Issue Preclusion
A person or entity which must be included in a lawsuit so that the court can make a final judgment or order that will conclude the controversy. example: ned neighbor brings an action to enforce his claimed right to cross the property of oliver and olivia owner, but only names oliver as a defendant. to make it possible for the court to order the property owners to honor ned’s easement, olivia as a co-owner is an indispensable party. the procedural solution is for neighbor to amend his complaint or petition to join olivia as a defendant.