Md. Code, Tax - Property § 8–106

(a) In this section, “cooperative housing corporation”, “cooperative interest”, “membership certificate”, and “proprietary lease” have the meanings provided under the Maryland Cooperative Housing Corporation Act.

(b) The value of a cooperative interest, a proprietary lease, a membership certificate, or similar items relating to an interest in a cooperative unit may be considered in determining the value of real property owned by a cooperative housing corporation or similar corporation.