Here are house offer letter samples to win a bidding war. 3 examples to use as a reference point.To help you figure it all out with minimal hassle, this 3minute guide to offer letters shares insightful answers and info for homebuyers. Ready to put a bid on your new property? Download FortuneBuilders' free real estate offer letter template so your proposal stands out. Your letter should explain why you're interested in buying the house and include details regarding your mortgage financing and expected closing date. An Offer to Purchase Real Estate sets out the terms of a proposed real estate deal. Create yours now with our free form. Learn how to craft a compelling home offer letter that stands out in a competitive market and resonates with sellers. Do you know how to write an offer letter for a house?