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Practice areas


  1. Personal Injury: 24%
    32 years, 100 cases
  2. Class Action: 24%
    32 years, 5 thousand cases
  3. Defective and Dangerous Products: 24%
    32 years, 250 cases
  4. Workers Compensation: 23%
    32 years, 2.5 thousand cases
  5. Mesothelioma & Asbestos: 5%



Contingent (33%)

Attorney endorsements

2 total 

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  • Michael S. Waddington

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


    Michael Waddington Military Law Attorney
    Relationship: Fellow lawyer in community

  • Michael C Shepard

    David is an excellent lawyer, with a great reputation in Massachusetts and beyond for getting consistent results for his clients.


    Michael Shepard Personal Injury Attorney
    Relationship: Fellow lawyer in community

Contact info

Thornton Law Firm, LLP

100 Summer Street, 30th Floor.
Boston, MA, 02110-2106


NYCurrently registered 198403/13/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Preeminent 5.0 out of 5Martindale-Hubbell2015
Best Lawyers in AmericaBest Lawyers in America2015
Top 100 Trial LawyersNational Trial Lawyers Association2015
Super LawyerMassachusetts Super Lawyers2015
New England's Best Lawyers 2011 - 2014Boston Globe2014
Super LawyerBoston Magazine2014
Best Lawyers in AmericaBest Lawyers in America2014
Patron MemberPublic Justice Foundation2014
AV ratingMartindale-Hubbell2014
Top 100 Trial Lawyers, 2008- 2014American Trial Lawyers Association (ATLA)2014
Boston's Best Lawyers 2011 - 2014Boston Globe2014
Million Dollar Advocates Forum, 2007-2014Million Dollar Advocates Forum2014
Best Lawyers in AmericaBest Lawyers in America2013
Super LawyerBoston Magazine2013
Best Lawyers in AmericaBest Lawyers in America2012
Super LawyerBoston Magazine2012
Super LawyerBoston Magazine2011
Best Lawyers in AmericaBest Lawyers in America2011
15 year award for AV "Preeminent" RatingMartindale-Hubbell2011
Best Lawyers in AmericaBest Lawyers in America2010
Super LawyerBoston Magazine2010
Best Lawyers in AmericaBest Lawyers in America2009
Super LawyerBoston Magazine2009
Best Lawyers in AmericaBest Lawyers in America2008
Super LawyerBoston Magazine2008
Work experience
TitleCompany nameDuration
PartnerThornton & Naumes, LLP1982 - Present
Association namePosition nameDuration
American Association for JusticeMember1982 - Present
Massachusetts Bar AssociationMemberN/A
New York State Bar AssociationMemberN/A
Association of Trial Lawyers of AmericaMemberN/A
Legal cases
Case nameOutcome
Graves v. Chen$6.2 million jury verdict
Worker v. Machine Co.$2,6 million settlement
Nicoletti v. GGG$2.65 million jury verdict
See all legal cases 
Publication nameTitleDate
Lead Paint Litigation SeminarProving the Plaintiffs' Case2003
Advanced Workers Compensation in MassachusettsClaimant's Perspective2001
School nameMajorDegreeGraduated
State University of New YorkN/AN/AN/A
Suffolk University Law SchoolLawJD - Juris DoctorN/A
Speaking engagements
Conference nameTitleDate
Developments in Lead Paint LitigationLead Paint Poisoning2007
Plaintiffs' Asbestos Litigation SeminarMass Tort Litigation2004
Plaintiffs' Asbestos Litigation SeminarEthical Considerations in Settlement of Multiple Cases2003
Lead Paint Litigation SeminarProving the lead paint case2003
Advanced Workers Compensation SeminarWorkers Compensation2001
Premises Liability SeminarPremises Liability1990