Can IMG Physician(Indian national) start her own practice by apply GC through EB2 PNIW?

You really need to consult with a Board Certified immigration attorney. This is entirely too complicated to address on a blog.

Which parents should I put in my I-130?

The only parents you have are your adopted parents. That should not impact the marriage case.

What steps do I need to take to prove that me and my mother are related in a form I-130 and be accepted by the USCIS?

You need to consult with a Board Certified immigration attorney to discuss the DNA option as well as the legal process your mother used to transfer...

Changed visa category inside the US. I am eligible for an automatic visa revalidation when back to us?

Yes, you should qualify for automatic visa revalidation. Perhaps you can ask your immigration attorney (your spouse's) for the nationalities that...

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It will e best to discuss this with your immigration attorney who is being paid to represent you and the company, not just the company.

You need to consult with a Board Certified immigration attorney. Good luck.

Can I keep 2 EADs at the same time?

Good question for the immigration attorney ring paid to represent you. Good luck.

The problem is you applied for adjustment of status when you should not have. Now when/if you apply for CPT CIS can terminate your F-1 status for...

USCIS code asking for evidence (8CFR) 103.2(b)(8)(iv)?

You need to consult with a Board Certified immigration attorney so he/she can read the RFE. Thanks

F-1 visa, while divorce is in progress.

It should not make any difference to the visa process but it also does not matter since you must tell the truth during that process.