Rosen Sack LLP
Automatically compiled listing. Details may contain errors.7 lawyers · City of Toronto
One of 2,273 law firms listed in Toronto, and one of 423 handling Family Law.
Virtual appointments
Virtual appointmentsAbout Rosen Sack LLP
Rosen Sack LLP is a Toronto firm concentrated in family law, estate and capacity litigation, and professional negligence defence for lawyers and their insurers, with mediation and arbitration offered across those areas. Founding partners Avra Rosen and Susan Sack were each called to the Ontario bar in 1987 and later brought their separate practice experience together to start Rosen Sack LLP in 2016. The firm has since grown to include several more partners and lawyers working across the same core areas.
The firm is designated Preferred Counsel for the Lawyers' Professional Indemnity Company, the professional liability insurer for Ontario lawyers, and its estate litigation group works alongside the family law team on cases that touch both areas. Avra Rosen is a Law Society of Ontario Certified Specialist in family law and an accredited family mediator, and is a founding member of The Minerva Group, an association of senior Toronto family law lawyers. The office is at Yonge and St. Clair in midtown Toronto.
Practice areas
Our guide: How to Hire a Family Lawyer in Toronto
Our guide: How to Get a Divorce in Ontario
In the community
- Avra Rosen served as President of Holy Blossom Temple, described on the firm's site as the largest Reform Jewish synagogue in Canada, from 2019 to 2022.
- Susan Sack has been involved with Holy Blossom Temple's Out of the Cold program.
- A partner at the firm volunteers annually with the Walsh Family Law Moot and Negotiation Competition, mentoring law students.
Good to know
Wheelchair accessible
Woman-owned
LGBTQ+ friendly
Parking available
Virtual appointments
In-person servicesLawyers 7
Certified Specialists
A designation granted by the Law Society of Ontario, not a self-declared area of focus.
This firm’s lawyers at a glance
- Called to the bar
- 1987–2022 · median 13 years in practice 6 of 7 lawyers
- Law schools
- Osgoode Hall Law School, University of Ottawa 2 of 7 lawyers
- Languages on the roster
- Hebrew, Russian
Who handles what
Where to find them
2 St. Clair Avenue West, Suite 500, Toronto, ON M4V 1L5 · 416-214-1200
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Real Estate LawFamily LawThis 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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