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Trimble & Register is a general practice law firm offering a wide range of legal services to public and private clients. Our firm is comprised of knowledgeable and experienced professionals who work as a team to obtain the best possible outcomes for our clients. With over 40 years combined experience, we provide personalized attention, a dedicated staff and a commitment to pursue what you deserve. While providing highly effective legal counsel, we are willing to take on the toughest cases and work closely with our clients every step of the way.













Managing Partner

John W. Trimble, Jr.


Katrina M. Register

Managing Partner

John W. Trimble, Jr.

By being so willing to engage in litigation, John Trimble has won his clients more fair and just judgments and settlements than they might have gotten elsewhere. He has represented plaintiffs in personal injury, class actions, consumer fraud, and criminal and municipal court cases for more than 20 years. Possessing the combined abilities of a sharp litigator and a tough negotiator, John Trimble is certified by the New Jersey Supreme Court as a Certified Civil Trial Attorney, a designation granted only to those who demonstrate a sufficient level of experience, knowledge, education, and skill in civil trial practices. His selection as a New Jersey Super Lawyer in the practice areas of class action/mass torts, business litigation, and personal injury, reflected the respect he has earned from peer attorneys. John Trimble is licensed in New Jersey Superior Court, the Pennsylvania Court of Common Pleas, and Federal Court and the Supreme Court of the United States of America. John Trimble is also an active community member, coaching youth lacrosse in Monroe Township. John Trimble resides with his wife, Cathy, and four children in Williamstown, NJ. His interests, other than fighting for his clients, includes coaching and mentoring, hunting, fishing and spending time with his family.

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Katrina M. Register

Katrina M. Register (formerly “Geary”), Esquire has been a member of Trimble & Register since 2009. Katrina joined the firm as an associate attorney in 2011. Her practice is concentrated on areas of Complex Civil Litigation, Consumer Fraud, Business Disputes, Education Law, Personal Injury, Family Law and Municipal Law.
Katrina was born in Voorhees, New Jersey and raised in Hammonton/Winslow Township, New Jersey. In 2004, Katrina moved to Ohio and worked part-time as a licensed optician, paralegal and correctional officer throughout college. In 2008, Katrina graduated from the University of Cincinnati with a Bachelor of Science in Criminal Justice.

During the Summer of 2009, Katrina completed an legal internship program at the New Jersey Office of the Governor, Trenton, NJ. She conducted a comparative analysis of New Jersey statutes and similar Pennsylvania, Delaware, New York and Maine statutes and prepared research proposals in an effort to increase revenue for the Governor’s Commission on the Horse Racing Industry.

While in law school and working for Trimble & Register, Katrina taught courses in Criminal law and Constitutional law to numerous inner city Camden high schools and Juvenile detention centers in Burlington County. During Katrina’s third year of law school, she provided legal representation to children in juvenile court hearings pursuant to NJ Practice Rule 1:21-3.

Katrina also researched South African Constitutional Law with an emphasis on the South African Juvenile Justice System. Prior to graduating, Katrina had the opportunity visit South Africa. She attended the Constitutional Court of South Africa in Johannesburg, visited Kruger National Park, Cape of Good Hope and Robben Island along with climb Table Mountain in Cape Town.

In 2011, Katrina received her Juris Doctor from the Rutgers School of Law-Camden where she earned an award for her service and recognition for 40+ hours of pro bono commitment.

Currently, Katrina resides with her husband, Brandon, and two children in Camden County, NJ. When Katrina is not writing legal briefs and advocating for her clients, Katrina and Brandon spend time with their children and four-legged companions, two dogs and horse. Katrina enjoys the beach, horseback riding, hiking, traveling and spending time with family. Katrina is active in her community and church as well as volunteers her time to mentor young adults in pursuing higher education.

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OVER $50,000,000 WON

Lawsuit against national builder for construction defects on behalf of 1,065 homeowners settled for $21,000,000.


We offer personalized attention, a dedicated and talented staff, and an unwavering commitment to pursue what you deserve. Our firm includes a certified civil trial attorney. We approach each case as if it will go to trial. Our client-focused approach ensures your best chance of winning a fair judgment or settlement.

Our clients agree. Read what they say.


You deserve justice, but the prospect of going up against large
corporations and big insurance companies is intimidating.

John, I want to thank you for all of the work you did on my case. I appreciate the way you took the time to explain the process to me and respond to all of my questions. You have an intimate knowledge of local, state, and federal practices and procedures, and you are a bright and resourceful person who made yourself available whenever needed. You fought tooth and nail against a combative defense attorney with decades of experience, and in the end achieved a great result for me. I plan on recommending your firm to everyone!
Thank you again,

Larry Christy

The road of life can have many unexpected bumps and turns along the way, and you do not want to bounce the wrong way when it comes to legal matters. I have come to trust and admire John Trimble, Jr., for almost 15 years now. When it comes to legal advice and expertise, John is one of the best! I have had some difficult struggles with personal injury, a house fire, and a contract dispute, to name a few. John Trimble represented me with a confidence and style that reflect compassion and understanding. This is priceless when you are in pain, hurting, confused, and not sure what to do next. I was always glad he was my attorney and not opposing counsel! John will advise you every step of the way.

My cases usually settled before trial, except for one. When John Trimble is in the courtroom, he has a passion and flair for fighting for you. He will go all-out to win, and in a big way. Believe me, Trimble & Register is the right call to make when life gets bumpy. He and his staff have helped me and my family smooth out some rocky roads that seemed impossible to navigate alone.

Christa Nelson-Jost