Mark Rathwell
About Mark Rathwell
Mark Rathwell is a lawyer based in Calgary, AB and has been recognized in The Best Lawyers in Canada™ since 2025. Mark Rathwell is recognized in the following practice areas:
- Calgary, Alberta
- Administrative and Public Law
- Corporate and Commercial Litigation
Current Firm: McLeod Law LLP
Location: Calgary, AB
Nearby Lawyers
Sandra's international experience, multi-lingual fluency, and nuanced understanding of dispute resolution uniquely inform her approach to family law. Trained and experienced in negotiation and mediation, Sandra believes in resolving family law disputes in a solution-focused, efficient, and non-adversarial manner. Where necessary, Sandra engages in targeted litigation and has argued successfully in the Provincial Court of Alberta, the Court of Queen's Bench, and the Court of Appeal. Sandra art...
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.
Ainsley Vieira is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Ainsley, who practices law in Calgary, Alberta, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ainsley is held by other top lawyers in the same geographic and legal practice area.
Stuart M. Olley is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Mergers and Acquisitions Law, Mining Law and Securities Law. Stuart M., 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 Stuart M. is held by other top lawyers in the same geographic and legal practice area.
Bryan Walker is a litigator whose practice encompasses a broad range of commercial litigation matters with an emphasis on oil and gas litigation, construction law, and insurance defence. Mr. Walker also advises clients on regulatory requirements surrounding food safety. He has appeared before the Alberta Court of Queen's Bench and Tax Court of Canada. Mr. Walker is also the local chair for Norton Rose Fulbright's national Pro Bono Committee.
Chrysten Perry, KC, is Managing Partner of the Calgary office, Co-Head of the Energy Group and a member of the Partnership Board. She is a partner in the Commercial Energy, Corporate and Projects and Infrastructure Groups and has more than 30 years of experience practicing corporate and commercial law in the energy industry. Chrysten advises clients on a diverse array of energy-driven matters including joint ventures, private share and asset purchase and sale transactions, transportation, pro...
Alex practices general commercial and civil litigation and advises clients with respect to a broad range of individual and corporate disputes, including contractual disputes, insurance matters, and tort-based claims. She also has extensive experience in construction matters, particularly with builders’ liens and delay claims. Alex has represented clients in the Alberta Court of Justice (formerly Provincial Court) and the Court of King’s Bench of Alberta, as well as in commercial a...
Matthew Longstaff has extensive experience advising investment banks, sovereigns, private equity houses and corporate clients in a broad range of cross‑border debt financings, including high‑yield bonds, leveraged bank finance, syndicated and bilateral bank financings, project financings, convertible and exchangeable bonds, sovereign bonds, hybrid capital issuances, consent solicitations, and securitizations, as well as advising on restructurings and in distressed debt scenarios. In addition,...
Thomas Cumming is a top attorney recognized by Best Lawyers in the practice area(s) of Insolvency and Financial Restructuring Law. Thomas, 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 Thomas is held by other top lawyers in the same geographic and legal practice area.
Regina Corrigan is a partner in the Calgary office of the firm, head of the office's Business Law Department and practice group leader for its Intellectual Property Law Department. Regina's practice focuses on the areas of trademarks and technology commercialization. She has significant experience with all aspects of trademark law, including, prosecution, opposition, licensing and rights transfer in Canada. Regina also holds in-depth expertise in the commercialization and development of techn...
Explore and Learn
2026 Best Lawyers Awards: Recognizing Legal Talent Across the United States
by Jamilla Tabbara
The 2026 editions highlight the top 5% of U.S. attorneys, showcase emerging practice areas and reveal trends shaping the nation’s legal profession.
Gun Rights for Convicted Felons? The DOJ Says It's Time.
by Bryan Driscoll
It's more than an administrative reopening of a long-dormant issue; it's a test of how the law reconciles the right to bear arms with protecting the public.
2026 Best Lawyers Awards in Canada: Marking 20 Years of Excellence
by Jamilla Tabbara
Honoring Canada’s most respected lawyers and spotlighting the next generation shaping the future of law.
How to Sue for Defamation: Costs, Process and What to Expect
by Bryan Driscoll
Learn the legal standards, costs and steps involved when you sue for defamation, including the difference between libel and slander.
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
Build Your Legal Practice with Effective Online Networking
by Jamilla Tabbara
How thoughtful online networking supports sustained legal practice growth.
Reddit’s Lawsuit Could Change How Much AI Knows About You
by Justin Smulison
Big AI is battling for its future—your data’s at stake.
How to Choose a Good Lawyer: Tips, Traits and Questions to Ask
by Laurie Villanueva
A Practical Guide for Your First-Time Hiring a Lawyer
Common-Law Marriage in Indiana: Are You Legally Protected?
by Laurie Villanueva
Understanding cohabitation rights and common-law marriage recognition in Indiana.