If it’s not widespread, the co-op board could argue that it’s an issue with a shower head or faucet, which could be your responsibility, said Debra J. Guzov, a real estate lawyer in Manhattan.

Readers often ask why anyone would buy a co-op unit when boards are so controlling. Here are a few reasons. By Jill Terreri Ramos Q: Every query I read about co-ops in your Ask Real Estate column ...