Finberg Firm PLLC · Licensed in Florida · Fort Lauderdale & Orlando · 305-707-8787

Apply for U.S. Citizenship
with Attorney Guidance

Attorney-guided N-400 preparation for green card holders across the United States. Free eligibility check — find out if you qualify in 2 minutes.

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Full N-400 Service

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Complete preparation, filing, and interview prep by licensed attorney.

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How It Works

1

Free Eligibility Check

Fill out the form below. We review your green card history, continuous residence, and any potential issues — within 1 business day.

2

Attorney Review

Hao Li, Esq. personally reviews your case. If you have complications (trips abroad, tax issues, prior offenses), we flag them before you file.

3

File & Prepare

We prepare your complete N-400 application and coach you for the naturalization interview. Flat fee — no hidden costs.

Free Eligibility Check

Takes 2 minutes. No obligation. Attorney response within 1 business day.

By submitting, you agree to be contacted by Finberg Firm PLLC. This form does not create an attorney-client relationship.

Helpful N-400 Guides

If you are a green card holder thinking about naturalization, these guides explain eligibility, timing, and interview preparation in more detail.

N-400 Eligibility Guide

Review the main eligibility filters before filing for citizenship.

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N-400 Timeline in 2026

Understand the typical path from screening to oath ceremony.

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N-400 Interview Preparation

Prepare for the interview by reviewing timeline consistency, travel, and records.

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Travel History Problems

Review why trips outside the U.S. can quietly delay naturalization timing.

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Tax Filing Issues Before Citizenship

Understand why tax consistency should be reviewed before filing N-400.

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Green Card vs Citizenship Timing

See when filing N-400 now makes sense and when waiting is smarter.

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N-400 Good Moral Character

Review taxes, support obligations, citations, and record consistency before filing.

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N-400 Criminal Record Review

Organize arrests, tickets, citations, and court records before the interview.

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Dismissed or Expunged Records

Check sealed, expunged, or dismissed matters before answering N-400 disclosure questions.

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Court Disposition Documents

Prepare certified court records and proof of completion before the naturalization interview.

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N-400 Selective Service Problem

Check selective service records and timeline explanations before filing.

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Address & Employment Mismatch

Reconcile address, work, travel, and tax timelines before the N-400 interview.

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Child Support & Good Moral Character

Prepare support-order and payment records before filing naturalization.

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Missed Biometrics or Interview Appointment

What to do if you missed an N-400 biometrics appointment or naturalization interview, including rescheduling, notices, and attorney review.

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Move After Filing and Change of Address

Guide for N-400 applicants who move after filing, including AR-11, field office transfer, interview notices, and timeline mismatch issues.

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Three-Year Rule Marriage Evidence

Naturalization guide for green card holders filing under the three-year rule based on marriage to a U.S. citizen, including evidence and risk review.

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N-400 Mistake on Application Before Interview

Found a mistake on Form N-400 before the interview? Review what to correct, what to document, and how to prepare truthful explanations.

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N-400 Uploading Evidence After Filing Online

Before uploading unsolicited N-400 evidence after filing online, review timing, labels, interview strategy, and risk of confusing USCIS.

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N-400 Forgot to Disclose a Ticket, Arrest, Tax Issue, or Trip

If an N-400 omitted a ticket, arrest, tax issue, or trip, review disclosure strategy before the interview or oath.

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N-400 Biometrics Reuse or No Notice

Check biometrics reuse, missing appointment notices, address records, and online-account status after filing N-400.

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N-400 Case Status Stuck After Biometrics

Review field-office timing, background-processing issues, and when a delayed N-400 needs a status inquiry.

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N-400 Interview Notice Never Arrived

What to do when the paper interview notice is late, missing, mailed to an old address, or appears only online.

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N-400 New Arrest After Filing

What N-400 applicants should do if they are arrested, cited, or charged after filing but before the naturalization interview or oath.

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N-400 Lost Green Card Before Interview

Guide for N-400 applicants who lost a green card before the naturalization interview, including replacement timing, ID documents, and interview preparation.

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N-400 Civics Test Failure and Retest

What happens if an applicant fails the N-400 civics or English test, how the retest works, and when attorney preparation may help.

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Case Continued After Interview

Review what a continued N-400 interview means, what records may be requested, and how to respond.

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Oath Notice Delay After Approval

What to check if the naturalization interview was approved but the oath notice has not arrived.

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N-336 Hearing After Denial

Review denial reasons, N-336 timing, evidence, and whether a hearing or refiling strategy fits better.

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N-400 Missed Oath Ceremony or Need to Reschedule

What to do if you missed a naturalization oath ceremony or need to reschedule, including notice review, reasons, and eligibility risks.

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Certificate of Naturalization Error: When N-565 May Be Needed

Guide to Certificate of Naturalization errors after oath, N-565 replacement, name/date mistakes, and when to review records before filing.

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Travel After N-400 Approval but Before the Oath Ceremony

Naturalization travel guide for applicants approved after interview but not yet sworn in, covering oath timing, trips, notices, and risk updates.

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Oath Ceremony Documents Checklist

Prepare the N-445 oath notice, green card, ID, travel updates, and changed facts before the ceremony.

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Address Change After Interview Before Oath

Review AR-11 proof, mail monitoring, and oath scheduling risks if you moved after the interview.

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After Naturalization: Passport and SSN Checklist

Check the certificate, first passport timing, Social Security update, and name consistency after oath.

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First U.S. Passport After Naturalization

Plan certificate timing, travel, and identity consistency before applying for the first U.S. passport.

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Certificate Name Mismatch and Passport

Review certificate, ID, and name-change mismatches before passport or agency updates.

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Lost Certificate of Naturalization After Oath

If a Certificate of Naturalization is lost, damaged, or unavailable after the oath ceremony, the next steps can affect first-passport timing, Social S

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U.S. Passport Delay After Naturalization

After the oath, a delayed first U.S. passport can affect urgent travel, proof of citizenship, returned certificate timing, and follow-up updates with

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Missing Name Change Order After Naturalization

If the oath ceremony changed your legal name but the court order or proof is missing, passport, Social Security, DMV, employment, and travel records c

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Social Security Update After Naturalization

Update citizenship status and name records while keeping certificate, passport, and agency records consistent.

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Certificate Returned After Passport Application

Track delayed citizenship evidence after a first passport application before SSA, DMV, or travel deadlines.

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Passport Application Rejected After Naturalization

Review certificate, name, ID, photo, and proof problems before resubmitting a first passport application.

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N-600 Child Citizenship After Parent Naturalization

Review child citizenship, green card, residence, custody, and proof strategy after a parent becomes a U.S. citizen.

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Child U.S. Passport After Parent Naturalization

Prepare derived-citizenship proof, parent-child records, custody documents, and travel timing for a child passport.

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Certificate of Citizenship vs U.S. Passport for Child

Compare N-600 and passport proof options when a child may derive citizenship through a naturalized parent.

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DMV and REAL ID Update After Naturalization

Plan driver license, REAL ID, SSA, passport, and name updates after oath without creating record conflicts.

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Foreign Passport Travel After Naturalization

Plan foreign passport, first U.S. passport, certificate, urgent travel, and name consistency after oath.

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I-9 and Employer Update After Naturalization

Update employer, E-Verify, SSA, passport, and name records after becoming a U.S. citizen.

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Voter Registration After Naturalization

Review citizenship timing, voter registration, DMV, address, and name consistency after oath.

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Child Turns 18 After Parent Naturalization

Derivative citizenship can turn on whether the child met every requirement before age 18. Families should review parent oath date, green card tim

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Custody Proof for Child Citizenship After a Parent Naturalizes

For derivative citizenship and N-600 planning, custody is often more than a family-law label. Divorce orders, residence records, and actual house

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N-600 Denied for Child Citizenship

An N-600 denial may involve timing, custody, residence, identity, or missing-proof issues. Families should review the notice and records before r

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Child Living Outside U.S. After Parent Naturalization

Review green card, U.S. residence, custody, and passport/N-600 proof if a child was abroad when a parent naturalized.

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Child Citizenship Green Card and Residence Requirement

Check lawful permanent residence, living-with-parent evidence, and age-18 timing before claiming derived citizenship.

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N-600 RFE for Child Citizenship Evidence

Respond to USCIS questions about child citizenship with organized proof tied to the disputed requirement.

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Child Citizenship Birth Certificate Name Mismatch

For derivative child citizenship, birth certificate and parent-name mismatches can affect passport or N-600 proof. Review name changes, translations,

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Stepchild or Adopted Child Citizenship After Naturalization

Review derivative citizenship issues for stepchildren or adopted children after a parent naturalizes, including legal parent status, custody, green ca

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Child U.S. Passport Denied After Parent Naturalization

If a child passport application is denied after parent naturalization, review derivative citizenship proof, custody, residence, age-18 timing, birth r

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Child Citizenship DNA and Paternity Proof

Review paternity, legitimation, birth records, custody, residence, and age-18 proof before passport or N-600 filings.

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Foreign Birth Record Translation for Child Citizenship

Check foreign birth certificates, late registration, translations, and parent-name consistency before citizenship proof filings.

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School and Medical Residence Proof for Child Citizenship

Use school, medical, lease, tax, and household records to prove residence with the citizen parent before age 18.

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Child Citizenship With Divorced Parents

Review divorced-parent, joint-custody, residence, parent-naturalization, and age-18 proof before a child passport or N-600 derivative citizenship filing.

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N-600 Interview Preparation

Prepare for an N-600 interview or follow-up request with organized child citizenship proof, custody, residence, parent naturalization, and identity records

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Parent Naturalization Certificate Unavailable for a Child Passport or N-600 Case

Review options when a parent naturalization certificate is lost, unavailable, or inconsistent in a child U.S. passport or N-600 citizenship proof case.

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Child U.S. Passport Parent Consent and Custody Issues

A child may qualify for U.S. citizenship through a naturalized parent, but the passport appointment can still stall if parent consent, custody au

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Child Citizenship Proof When the Naturalized Parent Is Deceased or Unavailable

When the parent who naturalized is deceased, estranged, abroad, missing, or unable to provide records, the child’s passport or N-600 case needs a

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Should You File N-600 After a Child Already Has a U.S. Passport?

A child U.S. passport can be strong evidence of citizenship, but some families still consider N-600 for a Certificate of Citizenship when future

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Adult Child Derivative Citizenship Proof After Age 18

Some people discover as adults that they may already be U.S. citizens because they derived citizenship before age 18. The hard part is often prov

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Child Citizenship Passport Record File Request

When a child passport was approved, denied, delayed, or issued years ago, the passport application file may contain important citizenship evidenc

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N-600 Certificate of Citizenship Error Correction for Child

A Certificate of Citizenship should become the child’s long-term proof record. If the certificate has a name, date, parent, birth-country, or bio

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Child Citizenship Proof With an Expired Green Card

An expired green card does not automatically defeat a child citizenship claim, but the family still must prove lawful permanent residence, age-18 timing, c

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Child Citizenship When a Prior Passport Renewal Is Denied

A prior U.S. passport can be powerful evidence, but a later renewal denial may signal missing parent citizenship proof, custody records, identity inconsist

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Child Citizenship When No Green Card Record Exists Before Age 18

For many derivative citizenship cases, the child must have been a lawful permanent resident and living with the U.S. citizen parent before age 18. If no gr

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Derivative Citizenship A-File and FOIA Records

When a child-citizenship case depends on events from years ago, the missing proof may be inside a USCIS A-file, passport record, old green c

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Child Citizenship and Late-Registered Birth Certificates

A late-registered or amended birth certificate can create questions in a child U.S. passport or N-600 case. Families may need to connect par

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Child Citizenship Proof When Old Records Are Unavailable

Some derivative citizenship cases are delayed because key records are old, missing, sealed, overseas, or held by another parent. A replaceme

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Common Questions

How long does the N-400 process usually take?

Typical processing time is often around 8 to 14 months from filing to oath ceremony in 2026, but timing varies by field office and case complexity. Attorney preparation can reduce avoidable delay.

Do I need an attorney to file N-400?

No — but an attorney can identify issues before filing, prepare you for the interview, and handle complications that could result in denial.

What if I have trips outside the US?

Trips over 6 months can disrupt continuous residence requirements. An attorney review before filing is especially important in these cases.

What is the flat fee?

Full N-400 service is $1,199, including application preparation, document review, and interview coaching. No hidden fees.

N-400 Receipt Notice Delayed After Filing

What N-400 applicants should check when the USCIS receipt notice is delayed after online or paper filing.

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N-400 Online Account Access Code Problems

Guide for N-400 applicants who cannot access a USCIS online account, access code, notices, or case updates.

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N-400 Outside Normal Processing Time Inquiry

When and how N-400 applicants should think about USCIS outside-normal-processing-time inquiries and delay evidence.

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N-400 Name Check Delay After Interview

Review background-check, name-check, and post-interview delay records before deciding how to escalate a naturalization case.

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N-400 Mandamus Lawsuit for Citizenship Delay

Review inquiry history, risk facts, and realistic goals before considering mandamus for a delayed citizenship case.

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N-400 Decision Cannot Be Made After Interview

How to organize the interview result, missing records, and follow-up timeline when USCIS cannot make an immediate decision.

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N-400 Second Interview Notice After First Interview

Prepare for a second naturalization interview after a continued case, background review, or confusing first interview.

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Frequently Asked Questions

What should I review before acting on Apply for U.S. Citizenship with Attorney Guidance?

Review the facts, dates, immigration records, and supporting documents before filing or responding. A lawyer can help spot issues that are easy to miss.

When should I contact an immigration attorney about Apply for U.S. Citizenship with Attorney Guidance?

Contact an attorney before submitting forms, answering government questions, traveling, or relying on an uncertain record.

How can Finberg Firm help with Apply for U.S. Citizenship with Attorney Guidance?

Finberg Firm can review eligibility, risks, documents, and next steps so you can make a more informed immigration decision.

FAQ

Common Questions

Review related SmartUSVisa guides, then contact Finberg Firm if you want legal help.

Who is this N-400 page for?

This page is for green card holders considering naturalization who want a clearer review of eligibility, risks, and filing options.

What if my N-400 case is not straightforward?

Travel history, taxes, criminal history, or other complications should usually be reviewed before filing rather than guessed through DIY research.

What should I read before requesting N-400 help?

Start with the eligibility, timeline, and interview preparation guides so your consultation request is more focused.

Related Guides

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