This is really on your Agent:
He has two avenues that he can pursue:
He should have already consulted with his Broker; I'm assuming that he hasn't.
He could also talk to the CAR Legal Hot Line: He should know that too.
You could also have your Attorney draft a "letter"; everyone hates to get a "letter" from an Attorney: This may cost a couple hundred, but probably worth it.
What is the wording on your PURCHASE AGREEMENT concerning remedies and solutions?