A: There are rules that govern where a Pennsylvania accident case can be filed. If an accident happens in Pennsylvania and it involves parties from different states, the case may be filed in Pennsylvania state or Federal court. There are certain situations in which Federal court is a better choice than state court for a personal injury case. When a case is filed in state court, the rules of civil procedure limit the choice regarding which county the case can be filed in. In Pennsylvania state court, the case can be filed in the county in which the accident happened or the county in which the defendant lives. If the defendant is a corporation, the case can be filed in any county where the corporation regularly does business. This is a general description of the "venue" rules, though not an exhaustive analysis. Different counties in Pennsylvania have very different histories regarding case value in personal injury cases. The choice of where to file a case is very important, and requires an experienced lawyer to consider many different factors. It can be one of the most important decisions the lawyer makes.