Two streams run in parallel. Officially, supporting documents are filed with Form I-140G through the portal once USCIS issues instructions, with further requests possible later. Internally, the company needs a written sponsorship agreement, evidence of its approval decision, and clarity on which entity makes the payments. Keep the two sets consistent with each other.
Name one owner inside the company
Corporate cases stall when nobody owns them. Assign a single person responsible for the portal submissions, the payment instructions, and the employee's document collection, with a named deputy for absences. Agree how the company handles the employee's personal information, since much of what must be filed is private rather than corporate.
Record decisions in one place so a later question about who authorised a payment has a documented answer. Add one governance decision to that ownership arrangement: agree in advance what the company does if it learns something about the employee that the employee has not disclosed to it. A process of this kind requires personal history that an employer would not ordinarily see, and a company that has not decided how such information is handled will decide it badly, under pressure, in a way that may be difficult for both sides.
Set out who inside the company may see what, how long it is retained, and what happens to it if the employee leaves. Hypothetical example: an employer sponsoring a distributed systems architect agrees at the outset that document collection sits with an external adviser rather than with the internal team, and that only a completion status is reported inside the company, which keeps the arrangement workable regardless of what the documents contain.