We have a stepbystep guide with some tips from the professionals on how to buy a house without an agent. When writing a house offer letter, focus on what you love about the home.How Do You Write an Offer Letter for a House Without a Realtor? You don't need a Realtor to sell your home in Florida, but they provide valuable expertise that could save you time and money. Seems like the first thing you need to do is agree on the price, then you can draft a Purchase and Sale agreement. This guide will walk you through the paperwork for selling a house without a Realtor and various other steps that can give you a leg up. Do you know how to write an offer letter for a house? We're here to teach you the ins and outs to improve your chance of closing a deal. Focus on three things: State your intentions, show that you have the financial means to make the purchase and make a personal appeal to the seller. I'd like to hear comments on how to make my offer more attractive.