- Hoffman v. 345 East 73 Street Owners Corp, et al., 186 A.D.2d (1st Dept. 1992) which was the first judicial decision prohibiting a Co-op shareholder from operating a bed and breakfast hotel out of his apartment.
- Braun et al. v. 941 Park Ave. Inc., et al., 32 A.D.3d 21 (1st Dept. 2006) which set a new standard for judicial review of house rules.
- Kelley v. 838 Greenwich Owners Corp., which held that a Co-op Board is not liable to shareholders for failing to abate a noise condition (a neighboring Rap Club) arising from outside the building.