Tori is on the right track. If you had a realtor represent you then contact them and the closing attorney. The closing attorney most likely represented the bank in a foreclosure situation. You may need to get an outside attorney to perssue them.
My wife is a real estate attorney here in Georgia and also handles litigation. She could probably help you go after the bank for what they owe on the repairs. Contact me if you want to speak with her.
ERA Sunrise Realty