Whether one sibling’s green card sponsorship can benefit another sibling

When one sibling is a green card holder, calculating how other siblings could obtain a green card can seem complicated.
There’s no need to overthink the possibilities — it can be explained simply.

One common approach: after one sibling obtains a green card, they sponsor their parents; once the parents get their green card, they in turn sponsor their children (the original sibling’s other siblings). But so many people use this approach that a long waitlist has built up — reaching your place in line can take anywhere from about 10 to 15 years.

If the green card holder becomes a citizen, their earlier sponsorship petition can sometimes be updated to a citizen’s petition, moving things up somewhat in priority — though since most petitioners eventually become citizens and try to do the same thing, this update may not always make a big practical difference. Still, since most people forget to do this, updating the petition to reflect the citizen sponsorship once a family member naturalizes can be a meaningful step. In general, rather than one sibling directly sponsoring another, sponsoring the parents first and then having the parents sponsor the children tends to be the fastest route.