Stephen began his career as an Assistant District Attorney in New Orleans, Louisiana, eventually becoming the Division Chief supervising approximately 30 attorneys. He also served as the homicide and sex crimes trial prosecutor.
In 1985 he was admitted to the bar in New Jersey and the U.S District Court for the District of New Jersey. Upon moving to New Jersey he joined Methfessel & Werbel, where he served as an insurance defense trial attorney specializing in fraud, defamation defense, property damage, subrogation, coverage and negligence actions. In 1989 he was admitted to practice before the U.S. Court of Appeals for the Third Circuit.
Stephen left M&W in 1989 to form the law firm of Maloney and Katzman, which then became the Law Office of Stephen R. Katzman, where he handled over 1500 property damage, fraud, fire, coverage, defamation defense, subrogation, products liability and bodily injury files over a period of 13 years. He rejoined M&W in 2002 as a member of the first-party/property team. He and his team specialize in insurance fraud, defamation defense and insurance coverage matters.