David V. Tupper

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...

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.

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

Shanlee’s practice is focused on securities and capital markets, mergers and acquisitions, private equity, start-ups, shareholder activism and corporate governance. Shanlee has a business-friendly, “get the deal done” mentality, enabling her to develop close and trusting business relationships while delivering practical, timely and high-value advice on an array of complex legal issues and transactions. Shanlee has extensive experience advising clients on domestic and cross-b...

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...

David Bishop is a partner at Gowlings and head of Calgary's Advocacy Group. David’s practice involves all aspects of corporate/commercial litigation with an emphasis on directors' and officers' defence, product liability, professional liability disputes, shareholder disputes, class actions, large property and industrial claims, and environmental litigation. He is familiar with all aspects of dispute resolution, including private mediations, judicial dispute resolution conferences and ar...

Erin J. Baker is a top attorney recognized by Best Lawyers in the practice area(s) of Labour and Employment Law and Legal Malpractice Law. Erin J., who practices law in Calgary, Alberta, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Erin J. 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.

Jessica A. MacDonald is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Family Law Mediation. Jessica A., 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 Jessica A. is held by other top lawyers in the same geographic and legal practice area.

KayLynn Litton is the Canadian head of our energy sector. She regularly assists clients on a broad range of corporate and commercial matters, including domestic and international acquisitions and divestitures, joint venture projects, midstream contracts, corporate reorganizations, Aboriginal consultation and general contractual matters. Her practice includes negotiating and drafting complex transactional, corporate, commercial and operational agreements for clients in a variety of energy indu...