Keep the relevant documents establishing the actual distribution and the transactions connecting it to the proposed gift, then supply the material requested by the official process.
Distinguish entitlement, authorization and receipt
Do not replace the actual chronology with one approximate date. If the money remains in an estate account or a condition is unresolved, describe that fact accurately rather than presenting a completed personal transfer.
The official page describes an application, a processing fee, a vetting stage and then the gift, followed by the immigrant-visa or adjustment steps. The practical discipline is simple: open the official page, note the date on which it was read, and keep a copy of what it said that day alongside the file. Only after successful vetting is the US$1 million gift requested. Keep every receipt and every version of the official page consulted, dated. A consultant invoice or reimbursement promise is not a government receipt. A common mistake is allowing the sponsor’s accounting entry to stand in for government proof of receipt. Keep the broker's written proposal too; if its promises differ from the official text, that difference is worth knowing before the fee is paid.