About David

David Wagner is a partner at Wagner Sidlofsky LLP with substantial experience in both commercial and estate litigation. On the commercial side, his work often involves shareholder disputes, oppression claims, contract disputes, and tort claims, while on the estate side he handles will challenges, executor removal applications, disputes over accounting, and challenges to powers of attorney and guardianship. As a mediator, David focuses on estate litigation and guardianship disputes, taking a practical approach to help parties identify what is really blocking resolution. He is a frequent speaker and writer on CPD programs, and the Alberta Court of Appeal has cited an article he wrote in its Brodylo Estate decision. He regularly speaks at the Law Society of Ontario's Trust and Estate Summit, OsgoodePD's Estate Litigation certificate program, and conferences hosted by the Canadian Tax Foundation.

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This listing was generated by AI from public sources in September 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on their firm’s website. Confirm David Wagner’s licence and standing in the Law Society of Ontario directory ↗

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