John Mastoras received his MIR degree from the Centre of Industrial Relations and Human Resources in 1984. After completing his LL.B. at Osgoode Hall Law School in 1987, he was called to the Ontario Bar in 1989. Mr. Mastoras acts exclusively for employers in the area of labour relations and employment law. He regularly provides representation and advice in connection with grievance and interest arbitrations, labour relations board disputes, collective bargaining, human rights proceedings, occupational health and safety trials, workers’ compensation, labour injunctions, coroners’ inquests, executive employment contracts and common law employment actions. His practice spans unionized and non-unionized workplaces for both federally and provincially regulated employers.
Mr. Mastoras has negotiated collective agreements in a variety of industries including retail, steel, automotive and manufacturing more generally. He has litigated on behalf of and provided counselling and strategic advice to a broad group of employers and employer associations in the pulp and paper, transportation, steel, automotive, health care, food processing, insurance, retail, longshoring and construction sectors.
Mr. Mastoras is an Adjunct Professor at the University of Toronto ‘s Centre for Industrial Relations and Human Resources. He has authored or co-authored and presented numerous papers relating to arbitration trends, workplace medical issues, criminalization of health and safety laws, collective bargaining negotiations, accommodation of religious observances, privacy rights and other high-profile workplace issues. Mr. Mastoras is also an International Advisor to the Washington D.C. law firm of McGuiness & Yager LLP.