Doreen focuses her practice on white collar criminal defense and internal investigations. Doreen has broad experience representing individuals and companies and specializes in representing clients in federal and state investigations involving whistleblower claims, healthcare fraud litigation, securities litigation and enforcement, forfeiture, and compliance with the USA PATRIOT Act, Bank Secrecy Act and related anti-money laundering requirements. Doreen has handled discovery disputes, evidentiary hearings, oral arguments, and trials. She is a member of Sidley’s White Collar: Government Litigation and Investigations and Securities and Derivatives Enforcement and Regulatory groups.
Prior to joining Sidley, Doreen served as an Assistant United States Attorney at the United States Attorney’s Office for the District of Massachusetts in the Affirmative Civil Enforcement Unit, where she handled qui tam actions and prosecuted healthcare fraud matters involving potential violations of the False Claims Act, Stark Law and anti-kickback statutes. Prior to joining the Affirmative Civil Enforcement Unit, Doreen served in a supervisory capacity as the Chief of the Asset Forfeiture Unit. In that role, Doreen prosecuted civil and criminal asset forfeiture cases involving money laundering, drug trafficking, healthcare fraud and securities violations. During her tenure at the United States Attorney’s Office, Doreen successfully handled several trials as lead counsel and several appeals to the First Circuit. Doreen was also an associate at a global law firm, as well as a law clerk for the Honorable Chief Justice (Ret.) Roderick L. Ireland of the Massachusetts Supreme Judicial Court.
Doreen’s experience and commitment to public service recently earned her the Massachusetts Lawyers Weekly’s 2018 “Top Women of Law” Award, which celebrates outstanding achievements made by exceptional women lawyers. Each year Lawyers Weekly honors women attorneys who have made tremendous professional strides and demonstrated great accomplishments in the legal field, which includes: pro bono, social justice, advocacy and business.
Doreen received both her undergraduate degree, magna cum laude, and graduate degree from The Catholic University of America. Doreen attended Howard University School of Law, where she served as Articles Editor of The Howard SCROLL Social Justice Law Review, participated on the Moot Court Team, and received the CALI Excellence for the Future Award in Jurisprudence, Remedies and Civil Rights Clinic.
Represented financial institution in appellate matter involving unfair trade practices under Chapter 93A.
Represented newspaper to obtain previously sealed testimony of Presidential candidate.
Represented plaintiffs in state and federal courts involving employment termination and disparate impact claims.
Represented broker-dealer firms in various FINRA employment arbitration matters involving employee termination.
Represented broker-dealer firms in various FINRA and SEC investigations relating to regulatory filing requirements.
Massachusetts Lawyers Weekly’s 2018 “Top Women of Law” Award
Political Asylum/Immigration Representation Project, Pro Bono Attorney of the Year Award
“Supreme Court Appears Poised to Extend False Claims Act Statute of Limitations,” with Scott Stein and Alaric R. Smith, International Law Office (May 1, 2019).
“DOJ Nominee Barr Walks Back FCA Stand, But Not Entirely,” with Scott Stein and Naomi Igra, Bloomberg Law (January 24, 2019).
“Trump Pick for AG to Be Scrutinized for Views on False Claims Act Enforcement,” with Scott Stein and Naomi Igra, Bloomberg Law (January 14, 2019).
“First Criminal Charge of U.S. Broker-Dealer for Bank Secrecy Act Violation Highlights Importance of Anti-Money-Laundering Controls,” with Joan M. Loughnane, Michael D. Mann and Paul M. Tyrrell, Thomson Reuters (January 11, 2019).
Assistant United States Attorney, District of Massachusetts (2013-2018)
Supervisory Positions held: Chief, Asset Forfeiture Unit
Associate, Bingham McCutchen, Boston, Massachusetts (2007-2013) Law Clerk, Honorable Roderick L. Ireland, Chief Judge, Massachusetts Supreme Judicial Court (2006-2007)
Admission & Qualifications
Massachusetts State Court
U.S. Court of Appeals, 1st Circuit
U.S. District Court, District of Massachusetts
The Catholic University of America, B.A., 2000, magna cum laude, Politics
The Catholic University of America, M.A., 2000, World Politics
Howard University School of Law, J.D., 2006
Articles Editor, The Howard SCROLL Social Justice Law Review
Charles Hamilton Houston Moot Court Team