Since 2005 William Ran, O.R Valuation Services , INC. has worked full time in the appraisal business and brings a wealth of experience to the table. Residential Property Appraisal turnaround can be expected to be 2-5 days under normal circumstances. Mr. William has appraisal experience in numerous types of real estate including multi-family residential, townhouses, condominiums, condominium conversions, and single-family residences. He has given testimony as expert witness in real property valuations.