Mathews Dinsdale Welcomes Keira Ostrosser to the Firm
Mathews Dinsdale is pleased to announce that Keira Ostrosser has joined the Firm as an Associate in our Calgary Office.
September 11, 2026
Associate announcement
Thomas Gold Pettingill LLP Welcomes Sara Baum as an Associate
January 8, 2020
Sara Baum joined Thomas Gold Pettingill LLP in 2019 after articling with an insurance defence boutique in Toronto, where she gained experience in civil litigation. Sara’s current practice focuses on the defence of tort claims and statutory accident benefits.
Sara received her J.D. degree from Queen’s University, graduating on the Dean’s Honour List in 2018. While at law school, Sara volunteered as a caseworker with Queen’s Legal Aid, representing low-income Kingston residents. She previously obtained a B.Sc. (Honours) in Kinesiology from the University of Western Ontario.
Thomas Gold Pettingill LLP is a preeminent litigation law firm focusing on complex insurance disputes. The firm represents insurance companies in the defence of significant claims and provides insurance coverage advice to insurers corporate policyholders.
View All Announcements by This Firm
Mathews Dinsdale is pleased to announce that Keira Ostrosser has joined the Firm as an Associate in our Calgary Office.
September 11, 2026
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September 9, 2026