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Filing a Notice of Objection to a Will in Ontario

A Notice of Objection can pause an Ontario probate application while a will dispute is worked out. Here is how the process generally works in practice.

Wills & Estates5 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
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Key takeaways
  • Filing a Notice of Objection tells the court that someone disputes the will, or disputes who should be appointed as estate trustee.
  • A Notice of Objection is generally appropriate when: - You have a genuine, specific concern about the will’s validity, not simply disappointment with the distribution - Probate has not…
  • You will need to know which Superior Court of Justice office is, or will be, handling the estate.

If you have serious concerns about a will and probate has not been granted yet, you may not need to wait for a certificate to be issued before doing something about it. Filing a Notice of Objection to a will in Ontario can pause the probate process while the underlying dispute gets sorted out. It is one of the more practical tools available early in a will dispute, but it comes with real responsibilities once it is filed.

What a Notice of Objection Actually Does

Filing a Notice of Objection tells the court that someone disputes the will, or disputes who should be appointed as estate trustee. This procedure operates under Rule 75 of Ontario’s Rules of Civil Procedure, which governs will challenges and objections to probate applications. Once the objection is on file, the court registry generally will not issue a Certificate of Appointment of Estate Trustee while it remains outstanding, effectively freezing the formal probate process without requiring you to have already filed a full court application.

This is different from starting a full will challenge. Filing the objection itself does not require you to prove your case up front — it simply puts the court registry on notice that an appointment should not go ahead until the underlying dispute has been addressed, either through negotiation or a formal application.

When It Makes Sense to File One

A Notice of Objection is generally appropriate when:

It is not meant to be used as a delay tactic without a genuine basis, and courts can take a dim view of objections filed without real grounds.

The General Process

  1. Confirm the estate and court location. You will need to know which Superior Court of Justice office is, or will be, handling the estate.
  2. Prepare and file the Notice of Objection. This is done with the court, identifying who is objecting and the general nature of the concern.
  3. The registry notes the objection. Once filed, the court will not issue a certificate of appointment while it remains outstanding.
  4. Follow through with next steps. An objection alone does not resolve anything; it buys time. You will generally need to either negotiate a resolution or move toward a formal court application if the dispute cannot be settled.

What Happens After You File

An objection is not permanent or automatically enforced forever. It can end in a few ways:

Practical Realities to Keep in Mind

Frequently asked questions

Do I need a lawyer to file a Notice of Objection?

It is not a strict legal requirement, but given the procedural details involved and the risk of a groundless objection being challenged, most people are better served getting legal advice before filing.

Does filing an objection mean I am formally contesting the will?

Not yet. It pauses the process and signals a dispute, but a full will challenge is a separate, more involved court application. Many objections lead into a formal challenge; some resolve before that becomes necessary.

Can the executor still act while my objection is outstanding?

An objection specifically targets the issuance of the Certificate of Appointment. Depending on the situation, some estate matters may still need attention, so this is worth discussing with a lawyer promptly after filing.

What if I file an objection but never follow up?

Objections are not meant to sit indefinitely. If you do not take further steps, the person seeking probate can generally apply to have it removed, and it may lapse under the court’s own rules regardless.

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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