My dad is in China, I am trying to apply for GC for him. Except for I-130, what else do I need to do?
-Just file the i-130, and then wait for the Nationa Visa center (NVC) to contat you an dgive you instructions. You just need to follow the NVC instructions to do what they ask you to do.
How long will it take to get GC?
-^ months to one year, case by case.
After submitting I-130, is it possible for my dad to come to USA for a visit?
-No for B1/B2 visa.