Executive Summary: Key Legal and Evidentiary Issues

• Buyers Michel Rivest and Yanie Desforges sued seller Chantal Poitras for latent defects after discovering foundation cracks and significant water infiltration in the triplex they purchased in February 2021.
• Central to the dispute was whether the foundation defects qualified as latent (hidden) defects under Article 1726 of the Civil Code of Québec.
• Failure to prove the antecedence of the cracks — that they existed before the sale — was a critical evidentiary gap in the buyers' case.
• The buyers' own conduct undermined their claim: the buyer visited the property only once, asked no follow-up questions about disclosed water incidents, and did not conduct an independent pre-purchase inspection.
• False representations by the seller were also alleged but could not be established, as the evidence did not show the seller had knowledge of the 2019 water damage.
• Both the main claim and the seller's counterclaim were dismissed, with the buyers ordered to pay court costs of $207.

Facts of the case

In February 2021, Michel Rivest and Yanie Desforges purchased a three-unit rental property from Chantal Poitras. The building, constructed in 1946, was not occupied by either party at the time of sale. The seller's declaration disclosed a 2017 sewer backflow that had required floor replacement and a minor water infiltration in a corner of the basement, which the seller indicated had been patched by sealing exterior holes. Relying on a pre-purchase inspection report provided by the seller — which had been obtained by other prospective buyers — the buyers chose not to commission their own inspection. Rivest conducted only one visit to the property on December 13, 2020, during which he did not question the basement tenant about the condition of the unit. About one year after the purchase, on February 17, 2022, the basement tenant alerted Rivest that the basement was flooded, with up to three inches of water on the floor. On March 7, 2022, the buyers retained Fissure Fix-Sûre inc. to repair cracks in the foundation. The buyers' insurer subsequently paid $11,198.94 for damages. On November 30, 2022, the buyers served a formal demand letter on Poitras claiming $14,210.40, representing their total damages less amounts already paid by the insurer and by the seller. Poitras had previously paid the buyers $3,000, a sum she sought to recover through a counterclaim.

Legal framework: latent defect guarantee

The buyers' claim rested on the seller's warranty against latent defects under Article 1726 of the Civil Code of Québec, which obligates a seller to guarantee that the property sold is free of hidden defects. The court applied the four conditions required to establish a latent defect: the defect must be serious enough that the buyer would not have purchased the property or paid as much had it been known; it must have been unknown to the buyer at the time of sale; it must not have been apparent or discoverable by a prudent and diligent buyer without expert assistance; and it must have pre-existed the sale, even if its effects manifested only afterward. A fifth requirement under Article 1739 of the Civil Code is timely notification of the defect to the seller.

Court's reasoning and analysis

The court found that the buyers failed to satisfy the "hidden" element of a latent defect, primarily because Rivest did not act as a prudent and diligent buyer. The seller's declaration had expressly mentioned both the 2017 sewer backflow and a "slight water infiltration" that had been patched — disclosures that, in the court's view, warranted further inquiry. Despite working in the construction industry and thus being more experienced than an ordinary buyer, Rivest asked no follow-up questions about either incident, did not inquire about the basement tenant's experience with the unit, and did not produce the inspection report he claimed had reassured him. The court also found that the antecedence of the cracks had not been established on a balance of probabilities. The flooding was discovered a full year after purchase, after the property had already experienced freeze-thaw cycles without incident. The only expert-type document submitted — a letter from Fissure Fix-Sûre technician Louis Boulianne — was neither dated nor signed and was silent on when the cracks had appeared. The court noted that blackened wood observed under the flooring was equally attributable to the 2017 sewer backflow or the 2019 water damage, and did not establish that the foundation cracks predated the sale.

On the alternative claim of false representations, the court found the evidence equally insufficient. The basement tenant testified about a water damage event in January 2019 but the evidence did not establish that the seller had knowledge of that event. A written declaration from prior tenants described a water damage incident but did not identify its cause, making it impossible to determine whether it should have been disclosed or whether any misrepresentation had been made. The court further noted that the $3,000 payment by the seller could not be treated as an admission of liability, and that the demand letter's reference to an alleged agreement to cover uninsured amounts did not, on its own, prove such an agreement existed.

Ruling and overall outcome

The court dismissed both the buyers' main claim and the seller's counterclaim. As the buyers' claim failed entirely, the court did not address the quantum of their claimed damages. The defendant, Chantal Poitras, was the successful party. The buyers, Michel Rivest and Yanie Desforges, were ordered to pay court costs of $207 to the defendant.