(a) By Whom Served. The order to show cause issuing pursuant to R. 4:67 may be served by any person 18 or more years of age.
(b) Non-resident or Unknown Parties. If a defendant resides outside this State or if the plaintiff does not know defendant's residence address, notice shall be given to defendant by publication once in a newspaper published or of general circulation in the county or counties in which the land or property to be taken is located and by mailing to defendant's last knownaddress a copy of the notice at least 10 days before the return date of the order to show cause. If the name of a defendant is unknown the published notice shall be addressed to "Unknown Owner" or "Unknown Claimant".
(c) Service of Declaration of Taking. Service of a declaration of taking shall be made with or after the service of process.
