Several major GOP power brokers with ties to convicted former Orange County Sheriff Michael S. Carona are about to lose their concealed weapons permits under an order by the new sheriff. Those who have received notices of revocation from Sheriff Sandra Hutchens include Michael Schroeder, chief political and legal advisor to Carona and a former chairman of the state Republican Party; Adam Probolsky, a GOP pollster; and Stephen Mensinger, a political ally of Carona and business executive for major GOP benefactor and developer George Argyros, public records show.