Matthew R. Alter

Partner at Cassels Brock & Blackwell LLP

Matthew Alter is a distinguished partner at Cassels, where he serves as Chair of the Construction Group. With a focus on construction disputes, Matthew expertly handles cases involving bid disputes, contractor defaults, delays, liens, trust, and bond claims. His proficiency extends to drafting and negotiating contracts and tenders for both domestic and international projects. Certified by the LSO as a Specialist in Construction Law, he is a Fellow and Past President of the Canadian College of Construction Lawyers (CCCL) and has held significant editorial responsibilities as former Editor of the CCCL’s Journal.

Having led various esteemed organizations, Matthew is a former Chair of the International Construction Division of the ABA’s Forum on Construction Law and the OBA’s Construction and Infrastructure Law Section. His scholarly contributions are noteworthy, with numerous articles and publications to his name, including the Practical Law Guide — Construction and Projects in Canada: Overview (Thomson Reuters, 2015–2023) and the third edition of Kirsh and Alter: A Guide to Construction Liens in Ontario. A sought-after speaker, Matthew regularly shares his insights at seminars and conferences.

Renowned for his legal acumen, Matthew boasts a Martindale-Hubbell AV preeminent peer review rating and international recognition as a leading lawyer by Chambers, Best Lawyers (honored as the 2018 Public Procurement Lawyer of the Year – Toronto), and Who’s Who Legal. Additionally, he is listed in The Lexpert/American Lawyer Guide to the Leading 500 Lawyers in Canada.

Year of Call to Bar: 1987 (ON)

Contact Information:

Phone: (416) 860-6764

Fax: (416) 640-3083

Email: [email protected]

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