N.Y.C. Admin. Code § 28-205.1.1.2: § 28-205.1.1.2 In rem jurisdiction over the building.

In rem jurisdiction over the building, structure, or premises where the violation shall exist shall be complete by affixing the summons to the door of the building, structure, or premises and by mailing the summons by certified or registered mail, return receipt requested, to one of the owners of some part of or interest in the building, structure, or premises. Proof of service shall be filed within two days thereafter with the clerk of the court designated in the summons. Service shall be complete upon such filing.