In this Practice Series, Jenner & Block Partner Paul B. Rietema and Associates Skyler J. Silvertrust and Maria C. Liu examine personal jurisdiction in the state of Illinois, including state and federal courts. They discuss the overall principles of general and specific jurisdiction, as well as how those principles are applied in several common situations, such as internet contacts and the acts of related corporate entities. In closing, they explain how to challenge personal jurisdiction and the ways in which those challenges can overlap with other issues. Contributing authors are Associates Brenna J. Field, Sara Kim and Sarah Youngblood.