Brian D. Portas

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...

Marlow Gereluk acts as lead counsel in syndicated and bilateral debt financings, project financings, asset-backed lending and offerings of bonds, debentures and convertible debt, both national and cross-border. He also advises clients in connection with distressed debt offerings and restructurings, and inter-creditor negotiations. Mr. Gereluk has extensive experience with derivatives, particularly with commodity, cross-currency and interest rate hedging transactions, credit default swaps and ...

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...

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...

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.

Ryan Phillips is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative and Public Law, Alternative Dispute Resolution and Corporate and Commercial Litigation. Ryan, who practices law in Calgary, Alberta, has been recognized since 2022. 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.

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...

Gordon “Gord” Van Vliet is a partner in the firm’s Real Estate and Business practice groups with nearly 20 years of experience helping public and private developers build and manage many large properties throughout Alberta and British Columbia. He provides strategic counsel on a broad range of complex commercial real estate transactions and structures, including commercial and residential land development, sales and acquisitions, mergers, leasing and property management, co-...

Kamil Umar is a commercial real estate lawyer based in Calgary. He takes a business-minded and market-driven approach to his practice, ensuring clients receive practical and thoughtful advice on matters including property purchase and sale, land development and land use planning, condominium and strata development, leasing of all asset classes, and financing and public infrastructure work. Kamil acts for diverse clients, including residential, commercial and industrial developers, privately a...

Tanya A. Frizzell is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Personal Injury Litigation. Tanya A., who practices law in Calgary, Alberta, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tanya A. is held by other top lawyers in the same geographic and legal practice area.