This article looks at Texas State laws and provides you an overview of how you can reject an application for a residential lease. If you email or write a letter, keep it clear, concise, and professional.Don't complain or criticize the landlord's decision. You can always provide a letter of explanation to explain any negative rental issues, bad credit, or criminal history. 7. You tell them the ABSOLUTE MINIMUM. Something like, you didn't pass our credit score requirements. The best time to send an appeal letter is within a week from receiving the denial letter. Once you've let your future tenant know they've been accepted, you also need to reach out to those who were rejected. A rental application denial letter, also known as an adverse action letter, is a formal document that a landlord or property manager sends to applicants. Sec. 92.002. APPLICATION. This chapter applies only to the relationship between landlords and tenants of residential rental property.