(4-1) A requirement that every prime contract for construction, installation, alteration, repair of, or addition to, the redevelopment project, where the estimated cost shall exceed $10,000.00, shall contain a provision obligating the prime contractor to the prompt payment of all material furnished, labor supplied or performed, rental for equipment employed, and services rendered by public utilities in or in connection with the prosecution of the work, whether or not, the said material, labor, equipment and services enter into and become component parts of the work or improvement contemplated. Such provision shall be deemed to be included for the benefit of every person, co-partnership, association or corporation, who as subcontractor, or otherwise, has furnished material, supplied or performed labor, rented equipment, or supplied services in or in connection with the prosecution of the work as aforesaid, and the inclusion thereof in any contract shall preclude the filing by any such person, co-partnership, association or corporation of any mechanics' lien claim for such material, labor or rental of equipment, and further requiring that the redeveloper shall provide to the Authority evidence of financial security for the prompt payment by the prime contractor for materials, supplies, labor, services and equipment. Such financial security shall equal 100% of the contract amount, shall be in such form as the Authority may prescribe and may include, but not be limited to, any one or a combination of the following:
(5-1) For all projects in which the estimated construction costs exceed $1,000,000.00, a requirement that the redeveloper shall provide to the Authority, and shall cause each prime contractor to provide or submit to, a project cost certification performed by one or more independent, third-party certified public accountants establishing the actual total construction costs incurred and paid by the redeveloper and each prime contractor in connection with the redevelopment project. The receipt of the construction cost certification shall be a condition for receiving a certificate of completion;
35 P.S. § 1711