Derek D. Key KC

Karen E. Hennessey is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Karen E., who practices law in Ottawa, Ontario, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Karen E. is held by other top lawyers in the same geographic and legal practice area.

A partner at Robertson Stromberg LLP, Tiffany practises primarily in the area of family law. Tiffany has built an extremely successful practice in the areas of divorce, property division, custody, parenting, child and spousal support, adoption and child protection, surrogacy and assisted reproduction, pre-nuptial and cohabitation agreements. In addition to negotiating, and litigating, family law disputes, Tiffany is also an experienced Arbitrator, Mediator, Parenting Coordinator and collabora...

Practices in the area of commercial litigation including contract and business disputes, appeals, administrative tribunals (human rights, privacy law), defence of professionals in self-regulation discipline and complaint proceedings, shareholder disputes and real estate litigation. Also practices in the area of health law including public health law, hospital privileges disputes and regulatory college proceedings.

A partner of the firm, Mtre Cindy Bélanger practices in intellectual property law and in advertising and marketing. A trademark agent, Mtre Cindy Bélanger develops strategies for trademark filings in Canada and abroad and adapts them to her clients’ objectives. She advises them on matters relating to trademark adoption and registration, trademark licences, copyright and domain name. She also works in litigation cases involving trademarks and copyright. She also specializes...

Stéphanie Beaudoin is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. Stéphanie, who practices law in Montréal, Quebec, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stéphanie is held by other top lawyers in the same geographic and legal practice area.

Matthew Stroh is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation and Trusts and Estates. Matthew, who practices law in Toronto, Ontario, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Matthew is held by other top lawyers in the same geographic and legal practice area.

David Baxter received his law degree from the University of Toronto and earlier graduated with a Bachelor of Commerce (Honours) degree from the University of British Columbia. He was admitted to the British Columbia Bar in 1994. David’s practice focuses on tax planning for individuals, trusts and corporations in both domestic and international matters, including divisive reorganizations, estate planning, business structuring and sales, life insurance matters, foreign affiliates and cros...

Mark Platteel is a top attorney recognized by Best Lawyers in the practice area(s) of Project Finance Law. Mark, who practices law in Toronto, Ontario, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark is held by other top lawyers in the same geographic and legal practice area.

Maria Braker is counsel in our Litigation and Conflict Resolution group. She has extensive experience in appellate advocacy, in complex contractual disputes, in administrative law, as well as in class action defense. Her practice includes a focus on written advocacy, as well as providing legal opinions on difficult and novel legal issues. Maria is also actively involved in securities litigation. Maria began her career as a research lawyer at the Court of Appel of Quebec, for the honorable Jac...

Judith Rae is a Partner at OKT committed to advancing Indigenous peoples’ goals. Her focus areas include governance, child welfare, health and education. She has also worked on protecting Indigenous lands and resources, developing Indigenous laws, constitutional and human rights, and a number of other strategic, negotiation & litigation matters. In addition to her legal background, Judith also has a Masters in Social Work and experience working with youth at risk. She offers inter-d...