Charles B. Ticker

Andrew J. Wilder is a top attorney recognized by Best Lawyers in the practice area(s) of Cannabis Law and Corporate Law. Andrew 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 Andrew J. is held by other top lawyers in the same geographic and legal practice area.

Lonny Rosen is a founding partner of the Toronto, Ontario health and regulatory law firm Rosen Sunshine LLP. He has been certified by the Law Society of Ontario as a Specialist in Health Law. Lonny advises on a wide variety of health and regulatory law issues. His clients include health care professionals, administrators of health care facilities, professional associations, and individuals. He represents clients in a range of civil and administrative proceedings, including in complaint and di...

Jenna Wilson is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Jenna, who practices law in Toronto, Ontario, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jenna is held by other top lawyers in the same geographic and legal practice area.

Valarie Matthews is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Valarie, 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 Valarie is held by other top lawyers in the same geographic and legal practice area.

Paul Morrison is a partner in our litigation group. He has a national reputation as one of Canada’s leading counsel in complex corporate and commercial litigation, including class action litigation, securities litigation, competition litigation, insolvency litigation, professional liability, products liability and domestic and international arbitration. Paul regularly acts on behalf of leading companies and institutions, both foreign and domestic, and has appeared at all levels of trial...

Brian Pukier is a partner in the Corporate Group, whose practice is focused primarily on cross-border M&A, private equity investments, corporate finance transactions, complex corporate reorganizations and public policy. He is also called upon by his clients to advise them on corporate governance and crisis management issues. Brian is widely recognized as one of the country’s leading corporate and M&A lawyers. He has extensive experience in counselling senior management and the b...

Sergio R. Karas, B.A., J.D.. , is a Canadian lawyer (Barrister and Solicitor) Certified Specialist in Canadian Citizenship and Immigration Law by the Law Society of Ontario, and internationally recognized expert in Canadian immigration law. Born in Buenos Aires, Argentina, Mr. Karas has helped hundreds of people successfully establish themselves in Canada. He has been involved with many widely reported, high-profile cases. He represents individuals and multinational corporations to achieve th...

In 2003, the Minister of Finance of Ontario selected David MacDonald from personal injury lawyers in the province as the authorized representative for injured persons and appointed him to be a member of the Executive Committee to the Superintendent of Insurance for the Province of Ontario’s Auto Reforms Implementation Committee. In this role, he advocates to the government of Ontario and its Ministries on behalf of persons injured in motor vehicle accidents. David’s practice is ex...

Marni Whitaker is a partner practicing with Loopstra Nixon’s Wills, Trusts & Estates and Business Law groups. Marni has extensive experience in all aspects of estate planning and administration including drafting and giving opinions on wills, powers of attorney, trusts, corporate reorganizations associated with estate planning, personal tax advice, advice and documentation relating to the Family Law Act , administration of estates, estate accounting problems, work for charitable and...

Ingrid VanderElst is co-chair of the Ontario region’s Life Sciences group. Regularly assisting clients in the health products and related service industries, Ingrid advises on regulatory and intellectual property issues. Clients include pharmaceutical, natural health product, medical device, cosmetic and food manufacturers, as well as pharmacy and laboratory services providers and agri-business operators. On the regulatory side, Ingrid has assisted clients with product licensing, establ...