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Morrisseau Art Consulting Inc. specializes in the investigation and examination of artworks attributed to the great Canadian Indigenous artist Norval Morrisseau. Its two principals are lawyer and art fraud expert Jonathan Sommer and Norval Morrisseau art expert and art fraud investigator John Zemanovich.




Jonathan J. Sommer B.A., M.A., LL.B., Q.Arb., is an Ontario-licensed lawyer and arbitrator with two decades of experience in litigation, intellectual property issues and general business law. Over the last decade his practice has focused on art fraud. He ran the investigation and litigation that led to the Hearn v McLeod case which is the subject of the recent film There Are No Fakes (2019), and he regularly represents victims of art fraud. He is also the author of the section on art fraud in the recent book Art Law: Cases and Controversies (2022), and is a frequent lecturer and media contact on art fraud law. Prior to becoming a lawyer, he was trained as a filmmaker and photographer.


COO and Norval Morrisseau Expert

John Zemanovich is an expert in the investigation and examination of Norval Morrisseau artworks. 
He is an artist, collector, former gallery owner, former member of the Norval Morrisseau Heritage Society and researcher and advisor on Morrisseau issues.
Over the last three decades, beginning as a Norval Morrisseau art collector, Mr. Zemanovich has provided consulting services to some of the most important Norval Morrisseau collectors, academics, museums, galleries, and to the Norval Morrisseau Estate, and he also provided information and evidence to Sommer Law, the firm that successfully represented the plaintiff in Hearn v McLeod, the case that widely exposed the Norval Morrisseau fraud. 

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