Use the actual immigrant admission or adjustment approval establishing conditional residence. Investment receipts and project correspondence serve different purposes.
Keep the evidence by event
Record petition, visa and admission information accurately. Do not select a convenient payment or travel date as the residence anniversary.
The purchase agreement, the closing statement of adjustments, the professional corporation's bank statements receiving the funds, the corporate record authorizing payment to the owners, personal bank statements receiving it, tax filings covering each step, and the escrow wire confirmation. With the instrument that created the entitlement, the payer's statements for the whole period relied on, the tax returns reporting the income, and an unbroken bank record carrying each payment from receipt through to the enterprise. A simple running file — annual financial statements, quarterly project reports, payroll summaries, evidence of any capital movement — turns the eventual filing into a summary exercise. Depending on the facts, that can include deeds, probate or gift papers, purchase financing, tax records, loan discharges, sale agreements, closing statements, co-owner distributions, bank statements, conversion receipts, and investment confirmations. Build a chronological funds record from original acquisition to the enterprise investment, preserving tax records, sale agreements, employment records, gifts, loans, bank statements, and transfer confirmations as applicable.