Arlene O'Neill

Arlene O'Neill


Arlene O'Neill
Contact Information

Arlene O'Neill


T 416.865.6640

F 416.865.6636



University of Western Ontario, LL.B., 1993
York University, BBA (Hons), 1990
Bar Admission

Ontario, 1995
About Gardiner Roberts LLP

For over 100 years, Gardiner Roberts has combined the benefits of a full-service law firm with the dexterity of a mid-sized one. Our focused, cross-disciplinary, one-team approach and commitment to understand your business joins our relevant expertise, immediacy and dedication to providing client-centric, hands-on service. 100% Canadian and fully independent, we offer a level of overall efficiency and cost-effectiveness that larger firms can't touch. Resisting "cookie-cutter" law, Gardiner Roberts has built its name - one rewarding client relationship at a time.

Executive Summary

Arlene has developed a broad range of expertise in the areas of corporate and commercial law, with a strong focus on merger and acquisition transactions, corporate governance and corporate finance. Arlene works extensively with technology based companies and assets including software, media and green technology. While Arlene maintains a mix of practice areas in commercial law, she has focused her practice on mergers and acquisitions and technology law.

Arlene is a frequent speaker and organizer of a broad range of corporate law programs held by Ontario Bar Association Business Law Section as well as other private equity events. Arlene is very involved in working with technology based and innovative businesses grow their business and provide sound legal advice to assist them to grow smart.  From the drafting of letters on intent, through the negotiation of the merger or purchase and sale agreement and the conduct of due diligence investigations, to the closing of the transaction, Arlene applies her energy and experience. At all times, she is able to call upon her familiarity with her tax law and technology law background.


Representative Work
  • Represented the buyers in a merger and acquisition transaction involving the purchase of a large carpet and tile supply and installation partnership with combined annual revenue of approximately $100 million.
  • Represented a water infrastructure business in its acquisition of a water services business to expand the European operations.
  • Represented one party to a joint venture in structuring a joint venture arrangement in the mobile payments platform area in connection with a response to an RFP
  • Representing a client in various financing transactions both short and long term in the solar power space.
Articles and Presentations

  • Course leader for the Business Law Program at Ryerson LPP, 2014-2016
  • Chair, Business Law Summit 2015, Shaping the Agenda for Reform, OBA, Oct 2015
  • Chair of Various Programs for Ontario Bar Association relating to Business Law Matters
  • Speaker, Legal Strategies for Building Corporate Value and Protecting Innovation Canadian Innovation Exchange (CIX), Nov 2014
  • Assets Acquisitions in Ontario: Buying Liability in Bulk


Board Memberships
  • CIX Advisory Board Member, 2015
  • Board member of Canada’s National Ballet School Foundation
  • Board member of Hot Docs (honorary)
  • Canadian Women’s Foundation – Toronto Breakfast Committee Deputy Chair, 2000-2015
Professional Involvement
  • Chair of the Corporate Law Subcommittee – OBA Business Law Section
  • Member of Ontario’s Business Law Advisory Council – Ministry of Government and
    Consumer Services, 2016, 2017
  • Chair of the Not-for Profit Working Group – Ontario’s Business Law Advisory Council
  • A past Chair of the Ontario Bar Association – Business Law Section
  • Ontario Bar Association, Business Law
  • Canadian Venture Capital Association
Community Involvement
  • Ryerson LPP Program
  • Canada’s National Ballet School Foundation
  • Canadian Women’s Foundation