Donegan’s legal career began working with the Board of Bar Overseers. The Board of Bar Overseers and the Office of Bar Counsel are independent administrative bodies established by the Supreme Judicial Court to investigate and prosecute Massachusetts lawyers. While working with the Board of Bar Overseers, Mr. Donegan investigated and assisted in the prosecution of several Massachusetts attorneys brought before the Supreme Judicial Court for discipline.
Attorney Donegan later joined the Middlesex District Attorney’s Office as an Assistant District Attorney where he prosecuted individuals for a wide variety of criminal offenses including violent crimes, drug distribution, and juvenile offenses. He then expanded his trial experience to include civil defense litigation while working as an associate with a mid-size Boston firm. Thereafter he became chief litigation counsel for a Lexington civil defense firm. While representing national corporations against civil claims, he expanded his practice to include criminal defense.