He was a Liberal member of the Legislative Assembly of Ontario from 1995 to 2018 who represented the ridings of Yorkview and York West.
Sergio attended technical school in Italy, and worked as a real estate broker after moving to Canada.
He also served on the Metro Toronto Council from 1985 to 1988, and was a member of North York's Planning Board Committee for fourteen years.
[1] The Progressive Conservatives won the election, and Sergio joined 29 other Liberals in the official opposition.
In the 1999 provincial election, Sergio was re-elected in the new riding of York West by more than 10,000 votes over his nearest opponent.