Jackie R. Halpern KC

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 ...

John is a partner at Felesky Flynn in Calgary, Alberta. He focuses on corporate and international tax planning and frequently assists clients in dispute matters. John holds dual qualifications as a lawyer and CPA in Alberta and previously served as a tax practitioner in Australia for many years. He graduated with honours from the University of Melbourne with a double degree in Law and Commerce and currently teaches tax law at the University of Calgary. Before joining Felesky Flynn, John pract...

Jeffrey D. Wise K.C. is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Jeffrey D., 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 Jeffrey D. is held by other top lawyers in the same geographic and legal practice area.

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...

Karen Pirie, KC is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law, Medical Negligence and Professional Malpractice Law. Karen, who practices law in Calgary, Alberta, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Karen is held by other top lawyers in the same geographic and legal practice area.

Andrew Wong is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law. Andrew, 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 Andrew is held by other top lawyers in the same geographic and legal practice area.

Carsten is a founding member and senior partner of JSS Barristers, the largest civil litigation boutique law firm in western Canada. His practice emphasizes complex and multi-party corporate and commercial litigation, commercial class actions, oil & gas litigation including royalty, environmental and CAPL issues, shareholder disputes, advising creditors and others in insolvency matters and professional negligence claims. During a leave of absence from JSS Barristers, he served as Senior L...

Grant is recognized as a leading litigation lawyer by Chambers Canada , Lexpert , Best Lawyers , Benchmark Canada and others. He has been identified by Benchmark as one of the top 50 trial lawyers in Canada each year since 2020. He was inducted into Benchmark’s Litigation Hall of Fame in 2023 and is a Fellow of the Litigation Counsel of America. Grant is known as a fierce advocate who applies common sense to solve complex legal and business problems. He has the ability to pierce through...

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...

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.