Yep, as long as it states start date and salary you're good. I'm a leasing agent and do this all the time.Generally a job offer letter will show your new salary and that will help that you will be financially able to pay rent. You can also use an official offer letter as proof of income as long as it includes your salary. Mention your name, the type of job you do, and why you're interested in the apartment. In California, you'll need to fill out a form that covers your rental and employment history, income details, and references. Craft a professional and effective employment agreement with our attorney-drafted template. Create and download a letter for free! A new hire letter is evidence that you have an income moving forward, which is when you will be living in the landlord's property. Learn how to fill out a rental application, what information is required, and what you will need to provide to secure your next place.