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.Learn how to craft a compelling home offer letter that stands out in a competitive market and resonates with sellers. Here are house offer letter samples to win a bidding war. 3 examples to use as a reference point. Consider the pros and cons of writing a house offer letter in real estate transactions. Learn when to write a letter and when to avoid one. Step 2: Purchase Price. A strong offer letter will include a bit of emotion, a touch of poetry, and a lot of detail. This article is the place to start.