GS Mortgage Trust 2019-GSA1 Details Complex Servicing Landscape

TL;DR

**This CMBS trust's 10-K is a deep dive into its complex servicing structure, not financial performance, signaling operational stability but requiring investor diligence on underlying loan health.**

AI Summary

GS Mortgage Securities Trust 2019-GSA1, a securitization entity, filed its 10-K for the fiscal year ended December 31, 2025. The filing details the servicing and administration of various mortgage loans that constitute its asset pool. Key assets include the Washington Avenue Portfolio Mortgage Loan (3.0% of the asset pool), SoCal Retail Portfolio Mortgage Loan (5.8%), Grand Canal Shoppes Mortgage Loan (2.9%), Millennium Park Plaza Mortgage Loan (4.0%), USAA Office Portfolio Mortgage Loan (1.7%), New Jersey Center of Excellence Mortgage Loan (4.2%), 19100 Ridgewood Mortgage Loan (4.0%), Bushwick Avenue Portfolio Mortgage Loan (4.0%), Hilton Portfolio Mortgage Loan (3.0%), East Village Multifamily Portfolio Mortgage Loan (2.9%), and American Metro Center Mortgage Loan (1.5%). Multiple servicers and custodians are involved, including Midland Loan Services, Wells Fargo Bank, Argentic Services Company LP, LNR Partners, LLC, and Citibank, N.A., each responsible for specific loan portfolios and compliance with Regulation AB. The report primarily focuses on compliance with servicing criteria rather than financial performance metrics like revenue or net income, as is typical for a pass-through securitization entity.

Why It Matters

This 10-K provides critical transparency into the operational health and compliance of a significant commercial mortgage-backed securities (CMBS) trust. For investors, understanding the intricate web of servicers, special servicers, and custodians, and their adherence to Regulation AB, is paramount for assessing the stability and potential risks of their investments. The performance of these underlying mortgage loans, such as the 5.8% SoCal Retail Portfolio and 4.2% New Jersey Center of Excellence, directly impacts cash flows to certificate holders. The multi-party servicing structure, involving entities like Midland Loan Services and Wells Fargo, highlights the complexity inherent in CMBS, contrasting with simpler corporate structures and potentially affecting competitive dynamics in the real estate finance sector.

Risk Assessment

Risk Level: medium — The risk level is medium due to the inherent complexity of a multi-loan, multi-servicer securitization structure. While the filing indicates compliance with servicing criteria, the sheer number of parties involved (e.g., Midland Loan Services, Wells Fargo, Argentic Services Company LP, LNR Partners, LLC, Rialto Capital Advisors, LLC, K-Star Asset Management LLC, KeyBank National Association, Citibank, N.A.) and the various pooling and servicing agreements (e.g., MSC 2019-H7 Transaction, CGCMT 2019-GC41 Transaction) introduce operational and coordination risks. The performance of individual loans, such as the 5.8% SoCal Retail Portfolio Mortgage Loan or the 4.0% Millennium Park Plaza Mortgage Loan, directly impacts the trust's assets, and any deterioration in these specific assets could pose a risk.

Analyst Insight

Investors should meticulously review the performance of the specific underlying mortgage loans and the compliance reports of the various servicers mentioned. Given the complexity, a detailed analysis of the loan-level data and servicer performance is crucial to identify potential vulnerabilities in the asset pool and ensure continued cash flow stability.

Financial Highlights

total Assets

Not Disclosed

total Debt

Not Disclosed

Key Numbers

• 3.0% — Washington Avenue Portfolio Mortgage Loan (percentage of asset pool at cut-off date)
• 5.8% — SoCal Retail Portfolio Mortgage Loan (percentage of asset pool at cut-off date)
• 2.9% — Grand Canal Shoppes Mortgage Loan (percentage of asset pool at cut-off date)
• 4.0% — Millennium Park Plaza Mortgage Loan (percentage of asset pool at cut-off date)
• 1.7% — USAA Office Portfolio Mortgage Loan (percentage of asset pool at cut-off date)
• 4.2% — New Jersey Center of Excellence Mortgage Loan (percentage of asset pool at cut-off date)
• 4.0% — 19100 Ridgewood Mortgage Loan (percentage of asset pool at cut-off date)
• 4.0% — Bushwick Avenue Portfolio Mortgage Loan (percentage of asset pool at cut-off date)
• 3.0% — Hilton Portfolio Mortgage Loan (percentage of asset pool at cut-off date)
• 2.9% — East Village Multifamily Portfolio Mortgage Loan (percentage of asset pool at cut-off date)

Key Players & Entities

• GS Mortgage Securities Trust 2019-GSA1 (company) — issuing entity
• GS Mortgage Securities Corporation II (company) — depositor
• Goldman Sachs Mortgage Company (company) — sponsor
• Argentic Real Estate Finance LLC (company) — sponsor
• Starwood Mortgage Capital LLC (company) — sponsor
• Midland Loan Services (company) — master servicer and primary servicer for multiple loans
• Wells Fargo Bank, National Association (company) — certificate administrator, primary servicer, and custodian
• Argentic Services Company LP (company) — special servicer
• LNR Partners, LLC (company) — special servicer for multiple loans
• Citibank, N.A. (company) — custodian for multiple loans

FAQ

Risk Factors

• Regulation AB Servicing Compliance [medium — regulatory]: The filing emphasizes compliance with Regulation AB servicing criteria, with multiple servicers (Midland Loan Services, Wells Fargo Bank, Argentic Services Company LP, LNR Partners, LLC, Citibank, N.A., KeyBank National Association) responsible for specific loan portfolios. Assessments of compliance with servicing criteria are provided by servicers, with specific focus on Item 1122 and Item 1123. The trustee's role in providing assessments is limited in this filing.
• Concentration in Large Mortgage Loans [medium — market]: The asset pool includes several significant mortgage loans, such as the SoCal Retail Portfolio Mortgage Loan (5.8%), New Jersey Center of Excellence Mortgage Loan (4.2%), and Millennium Park Plaza Mortgage Loan (4.0%). While not excessively concentrated, the performance of these larger loans could have a material impact on the overall pool.
• Multiple Servicer Engagements [medium — operational]: The securitization involves numerous servicers and custodians, including Midland Loan Services, Wells Fargo Bank, Argentic Services Company LP, LNR Partners, LLC, and Citibank, N.A. Managing and overseeing multiple parties increases operational complexity and the potential for coordination issues.
• Pass-Through Entity Structure [low — financial]: As a pass-through securitization entity, GS Mortgage Securities Trust 2019-GSA1's financial performance is directly tied to the underlying mortgage loans. There is no revenue generation or net income at the trust level; cash flows are passed through to certificate holders.

Industry Context

The commercial mortgage-backed securities (CMBS) market is characterized by complex securitization structures and a reliance on specialized servicers to manage diverse loan portfolios. Regulatory compliance, particularly under Regulation AB, is paramount for transparency and investor protection. The industry is sensitive to economic cycles, interest rate movements, and the performance of underlying real estate sectors.

Regulatory Implications

Compliance with Regulation AB is a significant focus for this filing, requiring detailed reporting on servicing activities and assessments from various parties. Any failures in servicing compliance or reporting could lead to regulatory scrutiny and potential investor dissatisfaction.

What Investors Should Do

1. Review Servicer Compliance Reports
2. Monitor Performance of Key Loans
3. Understand the Role of Multiple Servicers

Glossary

Regulation AB

A set of rules issued by the U.S. Securities and Exchange Commission (SEC) that govern the disclosure and reporting requirements for asset-backed securities transactions, particularly focusing on the quality of the underlying assets and the servicing of those assets. (This regulation is central to the filing, dictating the required disclosures regarding the servicing of the mortgage loans and the compliance of the servicers.)

Pooling and Servicing Agreement (PSA)

A legal contract that outlines the terms and conditions under which mortgage loans are pooled together and serviced for the benefit of investors in a securitized product. (This agreement governs the relationship between the issuer, servicers, and trustees, and dictates the responsibilities for managing the mortgage loan pool.)

Cut-off Date

The specific date used to determine the assets that will be included in the securitization trust. Assets originated or acquired after this date are typically not part of the pool. (This date is used to establish the initial composition and percentage allocation of the mortgage loans within the asset pool.)

Pari Passu Loan

A loan that ranks equally with other loans in terms of priority of payment and claim on collateral. In a loan combination, pari passu loans share in the cash flows and collateral on a pro-rata basis. (Some of the mortgage loans in the pool are part of larger loan combinations where other pari passu loans are not assets of the issuing entity.)

Pass-through Securitization Entity

A type of special purpose entity (SPE) that holds assets (like mortgages) and issues securities backed by those assets. The cash flows from the assets are 'passed through' directly to the security holders, with minimal intermediation or value-add at the SPE level. (This describes the fundamental nature of GS Mortgage Securities Trust 2019-GSA1, meaning its financial reporting focuses on servicing compliance rather than its own financial performance.)

Year-Over-Year Comparison

This filing, as a 10-K for a securitization trust, primarily focuses on servicing compliance under Regulation AB rather than year-over-year financial performance metrics like revenue or net income, which are not applicable to this entity type. Therefore, a direct comparison of financial metrics to a previous filing is not feasible. The key changes would likely relate to updated servicing assessments and any shifts in the composition or performance of the underlying asset pool, which are not detailed in the provided excerpts.

Filing Documents

• gsm19gsa_10k-2025.htm (10-K) — 182KB
• gsm19gsa_31.htm (EX-31) — 15KB
• gsm19gsa_33-1.htm (EX-33.1) — 172KB
• gsm19gsa_33-2.htm (EX-33.2) — 290KB
• gsm19gsa_33-3.htm (EX-33.3) — 357KB
• gsm19gsa_33-4.htm (EX-33.4) — 703KB
• gsm19gsa_33-5.htm (EX-33.5) — 992KB
• gsm19gsa_33-6.htm (EX-33.6) — 1420KB
• gsm19gsa_33-7.htm (EX-33.7) — 3113KB
• gsm19gsa_33-18.htm (EX-33.18) — 597KB
• gsm19gsa_33-28.htm (EX-33.28) — 439KB
• gsm19gsa_33-30.htm (EX-33.30) — 17KB
• gsm19gsa_33-32.htm (EX-33.32) — 137KB
• gsm19gsa_33-40.htm (EX-33.40) — 142KB
• gsm19gsa_33-51.htm (EX-33.51) — 2773KB
• gsm19gsa_33-52.htm (EX-33.52) — 177KB
• gsm19gsa_33-61.htm (EX-33.61) — 626KB
• gsm19gsa_33-67.htm (EX-33.67) — 86KB
• gsm19gsa_34-1.htm (EX-34.1) — 9KB
• gsm19gsa_34-2.htm (EX-34.2) — 9KB
• gsm19gsa_34-3.htm (EX-34.3) — 14KB
• gsm19gsa_34-4.htm (EX-34.4) — 14KB
• gsm19gsa_34-5.htm (EX-34.5) — 693KB
• gsm19gsa_34-6.htm (EX-34.6) — 11KB
• gsm19gsa_34-7.htm (EX-34.7) — 11KB
• gsm19gsa_34-18.htm (EX-34.18) — 7KB
• gsm19gsa_34-28.htm (EX-34.28) — 9KB
• gsm19gsa_34-30.htm (EX-34.30) — 10KB
• gsm19gsa_34-32.htm (EX-34.32) — 7KB
• gsm19gsa_34-40.htm (EX-34.40) — 8KB
• gsm19gsa_34-51.htm (EX-34.51) — 10KB
• gsm19gsa_34-52.htm (EX-34.52) — 9KB
• gsm19gsa_34-61.htm (EX-34.61) — 10KB
• gsm19gsa_34-67.htm (EX-34.67) — 8KB
• gsm19gsa_35-1.htm (EX-35.1) — 337KB
• gsm19gsa_35-2.htm (EX-35.2) — 109KB
• gsm19gsa_35-3.htm (EX-35.3) — 1896KB
• gsm19gsa_35-4.htm (EX-35.4) — 2593KB
• gsm19gsa_35-21.htm (EX-35.21) — 860KB
• gsm19gsa_35-24.htm (EX-35.24) — 2224KB
• 0001888524-26-005058.txt ( ) — 21096KB

financial statements. o

financial statements. o Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant's executive officers during the relevant recovery period pursuant to 240.10D-1(b). o Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). o Yes No common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter. Not applicable. Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court. o Yes o No Not applicable. Indicate the number of shares outstanding of each of the registrant's classes of common stock, as of the latest practicable date. Not applicable. DOCUMENTS INCORPORATED BY REFERENCE List hereunder the following documents if incorporated by reference and the Part of the Form 10-K (e.g., Part I, Part II, etc.) into which the document is incorporated: (1) Any annual report to security holders; (2) Any proxy or information statement; and (3) Any prospectus filed pursuant to Rule 424(b) or (c) under the Securities Act of 1933. The listed documents should be clearly described for identification purposes (e.g., annual report to security holders for fiscal year ended December 24, 1980). Not applicable. EXPLANATORY NOTES The Washington Avenue Portfolio Mortgage Loan, which constituted approximately 3.0% of the asset pool of the issuing entity as of its cut-off date, is an asset of the issuing entity and is part of a loan combination that include

of Regulation AB of Rialto Capital Advisors, LLC because Rialto

Item 1123 of Regulation AB of Rialto Capital Advisors, LLC because Rialto Capital Advisors, LLC is an unaffiliated servicer servicing less than 10% of pool assets. Citibank, N.A. is the custodian of the Millennium Park Plaza Mortgage Loan, the Bushwick Avenue Portfolio Mortgage Loan, the Hilton Portfolio Mortgage Loan and the USAA Office Portfolio Mortgage Loan. As a result, Citibank, N.A. is a servicing function participant in the capacities described above, because it is servicing mortgage loans that constituted 5% or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria and accountants' attestation reports delivered by Citibank, N.A. in the capacities described above are listed in the Exhibit Index, and exclude the servicing criteria set forth in Items 1122(d)(4)(i) and 1122(d)(4)(ii) of Regulation AB, relating to the maintenance of collateral or security on pool assets as required by the pooling and servicing agreement for the CGCMT 2019-GC41 Transaction and the pooling and servicing agreement for the CF 2019-CF2 Transaction and the safeguarding of pool assets and related documents as required by the pooling and servicing agreement for the CGCMT 2019-GC41 Transaction and the pooling and servicing agreement for the CF 2019-CF2 Transaction, which servicing criteria have been assessed by U.S. Bank National Association, as a servicing function participant, as described below in these Explanatory Notes. K-Star Asset Management LLC is the special servicer of the New Jersey Center of Excellence Mortgage Loan and the 19100 Ridgewood Mortgage Loan. These mortgage loans constitute more than 5%, but less than 10%, of the pool assets of the issuing entity. Therefore, the Depositor included in this Annual Report on Form 10-K an assessment of compliance with applicable servicing criteria for K-Star Asset Management LLC and an accountants' attestation report pursuant to Item 1122 of Regulation AB

of Regulation AB of K-Star Asset Management LLC because K-Star Asset

Item 1123 of Regulation AB of K-Star Asset Management LLC because K-Star Asset Management LLC is an unaffiliated servicer servicing less than 10% of pool assets. KeyBank National Association is the primary servicer of the Hilton Portfolio Mortgage Loan and the Bushwick Avenue Portfolio Mortgage Loan. These mortgage loans constitute more than 5%, but less than 10%, of the pool assets of the issuing entity. Therefore, the Depositor included in this Annual Report on Form 10-K an assessment of compliance with applicable servicing criteria for KeyBank National Association and an accountants' attestation report pursuant to Item 1122 of Regulation AB because KeyBank National Association is servicing more than 5% of the pool assets. However, the Depositor is not required to include in this Annual Report on Form 10-K a servicer compliance statement pursuant to Item 1123 of Regulation AB of KeyBank National Association because KeyBank National Association is an unaffiliated servicer servicing less than 10% of pool assets. Wells Fargo Bank, National Association acts as trustee of the Washington Avenue Portfolio Mortgage Loan, the SoCal Retail Portfolio Mortgage Loan, the Grand Canal Shoppes Mortgage Loan, the New Jersey Center of Excellence Mortgage Loan and the 19100 Ridgewood Mortgage Loan. Pursuant to the Pooling and Servicing Agreement, the pooling and servicing agreement for the MSC 2019-H7 Transaction and the pooling and servicing agreement for the GSMS 2019-GC42 Transaction, the trustee is required to provide an assessment of compliance with applicable servicing criteria solely with respect to Item 1122(d)(2)(iii) of Regulation AB (regarding advances of funds or guarantees regarding collections, cash flows or distributions, and any interest or other fees charged for such advances, are made, reviewed and approved as specified in the transaction agreements). However, during the reporting period, the trustee did not perform any servicing function with respect to the s

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