About SLG
SLG is a multidisciplinary partnership founded in 2025. We share a commitment to providing quality, efficient, transparent service to our clients. We are also committed to a person-centred and trauma-informed practice and to providing accessible and culturally humble services to clients and file participants. Our combined expertise allows us to manage intake and workflow effectively to ensure consistency in our timelines and excellence in our work product.
SLG is based in Oakville and Toronto, Ontario, the traditional land of the Mississaugas of the Credit, the Huron-Wendat, and the Seneca, and we also work occasionally in the territories of other Indigenous Nations. We acknowledge and thank these Nations for their ongoing stewardship of this land.
Courtney Grzybowski, LL.M, LL.B, Q.Med, PI
Courtney is a sensitive and committed lawyer, regulatory and workplace investigator, and mediator. She approaches each matter with curiosity and a commitment to efficiency, quality, and thoroughness. Courtney’s diverse experience has allowed her to collaborate with stakeholders, and to navigate complex administrative, privacy, and procedural landscapes.
Prior to founding SLG, Courtney spent seven years providing strategic managerial oversight to regulatory and workplace investigations in addition to maintaining her own investigative and mediation caseload. She previously held several senior positions with multiple health regulatory Colleges, including Director of Professional Conduct at the College of Audiologists and Speech-Language Pathologists of Ontario, and Manager of Professional Conduct at the College of Respiratory Therapists of Ontario. Courtney also practised labour and employment law at two prominent Toronto labour and employment law firms, where she represented clients before the Ontario Labour Relations Board, the Workplace Safety and Insurance Tribunal, the Ontario Court of Justice, and the Ontario Superior Court of Justice. Courtney has also acted as a mediator for the Ontario College of Pharmacists and the College of Midwives of Ontario, and as a case management facilitator for the College of Early Childhood Educators.
Courtney holds a Master of Laws degree from the University of Toronto Faculty of Law, a Bachelor of Laws degree from Osgoode Hall Law School at York University, and a Bachelor of Arts from Wilfred Laurier University. Courtney achieved the Qualified Mediator designation in Ontario in August 2024.
Sheena Lessard, JD, PI
Sheena is a bilingual, person-centred, trauma-informed lawyer and investigator with a thorough and empathetic approach to her work. As an investigator, she specializes in addressing allegations of sexual discrimination and abuse, financial fraud and misappropriation, and poisoned work environments. She has conducted numerous complex investigations involving multiple complainants and respondents and high volumes of allegations occurring over a long period of time. Sheena’s diverse experience allows her to provide high-quality investigation and case management services that are timely, efficient, and fair.
Before founding SLG, Sheena spent four years conducting and supervising regulatory and workplace investigations for regulators and employers across Canada, and two years at Ontario’s Retirement Homes Regulatory Authority formalizing and standardizing its complaint review process. Sheena also previously wrote complaint decisions for the College of Nurses of Ontario and practised civil and estate litigation.
In addition to holding a Juris Doctor from the University of Toronto Faculty of Law and a Bachelor of Arts in Theatre from the University of Ottawa, Sheena holds a diploma as a social service worker and has worked as a counsellor at a residential shelter serving abused women and children.