Guy Pinsonnault
About Guy Pinsonnault
Guy Pinsonnault is a lawyer based in Ottawa, ON and has been recognized in The Best Lawyers in Canada™ since 2015. Guy Pinsonnault is recognized in the following practice areas:
- Ottawa, Ontario
- Competition / Antitrust Law
- Criminal Defence
Current Firm: McMillan LLP
Location: Ottawa, ON
It takes just a few minutes to optimize your profile for clients looking to engage and lawyers who are ready to refer.
Activate your profile and highlight why your peers recognized in Best Lawyers today.
Nearby Lawyers
Martha J. Savoy is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Martha J., who practices law in Ottawa, Ontario, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Martha J. is held by other top lawyers in the same geographic and legal practice area.
Gordon B. Greenwood is the Managing Partner of Maclaren Corlett LLP. He focuses on business law within Canada and internationally, divided between regulatory law (especially as it relates to advertising and marketing, cosmetics, food and drug, and intellectual property law) and corporate/commercial law. As well as providing professional representation for domestic, international and multinational clients, Gordon is active with many trade associations across Canada and the United States. Mr. G...
Scott Prescott practises communications and administrative law. He is an expert on the legal, regulatory and policy frameworks governing the broadcasting and telecommunications industries in Canada. Providing complex legal and strategic advice, clients include leading Canadian and international communications companies. He advises a number of cable, IPTV and satellite distributors, television and radio broadcasters, online content providers, foreign programming services, Internet service prov...
Sean Bawden is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation and Labour and Employment Law. Sean, who practices law in Ottawa, Ontario, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sean is held by other top lawyers in the same geographic and legal practice area.
Marc Richard is a partner in the Gowling WLG Ottawa office, practising in the areas of patents, trademarks and copyright, with a particular focus on patent litigation. Marc has acted for clients on numerous patent matters relating to pharmaceuticals, as well as matters relating to oil and gas, electronics, food products, agriculture, mining, consumer goods and manufacturing. Marc appears regularly as an advocate before the Federal Court and has presented before the Federal Court of Appeal, th...
Tara Sweeney joined Soloway Wright in 2000 as a civil litigation lawyer in Ottawa. Tara practices general litigation, including Professional Negligence, Medical Malpractice , Personal Injury , Estates Litigation and Commercial Litigation . Tara has appeared before the Superior Court of Justice, Divisional Court of Ontario, the Court of Appeal for Ontario, the Federal Court, the Federal Court of Appeal and various administrative tribunals, including professional colleges. Tara has been accepte...
Stephanie Doucet is a top attorney recognized by Best Lawyers in the practice area(s) of Professional Malpractice Law. Stephanie, who practices law in Ottawa, Ontario, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephanie is held by other top lawyers in the same geographic and legal practice area.
Terilynn is a member of our Real Estate & Development and Commercial Leasing law groups. She brings to the firm extensive experience in commercial real estate, financing and leasing law. Terilynn has represented some of Ottawa’s most prominent land developers, landlords and tenants. Her practice includes all aspects of commercial real estate and commercial leasing, including advising clients on complicated land sharing agreements, including co-ownerships, limited partnerships and jo...
Peter Mantas leads Fasken’s London and Ottawa litigation teams, the firm’s Procurement group, and co-leads its White Collar Defence and Investigations group. Peter is a litigation partner with over 30 years' experience in complicated, high stakes cases before national and international courts, tribunals and arbitration panels. Clients appreciate Peter’s knowledge, strategic advice, teamwork and tough but reasonable approach. He is also valued for his skill in negotiations, c...
Peter Engelmann is a labour and human rights lawyer in Goldblatt Partners' Ottawa office. He was a founding partner of Engelmann Gottheil, a firm that merged its practice with Sack Goldblatt Mitchell - now Goldblatt Partners - in 2005. Peter’s practice focuses on all aspects of labour law, human rights, pay and employment equity law and Charter litigation. He has appeared at all levels of court, including the Supreme Court of Canada, and appears regularly before arbitrators, human righ...
Explore and Learn
The Family Law Loophole That Lets Sex Offenders Parent Kids
by Bryan Driscoll
Is the state's surrogacy framework putting children at risk?
Recognizing Legal Leaders: The 2027 Best Lawyers Awards in Australia, Japan and Singapore
by Jamilla Tabbara
Market drivers, diversity trends and the elite practitioners shaping the legal landscape.
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.
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
Can a Green Card Be Revoked?
by Bryan Driscoll
Revocation requires a legal basis, notice and the chance to respond before status can be taken away.
New Texas Family Laws Transform Navigating Divorce, Custody
by Bryan Driscoll
Reforms are sweeping, philosophically distinct and designed to change the way families operate.
How Far Back Can the IRS Audit You?
by Bryan Driscoll
Clear answers on IRS statutes of limitations, recordkeeping and what to do if you are under review.
US Tariff Uncertainty Throws Canada Into Legal Purgatory
by Bryan Driscoll
The message is clear: There is no returning to pre-2025 normalcy.
The 2026 Best Lawyers Awards in Chile, Colombia and Puerto Rico
by Jamilla Tabbara
The region’s most highly regarded lawyers.
Can You File Bankruptcy on Credit Cards
by Bryan Driscoll
Understanding your options for relief from overwhelming debt.