BANK 2017-BNK4 Announces Change of Special Servicer to C‑IV AM

What Happened

• BANK 2017-BNK4 filed an 8-K (Item 6.02) announcing that C‑IV Asset Management LLC (“C‑IV AM”) will act as special servicer for The Davenport Mortgage Loan under the WFCM 2017‑RB1 pooling and servicing agreement. The change follows Greystone Servicing Company LLC’s sale of substantially all assets of its special servicing division to C‑IV AM, which closed on September 1, 2026. C‑IV AM assumed duties, responsibilities and liabilities for special servicing arising after the closing.

Key Details

• Sale/transfer date: September 1, 2026; Greystone transferred substantially all special servicing assets to C‑IV AM (two CLOs excluded).
• Greystone portfolio (as of June 30, 2026): ~60 transactions, ~1,928 first‑lien loans, aggregate stated principal ≈ $20.7 billion.
• C‑IV AM credentials and size: rated “MOR CS2” (Morningstar DBRS) and “CSS2” (Fitch); on S&P’s Select Servicer list (“Average; Ranking Watch Positive”); since 2002 has resolved/participated in ~6,017 assets totalling ≈ $60.7 billion. Actively specially serviced assets as of 6/30/2026: ≈108 assets, ≈ $2.1 billion principal.
• Operational continuity: substantially all key Greystone special servicing employees moved to C‑IV AM and will perform essentially the same roles; C‑IV AM expects no material change to policies, and says it has not had servicer defaults in prior CMBS/multifamily engagements.

Why It Matters

• For certificateholders and investors in this securitization, the special servicer handles workouts, restructurings and enforcement on troubled loans—so a change can affect how problem loans are managed and the timing of recoveries.
• The filing emphasizes continuity: experienced staff moved to C‑IV AM and the firm has established ratings and a large prior portfolio, which may reduce operational disruption risk.
• There is no indication in the filing of legal or financial issues at C‑IV AM that would impair its ability to service loans, and C‑IV AM does not expect its financial condition to materially affect pool or certificate performance.