Identify the intended applicant, whether the proposal is corporate, the payments covered and any conditions on the employer’s promise.
Compare the promise with the official stages
Separate processing, instructed gift, family amounts and continuing corporate obligations. Retain the actual written clarification rather than relying on a conversation summary. The employer’s record explains who expects to pay; follow government instructions for the application evidence and recipients rather than treating that record as the official process.
Identity and civil documents for every intended applicant, a complete personal history for vetting, evidence supporting whichever underlying immigrant classification is contemplated, and documentation of the funds. The official source describes further USCIS instructions being issued after an initial payment step, so confirm the current version before assuming another applicant's checklist applies unchanged. A dated copy of the official program page and FAQ, written identification of the official payment channel, the intermediary's authority and refund terms in writing, and confirmation of what immigration status the program grants and to whom. Save the dated official terms, payment instructions, receipts, identity documents, civil records, and source-of-funds material, then obtain advice on what any linked immigration filing additionally needs.