David J. Corrigan, K.C.

Megan L. McMahon is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law, Insurance Law and Medical Negligence. Megan L., 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 Megan L. is held by other top lawyers in the same geographic and legal practice area.

Colin is a partner in the Calgary office of Lawson Lundell. He is a member of the firm’s Business Law, Corporate Commercial, Corporate Finance & Securities and Mergers & Acquisitions Groups. His practice covers a broad range of commercial transactions, including the structuring and implementation of share and asset acquisitions, mergers, financings, and corporate reorganizations involving strategic acquirers, investors, vendors, entrepreneurs, family business owners, family offi...

Stacy was born and raised in Calgary, Alberta. She was the Managing Partner of JSS Barristers from 2015 to early 2018. She joined JSS Barristers as their first associate over 20 years ago after articling with a major Calgary law firm. Stacy's practice focuses on civil, corporate and commercial litigation, including professional negligence. She also has experience in class actions and insolvency. Stacy has appeared at every level of the Alberta courts and has conducted and assisted with numero...

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

Crispin is the Administrative Partner of the Calgary office and practices in the areas of business law, corporate finance and securities, mergers and acquisitions, and energy. He advises clients on corporate finance, public and private M&A, corporate reorganizations, and governance matters across a range of industries, including oil and gas, oilfield services, mining, power, and manufacturing. Crispin has significant experience with corporate finance and securities transactions, including...

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 ...

As one of our founders, Joe was appointed King’s Counsel in 1994 and a Fellow of the Chartered Professional Accountants of Alberta in 1995. He offers tax advice on a wide variety of matters, including resource tax, mergers and acquisitions and dispute resolution. An impactful leader, Joe guides our lawyers with active mentorship and mindful team building. Joe gives back to the community in a myriad of ways, both in an academic and volunteer capacity. He has taught at the University of A...

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

Damon Bailey, K.C. is a respected labour lawyer, known for his good judgment and straightforward, decisive approach. He has the ability to examine details and tie them together into a strategic plan to help employers successfully navigate the complexities of labour law. With a particular talent for arbitrations, Damon gets straight to the point with clear direction and concise advice. Clients want him in their corner because he’s a strong leader in negotiations who doesn’t equivoc...

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...