Question on Separation Agreement

I am a student and am hoping to find some guidance with this assignment. Thank you! Here’s the scenario:

Jill and Sam Spade have worked for months to sell their home and purchase a new larger home in northern county. Their house closed on last Thursday at 4 p.m. They were to purchase the new home at 10 a.m. on last Friday, but the realtors failed to understand the transaction with the following consequences: The seller who signed the listing agreement was not divorced and the ex-wife has now refused to sell, even though she has previously signed a separation agreement agreeing to do so. The Spade family is now living in a former accountant’s office and is hoping not to spend long in that location. They want to know what we can do for them and how quickly this matter can be resolved.