Work permit · F-1 OPT (c)(3)(B)

OPT work permits, without the back-and-forth.

OPT filings are simple until a date is wrong. Lexfill walks the student through the I-765, collects the DSO-endorsed I-20 and supporting documents, and checks the windows — so the application goes out right inside the deadline.

Form I-765, category (c)(3)(B)I-20 & SEVIS details captured
Document checklist · F-1 OPT
Collected 3 of 4 — client re-uploads in one tap
I-20 with DSO recommendationapproved
Passportapproved
Form I-94 recorduploaded
Passport-style photowaiting
What Lexfill prepares

Everything an OPT application files.

Form I-765Application for Employment Authorization
Document checklistI-20, passport, I-94, photo
Guided intakeSEVIS & program details
AI reviewFiling windows checked
Built for OPT

Student-proof intake, deadline-proof filing.

Students answer fast and make small mistakes — a swapped date, a stale I-20. Lexfill structures the intake and cross-checks the record so the small mistakes never reach USCIS.

Guided intake

Your client answers one plain question at a time.

The student answers one plain question at a time — program, SEVIS number, requested employment dates — on their phone, in minutes. The OPT pathway asks exactly what the (c)(3)(B) category needs.

  • An OPT-specific pathway, SEVIS details included
  • Runs in English, Spanish, Turkish, Arabic, or Chinese — RTL included
L
Lexfill intakeguiding Chen
English
What is your SEVIS number? It starts with N and is on your I-20.
N0012345678
Student status · 9 of 19
Document intelligence

Upload a document, watch the case file build itself.

The DSO-endorsed I-20 is the heart of the filing. Lexfill collects it with the passport, I-94, and photo, reads the program dates and SEVIS number, and the attorney verifies each document before it counts.

  • Program dates and SEVIS numbers extracted automatically
  • Approve or reject each document; students re-upload in one tap
  • Nothing saves to the profile until you confirm it
passport-scan.jpg
Client profile
NameTomás Herrera
BornMar 14, 1991
CountryMexico
PassportG4589
Auto-filled forms

Review-ready PDFs, filled straight from the answers.

The finished I-765 is a filled, review-ready PDF with the student's details landed from the intake and the I-20 — proofed page by page before it ships.

  • Eligibility category stays attorney-side
  • Every field inline-editable before filing
  • Page-by-page proof of the real USCIS form
Filled from the intake
Form I-765 · ready to proof
Applicant informationfilled
SEVIS & program detailsfrom I-20
Eligibility categoryattorney-set
Page-by-page proofside by side
Review flags

A second pair of eyes before it goes out the door.

Lexfill cross-checks the requested employment dates against the I-20's program end date and the record's other dates, and flags anything off — in plain English, while there's still time to fix it.

  • Dates checked against the I-20 and I-94
  • Explained in a sentence, not a score
OPT applicationAI reviewed
SEVIS numberN0012345678
Requested start dateSept 15, 2026
This falls outside the 60-day window after the program end date on the I-20 (June 30, 2026). Confirm the dates.
DSO recommendationOn file
OPT questions

F-1 OPT filing, answered.

What is the post-completion OPT work permit?

F-1 students may apply for post-completion Optional Practical Training work authorization under category (c)(3)(B) by filing Form I-765 with a DSO-endorsed Form I-20. Lexfill runs an OPT-specific intake and fills the I-765 for attorney review.

What documents does an OPT application need?

Lexfill's checklist covers the I-20 with the DSO's OPT recommendation, passport, Form I-94 record, a passport-style photo, and — where applicable — the F-1 visa stamp and any prior EAD. Each upload is AI-identified and attorney-verified.

Does Lexfill check the OPT filing windows?

Lexfill flags date signals it can read from the record — like a requested start date that falls outside the post-completion window on the I-20 — in plain English for the attorney to confirm. The attorney always makes the timing call.

How long does the intake take?

Most students finish in one sitting — the OPT pathway is short and every question is plain-language. They can pause and resume from the same link anytime.

Does Lexfill give legal advice?

No. Lexfill prepares the record — intake, documents, filled I-765, and flags. The attorney reviews, edits, approves, and files everything.

Can we switch to Lexfill from Clio or another practice management tool?

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.

Free for your first 3 matters

Prepare your next OPT filing with less friction.

Create your firm workspace, send the OPT intake, and review a filled I-765 with the windows checked.

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