My dad has agreed to cosign a lease with me but I am afraid my application will just be thrown out since I cannot provide a credit score or any proof of income. Cosigners will be considered in some situations.When requested, applicants can enter other co-applicants, co-signers, and guarantors they'll be applying with on their rental application. We require 3 times the monthly rent in gross income. If you have insufficient income, an additional deposit or co-signer may be required. No information is available for this page. Rentor processes cosigner applications in 3-5 business days. This guide will provide all the necessary information you need to screen, process, and add a cosigner to a lease.