Applying for green card while on a B-1 or B-2 visa
The following FAQ should cover the issues.
Q. I am a US Citizen. My parents (or spouse/spouse-to-be) are in USA on visitors visa. Can I apply for their green card? How does it all work?
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Radio Show, 2015 March 25, legal immigration plan progress, L-1B visa changes, I-140 revocation
Immigration Law
Green Card
USCIS Posts Updated L-1B Adjudications Policy for Public Feedback
U.S. Citizenship and Immigration Services (USCIS) Director León Rodríguez today announced the release of an updated policy memorandum on the L-1B nonimmigrant visa classification for workers with specialized knowledge.