Ahuntsic-Cartierville borough council explained

The Ahuntsic-Cartierville borough council is the local governing body of Ahuntsic-Cartierville, a borough in the City of Montreal. The council consists of five members: the borough mayor (who also serves as a Montreal city councillor) and the city council representatives for each of the borough's four electoral districts.^[1]

Current members

Borough mayor: Émilie Thuillier (Projet Montréal)
Montreal city councillor, Ahuntsic division: Nathalie Goulet (Projet Montréal)
Montreal city councillor, Bordeaux-Cartierville division: Effie Giannou (Ensemble Montréal)
Montreal city councillor, Saint-Sulpice division: Hadrien Parizeau (Ensemble Montréal)
Montreal city councillor, Sault-au-Récollet division: Jérôme Normand (Projet Montréal)

References

http://election-montreal.qc.ca/cadre-electoral-districts/cadre-electoral/arrondissements/ahuntsic-cartierville.en.html Electoral Process and Districts: Ahuntsic-Cartierville borough