Clark Kassian

John Jung is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. John, who practices law in Calgary, Alberta, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John is held by other top lawyers in the same geographic and legal practice area.

Emi R. Bossio is a top attorney recognized by Best Lawyers in the practice area(s) of Alternative Dispute Resolution, Appellate Practice, Corporate and Commercial Litigation, Labour and Employment Law and Product Liability Law. Emi R., who practices law in Calgary, Alberta, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Emi R. is held by other top lawyers in the same geographic and legal practice area.

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...

Brad Hayden is a senior business lawyer. He has an extensive background in leadership, management, strategic and operational planning, organizational transformation and change management, client relationship management, business operations, governance and communication. Brad practises business law, with a focus on the energy and transportation industries. He works with businesses involved in mergers, acquisitions, divestitures and financings, domestic and cross-border reorganizations, corpora...

Matthew Longstaff has extensive experience advising investment banks, sovereigns, private equity houses and corporate clients in a broad range of cross‑border debt financings, including high‑yield bonds, leveraged bank finance, syndicated and bilateral bank financings, project financings, convertible and exchangeable bonds, sovereign bonds, hybrid capital issuances, consent solicitations, and securitizations, as well as advising on restructurings and in distressed debt scenarios. In addition,...

Vhari’s practice focuses on commercial litigation and arbitration, with an emphasis on professional and product liability, and wills, trust, and estate litigation. She represents engineers, architects, design professionals, directors and officers in defending errors and omissions claims, often in connection with disputes related to large infrastructure and residential projects. Vhari takes a practical, efficiency-minded approach to litigation and dispute resolution. She has experience b...

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...

Doak Horne is a partner in Gowlings’ Calgary office, practising in the area of intellectual property litigation and patent prosecution for over 25 years. Doak is a Registered Patent and Trademark Agent in Canada and the United States, as well as a registered professional engineer. He has been involved in preparation, filing, and prosecution of patents, trade-marks, and industrial designs before the Canadian Intellectual Property Office, and been extensively involved in licensing matters...

Divorce is one of the most difficult and stressful events anyone can experience. Lindsay’s passion is assisting people through this tumultuous experience in a manner that allows them to remain in control of their solution, minimize the conflict to which they and their children are exposed, preserve their assets and improve communication. Using mediation techniques tailored to client’s particular conflict level and matters in dispute, Lindsay maximizes the prospect for a mutually a...

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,...