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№ 22 Wills & Estates

Suspicious Circumstances in a BC Will Challenge Explained

Understand what suspicious circumstances mean in a British Columbia will challenge, how they affect the burden of proof, and how a will's defender responds.

Wills & Estates4 min readTSLBy the Treadstone Law Team · British ColumbiaUpdated November 1, 2026
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Key takeaways
  • Where suspicious circumstances relate to mental capacity, the person propounding the will reassumes the legal burden of proving capacity.
  • Suspicious circumstances do not raise the standard of proof; it remains the balance of probabilities.
  • They only rebut the presumption of capacity and of knowledge and approval, and do not by themselves prove undue influence or fraud.

Suspicious circumstances is a phrase that comes up often in will disputes. It describes facts surrounding the making of a will that raise doubts about whether the will-maker truly understood and approved what it said.

This article explains how that idea works in British Columbia, how it shifts the burden, and how someone defending the will can respond. It is general information only.

This article covers the law of British Columbia.

What suspicious circumstances do

Vout v. Hay, [1995] 2 SCR 876, is the leading Canadian authority on suspicious circumstances in will disputes. What counts as suspicious depends on the facts of each case. Examples might include a beneficiary being closely involved in the signing, which is why rules about witnesses and gifts matter.

Where suspicious circumstances relate to mental capacity, the propounder of the will, meaning the person putting it forward, reassumes the legal burden of establishing testamentary capacity. Suspicious circumstances do not raise the standard of proof. The evidence is scrutinized in accordance with the gravity of the suspicion, and the standard remains the balance of probabilities.

What they do not do

Suspicious circumstances, even though they may raise a suspicion of fraud or undue influence, do no more than rebut the presumption of capacity and of knowledge and approval. A person alleging undue influence or fraud generally still has to prove it, except where WESA s. 52 shifts the onus.

Section 52 applies when you claim a will resulted from undue influence. You must first show that the other person was in a position of potential dependence or domination over the will-maker and that this position was used to influence the will. Only then does the party defending the will have the onus of proving that no undue influence was exercised. Without that showing, the person alleging undue influence bears the burden of proving it.

ConcernEffect of suspicious circumstancesWho carries the burden
CapacityPropounder reassumes the burdenPerson defending the will
Knowledge and approvalPresumption is rebuttedSee the case law; confirm with a lawyer
Undue influence or fraudNo automatic proofChallenger, unless s. 52 applies

How the defender answers

A person defending a will answers by putting forward evidence on the issues raised. For capacity, that means evidence that the will-maker was mentally capable, which the Act requires under s. 36. Evidence about the signing can matter, since the will must be in writing, signed in front of two or more witnesses, and signed by them in the will-maker's presence.

A rectification application must generally be made within 180 days of the date of the representation grant. That is separate from a challenge to validity.

How the challenge is brought

A person who receives notice of a probate application may oppose a grant by filing a notice of dispute (Form P29) under Rule 25-10. A formal challenge to validity is made by applying for an order proving the will in solemn form under Rule 25-15. Interested persons can include beneficiaries, intestate successors and people who may bring a wills variation claim.

If you are concerned about the executor, a person with an interest in the estate may apply to remove or pass over a personal representative. Any person interested in the estate may also require the named executor to accept or renounce probate, or explain why administration should not be granted.

What to do next

A wills variation claim, which is a different claim from a validity challenge, must be commenced within 180 days from the date the representation grant is issued in British Columbia. A notice of dispute prevents a grant from being issued before the person can apply for an order requiring security. Which deadline applies to a validity challenge depends on the type of proceeding and the facts, so it is worth confirming with a lawyer early.

Frequently asked questions

What is a propounder?

It is the person putting the will forward. Where suspicious circumstances relate to mental capacity, the propounder reassumes the legal burden of establishing testamentary capacity.

Do suspicious circumstances mean the will is invalid?

Not by themselves. They rebut the presumption of capacity and of knowledge and approval, but do not by themselves prove fraud or undue influence. Where they relate to mental capacity, the person putting the will forward reassumes the burden of establishing capacity. The standard of proof remains the balance of probabilities.

How does section 52 fit in?

A challenger must first show that the other person was in a position of potential dependence or domination and that this position was used to influence the will. Only then must the defender prove no undue influence was exercised. Without that showing, the challenger bears the burden.

Can a drafting mistake be fixed?

The court may rectify a will for an accidental slip or omission, a misunderstanding of instructions, or a failure to carry out instructions. The application must generally be made within 180 days of the date of the grant.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. British Columbia 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 lawyer who practises in British Columbia. Reach us at 1-844-900-1070 or send our Team a message.

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