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 6 - 10 of 12 reviews | General Knowledge

Posted by Jim | March 05, 2015 | Criminal Defense

The Best Attorney for Your Darkest Moment!

Attorney Mahoney delivered for me (and my family who needs me) the most professional and relentless defense that I could have ever asked for. For people not accustomed to being caught in the snare of a criminal complaint, it is extremely frightening. The outcome can be time-consuming, mentally draini...ng and entirely uncertain! Attorney Mahoney's expertise, experience and aggressive covering of my case from every angle resulted in a favorable dismissal of my charges. Had my case gone to trial, Attorney Mahoney's proven track record for trial wins speaks for itself. There is no one better! For your darkest moment, Attorney Mahoney is your best choice by far.

Posted by Juliana | July 20, 2014 | Lawsuits & Disputes

The BEST out there!

I strongly recommend Mr. Mahoney as a lawyer.He is trustworthy,efficient and knows exactly what he's doing. I felt confident with his performance in court and his knowledge .On top of all,we became close friends.A person that goes above and beyond for his clients,can only be considered a good friend... . Going thru a stressful and scary time and finding relief on a professional that literally saved me from the worst,was just amazing.I recommend to all my friends and any person in desperate need of a competent lawyer!

Posted by anonymous | March 24, 2014 | Criminal Defense

Top of the line attorney

Mr. Mahoney is a top of the line, highly knowledgeable and well-seasoned lawyer. Throughout the duration of my case he was readily available and considered every avenue to help me achieve the best possible results. He really took a personal interest in my case and truly showed that he was doing the ...absolute most he could to guarantee I received the most favorable disposition possible. I found Mr. Mahoney to be a very honest and hard working lawyer who is committed to giving his utmost effort to ensure his clients receive the best outcomes. As a result of his personal commitment and dedication to my case, I believe I received an amazingly favorable outcome. I would recommend his legal services for anyone who needs a serious, committed lawyer. Due to his efforts I dodged a huge bullet. To this day, I consider him a friend and can vouch for his legal services to anyone who needs an honest and hardworking criminal defense representative.

Posted by Daniel | January 04, 2013 | Criminal Defense

Need An Attorney To Save Your Life? Kevin J Mahoney is YOUR Best Option

My family and I hired Attorney Kevin J. Mahoney to defend me for four felony breaking and entering in the nighttime charges. Through Kevins relentless and extraordinary knowledge of the law, perseverance, as well as, his diligence and his ability to skilfuly negotiat, He was able to convince the As...istant District Attorney, the judge, and the victims to all give me another chance and prove that I am both a good person and I am able to change my life around for the better. Against all odds, the court agreed to set jail time aside and give me pretrial probation for a few years, pay restitution, and perform community service. Let me be frank, hard prison time was surely in my future. Now this would've been possible without the extreme competence, care, understanding, and perseverance that Attorney Mahoney placed on my case. Kevin saved my life in my future. My family and I will forever be grateful to him. I strongly recommend attorney Kevin Mahoney to anyone who is looking for a strong, dedicated, and skilled attorney. If you are looking to get the best possible outcome from a very difficult situation he is your man. Thank you Attorney Mahoney!

Posted by Daniel | August 21, 2011 | Criminal Defense

Saved my life

Kevin represented me In a very serious case that was drawn out over a very long time. He was worth Every penny. Spent Hundreds of hours on my case going threw every little detail. Then when Trial came he was more prepared than the DA. His cross exaination won the case (besides me being innocent) grea...t lawyer, great guy. -DM

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
Joan Marie Legraw headshot
Joan Legraw

Litigation lawyer

David R Yannetti headshot
David Yannetti

Criminal defense lawyer

David James Reger Ionson headshot
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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Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution