Do you have to be a relative to cosign?
no.my father cosigned for me,but the bank told me that anybody could cosign..good luck to you.
Will a cosigner's credit be affected if they cosign for someone who has a bad credit score because of a Chapter 7 bankruptcy?
Never cosign a loan. While I agree that one should NOT cosign. cosigning can hurt or help. Remember that if they do not pay you have to. Cosigning will affect your credit and count towards your debt to income ratio and show as an open joint auto loan. You might be turned down to get your own auto loan without a cosigner if you cosign.