Kentros v. Kentros, 2026 ONCA 546

Estate planning is intended to provide certainty. Yet even a carefully prepared Will can produce years of litigation if a drafting error prevents the document from carrying out the Testator’s true intentions.
The recent Ontario Court of Appeal decision in Kentros v. Kentros, is an excellent illustration of how a seemingly simple omission can have significant legal consequences. It also serves as an important reminder of the fiduciary obligations of Estate Trustees and the continuing uncertainty surrounding the rectification of Wills in Ontario.
Facts
Eftychia (“Effie”) Kentros executed a new Will shortly before her death in 2017.
The Will granted her husband, Manthos, a life interest in two Fort Erie properties. If he failed to survive her by 30 days, those properties were to pass directly to their grandchildren, Matteo and Sofia.
However, the Will failed to answer the obvious question:
- Who would inherit the properties after Manthos’ life interest ended if he survived Effie by more than 30 days?
Unfortunately, that is exactly what happened.
The drafting solicitor later acknowledged that he had inadvertently omitted the necessary remainderman clause from the Will.
A Costly Drafting Error
Following Effie’s death, Manthos obtained probate and took the position that he became the outright owner of the properties because he was also the residual beneficiary of the estate.
He then transferred the properties into an Alter Ego Trust for estate planning purposes.
Effie’s son, Dino, challenged the transfer and asked the Court to determine what his mother’s Will actually intended.
The litigation ultimately reached the Ontario Court of Appeal.
Court’s Decision
Both the application judge and the Court of Appeal concluded that the omission was a drafting mistake rather than an expression of the testator’s wishes.
The Court found compelling evidence that:
- Effie intended her husband to receive only a life interest.
- She wanted the Fort Erie properties to remain separate from the residue of her estate.
- She intended the properties ultimately to pass to her grandchildren.
- She never intended her husband to become the absolute owner.
Although Ontario law continues to deal with the scope of a Court’s authority to rectify a probated Will, the Court held that the application Judge reached the correct result.
The omitted remainderman clause was effectively recognized so that, upon the termination of Manthos’ life interest, one property would pass to grandson Matteo and the other to granddaughter Sofia.
Estate Trustees Cannot Exploit Drafting Errors
Perhaps the most significant aspect of the decision concerns the role of the Estate Trustee.
As Estate Trustee, Manthos owed fiduciary duties to the beneficiaries of the estate.
The Court held that he should not have attempted to take advantage of an obvious drafting mistake by treating himself as the outright owner of the properties and transferring them into an Alter Ego Trust.
The transfer was declared void ab initio, meaning it was legally invalid from the outset, and the properties were ordered returned to the estate.
An Estate Trustee’s obligation is to administer the estate honestly and in accordance with the deceased’s intentions, not to maximize his or her own personal benefit.
The Court Reaffirmed Several Important Principles
The decision reinforces a number of well-established principles of estate law.
1. The Testator’s Intention Remains Paramount
When interpreting a Will, Courts attempt to determine the deceased’s actual intention by considering the wording of the Will together with the surrounding circumstances existing when it was executed.
2. Courts Presume Against Intestacy
Where reasonably possible, Courts interpret a Will so that all of the Testator’s property is disposed of rather than allowing part of the estate to fall into intestacy.
3. Drafting Errors Can Be Corrected
Where there is clear and convincing evidence that a drafting mistake has prevented a Will from expressing the Testator’s intentions, Ontario Courts may interpret the document in a manner that gives effect to those intentions.
4. Extrinsic Evidence Has Limits
Generally, Courts are reluctant to admit evidence from disappointed beneficiaries about what the deceased supposedly intended.
In Kentros, however, the Court relied heavily upon:
- the drafting solicitor’s admission that an error had occurred,
- admissions made against the parties’ own interests,
- corroborating evidence that confirmed the deceased’s intentions.
The Court emphasized that this was an unusual case and should not be viewed as opening the door to self-serving evidence in future estate litigation.
Importance
Kentros is significant for estate lawyers, estate trustees and anyone preparing a Will.
It demonstrates that:
- even experienced solicitors can make drafting mistakes;
- omitted remainder clauses can fundamentally alter an estate plan;
- Estate Trustees must always act in accordance with their fiduciary obligations;
- Courts will intervene where clear evidence establishes that a drafting error defeated the deceased’s intentions.
Perhaps most importantly, the Court acknowledged that Ontario law remains unsettled regarding rectification after probate, suggesting that future clarification may ultimately require legislative reform or a larger panel of the Court of Appeal.
Considerations
The Kentros decision illustrates how a single omitted clause can lead to years of expensive family litigation. Careful drafting, thorough review and precise estate planning remain the best safeguards against these disputes.
For estate trustees, the message is equally clear. Fiduciary obligations require the administration of an estate in accordance with the deceased’s wishes, not personal advantage. Attempting to capitalize on an obvious drafting mistake is unlikely to find favour with the Courts.
Brian Madigan LL.B., Broker
