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. Any false information found is an immediate denial of application or lease (if lease has been signed). 1. Lead Safe Salt Lake Rental Property Application Form-LSSL-2.0. 2. After 7 days of living there I had to immediately move out of state and back home.