Personal Jurisdiction is a court's legally attributed power to oversee a lawsuit between 2 parties.
Due to the fact that NBC is legally incorporated and runs operations in both the state of New York and California, Susan is legally permitted to file a lawsuit against the company in both states.
Federal courts are not initially responsible for determining an outcome between both parties. However, the case may escalate up to the federal court after a series of appeals that can be made by both parties.