David R.J. Lefebvre

Alison is a skilled labour and employment lawyer. She advises employers in Alberta and Ontario in a wide range of industries across the public and private sectors, including oil & gas, banking, food and agriculture, aviation, and health care. Alison works closely with in-house counsel as well as human resources and labour relations professionals providing strategic advice on labour relations, arbitration, collective bargaining, human rights, employment policies and procedures, disability ...

Aubrey is a partner based in our Calgary office and practices in all areas of commercial real estate including purchase, sale, development, financing and leasing. He has extensive experience in complex real estate transactions including both pre-development lands and lands with existing office, retail or industrial developments. He has completed transactions with various unique aspects such as environmental contamination, appurtenant water licenses, long term ground leases for development, sy...

Thomas Cumming is a lawyer recognized by Best Lawyers in the practice area of Insolvency and Financial Restructuring Law. Thomas practices law in Calgary, Alberta Best Lawyers has recognized Thomas Cumming since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Thomas Cumming is held by other lawyers.

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...

Tim Ryan is a partner in Gowling WLG's Calgary office. He practises actively in the area of health law, professional regulation and professional liability. Tim's practice includes class action proceedings, administrative law and the defence of medical, pharmacist and engineering malpractice cases. He also has an interest in public and private international law matters. While at Cambridge, Tim concentrated his studies in public and private international law, including studies at the Lauterpach...

Geoff Poelman practises in the litigation group with a focus on complex commercial litigation within the energy industry, construction law, and insurance defence. He has been involved in matters at all levels of court in Alberta, having experience with proceedings including contractual disputes, statutory interpretation and negligence. Geoff has successfully managed multi-party actions with complex procedural issues, often participating in a variety of alternative dispute resolution processes...

Michael began his legal career with Bennett Jones LLP. Michael joined Carbert Waite LLP in 2003. In 2020, Michael was appointed King’s Counsel by Alberta’s Minister of Justice and Solicitor General, Doug Schweitzer. Appointments of King’s Counsel are awarded to lawyers who have made significant contributions to the legal profession and have demonstrated exceptional leadership. LITIGATION PRACTICE Michael is an accomplished advocate and maintains an active civil and commercia...

Brad Hayden is a senior business lawyer. He has an extensive background in leadership, management, strategic and operational planning, organizational transformation and change management, client relationship management, business operations, governance and communication. Brad practises business law, with a focus on the energy and transportation industries. He works with businesses involved in mergers, acquisitions, divestitures and financings, domestic and cross-border reorganizations, corpora...

Andrew received his Bachelor of Arts degree in Economics from the University of Waterloo in 1998, where he achieved Dean's List standing. He then obtained his Bachelor of Laws degree from Dalhousie University in Halifax in 2001. He again achieved Dean's List standing and was the recipient of numerous scholarships and awards. Andrew was called to the Alberta bar in 2002. After completing his articles Andrew obtained his Master of Laws degree from Queens' College, Cambridge University, England ...

Clay Jacobson is a lawyer recognized by Best Lawyers in the practice areas of Corporate and Commercial Litigation and Energy Law. Clay practices law in Calgary, Alberta Best Lawyers has recognized Clay Jacobson since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Clay Jacobson is held by other lawyers.