Yes, you are allowed to stay and wait for the outcome of the case.

Yes you can file for a green card. Please contact me to discuss the details. Thank you

My wife of 2 1/2 years is mental & physical abusing me.because I`m an immigrant?

Hello. There are ways of helping you. Please let me know if you would like to schedule an appointment to go over the options.

Do I need to fill out separate 485, 864, and 131 forms for my wife and stepson?

If you are a U.S citizen you have to file separately for each one of them.

I have been married for 28 months which green card will I be able to get ?

You will get a 10 year (permanent) Green Card.

Extend visitor visa

Yes she can. Make sure she files the forms well ahead of time.

I am Brazilian and I changed my B1 visa to F1 here in the USA. Can I visit my country and come back to study?

Chances are that the embassy will refuse to issue a visa and you will be stuck in Brazil regardless of your F1/I-20.

Should we postpone our our I-485 interview while we have a pending case for vacating an order of removal?

You might be able to go forward and actually get a green card. Check her NTA - if she is charged as an Arriving Alien, you will be fine.

How can I bring my grandfather and uncle as assistance to USA , I am citizen?

Unfortunately you cannot petition for them. Your parents (if they are US citizens) can petition for your grandfather.

Can a green card holder do fiancé visa?

No. Only USC can apply for a fiance visa. However, if you get married you will be allowed to petition for him and bring him here with a green card.