Oh, and sdr, I’ve never had a dispute over a “screen door.” It was more like exp. pool pumps, spa heaters, roof leaks, plumbing leaks, failure to do the necessary work to obtain a termite clearance and sellers not properly disclosing defects that they HAD to have known about.
A buyer has EVERY RIGHT to walk if the seller agreed to fix or replace something and then tries to close without fixing it. Your lawyer will advise you NOT to close until the terms of the contract are performed.