Help needed - is it possible to come back to USA with green card

来源: 于 2014-11-24 23:39:06 [旧帖] [给我悄悄话] 本文已被阅读：次

My in-laws have been out of the country for 1.5 year and want to come back to US as PR using green card. Are their green cards still valid after being out of the country for long time?  Do they have to get a US visa? 

Thanks in advance.