You can also use an official offer letter as proof of income as long as it includes your salary. Discover effective strategies for creating a fake job offer letter for apartments.According to MassLandlords. Net, an offer letter is a common method of verifying income. A rental cover letter is a unique way to make your rental application stand out from other potential tenants and impress the landlord. They'll likely say "ok". Learn the key elements of a successful apartment offer letter, including job details, rental history, and ways to stand out to landlords. Often, your employer will send the income verification letter directly to your potential landlord, as requested on your apartment application. If the application allows you to add a description for the income source describe the income as "Section 8 voucher from King. Learn the key elements of a successful apartment offer letter, including job details, rental history, and ways to stand out to landlords.