What Do You Need to Make an Offer on a House? 1) Why is the seller selling the house?Today we are going to talk about how to fill out a trek one to four offer. Your offer's sale price is the most important figure in the letter. Research comparable homes in the area to ensure your price is competitive. To help you figure it all out with minimal hassle, this 3minute guide to offer letters shares insightful answers and info for homebuyers. Let's walk you through how to review and present a real estate purchase contract as a listing agent. Are you wondering what to write in your offer letters to landowners?