What is a visa-sponsor responsible for?

It includes "needs based public benefits". It means government benefits, not debts to private businesses, including hospitals.

I have a B1/B2 USA visa . To change my status to R1, is it better for me to remain in USA, or to be out of USA?

Better to do it in the U.S.

Are there any problems for me to get an EAD if I filed Form I-485, G-325A, I-765 but not I-131?

It is not a problem at all and will not cause any delay.

I entered as a crewman 4 years ago an just got married to my us citizen fiance what should i do next? file an i-130 and i-601a..

If the new law is enacted, you may be eligible for a 245(I) waiver and could adjust in the U.S. The first step is your wife has to file an I-130...

You really, really need a professional. To begin with, I assume you were told you need a "pardon" letter, because people translate "waiver" into...

My Son and Daughter came in USA with legal entry age of 2yrs and 4yrs in OCT1999,

Then they should file for deferred action.

Can I apply to my sister's residency if I am a US citizen? How long does it take with the new changes?

You can file a visa petition for her, but it will not extend her stay in the U.S. and she will need to leave and wait for it to be available, in...

My mom wants to get citizenship. She has lived here for over 45 years with my dad, they are from the "old country", ya Mexico!

You need 5 years permanent residence to file for US citizenship. Depending on their age they may be exempt from the test.

Green Card...

The US does not have any say on whom Canada, the Bahamas, or Mexico will admit into their countries. You should contact their embassies for...

My child support is in arrears

If you are the petitioner, no.