2014 New York Laws
EXC - Executive
Article 6-E - (160 - 160-BB) STATE CERTIFIED AND LICENSED REAL ESTATE APPRAISERS
160-Y - Contingent fees.

 160-y. Contingent fees. 1. A state certified or licensed real estate
  appraiser may not accept a fee for an appraisal assignment as defined in
  section one hundred sixty-x of this article, that is contingent upon the
  appraiser reporting a predetermined estimate, analysis, or opinion or is
  contingent  upon  the  opinion, conclusion or valuation reached, or upon
  the consequences resulting from the appraisal assignment.
2. A state certified or licensed real estate appraiser who enters into
  an agreement to perform specialized services, as defined in section  one
  hundred  sixty-x  of this article, may be paid a fixed fee or a fee that
  is contingent on the results achieved by the specialized services.
3. If a state certified or licensed real estate appraiser enters  into
  an  agreement to perform specialized services for a contingent fee, this
  fact shall be clearly stated in each written  report.  In  each  written
  report,  this  fact  shall  be clearly stated in a prominent location in
  such  report  and  also  in  each  letter  of  transmittal  and  in  the
  certification  or authentication of the statements made by the appraiser
  in such a report.