Overall Rating
This is an aggregated review score of Avvo and Lawyers.com reviews.
This is an aggregated review score of Avvo and Lawyers.com reviews.
5.0 /5.0
22 Client Reviews
PRO
Free Consultation
Marc Gann is one of the most highly regarded lawyers on Long Island. An AV-rated attorney who served as a past president of the 6,000-member Nassau County Bar Association from 2010-2011, Gann is on the "short list" of preeminent Nassau County criminal defense practitioners, and has handled numerous high-profile cases throughout the NY metropolitan area.
Mr. Gann also serves on the Grievance Committee for the Tenth Judicial District (reviewing the legal competence and professional conduct of lawyers in the Tenth Judicial District). He is listed in the Bar Register of Preeminent Lawyers, and in 2014 was named to the list of New York Metro Super Lawyers.
An experienced trial lawyer, Mr. Gann defends all types of criminal cases - from minor traffic matters and drunk driving cases to the most serious major felonies - in the courts of Manhattan, Brooklyn, Queens, the Bronx, Staten Island, Nassau County and Suffolk County. He has handled serious felony charges in both the Southern and Eastern Federal Districts of New York and is particularly experienced in the defense of murder cases, and was certified to handle death penalty cases by the New York Capital Defender's Office. He has handled numerous homicide cases including a double murder in Nassau County, and has been lead counsel in the defense of a multi-defendant murder and kidnapping case that received national attention. He is also experienced in the defense of drug cases, including cases involving anabolic steroids and other performance enhancing drugs.
Mr. Gann has taken verdicts on major felony charges such as burglary, robbery, drug sale and commercial fraud. He has examined and cross-examined all types of witnesses from civilian and police witnesses to experts in areas such as ballistics, fingerprints, serology and forensic pathology. He also has expertise in the defense of Driving While Intoxicated cases, having defended many hundreds of these cases. Having prosecuted drunk driving cases exclusively for a portion of his tenure as an assistant district attorney, trying numerous cases to verdict, he has a substantial practical advantage in now defending these cases.
Prior to his role as President of the Nassau County Bar Association, Mr. Gann also previously served as an elected Director of the NCBA. He is Past Chair of the Criminal Courts Law and Procedure Committee of the Bar, where he planned and chaired continuing legal education programs and seminars for criminal lawyers throughout the county. He was honored as the recipient of the Association's 2001 Directors' Award for his outstanding contributions the legal community.
He has frequently lectured to the local and State Bar Associations and the National Institute of Trial Advocacy. In recognition of his superlative trial skills, he was asked to serve as Team Leader for the 2002 National Institute of Trial Advocacy program at Hofstra University Law School. Mr. Gann continues to serve as Adjunct Faculty at Hofstra Law.
He has been interviewed by the media on many occasions regarding issues of criminal law, and he often appears on local television. He is a past president of the Former Assistant District Attorneys Association of Nassau County and is a member of the American Bar Association and other legal and professional associations. He is also highly active in community associations and volunteer programs, including serving for many years in a Bar association student mentor program at a local middle school.
Following his tenure as a prosecutor in Nassau County, Mr. Gann spent several years in Baltimore handling both criminal and civil matters in State and Federal court before returning to New York to form Collins, McDonald and Gann, P.C.
19
Practice Areas
42 years
42 years
Free Consultation
$0 first 60 minutes
State: Maryland
Acquired: 1985
No misconduct found
State: New York
Acquired: 1985
No misconduct found
Showing 1 - 4 of 4 reviews | Communication Style
Posted by anonymous | September 09, 2020 | Hired Attorney | Lawsuits & Disputes
Exceptional experience
Choosing Marc Gann as my lawyer was by far the best decision I made during my court case. I switched lawyers in the middle of my case with only google reviews, and a good first impression. I am so grateful I did!! Marc is an exceptional person and a great lawyer. He never oversold me, and from the mo...
Posted by Todd | August 21, 2018 | Hired Attorney | Speeding & Traffic Ticket
Excellent Attorney & Compassionate Human Being!
To make a very long story short, several months ago, I started receiving traffic citations in the mail from the Nassau County TPVA. These citations alleged my vehicle (or at least my Massachusetts license plate) was photographed committing various traffic infraction around the county. I am an activ...
Posted by anonymous | July 25, 2015 | Criminal Defense
Excellent Attorney
Marc Gann is an excellent attorney. He represented me and all charges ended up being dropped. He made sure I was informed of all my options as the case progressed, and advised me of the repercussions of each option. I would definitely recommend him to anyone facing criminal charges.
Posted by anonymous | April 07, 2015 | Criminal Defense
Marc Gann
I am writing this review for Marc Gann. I had the pleasure of working with Marc for over a year after he was recommended to me when I was arrested and charged with a Criminal Felony last year. Going through the horror, embarrassment and emotional turmoil know one can ever prepare you for. I had no i...
"I have had the pleasure of working with Marc as opposing counsel on numerous criminal matters in Nassau County during my tenure as a Prosecutor. Now that I'm in private practice I consider him a colleague. In addition to his tremendous knowledge and experience with criminal matters, Marc is always courteous and professional. He is indeed one of the most well respected criminal defense attorneys on Long Island and as such I highly recommend Marc for any criminal defense case."
"I have had the pleasure of working with Marc on several criminal matters in Nassau County. Marc is one of the most well respected and knowledgeable criminal defense attorneys on Long Island. I highly recommend Marc for any criminal defense case."
"When it comes to criminal defense, Marc Gann is second to none. I have known Marc for over seven years, and his demonstrated trial skills and reputation in the legal community allow him to consistently deliver results for his clients. I endorse highly endorse Marc for any criminal defense issue."
"Mr. Gann is renowned in the legal field. He has excellent litigation skills and is branded as a top attorney."
"I endorse this lawyer. I've known Marc for over a decade and he is an honest and very competent criminal defense attorney and he has a great firm. I heartily endorse him."
"I endorse this lawyer. Marc is one of the most respected members of the criminal defense bar in Nassau County and beyond. Judge's listen to him, prosecutors fear him and defendant's appreciate him for all that he can and will do for them when they need him the most. If Marc is your advocate, he gives you a great chance for the best result possible."
"I have known Marc for a number of years and can say he is a true leader among the Long Island attorney's community. Through his tireless work in the courts he has established himself as one of the finest defense attorneys in Long Island. It is a privilege to endorse him."
"Marc is an excellent lawyer. He is always the best prepared attorney in the courthouse. Marc is dilligent and very hard working. He is a very fine strategist and exeptionally knowledgable. I highly endorse his work."
Criminal defense lawyer
Criminal defense lawyer
Criminal defense lawyer
Criminal defense lawyer
Criminal defense lawyer
Criminal defense lawyer
2025
Super Lawyer, Super Lawyers
2024
Super Lawyer, Super Lawyers
2023
Super Lawyer, Super Lawyers
2022
Super Lawyer, Super Lawyers
2021
Super Lawyer, Super Lawyers
2020
Super Lawyer, Super Lawyers
2019
Super Lawyer, Super Lawyers
2018
Super Lawyer, Super Lawyers
2017
Super Lawyer, Super Lawyers
2016
Super Lawyer, Super Lawyers
2015
AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell
2015
Super Lawyer, Super Lawyers
2014
Super Lawyer, Super Lawyers
2001
Directors' Award, Nassau County Bar Association
N/A
Client Champion Award, Martindale-Hubbell
N/A
AV Preeminent Rated, Martindale-Hubbell
1990 - Present
Partner, Collins, McDonald & Gann, P.C.
1900 - Present
Partner, COLLINS GANN McCLOSKEY & BARRY PLLC
2009 - Present
Nassau County Bar AssociationPresident-Elect
1984
JD - Juris Doctor
1981
BA
English
Legal Answers
Top Contributor
Marc earned significant contribution points in 2015.
How much does it cost for a lawyer to look at my case for petit larceny?
04 Feb 2021
Question on a search and seizure
19 Aug 2020
I Need A Good Lawyer For An Assault Charge
21 Jul 2020