Download a customizable rental application rejection letter template for landlords or property managers to professionally notify applicants. You should always act fairly, professionally, and compliantly when rejecting rental applications.Check out our guide below for the best practices. 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. I never deny anyone. I tell them what must change so I can approve them. We discuss everything you need to know about turning down applicants and provide a template for your convenience. Cuyahoga County Rental Registration Appeal Form. This form requires manual completion. In this post, we go through how to deny an applicant based on suspect information on their tenant screening report.