Skip to content

The Law Office of John B. BrennanCriminal defense lawyer in Princeton, NJ

The Law Office of John B. Brennan is a criminal defense lawyer at 300 Carnegie Center Dr Ste 150-A, Princeton, NJ 08540, ranked #21 of 197 criminal defense lawyers in Princeton and rated 5.0 from 10 Google reviews. Open 24 hours a day, 7 days a week.

Facts on this profile come from public sources and from the firm. This is not legal advice, and contacting the firm does not make it your lawyer. Check the lawyer’s standing with the state bar or law society before you hire.

Princeton, NJUpdated 0 paid placements in any rankingHow we rank

Call (856) 528-8998Website ↗

Key facts

Key facts about The Law Office of John B. Brennan
Address300 Carnegie Center Dr Ste 150-A, Princeton, NJ 08540Get directions
Phone(856) 528-8998
Websitejohnbbrennanlaw.com
HoursOpen 24 hours, 7 days a week
Google rating5.0 from 10 Google reviews

Practice areas

Each practice area shows the evidence we matched it on.

Service area

Serves Princeton and 11 towns within 30 miles: Princeton Meadows, Mercerville, Mercerville-Hamilton Square, Hamilton Square, Ewing, Trenton, Franklin Park, Voorhees, East Brunswick, Somerset and New Brunswick.

Based in Princeton, NJView on map

Opening hours

Opening hours for The Law Office of John B. Brennan
DayHours
MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours
  • Open 24/7
  • Open evenings — no
  • Open Saturdays
  • Open Sundays
  • Emergency service

Questions about The Law Office of John B. Brennan

How is The Law Office of John B. Brennan ranked in Princeton?

The Law Office of John B. Brennan is ranked #21 of 197 criminal defense lawyers in Princeton by LFR Score, with 66 out of 100 as of November 2026. The score weighs reputation, bar status, review volume, recency, availability, practice focus, proximity, claimed profile and law firms ranked reviews. No business can pay to change its rank.

What are The Law Office of John B. Brennan’s hours?

The Law Office of John B. Brennan is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

What areas does The Law Office of John B. Brennan serve?

Serves Princeton and 11 towns within 30 miles: Princeton Meadows, Mercerville, Mercerville-Hamilton Square, Hamilton Square, Ewing, Trenton, Franklin Park, Voorhees, East Brunswick, Somerset and New Brunswick. The list is based on the business's location and the usual service radius for criminal defense. Confirm your address is covered when you call.

What do Google reviews say about The Law Office of John B. Brennan?

The Law Office of John B. Brennan has a rating of 5.0 from 10 Google reviews. The LFR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact The Law Office of John B. Brennan?

Call The Law Office of John B. Brennan on (856) 528-8998. The business is at 300 Carnegie Center Dr Ste 150-A, Princeton, NJ 08540. Its website is linked in the key facts on this page. Ask how the firm charges before the first meeting, and keep confidential details for after its conflict check.

Own The Law Office of John B. Brennan? Claim this profile.

Claiming is free. Correct your hours, practice areas and service area. The LFR Score is recalculated from corrected data; payment never changes it.

Claim this profile

Compare nearby criminal defense lawyers

The Law Office of John B. Brennan compared with nearby businesses
BusinessRankLFR ScoreGoogle ratingSaturdaySundayDistance away
The Law Office of John B. Brennan (this business)—665.0 (10)YesYes
William Proetta Criminal Law#19664.9 (119)YesYes22.1 mi
John Hartmann, Esq.#20664.9 (90)YesNo1.6 mi
Mark H. Jaffe Attorney At Law#22664.0 (49)YesYes4.8 mi

See all 197 ranked criminal defense lawyers in Princeton