Folco began her career as a lecturer in Jamaica and Australia, and as a politician served on a number of diplomatic or quasi-diplomatic foreign missions: Algeria, Timor Este, Haiti, Central African Republic, Republic of Congo, Kuwait, Côte d'Ivoire, and Chiapas (Mexico).
During her time in Parliament Folco has held several leadership roles that have focused on immigration and women: elected Vice-chair of the Permanent Committee on Immigration, Chair of the Liberal Caucus on immigration, Co-chair Women's Day at the Liberal Party National Congresses 2003 and 1994.