Appointing a Will Executor: How to Avoid Sibling Rivalry & Estate Disputes

Key Takeaways

  • Fiduciary duty & self‑dealing rule: An executor must act solely in the estate’s best interests; buying estate property breaches the rule set out in In the Will of Greer (1911) 11 SR (NSW) 21 and can lead to disputes and court removal.
  • Single trusted child + clear communication: Appoint one child as sole executor and explain the choice (e.g., relevant qualifications, time, organisational skills) to manage expectations and avoid resentment.
  • Professional independent executor option: Engaging a solicitor, accountant or the NSW Trustee & Guardian provides impartial expertise, removes personal conflicts and often costs less than litigation from sibling fights.
  • Avoid sibling co‑executors when rivalry exists: Joint sibling executors risk dead‑locks over asset valuation, sales or administration, causing costly delays and possible court intervention.
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Introduction

Choosing an executor for your will is a critical step in estate planning that can profoundly affect family harmony. When a parent passes away, unresolved sibling rivalries can surface, turning the administration of an estate into a source of significant dispute and potential litigation over the inheritance.

For those creating a will, making a thoughtful decision about who to appoint as executor is essential to prevent such family disputes. This guide offers practical strategies for navigating this choice, aiming to minimise potential conflicts and avoid costly litigation, thereby ensuring your estate is administered smoothly while preserving family relationships.

Understanding an Executor’s Role & Why Your Choice Is Crucial

The Key Responsibilities of an Executor in an Estate

An executor is responsible for finalising the legal, financial, and personal affairs of the person who has passed away. This demanding role involves numerous administrative tasks that can be both time-consuming and challenging to manage, especially during a period of grief.

The primary duties of an executor for an estate include:

ResponsibilityDescription
Arranging the FuneralOrganising the funeral and arranging for the disposal of the body in accordance with the deceased’s wishes.
Applying for ProbateApplying to the court for a grant of probate, the legal document authorising them to manage the estate.
Managing Estate AssetsIdentifying, collecting, valuing, and protecting all assets of the estate until they can be distributed.
Settling Debts & TaxesIdentifying liabilities, which includes understanding what happens to debts after death, and managing the deceased’s taxation affairs.
Defending the EstateTaking responsibility for defending the estate during legal proceedings if claims are made or the will is contested.
Distributing the AssetsDistributing the remaining assets to the beneficiaries exactly as specified in the terms of the will.

Important Qualities of an Effective & Trustworthy Executor

Selecting the right person to be your executor is a critical decision that can prevent potential conflicts and ensure your estate is administered smoothly. The ideal individual should possess several key qualities that enable them to handle the complexities of the role with integrity and efficiency.

An effective and trustworthy executor should demonstrate the following attributes:

QualityExplanation
TrustworthinessMust be trusted to act honestly and in the best interests of the estate when handling sensitive financial and personal matters.
Organisational SkillsNeeds to be detail-oriented and efficient to manage the extensive paperwork and administrative tasks involved.
Strong CommunicationEssential for managing expectations and minimising misunderstandings with beneficiaries, lawyers, and other parties.
ImpartialityCrucial for acting in the interests of all beneficiaries without favouritism to avoid disputes or litigation.
Personal ResilienceHelps in calmly and professionally navigating emotionally charged situations or reactions from family members.

The Risks of Appointing Siblings as Executors

How Sibling Rivalry Can Escalate During Estate Administration

A parent’s death can be a significant test for any family, often resurfacing old tensions between siblings. The grief and stress associated with losing a loved one can trigger long-dormant resentments and rivalries, transforming the estate administration process into a battleground for settling old scores.

Pre-existing family dynamics, such as historical grievances or differing expectations, can easily lead to disputes over the will and inheritance, making it important to understand the process of navigating sibling disputes over a will. Moreover, appointing siblings who do not get along as co-executors can worsen the situation. Instead of bringing them together, the added pressure of the executor role is more likely to deepen the divide and escalate potential conflicts into costly litigation.

Common Disputes That Arise Between Sibling Co-Executors

When sibling co-executors are unable to agree, it can lead to significant delays and increased costs for the estate. Disagreements often arise from differing viewpoints on how to manage the estate and distribute assets, causing the entire process to reach a stalemate.

Common points of contention that can fuel a sibling dispute include:

Area of DisputeDescription
Asset ValuationSiblings may have conflicting opinions on the true market value of estate assets, such as real estate or family businesses.
Property SalesOne executor may wish to sell a property for distribution, while another may want to retain it for personal or sentimental reasons.
Personal ItemsThe distribution of heirlooms and personal belongings with sentimental value can become highly contentious.
Inefficient AdministrationOne executor may fail to perform their duties promptly, causing frustration and distrust among others.

The Dangers of an Executor’s Conflict of Interest

An executor has a fiduciary duty to act in the best interests of the estate and all its beneficiaries. This duty can be compromised when the executor is also a beneficiary, creating a potential conflict of interest where their personal financial interests clash with their obligations to the estate.

This conflict is highlighted by the “self-dealing rule,” which generally prohibits an executor from purchasing property from the estate. As established in the case of In the Will of Greer (1911) 11 SR (NSW) 21, an executor cannot assume the dual role of vendor and purchaser. This is because their duty to secure the highest price for the estate conflicts with their interest in purchasing at the lowest price. Such a situation can lead to:

  •   Distrust among beneficiaries
  •   Legal challenges to executor actions
  •   Applications to the court for the executor’s removal

Strategic Executor Appointments to Prevent Family Disputes

Appointing a Single Child as Executor & Communicating Your Reasons

One strategy to minimise potential conflicts is to appoint a single child as the sole executor of your will. While this may seem to favour one sibling, the key to preventing disputes lies in clear and open communication. It is vital to explain the reasoning behind your choice to all your children to manage their expectations and avoid feelings of exclusion or resentment.

When discussing your decision, be transparent about why you selected a particular individual. Your explanation can help other family members understand and accept your choice, preserving harmony.

For example, you might explain that the chosen executor:

  •   Has professional qualifications or financial experience relevant to the role
  •   Possesses strong organisational and communication skills
  •   Has more available time to dedicate to the demanding responsibilities of estate administration

By focusing on the specific qualities that make one child suited for the executor role, rather than highlighting any perceived shortcomings of the others, you can frame the decision positively. This approach helps ensure that your choice is seen as a practical one made in the best interest of the estate, rather than a personal slight that could fuel a future inheritance dispute.

The Potential Pitfalls of Appointing Sibling Co-Executors

Parents often appoint multiple children as joint executors, believing it is the fairest approach and will promote cooperation. While you can appoint up to four individuals in New South Wales, this decision can inadvertently create a recipe for conflict, particularly if there is a history of sibling rivalry.

Appointing co-executors who do not get along can lead to significant problems. Disagreements over key decisions, such as how to value assets or whether to sell a family property, can bring the estate administration to a complete standstill.

This stalemate not only causes substantial delays but also increases legal and administrative costs, ultimately reducing the value of the inheritance for all beneficiaries.

Furthermore, the pressure of the executor role can amplify pre-existing tensions. Instead of bringing siblings together, the shared responsibility may push them further apart, turning the process into a battleground for settling old scores. Appointing all your children as executors simply to avoid offending anyone is not advisable if you know they are prone to disagreement.

Using an Independent Professional to Ensure Impartiality in Your Estate

A highly effective strategy to prevent family disputes is to appoint an independent third party to act as your executor. This removes the significant burden from your loved ones and ensures the estate is managed with impartiality.

A neutral executor can be:

  •   A solicitor
  •   An accountant
  •   A professional organisation such as the NSW Trustee & Guardian

Appointing a professional offers several key advantages, especially when family dynamics are complex:

  •   They have no personal or financial interest in the estate, allowing them to make unbiased decisions that serve the best interests of all beneficiaries
  •   They possess the specialised legal, financial, and administrative expertise required to navigate the complexities of estate administration efficiently
  •   They provide a neutral buffer between beneficiaries, which can be invaluable in preventing disagreements from escalating into costly litigation

While professional executors charge a fee for their services, this cost is often significantly less than the legal expenses that can arise from a prolonged sibling dispute. By engaging an expert, you can help preserve both your family’s harmony and the value of your estate.

Conclusion

Choosing an executor for your will is a critical decision that significantly impacts the administration of your estate and the harmony of your family. By understanding the risks of sibling rivalry and implementing strategic appointments, such as communicating your reasons for selecting one child or appointing an impartial professional, you can prevent potential conflicts and costly litigation.

Handling these complex estate planning decisions requires careful consideration and expert guidance to protect your assets and preserve family relationships. For trusted expertise in structuring your will to avoid future disputes, contact the specialist wills and estates lawyers at PBL Law Group today to ensure your final wishes are carried out smoothly and secure your family’s peace of mind.

Frequently Asked Questions

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Last Updated on October 10, 2025
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