Complex sentence: Mercer County constitutes Vicinage 7 of the Superior Court of New Jersey and is located in Trenton, the county seat; and the Assignment Judge for Mercer County is Mary C. Jacobson.
Split into simpler sentences: Mercer County constitutes Vicinage 7 of the Superior Court of New Jersey. The vicinage courthouses are located in Trenton, the county seat, and the Assignment Judge for Mercer County is Mary C. Jacobson.