Tim Timothy Dacey malpractice litigation construction antitrust probate arbitration



Tim Dacey is a business litigator representing lawyers and law firms in professional malpractice actions, disciplinary matters, and partnership disputes.

He also represents clients in a wide variety of commercial disputes, including representing owners and design professionals in construction disputes, in both state and federal courts and before arbitration panels.


  • Martindale Hubbell Peer Review Rated AV Preeminent TM
  • Best Lawyers in America® (2011-2024): Legal Malpractice – Defendants
  • Massachusetts Bar Association, Volunteer Recognition Award for service to the Massachusetts Bar Ethics Committee, 2010
  • Massachusetts Super Lawyers, 2004 - 2016, 2020 - 2022


  • Lecturer on Law, Harvard Law School
  • Member, Supreme Judicial Court Standing Advisory Committee on the Rules of Professional Conduct
  • Director and Treasurer, Newton Community Development Foundation
  • Vice Chair, Committee on Professional Ethics, Massachusetts Bar Association
  • Member, Standing Committee on Ethics and Professional Responsibility, American Bar Association, 2005


  • Massachusetts


  • Harvard Law School  (J.D., cum laude, 1969)
  • College of the Holy Cross  (A.B., summa cum laude, 1964)