BBCMS Mortgage Trust 2023-C19 Reports Servicer Change to C‑IV AM

What Happened

• BBCMS Mortgage Trust 2023-C19 filed an 8-K (Item 6.02) announcing a change of special servicer: C‑IV Asset Management LLC (“C‑IV AM”) assumed special servicing duties for the Sentinel Square II Mortgage Loan and the 575 Broadway Mortgage Loan effective September 1, 2026.
• The change followed Greystone Servicing Company LLC’s sale and conveyance of substantially all assets of its special servicing division to C‑IV AM on September 1, 2026. Substantially all key employees handling Greystone’s special servicing matters moved to C‑IV AM and continue in the same roles.

Key Details

• Effective date: September 1, 2026 (Sale Transaction and servicing transfer).
• Loans involved: Sentinel Square II Mortgage Loan and 575 Broadway Mortgage Loan.
• C‑IV AM credentials: Morningstar DBRS rating “MOR CS2,” Fitch rating “CSS2,” and listed on S&P’s Select Servicer list (ranked “Average; Ranking Watch Positive”).
• Portfolio context: As of June 30, 2026, Greystone was named special servicer on ~60 transactions (~1,928 first‑lien loans; aggregate stated principal ~$20.7B). C‑IV AM’s actively specially serviced portfolio was ~ $2.11B (as of 6/30/2026); C‑IV AM reports resolving/participating in resolution of 6,017 assets ($60.7B) since 2002.

Why It Matters

• For certificateholders and investors, the special servicer manages troubled loans and decisions that affect recoveries and cash flow. This filing documents a direct operational transfer (including staff) from Greystone to C‑IV AM, which reduces transition risk.
• C‑IV AM’s industry ratings, stated experience, and representation that there are no material outstanding legal issues or prior servicer defaults are intended to reassure investors that servicing continuity and loan resolution capabilities remain intact. The filing states C‑IV AM does not expect its financial condition to materially affect pool or certificate performance.