MORGAN STANLEY CAPITAL I INC. ABS-15G
Exhibit 99.1

Report of Independent Accountants on Applying Agreed-Upon Procedures
Morgan Stanley Mortgage Capital Holdings LLC (the “Sponsor”)
Morgan Stanley Capital I Inc. (the “Depositor”)
Morgan Stanley & Co. LLC (the “Initial Purchaser”)
1585 Broadway
New York, New York 10036
8 May 2026
Re: Morgan Stanley Residential Mortgage Loan Trust 2026-NQM5 (the “Issuing Entity”)
Mortgage Pass-Through Certificates, Series 2026-NQM5 (the “Certificates”)
Sample Mortgage Loan Agreed-Upon Procedures
We have performed the procedures enumerated in Attachment A, which were agreed to and acknowledged as appropriate by the Sponsor, Depositor and Initial Purchaser (collectively, the “Specified Parties”), for the intended purpose of assisting the Specified Parties in evaluating the accuracy of certain information with respect to a pool of mortgage loans (the “Mortgage Loans”) relating to the Issuing Entity’s securitization transaction. This report may not be suitable for any other purpose. The procedures performed may not address all of the items of interest to a user of the report and may not meet the needs of all users of the report and, as such, users are responsible for determining whether the procedures performed are appropriate for their purposes. The appropriateness of these procedures is solely the responsibility of the Specified Parties identified in this report. No other party acknowledged the appropriateness of the procedures. Consequently, we make no representation regarding the appropriateness of the procedures described in Attachment A, either for the purpose for which this report has been requested or for any other purpose.
The procedures performed and our associated findings are included in Attachment A.
For the purpose of the procedures described in this report, the Initial Purchaser, on behalf of the Depositor, provided us with:
| a. | Electronic data files (collectively, the “Provided Data Files”): |
| i. | Labeled “REVISED - MSRM 2026-NQM5+NQM6 Deal Split.xlsx” (the “Loan Listing Data File”), that the Initial Purchaser, on behalf of the Depositor, indicated contains a list of identification numbers (each, an “Investor Loan ID”) relating to certain mortgage loans (the “Preliminary Mortgage Loans”) which are expected to be representative of the Mortgage Loans and |
| ii. | Labeled “MSRM 2026-NQM5&6 EY Tape_2026-05-1.xlsx” and the corresponding record layout and decode information, as applicable (the “Preliminary Data File”), that the Initial Purchaser, on behalf of the Depositor, indicated contains information as of 1 May 2026 (the “Cut-off Date”) relating to the Preliminary Mortgage Loans, |
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| b. | Imaged copies of the following items (collectively, the “Source Documents”): |
| i. | Promissory note or loan agreement (collectively and as applicable, the “Note”), |
| ii. | Credit report (the “Credit Report”), |
| iii. | Loan application, occupancy affidavit, warranty deed, assignment of leases and rents and/or commercial loan application (collectively and as applicable, the “Application”), |
| iv. | Underwriting summary, summary of findings, loan product advisor feedback certificate and/or conditional underwriting approval (collectively and as applicable, the “Underwriting Summary”), |
| v. | Appraisal report (the “Appraisal”), |
| vi. | Fraud report (the “Fraud Report”), |
| vii. | Contract for the sale and purchase of real estate, assignment of purchase contract interest, sale escrow instructions and/or addendum to agreement of sale (collectively and as applicable, the “Sale Contract”) and |
| viii. | Settlement statement or closing disclosure (collectively and as applicable, the “Settlement Statement”) |
that the Initial Purchaser, on behalf of the Depositor, indicated relate to the Sample Mortgage Loans (as defined in Attachment A),
| c. | The list of relevant characteristics (the “Sample Characteristics”) on the Preliminary Data File, which is shown on Exhibit 1 to Attachment A, and |
| d. | Instructions, assumptions and methodologies, which are described in Attachment A. |
For the purpose of the procedures described in this report, certain information on the Preliminary Data File is the “Subject Matter” as of the date of this report.
The procedures included in Attachment A were limited to comparing or recalculating certain information that is further described in Attachment A. The Depositor is responsible for the Subject Matter, Provided Data Files, Source Documents, Sample Characteristics and the determination of the instructions, assumptions and methodologies that are described herein. We were not requested to perform, and we have not performed, any procedures other than those listed in Attachment A. We have not verified, and we make no representation as to, the accuracy, completeness or reasonableness of the Loan Listing Data File, Source Documents or any other information provided to us, or that we were instructed to obtain, as applicable, by the Initial Purchaser, on behalf of the Depositor, upon which we relied in forming our findings. Accordingly, we make no representation and express no opinion or conclusion as to (a) the existence of the Preliminary Mortgage Loans or Mortgage Loans, (b) questions of legal or tax interpretation or (c) the appropriateness, accuracy, completeness or reasonableness of any instructions, assumptions and methodologies provided to us by the Initial Purchaser, on behalf of the Depositor, that are described in this report. We undertake no responsibility to update this report for events and circumstances occurring after the date hereof.
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This agreed-upon procedures engagement was conducted in accordance with attestation standards established by the American Institute of Certified Public Accountants (the “AICPA”). An agreed-upon procedures engagement involves the practitioner performing specific procedures that the Specified Parties have agreed to and acknowledged to be appropriate for the purpose of the engagement and reporting on findings based on the procedures performed. We were not engaged to, and did not, conduct an examination to express an opinion or a review to express a conclusion in accordance with attestation standards established by the AICPA on any of the items referred to herein. Accordingly, we do not express such an opinion or conclusion. Had we performed additional procedures, other matters might have come to our attention that would have been reported to you.
The agreed-upon procedures described in this report were not performed for the purpose of:
| a. | Satisfying any criteria for due diligence published by a nationally recognized statistical rating organization (a “rating agency”) or |
| b. | Making any findings with respect to: |
| i. | Whether the origination of the Mortgage Loans conformed to, or deviated from, stated underwriting or credit extension guidelines, standards, criteria, or other requirements, |
| ii. | The value of the collateral securing the Mortgage Loans, |
| iii. | Whether the originator(s) of the Mortgage Loans complied with federal, state or local laws or regulations or |
| iv. | Any other factor or characteristic of the Mortgage Loans that would be material to the likelihood that the issuer of the Certificates will pay interest and principal in accordance with applicable terms and conditions. |
We are required to be independent of the Depositor and to meet our other ethical responsibilities, as applicable, for agreed-upon procedures engagements set forth in the Preface: Applicable to All Members and Part 1 – Members in Public Practice of the Code of Professional Conduct established by the AICPA. Independence requirements for agreed-upon procedures engagements are less restrictive than independence requirements for audit and other attestation services.
This report is intended solely for the information and use of the Specified Parties and is not intended to be, and should not be, used by anyone other than the Specified Parties. It is not intended to be, and should not be, used by any other person or entity, including investors and rating agencies, who are not identified in the report as Specified Parties but who may have access to this report as required by law or regulation.
/s/ Ernst & Young LLP
8 May 2026
![]() | Attachment A |
Procedures performed and our associated findings
| 1. | As instructed by the Initial Purchaser, on behalf of the Depositor, we randomly selected a sample of 420 Preliminary Mortgage Loans from the Loan Listing Data File (the “Base Sample Mortgage Loans”). For the purpose of this procedure, the Initial Purchaser, on behalf of the Depositor, did not inform us as to the basis for how they determined the number of Base Sample Mortgage Loans or the methodology they instructed us to use to select the Base Sample Mortgage Loans from the Loan Listing Data File. |
For the purpose of the procedures described in this report, the 420 Base Sample Mortgage Loans are referred to as Sample Mortgage Loan Numbers 1 through 420.
| 2. | For each mortgage loan on the Loan Listing Data File and Preliminary Data File, we compared the Investor Loan ID, as shown on the Loan Listing Data File, to the corresponding Loan Number, as shown on the Preliminary Data File, and noted that: |
| a. | All of the Preliminary Mortgage Loans were included on both the Preliminary Data File and Loan Listing Data File and |
| b. | No mortgage loans other than the Preliminary Mortgage Loans were included on the Loan Listing Data File or Preliminary Data File. |
| 3. | As instructed by the Initial Purchaser, on behalf of the Depositor, we identified 238 Base Sample Mortgage Loans on the Preliminary Data File (the “Sample Mortgage Loans”) that have a deal name of “NQM5,” as shown on the Loan Listing Data File. |
| 4. | For each Sample Mortgage Loan, we compared the Sample Characteristics listed on Exhibit 1 to Attachment A, as shown on the Preliminary Data File, to the corresponding information located in, or to the corresponding information we recalculated using information located in, the Source Documents or Preliminary Data File, as applicable, subject to the instructions, assumptions and methodologies provided by the Initial Purchaser, on behalf of the Depositor, described in the notes to Exhibit 1 to Attachment A. The Source Document(s) that we were instructed by the Initial Purchaser, on behalf of the Depositor, to use for each Sample Characteristic are shown on Exhibit 1 to Attachment A. Except for the information shown on Exhibit 2 to Attachment A, all such compared information was found to be in agreement. |
| Exhibit 1 to Attachment A | ||
| Page 1 of 7 |
Sample Characteristics and Source Documents
(a)Note
or (b)Note
and recalculation (a)Note
or (b)Note
and recalculation (a)Appraisal
or (b)Appraisal
and recalculation (a)Sale
Contract or Settlement Statement or (b)Settlement
Statement and recalculation
(a)Note
or (b)Note
and recalculation (a)Note
or (b)Note
and recalculation (a)Note
or (b)Note
and recalculation
Notes: For
the purpose of comparing the appraisal value Sample Characteristic for Sample Mortgage Loan Number 112, the Initial Purchaser, on behalf
of the Depositor, instructed us to use the Appraisal with the earliest appraisal date as the Source Document. For
the purpose of comparing the property type Sample Characteristic, the Initial Purchaser, on behalf of the Depositor, instructed us to
note agreement with a property type of: as
shown in the applicable Source Document. For
any remaining Sample Mortgage Loan (each, a “Refinanced Sample Mortgage Loan”), the Initial Purchaser, on behalf of
the Depositor, instructed us to calculate the “Amount to Borrower” as the difference between the: For
any Refinanced Sample Mortgage Loan (except for Sample Mortgage Loan Numbers 21, 37 and 98), the Initial Purchaser, on behalf of
the Depositor, instructed us to note agreement with a loan purpose of: For
Sample Mortgage Loan Numbers 21 and 37, the Initial Purchaser, on behalf of the Depositor, instructed us to note agreement with a loan
purpose of “Limited Cash-Out,” as shown on the Preliminary Data File. For
Sample Mortgage Loan Number 98, the Initial Purchaser, on behalf of the Depositor, instructed us to note agreement with a loan purpose
of “Refinance – Rate Term” if the Amount to Borrower is less than the lesser of (i) $5,000 and (ii) 5%
of the original principal balance, as shown in the Note. Sample
Characteristics for any Sample Mortgage Loan with a gross margin value of “0.000(%)” or <blank>, as shown on the
Preliminary Data File. both
as shown in the Note. both
as shown in the Note, and as
the “Value for LTV.” (b) Value
for LTV. We
performed no procedures to determine the accuracy, completeness or reasonableness of the instructions, assumptions and methodologies
provided by the Initial Purchaser, on behalf of the Depositor, that are described in the notes above. Sample
Characteristic Differences Sample
Mortgage Loan Number Sample
Characteristic Preliminary
Data File Value Source
Document Value 12 Initial
interest rate cap change down 1.000 3.250 Subsequent
interest rate change down 2.000 1.000 19 Loan
purpose Refinance
– Cash out Refinance
– Rate term 41 Initial
interest rate cap change down 1.000 3.250 Subsequent
interest rate change down 2.000 1.000 46 Loan
purpose Refinance
– Cash out Refinance
– Rate term 73 Initial
interest rate cap change down 1.000 0.000 Subsequent
interest rate change down 2.000 1.000 78 Property
zip code [Redacted] BM Property
type Other BM 111 Property
type 1
Family Attached Single
Family Detached (non-PUD) Initial
interest rate cap change down 1.000 0.000 Subsequent
interest rate change down 2.000 1.000 114 Property
zip code [Redacted] BM Property
type Other BM 115 Property
zip code [Redacted] BM Property
type Other BM 116 Property
zip code [Redacted] BM Property
type Other BM 138 Property
zip code [Redacted] BM Property
type Condo,
low rise (4 or fewer stories) BM Sample
Mortgage Loan Number Sample
Characteristic Preliminary
Data File Value Source
Document Value 139 Initial
interest rate cap change down 1.000 0.000 146 Property
type Single
Family Detached (non-PUD) 1
Family Attached 159 Property
zip code [Redacted] BM Property
type Single
Family Detached (non-PUD) BM 162 Property
zip code [Redacted] BM Property
type PUD BM 163 Property
zip code [Redacted] BM Property
type 2
Family BM 164 Initial
interest rate cap change down 1.000 0.000 172 Property
type Townhouse 1
Family Attached 189 Property
zip code [Redacted] BM Property
type Condo,
low rise (4 or fewer stories) BM Initial
interest rate cap change down 5.000 2.000 205 Property
type Single
Family Detached (non-PUD) 1
Family Attached 221 Initial
interest rate cap change down 1.000 0.000 Subsequent
interest rate change down 2.000 1.000 238 Property
type dPUD PUD
Sample
Characteristic
Preliminary
Data File Field NameSource
Document(s)
Loan
number
Loan
Number
Note
Original
principal balance
Original
Principal Balance
Note
Original
interest rate
Original
Interest Rate
Note
First
payment date
First
Payment Date
Note
Maturity
date
Maturity
Date
Note
Property
state
Property
State
Note
Property
zip code
Property
Zip Code
Note
Original
term
Original
Term
Original
interest only term
Original
Interest Only Term
Prepayment
charge term
Prepayment
Charge Term
Note
Occupancy
status
Occupancy
Status
Application
or Underwriting Summary
Appraisal
value
Appraisal
Value
Property
type
Property
Type
Appraisal
or Underwriting Summary
Sale
price
Sale
Price
Loan
purpose
Loan
Purpose
Application,
Fraud Report, Credit Report or recalculation
Junior
lien balance
Junior
Lien Balance
Underwriting
Summary, Application, Settlement Statement or Credit Report
Index
description
Index
Description
Note Exhibit 1 to Attachment A Page 2 of 7
Sample
Characteristic
Preliminary
Data File Field NameSource
Document(s)
Gross
margin
Gross
Margin
Note
Initial
fixed rate period
Initial
Fixed Rate Period
Subsequent
interest rate reset period
Subsequent
Interest Rate Reset Period
Note
Initial
interest rate cap change up
Initial
Interest Rate Cap Change Up
Initial
interest rate cap change down
Initial
Interest Rate Cap Change Down
Subsequent
interest rate change up
Subsequent
Interest Rate Change Up
Note
Subsequent
interest rate change down
Subsequent
Interest Rate Change Down
Note
Maximum
interest rate
Maximum
Interest Rate
Note
Minimum
interest rate
Minimum
Interest Rate
Note
or Settlement Statement
Original
loan-to-value ratio
Original
LTV
Recalculation
Combined
loan-to-value ratio
Original
Combined LTV
Recalculation Exhibit 1 to Attachment A Page 3 of 7
i. The
loan number Sample Characteristic is for identification purposes only.
ii. For
the purpose of comparing the property zip code and property type Sample Characteristics for
any Sample Mortgage Loan that has multiple properties, as stated in the Note, the Initial
Purchaser, on behalf of the Depositor, instructed us to note agreement with a value of “BM.”
iii. For
the purpose of comparing the original term Sample Characteristic for any Sample Mortgage
Loan that does not have the original term specifically stated in the Note, the Initial Purchaser,
on behalf of the Depositor, instructed us to use the sum of:
(a) The
difference in months between the maturity date and first payment date, both as shown in the
Note, and
(b) 1.
iv. For
the purpose of comparing the original interest only term Sample Characteristic for any Sample
Mortgage Loan that does not have the original interest only term specifically stated in the
Note, the Initial Purchaser, on behalf of the Depositor, instructed us to use the sum of:
(a) The
difference in months between the interest only end date and first payment date, both as shown
in the Note, and
(b) 1.
v. For
the purpose of comparing any Sample Characteristic listing the Application as a Source Document
for any Sample Mortgage Loan for which the Initial Purchaser, on behalf of the Depositor,
provided more than one Application, the Initial Purchaser, on behalf of the Depositor, instructed
us to use the most recent Application as the Source Document.
vi. For
the purpose of comparing the occupancy status Sample Characteristic,
the Initial Purchaser, on behalf of the Depositor, instructed us to note agreement if the
value on the Preliminary Data File agreed with the corresponding information in at least
one of the Source Documents listed for such Sample Characteristic. We performed no procedures
to reconcile any differences that may exist relating to the information in the Source Documents
relating to the occupancy status Sample Characteristic.
vii. For
the purpose of comparing any Sample Characteristic listing the Appraisal as a Source Document
for any Sample Mortgage Loan for which the Initial Purchaser, on behalf of the Depositor,
provided more than one Appraisal (except for Sample Mortgage Loan Number 112), the Initial
Purchaser, on behalf of the Depositor, instructed us to use the Appraisal with the lowest
appraisal value as the Source Document. Exhibit 1 to Attachment A Page 4 of 7
viii. For
the purpose of comparing the appraisal value Sample Characteristic for any Sample Mortgage
Loan for which the Initial Purchaser, on behalf of the Depositor, provided an Appraisal for
each mortgaged property relating to such Sample Mortgage Loan, the Initial Purchaser, on
behalf of the Depositor, instructed us to use the sum of the appraisal
values for the related mortgaged properties, as shown in the corresponding Appraisals.
ix. For
the purpose of comparing the property type Sample Characteristic, the Initial Purchaser,
on behalf of the Depositor, instructed us to note agreement if the value on the Preliminary
Data File agreed with the corresponding information in at least one of the Source Documents
listed for such Sample Characteristic. We performed no procedures to reconcile any differences
that may exist relating to the information in the Source Documents relating to the property
type Sample Characteristic.
(a) “Townhouse”
if the design (style) is “Twnhse,” “Townhouse,” “TownHm”
or “TownHome,”
(b) “Townhouse”
if the type is “S-Det./End Unit” and the Appraisal indicates that HOA dues are
required,
(c) “1 Family
Attached” if the type is “S-Det./End Unit” and the design (style) is “Row,”
“Duplex,” “Semi-Det,” “COL,” “Semi,” “MillHse,”
“Ranch,” “Row House,” “Twin,” “SD2;Colonial-ED”
or “Raised Beach” or
(d) “1 Family
Attached” if the design (style) is “Townhouse” and the Appraisal indicates
that no HOA dues are required,
x. For
the purpose of comparing any Sample Characteristic listing the Settlement Statement as a
Source Document for any Sample Mortgage Loan for which the Initial Purchaser, on behalf of
the Depositor, provided more than one Settlement Statement, the Initial Purchaser, on behalf
of the Depositor, instructed us to use the most recent Settlement Statement as the Source
Document.
xi. For
the purpose of comparing the sale price Sample Characteristic, the Initial Purchaser, on
behalf of the Depositor, instructed us to note agreement if the value on the Preliminary
Data File agreed with the corresponding information in at least one of the Source Documents
listed for such Sample Characteristic. We performed no procedures to reconcile any differences
that may exist relating to the information in the Source Documents relating to the sale price
Sample Characteristic. Exhibit 1 to Attachment A Page 5 of 7
xii. For
the purpose of comparing the loan purpose Sample Characteristic for any Sample Mortgage Loan
with a loan purpose of “First Time Home Purchase” or “Other-than-first-time
Home Purchase,” as shown on the Preliminary Data File (each, a “Purchase
Sample Mortgage Loan”), the Initial Purchaser, on behalf of the Depositor, instructed
us to note agreement if the value on the Preliminary Data File agreed with the corresponding
information in at least one of the Source Documents listed for such Sample Characteristic.
We performed no procedures to reconcile any differences that may exist relating to the information
in the Source Documents relating to the loan purpose Sample Characteristic for any Purchase
Sample Mortgage Loan.
(a) Original
principal balance, as shown in the Note, and
(b) Sum
of the:
(1) Unpaid
principal balance of any previous mortgage loan that is being refinanced, as shown in the
Settlement Statement, and
(2) Total
closing costs relating to the Refinanced Sample Mortgage Loan, as shown in the Settlement
Statement.
(a) “Refinance
– Cash Out” if the Amount to Borrower is greater than the lesser of (i) $2,000
and (ii) 1% of the original principal balance, as shown in the Note, or
(b) “Refinance
– Rate Term” for each remaining Refinanced Sample Mortgage Loan.
xiii. For
the purpose of comparing the junior lien balance Sample
Characteristic, the Initial Purchaser, on behalf of the Depositor, instructed us to note
agreement if the value on the Preliminary Data File agreed with the corresponding information
in at least one of the Source Documents listed for such Sample Characteristic. We performed
no procedures to reconcile any differences that may exist relating to the information in
the Source Documents relating to the junior lien balance
Sample Characteristic. Exhibit 1 to Attachment A Page 6 of 7
xiv. The
Initial Purchaser, on behalf of the Depositor, instructed us not to perform any procedures
with respect to the:
(a) Index
description,
(b) Gross
margin,
(c) Initial
fixed rate period,
(d) Subsequent
interest rate reset period,
(e) Initial
interest rate cap change up,
(f) Initial
interest rate cap change down,
(g) Subsequent
interest rate change up,
(h) Subsequent
interest rate change down,
(i) Maximum
interest rate and
(j) Minimum
interest rate
xv. For
the purpose of comparing the initial fixed rate period Sample Characteristic for any Sample
Mortgage Loan with a gross margin value that is not equal to <blank> and is greater
than “0.000(%),” as shown in the Note (each, an “ARM Sample Mortgage Loan”),
that does not have the initial fixed rate period specifically stated in the Note, the Initial
Purchaser, on behalf of the Depositor, instructed us to use the sum of:
(a) The
difference in months between the first rate change date and first payment date, both as shown
in the Note, and
(b) 1.
xvi. For
the purpose of comparing the initial interest rate cap change up Sample Characteristic for
any ARM Sample Mortgage Loan that does not have the initial interest rate cap change up specifically
stated in the Note, the Initial Purchaser, on behalf of the Depositor, instructed us to use
the difference between the:
(a) Initial
rate adjustment maximum interest rate and
(b) Original
interest rate,
xvii. For
the purpose of comparing the initial interest rate cap change down Sample Characteristic
for any ARM Sample Mortgage Loan that does not have the initial interest rate cap change
down specifically stated in the Note, the Initial Purchaser, on behalf of the Depositor,
instructed us to use the maximum of:
(a) The
difference between the:
(1) Original
interest rate and
(2) Initial
rate adjustment minimum interest rate,
(b) 0.000(%). Exhibit 1 to Attachment A Page 7 of 7
xviii. For
the purpose of comparing the minimum interest rate Sample Characteristic for any ARM Sample
Mortgage Loan that does not have the minimum interest rate specifically stated in the Note
or Settlement Statement, the Initial Purchaser, on behalf of the Depositor, instructed us
to use the gross margin, as shown in the Note, as the minimum interest rate.
xix. The
Initial Purchaser, on behalf of the Depositor, instructed us to use:
(a) For
any Purchase Sample Mortgage Loan, the lesser of the (1) appraisal value, as shown in the
Appraisal, and (2) sale price, as shown in the Sale Contract or Settlement Statement,
(b) For
any Refinanced Sample Mortgage Loan (except for Sample Mortgage Loan Numbers 170 and 189),
the appraisal value, as shown in the Appraisal, or
(c) For
Sample Mortgage Loan Numbers 170 and 189, the value used for LTV, as shown on the Preliminary
Data File,
xx. For
the purpose of comparing the original loan-to-value ratio Sample Characteristic, the Initial
Purchaser, on behalf of the Depositor, instructed us to use the quotient (rounded to the
fourth decimal place (X.XXXX)) of the:
(a) Original
principal balance, as shown in the Note, divided by
xxi. For
the purpose of comparing the combined loan-to-value ratio Sample Characteristic, the Initial
Purchaser, on behalf of the Depositor, instructed us to use the quotient (rounded to the
fourth decimal place (X.XXXX)) of the:
(a) Sum
of the original principal balance, as shown in the Note, and junior lien balance, as shown
in the applicable Source Document(s), divided by
(b) Value
for LTV.
xxii. For
the purpose of comparing the original loan-to-value ratio and combined loan-to-value ratio
Sample Characteristics, the Initial Purchaser, on behalf of the Depositor, instructed us
to ignore differences of +/- 0.0001 or less. Exhibit 2 to Attachment A Page 1 of 2
Exhibit 2 to Attachment A Page 2 of 2