Adjustment of Status - I-485

I am a USC married to a man from ghana in 2019. we filed for I-130, I-485 etc and after some months of submitting his paper-works to USCIS, he eventually got his EAD and starts working. This guy support me in everything that requires finances (including my bills and rents), help with my crippled daughter and I was diagnosed with type-2 diabetes which makes my health to get worse everyday. we got notice for his AOS interview in Chicago local office and after few month of waiting we got reply that my husband need to authenticate the divorce certificate he presented from ghana (NOID). At this point my husband opens up to me that the divorce cert was *** that he is never married back home and that the son he told me he had was a lie too. he told me this was the lie he presented in ghana to get visa to come here.

Now my major concern now is he presented this same *** certificate in the court to get married to me and the *** son's name he claimed is on our marriage license. Now he is ready to tell the USCIS the whole truth and not cover more lies.

My readers, what should we do ? what are the implications of this on his chance of getting his green-card? Are we still legally married if we inform the court house? because without this my husband, myself and my daughter we're doomed.

Every reply and contributions will be appreciated.