Which of the following should be acquired prior to the visual assessment of a property?

Acquiring information about past incidents of elevated blood lead (EBL) levels in children is crucial prior to visually assessing a property. This historical data provides insight into potential lead hazards that may exist within the property. If there have been previous cases of lead exposure linked to the property, it indicates a higher likelihood that lead paint or other lead sources may still be present. Understanding this context helps the assessor proactively identify areas that may require closer inspection or remediation during the visual assessment.

In contrast, the other options do not provide essential background information relevant to the lead risk assessment process. Current tenants’ medical records relate to individual health privacy and may not indicate the overall condition of the property. Recent tenant complaints might focus on a variety of issues unrelated to lead hazards. Future property sales information, while important for real estate considerations, does not inform the immediate assessment of lead hazards in the property. Thus, focusing on the history of EBL cases directly ties to the safety and health evaluations needed in lead risk assessments.