Incumbents County Executive Dave Coulter, Clerk/Register of Deeds Lisa Brown, Sheriff Michael Bouchard and Water Resources Commissioner Jim Nash were each administered their oath of office during the brief ceremony. OAKLAND COUNTY, Mich. – Oakland County’s top elected officials were sworn-in Thursday for the next four years in Oakland County Circuit Court by Chief Judge Shalina D. Kumar. Incumbents County Executive Dave Coulter, Clerk/Register of Deeds Lisa Brown, Sheriff Michael Bouchard and Water Resources Commissioner Jim Nash were each administered their oath of office during a brief ceremony. Newly elected Prosecutor Karen McDonald was present for the event, but a separate ceremony was held for her the same day. Treasurer-elect Robert Wittenberg, who replaces Treasurer Andy Meisner, will take his oath of office in the summer when Meisner’s term expires.