Contesting a Will in Ontario: A Guide to Breach of Fiduciary Duty

Can you sue an executor for mishandling an estate in Toronto?

Yes. In Ontario, an executor (legally known as an Estate Trustee) owes a “fiduciary duty” to the beneficiaries. If they prioritize their own interests, mismanage assets, or fail to provide a transparent accounting, you can bring an application to the Ontario Superior Court of Justice to hold them personally liable for losses or have them removed. At Powell Litigation, our Toronto estate litigation team specializes in helping beneficiaries who are being ‘frozen out’ of decisions or denied financial transparency hold trustees accountable for every dollar in the estate.

What is “Fiduciary Duty” in Plain English?

In the context of Ontario estate law, a fiduciary duty is the highest standard of care recognized by our legal system. When someone is named an executor, they aren’t just “in charge” of the paperwork; they are legally required to act with total loyalty and “even-handedness.”

Essentially, an executor must put the beneficiaries’ interests above their own. They cannot use estate funds as a personal loan, they cannot sell estate property to themselves at a discount, and they cannot “sit” on assets indefinitely without a valid reason.

3 Red Flags of Executor Misconduct

While fiduciary duty refers to the executor’s conduct after a death, many disputes actually start with the validity of the document itself. If you suspect the will was signed under duress or lack of capacity, you may need to learn how to contest a will in Ontario before the assets are distributed.

However, if the will is valid but the executor is the problem, look for these three major warning signs:

  • Lack of Transparency (The “Black Box”): If the executor refuses to provide a “Passing of Accounts” (a detailed ledger of every dollar in and out), or if they ignore reasonable requests for information, this is a red flag.
  • Self-Dealing: This occurs when an executor uses their position to benefit themselves, such as living in the deceased’s home rent-free or paying themselves excessive “executor compensation” without court approval.
  • Unreasonable Delay: In Ontario, there is a general rule of thumb called the “Executor’s Year” to wrap up an estate. If years have passed and the executor hasn’t distributed assets or even applied for probate, they may be in breach of their duty to settle the estate diligently.

Connecting Strategy to Results

At Powell Litigation, we don’t just theorize about fiduciary duties; we hold trustees accountable. For example, in our Case Results, we highlight successful outcomes where we’ve secured significant awards for beneficiaries who were victims of financial mismanagement and fraud. Whether the dispute involves $100,000 or $10,000,000, the principle remains: the executor is a servant of the will, not its master.

FAQ: Common Questions About Ontario Will Contests

How long do I have to contest a will in Ontario?

Under the Limitations Act, 2002, you generally have two years from the date the claim was “discovered” to start legal proceedings. In many cases, this starts when you first see the will or realize the executor is acting improperly. However, because every case is unique, you should consult an estate litigator immediately to ensure you don’t miss a deadline.

What are the costs of estate litigation?

Historically, many people believed “the estate pays the legal fees.” In 2026, Ontario courts follow a “loser pays” model. While the court has discretion to order the estate to cover costs if the dispute was caused by an ambiguous will, an unsuccessful or unreasonable litigant may be ordered to pay the other side’s legal fees personally.

Can a beneficiary remove an executor?

Yes. If you can prove to a judge that the executor’s continued presence will endanger the estate assets or that there is an irreconcilable conflict of interest, the court can remove them and appoint an “Estate Trustee During Litigation” (ETDL) or a professional trust company.

Protect Your Inheritance Today

If you suspect an executor is mismanaging assets or failing in their fiduciary duties, time is of the essence in Ontario. Our litigation team has a proven track record of holding trustees accountable and securing the distributions beneficiaries deserve. Reach out to us today for a case review!