Ryan Robertson

John is a member of the firm’s Indigenous, Environmental, and Project Development practice groups. His practice includes advising private sector and government clients throughout Canada on Indigenous, environmental, regulatory and natural resources matters. John advises oil sands developers, conventional oil and gas companies, railways, mining companies, utilities and other resource developers on environmental regulatory matters and on Indigenous law matters, including Indigenous consul...

As one of our founders, Joe was appointed King’s Counsel in 1994 and a Fellow of the Chartered Professional Accountants of Alberta in 1995. He offers tax advice on a wide variety of matters, including resource tax, mergers and acquisitions and dispute resolution. An impactful leader, Joe guides our lawyers with active mentorship and mindful team building. Joe gives back to the community in a myriad of ways, both in an academic and volunteer capacity. He has taught at the University of A...

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

Rujuta Patel practises business law and competition law, with a focus on the resources and transportation sectors. She advises on private mergers and acquisitions, corporate reorganizations and restructurings of multinational and Canadian organizations, private placements and a variety of energy-related matters. She works regularly with energy services companies and is experienced in drafting, negotiating and advising on a broad range of services, drilling and engineering contracts. She also ...

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,...

Dale practices in the areas of commercial, general and business aviation, banking and finance, and corporate commercial law. Dale is a leading practitioner in the aviation field, having provided legal counsel to domestic and foreign air carriers, aircraft maintenance, repair and overhaul companies, lenders/borrowers, lessors/lessees, buyers/sellers, and institutional clients in all manner of aviation transactions and in respect of the establishment and merger of commercial air services, both ...

Joshua (Josh) Sadovnick has a split practice, with focuses on commercial litigation and employment disputes, both insured and uninsured claims.With reference to commercial litigation, Mr. Sadovnick regularly represents insurers, owners, developers, general contractors, subcontractors and suppliers. Mr. Sadovnick has acted as counsel in commercial disputes on a variety of complex claims, including general commercial and construction disputes, deficiency claims, construction failures (including...

Lucy L'Hirondelle is a litigator whose practice encompasses a broad range of commercial litigation matters and international arbitration with an emphasis on oil and gas litigation/arbitration, contractual disputes, management-side employment litigation. She also has experience conducting third-party investigations. Lucy has worked in the Calgary litigation group since 2012 and has appeared before all levels of court in Alberta, the Nova Scotia Supreme Court, and is familiar with Federal Court...

Mike Grassie is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation. Mike, 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 Mike is held by other top lawyers in the same geographic and legal practice area.

Jim Lebo finds legal solutions that protect businesses. With his detailed knowledge of the people and the intricacies of the court system, he guides his clients through every step of the litigation process with skill and expertise. Jim handles corporate commercial litigation, appeals, and arbitrations. He has specialized expertise in appeals for complicated regulatory proceedings as well as an interest in constitutional litigation. His clients come to him for help with a range of issues in ma...