John B. Brennan

John B. Brennan

5.0
Rating: 9.7

Licensed for 36 years

Criminal defense Lawyer at Marlton, NJ
Practice Areas: Criminal Defense, Sex Crime, Violent Crime

10000 Lincoln Dr, East, Suite 201, Marlton, NJ

About John

Biography

Practice Areas

3

Practice Areas

Criminal Defense 40%

Criminal matters in the Superior Court of New Jersey, United States District Court for the District of New Jersey, New Jersey Municipal Courts

37 years

40%
Sex Crime 30%

All matters concerning sexual offenses. Sexual assault, Endangering the welfare of a child, child pornography, Megan's Law.

37 years

30%
Violent Crime 30%

Gun Crimes Murder, Robbery, Aggravated assault. Weapons offenses, 2nd Amendment Gun issues

37 years

30%

Fees and Rates

Cost

Free Consultation

$0 first 60 minutes


Payment Methods

  • Cash
  • Check
  • Credit Card

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Licenses

Licensed in New Jersey for 36 years

State: New Jersey

Acquired: 1989

Active

No misconduct found

Licensed in Pennsylvania for 36 years

State: Pennsylvania

Acquired: 1989

Retired

No misconduct found

Location

The Law Office of John B. Brennan

10000 Lincoln Dr, East, Suite 201, Marlton, NJ, 08053

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John B. Brennan's Reviews

Avvo Review Score

5.0 /5.0

53 Client Reviews

Filter Avvo Reviews (53) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 1 - 5 of 15 reviews | General Knowledge

Posted by Merla | June 28, 2021 | Hired Attorney | Criminal Defense

Mr. John Brennan

Mr. Brennan was the best lawyer I could have hired. He took my case and listen to me when I explained what had happen . He advised me to not to talk to anyone concerning my case and to attend all the court dates. He worked on getting me in the PTI program and got the restitution reduced to an amount ...I could pay. Mr. Brennan stayed in touch with me through out the entire time with phones and emails he was always professional and friendly he kept my spirits up and gave me good sound advice. I would recommend Mr. Brennan to anyone who needs a lawyer. Thank you

Posted by anonymous | December 04, 2020 | Hired Attorney | Criminal Defense

A superb attorney !

Attorney John Brennan is honestly the BEST at what he does, plus he demonstrated to me that he is also a superb person. Mr. Brennan was essential in saving me from a very scary ordeal which I did not create. I was framed for assault by a person I thought was a friend. Unfortunately for me this pe...rson was bi polar and had a violent past and I was frightened and anxious. Thankfully I found Mr. Brennan's name on an internet search. He was diligent in taking my case immediately with careful attention. Mr. Brennan exemplified professionalism and he also showed true concern for me. He is very skilled and experienced, in all regards he knew just what to do to in order to best proceed with my case. All charges were dropped and I was cleared of all wrongdoing. Additionally and importantly, I feel safe again! Of course- I hope that I NEVER again need a criminal defense attorney, but I should add that I was able to afford him also, which is a big factor. This speaks volumes about his character, when many lawyers charge higher fees for less finesse. You can trust he will get the job done in your case to the best of his ability, and I highly recommend him!

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)... Prosecutor, I think John has a better understanding of what is expected and can see a case from all points of view. This experience also affords Mr. Brennan the confidence needed as a defense attorney. It didn’t hurt when I stated my attorneys name everyone seemed to know of him. To me, speaking his name made one clear statement; I was taking the matter very seriously and prepared for anything that may come. This confidence is exactly what I needed and really helped me get through a rough time. I’m glad I chose John Brennan as my criminal defense attorney.

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

Posted by Chris | July 01, 2020 | Hired Attorney | Criminal Defense

A Solid Professional

He was extremely knowledgable about the court system. Which makes sense, considering he is a former prosecutor. He made me feel at-ease, and helped me navigate the system. I would highly recommend him.

See All Client Reviews

John B. Brennan's Lawyer Endorsements

Endorse John
Daniel M. Rosenberg headshot
Daniel Rosenberg

Criminal defense lawyer | Dec 20

Relationship: Worked together on matter

"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."

Jason C. Pollack headshot
Jason Pollack

Criminal defense lawyer | Dec 18

Relationship: Fellow lawyer in community

"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."

Charles H Nugent Jr headshot
Charles Nugent

Criminal defense lawyer | Dec 16

Relationship: Fellow lawyer in community

"I endorse this lawyer."

Francis J Masciocchi headshot
Francis Masciocchi

Criminal defense lawyer | Dec 16

Relationship: Opposing Counsel on matter

"I endorse this lawyer. John is one of the best. He is well respected. I highly recommend him."

Katherine Dodge Hartman headshot
Katherine Hartman

Criminal defense lawyer | Dec 16

Relationship: Opposing Counsel on matter

"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."

Timothy S. Farrow headshot
Timothy Farrow

Criminal defense lawyer | Dec 16

Relationship: Fellow lawyer in community

"I endorse this lawyer."

Robert M. Perry headshot
Robert Perry

Criminal defense lawyer | Aug 26

Relationship: Worked for lawyer

"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."

Robert R Simons headshot
Robert Simons

Criminal defense lawyer | Jun 27

Relationship: Opposing Counsel on matter

"I endorse this lawyer."

Paul Ferrell Jr headshot
Paul Ferrell

Criminal defense lawyer | Apr 30

Relationship: Fellow lawyer in community

"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."

View All Endorsements
Stephen John Bodnar headshot
Stephen Bodnar

Criminal defense lawyer

Francis J Masciocchi headshot
Francis Masciocchi

Criminal defense lawyer

Robert M. Perry headshot
Robert Perry

Unknown lawyer

Robert R Simons headshot
Robert Simons

Criminal defense lawyer

Paul Ferrell Jr headshot
Paul Ferrell

Criminal defense lawyer

Experience

Rating:  9.7 (Superb)

Honors

2018

Peer Review Rated, Martindale-Hubbell

2014

Certified Criminal Trial Attorney, New Jersey Supreme Court

Work Experience

2014 - Present

Owner, Law Office of John B. Brennan

1989 - 2014

Assistant Prosecutor, Burlington County Prosecutor's Office

Associations

2015 - Present

Burlington County Bar Association

Member

New Jersey Association of Criminal Defense Lawyers

Education

1989

Widener University School of Law

JD - Juris Doctor

1989

College of New Jersey

BA - Bachelor of Arts

Languages

English

Activity

Avvo Rating

Our Rating is calculated using information the lawyer has included on their profile in addition to the information we collect from state bar associations and other organizations that license legal professionals. Attorneys who claim their profiles and provide Avvo with more information tend to have a higher rating than those who do not.

What determines Avvo Rating?
  • Experience & background Years licensed, work experience, education
  • Legal community recognition Peer endorsements, associations, awards
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Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution