Associate announcement

Thomson Rogers Welcomes Katryna Vergis-Mayo

October 1, 2020

Katryna joined Thomson Rogers in 2020 and is a member of the firm’s Planning & Municipal Law Group. Prior to joining Thomson Rogers, Katryna worked at the Ministry of Municipal Affairs and Housing where she gained experience working on municipal and planning law files. Her practice will focus primarily on municipal and planning law, in addition to expropriation matters.

Katryna graduated from Windsor Law in 2019. While completing her law degree, Katryna was the President of the Windsor Municipal and Planning Law Association, which held numerous events related to prevalent issues in the field. Katryna was also the recipient of several municipal/land use planning awards while at Windsor Law including the Max N. Mousseau, Q.C., Memorial Award in Municipal Law, the R. Lawrence DeShield Memorial Award in Municipal Law Studies, the Kellerman Family Bursaries and the Morris D. Baker Scholarship in Honour of Armando DeLuca.

Prior to law school, Katryna graduated from Ryerson University with a Bachelor in Urban and Regional Planning and subsequently went on to complete a Master of Spatial Analysis, also at Ryerson. She is currently in the process of becoming a Registered Professional Planner. Katryna is a member of the Ontario Professional Planners Institute and the Canadian Institute of Planners.

Outside of the office, when Katryna is not spending time with her dog Roxy, she is an avid baker, golfer and soccer player.

To learn more about Katryna’s practice please visit,

Thomson Rogers

Established in 1935, Thomson Rogers is a leading Ontario plaintiff litigation firm specializing in personal injury, medical malpractice, class action, municipal, expropriation and family litigation. Our personal injury group has a reputation for taking on the most complex and challenging litigation matters ranking as one of Canada’s Top 10 Personal Injury law firms. Our class action group deals with a complete array of mass tort cases in personal injury, product liability and institutional abuse. Our municipal law group is active in all areas of land development. Our family law group provides representation in family/matrimonial litigation. Our lawyers regularly argue cases before the Superior Court of Justice, the Ontario Court of Appeal and the Supreme Court of Canada. We advocate before administrative boards and tribunals across the Province, are leaders of major legal associations and active in the Ontario Trial Lawyers Association.

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Katryna Vergis-Mayo

Thomson Rogers

Law School

University of Windsor

Year Of Call


Area Of Practice