When a Condo Renovation Turned Two Partners Into Co-Defendants

The situation

Before any lawyer was involved, Kayla and Brandon tried to fix it themselves. Over the phone, the night the water was still being pumped out of the unit below hers, they agreed to split the repair costs down the middle and sort out the details later. That agreement lasted about six weeks. Once the insurers got involved and the real number came into view, both of them quietly stopped answering the other's calls, and Kayla started drafting emails she never sent because she could not find a version that did not sound like an accusation.

Kayla owned a unit in a mid-rise Peterborough building and ran a construction company of her own, though not one licensed for the plumbing work her renovation needed. She hired Brandon, who owned a multi-unit franchise doing kitchen and bathroom renovations across the region, to open a wall between her kitchen and a shared plumbing stack and reroute a drain line. Within two weeks of the work finishing, a joint in that new line failed overnight. Water travelled down through three floors before anyone noticed, soaking finished basements, drywall, and flooring in units that had nothing to do with the renovation.

The unit directly below Kayla's belonged to Andrei, who owned several units in the building as long-term rentals through his franchise business. His unit took the worst of it, with water pooling under laminate flooring for hours before a tenant reported it, and he became the lead voice pushing the condominium corporation to pursue a claim rather than let owners absorb the cost individually. The corporation and the affected owners, with Andrei coordinating much of the evidence gathering on their side, pursued a claim against both Kayla and Brandon, seeking repair costs that ultimately ran into seven figures once structural drying, mould remediation, and displaced-owner accommodation were added up.

Kayla and Brandon were named as co-defendants in that main action, which meant that on paper they were on the same side, jointly facing the same claim from Andrei and the corporation, even though each privately believed the other was responsible for what happened. That was the part that made an already difficult file harder. Brandon had done renovation work for Kayla's company on other jobs for years; they had a working friendship built on mutual trust. Once the crossclaim became necessary, phone calls turned into terse emails, and by the time the file reached our office, neither side was willing to be in the same room. The legal question of who owed what could not be answered until the personal one was defused.

What the documents showed

A crossclaim is a claim one co-defendant brings against another co-defendant inside the same lawsuit, used when both are being sued by the same plaintiff but each believes responsibility should fall more heavily, or entirely, on the other. Here it meant that while Kayla and Brandon remained jointly named in the main action brought by Andrei and the condominium corporation, they also had to litigate, or settle, the question of how the loss should be divided between the two of them, on a separate track from the plaintiffs' claim itself.

The documents did not point cleanly in either direction, which is what made a negotiated allocation realistic rather than an all-or-nothing fight. Brandon's franchise had pulled a permit for the renovation, but the scope described on it did not include the plumbing reroute, which suggested the change had been made informally, outside the inspected plan. Text messages between Kayla and Brandon's site lead showed Kayla approving a change order to move the drain line after the permit was issued, without asking whether that required a fresh inspection. That supported Brandon's position that Kayla had directed uninspected work and should bear the greater share of responsibility for a change that was never properly reviewed.

Set against that, Brandon's crew's own invoices showed the joint that failed had been installed using a fitting type his franchise's own internal standards flagged as unsuitable for that kind of connection. An email from Brandon's project manager, sent two days after the leak, acknowledged internally that the crew had used what was on the truck rather than ordering the correct part. That supported Kayla's position that the failure was a workmanship problem regardless of who approved the change, and that a properly trained crew should have flagged the substitution before installing it.

Andrei's own documentation mattered too, though it went to damages rather than fault. His detailed photographs and the tenant's timeline of when the leak was first noticed helped establish how long water had been pooling before anyone acted, which affected how much of the damage in his unit was attributable to the initial failure versus a delayed response. That evidence sat outside the crossclaim itself but shaped how much was ultimately at stake in the main action both co-defendants were still facing together.

Neither side had a document that ended the argument outright. What the record did establish, credibly enough to matter in a settlement negotiation, was that both the change-order approval and the installation choice contributed to the failure. That is a common outcome in crossclaims between two parties who were both, in different ways, careless about the same piece of work, and it meant the realistic range of outcomes was a shared allocation rather than a clean win for either co-defendant.

What we did

1. Separated the crossclaim from the emotional history. We told Kayla directly that the years of friendship and shared jobs with Brandon were not part of the legal analysis, and that trying to relitigate the whole relationship inside the crossclaim would slow down a resolution she needed regardless of how she felt about him personally. Getting her to accept that framing early saved weeks of drafting language aimed at persuading rather than resolving.
2. Pulled every document that touched the renovation. We collected the permit, the original scope of work, every change order, site texts between Kayla and Brandon's crew, and the franchise's internal installation standards, because a crossclaim between co-defendants is won or lost on exactly this kind of paper trail rather than on either side's recollection of who said what months after a stressful loss. Assembling it all in one place before any negotiation began let us see the whole sequence of decisions clearly for the first time.
3. Retained an independent building consultant. Rather than rely on Kayla's own construction background, which the other side could dismiss as self-serving given her industry, we had a third-party consultant assess the failed joint and the change-order sequence, producing an opinion neither side had authored and both could reasonably trust as a starting point for negotiation rather than another contested piece of evidence to fight over.
4. Reviewed Andrei's damage documentation for its effect on the crossclaim. Even though Andrei was not a party to the crossclaim itself, his photographs and the tenant's timeline affected the total exposure both co-defendants faced in the main action, so we factored that evidence into what a realistic allocation needed to cover before opening settlement talks, rather than negotiating a split based on an incomplete picture of what was ultimately at stake.
5. Proposed a without-prejudice allocation conversation before pleadings closed. Rather than let the crossclaim run its full course through examinations for discovery, we opened a direct settlement discussion with Brandon's counsel early, on the basis that a negotiated split served both defendants better than a costly secondary fight layered on top of the main action against Andrei and the corporation. Raising it before pleadings closed kept legal costs from compounding on both sides.
6. Used the consultant's report to anchor a percentage split. The independent opinion apportioned responsibility for the failure between the change-order approval and the installation defect, which gave both sides a neutral reference point to negotiate from instead of arguing from scratch about who remembered the renovation correctly, and it moved the conversation from blame toward a number both counsel could defend to their own clients.
7. Coordinated the crossclaim settlement with counsel in the main action. Because Kayla and Brandon remained jointly named defendants in the larger claim, we made sure any resolution of the crossclaim did not undercut either of their positions, or their insurers' positions, in the ongoing action against the condominium corporation and the affected owners, including Andrei. That coordination meant the internal split would not later be reopened as an issue in the larger case.
8. Kept a written record of every proposal exchanged. Given how quickly the relationship between Kayla and Brandon had soured, we insisted on documenting every offer and counteroffer in writing, so there was no risk of a verbal agreement collapsing the way the original fifty-fifty phone arrangement had within weeks of the leak, and so each side had a clear paper trail if the negotiation ever needed to be explained to a court.

The outcome

Kayla and Brandon settled the crossclaim on a split that allocated responsibility roughly sixty-forty in the direction the independent consultant's report suggested, with Brandon's franchise bearing the larger share tied to the installation defect and Kayla bearing a smaller share tied to the uninspected change order. Neither side got the outcome they had wanted at the outset. Brandon had hoped the change-order approval would clear his crew almost entirely; Kayla had hoped the defective fitting would do the same for her. Both had to accept that the honest reading of the record put real fault on each of them.

The split was not the end of the matter for either of them, since the main action brought by Andrei and the condominium corporation and the other affected owners against both defendants continued on its own track. What the crossclaim settlement did was remove one layer of the dispute, so that Kayla and Brandon could each focus on defending the larger claim without also fighting each other over the same set of facts in front of the same court. Their insurers were able to coordinate a joint defence strategy in the main action once the internal allocation was settled, which neither could do while the crossclaim was open and each side was still privately trying to shift blame onto the other.

That coordination mattered when the main action itself was eventually resolved. With the sixty-forty split already fixed between them, Kayla and Brandon's insurers negotiated jointly with Andrei and the corporation on the repair costs, dividing whatever was ultimately paid according to the same allocation rather than reopening the fault question a second time. That saved a further round of costly argument that would otherwise have restarted the whole dispute at a later stage.

The personal relationship did not fully recover. Kayla and Brandon have not worked together since, and both told us separately that the file changed how they thought about doing informal work for people they knew, particularly the instinct to handle a serious problem with a handshake agreement rather than something written down. What did change for the better was that the underlying claim moved forward on a workable footing, with both defendants pulling in the same direction on the parts of the case they actually agreed on, instead of spending resources fighting each other on top of fighting the plaintiffs.

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