In real estate, all offers must be in writing and are a traditional approach in contract law used to determine whether an agreement exists between two parties. To help you figure it all out with minimal hassle, this 3minute guide to offer letters shares insightful answers and info for homebuyers.I want to write a letter that is compelling. My realtor says he's not allowed to attach letters to offers because he can lose his license. An offer letter could include details about why you love the seller's home and why you want to live there. It's often written to tug on their heartstrings. When it's time to submit an offer, having a preapproval letter from your lender helps your agent negotiate the best deal possible. Our real estate experts have helped break down the most common areas where real estate purchase offers can go awry and what to read closely before you sign. 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. Truthfully, the selling party in a real estate transaction has no legal requirement to accept, deny or even respond to your offer.