Regional-center administrative fees, the USCIS petition fee under the fee schedule, later the I-829 fee, immigrant visa or adjustment costs and professional fees. The investment threshold is separate from all of these.
The threshold is the floor, not the total
Hypothetical example: a Quispamsis dentist budgets exactly the reduced US$800,000 amount from her practice sale and is surprised by the additional figures in the subscription documents. Regional-center projects often charge an administrative fee on top of the capital contribution; that fee is not part of the qualifying investment, and its refundability depends on the offering and subscription documents. The petition fee for Form I-526E and the later Form I-829 fee are set by the USCIS fee schedule, Form G-1055, and should be checked at filing.
Consular immigrant-visa processing or adjustment of status carries its own fees, and medical examinations and translations add cost. Professional fees for source-of-funds work are often significant because of the volume of historical records. She should confirm which amounts are refundable if the petition is denied and which are not, and keep those payments in separate, documented transfers from the capital itself.