David P. Mason

Counsel || Boston

Mr. Mason provides employment law counseling and litigation services to clients that include businesses of all sizes (ranging from start-ups to multinational corporations), higher education institutions, and non-profits. He regularly litigates claims involving employees or former employees in federal and state courts and before federal and state fair employment practices agencies. Mr. Mason also has extensive experience litigating complex cases before arbitral bodies such as the Financial Industry Regulatory Authority (“FINRA”) and the American Arbitration Association. His litigation expertise includes federal and state discrimination and harassment claims, wage and hour claims, disputes over alleged violations of non-competition, non-solicitation and confidentiality restrictions and related business torts, complex business disputes, and disputes about corporate governance. He also has assisted clients in conducting internal investigations and responding to governmental investigations.

Mr. Mason also counsels clients to ensure legal compliance and prevention of disputes. He has addressed such matters as training and counseling aimed at avoiding discrimination and harassment in the workplace, properly accommodating disabilities and administering leaves, and wage and hour law compliance.

Mr. Mason has developed an expertise in data privacy and helps clients comply with the myriad federal, state, and international laws and regulations concerning data protection and breach notification. He advises clients concerning data security planning and policies to avoid potential loss of sensitive data, and assists clients in meeting their notification obligations if a data breach occurs.

Before joining Ogletree Deakins, Mr. Mason practiced employment law and litigation at a major national law firm and a boutique litigation firm in the Boston area. Mr. Mason also served as a Special Assistant District Attorney in the Middlesex County District Attorney’s Office, handling a diverse and large criminal caseload. He represented the Commonwealth of Massachusetts daily in trial courts, including many trials and evidentiary hearings. His service after law school as a law clerk to the Honorable George A. O’Toole, Jr. in the U.S. District Court, District of Massachusetts, gives Mr. Mason an additional unique insight into the litigation process.

Learn more about David P. Mason

Example Litigation Matters:

Example Counseling Matters:


Admittance to Practice

Professional Activities

  • Boston Bar Association (Labor & Employment Section; previous member of Steering Committee)
  • Massachusetts Bar Association

Insights by David P. Mason