Keep the historical legal entity names, dates and the records explaining each change. Identify which entity actually employed the applicant during each period rather than describing the whole history under the current company name.
Make the chronology traceable to real documents
Attach the corporate filings or agreements behind each transition and flag any gap or inconsistency rather than smoothing it over. A change in branding is not the same fact as a change in legal employer, and the reviewer needs to see which one actually happened and when.
Organize the file around propositions a reviewer can test: entity relationship, foreign employment dates, foreign duties, U.S. duties, and the resources supporting the proposed role. Reconcile corporate names, ownership percentages, payroll dates, and job descriptions before filing. Hypothetical example: a biomedical-supply company calls an employee its president in one corporate record but pays the employee as a sales representative in another. The company should explain the true role with contemporaneous records instead of hoping a title will control. The transferee needs one continuous qualifying year abroad during the preceding three years; L-1A status is not indefinite and has a seven-year maximum.
A dated reconciliation note can identify the source record chosen for every discrepancy.