Being in the business, I can say that you must read the purchase agreement. There is usually, and any byuer who relies on lenders these days, needs and has a mortgage clause, an out if you will. unless you have proof that this contingency was removed you have no recourse against anyone, not even to take the earnest money. Hiring an atty is a futile waste of time and resources. What you do now is either try to sell again or move back. Personally I would never move and take on new payments until I have the cash in hand. I have seen to many deals flip, for so many reasons its sad, many lenders today will say one thing but can't be held accountable. I have many slimey stories I could share. Good luck!