This column discusses the recent Illinois Supreme Court opinion of Blumenthal v. Brewer, which re-examined 37-year-old precedent.In Blumenthal, 2016 IL 118781 (Ill. 2016), the court was called on to consider the continued viability and applicability of Hewitt v. Hewitt, 77 Ill.2d 49, 394 N.E.2d 1204, 31 Ill.Dec. 827 (1979). Hewitt held that Illinois public policy, as set forth in the statutory prohibition against common law marriage, precludes unmarried cohabitants from bringing claims against one another to enforce mutual …