David J. McMorris

Attorney Profile

Top Rated Class Action & Mass Torts Attorney in Boston, MA

Thornton Law Firm LLP
 | One LIncoln St, 25th Floor
Boston, MA 02111
Phone: 617-720-1333
Selected to Super Lawyers: 2004 - 2005, 2007 - 2018
Licensed Since: 1983
Practice Areas:
  • Class Action/Mass Torts: Plaintiff (60%),
  • Personal Injury - General: Plaintiff (20%),
  • Workers' Compensation: Claimant (20%)
Attorney Profile

As a partner attorney with Thornton Law Firm LLP in Boston, Massachusetts, David J. McMorris heads the firm's workplace injury practice, and he also directs all matters associated with health care subrogation. An experience trial attorney, Mr. McMorris represents plaintiff clients in the following practice areas:

  • Workers' compensation
  • Construction and jobsite accidents
  • Mesothelioma and asbestos claims
  • Products liability
  • Personal injury
  • Truck and bus accidents
  • Whistleblower litigation

Mr. McMorris began his legal career in 1983 after obtaining his Juris Doctor, cum laude, from Suffolk University Law School and receiving his license to practice law from the Massachusetts Bar Association. In 1984, the New York State Bar Association admitted him to practice, and he is admitted to practice before the U.S. District Court for the District of Massachusetts, the U.S. Court of Appeals for the 1st Circuit and the U.S. Supreme Court.

Throughout his career, Mr. McMorris has secured several jury verdicts in excess of $1 million in cases involving asbestos and other toxic exposures, construction accidents, lead paint poisoning and defective products. As testament to his extensive knowledge and experience regarding his areas of practice, he has lectured at Boston University School of Law and Tufts University on a variety of legal topics, and, since 1993, he has served as a plaintiff's liaison for the Superior Court of Massachusetts in cases involving asbestos litigation.

In recognition for his professionalism and his dedication to his practice, Mr. McMorris has received several awards and honors over the years, including a "Superb" 10 out of 10 rating from AVVO and an AV Preeminent peer review rating* from Martindale-Hubbell.

*AV®, AV Preeminent®, Martindale-Hubbell Distinguished and Martindale-Hubbell Notable are certification marks used under license in accordance with the Martindale-Hubbell certification procedures, standards and policies. Martindale-Hubbell® is the facilitator of a peer review rating process. Ratings reflect the anonymous opinions of members of the bar and the judiciary. Martindale-Hubbell® Peer Review Rating™ fall into two categories – legal ability and general ethical standards.

Practice Areas
Lawyer Practice Area Pie Chart

Class Action/Mass Torts (60%): Class Actions, Asbestos, Toxic Torts

Personal Injury - General (20%): Motor Vehicle Accidents, Personal Injury - Plaintiff, Wrongful Death, Construction Accident, Trucking Accidents

Workers' Compensation (20%)

Focus Areas

Class Actions, Asbestos, Toxic Torts, Motor Vehicle Accidents, Personal Injury - Plaintiff, Wrongful Death, Construction Accident, Trucking Accidents


Selected to Super Lawyers for 14 yearsbottom-image

Super Lawyers: 2004 - 2005, 2007 - 2018

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About David McMorris

Admitted: 1983, Massachusetts

Professional Webpage: http://www.tenlaw.com/partners/david-j-mcmorris/


  • Rated “AV,” Martindale-Hubbell
  • Highest 10 rating by the lawyer evaluation website avvo.com
  • Million Dollar Advocates Forum, Member
  • Top 100 Trial Lawyers, American Trial Lawyers Association

Bar/Professional Activity:

  • 1988, U.S. Supreme Court
  • 1984, U.S. Court of Appeals, First Circuit
  • 1984, U.S. District Court, District of Massachusetts
  • 1984, New York
  • 1983, Massachusetts
  • American Association for Justice  
  • New York State Bar Association
  • Massachusetts Bar Association

Scholarly Lectures/Writings:

  • Tufts University, Guest Lecturer
  • Boston University Law School, Guest Lecturer

Educational Background:

  • State University of New York, B.S., 1976
Find Me Online
Website - www.tenlaw.com
Office Location for David J. McMorris

One LIncoln St
25th Floor
Boston, MA 02111

Phone: 617-720-1333


David J. McMorris:

Last Updated: 10/1/2018

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