Greylock Advisory Group, Ltd. Return to Directory Business Area Real Estate / Property Tags Real Estate Appraisal, Real Estate Appraiser, Real Estate Appraising, Real Estate Consulting Contact Person Charles W. Parkhurst Biz Phone 540-721-1109 Website http://greylockadvisorygroup.com Street Address 1502 Franklin Rd SW, #102 VA Roanoke United States of America Zip / Pin 24016 Contact listing ownerSend MessagePlease log in to be able to send messages to the listing owner.