Exhibit
10.4


 


EXECUTION VERSION 


 


[Information
indicated with brackets has been excluded from this exhibit because it is not material and would be competitively harmful if publicly
disclosed]


 








 


PNMAC GMSR ISSUER TRUST,

as Issuer


 


and


 


CITIBANK, N.A.,

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


 


and


 


PENNYMAC LOAN SERVICES, LLC,

as Administrator and as Servicer


 


and


 


CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC,





as Administrative Agent and Noteholder for the
benefit of the Series 2020-SPIADVF1 Repo Buyers


 


and consented to by


 


CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH,





as a Series 2020-SPIADVF1 Repo Buyer


 


and


 


CITIBANK, N.A.,





as a Series 2020-SPIADVF1 Repo Buyer


 





 






 


AMENDMENT NO. 3

Dated as of July 30, 2021


 


to the


 


AMENDED AND RESTATED SERIES 2020-SPIADVF1 INDENTURE
SUPPLEMENT

Dated as of April 1, 2020


 





 






 


PNMAC GMSR ISSUER TRUST


 


MSR COLLATERALIZED NOTES,

SERIES 2020-SPIADVF1


 














 






     

     


    

 


AMENDMENT NO. 3 TO AMENDED AND RESTATED SERIES
2020-SPIADVF1 INDENTURE SUPPLEMENT


 


This Amendment No. 3
to the Amended and Restated Series 2020-SPIADVF1 Indenture Supplement (this “Amendment”) is dated as of July 30,
2021, by and among PNMAC GMSR ISSUER TRUST, as issuer (the “Issuer”), CITIBANK, N.A. (“Citibank”),
as indenture trustee (the “Indenture Trustee”), PENNYMAC LOAN SERVICES, LLC, as administrator (in such capacity, the
 “Administrator”) and as servicer (in such capacity, the “Servicer”), and CREDIT SUISSE FIRST BOSTON
MORTGAGE CAPITAL LLC, as administrative agent (the “Administrative Agent”) and noteholder (the “Noteholder”)
for the benefit of the Series 2020-SPIADVF1 Repo Buyers (as defined below), and is consented to by CREDIT SUISSE AG, CAYMAN ISLANDS
BRANCH (“CSCIB”) and CITIBANK, N.A. (“Citi”) (each a “Series 2020-SPIADVF1 Repo Buyer”
and together, the “Series 2020-SPIADVF1 Repo Buyers”), the buyers of 100% of the Series 2020-SPIADVF1 Note
under the Series 2020-SPIADVF1 Repurchase Agreement.


 


RECITALS


 


WHEREAS,
the Issuer, the Indenture Trustee, the Administrator, the Servicer and the Administrative Agent are parties to that certain Third Amended
and Restated Indenture, dated as of April 1, 2020 (as may be amended, restated, supplemented or otherwise modified from time to time,
the “Base Indenture”), the provisions of which are incorporated, as modified by that certain Amended and Restated
Series 2020-SPIADVF1 Indenture Supplement, dated as of April 1, 2020 (as amended by Amendment No. 1, dated as of August 25,
2020, and Amendment No. 2, dated as of April 1, 2021, and as may be further amended, restated, supplement or otherwise modified
from time to time, the “Series 2020-SPIADVF1 Indenture Supplement”, and together with the Base Indenture, the
 “Indenture”), among the Issuer, Citibank, the Servicer, the Administrator and the Administrative Agent. Capitalized
terms used but not otherwise defined herein shall have the meanings given to them in the Indenture;


 


WHEREAS, the Issuer, the Indenture
Trustee, the Administrator, the Servicer and the Administrative Agent (in its capacity as Administrative Agent and Noteholder) have agreed,
subject to the terms and conditions of this Amendment, that the Series 2020-SPIADVF1 Indenture Supplement be amended to reflect certain
agreed upon revisions to the terms of the Series 2020-SPIADVF1 Indenture Supplement;


 


WHEREAS, pursuant to Section 12.2
of the Base Indenture, the Issuer, the Indenture Trustee, the Administrator, the Servicer and the Administrative Agent, 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,
by Act of said Noteholders delivered to 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), for the purpose of adding any
provisions to, or changing in any manner or eliminating any of the provisions of, any Indenture Supplement;


 






    	 	 1	 



     


    

 


WHEREAS, pursuant to Section 12.3
of the Base Indenture, in executing or accepting the additional trusts created by any amendment or Indenture Supplement of the Base Indenture
permitted by Article XII or the modifications thereby of the trusts created by the Base Indenture, the Indenture Trustee will
be entitled to receive, and (subject to Section 11.1 of the Base Indenture) 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 the Base Indenture and that
all conditions precedent thereto have been satisfied (the “Authorization Opinion”); provided, that no such Authorization
Opinion 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;


 





WHEREAS, pursuant to Section 1.3
of the Base Indenture, the Issuer shall deliver an Officer’s Certificate stating that all conditions precedent, if any, provided
for in the Base Indenture relating to a proposed action have been complied with and that the Issuer reasonably believes that this Amendment
will not have a material Adverse Effect, and shall also furnish to the Indenture Trustee an opinion of counsel stating that in the opinion
of such counsel all conditions precedent to a proposed action, if any, have been complied with (unless 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 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);


 


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 shall be 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;


 


WHEREAS, pursuant to Section 4.1(a)(iii) of
the Trust Agreement, the consent of each of the Owners (as defined in the Trust Agreement) (unless an Event of Default has occurred and
is continuing), the Administrative Agent and the Series Required Noteholders of all Variable Funding Notes is required for the amendment
or other change to any Transaction Document in circumstances where the consent of any Noteholder or the Administrative Agent is required
(other than an amendment or supplement to the Base Indenture pursuant to Section 12.1 thereof);


 


WHEREAS,
the Series 2020-SPIADVF1 Note (the “Series 2020-SPIADVF1 Note”), was issued to PennyMac Loan Services, LLC
(“PLS”) pursuant to the terms of the Series 2020-SPIADVF1 Indenture Supplement, and was purchased by CSCIB
and Citi under the Amended and Restated Master Repurchase Agreement, dated as of July 30, 2021, by and among the Administrative Agent,
CSCIB, as Series 2020-SPIADVF1 Repo Buyer, Citi, as Series 2020-SPIADVF1 Repo Buyer and PLS, as seller (as amended, restated,
supplemented or otherwise modified from time to time, the “Series 2020-SPIADVF1 Repurchase Agreement”), pursuant
to which PLS sold all of rights, title and interest in the Series 2020-SPIADVF1 Note to CSCIB and Citi as Series 2020-SPIADVF1
Repo Buyers, and transferred the Series 2020-SPIADVF1 Note to the Administrative Agent as “Noteholder” for the benefit
of the Series 2020-SPIADVF1 Repo Buyers;


 


WHEREAS,
pursuant to the Series 2020-SPIADVF1 Indenture Supplement, with respect to the Series 2020-SPIADVF1 Note, any Action provided
by the Base Indenture or the Series 2020-SPIADVF1 Indenture Supplement to be given or taken by a Noteholder shall be taken by the
Series 2020-SPIADVF1 Repo Buyers, as the buyers of the Series 2020-SPIADVF1 Note under the Series 2020-SPIADVF1 Repurchase
Agreement;


 






    	 	 2	 



     


    

 





WHEREAS,
pursuant to Section 10 of the Series 2020-SPIADVF1 Indenture Supplement, the parties hereto may enter into an amendment
to supplement, amend or revise any term or provision of the Series 2020-SPIADVF1 Indenture Supplement pursuant to the terms and provisions
of Section 12.2 of the Base Indenture with the consent of the Noteholders of 100% of the Series 2020-SPIADVF1 Note; and


 


WHEREAS, as of the date hereof,
the Series 2020-SPIADVF1 Note is not rated by any Note Rating Agency.


 


NOW, THEREFORE, the Issuer, Indenture
Trustee, the Administrator, the Servicer and the Administrative Agent hereby agree, in consideration of the amendments, agreements and
other provisions herein contained and of certain other good and valuable consideration the receipt and sufficiency of which is hereby
acknowledged by the parties hereto, that the Series 2020-SPIADVF1 Indenture Supplement is hereby amended as follows:


 


Section 1.     Amendments
to the Series 2020-SPIADVF1 Indenture Supplement.


 


(a)            The
Series 2020-SPIADVF1 Indenture Supplement is hereby amended by deleting the definitions of “Initial Term Note Offering,”
 “LIBOR Index Rate,” “Margin,” “Note Interest Rate,” “Series 2020-SPIADVF1
Repurchase Agreement” and “Series Required Noteholders” from Section 2 thereof in their entirety
and replacing them with the following:


 


“Additional Term Note
Offering” means the issuance of at least $200,000,000 in Term Notes to third party investors in accordance with the Base Indenture
on or after July 30, 2021.


 


“LIBOR Index Rate”
means for a one-month period, the 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.


 


“Margin”
means, (i) with respect to the Series 2020-SPIADVF1 Note, (A) prior to the occurrence of an Event of Default (as defined
under the Series 2020-SPIADVF1 Repurchase Agreement), [****]% per annum, or (B) upon the occurrence of an Additional Term Note
Offering, the margin over the related swap rate in effect for the Term Notes subject to such Additional Term Note Offering plus [****]%,
and (ii) with respect to the Series 2020-SPIADVF1 Note following the occurrence of an Event of Default (as defined under the
Series 2020-SPIADVF1 Repurchase Agreement), the amount calculated pursuant to clause (i) plus an additional [****]% per annum.


 


“Note Interest Rate”
means, with respect to any Interest Accrual Period, the sum of (a) the greater of (i) Benchmark and (ii) [****]% plus (b) the
Margin.


 


“Series 2020-SPIADVF1
Repurchase Agreement” means the Amended and Restated Master Repurchase Agreement, dated as of July 30, 2021, by
and among the Administrative Agent, CSCIB, as a Series 2020-SPIADVF1 Repo Buyer, Citi, as a Series 2020-SPIADVF1 Repo Buyer
and PLS, as seller.


 






    	 	 3	 



     


    

 





“Series Required
Noteholders” means, for so long as the Series 2020-SPIADVF1 Notes are Outstanding, 100% of the Noteholders of the Series 2020-SPIADVF1
Notes. With respect to the Series 2020-SPIADVF1 Notes, any Action provided by the Base Indenture or this Indenture Supplement to
be given or taken by a Noteholder shall be taken by Series 2020-SPIADVF1 Repo Buyers, as buyers of the Series 2020-SPIADVF1
Notes under the Series 2020-SPIADVF1 Repurchase Agreement.


 


(b)            The
Series 2020-SPIADVF1 Indenture Supplement is hereby amended by adding the below listed definitions to Section 2 thereof in proper
alphabetical order as follows:


 


“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 or an Early Opt-in Election, as applicable, 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 Rate.


 


“Benchmark Determination Date”
means, for each Payment Date and the related Interest Accrual Period 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.


 






    	 	 4	 



     


    

 


“Benchmark Reference Agreement”
means the first applicable alternative set forth in the order below that can be determined by the Designated Transaction Representative:


 





(1)            any
repurchase or financing facility entered into with respect to a Series of Variable Funding Notes that are Outstanding;


 


(2)            any
repurchase or financing facility entered into by the Servicer with respect to MSRs or mortgage loans with CSCIB, CSFB or Citibank as repo
buyers or lenders, as applicable;


 


(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.


 


“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.


 






    	 	 5	 



     


    

 


“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.


 


“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 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 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;


 






    	 	 6	 



     


    

 





(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; or


 


(3)            in
the case of an Early Opt-in Election, the sixth (6th) Business Day after the Early Opt-in Election by Administrative Agent and Seller.


 


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.


 


“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.


 






    	 	 7	 



     


    

 





“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 Accrual 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.


 


“Corresponding Tenor”
means one month.


 


“Designated Transaction Representative”
means the Administrator.


 


“Early Opt-in Effective Date”
means, with respect to any Early Opt-in Election, the sixth (6th) Business Day after the date notice of such Early Opt-in Election is
provided to the Buyers, so long as the Administrative Agent has not received, by 5:00 p.m. (New York City time) on the fifth (5th)
Business Day after the date notice of such Early Opt-in Election is provided to the Buyers, written notice of objection to such Early
Opt-in Election from Buyers comprising the Required Buyers.


 


“Early Opt-in Election” means
the occurrence of the following:


 


		(1)	a determination by Administrative Agent that at least five currently outstanding U.S. dollar-denominated
syndicated credit facilities at such time contain (as a result of amendment or as originally executed) a SOFR-based rate (including SOFR,
a term SOFR or any other rate based upon SOFR) as a benchmark rate (and such credit facilities are identified in the notice to Seller
described in clause (2) below and are publicly available for review), and



 


		(2)	the election by Administrative Agent to trigger a fallback from LIBOR Index Rate and the provision by
Administrative Agent of written notice of such election to the Buyers.



 


“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.


 






    	 	 8	 



     


    

 


“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.


 


“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.


 


“Series 2020-SPIADVF1
Repo Buyer” means each of Credit Suisse AG, Cayman Islands Branch and Citibank, N.A., as buyers under the Series 2020-SPIADVF1
Repurchase Agreement, and each of their permitted successors and assigns.


 


“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.


 


“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.


 


(c)            The
Series 2020-SPIADVF1 Indenture Supplement is hereby amended by deleting the definitions of “LIBOR Determination Date”
and “LIBOR Rate” from Section 2 thereof in their entirety.


 






    	 	 9	 



     


    

 


(d)            The
Series 2020-SPIADVF1 Indenture Supplement is hereby amended by deleting Section 5(d) thereof and replacing it with the
following:


 


(d)            The
parties hereto acknowledge that the Series 2020-SPIADVF1 Notes will be financed by the Series 2020-SPIADVF1 Repo Buyers under
the Series 2020-SPIADVF1 Repurchase Agreement, pursuant to which PLS will sell all its rights, title and interest in the Series 2020-SPIADVF1
Notes to the Series 2020-SPIADVF1 Repo Buyers. The parties hereto acknowledge that with respect to the Series 2020-SPIADVF1
Notes, any Action provided by the Base Indenture or this Indenture Supplement to be given or taken by a Noteholder shall be taken by the
Required Buyers (as defined in the Series 2020-SPIADVF1 Repurchase Agreement). Subject to the foregoing, the Administrative Agent
and the Issuer further confirm that the Series 2020-SPIADVF1 Notes issued on the Issuance Date pursuant to this Indenture Supplement
shall be issued in the name of “Credit Suisse First Boston Mortgage Capital LLC, solely in its capacity as Administrative Agent
on behalf of Credit Suisse AG, Cayman Islands Branch, as a Series 2020-SPIADVF1 Repo Buyer, and Citibank, N.A., as a Series 2020-SPIADVF1
Repo Buyer.” The Issuer and the Administrative Agent hereby direct the Indenture Trustee to issue the Series 2020-SPIADVF1
Notes in the name of “Credit Suisse First Boston Mortgage Capital LLC, solely in its capacity as Administrative Agent on behalf
of Credit Suisse AG, Cayman Islands Branch, as a Series 2020-SPIADVF1 Repo Buyer, and Citibank, N.A., as a Series 2020-SPIADVF1
Repo Buyer.”


 





(e)            The
Series 2020-SPIADVF1 Indenture Supplement is hereby amended by deleting Section 7 thereof in its entirety and replacing it with
the following:


 


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 2020-SPIADVF1 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 2020-SPIADVF1 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 or an Early Opt-in Election, as applicable, 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.


 






    	 	 10	 



     


    

 





(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 Replacement
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.


 






    	 	 11	 



     


    

 





(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 2020-SPIADVF1 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.


 


(i)             The
Issuer, Indenture Trustee, PLS, Administrative Agent and each Series Required Noteholder hereby agree to negotiate in good faith
with the other parties hereto in connection with mutually acceptable amendments to this Indenture Supplement to revise this Section 7,
the definitions of “Benchmark”, “Benchmark Replacement” and related terms hereto.


 


(f)            The
Series 2020-SPIADVF1 Indenture Supplement is hereby amended by deleting Schedule 1 in its entirety and replacing it with the Exhibit A
attached hereto.


 


Section 2.     Replacement
of Series 2020-SPIADVF1 Note.


 


(a)            The
parties hereto acknowledge and agree that the Series 2020-SPIADVF1 Note No. 1, dated as of April 1, 2020 with a Maximum
VFN Principal Balance of $1,000,000,000 (the “Outstanding Note”) is (1) hereby deemed cancelled and for all purposes
no longer outstanding under the Indenture and applicable law and (2) replaced by Series 2020-SPIADVF1 No. 2, to be dated
as of the date hereof with a Maximum VFN Principal Balance of $1,000,000,000 (the “Replacement Note”).


 






    	 	 12	 



     


    

 





(b)            The
Noteholder shall promptly deliver the Outstanding Note to the Indenture Trustee for cancellation and hereby consents to the issuance of
the Replacement Note.


 


Section 3.     No
Note Rating Agency. As of the date hereof and prior to the execution of this Amendment, the Series 2020-SPIADVF1
Note is not rated by any Note Rating Agency.


 


Section 4.     Waiver
of Issuer Tax Opinion and Authorization Opinion. Pursuant to Section 12.2 of the Base Indenture
and Section 10 of the Series 2020-SPIADVF1 Indenture Supplement, the Noteholder hereby waives and instructs the Administrative
Agent and the Indenture Trustee to waive the provisions of Section 12.2 of the Base Indenture and Section 10 of the Series 2020-SPIADVF1
Indenture Supplement which require delivery of an Issuer Tax Opinion with respect to this Amendment. Pursuant to Section 12.3 of
the Base Indenture, the Noteholder hereby waives and instructs the Administrative Agent and the Indenture Trustee to waive the provisions
of Section 12.3 of the Base Indenture which requires delivery of an Authorization Opinion with respect to this Amendment.


 


Section 5.     Conditions
to Effectiveness of this Amendment. This Amendment shall become effective upon the execution
and delivery of this Amendment by all parties hereto (the “Amendment Effective Date”).


 


Section 6.     Consent
and Acknowledgment. By execution of this Amendment, each of CSCIB and Citi, in its capacity as
Series 2020-SPIADVF1 Repo Buyer, hereby consents to this Amendment. The Series 2020-SPIADVF1 Repo Buyers certify that together
they own 100% of the Series 2020-SPIADVF1 Note. In addition, each Series 2020-SPIADVF1 Repo Buyer certifies as to itself that
(i) it is authorized to execute and deliver this consent and such power has not been granted or assigned to any other person, (ii) the
Person executing this Indenture Supplement on behalf of such Series 2020-SPIADVF1 Repo Buyer is duly authorized to do so, (iii) the
Indenture Trustee may conclusively rely upon such consent and certifications, (iv) the execution of this Amendment by the Administrative
Agent as Noteholder on behalf of the Series 2020-SPIADVF1 Repo Buyers should be considered an “Act” by the Noteholder
pursuant to Section 1.5 of the Base Indenture and (v) it acknowledges and agrees that the amendments effected by this Amendment
shall become effective on the Amendment Effective Date. The Series 2020-SPIADVF1 Repo Buyers hereby instruct the Indenture Trustee
to execute this Amendment, thereby waiving the requirement for delivery of the Authorization Opinion and the Officer’s Certificate
pursuant to Section 1.3 and 12.3 of the Base Indenture.


 


The Indenture Trustee is hereby authorized and
directed to execute that certain Fourth Amended and Restated Acknowledgment Agreement, dated as of July 30, 2021, by and among the
Indenture Trustee, PLS, and Ginnie Mae.


 


Section 7.     Representations
and Warranties.  The Issuer hereby represents and warrants to the Indenture Trustee,
the Administrative Agent and the Series 2020-SPIADVF1 Repo Buyers that as of the date hereof it is in compliance with all the terms
and provisions set forth in the Indenture on its part to be observed or performed remains bound by the terms thereof, and that no Event
of Default has occurred or is continuing, and hereby confirms and reaffirms the representations and warranties contained in Section 9.1
of the Base Indenture.


 






    	 	 13	 



     


    

 





Section 8.     Limited
Effect. Except as expressly amended and modified by this Amendment, the Indenture shall continue
to be, and shall remain, in full force and effect in accordance with its terms and the execution of this Amendment.


 


Section 9.     No
Recourse. It is expressly understood and agreed by the parties hereto that (a) this Amendment
is executed and delivered by Wilmington Savings Fund Society, FSB (“WSFS”), not individually or personally but solely
as Owner Trustee of the Issuer under the Trust Agreement, 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.


 


Section 10.     Successors
and Assigns. This Amendment shall be binding upon the parties hereto and their respective successors
and assigns.


 


Section 11.     GOVERNING
LAW. THIS AMENDMENT AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR RELATED TO OR IN CONNECTION
WITH THIS AMENDMENT, 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 12.     Counterparts.
This Amendment may be executed in any number of counterparts, each of which so executed shall
be deemed to be an original, but all of such counterparts shall together constitute but one and the same instrument. The parties agree
that this Amendment may be accepted, executed or agreed to through the use of an electronic signature in accordance with the Electronic
Signatures in Global and National Commerce Act, 15 U.S.C. § 7001 et seq, Official Text of the Uniform Electronic Transactions Act
as approved by the National Conference of Commissioners on Uniform State Laws at its Annual Conference on July 29, 1999 and any applicable
state law. Any document accepted, executed or agreed to in conformity with such laws will be binding on all parties hereto to the same
extent as if it were physically executed and each party hereby consents to the use of any secure third party electronic signature capture
service with appropriate document access tracking, electronic signature tracking and document retention, including DocuSign.


 






    	 	 14	 



     


    

 





Section 13.     Entire
Agreement. The Indenture, as amended by this Amendment, 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 14.     Recitals.
The recitals and statements contained in this Amendment shall be taken as the statements of the
Issuer, and the Indenture Trustee does not assume any responsibility for their correctness. The Indenture Trustee does not make any representation
as to the validity or sufficiency of this Amendment (except as may be made with respect to the validity of its own obligations hereunder.)
In entering into this Amendment, the Indenture Trustee shall be entitled to the benefit of every provision of the Indenture relating to
the conduct of, or affecting the liability of or affording protection to it.


 


[Signature Pages Follow]








 






    	 	 15	 



     


    

 





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


 





	 	PNMAC GMSR ISSUER TRUST, as Issuer
	 	 
	 	 
	 	By: Wilmington Savings Fund Society, FSB, not in its
    individual capacity but solely as Owner Trustee
	 	 
	 	 
	 	By:	/s/ Shaheen Mohajer
	 	Name: 	Shaheen Mohajer
	 	Title:	Vice President






 


[PNMAC GMSR Issuer Trust Amendment No. 3 to Series 2020-SPIADVF1 Indenture Supplement]


 






     

     


    

 





	 	PENNYMAC LOAN SERVICES, LLC, as Servicer and as Administrator
	 	 
	 	 
	 	By:	/s/ Pamela Marsh
	 	Name:	Pamela Marsh
	 	Title:	Senior Managing Director and Treasurer



 


[PNMAC GMSR Issuer Trust Amendment No. 3 to Series 2020-SPIADVF1 Indenture Supplement]











 






     

     


    

 


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






 





[PNMAC GMSR Issuer Trust Amendment No. 3 to Series 2020-SPIADVF1 Indenture Supplement]


 






     

     


    

 


	 	CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC, as Administrative Agent
	 	 
	 	 
	 	By:	/s/ Dominic Obaditch
	 	Name:	Dominic Obaditch
	 	Title:	Vice President












 


[PNMAC GMSR Issuer Trust Amendment No. 3 to Series 2020-SPIADVF1 Indenture Supplement]


 






     

     


    

 


	 	CREDIT SUISSE FIRST BOSTON MORTGAGE CAPITAL LLC, as 100% Noteholder of Series 2016-MSRVF1 Note, solely in its capacity as Administrative Agent on behalf of Credit Suisse AG, Cayman Islands Branch
	 	 
	 	 
	 	By:	/s/ Dominic Obaditch
	 	Name:	Dominic Obaditch
	 	Title:	Vice President



 


[PNMAC GMSR Issuer Trust Amendment No. 3 to Series 2020-SPIADVF1 Indenture Supplement]








 






     

     


    

 


	 	CONSENTED TO BY:
	 	 
	 	CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, as a Series 2020-SPIADVF1 Repo Buyer
	 	 
	 	 
	 	By:	/s/ Dominic Obaditch
	 	Name:	Dominic Obaditch
	 	Title:	Authorized Signatory
	 	 
	 	 
	 	By:	/s/ Margaret D. Dellafera
	 	Name:	Margaret D. Dellafera
	 	Title:	Authorized Signatory



 


[PNMAC GMSR Issuer Trust Amendment No. 3 to Series 2020-SPIADVF1 Indenture Supplement]





 









     

     


    

 











	 	CONSENTED TO BY:
	 	 
	 	CITIBANK, N.A., as a Series 2020-SPIADVF1 Repo Buyer
	 	 
	 	 
	 	By:	/s/ Arunthathi Theivakumaran
	 	Name:	Arunthathi Theivakumaran
	 	Title:	Vice President



 


[PNMAC GMSR Issuer Trust Amendment No. 3 to Series 2020-SPIADVF1 Indenture Supplement]








 






     

     


    

 


Exhibit A


 


SCHEDULE 1


 


Advance Rates


 


	Type of Advance	Advance Rate Percentage
	MBS Advances
	FHA	[*****]%
	VA	[*****]%
	Other	[*****]%
	Escrow Advances
	FHA	[*****]%
	VA	[*****]%
	Other	[*****]%
	Corporate Advances
	FHA	[*****]%
	VA	[*****]%
	Other	[*****]%


 


Advance Rates are, in each case, subject to amendment
by mutual agreement of the Series Required Noteholders, the Administrative Agent and the Administrator; provided that, upon the occurrence
of a SPIA VFN Advance Rate Reduction Event the applicable Advance Rate Percentage or Percentages set forth in the table above will decrease
by the amount set forth in the definition of SPIA VFN Advance Rate Reduction Event, in each case, until the Advance Rate Reduction Event
is cured in all respects subject to the satisfaction of the Administrative Agent, at which point the weighted average advance rate will
revert to the weighted average advance rate calculated pursuant to this definition.


 


Notwithstanding the foregoing, on and after the
commencement of the Full Amortization Period, the Advance Rate Percentage applicable to the SPIA VFNs shall be equal to the weighted average
Advance Rate of all Outstanding MSR VFNs and all Outstanding Term Notes.


 


Exhibit A