Md. Code Ann., Real Prop. § 9-110
No person having the right to establish a mechanics' lien waives the right by granting a credit, or receiving a note or other security, unless it is received as payment or the lien right is expressly waived.
Added by Acts 1976, c. 349, § 3, eff. May 4, 1976.
Formerly Art. 21, § 9-108.