Gordon L. "Gord" Tarnowsky, K.C.

Mylène D. Tiessen is a lawyer recognized by Best Lawyers in the practice areas of Class Action Litigation, Insurance Law and Medical Negligence. Mylène D. practices law in Calgary, Alberta Best Lawyers has recognized Mylène D. Tiessen since 2020. 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 Mylène D. Tiessen is held by other lawyers.

Kelly practices energy, commercial and securities litigation. He has extensive experience with claims in the oil & gas, construction, and securities industries. He acts as counsel for investment dealers, investment advisors and investors in securities regulation, investigation and enforcement matters, and other investment related claims. Kelly has argued cases at all levels of court in Alberta, the Tax Court of Canada, securities regulatory tribunals, and the Canadian Investment Regulator...

Anthony’s practice covers a wide array of taxation law matters, providing businesses and high net-worth families with transactional tax, estate planning and tax dispute resolution advice. In 2022, Anthony was appointed King’s Counsel. Recognized for tax law in the Canadian Lexpert®, the Lexpert/ALM 500, The Best Lawyers in Canada™ guide, and as the 2021 Corporate Tax Planning Lawyer of the Year by Lawyer Monthly, Anthony is one of our co-managing partners in Calgary. Ant...

Jeff is an experienced energy lawyer who advises clients on a broad range of matters, including energy project development and midstream natural gas handling, transportation and treating arrangements. His energy project work mostly involves all aspects of liquefied natural gas (LNG), gas-to-liquids (GTL), pipeline, petrochemical, independent power and water, cogeneration, and hydroelectric projects. Prior to joining Lawson Lundell, Jeff worked for Qatar Petroleum (QP, now QatarEnergy), ultima...

Ainsley Vieira is a lawyer recognized by Best Lawyers in the practice area of Family Law. Ainsley practices law in Calgary, Alberta Best Lawyers has recognized Ainsley Vieira since 2024. 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 Ainsley Vieira is held by other lawyers.

Robert has extensive experience in oil and gas litigation and arbitrations, construction litigation, contract breach cases, First Nations governance, pension litigation and defamation actions, and he has represented clients in professional disciplinary matters before the Alberta Securities Commission, APEGGA, CREB and the Professional Conduct Committee of the Canadian Institute of Actuaries. He acts for a range of clients, from large corporations, pension funds and public institutions to indi...

Robyn Gurofsky is the Co-Leader of the Firm’s Insolvency and Restructuring Group. Her practice focuses on insolvency and restructuring, banking and oil and gas related litigation and general commercial litigation. She advises companies, boards of directors, shareholders, creditors and accounting professionals with respect to all aspects of restructuring and insolvency proceedings, whether informal or formal proceedings, both within Canada and on a cross-border basis. Robyn also acts for...

Paul Stein is a Partner in Gowling WLG's Calgary office. He practises in the area of commercial litigation with an emphasis on fire, oilfield, directors and officers, professional liability, environmental, product liability, property and industrial claims, coverage litigation, class actions, construction, commercial and shareholder disputes. Paul has appeared before all levels of court in Alberta, various administrative tribunals and has also conducted matters in British Columbia, Saskatchewa...

Erin J. Runnalls is a lawyer recognized by Best Lawyers in the practice areas of Corporate and Commercial Litigation, Health Care Law and Medical Negligence. Erin J. practices law in Calgary, Alberta Best Lawyers has recognized Erin J. Runnalls since 2026. 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 Erin J. Runnalls is held by other lawyers.

Nancy's practice focuses primarily on the tax aspects of mergers, acquisitions and reorganizations, including cross-border transactions or financings and intragroup restructurings. She is particularly experienced in the area of resource taxation. Nancy has worked on a wide variety of transactions for multinationals, private companies, senior, intermediate and junior resource issuers and private equity groups.