Fill up i864 forms

check out this video and skip to the I-864 discussion (at the 53 minute mark it starts): http://westimmigration.com/i-130i-485-do-it-yourself-guide/

Can I petition for a green card for my almost 21yo step son who was under 18 years old when his mother and I got married?

As my colleagues have mentoned, yes it is possible but time is of the essence. Also, if you're looking into how to file check out this free do it...

My fiance's i94 has expired. I am a citizen, can we still get married? and can he still stay?

Yes, it should be fine, but there might be some other issues, so it's best to speak to an attorney to discuss further. [removed]

Is it best to file I130 and I485 at the same time for parents of US citizen (in US now)?

Should be fine, but there can be some complications due to them entering on the B2, but since their decision took place after admission, it should...

I entered the US on a B/2 Visa, met and married a US citizen. I want to stay in the US but first I need to go home for business.

As my colleagues have mentioned, you'll have to apply for AP and wait for it to get approved before leaving, or else you abandon the I-485 and will...

In my B-1 Do I need to mention reinstatement as a status violation ?

Hiding an obvious fact will potentially open up a more serious can of worms :)

Marriage to a green card holder

He can file a standalone I-130, and you can adjust once the PD is current (meaning you have to legally maintain your stay in the US, and you can do...

F-1 Student went back home want to come back to the US on B2

I assume you mean the B2 was denied. You can apply again, and I recommend providing proper evidence to show ties to your home country. This free...

Can a student in the United States on F2 invite his spouse on B1 through the university than the normal F2? Any advantage?

F-2 for a long term stay, B-2 for short term. If you want to maximize his chances of getting a B-2 visa, you can check out this video guide:...

If I now marry a green card holder , can I enter US as I have a 10-yr multiple entry tourist visa to US since an year.

It's actually not a cut and dried answer to your question. If the person has used the visit visa in the past, and on this particular trip, just...

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