Start the corporate-records work as soon as the transfer is a serious plan, well before a start date is discussed. Locating registers, correcting outdated filings and confirming that both entities are actively trading regularly takes longer than anyone expects.
The paperwork you cannot rush is the paperwork somebody else holds
Every part of this file depends on a third party: an accountant who has other clients, a corporate registry with its own processing times, a bank that must produce statements, a landlord who must confirm a lease. None of those speed up because a start date has been announced. Set the sequence in that order — records first, petition second, travel last — and treat the qualifying-year evidence as something to assemble now rather than at filing, since it concerns a period that is already closed and can only get harder to document. If the American company is under pressure to fill the role quickly, say plainly that the corporate evidence sets the pace, so that the business plans around a realistic date rather than around an optimistic one that then slips.
Hypothetical example: Ibrahim, a furniture-import company president, plans a transfer after a share sale that has not yet closed. His calendar should place the executed closing and updated ownership records before the petition so the qualifying relationship exists and can be proved at filing. It should also reserve time for evidence of one continuous qualifying year abroad and for a U.S. duty plan showing primarily managerial or executive work. Prior L admissions belong on the timeline because L-1A has a seven-year maximum. A proposed closing date or common branding cannot substitute for the corporate relationship, and travel should not be used to begin work while that threshold remains unresolved.