John Mastoras

Practice Areas

John Mastoras is a senior partner in our Canadian employment and labour law group. He is known to clients as a passionate and dedicated advocate and business partner who provides innovative and practical advice.

John is frequently called upon to litigate highly contentious matters such as disruptive labour disputes and workplace mental health issues, and acts exclusively for employers in the broader area of labour and employment law. He regularly litigates and provides strategic advice in connection with labour arbitrations, labour relations board disputes, human rights proceedings, occupational health and safety charges, workers' compensation, labour injunctions and common law employment actions. His practice spans union and non-union workplaces for both federally and provincially regulated employers.