assessor

Short definition from Wiktionary

Noun

1. 1
   One who assesses a property for tax or insurance evaluation.
2. 2
   A specialist who assists the court in determining a matter.
3. 3
   A civil servant entrusted with checking the veracity of data and criteria used by a taxpayer to complete a tax return.
4. 4
   One who assesses a project for cost evaluation.
5. 5
   An official responsible for student welfare.