Kevin J Mahoney

Kevin J Mahoney

4.9
Rating: 10.0

Licensed for 36 years

Criminal defense Lawyer at Cambridge, MA
Practice Areas: Criminal Defense, DUI & DWI, White Collar Crime ... +2 more

545 Concord Avenue, Suite 22, Cambridge, MA

About Kevin

Biography

Practice Areas

5

Practice Areas

Criminal Defense 65%

Mahoney has won 44 of his last 47 trials* and has been lead counsel in more than 100 trials and appeals. He regularly provides on-air legal analysis for Fox News Live, Fox & Friends, CNN, Nancy Grace, and Court TV's Catherine Crier Live. Court TV's Forensic Files chronicled his successful defense of Christina Martin, the "Jell-O Murderer." His new book, Relentless Criminal Cross-Examination is available from James Publishing Company.

34 years | 5,000 cases

65%
DUI and DWI 15%

Mahoney has been representing those accused of driving while intoxicated for almost two decades. He dedicated an entire chapter of his best selling book, Relentless Criminal Prosecution, to teaching lawyers how to cross-examine the police officer who arrested a driver for OUI.

34 years | 500 cases

15%
White Collar Crime 10%

Relying on a variety of forensic experts, Mahoney has won acquittals for those accused of embezzlement (allegedly over $400,000.00) and other white collar crimes.

34 years | 100 cases

10%
Animal Law 5%

Mahoney has developed a niche practicing representing individuals in custody disputes over pets, and defending those accused of stealing a domestic companion animal. He is also available to defend dogs at risk for being put down.

23 years | 5 cases

5%
Appeals 5%

Both as an Assistant District Attorney and as a Defense Lawyer, Mahoney has been successfully winning appeals before the Appeals Court and the Supreme Judicial Court. As an Editor of the New England Law Review and author of the best selling book on cross-examination, Relentless Criminal Cross-Examination, he has nearly unmatched writing and legal research skills.

34 years | 100 cases

5%

Fees and Rates

Cost

Free Consultation

$0 first 30 minutes

Retainer

Always


Payment Methods

  • Check

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Licenses

Licensed in Massachusetts for 36 years

State: Massachusetts

Acquired: 1989

Active

No misconduct found

Licensed in New York for 19 years

State: New York

Acquired: 2006

Resigned

No misconduct found

Licensed in District of Columbia for 34 years

State: District of Columbia

Acquired: 1992

Administratively Suspended - Non-Payment of Dues

No misconduct found

Location

Mahoney Criminal Defense Group

545 Concord Avenue, Suite 22, Cambridge, MA, 02138

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Kevin J Mahoney's Reviews

Avvo Review Score

4.9 /5.0

48 Client Reviews

Showing 11 - 15 of 16 reviews | Communication Style

Posted by Corey | July 31, 2014 | DUI & DWI

Recommend Mahoney for any OUI case.

Attorney Mahoney worked on an OUI (2nd) case for me for the past year. He was very attentive and very straight forward with me and he is overall a very trustworthy lawyer. The situation with my family was far from ideal and most lawyers probably would have thrown me to the curb and said find another ...attorney but he kept working with me despite the dilemma. When all was said in done I was acquitted of my OUI charge due to his aggressive cross examination of the arresting officer and strong arguments about discrepancies in the police report and pinned the case mainly on poor police work. He understood that i would have a record for the rest of my life at the age of 21 and i could tell he truly and genuinely cared that that didn't happen to me and how hard he prepared and worked on my case reflected that. The jury in my case came back unanimously with a not guilty verdict after a brief 10 minute deliberation. Mahoney was worth every penny that was spent and i would recommend him to anybody.

Posted by Kristen | July 16, 2014 | Criminal Defense

Attorney Mahoney got my case dismissed!

Attorney Mahoney represented me last month on a larceny charge that I faced.  He exceeded my expectations and made feel assured that I was in competent hands. I met with him twice and must have spoken with him at least half a dozen times during all of this.  He was very patient with me and generou...s with his time, as I was very nervous going in to all of this. On our second court appearance, he managed to get the case dismissed and the only thing I had to do was pay restitution.  I was incredibly relieved to say the least, and I'm very impressed with his skills as an Attorney. With all of this considered, I thought his fees were very reasonable, and I wouldn't hesitate to hire Attorney Mahoney again or recommend him to a friend.  I'm very grateful to him for his help.

Posted by CAROL | August 13, 2010 | Criminal Defense

EXTRAORDINARY REPRESENTATION - RELENTLESS DEFENSE SAYS IT ALL

WHILE VACATIONING IN THE STATE OF MASSACHUSETTS I WAS INVOLVED IN AN INCIDENT WHICH RESULTED IN CRIMINAL( FELONY AND MISDEMEANOR) CHARGES BEING FILED AGAINST ME. I FOUND MYSELF A VICTIM OF THE CRIMINAL JUSTICE SYSTEM .I FELT ALONE AND I WAS IN SERIOUS TROUBLE SO I HIRED AN ATTORNEY WHOSE NAME I WILL... NOT DISCLOSE. MY BAD DREAM BECAME A NIGHTMARE! MY SHIP WAS SINKING FAST AND I NEEDED HELP!!! THEN I FOUND ATTORNEY KEVIN J. MAHONEY. HE WAS VERY KIND AND UNDERSTANDING, VERY PROFESSIONAL, YET DOWN TO EARTH AND SO EASY TO COMMUNICATE WITH. HE MADE ME FEEL LIKE FINALLY THERE WAS SOMEONE I COULD TRUST. HE WENT TO WORK IMMEDIATELY BEFORE RECEIVING ANY MONEY UP FRONT AND MR. MAHONEY EVEN SPENT 2 1/2 HOURS ON THE PHONE WITH ME ON A SUNDAY,WHICH WAS ALSO FATHERS DAY.HE WENT ABOVE AND BEYOND AND KEPT ME INFORMED EVERY STEP OF THE WAY WITH NO WAITING OR WONDERING! HE TOOK MY CASE VERY PERSONAL AND TREATED ME AS IF I WAS HIS TOP PRIORITY. THERE ARE NO WORDS TO THANK HIM ENOUGH FOR EVERY THING HE DID FOR ME AND MY FAMILY.I REALIZE HE WAS JUST DOING HIS JOB BUT TO ME HE DID SOOOOO MUCH MORE. ATTORNEY MAHONEY SAVED MY LIFE AND I WILL BE FOREVER GRATEFUL THAT OUR PATHS CROSSED.

Posted by anonymous | December 08, 2008 | Criminal Defense

Extremely professional and dedicated

Kevin Mahoney recently represented me in a case for destruction of property and disorderly conduct. He was extremely thorough and persistent, and despite a great deal of evidence against me, he managed to get the felony charge dropped without having to go to trial. I had never been in legal trouble... before and had no idea how to proceed, and without his counsel, I am sure that I would have gotten convicted. I know that he had much more important and higher profile cases going on, but I always got the impression that mine was the most important to him. He took the time to understand my situation, explain all of my options in great detail, and always made sure that I knew what was going on. He listened to my specific needs and always acted in my best interest. His knowledge, attention to detail, and general courtroom presence continued to amaze me throughout the entire process. I owe him a great deal and would recommend him to anyone who needs a defense attorney.

Posted by anonymous | May 12, 2008

Aggressive, Trustworthy, and worth every cent you pay him.

Attorney Mahoney is bringing the legal community back with a great reputation as an Attorney. He is smart, very personable, calming, organized, keeps you well informed, aggressive, and prepared. He is someone I thought I'd never find and I found him online and glad I did! Finding a good lawyer is ...like finding a needle in the haystack and many times you don't find out what they are like until your already in the middle of a case with them and you can't turn back. I would never turn back with him. He saved my future, my life, reputation, and has made me feel whole again. I would recommend him to anyone.

See All Client Reviews

Kevin J Mahoney's Lawyer Endorsements

Endorse Kevin
David R Yannetti headshot
David Yannetti

Criminal defense lawyer | Aug 07

Relationship: Fellow lawyer in community

"I have known Kevin since the early 1990's, when we were colleagues together at the Middlesex District Attorney's Office. As criminal defense attorneys, we have represented co-defendants in a high-profile perjury case. I have found Kevin to be a well-prepared, articulate fighter for his clients. I enthusiastically endorse him for those seeking representation for a criminal defense matter."

David James Reger Ionson headshot
David Ionson

Lawsuits and disputes lawyer | Aug 18

Relationship: Worked together on matter

"I have had the pleasure of working with Attorney Mahoney on various cases and routinely solicit Attorney's Mahoney's council on litigation matters. Attorney Mahoney relentlessly and diligently represents his clients using the full extent of his vast abilities. Drawing upon his comprehensive trial experience combined with a brilliant legal mind and meticulous attention to detail make Attorney Mahoney a powerhouse in the courtroom and across the negotiation table. I would recommend Attorney Mahoney without reservation."

Michael S. Waddington headshot
Michael Waddington

Criminal defense lawyer | May 26

Relationship: Fellow lawyer in community

"I endorse Kevin. He is a highly skilled attorney that is well respected in the legal community."

Inna Rifman headshot
Inna Rifman

Criminal defense lawyer | Sep 15

Relationship: Fellow lawyer in community

"I endorse this lawyer.His responses on avvo evidence a deep understanding and knowledge of the law."

View All Endorsements
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Joan Legraw

Litigation lawyer

David R Yannetti headshot
David Yannetti

Criminal defense lawyer

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David Ionson

Business lawyer

Experience

Rating:  10.0 (Superb)

Honors

2016

Top 100 Trial Lawyers, National Trial Lawyers

2015

Top 100 Trial Lawyers, National Trial Lawyers Association

2014

Top 100 Trial Lawyers, National Trial Lawyers

2013

Top 100 Trial Lawyers, National Trial Lawyers

2012

Top 100 Trial Lawyers, National Trial Lawyers

2011

Top 100 Trial Lawyers, National Trial Lawyers

2010

The Top 100 Trial Lawyers, American Trial Lawyers Association

2008

The Top 100 Trial Lawyers, The American Trial Lawyers Association

1999

Member, National Registry of Who's Who

1989

American Jurisprudence Book Award for Advanced Trial Practice, New England School of Law

1989

Listed, Who's Who Among American Law Students, 9th Ed.

1988

Listed, Who's Who Among American Law Students, 8th Ed.

1987

Member, New England Law Review, New England School of Law

Work Experience

2005 - Present

On-Air Legal Analyst, Fox News

1993 - Present

President, Law Offices of Kevin J. Mahoney, PC

1993 - 1993

Associate, Lecomte, Emanuelson, Tick & Doyle

1991 - 1993

Assistant District Attorney, Middlesex County District Attorney's Office

1989 - 1990

Judicial Law Clerk, Connecticut Superior Court

Associations

2006 - Present

American Bar Association

Member

1997 - Present

National Association of Criminal Defense Lawyers

Life Member

1997 - Present

Massachusetts Association of Criminal Defense Lawyers

Member

Sample of Legal Cases

Commonwealth v. F.S.

Not Guilty

Commonwealth v. DM

Not Guilty

Commonwealth v. B.M.

Not Guilty

Commonwealth vs. S.L.

Not Guilty

Commonwealth vs. J.R.

Dismissed

Commonwealth vs. J.R.

Dismissed, Not Guilty

Commonwealth vs. D.D.

Not Guilty

Commonwealth vs. D.D

Not Guilty

Commonwealth vs. W.T.

Not Guilty

Commonwealth vs. J.K.

Not Guilty

Commonwealth vs. M.P.F.

Not Guilty

Commonwealth vs. L.B.

Not Guilty

Commonwealth vs. J.R.

Not Guilty

Commonwealth vs. Matthew Lavoi

Not Guilty

Commonwealth vs. T.W.

Not Guilty

Commonwealth vs. John Doe

Not Guilty, Guilty

Commonwealth vs. J. M.

Not Guilty

Commonwealth vs. Ming Chen

Not Guilty

Commonwealth vs. Herman Medeiros

Not Guilty

Commonwealth vs. Corey M.

Dismissed

Commonwealth vs. Doug W.

Not Guilty

Commonwealth vs. Dion D.

Dismissed

Commonwealth vs. Gregory W.

Not Guilty

Commonwealth vs. Ed T.

Not Guilty

Commonwealth vs. John B.

Pled, Dismissed

Commonwealth vs. John Merlino

Not Guilty

Commonwealth vs. Heriberto T.

Not Guilty

Commonwealth vs. Cheryl C.

Not Guilty

Commonwealth vs. Marianne S.

Not Guilty

Commonwealth vs. Michael D.

Not Guilty, Guilty

Commonwealth vs. Deborah R.

Not Guilty, Guilty

Commonwealth vs. Raymond H.

Not Guilty

Commonwealth vs. William J. T.

Not Guilty

Commonwealth vs. George R.

Not Guilty

Commonwealth vs. James W.

Not Guilty

Commonwealth vs. Heriberto T.

Not Guilty

Commonwealth vs. Aldaberto O.

Not Guilty

Commonwealth vs. Edwin M.

Not Guilty

Commonwealth vs. Eliot M.

Not Guilty, Hung

Commonwealth vs. Robert R.

Guilty

Commonwealth vs. Michael K.

Not Guilty

Commonwealth vs. Terry K.

Guilty

Commonwealth vs. Gary B.

Not Guilty, Dismissed

Commonwealth vs. Andrew T.

Guilty

Commonwealth vs. Mark W.

Not Guilty

Commonwealth vs. Gary S.

Not Guilty

Commonwealth v. Edwin O.

Guilty

Mahoney Wins Verdict of $385,000.00

Verdict for Plaintiff of $385,000.00

See More Legal Cases

Education

1989

New England School of Law

JD - Juris Doctor

1986

University of Massachusetts, Amherst

BA - Bachelor of Arts

Speaking Engagements

2011

Inaugural Conference

Cross-Examination

2008

Greater Boston, with Emily Rooney

Mahoney discusses the trial of Joseph Nee, who allegedly masterminded a Columbine style attack on Marshfield High School.

2007

WCVB

WCVB interviews Mahoney outside Framingham District Court following client’s arraignment on charge of motor vehicle homicide.

2007

Fox News Live

Mahoney analyzes developments in Duke rape case.

2007

Fox News Live

Mahoney analyzes three recent 1st Amendment cases pending before the Supreme Court.

2007

Fox News Live

Mahoney comments on prosecution’s forensic evidence against Phil Spector

2007

Fox News Live

Mahoney provides three hours of on-air coverage of breaking news on Bobby Cutts, Jr. arrest for the murder of Jessie Davis.

2007

Fox News Live

Mahoney analyzes prosecution’s case against Phil Spector.

2007

Fox & Friends

Mahoney discusses prosecutorial immunity from civil lawsuits with morning show in aftermath of dismissal of Duke Lacrosse rape charges.

2006

Fox News Live

Mahoney comments on Mary Winkler murder case

2006

Fox News Live

Mahoney discusses preferential treatment of Patrick Kennedy in OUI accident.

2006

Fox News Live

Mahoney analyzes Duke rape case.

2006

Fox News Live

Mahoney discusses Duke rape case.

2006

Fox News Live

Mahoney analyzes Duke rape case.

2006

Fox News Live

Mahoney analyzes Duke rape case.

2006

Fox News Live

Mahoney analyzes Duke rape case.

2006

Fox News Live

Mahoney discusses Duke rape case.

2006

Fox News Live

Mahoney comments on Duke rape case.

2006

Fox News Live

Mahoney examines Secret Service involvement in Angelina Jolie and Brad Pitt stolen baby photographs

2006

Fox News Live

Mahoney comments on JonBenet Ramsey murder investigation.

2006

CNN/Nancy Grace

Mahoney defends Attorney Elliot Weinstein’s handling of Neil Entwistle’s murder case.

2004

Forensic Files

CourtTV’s Forensic Files airs “Dessert Served Cold,” chronicling Mahoney’s successful defense of Christina Martin, dubbed the “Jell-O Murderer” by the national press.

2004

CourtTV’s Catherine Crier Live

CourtTV’s Catherine Crier Live. Outside the Cambridge Superior Court, Mahoney discusses the prosecution’s case against Alexander Pring-Wilson, accused of stabbing victim to death.

2004

CNN

CNN interviews Mahoney on case against Martha Stewart.

Publications

2018

James Publishing publication The Title IX Sexual Harassment Handbook

2008

Relentless Criminal Cross-Examination Relentless Criminal Cross-Examination

1990

New England Law Review United States vs. Stanley, Has the Feres Doctrine Become a Grant of Absolute Immunity?

Languages

Spanish

Portuguese

Armenian

Activity

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