University of Delaware 1983-1987. Mark worked with Larry Hogan and Associates from 1987 to 1993. Mark worked part-time and full-time in the restaurant industry from 1978 to 2003. He is an owner of Sheehan Insurance Group with his brother Pat Sheehan. Sheehan Insurance Group (1978 to Present) is a full service insurance agency with 30 employees and is located in Haymarket Virginia. Mark and Pat Sheehan worked for the agency in the 1990's and purchased the agency in 2001. Sheehan Insurance is licensed in all 50 States and specializes in all types of Business Insurance. Mark met his wife Lauren Marie Sileo in 2008. She grew up in Vienna Virginia, is a Juilliard Graduate and plays flute with several orchestras including the Baltimore Symphony Orchestra. Mark and Lauren were married in 2010 and currently live in Gainesville Virginia with their cats Lucy and Mozart