In this lesson, we’ll discuss joinder of required persons under Rule 19. We’ll learn how Rule 19 determines who must be joined in a federal case, and we’ll discuss what happens if a required person cannot be joined.

I. Overview of Rule 19

Let’s start with some general concepts. The purpose of Rule 19 is to make sure a case includes all parties who are needed to resolve the dispute fairly and efficiently. Rule 19 comes into play if there’s a question about whether any required person is...