Authorizing the Mayor and City Council of Baltimore City or the governing body of a county to establish, by law, a subclass of real property consisting of vacant lots or improved property cited as vacant and unfit for habitation or other authorized use on a housing or building violation notice and to set a special property tax rate for certain vacant lots or improved property cited as vacant and unfit for habitation or other authorized use; and applying the Act to all taxable years beginning after June 30, 2024.