Assemble the identity, civil and immigration-history records requested by the current official application and Form I-140G. Liquidity records may help household planning, but the official Gold Card material should not be described as imposing EB-5's lawful-source-and-path evidentiary rule unless the current instructions expressly require it.
Identity, history, liquidity
Begin with passports, birth and marriage certificates, and the current official instructions for every family member to be included. Add a complete and accurate history of previous U.S. applications, admissions, refusals and any period of overstay because eligibility, vetting and admissibility turn on the applicant's actual record. Follow the official application and Form I-140G for the required financial material rather than importing EB-5's lawful-source-and-path test. For private household planning, separately identify whether expected business-sale proceeds, notes, retirement funds or property are actually liquid and when they can be used; do not present that planning exercise as an official Gold Card evidentiary condition. Keep a dated copy of the official program material relied on because its terms can change.
Hypothetical example: a silk-screen printing studio owner relies on a broker's emailed summary while preparing to sell investments for the payment. The first review should preserve the current official page, payment instructions, passport, civil records, prior immigration history, eligibility evidence, and the source-of-funds trail. Official material settles program terms; bank and sale records settle money movement. Save documents before the transaction. The usual error is retaining only an intermediary's description, which cannot prove what the government required on the decision date or that the applicant paid the U.S. government directly.