Waldbaum & Dunn, ESQ. Massachusetts OUI, DUI, DWI
Drunk Driving
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Jos. Waldbaum, top OUI lawyer in Cambridge, MA

Joseph Waldbaum has handled approximately 4,000 OUI cases in over 60 Massachusetts courts. He has represented defendants on cases ranging from speeding tickets to first degree murder where his client was acquitted.  He is a magna cum laude graduate of the Massachusetts School of Law and was valedictorian of his class. He also completed the National Criminal Defense College in Macon, GA. His practice is now limited to OUI defense.

He has been an active member of the National College for DUI Defense for over twenty years, regularly attending their seminars. He is also a member of the DUI Lawyers of America and the author of a law review article entitled DNA Databanks in Massachusetts: Will the Massachusetts Declaration of Rights Provide the Nation's First Successful Constitutional Challenge. This was published by the Journal of Law and Social Challenges.  He was chosen Chairperson by Massachusetts Continuing Legal Education for a seminar entitled: Driverless Cars: Criminal and Civil Liability held in 2017 in Boston. In 2020, he was admitted as a member of the Bar of the United States Supreme Court. In 2022, Harvard Law School requested him to serve as a judge in their moot court competiton for first year law students.

A former amateur boxer, he brings the skills he used winning second place in a New York city boxing tournament to the courtroom. Except now, he is no longer satisfied with second place.

Chief associate James Dunn

Chief associate James Dunn graduated with honors from Suffolk University Law School, including Dean’s list and the distinguished oral advocate award.  

He has practiced criminal defense since 2009 in over seventy courts and administrative agencies.  He has handled approximately 500 cases including successfully defending clients against charges of first degree murder.

James now focuses entirely on OUI defense, RMV and Board of Appeals hearings and is an active member of The National College for DUI Defense. He assisted in research during the state-wide challenge to the use of the Drager Alcotest 9510 breathalyzer ultimately revealing that machines certified during a certain time period were scientifically unreliable. He completed the two-week 2019 National Criminal Defense College for post-graduate training.

Our clients have said:

  • James was absolutely amazing. He literally had the court stunned. I can tell you he truly cares. I can't believe I'm getting a second chance opportunity.
  • He takes the time to explain everything step by step, detail by detail. 
  • Very professional and kind. A big help.
  • Mr. Dunn did a great job and made things a lot easier for us.
  • The kindnesses he extends makes a frightening event much less devastating.
  • He would have made a good doctor as well. 
  • Mr. Dunn was a huge asset and did a great job with my 1st offense OUI.  He is very friendly and very sincere. He went above and beyond getting my license back and spent over half a day with me at the RMV until they gave it back to me. He was very organized and knew just what to say to the hearings officer and court personnel. He is a hardworking, honest personable lawyer.  
  • I so appreciate all that you did on my behalf. Most importantly, I appreciate your kind and compassionate ways. Combined with your highly skilled and professional manner, I believe all were a reason for our great success.

Continuing Legal Education

12/7/2019 Trial Skills Workshop DUIDLA – DUI Defense Lawyers Association; Indianapolis, IN
12/4 - 12/5/2019 Dodd & Dodd Trial Skill Clinic Indianapolis, IN
10/28/2019 Handling OUI Cases in Massachusetts
MCLE – Massachusetts Continuing Legal Education; Boston, MA
6/16 - 6/29/2019 Trial Practice Institute
NCDC – National Criminal Defense College; Bristol, RI
3/10/2018 Trial Skills Workshop
DUIDLA – DUI Defense Lawyers Association; Columbus, OH
6/31 - 7/2/2017 Trial Skills NCDD – National College of DUI Defense; Jackson, MS
5/18/2017 Breath Testing Consolidated Litigation Social Law Library; Boston, MA
7/21 - 7/23/2016 DUI Defense NCDD – National College of DUI Defense; Cambridge, MA
7/11 - 7/15/2016 Trial Advocacy Workshop MCLE – Massachusetts Continuing Legal Education; Boston, MA
7/8/2016 Dodd Cross Examination MCLE – Massachusetts Continuing Legal Education; Boston, MA
10/6/2015 Show Cause Hearings MCLE – Massachusetts Continuing Legal Education; Boston, MA
3/18/2014 OUI Seminar Essex County Bar Association; Middleton, MA
5/1/2013 OUI Seminar Social Law Library; Boston, MA
3/1/2013 Handling OUI Cases in Massachusetts MCLE – Massachusetts Continuing Legal Education; Boston, MA

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    Jos. Waldbaum, top OUI lawyer in Cambridge, MA Chart: Won 75% of Our Trials Chief associate James Dunn