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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Wills & Estate Planning Ontario » Probate & Trust Administration Ontario » Affidavit of Execution for a Blind or Illiterate Testator in Ontario

Affidavit of Execution for a Blind or Illiterate Testator in Ontario

3 Jul 2026 4 min read No comments Probate & Trust Administration Ontario
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In Ontario, probating a Will for a blind or illiterate person requires a specialized reading-over clause within the standard Affidavit of Execution (Form 74D). The witnesses must explicitly swear to the court that the Will was read aloud to the testator and that the testator fully understood and approved its contents before signing.

Protecting Vulnerable Testators in Ontario

Creating a Last Will and Testament is a fundamental right, but ensuring its legal validity becomes complex when the testator cannot physically read the document. Whether a person has severe visual impairment, is entirely blind, or is illiterate, Ontario law demands extra precautions to prevent fraud, misunderstanding, or undue influence.

Under normal circumstances, the Superior Court of Justice requires an Affidavit of Execution using the standard Form 74D where a witness swears they saw the person sign the Will. 📝 However, if the testator could not read the document, the court will reject a basic affidavit that lacks proof of reading over. The judge must be absolutely certain that the person actually knew what they were signing and who they were leaving their money to.

To solve this, Ontario estate law utilizes a “reading over” clause under Form 74D (Affidavit of Execution of Will or Codicil). This specialized clause requires the witnesses to swear that the Will was read aloud to the testator in their presence. Whether you are probating an estate in Toronto, Ottawa, or Thunder Bay, this critical step proves the testator had full knowledge and approval of their estate plan.

Step-by-Step Process in Ontario

Step 1: Identifying the Specialized Need

As the executor, you must review the original Will and the accompanying Affidavit of Execution. If you know the deceased was blind or illiterate, check if the drafting lawyer included the specific “reading over” clause (Paragraph 3 of Form 74D) in the witness affidavit. If a standard affidavit without this clause was used by mistake, you have a procedural hurdle to fix.

Step 2: Tracking Down the Original Witnesses

If the Will lacks the reading-over clause, your estate lawyer must track down at least one of the original witnesses. 👥 The witness will need to swear a new Affidavit of Execution on Form 74D, specifically completing the section confirming that they were present when the Will was read aloud to the deceased, and that the deceased appeared to fully understand it.

Step 3: Preparing the Affidavit

An Ontario lawyer will prepare the standard Form 74D Affidavit of Execution under the Rules of Civil Procedure. Under Paragraph 3 of Form 74D, the document will explicitly state that due to the testator’s blindness or illiteracy, the Will was read over in the witness’s presence, and the testator appeared to fully understand its contents before signing or making their mark.

Step 4: Filing with the Superior Court

The Form 74D affidavit with the completed reading-over section is packaged with the original Will, the probate application forms, and the death certificate. 📦 Once filed at the local Superior Court of Justice, the registrar will review the “reading over” clause to ensure it satisfies the strict requirements of the Succession Law Reform Act.

How Much Does it Cost in Ontario?

Dealing with completed reading-over clauses and tracking down witnesses can increase your legal expenses during probate. Here are the expected costs in Ontario:

  • Lawyer Preparing Fees: If a new Affidavit of Execution is required, an estate lawyer may charge an additional $300 to $800 CAD for preparing the Form 74D and coordinating the witness swearing process.
  • Standard Probate Legal Fees: Preparing and filing the complete application for a Certificate of Appointment generally costs $2,500 to $4,500 CAD.
  • Estate Administration Tax (EAT): The provincial tax remains standard, calculated at 1.5% for every dollar of the estate’s value over $50,000 CAD.
Testator ConditionAffidavit RequiredKey Requirement
Sighted & LiterateForm 74DWitnesses saw testator sign
Blind or Visually ImpairedForm 74D (with Paragraph 3 completed)Will read aloud & understood
IlliterateForm 74D (with Paragraph 3 completed)Contents explained & understood

How Long Does the Process Take?

If the original Will already has the correct specialized affidavit attached, the timeline is the standard 3 to 6 months to receive probate from the Superior Court. However, if your lawyer needs to hire a private investigator to find old witnesses to swear a new affidavit, expect delays of several weeks to several months before you can even file the application.

Frequently Asked Questions (FAQ)

What happens if the witnesses cannot be found?

If both witnesses are dead or untraceable, your lawyer must apply to a judge with alternative evidence. This could include medical records or testimony from the drafting lawyer to prove the testator knew the contents of the Will.

Can someone else sign the Will on behalf of a blind testator?

Yes. Under the Succession Law Reform Act, a testator can direct another person to sign the Will on their behalf, provided it is done in the testator’s physical presence and by their explicit direction.

Can the blind testator just use a thumbprint instead of a signature?

Yes. A testator who cannot write can make a “mark” (such as an X or a thumbprint) as their signature, as long as the witnesses verify it through the specialized Affidavit of Execution.

Will the court automatically reject the Will if the clause is missing?

The court registrar will issue a deficiency notice and pause your probate application. You will be forced to supply a proper Form 74D with the completed reading-over clause before the court grants you the Certificate of Appointment.

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