He is a partner at Finnegan, Underwood, Ryan & Tierney.
David was a member of the Boston School Committee from 1975 to 1979 and served as its President from 1978 to 1979.
David was a candidate for Mayor of Boston in 1979, finishing fourth out of six candidates with 14.59% of the vote.
He ran again in 1983, finishing in third place with 24.99%.
David began his media career in 1979 as host of The Dave Finnegan Show on WBZ Radio.
He subsequently hosted Weekend with Dave Finnegan on WNAC-TV.
David gave up both of his shows to run for Mayor in 1983.
David is the brother-in-law of astronaut Michael Collins and the uncle of actress Kate Collins.
He is a graduate of Stonehill College (B.A.), Boston University School of Law (J.D.), and Harvard University (A.L.M.).
David died at age 74 in October 2015.