13313. Multiple Respondents
(a) One or more parties may name one or more respondents in the same arbitration if the claims contain any questions of law or fact common to all respondents and:
• The claims are asserted against the respondents jointly and severally; or
• The claims arise out of the same transaction or occurrence, or series of transactions or occurrences.
(b) After all responsive pleadings have been served, claims joined together unde