I obtained my conditional green card 100 days after my parent, the principal applicant
I obtained my conditional green card 100 days after my parent, the principal green card applicant.
Do I need to file a separate I-751 for the removal-of-conditions application?
If you obtained your conditional green card 90 or more days after the principal applicant (parent), you need to file a separate I-751 to remove the conditions. You can check whether the difference is 90 days or more by comparing your respective green card expiration dates.