(1) The lien given in this subchapter shall be transferable and assignable, but it shall not be enforced against the owner of the ground or buildings unless the owner of the ground or buildings shall have actual notice of the assignment or notice under subsection (b) of this section.
(2) The owner of the ground or buildings shall be considered to have actual notice if within thirty (30) days of the assignment a copy of the assignment is: Hand delivered to the owner of the ground or buildings;
(3) Mailed to the last known address of the owner of the ground or buildings and verified by a: Return receipt signed by the addressee or the agent of the addressee; or
(4) Returned envelope, postal document, or affidavit by a postal employee reciting or showing refusal of the notice by the addressee or that the item was unclaimed; or
(5) Delivered by any means that provides written, third-party verification of delivery at any place that the owner of the ground or buildings maintains an office, conducts business, or resides.