Mireille Khoraych

Mireille Mortimer

Lawyer & Workplace Investigator

Mireille Mortimer (neé Khoraych) is an experienced labour and employment lawyer having previously practiced at a top-tier human resources law firm in Canada for 10 years. Mireille’s expertise is in advising on the varied and complex issues that arise throughout the employment lifecycle. From recruitment to onboarding, from managing day to day issues to employee departures and post-employment issues, Mireille integrates legal requirements with practical considerations in proving strategic, solution-focused advice to her clients.

Mireille also has in-house experience, having held positions with both an international financial institution and an international integrated support services company advising internally on all their human resources and labour relations matters.

Mireille has appeared before human rights and employment related administrative tribunals and labour arbitrators, and at all levels of court in Ontario, including as lead counsel at the Ontario Court of Appeal.

Mireille places an emphasis on developing strong client relationships, being a trusted advisor and meeting and exceeding client expectations for quality of service and legal advice

Mireille’s experience includes advising national and international clients on the full spectrum of issues that arise in the employment relationship, including under statute, common law, and contract law, employment related and other statutory and regulatory requirements, attendance and disability management, workplace privacy, responding to labour organizing, human rights, accommodation, wrongful competition, performance management, workplace harassment, health and safety, hiring and termination requirements and human resources best practices.

Representative Work

  • Completed investigations on behalf of a provincial privacy commissioner into alleged breaches of applicable provincial privacy law, consisting of gathering evidence from all relevant parties, making findings of fact, making determinations of whether the privacy statue had been breached and issuing written decisions setting out the conclusions and supporting reasons.
  • Engaged by a municipality to conduct a large-scale investigation into activities taking place within a seasonal work group, which included 15 recommendations submitted to and adopted by city council.
  • Successfully defended against a wrongful dismissal action claiming that the plaintiff was an indefinite employee; successfully argued that the plaintiff was on a series of fixed-terms contract and not entitled to notice of termination.
  • Successfully obtained an order for greater than partial indemnity costs due to the plaintiff’s conduct in the proceeding.
  • Successfully obtained preliminary dismissals of human rights applications on the basis of the applications having no reasonable prospect of success, or otherwise not falling within the Tribunal’s jurisdiction.
  • Before a panel of the Court of Appeal, successfully obtained a preliminary dismissal of an appeal on jurisdictional grounds and successfully defended against a request to transfer the appeal to the proper jurisdiction.

Professional and Community Affiliations

  • Association of Workplace Investigators (Canada)
  • Ontario Bar Association
  • Canadian Bar Association
  • Law Society of Upper Canada (Ontario)
  • Women’s Executive Network
  • Women’s Law Association of Ontario
  • Alternatives East York Mental Health Counseling Services, Former Director


  • University of Toronto, J.D., 2007
  • University of Toronto, Hon. B.Sc., With Distinction, 2003