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Dennis Brendan O'sullivan

Transportation Attorney at Jamaica, NY

5.0   3 reviews
  • Licensed for 25 years
    State NY
    Acquired 1999
    Due to Register within 30 Days of Birthday No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Dennis

Learn Dennis’s areas of practice.

Practice areas
  1. Transportation
    The Law Office of Dennis O'Sullivan represents commercial vehicles in all courts in New York State. We specialize in overweight violations, equipment summonses, driver citations, criminal offenses, and environmental and administrative hearings.

    24 years

  2. Speeding and traffic ticket
    The Law Ofice of Dennis O'Sullivan represents motorists in all New York State courts, including Traffic Violations Bureau hearings and local courts.

    24 years

  3. Criminal defense
    DWI Defense; DWAI Defense; Driving with a Suspended License; Suspended Registrations; Leaving the scene of an accident; reckless driving

    24 years

  4. Environmental and natural resources
    The Law Office of Dennis O'Sullivan defends individuals and businesses in NYS Department of Environmental Conservation administrative proceedings.

    24 years

Managing Attorney of New York boutique law firm specializing in Commercial Trucking Law and Motorist Defense/Moving Violations.
Firm also maintains criminal defense, landlord tenant and real estate practices throughout New York State.

Former IT Professional and Technical Recruiter


Commercial Vehicle Violations, Commercial Fleet regulations/requirements, Overweight Vehicle citations, Administrative Law, Environmental Crimes defense, Vehicle and Traffic Law, Reckless Driving defense, Landlord Tenant Law, Real Estate and Criminal defense work.


Dennis Brendan O'sullivan
14811 175th St Ste 2
Jamaica, NY, 11434-5524

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5.0 / 5.0
  3 customer reviews
5 Star
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1 Star
Posted by Tysaun | March 31, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Highly Recommended Lawyer
Got referred to Mr. O’ Sullivan by another great lawyer , once I reached out to him he told me that he would happily take care of my traffic infractions. When our court date was approaching he didn’t guarantee me anything but he was confident that we would come out of court with an awesome deal and on the day of court did. He got an unlicensed operator ticket and another ticket I had that was worth 4 points on my licensed both dropped down to 3 J walking tickets with low fines and no points so I was beyond happy and he is highly recommended for his professionalism all across the board
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Posted by Chris | August 19, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Ticket dismissed!
Mr. O'Sullivan did a great job for me and had a very reasonable fee. I had a speeding ticket in NYC worth 6 points and he was a tremendous help. He is friendly, professional, and knowledgeable. He was very on top of assisting me through the process and was very responsive to my questions and concerns. Overall a great experience with a good outcome!
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Posted by Abe | February 18, 2014
Excellent Attorney!
I have hired Dennis on more than one occasion for some serious traffic speeding violations both in the city and upstate. He did a phenomenal job in getting my point lowered to practically O or very close. He really goes the extra mile and is a very seasoned attorney.


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AVVO RATING 7.8 (Very Good)


  • Fordham University School of Law
  • JD - Juris Doctor
  • 1995

Attorney endorsements

Received (2)
Given (0)
Endorse Dennis
Criminal defense Attorney | Mar 13
Relationship: Worked together on matter
"I endorse this lawyer. Dennis O'Sullivan is honest and diligent and a genuinely good person who works hard to get the best results for his clients."
Unknown Attorney | Aug 16
Relationship: Fellow lawyer in community
"I endorse this lawyer."
This attorney hasn't created any attorney endorsements recently on Avvo.

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Jamaica Transportation Lawyer Dennis Brendan O'sullivan
Dennis Brendan O'sullivan
Transportation Attorney
Jamaica, NY
Licensed for 25 years