John C. Armstrong, K.C.

Jessie Larter is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Jessie, 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 Jessie is held by other top lawyers in the same geographic and legal practice area.

Darren J. Taylor is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Leasing Law and Real Estate Law. Darren J., 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 Darren J. is held by other top lawyers in the same geographic and legal practice area.

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...

Clay Jacobson is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation and Energy Law. Clay, 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 Clay is held by other top lawyers in the same geographic and legal practice area.

Ray Chartier practises commercial litigation, arbitration and dispute resolution, focusing on matters involving the energy industry, major infrastructure projects and the transportation sector. He also advises a broad range of clients on indigenous law issues, and on environmental, social and governance (ESG) risks, regulation and compliance issues. Ray's clients include project proponents, financial institutions and other stakeholders. Over the years, Ray has been involved in pipeline applic...

Kristian A. Duff is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Medical Negligence. Kristian A., 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 Kristian A. is held by other top lawyers in the same geographic and legal practice area.

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...

Over the 20 years Tonii Roulston has been a member of the Calgary Bar Association, she has built her long-standing reputation as a tough criminal defence lawyer. Known for her strategic thinking, and effectiveness in the courtroom, she has represented a variety of challenging and high-profile cases. As a female lawyer, she holds an advantage in vigorously questioning female complainants on difficult details including their motivations to lie and inconsistencies in their accusations. Tonii is ...

Michael Morcom acts for lenders and borrowers in corporate finance and mid-market financing transactions. He is the Managing Partner of the Calgary office and a leader of the Firm’s Financial Services specialty group. Mike has extensive experience in secured transactions and opinion mandates (acting for lenders and borrowers), as well as commercial real estate matters. Michael brings a personable and collaborative approach to his practice to achieve accuracy, efficiency, and results for...

Kirk Litvenenko's core practice areas include: corporate governance, mergers and acquisitions, recapitalization and reorganization transactions and public and private offerings of debt and equity. Kirk is focused on providing elite client service. Kirk builds high-performance internal working teams that are specifically designed to collaboratively service each client's specific and unique needs. Excellent service builds client loyalty and strong relationships, as such, many of the clients for...