Yes, if you change the terms outside of the agreement. It is the seller who is signing the RPA and then submitting to the bank. It needs all hands shaking to make it happen... Seller, Buyer and Bank. They want it to go smooth and the bank has already agreed to specific terms. Now they want it done and over. The bank can make it very difficult and they generally want a clean fast close once agreement has been made. But... that is the nature of the beast.