Craft a winning house offer letter with our customizable template and tips. (Joint Escrow Instructions). 1.A Nevada purchase agreement is a legal document that outlines the terms for the sale of real estate between a seller and a buyer. 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. An offer letter accompanying your purchase offer sets you apart from the sea of offers. Here's how to write an offer letter for a house. Nevada Free Letter of Intent ( LOI ) Template. Utilize our Letter of Intent to formally express your desire to buy a product or service. Once complete, the seller will sign and attach to the original purchase agreement. 3. Wait for Acceptance.