Here are house offer letter samples to win a bidding war. 3 examples to use as a reference point.ETA, in case you need a good sample, this is the letter we used for one of our offers. 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. Forms. Applicable Laws and Information. You may find this information and these forms helpful when handling the estate of a deceased person. Learn how to write a house offer letter that will be sure to make you stand out from the competition. Some buyers may feel they need to write a "love letter" to the seller to explain why they are the right buyer. This can lead to some issues. These forms should be downloaded and completed on your device and printed.