Overview
Representative Matters
Insights
Awards

Colleen represents clients in white collar criminal matters, internal investigations, and securities enforcement actions across various industries, including health care, pharmaceuticals, e-commerce, nuclear, and financial services. She defends clients facing U.S. Department of Justice (DOJ), Securities and Exchange Commission (SEC), and state attorneys general offices investigations and enforcement matters related to allegations of fraud and corruption.

Colleen has extensive experience advising clients on the False Claims Act (FCA), including navigating past enforcement actions, investigating alleged misconduct, and developing solutions for resolution. She is also well versed in conducting and managing internal investigations for clients on sensitive issues and counseling clients on strategic compliance-related solutions.

Before attending law school, Colleen worked at the Manhattan District Attorney’s Office in the Trial Bureau as a trial preparation assistant. During her two years there, she investigated a range of cases from identity theft to murders, assisted prosecutors in multiple homicide and sexual assault trials, and collaborated with prosecutors on numerous cases from arrest through sentencing.

  • Routinely represents companies in enforcement actions brought by the SEC, DOJ, and the Massachusetts Attorney General’s Office involving allegations such as insider trading, securities fraud, money laundering, and financial fraud.
  • Represents a major health care company during a state attorney general investigation concerning False Claims Act allegations made by a whistleblower.
  • Led an independent investigation into claims of sexual misconduct and discrimination at a consulting firm.
  • Represented an investment banking firm in an investigation by the SEC involving allegations of violations of federal securities laws, leading to no charges filed against the company.
  • Defended a CEO in a criminal case initiated by the DOJ concerning fraud allegations, including tax evasion, wire fraud, and money laundering.
  • Represented a pharmaceutical company in connection with an indictment brought by a grand jury, civil lawsuit joined by the DOJ, and Federal Trade Commission (FTC) investigation involving allegations of wire fraud, mail fraud, and health care fraud, leading to an agreement with the DOJ, FTC, and U.S. state attorneys general to resolve criminal charges and civil complaints.
  • Best Lawyers in America®: Ones to Watch: Commercial Litigation (2026), Criminal Defense: White-Collar (2026), Health Care Law (2026)

Colleen represents clients in white collar criminal matters, internal investigations, and securities enforcement actions across various industries, including health care, pharmaceuticals, e-commerce, nuclear, and financial services. She defends clients facing U.S. Department of Justice (DOJ), Securities and Exchange Commission (SEC), and state attorneys general offices investigations and enforcement matters related to allegations of fraud and corruption.

Colleen has extensive experience advising clients on the False Claims Act (FCA), including navigating past enforcement actions, investigating alleged misconduct, and developing solutions for resolution. She is also well versed in conducting and managing internal investigations for clients on sensitive issues and counseling clients on strategic compliance-related solutions.

Before attending law school, Colleen worked at the Manhattan District Attorney’s Office in the Trial Bureau as a trial preparation assistant. During her two years there, she investigated a range of cases from identity theft to murders, assisted prosecutors in multiple homicide and sexual assault trials, and collaborated with prosecutors on numerous cases from arrest through sentencing.

  • Routinely represents companies in enforcement actions brought by the SEC, DOJ, and the Massachusetts Attorney General’s Office involving allegations such as insider trading, securities fraud, money laundering, and financial fraud.
  • Represents a major health care company during a state attorney general investigation concerning False Claims Act allegations made by a whistleblower.
  • Led an independent investigation into claims of sexual misconduct and discrimination at a consulting firm.
  • Represented an investment banking firm in an investigation by the SEC involving allegations of violations of federal securities laws, leading to no charges filed against the company.
  • Defended a CEO in a criminal case initiated by the DOJ concerning fraud allegations, including tax evasion, wire fraud, and money laundering.
  • Represented a pharmaceutical company in connection with an indictment brought by a grand jury, civil lawsuit joined by the DOJ, and Federal Trade Commission (FTC) investigation involving allegations of wire fraud, mail fraud, and health care fraud, leading to an agreement with the DOJ, FTC, and U.S. state attorneys general to resolve criminal charges and civil complaints.
  • Best Lawyers in America®: Ones to Watch: Commercial Litigation (2026), Criminal Defense: White-Collar (2026), Health Care Law (2026)
  • Member, Duke Boston Women’s Forum
  • Member, Boston Bar Association, Senior Associates Forum Committee
  • Member, Women’s White Collar Defense Association
  • Legal intern, U.S. Attorney’s Office, Northern District of Illinois, 2017
  • Trial preparation assistant, New York County District Attorney’s Office, 2014-2016
  • Intern, Albany County Department of Law, 2013

Education

  • University of Notre Dame the Law School, J.D., magna cum laude, Dean’s Circle fellow, 2019, executive online editor, Notre Dame Law Review; Notre Dame Moot Court Board; recipient, A. Harold Weber Moot Court Competition Award; recipient, Faculty Award for Excellence in Deposition Skills and Medical Malpractice
  • Duke University, B.A., 2014, psychology and women’s studies, Dean’s list

Bar Admissions

  • Massachusetts
  • New York

Court Admissions

  • U.S. District Court, District of Massachusetts
  • U.S. District Court, Southern District of New York
  • U.S. District Court, Eastern District of New York
  • U.S. District Court, Northern District of New York
  • U.S. District Court, Western District of New York