回复：投资移民没有移民监，这个可信吗？

every GC holder is the same (except military or diplomat deployed abroad by official order, or people with approved N470, then they will be considered residing in USA even when deployed.)
you can defer the 移民监 later by getting reentry permit. 只要每年2次登陆美国（住几天无所谓)即可 can work for every body for one year (or two), but not in the long run.