Any lien to which a person or corporation furnishing materials, supplies, equipment, and services to a contractor or subcontractor would otherwise be entitled under Title 5 or Title 44 of the South Dakota Codified Laws or by virtue of the common law of this state may be waived to the extent provided in this chapter by such person or corporation by the endorsement of a joint check wherein the payees include the contractor or subcontractor and the person or corporation furnishing materials, supplies, equipment, and services and by the execution of a separate agreement of waiver between the maker of the joint check and such person or corporation.
SDCL 44-9A-2