Patrick Heinsen, KC

Ben Hudson is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law and Trusts and Estates. Ben, 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 Ben is held by other top lawyers in the same geographic and legal practice area.

Kevin Guenther is a partner in the Tax and Corporate Groups. Kevin’s practice focuses on mergers and acquisitions, corporate reorganizations, tax structuring, as well as general corporate and tax matters. Kevin’s clients include publicly listed and private entities, multinational companies, and Canadian, U.S. and global private equity funds. His experience spans multiple industries, including energy, agribusiness and technology. Kevin has particular expertise with cross-border tra...

Jody Sutherland collaborates with her clients to come up with creative, proactive solutions that are tailored to their specific needs. She offers timely communication, honest opinions, and a thorough analysis of the strengths and weaknesses of each case in three key areas of law: employment, litigation, and insurance defence. Jody’s significant experience representing employers in employment and human rights matters allows her to see an issue from different perspectives and understand t...

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.

Julie D’Avignon is a partner and head of the Tax Group in Calgary. Her practice focuses on providing tax advice in connection with mergers and acquisitions, corporate reorganizations, equity investments, flow-through share transactions and financings. Julie has extensive experience working with Canadian and international clients, public and private entities, tax-exempt entities, and private equity firms. Julie has particular expertise in resource and energy taxation, including with resp...

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...

Sherrilynn J. Kelly is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Sherrilynn J., 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 Sherrilynn J. is held by other top lawyers in the same geographic and legal practice area.

Jamie Flanagan is an experienced advocate who has guided his clients through difficult times for more than 30 years. Focusing on civil litigation, he handles commercial and construction litigation, employment law disputes, and estate litigation. When a matter proceeds to trial, Jamie has the litigation experience to aggressively and thoroughly pursue his clients' interests. He has appeared before the provincial, superior, and appeal courts of Alberta, British Columbia, and Saskatchewan on a w...

William (Bill) Fowlis, KC, FCPA, FCA, TEP is a lawyer, a Chartered Professional Accountant/Chartered Accountant, and a Trust and Estate Practitioner (TEP). With this complementary professional background, Bill focuses on taxation, corporate, trust, succession, and estate planning law for privately owned businesses, corporations, family enterprises and high net worth individuals. Bill is considered to be one of the top legal professionals practicing in these areas of law in Canada. His practic...

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 ...