Litigation & Business Disputes
Strategic advocacy on complex civil and commercial matters across Ontario.
Trial and appellate litigator combining civil litigation strategy with a corporate–commercial perspective. Focus on defamation, shareholder & oppression disputes, urgent commercial remedies, and reputation management.
Denis Grigoras represents clients in complex litigation and business disputes across Ontario. He brings broad courtroom experience to matters that demand careful strategy and decisive advocacy. Denis advises on defamation, shareholder and oppression disputes, urgent commercial remedies, and reputation-sensitive matters. Clients value his clear guidance, strategic focus, and disciplined preparation, whether navigating fast-moving motions or sustained proceedings. In every mandate, he delivers persuasive advocacy, practical judgment, and a commitment to achieving effective outcomes in challenging legal environments.
Strategic advocacy on complex civil and commercial matters across Ontario.
Anti-SLAPP, media strategy, and reputation-sensitive disputes.
Remedies for unfair prejudice, governance disputes, and buy-out strategies.
Injunctions, preservation orders, and focused motions on short timelines.
Negotiation, mediation, and arbitral process tailored to risk and outcome.
Disciplined records, focused facta, and clear oral submissions in Ontario courts.
Lawyer
Background
Denis is a multifaceted lawyer whose practice encompasses sophisticated commercial litigation, defamation claims, and intricate business and real estate transactions. He regularly serves as lead counsel in complex litigation matters, combining strategic advocacy with skilled negotiation to effectively structure and close commercial deals involving multiple parties and stakeholders.
Practice Areas
Denis regularly acts as lead counsel in significant commercial litigation matters, complex defamation disputes, and sophisticated business transactions, providing strategic guidance and advocacy to achieve client goals.
Education
Counsel for defendants on a successful anti-SLAPP motion in a defamation action concerning tweets (original and reposted) and related newspaper comments.
Counsel to Missouri-based LLCs defending Ontario claims alleging civil conspiracy, misrepresentation, and breach of the duty of honest and good-faith performance. Parallel Missouri proceedings raised forum non conveniens, which proved decisive.
Acted for a Southwestern Ontario trucking company in its multi-million-dollar asset sale to a national logistics provider.
Counsel to Michigan-based individuals in resolving a dispute with an Ontario company claiming liquidated damages. Matter involved a consumer “future performance agreement” under Ontario’s Consumer Protection Act.
Achieved a substantial settlement for a client injured in a ski-hill zip-lining accident. Issues centered on the enforceability of liability waivers.
Successfully argued a motion to consolidate two separate breach-of-privacy claims from different jurisdictions against common defendants, based on shared factual and legal issues.
Obtained a stay of a solicitor’s assessment due to a clause requiring fee disputes to be arbitrated under the ADR Chambers Regular Arbitration Rules.
Provided strategic counsel in responding to significant media scrutiny regarding a client’s government contract.
Counsel to clients facing sensitive, high-stakes allegations of historical sexual abuse.
Resolved a dispute concerning repayment of a significant loan secured by a promissory note issued by a publicly traded company.
Counsel to clients in a claim against neighbouring parties and others for actions constituting nuisance.
Counsel in a defamation claim stemming from a disputed dismissal following allegations of sexual misconduct.
Counsel in a defamation claim arising from a contentious municipal election campaign.
Counsel to the family of a deceased individual in a civil claim against an intoxicated driver who was criminally convicted.
Counsel to a farming client in a nuisance and Environmental Protection Act claim against a neighbour whose herbicide use caused extensive crop damage.
Counsel to a client in a Consumer Protection Act claim against a shipper arising from the failed international shipment of luxury vehicles.
Defence of a longstanding agricultural and energy co-operative in an oppression application arising from a disputed commercial venture.
Counsel to the defendant in a high-profile personal injury lawsuit involving allegations of disease transmission during a professional wrestling event.
Acted for a real estate development entity in a $47.5-million land acquisition, including negotiation of a put option to acquire a private hospital for $13 million.
Counsel on a family law motion successfully seeking a declaration that proceedings were a nullity, dismissal or stay under the Bankruptcy and Insolvency Act, and discharge of a certificate of pending litigation obtained ex parte.
Denis acts for businesses and individuals in complex commercial disputes, defamation matters, and sophisticated transactions. He brings clear advice on strategy, timing, and cost, and delivers focused advocacy in motions, trials, and appeals. When the right move is a deal—not a fight—he structures and closes transactions with disciplined execution.
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