What does the contract say, exactly, about this situation? Time is not of the essence in most contracts, so seller who sells to another buyer usually has a problem with breach, in the absence of notice or some provision in the contract. You should get you deposit back and tell seller you won't sue him/her for the return of the deposit. Key issue is what is reasonable under the circumstances, and you and seller disagree on what that is.
Answered on Sep 23rd, 2013 at 3:25 PM