Exhibit 1

		Deloitte & Touche LLP
		3 Second Street Suite 301
		Harborside Plaza 10
		Jersey City, NJ 07302
		USA
		Tel:   +1 212 937 8202
		www.deloitte.com

Independent Accountants’ Report

on Applying Agreed-Upon Procedures

We have performed the procedures described below related to certain information with respect to a mortgage loan in connection with the proposed offering of certain classes of BX Trust 2026-LBTY, Commercial Mortgage Pass-Through Certificates, Series 2026-LBTY. Morgan Stanley & Co. LLC, Morgan Stanley Capital I Inc. and Morgan Stanley Mortgage Capital Holdings LLC (collectively, the “Company”) are responsible for the information provided to us, including the information set forth in the Data File (as defined herein).

The Company has agreed to the procedures and acknowledged that the procedures performed are appropriate to meet the intended purpose of evaluating the accuracy of certain information set forth in the Data File. Additionally, Barclays Capital Inc., Barclays Capital Real Estate Inc., Natixis Real Estate Capital LLC, Natixis Securities Americas LLC, Scotia Capital (USA) Inc., The Bank of Nova Scotia, Royal Bank of Canada, RBC Capital Markets, LLC and Truist Securities, Inc. (collectively, with the Company, the “Specified Parties”) have agreed to the procedures and acknowledged that the procedures performed are appropriate for their purposes. 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. Consequently, we make no representations regarding the appropriateness of the procedures described below either for the purpose for which this report has been requested or for any other purpose.

We performed certain procedures on earlier versions of the Data File and communicated differences prior to being provided the final Data File which was subjected to the procedures described below.

Capitalized terms used but not defined herein are used with the meanings as described in “The Bond Market Association's Standard Formulas for the Analysis of Mortgage-Backed Securities and Other Related Securities.”

Procedures and Findings

On July 28, 2026, representatives of the Company provided us with a computer-generated mortgage loan data file and related record layout (the “Data File”) containing one mortgage loan (the “Mortgage Loan”) that is secured by 15 mortgaged properties (collectively, with the Mortgage Loan, the “Mortgage Asset”).

From July 13, 2026 through July 28, 2026, representatives of the Company provided us with certain Source Documents (as defined in the attached Appendix A) related to the Mortgage Asset.

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At your request, for the Mortgage Asset set forth on the Data File, we compared certain characteristics (the “Characteristics” as indicated on Appendix A), except for those Characteristics identified on Appendix A as “Identification purposes only - not applicable,” “None - Company Provided” or “Not applicable,” to the corresponding information set forth on or derived from the corresponding Source Documents and found them to be in agreement.

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We make no representations as to (i) the actual characteristics or existence of the underlying documents or data comprising the Mortgage Asset underlying the Data File or the conformity of their respective characteristics with those assumed for purposes of the procedures described herein, (ii) whether the Source Documents are comprehensive and valid instruments and reflect the current prevailing terms with respect to the Mortgage Asset, (iii) the existence or ownership of the Mortgage Asset or (iv) the reasonableness of any of the aforementioned assumptions, information or methodologies.

It should be understood that we make no representations as to questions of legal interpretation or as to the sufficiency for your purposes of the procedures enumerated in the preceding paragraphs. Also, such procedures would not necessarily reveal any material misstatement of the information referred to above. We have no responsibility to update this report for events and circumstances that occur subsequent to the date of this report.

We were engaged by the Company to perform this agreed-upon procedures engagement and conducted our engagement in accordance with attestation standards established by the American Institute of Certified Public Accountants (“AICPA”). An agreed-upon procedures engagement involves the practitioner performing specific procedures that the engaging party has 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 conduct, and did not conduct, an (i) audit conducted in accordance with generally accepted auditing standards or (ii) examination or a review engagement conducted in accordance with attestation standards established by the AICPA, the objective of which would be the expression of an opinion or conclusion, respectively, on the Data File. Accordingly, we do not express such an opinion or conclusion, or any other form of assurance, including reasonable assurance. Had we performed additional procedures, other matters might have come to our attention that would have been reported to you.

We are required to be independent of the Company 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 procedure engagements are less restrictive than independence requirements for audit and other attestation services.

None of the engagement, procedures or report was intended to address, nor did they address, the (i) conformity of the origination of the assets to stated underwriting or credit extension guidelines, standards, criteria or other requirements, (ii) value of collateral securing such assets or (iii) compliance of the originator of the assets with federal, state, and local laws and regulations.

None of the engagement, procedures or report were intended to satisfy, nor did they satisfy, any criteria for due diligence published by a nationally recognized statistical rating organization.

This report is intended solely for the use and information of the Specified Parties and is not intended to be and should not be used by anyone other than the Specified Parties.

Yours truly,

/s/ Deloitte & Touche LLP

July 28, 2026

Appendix A

Source Documents

For purposes of performing the agreed-upon procedures described herein and at your request, we will rely upon the following source documents as provided to us by the Company, with respect to the Mortgage Asset (the “Source Documents”):

Draft loan agreement and draft replacement, amended and restated promissory note (collectively, the “Loan Agreement”);

Draft schedule of allocated loan amount and appraisal value (the “ALA”);

Draft guaranty (the “Guaranty”);

Draft proforma title policy (the “Title”);

Real estate property appraisal report (the “Appraisal Report”);

Property condition report (the “Engineering Report”);

Phase I environmental report (the “Phase I Report”);

Seismic risk report (the “Seismic Report”);

Draft CRE insurance risk analysis (the “Insurance Risk Analysis”);

Draft non-consolidation opinion (the “Non-Consolidation Opinion”);

Underwritten rent roll (the “Underwritten Rent Roll”); and

Underwritten financial summary (the “Underwritten Financial Summary Report”).

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Calculation Procedures

With respect to Characteristic 16, we recomputed the Mortgage Loan Per Unit by dividing the (i) Mortgage Loan Cut-off Date Balance by (ii) Total Property Units.

With respect to Characteristic 17, we recomputed the Total Debt Per Unit by dividing the (i) Total Debt Cut-off Date Balance by (ii) Total Property Units.

With respect to Characteristic 19, we recomputed the Mortgage Loan Cut-off Date Balance as being equal to the Mortgage Loan Original Balance.

With respect to Characteristic 25, we recomputed the Total Debt Cut-off Date Balance as being equal to the Total Debt Original Balance.

With respect to Characteristic 31, we recomputed the Mortgage Loan Monthly IO Payment by dividing (i) the product of (a) the Mortgage Loan Cut-off Date Balance, (b) the Mortgage Loan Interest Rate and (c) a fraction equal to 365/360 by (ii) twelve.

With respect to Characteristic 32, we recomputed the Mortgage Loan Annual IO Debt Service as the product of (a) the Mortgage Loan Cut-off Date Balance, (b) the Mortgage Loan Interest Rate and (c) a fraction equal to 365/360.

With respect to Characteristic 40, we recomputed the Total Debt Monthly IO Payment by dividing (i) the product of (a) the Total Debt Cut-off Date Balance, (b) the Total Debt Interest Rate and (c) a fraction equal to 365/360 by (ii) twelve.

With respect to Characteristic 41, we recomputed the Total Debt Annual IO Debt Service as the product of (a) the Total Debt Cut-off Date Balance, (b) the Total Debt Interest Rate and (c) a fraction equal to 365/360.

With respect to Characteristic 60, we recomputed the IO Term (mos) as being equal to the Original Loan Term (mos).

With respect to Characteristic 65, we recomputed the Mortgage Loan Interest Rate as the sum of the (a) Mortgage Loan SOFR Assumption and (b) Mortgage Loan Spread.

With respect to Characteristic 67, we recomputed the Net Interest Rate as the difference of the (a) Mortgage Loan Interest Rate and (b) Administrative Fee Rate.

With respect to Characteristic 69, we recomputed the Original Loan Term (mos) by determining the number of payment dates from and inclusive of the First Payment Date to and inclusive of the Maturity Date.

With respect to Characteristic 70, we recomputed the Remaining Loan Term (mos) as the difference of the (a) Original Loan Term (mos) and (b) Seasoning.

With respect to Characteristic 71, we recomputed the Seasoning by determining the number of payment dates from and inclusive of the First Payment Date to and inclusive of August 1, 2026 (the “Cut-off Date” as stipulated by representatives of the Company).

With respect to Characteristic 76, we recomputed the Mortgage Loan Balloon Balance as being equal to the Mortgage Loan Original Balance.

With respect to Characteristic 79, we recomputed the Total Debt Balloon Balance as being equal to the Total Debt Original Balance.

With respect to Characteristic 88, we recomputed the Cut-off Date Mortgage Loan LTV by dividing the (i) Mortgage Loan Cut-off Date Balance by (ii) Appraisal Value.

With respect to Characteristic 89, we recomputed the Maturity Date Mortgage Loan LTV by dividing the (i) Mortgage Loan Balloon Balance by (ii) Appraisal Value.

With respect to Characteristic 90, we recomputed the Cut-off Date Total Debt LTV by dividing the (i) Total Debt Cut-off Date Balance by (ii) Appraisal Value.

With respect to Characteristic 91, we recomputed the Maturity Date Total Debt LTV by dividing the (i) Total Debt Balloon Balance by (ii) Appraisal Value.

With respect to Characteristic 105, we recomputed the Underwritten Mortgage Loan IO NOI DSCR by dividing the (i) Underwritten NOI by (ii) Mortgage Loan Annual IO Debt Service.

With respect to Characteristic 107, we recomputed the Underwritten Total Debt IO NOI DSCR by dividing the (i) Underwritten NOI by (ii) Total Debt Annual IO Debt Service.

With respect to Characteristic 109, we recomputed the Underwritten Mortgage Loan NOI Debt Yield by dividing the (i) Underwritten NOI by (ii) Mortgage Loan Cut-off Date Balance.

With respect to Characteristic 110, we recomputed the Underwritten Total Debt NOI Debt Yield by dividing the (i) Underwritten NOI by (ii) Total Debt Cut-off Date Balance.

With respect to Characteristic 114, we recomputed the Underwritten Mortgage Loan IO NCF DSCR by dividing the (i) Underwritten NCF by (ii) Mortgage Loan Annual IO Debt Service.

With respect to Characteristic 116, we recomputed the Underwritten Total Debt IO NCF DSCR by dividing the (i) Underwritten NCF by (ii) Total Debt Annual IO Debt Service.

With respect to Characteristic 118, we recomputed the Underwritten Mortgage Loan NCF Debt Yield by dividing the (i) Underwritten NCF by (ii) Mortgage Loan Cut-off Date Balance.

With respect to Characteristic 119, we recomputed the Underwritten Total Debt NCF Debt Yield by dividing the (i) Underwritten NCF by (ii) Total Debt Cut-off Date Balance.

With respect to Characteristic 182, we recomputed the Total Debt Interest Rate as the sum of the (a) Mortgage Loan SOFR Assumption and (b) Total Debt Spread.