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Iris Antonios

Iris Antonios
Iris Antonios Partner | Toronto
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Recent representative matters include:

  • Advising Canadian companies in international arbitrations

  • Advising the Canadian subsidiaries of multinational companies in connection with potential investor claims under international treaties

  • Co-counsel to a technology and power transmission company in a large arbitration arising from a dispute relating to the construction of converter stations

  • Advising companies in the oil and gas sector on investment treaty considerations in relation to provincial government measures

  • Co-counsel to a client in defence of a third-party claim relating to contaminated lands

  • Co-counsel to a client in defence of a third-party claim relating to an environmental impact assessment study

  • Co-counsel to clients in various industries undertaking workplace investigations, both internal and in response to regulatory investigations

  • Co-counsel to the owner of an energy plant in a complex multi-party construction litigation involving several interrelated court actions

  • Co-counsel to a supplier of industrial gases in a contract dispute with a distributor

  • Co-counsel to a mining and natural resources company in an appeal of a decision of the Ontario Mining and Lands Commissioner relating to an easement over unpatented mining claims

  • Co-counsel in an arbitration of disputes under right-of-way agreements between governmental corporations and energy pipeline companies

  • Co-counsel in an arbitration of disputes between two air carriers over payments to be made under a capacity purchase agreement

  • Co-counsel to a mining and natural resources company in a judicial review application related to a federal environmental assessment

Awards & Recognition

Iris has been recognized as a leading lawyer in the following publication:

  • Benchmark 40 & Under Hot List – Canada 2020

Professional Activities

Iris is a member of the Canadian and Ontario Bar Associations and The Advocates' Society.

Professional Appearances
  • Co-speaker: Navigating CUSMA: Webcast Series - Protecting Cross-Border Investment in North America Under CUSMA
    Blakes Business Class Webcast, Toronto, Ontario, July 23, 2020.
  • Panellist: Virtual Reality: Experiences of Remote Arbitration
    Blakes Business Class Webinar, June 25, 2020.
  • Panellist: Virtual Arbitrations - Experience to Date & What the Future Holds
    Toronto Commercial Arbitration Society webcast, June 9, 2020.
  • Co-speaker: Mandatory Injunctions and Norwich Orders
    Ontario Bar Association, Toronto, Ontario, December 11, 2019.
  • Speaker: Perils of Permitting and Update on Recent Developments in Environmental Law
    Blakes Business Class Seminar, Toronto, Ontario, December 5, 2019.
  • Speaker: Managing Environmental Enterprise Risk
    Blakes Business Class Seminar, Toronto, November 14, 2018.
Media Activities
  • Quoted: Proposed rule changes could speed up investor-state dispute arbitration
    Law Times, May 31, 2019.
Admitted to the Ontario Bar - 2009
I.B.B.A., York University, Schulich School of Business - 2005
J.D., University of Toronto - 2008
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