Your letter should have a professional and informative tone, covering exactly why you're denying their rental application. After careful consideration of your rental application, I regret to inform you that we have decided not to proceed with your application at this time.Under federal law, a landlord who denies your tenant application because of information in a tenant screening report is required to inform you of that fact. You can ask, but they don't have to answer. They also don't have to be truthful, as admitting to discrimination of any kind is admission of an illegal action. What are some common legal reasons to deny a rental application? Inform your applicants of your decision with this straightforward, federallycompliant application denial form. If your application is denied, you should receive a notification from the landlord or property manager.