Matthew Sammon

Matthew Sammon, serving as a partner at Lenczner Slaght, is lauded by Chambers Canada as a litigator of exceptional courage and determination, renowned for his robust representation in challenging cases.

His reputation as a top-tier trial counsel is built on a foundation of wide-ranging litigation expertise. This includes tackling complex corporate and commercial litigation, navigating the intricacies of professional liability and medical malpractice, and managing employment disputes.

With two decades of service at Lenczner Slaght, Matthew stands among the most seasoned civil trial attorneys of his generation. His litigation portfolio is extensive, covering trials, applications, and arbitrations in diverse areas such as infrastructure and construction, intricate commercial matters, insurance disputes, medical litigation, professional liability issues, and employment conflicts.

Matthew's role as lead counsel in significant infrastructure and construction disputes within Ontario and beyond has positioned him as a foremost authority in Canada's infrastructure law landscape.

His client base spans a vast array of industries, including but not limited to construction, financial services, insurance, banking, telecommunications, retail, health care, manufacturing, hospitality, and oil and gas. Matthew is also known for his skilled representation of executives and individuals in both civil and regulatory disputes.

His proficiency extends to professional regulation and medical malpractice litigation, where he frequently serves as lead counsel in complex cases and regulatory proceedings.

His practice areas encompass appeals, arbitration, class actions, commercial litigation, construction and infrastructure, defamation and media, employment, trusts and estates litigation, insurance, and professional liability and regulation. Matthew was admitted to the Ontario Bar in 2002 after completing his JD with Honours at the University of Toronto in 2001, following an MA from the same university in 1998 and a BA with Highest Honours from Carleton University in 1997.