At the New Jersey State Archives the following statewide vital records can be searched:

Births 1848-1923
Deaths 1848-1964
Marriages 1848-1950

Single year searches can be performed for a flat fee of $15.00 each which includes one copy of the document if found.  The turnaround time for these requests is generally two to three weeks.  More extensive searches can be performed for my hourly fee.  Please email me specific details so that I can give you an estimate of the time needed to complete your searches.