Download a customizable rental application rejection letter template for landlords or property managers to professionally notify applicants. Your letter should have a professional and informative tone, covering exactly why you're denying their rental application.We want to reject potential tenants with very low credit score and not so solid credit history. In this post, we go through how to deny an applicant based on suspect information on their tenant screening report. You should always act fairly, professionally, and compliantly when rejecting rental applications. Check out our guide below for the best practices. Your tenant should earn a minimum of three times the monthly rent. A rental application denial letter (also referred to as an adverse action letter) will need to be issued to the denied renter. As a landlord, you cannot give any reason for that rejection. Landlords should only deny applicants if they have evidence that the tenant would not be able to fulfill the requirements of the rental contract.