If you file, you have to list all debts, including the RV loan. Since he hasn't refinanced, you are still liable - but that liability will be eliminated by way of your bankruptcy. You should also, if you are still listed on the title, surrender your interest in the RV in your Statement of Intention. Since you asked the question, however, it appears that you are not sufficiently familiar with bankruptcy law to attempt to file on your own; and you should consult with an experienced bankruptcy attorney for assistance.
Answered on Sep 26th, 2013 at 3:54 AM