I do not know the local law in your area (disclaimer).
Normally in the purchase of a property the terms are in favor of the buyer. There are contingencies such as loan approval, loan qualification, property appraisal, Natural Hazard disclosure, etc. During that time frame that status of the home is still "Active". In our MLS we use the phrase "Back Up Offers". We have an accepted offer, but the buyer has not yet removed their contigencies and they might back out.
As long as the buyer backs out before the contingency period expires, generally there is no penalty. In my view the penalty phase occurs when you take your home off the market because you are in escrow (meaning the contingencies have been removed). So the status shifts to PENDING, most Realtors will not show a PENDING home because the understanding with Realtors is that the home will in fact "sell".
In that case I think you could prove damages. Normally once the contingencies are removed, only an unusual circumstance can derail an escrow. ..a bad inspection report, buyer loses his job and no longer qualified for the loan, something like that.
I hope this is helpful.