New York Laws
Part 4 - Procedural Aspects of Actions by or Against Personal Representatives
11-4.4 - Commencement of Action Against Personal Representatives; Rule When Some of Representatives Not Served


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.