About Dennis M.
Dennis M. Janssen trained as a lawyer in the 1970s and took his law degree at Widener University Delaware School of Law. He earned his J.D. in 1975 after beginning his studies in 1972. Those formative years set the stage for a long career in private practice.
After law school he moved into private practice. Over the years he has worked at the firm that bears his name, Dennis M. Janssen, P.A. He built a practice that serves individual and business clients and handled a wide range of matters typical of a general civil practice. Colleagues and clients have known him as a steady presence in the office and in court.
His career has been steady rather than flashy. There are no publicized academic appointments or bar leadership posts attached to his name in the material supplied here. Instead, his work has been the everyday work of a lawyer: advising clients, preparing documents, and appearing in court when necessary. That kind of legal work rarely attracts headlines, but it keeps the wheels of the local legal system turning.
People who have worked with him describe a lawyer who approaches cases methodically. He writes plainly and argues directly. He adapts to different kinds of matters and to clients who arrive with varied needs and levels of legal knowledge. He has spent decades learning how to translate complex legal rules into straightforward advice.
Outside the courtroom, he has maintained ties to the legal community through professional membership. He has kept his practice small enough to stay closely involved in day-to-day client work while keeping ties to the broader bar. The pattern is familiar: a lawyer who prefers steady client service over a public profile.
As of 2026 he continues to maintain his private practice at Dennis M. Janssen, P.A., handling client matters from his office and representing individuals and businesses in civil matters.
