John R. Cusano

Marc Matras is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation and Insurance Law. Marc, 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 Marc is held by other top lawyers in the same geographic and legal practice area.

Philip W. Nykyforuk is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law, Insurance Law, Medical Negligence and Personal Injury Litigation. Philip W., who practices law in Calgary, Alberta, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Philip W. is held by other top lawyers in the same geographic and legal practice area.

Clay Jacobson is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation and Energy Law. Clay, 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 Clay is held by other top lawyers in the same geographic and legal practice area.

Mr. Burstall practices in the area of commercial law with an emphasis on securities law. Its practice includes all aspects of securities law from both the perspective of an issuer or an underwriter, including initial public offerings, secondary financing, mergers and acquisitions, all dealings with regulators including stock exchanges and securities commissions, and corporate governance. He also practices in business and corporate commercial law, including all forms of corporate governance, s...

Tara G. Tiefenbach is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Tara G., who practices law in Calgary, Alberta, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tara G. is held by other top lawyers in the same geographic and legal practice area.

Elizabeth Williams, managing partner of the Calgary office, has a broad practice in both business law and intellectual property law where she provides general corporate and commercial advice and advises on intellectual property matters. Ms. Williams has extensive experience advising clients in M&A transactions, complex licensing and IP commercialization matters and portfolio monetization. Her experience has included major, complex and multi-jurisdictional M&A transactions, commercial ...

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...

Tracy Hanson is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Tracy, 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 Tracy is held by other top lawyers in the same geographic and legal practice area.

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...

S.B. Gavin Matthews is a top attorney recognized by Best Lawyers in the practice area(s) of Alternative Dispute Resolution, Appellate Practice, Class Action Litigation, Construction Law, Corporate and Commercial Litigation, Insurance Law, Labour and Employment Law and Product Liability Law. S.B. Gavin, who practices law in Calgary, Alberta, has been recognized since 2011. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which S.B. Gavin is held by o...