Supreme Court of New Hampshire v. Piper

Kathryn Piper (plaintiff) passed the New Hampshire bar exam and filed for admission along with a stated intent to become a New Hampshire resident, but the New Hampshire Supreme Court (defendant) denied her admission under a rule requiring bar members to be state residents, since she had not yet actually established a home address there. Piper sued in federal court to enjoin the residency requirement, winning at both the district court and court of appeals, and the New Hampshire Supreme Court appealed to the U.S. Supreme Court.