No, it's not possible

来源: 2023-09-19 16:05:21 [旧帖] [给我悄悄话] 本文已被阅读:

Parent of US citizen is in the Immediate Relative category. This category cannot have derivative beneficiaries.

After the father becomes a permanent resident, he can immediately petition the other sister to immigrate as the child of a permanent resident, in the F2A category. It will take maybe 2 years until she can immigrate.