Since June 1979, when the Ohio Supreme Court declared Ohio's finance system constitutional, that system has continued to deteriorate, as evidenced by the number of districts borrowing from the school loan fund. Moreover, the supreme courts of four other states have recently declared their state financing systems unconstitutional. This paper reviews literature and case law relevant to school finance issues and analyzes Ohio's finance system to determine if there are sufficient grounds to question its constitutionality. Based on the case law summary, the unconstitutionality odds have improved significantly. The ensuing examination of disparities in school district expenditures, tax rates, teacher salaries, curricula, facilities, services, and the funding structure itself leads to the same conclusion. Since there is little doubt that Ohio's financing system is unconstitutional, the big question is whether the Ohio Supreme Court will hide behind the "Rodriguez v. San Antonio Independent School District" decision, as it did in "Cincinnati v. Walter" in 1979. Ohio's legislators are urged to change the present educational finance system in the interest of students. (23 references; 10 bar graphs) (MLH)