Download our free rental application denial letter to use for your rental business. Find your next tenant with Avail tenant screening.Download a customizable rental application rejection letter template for landlords or property managers to professionally notify applicants. In this article, we'll talk you through what's included in a rental application denial letter and even give you a free template to use. Your letter should have a professional and informative tone, covering exactly why you're denying their rental application. A rental application denial letter, also known as an adverse action letter, is a formal document that a landlord or property manager sends to applicants. Review the landlord resources below which provide valuable information related to rental payments, inspections, maintenance, and noticing.