise applicable to such payment date is not applicable, payments being made only upon presentation and surrender of such Notes at the office or offices therein specified. The Indenture Trustee shall give such notice to the Note Registrar and
the Paying Agent at the time such notice is given to Noteholders. 
 (b) Notwithstanding a final payment to the Noteholders of any Series or
Class (or the termination of the Issuer), except as otherwise provided in this paragraph, all funds then on deposit in any Account allocated to such Noteholders shall continue to be held in trust for the benefit of such Noteholders, and the Paying
Agent or the Indenture Trustee shall pay such funds to such Noteholders upon surrender of their Notes, if such Notes are Definitive Notes. In the event that all such Noteholders shall not surrender their Notes for cancellation within six
(6) months after the date specified in the notice from the Indenture Trustee described in clause (a) above, the Indenture Trustee shall give a second (2nd) notice to the remaining
such Noteholders to surrender their Notes for cancellation and receive the final payment with respect thereto. If within one year after the second (2nd) notice all such Notes shall not have been
surrendered for cancellation, the Indenture Trustee may take appropriate steps, or may appoint an agent to take appropriate steps, to contact the remaining such Noteholders concerning surrender of their Notes, and the cost thereof (including costs
related to giving the second (2nd) notice) shall be paid out of the funds in the Collection and Funding Account. The Indenture Trustee and the Paying Agent shall pay to the Issuer any monies held
by them for the payment of principal or interest that remains unclaimed for two (2) years. After payment to the Issuer, Noteholders entitled to the money must look to the Issuer for payment as general creditors unless an applicable abandoned
property law designates another Person. 
 Section 14.7. Base Servicing Fee. 

The parties hereto acknowledge that PMC has the right to withdraw the Base Servicing Fee with respect to any Portfolio Mortgage Loan out of
collections it receives with respect to such Portfolio Mortgage Loan. 
 Section 14.8. Owner Trustee Limitation of Liability. 

It is expressly understood and agreed by the parties hereto that (a) this Base Indenture is executed and delivered by Wilmington Savings
Fund Society, FSB (“WSFS”), not individually or personally but solely as trustee of the Issuer, in the exercise of the powers and authority conferred 

  
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and vested in it, (b) each of the representations, warranties, undertakings and agreements herein made on the part of the Issuer is made and intended not as personal representations,
warranties, undertakings and agreements by WSFS but is made and intended for the purpose of binding only the Issuer, (c) nothing herein contained shall be construed as creating any liability on WSFS, individually or personally, to perform any
covenant either expressed or implied contained herein, all such liability, if any, being expressly waived by the parties hereto and by any Person claiming by, through or under the parties hereto, (d) WSFS has made no investigation as to the
accuracy or completeness of any representations or warranties made by the Issuer in this Base Indenture and (e) under no circumstances shall WSFS be personally liable for the payment of any indebtedness or expenses of the Issuer or be liable for the
breach or failure of any obligation, representation, warranty or covenant made or undertaken by the Issuer under this Base Indenture or any other related documents. 

Section 14.9. Communications with Rating Agencies. 

If the Servicer, the Administrative Agent or the Indenture Trustee shall receive any written or oral communication from any Note Rating Agency
(or any of the respective officers, directors or employees of any Note Rating Agency) with respect to the transactions contemplated hereby or under the Transaction Documents or in any way relating to the Notes, the Servicer, the Administrative Agent
and the Indenture Trustee agree to refrain from communicating with such Note Rating Agency and to promptly notify the Administrator of such communication; provided, however, that if the Servicer, the Administrative Agent or the
Indenture Trustee receives an oral communication from a Note Rating Agency, the Servicer, the Administrative Agent or the Indenture Trustee, as the case may be, is authorized to refer such Note Rating Agency to the Administrator, who will respond to
such oral communication. At the written request of the Administrator, the Servicer, the Administrative Agent and the Indenture Trustee agree to cooperate with the Administrator to provide certain information to the Administrator that may be
reasonably required by a Note Rating Agency to rate or to perform ratings surveillance on the Notes, and acknowledge and agree that the Administrator shall be permitted, in turn, to provide such information to the Note Rating Agencies via the
internet address identified therefor by the Administrator; provided, that the Servicer, the Administrative Agent and the Indenture Trustee shall only be required to provide such information that is reasonably available to such party at the
time of request. Notwithstanding any other provision of this Base Indenture or the other Transaction Documents, under no circumstances shall the Servicer, the Administrative Agent or the Indenture Trustee be required to participate in telephone
conversations or other oral communications with a Note Rating Agency, nor shall the Servicer, the Administrative Agent or the Indenture Trustee be prohibited from communicating with any nationally recognized statistical rating organization about
matters other than the Notes or the transactions contemplated hereby or by the Transaction Documents. Furthermore, the Indenture Trustee may make statements to Noteholders available on its website (as contemplated by
Section 3.5(a) hereof), and such action is not prohibited by this Section 14.9. 

Section 14.10. Authorized Representatives. 

Each individual designated as an authorized representative of the Indenture Trustee, Calculation Agent, Paying Agent and Securities
Intermediary, PMC, the Administrative Agents 

  
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and the Issuer (each, an “Authorized Representative”), is authorized to give and receive notices, requests and instructions and to deliver certificates and documents in
connection with this Base Indenture on behalf of each of the Indenture Trustee, Calculation Agent, Paying Agent, Securities Intermediary, PMC, PLS, the Administrative Agents and the Issuer, respectively, and the specimen signature for each such
Authorized Representative of the Indenture Trustee, Calculation Agent, Paying Agent, Securities Intermediary, PMC, the Administrative Agents and the Issuer initially authorized hereunder is set forth on Exhibits
C-1, C-2, C-3 and C-4, respectively. From time to time, the
Indenture Trustee, the Calculation Agent, the Paying Agent, the Securities Intermediary, PMC, PLS, the Administrative Agents and the Issuer may, by delivering to the others a revised exhibit, change the information previously given pursuant to this
Section 14.10, but each of the parties hereto shall be entitled to rely conclusively on the then current exhibit until receipt of a superseding exhibit. 

Section 14.11. Performance of the Issuer’s Duties by the Owner Trustee and the Administrator. 

(a) The parties hereto hereby acknowledge and agree (i) that certain duties of the Issuer will be performed on behalf of the Issuer by the
Administrator pursuant to the Administration Agreement and hereby acknowledge and accept the terms of such agreement as of the date hereof and (ii) except as expressly set forth herein, the Owner Trustee shall have no duty or obligation to
perform the obligations of the Issuer hereunder or to monitor the compliance of the Issuer with the terms hereof. 
 (b) Any successor to
the Owner Trustee appointed pursuant to the terms of the Trust Agreement (or any corporation into which the Owner Trustee may be merged or with which it may be consolidated, or any corporation resulting from any merger or consolidation to which the
Owner Trustee shall be a party) shall be the successor Owner Trustee under the Trust Agreement for purposes of this Base Indenture without the execution or filing of any paper, instrument or further act to be done on the part of the parties hereto.

 Section 14.12. Noteholder or Note Owner Communications with the Indenture Trustee. 

A Noteholder (if the Notes are represented by Definitive Notes) or a Note Owner (if the Notes are represented by Book-Entry Notes) may
communicate with the Indenture Trustee and give notices and make requests and demands and give directions to the Indenture Trustee through the procedures of the Depository and by notifying the Indenture Trustee and providing to the Indenture Trustee
a copy of the communication such Noteholder or Note Owner, as applicable, proposes to send. Any Note Owner must provide written certification stating that the Note Owner is a beneficial owner of a Note, together with supporting documentation such as
a trade confirmation, an account statement, a letter from a broker or dealer verifying ownership or another similar document evidencing ownership of a Note. The Indenture Trustee will not be required to take action in response to requests, demands
or directions of a Noteholder or a Note Owner, unless the Noteholder or Note Owner has offered reasonable security or indemnity reasonably satisfactory to the Indenture Trustee to protect it against the fees and expenses that it may incur in
complying with the request, demand or direction. 

  
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 Section 14.13. Third-Party Beneficiaries. 

The parties hereto hereby acknowledge and agree that the Disposition Manager shall be an express third party beneficiary of this Indenture.

 [Signature Pages Follow] 

  
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 IN WITNESS WHEREOF, the parties hereto have caused this Base Indenture to be duly executed
as of the day and year first above written. 
  

			
	PMT ISSUER TRUST—FMSR, as Issuer
	
	By: Wilmington Savings Fund Society FSB, not in its individual capacity but solely as Owner Trustee

 
			
		
	By:	 	 

 
			
		
	Name:	 	 

 
			
		
	Title:	 	 

  
 131 

 
			
	CITIBANK, N.A., as Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary and not in its individual capacity

			
		
	By:	 	 

 
			
		
	Name:	 	 

 
			
		
	Title:	 	 

  
 132 

 
			
	 PENNYMAC CORP.,
 as Servicer
and as Administrator

 
			
		
	By:	 	 

 
			
		
	Name:	 	 

 
			
		
	Title:	 	 

  
 133 

 
			
	CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC, as Administrative Agent

 
			
		
	By:	 	 

 
			
		
	Name:	 	 

 
			
		
	Title:	 	 

  
 134 

 Schedule 1 

Participation Certificates Schedule 

Participation Certificate, dated as of December 20, 2017, evidencing a participation interest granted to the Indenture Trustee in the Retained MSR Excess
Spread, as more particularly described in the Retained Excess Spread Participation Agreement (the “Retained MSR Excess Spread PC”). 

Participation Certificate, dated as of December 20, 2017, evidencing a participation interest granted to the Indenture Trustee in the Sold MSR Excess
Spread, as more particularly described in the Excess Spread Participation Agreement (the “Sold MSR Excess Spread PC”). 

  
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 Schedule 2 

Participation Agreements Schedule 
 Third
Amended and Restated Master Spread Acquisition and MSR Servicing Agreement, dated as of December 20, 2017 between PennyMac Corp., as seller, and PennyMac Holdings, LLC, as purchaser (the “Excess Spread Participation
Agreement”). 
 Retained MSR Excess Spread Participation Agreement, dated as of December 20, 2017 between PennyMac Corp., as company, and
PennyMac Corp., as the Initial Participant (the “Retained MSR Excess Spread Participation Agreement”). 

  
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 Schedule 3 

Eligible Securities Schedule 

[To be provided electronically, if any] 

  
 137 

 Schedule 4 

Required Information Regarding Mortgage Loans 

[On file with the Administrative Agent] 

  
 138 

 Schedule 5 

Wire Instructions 
  

			
	TRANSACTION PARTIES:
	
	If to PennyMac Corp.:
	Name of Bank:	  	City National Bank
	ABA Number of Bank:	  	122016066
	Name of Account:	  	PennyMac Corp. Operating Account
	Account Number at Bank:	  	013659486
	
	If to the Credit Suisse First Boston Mortgage Capital LLC, as Administrative Agent:
	Name of Bank:	  	BNY Mellon
	ABA Number of Bank:	  	021000018
	Name of Account:	  	CSFB Mortgage Capital
	Account Number:	  	8901149543
	
	If to the Owner Trustee:
	Name of Bank:	  	Wells Fargo Bank, N.A.
	ABA Number of Bank:	  	121000248
	Account Number at Bank:	  	2000003496376
	FFC:	  	CH129352-0 PMT Issuer Trust
	
	TRUST ACCOUNTS:
	
	If to the Collection and Funding Account:
	Name of Bank:	  	Citibank, N.A.
	ABA Number of Bank:	  	021-000-089
	Account Number at Bank:	  	3617-2242
	Account Name:	  	SF Incoming Wire Account
	Ref:	  	A/C 119463 PMAC17FMSR COLLECTION AND FUNDING AC
	
	If to the Note Payment Account:
	Name of Bank:	  	Citibank, N.A.
	ABA Number of Bank:	  	021-000-089
	Account Number at Bank:	  	3617-2242
	Account Name:	  	SF Incoming Wire Account
	Ref:	  	A/C 119464 PMAC17FMSR NOTE PAYMENT AC
	
	If to the Expense Reserve Account:
	Name of Bank:	  	Citibank, N.A.
	ABA Number of Bank:	  	021-000-089
	Account Number at Bank:	  	3617-2242

  
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	Account Name:	  	SF Incoming Wire Account
	Ref:	  	A/C 119466 PMAC17FMSR EXPENSE RESERVE AC
	
	If to the Eligible Securities Account:
	Name of Bank:	  	Citibank, N.A.
	ABA Number of Bank:	  	021-000-089
	Account Number at Bank:	  	3617-2242
	Account Name:	  	SF Incoming Wire Account
	Ref:	  	A/C 119471 PMAC17FMSR Eligible Securities Account

  
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 APPENDIX A 

DEFINED TERMS 

“1933 Act” means the Securities Act of 1933. 

“1934 Act” means the Securities Exchange Act of 1934. 

“Accepted Servicing Practices” means, with respect to any Mortgage Loan, 

(i) 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, and (ii) those practices required from time to time by Fannie Mae. 

“Account Bank” means Bank of America, N.A., and any successor thereto in such capacity. 

“Acknowledgment Agreement” means collectively, (i) the Second Amended and Restated Acknowledgment Agreement, dated as of
March 30, 2021, by and among Fannie Mae, PMC, PMH, PMT and the Indenture Trustee, and (ii) the Subordination of Interest Agreement. 

“Act” when used with respect to any Noteholder, has the meaning set forth in Section 1.5 of the Base Indenture. 

“Act of Insolvency” means, with respect to any Person or its Affiliates, (i) the filing of a petition, commencing, or
authorizing the commencement of any case or proceeding, or the voluntary joining of any case or proceeding under any bankruptcy, insolvency, reorganization, liquidation, dissolution or similar law relating to the protection of creditors, or
suffering any such petition or proceeding to be commenced by another which is consented to, not timely contested or results in entry of an order for relief; (ii) the seeking of the appointment of a receiver, trustee, custodian or similar
official for such party or an Affiliate or any substantial part of the property of either; (iii) the appointment of a receiver, conservator, or manager for such party or an Affiliate by any governmental agency or authority having the
jurisdiction to do so; (iv) the making or offering by such party or an Affiliate of a composition with its creditors or a general assignment for the benefit of creditors; (v) the admission by such party or an Affiliate of such party of its
inability to pay its debts or discharge its obligations as they become due or mature; or (vi) that any governmental authority or agency or any person, agency or entity acting or purporting to act under governmental authority shall have taken
any action to condemn, seize or appropriate, or to assume custody or control of, all or any substantial part of the property of such party or of any of its Affiliates, or shall have taken any action to displace the management of such party or of any
of its Affiliates or to curtail its authority in the conduct of the business of such party or of any of its Affiliates. 

“Action” when used with respect to any Noteholder, has the meaning set forth in Section 1.5 of the Base Indenture. 

“Activation Notice” has the meaning set forth in the Dedicated Account Control Agreement. 

  
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 “Additional Note Payment” means, for each Series of Notes, the meaning as
specified in the related Indenture Supplement, if specified therein. 
 “Administration Agreement” means the Administration
Agreement, dated as of the Closing Date, by and between the Issuer and the Administrator. 
 “Administrative Agent” means
(a) initially, CSFB or any Affiliate of the foregoing or any successor thereto in respect of the Series of Notes for which it is designated as an Administrative Agent therefor in the related Indenture Supplement, and (b) in respect of any
Series, the Person(s) specified in the related Indenture Supplement. Unless the context indicates otherwise in any Indenture Supplement for such Indenture Supplement, each reference to the “Administrative Agent” herein or in any other
Transaction Document shall be deemed to constitute a collective reference to each Person that is an Administrative Agent. If (x) any Person that is an Administrative Agent resigns as an Administrative Agent in respect of all Series for which it
was designated as the Administrative Agent or (y) all of the Notes in respect of each Series for which any Person was designated as the Administrative Agent are repaid or redeemed in full, such Person shall cease to be an “Administrative
Agent” for purposes hereof and each other Transaction Document. 
 “Administrative Expenses” means any amounts due
from or accrued for the account of the Issuer with respect to any period for any administrative expenses incurred by the Issuer, including (i) to any accountants, agents, counsel and other advisors of the Issuer (other than the Owner Trustee)
for reasonable and customary fees and expenses; (ii) to any other person in respect of any governmental fee, charge or tax; (iii) to any other Person (other than the Owner Trustee) in respect of any other fees or expenses permitted under
this Base Indenture (including indemnities) and the documents delivered pursuant to or in connection with this Base Indenture and the Notes; (iv) any and all fees and expenses of the Issuer incurred in connection with its entry into and the
performance of its obligations under any of the agreements contemplated by this Base Indenture; (v) the orderly winding up of the Issuer following the cessation of the transactions contemplated by this Base Indenture; and (vi) any and all other
reasonable and customary fees and expenses incurred by the Issuer in connection with the transactions contemplated by this Base Indenture, but not in duplication of any amounts specifically provided for in respect of the Indenture Trustee, the Owner
Trustee, the Administrator or any VFN Noteholder. 
 “Administrator” means PMC, in its capacity as the Administrator on
behalf of the Issuer, and any successor to PMC in such capacity. 
 “Administrator’s Calculation Report” has the
meaning set forth in Section 3.1(a) of the Base Indenture. 
 “Advance Reimbursement Amount”
means any amount which the Servicer collects on a Mortgage Loan, withdraws from a custodial account or receives from any successor servicer or Fannie Mae pursuant to the Fannie Mae Guide, as reimbursement for advances in its capacity as Servicer
with respect to Fannie Mae MBS. 

  
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 “Advance Rate” means, with respect to any Series of Notes, and for any
Class within such Series, if applicable, the percentage specified as its “Advance Rate” in the Indenture Supplement for such Series. 

“Advance Rate Trigger Event” means the occurrence of an Advance Rate Trigger 1 Event or an Advance Trigger 2 Event. 

“Advance Rate Trigger 1 Event” means the occurrence of any of the following: 

(a) the Servicer SDQ Rate exceeds 2.00% over three (3) consecutive months in a quarter; 

(b) Net Earnings are negative for two (2) consecutive calendar quarters; or 

(c) a decline in the Lender Adjusted Net Worth of 25% over a single quarter. “Advance Rate Trigger 2 Event”
means the occurrence of any of the following: 
 (a) the Servicer SDQ Rate exceeds 4.00% over three (3) consecutive
months in a quarter; 
 (b) Net Earnings are negative for four (4) consecutive quarters and there is a decline in the
Lender Adjusted Net Worth of 30% or more during the same period; 
 (c) Fannie Mae issues a PIP and the PIP is not remedied
within six (6) months; or 
 (d) a decline in the Lender Adjusted Net Worth of 40% over two (2) consecutive quarters.

 “Adverse Claim” means a lien, security interest, charge, encumbrance or other right or claim of any Person (other than
(A) the liens created in favor of the Secured Parties or assigned to the Secured Parties by (i) this Base Indenture, (ii) the PC Repurchase Agreement or (iii) any other Transaction Document, (B) the rights of Fannie Mae
under the Fannie Mae Lender Contract) or (C) the Owner Trustee Lien. 
 “Adverse Effect” when used in this Base
Indenture with respect to any Series or Class of Notes and any event, means that such event is reasonably likely, at the time of its occurrence, to (i) result in the occurrence of an Event of Default relating to such Series or
Class of Notes, (ii) materially adversely affect (A) the amount of funds available to be paid to the Noteholders of such Series or Class of Notes pursuant to this Base Indenture, (B) the timing of such payments or
(C) the rights or interests of the Noteholders of such Series or Class, (iii) materially adversely affect the Security Interest of the Indenture Trustee for the benefit of the Secured Parties in the Collateral unless otherwise permitted by this
Base Indenture, or (iv) materially adversely affect the collectability of the Collateral. 

  
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 “Affiliate” means, with respect to any specified Person, any other Person
directly or indirectly Controlling or Controlled by or under direct or indirect common Control with such specified Person; provided, however, that in respect of PMC, PMH or Guarantor, the term “Affiliate” shall include only
Guarantor and its wholly owned subsidiaries, and in respect of PLS, the term “Affiliate” shall include only Private National Mortgage Acceptance Company, LLC and its wholly owned subsidiaries. 

“Amendment Effective Date” means March 30, 2021. 

“Ancillary Income” means all income derived from a Mortgage Loan (other than payments or other collections in respect of
principal, interest, escrow payments and prepayment penalties attributable to such Mortgage Loan) and to which the Servicer or any Subservicer, as the servicer or subservicer of the Mortgage Loan, is entitled in accordance with the Fannie Mae Lender
Contract, including, (i) all late charges, fees received with respect to checks or bank drafts returned by the related bank for insufficient funds, assumption fees, optional insurance administrative fees, all interest, income, or credit on
funds deposited in the escrow accounts and custodial accounts or other receipts on or with respect to such Mortgage Loan (subject to applicable law and the Fannie Mae Lender Contract), (ii) reconveyance fees, subordination fees, speedpay fees,
mortgage pay on the web fees, automatic clearing house fees, demand statement fees, modification fees, if any, and other similar types of fees arising from or in connection with any Mortgage Loan to the extent not otherwise payable by the mortgagor
under applicable law or pursuant to the terms of the related Mortgage Note, and (iii) if and to the extent that any FHA Loans, USDA Loans or VA Loans are Subject Mortgages, any incentive fees payable by FHA under the applicable FHA Mortgage
Insurance Contract, by USDA under the USDA Loan Guarantee Document, or by VA under the applicable VA Loan Guaranty Agreement, as applicable, to the Servicer or any Subservicer, as servicer or subservicer of the Mortgage Loans, including incentive
amounts payable in connection with Mortgage Loan modifications and other loss mitigation activities. 
 “Applicable Law”
has the meaning set forth in Section 4.1 of the Base Indenture. “Applicable Rating” means, for each Class of Notes, the rating(s) specified as such for such Class in the related Indenture Supplement, if applicable.
Only those rating(s) specified for any Class of Notes that are made at the request of Issuer shall be applicable for purposes of this Base Indenture. 

“Appraised Market Value” means, for any MSR, the appraised market value established in accordance with the Fannie Mae
Servicing Guide. 
 “Asset” means (a) the Participation Certificates and (b) the related MSRs, in each case, sold
or pledged to secure the Obligations under the PC Repurchase Agreement. 
 “Asset Base” means for any date of
determination, the product of (1) the Purchase Price Percentage and (2) the then-current Market Value. 
 “Asset
File” means the documents described in Section 2.2 of the Base Indenture pertaining to a particular Participation Certificate. 

  
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 “Asset Schedule” means a schedule, in the form attached to the PC
Repurchase Agreement, listing as of the date of such schedule the applicable Participation Certificate and the applicable Participation Agreement, as such schedule shall be updated from time to time in accordance with Section 2.02 of the PC
Repurchase Agreement. 
 “Authenticating Agent” means any Person authorized by the Indenture Trustee to authenticate Notes
under Section 11.12 of the Base Indenture. 
 “Authorized Signatory” means, with respect to any entity, each Person
duly authorized to act as a signatory of such entity at the time such Person signs on behalf of such entity. 
 “Available
Funds” means, with respect to: 
 (i) any Interim Payment Date, (A) all Collections on the Participation
Certificates or the Eligible Securities received during the related Collection Period and on deposit in the Collection and Funding Account, plus (B) any other funds of the Issuer that the Issuer (or the Administrator on behalf of the Issuer)
identifies to the Indenture Trustee to be treated as “Available Funds” for such Interim Payment Date (including any cash amounts that are on deposit in the Collection and Funding Account which the Administrator has instructed the Indenture
Trustee to apply in accordance with Section 4.4.(a)(iii) of the Base Indenture); and 
 (ii) any
Payment Date, (A) all Collections on the Participation Certificates or the Eligible Securities received during the related Collection Period and on deposit in the Collection and Funding Account, plus (B) any income from Permitted
Investments in Trust Accounts that have been established for the benefit of all Series of Notes, plus (C) any other funds of the Issuer that the Issuer (or the Administrator on behalf of the Issuer) identifies to the Indenture Trustee to be
treated as “Available Funds” for such Payment Date (including any cash amounts that are on deposit in the Collection and Funding Account which the Administrator has instructed the Indenture Trustee to apply in accordance with
Section 4.5(a)(1)(ix) of the Base Indenture) plus (D) any amounts released from the Series Reserve Account under the Series 2017-VF1 Indenture Supplement. 

“Bankruptcy Code” means the Bankruptcy Reform Act of 1978, 11 U.S.C. §§ 101 et seq. 

“Base Indenture” means the Base Indenture, dated December 20, 2017, among the 

Issuer, Citibank, N.A., as indenture trustee, as calculation agent, as paying agent and as securities intermediary, PMC, as Administrator and
as Servicer and the Administrative Agent, including the schedules and exhibits thereto. 
 “Base Servicing Fee” means, for
any Mortgage Loan, a monthly fee not greater than 12.5 basis points of the unpaid principal balance of the Mortgage Loans. 

  
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 “Base Servicing Fee Rate” means, for the Sold MSR Excess Spread PC, the
“Base Servicing Fee Rate” set forth as such in the Excess Spread Participation Agreement. For the Retained MSR Excess Spread PC, the “Base Servicing Fee Rate” set forth as such in the Retained Excess Spread Participation
Agreement. For any other Participation Certificate, as set forth in the related Participation Agreement. 
 “Benchmark Transition
Event” has the meaning set forth in the related Indenture Supplement, if applicable. 
 “Benefit Plan Investor”
has the meaning set forth in Section 3.9(b) of the Trust Agreement. 
 “Book-Entry Notes” means a note registered in
the name of the Depository or its nominee, ownership of which is reflected on the books of the Depository or on the books of a Person maintaining an account with such Depository (directly or as an indirect participant in accordance with the rules of
such Depository); provided, that after the occurrence of a condition whereupon Definitive Notes are to be issued to Note Owners, such Book-Entry Notes shall no longer be “Book-Entry Notes”. 

“Borrowing Base” means, as of any date of determination, an amount equal to the aggregate Collateral Value (as calculated
using clause (b) of the definition of Market Value Percentage) of the Portfolio. 
 “Borrowing Base Deficiency” means
the positive difference, if any, of: 
 (i) the aggregate VFN Principal Balances of all Outstanding Series of VFNs; and 

(ii) the sum of: 
 (a) the
product of: (1) (A) the more recent of the Borrowing Base on the Borrowing Base Determination Date preceding such date of determination, or the Interim Borrowing Base on the Interim Borrowing Base Determination Date preceding such date of
determination minus (B) the aggregate of the Term Note Series Invested Amounts, and (2) the Weighted Average Advance Rate in respect of all Outstanding Series of VFNs; and 

(b) the Market Value of any Eligible Securities that have been transferred and delivered to the Issuer pursuant to the PC Repurchase Agreement
prior to the Payment Date or Interim Borrowing Base Payment Date, as applicable; provided, however, that aggregate Market Value of all Eligible Securities and all Pledged Margin Securities, together, cannot exceed an amount equal to
15% of the Borrowing Base as of such date of determination; provided, further, that any Eligible Security shall only be included for purposes of determining the Borrowing Base Deficiency for a maximum of three (3) consecutive
months; 

  
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 (c) any cash amounts that are on deposit in the Collection and Funding Account that were
deposited by the Administrator prior to the Payment Date or Interim Borrowing Base Payment Date, as applicable, which the Administrator has instructed the Indenture Trustee to reserve in the Collection and Funding Account pursuant to Sections
4.4(a)(iii) and Section 4.5(a)(1)(vii) of the Base Indenture; and 
 (d) the Market Value of any Pledged Margin Securities that have
been pledged to the Issuer pursuant to the PC Repurchase Agreement prior to the Payment Date or Interim Borrowing Base Payment Date, as applicable; provided, however, that aggregate Market Value of all Pledged Margin Securities and all
Eligible Securities, together, cannot exceed an amount equal to 15% of the Borrowing Base as of such date of determination; provided, further, that any Pledged Margin Securities shall only be included for purposes of determining the
Borrowing Base Deficiency for a maximum of three (3) consecutive months. 
 “Borrowing Base Determination Date” means,
with respect to any Payment Date, the Business Day of the month of such Payment Date on which the MSR Valuation Agent performs its Market Value Report based on the information contained in the MSR Monthly Report. 

“Borrowing Capacities” means, for any Outstanding Series of VFNs on any date, the difference between (i) the related
Maximum VFN Principal Balance on such date and (ii) the related VFN Principal Balance on such date. 
 “Business Day”
means, for any Class of Notes, any day other than (i) a Saturday or Sunday or (ii) any other day on which (x) national banking associations or state banking institutions in New York, New York, the State of California, the State
of Texas or the city and state where the Corporate Trust Office is located or (y) the Federal Reserve Bank of New York are authorized or obligated by law, executive order or governmental decree to be closed. 

“Buyer Parties” means any or all of the VFN Repo Buyers, the Administrative Agent, the Indenture Trustee, the Owner Trustee
and any other parties acting on behalf of the Issuer. 
 “Calculation Agent” means the same Person who serves at any time
as the Indenture Trustee, or an Affiliate of such Person, as calculation agent pursuant to the terms of this Base Indenture. 

“Capital Lease Obligations” means, for any Person, all obligations of such Person to pay rent or other amounts under a lease
of (or other agreement conveying the right to use) Property to the extent such obligations are required to be classified and accounted for as a capital lease on a balance sheet of such Person under GAAP, and, for purposes of the PC Repurchase
Agreement, the amount of such obligations shall be the capitalized amount thereof, determined in accordance with GAAP. 
 “CARES
Act” means the Coronavirus Aid, Relief, and Economic Security Act of 2020. 
 “Cash Equivalents” has the meaning
set forth in Section 1 of the PC Repo Pricing Side Letter. 

  
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 “Certificate of Authentication” means the certificate of the Indenture
Trustee or the alternative certificate of the Authenticating Agent, substantially in the form attached to the Base Indenture in Exhibit D. 

“Certificate of Trust” means the Certificate of Trust filed for the Trust on November 22, 2017, pursuant to the Original
Trust Agreement and Section 3810(a) of the Statutory Trust Statute. 
 “Certificate Register” and “Certificate
Registrar” means the register mentioned and the registrar appointed pursuant to Section 3.3 of the Trust Agreement. 

“Certificateholder” has the meaning set forth in the Trust Agreement. 

“Change in Control” means: 

(A) any transaction or event as a result of which Guarantor ceases to own, beneficially or of record, through one of its
wholly-owned Subsidiaries, more than 50% of the stock of PMC, except with respect to an initial public offering of PMC’s common stock on a U.S. national securities exchange; 

(B) the sale, transfer, or other disposition of all or substantially all of PMC’s assets (excluding any such action taken
in connection with any securitization transaction); or 
 (C) the consummation of a merger or consolidation of PMC with or
into another entity or any other corporate reorganization, if more than 50% of the combined voting power of the continuing or surviving entity’s stock outstanding immediately after such merger, consolidation or such other reorganization is
owned by Persons who were not stockholders of PMC immediately prior to such merger, consolidation or other reorganization. 

“Citibank” means Citibank, N.A. and any successor or assign thereto. 

“Class” means, with respect to any Notes, the class designation assigned to such Note in the related Indenture Supplement. A
Series issued in one class, with no class designation in the related Indenture Supplement, may be referred to herein as a “Class”. 

“Class Invested Amount” means, as of any date of determination: 

(i) for any Class of a Series of Variable Funding Notes, an amount equal to: (i) the sum of (A) the outstanding
Note Balance of such Class (as reduced by (1) the Scheduled Principal Payment Amount actually paid on such Class on such Payment Date, if applicable, and (2) the Early Amortization Event Payment Amount actually paid on such
Class on such Payment Date, if applicable), plus (B) the aggregate outstanding Note Balances of all Classes of Variable Funding Notes within the same Series of Variable 

  
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Funding Notes that are senior to or pari passu with such Class on such date (as reduced by (1) the Scheduled Principal Payment Amounts actually paid on such Classes on such
Payment Date, if applicable, and (2) the Early Amortization Event Payment Amounts actually paid on such Classes on such Payment Date, if applicable) and not otherwise captured in clause (A), divided by (ii) the Advance
Rate in respect of such Class of Variable Funding Notes; and 
 (ii) for any Class of a Series of Term Notes, an
amount equal to: (i) the sum of (A) the outstanding the Note Balance of such Class (as reduced by (1) the Scheduled Principal Payment Amount actually paid on such Class on such Payment Date, if applicable, and (2) the Early
Amortization Event Payment Amount actually paid on such Class on such Payment Date, if applicable), plus (B) the aggregate outstanding Note Balances of all Classes of Term Notes within the same Series of Term Notes that are senior
to or pari passu with such Class on such date (as reduced by (1) the Scheduled Principal Payment Amounts actually paid on such Classes on such Payment Date, if applicable, and (2) the Early Amortization Event Payment Amounts
actually paid on such Classes on such Payment Date, if applicable) and not otherwise captured in clause (A), divided by (ii) the highest Advance Rate in respect of such Class of Term Notes. 

“Clearing Corporation” has the meaning set forth in Section 8-102(a)(5) of the
UCC. 
 “Clearstream” means Clearstream Banking, S.A., and any successor thereto. “Closing Date” means
December 20, 2017. 
 “Code” means the Internal Revenue Code of 1986. 

“Collateral” has the meaning set forth in the Granting Clause of the Base Indenture. 

“Collateral Value” means, as of the applicable Determination Date, the difference between (i) the product of
(A) the related Market Value Percentage and (B) the aggregate unpaid principal balance of the Mortgage Loans and (ii) the Stop-Loss Cap. 

“Collection and Funding Account” means the non-interest bearing trust account or
accounts, each of which shall be an Eligible Account, established and maintained pursuant to Sections 4.1 and 4.7 of the Base Indenture and entitled “Citibank, N.A., as Indenture Trustee for the PMT ISSUER TRUST—FMSR Collateralized Notes,
Collection and Funding Account” or such of the foregoing that can be reflected on the account systems of the institution maintaining such account. 

“Collection Period” means, (i) for the first Interim Payment Date or Payment Date, the period beginning on the Cut-off Date and ending at the end of the day before the Determination Date for such Interim Payment Date or Payment Date, and (ii) for each subsequent Interim Payment Date or Payment Date, the period beginning
at the opening of business on the most recent preceding Determination Date and ending as of the close of business on the day before the Determination Date for such Interim Payment Date or Payment Date. 

  
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 “Collection Policy” means PMC’s policies regarding Collections and
remittance in accordance with the provisions of the PC Repurchase Agreement and the Servicing Contracts and shall include the charging and collection of fees for servicing functions, including, without limitation, the charging of late fees,
assumption fees, modification fees and other clerical or administrative fees in the ordinary course of servicing. 

“Collections” means (i) any amounts received by PMC relating to the Participation Certificates, including, any amounts
received by PMC and payable to the Issuer under the PC Repurchase Agreement, the PC Repo Guaranty, the PMH Repurchase Agreement or the PMH Repo Guaranty and (ii) any amounts received by the Indenture Trustee relating to the Eligible Securities;
provided, however, that Collections shall not include amounts related to the Base Servicing Fee, Ancillary Income or the Advance Reimbursement Amounts. 

“Commitment Period” means the period from and including the Closing Date to but not including the Termination Date or such
earlier date on which the obligations of the Issuer, as Repo Buyer, under the PC Repurchase Agreement shall have terminated pursuant to the terms thereof. 

“Confidential Information” has the meaning set forth in Section 10.10(b) of the PC Repurchase Agreement. 

“Consideration” means, (a) in the context of delivery thereof by the Issuer, as Repo Buyer, any or all of (i) the
Owner Trust Certificate, including increases in the value thereof pursuant to Sections 4.4(b) or 4.5(e) of the Base Indenture, (ii) one or more Variable Funding Notes and (iii) cash, and (b) in the context of delivery thereof by PMC,
as Repo Seller, in satisfaction of a Margin Deficit, any or all of (i) a reduction in the value of the Owner Trust Certificate pursuant to the terms of the PC Repurchase Agreement and (ii) any Margin Call Payment. 

“Control,” “Controlling” or “Controlled” means possession of the power to direct or cause
the direction of the management or policies of a Person through the right to exercise voting power or by contract, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise. 

“Corporate Trust Office” means, for each Series of Notes, as specified in the related Indenture Supplement. 

“CSFB” has the meaning set forth in the Preamble of the Base Indenture. 

“Cumulative Default Supplemental Fee Shortfall Amount” means, for each Payment Date and each Class of Notes, any portion
of the Default Supplemental Fee (including the Cumulative Default Supplemental Fee Shortfall Amount for that Class for a previous Payment Date as set forth in the definition of “Default Supplemental Fee”) that has not been paid, if
any, plus accrued and unpaid interest at the applicable Note Interest Rate plus the Default Supplemental Fee Rate on such shortfall from the Payment Date on which the shortfall first occurred through but excluding the current Payment Date. 

  
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 “Cumulative Interest Shortfall Amount” means, for each Payment Date and
each Class of Notes, equal to any portion of the Interest Payment Amount (calculated pursuant to the provisions of the Base Indenture) for that Class for all previous Payment Dates that has not been paid, if any, plus accrued and unpaid
interest at the applicable Note Interest Rate plus the Cumulative Interest Shortfall Amount Rate on each such shortfall from the Payment Date on which such shortfall first occurred to but excluding the current Payment Date. 

“Cumulative Interest Shortfall Amount Rate” has the meaning set forth in the related Indenture Supplement. 

“Cumulative Step-Up Fee Shortfall Amount” means, for each Payment Date and each
Class of Notes, any portion of the Step-Up Fee (including the Cumulative Step-Up Fee Shortfall Amount for that Class for a previous Payment Date as set forth
in the definition of “Step-Up Fee”) that has not been paid, plus accrued and unpaid interest at the applicable Note Interest Rate and plus the Step-Up Fee Rate
on such shortfall from the Payment Date on which the shortfall first occurred through the current Payment Date. 
 “Current Amounts
Due” means the sum of: (A) all reasonable internal costs and actual expenses related to the following actions (if taken): (1) the determination of the Appraised Market Value; (2) stabilizing the servicing of the Subject Mortgages;
(3) the sale and transfer of the Servicing Rights; and (4) any action brought by Fannie Mae before a court of its choice for leave to interplead any Distributable Funds; and (B) all actual amounts due under the Fannie Mae Lender
Contract to Fannie Mae on the Servicer’s Fannie Mae Portfolio because of any of the following up to and including the date Fannie Mae terminates the Servicing Rights: (1) any breach of selling representations, warranties or covenants made
or assumed by the Servicer; (2) any breach of any servicing obligations by the Servicer; (3) any actual unperformed obligations under the regular servicing option or other recourse agreements; and (4) any other obligations the
Servicer currently owes to Fannie Mae. If the Subject Mortgages make up less than the Servicer’s Fannie Mae Portfolio, the costs and expenses referred to in clause (A) above include all sums related to the Servicer’s Fannie Mae
Portfolio through the end of the 24-month period following the date, if any, Fannie Mae terminates the Servicing Rights. 

“Custodian” has the meaning set forth in Section 2.3 of the Base Indenture.
“Cut-off Date” means the Closing Date. 
 “Dedicated Account”
means the demand deposit account PennyMac Loan Services, LLC on behalf of PennyMac Corp., in trust for PMT ISSUER TRUST—FMSR –Dedicated Account, which account has been established by PLS, PMC, the Indenture Trustee, as secured party, the
Issuer, the Guarantor and the Account Bank for the benefit of the Indenture Trustee at the Account Bank. 
 “Dedicated Account
Control Agreement” means, the Deposit Account Control Agreement, dated as of December 20, 2017, among PMC, the Issuer, the Indenture Trustee, PLS, the Guarantor and the Account Bank, pursuant to which to the Dedicated Account is
established. 

  
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 “Dedicated Account Pledge Agreement” means, the Dedicated Account Pledge
Agreement, dated as of December 20, 2017, by PLS in favor of Issuer. 
 “Default” means an event, condition or default
that, with the giving of notice, the passage of time, or both, would constitute an Event of Default. 
 “Default Period”
means the period of time that begins upon the occurrence of an Event of Default and ends on the earlier to occur of (i) the date on which the Event of Default has been waived or cured pursuant to the terms of the Base Indenture or (ii) the
date on which all Classes or Series of Notes not waiving such Event of Default are paid or redeemed in full in accordance with the terms of the Base Indenture. 

“Default Supplemental Fee” has the meaning set forth in the related Indenture Supplement, if applicable. 

“Default Supplemental Fee Rate” has the meaning set forth in the related Indenture Supplement, if applicable. 

“Definitive Note” means a Note issued in definitive, fully registered form evidenced by a physical Note, substantially in the
form of one or more of the Definitive Notes attached as Exhibit A-2 and Exhibit A-4 to the Base Indenture. 

“Depository” means initially, The Depository Trust Company, the nominee of which is Cede & Co., and any permitted
successor depository. The Depository shall at all times be a Clearing Corporation. 
 “Depository Agreement” means, for any
Series or Class of Book-Entry Notes, the agreement among the Issuer, the Indenture Trustee and the Depository, dated as of the related Issuance Date, relating to such Notes. 

“Depository Participant” means a broker, dealer, bank or other financial institution or other Person for whom from time to
time the Depository effects book-entry transfers and pledges of securities deposited with the Depository. 
 “Designated Transaction
Representative” has the meaning set forth in the related Indenture Supplement, if applicable. 
 “Determination
Date” means, in respect of any Payment Date or Interim Payment Date, three (3) Business Days before such Payment Date or Interim Payment Date. 

“Determination Date Report” means a report delivered by the Administrator as described in Section 3.2(a) of the Base
Indenture, which shall be delivered in the form of one or more electronic files. 
 “Disposition Management Agreement”
means the Disposition Management Agreement, dated as of April 25, 2018, by and among the Disposition Manager, the Indenture Trustee, PMC and the Administrative Agent. 

  
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 “Disposition Manager” means Pentalpha Surveillance LLC. 

“Disposition Manager Fee” shall have the meaning set forth in the Disposition Management Agreement. 

“Distributable Funds” means any Net Proceeds available for distribution. 

“Distribution Compliance Period” means, in respect of any Regulation S Global Note or Regulation S Definitive Note, the forty
(40) consecutive days beginning on and including the later of (a) the day on which any Notes represented thereby are offered to persons other than distributors (as defined in Regulation S under the 1933 Act) pursuant to Regulation S and
(b) the Issuance Date for such Notes. 
 “Dollars” and “$” means dollars in lawful currency of the
United States of America. 
 “DTC” has the meaning set forth in Section 5.4(a) of the Base Indenture. 

“Early Amortization Event” means the occurrence of any of the following events: 

(i) the unpaid principal balance of the Portfolio is less than $20,000,000,000; 

(ii) the Servicer SDQ Rate exceeds 6.00%; 

(iii) the Market Value of a base fee equal to 12.5 basis points, inclusive of Ancillary Income and servicing costs, is less than $45,000,000;

 (iv) claims by Fannie Mae relating to breaches of representations and warranties for the underlying Mortgage Loans that remain unresolved
following sixty (60) days from the date the related cure and rebuttal periods permitted under the Fannie Mae Guide have been exhausted, and the related compensatory fees and principal balance of mortgage loans for such unresolved claims exceed
0.025% of the unpaid principal balance of the underlying Mortgage Loans as of the end of any calendar month; provided, however that once PMC and Fannie Mae have agreed to an indemnification such indemnification shall be deemed to be a
resolved claim and therefore not part of the foregoing calculation; or 
 (v) notice by Fannie Mae of a material breach by the Servicer of
the Fannie Mae Lender Contract which remains uncured for ninety (90) days. 
 “Early Amortization Event Payment
Amount” has the meaning set forth in the related Indenture Supplement. 
 “Early Amortization Period” means, for
all Series of Notes, the period that begins upon the occurrence of an Early Amortization Event and ends on the date when the Early Amortization Event is no longer in effect, pursuant to the requirements set forth in Section 4.12 of the Base
Indenture. 

  
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 “Eligible Account” means an account or accounts maintained with an insured
depository institution that meets the rating requirements adopted by Fannie Mae and set forth in the Fannie Mae Lender Contract. 

“Eligible Asset” means any Asset: 

(a) which relates to a Servicing Contract for Mortgage Loans in an Eligible Securitization Transaction in which the PMC is acting in the
capacity of servicer; 
 (b) which complies with all Applicable Laws and other legal requirements, whether federal, state or local; 

(c) which provides for payment in Dollars; 

(d) which was not originated in or subject to the Laws of a jurisdiction whose Laws would make such Asset, or the financing thereof
contemplated by the PC Repurchase Agreement unlawful, invalid or unenforceable and is not subject to any legal limitation on transfer; 

(e) which is owned solely by PMC (or with respect to the Sold MSR Excess Spread, PMH) subject to the relevant Servicing Contract free and
clear of all Liens other than Liens in favor of the Issuer, as Repo Buyer (and in the case of Sold MSR Excess Spread, Liens in favor of PMC) and has not been sold, conveyed, pledged or assigned to any other lender, purchaser or Person; 

(f) in respect of which Asset Seller has complied in all material respects with the Collection Policy and the related Servicing Contract or
Participation Agreement, as applicable; 
 (g) which is not an obligation of the United States of America, any State or any agency or
instrumentality or political subdivision thereof (other than Fannie Mae); 
 (h) in respect of which the information set forth in the Asset
Schedule and the related Servicing Contract and, with respect to the Participation Certificates, the Participation Agreement, is true and correct in all material respects; 

(i) in respect of which PMC has obtained from each Person that may have an interest in such Asset all acknowledgments or approvals, if any,
that are necessary to pledge such Asset as contemplated by the PC Repurchase Agreement; 
 (j) (i) which complies with the representations
and warranties set forth on Schedules 1-A and 1-B of the PC Repurchase Agreement, (ii) with respect to Eligible Securities complies with the representations and
warranties to be agreed upon by the Repo Buyer, the Administrative Agent and the Repo Seller and to be set forth on Schedule 1-C to the PC Repurchase Agreement and (iii) with respect to Pledged Margin
Securities, complies with the representations and warranties to be agreed upon by the Repo Buyer, the Administrative Agent and the Repo Seller and to be set forth on Schedule 1-D to the PC Repurchase
Agreement; 

  
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 (k) which with respect to any Asset that constitutes MSRs: 

(i) constitutes an “account” or a “general intangible” as defined in the Uniform Commercial Code and is not
evidenced by an “instrument,” as defined in the Uniform Commercial Code as so in effect; 
 (ii) relates to an
Eligible Securitization Transaction, where the related Participation Certificate is sold to the Issuer, as Repo Buyer, under the PC Repurchase Agreement; 

(iii) arose pursuant to a Servicing Contract that is in full force and effect and under which the Servicer has not been
terminated; and 
 (iv) the related Participation Certificate is an Eligible Asset the PC Repurchase Agreement; and 

(l) which with respect to any Asset that constitutes a Participation Certificate: 

(i) is intended to constitute a “security” as defined in the Uniform Commercial Code and is evidenced by a
certificate; 
 (ii) for which the related MSRs relate to an Eligible Securitization Transaction and have been pledged to the
Issuer, as Repo Buyer, under the PC Repurchase Agreement; 
 (iii) for which the Participation Certificate arose pursuant to
a Participation Agreement that is in full force and effect; and 
 (iv) for which the related MSRs are an Eligible Asset
under the PC Repurchase Agreement; 
 in each case as of the related Purchase Date and as of each day that such Asset shall be subject to a Transaction
under the PC Repurchase Agreement. 
 “Eligible Securities Account” means the
non-interest bearing trust account or accounts, each of which shall be an Eligible Account, established and maintained pursuant to Sections 4.1 and 4.7 of the Base Indenture and entitled “Citibank, N.A.,
as Indenture Trustee for the PMT ISSUER TRUST—FMSR Collateralized Notes, Eligible Securities Account” or such of the foregoing that can be reflected on the account systems of the institution maintaining such account. 

  
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 “Eligible Security” means any of the following obligations and securities:
(i) (a) direct obligations of, or obligations fully guaranteed as to timely payment of principal and interest by, the United States or (b) direct obligations of, or obligations fully guaranteed as to timely payment of principal and interest by,
any agency or instrumentality of the United States, provided that such obligations are backed by the full faith and credit of the United States; or (ii) mortgage backed securities issued or guaranteed by Fannie Mae, Freddie Mac or Ginnie
Mae, each of which shall be listed on Schedule 3 of the Base Indenture, which schedule may be maintained in electronic form. 

“Eligible Securitization Transaction” means any Fannie Mae MBS which, as of the date of the related Transaction and as of
each day that any Asset shall be subject to a Transaction under the PC Repurchase Agreement (unless expressly agreed upon in writing by the Issuer, as Repo Buyer, to the contrary) with respect to which the related Servicing Contract is in full force
and effect at any time any Asset related to such Servicing Contract is subject to a Transaction, and under which the servicer has not been terminated, resigned or become subject to a right of termination or other “trigger event.” 

“Eligible Servicer” means an approved Fannie Mae servicer that Fannie Mae determines in Fannie Mae’s reasonable
discretion, (a) is able to service the Subject Mortgages in light of the needs and characteristics of the Subject Mortgages, (b) is able to perform all of its existing servicing obligations, and (c) is in compliance with the Fannie
Mae Lender Contract. 
 “Eligible Subservicer” means an established mortgage servicer that (A)(i) has been a Fannie Mae
approved issuer for at least two (2) years, (ii) services mortgage loans with an aggregate unpaid principal balance greater than or equal to $30,000,000,000 and (iii) has a servicer rating of at least “Average” by S&P,
“SQ3” by Moody’s or “RPS3” by Fitch, and (B) is party to an Eligible Servicing Agreement. PLS is initially approved by the Issuer, as Repo Buyer, as an Eligible Subservicer, assuming continuing compliance with the
requirements of clause (A) above. 
 “Eligible Subservicing Agreement” means a subservicing agreement
(i) that has been approved in writing by Repo Buyer under the PC Repurchase Agreement, (ii) the subservicer of which is an Eligible Subservicer, and (iii) that has not been assigned or amended in any respect that is materially adverse
to Noteholders with respect to the remittance of servicing fees or advance reimbursements without the prior written consent of Repo Buyer under the PC Repurchase Agreement. The PLS Subservicing Agreement and the Subservicer Side Letter Agreement,
together, are initially approved by the Repo Buyer under the PC Repurchase Agreement as an Eligible Subservicing Agreement, assuming continuing compliance with the requirements of clauses (ii) and (iii) above. 

“EO13224” has the meaning set forth in Section 3.18 of the PC Repurchase Agreement. 

“Entitlement Order” has the meaning set forth in Section 8-102(a)(8) of the UCC.

 “ERISA” means the Employee Retirement Income Security Act of 1974. 

“ERISA Affiliate” means any corporation or trade or business that, together with PMC or the Guarantor is treated as a single
employer under section 414(b) or (c) of the Code or solely for purposes of section 302 of ERISA and section 412 of the Code is treated as single employer described in section 414 of the Code. 

  
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 “Euroclear” means Euroclear Bank S.A./N.V. as operator of the Euroclear
System, and any successor thereto. 
 “Event of Default” means (i) with respect to the Base Indenture, the meaning set
forth in Section 8.1 of the Base Indenture and (ii) with respect to the PC Repurchase Agreement, the meaning set forth in Section 7.01 of the PC Repurchase Agreement. 

“Excess Spread” means, for the Sold MSR Excess Spread PC, “Sold MSR Excess Spread” as defined in the Excess Spread
Participation Agreement. For the Retained MSR Excess Spread PC, “Retained MSR Excess Spread” as set forth in the Retained Excess Spread Participation Agreement. For any other Participation Certificate, as set forth in the related
Participation Agreement. 
 “Excess Spread Participation Agreement” means the Third Amended and Restated Master Spread
Acquisition and MSR Servicing Agreement, dated as of December 20, 2017, between PMC, as seller, and PMH, as purchaser. 

“Excess Spread Rate” means, for the Sold MSR Excess Spread PC, the rate per annum set forth as such in
Section 1.01 of the Excess Spread Participation Agreement. For the Retained MSR Excess Spread PC, the rate per annum set forth as such in Section 1 of the Retained Excess Spread Participation Agreement. For any other Participation
Certificate, as set forth in the related Participation Agreement. 
 “Expense Limit” means, with respect to:
(i) expenses and indemnification amounts (A) in any year, for the Owner Trustee, the Indenture Trustee (in all its capacities) and the MSR Valuation Agent, $200,000 (with $150,000 being reserved for the Indenture Trustee), and (B) for
any single Payment Date, for the Indenture Trustee only (in all its capacities) $50,000; and (ii) Administrative Expenses, in any year, $50,000; provided, that the Expense Limit shall only apply to payments made pursuant to Sections
4.5(a)(1)(i) and (ii) of the Base Indenture; and provided, further, that any amounts in excess of the Expense Limit that have not been paid pursuant to Section 4.5 of the Base Indenture may be applied toward and subject to
the Expense Limit for the subsequent year and may be paid in a subsequent year. 
 “Expense Reserve Account” means the
segregated non-interest bearing trust account or accounts, each of which shall be an Eligible Account, established and maintained pursuant to Sections 4.1 and 4.6 of the Base Indenture, and entitled
“Citibank, N.A., as Indenture Trustee for the PMT ISSUER TRUST—FMSR Collateralized Notes, Expense Reserve Account”. 

“Expense Reserve Required Amount” means, with respect to any date of determination, $200,000 (with $150,000 being reserved
for the Indenture Trustee). 

  
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 “Expenses” means all present and future expenses reasonably incurred by or
on behalf of the Issuer, as Repo Buyer, in connection with the negotiation, execution or enforcement or the ongoing operations relating to the PC Repurchase Agreement, the Indenture, any of the other Program Agreements and PMH Documents, the
Participation Agreements, and any amendment, supplement or other modification or waiver related thereto, whether incurred prior to or after the Closing Date, which expenses shall include any trustee or other service provider fees, indemnification
payments, MSR transfer costs, the cost of title, lien, judgment and other record searches, reasonable attorneys’ fees, any ongoing audits or due diligence costs in connection with valuation, entering into Transactions or determining whether a
Margin Deficit may exist, and costs of preparing and recording any UCC financing statements or other filings necessary to perfect the security interest created by the PC Repurchase Agreement. 

“Facility Entity” has the meaning set forth in Section 9.5(i) of the Base Indenture. 

“Fannie Mae” means the Federal National Mortgage Association and any successor thereto. 

“Fannie Mae Approvals” shall have the meaning set forth in Section 6.10 of the PC Repurchase Agreement. 

“Fannie Mae Eligibility Requirements” has the meaning set forth in Section 3.2(b)(xii) of the Base Indenture. 

“Fannie Mae Guide” means the Fannie Mae Selling Guide and the Fannie Mae Servicing Guide. 

“Fannie Mae Lender Contract” means collectively, the Mortgage Selling and Servicing Contract and all applicable Pool Purchase
Contracts between Fannie Mae and the Servicer, the Fannie Mae Selling Guide, the Fannie Mae Servicing Guide and all supplemental servicing instructions or directives provided by Fannie Mae, all applicable master agreements, recourse agreements,
repurchase agreements, indemnification agreements, loss-sharing agreements, and any other agreements between Fannie Mae and the Servicer. 

“Fannie Mae MBS” means an MBS issued by Fannie Mae, the issuance of which, and the servicing of such Fannie Mae eligible
mortgage loans by PMC, being governed in all respects by the Fannie Mae Lender Contract, including such Fannie Mae eligible mortgage loans for which (i) PMC has submitted a fully completed Request for Approval for Transfer and consummated a
purchase and sale transaction with an eligible Fannie Mae approved issuer to acquire MSRs, (ii) Fannie Mae has approved and consented to such acquisition of MSRs by PMC by delivering a consent notice to PMC in accordance with Chapter A2-7-3 of the Fannie Mae Servicing Guide, and (iii) PMC has started servicing the related MSRs and collecting payments from the borrowers. 

“Fannie Mae Requirements” includes the Fannie Mae Lender Contract (whether specific to PMC or of general application), in
addition to the contracts (including any related guaranty agreement, master servicing agreement, master agreement for servicer’s principal and interest custodial account, master agreement for servicer’s escrow custodial account, master
custodial agreement, schedule of subscribers and any other agreement or arrangement), and all applicable rules, regulations, communications, memoranda and other written directives, procedures, manuals, guidelines, including the Fannie Mae
Eligibility Requirements, and any other information or material incorporated therein, defining the rights and obligations of Fannie Mae and Servicer, with respect to the Mortgage Loans. 

  
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 “Fannie Mae Selling Guide” means the Fannie Mae Single Family Selling
Guide. “Fannie Mae Servicing Guide” means, the Fannie Mae Single Family Servicing Guide. 
 “FATCA” means
sections 1471 through 1474 of the Code, any current or future regulations or official interpretations thereof, any agreement entered into pursuant to section 1471(b) of the Code, or any U.S. or non-U.S. fiscal
or regulatory legislation, guidance notes, rules or practices adopted pursuant to any intergovernmental agreement entered into in connection with the implementation of such sections of the Code. 

“FCPA” has the meaning set forth in Section 10.1(h) of the Base Indenture. “FCPA Entity” or
“FCPA Entities” has the meaning set forth in Section 10.1(h) of the Base Indenture. 
 “FDIA” has the
meaning set forth in Section 10.12(c) of the PC Repurchase Agreement. 
 “FDICIA” has the meaning set forth in
Section 10.12(d) of the PC Repurchase Agreement. 
 “Fee Letter” means, for any Series, as defined in the related
Indenture Supplement, if applicable. 
 “Fees” means, collectively, with respect to any Interest Accrual Period, the
Indenture Trustee Fee, the Owner Trustee Fee, the Disposition Manager Fee and the MSR Valuation Agent Fee. 
 “FHA” means
the Federal Housing Administration, an agency within HUD, or any successor thereto, and including the Federal Housing Commissioner and the Secretary of HUD where appropriate under the FHA Regulations. 

“FHA Loan” means a Mortgage Loan which is the subject of an FHA Mortgage Insurance Contract. 

“FHA Mortgage Insurance Contract” means the contractual obligation of the FHA respecting the insurance of a Mortgage Loan.

 “FHA Regulations” means the regulations promulgated by the Department of HUD under the National Housing Act, as amended
from time to time and codified in 24 Code of Federal Regulations, and other HUD issuances relating to FHA Loans, including the related handbooks, circulars, notices and mortgagee letters. 

“Fidelity Insurance” means insurance coverage with respect to employee errors, omissions, dishonesty, forgery, theft,
disappearance and destruction, robbery and safe burglary, property (other than money and securities) and computer fraud in an aggregate amount acceptable to PMC’s regulators. 

  
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 “Final Payment Date” means, for any Class of Notes, the earliest of
(i) the Stated Maturity Date for such Class, (ii) after the end of the related Revolving Period, the Payment Date on which the Note Balance of the Notes of such Class has been reduced to zero, and (iii) the Payment Date which
follows the Payment Date on which all proceeds of the sale of the Trust Estate are distributed pursuant to Section 8.6 of the Base Indenture. 

“Financial Asset” has the meaning set forth in Section 8-102(a)(9) of the UCC.

 “Financial Statements” means the consolidated financial statements of the Guarantor and PMC prepared in accordance with
GAAP for the year or other period then ended. 
 “Fitch” means Fitch Ratings, Inc., or any successor thereto. 

“Forbearance Loan” means any Mortgage Loan (i) for which the borrower has requested forbearance pursuant to §4022
of the CARES Act, (ii) for which one or more regular monthly payments have not been made, and (iii) which is still in the Forbearance Period (i.e., the Mortgage Loan has not been reinstated or resolved). 

“Forbearance Period” means the period of time during which the Forbearance Loan has not been reinstated as a result of
(i) Servicer receiving the borrower’s full monthly contractual payments previously past due, (ii) Servicer confirming that the borrower (a) has resolved the hardship, (b) is able to continue making the full monthly
contractual payment, and (c) is able to reinstate such Forbearance Loan; (iii) the borrower completing a trial period plan related to the Forbearance Loan or otherwise resolving the Forbearance Loan in accordance with the Fannie Mae Guide;
(iv) the borrower completing a permitted workout option (i.e., flex modification, short sale, or deed-in-lieu of foreclosure), or (v) the borrower paying in
full the Forbearance Loan. 
 “Full Amortization Period” means, for all Series of Notes, the period that begins upon the
commencement of the Full Amortization Period pursuant to Section 4.12 of the Base Indenture and ends on the date on which the Notes of all Series are paid or redeemed in full. 

“Funding Amount” means the amount of a funding proposed to be released or drawn on a VFN on any Funding Date, that does not
cause a Borrowing Base Deficiency. 
 “Funding Certification” means a report delivered by the Administrator in respect of
each Funding Date pursuant to Section 4.3(a) of the Base Indenture. 
 “Funding Conditions” means, with respect to any
proposed Funding Date, the following conditions: 
 (i) no Borrowing Base Deficiency shall exist following the proposed
funding (without giving effect to the Market Value of any Eligible Securities or cash amounts on deposit in the Collection and Funding Account), and the Administrative Agent shall be satisfied in its sole discretion that it has a current accurate
valuation of the Portfolio to support such determination; 

  
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 (ii) no breach of representation, warranty or covenant of the Servicer, the
Administrator or the Issuer, or with respect to the Participation Certificates, under the Base Indenture or under any Transaction Document, which could reasonably be expected to have a material Adverse Effect, shall exist; 

(iii) solely with respect to any Funding Date which will be a VFN Draw Date, (A) (unless (and to the extent) each related VFN
Noteholder and VFN Funding Source has agreed to waive this condition for purposes of fundings under its related Variable Funding Note), no Funding Interruption Event shall be continuing and (B) (unless (and to the extent) each related VFN Noteholder
and VFN Funding Source have agreed to waive this condition for purposes of fundings under its related Variable Funding Note), no Event of Default shall have occurred and be continuing; 

(iv) the Administrator shall have provided the Indenture Trustee, no later than 10:00 a.m. New York City time on the Business
Day preceding such Funding Date (or such other time as may be agreed to from time to time by the Administrator, the Indenture Trustee and the Administrative Agent), a Determination Date Report reporting information with respect to the Participation
Certificates in the Trust Estate and demonstrating the satisfaction of the Borrowing Base, and no later than 10:00 a.m. New York City time on such Funding Date, a Funding Certification certifying that all Funding Conditions have been satisfied;
provided, however, that no Variable Funding Note Noteholder shall have any liability for failing to fund a requested draw of a Variable Funding Note unless it has received a Funding Certification by 1:00 p.m. New York City time on the
Business Day preceding such Funding Date; 
 (v) the full amount of the Required Available Funds shall be on deposit in the
Collection and Funding Account, before and after the release of cash from such account to fund the purchase price of Participation Certificates (if any Participation Certificate is being purchased on such Funding Date); 

(vi) the payment of the Funding Amount or the drawing on any VFNs shall not result in a material adverse United States federal
income tax consequence to the Trust Estate or any Noteholders; and 
 (vii) the Full Amortization Period shall not be in
effect. 
 “Funding Date” means any Payment Date or any Interim Payment Date with respect to which the Administrator shall
have delivered (i) a Funding Certification in accordance with Section 4.3(a) of the Base Indenture or (ii) a VFN Note Balance Adjustment Request in accordance with Section 4.3(b) of the Base Indenture; provided, no Full
Amortization Period shall have occurred and shall be continuing on such Payment Date or Interim Payment Date. 
 “Funding
Interruption Event” means the occurrence of an event which with the giving of notice or the passage of time, or both, would constitute an Event of Default, whether or not the Indenture Trustee, the Administrative Agent and/or any
Noteholders have provided notice sufficient to cause the Full Amortization Period to commence as a result of such event. 

  
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 “GAAP” means U.S. generally accepted accounting principles that are
(i) consistent with the principles promulgated or adopted by the Financial Accounting Standards Board and its successors, as in effect from time to time, and (ii) applied consistently with principles applied to past financial statements of
PMC and its subsidiaries; provided, that a certified public accountant would, insofar as the use of such accounting principles is pertinent, be in a position to deliver an unqualified opinion (other than a qualification regarding changes in
generally accepted accounting principles) that such principles have been properly applied in preparing such financial statements. 

“Ginnie Mae” means the Government National Mortgage Association and any successor thereto. 

“GLB Act” shall have the meaning set forth in Section 10.10(b) of the PC Repurchase Agreement. 

“Global Note” means a Note issued in global form and deposited with or on behalf of the Depository, substantially in the form
of one or more of the Global Notes attached as Exhibit A-1 and Exhibit A-3 to the Base Indenture. 

“Governmental Authority” means any nation or government, any state or other political subdivision thereof, or any entity
exercising executive, legislative, judicial, regulatory or administrative functions over PMC, PMH, the Guarantor or the Issuer, as Repo Buyer, as applicable. 

“Grant,” “Granting” or “Granted” means pledge, bargain, sell, warrant, alienate, remise,
release, convey, assign, transfer, create and grant a lien upon and a security interest in and right of set-off against, deposit, set over and confirm pursuant to this Base Indenture. A Grant of collateral or
of any other agreement or instrument shall include all rights, powers and options (but none of the obligations) of the granting party thereunder, including the immediate and continuing right to claim for, collect, receive and give receipt for
principal and interest payments in respect of such collateral or other agreement or instrument and all other moneys payable thereunder, to give and receive notices and other communications, to make waivers or other agreements, to exercise all rights
and options, to bring proceedings in the name of the granting party or otherwise, and generally to do and receive anything that the granting party is or may be entitled to do or receive thereunder or with respect thereto. 

“Gross Proceeds” means the amount accepted by Fannie Mae for the New Servicing Rights plus any termination fees due to the
Servicer under the Fannie Mae Lender Contract. 
 “Guarantee” means, as to any Person, any obligation of such Person
directly or indirectly guaranteeing any Indebtedness of any other Person or in any manner providing for the payment of any Indebtedness of any other Person or otherwise protecting the holder of such Indebtedness against loss (whether by virtue of
partnership arrangements, by agreement to keep-

  
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well, to purchase assets, goods, securities or services, or to take-or-pay or otherwise); provided that the
term “Guarantee” shall not include (i) endorsements for collection or deposit in the ordinary course of business, or (ii) obligations to make servicing advances for delinquent taxes and insurance or other obligations in
respect of a mortgaged property. The amount of any Guarantee of a Person shall be deemed to be an amount equal to the stated or determinable amount of the primary obligation in respect of which such Guarantee is made or, if not stated or
determinable, the maximum reasonably anticipated liability in respect thereof as determined by such Person in good faith. The terms “Guarantee” and “Guaranteed” used as verbs shall have correlative meanings. 

“Guarantor” means PennyMac Mortgage Investment Trust, in its capacity as guarantor under the PC Repo Guaranty and the PMH
Repo Guaranty. 
 “Hedging Instrument” means, for each Series of Notes, as specified in the related Indenture Supplement.

 “HUD” means the United States Department of Housing and Urban Development or any successor thereto. 

“Indemnified Party” means, for purposes of the Base Indenture, as set forth in Section 10.4 thereof, and for purposes of
the Trust Agreement, as set forth in Section 8.2 thereof. 
 “Indebtedness” means, for any Person:
(a) obligations created, issued or incurred by such Person for borrowed money (whether by loan, the issuance and sale of debt securities or the sale of Property to another Person subject to an understanding or agreement, contingent or
otherwise, to repurchase such Property from such Person); (b) obligations of such Person to pay the deferred purchase or acquisition price of Property or services, other than trade accounts payable (other than for borrowed money) arising, and
accrued expenses incurred, in the ordinary course of business, so long as such trade accounts payable are payable within ninety (90) days of the date the respective goods are delivered or the respective services are rendered;
(c) Indebtedness (as defined in clauses (a) or (b)) of others secured by a Lien on the Property of such Person, whether or not the respective Indebtedness so secured has been assumed by such Person; (d) obligations (contingent or
otherwise) of such Person in respect of letters of credit or similar instruments issued or accepted by banks and other financial institutions for the account of such Person; (e) Capital Lease Obligations of such Person; (f) obligations of
such Person under repurchase agreements, sale/buy-back agreements or like arrangements, including, without limitation, any Indebtedness arising under the PC Repurchase Agreement; (g) Indebtedness (as
defined in clauses (a) or (b)) of others Guaranteed by such Person; (h) all obligations of such Person incurred in connection with the acquisition or carrying of fixed assets by such Person; (i) Indebtedness (as defined in clauses (a)
or (b)) of general partnerships of which such Person is a general partner and (j) with respect to clauses (a)-(i) above both on and off balance sheet. 

“Indenture” has the meaning set forth in the preamble of the Base Indenture. 

“Indenture Supplement” means each supplement to the Base Indenture, executed and delivered in conjunction with the issuance
of the related Series of Notes, including the schedules and exhibits thereto. 

  
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 “Indenture Trustee” means the Person named as the Indenture Trustee in the
Preamble to the Base Indenture until a successor Indenture Trustee shall have become such pursuant to the applicable provisions of this Base Indenture, and thereafter “Indenture Trustee” means and includes each Person who is then an
Indenture Trustee thereunder. 
 “Indenture Trustee Authorized Officer” means, with respect to the Indenture Trustee,
Calculation Agent, Paying Agent, Note Registrar or Securities Intermediary, any officer of the Indenture Trustee, Calculation Agent, Paying Agent, Note Registrar or Securities Intermediary assigned to its corporate trust services, including any vice
president, assistant vice president, assistant treasurer or trust officer, who is customarily performing functions with respect to corporate trust matters and, with respect to a particular corporate trust matter under this Base Indenture, any other
officer to whom such matter is referred because of such officer’s knowledge of and familiarity with the particular subject, in each case, having direct responsibility for the administration of this Base Indenture. 

“Indenture Trustee Fee” means the fee payable to the Indenture Trustee pursuant to the terms of the Base Indenture on each
Payment Date in a monthly amount as agreed in the Indenture Trustee Fee Letter, which includes the fees to Citibank, and its successors and assigns in its capacities as Calculation Agent, Paying Agent, Securities Intermediary and Note Registrar;
provided, that the Indenture Trustee shall also be entitled to receive payment of (i) separate fees and expenses pursuant to Section 11.7 of the Base Indenture in connection with tax filings made by the Indenture Trustee and
(ii) any additional expenses permitted pursuant to the terms of the Indenture Trustee Fee Letter. 
 “Indenture Trustee Fee
Letter” means the fee letter agreement between Citibank and PMC, dated October 10, 2017, setting forth the fees to be paid to Citibank for the performance of its duties as Indenture Trustee and in all other capacities under the Indenture.

 “Initial Note Balance” means, for any Note or for any Class of Notes, the Note Balance of such Note upon the
related Issuance Date as specified in the related Indenture Supplement. 
 “Insolvency Event” means, with respect to a
specified Person, (i) an involuntary case or other proceeding under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect shall be commenced against any Person or any substantial part of its property, or a
petition shall be filed against such Person in an involuntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, seeking the appointment of a receiver, liquidator, assignee, custodian, trustee,
sequestrator or similar official for such Person or for any substantial part of its property, or the winding-up or liquidation of such Person’s business and (A) such case or proceeding shall continue
undismissed and unstayed and in effect for a period of sixty (60) days or (B) an order for relief in respect of such Person shall be entered in such case or proceeding under such laws or a decree or order granting such other requested
relief shall be granted; or (ii) the commencement by such Person of a voluntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, or the consent by such Person to the entry of an order for relief
in an involuntary case under any such law, or the consent 

  
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by such Person to the appointment of or taking possession by a receiver, liquidator, assignee, custodian, trustee, sequestrator or similar official for such Person or for any substantial part of
its property, or the making by such Person of any general assignment for the benefit of creditors, or the failure by such Person generally to pay its debts as such debts become due or the admission by such Person of its inability to pay its debts
generally as they become due. 
 “Insolvency Proceeding” means any proceeding of the sort described in the definition of
Insolvency Event. 
 “Interest Accrual Period” means, for any Class of Notes and any Payment Date, the period
specified in the related Indenture Supplement. 
 “Interest Amount” means, for each Interest Accrual Period and each
Class of Notes, interest accrued on such Class during such period, in an amount equal to interest on such Class’s Note Balance at the applicable Note Interest Rate. 

“Interest Day Count Convention” means, for any Series or Class of Notes, the fraction specified in the related Indenture
Supplement to indicate the number of days counted in an Interest Accrual Period divided by the number of days assumed in a year, for purposes of calculating the Interest Payment Amount for each Interest Accrual Period in respect of such Series or
Class. 
 “Interest Payment Amount” means, for any Series or Class of Notes, as applicable and with
respect to any Payment Date: 
 (i) for any Series or Class of Term Notes, the related Cumulative Interest Shortfall Amount plus the
product of: 
 (A) the Note Balance as of the close of business on the preceding Payment Date; 

(B) the related Note Interest Rate for such Series or Class and for the related Interest Accrual Period; and 

(C) the Interest Day Count Convention specified in the related Indenture Supplement; and 

(ii) for any Series or Class of Variable Funding Notes, the lesser of: 

(1) the related Cumulative Interest Shortfall Amount plus the product of: 

(A) the average daily aggregate VFN Principal Balance during the related Interest Accrual Period (calculated based on the average of the
aggregate VFN Principal Balances on each day during the related Interest Accrual Period); 

  
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 (B) the related Note Interest Rate for such Class during the related Interest Accrual
Period; and 
 (C) the Interest Day Count Convention specified in the related Indenture Supplement; or 

(2) such other amount as determined by the Administrative Agent and reported to the Indenture Trustee at least one (1) Business Day prior
to such Payment Date. 
 “Interested Noteholders” means, for any Class, any Noteholder or group of Noteholders holding
Notes evidencing not less than 25% of the aggregate Voting Interests of such Class. 
 “Interim Borrowing Base” means, as
of any Interim Borrowing Base Determination Date, an amount equal to the aggregate Collateral Value (as calculated using clause (c) of the definition of Market Value Percentage) of the Portfolio. 

“Interim Borrowing Base Determination Date” means the Business Day following the day in which a Modified Valuation Trigger
has occurred and is at least five (5) Business Days prior to or after the next succeeding Borrowing Base Determination Date or (ii) any other Business Day agreed to among the Issuer, the Administrator, the Indenture Trustee and the
Administrative Agent, following one (1) Business Day’s written notice to the Indenture Trustee. 
 “Interim Borrowing Base
Payment Date” means the fifth (5th) Business Day following an Interim Borrowing Base Determination Date. 
 “Interim
Payment Date” means, with respect to any Series of Notes, (i) each Interim Borrowing Base Payment Date or (ii) for each calendar week, the second (2nd) Business Day of such week following one (1) Business Day’s written
notice from the Issuer to the related VFN Noteholders, the Administrative Agent and the Indenture Trustee, or (iii) for any other Business Day, such date agreed to among the Issuer, the Administrator, the Indenture Trustee and the
Administrative Agent, following one (1) Business Day’s written notice to the Indenture Trustee. If an Interim Payment Date falls on the same date as a Payment Date, the Interim Payment Date shall be disregarded. No Interim Payment Dates
shall occur during the Full Amortization Period. 
 “Interim Payment Date Report” has the meaning set forth in
Section 3.2(c) of the Base Indenture. 
 “Investment Company Act” means the Investment Company Act of 1940. 

“IRS” means the United States Internal Revenue Service. 

“Issuance Date” means, for any Series of Notes, the date of issuance of such Series, as set forth in the related Indenture
Supplement. 

  
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 “ Issuer” has the meaning set forth in the Preamble to the Base Indenture.

 “Issuer Affiliate” means any person involved in the organization or operation of the Issuer or an Affiliate of such a
person which is also an affiliate within the meaning of Rule 3a-7 promulgated under the Investment Company Act. 

“Issuer Authorized Officer” means any director or any authorized officer of the Owner Trustee or the Administrator who may
also be an officer or employee of PMC, its managing member or an Affiliate of PMC or its managing member. 
 “Issuer
Certificate” means a certificate (including an Officer’s Certificate) signed in the name of an Issuer Authorized Officer, or signed in the name of the Issuer by an Issuer Authorized Officer. Wherever this Base Indenture requires that
an Issuer Certificate be signed also by an accountant or other expert, such accountant or other expert (except as otherwise expressly provided in this Base Indenture) may be an employee of PMC or an Affiliate. 

“Issuer Indemnified Party” has the meaning set forth in Section 9.2(a) of the Base Indenture. 

“Issuer Tax Opinion” means, with respect to any undertaking, an Opinion of Counsel to the effect that, for United States
federal income tax purposes, (i) such undertaking will not result in the Issuer being subject to tax on its net income as an association (or publicly traded partnership) taxable as a corporation or a taxable mortgage pool taxable as a
corporation, (ii) if any Notes are issued or deemed issued as a result of such undertaking, any Notes issued or deemed issued on such date that are not Retained Notes will be debt, and (iii) if requested by the Administrative Agent, such
undertaking will not cause the Noteholders or beneficial owners of Notes that are not Retained Notes to have been sold or exchanged under section 1001 of the Code (excluding, for this purpose, sales or exchanges of the Notes that result in gain or
loss of zero for federal income tax purposes). For any Series of VFNs that is a Retained Note, clause (ii) shall apply to the repurchase agreement financing of such Series of VFNs, if any (rather than to the VFNs subject to such financing).

 “Laws” means any law (including common law), constitution, statute, treaty, regulation, rule, ordinance, order,
injunction, writ, decree or award of any Governmental Authority. 
 Lender Adjusted Net Worth” has the meaning set forth in the
Fannie Mae Contract. 
 “Level” means any of the six (6) tiers of Servicer SDQ Rate set forth in the definition of
Stop-Loss Cap. 
 “License” means any license, permit, approval, right, privilege, quota, concession, or franchise issued,
granted, conferred or otherwise created by a Governmental Authority. 

  
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 “Lien” means, with respect to any property or asset of any Person
(a) any mortgage, lien, pledge, charge or other security interest or encumbrance of any kind in respect of such property or asset or (b) the interest of a vendor or lessor arising out of the acquisition of or agreement to acquire such
property or asset under any conditional sale agreement, lease purchase agreement or other title retention agreement. 

“Liquidity” has the meaning set forth in the Fannie Mae Lender Contract. 

“Majority Certificateholders” means the holders of Trust Certificates representing a Percentage Interest of more than 50% in
the aggregate. 
 “Majority Noteholders” means, with respect to any Series or Class of Notes or all Outstanding Notes,
the Noteholders of greater than 50% of the Note Balance of the Outstanding Notes of such Series or Class or of Outstanding Notes, as the case may be, measured by Voting Interests in any case. 

“Margin Call” has the meaning set forth in Section 2.05(a) of the PC Repurchase Agreement. 

“Margin Call Payment” means (i) the sale and delivery of Eligible Securities, or (ii) the transfer of cash to the
Issuer, as Repo Buyer, under the PC Repurchase Agreement. 
 “Margin Deadlines” has the meaning set forth in
Section 2.05(b) of the PC Repurchase Agreement. 
 “Margin Deficit” has the meaning set forth in Section 2.05(a)
of the PC Repurchase Agreement. 
 “Margin Excess” has the meaning set forth in Section 2.05(d) of the PC Repurchase
Agreement. 
 “Margin Excess Notice” means, in connection with a funding of Margin Excess pursuant to Section 2.05(d)
of the PC Repurchase Agreement, an irrevocable notice delivered by PMC, as Repo Seller, to the Issuer, as Repo Buyer, with a copy to the Administrative Agent and the Indenture Trustee, which notice (i) shall be substantially in the form of
Exhibit C to the PC Repurchase Agreement, (ii) shall be signed by a Responsible Officer of PMC and be received by the Issuer, as Repo Buyer, prior to 1:00 p.m. (New York time) one (1) Business Day prior to the related Interim Payment Date,
(iii) shall specify (A) the Dollar amount of the requested Margin Excess, (B) the requested Interim Payment Date, and (C) shall include a copy of the related “Funding Certification” being delivered pursuant to the
Indenture in connection with such funding of Margin Excess, if applicable, and (iv) shall have attached to it a revised Asset Schedule dated the date of such notice. 

“Market Value” means, as of any date of determination, (a) with respect to the Participation Certificate, as of any date
of determination, the product of (1) the Market Value Percentage as of the most recent Market Value Report and (2) the aggregate unpaid principal balance of the Mortgage Loans related to the MSRs evidenced by the Participation Certificate
as of the last day for which such information is available; (b) with respect to any Eligible Security, 

  
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the fair market value thereof as of the close of business on the immediately preceding Business Day, as determined by an independent third party appointed by the Administrator and subject to
procedures mutually agreed to between the Administrator and the Administrative Agent; and (c) with respect to any Pledged Margin Security, the positive mark to market gain, if any, as determined by using the bid side pricing of either Tradeweb
Markets, LLC, Thomson Reuters or such other pricing service mutually agreeable to the Administrator and the Administrative Agent or the exchange upon which such contract is traded, as applicable. 

“Market Value Information” has the meaning set forth in Section 3.1(a) of the Base Indenture. 

“Market Value Percentage” means: 

(a) for Funding purposes (and for the purpose of calculating the Collateral Value used in connection with such determination of
a Funding) from time to time, as of any date of determination, the lesser of (i) the fair value percentage of the MSR determined by the Servicer as of the most recent date of determination or (ii) the middle of the range of the fair value
percentage, including any Modified Valuation as applicable, of the MSR from the most recently delivered Market Value Report; 

(b) for purposes of determining the Borrowing Base (and for the purpose of calculating the Collateral Value used in connection
with such determination of the Borrowing Base) from time to time, as of any date of determination, the greater of (i) the Market Value Percentage calculated for Funding purposes pursuant to clause (a) above, and (ii) the lower of
(x) the product of (1) the middle of the range of the fair value percentage of the MSR from the most recently delivered Market Value Report and (2) 105.5% or (y) the product of (1) the average of the middle of the range of the
fair value percentage of the MSR from the three (3) most recently delivered Market Value Reports and (2) 104%; or 
 (c)
for purposes of determining the Interim Borrowing Base (and for the purpose of calculating the Collateral Value used in connection with such determination of the Interim Borrowing Base) from time to time, as of any date of determination, the greater
of (i) the Market Value Percentage calculated for Funding purposes pursuant to clause (a) above which shall represent the Modified Valuation applicable to the Interim Borrowing Base Determination Date, and (ii) the lower of
(x) the product of (1) the middle of the range of the fair value percentage, which shall represent the applicable Modified Valuation, of the MSR from the most recently delivered Market Value Report and (2) 105.5% or (y) the product of
(1) the average of the middle of the range of the fair value percentage, based on the applicable Modified Valuation, of the MSR from the three (3) most recently delivered Market Value Reports and (2) 104%. 

“Market Value Report” has the meaning set forth in Section 3.3(g) of the Base Indenture. 

  
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 “Material Adverse Effect” means (a) a material adverse change in, or a
material adverse effect upon, the operations, business, properties, condition (financial or otherwise) or prospects of PMC, the Guarantor or any Affiliate thereof that is a party to any Program Agreement taken as a whole; (b) a material
impairment of the ability of PMC, the Guarantor or any Affiliate thereof that is a party to any Program Agreement to perform under any Program Agreement and to avoid any Event of Default; (c) a material adverse effect upon the legality,
validity, binding effect or enforceability of any Program Agreement against PMC, the Guarantor or any Affiliate thereof that is a party to any Program Agreement; or (d) a material adverse effect on the rights and remedies of PMC under any of
the PMH Documents. 
 “Maximum VFN Principal Balance” means, for any VFN Class, the amount specified in the related
Indenture Supplement. 
 “MBS” means a mortgage backed security guaranteed by Fannie Mae pursuant to the Fannie Mae Lender
Contract. 
 “Minimum Reserve Amount” means the lesser of: (i) the Stop-Loss Cap and (ii) the sum of:
(A) the Current Amounts Due, plus (B) all projected amounts (calculated using Fannie Mae’s proprietary modeling system and Fannie Mae’s historical data) that may be due to Fannie Mae related to the items described in clauses
B(1)-B(3) of the definition of Current Amounts Due. If the amounts determined in clauses (i) and (ii) above are equal, then the “Minimum Reserve Amount” is the amount determined in clause (ii) above. 

“Modified Valuation” means the fair market values and the valuation percentages of the Portfolio provided by the MSR
Valuation Agent in the Market Value Report assuming that the 10-year U.S. Treasury rate (mid-mark) as compared to the 10-year
U.S. Treasury rate (mid- mark) used by the MSR Valuation Agent as of the Borrowing Base Determination Date (i) declines by more than 0.375% or (ii) increases by more than 0.375%. 

“Modified Valuation Trigger” occurs when the 10-year U.S. Treasury rate (mid- mark) as compared to the 10-year U.S. Treasury rate (mid-mark) used by the MSR Valuation Agent as of the most recent Borrowing
Base Determination Date (i) declines by more than 0.375% or (ii) increases by more than 0.375%. 
 “Moody’s”
means Moody’s Investors Service, Inc. or any successors thereto. 
 “Mortgage” means, with respect to a Mortgage Loan,
a mortgage, deed of trust or other instrument encumbering a fee simple interest in real property securing a Mortgage Note. 

“Mortgage Loan” means all loans serviced or to be serviced on an ongoing basis by the Servicer for Fannie Mae. 

“Mortgage Note” means the note or other evidence of the indebtedness of a mortgagor secured by a Mortgage under a Mortgage
Loan and all amendments, modifications and attachments thereto. 

  
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 “Mortgage Selling and Servicing Contract” means the Mortgage Selling and
Servicing Contract, dated as of October 15, 2010, as amended by the Addendum to Mortgage Selling and Servicing Contract, dated as of January 14, 2013, between the Servicer and Fannie Mae, pursuant to which the Servicer is selling mortgage
loans to Fannie Mae or servicing Mortgage Loans on Fannie Mae’s behalf, and any related addenda. 
 “Mortgaged
Property” means the real property (including all improvements, buildings, fixtures and building equipment thereon and all additions, alterations and replacements made at any time with respect to the foregoing) and all other collateral
securing repayment of the related Mortgage Loan. 
 “MRA Payment Date” means the Business Day immediately preceding a
“Payment Date” as defined in the Base Indenture. 
 “MSR Monthly Report” has the meaning set forth in
Section 3.3(f) of the Base Indenture. 
 “MSR Portfolio” means the Mortgage Loans underlying the Participation
Certificates. 
 “MSR Valuation Agent” means Incenter Mortgage Advisors, LLC, or any successor third party mortgage
servicing rights valuation agent appointed by PMC in accordance with the terms of this Base Indenture. 
 “MSR Valuation Agent
Agreement” means the MSR Valuation Agent Agreement, dated as of December 20, 2017, among the MSR Valuation Agent, PMC and the Issuer. 

“MSR Valuation Agent Fee” means the fees and expenses payable to the MSR Valuation Agent pursuant to the terms of the MSR
Valuation Agent Agreement. 
 “MSRs” means, with respect to the Mortgage Loans, the mortgage servicing rights, including
any and all of the following: (a) any and all rights to service the Mortgage Loans; (b) any payments to or monies received by the Servicer for servicing the Mortgage Loans; (c) any late fees, penalties or similar payments with respect
to the Mortgage Loans; (d) all agreements or documents creating, defining or evidencing any such servicing rights to the extent they relate to such servicing rights and all rights of the Servicer thereunder; (e) escrow or other similar
payments with respect to the Mortgage Loans and any amounts actually collected by the Servicer with respect thereto; (f) all accounts and other rights to payment related to any of the property described in this definition; and (g) any and
all documents, files, records, servicing files, servicing documents, servicing records, data tapes, computer records, or other information pertaining to the Mortgage Loans or pertaining to the past, present or prospective servicing of the Mortgage
Loans; provided, however, MSRs shall not include any Advance Reimbursement Amounts. 
 “Multiemployer Plan”
means a multiemployer plan defined as such in Section 3(37) of ERISA to which contributions have been or are required to be made by PMC or any ERISA Affiliate and that is covered by Title IV of ERISA. 

  
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 “Net Earnings” means reported Total Gross Income (Loss)(as calculated based
on the values assigned to such terms and reported in the Mortgage Bankers’ Financial Reporting Form) from servicing, less: (x) changes in MSR value; (y) gains (losses) on derivatives used to hedge Servicing Rights; and (z) gains
(losses) on other derivatives or other financial instruments, calculated based on data reported in the servicing column of Schedule C (Income) of its Mortgage Bankers’ Financial Reporting Form. 

“Net Excess Cash Amount” means, on any Payment Date or Interim Payment Date, the amount of funds available to be distributed
to the holder of the Owner Trust Certificate pursuant to Sections 4.4(a)(iv), 4.5(a)(1)(x) or 4.5(a)(2)(vi) of the Base Indenture, as applicable. 

“Net Payment Amount” means with respect to any MRA Payment Date or Interim Payment Date, an amount equal to the sum of
(i) the amounts payable by PMC pursuant to Sections 2.03, 2.04 or 2.05 of the PC Repurchase Agreement, as applicable, minus (ii) the amounts, if any, that will be distributable under Sections 4.4(a)(iv) or 4.5(a)(1)(x) of the Base
Indenture to the holder of the Owner Trust Certificate. 
 “Net Proceeds” means either (A) the Gross Proceeds minus
the Minimum Reserve Amount, if Fannie Mae chooses to market the New Servicing Rights, or (B) the Appraised Market Value (plus any termination fee due to the Servicer under the Fannie Mae Lender Contract) minus the Minimum Reserve Amount, if
Fannie Mae chooses to keep the Servicing Rights. 
 “New Servicing Rights” means the new servicing rights created when
Fannie Mae engages a new interim servicer or subservicer to service the Subject Mortgages after Fannie Mae terminates the Servicing Rights. 

“Non-Excluded Taxes” has the meaning set forth in Section 2.09(a) of the PC
Repurchase Agreement. 
 “Non-SDQ Factor” means, for a Level, the number of basis
points set out in the definition of Stop-Loss Cap as the Non-SDQ Factor for such Level. 
 “Non-SDQ Loans” means Mortgage Loans which are not SDQ Loans. 
 “Nonpublic Personal
Information” means any consumer’s nonpublic personal information as defined in the Gramm-Leach-Bliley Act. 

“Note” or “Notes” means any note or notes of any Class authenticated and delivered from time to time
under this Base Indenture and the related Indenture Supplement including any Variable Funding Note. 
 “Note Balance”
means, on any date (i) for any Term Note, or for any Series or Class of Term Notes, as the context requires, the Initial Note Balance of such Term Note or the aggregate of the Initial Note Balances of the Term Notes of such Series or
Class, as applicable, less all amounts paid to the Noteholder of such Term Note or Noteholders of such Term Notes with respect to principal, and (ii) for any Variable Funding Note, its VFN Principal Balance on such date. 

  
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 “Note Interest Rate” means, for any Note, or for any Series or
Class of Notes as the context requires, the interest rate specified, or calculated as provided in, the related Indenture Supplement. 

“Note Owner” means, with respect to a Book Entry Note, the Person who is the owner of such Book Entry Note, as reflected on
the books of the Depository, or on the books of a Person maintaining an account with such Depository (directly as a Depository Participant or as an indirect participant, in each case in accordance with the rules of such Depository) and with respect
to any Definitive Notes, the Noteholder of such Note. 
 “Note Payment Account” means the segregated non-interest bearing trust account or accounts, each of which shall be an Eligible Account, established and maintained pursuant to Sections 4.1 and 4.8 of the Base Indenture and entitled “Citibank, N.A., as
Indenture Trustee in trust for the Noteholders of the PMT ISSUER TRUST—FMSR Collateralized Notes, Note Payment Account”. 

“Note Purchase Agreement” means an agreement with one or more initial purchasers or placement agents under which the Issuer
will sell the Notes to such initial purchaser(s), or contract with such placement agent(s) for the initial private placement of the Notes, in each case as further defined in the related Indenture Supplement. 

“Note Rating Agency” means any nationally recognized rating agency, and, with respect to any Outstanding Class of Notes,
each rating agency, if any, specified in the related Indenture Supplement. References to Note Rating Agencies or “each” or “any” Note Rating Agency in this Base Indenture refer to Note Rating Agencies that were engaged to rate
any Notes issued under this Base Indenture, which Notes are still Outstanding. 
 “Note Register” has the meaning set forth
in Section 6.5 of the Base Indenture. 
 “Note Registrar” means the Person who keeps the Note Register specified in
Section 6.5 of the Base Indenture. 
 “Noteholder” means the Person in whose name a Note is registered in the Note
Register, except that, solely for the purposes of giving certain consents, waivers, requests or demands as may be specified in this Base Indenture, the interests evidenced by any Note registered in the name of, or in the name of a Person or entity
holding for the benefit of, the Issuer, PMC or any Person that is an Affiliate of either or both of the Issuer and PMC, shall not be taken into account in determining whether the requisite percentage necessary to effect any such consent, waiver,
request or demand shall have been obtained (unless such Person is the sole holder of the Notes). The Indenture Trustee shall have no responsibility to count any Person as a Noteholder who is not permitted to be so counted under the Base Indenture
pursuant to the definition of “Outstanding” unless a Responsible Officer of the Indenture Trustee has actual knowledge that such Person is an Affiliate of either or both of the Issuer and PMC. 

  
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 “Notice” or “Notices” means all requests, demands and
other communications, in writing (including facsimile transmissions and e-mails), sent by overnight delivery service, facsimile transmission, electronic transmission or hand-delivery to the intended recipient
at the address specified in Section 10.04 of the PC Repurchase Agreement or, as to any party, at such other address as shall be designated by such party in a written notice to the other party. 

“NRSRO” means a nationally recognized statistical rating organization that is a credit rating agency that issues credit
ratings that the U.S. Securities and Exchange Commission permits other financial firms to use for certain regulatory purposes. 

“Obligations” means (a) all of PMC’s indebtedness, obligations to pay the outstanding principal balance of the
Purchase Price, together with interest thereon on the Termination Date, outstanding interest due on each MRA Payment Date, and other obligations and liabilities, to the Issuer, as Repo Buyer, arising under, or in connection with, the Program
Agreements, whether now existing or hereafter arising; (b) any and all sums reasonably incurred and paid by the Issuer, as Repo Buyer, or on behalf of the Issuer, as Repo Buyer, in order to preserve any Repurchase Asset or its interest therein;
(c) in the event of any proceeding for the collection or enforcement of any of PMC’s indebtedness, obligations or liabilities referred to in this definition, the reasonable expenses of retaking, holding, collecting, preparing for sale,
selling or otherwise disposing of or realizing on any Repurchase Asset, or of any exercise by the Issuer, as Repo Buyer, of its rights under the Program Agreements, including, without limitation, reasonable attorneys’ fees and disbursements and
court costs; and (d) all of PMC’s indemnity obligations to the Issuer, as Repo Buyer, pursuant to the Program Agreements. 

“Obligor” means any Person who owes or may be liable for payments under a Mortgage Loan. 

“OFAC” has the meaning set forth in Section 10.1(j) of the Base Indenture. 

“Officer’s Certificate” means a certificate signed by an Issuer Authorized Officer and delivered to the Indenture
Trustee. Wherever this Base Indenture requires that an Officer’s Certificate be signed also by an accountant or other expert, such accountant or other expert (except as otherwise expressly provided in this Base Indenture) may be an employee of
the Servicer. 
 “Opinion of Counsel” means a written opinion of counsel reasonably acceptable to the Indenture Trustee,
which counsel may, without limitation, and except as otherwise expressly provided in this Base Indenture and except for any opinions related to tax matters or material adverse effects on Noteholders, be an employee of the Issuer, PMC or any of their
Affiliates. 
 “Optional Payment” has the meaning set forth in Section 2.03(c) of the PC Repurchase Agreement. 

“Organizational Documents” means the Issuer’s Trust Agreement (including the related Owner Trust Certificate). 

“Other Taxes” has the meaning set forth in in Section 2.09(b) of the PC Repurchase Agreement. 

  
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 “Outstanding” means, with respect to all Notes and, with respect to a Note
or with respect to Notes of any Series or Class means, as of the date of determination, all such Notes theretofore authenticated and delivered under this Base Indenture, except: 

(i) any Notes theretofore canceled by the Indenture Trustee or delivered to the Indenture Trustee for cancellation, or canceled
by the Issuer and delivered to the Indenture Trustee pursuant to Section 6.9 of the Base Indenture; 
 (ii) any Notes to
be redeemed for whose full payment (including principal and interest) redemption money in the necessary amount has been theretofore deposited with the Indenture Trustee or any Paying Agent in trust for the Noteholders of such Notes; provided
that, if such Notes are to be redeemed, notice of such redemption has been duly given if required pursuant to this Base Indenture, or provision therefore satisfactory to the Indenture Trustee has been made; 

(iii) any Notes which are canceled pursuant to Section7.3 of the Base Indenture; and 

(iv) any Notes in exchange for or in lieu of which other Notes have been authenticated and delivered pursuant to this Base
Indenture (except with respect to any such Note as to which proof satisfactory to the Indenture Trustee is presented that such Note is held by a person in whose hands such Note is a legal, valid and binding obligation of the Issuer). 

For purposes of determining the amounts of deposits, allocations, reallocations or payments to be made, unless the context clearly requires
otherwise, references to “Notes” will be deemed to be references to “Outstanding Notes”. In determining whether the Noteholders of the requisite principal amount of such Outstanding Notes have taken any Action under the Base
Indenture, Notes owned by the Issuer, PMC, or any Affiliate of the Issuer or PMC (except with respect to the Series 2017-VF1 Notes which have been sold by PMC to the VFN Repo Buyers under the Series 2017-VF1 Repurchase Agreement and any Action to be given or taken by a Noteholder under the Base Indenture shall be taken by the Repo Buyer under the Series 2017-VF1
Repurchase Agreement) shall be disregarded. In determining whether the Indenture Trustee will be protected in relying upon any such Action, only Notes which an Indenture Trustee Authorized Officer has actual knowledge are owned by the Issuer or PMC,
or any Affiliate of the Issuer or PMC, will be so disregarded. Notes so owned which have been sold pursuant to a repurchase transaction or pledged in good faith may be regarded as Outstanding if the pledgee proves to the satisfaction of the
Indenture Trustee the pledgee’s right to act as owner with respect to such Notes and that the Repo Buyer or pledgee is not the Issuer or PMC or any Affiliate of the Issuer or PMC. Retained Notes shall not constitute Notes
“Outstanding” to the extent contemplated by the applicable Indenture Supplement. 
 “Owner” means, when used with
respect to a Note, any related Note Owner. 
 “Owner Trust Certificate” means a certificate evidencing a 100% undivided
beneficial interest in the Issuer. 

  
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 “Owner Trust Estate” means the estate of the Trust. 

“Owner Trustee” means WSFS, not in its individual capacity but solely as owner trustee under the Trust Agreement, and any
successor Owner Trustee thereunder. 
 “Owner Trustee Fee” means the annual fee of $7,000, to be paid annually on the
Payment Date occurring in December of each year. 
 “Owner Trustee Lien” means the lien in favor of the Owner Trustee
granted pursuant to Section 8.3 of the Trust Agreement, which lien is subordinated to the lien of the Indenture Trustee as provided in such Section 8.3 and is subject and subordinate to any and all rights of Fannie Mae under the Fannie Mae
Lender Contract or the Acknowledgment Agreement. 
 “Participation Agreement” means, (i) with respect to the Sold MSR
Excess Spread PC, the Excess Spread Participation Agreement, (ii) with respect to the Retained MSR Excess Spread PC, the Retained Excess Spread Participation Agreement, and (iii) with respect to any other Participation Certificate, as set
forth in the related Participation Agreement. 
 “Participation Certificate” has the meaning, (i) with respect to the
Excess Spread Participation Agreement, the Sold MSR Excess Spread PC, (ii) with respect to the Retained Excess Spread Participation Agreement, the Retained MSR Excess Spread PC, and with respect to any other Participation Agreement, as set
forth therein. 
 “Participation Certificate Schedule” means, as of any date, the list attached as Schedule 1 to the Base
Indenture, as it may be amended from time to time in accordance with Section 2.1(b) of the Base Indenture. 
 “Participation
Interest” has the meaning set forth in the Excess Spread Participation Agreement or the Retained Excess Spread Participation Agreement, as applicable. 

“Paying Agent” means the same Person who serves at any time as the Indenture Trustee, or an Affiliate of such Person, as
paying agent pursuant to the terms of this Base Indenture. 
 “Payment Date” means, in any month beginning in January 2018,
the 25th day of such month or, if such 25th day is not a Business Day, the next Business Day following such 25th day. 
 “Payment
Date Report” has the meaning set forth in Section 3.2(b) of the Base Indenture. 
 “PBGC” means the Pension
Benefit Guaranty Corporation or any entity succeeding to any or all of its functions under ERISA. 
 “PC Documents” means,
collectively, the Participation Certificates and the PC Repurchase Agreement. 

  
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 “PC Repo Guaranty” means that certain guaranty, made by the Guarantor in
favor of the Issuer, guaranteeing payment to the Issuer of all amounts owing to the Issuer from PMC pursuant to the PC Repurchase Agreement. 

“PC Repo Pricing Side Letter” means the pricing side letter agreement to the PC Repurchase Agreement, dated as of the Closing
Date, among the Issuer, as Repo Buyer, PMC, as Repo Seller, and the Guarantor. 
 “PC Repurchase Agreement” means the
Master Repurchase Agreement, dated as of December 20, 2017, among PMC, as Repo Seller, the Issuer, as Repo Buyer and the Guarantor, pursuant to which PMC has sold to the Issuer, all of its right, title and interest in, to and under (i) the
Retained MSR Excess Spread PC (including all rights to the Retained MSR Excess Spread related thereto), and (ii) subject to PMH’s rights under the PMH Repurchase Agreement, the Sold MSR Excess Spread PC (including all rights to the Sold
MSR Excess Spread related thereto). 
 “Percentage Interest” means, with respect to each Trust Certificate, the percentage
indicated on the face thereof. 
 “Permitted Investments” means, at any time, any one or more of the following obligations
and securities: 
 (i) (a) direct obligations of, or obligations fully guaranteed as to timely payment of principal and
interest by, the United States or (b) direct obligations of, or obligations fully guaranteed as to timely payment of principal and interest by, any agency or instrumentality of the United States, provided that such obligations are backed
by the full faith and credit of the United States; and provided further that the short-term debt obligations of such agency or instrumentality at the date of acquisition thereof have been rated (x)
“A-1” or the equivalent by any NRSRO if such obligations have a maturity of less than sixty (60) days after the date of acquisition or (y)
“A-1+” or the equivalent by any NRSRO if such obligations have a maturity greater than sixty (60) days after the date of acquisition; 

(ii) repurchase agreements on obligations specified in clause (a) maturing not more than three months from the date
of acquisition thereof; provided that the short-term unsecured debt obligations of the party agreeing to repurchase such obligations are at the time rated “A-1+” or the equivalent by any
NRSRO; 
 (iii) certificates of deposit, time deposits and bankers’ acceptances of any U.S. depository institution or
trust company incorporated under the laws of the United States or any state thereof and subject to supervision and examination by a federal and/or state banking authority of the United States; provided that the unsecured short-term debt
obligations of such depository institution or trust company at the date of acquisition thereof have been rated “A-1+” or the equivalent by any NRSRO; 

(iv) commercial paper of any entity organized under the laws of the United States or any state thereof which on the date of
acquisition has been rated “A-1+” or the equivalent by any NRSRO; 

  
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 (v) interests in any U.S. money market fund which, at the date of
acquisition of the interests in such fund (including any such fund that is managed by the Indenture Trustee or an Affiliate of the Indenture Trustee or for which the Indenture Trustee or an Affiliate acts as advisor) and throughout the time as the
interest is held in such fund, has a rating of “AAAm” or the equivalent by any NRSRO; or 
 (vi) other obligations
or securities that are acceptable to the NRSRO as Permitted Investments under the Base Indenture and if the investment of account funds therein will not result in a reduction in the then current rating of the Notes, as evidenced by a letter to such
effect from the NRSRO; 
 provided, that each of the foregoing investments shall mature no later than the Business Day prior to the Payment Date
immediately following the date of purchase thereof (other than in the case of the investment of monies in instruments of which the Indenture Trustee is the obligor, which may mature on the related Payment Date), and shall be required to be held to
such maturity; and provided further, that each of the Permitted Investments may be purchased by the Indenture Trustee through an Affiliate of the Indenture Trustee. 

“Permitted Lien” means any liens for taxes, assessments, or similar charges incurred in the ordinary course of business and
which are not yet due or as to which the period of grace, if any, related thereto has not expired or which are being contested in good faith and by appropriate proceedings if adequate reserves are maintained to the extent required by GAAP. 

“Person” means any individual, corporation, estate, partnership, limited liability company, limited liability partnership,
joint venture, association, joint-stock company, business trust, trust, unincorporated organization, government or any agency or political subdivision thereof, or other entity of a similar nature. 

“PIP” means any performance improvement plan entered into between the Servicer and Fannie Mae from time to time. 

“Place of Payment” means, with respect to any Class of Notes issued under the Indenture, the city or political
subdivision so designated with respect to such Class of Notes by the Indenture Trustee. 
 “Plan” means an employee
benefit or other plan established or maintained by PMC or any ERISA Affiliate and covered by Title IV of ERISA, other than a Multiemployer Plan. 

“Plan Asset Regulations” has the meaning set forth in Section 6.5(k) of the Base Indenture. 

“Plan Assets” has the meaning set forth in United States Department of Labor regulations at 29 C. F. R, section 2510.3-101 as modified by Section 3(42) of ERISA. 
 “Pledged Margin Securities
Account” means a securities account which shall be established for the benefit of the Indenture Trustee. 

  
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 “Pledged Margin Securities Account Control Agreement” means, a securities
account control agreement which shall be entered into by and among PMC, the Issuer, the Indenture Trustee, PLS and the Guarantor for the purpose of holding the Pledged Margin Securities. 

“Pledged Margin Security” means any exchange traded futures and options or any “to be announced” long forward
contract on a mortgage-backed security. For the avoidance of doubt, put contracts, short forward contracts and shorting will not be permitted with respect to Pledged Margin Securities. 

“PLS” means PennyMac Loan Services, LLC, a limited liability company organized under the laws of the State of Delaware, or
its permitted successors and assigns. 
 “PLS Subservicing Agreement” means the Fourth Amended and Restated Flow Servicing
Agreement, dated as of June 30, 2020, between PennyMac Operating Partnership, L.P., as owner, and PLS, as servicer, as amended by Amendment No. 1 thereto, dated as of March 9, 2021. 

“PMC” means PennyMac Corp., a corporation organized under the laws of the State of Delaware, or its permitted successors and
assigns. 
 “PMC Repurchase Price” means the price for which PMC is entitled to repurchase a Participation Certificate from
the Issuer, under the PC Repurchase Agreement. 
 “PMH” means PennyMac Holdings, LLC, a limited liability company organized
under the laws of the State of Delaware, or its permitted successors and assigns. 
 “PMH Documents” means the PMH
Repurchase Agreement, PMH Repo Guaranty, PMH Subordination Agreement, pricing letter, side letter, confirmations and all documents ancillary thereto that evidence a PMH Transaction in the form approved by the Issuer, in writing in its sole
discretion with any material modifications approved by the Issuer in writing in its sole discretion (excluding provisions related to the advance rate or interest rate of such PMH Transactions, which shall not be subject to the Issuer review or
approval). 
 “PMH Guaranteed Amount” has the meaning set forth in the PMH Repo Guaranty. 

“PMH Repo Guaranty” means that certain guaranty, made by Guarantor in favor of PMC, guaranteeing payment to PMC of all
amounts owing to PMC from PMH pursuant to the PMH Repurchase Agreement. 
 “PMH Repurchase Agreement” means the Master
Repurchase Agreement, dated as of December 20, 2017, between PMH, as Repo Seller, and PMC, as Repo Buyer, related to the Sold MSR Excess Spread PC. 

  
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 “PMH Repurchase Price” means the price for which PMH is entitled to
repurchase the Sold MSR Excess Spread PC from PMC, under the PMH Repurchase Agreement. 
 “PMH Subordination Agreement”
means the Subordination, Acknowledgment and Pledge Agreement, dated as of December 20, 2017, between the Issuer, as buyer, and PMH. 

“PMH Transaction” means a transaction between PMH, as Repo Seller, and PMC whereby PMH pledges the Sold MSR Excess Spread to
PMC against the transfer of funds by the PMC, which Sold MSR Excess Spread is concurrently or consecutively pledged to the Issuer, as Repo Buyer, under the PC Repurchase Agreement. 

“PMT” means PennyMac Mortgage Investment Trust, a real estate investment trust organized under the laws of the State of
Maryland, or its permitted successors and assigns. 
 “Pool Purchase Contract” means an agreement between Fannie Mae and
the Servicer to buy and sell mortgage loans or Participation Interests for inclusion in an MBS pool. 
 “Portfolio” means
each of (i) The Retained MSR Portfolio, and (ii) the Sold MSR Portfolio, as applicable. 
 “Portfolio
Collections” shall have the meaning set forth in the Excess Spread Participation Agreement. 
 “Portfolio Excess
Spread” means, collectively, the Retained MSR Excess Spread and the Sold MSR Excess Spread and with respect to any other Participation Certificate, the Excess Spread related thereto. 

“Portfolio Mortgage Loan” means a Retained MSR Portfolio Mortgage Loan or a Sold MSR Portfolio Mortgage Loan, as applicable.

 “Portfolio Total Spread” shall have the meaning set forth in the Excess Spread Participation Agreement. 

“Predecessor Notes” of any particular Note means every previous Note evidencing all or a portion of the same debt as that
evidenced by such particular Note; and, for the purposes of this definition, any Note authenticated and delivered under Section 6.6 of the Base Indenture in lieu of a mutilated, lost, destroyed or stolen Note will be deemed to evidence the same
debt as the mutilated, lost, destroyed or stolen Note. 
 “Price Differential” means with respect to any Transaction as of
any date of determination, an amount equal to the sum of (i) the product of (A) the Pricing Rate for such Transaction, (B) the Purchase Price for such Transaction and (C) a fraction, the numerator of which is the number of days
elapsed from and including the preceding MRA Payment Date to and excluding such date of determination and the denominator of which equals 360, and (ii) the aggregate expected related fees (including Default Supplemental Fees, and Step-Up Fees), costs and expenses (including any Fees, Expenses, reasonable out-of-pocket expenses and indemnification amounts owed for
Administrative Expenses of the Issuer described in Section 4.5(a)(1)(ii) of the Base Indenture, and Specified Call Premium Amounts) as of such date of determination (as determined by the Administrative Agent). 

  
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 “Price Differential Statement Date” has the meaning set forth in
Section 2.04(a) of the PC Repurchase Agreement. 
 “Pricing Rate” ” has the meaning set forth in Section 1
of the PC Repo Pricing Side Letter. 
 “Proceeds” means “proceeds” as defined in
Section 9-102(a)(64) of the UCC. “Program Agreements” means the PC Repurchase Agreement, the PC Repo Pricing Side Letter, the Dedicated Account Control Agreement, the Pledged Margin
Securities Account Control Agreement, if any, the Dedicated Account Pledge Agreement, the Indenture, the Participation Agreements, and the PMH Documents. 

“Prohibited Person” has the meaning set forth in Section 3.18 of the PC Repurchase Agreement. 

“Property” means any right or interest in or to property of any kind whatsoever, whether real, personal or mixed and whether
tangible or intangible. 
 “Prospective Owner” shall have the meaning set forth in Section 3.9(a) of the Trust
Agreement. 
 “PTCE” has the meaning set forth in Section 6.5(k) of the Base Indenture. “Purchase
Date” means, subject to the satisfaction of the conditions precedent set forth in Article IV of the PC Repurchase Agreement, (i) the 25th day of such month (or, if such 25th day is not a Business Day, the next Business Day
following such 25th day) or (ii) each calendar week, the second (2nd) Business Day of each such week (or if any such date is not a Business Day, the next succeeding Business Day) following one (1) Business Day’s written notice from
PMC, as Repo Seller, to the Issuer, as Repo Buyer, and the Administrative Agent, in each case on which a Transaction is entered into by the Issuer, as Repo Buyer, pursuant to the PC Repurchase Agreement or such other mutually agreed upon date as
more particularly set forth in the PC Repurchase Agreement. 
 “Purchase Price” means the price at which each Purchased
Asset (or portion thereof) is transferred by PMC, as Repo Seller, to the Issuer, as Repo Buyer, which shall equal: 
 (a) on the Purchase
Date, the product of (1) the Purchase Price Percentage and 
 (2) the applicable Market Value; and 

(b) on any day after the Purchase Date, the amount determined under the immediately preceding clause (a) increased by the amount
of any Margin Excess pursuant to Section 2.05(d) of the PC Repurchase Agreement and decreased by the sum of (i) any Repurchase Price or Required Payments paid pursuant to Section 2.03 of the PC Repurchase Agreement, and

  
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(ii) the amount of Consideration transferred by PMC, as Repo Seller, to the Issuer, as Repo Buyer, pursuant to Section 2.05(a) of the PC Repurchase Agreement equal to the sum of (x) any
cash, (y) the principal amount of any Additional Note Payment with respect to the Variable Funding Note and (z) the amount of any reduction in the Owner Trust Certificate, to the extent provided in Section 2.05 the PC Repurchase
Agreement. 
 “Purchase Price Percentage” has the meaning set forth in Section 1 of the PC Repo Pricing Side Letter.

 “Purchased Assets” means the collective reference to Participation Certificates together with the Repurchase Assets
related to such Participation Certificates. For the sake of clarity, notwithstanding that related MSRs are pledged, and not sold, to the Issuer, as Repo Buyer, under the PC Repurchase Agreement, such MSRs will nevertheless be included herein as
Purchased Assets. 
 “Ratings Effect” means a reduction, qualification with negative implications or withdrawal of any then
current rating of any Outstanding Notes by an applicable Note Rating Agency (other than as a result of the termination of such Note Rating Agency). 

“Record Date” means, for the interest or principal payable on any Note on any applicable Payment Date or Interim Payment
Date, (i) for a Book Entry Note, the last Business Day before such Payment Date or Interim Payment Date, as applicable, and (ii) for a Definitive Note, the last day of the month preceding such Payment Date or Interim Payment Date, as
applicable, unless otherwise specified in the related Indenture Supplement. 
 “Records” means all instruments, agreements
and other books, records, and reports and data generated by other media for the storage of information maintained by PMC, or any other person or entity with respect to the Purchased Assets or any other Repurchase Assets. 

“Redemption Amount” means, with respect to a redemption of any Series or Class of Notes by the Issuer pursuant to
Section 13.1 of the Base Indenture or pursuant to the related Indenture Supplement, an amount, which when applied together with other Available Funds pursuant to Section 4.5 of the Base Indenture, shall be sufficient to pay an amount equal
to the sum of (i) the Note Balance of all Outstanding Notes of such Series or Class as of the applicable Redemption Payment Date or Redemption Date, (ii) all accrued and unpaid interest on the Notes of such Series or
Class through the day prior to such Redemption Payment Date or Redemption Date, (iii) any and all amounts allocable to such Series or Class and then owing or owing in connection with such redemption to the Indenture Trustee or the
Securities Intermediary, from the Issuer pursuant to the terms hereof, and (iv) any and all other amounts allocable to such Series or Class then due and payable under the Indenture (including all accrued and unpaid Default Supplemental
Fees or Step-Up Fees on the Notes of such Series or Class through the day prior to such Redemption Payment Date or Redemption Date and any Specified Call Premium Amount, if any) and, in the case of
redemption of all Outstanding Notes, sufficient to authorize the satisfaction and discharge of this Base Indenture pursuant to Section 7.1 of the Base Indenture. 

“Redemption Date” has the meaning set forth in Section 13.1 of the Base Indenture. 

  
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 “Redemption Notice” has the meaning set forth in Section 13.2 of the
Base Indenture. 
 “Redemption Payment Date” has the meaning set forth in Section 13.1 of the Base Indenture. 

“Redemption Percentage” means, for any Class, 10% or such other percentage set forth in the related Indenture Supplement.

 “Register” has the meaning set forth in Section 9.02(a) of the PC Repurchase Agreement. 

“Regulation AB” means Subpart 229.1100 – Asset Backed Securities (Regulation AB), 17 C.F.R. §§ 229.1100
229.1125, as such may be amended from time to time, and subject to such clarification and interpretation as have been provided by the U.S. Securities and Exchange Commission or by the staff of the U.S. Securities and Exchange Commission, or as may
be provided by the U.S. Securities and Exchange Commission or its staff from time to time. 
 “Regulation RR” means
regulations required under Section 15G of the 1934 Act, added pursuant to Section 941(b) of the Dodd-Frank Wall Street Reform and Consumer Protection Act. 

“Regulation S” means Regulation S promulgated under the 1933 Act or any successor provision thereto, in each case as the same
may be amended from time to time; and all references to any rule, section or subsection of, or definition contained in, Regulation S means such rule, section, subsection, definition or term, as the case may be, or any successor thereto. 

“Regulation S Definitive Note” has the meaning set forth in in Section 5.2(c)(ii) of the Base Indenture. 

“Regulation S Global Note” has the meaning set forth in Section 5.2(c)(ii) of the Base Indenture. 

“Regulation S Note” has the meaning set forth in Section 5.2(c)(ii) of the Base Indenture. 

“Regulation S Note Transfer Certificate” has the meaning set forth in Section 6.5(i)(ii) of the Base Indenture. 

“Related Security” means with respect to any Asset, (a) all security interests or Liens and property subject thereto
from time to time, if any, purporting to secure payment of such Asset, whether pursuant to the related Servicing Contract related to such Asset or otherwise, together with all financing statements covering any collateral securing such Asset;
(b) all guarantees, indemnities, letters of credit, insurance or other agreements or arrangements of any kind from time to time supporting or securing payment of such Asset whether pursuant to the related Servicing Contract related to such
Asset or otherwise; and (c) any and all Proceeds of the foregoing. 

  
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 “REO Property” means a Mortgaged Property in which an owner of the related
Mortgage Loan has acquired title to such Mortgaged Property through foreclosure or by deed in lieu of foreclosure. 
 “Repo
Buyer” means the purchaser under a repurchase agreement. With respect to the PMH Repurchase Agreement, PMC is the Repo Buyer. With respect to the PC Repurchase Agreement, the Issuer is the Repo Buyer. With respect to the Series 2017-VF1 Repurchase Agreement, each VFN Repo Buyer is a Repo Buyer. 
 “Repo Seller”
means the seller under a repurchase agreement. With respect to the PMH Repurchase Agreement, PMH is the Repo Seller. With respect to the PC Repurchase Agreement, PMC is the Repo Seller. With respect to the Series
2017-VF1 Repurchase Agreement, PMC is the Repo Seller. 
 “Repurchase Assets” has
the meaning set forth in Section 4.02(a) of the PC Repurchase Agreement. 
 “Repurchase Date” means the earlier of
(i) the Termination Date or (ii) the date requested by PMC, as Repo Seller, on which the Repurchase Price is paid pursuant to Section 2.03 of the PC Repurchase Agreement. 

“Repurchase Price” means the price at which Purchased Assets are to be transferred from the Issuer, as Repo Buyer, to PMC, as
Repo Seller (other than the MSRs, which are pledged, and not sold, to the Issuer, as Repo Buyer), upon termination of a Transaction, which will be determined in each case (including Transactions terminable upon demand) as the sum of the Purchase
Price for such Purchased Assets and the accrued but unpaid Price Differential as of the date of such determination. 
 “Request for
Approval for Transfer” means Form 629 to the Fannie Mae Guide (Request for Approval for Servicing or Subservicing Transfer) as required by Chapter A2-7-3 of the
Fannie Mae Guide for one Fannie Mae approved servicer to transfer its responsibility for servicing or subservicing any mortgage loans and/or acquired properties to another servicer. 

“Required Available Funds” means an amount that, in connection with each Funding Date, shall remain on deposit in the
Collection and Funding Account, which amount shall equal (i) the amounts payable in respect of Fees and invoiced or regularly occurring expenses payable from Available Funds on the next Payment Date, plus (ii) all accrued and unpaid
interest due on the Notes on the next Payment Date following such Funding Date, plus (iii) all amounts required to be deposited into each Series Reserve Account on the next Payment Date, plus (iv) all amounts required to be
deposited into the Expense Reserve Account on the next Payment Date, plus (v) all accrued and unpaid Default Supplemental Fees, if any, due on the Notes on the next Payment Date following such Funding Date, plus (vi) all
accrued and unpaid Step-Up Fees, if any, due on the Notes on the next Payment Date following such Funding Date. 

  
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 “Required Payment” means, with respect to any Purchased Asset, the amounts
required to be paid by PMC, as Repo Seller, to the Issuer, as Repo Buyer, on an MRA Payment Date, equal to any Scheduled Principal Payment Amounts due on such MRA Payment Date under the Indenture. 

“Required Reserve Amount” means, with respect to any MRA Payment Date, the amounts estimated to be due and
owing by PMC, as Repo Seller, pursuant Sections 2.03, 2.04 or 

	 	2.05	 of the PC Repurchase Agreement. 

“Requirement of Law” means, with respect to any Person, any law, treaty, rule or regulation or determination of an
arbitrator, a court or other Governmental Authority, applicable to or binding upon such Person or any of its property or to which such Person or any of its property is subject. 

“Responsible Officer” means, 

(i) When used with respect to the Indenture Trustee, the Calculation Agent, the Note Registrar, the Securities Intermediary or
the Paying Agent, an Indenture Trustee Authorized Officer; 
 (ii) when used with respect to the Issuer, any Issuer
Authorized Officer who is an officer of the Issuer or is an officer of the Administrator of the type referred to in clause 

(iii) below; and 

(iii) when used with respect to the Servicer or the Administrator, the chief executive officer, the chief financial officer,
any vice president or any managing director of the Servicer or the Administrator, as the case may be. 
 “Restricted Cash”
has the meaning set forth in Section 1 of the PC Repo Pricing Side Letter. 
 “Restricted Payment” means, with respect
to any Person, collectively, all dividends or other distributions of any nature (cash, securities, assets or otherwise), and all payments, by virtue of redemption or otherwise, on any class of equity securities (including, warrants, options or
rights therefor) issued by such Person, which may hereafter be authorized or outstanding and any distribution in respect of any of the foregoing, whether directly or indirectly. 

“Retained Excess Spread Participation Agreement” means the Retained Spread Participation Agreement, dated as of
December 20, 2017, between PMC, as company, and PMC, as initial participant. 
 “Retained MSR Excess Spread” has the
meaning set forth in the Retained Excess Spread Participation Agreement. 
 “Retained MSR Excess Spread Collections” shall
have the meaning set forth in the Retained Excess Spread Participation Agreement. 

  
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 “Retained MSR Excess Spread PC” means the Participation Certificate issued
pursuant to the Retained Excess Spread Participation Agreement which evidences the Participation Interest in the Retained MSR Excess Spread. 

“Retained MSR Portfolio” has the meaning set forth in the Retained Excess Spread Participation Agreement. 

“Retained MSR Portfolio Mortgage Loan” means a Mortgage Loan that is included in the Retained MSR Portfolio. 

“Retained Note” has the meaning set forth in Section 14.3 of the Base Indenture. 

“Revolving Period” means, for any Series or Class of Notes, the period of time beginning on, and including, the related
Issuance Date and ending on, but excluding, commencement of the Early Amortization Period or the Full Amortization Period. For the avoidance of doubt, the occurrence of an Advance Rate Trigger Event shall not cause the termination of the Revolving
Period. 
 “Right of Assumption” means the Indenture Trustee’s right to request that the Indenture Trustee, if it is
an Eligible Servicer, or a proposed new servicer, if it is an Eligible Servicer, be retained to service the Subject Mortgages, all on the terms and conditions set forth in the Acknowledgment Agreement. 

“Rule 144A” means Rule 144A promulgated under the 1933 Act. 

“Rule 144A Definitive Note” has the meaning set forth in Section 5.2(c)(i) of the Base Indenture. 

“Rule 144A Global Note” has the meaning set forth in Section 5.2(c)(i) of the Base Indenture. 

“Rule 144A Note” has the meaning set forth in Section 5.2(c)(i) of the Base Indenture. 

“Rule 144A Note Transfer Certificate” has the meaning set forth in Section 6.5(i)(iii) of the Base Indenture. 

“S&P” means Standard & Poor’s Ratings Services, a Standard & Poor’s Financial Services LLC
business, or any successor thereto. 
 “Sale” means any sale of any portion of the Trust Estate pursuant to
Section 8.15 of the Base Indenture. 
 “Sanctions” has the meaning set forth in Section 10.1(j) of the Base
Indenture. 

  
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 “Schedules of Mortgages” means each Form 2005 (Guaranteed Mortgage-Backed
Securities Program Schedule of Mortgages) for PMC delivered to Fannie Mae or its designee from time to time as provided in the Fannie Mae Guide. 

“Scheduled Principal Payment Amount” means, for each Series of Notes and each Payment Date, as and to the extent specified in
the related Indenture Supplement. 
 “SDQ Event” means the Servicer SDQ Rate for two (2) consecutive months is greater
than 90% of the upper threshold of the related Level. 
 “SDQ Factor” means, for a Level, the number of basis points set
out in the definition of Stop-Loss Cap as the SDQ Factor for such Level. 
 “SDQ Loans” means loans for which Servicer owns
the Fannie Mae servicing rights that are 90 days or more delinquent or in foreclosure. 
 “SEC” means the United States
Securities and Exchange Commission, or any successor thereto. 
 “Secretary of State” means the Secretary of State of the
State of Delaware. “Secured Party” has the meaning set forth in the Granting Clause of the Base Indenture. 

“Securities Account” has the meaning set forth in Section 8-501(a) of the UCC.
“Securities Intermediary” has the meaning set forth in Section 8-102(a)(14) of the UCC, and where appropriate, shall mean Citibank or its successor, in its capacity as securities
intermediary pursuant to Section 4.9 of the Base Indenture. 
 “Security Entitlement or Securities
Entitlements” has the meaning set forth in Section 8-102(a)(17) of the UCC. 

“Security Interest” means the security interest in the Collateral Granted to the Indenture Trustee pursuant to the Granting
Clause. 
 “Seller Termination Option” means (a) (i) the Issuer, as Repo Buyer, has or shall incur costs in connection
with those matters provided for in Section 2.09 or 2.10 of the PC Repurchase Agreement and (ii) the Issuer, as Repo Buyer, requests that PMC, as Repo Seller, pay to the Issuer, as Repo Buyer, those costs in connection therewith or
(b) the Issuer, as Repo Buyer, has declared in writing that an event described in Section 5.02(h)(A) of the PC Repurchase Agreement has occurred. 

“Series” means one or more Class or Classes of Notes assigned a series designation, as specified in the related
Indenture Supplement. 
 “Series 2017-VF1 Indenture Supplement” means the Indenture
Supplement, dated as of December 20, 2017, by and among the Issuer, the Indenture Trustee, the Calculation Agent, the Paying Agent, the Securities Intermediary, PMC, as Administrator and as Servicer, and CSFB, as Administrative Agent. 

  
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 “Series 2017-VF1 Notes” means the
Notes issued pursuant to the Series 2017-VF1 Indenture Supplement. 
 “Series 2017-VF1 Repurchase Agreement” means the Master Repurchase Agreement, dated as of December 20, 2017, among PMC, as Repo Seller, the VFN Repo Buyers, as Repo Buyers, and CSFB, as Administrative Agent,
related to the Series 2017-VF1 Notes. 
 “Series
2018-FT1 Indenture Supplement” means the Indenture Supplement, dated as of April 25, 2018, by and among the Issuer, the Indenture Trustee, the Calculation Agent, the Paying Agent, the Securities
Intermediary, PMC, as Administrator and as Servicer, and CSFB, as Administrative Agent. 
 “Series
2018-FT1 Notes” means the Notes issued pursuant to the Series 2018-FT1 Indenture Supplement. 

“Series Allocation Percentage” means, for any Series as of any date of determination: 

(i) as of any date prior to the Full Amortization Period, the percentage obtained by dividing (a) the Series Invested
Amount for such Series by (b) the aggregate of the Series Invested Amounts for all Outstanding Series; and 
 (ii) as
of any date during the Full Amortization Period, the percentage obtained by dividing (a) the Series Invested Amount for such Series as of the first day of the Full Amortization Period by (b) the aggregate of the Series Invested Amounts as
of the first day of the Full Amortization Period for all Outstanding Series. 
 “Series Available Funds” means, for any
Series as of any Payment Date occurring during the Full Amortization Period, after paying any amounts owed under Sections 4.5(a)(2)(i), (ii) and (iii) of the Base Indenture, the sum of the following: 

(i) such Series’ Series Allocation Percentage of any income from Permitted Investments in the Collection and Funding
Account; 
 (ii) such Series’ Series Allocation Percentage of all Collections on deposit in the Trust Accounts that are
not Series Reserve Accounts (prior to giving effect to any payments on such Payment Date); 
 (iii) such Series’ Series
Allocation Percentage of any other funds of the Issuer that the Issuer (or the Administrator on behalf of the Issuer) identifies to the Indenture Trustee in writing to be treated as “Available Funds” as of such Payment Date; and 

(iv) such other amounts designated as Series Available Funds for the benefit of such Series of Notes in the related Indenture
Supplement. 

  
 188 

 “Series Invested Amount” means, the VFN Series Invested Amount or the Term
Note Series Invested Amount, as applicable. 
 “Series Required Noteholders” means, for any Series (a) if not
specified in the related Indenture Supplement, Noteholders of any Series constituting the Majority Noteholders of such Series and (b) if specified in the related Indenture Supplement, as set forth in the related Indenture Supplement. 

“Series Reserve Account” means an account established for each Series which shall be a
non-interest bearing trust account which is an Eligible Account, established and maintained pursuant to Sections 4.1 and 4.6 of the Base Indenture, and in the name of the Indenture Trustee and identified by
each relevant Series. 
 “Series Reserve Required Amount” means with respect to any Series of Notes, if applicable, the
“Series Reserve Required Amount” set forth in the Indenture Supplement for such Series. 
 “Servicer” means PMC
in all its capacities as a Fannie Mae approved seller/servicer under the Fannie Mae Lender Contract and as servicer under the Fannie Mae Lender Contract of the related Mortgage Loans, and any successor servicer approved by Fannie Mae under the
Fannie Mae Lender Contract. 
 “Servicer SDQ Rate” means (i) the result of (x) the unpaid principal balance of
SDQ Loans, divided by (y) the total unpaid principal balance of Mortgage Loans, in each case, determined as of the end of the most recently ended calendar month, multiplied by (ii) 100, expressed as a percentage; provided,
however, that in conformance with the calculation of the Servicer SDQ Rate in the Acknowledgment Agreement, following the date the Series 2018-FT1 Notes are no longer Outstanding, only 30% of the unpaid
principal balance of Forbearance Loans will count in the calculation of “SDQ Loans” for purposes of calculating the “Servicer SDQ Rate”. 

“Servicer Termination Event” means, with respect to the Fannie Mae Lender Contract, the occurrence of any events or
conditions, and the passage of any cure periods and giving to and receipt by the Servicer of any required notices, as a result of which any Person has the current right to terminate the Servicer as servicer or issuer, as applicable, under the Fannie
Mae Lender Contract. 
 “Servicer’s Fannie Mae Portfolio” means all mortgage loans delivered, and all mortgage loans
and properties serviced, by the Servicer for Fannie Mae through the date, if any, Fannie Mae terminates the Servicing Rights. 

“Servicing Contract” means, the Mortgage Selling and Servicing Contract, the applicable Master Agreements between Purchaser
and Fannie Mae, and the applicable Schedules of Mortgages (Form 2005), and any and all instruments, agreements, invoices or other writings, which give rise to or otherwise evidence any of the MSRs. Without limiting the generality of the foregoing,
any reference herein to a “Servicing Contract” shall be deemed to include the Acknowledgment Agreement. 

  
 189 

 “Servicing Fee” means, with respect to any Mortgage Loan, the aggregate
monthly fee payable to the Servicer in servicing such Mortgage Loan pursuant to the Fannie Mae Lender Contract, not including any Ancillary Income or Advance Reimbursement Amounts. 

“Servicing Rights” means the Servicer’s rights under the Fannie Mae Lender 

Contract. 
 “Servicing
Standards” has the meaning set forth in Section 10.2(i) of the Base Indenture. 
 “Servicing Transfer Consent
Notice” means Fannie Mae’s consent to the post-delivery transfer of servicing to PMC from a transferor servicer under the terms set forth in the Fannie Mae Guide, including any additional terms, conditions and provisions set forth in
such consent. 
 “Shortfall Amount” has the meaning set forth in Section 4.5 of the Base Indenture. 

“Similar Law” has the meaning set forth in Section 6.5(k) of the Base Indenture. “Sold MSR Excess
Spread” has the meaning set forth in the Excess Spread Participation Agreement. 
 “Sold MSR Excess Spread PC” has
the meaning set forth in the Excess Spread Participation Agreement. 
 “Sold MSR Portfolio” has the meaning set forth in
the Excess Spread Participation Agreement. 
 “Sold MSR Portfolio Mortgage Loan” means a Mortgage Loan that is included in
the Sold MSR Portfolio. 
 “Specified Call Premium Amount” has the meaning set forth in the related Indenture Supplement,
if applicable. 
 “STAMP” has the meaning set forth in Section 6.5(d) of the Base Indenture. “Stated Maturity
Date” means, for each Class of Notes, the date specified in the 
 Indenture Supplement for such Note as the fixed date on
which the outstanding principal and all accrued interest for such Series or Class of Notes is due and payable. 
 “Statutory
Trust Statute” means Chapter 38 of Title 12 of the Delaware Code, 12 Del. C. § 3801 et seq. 
 “Step-Up Fee” has the meaning set forth in the related Indenture Supplement, if applicable. if applicable. 

  
 190 

 “Step-Up Fee Rate” has the meaning
set forth in the related Indenture Supplement. 
 “Stop-Loss Cap” means, as of any date of determination during the
Stop-Loss Cap Period, and subject to the provisions below, 
 (A) so long as the Series 2018-FT1
Notes are Outstanding, the greater of (1) the calculation of the Stop-Loss Cap pursuant to clause (B) of this definition or (2) the greater of: (i) $250,000, and (ii) the sum of (a) the result of (x) the unpaid
principal balance of Non-SDQ Loans as of such date multiplied by (y) the applicable Non-SDQ Factor shown in the chart below (as adjusted from time to time), plus
(b) the result of (x) the unpaid principal balance of SDQ Loans as of such date multiplied by (y) the applicable SDQ Factor shown in the chart below (as adjusted from time to time). 

 

							
	 “Level”
	  	If the Servicer
SDQ Rate is:	 	Then, the “Non-
SDQ Factor” is:	  	And the “SDQ Factor” is:
	 1
	  	0% -2.0%	 	10 bps	  	50 bps
	 2
	  	2.01% - 4.0%	 	12 bps	  	75 bps
	 3
	  	4.01% - 6.0%	 	14 bps	  	100 bps
	 4
	  	6.01% - 10.0%	 	17 bps	  	150 bps
	 5
	  	10.01% - 15.0%	 	20 bps	  	200 bps
	 6
	  	15.01% and over	 	25 bps	  	300 bps

 and (B) following the date the Series 2018-FT1 Notes are no
longer Outstanding, the greater of: (i) $250,000, and (ii) the sum of (a) the result of (x) the unpaid principal balance of Non-SDQ Loans as of such date multiplied by (y) the applicable Non-SDQ Factor shown in the chart below (as adjusted from time to time pursuant to Section 12.2 of this Base Indenture to conform with the Acknowledgment Agreement), plus (b) the
result of (x) the unpaid principal balance of SDQ Loans as of such date multiplied by (y) the applicable SDQ Factor shown in the chart below (as adjusted from time to time pursuant to Section 12.2 of this Base
Indenture to conform with the Acknowledgment Agreement). For purposes of calculating the Stop-Loss Cap under this paragraph (B), the Servicer SDQ Rate and the unpaid principal balance of SDQ Loans with respect to Mortgage Loans in the
Servicer’s Fannie Mae portfolio, only 30% of the unpaid principal balance of Forbearance Loans will be multiplied by the applicable “SDQ Factor”, while the remaining 70% of the unpaid principal balance of Forbearance Loans will be
considered Non SDQ Loans and multiplied by the applicable “Non SDQ Factor”. For the avoidance of doubt, if a borrower reinstates or resolves 

  
 191 

 
any Forbearance Loan and such loan subsequently becomes ninety (90) days or more delinquent, the full unpaid principal balance of such SDQ Loan will be multiplied by the applicable “SDQ
Factor” and the 30% factor shall not be applicable unless additional forbearance of such loan under the CARES ACT or any replacement thereof is permitted by Fannie Mae. 
  

							
	 “Level”
	  	If the Servicer
SDQ Rate is:	 	Then, the “Non-
SDQ Factor” is:	  	And the “SDQ Factor” is:
	 1
	  	0% - 2.0%	 	11 bps	  	62 bps
	 2
	  	2.01% - 4.0%	 	13 bps	  	93 bps
	 3
	  	4.01% - 6.0%	 	15 bps	  	125 bps
	 4
	  	6.01% - 10.0%	 	18 bps	  	187 bps
	 5
	  	10.01% - 15.0%	 	21 bps	  	250 bps
	 6
	  	15.01% and over	 	25 bps	  	375 bps

 “Stop-Loss Cap Period” means the period beginning on the effective date of the Acknowledgment
Agreement and terminating on the fifth (5th) anniversary of the effective date of the Acknowledgment Agreement, subject to any extension of such period pursuant to the terms of the Acknowledgment Agreement as agreed by Fannie Mae in its sole and
absolute discretion. 
 “Stop-Loss Cap Required Amount” means with respect to any Series of Notes, if applicable, the
“Stop-Loss Cap Required Amount” set forth in the Indenture Supplement for such Series. 
 “Subject Mortgages”
means all loans which are now being serviced or which may later be serviced by the Servicer pursuant to the Fannie Mae Lender Contract. 

“Subservicer” means, with respect to any MSR, any subservicer engaged by the Servicer to subservice the Mortgage Loans
related to such MSR so long as such subservicing arrangement with respect to such MSR is subject to an Eligible Subservicing Agreement. 

“Subservicer Side Letter Agreement” the Subservicer Acknowledgment Agreement, dated as of December 20, 2017, among PMC,
PLS, the Administrative Agent and the Indenture Trustee. 
 “Subservicer Termination Event” occurs when: 

(i) the Servicer has terminated the Person acting as Subservicer and has not either (a) taken over the servicing of such Mortgage Loans
itself in conformity with Section 10.2(y) of the Base Indenture or (b) (i) identified a replacement within thirty (30) days that meets the criteria of an Eligible Subservicer and (ii) replaced the Subservicer with such Eligible
Subservicer within sixty (60) days under an Eligible Subservicing Agreement and an agreement in form and substance similar to the Subservicer Side Letter Agreement; or 

  
 192 

 (ii) in the case of PLS, if (a) PLS ceases to be a seller/servicer approved by Fannie
Mae or a lender approved by HUD, (b) PLS has been suspended as a seller/servicer by Fannie Mae or HUD on and after the date on which PLS first obtained such approval from Fannie Mae or HUD, as applicable or (c) PLS is under review or
investigation outside of due course and has knowledge of imminent or future investigation outside of due course, by Fannie Mae or HUD on and after the date on which PLS became a Fannie Mae or HUD approved seller/servicer or lender, as the context
may require, and the Servicer has not either (x) taken over the servicing of such Mortgage Loans itself in conformity with Section 10.2(y) of the Base Indenture or (y) (i) identified a replacement within thirty (30) days that
meets the criteria of an Eligible Subservicer and (ii) replaced PLS with such Eligible Subservicer within sixty (60) days under an Eligible Subservicing Agreement and an agreement in form and substance similar to the Subservicer Side
Letter Agreement. 
 “Subordination of Interest Agreement” means the Third Amended and Restated Subordination of Interest
Agreement, dated as of December 20, 2017, among Fannie Mae, the Guarantor, PMC, PMH and the Indenture Trustee. 

“Subsidiary” means, with respect to any Person, any corporation, partnership, limited liability company or other entity of
which at least a majority of the securities or other ownership interests having by the terms thereof ordinary voting power to elect a majority of the board of directors or other persons performing similar functions of such corporation, partnership
or other entity (irrespective of whether or not at the time securities or other ownership interests of any other class or classes of such corporation, partnership or other entity shall have or might have voting power by reason of the happening of
any contingency) is at the time directly or indirectly owned or controlled by such Person or one or more Subsidiaries of such Person or by such Person and one or more Subsidiaries of such Person. 

“Taxes” has the meaning assigned to such term in Section 2.09(a) of the PC Repurchase Agreement. 

“Term Note” means notes of any Series or Class designated as “Term Notes” in the related Indenture Supplement.

 “Term Note Series Available Funds” means, for each Series of Term Notes as of any Payment Date occurring during the Full
Amortization Period, after paying any amounts owed under Sections 4.5(a)(2)(i) and 4.5(a)(2)(ii) of the Base Indenture, the sum of the following: 

(i) such Series’ Series Allocation Percentage of any income from Permitted Investments in the Collection and Funding
Account; 
 (ii) such Series’ Series Allocation Percentage of all Collections on deposit in the Trust Accounts that are
not Series Reserve Accounts (prior to giving effect to any payments on such Payment Date); 

  
 193 

 (iii) such Series’ Series Allocation Percentage of any other funds of
the Issuer that the Issuer (or the Administrator on behalf of the Issuer) identifies to the Indenture Trustee in writing to be treated as “Available Funds” as of such Payment Date; and 

(iv) such other amounts designated as Term Note Series Available Funds for the benefit of such Series of Term Notes in the
related Indenture Supplement. 
 “Term Note Series Invested Amount” means, as of any date of determination, for any Series
of Term Notes, the highest Class Invested Amount for any Class of Term Notes included in such Series of Term Notes. 

“Termination Date” has the meaning set forth in Section 1 of the PC Repo Pricing Side Letter. 

“Total Assets” means PMC’s “Total Assets” as reported in field A240 of the Mortgage Banker’s Financial
Reporting Form in accordance with the requirements set forth in the Fannie Mae Lender Contract. 
 “Total Collections”
means, 
 (i) With respect to any Interim Payment Date, all Collections on the Participation Certificates or Eligible
Securities received during the related Collection Period and any other funds of the Issuer that the Issuer (or the Administrator on behalf of the Issuer) identifies to the Indenture Trustee to be treated as “Total Collections” for such
Interim Payment Date; and 
 (ii) with respect to any Payment Date, (A) all Collections on the Participation
Certificates or Eligible Securities received during the related Collection Period, plus (B) any income from Permitted Investments in Trust Accounts that have been established for the benefit of all Series of Notes, plus (C) any other funds
of the Issuer that the Issuer (or the Administrator on behalf of the Issuer) identifies to the Indenture Trustee to be treated as “Total Collections” for such Payment Date. 

“Total Excess Spread Schedule” means Schedule 4 to the PC Repurchase Agreement, as updated from time to time by PMC, as Repo
Seller. 
 “Transaction” has the meaning assigned to such term in the recitals to the PC Repurchase Agreement. 

“Transaction Documents” means, collectively, the Indenture, each Note Purchase Agreement, the PC Repurchase Agreement, the
Series 2017-VF1 Repurchase Agreement, the Participation Agreements, the PC Repo Guaranty, the PMH Repo Guaranty, the VFN Repo Guaranty, the Acknowledgment Agreement, the PMH Subordination Agreement, the Fee
Letter, the Participation Certificate Schedule, all Notes, the Trust Agreement, the Administration Agreement, each Indenture Supplement, the MSR Valuation Agent Agreement, the Disposition Management Agreement, if any, the Dedicated Account Control
Agreement and each of the other documents, instruments and agreements entered into on the date hereof and thereafter in connection with any of the foregoing or the transactions contemplated thereby. 

  
 194 

 “Transaction Notice” has the meaning assigned to such term in
Section 2.02 of the PC Repurchase Agreement. 
 “Transaction Register” has the meaning assigned to such term in
Section 9.03(b) of the PC Repurchase Agreement. 
 “Transfer” has the meaning set forth in Section 6.5(h) of the
Base Indenture. It is expressly provided that the term “Transfer” in the context of the Notes includes, without limitation, any distribution of the Notes by (i) a corporation to its shareholders, (ii) a partnership to its
partners, (iii) a limited liability company to its members, (iv) a trust to its beneficiaries or (v) any other business entity to the owners of the beneficial interests in such entity. 

“Transfer/Engagement Request” means a request that Fannie Mae transfer the Servicing Rights or New Servicing Rights, as
applicable, to the Indenture Trustee or a proposed new servicer Agreement. 
 “Transferee” has the meaning set forth in
Section 9.02(a) of the PC Repurchase 
 “Treasury Regulations” means regulations, including proposed or temporary
regulations, promulgated under the Code. References herein to specific provisions of proposed or temporary regulations shall include analogous provisions of final Treasury Regulations or other successor Treasury Regulations. 

“Trust” shall mean PMT ISSUER TRUST—FMSR, the Delaware statutory trust established pursuant to the Original Trust
Agreement and the Certificate of Trust and continued hereby which shall carry on its business operations under the name of “PMT ISSUER TRUST—FMSR”. 

“Trust Account or Trust Accounts” means, individually, any of the Collection and Funding Account, the Note Payment
Account, the Expense Reserve Account or the Series Reserve Account and any other account required under any Indenture Supplement, if any, and collectively, all of the foregoing. 

“Trust Agreement” means the trust agreement dated as of November 22, 2017 (the “Original Trust
Agreement”), as amended and restated by the Amended and Restated Trust Agreement, dated the Closing Date, by and between PMC and the Owner Trustee. 

“Trust Certificate” means a certificate substantially in the form set forth in Exhibit A of the Trust Agreement. 

“Trust Estate” means the trust estate established under this Base Indenture for the benefit of the Noteholders, which
consists of the property described in the Granting Clause, to the extent not released pursuant to Section 7.1 of the Base Indenture. 

  
 195 

 “Trust Officer” means any officer of the Owner Trustee who is authorized to
act for the Owner Trustee and whose name appears on a list of such officers furnished by the Owner Trustee to the Administrator and Indenture Trustee, as such list may be amended and supplemented from time to time. 

“Trust Property” means the property, or interests in property, constituting the Trust Estate from time to time. 

“UCC” or “Uniform Commercial Code” means the Uniform Commercial Code, as in effect in the relevant
jurisdiction. 
 “United States and U.S.” means the United States of America. 

“United States Person” means (i) A citizen or resident of the United States, (ii) a corporation or partnership (or
entity treated as a corporation or partnership for United States federal income tax purposes) created or organized in or under the laws of the United States, any one of the states thereof or the District of Columbia, (iii) an estate the income
of which is subject to United States federal income taxation regardless of its source or (iv) a trust if a court within the United States is able to exercise primary supervision over the administration of such trust, and one or more such United
States Persons have the authority to control all substantial decisions of such trust (or, to the extent provided in applicable Treasury regulations, certain trusts in existence on August 20, 1996 which are eligible to elect to be treated as United
States Persons). 
 “U.S. Anti-Money Laundering Laws” has the meaning set forth in Section 10.1(i) of the Base
Indenture. 
 “USDA” means the Rural Housing Service of the Rural Development Agency of the United States Department of
Agriculture, or any successor. 
 “USDA Loan” means a Mortgage Loan which is guaranteed by USDA, as evidenced by a USDA
Loan Guarantee Document. 
 “USDA Loan Guarantee Document” means a loan guarantee document issued by USDA in accordance
with 7 CFR § 3555.107. 
 “VA” means the U.S. Department of Veterans Affairs, an agency of the United States of
America, or any successor thereto including the Secretary of Veterans Affairs. 
 “VA Loan” means a Mortgage Loan which is
subject of a VA Loan Guaranty Agreement as evidenced by a loan guaranty certificate, or a Mortgage Loan which is a vendor loan sold by the VA. 

“VA Loan Guaranty Agreement” means the obligation of the United States to pay a specific percentage of a Mortgage Loan
(subject to a maximum amount) upon default of the mortgagor pursuant to the Servicemen’s Readjustment Act. 

  
 196 

 “Variable Funding Note or VFN” means any Note of a Series or
Class designated as “Variable Funding Notes” in the related Indenture Supplement. 
 “VFN Draw” means, for
any Funding Date, the amount to be borrowed on such date in relation to any VFNs pursuant to Section 4.3(b) of the Base Indenture. 

“VFN Draw Date” means any Funding Date on which a VFN Draw is to be made pursuant to Section 4.3(b) of the Base
Indenture. 
 “VFN Funding Source” means, with respect to a VFN that is not subject to a repurchase agreement, the VFN
Noteholder; with respect to a VFN that is subject to a repurchase agreement, the party that is the Repo Seller under such repurchase agreement. 

“VFN Noteholder” means the Noteholder of a VFN. 

“VFN Note Balance Adjustment Request” has the meaning set forth in Section 4.3(b)(i) of the Base Indenture. 

“VFN Principal Balance” means, any date, for any VFN or for any Series or Class of VFNs, as the context requires, the
Note Balance thereof as of the opening of business on the first day of the then-current Interest Accrual Period for such Series or Class minus all amounts previously paid during such Interest Accrual Period on such Note with respect to
principal (including any Additional Note Payments paid (or deemed paid) by the owner of the Owner Trust Certificate pursuant to Sections 4.4(b) or 4.5(e) of the Base Indenture plus the amount of any increase in the Note Balance of such Note
during such Interest Accrual Period prior to such date, which amount shall not exceed the Maximum VFN Principal Balance. 
 “VFN
Repo Buyer” has the meaning set forth in Section 2 of the Series 2017-VF1 Indenture Supplement. 

“VFN Repo Guaranty” means that certain guaranty, made by the Guarantor in favor of the Repo Buyer, guaranteeing payment to
the Repo Buyer of all amounts owing to the Repo Buyer from the Repo Seller pursuant to the Series 2017-VF1 Repurchase Agreement. 

“VFN Series Available Funds” means, for each Series of VFNs as of any Payment Date occurring during the Full Amortization
Period, after paying any amounts owed under Sections 4.5(a)(2)(i) and 4.5(a)(2)(ii) of the Base Indenture, the sum of the following: 

(i) such Series’ Series Allocation Percentage of any income from Permitted Investments in the Collection and Funding
Account; 
 (ii) such Series’ Series Allocation Percentage of all Collections on deposit in the Trust Accounts that are
not Series Reserve Accounts (prior to giving effect to any payments on such Payment Date); 

  
 197 

 (iii) such Series’ Series Allocation Percentage of any other funds of
the Issuer that the Issuer (or the Administrator on behalf of the Issuer) identifies to the Indenture Trustee in writing to be treated as “Available Funds” as of such Payment Date; and 

(iv) such other amounts designated as VFN Series Available Funds for the benefit of such Series of VFNs in the related
Indenture Supplement. 
 “VFN Series Invested Amount” means, as of any date of determination, for any Series of VFNs, the
highest Class Invested Amount for any Class of VFNs included in such Series of VFNs. 
 “Voting Interests” means
the aggregate voting power evidenced by the Notes, and each Outstanding Note’s Voting Interest within its Series equals the percentage equivalent of the fraction obtained by dividing that Note’s Note Balance by the aggregate Note Balance
of all Outstanding Notes within such Series; provided, however, that where the Voting Interests are relevant in determining whether the vote of the requisite percentage of Noteholders necessary to effect any consent, waiver, request or
demand shall have been obtained, the Voting Interests shall be deemed to be reduced by the amount equal to the Voting Interests (without giving effect to this provision) represented by the interests evidenced by any Note registered in the name of,
or in the name of a Person or entity holding for the benefit of, the Issuer, PMC or any Person that is an Affiliate of any of the Issuer or PMC (except with respect to the Series 2017-VF1 Notes which have been
sold by PMC to the VFN Repo Buyers under the Series 2017-VF1 Repurchase Agreement). The Indenture Trustee shall have no liability for counting a Voting Interest of any Person that is not permitted to be so
counted under the Indenture pursuant to the definition of “Outstanding” unless a Responsible Officer of the Indenture Trustee has actual knowledge that such Person is the Issuer or PMC or an Affiliate of either or both of the Issuer and
PMC (except with respect to the Series 2017-VF1 Notes which have been sold by PMC to the VFN Repo Buyers under the Series 2017-VF1 Repurchase Agreement). 

All actions, consents and votes under the terms and provisions of the Indenture (other than under any Indenture Supplement related to a specific Series) that
require a certain percentage of Voting Interests of all Series or any specified Series of Notes, such as the Series Required Noteholders of Series of Notes that are Variable Funding Notes or the Series Required Noteholders of each Series, as opposed
to the Majority Noteholders of all Outstanding Notes shall be deemed by each of the Issuer, the Indenture Trustee, the Administrator, the Servicer, the Administrative Agent and the Noteholders to require such designated percentage of Voting
Interests of each Outstanding Series and, in the event any one specified Series fails to provide the required percentage of Voting Interests with respect to any such action, consent or vote, then such action, consent or vote shall be deemed by the
Issuer, the Indenture Trustee, the Administrator, the Servicer, the Administrative Agent and the Noteholders to be not approved. 

  
 198 

 “Weighted Average Advance Rate” means, on any date of determination, with
respect to all Outstanding Series of Variable Funding Notes, a percentage equal to the weighted average of the Advance Rates for each Series of Variable Funding Notes then Outstanding (weighted based on the VFN Series Invested Amount of each Series
of Variable Funding Notes on such date). With respect to a specific Series of Variable Funding Notes, the “Weighted Average Advance Rate” shall equal the Advance Rate with respect to the Class within such Series of Variable Funding
Notes with the highest Advance Rates. 
 “WSFS” means Wilmington Savings Fund Society, FSB. 

  
 199EX-10.2

 Exhibit 10.2 

EXECUTION VERSION 
  

 
  

PMT ISSUER TRUST - FMSR, 
 as
Issuer 
 and 
 CITIBANK, N.A.,

 as Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary 

and 
 PENNYMAC CORP., 

as Administrator and Servicer 

and 
 CREDIT SUISSE FIRST BOSTON
MORTGAGE CAPITAL LLC, 
 as Administrative Agent 
  

 
 SERIES 2021-FT1 INDENTURE SUPPLEMENT 
 Dated as of March 30, 2021 

To 
 BASE INDENTURE 

Dated as of December 20, 2017 

(as amended from time to time) 

MSR COLLATERALIZED NOTES, 
 SERIES
2021-FT1 
  
  

 

 TABLE OF CONTENTS 

 

							
	 	 	 	  	PAGE	 
	 SECTION 1.
	 	CREATION OF THE SERIES 2021-FT1 TERM NOTES	  	 	1	 
			
	 SECTION 2.
	 	DEFINED TERMS	  	 	2	 
			
	 SECTION 3.
	 	FORM OF THE SERIES 2021-FT1 TERM NOTES; TRANSFER
RESTRICTIONS	  	 	11	 
			
	 SECTION 4.
	 	PAYMENTS AND ALLOCATION OF FUNDS ON PAYMENT DATES; NO SERIES
RESERVE ACCOUNT	  	 	12	 
			
	 SECTION 5.
	 	OPTIONAL REDEMPTION AND REFINANCING	  	 	12	 
			
	 SECTION 6.
	 	OPTIONAL EXTENSION OF STATED MATURITY DATE	  	 	13	 
			
	 SECTION 7.
	 	DETERMINATION OF NOTE INTEREST RATE AND BENCHMARK	  	 	13	 
			
	 SECTION 8.
	 	CONDITIONS PRECEDENT SATISFIED	  	 	15	 
			
	 SECTION 9.
	 	REPRESENTATIONS AND WARRANTIES	  	 	15	 
			
	 SECTION 10.
	 	AMENDMENTS	  	 	16	 
			
	 SECTION 11.
	 	COUNTERPARTS	  	 	18	 
			
	 SECTION 12.
	 	ENTIRE AGREEMENT	  	 	18	 
			
	 SECTION 13.
	 	LIMITED RECOURSE	  	 	18	 
			
	 SECTION 14.
	 	OWNER TRUSTEE LIMITATION OF LIABILITY	  	 	19	 
			
	 SECTION 15.
	 	CREDIT RISK RETENTION	  	 	19	 

  

  
 - i - 

 This SERIES 2021-FT1 INDENTURE SUPPLEMENT (this “Indenture Supplement”),
dated as of March 30, 2021, is made by and among PMT ISSUER TRUST – FMSR, a statutory trust organized under the laws of the State of Delaware, as issuer (the “Issuer”), CITIBANK, N.A., a national banking association, as
indenture trustee (the “Indenture Trustee”), as calculation agent (the “Calculation Agent”), as paying agent (the “Paying Agent”) and as securities intermediary (the “Securities
Intermediary”), PENNYMAC CORP., a corporation organized under the laws of the State of Delaware (“PMC”), as administrator (the “Administrator”) and as servicer (the “Servicer”), and CREDIT
SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC (“CSFB”), a Delaware limited liability company, as Administrative Agent (as defined herein). This Indenture Supplement relates to and is executed pursuant to that certain Base Indenture,
dated as of December 20, 2017, including the schedules and exhibits thereto (as supplemented hereby, as amended by Amendment No. 1 thereto, dated as of April 25, 2018, Amendment No. 2 thereto, dated as of July 31, 2020,
Amendment No. 3 thereto, dated as of October 20, 2020, Amendment No. 4 thereto, dated as of March 30, 2021 and as further amended, restated, supplemented or otherwise modified from time to time, the “Base
Indenture”), among the Issuer, PMC, the Indenture Trustee, the Calculation Agent, the Paying Agent, the Securities Intermediary, and CSFB, as Administrative Agent, and the “Administrative Agents” from time to time parties thereto,
all the provisions of which are incorporated herein as modified hereby and shall be a part of this Indenture Supplement as if set forth herein in full (the Base Indenture as so supplemented by this Indenture Supplement, collectively referred to as
the “Indenture”). 
 Capitalized terms used and not otherwise defined herein shall have the respective meanings given them
in the Base Indenture, and the rules of interpretation set forth in Section 1.2 of the Base Indenture shall apply equally herein. 

PRELIMINARY STATEMENT 

The Issuer has duly authorized the issuance of a Series of Term Notes, the Series 2021-FT1 Term Notes
(as defined below). The parties are entering into this Indenture Supplement to document the terms of the issuance of the Series 2021-FT1 Term Notes pursuant to the Base Indenture, which provides for the
issuance of Notes in multiple series from time to time. 
 Section 1. Creation of the Series
2021-FT1 Term Notes. 
 There are hereby created, effective as of the Issuance Date, the Series 2021-FT1 Term Notes, to be issued pursuant to the Base Indenture and this Indenture Supplement, to be known as “PMT ISSUER TRUST—FMSR MSR Collateralized Notes, Series
2021-FT1” (the “Series 2021-FT1 Term Notes”). The Series 2021-FT1 Term Notes will be rated and are not
subordinate to any other Series of Notes. The Series 2021-FT1 Term Notes are issued in one (1) Class of Term Notes with the Initial Note Balance, Stated Maturity Date, Note Interest Rate and other
terms as specified in this Indenture Supplement. The Series 2021-FT1 Term Notes shall be secured by the Trust Estate Granted to the Indenture Trustee pursuant to the Base Indenture. The Indenture Trustee shall
hold the Trust Estate as collateral security for the benefit of the Noteholders of the Series 2021-FT1 Term Notes and all other Series of Notes issued under the Base Indenture as described therein. In the
event that any term or provision contained herein with respect to the Series 2021-FT1 Term Notes shall conflict with or be inconsistent with any term or provision contained in the Base Indenture, the terms and
provisions of this Indenture Supplement shall govern to the extent of such conflict. 

  
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 Section 2. Defined Terms. 

With respect to the Series 2021-FT1 Term Notes and in addition to or in replacement of the definitions
set forth in Section 1.1 of the Base Indenture, the following definitions shall be assigned to the defined terms set forth below: 

“Administrative Agent” means, for so long as the Series 2021-FT1 Term Notes are
Outstanding: (i) with respect to the provisions of this Indenture Supplement, CSFB, or an Affiliate or successor thereto; and (ii) with respect to the provisions of the Base Indenture, together CSFB and such other parties as set forth in
any other Indenture Supplement, or a respective Affiliate or any respective successor thereto. For the avoidance of doubt, reference to “it” or “its” with respect to the Administrative Agent in this Indenture Supplement or in the
Base Indenture shall mean “them” and “their,” and reference to the singular herein and therein in relation to the Administrative Agent will be construed as if plural. 

“Advance Rate” means, with respect to the Series 2021-FT1 Term Notes, on any date of
determination, 80%; provided, that, upon the occurrence of an Advance Rate Trigger 1 Event, the Advance Rate will be decreased by 2.00% until the Advance Rate Trigger 1 Event has been cured in all respects subject to the satisfaction of the
Administrative Agent for two (2) consecutive months, at which point the Advance Rate, as applicable, will revert to 80%; provided, further, that, upon the occurrence of an Advance Rate Trigger 2 Event, the Advance Rate will
decrease by either (x) an additional 3.00% if an Advance Rate Trigger 1 Event is in effect or (y) 5.00% if an Advance Rate Trigger 1 Event is not in effect, such that the cumulative decrease of the Advance Rate upon the occurrence of an Advance
Rate Trigger 2 Event will be 5.00% until the Advance Rate Trigger 2 Event has been cured in all respects subject to the satisfaction of the Administrative Agent for two (2) consecutive months, at which point the Advance Rate, as applicable,
will be (x) if an Advance Rate Trigger 1 Event is then in effect, 78%, and (y) if no Advance Rate Trigger 1 Event is then in effect, 80%. 

“Advisers Act” has the meaning assigned to such term in Section 3(c) hereof. 

“Anticipated Amendments” means any future amendments made by the Administrator, with the consent of the Issuer, the Indenture
Trustee, the Servicer, the Administrative Agent, the VFN Noteholders, the Holders of the Series 2018-FT1 Notes (to the extent such Notes remain Outstanding), and Fannie Mae (solely to the extent required under
the Transaction Documents, including the Acknowledgment Agreement), which amend the Base Indenture, the Participation Agreements, and any other Transaction Documents as reasonably necessary to support the tax treatment of the Guarantor, including
adding PMH as a repo seller to the PC Repurchase Agreement and restructuring the Base Indenture so that PMH may leverage the Sold MSR Excess Spread PC; provided such amendments do not affect (i) the Indenture Trustee’s security
interest in the Collateral or (ii) the guarantee from the Guarantor as to the Participation Certificates. 
 “Applicable
Ratings” means, with respect to the Series 2021-FT1 Term Notes, “BBB-(sf)”. 

“Base Indenture” has the meaning assigned to such term in the Preamble. 

  
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 “Benchmark” means, with respect to any Interest Accrual Period, initially,
the Benchmark Rate for a one-month period, if such rate is available; provided, that if a Benchmark Transition Event and its related Benchmark Replacement Date have occurred with respect to the Benchmark Rate
or the then-current Benchmark, then “Benchmark” means the applicable Benchmark Replacement. 
 “Benchmark Determination
Date” means, (i) for the first Payment Date and the related Interest Accrual Period following the Issuance Date, March 23, 2021, and (ii) for each Payment Date and the related Interest Accrual Period following the first
Payment Date, means (1) if the Benchmark is LIBOR, the second (2nd) London Banking Day prior to the commencement of such Interest Accrual Period, and (2) if the Benchmark is not LIBOR, the date determined by the Designated Transaction
Representative in accordance with the Benchmark Replacement Conforming Changes for each Payment Date and the related Interest Accrual Period. 

“Benchmark Rate” means, with respect to any Interest Accrual Period with respect to which interest is to be calculated by
reference to the “Benchmark Rate,” (a) the LIBOR Index Rate for a one-month period, if such rate is available, (b) in the event that LIBOR and LIBOR Index Rate are phased out, and a new
benchmark intended as a replacement for LIBOR and LIBOR Index Rate is established or administered by the Financial Conduct Authority or ICE Benchmark Administration or other comparable authority, and such new benchmark with a one-month maturity is readily available through Bloomberg or a comparable medium, then the Designated Transaction Representative, with the Administrative Agent’s written consent, shall direct the Indenture
Trustee to utilize such new benchmark with a one-month maturity for all purposes hereof in place of the LIBOR Index Rate, and (c) if the LIBOR Index Rate cannot be determined or has been phased out and no
new benchmark under clause (b) has been established, the arithmetic average of the rates of interest per annum (rounded upward, if necessary, to the nearest 1/100 of 1%) at which deposits in U.S. Dollars in immediately available funds are
offered to the Administrative Agent at 11:00 a.m. (London, England time) two (2) London Banking Days before the beginning of such one-month period by three (3) or more major banks in the interbank
Eurodollar market selected by the Administrative Agent for delivery on the first day of and for a period equal to such one-month period and in an amount equal or comparable to the principal amount of the
portion of the Note Balance on which the “Benchmark Rate” is being calculated. 
 “Benchmark Reference Agreement”
means the first applicable alternative set forth in the order below that can be determined by the Designated Transaction Representative: 

(1) the Series 2017-VF1 Repurchase Agreement; 

(2) any other repurchase or financing facility entered into with respect to a Series of Variable Funding Notes that are Outstanding; 

(3) any other repurchase or financing facility entered into by the Servicer with respect to MSRs or mortgage loans; or 

(4) any other financing facility identified by the Designated Transaction Representative. 

  
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 “Benchmark Reference Time” means, with respect to any determination of the
Benchmark, (i) if the Benchmark is the Benchmark Rate, 11:00 a.m. (London time) on the second (2nd) London Banking Day prior to the commencement of such Interest Accrual Period and
(ii) if the Benchmark is not the Benchmark Rate, the time determined by the Designated Transaction Representative in accordance with the Benchmark Replacement Conforming Changes for each Payment Date and the related Interest Accrual Period.

 “Benchmark Replacement” means the first applicable alternative set forth in the order below that can be determined by
the Calculation Agent as of the applicable Benchmark Replacement Date: 
 (1) the sum of: (a) Term SOFR and (b) the Benchmark
Replacement Adjustment; 
 (2) the sum of: (a) Compounded SOFR and (b) the Benchmark Replacement Adjustment; 

(3) the sum of: (a) the alternate rate of interest that has been selected or recommended by the Relevant Governmental Body as the
replacement for the then-current Benchmark for the applicable Corresponding Tenor and (b) the Benchmark Replacement Adjustment; 
 (4)
the sum of: (a) the ISDA Fallback Rate and (b) the Benchmark Replacement Adjustment; or 
 (5) the sum of: (a) the alternate
rate of interest that has been selected by the Designated Transaction Representative as the replacement for the then-current Benchmark for the applicable Corresponding Tenor giving due consideration to any industry-accepted rate of interest as a
replacement for the then-current Benchmark for U.S. dollar denominated securitizations at such time and (b) the Benchmark Replacement Adjustment. 

“Benchmark Replacement Adjustment” means the first alternative set forth in the order below that can be determined by the
Designated Transaction Representative as of the applicable Benchmark Replacement Date: 
 (1) the spread adjustment, or method for
calculating or determining such spread adjustment, (which may be a positive or negative value or zero) that has been selected, endorsed or recommended by the Relevant Governmental Body for the applicable Unadjusted Benchmark Replacement; 

(2) if the applicable Unadjusted Benchmark Replacement is equivalent to the ISDA Fallback Rate, then the ISDA Fallback Adjustment; or 

(3) the spread adjustment (which may be a positive or negative value or zero) that has been selected by the Designated Transaction
Representative giving due consideration to any industry-accepted spread adjustment, or method for calculating or determining such spread adjustment, for the replacement of the then-current Benchmark with the applicable Unadjusted Benchmark
Replacement for U.S. dollar denominated securitization transactions at such time, and as reasonably necessary such that the parties are similarly situated to the period prior to the replacement of the LIBOR Index Rate. 

  
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 “Benchmark Replacement Conforming Changes” means, with respect to any
Benchmark Replacement, any technical, administrative or operational changes (including changes to the definition of “Interest Accrual Period,” timing and frequency of determining rates and making payments of interest, changes to the
definition of “Corresponding Tenor” solely when such tenor is longer than the Interest Accrual Period and other administrative matters) that the Designated Transaction Representative decides may be appropriate to reflect the adoption of
such Benchmark Replacement in a manner substantially consistent with the practices adopted with respect to the applicable Benchmark Reference Agreement, in each case as notified to the VFN Administrative Agent, the Indenture Trustee, the Calculation
Agent and the Administrative Agent prior to the inclusion of such Benchmark Replacement Conforming Changes in the Payment Date Report notifying Noteholders of such changes and such Benchmark Replacement Conforming Changes taking effect, which such
changes shall automatically become effective without further action on behalf of any party (upon inclusion in such Payment Date Report) to the extent that the Administrative Agent has not provided a written objection (in its reasonable discretion)
to such Benchmark Replacement Conforming Changes to each of the Designated Transaction Representative and the Indenture Trustee prior to the inclusion in the Payment Date Report. The Benchmark Replacement Conforming Changes will be prepared by the
Designated Transaction Representative and delivered to the Indenture Trustee and Calculation Agent for inclusion in the Payment Date Report together with an acknowledgement thereto by the VFN Administrative Agent. 

“Benchmark Replacement Date” means: 

(1) in the case of clause (1) or (2) of the definition of “Benchmark Transition Event” either (a) the date of the public
statement or publication of information referenced therein or (b) if later, and the Benchmark is the LIBOR Index Rate, then the date on which the administrator of the relevant Benchmark permanently or indefinitely ceases to provide such
Benchmark; or 
 (2) with respect to clause (3) of the definition of “Benchmark Transition Event” the first date of the public
statement or publication of information. 
 Note that if the Designated Transaction Representative determines that a Benchmark Transition
Event and its related Benchmark Replacement Date have occurred prior to the Benchmark Reference Time in respect of any determination of the Benchmark on any date, the Benchmark Replacement shall replace the then-current Benchmark for all purposes
with respect to the Notes in respect of such determination on such date and all determinations on all subsequent dates. However, if the initial Benchmark Replacement is any rate other than Term SOFR and the Designated Transaction Representative
later determines that Term SOFR can be determined, then a Benchmark Transition Event shall be deemed to have occurred and Term SOFR shall become the new Unadjusted Benchmark Replacement and shall, together with a new Benchmark Replacement Adjustment
for Term SOFR, replace the then-current Benchmark on the next Benchmark Determination Date for Term SOFR. 
 For the avoidance of doubt, if
the event giving rise to the applicable Benchmark Replacement Date occurs on the same day as, but earlier than, the Benchmark Reference Time in respect of any determination, the Benchmark Replacement Date shall be deemed to have occurred prior to
the Benchmark Reference Time for such determination. 

  
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 “Benchmark Transition Event” means the occurrence of one or more of the
following events with respect to the then-current Benchmark: 
 (1) a public statement or publication of information by or on behalf of the
administrator of the Benchmark announcing that the administrator has ceased or will cease to provide the Benchmark permanently or indefinitely, provided that, at the time of such statement or publication, there is no successor administrator that
will continue to provide the Benchmark; 
 (2) a public statement or publication of information by the regulatory supervisor for the
administrator of the Benchmark, the central bank for the currency of the Benchmark, an insolvency official with jurisdiction over the administrator for the Benchmark, a resolution authority with jurisdiction over the administrator for the Benchmark
or a court or an entity with similar insolvency or resolution authority over the administrator for the Benchmark, which states that the administrator of the Benchmark has ceased or will cease to provide the Benchmark permanently or indefinitely,
provided that, at the time of such statement or publication, there is no successor administrator that will continue to provide the Benchmark; or 

(3) a public statement or publication of information by the regulatory supervisor for the administrator of the Benchmark announcing that the
Benchmark is no longer representative. 
 “Collection Period” means, (i) for the first Interim Payment Date or Payment
Date, the period beginning on March 22, 2021 and ending at the end of the day before the Determination Date for such Interim Payment Date or Payment Date, and (ii) for each subsequent Interim Payment Date or Payment Date, the period
beginning at the opening of business on the most recent preceding Determination Date and ending as of the close of business on the day before the Determination Date for such Interim Payment Date or Payment Date. 

“Compounded SOFR” means the compounded average of SOFRs for the applicable Corresponding Tenor, with the rate, or methodology
for this rate, and conventions for this rate (which, for example, may be compounded in arrears with a lookback and/or suspension period as a mechanism to determine the interest amount payable prior to the end of each Interest Period or compounded in
advance) being established by the Designated Transaction Representative in accordance with: 
 (1) the rate, or methodology for this rate,
and conventions for this rate selected or recommended by the Relevant Governmental Body for determining compounded SOFR; provided that: 

(2) if, and to the extent that, the Designated Transaction Representative determines that Compounded SOFR cannot be determined in accordance
with clause (1) above, then the rate, or methodology for this rate, and conventions for this rate that have been selected by the Designated Transaction Representative giving due consideration to any industry-accepted market practice for similar
U.S. dollar denominated securitization transactions at such time. 
 “Corporate Trust Office” means the corporate trust
offices of the Indenture Trustee at which at any particular time its corporate trust business with respect to the Issuer shall be administered, which offices at the Issuance Date are located at Citibank, N.A., Corporate and Investment Banking, 388
Greenwich Street, 14th Floor, New York, NY 10013, Attention: PMT ISSUER TRUST – FMSR MSR Collateralized Notes, including for Note transfer, exchange or surrender purposes. 

  
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 “Corresponding Tenor” means one month. 

“Cumulative Interest Shortfall Amount Rate” means, with respect to the Series
2021-FT1 Term Notes, 2.00% per annum. 
 “Default Supplemental Fee” means,
for the Series 2021-FT1 Term Notes and each Payment Date during the Full Amortization Period and on the date of final payment of such Notes (if the Full Amortization Period is continuing on such final payment
date), a fee equal to (i) the related Cumulative Default Supplemental Fee Shortfall Amount plus (ii) the product of (a) the Default Supplemental Fee Rate multiplied by (b) the average daily Note Balance from and including
the prior Payment Date to but excluding such Payment Date or the date of final payment of the Series 2021-FT1 Term Notes, as applicable, multiplied by (c) a fraction, the numerator of which is the
number of days elapsed from and including the prior Payment Date (or, if the Full Amortization Period commenced after the prior Payment Date, the number of days elapsed from and including the date on which such Full Amortization Period commenced) to
but excluding the current Payment Date and the denominator of which equals 360. 
 “Default Supplemental Fee Rate” means,
with respect to the Series 2021-FT1 Term Notes, 2.00% per annum. 
 “Designated
Transaction Representative” means the Administrator. 
 “Early Amortization Event Payment Amount” means, with
respect to the Series 2021-FT1 Term Notes, one-thirty-sixth (1/36) of the Note Balance of the Series 2021-FT1 Term Notes as of
the date on which an Early Amortization Event occurs. 
 “Federal Reserve Bank of New York’s Website” means the
website of the Federal Reserve Bank of New York at http://www.newyorkfed.org, or any successor source. 
 “Indenture” has
the meaning assigned to such term in the Preamble. 
 “Indenture Supplement” has the meaning assigned to such term in the
Preamble. 
 “Initial Note Balance” means, for the Series 2021-FT1 Term Notes,
$350,000,000. 
 “Initial Purchasers” means Citigroup Global Markets Inc., Credit Suisse Securities (USA) LLC and Goldman
Sachs & Co. LLC, as applicable. 
 “Interest Accrual Period” means, for the Series
2021-FT1 Term Notes, (i) with respect to the first Payment Date, the period that will commence on the Issuance Date and will end on the day immediately preceding the Payment Date in April 2021, and
(ii) with respect to any subsequent Payment Dates, the period that will commence on the immediately preceding Payment Date and end on the day immediately preceding the current Payment Date. The Interest Payment Amount for the Series 2021-FT1 Term Notes for each Payment Date will be calculated based on the Interest Day Count Convention. The first Payment Date with respect to the Series 2021-FT1 Term Notes
will be April 26, 2021. 

  
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 “Interest Day Count Convention” means, with respect to the Series 2021-FT1 Term Notes, the actual number of days in the related Interest Accrual Period, divided by 360. 

“ISDA Definitions” means the 2006 ISDA Definitions published by the International Swaps and Derivatives Association, Inc. or
any successor thereto, as amended or supplemented from time to time, or any successor definitional booklet for interest rate derivatives published from time to time. 

“ISDA Fallback Adjustment” means the spread adjustment, (which may be a positive or negative value or zero) that would apply
for derivatives transactions referencing the ISDA Definitions to be determined upon the occurrence of an index cessation event with respect to the Benchmark for the applicable tenor. 

“ISDA Fallback Rate” means the rate that would apply for derivatives transactions referencing the ISDA Definitions to be
effective upon the occurrence of an index cessation date with respect to the Benchmark for the applicable tenor excluding the applicable ISDA Fallback Adjustment. 

“Issuance Date” means March 30, 2021. 

“LIBOR” means the London Interbank Offered Rate. 

“LIBOR Index Rate” means for a one-month period, LIBOR per annum (rounded
upward, if necessary, to the next higher one hundred-thousandth of a percentage point) for deposits in U.S. Dollars for a one-month period, which appears on the LIBOR01 Page as of 11:00 a.m. (London, England
time) on the Benchmark Determination Date. 
 “LIBOR01 Page” means the display designated as “LIBOR01 Page” on
the Reuters Service (or such other page as may replace the LIBOR01 Page on that service or such other service as may be nominated by the ICE Benchmark Administration as an information vendor for the purpose of displaying ICE Benchmark Administration
interest settlement rates for U.S. Dollar deposits). 
 “London Banking Day” means any day on which commercial banks
and foreign exchange markets settle payment in both London and New York City. 
 “Margin” means, for the Series 2021-FT1 Term Notes, 3.00% per annum. 
 “Note Interest Rate” means, for the
Series 2021-FT1 Term Notes, with respect to any Interest Accrual Period, the sum of (a) Benchmark plus (b) the Margin. 

“Note Maximum Principal Balance” means, with respect to the Series 2021-FT1 Term
Notes, the Initial Note Balance or, a lesser amount if the Series 2021-FT1 Term Notes are redeemed in part. 

  
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 “Note Purchase Agreement” means that certain Series 2021-FT1 Note Purchase Agreement, dated as of March 24, 2021, by and among the Issuer, CSFB, as Administrative Agent on behalf of the Initial Purchasers, PMC, as Administrator and Servicer, and the Initial
Purchasers, that relates to the purchase of the Series 2021-FT1 Term Notes, as amended, restated, supplemented or otherwise modified from time to time. 

“Note Rating Agency” means Kroll Bond Rating Agency, LLC. 

“Optional Extension” has the meaning assigned to such term in Section 6 of this Indenture
Supplement. 
 “Optional Extension Date” means March 25, 2026. 

“Plan Fiduciary” has the meaning assigned to such term in Section 3(c) hereof. 

“PMC” has the meaning assigned to such term in the Preamble. 

“Regulation RR” has the meaning assigned to such term in Section 15 of this Indenture Supplement.

 “Relevant Governmental Body” means the Federal Reserve Board and/or the Federal Reserve Bank of New York, or a committee
officially endorsed or convened by the Federal Reserve Board and/or the Federal Reserve Bank of New York or any successor thereto. 

“Scheduled Principal Payment Amount” means, with respect to any Payment Date following a Scheduled Principal Payment Event,
an amount equal to the sum of the Series Principal Payment Amounts due and payable on each Series of Terms Notes then outstanding. 

“Scheduled Principal Payment Events” means, for any Payment Date with respect to the Series
2021-FT1 Term Notes, a Series Principal Payment Amount will be due on a one-time basis on any Payment Date following the occurrence of any of the following events (each,
a “Scheduled Principal Payment Event”): 
 (i) the unpaid principal balance of the Portfolio is less than $30 billion
and a Borrowing Base Deficiency exists as of the close of business on the last day of the related Collection Period, prior to the paydown of the VFN Principal Balance of any Outstanding Class of VFNs from the preceding Payment Date; 

(ii) the unpaid principal balance of the Portfolio is less than $28 billion and a Borrowing Base Deficiency exists as of the close of
business on the last day of the related Collection Period, prior to the paydown of the VFN Principal Balance of any Outstanding Class of VFNs from the preceding Payment Date; 

(iii) the unpaid principal balance of the Portfolio is less than $26 billion and a Borrowing Base Deficiency exists as of the close of
business on the last day of the related Collection Period, prior to the paydown of the VFN Principal Balance of any Outstanding Class of VFNs from the preceding Payment Date; 

  
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 (iv) the unpaid principal balance of the Portfolio is less than $24 billion and a
Borrowing Base Deficiency exists as of the close of business on the last day of the related Collection Period, prior to the paydown of the VFN Principal Balance of any Outstanding Class of VFNs from the preceding Payment Date; or 

(v) the unpaid principal balance of the Portfolio is less than $22 billion and a Borrowing Base Deficiency exists as of the close of
business on the last day of the related Collection Period, prior to the paydown of the VFN Principal Balance of any Outstanding Class of VFNs from the preceding Payment Date. 

“Series 2017-VF1 Repurchase Agreement” means the Amended and Restated Master
Repurchase Agreement, dated as of June 29, 2018, among Credit Suisse First Boston Mortgage Capital LLC, as administrative agent, the repo buyers from time to time party thereto, and PMC, as repo seller. 

“Series 2021-FT1 Term Notes” has the meaning assigned to such term in
Section 1 of this Indenture Supplement. 
 “Series Principal Payment Amount” means, with respect
to the Series 2021-FT1 Term Notes, upon the occurrence of a Scheduled Principal Payment Event, an amount equal to the product of (i) the Series Allocation Percentage of the Series 2021-FT1 Term Notes and (ii) the product of (a) $2,000,000,000, (b) the Market Value Percentage (as calculated using clause (b)(ii) of the definition thereof) and (c) the Advance Rate of the Series 2021-FT1 Term Notes. 
 “Series Required Noteholders” means, for so long as the Series 2021-FT1 Term Notes are Outstanding, Noteholders of the Series 2021-FT1 Term Notes constituting the Majority Noteholders of such Series. 

“SOFR” means, with respect to any day, the secured overnight financing rate published for such day by the Federal Reserve
Bank of New York, as the administrator of the benchmark (or a successor administrator) on the Federal Reserve Bank of New York’s Website. 

“Specified Call Premium Amount” means, as of any date of determination in respect of the Series 2021-FT1 Term Notes, the greater of (i) $0 and (ii) (a) the quotient of: (1) the product of: (x) the Note Interest Rate multiplied by (y) the outstanding Note Balance
divided by (2) 360 multiplied by (b) the positive excess, if any, of 360 over the number of days from and including the date the Series 2021-FT1 Term Notes were issued through and including the date on which the Series 2021-FT1
Term Notes are redeemed. 
 “Stated Maturity Date” means, for Series 2021-FT1 Term Notes, March 25, 2026, or if
extended pursuant to Section 6 hereof, March 27, 2028. 

“Step-Up Fee” means, with respect to the Series
2021-FT1 Term Notes, for each Payment Date during the Step-Up Fee Period and on the date of final payment of the Series 2021-FT1
Term Notes (if the Step-Up Fee Period is continuing on such final payment date), a fee equal to (1) the related Cumulative Step-Up Fee Shortfall Amount plus
(2) the product of (i) the Step-Up Fee Rate multiplied by (ii) the average daily Note Balance from and including the prior Payment Date to but excluding such Payment Date or date of final
payment of the Series 2021-FT1 Term Notes multiplied by (iii) a fraction, (A) the numerator of which is the number of days elapsed from and including the prior Payment Date to, but excluding,
the current Payment Date or date of final payment and (B) the denominator of which equals 360. 

  
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 “Step-Up Fee Period” means the
period that begins on the Optional Extension Date and ends on the date on which the Series 2021-FT1 Term Notes are no longer outstanding. 

“Step-Up Fee Rate” means, with respect to the Series 2021-FT1 Term Notes, 0.50%
per annum. 
 “Transaction Parties” has the meaning assigned to such term in Section 3(c)
hereof. 
 “Term SOFR” means the forward-looking term rate for the applicable Corresponding Tenor based on SOFR that has
been selected or recommended by the Relevant Governmental Body. 
 “Unadjusted Benchmark Replacement” means the Benchmark
Replacement excluding the applicable Benchmark Replacement Adjustment. 
 “VFN Administrative Agent” means the
administrative agent or a similar person specified in the related Benchmark Reference Agreement. 
 “WSFS” has the meaning
assigned to such term in Section 14 hereof. 
 Section 3. Form of the Series 2021-FT1 Term Notes; Transfer
Restrictions. 
 (a) Subject to the terms and provisions of Section 5.4 of the Base Indenture, the Series 2021-FT1 Term Notes shall only be issued as a Book-Entry Note, and the form of Global Rule 144A Note that may be used to evidence the Series 2021-FT1 Term Notes in the
circumstances described in Section 5.2(c) of the Base Indenture is attached to the Base Indenture as Exhibit A-1. The Series 2021-FT1 Term Notes shall not be issued
as Regulation S Notes nor shall any Series 2021-FT1 Term Notes be sold in offshore transactions in reliance on Regulation S. 

The Series 2021-FT1 Term Notes will be issued in minimum denominations of $100,000 and integral
multiples of $1,000 in excess thereof. 
 (b) The Series 2021-FT1 Term Notes will not be registered
under the 1933 Act, or the securities laws of any other jurisdiction. The sale, pledge or other transfer of any Series 2021- FT1 Term Note or any interest therein will be subject to the restrictions described below. The Series 2021-FT1 Term Notes will bear a legend referring to the transfer restrictions thereof. None of the Issuer or the Initial Purchasers will register the Series 2021-FT1 Term
Notes under the 1933 Act, register or qualify the Series 2021-FT1 Term Notes under the securities laws of any state or other jurisdiction or provide registration rights to any purchaser. 

In addition to any provisions set forth in Section 6.5 of the Base Indenture, any Noteholder of the Series
2021-FT1 Term Notes may only resell, pledge or transfer its beneficial interest in a Series 2021-FT1 Term Note to a person that the transferor reasonably believes is,
and who has certified (or, in the case of Book-Entry Notes, is deemed to have certified) that it is a Qualified Institutional Buyer that purchases for its own account or for the account of a Qualified Institutional Buyer and to whom notice is given
that the resale, pledge or transfer is made in reliance on Rule 144A. The Series 2021-FT1 Term Notes may not be resold, pledged or transferred pursuant to Regulation S. 

  
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 Section 4. Payments and Allocation of Funds on Payment Dates; No Series Reserve
Account. 
 (a) Except as otherwise expressly set forth herein, the Paying Agent shall make payments on the Series 2021-FT1 Term Notes on each Payment Date in accordance with Section 4.5 of the Base Indenture. 
 (b)
There will be no Series Reserve Account for the Series 2021-FT1 Term Notes, and the Noteholders of the Series 2021-FT1 Term Notes will not be entitled to receive
payments made pursuant to any Series Reserve Account in place in respect of any other Series of Notes, except as otherwise set forth in the Base Indenture. 

(c) The Administrative Agent and the Issuer further confirm that the Series 2021-FT1 Term Notes issued
on the Issuance Date pursuant to this Indenture Supplement shall be issued in the name of “Cede & Co.”, as nominee of DTC, pursuant to a letter agreement between the Issuer and DTC, to be dated as of the Issuance Date. The Issuer
and the Administrative Agent hereby direct the Indenture Trustee to issue the Series 2021-FT1 Term Notes in the name of “Cede & Co”. 

Section 5. Optional Redemption and Refinancing. 

(a) The Issuer may, at any time, subject to Section 13.1 of the Base Indenture, upon at least five (5) Business Days’ prior
written notice to the Administrative Agent, the Indenture Trustee and the Noteholders of the Series 2021-FT1 Term Notes, redeem in whole or in part (so long as, in the case of any partial redemption,
(i) such redemption is funded using the proceeds of the issuance and sale of one or more new Classes of Notes or from any other cash or funds of PMC and not Collections on the MSRs, and (ii) the Series
2021-FT1 Term Notes are redeemed on a pro rata basis based on their related Note Balances), and/or terminate and cause retirement of the Series 2021-FT1 Term
Notes. In anticipation of a redemption of the Series 2021-FT1 Term Notes at the end of their Revolving Period, the Issuer may issue a new Series or one or more Classes of Notes within the ninety (90) day
period prior to the end of such Revolving Period and reserve the cash proceeds of the issuance for the sole purpose of paying the principal balance and all accrued and unpaid interest on the Series 2021-FT1
Term Notes, on the last day of their Revolving Period. Any amendment to this Indenture Supplement executed to effect an optional redemption may be entered into without consent of the Noteholders of the Series
2021-FT1 Term Notes or of any other Notes issued under the Base Indenture (but with satisfaction of other requirements for amendments entered into without Noteholder consent). Any Notes issued in replacement
for the Series 2021-FT1 Term Notes will have the same rights and privileges as the Class of Series 2021-FT1 Term Notes that was refinanced with the related proceeds
thereof; provided, such replacement Notes may have different Stated Maturity Dates and different Note Interest Rates. 
 (b) If the
Issuer redeems the Series 2021-FT1 Term Notes prior to the Payment Date occurring within twelve (12) months following the Issuance Date, the Issuer shall pay to the Noteholders of the Series 2021-FT1 Term Notes as part of the Redemption Amount an amount equal to the Specified Call Premium Amount. 

  
 12 

 Section 6. Optional Extension of Stated Maturity Date. 

The Administrator, on behalf of the Issuer, may by written notice to the Administrative Agent and the Indenture Trustee, request a single
extension of the Stated Maturity Date for the Series 2021-FT1 Term Notes at least fifteen (15) days prior to the Optional Extension Date (the “Optional Extension”); provided that the
Acknowledgment Agreement is amended to extend the Stop-Loss Cap Period through March 30, 2028. To the extent the Administrator has exercised the Optional Extension and the Stop-Loss Cap Period of the Acknowledgment Agreement has been extended
through March 30 2028, the Stated Maturity Date will be extended on the Optional Extension Date such that, after giving effect to such extension, the Stated Maturity Date will be two (2) years after the Stated Maturity Date in effect
immediately prior to exercise of the Optional Extension. The Stated Maturity Date of the Series 2021-FT1 Term Notes cannot be extended past the date which is two (2) years following the initial Stated
Maturity Date in effect immediately prior to exercise of the Optional Extension and the last day of the Stop-Loss Cap Period. Upon exercise of the Optional Extension, during the Step-Up Fee Period, the Step-Up Fee will apply to the Series 2021-FT1 Term Notes. 
 Section 7. Determination of Note
Interest Rate and Benchmark. 
 (a) At least one (1) Business Day prior to each Determination Date, the Calculation Agent shall
calculate the Note Interest Rate for the related Interest Accrual Period and the Interest Payment Amount for the Series 2021-FT1 Term Notes for the upcoming Payment Date, and include a report of such amount in
the related Payment Date Report. 
 (b) On each Benchmark Determination Date, the Calculation Agent will calculate the Benchmark for the
succeeding Interest Accrual Period for the related Series 2021-FT1 Term Notes on the basis of the procedures specified in the definition of “Benchmark.” 

(c) In connection with the implementation of a Benchmark Replacement, the Designated Transaction Representative will have the right from time
to time to make Benchmark Replacement Conforming Changes as described in the definition thereof. 
 (d) Notwithstanding the foregoing, if
prior to the occurrence of a Benchmark Transition Event and its related Benchmark Replacement Date a published LIBOR Index Rate is unavailable, the Benchmark will be determined on the basis of the rates at which deposits in dollars are offered by
major banks selected by the Designated Transaction Representative. If the banks selected by the Designated Transaction Representative are not quoting rates at the time the LIBOR Index Rate is to be determined for such Interest Accrual Period, the
LIBOR Index Rate for the related Interest Accrual Period will be the same as the LIBOR Index Rate for the immediately preceding Interest Accrual Period until the occurrence of a Benchmark Transition Event and its related Benchmark Replacement Date.
The Calculation Agent will calculate the Benchmark for each Interest Accrual Period on the related Benchmark Determination Date. The Indenture Trustee (in any capacity in which it acts) shall have no duty, obligation or responsibility to determine
whether a Benchmark Transition Event has occurred or to select an alternative index, and shall have no liability for the Designated Transaction Representative’s selection of such alternative index. 

  
 13 

 (e) A Benchmark Transition Event occurred on March 5, 2021. Notice or materials
relating to the occurrence of any additional Benchmark Transition Event, any Benchmark Replacement Date, the determination of a Benchmark Replacement and the making of any Benchmark Conforming Changes shall be made available with the relevant
Payment Date Report. Notwithstanding anything in the Base Indenture, any Indenture Supplement or any other Transaction Document to the contrary, upon the inclusion of such information in the Payment Date Report, the Base Indenture, any Indenture
Supplement or any other relevant Transaction Document, as applicable, shall be deemed to have been amended to reflect the new Unadjusted Benchmark Replacement, Benchmark Replacement Adjustment and/or Benchmark Replacement Conforming Changes without
further compliance with the amendment provisions of the Base Indenture, any Indenture Supplement or any other relevant Transaction Document. 

(f) Any determination, decision or election that may be made by the Designated Transaction Representative in connection with a Benchmark
Transition Event or a Benchmark Replacement as described above, including any determination with respect to a tenor, rate or adjustment or of the occurrence or non-occurrence of an event, circumstance or date
and any decision to take or refrain from taking any action or any selection, shall be conclusive and binding absent manifest error, may be made in the Designated Transaction Representative’s sole discretion, and, notwithstanding anything to the
contrary in the Transaction Documents, shall become effective without consent from any other party, except for the Administrative Agent, which will have the right to provide its written objection to the Calculation Agent and the Designated
Transaction Representative with respect to any such actions in its reasonable discretion within thirty (30) days of notice of such changes from the Designated Transaction Representative, in which case such proposed changes will not come into
effect and the Calculation Agent shall continue to use the most recent Benchmark until resolved. In the event that the Administrative Agent provides such written objection, the Administrative Agent and the Designated Transaction Representative shall
work in good faith to resolve the issues related to the Unadjusted Benchmark Replacement, Benchmark Replacement Adjustment and/or Benchmark Replacement Conforming Changes such that the parties are similarly situated to the period prior to the
replacement of the LIBOR Index Rate. The Designated Transaction Representative shall provide notice of any determination, decision or election made by the Designated Transaction Representative in connection with a Benchmark Transition Event or a
Benchmark Replacement as described above at least thirty (30) days prior to the proposed inclusion of such changes in the related Payment Date Report. None of the Issuer, Owner Trustee, the Indenture Trustee, the Calculation Agent, the
Administrator, the Designated Transaction Representative, the Administrative Agent, the Servicer or any other transaction party will have any liability for any determination made by or on behalf of the Issuer by any party, including the Designated
Transaction Representative or any action or inaction by the Administrative Agent, in connection with a Benchmark Transition Event or a Benchmark Replacement as described above, and each Noteholder, by its acceptance of a Note or a beneficial
interest in a Note, shall be deemed to waive and release any and all claims against any of the Issuer, Owner Trustee, the Indenture Trustee, the Calculation Agent, the Administrator, the Designated Transaction Representative, the Administrative
Agent or the Servicer relating to any such determinations. 

  
 14 

 (g) The establishment of the Benchmark Rate by the Calculation Agent and the Designated
Transaction Representative, as applicable, and the Calculation Agent’s subsequent calculation of the Note Interest Rate and the Interest Payment Amount on the Series 2021-FT1 Term Notes for the relevant
Interest Accrual Period based on the determination made by the Designated Transaction Representative, in the absence of manifest error, will be final and binding. 

(h) The Designated Transaction Representative and its directors, officers, agents or employees shall not be liable for any action taken or
omitted to be taken by it under or in connection with this Indenture Supplement or the other Transaction Documents in its capacity as Designated Transaction Representative, other than action or inaction undertaken with gross negligence, willful
misconduct or bad faith. Without limiting the foregoing and notwithstanding any understanding to the contrary, no Noteholder shall have any right of action whatsoever against the Designated Transaction Representative as a result of the Designated
Transaction Representative acting or refraining from acting under this Indenture Supplement, the Notes or any of the other Transaction Documents in its own interests or otherwise, other than as a result of gross negligence, willful misconduct or bad
faith by the Designated Transaction Representative. 
 Section 8. Conditions Precedent Satisfied. 

The Issuer hereby represents and warrants to the Noteholders of the Series 2021-FT1 Term Notes and the
Indenture Trustee that, as of the Issuance Date (a) the Series 2021-FT1 Term Notes are rated “BBB-(sf)” by the Note Rating Agency and (b) each of the
conditions precedent set forth in the Base Indenture, including but not limited to those conditions precedent set forth in Section 6.10(b) of the Base Indenture and Article XII thereof, as applicable, to the issuance of the Series 2021-FT1 Term Notes has been satisfied or waived in accordance with the terms thereof. 

Section 9. Representations and Warranties. 

The Issuer, the Administrator, the Servicer and the Indenture Trustee hereby restate as of the related Issuance Date, or as of such other date
as is specifically referenced in the body of such representation and warranty, all of the representations and warranties set forth in Sections 9.1, 10.1 and 11.14, respectively, of the Base Indenture. 

The Administrator hereby represents and warrants that it is not in default with respect to any material contract under which a default should
reasonably be expected to have a material adverse effect on the ability of the Administrator to perform its duties under this Indenture or any Indenture Supplement, or with respect to any order of any court, administrative agency, arbitrator or
governmental body which would have a material adverse effect on the transactions contemplated hereunder, and no event has occurred which with notice or lapse of time or both would constitute such a default with respect to any such contract or order
of any court, administrative agency, arbitrator or governmental body. 
 PMC hereby represents and warrants that it is not in default with
respect to any material contract under which a default should reasonably be expected to have a material adverse effect on the ability of PMC to perform its duties under this Indenture, any Indenture Supplement or any Transaction Document to which it
is a party, or with respect to any order of any court, administrative agency, arbitrator or governmental body which would have a material adverse effect on the transactions contemplated hereunder, and no event has occurred which with notice or lapse
of time or both would constitute such a default with respect to any such contract or order of any court, administrative agency, arbitrator or governmental body. 

  
 15 

 Section 10. Amendments. 

(a) Notwithstanding any provisions to the contrary in Article XII of the Base Indenture but subject to the provisions set forth in Sections
12.1 and 12.3 of the Base Indenture, without the consent of the Noteholders of any Notes but with the consent of the Issuer (evidenced by its execution of such amendment), the Indenture Trustee, the Administrator, the Servicer (solely in the case of
any amendment that adversely affects the rights or obligations of the Servicer or adds new obligations or increases existing obligations of the Servicer), and the Administrative Agent, at any time and from time to time, upon delivery of an Issuer
Tax Opinion and upon delivery by the Issuer to the Indenture Trustee of an Officer’s Certificate to the effect that the Issuer reasonably believes that such amendment will not have a material Adverse Effect, may amend any Transaction Document
for any of the following purposes: (i) to correct any mistake or typographical error or cure any ambiguity, or to cure, correct or supplement any defective or inconsistent provision therein or in any other Transaction Document; (ii) to
amend any other provision of this Indenture Supplement. 
 (b) Notwithstanding any provisions to the contrary in Section 6.10 or Article
XII of the Base Indenture except for amendments otherwise permitted as described in Sections 12.1 and 12.2 of the Base Indenture and in the immediately preceding paragraph, no supplement, amendment or indenture supplement entered into with respect
to the issuance of a new Series of Notes or pursuant to the terms and provisions of Section 12.2 of the Base Indenture may, without the consent of the Series Required Noteholders in respect of the Series
2021-FT1 Term Notes, supplement, amend or revise any term or provision of this Indenture Supplement; provided, that with respect to the following amendments, the consent of each Noteholder of each
Outstanding Series 2021-FT1 Term Notes materially and adversely affected thereby shall be required: 
  

	 	(i)	 any change to the scheduled payment date of any payment of interest on any Note held by such Noteholder, or
change a Payment Date or Stated Maturity Date of any Note held by such Noteholder; 

  

	 	(ii)	 any reduction of the Note Balance of, or the Note Interest Rate, the
Step-Up Fee Rate or the Default Supplemental Fee Rate on any Notes held by such Noteholder, or change the method of computing the Note Balance or Note Interest Rate in a manner that is adverse to such
Noteholder; 

  

	 	(iii)	 any impairment of the right to institute suit for the enforcement of any payment on any Note held by such
Noteholder; 

  

	 	(iv)	 any reduction of the percentage of Noteholders of the Outstanding Notes (or of the Outstanding Notes of any
Series or Class), for which consent is required for any such amendment, or the consent of whose Noteholders is required for any waiver of compliance with the provisions of the Indenture or any Indenture Supplement or of defaults thereunder and their
consequences, provided for in the Base Indenture or any Indenture Supplement; 

  
 16 

	 	(v)	 any modification of any amendment of the Indenture, except to increase any percentage of Noteholders required
to consent to any such amendment or to provide that other provisions of the Indenture or any Indenture Supplement cannot be modified or waived without the consent of the Noteholder of each outstanding Note adversely affected thereby;

  

	 	(vi)	 any modification to permit the creation of any lien or other encumbrance on the collateral that is prior to the
lien in favor of the Indenture Trustee for the benefit of the Noteholders of the Notes; 

  

	 	(vii)	 any modification to change the method of computing the amount of principal of, or interest on, any Note held by
such Noteholder on any date; 

  

	 	(viii)	 any modification to increase any Advance Rates in respect of Notes held by such Noteholder or eliminate or
decrease any collateral value exclusions in respect of Notes held by such Noteholder; or 

  

	 	(ix)	 any change, modification or waiver of any Scheduled Principal Payment Amount. 

(c) For the avoidance of doubt, the consent of the Servicer is not required for (i) the waiver of any Event of Default or (ii) any
other modification or amendment to any Event of Default except those related to the actions and omissions of the Servicer. 
 (d) For the
avoidance of doubt, the Issuer and the Administrator hereby covenant that the Issuer shall not issue any future Series of Notes without designating an entity to act as “Administrative Agent” under the related Indenture Supplement with
respect to such Series of Notes. 
 (e) Any amendment of this Indenture Supplement which affects the rights, duties, immunities, obligations
or liabilities of the Owner Trustee in its capacity as owner trustee under the Trust Agreement shall require the written consent of the Owner Trustee.  

(f) Notwithstanding any provisions to the contrary in Article XII of the Base Indenture but subject to the provisions set forth in Sections
12.2 and 12.3 of the Base Indenture, with the consent of the Issuer, the Indenture Trustee, the Servicer, the Administrative Agent, the VFN Noteholders, the Holders of the Series 2018-FT1 Notes (to the extent
such Notes remain Outstanding), and Fannie Mae (solely to the extent required under the Transaction Documents, including the Acknowledgment Agreement), at any time and from time to time, upon delivery to the Indenture Trustee of an Issuer Tax
Opinion and upon delivery by the Issuer to the Indenture Trustee of an Officer’s Certificate to the effect that the Issuer reasonably believes that such amendment will not have a material Adverse Effect, the Administrator may amend any
Transaction Document for purposes of effecting the Anticipated Amendments. Noteholders of the Series 2021-FT1 Term Notes will be deemed to consent to the Anticipated Amendments by their acquisition of the
Series 2121-FT1 Term Notes. 

  
 17 

 Section 11. Counterparts. 

This Indenture Supplement may be executed in counterparts, each of which when so executed shall be deemed to be an original and all of which
when taken together shall constitute one and the same instrument. The words “executed,” “signed,” “signature,” and words of like import as used above and elsewhere in this Indenture Supplement or in any other
certificate, agreement or document related to this transaction shall include, in addition to manually executed signatures, images of manually executed signatures transmitted by facsimile or other electronic format (including, without limitation,
“pdf,” “tif” or “jpg”) and other electronic signatures (including, without limitation, any electronic sound, symbol, or process, attached to or logically associated with a contract or other record and executed or
adopted by a person with the intent to sign the record). The use of electronic signatures and electronic records (including, without limitation, any contract or other record created, generated, sent, communicated, received, or stored by electronic
means) shall be of the same legal effect, validity, enforceability and admissibility as a manually executed signature or use of a paper-based record-keeping system to the fullest extent permitted by applicable law, including the federal Electronic
Signatures in Global and National Commerce Act, the New York State Electronic Signatures and Records Act and any other applicable law, including, without limitation, any state law based on the Uniform Electronic Transactions Act or the Uniform
Commercial Code. Each party to this Indenture Supplement hereby consents to the use of any secure third party electronic signature capture service providers (including, without limitation, DocuSign), as long as such service providers use system logs
and audit trails that establish a temporal and process link between the presentation of identity documents and the electronic signing, together with identifying information that can be used to verify the electronic signature and its attribution to
the signer’s identity and evidence of the signer’s agreement to conduct the transaction electronically and of the signer’s execution of each electronic signature. Delivery of an executed counterpart of a signature page to this
Indenture Supplement by facsimile or other electronic means shall be effective as delivery of a manually executed counterpart of this Indenture Supplement. 

Section 12. Entire Agreement. 

This Indenture Supplement, together with the Base Indenture incorporated herein by reference and the related Transaction Documents, constitutes
the entire agreement among the parties hereto with respect to the subject matter hereof, and fully supersedes any prior or contemporaneous agreements relating to such subject matter. 

Section 13. Limited Recourse. 

Notwithstanding any other terms of this Indenture Supplement, the Series 2021-FT1 Term Notes, any other Transaction Documents or otherwise, the
obligations of the Issuer under the Series 2021-FT1 Term Notes, this Indenture Supplement and each other Transaction Document to which it is a party are limited recourse obligations of the Issuer, payable solely from the Trust Estate, and following
realization of the Trust Estate and application of the proceeds thereof in accordance with the terms of this Indenture Supplement, none of the Noteholders of Series 2021-FT1 Term Notes, the Indenture Trustee or any of the other parties to the
Transaction Documents shall be entitled to take any further steps to recover any sums due but still unpaid hereunder or thereunder, all claims in respect of which shall be extinguished and shall not thereafter revive. No

  
 18 

 
recourse shall be had for the payment of any amount owing in respect of the Series 2021-FT1 Term Notes or this Indenture Supplement or for any action or inaction of the Issuer against any
officer, director, employee, shareholder, stockholder or incorporator of the Issuer or any of their successors or assigns for any amounts payable under the Series 2021-FT1 Term Notes or this Indenture Supplement. It is understood that the foregoing
provisions of this Section 13 shall not (a) prevent recourse to the Trust Estate for the sums due or to become due under any security, instrument or agreement which is part of the Trust Estate, including, without
limitation, the PC Guaranty and the PMT Guaranty or (b) save as specifically provided therein, constitute a waiver, release or discharge of any indebtedness or obligation evidenced by the Series 2021-FT1 Term Notes or secured by this Indenture
Supplement. It is further understood that the foregoing provisions of this Section 13 shall not limit the right of any Person to name the Issuer as a party defendant in any proceeding or in the exercise of any other remedy
under the Series 2021-FT1 Term Notes or this Indenture Supplement, so long as no judgment in the nature of a deficiency judgment or seeking personal liability shall be asked for or (if obtained) enforced against any such Person or entity. 

Section 14. Owner Trustee Limitation of Liability. 

It is expressly understood and agreed by the parties hereto that (a) this Indenture Supplement is executed and delivered by Wilmington
Savings Fund Society, FSB (“WSFS”), not individually or personally, but solely as trustee of the Issuer, in the exercise of the powers and authority conferred and vested in it, (b) each of the representations, warranties,
undertakings and agreements herein made on the part of the Issuer is made and intended not as personal representations, warranties, undertakings and agreements by WSFS, but is made and intended for the purpose of binding only the Issuer,
(c) nothing herein contained shall be construed as creating any liability on WSFS, individually or personally, to perform any covenant either expressed or implied contained herein, all such liability, if any, being expressly waived by the
parties hereto and by any Person claiming by, through or under the parties hereto, (d) WSFS has made no investigation as to the accuracy or completeness of any representations or warranties made by the Issuer in this Indenture Supplement and
(e) under no circumstances shall WSFS, be personally liable for the payment of any indebtedness or expenses of the Issuer or be liable for the breach or failure of any obligation, representation, warranty or covenant made or undertaken by the
Issuer under this Indenture Supplement or any other Transaction Documents. 
 Section 15. Credit Risk Retention. 

While it is not clear that Section 15G of the 1934 Act, added pursuant to Section 941(b) of the Dodd-Frank Wall Street Reform and
Consumer Protection Act (“Regulation RR”), applies to the issuance of the Series 2021-FT1 Term Notes and that PMC will be deemed a securitizer for the purposes of Regulation RR, PMC will maintain a subordinated seller’s
interest in the Issuer (in the form of the Owner Trust Certificate) that equals not less than 5% of the aggregate unpaid principal balance of any Outstanding Notes (other than Notes held to maturity by PMC or its wholly-owned affiliates), calculated
and held for the period of time required in accordance with Regulation RR. Neither PMC nor any wholly owned affiliates will engage in activities that constitute impermissible hedging, transfer or financing of the Owner Trust Certificate. 

  
 19 

 The seller’s interest expected to be retained by PMC in connection with Regulation RR
(to the extent applicable), will equal approximately 20.7% or $93,059,526 (in each case, as calculated in accordance with Regulation RR), as of the Issuance Date. As the Series 2017-VF1 Notes have not been
issued and are held by PMC and financed by Credit Suisse AG, Cayman Islands Branch and Citibank N.A., the Note Balance of the Series 2017-VF1 Notes is not included in the denominator of the calculation that
produced the percentage described above in accordance with Regulation RR. 
 [Signatures follow] 

 

  
 20 

 IN WITNESS WHEREOF, the undersigned have caused this Indenture Supplement to be duly
executed by their respective signatories thereunto all as of the day and year first above written. 
  

			
	PMT ISSUER TRUST - FMSR, as Issuer
	
	By: Wilmington Savings Fund Society, FSB, not in its individual capacity but solely as Owner Trustee
		
	By:	 	/s/ Mary Emily Pagano
		
		 	Name: Mary Emily Pagano
		
		 	Title: Assistant Vice President

 [PMT ISSUER TRUST – FMSR —Series 2021-FT1 Indenture
Supplement] 

 
			
	CITIBANK, N.A., as Indenture Trustee, Calculation Agent, Paying Agent and Securities Intermediary, and not in its individual capacity
		
	By:	 	/s/ Valerie Delgado
		
		 	Name: Valerie Delgado
		
		 	Title: Senior Trust Officer

 [PMT ISSUER TRUST – FMSR —Series 2021-FT1 Indenture
Supplement] 

 
			
	PENNYMAC CORP., as Administrator and Servicer 
		
	By:	 	/s/ Pamela Marsh
		
		 	Name: Pamela Marsh
		
		 	Title: Senior Managing Director and Treasurer

 [PMT ISSUER TRUST – FMSR —Series 2021-FT1 Indenture
Supplement] 

 
			
	CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC,
	as Administrative Agent
		
	By:	 	/s/ Kwaw de Graft-Johnson
		
		 	Name: Kwaw de Graft-Johnson
		
		 	Title: Vice President

 [PMT ISSUER TRUST – FMSR —Series 2021-FT1 Indenture
Supplement]

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