25 Del. C. § 2608: Lien void if not filed timely [For application of this section, see 79 Del. Laws, c. 18, § 2].

The broker’s lien shall be void and unenforceable if filing does not occur within the time and in the manner required by this chapter. A broker’s lien properly asserted against a seller because the seller was obligated to pay the broker, but not filed until after the deed to the buyer is recorded, shall not be a lien against the property.