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№ 186 Case Study — Buying & Selling a Business

An Outdated Insurance Certificate Nearly Cost an Exeter Buyout

Two clinicians who bought out their clinic's founder thought a clean workplace insurance certificate meant the account was current, until a letter six weeks after closing said otherwise.

Buying & Selling a Business8 min readExeter, OntarioWorkplace insurance clearance gaps
All Buying & Selling a Business case studies
ClientZofia and Vasyl, the associate dentist and physician who bought out their clinic's founder
The issueA post-closing letter revealed a multi-year workplace insurance premium shortfall the pre-sale clearance certificate had not caught
ServiceRebuilt three years of payroll and premium records to isolate the pre-closing shortfall and pursued the seller under the purchase agreement's indemnity
ResolutionA clear win, the seller covered nearly the entire shortfall and the clinic's account was brought fully current

The situation

The letter arrived six weeks after closing, addressed to the clinic rather than to any one owner, and Zofia read it twice before she understood what it meant. The provincial workplace insurance board was writing to advise that the clinic's account showed a premium shortfall stretching back close to three years, and that as the current employer of record, the corporation, now owned by Zofia and Vasyl rather than its founder, Iryna, was responsible for resolving it. Nothing in the letter mentioned that the gap predated their ownership. It simply named the account, named the balance, and asked for payment.

Zofia and Vasyl had bought the clinic from Iryna five months earlier, for a price a little above $6 million. Both had worked there for years before the sale, Zofia as an associate dentist and Vasyl as a specialist physician in the multidisciplinary side of the practice Iryna had built, and when Iryna decided to retire, buying the clinic together rather than watching it sell to an outside group was, for both of them, the obvious choice. They financed the purchase through a combination of personal savings, a line of credit, and a loan secured against the practice itself, and the deal closed without apparent difficulty.

As part of due diligence before closing, their lawyer at the time had obtained a standard clearance certificate from the workplace insurance board, confirming the clinic's account was in good standing with no outstanding premiums owed. That certificate satisfied their lender's checklist and their own, and the sale proceeded on the understanding that whatever liabilities existed on the payroll side, the clinic was current. Iryna's asking price and the deal terms had been built around a clean operating history.

The letter six weeks later suggested that understanding had been wrong, or at least incomplete, and it left Zofia and Vasyl facing a bill for a period when the clinic had still been Iryna's. They came to us not knowing whether the certificate they had relied on was simply outdated by the time of closing, or whether it had never told the full story to begin with. What worried them most was the awkwardness of it. Iryna was not a stranger they could simply sue and move on from, she was someone they had worked alongside for a decade, had trained under, and still saw socially through the small circle of clinicians in the area.

What the review found

A clearance certificate from the workplace insurance board is a snapshot, not a guarantee. It confirms that an employer's account is in good standing as of the date it is issued, based on the classification and payroll figures the employer has reported up to that point. It does not audit those figures, and it does not protect a buyer against a shortfall the board itself has not yet discovered. Iryna's clinic had a certificate showing good standing at the time of the sale, and that certificate was accurate as far as it went. What it could not show was a classification problem sitting underneath the numbers, one the board had not yet caught.

When we brought in a forensic bookkeeper to reconstruct three years of the clinic's payroll and premium filings, the shortfall started to make sense. Several administrative and clinical support staff had been classified for premium purposes under a lower-risk category than the work they actually performed, a classification error that had been carried forward, unnoticed, through multiple years of filings. On its own, a small classification gap can look immaterial. Compounded over three years across a payroll of the size Iryna's clinic carried, it added up to a real number, and it was the kind of error the board's own periodic review was always going to catch eventually.

The rebuilt accounting mattered for a second reason beyond the amount. The purchase agreement Zofia and Vasyl had signed included a standard indemnity from Iryna for liabilities that arose from the period before closing, but that indemnity was only useful if the shortfall could actually be tied, with real numbers, to specific years under Iryna's ownership rather than treated as a vague, disputed figure the two sides argued about indefinitely. Once the bookkeeper's reconstruction showed which portion of the shortfall belonged to which year, the question stopped being whether Iryna owed anything and became simply how much.

The reconstruction also answered the question Zofia and Vasyl had been afraid to ask directly: whether Iryna had known about the shortfall and said nothing. The records showed she had not. Her own accountant had made the classification decision years earlier, before Iryna had any thought of selling, and nothing in the file suggested anyone had noticed the error until the board's letter arrived. That mattered less for the amount owed than for how the conversation with Iryna went afterward.

What we did

  1. Obtained the board's full account history. We requested the complete premium and classification history behind the letter, not just the balance owing, because a demand for payment without the underlying detail gave Zofia and Vasyl no way to tell what portion, if any, related to their own five months of ownership. The board's records, once requested formally, went back further than the letter itself had suggested, giving us a clearer starting point than we expected.
  2. Engaged a forensic bookkeeper. We brought in an accountant experienced in reconstructing payroll and premium filings to rebuild three years of the clinic's records against the classifications the board actually used, because the shortfall could not be understood, let alone allocated fairly, without knowing exactly where the misclassification began. The reconstruction took several weeks and drew on payroll registers, staff role descriptions, and the clinic's own historical premium filings.
  3. Isolated the pre-closing portion. Once the reconstruction was complete, we separated the shortfall into the years it accrued in, confirming that all but a small final-month sliver of the total predated the sale and belonged, under the purchase agreement, to Iryna rather than to the corporation's current owners. That year-by-year breakdown mattered because it let us show, rather than assert, where responsibility for each dollar actually sat, which is a different conversation than telling Iryna's counsel to simply take our word for it.
  4. Invoked the indemnity clause. We formally notified Iryna's counsel of the shortfall, attached the bookkeeper's reconstruction, and made a demand under the purchase agreement's indemnity provision for the pre-closing portion, framing the claim around specific figures rather than the vague concern the original letter had raised. We also flagged, in the same letter, that the reconstruction did not suggest any knowledge or concealment on Iryna's part, which kept the exchange businesslike rather than accusatory.
  5. Negotiated the disputed final month. Iryna's side pushed back on a small portion straddling the closing date, arguing some of it belonged to the buyers' own reporting after takeover. Rather than litigate a few thousand dollars over a boundary that genuinely was ambiguous, we agreed to split that narrow window, preserving goodwill and keeping the focus on the much larger, clearly pre-closing claim.
  6. Arranged direct payment to the board. Rather than routing settlement funds through the clinic and risking any delay in clearing the account, we negotiated for Iryna to pay her portion of the shortfall directly to the workplace insurance board, so the account was brought current as quickly as the board's processing allowed. Routing the money through the clinic first would have added an extra step, and an extra chance for the payment to be misapplied or delayed against the wrong account year.
  7. Corrected the classification going forward. We worked with the clinic's new bookkeeper to confirm all staff were classified correctly under the current premium rate categories, so the same gap could not quietly reopen under Zofia and Vasyl's own ownership, and put a written procedure in place for reviewing classifications whenever a new role was added to the payroll.

The outcome

Iryna paid her portion of the shortfall, a little over $71,000, directly to the workplace insurance board within a month of the demand, and the clinic's account was brought fully current shortly after. Zofia and Vasyl covered a small remaining balance tied to the disputed final month, an amount small enough that contesting it further would have cost more in fees than it was worth. Between the two figures, the shortfall the account had carried was resolved in full within roughly two months of the original letter arriving.

The clinic never lost its clearance status through the process, and its coverage was never interrupted, which mattered because an active clearance certificate matters for the clinic's own contracts with staff and suppliers, not just for future sales. Zofia and Vasyl also came out of the process with a corrected classification on file, closing off the possibility that the same underlying error could resurface years later under their own ownership. Their new bookkeeper now reviews the classification annually rather than treating it as a one-time item on the payroll checklist.

What made the difference was not the letter or the indemnity clause on their own, both existed the whole time, but the reconstruction that turned a vague, alarming demand into a specific, allocable number. Without it, Zofia and Vasyl would have been negotiating from a position of not actually knowing whether they owed the full amount, a portion of it, or none of it at all, and Iryna's side would have had every reason to argue for the smallest possible share.

The relationship survived the process largely intact. Iryna, once she understood the numbers were not in dispute, paid quickly and without the drawn-out resistance Zofia had privately feared, and the three continued to see each other at the same professional gatherings they always had, the shortfall now a settled matter rather than an open wound.

What you can learn from this

  • A clearance certificate confirms an account is in good standing as of the date it was issued, it does not audit the underlying numbers, so a clean certificate at closing does not rule out a shortfall the certificate simply had not caught yet.
  • If a post-closing liability surfaces from before your purchase, do not accept a lump demand at face value. Ask for the full account history and get it reconstructed so you can see exactly which years, and whose ownership, it actually belongs to.
  • An indemnity clause for pre-closing liabilities is only as useful as your ability to prove the number. Vague concern invites vague argument, a specific, dated reconstruction turns a dispute into arithmetic.
  • Classification errors in payroll-based insurance premiums tend to compound quietly for years before anyone notices. If you are buying a business with employees, ask specifically how staff are classified, not just whether the account is currently clear.
  • When you are buying out a colleague or a founder you have worked alongside for years, it can feel awkward to press hard on due diligence. The eventual bill, if something is missed, lands on the new owner regardless of how the relationship felt at closing.
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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