Residential Appraiser Site Valuation and Cost Approach (R-8) COURSE DESCRIPTION This 15-hour course is part of the Residential Appraisal Certification series. These courses must be taken in sequence. It is part of the NYS Appraisal Licensure Certification Requirement. PREREQUISITES Effective immediately, courses may be taken in any sequential order. COURSE OUTLINE Program Overview - The following topics will be covered: Site Valuation Cost Approach