In broad terms, that the investment was made and maintained as required and that the qualifying full-time jobs exist or will exist as the applicable rules allow. The evidence is factual and specific to the enterprise, so it must be gathered as events occur. Confirm the precise proof required for this structure with counsel well before filing.
Ask for the evidence list at the start, not the end
Request a written list of the documents counsel expects to submit, then map each item to whoever can produce it: the sponsor, the business, an accountant, or the investor personally. Review the map every few months and mark what has actually arrived. Gaps found eighteen months early can usually be filled; the same gaps found six weeks before a deadline often cannot. Keep the list current as the project develops.
The investor must be engaged in management or policy formulation, and the rights of a limited partner under a properly drafted partnership agreement are treated as sufficient; a purely passive silent investment is not. Where a broker's memorandum shows jobs the business will create after your capital arrives, treat those as projections that need a documented basis, a hiring plan, funded budget lines, and a timeline your counsel considers supportable on this file.