How to win a will dispute case study upholding a will against mental capacity and undue influence claims in Jones v Jones

This case involves a dispute over a deceased person’s estate, where the applicant, Mr. Bruce John Jones, contested the validity of a will made by his late mother, Mrs. Evelyn Joyce Jones. Mr. Jones argued that his mother lacked the mental capacity to make the will and that his sister, Ms. Christine Anne Jones, unduly influenced her. The court had to consider evidence of Mrs. Jones’s health, her understanding of her assets and beneficiaries, and the circumstances surrounding the will’s creation. Ultimately, the court found that Mrs. Jones did have the necessary capacity and that there was no evidence of undue influence, dismissing Mr. Jones’s application.

Key details of the case

  • Case Name: Jones v Jones
  • Case Number: NSWSC 1201
  • Court: Supreme Court of New South Wales
  • Date of Judgment: October 10, 2025
  • Applicant: Mr. Bruce John Jones
  • Respondent: Ms. Christine Anne Jones
  • Deceased: Mrs. Evelyn Joyce Jones
  • Subject Matter: Validity of a will, testamentary capacity, undue influence.

Summary of the judgment

The case centred on a challenge brought by Bruce John Jones against a will made by his mother, Evelyn Joyce Jones, shortly before her death. Bruce claimed his mother didn’t have the mental capacity to understand what she was doing when she made the will and that his sister, Christine Anne Jones, had pressured her into making it. He wanted the court to declare the will invalid.

To decide this, the court looked at Mrs. Jones’s medical condition around the time she made the will. Evidence was presented about her physical and mental health, including any treatments she was receiving. The court also examined whether Mrs. Jones understood that she was making a will, who her beneficiaries were, and what assets she owned. This is known as testamentary capacity.

Furthermore, the court considered the relationship between Mrs. Jones and her daughter, Christine, and whether Christine had exerted improper pressure or influence over her mother’s decision-making. This is referred to as undue influence.

After reviewing all the evidence, the judge concluded that Mrs. Jones did have the mental capacity to make a valid will. The evidence didn’t show that she was confused or unable to understand her affairs. The court also found no credible evidence that Christine had unduly influenced her mother. Therefore, the application by Bruce John Jones to invalidate the will was dismissed. The will of Evelyn Joyce Jones was upheld as valid. You can read the full judgment here: Jones v Jones NSWSC 1201.

Q&A

  • Q: Is it illegal to contest a will in Australia?
  • A: No, it is not illegal to contest a will in Australia. Individuals can challenge a will if they believe there are valid grounds, such as lack of testamentary capacity or undue influence, as seen in Jones v Jones.
  • Q: What does testamentary capacity mean?
  • A: Testamentary capacity refers to a person’s mental ability to understand that they are making a will, the nature and extent of their property, and the claims of potential beneficiaries.
  • Q: What is undue influence in the context of a will?
  • A: Undue influence occurs when someone improperly pressures or coerces a person to make or change a will in a way that benefits the influencer, overriding the testator’s free will.
  • Q: Who can contest a will?
  • A: Typically, those who can contest a will include beneficiaries named in a previous will, beneficiaries named in the current will, or individuals who would have inherited under intestacy laws if there were no will.
  • Q: What kind of evidence is needed to prove lack of testamentary capacity?
  • A: Evidence can include medical records, testimony from doctors and caregivers, and statements from people who interacted with the deceased around the time the will was made, indicating confusion or a lack of understanding.
  • Q: What kind of evidence is needed to prove undue influence?
  • A: Evidence might involve showing a relationship of trust and confidence, suspicious circumstances surrounding the will’s creation, and proof that the influencer actively procured the will or exerted pressure.
  • Q: What happens if a will is found to be invalid?
  • A: If a will is declared invalid, the deceased’s estate will typically be distributed according to the terms of a previous valid will, or if there are none, according to the rules of intestacy.
  • Q: Can family members who are not included in the will contest it?
  • A: Yes, in some circumstances, certain family members who believe they have not been adequately provided for may be able to make a claim against the estate, even if they are not beneficiaries in the will. This is distinct from challenging the validity of the will itself.
  • Q: How long do you have to contest a will after someone passes away?
  • A: Time limits for contesting a will vary by jurisdiction and the type of claim. In New South Wales, for example, there are specific timeframes for making applications, often within six months of the grant of probate. It’s crucial to seek legal advice promptly.
  • Q: What are the costs involved in contesting a will?
  • A: Contesting a will can be expensive, involving legal fees, court costs, and potentially the cost of obtaining expert evidence. The court may order the losing party to pay the legal costs of the winning party.
  • Q: Can a person make a valid will if they have a medical condition?
  • A: Yes, a person can make a valid will even if they have a medical condition, provided they meet the legal requirements for testamentary capacity at the time the will is made. The condition itself doesn’t automatically invalidate a will.
  • Q: What is the role of the executor in a will dispute?
  • A: The executor is responsible for administering the estate according to the terms of the will. In a dispute, the executor may have to defend the will’s validity and can be involved in legal proceedings.
  • Q: What if the person who made the will was elderly?
  • A: Age alone does not mean a person lacks testamentary capacity. The focus is always on the individual’s mental state at the time the will was executed, regardless of their age.
  • Q: Where can I find more simplified case summaries from NSW Supreme Court?
  • A: You can find more simplified case summaries on topics like this by visiting NSW Supreme Court cases on medigosa.com.

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