Download our free rental application denial letter to use for your rental business. Find your next tenant with Avail tenant screening.Comprehensive guide on how to send a rental application denial letter. Download a customizable rental application rejection letter template for landlords or property managers to professionally notify applicants. If you know this in advance, once again it is best to write a letter explaining this to the new landlord rather than trying to dig out of a hole after the fact. In this article, we'll talk you through what's included in a rental application denial letter and even give you a free template to use. Below we outline some of the common reasons why a rental application may be denied, and how you can fix them. The form you need to respond to an eviction case is Answer - Unlawful Detainer-Eviction (form UD-105).