Sonja Lusignan

Dale practices in the areas of commercial, general and business aviation, banking and finance, and corporate commercial law. Dale is a leading practitioner in the aviation field, having provided legal counsel to domestic and foreign air carriers, aircraft maintenance, repair and overhaul companies, lenders/borrowers, lessors/lessees, buyers/sellers, and institutional clients in all manner of aviation transactions and in respect of the establishment and merger of commercial air services, both ...

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

James’ practice involves all aspects of corporate restructuring and insolvency law. He regularly advises clients in reorganizations pursuant to Canadian insolvency statutes, corporate arrangements, receiverships, bankruptcies, security reviews and enforcement proceedings. He frequently represents debtor companies, secured and unsecured creditors, plan or proposal sponsors, purchasers and court officers in domestic and cross-border cases. James strives to work collaboratively with client...

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

Tim is peer ranked as one of the top labour and employment lawyers in Canada. For over 25 years, Tim has advocated for federally and provincially regulated employers on matters related to workplace law. He acts as lead counsel on significant labour, employment, and workplace human rights cases, including in matters that have been elevated to the Supreme Court of Canada. Tim sets a new standard for employer advocacy. His commitment to building trusting relationships through counseling employer...

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...

Dennis Langen practices regulatory law and litigation and has an in-depth knowledge of the energy industry. With a practice focused on oil and gas and electricity, Dennis assists clients in navigating energy regulatory regimes and frameworks in dynamic technical and business environments. He has extensive experience in the regulation of energy and infrastructure development, energy markets and energy services. He advises clients in respect of federal and provincial regulation of infrastructur...

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...

Jennifer Koschinsky is senior counsel in the Employment & Labour Group. Her practice focuses on all aspects of the employment relationship, from pre-employment matters and hiring to performance management, and discipline and termination. Jennifer provides practical advice to employers concerning employment law compliance, human rights and workers’ compensation, including drafting employment agreements, policies, restrictive covenants, and termination documentation. She is also an ex...

For over 30 years, Zul Verjee has stood at the forefront of commercial litigation and insurance litigation in Alberta and across Canada. Zul is recognized as a leading litigation trial lawyer across Canada and North America. He has appeared at all levels of Court in Alberta, the Federal Court of Canada and conducted over 100 mediations and Judicial Dispute Resolution conferences. Zul’s practice spans the most complex disputes including commercial litigation, major personal injury and fa...