Moral, legal or contractual obligation that is characterized by not deceiving and abusing someone's good faith. This obligation includes, in particular, the obligation not to appropriate the property of others. Article 322 of the Civil Code of Quebec requires the administrator of a legal person (e.g. a syndicate of co-owners) to be honest. An administrator cannot thus confuse the assets of the syndicate with his own.
Article 1726 paragraph 1 of the Civil Code of Quebec, provides that " The seller is bound to warrant the buyer that the property and its accessories are, at the time of the sale, free of latent defects which render it unfit for the use for which it was intended or which so diminish its usefulness that the buyer would not have bought it or paid so high a price if he had been aware of them. In other words, the latent defect prevents the buyer from enjoying, as he was entitled to expect, the property sold and its accessories. However, the purchase cannot be done blindly, as the buyer must exercise caution and diligence in the purchase process. Thus, a defect that was denounced by the seller at the time of the sale is not covered by the legal guarantee since the buyer then acquired the property knowingly. A buyer must therefore be particularly attentive to the representations and declarations of a seller, as well as to the documentation given by the latter before the sale