How long does an attorney have to review the request for repair list after an inspection?

We are selling our home in Illinois.The buyers sent our attorney their request for repair list. We decided what we would fix.......mostly safety issues GFI's,Gas Leak, Certification of Furnace, remedy Mold in attic and fix the attic fan, It's been 3 business days and we have not had a reponse from the buyers or their attorney. Closing is in 3 weeks. How long can this take?