Can I sue the bank for closing joint account? My.husband lied told the loan officer we were divorced did not produce any documents to validate clai

You would have a claim if the bank acted negligently in closing the account when it should not have.  However, absent a court order or a contrary provision in the account agreements, I know of no law (although I am not a Texas lawyer) that prohibits one owner from closing a joint account, divorced or not.  Your husband may have done something wrong, but I'm not sure that the bank has.