Definition - What does Assessor mean?
An assessor is an official whose role is to evaluate property in order to assign a value to it. Valuations of property are needed for taxation purposes and also for business reasons. Legally speaking, the values that an assessor gives can determine how much a person will have to pay in taxes for his or her property.
Justipedia explains Assessor
The value of property is important because it allows both the government and the individual to know how much the piece of property in question is worth. Values of property, particularly real property such as homes, can fluctuate greatly due to market circumstances. So assessors have to be informed about market circumstances as well as about property information. There are many different types of homes and structures, so assessors have to have a broad-scale knowledge about this field in order to do their jobs properly.