Section 12. Action or proceeding by unincorporated association

An action
  or special proceeding may be maintained, by the president  or  treasurer
  of  an  unincorporated  association to recover any property, or upon any
  cause of action, for or upon which all the associates may maintain  such
  an  action  or  special  proceeding,  by  reason  of  their  interest or
  ownership therein, either jointly or in common.  An action may  likewise
  be maintained by such president or treasurer to recover from one or more
  members  of  such  association  his  or their proportionate share of any
  moneys lawfully expended by such association for  the  benefit  of  such
  associates,  or  to enforce any lawful claim of such association against
  such member or members.