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№ 257 Case Study — Litigation

One Neighbour Did the Work, Another Wouldn't Pay

Three Oakville neighbours agreed, informally, to split the cost of a shared development project. When one refused to repay her share after the work was done, the dispute came down to what could be proven without a signed agreement.

Litigation8 min readOakville, OntarioUnpaid work with no signed contract
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ClientAdaeze, a multi-unit franchise owner in Oakville who fronted a shared development project
The issueA neighbour refused to repay her roughly $800,000 share of a shared development project after the work was complete, with no signed agreement in place
ServiceBuilt a documented unjust enrichment claim from payment records, a valuation of actual benefit, and interpreter-verified evidence
ResolutionSettled for roughly $780,000, close to the amount advanced, without going to trial

The situation

Roughly $2.5 million was tied up in an arrangement between three neighbours in Oakville that had never been put on paper. Adaeze owned several locations of a multi-unit franchise business. Winston ran a small manufacturing company two streets over. The two of them, along with a third neighbour, Cherise, held adjoining lots that backed onto a shared easement, and for years the three had talked about jointly severing and redeveloping the land once the last holdout on the block sold. When that happened, the three agreed, informally and over a series of kitchen-table conversations, to split the cost of surveys, engineering reports, a rezoning application, and the construction of a shared access road that would unlock separate building permits for each of their properties.

Adaeze took the lead. She had managed a similar expansion for her franchise business years earlier and was comfortable coordinating contractors, chasing permits, and fronting invoices while the group sorted out a formal cost-sharing agreement later. Winston contributed his share of the early costs as they came due. Cherise agreed verbally to the same arrangement but was slower to pay, and over eighteen months Adaeze advanced increasingly large amounts from her own accounts to keep engineers, a planner, and a contractor working, on the understanding that all three would settle up once the road was built and the lots were ready to be severed.

The road was built. The rezoning went through. Then Cherise told Adaeze and Winston that she had changed her mind about the project and did not intend to reimburse Adaeze for anything, on the basis that nothing had ever been signed. By that point Adaeze had personally covered close to two-thirds of the total cost, expecting reimbursement from Cherise's share once the properties were ready to be developed or sold. Winston, who had paid his own share in full, backed Adaeze's position but had no direct financial exposure left to recover.

Adaeze's first language was not English, and much of the day-to-day coordination with contractors, and the eventual conversations with Cherise, had gone through a family member acting as an informal translator, which became relevant once the dispute moved toward a claim. Both Adaeze's franchise locations and Winston's manufacturing business still needed their daily attention throughout, and neither of them could set that work aside while the question of repayment got sorted out.

The problem

Cherise's position, once she retained her own counsel, was straightforward: there was no signed contract, so there was no enforceable obligation to pay anything. She had made no written promise, signed no cost-sharing agreement, and argued that any money Adaeze spent, she spent as a voluntary business decision that benefited her own properties as much as anyone else's. That argument put Adaeze's claim into the territory of unjust enrichment rather than breach of contract, a claim that does not depend on a signed document but on showing that one party was enriched, another suffered a corresponding loss, and there is no legal reason the enrichment should be allowed to stand.

Proving that shape of case is harder than it sounds when the money moved over eighteen months through dozens of small and not-so-small payments, some by e-transfer, some by cheque, and a few in cash advanced directly to a contractor when an invoice was due immediately. Adaeze had kept records, but they were not organized as a ledger; they were text messages, emails, and a mix of receipts in two languages. Reconstructing a clean accounting of who paid what, when, and for whose benefit, while also showing the payments were made on a shared understanding rather than as a gift or a unilateral choice, was the core of the work.

There was a second complication. Cherise argued that even if she had benefited from the road and the rezoning, the benefit to her specifically was smaller than her one-third share implied, because her lot needed less servicing work than the other two. That argument, if it succeeded, would have reduced any recovery well below what Adaeze had actually advanced on her behalf, even if the unjust enrichment claim succeeded on the broader question of liability.

The interpretation issue added a layer that had to be handled carefully rather than treated as a footnote. Several of the conversations where the parties discussed splitting costs three ways had happened with a family member translating in real time, and Cherise's lawyers signalled early that they intended to challenge whether Adaeze's account of those conversations was reliable, given that she had not been following them in her first language. If that challenge succeeded in undermining Adaeze's evidence, the claim would have to rest almost entirely on the paper trail of payments, without the benefit of her own account of the conversations that shaped them.

What we did

  1. Reconstructed the accounting. We pulled together every e-transfer, cheque, and cash advance Adaeze had made over the eighteen months, cross-referencing them against contractor invoices and permit-office receipts, and built a single chronological ledger showing exactly what was paid, to whom, and on which project milestone. This mattered because an unjust enrichment claim rises or falls on being able to show precisely what was spent and that it produced a real, measurable benefit to the other side, not a rough estimate.
  2. Arranged qualified interpretation from day one. Rather than let the language issue surface later as a weakness, we arranged a certified interpreter for every meeting, statement, and eventual examination involving Adaeze, and kept a record of who interpreted and when. This meant Adaeze's evidence about the kitchen-table conversations came from her own words, accurately rendered, rather than through the informal, after-the-fact recollection of a family member.
  3. Valued Cherise's specific benefit, not just the total spend. We retained a quantity surveyor to separate the shared costs into what specifically benefited each of the three lots, so the claim tracked the value Cherise received rather than an even one-third split that her lawyers could attack as arbitrary. This closed off her argument that her share of the benefit was smaller than the amount being claimed against her.
  4. Sent a detailed demand before filing. Before commencing anything, we sent Cherise a demand letter laying out the accounting, the interpreter-verified account of the agreement, and the surveyor's valuation, giving her the chance to resolve the matter without a claim. This mattered less for settling early, which it did not, than for establishing a clear paper record of what she had been told and when, ahead of any later credibility argument.
  5. Filed the claim and pursued early disclosure. When the demand went unanswered, we filed a claim framed in unjust enrichment and pushed for early exchange of Cherise's own financial and project records, which showed she had, in fact, budgeted internally for a one-third share before changing her position. That internal document undercut her later argument that no shared arrangement had ever existed, and it came from Cherise's own files rather than from anything Adaeze or Winston had produced, which made it far harder for her side to dismiss.
  6. Prepared Adaeze for examination with full interpreter support. We worked through her evidence in advance with the same interpreter who had been present throughout, so her account under questioning matched, in substance, what she had said at the time the arrangement was made, closing off the opening Cherise's side had hoped to find. That preparation meant Adaeze's evidence stood on its own once she was examined, rather than depending on a family member's memory of a conversation years later.
  7. Negotiated from a position built on documents, not memory. By the time settlement discussions resumed, our position rested on the ledger, the surveyor's valuation, and Cherise's own internal budget, not on competing recollections of a conversation. That let us hold firm on the core claim while remaining flexible on the timing and structure of payment, since the documents did not become less true just because Cherise's side kept pushing back on them.

The outcome

Cherise settled before trial, agreeing to pay Adaeze just over $780,000, reflecting close to the full amount Adaeze had advanced on her behalf once the quantity surveyor's valuation was factored in, with a small reduction tied to servicing costs that genuinely benefited the other two lots more than hers. Winston's own costs had already been paid in full over the course of the project, so his role in the claim was primarily as a supporting witness to the original three-way understanding, and he recovered nothing further because he had no outstanding exposure of his own.

The settlement was reached after examinations were complete but before a trial date was set, once it became clear that Cherise's credibility argument about the interpreted conversations was not going to hold up against a properly documented interpreter record, and that her own internal budget document had already conceded the substance of the arrangement. Adaeze recovered the funds over a structured payment schedule rather than as a single lump sum, since Cherise's assets were tied up in the now-rezoned property.

The road and the rezoning that had caused the dispute remained in place, and all three lots kept the development value the shared work had created, so the practical outcome of the original project survived even though the three-way relationship behind it did not. Adaeze and Winston no longer coordinate on shared projects with Cherise, but the financial dispute that could have wiped out much of what Adaeze had personally advanced was resolved in her favour, with the paper record and the interpreter's careful documentation doing most of the work that a signed contract would otherwise have done. For Adaeze, the case also confirmed that being the driving force on an informal project carries real financial risk when nothing is written down, a lesson she has since applied by insisting on signed cost-sharing terms before advancing money on any joint venture.

What you can learn from this

  • Put shared cost arrangements in writing before spending starts, not after. A short letter or email confirming who pays what and when protects the person doing the up-front work far more cheaply than reconstructing an unwritten agreement later, and removes the argument that money advanced was a gift.
  • Keep a running ledger, not a shoebox of receipts. If you are advancing money on a shared project, track every payment against a project milestone as you go; a clean, contemporaneous record is far more persuasive than assembling one after a dispute starts.
  • If English is not your first language, insist on a qualified interpreter for anything that might later matter. Accurate, professionally interpreted evidence protects you from a credibility challenge that has nothing to do with the facts and everything to do with how a conversation was recalled.
  • An unjust enrichment claim can succeed without a signed contract, but only with proof. You need to show a real benefit to the other side, a real loss to you, and no good reason for them to keep it, and each of those needs evidence, not just an account of what was agreed.
  • Match the value you claim to the specific benefit received. Splitting shared costs evenly may not reflect what each party actually gained, and a claim built on the actual, provable benefit to each side is harder to attack than one based on a round-number split.
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.

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