Five years of addresses, trips, jobs, and taxes — the N-400 is a memory test disguised as a form. Lexfill walks your client through it step by step, keeps the dates consistent, and hands you a filled application ready to review.
Clients don't fail the N-400 on eligibility — they fail it on recall. Lexfill breaks the history into small questions, keeps a running timeline, and flags what doesn't add up.
Addresses, employment, trips abroad, marital history — one plain question at a time, with the client pausing to check a passport stamp and resuming from the same link. The eligibility basis stays attorney-side.
The green card, travel records, tax transcripts, and — for the 3-year rule — the marriage documents land on one checklist. Lexfill identifies each upload and reads the key details into the record.
When the intake completes, the N-400 is a filled, review-ready PDF — the five-year history landed consistently across every part, with the attorney-side sections handled in your console.
Lexfill reads the whole timeline together and flags what doesn't reconcile — a trip whose return precedes its departure, residence gaps, totals that don't match — in plain English before the interview does.
Form N-400, Application for Naturalization, is how a lawful permanent resident applies for U.S. citizenship — generally after 5 years as a resident, or 3 years when married to a U.S. citizen. Lexfill guides the applicant through the whole form and fills it for attorney review.
The core item is a copy of the green card (both sides). Depending on the case: travel records, IRS tax transcripts, the marriage certificate and proof of the spouse's citizenship for the 3-year rule, name-change documents, and court records if any. Lexfill's checklist covers them all.
As a timeline, not a table. The intake asks for addresses, jobs, and trips one at a time and keeps a running record; the AI review then cross-checks it — impossible date orders, gaps, and totals — and flags issues in plain English before you review.
The intake itself runs in English, Spanish, Turkish, Arabic, or Chinese, and answers arrive in your console in English. (The naturalization English requirement applies to the USCIS interview, not to how your client completes intake — exemptions are the attorney's call.)
No. Lexfill prepares the record — intake, documents, filled N-400, and flags. The attorney reviews, edits, approves, and files everything.
Yes. Lexfill integrates with Clio directly: connect your account, import your contacts and matters in a click, and push completed work back to Clio when you're done. On a different vendor? We'll do your migration for free — our team moves your clients and matters into Lexfill for you, usually within a few days.
The same guided intake, document intelligence, and review flags — tuned to each case type you handle.
Create your firm workspace, send the naturalization intake, and review a filled N-400 with the timeline checked.