Which of the following is a definition of adverse facts?

Adverse facts refer to occurrences or conditions that negatively affect property value. This definition encompasses various aspects such as environmental issues, structural problems, or economic declines that could diminish the marketability or desirability of a property. Identifying adverse facts is crucial in real estate and timeshare transactions, as they influence investors' decisions and potential returns on their investment.

The other options describe concepts that do not align with the definition of adverse facts. Factors that enhance property value would be considered positive, while conditions that could enhance safety standards do not necessarily deal with property value directly. Finally, events that do not impact property at all do not qualify as adverse, as they imply neutrality rather than a negative effect. Understanding adverse facts helps stakeholders make informed decisions and assess risks associated with property investments.