End-Client Letters and Itineraries: H-1B Documentation Guide

Petitions for consultants placed at client sites live or die on paperwork. Here is what an end-client letter, itinerary, and SOW actually need to say — and who should be signing them.

Consultant at a desk at night reviewing an end-client letter and statement of work for an H-1B petition

If you work as a consultant at a client site rather than at your petitioning employer's own office, your immigration paperwork carries a heavier documentation burden than a direct-hire case. That is not a rumor from a forum thread — it is a practical reality of how USCIS and the Department of Labor evaluate third-party placements, and it shows up every time a petition, extension, or amendment is filed on your behalf.

This is general information, not legal advice. Immigration rules change and outcomes depend on your individual circumstances. Confirm anything that affects your case with a licensed immigration attorney.

Talk to a real recruiter, not a bot.

We'll tell you the rate, the client, and the terms before you interview. And if we're not the right fit, we'll say so.

Message us on WhatsApp Browse open roles

Back to all insights

Equal opportunity. Josh Pros LLC is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, protected veteran status, citizenship status, or immigration status, consistent with Title VII, the Immigration and Nationality Act (8 U.S.C. §1324b), and applicable state and local law.

Information on this website about work authorization and immigration is general information, not legal advice. Confirm your individual situation with a licensed immigration attorney.