This paper describes an urban teacher residency program, the Newark Montclair Urban Teacher Residency, a collaborative endeavor between the Newark, New Jersey Public Schools and Montclair State University, built on a decades-long partnership. The authors see the conceptual work of developing this program as creating a "third space" in teacher education. We detail the ways in which we conceptualize epistemology and clinical practice in teacher education, and changes in the roles of the community, and P-12 teachers that occur in a third space. Providing an account of our messy and nonlinear process demonstrates the struggles of creating new spaces for teacher education. We believe the theory that informs our work, the challenges we face, and the strategies for meeting those challenges illustrate the tenuous and ever-evolving nature of doing work in the "third space." (Contains 2 tables.)