# EDGAR Filing Document

**Accession Number:** 0000315030
**File Stem:** 0001539497-26-001031
**Filing Date:** 2026-3
**Character Count:** 56054
**Document Hash:** d274588459887655c913639f22595961
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001539497-26-001031.hdr.sgml**: 20260326

**ACCESSION NUMBER**: 0001539497-26-001031

**CONFORMED SUBMISSION TYPE**: ABS-15G

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20260326

**ITEM INFORMATION**: Findings and Conclusions of the Third Party Due Diligence Provider Obtained by the Underwriter

**FILED AS OF DATE**: 20260326

**DATE AS OF CHANGE**: 20260326

**ABS RULE**: RULE-15GA2

**REGISTERED ENTITY**: N

**ABS ASSET CLASS**: Commercial mortgages

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Citigroup Global Markets Inc.
- **CENTRAL INDEX KEY:** 0000315030

**ORGANIZATION NAME:**
- **EIN:** 112418191
- **STATE OF INCORPORATION:** NY
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ABS-15G
- **SEC ACT:** Dodd Frank Act
- **SEC FILE NUMBER:** 025-00520
- **FILM NUMBER:** 26799271

**BUSINESS ADDRESS:**
- **STREET 1:** 388 GREENWICH ST
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10013
- **BUSINESS PHONE:** 212-559-1000

**MAIL ADDRESS:**
- **STREET 1:** 388 GREENWICH ST
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10013

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CITIGROUP GLOBAL MARKETS INC
- **DATE OF NAME CHANGE:** 20030429

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SALOMON SMITH BARNEY INC /NY/
- **DATE OF NAME CHANGE:** 19981008

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SMITH BARNEY INC /NY/
- **DATE OF NAME CHANGE:** 19920929
**DEPOSITOR**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Citibank, N.A.
- **CENTRAL INDEX KEY:** 0001541816

**ORGANIZATION NAME:**
- **EIN:** 135266470
- **STATE OF INCORPORATION:** X1
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ABS-15G
- **SEC ACT:** Dodd Frank Act

**BUSINESS ADDRESS:**
- **STREET 1:** C/O CITIGROUP INC. SEC DISCLOSURES LEGAL
- **STREET 2:** 388 GREENWICH ST
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10013
- **BUSINESS PHONE:** 212-559-1000

**MAIL ADDRESS:**
- **STREET 1:** C/O CITIGROUP INC. SEC DISCLOSURES LEGAL
- **STREET 2:** 388 GREENWICH STREET, 17TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10013
**SECURITIZER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Citigroup Global Markets Inc.
- **CENTRAL INDEX KEY:** 0000315030

**ORGANIZATION NAME:**
- **EIN:** 112418191
- **STATE OF INCORPORATION:** NY
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ABS-15G
- **SEC ACT:** Dodd Frank Act
- **SEC FILE NUMBER:** 025-00520

**BUSINESS ADDRESS:**
- **STREET 1:** 388 GREENWICH ST
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10013
- **BUSINESS PHONE:** 212-559-1000

**MAIL ADDRESS:**
- **STREET 1:** 388 GREENWICH ST
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10013

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CITIGROUP GLOBAL MARKETS INC
- **DATE OF NAME CHANGE:** 20030429

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SALOMON SMITH BARNEY INC /NY/
- **DATE OF NAME CHANGE:** 19981008

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SMITH BARNEY INC /NY/
- **DATE OF NAME CHANGE:** 19920929
**UNDERWRITER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Citigroup Global Markets Inc.
- **CENTRAL INDEX KEY:** 0000315030

**ORGANIZATION NAME:**
- **EIN:** 112418191
- **STATE OF INCORPORATION:** NY
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ABS-15G
- **SEC ACT:** Dodd Frank Act

**BUSINESS ADDRESS:**
- **STREET 1:** 388 GREENWICH ST
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10013
- **BUSINESS PHONE:** 212-559-1000

**MAIL ADDRESS:**
- **STREET 1:** 388 GREENWICH ST
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10013

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CITIGROUP GLOBAL MARKETS INC
- **DATE OF NAME CHANGE:** 20030429

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SALOMON SMITH BARNEY INC /NY/
- **DATE OF NAME CHANGE:** 19981008

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SMITH BARNEY INC /NY/
- **DATE OF NAME CHANGE:** 19920929

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM ABS-15G**

**ASSET-BACKED SECURITIZER**

**REPORT PURSUANT TO SECTION 15G OF**

**THE SECURITIES EXCHANGE ACT OF 1934**

Check the appropriate box to indicate the filing obligation which this form is intended to satisfy:<br>

<u> </u> Rule 15Ga-1 under the Exchange Act (17 CFR 240.15Ga-1) for the reporting period _________________ to _________________

Date of Report (Date of earliest event reported)______________________

Commission File Number of securitizer: ____________________

Central Index Key Number of securitizer: ___________________

______________________________________________________________________

(Name and telephone number, including area code, of the person to contact in connection with this filing)

Indicate by check mark whether the securitizer has no activity to report for the initial period pursuant to Rule 15Ga-1(c)(1) [_]<br>Indicate by check mark whether the securitizer has no activity to report for the quarterly period pursuant to Rule 15Ga-1(c)(2)(i) [_]<br>Indicate by check mark whether the securitizer has no activity to report for the annual period pursuant to Rule 15Ga-1(c)(2)(ii) [_]

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>X</u> Rule 15Ga-2 under the Exchange Act (17 CFR 240.15Ga-2)

Central Index Key Number of depositor: 0001541816

**BX Pure Industrial Issuer Trust Canada**<br> ______________________________________________________________________________________

(Exact name of issuing entity as specified in its charter)

Central Index Key Number of issuing entity: Not applicable

Central Index Key Number of underwriter: 0000315030

Richard Simpson, Citigroup Global Markets Inc., (212) 816-5343<br> ______________________________________________________________________________________

(Name and telephone number, including area code, of the person to contact in connection with this filing)

**PART II – FINDINGS AND CONCLUSIONS OF THIRD-PARTY DUE DILIGENCE REPORTS**

**Item 2.01 Findings and Conclusions of a Third Party Due Diligence Report Obtained by the Issuer.**

Not Applicable

**Item 2.02 Findings and Conclusions of a Third Party Due Diligence Report Obtained by the Underwriter.**

See Report of Independent Accountants on Applying Agreed-Upon Procedures, dated March 26, 2026, which was obtained by the underwriter, attached as Exhibit 99.1 to this Form ABS-15G.

**Exhibits.**

99.1 Report of Independent Accountants on Applying Agreed-Upon Procedures, dated March 26, 2026.

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the reporting entity has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: March 26, 2026

Citigroup Global Markets Inc.

(Underwriter)

/s/ Richard Simpson

Name: Richard Simpson<br> Title: Authorized Signatory

**EXHIBIT INDEX**

Exhibit Number Description <br>Exhibit 99.1 Report of Independent Accountants on Applying Agreed-Upon Procedures, dated March 26, 2026.

## Exhibit 99.1

**Exhibit 99.1**

![[PWC Logo]](pwclogo.jpg)

**<u>Report of Independent Accountants on Applying</u>**

**<u>Agreed-Upon Procedures</u>**

Citi Real Estate Funding Inc.

Citigroup Commercial Mortgage Securities Inc.

390 Greenwich Street

New York, NY 10013

We ("us" or "PwC") have performed the procedures enumerated below, which were agreed to by Citi Real Estate Funding Inc. ("CREFI") and Citigroup Commercial Mortgage Securities Inc. (the "Company," as the engaging party) and Citigroup Global Markets Inc., BMO Capital Markets Corp., Bank of Montreal, BMO Nesbitt Burns Inc., RBC Dominion Securities Inc., RBC Capital Markets, LLC, Royal Bank of Canada, Morgan Stanley & Co. LLC, Morgan Stanley Bank, N.A., Morgan Stanley Mortgage Capital Holdings LLC, Scotia Capital Inc., Scotia Capital (USA) Inc, and The Bank of Nova Scotia, who are collectively referred to herein as the "Specified Parties", solely to assist you in performing certain procedures related to the accuracy of certain attributes and calculations within the Final Data File (defined below). The procedures were performed with respect to the Pure Industrial Issuer Trust Canada, Commercial Mortgage Pass-Through Certificates, Series 2026-PURE4 securitization (the "Transaction"). The Company (the "Responsible Party") is responsible for the accuracy of the information contained in the Final Data File.

In an agreed-upon procedures engagement, we perform specific procedures that the Specified Parties have agreed to and acknowledged to be appropriate for the intended purpose of the engagement and we report on findings based on the procedures performed. The procedures performed may not address all the items of interest to a user of this report and may not meet the needs of all users of this report and, as such, users are responsible for determining whether the procedures performed are appropriate for their purposes. The Specified Parties have agreed to and acknowledged that the procedures performed are appropriate for their purposes. This report may not be suitable for any other purpose.

**Procedures and Findings**

In connection with the Transaction, the Specified Parties have requested that the procedures be performed on 1 mortgage loan (the "Mortgage Loan Asset") secured by 8 mortgaged properties (comprised of 13 individual industrial buildings, the "Mortgaged Properties") which represents the entire population of the Mortgage Loan Asset and Mortgaged Properties (collectively the "Collateral") within the Transaction.

This agreed-upon procedures engagement was not conducted for the purpose of satisfying any criteria for due diligence published by a nationally recognized statistical rating organization.

In addition, PwC should not be regarded as having in any way warranted or given any assurance as to the following items:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· The completeness, accuracy, appropriateness, quality
or integrity of any of the information provided by the Responsible Party, or any other party for purposes of PwC performing the procedures
agreed to by the Specified Parties. The procedures performed would not necessarily reveal any material misstatement of the amounts, balances,
ratios, percentages or other relationships of the information included in the data provided to us;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· The conformity of the origination of the assets
to stated underwriting or credit extension guidelines, standards, criteria or other requirements;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· The existence of the assets or collateral securing
such assets;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· The rights of any party including, the
 Specified Parties, the Responsible Party, or the Transaction have to the assets or collateral securing such assets or any
 obligations on those assets or collateral securing such assets;

---

| | |
|:---|:---|
| www.pwc.com | *PricewaterhouseCoopers LLP <br> 300 Madison Avenue, New York, New York 10017<br> (646) 471-3000* |

---

![](pwclogo.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· The value of collateral securing such assets;
and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· The compliance of the originator of the assets
with federal, state, and local laws and regulations.

We have not performed any procedures with respect to the fair value of the securities being offered in the Transaction and PwC expresses no opinion on the current fair value of these securities. PwC should not be regarded as having performed any procedures other than those detailed in this report.

With respect to any terms or requirements of the Transaction documents that do not appear in this report, we performed no procedures and, accordingly, the procedures we performed would not ensure that any requirements are satisfied. Further, we have performed only the following agreed-upon procedures and therefore make no representations regarding the adequacy of disclosures or whether any material facts have been omitted from the Transaction documents.

It should be understood that we make no representations as to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· The interpretation of Transaction documents (including, but not limited to,
indenture agreements or offering documents) included in connection with our procedures;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· Your compliance with Rule 15Ga-2 of the Securities Exchange Act of 1934;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· The reasonableness of any of the assumptions provided by the Company or other
Specified Parties.

These procedures should not be taken to supplant any additional inquiries or procedures that the Specified Parties would undertake in consideration of the Transaction.

For the purpose of this report:

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Closing Date" refers to the date of April 15, 2026.

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Cut-off Date" refers to the date of April 4, 2026.

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Final Data File" refers to the following Microsoft Excel ("Excel")
file provided by the Company, which includes certain attributes related to the Collateral. The Final Data File was provided on March
26, 2026 with certain Collateral attribute calculations adjusted for the Closing Date:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o 2026-PURE4 Accounting Tape Final.xlsx (provided on March 26, 2026).

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Specified Attributes" refers to the fields in the Final Data File.

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Source Document" refers to the documents (including any applicable
amendments, assumptions or exhibits thereof) provided by the Company, related to the information contained in the Final Data File.

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Loan File" refers to any Source Document or collection of Source
Documents provided by the Company, and used by us, in performing the procedures enumerated below.

&nbsp;&nbsp;&nbsp;&nbsp;● The term "compared" refers to the comparison of one or more Specified Attributes
to Source Documents, as indicated within Exhibit A.

&nbsp;&nbsp;&nbsp;&nbsp;● The term "recalculated" refers to a re-computation of one or more Specified Attributes
using the Company provided methodology, as indicated within Exhibit B.

![](pwclogo.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "in agreement" refers to the comparison or recalculation of one or
more Specified Attributes which resulted in a match, or a difference that was within the Company provided tolerance level (if any), as
indicated within Exhibit A.

Source Documents included in the Loan File:

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Appraisal Report" refers to a signed appraisal document, exhibit,
or portfolio value letter.

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Engineering Report" refers to a draft or signed property condition
assessment document or exhibit.

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Environmental Report" refers to a draft or signed phase I and phase
II (if applicable) environmental document or exhibit.

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Fee Schedule" refers to the documentation for the administrative
fee rate related to the Transaction.

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Loan Agreement" refers to a draft loan agreement and any exhibits
or schedules thereof.

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Reserve Guaranty" refers to a draft reserve guaranty agreement and
any exhibits or schedules thereof.

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Seismic Report" refers to a draft or signed seismic assessment document
or exhibit.

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Title Policy" refers to a draft or signed proforma title policy or
commitment.

&nbsp;&nbsp;&nbsp;&nbsp;● The phrase "Underwriting File" refers to the historical and pro-forma cash flow
statements prepared by the Company's underwriting team.

The procedures performed and results thereof are described below. In performing this engagement, we received one or more preliminary Transaction documents and performed certain procedures as set forth in Exhibit A and Exhibit B. The procedures identified differences, which were communicated to the Responsible Party. The Responsible Party revised one or more of the preliminary Transaction documents based on such communicated differences, where they determined it to be appropriate. We performed these procedures on the final Transaction documents, and the results of those procedures are described below.

From February 3, 2026 through March 26, 2026, the Company provided us with the Source Documents related to the Collateral for which we:

● Compared certain Specified Attributes to the corresponding Source Documents as detailed in Exhibit A and found them to be in agreement (the "Compared Attributes");

● Recalculated certain Specified Attributes as detailed in Exhibit B and found them to be in agreement (the "Recalculated Attributes"); or

● Assumed certain Specified Attributes were accurate as instructed by the Company, and neither compared nor recalculated the Specified Attributes (the "Company Provided Attributes").

![](pwclogo.jpg)

The recalculation methodology associated with the Recalculated Attributes is listed in Exhibit B. For each procedure where a recalculation was performed, if necessary, we compared the underlying attributes to the corresponding Source Documents and found them to be in agreement. We did not perform any procedures with respect to the Specified Attributes denoted with a Source Document of "None - Company Provided", in Exhibit A.

This agreed-upon procedures engagement was conducted in accordance with attestation standards established by the American Institute of Certified Public Accountants. We were not engaged to, and did not, conduct an audit or an examination engagement, the objective of which would be the expression of an opinion, or a review engagement, the objective of which would be the expression of a conclusion, on the Final Data File. 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.

In performing this engagement, we are required to be independent of the Responsible Party and to meet our ethical responsibilities, in accordance with the relevant ethical requirements related to our agreed-upon procedures engagement.

This report is intended solely for the information and use of the Specified Parties **(**including for purposes of substantiating the Specified Parties' "due diligence defense" under the Securities Act of 1933), and is not intended to be and should not be used by anyone other than the Specified Parties.

If a party has obtained, or has access to, this report without having executed an agreement with PwC wherein such party accepts responsibility for the appropriateness of the procedures performed (such party is herein referred to as a "Non-Specified Party"), that Non-Specified Party cannot:

&nbsp;&nbsp;&nbsp;&nbsp;i) rely upon this report, and any use of this report by that Non-Specified Party is its sole responsibility and at its sole and exclusive
risk; and

ii) acquire any rights or claims against PwC, and PwC assumes no duties or obligations to such Non-Specified Party.

A Non-Specified Party may not disclose or distribute this report or any of the report's contents to any other party (including but not limited to electronic distribution and/or posting to a website pursuant to Rule 17G-5 of the Securities Exchange Act of 1934).

The procedures enumerated above were performed as of the date of this report, and we disclaim any consideration of any events and circumstances occurring after the date of this report. Further, we have no obligation to update this report because of events occurring, or data or information coming to our attention, subsequent to the date of this report.

/s/PricewaterhouseCoopers LLP

New York, NY

March 26, 2026

**Exhibits**

Exhibit A – Loan File Review Procedures

Exhibit B – Recalculation Methodology

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

**Exhibit A – Loan File Review Procedures** 

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;1 | &nbsp;&nbsp;Property ID | &nbsp;&nbsp;None - Company Provided |  |
| &nbsp;&nbsp;2 | &nbsp;&nbsp;Property Rank | &nbsp;&nbsp;None - Company Provided |  |
| &nbsp;&nbsp;3 | &nbsp;&nbsp;Building Name | &nbsp;&nbsp;None - Company Provided |  |
| &nbsp;&nbsp;4 | &nbsp;&nbsp;Property Name | &nbsp;&nbsp;None - Company Provided |  |
| &nbsp;&nbsp;5 | &nbsp;&nbsp;Building Type | &nbsp;&nbsp;Appraisal Report |  |
| &nbsp;&nbsp;6 | &nbsp;&nbsp;Building Sub-Type | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;7 | &nbsp;&nbsp;Address | &nbsp;&nbsp;Appraisal Report |  |
| &nbsp;&nbsp;8 | &nbsp;&nbsp;City | &nbsp;&nbsp;Appraisal Report |  |
| &nbsp;&nbsp;9 | &nbsp;&nbsp;Province | &nbsp;&nbsp;Appraisal Report |  |
| &nbsp;&nbsp;10 | &nbsp;&nbsp;Postal Code | &nbsp;&nbsp;Appraisal Report; Engineering Report |  |
| &nbsp;&nbsp;11 | &nbsp;&nbsp;Market | &nbsp;&nbsp;Appraisal Report |  |
| &nbsp;&nbsp;12 | &nbsp;&nbsp;Year Built | &nbsp;&nbsp;Appraisal Report; Engineering Report |  |
| &nbsp;&nbsp;13 | &nbsp;&nbsp;Year Renovated | &nbsp;&nbsp;Engineering Report |  |
| &nbsp;&nbsp;14 | &nbsp;&nbsp;Wtd. Avg. Clear Height | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;15 | &nbsp;&nbsp;Total NRA | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;16 | &nbsp;&nbsp;Unit of Measure | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;17 | &nbsp;&nbsp;Occupancy (%) | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;18 | &nbsp;&nbsp;Occupancy Date | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;19 | &nbsp;&nbsp;Flex SF | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;20 | &nbsp;&nbsp;Flex % of NRA | &nbsp;&nbsp;Underwriting File |  |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;21 | &nbsp;&nbsp;% of NRA Leased to Investment Grade Tenants | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;22 | &nbsp;&nbsp;% of UW Base Rent from Investment Grade Tenants | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;23 | &nbsp;&nbsp;# of tenants | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;24 | &nbsp;&nbsp;WA Lease Expiration Date | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;25 | &nbsp;&nbsp;WA Lease Term Remaining | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;26 | &nbsp;&nbsp;Ownership Interest | &nbsp;&nbsp;Title Policy |  |
| &nbsp;&nbsp;27 | &nbsp;&nbsp;Mortgage Loan Closing Date Balance | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;28 | &nbsp;&nbsp;Mortgage Loan Closing Date Balance per SF | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;29 | &nbsp;&nbsp;% of Mortgage Loan Closing Date Balance | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;30 | &nbsp;&nbsp;Mortgage Loan Maturity Date Balance | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;31 | &nbsp;&nbsp;Individual As-Is Appraised Value Date | &nbsp;&nbsp;Appraisal Report |  |
| &nbsp;&nbsp;32 | &nbsp;&nbsp;Individual As-Is Appraised Value | &nbsp;&nbsp;Appraisal Report |  |
| &nbsp;&nbsp;33 | &nbsp;&nbsp;Individual As-Is Appraised Value per SF | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;34 | &nbsp;&nbsp;Portfolio Appraised Value Date | &nbsp;&nbsp;Appraisal Report |  |
| &nbsp;&nbsp;35 | &nbsp;&nbsp;Portfolio Appraised Value | &nbsp;&nbsp;Appraisal Report |  |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;36 | &nbsp;&nbsp;Portfolio Appraised Value per SF | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;37 | &nbsp;&nbsp;Portfolio Premium | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;38 | &nbsp;&nbsp;Engineering Report Provider | &nbsp;&nbsp;Engineering Report |  |
| &nbsp;&nbsp;39 | &nbsp;&nbsp;Engineering Report Date | &nbsp;&nbsp;Engineering Report |  |
| &nbsp;&nbsp;40 | &nbsp;&nbsp;Environmental Report Provider | &nbsp;&nbsp;Environmental Report |  |
| &nbsp;&nbsp;41 | &nbsp;&nbsp;Environmental Report Date | &nbsp;&nbsp;Environmental Report |  |
| &nbsp;&nbsp;42 | &nbsp;&nbsp;Phase II Required? | &nbsp;&nbsp;Environmental Report |  |
| &nbsp;&nbsp;43 | &nbsp;&nbsp;Seismic Zone | &nbsp;&nbsp;Seismic Report |  |
| &nbsp;&nbsp;44 | &nbsp;&nbsp;PML % | &nbsp;&nbsp;Seismic Report |  |
| &nbsp;&nbsp;45 | &nbsp;&nbsp;Origination Date | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;46 | &nbsp;&nbsp;Assumed Daily Compounded CORRA | &nbsp;&nbsp;None - Company Provided |  |
| &nbsp;&nbsp;47 | &nbsp;&nbsp;Assumed Mortgage Loan Spread | &nbsp;&nbsp;None - Company Provided |  |
| &nbsp;&nbsp;48 | &nbsp;&nbsp;Daily Compounded CORRA Cap | &nbsp;&nbsp;None - Company Provided |  |
| &nbsp;&nbsp;49 | &nbsp;&nbsp;Mortgage Loan Interest Rate at CORRA Cap | &nbsp;&nbsp;Recalculation |  |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;50 | &nbsp;&nbsp;Daily Compounded CORRA Methodology | &nbsp;&nbsp;None - Company Provided |  |
| &nbsp;&nbsp;51 | &nbsp;&nbsp;CORRA Cap Expiration Date | &nbsp;&nbsp;None - Company Provided |  |
| &nbsp;&nbsp;52 | &nbsp;&nbsp;Interest Calculation | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;53 | &nbsp;&nbsp;Amort Type | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;54 | &nbsp;&nbsp;Monthly Mortgage Loan Debt Service Payment | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;55 | &nbsp;&nbsp;Annual Mortgage Loan Debt Service Payment | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;56 | &nbsp;&nbsp;Monthly Mortgage Loan Debt Service Payment at Daily Compounded CORRA Cap | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;57 | &nbsp;&nbsp;Annual Mortgage Loan Debt Service Payment at Daily Compounded CORRA Cap | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;58 | &nbsp;&nbsp;Grace Period | &nbsp;&nbsp;Loan Agreement |  |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;59 | &nbsp;&nbsp;First Loan Payment Date | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;60 | &nbsp;&nbsp;Seasoning | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;61 | &nbsp;&nbsp;Original Term to Maturity (Months) | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;62 | &nbsp;&nbsp;Remaining Term to Maturity (Months) | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;63 | &nbsp;&nbsp;Original Amortization Term (Months) | &nbsp;&nbsp;Not Applicable\* |  |
| &nbsp;&nbsp;64 | &nbsp;&nbsp;Remaining Amortization Term (Months) | &nbsp;&nbsp;Not Applicable\* |  |
| &nbsp;&nbsp;65 | &nbsp;&nbsp;Original IO Term (Months) | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;66 | &nbsp;&nbsp;Remaining IO Term (Months) | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;67 | &nbsp;&nbsp;Initial Maturity Date | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;68 | &nbsp;&nbsp;Floating Rate Component Extensions | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;69 | &nbsp;&nbsp;Fully Extended Maturity Date | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;70 | &nbsp;&nbsp;Lockbox | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;71 | &nbsp;&nbsp;Cash Management Type | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;72 | &nbsp;&nbsp;Cash Management Trigger | &nbsp;&nbsp;Loan Agreement |  |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;73 | &nbsp;&nbsp;Administrative Fee Rate (%) | &nbsp;&nbsp;Fee Schedule |  |
| &nbsp;&nbsp;74 | &nbsp;&nbsp;Floating Rate Component Prepayment Provision | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;75 | &nbsp;&nbsp;Partial Release Allowed? | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;76 | &nbsp;&nbsp;Property Release Description | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;77 | &nbsp;&nbsp;Mortgage Loan Closing Date LTV (Portfolio Value) | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;78 | &nbsp;&nbsp;Mortgage Loan Balloon LTV (Portfolio Value) | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;79 | &nbsp;&nbsp;Mortgage Loan Closing Date LTV (Aggregate As-is Values) | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;80 | &nbsp;&nbsp;Mortgage Loan Balloon LTV (Aggregate As-is Values) | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;81 | &nbsp;&nbsp;Mortgage Loan UW NOI Debt Yield | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;82 | &nbsp;&nbsp;Mortgage Loan UW NCF Debt Yield | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;83 | &nbsp;&nbsp;Mortgage Loan UW NOI DSCR | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;84 | &nbsp;&nbsp;Mortgage Loan UW NCF DSCR | &nbsp;&nbsp;Recalculation |  |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;85 | &nbsp;&nbsp;Mortgage Loan UW NOI DSCR at Daily Compounded CORRA Cap | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;86 | &nbsp;&nbsp;Mortgage Loan UW NCF DSCR at Daily Compounded CORRA Cap | &nbsp;&nbsp;Recalculation |  |
| &nbsp;&nbsp;87 | &nbsp;&nbsp;Initial Tax Escrow | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;88 | &nbsp;&nbsp;Ongoing Tax Escrow Monthly | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;89 | &nbsp;&nbsp;Tax Escrow Springing Conditions | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;90 | &nbsp;&nbsp;Initial Insurance Escrow | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;91 | &nbsp;&nbsp;Ongoing Insurance Escrow Monthly | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;92 | &nbsp;&nbsp;Insurance Escrow Springing Conditions | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;93 | &nbsp;&nbsp;Initial Immediate Repairs Escrow | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;94 | &nbsp;&nbsp;Initial CapEx Escrow | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;95 | &nbsp;&nbsp;Ongoing Cap Ex Escrow Monthly | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;96 | &nbsp;&nbsp;Cap Ex Escrow Springing Conditions | &nbsp;&nbsp;Loan Agreement |  |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;97 | &nbsp;&nbsp;Initial TI/LC Escrow | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;98 | &nbsp;&nbsp;Ongoing TI/LC Escrow Monthly | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;99 | &nbsp;&nbsp;TI/LC Escrow Springing Conditions | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;100 | &nbsp;&nbsp;Initial Other Escrow | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;101 | &nbsp;&nbsp;Ongoing Other Escrow Monthly | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;102 | &nbsp;&nbsp;Ongoing Other Escrow Springing Condition | &nbsp;&nbsp;Loan Agreement |  |
| &nbsp;&nbsp;103 | &nbsp;&nbsp;Other Escrow Description | &nbsp;&nbsp;Reserve Guaranty |  |
| &nbsp;&nbsp;104 | &nbsp;&nbsp;Largest Tenant (by UW Gross Rent) Tenant Name | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;105 | &nbsp;&nbsp;Largest Tenant (by UW Gross Rent) Lease Exp. | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;106 | &nbsp;&nbsp;Largest Tenant (by UW Gross Rent) NRA | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;107 | &nbsp;&nbsp;Largest Tenant (by UW Gross Rent) % of NRA | &nbsp;&nbsp;Underwriting File |  |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;108 | &nbsp;&nbsp;Largest Tenant (by UW Gross Rent) UW Base Rent | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;109 | &nbsp;&nbsp;Largest Tenant (by UW Gross Rent) UW Gross Rent | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;110 | &nbsp;&nbsp;2nd Largest Tenant (by UW Gross Rent) Tenant Name | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;111 | &nbsp;&nbsp;2nd Largest Tenant (by UW Gross Rent) Lease Exp. | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;112 | &nbsp;&nbsp;2nd Largest Tenant (by UW Gross Rent) NRA | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;113 | &nbsp;&nbsp;2nd Largest Tenant (by UW Gross Rent) % of NRA | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;114 | &nbsp;&nbsp;2nd Largest Tenant (by UW Gross Rent) UW Base Rent | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;115 | &nbsp;&nbsp;2nd Largest Tenant (by UW Gross Rent) UW Gross Rent | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;116 | &nbsp;&nbsp;3rd Largest Tenant (by UW Gross Rent) Tenant Name | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;117 | &nbsp;&nbsp;3rd Largest Tenant (by UW Gross Rent) Lease Exp. | &nbsp;&nbsp;Underwriting File |  |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;118 | &nbsp;&nbsp;3rd Largest Tenant (by UW Gross Rent) NRA | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;119 | &nbsp;&nbsp;3rd Largest Tenant (by UW Gross Rent) % of NRA | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;120 | &nbsp;&nbsp;3rd Largest Tenant (by UW Gross Rent) UW Base Rent | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;121 | &nbsp;&nbsp;3rd Largest Tenant (by UW Gross Rent) UW Gross Rent | &nbsp;&nbsp;Underwriting File |  |
| &nbsp;&nbsp;122 | &nbsp;&nbsp;Base Rent 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;123 | &nbsp;&nbsp;Base Rent 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;124 | &nbsp;&nbsp;Base Rent 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;125 | &nbsp;&nbsp;Base Rent Sponsor Year 1 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;126 | &nbsp;&nbsp;Base Rent Sponsor Year 2 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;127 | &nbsp;&nbsp;Base Rent UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;128 | &nbsp;&nbsp;Potential Income from Vacant Space 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;129 | &nbsp;&nbsp;Potential Income from Vacant Space 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;130 | &nbsp;&nbsp;Potential Income from Vacant Space 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;131 | &nbsp;&nbsp;Potential Income from Vacant Space Year 1 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;132 | &nbsp;&nbsp;Potential Income from Vacant Space Year 2 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;133 | &nbsp;&nbsp;Potential Income from Vacant Space UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;134 | &nbsp;&nbsp;Credit Rent Steps 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;135 | &nbsp;&nbsp;Credit Rent Steps 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;136 | &nbsp;&nbsp;Credit Rent Steps 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;137 | &nbsp;&nbsp;Credit Rent Steps Year 1 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;138 | &nbsp;&nbsp;Credit Rent Steps Year 2 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;139 | &nbsp;&nbsp;Credit Rent Steps UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;140 | &nbsp;&nbsp;Rent Steps 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;141 | &nbsp;&nbsp;Rent Steps 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;142 | &nbsp;&nbsp;Rent Steps 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;143 | &nbsp;&nbsp;Rent Steps Year 1 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;144 | &nbsp;&nbsp;Rent Steps Year 2 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;145 | &nbsp;&nbsp;Rent Steps UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;146 | &nbsp;&nbsp;Recoveries 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;147 | &nbsp;&nbsp;Recoveries 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;148 | &nbsp;&nbsp;Recoveries 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;149 | &nbsp;&nbsp;Recoveries Year 1 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;150 | &nbsp;&nbsp;Recoveries Year 2 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;151 | &nbsp;&nbsp;Recoveries UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;152 | &nbsp;&nbsp;Gross Potential Rent 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;153 | &nbsp;&nbsp;Gross Potential Rent 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;154 | &nbsp;&nbsp;Gross Potential Rent 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;155 | &nbsp;&nbsp;Gross Potential Rent Sponsor Year 1 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;156 | &nbsp;&nbsp;Gross Potential Rent Sponsor Year 2 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;157 | &nbsp;&nbsp;Gross Potential Rent UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;158 | &nbsp;&nbsp;Other Income 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;159 | &nbsp;&nbsp;Other Income 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;160 | &nbsp;&nbsp;Other Income 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;161 | &nbsp;&nbsp;Other Income Year 1 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;162 | &nbsp;&nbsp;Other Income Year 2 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;163 | &nbsp;&nbsp;Other Income UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;164 | &nbsp;&nbsp;Econ. Vacancy & Credit Loss 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;165 | &nbsp;&nbsp;Econ. Vacancy & Credit Loss 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;166 | &nbsp;&nbsp;Econ. Vacancy & Credit Loss 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;167 | &nbsp;&nbsp;Econ. Vacancy & Credit Loss Sponsor Year 1 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;168 | &nbsp;&nbsp;Econ. Vacancy & Credit Loss Sponsor Year 2 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;169 | &nbsp;&nbsp;Econ. Vacancy & Credit Loss UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;170 | &nbsp;&nbsp;Effective Gross Income 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;171 | &nbsp;&nbsp;Effective Gross Income 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;172 | &nbsp;&nbsp;Effective Gross Income 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;173 | &nbsp;&nbsp;Effective Gross Income Sponsor Year 1 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;174 | &nbsp;&nbsp;Effective Gross Income Sponsor Year 2 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;175 | &nbsp;&nbsp;Effective Gross Income UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;176 | &nbsp;&nbsp;Management Fee 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;177 | &nbsp;&nbsp;Management Fee 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;178 | &nbsp;&nbsp;Management Fee 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;179 | &nbsp;&nbsp;Management Fee Year 1 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;180 | &nbsp;&nbsp;Management Fee Year 2 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;181 | &nbsp;&nbsp;Management Fee UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;182 | &nbsp;&nbsp;Repairs & Maintenance 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;183 | &nbsp;&nbsp;Repairs & Maintenance 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;184 | &nbsp;&nbsp;Repairs & Maintenance 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;185 | &nbsp;&nbsp;Repairs & Maintenance Year 1 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;186 | &nbsp;&nbsp;Repairs & Maintenance Year 2 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;187 | &nbsp;&nbsp;Repairs & Maintenance UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;188 | &nbsp;&nbsp;Real Estate Taxes 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;189 | &nbsp;&nbsp;Real Estate Taxes 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;190 | &nbsp;&nbsp;Real Estate Taxes 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;191 | &nbsp;&nbsp;Real Estate Taxes Year 1 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;192 | &nbsp;&nbsp;Real Estate Taxes Year 2 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;193 | &nbsp;&nbsp;Real Estate Taxes UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;194 | &nbsp;&nbsp;Insurance 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;195 | &nbsp;&nbsp;Insurance 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;196 | &nbsp;&nbsp;Insurance 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;197 | &nbsp;&nbsp;Insurance Year 1 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;198 | &nbsp;&nbsp;Insurance Year 2 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;199 | &nbsp;&nbsp;Insurance UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;200 | &nbsp;&nbsp;Non-Recoverable 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;201 | &nbsp;&nbsp;Non-Recoverable 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;202 | &nbsp;&nbsp;Non-Recoverable 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;203 | &nbsp;&nbsp;Non-Recoverable Year 1 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;204 | &nbsp;&nbsp;Non-Recoverable Year 2 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;205 | &nbsp;&nbsp;Non-Recoverable UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;206 | &nbsp;&nbsp;Total Operating Expenses 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;207 | &nbsp;&nbsp;Total Operating Expenses 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;208 | &nbsp;&nbsp;Total Operating Expenses 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;209 | &nbsp;&nbsp;Total Operating Expenses Sponsor Year 1 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;210 | &nbsp;&nbsp;Total Operating Expenses Sponsor Year 2 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;211 | &nbsp;&nbsp;Total Operating Expenses UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;212 | &nbsp;&nbsp;Net Operating Income 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;213 | &nbsp;&nbsp;Net Operating Income 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;214 | &nbsp;&nbsp;Net Operating Income 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;215 | &nbsp;&nbsp;Net Operating Income Sponsor Year 1 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;216 | &nbsp;&nbsp;Net Operating Income Sponsor Year 2 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;217 | &nbsp;&nbsp;Net Operating Income UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;218 | &nbsp;&nbsp;TI/LC's 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;219 | &nbsp;&nbsp;TI/LC's 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;220 | &nbsp;&nbsp;TI/LC's 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;221 | &nbsp;&nbsp;TI/LC's Year 1 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;222 | &nbsp;&nbsp;TI/LC's Year 2 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;223 | &nbsp;&nbsp;TI/LC's UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;224 | &nbsp;&nbsp;Replacement Reserves 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;225 | &nbsp;&nbsp;Replacement Reserves 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;226 | &nbsp;&nbsp;Replacement Reserves 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;227 | &nbsp;&nbsp;Replacement Reserves Year 1 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;228 | &nbsp;&nbsp;Replacement Reserves Year 2 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;229 | &nbsp;&nbsp;Replacement Reserves UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;230 | &nbsp;&nbsp;Net Cash Flow 2023 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |

---

BX 2026-PURE4 <br> Loan File Review Procedures EXHIBIT A

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Source Document (by order of priority)** | &nbsp;&nbsp;**Tolerance Levels** |
| &nbsp;&nbsp;231 | &nbsp;&nbsp;Net Cash Flow 2024 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;232 | &nbsp;&nbsp;Net Cash Flow 2025 | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;233 | &nbsp;&nbsp;Net Cash Flow Sponsor Year 1 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;234 | &nbsp;&nbsp;Net Cash Flow Sponsor Year 2 Budget | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |
| &nbsp;&nbsp;235 | &nbsp;&nbsp;Net Cash Flow UW | &nbsp;&nbsp;Underwriting File | &nbsp;&nbsp;$1.00 |

---

\* The fields for the noted Specified Attributes were either not populated in the Final Data File or populated with the term "NAP". As such, we were instructed by the Company to not perform any procedures on these Specified Attributes.

BX 2026-PURE4 <br> Recalculation Methodology EXHIBIT B

**Exhibit B – Recalculation Methodology**

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Recalculation Methodology** |
| &nbsp;&nbsp;21 | &nbsp;&nbsp;% of NRA Leased to Investment Grade Tenants | &nbsp;&nbsp;Quotient of (i) sum of investment grade tenant square feet from the Underwriting File and (ii) Total NRA. |
| &nbsp;&nbsp;22 | &nbsp;&nbsp;% of UW Base Rent from Investment Grade Tenants | &nbsp;&nbsp;Quotient of (i) sum of investment grade tenant underwritten base rent from the Underwriting File and (ii) sum of the total underwritten base rent from the Underwriting File. |
| &nbsp;&nbsp;24 | &nbsp;&nbsp;WA Lease Expiration Date | &nbsp;&nbsp;A computation from the Underwriting File in which the lease expiration date for each tenant at each Mortgaged Property was multiplied by the corresponding underwritten base rent. Such amounts were summed and then divided by the aggregate underwritten base rent of the respective Mortgaged Property. |
| &nbsp;&nbsp;25 | &nbsp;&nbsp;WA Lease Term Remaining | &nbsp;&nbsp;Quotient of the count of the (i) number of days between the Cut-off Date and respective WA Lease Expiration Date and (ii) 365. |
| &nbsp;&nbsp;28 | &nbsp;&nbsp;Mortgage Loan Closing Date Balance per SF | &nbsp;&nbsp;Quotient of (i) Mortgage Loan Closing Date Balance and (ii) Total NRA. |
| &nbsp;&nbsp;29 | &nbsp;&nbsp;% of Mortgage Loan Closing Date Balance | &nbsp;&nbsp;Quotient of (i) Mortgage Loan Closing Date Balance and (ii) the aggregate Mortgage Loan Closing Date Balance of the Collateral. |
| &nbsp;&nbsp;33 | &nbsp;&nbsp;Individual As-Is Appraised Value per SF | &nbsp;&nbsp;Quotient of (i) aggregate Individual As-Is Appraised Value and (ii) Total NRA. |
| &nbsp;&nbsp;36 | &nbsp;&nbsp;Portfolio Appraised Value per SF | &nbsp;&nbsp;Quotient of (i) Portfolio Appraised Value and (ii)<br> Total NRA. |
| &nbsp;&nbsp;37 | &nbsp;&nbsp;Portfolio Premium | &nbsp;&nbsp;Difference between (i) quotient of (a) Portfolio<br> Appraised Value and (b) Aggregate Individual<br> Appraised Value, and (ii) 1. |
| &nbsp;&nbsp;49 | &nbsp;&nbsp;Mortgage Loan Interest Rate at CORRA Cap | &nbsp;&nbsp;Sum of (i) Daily Compounded CORRA Cap and (ii) Assumed Mortgage Loan Spread. |
| &nbsp;&nbsp;54 | &nbsp;&nbsp;Monthly Mortgage Loan Debt Service Payment | &nbsp;&nbsp;Quotient of (i) Annual Mortgage Loan Debt Service Payment and (ii) 12. |
| &nbsp;&nbsp;55 | &nbsp;&nbsp;Annual Mortgage Loan Debt Service Payment | &nbsp;&nbsp;Product of (i) Mortgage Loan Closing Date Balance, (ii) sum of (a) Assumed Daily Compounded CORRA and (b) Assumed Mortgage Loan Spread, and (iii) Interest Calculation. |

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| www.pwc.com | *PricewaterhouseCoopers LLP <br> 300 Madison Avenue, New York, New York 10017<br> (646) 471-3000* |

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BX 2026-PURE4 <br> Recalculation Methodology EXHIBIT B

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|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Recalculation Methodology** |
| &nbsp;&nbsp;56 | &nbsp;&nbsp;Monthly Mortgage Loan Debt Service Payment at Daily Compounded CORRA Cap | &nbsp;&nbsp;Quotient of (i) Annual Mortgage Loan Debt Service Payment at Daily Compounded CORRA Cap and (ii) 12. |
| &nbsp;&nbsp;57 | &nbsp;&nbsp;Annual Mortgage Loan Debt Service Payment at Daily Compounded CORRA Cap | &nbsp;&nbsp;Product of (i) Mortgage Loan Closing Date Balance, (ii) Mortgage Loan Interest Rate at CORRA Cap, and (iii) Interest Calculation. |
| &nbsp;&nbsp;60 | &nbsp;&nbsp;Seasoning | &nbsp;&nbsp;Count of the number of monthly payment dates from, and inclusive of (i) First Loan Payment Date, to and inclusive of (ii) Closing Date. |
| &nbsp;&nbsp;61 | &nbsp;&nbsp;Original Term to Maturity (Months) | &nbsp;&nbsp;Count of the number of monthly payment dates from, and inclusive of (i) First Loan Payment Date through and including (ii) the Initial Maturity Date. |
| &nbsp;&nbsp;62 | &nbsp;&nbsp;Remaining Term to Maturity (Months) | &nbsp;&nbsp;Difference between (i) Original Term to Maturity (Months) and (ii) Seasoning. |
| &nbsp;&nbsp;65 | &nbsp;&nbsp;Original IO Term (Months) | &nbsp;&nbsp;Set equal to the Original Term to Maturity (Months). |
| &nbsp;&nbsp;66 | &nbsp;&nbsp;Remaining IO Term (Months) | &nbsp;&nbsp;Difference between (i) Original IO Term (Months) and (ii) Seasoning. |
| &nbsp;&nbsp;77 | &nbsp;&nbsp;Mortgage Loan Closing Date LTV (Portfolio Value) | &nbsp;&nbsp;Quotient of (i) Mortgage Loan Closing Date<br> Balance and (ii) Portfolio Appraised Value. |
| &nbsp;&nbsp;78 | &nbsp;&nbsp;Mortgage Loan Balloon LTV (Portfolio Value) | &nbsp;&nbsp;Quotient of (i) Mortgage Loan Maturity Date<br> Balance and (ii) Portfolio Appraised Value |
| &nbsp;&nbsp;79 | &nbsp;&nbsp;Mortgage Loan Closing Date LTV (Aggregate As-is Values) | &nbsp;&nbsp;Quotient of (i) Mortgage Loan Closing Date Balance and (ii) aggregate Individual As-Is Appraised Value. |
| &nbsp;&nbsp;80 | &nbsp;&nbsp;Mortgage Loan Balloon LTV (Aggregate As-is Values) | &nbsp;&nbsp;Quotient of (i) Mortgage Loan Maturity Date Balance and (ii) aggregate Individual As-Is Appraised Value. |
| &nbsp;&nbsp;81 | &nbsp;&nbsp;Mortgage Loan UW NOI Debt Yield | &nbsp;&nbsp;Quotient of (i) Net Operating Income UW and (ii) Mortgage Loan Closing Date Balance. |
| &nbsp;&nbsp;82 | &nbsp;&nbsp;Mortgage Loan UW NCF Debt Yield | &nbsp;&nbsp;Quotient of (i) Net Cash Flow UW and (ii) Mortgage Loan Closing Date Balance. |
| &nbsp;&nbsp;83 | &nbsp;&nbsp;Mortgage Loan UW NOI DSCR | &nbsp;&nbsp;Quotient of (i) Net Operating Income UW and (ii) Annual Mortgage Loan Debt Service Payment. |
| &nbsp;&nbsp;84 | &nbsp;&nbsp;Mortgage Loan UW NCF DSCR | &nbsp;&nbsp;Quotient of (i) Net Cash Flow UW and (ii) Annual Mortgage Loan Debt Service Payment. |
| &nbsp;&nbsp;85 | &nbsp;&nbsp;Mortgage Loan UW NOI DSCR at Daily Compounded CORRA Cap | &nbsp;&nbsp;Quotient of (i) Net Operating Income UW and (ii) Annual Mortgage Loan Debt Service Payment at Daily Compounded CORRA Cap. |

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BX 2026-PURE4 <br> Recalculation Methodology EXHIBIT B

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|:---|:---|:---|
| &nbsp;&nbsp;**#** | &nbsp;&nbsp;**Specified Attribute** | &nbsp;&nbsp;**Recalculation Methodology** |
| &nbsp;&nbsp;86 | &nbsp;&nbsp;Mortgage Loan UW NCF DSCR at Daily Compounded CORRA Cap | &nbsp;&nbsp;Quotient of (i) Net Cash Flow UW and (ii) Annual Mortgage Loan Debt Service Payment at Daily Compounded CORRA Cap. |

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