About Marc

Marc S. Tannenbaum is counsel and a former partner at KMB Law, where he headed the family law group for 25 years before stepping back to focus on his mediation practice. He has 34 years of experience in family law, including significant property disputes, business interests, and custody and support claims, and negotiates domestic contracts such as separation and cohabitation agreements. He trained as a mediator at Harvard Law School and now focuses on helping parties reach amicable, non-adversarial resolutions of family law disputes.

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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 Marc S. Tannenbaum’s licence and standing in the Law Society of Ontario directory ↗

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