Lawyer Profile

Nataï Shelsen

Toronto, Ontario

Nataï Shelsen

Overview

Natai practices in both English and French and is licensed in Ontario and Quebec. She has represented clients at every level of court in both provinces, including the Supreme Court of Canada.
Natai believes mediation is one of the most effective tools for resolving disputes, before or after litigation has started. It saves parties time, money, and uncertainty while creating solutions that litigation simply cannot achieve. Natai helps parties navigate their conflict, find enduring solutions, and keep their relationship intact (or negotiate a graceful exit). Natai is strong advocate of early mediation (mediation before litigation begins – read more about it here).
Natai’s mediation practice is focused on relationship preservation and management. She is adept at mediating disputes between individuals or groups with ongoing relationships, including professional practices (midwives, dentists, accountants, etc); shareholder disputes, business partnerships and closely-held or family-run businesses; co-workers and employment-related disputes; families and intergenerational disputes; and neighbours.
Drawing on nearly 15 years of litigation experience, she also mediates active litigation matters, helping parties realistically assess the strengths, risks, and costs of their positions. She is known for her balanced, thoughtful approach and her ability to build trust with all parties at the table. Natai is a roster member of Ontario’s mandatory mediation program.
Natai is also uniquely positioned to mediate disputes involving Indigenous rights and interests. With extensive experience in Indigenous-rights litigation and negotiations, she brings both legal depth and cultural competency to these matters.
Natai is a designated Qualified Mediator (Q.Med), holds a Certificate in Mediating Disputes from Harvard Law School’s Program on Negotiation, and a Certificate in Transformative Mediation from the University of Waterloo and Community Justice Initiatives. She is a former Board member of the ADR Institute of Ontario.
Natai maintains a diverse and complex litigation practice. She represents clients on a variety of business-related disputes, professional regulatory matters, employment matters, human rights issues, contract disputes, real estate disputes, administrative and public law issues.
A skilled negotiator and formidable advocate, Natai combines sharp legal analysis with practical judgment. She approaches every stage of litigation strategically, ensuring each step advances her clients’ broader objectives.
Natai is also a member of her firm’s Aboriginal Law and Indigenous Rights Group, where she advises and represents Indigenous individuals and communities in consultations, negotiations and litigation. Her practice has included a $200-million mining dispute, environmental hearings, consultation and accommodation matters, litigation involving Indigenous governance and constitutional rights and negotiations of agreements with resource development companies.
Coroner’s inquest into the death of Heather Ashley Winterstein (April 2026): Represented the family of a 24-year-old Indigenous woman who died of sepsis while in hospital care. Successfully argued for a finding that delayed treatment contributed to her death.

Practice Areas

  • Aboriginal Law

Bar Information

Called to the bar: 2012 (QC)