Hello, I have a couple immigration related questions. 1. My brother has a tourist visa that's valid for another 2 years and I was planning on applying I-130 for him. Would he be barred from entering the US as a tourist once I file? 2. My dad, a GC holder, has been living in Nepal for 4 years. By law, his GC is most likely automatically revoked. What alternatives do I have other than applying for his GC again?