Greylock Advisory Group, Ltd. 4 years ago ID: #265818 Listed In : Real Estate 1502 Franklin Rd SW, #102, Roanoke, VA 24016, USA 540-721-1109 greylockadvisorygroup.com Business Description Real Estate Appraising in Roanoke, VA Reviews & Ratings Write a Review No Review. Please login / register to add your review. Tags : Real Estate Appraisal Real Estate Appraiser Real Estate Appraising Real Estate Consulting Commercial Real Estate Appraisals