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. We have a stepbystep guide with some tips from the professionals on how to buy a house without an agent.It's free to see how much you can save. 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. An agreement to sell real estate, or a purchase agreement, is a legally enforceable document that specifies the terms of a real estate transaction. The most common way to sell your house without a realtor is to list your home FSBO and sell it on your own. Here's how to do it. 1) Why is the seller selling the house? Snag our free home offer letter templates, learn what to include and avoid in your letter, and get the inside scoop on how to deliver it to sellers.