The Law Office of John B. Brennan Introduce
When you are faced with a criminal charge, the path forward can seem daunting and uncertain. The legal system is complex, and the consequences of a conviction can be life-altering. For those in New Jersey, having an experienced, knowledgeable, and dedicated criminal defense attorney is not just an advantage—it is a necessity. The Law Office of John B. Brennan in Princeton, NJ, stands as a formidable advocate for individuals navigating the criminal justice system. With a unique background as a former prosecutor, John B. Brennan brings an invaluable perspective to every case, understanding not only how the defense works but also how the prosecution builds its case. This dual insight provides clients with a powerful and strategic advantage.
The firm's mission is simple yet profound: to protect the rights, reputation, and freedom of its clients. The approach is personal and client-focused, recognizing that behind every case is a human being facing immense stress and anxiety. John B. Brennan is known for his ability to listen, providing clear and honest advice from the very first consultation. He takes the time to explain the legal process, answer all questions, and ensure his clients feel informed and supported every step of the way. This commitment to transparent communication and compassionate care is consistently highlighted in client testimonials, where he is praised not only for his professional competence but also for his genuine kindness and down-to-earth nature.
The Law Office of John B. Brennan handles a wide spectrum of criminal cases, demonstrating versatility and a deep understanding of New Jersey law. From minor traffic violations to serious felony charges, the firm is prepared to mount a robust defense. The focus is always on securing the most favorable outcome possible, whether that means a dismissal of charges, a reduction in penalties, or an acquittal at trial. The firm's reputation in the local community is a testament to its effectiveness and integrity, making it a trusted resource for anyone in need of expert criminal defense in the Princeton and greater New Jersey area.
The Law Office of John B. Brennan is conveniently located at 300 Carnegie Center Dr Ste 150-A, Princeton, NJ 08540, USA. This central and professional location within the Carnegie Center business park is easily accessible for clients throughout Central New Jersey. Its position offers convenience for those in Mercer County and surrounding communities, including Trenton, Hamilton, and West Windsor, ensuring that quality legal representation is never far away. The office provides a discreet and respectful environment for discussing sensitive legal matters.
The firm is dedicated to providing an accessible experience for all clients. The location offers a wheelchair accessible parking lot, ensuring that individuals with mobility challenges can easily park and navigate to the office. Furthermore, the building includes a wheelchair accessible restroom, providing comfort and convenience for all visitors. The firm understands the importance of providing a welcoming environment for every member of the community. In order to provide the most focused and prepared legal counsel, appointments are recommended, which ensures that you will receive the full attention you deserve from your attorney.
The Law Office of John B. Brennan specializes in criminal justice, offering a comprehensive suite of defense services to protect the rights of individuals facing charges in New Jersey.
DUIs & Reckless Driving Defense: Providing aggressive defense for clients charged with driving under the influence (DUI/DWI) and other serious traffic violations, aiming to minimize or eliminate penalties.
Felony & Misdemeanor Defense: Representing individuals in a wide range of cases, from petty crimes and misdemeanors to serious felony charges, including homicide, assault, and robbery.
Drug-Related Offenses: Defending clients against charges of drug possession, distribution, and trafficking, leveraging deep knowledge of search and seizure laws.
Domestic Violence & Assault Charges: Providing sensitive and strategic legal counsel for domestic violence and aggravated assault cases, ensuring clients' rights are protected from the moment of arrest.
Sex Offense Defense: Offering discreet and expert legal representation for serious and sensitive sex offense charges.
Weapons & Gun Charges: Handling complex cases involving firearm violations and illegal possession of weapons, a serious matter in New Jersey.
Juvenile Crimes: Providing legal defense for minors facing criminal charges, with a focus on protecting their future and securing a second chance.
What makes The Law Office of John B. Brennan a standout choice for criminal defense in New Jersey is a combination of professional expertise and a client-focused approach.
Former Prosecutor: John B. Brennan's background as a prosecutor gives him a unique and powerful understanding of how the state builds its cases, allowing him to anticipate strategies and build a stronger defense for his clients.
Experienced & Knowledgeable: With a career dedicated to criminal law, he possesses a deep and current knowledge of New Jersey's criminal code and trial procedures, offering expert legal counsel.
Compassionate & Professional: Client reviews consistently praise his attentiveness, responsiveness, and genuine care for his clients, making a difficult and scary situation more manageable.
Accessible Office: The firm provides a wheelchair accessible parking lot and restroom, ensuring that all clients can comfortably visit the office.
Appointments Recommended: To ensure dedicated time for each client, the firm recommends making an appointment, which guarantees personalized and focused attention for your case.
To schedule a confidential consultation with John B. Brennan, you can use the following contact information.
Address: 300 Carnegie Center Dr Ste 150-A, Princeton, NJ 08540, USA
Phone: (856) 528-8998
When facing criminal charges, the decision of which attorney to hire is one of the most critical choices you will ever make. The Law Office of John B. Brennan is a compelling choice for anyone in the New Jersey area, and what makes it truly worth choosing is the powerful combination of a prosecutor's insight with a defense attorney's dedication. John B. Brennan's extensive background prosecuting criminal cases gives him a rare and invaluable perspective on how to effectively challenge the state's evidence and build a strong defense. As one client review noted, his prosecution background helped them achieve a "very favorable outcome" with no jail time, a testament to his strategic prowess.
Beyond his professional credentials, the personal touch he brings to his work is a key differentiator. The consistent theme in his client reviews is not just about the successful results but also about his kind, down-to-earth nature and genuine care. He is described as a lawyer who "listens to what happened to you" and "doesn't waste your time," which provides immense comfort and reassurance during a highly stressful period. This balance of being an "outstanding lawyer" who is also "a real down to earth guy" is a rare find. The firm's commitment to accessibility, with wheelchair accessible facilities, also shows a commitment to serving all members of the community. In a time of crisis, you need an attorney who is not only a fierce legal advocate but also a compassionate human being, and The Law Office of John B. Brennan offers exactly that, making it a clear and confident choice for anyone in need of a criminal defense lawyer in New Jersey.
The Law Office of John B. Brennan Services
Criminal Justice Attorney
- DUIs & reckless driving defense litigation
- Domestic violence litigation
- Drug possession defense litigation
- Federal criminal defense litigation
- Felony defense litigation
- General criminal defense litigation
- Petty crimes & misdemeanor defense litigation
- Sex offense defense litigation
- Aggravated Assault With A Deadly Weapon
- Aggravated Sexual Assault
- Assault Cases
- Assault Charges
- Assault Defense
- Battery Charges
- Burglary Charges
- Child Endangerment Charges
- Civil Trial
- Criminal Assault
- Criminal Cases
- Criminal Charges
- Criminal Conviction
- Criminal Defense Attorney For
- Criminal Defense Lawyer
- Criminal History
- Criminal Offense
- Criminal Proceeding
- Criminal Trial Attorneys
- Criminal Trial Law
- Criminal Trial Lawyer
- Cyber Crimes
- Detention Hearings
- Domestic Violence
- Drug Charges Dui
- Dui / Dwi
- Dwi Charges
- Firearm Violations
- Fraud Charges
- Gun Crimes
- Gun Possession Charges
- Homicide Charges
- Juvenile Crimes
- Legal Representation
- Manslaughter Charges
- Murder Charges
- Narcotics Distribution Charges
- Prescription Drug Charges
- Robbery Charges
- Tax Evasion
- Terroristic Threats
- Theft Crimes
- Traffic Violations
- Violent Crimes
- Weapons Charges
- White Collar Crimes
- Workers’ Compensation Law
The Law Office of John B. Brennan Details
Accessibility
- Wheelchair accessible parking lot
- Wheelchair accessible restroom
Amenities
- Restroom
Planning
- Appointments recommended
The Law Office of John B. Brennan Photos




The Law Office of John B. Brennan Location
The Law Office of John B. Brennan
300 Carnegie Center Dr Ste 150-A, Princeton, NJ 08540, USA
The Law Office of John B. Brennan Reviews
understandingquestionscounselprosecutor
★ 5★ 4★ 3★ 2★ 1Working with John Brennan has been an exceptional experience. He is an outstanding lawyer who has provided invaluable legal advice on multiple occasions. His attentiveness and deep understanding of the law have consistently impressed us. I highly recommend his services to anyone in need of expert legal counsel.”
March 04 · john moranI would highly recommend John Brennan's legal counsel for any criminal offense. My son was charged with a crime that would have had him serving time in jail for his offense because of a lapse in judgement on his part. John took the time to explain everything we would have to go through. He was very responsive and answered all of our questions. His prosecution background helped acquire a very favorable outcome for my son with no jail time.
February 01 · ellen bondDuring an unexpected difficult time in my life. John was understanding while being straight forward and professional.His experience as a Prosecutor turned Attorney was beneficial to my case and I was satisfied with the outcome.
October 22 · Steve AlexanderAtty Brennan was extremely helpful is resolving my traffic ticket and getting the best possible result in my case. He was professional and explained the process. I would hire him again and refer him to others for legal assistance.
November 14 · SNJ GirlProfessional and extremely competent representation. Prompt and easy to understand communication in regards to legal explanation and answering questions.Hopefully no one i know will ever require Mr. Brennan’s services but i would recommend him highly!
August 17 · Peter Schroeder
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