Is it just me that thinks that the OP (genuine or not) does not make things clearer at all?
I want to sell my house. Joe Bloggs says he’ll buy it and assures me he has the money. Solicitors are employed. It then appears that Joe doesn’t have the capital after all. What happens?
Well it’s still my house. Mr Bloggs cannot come in to sleep in the spare bedroom or re-paint the living room.
Of course I myself could choose to live somewhere else and leave the property empty until I get another buyer, but Joe Bloggs would have no say in the matter.