Eileen M. McMahon
About Eileen M. McMahon
Eileen M. McMahon is a lawyer based in Toronto, ON and has been recognized in The Best Lawyers in Canada™ since 2006. Eileen M. McMahon is recognized in the following practice areas:
- Toronto, Ontario
- Biotechnology and Life Sciences Practice
- Cannabis Law
- Intellectual Property Law
Current Firm: Torys LLP
Location: Toronto, 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
Brian is a management-side labour, employment and human rights lawyer in Fasken’s Toronto office. Brian advises Canadian businesses (operating both inside and outside of Canada) on how best to identify, prevent and monitor the human rights impact of their operations and activities, including supply chains, as well as guiding them on corporate reporting obligations under Canada’s new Fighting Against Forced Labour and Child Labour in Supply Chains Act . Over the last few years, Bri...
Biography Christina Doria assists corporations, public entities, and states with litigation and arbitration, including enforcement of awards and judgments, and internal investigations. Christina co-chairs Baker McKenzie's North American International Arbitration Group. She is recognized by Who's Who Legal (WWL) in Canada since 2020, and by WWL Arbitration globally since 2020. She was also recognized by The Legal 500 and Euromoney Expert Guides as a rising star for dispute resolution, by the C...
Tina Woodside is one of Canada's leading corporate and securities lawyers. A Toronto-based Gowling WLG partner with more than 25 years' experience, she can provide you with expert, strategic advice on corporate finance, M&A and corporate governance matters, with a particular focus on the natural resources and mining sectors. Passionate about helping clients succeed in achieving their goals, Tina is known for her strong business acumen and commitment to delivering excellent service. She is...
A lawyer in Ontario since 1977, with an added call qualification in Saskatchewan in 2021, Kenneth (Ken) Peel has been active nationally across Canada since 1983 in the railway & transportation sector as counsel, advisor and advocate. Formerly having served as General Counsel (Ontario) for CN, a North American Class 1 railway company, he rejoined private practice in January, 1998, & since 2009 has conducted his own practice (KRPLaw.ca). Ken’s advocacy & counsel has continued ...
Perry Dellelce is a founder and managing partner of Wildeboer Dellelce LLP, one of Canada’s leading corporate finance and transactional law firms. Perry practises in the areas of securities, corporate finance and mergers and acquisitions. Perry has been recognized in The Canadian Legal Lexpert® Directory as one of Canada’s leading practitioners in the areas of Technology Transactions and Global Mining. Prior to completing his law degree at the University of Ottawa, Perry holds...
John Mastoras is a senior partner in our Canadian employment and labour law group, and acts exclusively for employers. He is known to clients as a passionate and dedicated labour lawyer. He regularly litigates and provides strategic advice in connection with labour arbitrations, labour relations board disputes, collective bargaining negotiations, human rights proceedings, occupational health and safety charges, workplace insurance, labour injunctions and common law employment actions. His pra...
Bill has acted as strategic advisor to his clients on a wide range of work and business-related issues for over 25 years. As a senior lawyer, Bill provides practical and strategic advice to private and public sector employers in all matters related to wrongful dismissal, human rights complaints, employment standards claims, union organizing campaigns, collective bargaining, grievance arbitration and occupational health and safety. Employers and executives look to Bill for advice and direction...
Lindsay J. Wong is a top attorney recognized by Best Lawyers in the practice area(s) of Project Finance Law. Lindsay J., who practices law in Toronto, Ontario, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lindsay J. is held by other top lawyers in the same geographic and legal practice area.
Cheryl Labiris is a Partner in the Construction and Infrastructure Practice Group at Singleton Urquhart Reynolds Vogel LLP. She works exclusively in the Construction and Infrastructure Practice Group and has a very broad and diverse practice acting for all members in the construction pyramid including owners, general contractors, subcontractors/suppliers, sureties, architects, engineers, designers, and consultants on a vast range of construction claims including claims for delay, disruption, ...
Linda R. Rothstein is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative and Public Law, Alternative Dispute Resolution, Appellate Practice, Bet-the-Company Litigation, Class Action Litigation, Corporate and Commercial Litigation, Health Care Law and Labour and Employment Law. Linda R., who practices law in Toronto, Ontario, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Linda ...
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?
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.
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.
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.
US Tariff Uncertainty Throws Canada Into Legal Purgatory
by Bryan Driscoll
The message is clear: There is no returning to pre-2025 normalcy.
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.
The 2026 Best Lawyers Awards in Chile, Colombia and Puerto Rico
by Jamilla Tabbara
The region’s most highly regarded lawyers.
New Texas Family Laws Transform Navigating Divorce, Custody
by Bryan Driscoll
Reforms are sweeping, philosophically distinct and designed to change the way families operate.
What Is the Difference Between a Will and a Living Trust?
by Bryan Driscoll
A practical guide to wills, living trusts and how to choose the right plan for your estate.