Address change on asylum

Yes, please file AR 11 with the Vermont Service Center. You can do that online on uscis website.

New Additional Supporting Documents for Asylum case. What form and where i can get it?

Yes you can use copies or print outs of the relevant Internet articles to support you claim for asylum.

Extending H1B on approved I-140 from previous employer

For as long as your former employer does not withdraw the I-140, which most prudent employers would do, another employer can use it to qualify you...

In cr1 visa I-130 as common property i gave half of house to US wife with unregistered contract same way i bought it. evidence ?

Yes prove of joint possession of a real estate property can be used as evidence of the genuine nature of the marriage.

Inivite

If she gets the visa and comes to stay for six months she can stay anywhere in the USA she wants.

If my change of status form an F1 to an F2 was denied, can I apply again in my native country to get my F-2 visa?

Yes you can seek a derivative visa at the US consulate abroad.

I'm a us citizen and i got married in Mexico how do i start the process to legalize my husband?

You file USCIS form I-130 and wait until it is approved. Once it is approved, you will have to deal with National Visa Center to have an immigrant...

Do I need a visa from my home country if my my change of status from f1 to b2 is accepted while I am in my home country.

Yes, you need a visitor's visa to visit USA for travel purposes.

Can I apply for change of status from H1B to F1 after H1B is approved but before it takes effective? How long is it takes?

You can but you are not on h1 status yet and if you do not start working for the employer will never be on it.

I agree. You can apply but your visa will not be issued for as long as you are subject to HHR.