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Wills & Estates

What Happens If Someone Challenges a Will During the Probate Process in Ontario?

TSL Written by the Treadstone Law Team· Updated November 6, 2026

If someone challenges a will, the probate application may not move through as a routine file, and how long it takes depends on the dispute. Ordinary applications are typically processed within 15 business days, but the registrar must refer an application that raises issues to a judge.

How long a dispute takes depends on the issues, the evidence and the court's schedule, so no fixed timeline applies. Until it is resolved, the person meant to act may have no certificate, and the estate normally has to be probated if the deceased owned real property or assets held by a financial institution. The Land Titles Act also generally requires a certificate of appointment before an estate trustee deals with land. Whether the estate trustee can take any steps in the meantime depends on the facts and the court's orders.

If you have a financial interest, you may file a request for notice (Form 74P) at any time before a certificate is issued, and it expires three years after filing unless renewed. Any person with a financial interest may also apply or move for directions. A lawyer can tell you which steps fit your situation, including how a challenge is started and answered.

Key takeaways

  • An application that raises issues must be referred by the registrar to a judge, rather than processed as a routine file.
  • Ordinary applications are typically processed within 15 business days, while an application that raises issues is referred to a judge.
  • A person with a financial interest may file a request for notice (Form 74P) before a certificate is issued, and it expires three years after filing unless renewed.
  • Any person with a financial interest may apply for directions on estate questions, so a lawyer can help you choose the right step.
This is general information, not legal advice. It doesn’t create a lawyer–client relationship, and the rules can change. For advice on your situation, a Treadstone wills & estates lawyer can help.

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Sources

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

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