Our page offers valuable insights and advice on cosigning for apartments, including tips for protecting your credit and navigating potential pitfalls. 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.Learn the essential steps on how to add a cosigner to a lease to strengthen your rental agreement. A cosigner for an apartment takes on the financial responsibility for a lease. Learn how having a cosigner can help someone get approved for an apartment. Adding a cosigner is pretty straightforward with these steps: Do your research: Treat the apartment cosigner as an additional tenant. This guide will provide all the necessary information you need to screen, process, and add a cosigner to a lease. Co-Signers can not be in an active bankruptcy and will be required to sign the lease within 48 business hours of approval. Cosigning for anyone, even your own child, is a very, very bad idea. Adding a cosigner to your standard lease agreement isn't difficult.