A seller may choose to deliver the goods and later invoice the buyer for payment. Create a custom invoice. Another issue that can derail a real estate deal is the title. Even a buyer who acts in good faith may be wrong to think that he owns the property and can sell it. A good real estate contract should look at what happens if it turns out that the title is tarnished and the transaction cannot be carried out. Each business sales contract differs in details. But there are standard parts that will contain almost all agreements. The agreement details the specific assets transferred. Physical assets can include real estate, vehicles, inventories, furniture, furniture, machinery and equipment. .