6.15 How to fill out the Addendum for Sale of Other Property by Buyer - YouTube YouTube Start of suggested clip End of suggested clip So the first step is you would just write a 1 to 4 family contract. Just like you normally would andMoreSo the first step is you would just write a 1 to 4 family contract. Just like you normally would and then on page 7 you check the addendum for sale of other property by buyer.