I'm not sure what you mean when you say you "signed off the lease." If you have something in writing where the landlord agreed to take you off the lease, it sounds like you should be able to get any bad credit reporting against you corrected.If all you got was an agreement with your former room mates, they are the only ones that certainly have to answer to you.  There is an interesting legal question, whether you can be bound by the renewal of the lease (which I am assuming was originally for one year, as usual) after you left, without your knowledge or consent.  The trouble with that interesting legal question is that it could cost much more than $350 to have a court give you the answer, and you might very well lose.You might be able to persuade the landlord to let you off the hook for something less than the whole $350.To pursue this, you should think about talking to a lawyer in your area.  One place you can look for counsel is our website, http://attorneypages.com