Challenging a Will for Lack of Capacity Ontario

Discovering that a loved one made a will when they lacked the mental capacity to understand what they were doing can be devastating, especially when it disinherits family members or makes distributions that seem completely out of character. If you believe a will is invalid because the person lacked testamentary capacity when they signed it, you can challenge the will in court.

You can challenge a will if the deceased lacked testamentary capacity at the specific moment they signed it. This means they didn’t understand:

• That they were making a will distributing property after death
• What assets they owned
• Who would normally expect to inherit from them
• How their decisions affected these relationships

Strong capacity challenges require multiple types of evidence working together.

• Medical records from around the time the will was signed
• Dementia, Alzheimer’s, or cognitive impairment diagnoses
• Hospital records if will made during medical crisis
• Medication lists showing drugs affecting cognition
• Doctor’s notes about mental state assessments

Expert witnesses: Geriatric specialists or psychiatrists who review medical records and testify about whether the person had capacity on the specific day the will was signed.

The will drafter’s observations are crucial:

• Notes about the person’s demeanor and comprehension
• Whether they communicated clearly
• Any concerns the lawyer documented about capacity
• Whether a capacity assessment was conducted
• How the person explained their wishes

Suspicious circumstances strengthen your case:

• The person couldn’t recognize family members but supposedly made complex estate decisions
• Will prepared in secret without usual advisors
• Changes made during crisis or immediately after hospitalization
• Rushed process without time for reflection
• Person signed documents they couldn’t read or understand
• Influencer present during will preparation

Pattern of consistent planning:

• Earlier wills showing longstanding intentions
• Statements to family and friends about estate plans
• Prior legal documents reflecting different mental capacity
• Dramatic unexplained departures from established wishes

The will is declared invalid. The estate is distributed according to:

• The most recent valid will made when the person had capacity, or
• Ontario’s intestacy laws if no earlier valid will exists

Cost consequences: The losing party (often the executor or main beneficiary under the challenged will) typically pays a portion of your legal costs.

Estate redistribution: Assets are divided according to the valid will or intestacy rules, which may significantly change who inherits and how much.

Believe a will was made without proper capacity? Our estates litigation lawyers assess capacity challenges, gather evidence, and represent families contesting wills. Contact us at 416.901.9984 or info@pintoshekib.ca.