Any release or waiver required to be provided by a contractor, subcontractor or supplier to receive a progress payment or retainage payment must be:
1. Conditional for the purpose of receiving payment and shall be deemed to become unconditional upon the receipt of the money due to the contractor, subcontractor or supplier; and
2. Limited to claims related to the invoiced amount of the labor, materials, equipment or supplies that are the subject of the progress bill or retainage bill.