Thirty-seven years ago, the Illinois Supreme Court held in Hewitt v. Hewitt, 77 Ill. 2d 49 (1979), that unmarried cohabitants cannot bring claims against each other to enforce mutual property rights because allowing such recovery would violate Illinois’ statutory prohibition against common law marriage.Despite dramatic changes in society and the law, the Illinois Marriage and Dissolution of Marriage Act still states that common law marriages are invalid. 750 ILCS 5/214 (West 2016).Consequently, our Supreme Court …