If a landlord denies a rental housing application, they must provide the applicant with a written notice of denial within 3 business days of the. It's polite to send a letter out to the other applicants letting them know the property is no longer available.Download a customizable rental application rejection letter template for landlords or property managers to professionally notify applicants. There are plenty of reasons to legally turn down a tenant application for your property. Learn about your rights with Harrisburg Property Management Group. Yes, absolutely you can ask. First, clearly state the reason for the appeal of the property's decision and restate their reason for denying your rental application.