Investor Presentaiton

Disclaimer Notice to all Investors: This presentation (the "Presentation") is not an offer to sell any Freddie Mac securities. Offers for any given security are made only through applicable offering circulars, private placement memoranda and related supplements, which incorporate Freddie Mac's Annual Report on Form 10-K for the year ended December 31, 2022, filed with the SEC on February 22, 2023, and all other reports or documents that Freddie Mac files with the SEC pursuant to Sections 13(a), 13(c) or 14 of the Exchange Act, excluding any information "furnished" to the SEC on Form 8-K. Content in this Presentation is not reflective of current market/spreads and is not indicative of any future Freddie Mac offerings. Please use this Presentation for informational purposes only. The information contained in this Presentation (the "Information") has been provided by one of BofA Securities, LLC ("BofA Securities"), Citigroup Global Markets Inc. ("Citigroup"), Nomura Securities International, Inc. ("Nomura") and R. Seelaus & Co., LLC ("Seelaus") each a "Dealer" and collectively, the "Dealers") and is preliminary and subject to change. The Information does not include all of the information relating to the Mortgage Loan population for this transaction (the "Mortgage Pool"), or the securities to be issued and collateralized by such Mortgage Loans (the "Certificates"). As such, the Information may not reflect the impact of all structural characteristics of the securities. The assumptions underlying the Information, including structure and the composition of the Mortgage Pool, may be modified from time to time to reflect changed circumstances. This document may be amended, superseded or replaced by subsequent term sheets, "roadshow" materials and/or updated pool information and will be superseded by the applicable offering circular (the "Offering Circular") or private placement memorandum (the "Private Placement Memorandum") in all respects, which will describe the final terms and conditions of the securities. Any offering of securities will occur only in accordance with the terms and conditions set forth in the Offering Circular or Private Placement Memorandum. In the event of any inconsistency between the information included in this Presentation and the Offering Circular and/or the Private Placement Memorandum, the Offering Circular and/or Private Placement Memorandum shall be deemed to supersede this Presentation. Prospective purchasers are recommended to review the final Offering Circular or final Private Placement Memorandum, as applicable, relating to the securities discussed in this communication. The final Offering Circular or final Private Placement Memorandum will contain data that is current as of its publication date and after publication may no longer be complete or current. A final Offering Circular or final Private Placement Memorandum may be obtained from the joint bookrunner BofA Securities by calling 800-294-1322. The Information is preliminary and subject to final structural, accounting and legal review as well as final changes to the composition of the underlying mortgage loans. The analyses, calculations and valuations herein are based on certain assumptions and data provided by third parties that may vary from the actual characteristics of the underlying mortgage loans relating to the Certificates. Neither the Dealers nor Freddie Mac have verified these analyses, calculations or valuations. Material contained within the Information may also be based on assumptions regarding market conditions and other matters as reflected herein, and such assumptions may not coincide with actual market conditions or events. Neither the Dealers nor Freddie Mac have undertaken to update or amend the Information since the date it was issued. More current information may be available publicly from other sources. The Certificates are being offered when, as and if issued. In particular, you are advised that these Certificates, and the underlying mortgage loans, are subject to modification or revision (including, among other things, the possibility that one or more classes of Certificates may be split, combined or eliminated), at any time prior to issuance or availability of the final Offering Circular or Private Placement Memorandum. Any decision to invest in the Certificates described herein should be made after reviewing the final Offering Circular or Private Placement Memorandum, conducting such investigations as the investor deems necessary and consulting the investor's own legal, accounting and tax advisors in order to make an independent determination of the suitability and consequences of an investment in the Certificates. 2 CONFIDENTIAL SLST 2023-1 Prepared by Investments and Capital © Freddie Mac Markets

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