Prohibits certain third-party property tax appeals.

This bill prohibits property taxpayers from appealing assessments or exemptions related to financial agreements between other taxpayers and local governments (such as tax abatements). It restricts appeals to only a taxpayer's own property, ending the ability to challenge assessments on neighboring properties or those tied to specific agreements. The bill does not affect local governments' right to appeal assessments on any property. Key changes include banning third-party appeals under the "Long Term Tax Exemption Law" and limiting appeals to one's own property valuation. This aims to reduce costly, complex appeals that create uncertainty in local government budgets.