Generally a job offer letter will show your new salary and that will help that you will be financially able to pay rent. Yep, as long as it states start date and salary you're good.I'm a leasing agent and do this all the time. You can also use an official offer letter as proof of income as long as it includes your salary. What documents will a Landlord need to provide to complete the GRA Landlord Application? You should also have the tenant upload a W2, pay stub, or offer letter in your rental application. Bring along at least two pay stubs to show your income stability. You should also look back through your apartment application. 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. Dear (Name of landlord or property manager),.