Final answer:
An appraiser should exclude the value of a building with no value from their appraisal and focus on assessing the value of the land.
Step-by-step explanation:
When presented with a property on which there is a building of no value, an appraiser should exclude the value of the building from their appraisal. The appraiser should focus on assessing the value of the land itself, as the building does not contribute to property value.
For example, if the building is dilapidated, damaged beyond repair, or not usable for any purpose, it can be considered as having no value in the appraisal.
However, if there are salvageable materials or if the building could potentially be renovated or repurposed in the future, the appraiser may consider them in their appraisal, even if the building currently has no value.