The defendant gave receipts copy when i paid him in advance but those copies has the defendant address and home improvement license number stamp. How do I verified is that license is valid ? And he also mentioned he was insurance for 2 millions dollars. I asked him to give me the insurance number to called and tried to solve this situation and he told me he wasn't allowed to give me the insurance number information. So my guess is that he doesn't have any insurance.
Typically, where a contract requires that insurance be provided by a contractor, a certificate of insurance is issued by the insurance broker. Refusal or failure to provide a certificate is a red flag.
Personal Injury Lawyer
I agree that the refusal to provide you with information for you to independently verify sounds fishy to me.