765 ILCS 160/1-65
A management company holding reserve funds of an association shall at all times maintain a separate account for each association, unless by contract the board of managers of the association authorizes a management company to maintain association reserves in a single account with other associations for investment purposes. With the consent of the board of managers of the association, the management company may hold all operating funds of associations which it manages in a single operating account, but shall at all times maintain records identifying all moneys of each association in such operating account. Such operating and reserve funds held by the management company for the association shall not be subject to attachment by any creditor of the management company. A management company that provides common interest community association management services for more than one common interest community association shall maintain separate, segregated accounts for each common interest community association. The funds shall not, in any event, be commingled with funds of the management company, the firm of the management company, or any other common interest community association. The maintenance of these accounts shall be custodial, and the accounts shall be in the name of the respective common interest community association.
765 ILCS 160/1-65