Ted Thiessen

Traci Bannister is a Family Lawyer and Family Law Mediator and is a partner at the firm Boyes Tiefenbach Bannister Family Law Counsel LLP in Calgary, Alberta. Traci practiced as an Attorney and Family Law Mediator in South Africa for 20 years before moving to Calgary in 2012. Traci requalified as a Barrister/Solicitor in Canada and was called to the Alberta bar in June 2015. Traci is experienced in helping clients reach resolutions of disputes in all areas of family law, such as parenting dis...

Patricia’s practice focuses on insurance litigation, specializing in general insurance defence, property loss/construction claims, personal injury, professional liability, product liability, occupiers’ liability, commercial host liability, medical malpractice, life and disability and coverage disputes. Patricia has appeared at all levels of Court in Alberta, written submissions to the Supreme Court of Canada and regularly represents clients at mediations and other forms of alterna...

Katherine Ratcliffe is a trusted advisor to high-net-worth individuals, families, and business owners on their estate, trust, and tax matters. She develops sophisticated, client-centric planning strategies that reflect legal precision, practical insight, and a deep understanding of clients’ particular objectives. Katherine’s practice focuses on complex estate planning, trust and corporate structuring, business succession, and post-mortem tax planning. She regularly prepares bespok...

Alan Harvie has practised energy and environmental/regulatory law since 1989 and regularly deals with commercial, operational, environmental and regulatory issues, especially for the upstream and midstream oil and gas, energy, waste disposal and chemical industries. He is a member of our energy and environmental departments. Mr. Harvie also has significant legal experience acting for the oil and gas industry in commercial transactions and regulatory matters, including enforcement proceedings,...

Elizabeth Burton is a lawyer recognized by Best Lawyers in the practice area of Banking and Finance Law. Elizabeth practices law in Calgary, Alberta Best Lawyers has recognized Elizabeth Burton since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Elizabeth Burton is held by other lawyers.

Jody Sutherland collaborates with her clients to come up with creative, proactive solutions that are tailored to their specific needs. She offers timely communication, honest opinions, and a thorough analysis of the strengths and weaknesses of each case in three key areas of law: employment, litigation, and insurance defence. Jody’s significant experience representing employers in employment and human rights matters allows her to see an issue from different perspectives and understand t...

Doug is a senior family lawyer who has practiced family law for over 36 years. His practice is largely mediation and arbitration of family law disputes. Often Doug is acting as a mediator/arbitrator in a hybrid process that combines the benefit of both mediation and arbitration. In addition, Doug assists a few select clients in reaching resolution through negotiation, collaborative law, mediation, arbitration, and when necessary through litigation. Admitted to the Alberta Bar on January 10, 1...

Kaitlin Long's practice focuses on commercial litigation and dispute resolution within the energy industry, regulatory and environmental compliance matters and indigenous law issues. She is experienced in complex, high-stakes litigation proceedings involving contractual disputes, fraud and deceit and class actions. Kaitlin maintains a national practice and has been counsel in numerous trials, appeals and judicial review hearings, including multi-month trials. She has represented clients at al...

For more than 20 years I have been focused on the resolution of business disputes. Over that time, the arbitral proportion of my practice has increased progressively, such that it now comprises a high majority, involving complex matters typically with at least tens of millions of dollars at stake. In 2005, I obtained a Certificate in Arbitration from the Alberta Arbitration and Mediation Society (now the ADR Institute of Alberta) (ADRIA), based on 11 different relevant courses including 62 ho...

Mike Grassie is a lawyer recognized by Best Lawyers in the practice area of Personal Injury Litigation. Mike practices law in Calgary, Alberta Best Lawyers has recognized Mike Grassie since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Mike Grassie is held by other lawyers.