Fees Appraisal fees are based on an hourly rate of $175. A retainer of one half the estimated total cost of an appraisal is required before any work is begun. Some consultations and verbal opinions can be performed for $150. You should call Randolph Osman to determine the type of appraisal or consultation you need, and to make arrangements for payment. Payments can be made on line using PayPal (a secure system) set up for credit card payments. (Click on the PayPal logo below) Payments can also be made by check or by direct deposit. Call for details. phone - (503) 787-3301 Randolph E. Osman, MA, ASA Art Historian / Accredited Senior Appraiser P.O. Box one (mail) Falls City, OR 97344 USA (503) 787-3301 phone randolph@osmanart.org