Kirk Mason

Doak Horne is an experienced IP litigation and patent lawyer. A partner in Gowling WLG's Calgary office with over 35 years' experience and over seven full trials and 40 reported decisions before the Federal and provincial (Alberta and Ontario) Courts, having further successfully settled numerous other actions on behalf of clients. Has prepared, filed, and successfully prosecuted hundreds of patents and trademarks before Canadian and US Intellectual Property Offices. Doak is a registered paten...

Ken's practice involves commercial litigation and alternative dispute resolution, with experience in class action, construction, energy, environmental, intellectual property and insurance matters. Ken has appeared before all levels of the Alberta courts and the Federal Court. He also has considerable experience in the area of injunctive relief, including handling a number of such claims in the pipeline and energy industry and successfully dealing with environmental regulatory and civil procee...

William (Bill) Fowlis, KC, FCPA, FCA, TEP is a lawyer, a Chartered Professional Accountant/Chartered Accountant, and a Trust and Estate Practitioner (TEP). With this complementary professional background, Bill focuses on taxation, corporate, trust, succession, and estate planning law for privately owned businesses, corporations, family enterprises and high net worth individuals. Bill is considered to be one of the top legal professionals practicing in these areas of law in Canada. His practic...

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...

Ken’s practice focuses on tax litigation and tax dispute resolution. With over 30 years as a tax lawyer, he also has extensive experience in corporate tax planning, reorganizations and personal tax planning. Becoming partner at Felesky Flynn in 1996, Ken was co-managing partner from 2008 to 2015 and was appointed King’s Counsel in 2008. He has represented taxpayers before the Supreme Court of Canada, Tax Court of Canada, Federal Court of Appeal, Alberta Court of Queen’s Benc...

Jeffrey D. Wise K.C. is a lawyer recognized by Best Lawyers in the practice area of Family Law. Jeffrey D. practices law in Calgary, Alberta Best Lawyers has recognized Jeffrey D. Wise K.C. since 2025. 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 Jeffrey D. Wise K.C. is held by other lawyers.

Teri Treiber provides advice and representation to employers in all areas of labour and employment law. She assists employers with a variety of issues, including employment agreements, collective agreements, workplace policies, human rights, employment standards, privacy, workplace investigations, performance management, employee discipline, terminations, wrongful and constructive dismissal, grievances and arbitrations, and restrictive covenants.

Greg has successfully litigated a wide variety of civil litigation matters and commercial litigation matters including energy related matters. Greg’s trial and appeal experience is extensive and he has appeared before every level of court in Alberta. Greg has also appeared before several administrative tribunals. He has been involved in the resolution of numerous disputes, using mediation, judicial dispute resolution and other ADR forums. Greg became a partner in Parlee McLaws in 1990. ...

Krysta Ostwald earned her B.A. in 1993 and her LL.B. in 1996, both from the University of Victoria. She articled with Fraser Milner and was called to the Alberta Bar in 1997. Since then she has practiced exclusively in the area of family law. Krysta worked with the firms of Laurie Allen & Associates, Turnbull Boyes and Soby Boyden Lenz, before creating Widdowson Kachur Ostwald Menzies LLP with her partners. Krysta emphasizes resolving disputes without unnecessary conflict. She utilizes ma...

Lewis’ practice focuses on regulatory and administrative law matters involving both the electricity and oil and gas sectors including all aspects of rate applications, toll design, facilities applications, cost of capital and related matters before the Alberta Utilities Commission, the Alberta Energy Regulator (and the Canada Energy Regulator, the BCUC, OEB, Manitoba PUB, and the Canada Newfoundland and Labrador Offshore Helicopter Safety Inquiry. He has appeared at all levels of the Al...