Generally no. What counts is capital actually invested or irrevocably committed and placed at risk. A right to receive money later is an asset, not invested capital.
Separate the balance sheet from the investment
It helps to think of two different statements. One describes what the investor is worth, and future instalments belong there. The other describes what has been put into the enterprise and exposed to loss, and only received funds that have been placed into the business belong there. EB-5 is concerned with the second. If the received portion is below the qualifying amount, the practical routes are to defer the filing until enough has been received, or to raise the balance from another lawful source with its own documented origin, including personally secured borrowing where the investor is personally liable. Each option adds documentation. None of them is served by presenting the contract total as though it were cash, which invites a request for evidence that is difficult to answer.
Hypothetical example: a wind-turbine parts entrepreneur wants to use sale proceeds for an EB-5 investment but has merged the proceeds with other family savings. Begin with a transaction map that follows each dollar from the sale, through accounts, into the commercial enterprise. The first review should identify missing contracts, tax records, bank statements and explanations for transfers between relatives. It must also test whether the selected structure can create the required jobs and keep the capital exposed to loss. Approval of an investor petition is not itself permanent residence; the later immigration steps and conditional-residence obligations need their own planning.