... instructed to do so in writ-ing by Contractor. At the time Contractor notifies Subcontractor to un -dertake such activities, Contractor will notify Subcontractor in writing the total amount ... receipt requested addressed to the party to whom intend-ed at the following address:a. If to Contractor:(Contractor name and mailing address)b. If to Subcontractor: 19. The validity, instruction ... endure to the benefit of the parties hereto and their respective heirs, executors, administrators,per sonal representatives, successors and assigns. THE PARTIES HERETO ACKNOWLEDGE THAT THEY HAVEREAD...