Prohibiting, for a taxable year beginning after June 30, 2025, but before July 1, 2027, an increase of the assessed value of residential real property in Baltimore County except under certain circumstances; requiring the State Department of Assessments and Taxation to retain an independent third party to study and make certain recommendations regarding the residential real property assessment practices and methodology of the Department; requiring the Department to report, on or before December 1, 2026, the results of the study; etc.