The only thing I would add is that if the CA Assoc. of Realtors Residential Purchase Contract was used, you do have a "mitigation of legal risk" protection via Para 17B2. While Para 17 speaks to the arbitration and mediation of disputes, Para 17B2 limits any potential court action to the jurisdiction (read level of damages sought) of a certain types of legal claims, but specifically in your case, Small Claims Court.
(1) Did not order inspections,
(2) Did not present you with a request for repairs during the time frame allowed by the contract and
(3) Escrow is now closed and you have all the proceeds from the sale â€¦
They should not have any recourse.
Their only course of action at this point would be to prove that you deliberately misrepresented specific facts in your disclosures with regard to your home. IF they can prove that you deliberately misrepresented the condition of your home in the disclosures, they may have a case in small claims court. If not, it is my belief that they can no longer ask you to repair anything.