Can he file his i-485 here in US?

I would think where an aunt and uncle are both in the US they would file I-485s at the same time. If the uncle is outside the US he would not file...

I got an RFE on my H1b Petition asking for the Expert letter.

There are particular rules regarding education evaluation as well as education and/or experience evaluations. There are also particular rules...

Why was my AOS interview cancelled by USCIS? Its been 4 months since my original interview appointment date, what should I do?

You and your attorney should follow up with inquiries and infopass.

Do I really need original copies of my degrees for applying for TN status at the border? Originals are stuck in the US.

A TN employer may provide a border application with copies which are often successful. Originals are often requested. No risk of jail for not...

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Want to Travel outside the US on Advance Parole. Green card is pending!

A person with a pending hardship waiver should not travel on advance parole or risk being inadmissible despite the parole.

H1B. Question regarding cap exemption after petition revocation

You were counted in the cap. Only a revocation for fraud would make you cap subject not a revocation following termination of H employment. Your...

My mom has a tps El Salvador she has the wrong birth month on the permit. Would she be able to change it with out affecting her?

You may change her work permit. It should not affect her tps.

I'm US citizen and want to apply I-130 for my dad only- do I have to provide form F-20 as well?

You might amend your birth certificate.

What is the process of switching my filing from an F4 category to F2B?

Your mother may file a petition on your behalf. The priority date of your sister will not transfer to your mother's petition. Employment based...

H1b transfer.

Without knowing the basis of the denials it would be wise to seek another H1B employer. The employer would be wise to find better counsel.