I'm confused as to why you are being sued in NJ. Nevertheless, the Statute of Limitations for a debt like this should only be 4 years based on the limitations contained in the Uniform Commercial Code for the sale of goods. NJ case law supports this. As such, you may have a complete defense to the lawsuit and also a claim under the Fair Debt Collection Practices Act. You may find my website helpful: www.njconsumerfraudlawyers.com.