About Mark

Mark Brender is a tax partner at Osler and leads the firm's Tax Group in Montreal, where he also heads the Private Client Group. He advises on intricate corporate reorganizations, tax planning for mergers and acquisitions, contentious tax disputes and sophisticated matters for private clients, earning a Band 1 ranking from Chambers in both corporate tax and private client work. Mark holds a fellowship with ACTEC and is recognized by the International Academy of Estate and Trust Law, and he chaired the Canadian Tax Foundation's Board of Governors in 2019. He co-edits a corporate tax planning feature for the Canadian Tax Journal and serves as editor-in-chief of a corporate structures journal published by Thomson Reuters. He is active on a joint taxation committee shared by the Canadian Bar Association and CPA Canada, and has won a national writing award for his analysis of anti-avoidance rules affecting corporate reorganizations.

Listing compiled from public sources in July 2026. Confirm Mark Brender’s licence and standing in the Law Society of Ontario directory ↗