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Arthur Fish



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Arthur Fish is a partner in the Tax group in the Toronto office of Borden Ladner Gervais LLP and the Manager of the Toronto Regional Family Wealth Counsel Practice. Arthur advises commercial fiduciaries on a wide range of issues. He has expertise in:

  • mental capacity and estate law
  • mental capacity and substitute decision making
  • the creation and operation of commercial trusts
  • charities and estate planning and administration

He has planned and administered a number of large estates for high net worth Canadian families.

Arthur also acts as a mediator in estate, trust and guardianship disputes.


  • Assisted a family with very substantial assets in developing a structure that allowed the family to repair frayed relationships by adopting a structured approach to consultation and decision-making.
  • Assisted a number of families in completing the efficient administration of bankrupt estates.
  • Developed a patient and persistent approach to mediating complex disputes that has resulted in successfully resolving a number of very bitter, multi-party disputes.
  • Assisted in establishing several charitable and not-for-profit structures that provided for overseas operations or the ownership and operation of related businesses.
  • Assisted in developing effective strategies for updating or repairing commercial trusts – without any need for litigation - that were inadequate to meet contemporary needs.
  • Acted for individual and corporate donors who have made large bequests to charity, and for charities that are receiving such bequests.
  • Acts for people with disabilities, and for families with disabled relatives. He recently assisted a number of families in developing creative estate plans that protected assets without compromising individual independence.
  • Advises people on crises arising from a relative’s mental illness, drug abuse or alcoholism.

Beyond Our Walls

Professional Involvement

  • Former Member of Ontario's Consent and Capacity Board.
  • Former Chair of the Ontario Mental Health Foundation

Awards & Recognitions

  • Selected by peers for inclusion in the 2022 edition (and since 2016) of The Best Lawyers in Canada® (Trusts and Estates).
  • Recognized in the 2021 edition (and since 2012) of The Canadian Legal Lexpert® Directory (Estate & Personal Tax Planning).
  • Recognized in the 2018 edition (and since 2017) of Chambers High Net Worth (Private Wealth Law).
  • Recognized in the 2016 edition of the Chambers Canada — Canada's Leading Lawyers for Business (Private Client) (Band 2).

Bar Admission & Education

  • Ontario, 1985
  • Doctorate, University of Toronto Faculty of Law, 1993
  • B.C.L., Oxford University Wadham College, 1986
  • LLB, Faculté de droit Osgoode Hall de l'Université York, 1983