"It’s gonna have a big impact on a small set of sellers who are already in distress, and I think it just sets a very bad precedent,” said Matt Cosentino, who leads multifamily sales at Brooklyn-based brokerage TerraCRG. Cosentino and others worry that even a narrower version of COPA could make already challenging sales harder to execute, by making it trickier to line up financing and get title insurance.