 While in public service, LeMieux managed more than 400 lawyers as Deputy Attorney General, led compact negotiations with the Seminole Tribe of Florida as Chief of Staff to the Governor, and supervised all aspects of the Executive Office of the Governor including the Governor's legislative agenda, policy initiatives and the management of the agencies that report to the Governor.Shortly before leaving public office, he took on the role as Governor Crist's liaison to the Council of 100, a non-partisan group of high-powered business leaders, noting that Crist wanted him to work with the council to find ways of helping businesses.In January 2008, LeMieux returned to the law firm of Gunster Yoakley, residing in both its Fort Lauderdale office and its newer Tallahassee office.