Strategic Advocacy for Complex Business DisputesCross-Border LitigationShareholder DisputesInternational Arbitration

Trusted counsel for commercial litigation. Practical, strategic, and resolution-focused.

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17+ Years Experience

Dedicated to resolving complex legal disputes

Partner at Cambridge LLP

Backed by an award-winning, pre-eminent law firm

Qualified Arbitrator (Q.Arb)

Gold-standard training for strategic resolution

Proven Courtroom Advocate

Appears before the Ontario Superior Court & Court of Appeal.

A Focused Practice for Complex Disputes

Commercial & Business Litigation

Resolving complex breach of contract issues, joint venture breakdowns, franchisee claims, and other corporate disputes.

Resolving your complex business disputes

Cross-Border & International Disputes

Specialized expertise in enforcing foreign judgments in Canada, international arbitration, and managing Canada-US business litigation.

Protecting your corporate interests

Defamation Litigation

Representing individuals and businesses in libel, slander, and online defamation disputes. Strategic counsel for injunctions, take-down requests, and protecting reputation from damaging statements.

Protecting your reputation and business

Construction Litigation

Representing owners, contractors, and suppliers in all facets of construction law, including lien claims, delay disputes, and breach of trust.

Counsel for lien, contract, and delay claims

Debt Collection

Representing businesses in commercial debt recovery, judgment enforcement, garnishments, and creditor remedies to protect cash flow.

Strategies to recover what you are owed

Mortgage Enforcement

Advising lenders and property owners on foreclosure actions, power of sale proceedings, and remedies for default in secured lending.

Protecting your interests in real estate disputes

Partner-level experience, client-focused results

About Ruzbeh Hosseini

Ruzbeh Hosseini is a partner at Cambridge LLP, leading complex files within the firm’s Business and Cross-Border Litigation Groups. With extensive experience before the Ontario Superior Court of Justice and the Court of Appeal, Ruzbeh is the advocate clients trust with their most critical disputes.

His practice is focused on commercial litigation, with specific expertise in shareholder/partnership conflicts, construction litigation, and complex contract disputes. As a Qualified Arbitrator (Q.Arb), Ruzbeh provides a practical, strategic, and assertive approach to dispute resolution, whether in the courtroom, mediation, or arbitration.

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