Delaware Code Title 25. Property § 2707. Payment of contractor by owner of residence as a defense;  certification of payment for labor and materials or release of liens by contractor

No lien shall be obtained under this chapter upon the lands, structure, or both, of any owner which is used solely as a residence of said owner when the owner has made either full or final payment to the contractor, in good faith, with whom the owner contracted for the construction, erection, building, improvement, alteration or repair thereof.  Prior to or simultaneous with the receipt of any full or final payment by the contractor, the contractor must provide the owner either:

 Failure of the contractor to provide the owner a written certification or a release of mechanics' liens at such time shall constitute sufficient cause for the immediate suspension, revocation or cancellation of the contractor's occupational and business licenses.  If the owner has not made full payment in good faith to such contractor, the lien may be obtained in accordance with this chapter, but it shall be a lien only to the extent of the balance of the payment due such contractor, which balance or portion shall be payable pro rata among the claimants who perfect liens.  Payments made to the contractor by the owner after service of process, as provided in § 2715 of this title, shall not be deemed to be “in good faith.”