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. Ready to put a bid on your new property?Download FortuneBuilders' free real estate offer letter template so your proposal stands out. Discover an impactful sample letter of an offer to buy property. Show sellers your genuine interest and secure a dream property. Here are house offer letter samples to win a bidding war. 3 examples to use as a reference point. When making an offer, include specifics like purchase price, basic terms of financing, and other contingencies. Here are some tips for writing a letter of interest for a house: Make your opener as personal as possible. We've created a free sample letter you can use (no email optin required) to notify your tenants on your intent to sell the property.