Collect the acquisition or merger announcement, an updated organizational chart, any new employment agreement or offer letter, and a written description of your current duties from your direct supervisor. Keep the original TN support letter for comparison rather than discarding it.
Build a before-and-after employment record
Request that the acquiring company's HR or immigration counsel confirm in writing which entity is now your legal employer and whether your job description has changed. Retain payroll records showing any change in the employer name issuing your pay. Do not assume informal continuity language in an internal memo substitutes for a specific, accurate description usable in an immigration filing.
Create two folders: qualification evidence and employment evidence. Put passport or citizenship proof, credential records, and any required occupational authorization in the first. Put the signed offer, detailed employer letter, organizational contact information, work location, compensation terms, and duty breakdown in the second. The review should identify which document proves each material statement, rather than asking a single letter to do everything. Hypothetical example: A museum conservator has a master’s degree, but the employer’s draft letter calls the assignment “collections support” without explaining examinations, treatment plans, or professional judgment. Her diploma establishes education, while a revised duty description must establish what she will actually do. Obtain original or official copies where possible, translations where needed, and a clear explanation of a name change if records differ. Keep a final dated set matching the facts presented during border inspection or in a USCIS filing.