Do not assume permission automatically extends to every group entity. Assess the actual employer change and applicable process before relying on the work.
Use legal entities accurately
A shared logo is not unrestricted employment authorization.
Tell the employer early that the letter needs to describe actual duties, so the revision happens alongside other onboarding steps rather than at the last moment. Build a dated review file around the intended start date, current authorization record, employer changes, travel plan, and any I-129 filing evidence. Coordinate the employer’s schedule with the permitted activity and completed immigration steps, and avoid relying on a recruiter’s informal assurance about entry. Create a dated authorization plan showing the earliest document-ready date, requested classification step, admission or petition decision, first paid duty and any later project change. Sequence the analysis before the first productive US workday: identify the professional category, assemble the employer record, choose the appropriate entry or petition route, and obtain the required permission. The admission or petition decision is made at the time of the actual request, and a weather- or season-dependent business deadline does not shorten or bypass that process.