Question about serving a tenant

[Adam A.]

I've recently started managing my father's rental properties and acting as the property manager on his behalf. This is in New york. I know that a third party is normally used for serving tenants, but would I be able to serve a tenant myself directly? Even though I'm family of the landlord I'm still the acting agent in charge of managing the property. Would this be a hiccup in court and should I just find someone else to serve them?