About Douglas D. Buchmayer

Estates are the heart of Douglas Buchmayer's work, from the plan a client puts in place, through the administration that follows a death, to the litigation that sometimes comes after. Douglas is a partner at Gowling WLG in Ottawa, and the matters run from wills, powers of attorney and family trusts to Henson Trusts, cottage and business succession, will challenges and passing accounts.

Douglas's practice also takes in Indigenous Trusts. That work means drafting and advising on trusts tied to impact benefit agreements, collaboration agreements and land settlement claims, and Douglas serves as general counsel for the Nunavut Trust. Gowling WLG has long been one of the Trust's legal advisors.

Called to the Ontario bar in 1990, Douglas has also taught others in the field. Douglas once taught the Estate Practice section of the Law Society of Ontario's Bar Admission Course, has lectured on trust law at the University of Ottawa's Faculty of Law and on estate administration to law clerks there, and has chaired and presented at a range of continuing legal education programs. Douglas has discussed estate planning on radio and television, too.

Douglas is a past president of the Ottawa Estate Planning Council, sits on the planning committee for the County of Carleton Law Association's East Region Solicitors Conference, and has been recognized by Best Lawyers in Trusts and Estates since 2018. Readers of the All About Estates blog will find Douglas writing on practical problems, such as an Ontario client who owns a Quebec cottage, mutual wills and whether executors can reasonably expect compensation.

Practice areas

Wills, powers of attorney and trusts

Douglas prepares wills and powers of attorney and sets up testamentary, family and insurance trusts. Planning work also takes in Henson Trusts and ODSP planning, along with questions of incapacity and guardianship.

Tax and succession planning

Tax planning sits alongside succession work for clients passing on a business or a family cottage, and Douglas also handles trust variations and advises trustees on their obligations.

Estate disputes and administration

When an estate is contested, Douglas acts on will challenges and dependants relief claims and offers estate mediation. On the administration side, the work includes probate, intestate estates, passing accounts, estate transmissions and court appointments.

Indigenous Trusts

Douglas drafts and advises on Indigenous Trusts arising from land settlement claims, impact benefit agreements or collaboration agreements.

Education & credentials

  • BA, University of Toronto (1985)
  • LLB, University of Ottawa (1988)
  • Called to the bar of Ontario (1990)

Publications & speaking

Memberships & affiliations

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This listing was generated by AI from public sources in October 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on their firm’s website. Confirm Douglas D. Buchmayer’s licence and standing in the Law Society of Ontario directory ↗

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