Divorce rules are governed by both fault and no-fault grounds. Couples can file for divorce based on irretrievable breakdown of the marriage (no-fault) or on specific grounds like adultery, cruelty, or abandonment (fault-based). New York State Divorce Rules The process involves filing a Summons and Complaint, financial disclosure, and negotiations or trial for issues like child custody, support, and property division. A final judgment concludes the proceedings, detailing the terms of the divorce settlement.