With the estate's legal documents, the executor's or notary's distribution record, the bank transfers from the estate to the investor, and evidence of how the deceased lawfully acquired the assets. Foreign-language documents need certified translations, and any currency conversion should be shown with both sides' statements.
The lawful-source test reaches back through the estate
USCIS requires evidence that the capital was obtained through lawful means and evidence of the path it followed to the enterprise. For inherited funds both requirements apply to the estate. Hypothetical example: a Sainte-Brigitte-de-Laval physiotherapist inherits a share of a relative's estate in another country, receives it by international wire, and intends to use it toward the investment.
The file should include the death certificate, the will or intestacy order, the probate or notarial document appointing the executor, the estate inventory listing the assets, the distribution statement showing the physiotherapist's share, and the wire records from the estate account to her Canadian account, with the exchange-rate confirmation. Because lawful source looks at origin, add what can reasonably be obtained about the deceased's assets: property deeds with purchase dates, long-standing account statements, or business records. Translate everything not in English with a certified translation.
Then show the path forward: statements for every account the funds passed through in Canada, and the final wire to the escrow or enterprise account.