A US citizen does not need immigrant admission as a derivative. Confirm the actual citizenship facts and appropriate documentation.
Identify the correct benefit sought
Do not assume every child in a household is an immigration applicant. Equally, do not claim citizenship merely to remove a person from the budget without the supporting facts.
Identify the actual applicant and individual or corporate route before assuming that a package description accurately reflects the government programme. Confirm which underlying classification applies and identify any unresolved eligibility question, such as an admissibility issue, before assuming a financial commitment resolves it. Permanent residence then follows through an existing immigrant classification, which means the ordinary grounds of inadmissibility apply, and a visa number must be available under the Visa Bulletin for the applicant's country of chargeability. A first review should identify the applicable employment-based immigrant basis, the applicant's admissibility and visa-availability issues, and which family members seek benefits. Successful applicants receive lawful permanent resident status through an EB-1 or EB-2 classification, subject to eligibility, admissibility and visa availability, so the resulting status is permanent residence rather than citizenship. Ask which classification the case is being assessed under and what that category expects an applicant to show, because evidence supporting one immigrant classification may be irrelevant to another and the determination stage shapes what belongs in the submission.