The Times had a similar question that you might want to take a look at:
There's no tax due to the state, but it does change your basis in the co-op for tax purposes.
Whether the co-op itself is going to charge you a fee is a matter that would vary with each individual building, and you'll have to ask the board.
author, "Diary of a Real Estate Rookie"
Insider Real Estate Tips with a Twist of Humor: http://tinyurl.com/2ag28z