Mitigation Matters: Documentation is key for Dental Employer Case

By January 28, 2025August 7th, 2025Employment Law

Letting an employee go is never easy, but the challenges don’t stop there. In wrongful dismissal cases, the employees often claim they weren’t given proper notice, and employers are left defending their decisions. Consequently, the court must determine the appropriate notice or pay in lieu of notice, and employers have the opportunity to reduce damages by proving the employee failed to mitigate their losses.

The 2023 case of Gracias v. Dr. David Walt Dentistry highlights how courts assess mitigation efforts and how dental employers can (or cannot) challenge them effectively. It offers valuable lessons for dentists and practice owners and can help you prepare for potential termination disputes.

Background

In this case, Sonia Gracias, a part-time hygienist for Dr. David Walt and Dr. David Walt Dentistry Professional Corporation, was fired without cause and provided with one week’s pay in lieu of notice. Ms. Gracias found a new (non-dental) job seven months later but continued looking for alternative employment, keeping a job search log of her efforts.

During this time, she filed a wrongful dismissal lawsuit against Dr. Walt’s office, claiming she was entitled to common law reasonable notice rather than the minimum standards under the Employment Standards Act, 2000 (the “ESA”). In response, Dr. Walt argued that Ms. Gracias had failed to mitigate her losses and, therefore, her claim should be dismissed for lack of damages.

The dentist further challenged the former employee’s mitigation efforts by hiring a digital forensic specialist to investigate the legitimacy of her emails from job-hunting sites. Dr. Walt even followed up with dental offices that Ms. Gracias claimed to have contacted. Many of these offices denied receiving her applications. Based on the expert’s report and supporting statements from the other dental office owners, Dr. Walt claimed that the plaintiff had made up fake job-seeking evidence to support her position in the case.

The Issues

  • Did the employee take reasonable steps to mitigate her damages by seeking comparable employment?
  • Could the employer prove the employee failed to mitigate her damages using forensic analysis and third-party testimony?

The Decision

The court ruled in favour of the employee despite uncovering suspicious inconsistencies, such as questionable email records and the affidavits denying receipt of applications. The Court found that the expert’s evidence was too weak to prove actual tampering and that there was no apparent motive for the plaintiff to fabricate evidence. Instead, the Court concluded that the more plausible explanation was that her emails were misdirected by mistake rather than deliberate fraud.

When the employer appealed the Court’s decision, the Divisional Court upheld the original decision and ordered the employer to pay an extra $15,000 in costs.

Bottom Line

This case underscores the importance of proper documentation in wrongful dismissal cases. Employers must provide clear, objective evidence to successfully challenge an employee’s mitigation efforts. Courts require reasonable—not exhaustive—proof that an employee failed to mitigate damages. Employers should take proactive steps to prevent costly legal disputes. Learn more about mitigation and strategies to protect your practice here.

Need help navigating employment disputes? At DMC, we specialize in dental law and provide tailored legal strategies to protect you and your practice. Send us an email or call our employment lawyers at 416-443-9280 for help handling the complexities of being an employer.

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