Governor Jon Corzine is expected to decide within the next week who he will appoint to fill the seat of the late Burlington County Surrogate Elton Conda. Vacant Surrogate posts are filled by gubernatorial appointment, with the advice and consent of the State Senate. Some Burlington Democratic leaders want Corzine to nominate the Republican candidate, Vincent Farias. To take the job, Farias would have to resign from the Board of Freeholders — that would result in three of the five Freeholder seats being up for election this year. Republicans prefer a caretaker.