§ 11-4.4 Commencement  of  action against personal representatives; rule when some of representatives not served Where an action  or  proceeding  is  commenced  against  two  or  more  personal representatives in their representative capacities,  jurisdiction of all is obtained by service of process upon  any  one  of  them  and  any  judgment  recovered  may be entered and execution issued  thereon against all of them, in their representative capacities,  as  if  all had been served.