About Niman Mamo LLP

Niman Mamo LLP is a Toronto family law firm with a practice restricted entirely to family law work: divorce, property division, parenting and custody, child and spousal support, marriage contracts, cohabitation agreements, adoption, and child protection. Founding partners Richard Niman and Christopher Mamo lead a team of six partners, along with associates and law clerks, from an office on University Avenue in downtown Toronto. Niman was called to the bar in 2011 after completing a joint JD/LLB program through the University of Ottawa and Michigan State University College of Law, and developed a family law focus after joining Niman Gelgoot and Associates LLP in 2014.

Mamo, a Gold Medal graduate of Wilfrid Laurier University who also studied at Western University, trained in dispute resolution and collaborative practice, and works on complex financial disputes and high conflict parenting cases. Harold Niman, who joined the firm as counsel, is a Fellow of the American College of Trial Lawyers with trial experience reaching the Supreme Court of Canada.

In the community

  • Richard Niman volunteers with Camp Kirk, a program supporting children with learning disabilities, ADHD, and autism.
  • Harold Niman has taught the Ontario bar admission course and contributed to Osgoode Hall Law School's Intensive Family Law and Trial Practice programs.
  • Harold Niman co-chaired the Six-Minute Family Law Lawyer and Ten-Minute Family Law Judge continuing legal education programs.

Good to know

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This firm’s lawyers at a glance

Called to the bar
2011–2025 · median 6 years in practice 8 of 22 lawyers
Law schools
Queen's University, University of Ottawa, University of Toronto, University of Windsor, University of Windsor Law 5 of 22 lawyers
Languages on the roster
English, French, Romanian, Spanish

Where to find them

480 University Avenue, Suite 1503, Toronto, ON M5G 1V2 · 416-324-5522

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

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