Here are house offer letter samples to win a bidding war. 3 examples to use as a reference point.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. When we sold our home we had multiple offers, and some included letters. Follow our tips on crafting customized house offer letters that accurately reflect your client's enthusiasm and financial readiness to purchase the property. Learn how to write a house offer letter that will be sure to make you stand out from the competition. These forms will be useful when filing required documents related to estates of deceased or incapacitated persons. Sample House Offer Letter. So, yes, I think the taxes should go up partially," he said. "But not that outrageous amount.