William C. Flanagan was raised in Chicopee, Massachusetts. Bill received his Bachelor's degree from the College of the Holy Cross and his law degree from Georgetown University Law Center, where he was a member of its Law Review. Bill's long-term association with Georgetown Law School includes stints as an adjunct professor on the law of evidence and as a member of its Board of Overseers.
After service as an officer in the U.S. Navy, Bill returned to Western Massachusetts and developed a particular interest in trial work. Bill became the Public Defender for the counties of Hampden, Hampshire, Berkshire and Franklin, which encompasses all of Western Massachusetts, and tried hundreds of serious felony cases as a very young attorney. He joined Jim Egan and expanded into civil litigation.
Bill tried cases for the Firm in all of the New England states and several jurisdictions outside of New England. He developed a reputation as a skilled advocate and in 1980 became the very first lawyer in Massachusetts certified as both a civil and criminal trial advocate by the National Board of Trial Advocacy. As further recognition of his trial skills, Bill was asked to author the volume in Trial Advocacy in the Massachusetts Practice Series. His treatise is found in any complete law library in Massachusetts.
An active member of the Springfield civic community, Bill served as Solicitor for the City of Springfield, the County Attorney for Hampden County, and a member of the Springfield Police Commission. On a statewide level, he was a member and Chairman of the Massachusetts Defenders Committee, the vehicle by which counsel was provided to indigent defendants throughout Massachusetts. In addition, Bill was actively involved with several nonprofits throughout Western Massachusetts. Bill now serves the Firm in a Senior Counsel status.
Two of Bill's six daughters are members of the Massachusetts Bar.