I got married to a US citizen and am filing form I-485 . I am unsure which box to check for Part 2 of the application type.

You should check "a." An immigrant petition giving me an immediate visa number...." Good luck!

Do I need to go back to my home country during the gap period ?

I am afraid you do.

Do i still qualify for the defered action childhood arrival?

You need to immediately seek, and hopefully retain, competent immigration counsel in your area.

Hi i am a student who came in US with J-1 visa who exspire on 28 sep.is is posible to extend my visa with B1?what i need to do

Depends on the type of J-1 visa you are under. J-1 visas usually cannot be extended. What you are alluding to is a change of status to B-1/B-2...

Can company B apply for H1B if company A revokes the H1B.I am in valid OPT status.

No. No effect since you are not in H-1B status yet but on a valid OPT. As to the revocation and its effect on being again counted for the cap,...

Working on Expired EAD

Whether this will be counted as your "employer's fault" or not will not do anything to solve your problem. Did you obtain the USCIS receipt of...

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I left USA while pending green card. Can I go back with tourist visa?

No. By having left the U.S. without seeking, and obtaining an Advance Parole (on Form I-131) you in effect "abandoned" your AOS appliccation. It's...

I'm filling out my DACA and I am wondering if I should use my maiden in name or my married name as the family name ..

Either one should be OK. Why not use both (if you intend to use both)?

How do i i get the 2 year peemit? For students.

I agree with both my colleagues.

How much will lawyers charge to help with the process of differed action?

Depends on the complexity of each application and the time and effort needed to be spent by the attorney.