The parole threshold dates are set by the judge in his Judgment and Commitment Order. If the inmate has already served 80% of their sentence, there were either no parole opportunities offered or they were denied. We know that the states offer 15% good time and if your inmate does indeed have a clean record, he might be within a year of being released to a halfway house. Of course, we are guessing because we do not have the benefit of knowing the entire situation regarding sentencing and stipulations.