About Mark
Mark serves as litigation counsel to GMA and brings decades of courtroom experience to his files. He advocates for clients who believe they have been wronged, offering direct advice and determined representation regardless of the stakes involved. His practice includes condominium law among other litigation matters. Mark represented the families of Canadian victims after Iranian authorities shot down Ukraine International Airlines Flight PS752, and he secured a judgment of $107,000,000 against Iran on their behalf.
Practice areas
Listing compiled from public sources in August 2026. Confirm Mark Arnold’s licence and standing in the Law Society of Ontario directory ↗