Also if you need to sell, I would be okay with breaking even on the property for a quick sale, however I would exercise every other option prior to going that route. 

and am toyingwith a thought exercise.

If they exercise the option that goes toward the price of the building and if they do not exercise it you get to keep it. 

The commission shall adopt rules requiring an employing broker to ensure that a high level of supervision is exercised over such a broker during the two-year period."

Obv, you would want to approach this deal with your daughter in the same way.In a lease option, you hold the option payment (essentially, her down payment) and credit it to the purchase price when she eventually exercises her option. 

This demonstrates that you have exercised due diligence to protect your guests in a professional manner. 

Even as an exercise it felt good to analyze a deal!

Many people are so entrenched in their ideology that you're not going to change their mind and it's an exercise in futility to argue with them.

Sounds to me like both the seller and their realtor exercised poor judgement by signing a contract with a breach clause, rather than inserting terms in the purchase agreement that would allow them to continue to accept offers and for the buyer to be allowed the option to match or exceed any higher offers.At any rate, sounds like @Tom Gimer has some solid advice.

Florida's financing extension is in paragraph 5: EXTENSION OF CLOSING DATE:(a) If Paragraph 8(b) is checked and Closing funds from Buyer's lender(s) are not available on Closing Date dueto Consumer Financial Protection Bureau Closing Disclosure delivery requirements ("CFPB Requirements"),then Closing Date shall be extended for such period necessary to satisfy CFPB Requirements, provided suchperiod shall not exceed 10 daysAlso, if the financing period passes and the buyer's don't opt out, this would apply: v) If Buyer is unable to obtain Loan Approval after the exercise of diligent effort, then at any time prior toexpiration of the Loan Approval Period, Buyer may provide written notice to Seller stating that Buyer has beenunable to obtain Loan Approval and has elected to either:107 (1) waive Loan Approval, in which event this Contract will continue as if Loan Approval had been obtained; or108 (2) terminate this Contract.