(a) In this subtitle the following words have the meanings indicated.
(b) “Employer” includes a person who acts directly or indirectly in the interest of another employer with an employee.
(c) “Lien for unpaid wages” means a lien for the amount of wages owed to an employee and penalties authorized under this title or other provisions of law against real or personal property owned by an employer and located in the State.
(d) “Wages” does not include commissions.