A will dispute is one of the most legally complex and emotionally charged proceedings in Alberta’s court system. For beneficiaries, family members, or other interested parties who believe that a will does not accurately reflect the deceased’s true intentions, the decision to challenge that will involves significant legal, financial, and relational consequences. For executors and beneficiaries who need to defend a will against challenge, the stakes are equally high.
In Alberta’s wealthiest communities, where estates regularly include multi-million dollar real estate, closely held corporate interests, significant investment portfolios, and intergenerational wealth structures, the financial stakes of a will dispute can be extraordinary. The difference between a successful and unsuccessful challenge can determine whether a beneficiary receives their intended inheritance or receives nothing, and can affect the distribution of millions of dollars of estate assets.
This article explains the legal grounds for challenging a will in Alberta, the evidentiary requirements for each ground of challenge, the process for will dispute proceedings before the Court of King’s Bench, and why early legal involvement is critical to the success of any will dispute matter.
The Legal Framework for Will Disputes in Alberta
Will disputes in Alberta are governed by the Wills and Succession Act, SA 2010, c W-12.2, and proceed before the Court of King’s Bench under the Surrogate Rules. The Act establishes the formal requirements for a valid will, the grounds on which a will can be challenged, and the curative provisions that allow courts to validate documents that do not strictly meet the formal requirements but that demonstrate the testamentary intentions of the deceased.
A will challenge is initiated by a person with a legitimate interest in the estate, typically a potential beneficiary who would receive a greater share if the challenged will were invalidated, or who would benefit from an earlier will that the challenged will purports to revoke. The challenging party bears the evidentiary burden of establishing the ground of challenge on a balance of probabilities.
Will dispute proceedings are estate litigation matters that can be lengthy, expensive, and emotionally taxing. The evidentiary record typically includes the will itself, medical records and clinical notes from the testator’s final years, correspondence and financial records, witness statements from family members and others who knew the testator, and in some cases expert evidence from physicians or psychologists on the question of mental capacity. Building this evidentiary record takes time, and delay in engaging legal counsel can result in critical evidence becoming unavailable.
Lack of Testamentary Capacity: The Most Common Ground of Challenge
Lack of testamentary capacity is the most frequently advanced ground for challenging a will in Alberta. The legal test for testamentary capacity in Canada was established in the landmark case of Banks v Goodfellow and requires that the testator understood the nature of making a will and its effect, knew the extent of the property they were disposing of, knew who had a natural claim to benefit from their estate, and was able to appreciate the effect of distributing their estate without the influence of any disorder of the mind.
Diminished capacity arising from dementia, cognitive decline, serious illness, the effects of medication, or other conditions affecting mental function can satisfy the legal test for incapacity if the diminishment affected the testator’s ability to meet the requirements of the Banks v Goodfellow test at the time the will was executed. It is important to note that the capacity assessment is specific to the moment of execution, not to the testator’s general mental condition during the final years of their life.
The evidentiary challenge in capacity cases is that capacity fluctuates, particularly in the context of progressive conditions such as Alzheimer’s disease, and that the testator may have had capacity on some days and not on others. Medical records from the period around the execution of the will are the most important evidence in a capacity dispute, and they must be carefully analyzed by counsel experienced in this area of litigation.
There is a presumption in Alberta that a testator had capacity when they executed a properly witnessed will. The challenger bears the burden of presenting evidence sufficient to rebut that presumption, after which the burden shifts to the party seeking to uphold the will to establish that capacity existed at the time of execution.
Undue Influence: Protecting the Testator’s True Intentions
Undue influence in the testamentary context occurs when a person in a position of trust or authority over the testator exerts pressure that overcomes the testator’s free will and causes them to make a will that does not reflect their genuine intentions. Undue influence is distinguished from ordinary influence, which family members and close associates naturally exert on each other, by the element of coercion that overpowers rather than merely persuades.
Proving undue influence in Alberta is significantly more difficult than proving incapacity, because undue influence typically occurs in private and leaves little direct evidence. Courts approach undue influence claims by considering the circumstances surrounding the execution of the will, the relationship between the testator and the person alleged to have exerted influence, the testator’s vulnerability to such influence at the relevant time, and whether the terms of the will are consistent with what the testator had previously expressed as their intentions.
Undue influence claims are most commonly advanced in situations involving elderly testators who were physically or financially dependent on a family member or caregiver who is the primary beneficiary of the challenged will. The sudden exclusion of previously favored beneficiaries, the concentration of the entire estate in one person who had close control over the testator’s daily affairs, and the preparation of the will by a solicitor with a close connection to the beneficiary are all circumstantial factors that can support an undue influence claim.
Fraud and Forgery in Will Disputes
Fraud in the testamentary context can take several forms. The most serious is outright forgery, where a person fabricates a will or forges the testator’s signature on a genuine document. Less dramatic but equally significant is fraudulent misrepresentation, where a person makes false statements to the testator about another person or about the testator’s circumstances that cause the testator to change their testamentary intentions in ways they would not have done with accurate information.
Forgery allegations require forensic document examination evidence, typically from a qualified handwriting expert, to establish that the signature on the will is not the testator’s genuine signature. Modern forensic techniques can be highly effective at detecting forgeries, and courts treat forgery as among the most serious grounds for invalidating a will.
Fraudulent misrepresentation claims require evidence both of the false statement and of its effect on the testator’s testamentary decisions. Establishing that a beneficiary made false statements to the testator about a family member who was subsequently excluded from the will requires evidence of the statements, evidence that they were false, and evidence that the testator acted on those statements in making the challenged will.
Formal Execution Deficiencies
A will that does not meet the formal execution requirements of the Wills and Succession Act is prima facie invalid. The formal requirements include signature by the testator at the end of the document and attestation by two witnesses who were both present at the same time and who both signed in the testator’s presence. A will that is missing a witness signature, where the witnesses did not sign in the testator’s presence, or where the testator’s signature appears in the wrong location may be formally deficient.
The Wills and Succession Act gives the Court of King’s Bench discretion to validate a formally deficient will if the court is satisfied that the document represents the testamentary intentions of the deceased. This curative provision has been applied in a range of circumstances involving minor technical deficiencies, but it is not available for fundamental deficiencies that go to the authenticity of the document.
The Evidentiary Foundation of a Will Challenge
The single most important factor in the success or failure of a will challenge in Alberta is the quality and comprehensiveness of the evidentiary foundation on which the challenge is based. Evidence that is not gathered promptly may become unavailable. Witnesses whose recollections are important become harder to locate or their memories less reliable over time. Medical records that were contemporaneous with the events in question may be destroyed in accordance with retention schedules. Electronic communications that are relevant to the circumstances of the will’s preparation may be deleted.
The practical lesson is that anyone who believes a will may be susceptible to challenge should engage legal counsel as early as possible, before the evidentiary foundation begins to erode. An experienced estate litigation lawyer can identify what evidence exists, take steps to preserve it, assess the strength of the potential challenge, and advise on whether and how to proceed.
Frequently Asked Questions About Will Disputes in Alberta
Any person with a legitimate interest in the estate can challenge a will in Alberta. This typically includes beneficiaries named in an earlier will that the challenged will purports to revoke, family members who would have a claim under the intestacy rules if no valid will existed, and, in some cases, creditors of the estate.
Will dispute proceedings in Alberta typically take between one and three years from initiation to final resolution, depending on the complexity of the issues, the amount of evidence involved, the cooperation of the parties, and the court’s scheduling. Cases involving significant estates, contested expert evidence, or multiple grounds of challenge take longer.
During a will dispute, the estate is typically held by the executor pending the outcome of the proceedings. The court can make orders for interim distributions or for the administration of specific assets where delay would cause harm, but the final distribution of the estate is deferred until the dispute is resolved.
Yes. Many will disputes in Alberta are resolved by negotiated settlement before or during the litigation process. A settlement can take the form of a revised distribution of the estate that all parties accept, a payment to the challenging party in exchange for withdrawing the challenge, or a mediated agreement that addresses the underlying family conflict as well as the legal dispute.


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