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Lexfill is an AI paralegal for immigration attorneys, called Lex, with a complete practice management system built around it. Lex works your caseload the way a paralegal would. It reads the file, fills the forms, reviews the answers, drafts the letters and pleadings, chases the missing documents, and assembles the filing packet. You review the exceptions and sign off.
You work with Lex. It brings you the filled form, the drafted letter, the assembled packet, the message ready to go — and you review it, adjust what needs adjusting, and sign off. Every filing, and every word that reaches a client, goes out on your say.

What Lex does

Answers from your own records

Ask about a client, a deadline, or the state of a matter in plain language. Lex reads the actual file — forms, documents, tasks, invoices — before it answers.

Drafts documents and pleadings

Support letters, client letters, memos, federal mandamus complaints and § 2241 habeas petitions — drafted from the record, opened beside the conversation for you to edit.

Reviews the case before you file

A cross-form consistency pass on every completed intake: contradictions, impossible dates, mismatched histories — each raised as a comment pinned to the exact question, with a task for what needs work.

Assembles the filing packet

One merged, stamped PDF in your firm’s packet order, with a drafted cover letter, a table of contents, and a QA cross-check that tells you what still needs your judgment.

And the practice it runs

Lex works inside a full system of record, so it always has something real to read:
  • Leads and consultations — a public lead form, a pipeline, a booking page that takes payment, and one-click conversion into a client.
  • Clients and intakes — guided, form-aware questionnaires in the client’s own language, or an import that builds the client from documents you already hold.
  • Forms and documents — thirteen USCIS forms, a document checklist per case type, AI document reading, and certified translations.
  • Government tracking — USCIS receipt status, immigration-court hearing changes, and FOIA requests.
  • The firm’s work — tasks, a firm-wide calendar, client messaging, invoicing, and a library of case and packet templates you can tailor.

How a matter runs

1

A client arrives

From your lead form, a booked consultation, a manual entry, or an import of a matter you already have.
2

The record fills itself

The client answers a guided questionnaire in their own language and uploads documents — or Lex reads the documents you upload and fills the record from them. Answers map onto the right USCIS fields automatically.
3

Lex reviews and drafts

Lex checks the case for contradictions, drafts what needs drafting, and assembles the filing packet.
4

You review and sign off

You work the findings, approve the documents, and file — the judgment calls stay yours.

Start here

Quickstart

Set up your firm and put Lex to work in an afternoon.

Working with Lex

The Desk, slash-command skills, drafts, and what Lex can and can’t do.

Clients & intakes

Guided questionnaires, multi-language intake, and importing existing matters.

AI review

The pre-filing consistency pass, and how findings reach you.

Filing packets

Assembly, findings, and your firm’s packet template.

Leads

A public capture form, a pipeline, and one-click conversion.