1. Hlne signed a promise to buy an office building, and gave the owner a deposit of $10,000. The deeds were to be signed at the notary's office in two weeks. Two days before the signing, the owner called to tell Hlne that she had changed her mind and was no longer interested in selling the building. She said she would return the $10,000 the next day. Hlne is quite angry and wants to know if she can force the sale to be completed. Is there anything in the law that might help her?