40 Temperance St, Suite 3200, Bay Adelaide Centre – North Tower, Toronto, ON
Year called to bar: 1987 (ON)
Matthew Alter is a senior partner at Cassels, specializing in construction and procurement law. He represents clients in construction disputes, including bid disputes, contractor defaults, delay, lien, trust, and bond claims, and also drafts and negotiates contracts and tenders for 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 former Editor of the CCCL's Journal. He is also a past Chair of the International Construction Division of the ABA's Forum on Construction Law and of the OBA's Construction and Infrastructure Law Section. He has authored and co-authored numerous articles and publications, including Practical Law Guide — Construction and Projects in Canada: Overview (Thomson Reuters, 2015–2023) and Kirsh and Alter: A Guide to Construction Liens in Ontario (3d Ed.), and is a frequent speaker at seminars and conferences. Matthew holds a Band 1 ranking from Chambers Canada and a Martindale-Hubbell AV preeminent peer review rating, and has been recognized for 18 consecutive years in Best Lawyers.
