Junior Sirivar, Toronto

About Junior

Junior’s practice focuses on high-stakes litigation and arbitration. He works with domestic and international clients to resolve their most complex disputes, with deep expertise across the financial services, mining, telecommunications and healthcare sectors.

Widely recognized as a leading trial counsel, Junior has appeared in some of the most significant recent commercial cases in Canada. He is also regularly retained as lead arbitration counsel in ad hoc and institutional international arbitrations in jurisdictions including Canada, South America and the European Union.

Junior has been recognized in numerous legal directories and rankings, including Chambers Global: The World's Leading Lawyers for Business, Chambers Canada, The Legal 500 Canada, The Canadian Legal Lexpert Directory, and Benchmark Canada: The Definitive Guide to Canada’s Leading Litigation Firms and Attorneys.

Select Experience

Among the recent notable cases that Junior has led as trial or arbitration counsel are:

The Toronto-Dominion Bank in a US$5.5-billion action arising from the collapse of Stanford International Bank
A diversified mining company in an international arbitration concerning an alleged breach of a US$350-million agreement before an ad hoc tribunal
An avionics contractor in an international arbitration concerning a breach of contract claim before an ICC International Court of Arbitration tribunal
A global iron ore producer in an arbitration concerning an alleged breach of contract claim before an ad hoc tribunal
A diversified global mining company in an international arbitration concerning an alleged breach of a royalty agreement before an ad hoc United Nations Commission on International Trade Law (UNCITRAL) tribunal

Awards & Recognition

Junior is consistently recognized as a leading trial and arbitration counsel in the following publications:

Chambers Canada: Canada’s Leading Lawyers for Business 2025 (Dispute Resolution: Arbitration – Nationwide)
Chambers Global: The World’s Leading Lawyers for Business 2024 (Dispute Resolution: Arbitration – Nationwide)
The Legal 500 Canada 2024 (Dispute Resolution: Ontario)
Benchmark Canada: The Definitive Guide to Canada’s Leading Litigation Firms and Attorneys 2024 (Litigation Star)
The Canadian Legal Lexpert Directory 2024 (Commercial Arbitration; Litigation - Corporate Commercial; Litigation - Directors' & Officers' Liability)
Lexpert Special Edition: Litigation 2024
Lexpert Special Edition: Energy and Mining 2024