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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Wills & Estate Planning Ontario » Probate & Trust Administration Ontario » Proving Due Execution of an Older Will with Deceased Witnesses in Ontario

Proving Due Execution of an Older Will with Deceased Witnesses in Ontario

15 Jun 2026 5 min read No comments Probate & Trust Administration Ontario
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If you are probating an older Will in Ontario and both original witnesses are deceased or untraceable, you cannot use a standard Affidavit of Execution. Instead, you must exhaustively search for the witnesses, document their passing, and file alternate affidavits verifying their signatures or the testator’s signature to satisfy the Superior Court of Justice.

When a person drafts a Will in Ontario, the law generally requires two independent witnesses to watch the testator sign the document, and then sign it themselves. Usually, one of these witnesses signs an Affidavit of Execution right then and there, which is securely tucked away with the Will. However, it is surprisingly common for older Wills-sometimes drafted decades ago-to surface without this crucial affidavit attached. If you are the appointed Estate Trustee, this presents a significant procedural hurdle.

If the Will was signed in Hamilton in 1985, and both witnesses have since passed away or vanished without a trace, the Superior Court of Justice will not automatically reject the document. 📍 Ontario law provides mechanisms to prove “due execution” even when the witnesses are gone. However, the court demands rigorous proof that you have made every reasonable effort to find them. Handling an older, unsworn Will requires a strategic approach. Engaging a knowledgeable law firm from our directory can guide you through the specific alternate affidavits needed to keep the probate process moving.

Step-by-Step Process in Ontario

When you cannot locate the witnesses, you cannot take shortcuts. The court expects you to play detective. You must demonstrate that the Will is genuine and that the signatures are not forged. Here is the process most Estate Trustees must follow in Ontario.

Step 1: Conduct an Exhaustive Search

Before the court will accept that the witnesses are unavailable, you must prove you tried to find them. You should search online obituaries, check social media, and look up old phone directories. If a specific law firm drafted the Will, contact them immediately. Even if the original lawyer is retired or deceased, their law practice might have been taken over by another firm that holds the historical files and records.

Step 2: Obtain Proof of Death (If Applicable)

If your search reveals that one or both of the witnesses have passed away, you must document this for the court. Obtaining a copy of their death certificate, an official funeral home record, or even a published obituary is often required to prove to the judge why an Affidavit of Execution cannot be obtained.

Step 3: Locate Signature Samples

If you cannot find the witnesses, you must prove that the signatures on the Will are authentic. You will need to locate someone who can identify the signature of at least one of the witnesses, or, more commonly, someone who can identify the deceased testator’s signature. Look for historical documents like old bank cheques, marriage certificates, or real estate contracts to serve as comparisons.

Step 4: Draft Alternate Affidavits

Your Ontario lawyer will draft a specialized affidavit to replace the missing Affidavit of Execution. This is often an Affidavit of Condition or an affidavit verifying the signature of the testator. The person swearing this affidavit must state their relationship to the deceased, how they are familiar with the signature, and explicitly confirm that the signature on the old Will is genuine.

Step 5: File with a Detailed Explanatory Letter

When you submit the probate application to the Superior Court of Justice, it must include a detailed affidavit from you (the Estate Trustee) outlining your exhaustive search efforts. You must explain exactly why the witnesses could not be found, supported by the alternate signature affidavits. The judge will review this narrative to determine if the Will can be admitted to probate.

How Much Does it Cost in Ontario?

Dealing with missing or deceased witnesses adds administrative overhead to the standard probate process. You should prepare for a few additional expenses.

  • Private Investigator Fees: If the estate is highly valuable and the court demands a more thorough search, hiring an investigator to track down old witnesses can cost between $500 and $1,500 CAD.
  • Document Retrieval: Ordering official death certificates for deceased witnesses from ServiceOntario usually costs around $15 to $22 CAD per document.
  • Lawyer Fees: Because drafting custom affidavits and explaining the absence of witnesses requires extra legal work, your law firm may charge an additional $1,000 to $2,500 CAD on top of standard probate fees.
  • Estate Administration Tax (EAT): The provincial probate tax remains unchanged, calculated on the total value of the estate assets.
Witness StatusRequired Documentation for ProbateComplexity Level
Alive and CooperativeStandard Affidavit of Execution (Form 74.8)Low (Routine process)
DeceasedProof of Death + Alternate Signature AffidavitModerate (Requires extra affidavits)
Untraceable / MissingAffidavit of Exhaustive Search + Signature ProofHigh (Strict court scrutiny)

How Long Does the Process Take?

Proving a Will without its original witnesses will inevitably delay your ability to administer the estate. Conducting the required exhaustive search and gathering historical signature samples usually takes 1 to 3 months. Once the specialized application is filed, court review times vary. By mid-2026, you can generally expect the Superior Court of Justice to take 4 to 8 months to issue the Certificate of Appointment, though non-standard applications sometimes face additional delays if the judge requests further clarification.

Frequently Asked Questions (FAQ)

Why didn’t the lawyer attach the affidavit when the Will was signed?

While it is standard practice today to swear the Affidavit of Execution immediately after signing, this was not always the case decades ago. Sometimes, the affidavit was separated from the Will over the years, or the lawyer simply planned to swear it when the person died.

What if the witnesses’ signatures are illegible?

If you cannot even read the names to begin searching, your lawyer will highlight this in your affidavit to the court. You will then rely heavily on proving the deceased testator’s signature rather than the witnesses’ signatures.

Do I have to search if I know they are dead?

If you know for a fact the witnesses have passed away, you do not need to pretend to search for them. However, you must provide the court with objective proof of their death, such as an obituary or a death certificate.

Will the court automatically reject the Will if I can’t find them?

No. The Ontario Superior Court of Justice is generally practical. As long as you provide a sworn affidavit proving the testator’s signature and demonstrate you made a genuine, honest effort to locate the witnesses, the judge will usually admit the Will.

Should I hire a law firm for this?

Absolutely. Missing witness applications are frequently rejected if the explanatory affidavits are poorly drafted. Browse our directory to find a skilled Ontario estate lawyer who knows exactly what the local judges expect to see.

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