Liam C. O'Connor

Lauren Hanna is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Lauren, who practices law in Toronto, Ontario, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lauren is held by other top lawyers in the same geographic and legal practice area.

M. Elena Hoffstein, FEA, has a practice focused in all areas of estate planning, family business succession planning, corporate reorganization both pre and post mortem planning. She also advises on cross border and international matters, will, trusts and marriage contracts. Elena is also a recognized leader in charity law advising both charities and donors on effective legislative, tax and regulatory matters and on tax effective charitable gifting. Elena frequently advises clients on family b...

Krista Chaytor is an experienced litigator with a practice focused on business litigation.Krista has experience litigating a large number of business disputes, including those related to commercial leasing, construction, real estate, shareholder rights and remedies, and employment. Krista is adept at handling complex business litigation. She has appeared before all levels of Ontario courts, numerous tribunals and the Federal Court. Krista also has experience in alternative dispute resolution ...

Mrs. Demczur was called to the Ontario Bar in 1999, joined Carters in 2001 and became a partner in 2007. Her practice is exclusively focused in the areas of charity and not-for-profit law, including incorporation, charitable status applications, corporate restructuring, establishment of churches and religious denominations, international operations, gift planning, legal risk management reviews, charity pre-audit reviews and post-audit submissions to CRA, and advising directors of charities an...

Christopher Somerville is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation. Christopher, who practices law in Toronto, Ontario, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christopher is held by other top lawyers in the same geographic and legal practice area.

Donald K. Eady is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative and Public Law, Employee Benefits Law and Labour and Employment Law. Don's practice includes union-side labour, employment, human rights and administrative law, judicial review, and government relations. He has experience in all aspects of labour relations, collective bargaining, employment and human rights law, pension and benefits law, occupational health and safety, and workers’ comp...

Jennifer Teskey is Canadian managing partner, chair of our Canadian Management Committee and a member of our Global Executive Committee. She practises in corporate and commercial litigation, with an emphasis on class actions, securities, accounting, regulatory and energy-related matters. Clients represented by Ms. Teskey include professional regulators, pharmaceutical, financial services, manufacturing, transportation, technology and energy companies. She has appeared before all levels of Ont...

As a patent and trademark lawyer Toronto-based, Mark D. Penner’s practice focuses on all aspects of the acquisition, protection, enforcement and strategic use of a wide range of intellectual property assets in Canada and around the world. Acting for a range of clients, from individual inventors, start-ups and other early stage companies to large multinational companies, Mark provides strategic advice in a variety of technology areas, including biotechnology, chemistry, energy, social me...

Anthony O’Brien is a top attorney recognized by Best Lawyers in the practice area(s) of Class Action Litigation. Anthony, 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 Anthony is held by other top lawyers in the same geographic and legal practice area.

When police and other first responders are in trouble, they turn to Eugene Mazzuca. For more than 15 years, Eugene has been the first contact for provincial and municipal entities and their insurers accused of false arrest, excessive force, malicious prosecution, negligent investigation, defamation, personal injury, property damage and other serious torts. He also handles claims against security guards as well as roads liability cases and unusual and novel claims for municipal and provincial ...