It is very rare for a PA to own a practice in NYC. I once called NY Education Dept which issues MD/DO/PA licence regarding PA-owned family practice a few years ago. The answer was that the owner has to be a doctor. Maybe you need find a lawyer first to make sure if it's legal or not for PA-owned practice in NYC and then find your SP. Many years ago, there was a PA to own a practice in NYC with a very strong lawyer's help. However, that PA never gave his lawyer's name in PA forum after a few PAs asked him.