Chapter 7 bankruptcy does not erase all debts. Those that cannot be erased include child support and alimony, student loans and debts incurred as the result of fraud. If you've defrauded someone and a judgment has been made against you, that won't be erased.
Here is a great summary on NJ chapter 7 (which is more appropriate in your case than chapter 13): http://www.njlawnet.com/njlawreview/bankruptcy-faq.html
Attorney
Negotiate, Draft, and Review many complex commercial agreements each year.