Amy, Maxine and Lauren have trouble adjusting to their new living arrangements; Vincent returns for a visit to smooth over the waters between his mother and sister and persuade them to live together again; after Lauren tearfully calls Michael about the move, he suggests to Amy that Lauren come to live with him; Amy presides over a custody dispute involving a father who refuses to take a paternity test; Donna dates one of Amy's law school classmates; Amy ends her relationship with Barry.