Mark W. Pearlstein concentrates his practice on white-collar criminal defense, the defense of actions brought by the US Securities and Exchange Commission, complex commercial litigation, arbitration and internal investigations. Previously, he was the partner-in-charge of the Boston office and served as head of the Boston Trial Department. Mark is also a member of the Firm-wide Management Committee.

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  • Represented the former chief investment officer of State Street Global Advisers in a suit brought by the Securities and Exchange Commission; following a three-week trial, the client was exonerated completely
  • Appointed by Massachusetts Governor to conduct an independent investigation of a state-run long-term care facility. The ensuing report and its recommendations appear to be contributing to needed improvements at the facility and in its oversight
  • Successfully tried multiple healthcare fraud cases
  • Successfully tried multiple criminal tax cases

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  • The Best Lawyers in America: 2018, 2021 Boston Criminal Defense: White-Collar “Lawyer of the Year”
  • The Best Lawyers in America: Bet-the-Company Litigation, Commercial Litigation and Criminal Defense: White Collar, 2022
  • Chambers USA, 2004 to 2021, Litigation: White-Collar Crime & Government Investigations (Band 1)
  • Legal 500 US, 2019 and 2021

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Harvard Law School, JD, cum laude, 1983
University of Michigan, AB, with highest distinction, 1979


Courts / Agencies
US Court of Appeals for the First Circuit
US Court of Appeals for the District of Columbia Circuit
US Tax Court
US District Court for the District of Massachusetts

Mark W. Pearlstein

Insights & Events / Media

Massachusetts Government / June 25, 2020

Boston, Massachusetts / Speaking Engagements / January 16, 2019

Independence Institute / September 25, 2017

Washington Examiner / May 22, 2017