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About me

Attorney Duncan has been litigating cases for almost a decade, having advocated for countless clients at both the state and federal level. He first attended higher education at the College of the Holy Cross, graduating with a degree in Political Science. Once he was finished with school, he worked as a litigation assistant for a prestigious law firm in New York City. He then went on to obtain his Juris Doctor with Honors from George Washington University Law School, where he was a published Managing Editor of the International Law Review.  During law school Mr. Duncan worked as a legal extern for the Executive Office of the President, General Counsel’s Office, and the United States Department of Justice.  Attorney Duncan offers relentless advocacy and honest counsel for his clients. Call to obtain your free case evaluation. He provides services on a contingency fee basis! 


Languages spoken: English, French

Photos and videos

4469491 1374169716

Practice areas


  1. Personal Injury: 95%
    3 years
  2. Spinal Cord Injury: 5%



Contingent (33-45%)

Payment types:

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Attorney endorsements

1 total 

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  • April N. Bonifatto

    I proudly and excitedly endorse Mr. David T. Duncan. First and foremost, David is one the most professional and respectful attorneys I have worked with and observed. David has a keen ability to understand complex law/facts and distill them into a simple presentation for anyone's understanding - a true talent. David's passion for providing the utmost ethical and superior legal services to any client (with any type of legal issue) never ebbs. Whether you are practicing law on or against David's team, one can always appreciate his professionalism, intellect and relentless pursuance of his clients' goals. Needless to say, David is an excellent attorney and mentor!


    April Bonifatto Personal injury Attorney
    Relationship: Other

Contact info

Duncan Law Firm

6200 Stoneridge Mall Rd
Pleasanton, CA, 94588


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Work experience
TitleCompany nameDuration
FounderDuncan Law Firm2013 - Present
Association namePosition nameDuration
American Association for JusticeAttorney Member2013 - Present
Consumer Attorneys of CaliforniaAttorney Member2013 - Present
Alameda-Contra Costa Trial Lawyers AssociationAttorney Member2013 - Present
Legal cases
Case nameOutcome
Brooks v. ChereshanskyyPolicy Limits Settlement
See all legal cases 
School nameMajorDegreeGraduated
George Washington University National Law CenterLawJD - Juris Doctor2005
College of the Holy CrossPolitical ScienceBA - Bachelor of Arts1999