Md. Code, Courts and Judicial Proceedings § 11–502

(a) A sheriff shall give notice of the time, place, and terms of the sale of any property under execution before the property can be sold.

(b) In the case of a sale of an interest in property, the notice shall be posted on the courthouse door or on a bulletin board in the immediate vicinity of the door of the courthouse and printed in a newspaper, published in the county where the property is located at least:

(1) Ten days before the sale of personal property; or

(2) 20 days before the sale of real property.

(c) If the sheriff gives notice by publication in a newspaper, he may recover the costs of publication from the defendant. If the defendant is unable to pay the costs, the sheriff may recover the costs of publication from the plaintiff.

(d) A sheriff’s sale of real property extinguishes any subordinate lien or interest on the land subject to the sale.