What does a personal injury lawyer in Philadelphia do. A Philadelphia personal injury attorney is one who has experience in helping to represent those who have sustained injuries resulting from another person’s negligence or harm. These attorneys work to assist their clients receive compensation for medical expenses lost wages pain and suffering, and lessons other damages as a result of accidents such as car accidents slip and falls cases or medical malpractice. A Philadelphia personal injury attorney can offer specialized guidance and support negotiate with aggressive insurance companies and represent their clients in court if litigation proves to be necessary.