William S. Maslechko

Practice Focus

  • Securities and Corporate Law
    • Capital markets
    • Mergers and acquisitions
    • Corporate governance
    • Shareholder activism
    • Advising a broad range of clients including both TSX Venture Exchange and TSX listed issuers and national and regional investment dealers

Practice Areas


  • University of Toronto, Bachelor of Laws, 1985

Bar Admission

  • Alberta 1991
  • Ontario 1987

Professional Associations

  • Member, Law Society of Alberta
  • Member, Canadian Bar Association

Honours & Recognition

  • Named in the Lexpert/American Lawyer Guide to the Leading 500 Lawyers in Canada in the area of Mergers & Acquisitions in 2004-2011, 2014-2015 and 2018-2019, and in the area of Corporate Mid-Market, 2020
  • Named in The Legal 500 Canada as a leading lawyer in Corporate and M&A, 2018-2021
  • Named in Chambers Canada as a leading lawyer in Corporate and Commercial (Alberta), 2016-2020
  • Named in Lexpert's Special Edition Canada's Leading Energy Lawyers, 2020
  • Named as Best Lawyers in Canada's Calgary Lawyer of the Year in Corporate Law, 2018
  • Named in Who's Who Legal: Canada in the area of Corporate Law, 2018, in Energy, 2018 and in Capital Markets, annually since 2010
  • Named in Who's Who Legal, the International Who's Who of Business Lawyers, in the area of Capital Markets, 2010-2013 and in the area of Energy, 2018
  • Named in Lexpert's Special Edition Canada's Leading Corporate Lawyers, annually since 2013
  • Named in Lexpert's Guide to the Leading US/Canada Cross Border Corporate Lawyers in Canada, 2013-2016
  • Named in Chambers Global Client's Guide to World's Leading Lawyers for Business, in the area of Corporate/M&A, 2006-2015
  • Named in Best Lawyers in Canada as a recommended lawyer in the areas of Corporate Law and Mergers and Acquisitions Law annually since 2006
  • Named in the Canadian Legal Lexpert Directory as a leading practitioner in Canada in the areas of Mergers & Acquisitions and Corporate Finance & Securities annually since 2002, in the area of Corporate Commercial annually since 2004 and in the area of Corporate Mid-Market annually since 2007
  • Named in Legal Media's Expert Guide to the World's Leading Lawyers in M&A, 2013-2017


  • Lecturer at public seminars in the areas of securities law, corporate finance and mergers and acquisitions