Where a junior lienholder was a required party and joinder was infeasible without destroying diversity, the U.S. District Court properly dismissed action.The 7th U.S. Circuit Court of Appeals affirmed a decision by U.S. District Judge Marvin E. Aspen.In June 2012, U.S. Bank National Association, which has its main office in Ohio, filed a diversity suit asking for a foreclosure judgment on the mortgage of a residential property owned by Heywood Fuller T. and Cheryle Collins-Fuller T., both citizens of Illinois.In 2005, the …