In the United States, a family may legally hire a U.S. citizen, an alien lawfully admitted for permanent residence, or an alien with a valid work permit. US employers are required to verify a candidate's employment eligibility using Form I-9. 4nannies.com discourages applicants who do not have US work authorization; however, it is the responsibility of the family to confirm that the candidate they wish to hire is legally eligible for work in the U.S.

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