Petitioning for kids, able to leave the US during this time?

[L37 0]

Consider the following scenario: USC petitions for foreign parent, who becomes a permanent resident. Parent now petitions for her children who are under 21. During the time between petition and the children being granted a visa, can the parent live or visit overseas? I heard something about being able to do so provided that the parent comes back to the US every 6 months. Alternatively, I heard it is okay provided they get a re-entry permit. So I don't know what the right answer is regarding this. Also, can parents petition for married children, or children over 21?

[aaron2020 11,651]

An LPR can get a re-entry permit which allows the her to be outside the US for up to 2 years.

However, the re-reentry permit only eliminates time outside the US when considering if the LPR has abandoned her LPR status. The LPR must still maintain ties to the US.

An LPR who fails to maintain ties to the US will be deemed to have abandoned her LPR status even if the person has a re-entry permit.

Google "USCIS maintaining legal permanent residency."