Make your opener as personal as possible. Address the Seller and Introduce Yourself.A home purchase offer chase in Montgomery County is oftern over 50 pages. Learn about the seven to ten basic business terms in every offer. It's legally non-binding. What Items Are Required to Submit an Offer? 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. Make sure the price is right. Your letter should explain why you're interested in buying the house and include details regarding your mortgage financing and expected closing date. Your letter should explain why you're interested in buying the house and include details regarding your mortgage financing and expected closing date.