Can an illegal F-1 student switch to H-4 visa?

You cannot change status if you are not in status, however he could consular process for an H4.

Open LLC and get H1 visa

If the job is real, and he can pay your required salary, and you are qualified for the job and for the visa, then yes.

I am a immigrant and have a dui in 2011. My wife is sponsoring for my greencard and after that dui , i never got in no trouble.

Generally one, simple DUI will not prevent you from adjusting.

If you have proof you gave the right address there is a chance USCIS will reopen. Otherwise, if you refile, generally you cannot recapture the old...

How important are affidavits from my spouse's family for a request from Immigration to proceed with Adjustment of Status?

The totality of evidence must be sufficient to convince a normal person that your marriage is entered in good faith.

I got cr-1 visa and my wife was living in Oregon now she moved to virginia , and on the paperwork they have old address in orego

Yes, if you do not want your card lost in the mail.

Conditional residency Vs living temporary apart with US citizen spouse

No, working in a different state for a brief time will not affect your residency. Yes, the application for removal of condition asks you to...

Reported to immigration

If you made a false statement at the port of entry or consulate, they may have this information at USCIS.

-- in 2009 I did an immigration petition for my wife who I am divorcing could I marry an petition for another woman in 2014

You can try, and you should be aware there will be a presumption of fraud which you must rebut.

Should I put my wife and kids name on the Affidavit of Support form, even though I was the one filed for by my Mother?

If only you are immigrating, but not your spouse and children, then you do not need to include them on the form. Since your mother is filing...