Do you plan to represent yourself? It CAN be a complicated process - RULES GOVERNING THE COURTS OF THE STATE OF NEW JERSEY (http://www.judiciary.state.nj.us/rules/r4-62.htm)

If you mean "how much does a lawyer cost", it depends on a lot of things. Ask several. They can charge whatever they want to charge. They shouldn't charge you for asking and usually for a brief consultation.

And how complicated is the case. Is is simple, or will they have to do hours and hours of research.