TREADSTONE LAW · ONTARIO · DIGITAL LEGAL SERVICES · EST. MMXXI ·TSL
Home/Case Studies/Wills & Estates
№ 367 Case Study — Wills & Estates

A Letter in a Shoebox Undid a Simple Will

Yvette's will left everything to her sister outright, but a letter surfaced claiming the sister had privately promised to hold part of it for someone else entirely. Proving what was said, rather than what was written, became the whole case.

Wills & Estates8 min readPort Colborne, OntarioSecret and half-secret trusts
All Wills & Estates case studies
ClientMarieke, who believed her late partner Yvette had privately arranged for her to be provided for through Yvette's sister Saskia
The issueYvette's will left her estate outright to her sister Saskia, with no mention of Marieke, despite a letter suggesting a private arrangement between the sisters
ServiceInvestigated whether the letter established a secret trust binding Saskia to hold part of the estate for Marieke, and negotiated a resolution once the evidence proved incomplete
ResolutionA partial settlement gave Marieke a portion of the estate without a full trial, though less than the letter had implied and without a court ruling on whether a secret trust existed at all

The situation

The call came about six weeks after Yvette's funeral, and Marieke opened it by apologizing for not knowing where else to start. She and Yvette had been together for nineteen years, unmarried, no children, no joint will, nothing formalized beyond a shared mortgage that had been paid off years earlier. Yvette, an anesthesiologist, had built a comfortable estate on her own before the relationship even began, and the two of them had always kept their finances mostly separate out of habit rather than distrust.

Yvette's will, drafted a decade earlier through a different lawyer, left everything to her sister Saskia, a dentist who owned her own practice. There was no mention of Marieke anywhere in the document, which on its face read as an old will nobody had gotten around to updating. Marieke told us she had never worried about it, because Yvette had promised, more than once, that Saskia understood the estate was meant to support both of them and would 'do right by her' when the time came.

Then Saskia's own health took a sudden turn partway through the estate administration, a diagnosis that put her in and out of hospital for weeks and pushed every conversation about the estate to the back of both families' minds. What should have been a straightforward, if uncomfortable, discussion between two grieving people stretched into months of silence, missed calls, and a growing sense on Marieke's side that whatever informal understanding had once existed was quietly evaporating along with everyone's patience for pursuing it.

It was during a search through Yvette's old filing cabinet, done at Saskia's request while she was recovering, that a shoebox turned up containing a handwritten letter from Yvette to Saskia, dated four years before Yvette's death. In it, Yvette asked Saskia to 'make sure Marieke is looked after, the way we talked about, if anything ever happens to me.' Saskia had never mentioned the letter existed. Whether she had forgotten it, never seen it, or chosen not to raise it, nobody could say for certain, and by the time Marieke learned of it, the estate was most of the way through informal administration with Saskia holding the assets as the will directed.

Yvette's estate was substantial, somewhere in the range of three to five million dollars once the house, investment accounts, and a small vacation property were combined, and none of it had a paper trail connecting Marieke to any of it beyond that one letter.

The legal question

Ontario law recognizes something called a secret trust, a legal concept that exists precisely for situations like this one. If a person leaves property outright to someone in their will, but privately tells that person to hold some or all of it for a third party, and the person accepts that arrangement, courts can enforce the private promise even though the will itself says nothing about it. The idea is that a testator should not be able to defeat their real wishes just because the arrangement was kept off the page, and a beneficiary should not be able to keep a gift they only received on the understanding they would pass part of it along.

The catch is proof. A secret trust requires more than a general sense that the deceased wanted someone looked after. It generally requires evidence that the testator communicated a specific intention to the named beneficiary, and that the beneficiary accepted it, whether by words or by conduct that showed acquiescence. A letter helps, but a letter alone does not automatically prove all of that. Yvette's letter referenced 'the way we talked about,' which implied a prior conversation nobody else had heard and Saskia, given her health, was in no condition to discuss in detail when the letter first came to light.

There was also the question of what, exactly, the arrangement covered. The letter did not specify an amount, a percentage, or even a particular asset. It read as an appeal to conscience more than a set of instructions, which made it powerful evidence of Yvette's state of mind but a weak foundation for calculating a specific dollar figure a court could order paid. Proving a secret trust existed at all was one hurdle; proving its scope, if it existed, was a second and separate one.

Timing complicated matters further. Saskia's illness meant she could not be examined or pressed on the details for months without real risk to her recovery, and Marieke, understandably, did not want to be the person pushing a sick woman for answers about a private letter from her dead sister. That reluctance was decent and human, but it also meant the file sat without the one conversation that might have resolved everything quickly, forcing us to build a case around what documentary evidence existed rather than around Saskia's own account of what she and Yvette had actually agreed.

What we did

  1. Reviewed the letter and the surrounding estate file in detail, confirming the handwriting against other known samples of Yvette's writing and comparing the paper and ink against other documents from around the same period, since its authenticity, not just its content, would matter enormously if the matter proceeded past an initial demand and into a genuine dispute over the estate.
  2. Interviewed Marieke extensively about every conversation she recalled with Yvette regarding the sisters' understanding, building a careful timeline of what Yvette had said, when, and to whom, so the account could be tested rather than simply accepted. Throughout, we were disciplined about distinguishing Marieke's honest and long-held belief from what could actually be corroborated by someone other than Marieke herself, since a claim resting only on the interested party's own memory carries far less weight than one supported independently.
  3. Identified corroborating witnesses where they existed, including a close friend of Yvette's who recalled a conversation in which Yvette mentioned having 'sorted things out with Saskia' about Marieke, and a former neighbour who remembered Yvette expressing similar sentiments at a dinner years earlier, both of which strengthened the case for a real prior understanding even without pinning down its exact financial terms.
  4. Delayed formal contact with Saskia until her treatment reached a stable enough point that a conversation would not add to her medical burden, choosing a deliberately slower path over an aggressive one, which cost time on the file but avoided the real risk of a demand letter that looked coercive against a hospitalized recipient or that a court might later view unfavourably if the matter escalated.
  5. Opened a structured conversation with Saskia's own lawyer once she was well enough to engage, laying out the letter, the corroborating witness accounts, and the legal basis for a secret trust claim in plain terms, while acknowledging openly and early that the scope and dollar amount of any arrangement remained genuinely uncertain rather than overstating the strength of the file.
  6. Assessed litigation risk realistically for Marieke in a direct conversation about what a trial would actually look like, explaining that a full hearing on a secret trust claim built around one undated conversation and a general, non-specific letter carried real uncertainty on both the existence and the scope of any trust, and that a negotiated outcome, even an imperfect one, might genuinely serve her better than years of drawn-out litigation against a grieving, still-recovering defendant.
  7. Negotiated a settlement over several months that gave Marieke a defined share of the estate, well short of an equal split but meaningfully more than nothing, reached through multiple rounds of exchanges once Saskia's own counsel had independently reviewed the evidence and arrived at a broadly similar view of the risk sitting on their own side of the ledger. Each round narrowed the gap further, moving both sides toward a figure neither loved but both could defend as reasonable.
  8. Documented the settlement formally as a full and final resolution between the two women, with mutual releases covering any further claims either might raise, so neither side faced the prospect of this same letter resurfacing in a future dispute over whatever remained of the estate once the immediate matter closed. The release also protected Saskia from having to revisit, at some later point, a conversation with her sister she could barely bring herself to discuss once.

The outcome

Marieke and Saskia settled without a trial, roughly ten months after the letter first surfaced. Marieke received a share of the estate in the mid six figures, a meaningful sum but well below what an even split of the multi-million-dollar estate would have provided, and less than Marieke had hoped for when she first read her late partner's words asking that she be looked after. The settlement reflected the genuine uncertainty in the evidence: a real letter, a real conversation someone else half-remembered, but no complete account of what Yvette and Saskia had actually agreed on, and no admission from Saskia that a binding promise had ever been made in the way Marieke believed it had.

Both women avoided a trial that would have required Saskia, still recovering, to be examined at length about private conversations with a sister she was still grieving, and would have required Marieke to prove intentions that only two people ever fully knew, one of them dead and the other reluctant to speak about it in any detail. Neither outcome would have been comfortable for either woman, and the settlement let both step back from a fight neither one genuinely wanted to be in, at a point in both their lives when neither had much appetite left for a courtroom.

What the case did not produce was legal certainty about the letter itself. No court ever ruled on whether a secret trust existed, what its precise terms were, or whether Saskia had genuinely accepted an obligation to Marieke the day she read her sister's words. That question was compromised away rather than answered, which is common in cases built on private conversations rather than written instructions, and it left both sides with a result they could live with rather than one either would call a clean, decisive win.

Marieke told us afterward that the settlement, imperfect as it was, gave her something the litigation might never have: an ending. Saskia, for her part, kept the bulk of the estate her sister had left her outright, and the two women, who had known each other for nearly two decades through Yvette, did not speak again after the papers were signed, a quiet cost of the dispute that no dollar figure in the settlement addressed.

What you can learn from this

  • A secret trust can override what a will says on paper, but only with real proof the deceased communicated specific instructions and the beneficiary accepted them. A vague sense of what someone 'would have wanted' is not enough on its own.
  • If you make a private promise about how you will handle an inheritance, put it in writing and be specific about amounts or shares. A letter that appeals to conscience without stating terms creates a dispute rather than resolving one.
  • Illness or bereavement partway through an estate dispute can stall everything for months. Building a slower, more careful timeline around a vulnerable party is often the responsible choice, even when it delays resolution.
  • Corroborating witnesses matter enormously in disputes about private conversations. A single letter is evidence, but a second person who recalls being told about the same arrangement changes the strength of a claim considerably.
  • A negotiated settlement that falls short of a full claim is not a failure. When the underlying evidence is genuinely uncertain, a compromise both sides can live with may be the most realistic outcome available.
This case study is entirely fictional. It does not describe any real client, file, or matter handled by Treadstone Law, and it is not a real file with details changed. All names, people, properties, businesses, dollar amounts, dates, and events are invented, and any resemblance to a real person, business, or situation is coincidental. Fictional scenarios like this one illustrate the kinds of legal issues people in Ontario commonly face and how a lawyer can help. They are general information, not legal advice — no two matters unfold the same way, and nothing here predicts the outcome of any real case. Reading a case study does not create a lawyer-client relationship. If you are facing something similar, speak with a lawyer about your specific circumstances.

This is a wills & estates problem we handle

Start a file online — flat, published fees, reviewed by a licensed lawyer before a dollar is owed.

ContactStart a File →