Active promotion by a seller of a unique characteristic, including stigma attached to a property, can lead to an obligation to disclose such information to potential buyers. Failure to do so can impact contract enforcement, possibly leading to contract rescission or damages if it materially affects property value or desirability.
For example: Suppose a homeowner markets their property as having been owned by a celebrity which significantly increases its market value. If this claim is false and they fail to disclose this prior to sale, it might constitute grounds for rescission given that the misinformation was used to enhance the property’s appeal.