Can I still get H1B stamp after marring a US Green Card holder?

Do you have an attorney that helped you with the H-1B? What did they say? They probably explained that the H-1B is a dual intent visa. We don't...

How can my husband prove that he did not cross into America more then once?

You can appeal as you said, you can also do a FOIA requests with ICE and other agencies to see what information USCIS has.

You may be able to enter, depends on how quickly you travel after notifying the school. Its very possible they will cancel your documents and...

Would it be a problem if I have a pending U Visa Application but I file a separate Adjustment of status app based on marrige?

You can schedule an info pass appointment and ask about the delay. It seems like they are finding the other file and reconciling them. You will...

How to make check for application N-400 and Bio-metrics ?

Either way works regarding the amount, make sure you follow the instructions regarding who to make it out to, where to mail, etc.

Will my LPR husband be denied re entry to the US at the airport since he has been out of the US for 1 yr 6 months?

Its very possible he will be denied entry. Before you do anything, schedule a consultation with an attorney confidentially.

Filling out an I-129f form.

either none or N/A works. if you leave it blank it usually doesn't generate an RFE unless its something relevant to the application/petition,...

H1B self sponsoring?

Yes, an H-1B could work with an MBA and some knowledge of restaurant industry , I assume you looked into the E2 and your nationality is not from a...

Applying for naturalization with a criminal history?

Yes it will, you need a consultation before you apply. Get your case final disposition and schedule a consultation asap.

You need to hire an attorney to review your documents and case history. ITs not possible to give you advice based on your description in a forum...