("Purchase Price"). 21. 4. The buyer purchasing the property and assuming the existing mortgage.Send an actual offer instead of an email. Option contracts offer buyers a chance to put a property "on hold" until they're ready to complete the purchase. This FSBO paperwork is needed as soon as you accept an offer, so it's useful to have a purchase agreement onhand that you can fill out quickly. The buyer's agent will fill out the appropriate field depending on how their client is able to pay. In reality, selling a home involves many moving parts some that you can control, and some that are out of your hands. A home sale contingency is one type of clause frequently included in a real estate sales contract or an offer to purchase real estate.