• LLB, 1976
    Osgoode Hall Law School at York University
  • BA, 1973
    University of Toronto

Year of Call/Admission

  • Ontario, 1978

Languages Spoken

  • English

William K. Orr

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+1 416 865 4360
+1 416 364 7813 (fax)
+1 514 397 5246
+1 514 397 7600 (fax)

William Orr focuses his practice on corporate governance and has acted for many boards of directors and independent committees of boards. Bill specializes in securities regulation including multi-national transactions in Canada, the United States, the United Kingdom and other countries. He is a recognized expert in public and private financing, private placements, takeover bids, mergers and acquisitions, going-private transactions, corporate governance, restructurings, and stock exchange and securities enforcement issues. His clients include boards and independent committees of boards of directors, public companies, investment dealers and institutional investors.

Among his current mandates, Bill serves as independent counsel to the Board of OMERS Administration Corporation. 

Bill has taught securities regulation and business law courses at Queen's University, Osgoode Hall Law School, McGill University and the University of Toronto.  In 1985 he co-authored a book, Private Placements in Canada, published by Carswell.

Honours and Awards

  • Canadian Legal Lexpert Directory 2013-2017 for Corporate Finance & Securities, Corporate Commercial Law, Corporate Mid-Market, Mergers & Acquisitions and Private Equity
  • Fellow, The American College of Governance Counsel
  • Legal 500 Canada 2014 for Corporate and M&A
  • IFLR1000 Financial and Corporate Law Firm Rankings guide 2014-2016 for Mergers and Acquisitions
  • Chambers Global 2012-2017 for Corporate/M&A
  • Chambers Canada 2016 and 2017 for Corporate/Commercial: Ontario
  • Chambers Canada 2018 for Litigation: General Commercial: British Columbia
  • The Best Lawyers in Canada 2011-2018 for Corporate Governance, Corporate Law, Mergers & Acquisitions Law, Securities Law
  • The Lexpert Guide to the Leading US/Canada Cross-Border Corporate Lawyers in Canada 2014 for Corporate Finance & Securities and Mergers & Acquisitions
  • Canadian Legal Lexpert Directory 2010-2012 for Corporate Finance & Securities, Corporate Commercial Law, Corporate Mid-Market and Mergers & Acquisitions
  • The Lexpert/American Lawyer Guide to the Leading 500 Lawyers in Canada as one of the country's top lawyers in Corporate Commercial, Corporate Finance and M&A
  • Who's Who Legal for Corporate Governance
  • Martindale-Hubbell "AV" rating
  • International Financial Law Review for Capital Markets
  • Who's Who Legal: Canada 2016 for Life Sciences and 2016 for Corporate Governance

Community Involvement

Bill has served on a number of community and charitable boards of directors, including:

  • President, Family Service Association of Metropolitan Toronto
  • Chair, Board of Trustees, Trinity College, University of Toronto
  • Chair, Board of Directors, Dellcrest Children's Centre
  • Member, College of Electors of the University of Toronto
  • Director and Honourary Counsel, The Duke of Edinburgh's Award – Young Canadians Challenge


  • ICD.D designation from the Institute of Corporate Directors
  • Board of Directors, Institute of Corporate Directors