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
Koskie Minsky Welcomes Associate Sean Fattah
November 13, 2024
Sean is an associate in the Civil Litigation group with a practice focused on construction related disputes.
Prior to joining Koskie Minsky, Sean practiced at a prominent litigation firm in Toronto focusing on construction law and professional liability defence.
Sean has appeared before various levels of courts in Ontario, as well as multiple tribunals including the Professional Engineers Ontario’s Discipline Committee.
He graduated Cum Laude from the University of Ottawa’s Common Law Program, and has obtained a Certificate in Construction Law from the Osgoode Professional Development program.
Sean works closely with clients and endeavors to provide clear and strategic advice, in hopes of achieving practical, efficient, and timely outcomes.
Welcome Sean!
Koskie Minsky is a dynamic mid-sized law firm located in the heart of downtown Toronto. We have established a unique position and reputation in the Canadian legal community, with recognition of our plaintiff-side class actions, civil litigation expertise in the areas of professional liability defence, commercial litigation, construction litigation, employment litigation as well as public and private sector pensions & benefits and union-side labour relations.
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Mathews Dinsdale is pleased to announce that Keira Ostrosser has joined the Firm as an Associate in our Calgary Office.
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