This is avery sticky issue.
Find out through your agent which banks have the building approved and go with that bank.
My wife are experiencing this now with one of our co-ops.
This is why it is so important ti be represented by a realtor who knows the co-op/condo market and the buildings in question. Also, agents that have relationship with various banks are also very helpful as well.
The Middleman Team, KELLER WILLIAMS. (917)488-3605