About Osbourne Valentine LLP

Osbourne Valentine LLP is a Toronto family law firm built around resolving separation and divorce cases outside of court. Ryan Osbourne founded the practice as Osbourne Collaborative Law in 2020, after working as a downtown Toronto litigation lawyer. The firm is now known as Osbourne Valentine LLP, with Sean Valentine among its lawyers. Osbourne earned a Juris Doctor from Osgoode Hall Law School, and Valentine holds law degrees from the University of Windsor and the University of Detroit Mercy; both are trained in collaborative family law and are Accredited Family Mediators. The rest of the team brings a range of backgrounds: one lawyer has practised law since 1986, starting in Honda Canada's legal department before moving into criminal trial work and then family law, and another previously represented Children's Aid Societies in child protection proceedings.

The firm leans on mediation, negotiation and collaborative practice rather than default litigation, though its lawyers still appear in court, including the Ontario Court of Appeal, when a case cannot be settled. Its work covers separation and divorce, domestic contracts such as marriage and cohabitation agreements, family mediation, independent legal advice and unbundled services for clients handling part of their own matter, and wills and powers of attorney. Osbourne Valentine offers customizable flat fee pricing where possible, an approach meant to make costs more predictable from the start.

In the community

  • The firm publishes a blog for separated and divorced parents, with seasonal posts on topics such as summer parenting schedules, holiday planning and tax season paperwork for co-parents.
  • One of the firm's mediators is an instructor in York University's Family Mediation program.
  • One of the firm's lawyers has served since 2015 as an advisor to two Toronto area cultural groups, the Korean Canadian Symphony Orchestra and the Korean Canadian Chamber Orchestra.
  • The firm's site lists affiliations with Collaborative Divorce Toronto, the Family Dispute Resolution Institute of Ontario, and the Ontario Association of Collaborative Professionals.

Good to know

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Fees & payment

A price tag with a dollar signFlat fee

Where to find them

124 Merton Street, Suite 306, Toronto, Ontario M4S 2Z2 · 647-499-5565

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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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