If she has a copy of the document she signed, she needs to take it to an attorney to review so they can help determine what exactly happened. It...

Can I travel while my green card renewal is processing?

Its not invalidated, and its fine. Carry the extension receipt with you to show you filed for an extension although not required. You can also...

If I can petition for them, how long after I should submit the petition after their arrival in the US? Many thanks.

If they are intending to immigrate to the US in this visit and they enter as visitors, they could have issues with misrepresentation. If you are...

Can one apply for H4 after employment based AOS is denied?

yes, as long as she has maintained status (or not accrued +180 days of unlawful status) in the US she should be able to apply for/use the H4 visa...

Can beneficiary of a family 1st pref. petition(F1) get married the next day after admission in the US or it has wait 90 days ?

That policy has nothing to do with a US lawful permanent resident entering the US to marry.

CCan i have her deported back to africa?

You could let ICE know it was a fraudulent marriage, but you will also be subject to criminal charges.

Is it possible to adopt a 30 y.o. immigrant on student visa in MD by a US citizen? How is the procedure started?

Adoption only works to obtain immigration benefits if the adoption occurs before the foreign national is 16 years old or less.

In my I-797 approval i have the name Company-name Inc, in my DS I60 , I have submitted just the Company-Name without "inc" ?

This should not be a problem during the interview.

Is there a residency term requirement in San Antonio TX as green card holder before applying for naturalization?

Read the instructions to the N400, it says you are required to have lived 90 days preceding the application in the district where you are applying.

Immigration advice.

It may help if you are being admitted into a 4 year program at a University, have ties to China, and you have money to pay for the tuition.