In the law firmsBenesch Friedlander Coplan & Aronoff LLC added Di Fu and Kathryn E. Clausing as associates and Christopher J. Letkewicz and Christopher J. Roman as of counsel.Fu, who joins the international private client group, will focus on working with the firm’s international clients on U.S. tax planning matters.Clausing, who joins the litigation practice group, focuses her practice on complex commercial litigation matters in federal and state courts across the country.Roman joins the business succession …