Shaun M. Donnelly

Shaun M. Donnelly

Senior Associate

Email shaun.donnelly@​

Phone +1 617 371 1009

Fax +1 617 371 1037

Practice groupLitigation, Arbitration, and Employment

Shaun Donnelly handles all phases of civil, criminal, and administrative proceedings. His experience as a former assistant district attorney provides the firm's clients with an insightful, well-rounded approach to case analysis, discovery, investigations, motion practice, negotiations, and trial preparation.

Shaun represents businesses and individuals in white collar criminal and complex civil litigation matters across a variety of industries, including the health care and financial services industries. He works with clients through all stages of litigation and government investigations, including discovery, trial preparation, trials, post-conviction litigation, sentencing, and appeals.

Prior to joining the firm, Shaun served as an assistant district attorney in the Middlesex District Attorney's Office in Massachusetts, where he litigated more than 25 jury trials, 30 bench trials, and countless pretrial motions. He prosecuted a range of cases involving domestic violence, sexual assault, violent assault and battery, larceny, drug distribution, and firearm offenses. He conducted several criminal investigations, one of which used DNA evidence to solve a nearly decade-old breaking-and-entering. During his time as an ADA, Shaun also navigated plea negotiations, evidentiary issues, constitutional challenges, and discovery disputes.

While in law school, Shaun interned with the FBI and the U.S. Attorney's Office, and was a judicial intern for the Honorable O. Rogeriee Thompson on the U.S. Court of Appeals for the First Circuit, where he analyzed a variety of criminal and civil appeals.

Education and admissions


J.D., Boston University School of Law, 2013

B.A., Providence College, magna cum laude, 2007


Boston Bar Association

Bar admissions and qualifications


Court admissions

U.S. District Court, District of Massachusetts

Representative experience

As a prosecutor, worked with law enforcement to investigate motor vehicle crashes involving fatalities and serious injuries to determine appropriate criminal charges.*

Interviewed witnesses and victims of violent crimes and sexual assaults in preparation for trials.*

Secured convictions of numerous criminal defendants charged with offenses involving domestic violence, impaired driving, drug distribution, and firearm offenses.*

Participated on trial team in connection with an insurance coverage claim concerning environmental cleanup costs for a commercial property owner.*

Successfully argued multiple pretrial motions, including motions to suppress in criminal matters.*

Defended indigent clients charged with assault and battery, larceny, and drug offenses at the Boston Municipal Court.*

Successfully argued to dismiss an assault and battery case following thorough crime scene investigation and interviews of multiple witnesses.*

*Matter handled prior to joining Hogan Lovells.

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