How do I contest a will in Quebec?

Incapacity of the testator

The Civil Code is explicit about which moment counts: the testator's capacity is assessed as at the time of the will (article 707). Incapacity at the precise moment of drafting is therefore a recognised ground — but it is that moment which counts, not the person's general condition in the months that followed.

A diagnosis of cognitive decline is not enough on its own. These conditions fluctuate, and a person may have periods of lucidity. What weighs is what the medical notes show on the date of the will, assessments carried out at the time, and the testimony of those who were present.

A notarial will makes the exercise harder: the notary has a duty to verify capacity, and that assessment carries real weight which must be displaced.

Captation and undue influence

This ground addresses the situation where the will expressed is no longer the testator's but that of someone who steered it. Being kind or present is not the issue: there must be a hold that diverted the testator's will.

Certain features recur: progressive isolation of the testator, a late change of will in favour of someone recently arrived, physical or financial dependence, a beneficiary who arranged the notary appointment themselves.

None of these is sufficient alone. It is their accumulation, set within a chronology, that builds the case or fails to.

Defect of form

The Civil Code recognises three forms of will, and only three: notarial, holograph, and made in the presence of witnesses (article 712). Each has its own requirements, and failing them can result in nullity.

A holograph will must be written entirely by the testator and signed by them, otherwise than by a technical means; it is subject to no other formality (article 726). A typed document, even signed, is therefore not a valid holograph will.

Holograph wills and wills made before witnesses must also be probated by the court or a notary before taking effect (article 772). That step is sometimes when the difficulties surface.

A defect of form is not always enough

This is the qualification anyone contesting on a technicality needs to know before committing to it.

A holograph will or a will made before witnesses that does not fully meet the conditions of its form is nonetheless valid if it meets them in substance and if it unquestionably and unequivocally contains the last wishes of the deceased (article 714).

A misplaced signature, a witness whose standing is disputed, a missing date: none of those is enough on its own where the deceased's intention emerges clearly from the document. A challenge resting on form alone runs into this provision, and often does.

The burden of proof

This is what most people underestimate. The person contesting must prove it, and a sense of injustice — however legitimate — is not evidence.

What counts: the testator's medical records, the notary's notes, testimony from family and professionals, bank statements showing unusual movements, the exact chronology of successive versions of the will.

A strong file is judged on those. That is also why an honest assessment at the outset is worth more than proceedings launched on an impression.

Why time works against you

While you consider your options, liquidation continues. Assets are sold, sums distributed, a property changes hands. Recovering what has already been shared out is far harder than preventing distribution.

If you are seriously considering a challenge, the first useful step is often to notify the liquidator in writing, which puts them on notice of the dispute and may justify suspending certain operations.

Contesting is not the only option

Many files are not really about the validity of the will but about how it is being carried out: a liquidator who does not act, accounts that are never rendered, a partition stalled for months.

Those situations call for different remedies, often faster and cheaper than a contest. It is worth naming the problem precisely before choosing the procedure.