And if they refuse at first, they will often accept if you offer to pay the first few months of rent in advance. Generally a job offer letter will show your new salary and that will help that you will be financially able to pay rent.We are pleased to inform you that your Application to Rent has been accepted. You can also use an official offer letter as proof of income as long as it includes your salary. I am currently accepting application ready clients who are looking to move in the next 30 days. Learn how to write a proof of income letter with our stepbystep guide and use our fillintheblanks template as an example. Utilize our Rental Application to assess and screen potential tenants before entering into a lease agreement for your rental property. 728 Likes, 239 Comments. The applicants' total gross monthly income must equal at least three times the monthly rent.