Can a sister sponsor her brothers after their mother's petitions were approved but she dies?

Humanitarian reinstatement may be an option but best to consult with an experienced attorney to review the specifics of the case.

Contact NVC right away to indicate the correct spelling of your name per passport.

Do i have to fill out 2 i 539 forms for B2 visa extension?

You will need to file a separate I539 application for each parent.

Returning/ Visiting the US after 10 year ban deportation

I agree with my colleagues - best to have your USC spouse petition for you.

Can I file for i485 after i360 has been sent?

Yes you may and should include a copy of the I360 receipt and PFD.

Can i still get married?

Yes you may marry but whether you are able to apply for an immigration benefit is another analysis, depending on the specific facts of your case.

How can I marry my boyfriend from Egypt and get him out of there before someone kills him for being gay?

You would need to consult with a German immigration attorney for assistance or if you relocate to the US, you may petition for your spouse.

N400 interview, selective service, over 31 age?

I agree with my colleagues re: providing a statement re: failure to register.

Is it normal to wait 6 months for a biometric appointment after filling i751 removal of conditions?

It may be, under certain conditions such as a move or an update in your file.

Can I go to my home country after filing my I-485?

Did you file the I131 as well? You will need to wait for that to be approved prior to travel.