For lawful permanent residents who have built their lives in the United States, naturalization is the final step toward full legal belonging. It is also the most consequential application most immigrants will ever submit. A single oversight on Form N-400, an unexplained gap in travel history, or an undisclosed legal issue can derail a case that took years to reach.
The citizenship attorneys at Lightman Law Firm guide clients through every stage of the naturalization process with the honesty, precision, and personal attention this milestone deserves. Our legal team has handled citizenship and immigration law cases for over three decades, serving clients from our offices in New York, Jersey City, Fairfax, and the greater New England region.
What Is U.S. Citizenship & Why Does It Matter?
U.S. citizenship is the highest, most secure form of legal status available to foreign nationals in this country. Citizens enjoy rights and protections that lawful permanent residents do not, and the difference is substantial.
As a U.S. citizen:
- You gain the right to vote in federal, state, and local elections.
- You can hold a U.S. passport, which opens visa-free or visa-on-arrival access to more than 180 countries worldwide.
- You are no longer subject to removal or deportation proceedings, and your status is permanent and unconditional.
- You can petition for a broader range of family members to immigrate, including parents, siblings, and married adult children, and those petitions carry priority over green card holder petitions.
- You become eligible for federal employment, federal financial aid, and certain government benefits not available to green card holders.
For most people, citizenship also means relief from the anxiety of maintaining and renewing their status indefinitely.
4 Ways to Become a U.S. Citizen (Discover Which 1 Applies to You)

There are four primary pathways to United States citizenship under nationality law. Understanding which one applies to your specific circumstances is the first thing an experienced immigration attorney will help you determine.
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Birthright Citizenship (Jus Soli)
Birthright citizenship applies to any person born on U.S. soil, regardless of the immigration status of their parents. This principle is established by the Fourteenth Amendment to the U.S. Constitution. If you were born in the United States or its territories, you are a citizen by birth*.
*The one exception to this is children born in the U.S. to official foreign ambassadors, ministers, or diplomats with full diplomatic immunity. The reason for this is that diplomats are not subject to the jurisdiction of U.S. law. If, however, the parents are consular officers or embassy staff without full immunity, birthright citizenship does apply.
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Citizenship Through a U.S. Citizen Parent (Jus Sanguinis)
Citizenship by descent applies to individuals born abroad to one or both U.S. citizen parents. Whether you acquired citizenship at birth depends on the laws in effect at the time of your birth, how long your U.S. citizen parent resided in the United States before your birth, and whether the U.S. citizen was your mother or father.
These cases can be complex, and the rules have changed significantly over the decades. If you believe you may have a claim to citizenship through a parent, a citizenship attorney can review your circumstances and advise you on how to seek a Certificate of Citizenship from USCIS.
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Derivative Citizenship
Derivative citizenship is acquired automatically by a child when a parent naturalizes, under certain conditions. The child must be a lawful permanent resident, under age 18, and residing in the United States in the legal and physical custody of the naturalizing parent.
If those conditions were met, the child may already be a U.S. citizen without having filed any application. USCIS Form N-600 may be used to obtain documentary evidence of that status.
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Naturalization
Naturalization is the legal immigration process by which a lawful permanent resident voluntarily applies to become a U.S. citizen. It is the pathway that applies to the vast majority of immigrants seeking citizenship, and it is the process Lightman Law Firm assists clients with directly. The rest of this page focuses on naturalization.
How Do You Qualify for Naturalization? 8 Key Conditions to Meet
USCIS sets out specific eligibility requirements for naturalization. Every condition must be satisfied before you complete Form N-400. The table below summarizes the key requirements.
|
Requirement |
Details |
|
Age |
Must be at least 18 years old at the time of filing. |
|
Lawful Permanent Resident Status |
Must hold a valid green card prior to applying. |
|
Continuous Residence |
5 years as an LPR (or 3 years if married to and living with a U.S. citizen spouse). |
|
Physical Presence |
Must have been physically present in the U.S. for at least half the required residency period (30 months out of 5 years, or 18 months out of 3 years). |
|
State/District Residency |
Must have lived in the state or USCIS district where you are filing for at least 3 months prior to applying. |
|
English Proficiency |
Must demonstrate the ability to read, write, and speak basic English (exceptions exist for older applicants with long-term LPR status). |
|
Civics Knowledge |
Must pass a test demonstrating knowledge of U.S. history and government. |
|
Good Moral Character |
Must demonstrate good moral character throughout the entire required residency period (USCIS will review your full A-file). Prior criminal convictions, tax delinquencies, failure to register with the Selective Service, or fraud in any prior immigration application can all affect eligibility and should be reviewed by your citizenship attorney before you file. Certain criminal offenses are permanent bars to naturalization. Others are conditional bars or require a waiting period. |
The physical presence and continuous residence requirements deserve particular attention. Extended trips outside the United States during the statutory period can create problems that are avoidable with proper planning. Your citizenship attorney will calculate both figures from your travel records before filing to confirm you are eligible.
Everything to Expect: A Stage-by-Stage Overview of the Naturalization Process
The naturalization process moves through five distinct stages, each handled by USCIS or a federal court. Here is what happens at each one and when to expect it.
|
Stage |
Agency |
What Happens |
Typical Timing |
|
1. File Form N-400 |
USCIS |
Submit application, supporting documents, filing fee |
Day 1 |
|
2. Biometrics Appointment |
USCIS |
Fingerprints and background check |
3–5 weeks after filing |
|
3. Naturalization Interview |
USCIS |
Officer reviews application, administers English and civics tests |
8–14 months after filing (varies by field office) |
|
4. Decision |
USCIS |
Granted, continued (more evidence needed), or denied |
Same day as interview or shortly after |
|
5. Oath of Allegiance Ceremony |
Federal or State Court / USCIS |
Formal swearing-in; Certificate of Naturalization issued |
1-2 months after approval; select locations hold the ceremony the same day as the interview |
You Don’t Have to Navigate This Alone: Find an Experienced Citizenship Attorney to Help

Working with an experienced citizenship attorney reduces the risk of delays, continued interviews, and outright denials. At Lightman Law Firm, our citizenship lawyers prepare every N-400 with the same thoroughness we apply to any complex immigration case. We:
- Review your complete immigration history
- Assess any potential good moral character issues before you file
- Help you gather and organize the evidence USCIS will require
- Prepare you for your naturalization interview in detail
Lightman Law Firm has been recognized by Super Lawyers and is a member of the American Immigration Lawyers Association (AILA). We have served more than 100,000 clients and maintain a high rating on Google by advocating for our clients’ best interests with our extensive experience and expertise.
Ready to move forward? Contact our team today for a consultation with our team.
The Ultimate Naturalization Interview Prep Checklist
The naturalization interview (also known as the citizenship interview) is the moment when everything you have prepared comes together.
The USCIS officer will verify your identity, review your N-400 line by line, administer the English and civics tests, and assess your good moral character through direct questioning. Here is how to walk in ready:
|
Category |
What to Do |
Why It Matters |
|
Your N-400 |
Review every answer on your N-400 until you can speak to it confidently |
The officer will go through your application line by line. Any inconsistency between your answers and your testimony can raise credibility concerns |
|
Your Documents |
Bring your green card, government-issued photo ID, documents relevant to your unique situation and any documents requested in your interview notice |
Missing documents can result in a continued interview or delay your approval |
|
Supporting Evidence |
Organize evidence relevant to your case, such as passports, tax returns, travel records, dispositions, marriage certificates, divorce decrees, etc. |
USCIS reviews your full A-file; having clean, organized records demonstrates good moral character and continuous residence |
|
Travel History |
Be prepared to account for every trip outside the U.S. during your residency period, including dates and destinations |
Extended absences can raise questions about continuous residence: you need to explain and document them clearly |
|
The Civics Test |
Study all 100 possible civics questions; the officer will ask up to 10 and you must answer at least 6 correctly |
Failing the civics test means a re-examination within 60–90 days; failing twice results in denial |
|
The English Test |
Practice reading a sentence aloud, writing a dictated sentence, and answering basic questions in English |
The officer evaluates your English proficiency throughout the entire interview, not just during the formal test portion |
|
Sensitive History |
Discuss any criminal history, prior immigration violations, tax issues, or Selective Service questions with your attorney before the interview |
USCIS has access to your full background: surprises at the interview are far more damaging than disclosures made in advance |
|
Your Attorney |
Have your citizenship attorney present at the interview |
Your attorney can object to improper questions, clarify answers, and ensure the officer conducts the interview fairly and within scope |
|
After the Interview |
Know what the three possible outcomes are: approved, continued (additional information needed), or denied |
Understanding what comes next prevents panic and ensures you respond appropriately if the decision isn’t immediate |
What If Your Naturalization Application Is Denied?

A denial from USCIS is not the end of the process. You have meaningful legal options to challenge the decision.
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Request a Hearing
Under INA Section 336, you have 30 days from the date of denial to request an administrative hearing before a USCIS officer. This is a de novo review, meaning the officer will reconsider your entire application without deference to the original decision.
This hearing is an opportunity to contribute additional evidence, correct the record, and address whatever grounds USCIS cited in the denial notice. An immigration attorney plays a critical role in preparing for this hearing and presenting your case effectively.
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Appeal to a Federal District Court
If USCIS denies your application a second time after the administrative hearing, or if USCIS fails to make a determination on your hearing within 120 days, you have the right to petition a U.S. District Court to review your case under INA Section 310(c).
Federal court review is available in the district where you reside. This is a more involved legal process and almost always requires legal representation by a citizenship attorney with experience in federal immigration matters.
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Apply Again
A denial doesn’t bar a subsequent application at any point in the future, so if the appeals and hearing on your original application do not yield fruitful results, you still have the option to re-apply.
8 Questions People Ask Before Starting Their Naturalization Case

The naturalization process raises a lot of legitimate questions, and the answers are not always straightforward. Below are the ones our citizenship attorneys hear most often, along with honest, direct answers.
- Can I keep my original citizenship after naturalizing as a U.S. citizen?
The United States does not require you to renounce your prior nationality as a condition of naturalization, although the Oath of Allegiance does include language renouncing allegiance to foreign states. Whether you can hold dual citizenship depends entirely on the laws of your country of origin.
Many countries, including China, India, and others, have rules about whether their nationals can obtain citizenship of another country and retain their original citizenship. You should consult with the embassy or consulate of your home nation before naturalizing to ensure you are able to retain your original citizenship upon US naturalization.
- Will a criminal record disqualify me from naturalization?
It depends on the nature and timing of the offense. Certain crimes are permanent bars to naturalization, including murder and most aggravated felonies as defined under immigration law. Other offenses can be conditional bars or can affect the good moral character determination during the statutory period.
Even arrests that did not result in convictions are disclosed on the N-400 and reviewed by USCIS. Before filing, you should discuss your complete criminal history with a citizenship attorney who can assess how it affects your eligibility.
- What happens if I’ve spent significant time outside the U.S.?
Absences of six months or more during the statutory residency period raise a presumption that continuous residence has been broken. Absences of one year or more generally break continuous residence altogether.
Shorter trips are generally fine, but your physical presence calculation must still add up to at least 30 months out of five years (or 18 months out of three years for those married to U.S. citizens). Your citizenship attorney will review your complete travel history before filing.
- Can I travel outside the U.S. while my N-400 is pending?
Yes, but with caution. Short trips abroad while your application is pending are generally permissible, provided you do not take any trip that would break continuous residence.
You should carry your green card and be prepared to demonstrate your ties to the United States upon re-entry. Communicate with your attorney before any travel once your N-400 has been filed.
- What documents do I need to file my N-400?
Required documents typically include your green card (front and back copy), government-issued photo identification, marriage certificate, birth certificates of children, criminal dispositions, and any other evidence that might be unique to your case.
If you have a criminal history, you will need certified court dispositions. USCIS may also request additional evidence after filing through a Request for Evidence (RFE).
- How long does the naturalization process take from start to finish?
From filing to the Oath of Allegiance ceremony, the total process typically takes 8-12 months, though this varies considerably by field office.
After USCIS approves your application at the interview, the Oath Ceremony can be scheduled anywhere from a few days to several months later depending on the location.
- What happens to my green card once I become a citizen?
Your green card is no longer valid after you naturalize. You will surrender it at your Oath Ceremony. Once you receive your Certificate of Naturalization, you can apply for a U.S. passport using Form DS-11 at any passport acceptance facility.
- Do I really need a citizenship attorney to apply for naturalization?
You are not legally required to hire an attorney. Working with a citizenship attorney significantly reduces the risk of delays, RFEs, continued interviews, and denials.
For applicants with any complexity in their case, including criminal history, extended absences, prior immigration violations, tax issues, or uncertainty about eligibility, the value of legal help and representation is clear. The cost of an attorney is modest compared to the cost of a denial and the process of appealing it.
Becoming a Citizen Is the Final Step. We’ll Be With You Every Step of the Way.

Naturalization is a process that rewards careful preparation and penalizes avoidable mistakes. The attorneys at Lightman Law Firm are committed to making sure your case is prepared correctly, submitted on time, and supported by the evidence USCIS needs to approve it.
We treat every client with respect, keep you informed throughout the process, and are available when you have questions.
This is a milestone worth getting right. Don’t navigate your immigration needs alone.
Get justice and contact Lightman Law Firm today for trusted legal guidance with an experienced immigration lawyer.