A support letter, proof of citizenship, credentials, and evidence matching the listed profession are central. Add contracts or assignments when they clarify the U.S. work and employer relationship.
Use records that describe the real position
The support letter should identify the professional, state the precise position, summarize duties, establish the anticipated period of need, and explain remuneration. Pair it with diploma records, transcripts, licences when required, and an evaluation if a foreign credential needs comparison. Do not rely on a résumé alone to prove a degree or on a generic offer to prove detailed duties.
Consistency between the employer letter and any customer-facing contract is especially valuable for a consulting assignment. Build the record from contemporary, verifiable documents rather than a summary written for the filing alone. Names, dates, ownership percentages, duties, payment trails, and addresses should be capable of being reconciled across the file.
Where a document requires explanation, provide a direct explanation and keep the underlying record available. Translation, credential evaluation, or professional evidence may be needed depending on the particular category. Keep a contemporaneous record of the decision and the facts used to reach it.
When a document is unavailable, identify the reason and consider whether another primary record can establish the point without creating a contradiction. A later change in role, ownership, family circumstances, or planned activity may require a fresh review. Clear disclosure is more useful than an attempt to make facts appear simpler than they are.