N.Y. Gen. Bus. Law § 89-ee

§ 89-ee. Responsibility of process serving agency and process servers.\n1. It shall be unlawful for a process server to fail to comply with all\nlegal requirements for the service of process.\n 2. A process serving agency shall be legally responsible for the acts\nof each process server to whom it has distributed, assigned or delivered\nprocess for service if it could reasonably have known that the process\nserver was acting improperly.\n 3. It shall be unlawful for a process serving agency or a process\nserver to fail to comply with all laws and regulations respecting\npreparation, notarization and filing of affidavits of service of process\nand other documents.\n