There is slightly more to it than that. Consult with an attorney.

My green card was sent to ne on April 13, but No tracking number , No update from USPS

If you do not receive the card within 2 weeks, follow the instructions on the website.

How soon can I start paperwork for My Mexican wife? I do not have enough income to show from last year.

You could use a joint sponsor--someone who is a green card holder or citizen who is willing to assist you.

If the TPS beneficiary is deemed to "maintaining lawful nonimmigrant status" it would seem that he is eligible to adjust status if maintaining such...

Do the USCIS ask for Federal Tax Return ?

No, but they may ask for the tax return in connection with any underlying application, such as an I-485.

Is prevailing wage determination request required for perm?

Yes, this has been a requirement since 2005.

Hi. I'd like to ask about Cross Chargeability. Is it possible to elect my child's nationality?

No. A child may be charged to the country of birth of his parent, not vice versa.

It may be possible if citizenship was acquired at birth or derivatively at a later point, the determination of which would require extensive analysis.

Can i use EAD on my new L2 visa?

Technically, the EAD is invalid if based on a revoked visa.

What is the right address do I need to address when I write an affidavit letter of support for a couple who got married 2015?

You put the current address for any contemporaneously filed document.