Upton Law Firm congratulates founding attorney C.B. Upton for achieving an AV-preeminent rating nce again this year. The AV-preeminent rating is the highest designation given to an attorney by Martindale-Hubbell—the leading attorney rating organization in the U.S. The distinction indicates that a lawyer’s peers rank him at the highest level of professional ethics and legal ability. Attorney Upton has been rated AV-preeminent every year since 2011.