What can be done if a person is married to a US citizen, but didn't come in legally?

It may or may not. There is a a waiver called the 601A provisional waiver which can potentially allow the undocumented spouse to apply for a waiver...

Will the address not being changed be a problem?

You should be fine. You can provide the explanation at the interview.

Hi do you have an attorney working with you on this matter?

OPT unemployed close to 90 day , apply h4 and stay in usa ?

I agree with my colleague. How are you calculating unemployment if you are not authorized to work?

What is the correct name to be used, the original name or the new name from passport? Thanks a lot!

The name on the passport would control and the I130 should ask for any other names used where the previous name could be indicated.

When do I apply for citizenship? Does the 3 yrs rule still apply to me even though I didn't get the 2 yrd greencard?

Yes the 3 yr rule applies. You can apply after 2 yrs and 9 months as long as you resided with your spouse etc. Sit down with an immigration...

Can people of the same sex apply to green card based on marriage?

If your friend is a citizen (lpr) then this is possible. I would have your friend set up a consultation with a qualified immigration attorney to...

Kindly, help me with ur valuable suggestions

You can convert from h4 to f1. You could consider the following: H4 to F1 Visa •F1 Visa to CPT ( if you want Internship) •F1 Visa to OPT •OPT to...

I130 q10

Yes that would be correct. Good luck here.

How long can I not be employed ? will I immediately become out of status once my current employer terminates me?

Once your job related to the H1b is terminated, you employment authorization also ends.