Can a subcontractor put a lien on a house the owner paid in full?

Work it through

You're the contractor. Pick what you'd do, then see how each choice plays out.

1. AYes, under Maryland lien law, subcontractors and suppliers CAN file liens even if the homeowner has paid the general contractor in full. This is why it's important to get lien releases from subs as you make payments
   Correct

   Maryland mechanics lien law allows subcontractors and material suppliers to file liens against the property if they haven't been paid, regardless of whether the homeowner paid the general contractor. This is why COMAR 09.08.01.12 requires the prime contractor to pay subs. Best practice: obtain lien waivers/releases from each subcontractor as you pay them, and provide copies to the homeowner. This transparency protects everyone.

2. BNo — if they paid you, they're protected. Subcontractors can only go after you, not the property
   Wrong

   This is a dangerous misconception. Maryland law allows subcontractors and suppliers to file mechanics liens against the property, not just against the general contractor. A homeowner who pays the contractor in full can STILL have a lien placed on their home by an unpaid sub. This is one of the most important consumer protection issues in home improvement law, and giving incorrect information about it exposes both you and the homeowner to serious risk.