I am US Citizen orig. from Thailand. After I filed for my Nat N-400 & prior to 2 months before interview son born in Thai 1999. During Naturalization interview thought question regards children is about children in US, I said No. Later applied for I-130 for son & wife, both admitted as LPR in 2000, no problems. Son automatically USC due to CCA in 2001. Wife not yet naturalized, some Thai inheritance policy issues.
If apply for N-600 for son CoC any potential issues ? Is applying parent A-file & old forms scrutinized. Is he better off applying after he turns 18.
He have US passport but if he let it expire say 40 years from now or it get cancelled/ revoked, no proof of citizenship. Would want to get CoC if possible.
Your advise is greatly appreciate & valued. Thanks.