I'm not sure about NJ's specific paperwork, but I always recommend people check with NOLO when starting a business. They have some outstanding resources. Here's an article that may be useful:
http://www.nolo.com/article.cfm/obje...1/182/245/ART/
You can also contact someone for free advice from your local SCORE chapter (
www.score.org), and they might be able to tell you where to find the paperwork.
Jenn