Pick your poison
The General Assembly is considering a referendum that would ask Pa. voters to approve hikes in state sales and income taxes in order to lower local property taxes. School districts would receive a portion of the revenues generated to reduce property taxes on a dollar-for-dollar basis, according to the Post-Gazette.
The flaw with this idea is that it treats the symptom, not the disease. Property taxes are high in many communities because the tax base is too low to properly fund local schools. So while it would be good for obscenely overtaxed communities like Wilkinsburg to be able to lower real estate taxes (ignoring for the moment the regressive nature of sales and income taxes) you're not doing anything to address the core problem, which is that many communities can't afford to operate their schools. One possible solution is to use the extra money generated by the state tax increases to raise the state's share of education funding, thus giving taxpayers in poorer communities--and those with few commercial properties--a real shot at long-term tax relief.
I'm just thinking out loud here. But I don't think this proposal is going to cut it.