Philadelphia is the founding city of Ballard Spahr and home to its largest office, with attorneys representing clients in litigation, business and transactions. Are you looking for a Philadelphia area Attorney?Our experienced team is ready to talk about how we can support the legal matters of you and your loved ones. Duane Morris corporate attorneys advise early-stage and mature companies on a wide variety of corporate and securities matters. Community Legal Services (CLS) provides free legal advice and representation to low income residents of Philadelphia. Get legal help and learn about issues. Driving Directions to Philadelphia Office: Our office is located on the corner of 16th and Market Street. From points north (New York, Northern New Jersey):. Call today for experienced representation! Contact 215-486-0123 for comprehensive legal support.