Margo is a former international level artistic swimmer and is now a member of the FINA Bureau (Governing Board) with the portfolio of sport medicine. She is also the Chair of the ASOIF Medical and Scientific Group and is a member of the IOC Medical Commission Games Group. Her work in anti-doping also includes 20 years as the Canadian Centre for Ethics in Sport (Canadian NADO) TUEC vice chair. She works internationally in anti-doping as a member of the World Rugby Anti-Doping Advisory Committee, on the TUEC at the Olympic Games and as chair of the TUEC at the Youth Olympic Games for the ITA in Buenos Aires, 2018.