About McMahon Molyneaux Henriquez Labour & Employment Lawyers

McMahon Molyneaux Henriquez Labour & Employment Lawyers is a Hamilton firm that represents unions, workers, and human rights complainants across southwestern Ontario. It traces back to 2004, when Joanne McMahon and Jim Fyshe relocated their union-side labour and employment law practices from Toronto to Hamilton and opened Fyshe McMahon LLP, which the firm describes as the first of its kind in the Halton, Hamilton, and Niagara region.

Fyshe retired in 2015, and McMahon continued the practice until Sarah Molyneaux and Roberto Henriquez joined in 2020, when the firm took its current name. McMahon retired from litigation in 2022 after more than 30 years of union-side labour law practice and remains with the firm as counsel. The team now includes five lawyers, Molyneaux, Henriquez, Katy O'Rourke, Geoff Cross, and Nadia Ahmed, who handle labour arbitrations, wrongful dismissal and severance claims, workplace harassment and human rights complaints, and education law matters for workers, unions, and employers.

Practice areas

Not listed

In the community

  • Sarah Molyneaux serves on the Ontario Bar Association's Labour and Employment Law Program Planning Committee and belongs to the Canadian Association of Labour Lawyers and the Hamilton Lawyers Association.
  • Molyneaux has done public legal education work with Hamilton's Workers' Action Centre and the Caregivers Action Centre, and provided litigation support through the Justice and Corporate Accountability Project, which assists Indigenous and Latin American anti-mining organizers.
  • Roberto Henriquez belongs to the Canadian Hispanic Bar Association and the Hamilton Lawyers Association.

Good to know

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Where to find them

605 James St N, Suite 200, Hamilton, ON L8L 1J9 · 905-522-0600

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This listing was generated by AI from public sources in September 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on the firm’s own website. Verify licence status in the Law Society of Ontario directory ↗

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