Rule 135. An appraisal firm or an individual doing business in this state and employed to make appraisals for assessment purposes shall employ a project supervisor who is certified at the level required of the assessing unit. The certification level shall be equal to the highest designated certification necessary for the units of government where the firm or individual will be conducting business. This rule shall not apply to an appraiser who is retained to prepare an appraisal for litigation purposes.
Mich. Admin. Code R. 209.135