Md. Code, State Government § 9–2608

(a) Except as provided in subsection (b) of this section, the Corporation is not required to pay taxes or assessments on its:

(1) properties;

(2) activities; or

(3) revenue derived from its properties or activities.

(b) If the Corporation sells or leases land or facilities to a private entity, the land or facilities shall be subject to real property taxes.