From Edward Seglias and Jackson S. Nichols of Cohen Seglias Pallas Greenhall & Furman PC :

Effective October 1, 2018, general contractors with projects in Maryland will have a new headache to deal with. That’s when Maryland’s new law, the General Contractor Liability for Unpaid Wages Act, will go into effect. Under the Act, GCs will be jointly and severally liable for the failure of any subcontractors on the GC’s project to comply with Maryland’s existing wage and hour law. GCs will have to ensure that all of their subcontractors (including any sub-subcontractors or other firms they hire) pay their employees in accordance with Maryland law.