Brian J. Thiessen KC
About Brian J. Thiessen KC
Brian J. Thiessen KC is a lawyer based in Calgary, AB and has been recognized in The Best Lawyers in Canada™ since 2011. Brian J. Thiessen KC is recognized in the following practice areas:
- Calgary, Alberta
- Employee Benefits Law
- Labour and Employment Law
- Privacy and Data Security Law
Current Firm: Osler, Hoskin & Harcourt LLP
Location: Calgary, AB
Nearby Lawyers
Veronica Choy is the Chair of Miller Thomson’s national Immigration group. She acts for a broad range of companies and individuals on Canadian and American business immigration matters. Licensed in Alberta and Washington, Veronica offers her clients the unique advantage of sourcing their American and Canadian immigration needs in one place. This allows clients to consider a wider range of practical options, processes, and consequences in the hiring and movement of personnel to work in C...
Peter practices primarily in the areas immigration and citizenship law. As a Canadian immigration law practitioner, Peter has prepared and filed all types of immigration and temporary status applications. This includes federal skilled worker, Canadian Experience Class, family class sponsorships (spouses, children, and parents), business class, provincial nominations, special programs, and humanitarian and compassionate applications for permanent residence. Peter's practice includes the prepar...
Emi R. Bossio is a top attorney recognized by Best Lawyers in the practice area(s) of Alternative Dispute Resolution, Appellate Practice, Corporate and Commercial Litigation, Labour and Employment Law and Product Liability Law. Emi R., who practices law in Calgary, Alberta, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Emi R. is held by other top lawyers in the same geographic and legal practice area.
Joshua (Josh) Sadovnick has a split practice, with focuses on commercial litigation and employment disputes, both insured and uninsured claims.With reference to commercial litigation, Mr. Sadovnick regularly represents insurers, owners, developers, general contractors, subcontractors and suppliers. Mr. Sadovnick has acted as counsel in commercial disputes on a variety of complex claims, including general commercial and construction disputes, deficiency claims, construction failures (including...
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...
David Bishop is a partner at Gowlings and head of Calgary's Advocacy Group. David’s practice involves all aspects of corporate/commercial litigation with an emphasis on directors' and officers' defence, product liability, professional liability disputes, shareholder disputes, class actions, large property and industrial claims, and environmental litigation. He is familiar with all aspects of dispute resolution, including private mediations, judicial dispute resolution conferences and ar...
Caireen Hanert is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative and Public Law and Corporate and Commercial Litigation. Caireen, 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 Caireen 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...
Peter Hryniuk is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Peter, who practices law in Calgary, Alberta, has been recognized since 2012. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Peter is held by other top lawyers in the same geographic and legal practice area.
Perry R. Mack, K.C. is a top attorney recognized by Best Lawyers in the practice area(s) of Alternative Dispute Resolution, Appellate Practice, Bet-the-Company Litigation, Construction Law, Corporate and Commercial Litigation, Director and Officer Liability Practice, Insurance Law, International Arbitration and Personal Injury Litigation. Perry R., who practices law in Calgary, Alberta, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting t...
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.
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
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.
Common-Law Marriage in Indiana: Are You Legally Protected?
by Laurie Villanueva
Understanding cohabitation rights and common-law marriage recognition in Indiana.
Unenforceable HOA Rules: What Homeowners Can Do About Illegal HOA Actions
by Bryan Driscoll
Not every HOA rule is legal. Learn how to recognize and fight unenforceable HOA rules that overstep the law.