Ill. Admin. Code tit. 44, § 40.570
b) The ownership shall be real, substantial and continuing and not simply a matter of form. "Real" is a bona fide investment in the business done at arm's length and in good faith. "Substantial" is the level of investment necessary to initiate or acquire the particular business in light of its value, the business field, the organization of the concern, and the potential sources of outside financing. The following factors, among others, are weighed together to help determine whether ownership is real, substantial, continuing and not a matter of form.
B) A promise or agreement to contribute capital;
A) Minimal cash outlay or personal investment;
C) Stock issued, but not purchased;
F) Buy-out-right agreements.
(Recodified from Section 20.570 of 44 Ill. Adm. Code 20 (Central Management Services) pursuant to Section 45-57 of the Illinois Procurement Code [30 ILCS 500/45-57], at 47 Ill. Reg. 12484)