A suit for partition is where one owner of a parcel sues the other owner to divide the property. If the Court finds that it is unable to enforce the agreement, then you may have to file a new lawsuit for Breach of Contract.You have to file the Complaint in the Superior Court of California for the County where the Property is located. Partition Addendum (840P) A fill-in-the-blanks RJI Partition Addendum. Uncontested Matrimonial RJI (UD-13) A fill-in-the-blanks Uncontested Matrimonial RJI. You must complete a Notice of Settlement (CM-200) and file the form with the court to make your notification.