Not typically. The laws vary from state to state, and some do require disclosure of violent deaths on the property, but this isn’t quite what you’re asking. In many states, all you’re legally required to disclose about a house are “material facts,†which are mostly structural issues that can affect the house’s value, like a leaky roof.However, there are some legal precedents of people successfully making the case that a reputation for ghostly encounters can lower property values—stigmatized properties, like scenes of violent crime, can see a decrease in value by as much as 25 percent.Many experts recommend disclosing a potential haunting even though it’s not strictly required—it could help avoid a lawsuit later.