By the way,

来源: 863211 于 2011-04-25 21:21:18 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (187 bytes)

Your mother has to be a US citizen formally (get the certificate), then your brother can get the married later. Otherwise, the F2B I-130 will be void and can not be upgraded to F3.

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