Talk to the health department for their requirements. Then talk to the City where you will have your business address, you likely still need a business license. I don't know N.J. but, here in Cali, you needs a business license from the City, an inspection certificate from the County Health, and Safe-serv certification, or equal, for food handlers.
I'm feeling bearish, and I'm packing a Wusthof Grand Brisket slicer from MABA
"perhaps...but then again...maybe not..."