Philadelphia Legal Assistance`s PA Farmworker Project (PFP) provides free legal assistance to agricultural workers who are victims of workplace abuse throughout the state of Pennsylvania. Prices in Philadelphia, Pennsylvania increased 1.0% year over year Legal Assistant salary in popular cities: Pittsburgh, Allentown, Erie A career at the PLA will allow you to improve access to justice for low-income individuals and families in Philadelphia. About Philadelphia, Pennsylvania Philadelphia, sometimes colloquially known as Philly, is the largest city in the U.S. state and the Commonwealth of Pennsylvania and the sixth largest city. More.