Steven "Steve" Marshall

Marcus is an award-winning family lawyer practicing in Alberta and British Columbia, honoured as one of Canada’s Top 25 Most Influential Lawyers and featured in Best Lawyers in Canada in 2024, 2025, and 2026. As the founder of both Crossroads Law and Coach My Case, he is recognized for disrupting the practice of law to provide a more client-centred legal experience while advocating for access to justice. Marcus is passionate about consensual dispute resolution. He believes that most fam...

Brian Kapusianyk is a partner in the firm’s Calgary office, practising in the areas of insurance and commercial litigation with an emphasis in professional liability, construction law, D&O litigation, commercial insurance coverage and defence, as well as personal injury and products liability litigation. He has acted on matters in British Columbia, Alberta, Saskatchewan, Manitoba, Ontario and the Yukon Territory. He has appeared in the courts at all levels including the Federal Cour...

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...

Lara Mason’s practice encompasses a wide range of commercial litigation matters, including commercial disputes, transnational and cross-border disputes, professional liability matters, insurance coverage disputes and class actions. Ms. Mason has appeared at all levels of court in Alberta, before the Supreme Court of Canada, and before the Alberta Utilities Commission. She has also participated in a variety of alternative dispute resolution processes.Ms. Mason joined our Calgary office a...

Katherine Stys is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law and Medical Negligence. Katherine, who practices law in Calgary, Alberta, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Katherine 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.

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...

Carolyn maintains a corporate commercial practice with a focus on business transactions, including private and public mergers and acquisitions, private equity transactions, corporate reorganizations, and debt and equity financings. She also advises clients on corporate governance and general corporate and securities law matters. Carolyn regularly acts for Canadian and U.S. private equity firms and their portfolio companies, as well as clients in the energy sector, including midstream companie...

Melissa became a member of the Law Society of Alberta in 2004. After her articles, Melissa participated in a Canadian Bar Association internship in Tanzania. During this internship, she assisted the Legal and Human Rights Centre in Dar es Salaam with promoting awareness on various critical human rights issues. Melissa joined Carbert Waite LLP in 2006, and became a partner in 2017. Melissa practices in all areas of civil and commercial litigation. Melissa’s primary practice areas are emp...

Kevin Plowman’s practice includes advising his corporate clients and their directors, officers and controlling shareholders with respect to the formation, governance and dealing with the day to day legal issues that arise. Kevin’s practice also covers all aspects of corporate finance, with an emphasis on multi-jurisdictional and cross-border financings as well as corporate finance and mid-market financing transactions. He has extensive experience in domestic and cross-border debt ...