Over 20 Years of Experience in Family Law and Notary Services

Estate and Will Disputes in Ontario

When someone dies, and the distribution of their estate is not what it should be, the law provides a path to challenge it. The Law Office of Natalia Denchik helps clients across Ontario understand their rights in estate and will disputes, whether that means contesting a will that does not reflect the true wishes of the deceased, resolving an inheritance dispute between beneficiaries, or pursuing a claim that was wrongly excluded from an estate.

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Contest a Will in Ontario

Contesting a will in Ontario means formally challenging whether a will is legally valid. Courts do not set aside a will lightly, but there are established legal grounds on which a challenge can succeed, and they arise more often than people expect.

The most common basis for contesting a will is lack of testamentary capacity, meaning the person who made the will did not have the mental capacity required by law at the time it was signed. A valid will requires that the person understand what a will is, know the nature and extent of their property, recognize who their natural heirs are, and be able to weigh those factors without external pressure distorting their judgment. Where cognitive decline, dementia, or acute illness was present at the time of signing, capacity may be in question.

A will can also be challenged based on undue influence, where another person, often a caregiver, family member, or beneficiary, exerted pressure that overrode the testator’s free will. Proving undue influence requires evidence of the relationship and the circumstances surrounding the will’s creation. Suspicious circumstances, such as a sudden change in instructions shortly before death or the exclusion of close family members without apparent reason, can support this type of challenge.

Grounds for contesting a will in Ontario include:

  • Lack of testamentary capacity at the time of signing
  • Undue influence by a beneficiary, caregiver, or advisor
  • Fraud or forgery
  • Failure to comply with the formal execution requirements under Ontario’s Succession Law Reform Act
  • A later valid will that revokes the one being relied upon

Time matters in will challenges. Estate administration can move quickly once probate is granted, and assets can be distributed before a challenge is brought. If you believe a will is invalid, getting legal advice promptly protects your ability to act.

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Estate Dispute Lawyer

Not every estate dispute involves contesting the will itself. Many disputes arise between beneficiaries, or between beneficiaries and the estate trustee, over how the estate is being administered. These matters can be just as financially significant and just as legally complex as a formal will challenge.

An estate dispute lawyer helps clients navigate the full range of conflicts that arise after a death, including disputes over the valuation and distribution of specific assets, disagreements about the sale of estate property, claims that an estate trustee is acting improperly or failing to administer the estate in accordance with its terms, and challenges to the conduct of an executor who has a conflict of interest.

Ontario law gives the court significant authority over estate administration. Where an estate trustee has mismanaged assets, delayed distribution without justification, favoured certain beneficiaries, or failed to account properly for estate funds, the court can compel accounting, remove the trustee, or order compensation for losses caused by the trustee’s conduct.

An estate dispute lawyer can assist with:

  • Beneficiary disputes over the interpretation of will provisions
  • Applications to pass accounts and review an estate trustee’s conduct
  • Removal or replacement of an executor acting against the estate’s interests
  • Claims for compensation where an estate trustee has caused financial loss
  • Disputes involving jointly held assets, named beneficiaries on insurance policies, and property held outside the estate

Natalia Denchik works with both beneficiaries and estate trustees, advising each on their legal rights and obligations and helping resolve disputes through negotiation where possible, and through court proceedings where necessary.

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Inheritance Dispute Help

An inheritance dispute arises when someone believes they have been unfairly treated in the distribution of an estate. This may be a family member who was excluded from a will without explanation, a dependent who was not provided adequate support, or a spouse whose entitlement under Ontario law was not honoured in the will’s terms.

Ontario’s Succession Law Reform Act gives dependants of a deceased person the right to apply to the court for support from the estate where the will fails to make adequate provision for them. A dependant includes a spouse, parent, child, or sibling who was financially dependent on the deceased at the time of death. This type of claim does not require proving the will is invalid. It is a separate statutory right to seek fair provision from an estate regardless of what the will says.

Spouses of a deceased person also have the right to elect between taking what the will provides and taking their equalization entitlement under family property law. Where a spouse was left less under the will than they would receive under an equalization claim, this election can result in a significantly larger share of the estate. The election must be made within six months of the grant of probate, making early legal advice essential.

Inheritance dispute help is available for:

  • Dependant’s relief applications under Ontario’s Succession Law Reform Act
  • A spouse’s election between the will and equalization entitlement
  • Claims by children or other family members excluded from an estate
  • Disputes over gifts made shortly before death that may have been made under undue influence
  • Disagreements between beneficiaries about the value or distribution of specific assets

Inheritance disputes are often made more difficult by grief, family dynamics, and the urgency that comes with estate administration timelines. Natalia Denchik provides direct, practical guidance from the outset so you understand what you are entitled to, what can realistically be pursued, and how to move forward.

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Frequently Asked Questions

How long do I have to contest a will in Ontario?

Ontario does not set a single fixed deadline for will challenges, but timing is critical. Once probate is granted and the estate is distributed, reversing distributions becomes significantly more difficult. If you believe a will may be invalid, legal advice should be sought as early as possible, ideally before probate is granted or shortly after. Certain claims, such as a dependant’s relief application, have a specific six-month limitation period from the date of the certificate of appointment.

Do I need to go to court to resolve an estate dispute?

Not necessarily. Many estate disputes are resolved through negotiation or mediation without a court hearing. Litigation is available where the parties cannot reach agreement, but it is often in everyone’s interest to explore settlement first. Natalia Denchik advises on whether a negotiated resolution is realistic given the facts of your situation and represents clients through whichever process is most likely to achieve the right outcome.

What is a dependant’s relief claim, and who can bring one?

A dependant’s relief claim is an application under Ontario’s Succession Law Reform Act asking the court to order the estate to provide adequate support for someone who was financially dependent on the deceased. It is available to spouses, children, parents, and siblings who qualified as dependents at the time of death. The claim does not require proving the will is invalid. It asks the court to exercise its discretion to ensure the estate provides what the deceased was morally and legally obligated to provide.

Can a spouse override what a will says in Ontario?

Yes. In Ontario, a surviving spouse has the right to elect between accepting what the will provides and taking their equalization entitlement under the Family Law Act. This election is available within six months of probate being granted. Where the will leaves the spouse less than they would receive under an equalization claim, the election can result in a substantially larger inheritance. Missing the six-month window extinguishes this right, which is why early legal advice is so important.

What happens if the executor is not doing their job properly?

A beneficiary who believes an executor is mismanaging the estate, delaying distributions, failing to account for assets, or acting in their own interest rather than the estate’s can bring a court application to compel the executor to pass accounts, to remove the executor, or to seek compensation for losses caused by the executor’s conduct. Ontario courts take executor misconduct seriously, and there are established legal remedies available to beneficiaries who are not being treated properly.

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Natalia Denchik

13025 Yonge Street, Unit #201E,
Richmond Hill, ON
L4E 1A4

Fax: 416-900-5168

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