Can I be legal guardian (20)to my sister (8)?

Talk to a family attorney about adopting your sister and of course, process your permanent residence based on marriage to a USC...

Can I live in Washington state by my self at 16 ?

If you have friends in WA and you will be living with them, it is possible to enroll in school. Check with the school where you want to go and see...

Talk to your DSO, since they are the ones that said you did not have to be in F1 status for a full year. Ask them what they are basing this...

US marriage certificate is valid abroad at the US embassy even if you are not US Citizens. If CBP suspects you are entering the US on ESTA to...

H1B is transfer denied on march end approved H1B extension is in RFE?

ITs not clear whether you have maintained status and if you are eligible to file another H1B petition and "transfer" in the US. Its possible you...

Change from AOS to consular processing?

Sounds like you can do either one. Make sure you are fulfilling your permanent resident requirements and living permanently in the US for more...

My L2 visa is expired but my EAD is valid until 4/19. Can I work for a US company without valid L2?

If your husband is no longer on L status, then your L2 dependent status, including the EAD, is no longer valid.

H1B check not cashed, no receipt?

Most likely, although you won't know for sure until USCIS confirms that its so, or you receive the package back.

Returning back to US with EAD after green card issued?

You need travel permission to leave and reenter or you can have a friend send it to you. Make sure it is being mailed to an address where the mail...

Can my brother apply to a tourist visa to come and visit me in the US and once he’s in the US , can he apply to a work visa?

Maybe, but we would need to know more about his background to know if he qualifies for a nonimmigrant visa allowing work.