Sarah crossley

mediation & workplace investigations

Independent. Objective. Thorough.

Before founding Sarah Crossley Mediation & Workplace Investigations, Sarah practiced exclusively in workplace law – advising, mediating and litigating matters related to employment, labour and human rights matters.

During her years of practice, Sarah was known as trusted advisor and tenacious litigator by her clients and opposing counsel alike. As a result, Sarah’s approach to dispute resolution is practical, creative and effective.

Sarah is also a sought after and trusted workplace investigator. She regularly conducts workplace investigations, independent reviews and/or culture assessments. Sarah is known for her ability to navigate complex and time-sensitive mandates as well as her ability to make those whom she meets feel comfortable speaking with her.

Workplace Investigations

Sarah is regularly retained to conduct workplace investigations as an external, independent investigator on topics such as discrimination, workplace harassment, bullying, sexual harassment and/or assault, and/or general misconduct (including policy violations).

Mediation

Sarah uses a balanced and pragmatic approach to understanding the parties’ underlying interests and will work hard to assist the parties (and their legal counsel) reach a resolution.

More About Sarah

Sarah has been recognized as a leading practitioner in employment, labour and workplace human rights law:

  • Chambers Canada (2018 to 2026), Employment, Labour and Workplace Human Rights – Ontario
  • Canadian Legal Lexpert®Directory (2016 to 2026), Leading Practitioner
  • Lexpert’s Leading 500 Cross Border Lawyers: A Guide to Doing Business in Canada, 2025 and 2026
  • HR Law Canada – 2025 Workplace Investigator of the Year
  • Recognized by Best Lawyers® 2025, Labour and Employment
  • Lexology Index Client Choice Award – Labour, Employment & Benefits 2025
  • Thomson Reuters “Stand-Out Lawyer” (2023 and 2024)
  • Who’s Who Legal, Recommended Lawyer, Labour, Employment and Benefits (2022, – 2025)
  • Elected Fellow of the American College of Labor and Employment Lawyers
  • Included in the inaugural list of counsel at ReferToHer®, which is a list of female lawyers to whom work can be confidently referred to.


Sarah regularly teaches on investigations and has been an instructor at the Osgoode Certificate in HR Law for HR Professionals since 2012.

Expert Workplace Investigator and Certified Mediator. Contact Sarah Crossley for HR investigations and dispute resolution services.

Sarah has been conducting workplace investigations since her call to the Bar in 1999. She is a sought-after speaker and writer on workplace investigations, and  co-authored the inaugural Chambers Guide to Internal Investigations in Canada.