The first AI paralegal for immigration law firms

Casework that moves itself, from first lead to filing-ready packet.

Lexfill runs your firm's back office around the clock — interviewing clients in their own language, filling the actual USCIS forms, reading documents, watching deadlines, opening the follow-ups — with every answer checked before it reaches you. You review, approve, and file.

No credit card neededPrivileged & encrypted
Application to Register Permanent Residence or Adjust Status
Department of Homeland Security · U.S. Citizenship and Immigration Services
USCISForm I-485OMB 1615-0023
Part 1. Information About You AUTO-FILLED
1.a. Family Name (Last Name)
Herrera Galván
1.b. Given Name (First Name)
Tomás
3. Date of Birth (mm/dd/yyyy)
03/14/1991
5. Country of Birth
Mexico
Part 3. Immigration History FILLING…
1. Date of Last Arrival (mm/dd/yyyy)
06/02/2018
2. Place of Last Arrival
El Paso, Texas
3. Class of Admission
B-2 Visitor
L
Lexfill intakeguiding Tomás
English
What date did you last arrive in the U.S., and on what visa?
June 2, 2018, on a tourist visa. I entered through El Paso.
Section 2 · 14 of 32
How it works

Three steps from invite to filing-ready.

You add a name and an email. Your client does the rest of the talking. Lexfill turns it into structured answers you can review and file.

01

Invite your client

Add a name and email; Lexfill sends a secure, single-use link — in their language, on their phone.

tomas.herrera@gmail.com
Send invitation
02

They tell their story

A calm, guided intake gathers everything, one plain-language question at a time. No legalese, no blank forms to fear.

When did you and Emily marry?
September 19, 2023
03

You review and file

Structured answers land in your console — mapped to the form, with overstays and red flags already surfaced.

Authorized stayOverstay
A-NumberVerified
Marriage dateVerified
Always on

The case is already worked when you open it.

Not a chatbot bolted on the side. Lexfill reads the documents and the answers the way a careful associate would — in the background, around the clock — and hands you the parts that need judgment.

Document intelligence

Upload a document, watch the case file build itself.

Clients drop in a passport or green card. Lexfill identifies each document, names it correctly, reads the details, and fills the client's profile — so no one on your team retypes a number from an ID again.

  • Names, dates, and A-numbers extracted automatically
  • Every field traced back to its source document
  • Nothing saves to the profile until you confirm it
green-card.jpg
Client profile
NameTomás Herrera
BornMar 14, 1991
CountryMexico
A-No.208-451-9
Review flags on forms

A second pair of eyes on every answer.

Before you open a questionnaire, Lexfill has already read it end to end and marked the answers that don't add up — in plain English, right where the answer lives. You decide what matters.

  • Inconsistent dates and conflicting answers surfaced inline
  • Explained in one sentence, not a confidence score
  • Clean answers stay quiet, so flags mean something
Immigration historyAI reviewed
Date of marriageSept 19, 2023
Date of last entryJune 2, 2015
This is three years before the I-94 arrival date on file (2018). Please confirm with the client.
Prior refusalsNone reported
Why Lexfill

Built for the realities of an immigration practice.

Getting complete, honest answers from a nervous client is only the beginning. Lexfill is designed around that — and around everything the case demands after it.

Speaks your client's language

The intake conversation runs in the client's first language and translates every answer back to English for your file.

EnglishEspañolTürkçeالعربية

Catches issues before you do

Overstays, prior arrests, eligibility gaps — Lexfill flags the things that change a case while the client is still answering.

Structured, form-ready

Answers map straight to I-130, I-485 and more — every field inline-editable, nothing retyped from a questionnaire.

Proof against the real form

Switch from the review summary to a page-by-page proof of the filled USCIS form, side by side with the source answers.

The console

A review surface that feels like a senior associate.

Every answer, organized by section, with confidence and flags in view. Edit inline, resolve flags, approve, and move on.

LexfillRReyes Immigration, PLLCDR
TH
Tomás Herrera Galván
Adjustment of Status · Marriage A 208 451 996 Forms I-130 + I-485
24 verified3 review2 flagged
01

Personal information

All verified
Full legal name
Tomás Herrera Galván
Date of birth
March 14, 1991
Country of birth
Mexico — Guadalajara
A-Number
A 208 451 996
02

Immigration history

1 flag
Most recent entry
June 2, 2018
Port of entry
El Paso, TX
Class of admission
B-2 · Visitor
Admitted until
Dec 1, 2018 Overstay
LexfillRReyes Immigration, PLLCDR
TH
Tomás Herrera Galván
Form I-485 · Application to Register Permanent Residence
Page 4 of 121 flag
Application to Register Permanent Residence or Adjust Status
Department of Homeland Security · U.S. Citizenship and Immigration Services
USCISForm I-485OMB 1615-0023
Part 1. Information About You AUTO-FILLED
1.a. Family Name (Last Name)
Herrera Galván
1.b. Given Name (First Name)
Tomás
3. Date of Birth (mm/dd/yyyy)
03/14/1991
5. Country of Birth
Mexico
7. Alien Registration Number (A-Number)
208-451-996
Part 3. Immigration History AUTO-FILLED
2. Date Authorized Stay Expired, from Form I-94 Overstay flagged
12/01/2018
Applicant is applying under INA Section 245(a)
Structured review — every answer organized by section, flags in view
One place

Run the whole client relationship in one place.

Billing, messages, and the client's branded portal live alongside the case — so the relationship doesn't scatter across your inbox and a payment app.

Invoicing & payments

Get paid without chasing clients.

Create an invoice from the console and send it in a click. Clients pay online by card or bank debit, and Lexfill sends a gentle reminder every three days until it's settled — so you're not the one following up.

  • Card and ACH bank payments, powered by Stripe
  • Automatic reminders every 3 days until paid
  • Payment status right on the client's file
Reminder sent · every 3 days
Reyes Immigration#INV-1042
Form I-485 preparation$1,200
USCIS filing fees$1,440
Total due$2,640
Pay invoice
CardBank
Secure messaging

No more case updates lost in email.

Every client has a private thread with your firm — questions, quick answers, and file attachments all in one place. When someone has an unread message, Lexfill nudges them by email, so nothing stalls waiting on a reply.

  • One thread per client, tied to the case
  • Send and receive file attachments securely
  • Smart email alerts only when there's something unread
Hi Daniela — I found my old pay stub. I've attached it here.
pay-stub-march.pdf240 KB
Perfect — that was the last thing we needed to file. Thank you, Tomás.
New message from TomásEmailed to you · 2 minutes ago
Casework

Built for how immigration cases actually move.

The small, repetitive things that decide whether a filing goes out clean and on time — verifying documents, tracking dates, chasing follow-ups — carried by the system, not in anyone's head.

Document review

Every document verified before it hits the filing.

Approve or reject each uploaded document with a reason. The client is notified instantly and re-uploads in one click — so a blurry passport photo gets fixed now, not in an RFE months later.

  • Approve or reject with a plain-language reason
  • Clients re-upload in a single tap
  • A clear record of what's been checked
passport-photo.jpg Approved
Verified by D. Reyes · Apr 3
i-94-record.pdf Needs re-upload
The scan is cut off at the bottom — please re-upload the full page.
ApproveReject
Client re-uploaded · 1 tap
Deadline calendar

Never miss a filing date.

One calendar across the whole firm shows every case deadline, task, and invoice due date side by side. The dates live here — not in the back of your mind at dinner.

  • Filing deadlines, tasks, and invoices in one view
  • Firm-wide, across every attorney and client
May 2026
SMTWTFS
26
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Filing deadlineTask dueInvoice due
Tasks

Every follow-up on the board, not in your head.

One shared task board for the whole firm, with every to-do tied to its client. And when the AI review flags something that needs a human, it opens the task itself — so “confirm that entry date” never lives on a sticky note again.

  • List or drag-and-drop board — one view for the firm
  • Review flags become tasks automatically
  • Due dates land on the firm calendar
Task created from a review flag
To do3
Confirm date of last entry with client
DRTomás HerreraJul 21
Request updated pay stub
MATomás HerreraJul 28
In progress2
Draft I-485 cover letter
DRTomás HerreraJul 24
Translate birth certificate
MAY. Demir
Multilingual intake

Clients answer in their language; you work in yours.

The intake runs in English, Spanish, Turkish, or Arabic — with full right-to-left support — so clients answer comfortably in their own words. Every answer arrives in your console in English.

  • English, Español, Türkçe, and العربية
  • Right-to-left layout, done properly
  • You always review in English
EnglishEspañolTürkçeالعربية
يراه العميل · العربية
متى كانت آخر مرة دخلت فيها إلى الولايات المتحدة؟
You see
Your console · English
When did you last enter the United States?
Integrations

Bring your practice with you.

Lexfill fits the tools your firm already runs on — and getting your existing clients in is our job, not yours.

Already on Clio? Migrate in a click.

Connect your Clio account and your contacts and matters import straight into Lexfill — clients, case types, and details mapped for you. When the casework is done, push it back.

  • One-click import of contacts and matters
  • Push completed casework back to Clio
  • Open a client's Lexfill file from inside Clio
Any other vendor

On a different vendor? We migrate you for free.

MyCase, PracticePanther, Smokeball, spreadsheets — wherever your client list lives today, our team moves it into Lexfill for you, at no cost. Most firms are fully migrated within a few days.

Talk to us about your migration
Trust & security

Privileged by default.

Your clients share their most sensitive history with Lexfill. We treat it the way you do.

SOC 2 Type II (in progress)

Independently audited controls across security, availability, and confidentiality.

Encrypted end to end

Every answer is encrypted in transit and at rest. Single-use intake links, scoped to one client.

You stay in control

Nothing is filed automatically. Lexfill prepares; the attorney reviews, edits, and approves every record.

Pricing

Start free. Pay when you're ready.

Create an account and run your first 3 cases free — no credit card required. Every account includes the whole back office: AI intake, document intelligence, autonomous review, deadlines, and tasks. For full pricing tailored to your firm, reach out to us.

Full access
Ready for more than 3 cases? We'll put together pricing that fits your team and case volume.
Let's talk
Tailored to your team & volume
  • Everything in Start free, plus
  • Unlimitedcases & team members
  • Volume pricing for your firm
  • SSO / SAML& audit logs
  • Dedicated onboarding & success manager
  • API & case-management integrations
  • 99.9% uptime SLA
From the firms

What attorneys are saying.

Lexfill drafts the forms and documents and catches inconsistencies across them, then we review and file. That's the right way to use AI in a law firm. Plus the whole platform is genuinely built for immigration attorneys, everything in one place.
SS
Sinan SarıFounding Attorney, Yellow Law Group
5 offices5,000+ clients
I couldn't believe what Lexfill was capable of the first time I saw it. Lex is the best hire we've made — a powerful teammate that just gets things done.
RH
Ryan HafeyPartner, Hafey & Karim
I run a solo practice, and I tried just about every software on the market before choosing Lexfill. Best decision I've made for my firm. It saves me hours every week, and the Lexfill team actually picks up when I need help.
EN
Esma NacakSolo Practitioner, ENG LAW FIRM PC
Free for your first 3 matters

Build a practice that doesn't follow you home.

Create your firm workspace in minutes and put the back office to work today. No credit card needed.

Create an account