Provide a Reason Letter: Select the reason(s) for the rental application denial or include any additional reasons not covered in standard options. Your letter should have a professional and informative tone, covering exactly why you're denying their rental application.First, clearly state the reason for the appeal of the property's decision and restate their reason for denying your rental application. A tenant cannot be rejected simply because of their race, creed or colour. A tenant can be rejected for the following: poor credit; no credit. Inform your applicants of your decision with this straightforward, federallycompliant application denial form.