An agreement between the Manufactured Home purchaser and the retailer or dealer from whom the Manufactured Home is purchased. We're going to discuss some of the key components to writing a successful contract, and some strategic suggestions to make the contract more effective.This article is for private buyers and private sellers. This document is a purchase and sale agreement for a mobile home located at an unspecified address. How to fill out the Mobile and Manufactured Home Purchase Agreement and Sales Contract? 1. Enter buyer and seller details. 2. I put an offer on a manufactured home without realizing it was manufactured until the appraisal report.