Seamlessly file a case online with AAA using an online demand form, an arbitration agreement and the filing fee. How do I file an Arbitration "AR" case?Find out how cases are assigned to the Arbitration calendar and what eligibility requirements are involved. The Law Division Mandatory Arbitration program is an alternative dispute resolution process for civil suits seeking money damages. An APPEARANCE is a form that you file to tell the court and the other parties that you are participating in the case. ➢ Even though you are representing yourself, you MUST fill out this section. a. Type in 99500 in the Case Cross Reference Number box. b. How do I file an Arbitration ("AR") case? LaSalle Street, Chicago, Illinois. b. Followed in a nonarbitration case.