Eoin P. Beirne

Associate vCard


  • Brooklyn Law School (JD, cum laude)
  • Trinity College (BA, Economics)

Bar Admissions

  • Massachusetts
  • United States Court of Appeals for the First Circuit
  • United States District Court for the District of Massachusetts

Eoin is a litigator specializing in white collar criminal investigations, regulatory enforcement proceedings as well as corporate and securities litigation and internal investigations. He has tried cases in federal and state courts, and has appeared on behalf of his clients before the SEC, FINRA and other regulatory and enforcement bodies.

During law school, Eoin served as a student assistant district attorney, was a member of the Moot Court Executive Board, was elected to the Order of Barristers and interned for Judge Reena Raggi in the Eastern District of New York.

Eoin is an avid fly fisher and skier and serves on the boards of several organizations dedicated to the conservation of sport fish and their habitat.

Representative Matters   

  • Judgment of acquittal granted by judge following the close of the government’s evidence in a federal criminal jury trial for wire fraud and money laundering
  • Conducted a comprehensive internal investigation into allegations of fraud by a whistleblower at a military contractor
  • Conducted an electronic investigation following allegations of wrongdoing at a quasi-governmental organization
  • Part of the trial team that won a complete acquittal following a four-week federal criminal trial
  • Drafted memoranda of law that resulted in a no-jail sentence in a federal election fraud case following entry into plea agreement
  • Drafted materials that resulted in no charges against an individual investigated for insider trading

Recognitions & Awards

  • Massachusetts Super Lawyers: Rising Star – Criminal Defense: White Collar (2013)

Professional & Community Involvement

  • Member, Boston Bar Association
  • Board Member, Massachusetts Association of Criminal Defense Lawyers (MACDL)
  • Member, American Bar Association’s Public Corruption and Extortion Subcommittee and the Criminal E-Discovery Taskforce