Citizenship Lawyer: Do You Need One for Naturalization (N-400)?
Updated October 31, 2026. Sources: USCIS.gov.
Not legal advice. GreenCardBlog.com is an independent information site, not a law firm and not affiliated with USCIS or any government agency. Immigration rules, fees and timelines change. Always confirm details on USCIS.gov and consider speaking with a licensed immigration attorney about your situation.
Many permanent residents file Form N-400 for U.S. citizenship on their own. Others hit issues where a lawyer is worth the cost. Here is how to tell the difference. Source: USCIS: Form N-400.
Basic eligibility (general rule)
- At least 18 years old.
- A permanent resident for 5 years, or 3 years if married to and living with a U.S. citizen who has been a citizen for those 3 years.
- Continuous residence and physical presence in the U.S. for the required time.
- Good moral character, and able to pass the English and civics tests unless an exception applies.
See USCIS: I am a permanent resident of 5 years and use the USCIS early filing calculator before you apply.
When to talk to a lawyer first
| Situation | Why it matters |
|---|---|
| Any arrest, charge or conviction, even if dismissed | Some offenses can lead to denial or removal proceedings |
| Long trips abroad (over 6 months) | Can break continuous residence |
| Unpaid taxes or not filing taxes | Bears on good moral character |
| Questions about how you got your green card | USCIS reviews your whole history |
| Claimed U.S. citizenship or voted in error | Can be serious |
| Prior denial | Need to fix the problem before refiling |
A clean, simple case may not need a lawyer; a short paid consultation can confirm that. See free consultations and lawyer costs. Fees change: check the USCIS fee schedule.
Keep reading: Re-entry Permit for Green Card Holders; Asylum Lawyer; Green Card for Parents; Green Card Interview Questions.
Frequently asked questions
Who is eligible to apply for U.S. citizenship (Form N-400)?
At least 18 years old; A permanent resident for 5 years, or 3 years if married to and living with a U.S. citizen who has been a citizen for those 3 years; Continuous residence and physical presence in the U.S. for the required time; Good moral character, and able to pass the English and civics tests unless an exception applies.
When should I talk to a citizenship lawyer before filing?
Any arrest, charge or conviction, even if dismissed: Some offenses can lead to denial or removal proceedings. Long trips abroad (over 6 months): Can break continuous residence. Unpaid taxes or not filing taxes: Bears on good moral character.
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