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I am a former prosecutor with over 32 years of Criminal Trial experience. Certified by the New Jersey Supreme Court as a Criminal Trial Attorney.
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37 years
37 years
37 years
Free Consultation
$0 first 60 minutes
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Chat withState: New Jersey
Acquired: 1989
No misconduct found
State: Pennsylvania
Acquired: 1989
No misconduct found
10000 Lincoln Dr, East, Suite 201, Marlton, NJ, 08053
53 Client Reviews
Showing 1 - 5 of 16 reviews | Responsiveness
Posted by Johanna | March 27, 2026 | Hired Attorney | Criminal Defense
Efficient and Effective Representation
Even though my case wasn’t a major one, Mr. Brennan handled it with professionalism and care. He was attentive, quick to respond, and made sure I understood everything along the way. Thanks to his efforts, my case was reduced to an ordinance violation. I’m very grateful for his support and would defi...
Posted by Yaron Daniel | December 14, 2022 | Hired Attorney | Criminal Defense
Amazing lawyer!
I got a letter in the mail that I was indited from a case a long time ago that I had no idea about! I was so scared that I was going to jail because of this! I did my research and came across Mr. Brennan. From the first phone call they were helpful and ready to meet with me to talk about what’s going...
Posted by anonymous | February 22, 2022 | Hired Attorney | Speeding & Traffic Ticket
Personalized and prompt
I looked him up on the Internet and found many. I read his bio and just called and tried my luck. He picked up right away and was very reassuring. He told me what to expect and was in constant contact with me up to the court hearing fir my traffic violation. He successfully defended me and won the ca...
Posted by L.L. | August 16, 2020 | Hired Attorney | Criminal Defense
Hiring Mr. Brennan made a statement without having to say anything!
Mr. Brennan is a reliable and trustworthy attorney. I am very pleased with the outcome of my criminal case. Mr. Brennan kept me informed and helped ease my nerves throughout the entire process. Any questions or concerns I had were taken seriously and responded to quickly. Being a former (respectable)...
Posted by anonymous | July 21, 2020 | Hired Attorney
Very Professional
John was extremely professional, intelligent and helped eased any nerves I had moving forward in my case. He kept me up to date on what was happening and helped explain things if I seemed confused. He was a fantastic lawyer
"I had the privilege of working with and learning from John Brennan at the Burlington County Prosecutor's Office. I have also handled various criminal defense matters with Mr. Brennan since he went into private practice. Simply stated, Mr. Brennan is a phenomenal criminal trial attorney. He is knowledgeable, talented and typically has more trial experience than the prosecutor's he goes up against. For those reasons, I hold Mr. Brennan in the highest regard and am happy to endorse him in the area of criminal defense."
"John is an excellent attorney who not only cares about his clients but has the tools knowledge and experience to help them. I have referred many cases to John over the years, because I know that he will give them his very best."
"John and I were adversaries on many cases when he was at the prosecutor's office. He was a consummate professional who always treated me and my clients with respect."
"I had the pleasure of working for, and learning from, Mr. Brennan in the Burlington County Prosecutor's Office. He is one of the finest trial attorneys I have ever seen in my career and is thoroughly knowledgeable of all aspects of criminal law. He fights for his clients and obtains the best possible result. I endorse him without reservation."
"Mr. Brennan has a wealth of experience(over 25 years) in the area of criminal law. This has garnered him wide recognition in the court system-particularly here in Burlington County."
Criminal defense lawyer
Criminal defense lawyer
Unknown lawyer
Criminal defense lawyer
Criminal defense lawyer
2018
Peer Review Rated, Martindale-Hubbell
2014
Certified Criminal Trial Attorney, New Jersey Supreme Court
2014 - Present
Owner, Law Office of John B. Brennan
1989 - 2014
Assistant Prosecutor, Burlington County Prosecutor's Office
2015 - Present
Burlington County Bar AssociationMember
1989
JD - Juris Doctor
1989
BA - Bachelor of Arts
English
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