My son has lived in student living with 3 other chosen roommates that he didn't know very well but the other 3 were good friends. They each have their own bedroom and bathroom that is keyed. They have a common area and the apartment was furnished and new. There were many things damaged over the year from various parties that they all had. we are now finding out that they are going to be billing me as a cosigner for the full damages to the apartment. Each person signed their own lease agreement. they state that because two of the roommates blame ALL damages that my son reported to maintenance on my son that he is responsible. wouldn't this be conceived as heresay. my son has witnesses stating that his roommates caused damage. do we have any recourse since it does not state in the lease any information about damages other than the resident will be responsible and they are all residents? HELP!!