Currently, Illinois is one of the eight states that allows for the formation of this unique type of limited liability company, known as a Series Limited Liability Company. A series limited liability company may hold separate sets of assets and separate lines of business in separate series, and each of these series should, although not significantly tested in the courts of law, be statutorily immune from claims against any other series.
The organization of series limited liability company in Illinois is authorized under the Limited Liability Company Act 805 ILCS 180/37-40. An Illinois series LLC is a single legal business entity that permits the partitioning of assets and liabilities among the various series. When all requirements are met, or unless otherwise provided for by the Act, the debts, liabilities and obligations incurred or contracted for, with respect to a particular series, shall be enforceable against the assets of that series only, and not against the assets of the entire limited liability company in general or any of the series within that limited liability company.