Green card interview

The issue is your intent and his. Regardless of him getting another woman pregnant, is this a good faith marriage? Do you still want to be...

F1 expired need h4

You can't. Leave ASAP.

On the DS160 there is a question which states whether I have overstayed in the US . Should I say yes or no for that ?

Answer truthfully and explain during interview. It should be fine. It's much worse to not disclose and then be caught in a lie.

How many days grace period I can stay in the US if my H1B transfer petition denied ?

Are you currently on valid nonimmigrant status (OPT ?) or has that already expired? If you have no underlying status and your H-1B application is...

Can Employer B re-open the H1B incompleted case , after Employer A withdrawn the application?

No, based on these facts you never had an H1B approved.

When can I apply for green card after marriage?

You cannot enter the U.S. in F1 status with plans to marry and live here permanently. This is contrary to the nonimmigrant intent required by the...

If i marry my american finance in the uk, does immigration here accept that? Can we file quicker.

Yes, US immigration will accept your marriage certificate from the UK. Bigger issue is traveling, your current status, your plans and timing it...

I have to renew my i94 which is expiring in January. I am on E2 visa which is valid for another three years.

You can apply for an extension by filing an application with USCIS (essentially resubmitting all same updated documents) OR you can leave the U.S....

My cousin recently came to USA and working here on H1 . Planning to bring her husband to USA on H4, who already got stamped.

He can apply in April for an H1B.

Certainly sounds suspicious and likely USCIS will investigate. However, Why are you involved in this situation?