My niece was born in US but raised in mexico now pregnant wants to marry her fiance What is the fastest way to get his greencard

She may petition for her spouse but will need to establish her domicile among other evidence criteria. Consult with an attorney for guidance.

You should indicate 221g and submit only what is requested - the new and current passport.

How do you amend an I-130 that has already approve.. that has a middle name typographical error ?

You can notify the relevant authority who has your case, whether NVC by phone or email, Embassy at time of interview, or US service center officer...

What are my legal responsibilities as a Co-Sponsor for an Immigrant?

It is best to read the I864 form instructions and review the USCIS webpage here to understand the responsibilities of a co-signer:...

Request for evidence for greencard?

If you decide to delay for the 10 year green card, you should mail the RFE response well before the deadline. that is your personal decision how...

Adjustment of status: need photocopy of marriage cert with I-765?

You should be okay but if not, USCIS will request the document and you can mail thereafter.

Notice Of USCIS' Intent To Terminate My Status Was Mailed ? for I751 will be approved or denied ?

It appears that USCIS may be denying your case. Await the decision and then contact an attorney right away.

How can I guarantee success in my SB-1 Visa interview? What are my chances of success given my scenario?

6+ years after abandoning residency, it will be difficult to obtain the returning resident visa. For a case such as this, it is best to consult...

What documents do I have to take at i485 interview ?

This is a good start but additional evidence of good faith marriage is recommended. It is advisable for you to consult with an attorney for...

Video is acceptable however you should have additional evidence of your good faith marriage, cohabitation, and evidence of abuse in the marriage.