At the William E. Mandry P.C. Law Offices, we represent clients throughout the New Jersey communities of Phillipsburg, Belvidere, Newton, Morristown, Flemington, Trenton and Hackensack. We also provide legal services to New Jersey counties including: Warren County, Sussex County, Morris County, Hunterdon County and Mercer County. I-80, I-78 Applications for Civil Trial Attorney Certification.