[4] After completing his university studies in Europe, Chancy returned to Haiti and taught at the Université d'État d'Haïti as well as Toussaint Louverture High School.
[6][3] In parallel to his educational activities, Chancy was also engaged in syndicalism, and he was one of the founding members of Haiti's national secondary school teachers' union, UNMES.
[7][4] In Canada, Chancy continued his work as an educator, teaching philosophy at Cégep Édouard-Montpetit from 1970 until 1985 and lecturing at the Université du Québec à Montréal from 1973 until 1977.
"[8] His work on this committee led to the "Chancy Report," which introduced the concept of intercultural education for the first time in the province.
[9] He also continued his trade unionist work, including through the 1974 International Conference of Worker Solidarity, alongside Michel Chartrand.