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№ 22 Wills & Estates

Tracing Missing Heirs for an Ontario Estate: Who Does It and How

Can't find a relative entitled to inherit? Learn why it matters, who does the searching, what steps help, and when court involvement may be needed in Ontario.

Wills & Estates5 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • Everyone entitled to a share must receive a signed copy of the application before it is filed, so a missing person is a real obstacle.
  • Without a will, the estate generally goes to the spouse and closest next-of-kin, and a common-law spouse does not inherit under the Act.
  • Minor or incapable beneficiaries may require service on the Office of the Children's Lawyer or the Public Guardian and Trustee.
  • The Estate Information Return is still due within 180 calendar days of the certificate while you search.

As estate trustee, you may discover that someone entitled to inherit cannot be found. Perhaps a sibling lost touch decades ago, or a beneficiary named in a will has moved without leaving an address. You cannot simply skip that person, and you may worry about delaying everyone else.

This article explains why the missing person matters, who typically does the searching, sensible steps to take, and where the court may come in. Details depend heavily on the facts, so use this as orientation before getting legal advice.

Why a missing heir holds things up

Before you file an application for a certificate, a signed copy must be sent to all estate beneficiaries, by email or by mail or courier to their last known address. For a small estate certificate, the signed application must reach everyone entitled to a share at least 30 days before filing.

So the question is not just where the person is. It is also who counts as a person entitled, and that depends on whether there is a will and what it says.

Who is entitled when there is no will

Under the Succession Law Reform Act, an estate without a will generally goes to the spouse and closest next-of-kin, and a common-law spouse does not inherit under the Act. For applying, the spouse or common-law partner has first right to apply, followed by a close adult relative such as a child, parent, grandchild, sibling, or nephew or niece.

If you are applying with no will, a bond is generally required, and it is generally double the estate's value unless a judge orders otherwise. How the shares divide among relatives is fact-specific, so ask a lawyer to map out your family tree against the rules.

Who does the tracing

Who carries out the search can depend on the estate and the people involved, so it is worth confirming with a lawyer. Many trustees start themselves and bring in a lawyer when the trail goes cold. Some also hire a private tracing firm. Whether to do so, and on what terms, depends on the size of the estate and the difficulty of the search.

OptionTypical usePoints to weigh
You, as trusteeFirst step: relatives, friends, old recordsLow cost; requires time and organization
Your lawyerSearches that stall, or court stepsCan advise on notice and court options
A tracing firmHard-to-find people, often abroadAgree the scope and cost in writing before work begins

Practical search steps

A written record matters. If you later need to explain your efforts to a court or a beneficiary, a clear log makes your position much stronger.

Minors, incapable people and the court

If a beneficiary is under 18, the Office of the Children's Lawyer must be served when applying. For minor or incapable beneficiaries, the Office of the Children's Lawyer and the Public Guardian and Trustee may need to be served.

If documents are missing, court staff may ask for revised or additional materials. Matters that need a decision are reviewed by a judge, who may make an order. If someone files an objection, you must give notice to the objector and file a copy with an affidavit of service. When a search for a beneficiary has been exhausted, a lawyer can explain what court directions may be available in your circumstances.

Be careful about distributing around a missing person. Before distributing, a representative should get a CRA clearance certificate, and one who does not may be liable for unpaid tax up to the value distributed. Separately, the Estate Information Return is still due within 180 calendar days of the certificate, so a search should not make you miss it.

What to do next

Frequently asked questions

Do I have to tell every beneficiary before applying?

Yes. A signed copy of the application must be sent to all estate beneficiaries before filing, by email or by mail or courier to their last known address. For a small estate certificate it must be sent at least 30 days before filing.

Does a common-law partner inherit if there is no will?

Under the Succession Law Reform Act, a common-law spouse does not inherit as such. A common-law partner does have first right to apply for the certificate, though, which is a different question. A lawyer can explain other possible claims.

Do I need to hire a tracing firm?

Not necessarily. Many searches succeed through relatives, records and the deceased's papers. A firm may help with hard cases, and the cost and terms vary, so confirm them in writing and consider asking a lawyer to review.

What if an heir is a child?

The Office of the Children's Lawyer must be served when applying if any beneficiary is under 18. Your lawyer can handle that service.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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