Contract termination due to medical issues

[Kevin Reid]

So long story short I have a friend in Florida that is selling his house. They signed the contract for it 4 days ago, but yesterday his wife was put on bed rest for the next few months. So they will not be able to move. The buyers did not put down any money yet, and they have not paid for inspections or anything. They offered to move the closing back to October 1st, but they refused, and insisted if that happens then he has to pay for a rental and storage. Doing so would eliminate any profit on the investment, and they don't have much money to do so anyway.

So I guess my questions are can he terminate the contract? Does this qualify as force majeure? Any advise?