Research hub

Visas

Research H-1B, L-1, O-1, TN, K-1, student, visitor, and consular visa questions before contacting an immigration lawyer.

Choose a specific topic

H-1B Immigration Lawyer Guide

This guide focuses on specialty occupation petitions, lottery timing, RFEs, amendments, transfers, and employer sponsorship.

Open guide

K-1 Fiance Visa Lawyer Guide

This guide focuses on fiance visa petitions, consular interviews, relationship evidence, and adjustment after entry.

Open guide

L-1 Visa Lawyer Guide

This guide focuses on intracompany transfers, executive or specialized knowledge evidence, new office petitions, and RFEs.

Open guide

O-1 Visa Lawyer Guide

This guide focuses on extraordinary ability evidence, advisory opinions, contracts, itineraries, and USCIS petition strategy.

Open guide

TN Visa Lawyer Guide

This guide focuses on Canadian and Mexican professional categories, border or consular processing, and employer letters.

Open guide

Next step for readers

  • Find the agency document in front of you.
  • Open the matching form, problem, city, or checklist page.
  • Confirm current instructions through an official government source.
  • Use a licensed attorney or accredited representative for fact-specific advice.

What not to assume

  • A page about one form does not mean that form is right for every reader.
  • A city page does not mean the site endorses a specific local lawyer.
  • Processing-time examples are not promises.
  • Official instructions and personal facts control the final strategy.