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Jonckheere v. Slegers

Executive Summary: Key Legal and Evidentiary Issues

  • Allegation of conflict of interest based on past contact with opposing counsel was unsupported by sufficient evidence.

  • Court found no solicitor-client relationship ever existed between the respondent and the applicant’s counsel.

  • Claims of confidential information being shared were vague, unsubstantiated, and ultimately dismissed.

  • Settlement offers were evaluated against Rule 24 criteria for cost consequences in family law proceedings.

  • Applicant’s legal costs were scrutinized for reasonableness and proportionality, with some reductions applied.

  • The respondent was ordered to pay $57,000 in costs due to the weakness of her claim and litigation conduct.

 


 

Background and facts

The respondent, Irene Slegers, brought a motion to disqualify the applicant Hans Jonckheere’s legal counsel, Lerners LLP, alleging a conflict of interest. She claimed that she had previously conveyed confidential information to two of the firm’s lawyers, Ms. Dale and Mr. Lerner, and therefore Lerners should be prohibited from representing Hans in the ongoing family law proceedings. Irene asserted that this past interaction, particularly through her mother's estate planning and a prior lawsuit, created a solicitor-client relationship or at least a situation where confidential information might have been disclosed.

The motion required the court to assess whether such a relationship had existed, whether any confidential information had been imparted, and whether Hans’s counsel should be disqualified. Justice T. Price, sitting in chambers and deciding the matter on written materials, found that Irene had not been a client of Lerners, nor had she provided any confidential information that could create a conflict.

Procedural history and motion outcome

The motion to disqualify Lerners LLP was dismissed. Justice Price held that Irene’s evidence did not establish a lawyer-client relationship with either Ms. Dale or Mr. Lerner. He also found that her allegations evolved during the course of the motion in a way that suggested strategic motives rather than genuine concern about confidentiality. In particular, her last-minute claim about being a former client of Mr. Lerner—raised only in reply materials—was seen as an effort to bolster a failing argument.

Hans had incurred significant legal costs defending the motion, using both Lerners and an independent firm (Henein Hutchison Robitaille) due to the nature of the conflict claim. The costs submissions became the subject of the court’s ruling in this decision.

Costs determination and legal reasoning

Justice Price applied Rule 24 of Ontario’s Family Law Rules, which presumes that the successful party is entitled to costs. He found Hans to be the successful party, and none of the exceptions to the presumptive entitlement to costs applied. The court also analyzed the parties' offers to settle. Irene’s offer, which proposed dropping her motion if Hans paid her costs, was characterized as illogical and tactically motivated, especially given that she expanded her claims afterward.

The court reviewed in detail the hours billed, rates charged, and the reasonableness of the legal work performed. While some reductions were applied for duplicative or excessive billing, the overall time and cost were deemed largely justified. The decision emphasized proportionality, fairness, and the importance of discouraging baseless motions that escalate costs unnecessarily.

Justice Price concluded that Irene’s conduct—bringing the motion on thin grounds, failing to withdraw it when her claims weakened, and attempting to leverage the motion for financial gain—justified a substantial cost award. She was ordered to pay $57,000 in all-inclusive costs to Hans, split between the two firms who defended the motion.

Conclusion

This decision reinforces the court’s expectation that litigants act reasonably and avoid strategic misuse of motions for tactical advantage. Where a party brings an unfounded motion, especially one that interferes with the opposing party’s choice of counsel, the cost consequences can be significant. The ruling also affirms the principles of reasonableness and proportionality in evaluating legal fees, even when senior counsel is retained at high hourly rates.

Hans Charles Jonckheere
Law Firm / Organization
Henein Hutchison Robitaille LLP
Lawyer(s)

Shaun Laubman

Irene Theodora Maria Slegers
Law Firm / Organization
Brown Beattie O'Donovan LLP
Lawyer(s)

Iain D. Sneddon

Superior Court of Justice - Ontario
FC486/23
Civil litigation
Not specified/Unspecified
Applicant