This project will involve an evaluation of a program to house people who have serious mental illness, and who have had experiences of homelessness. There will be two parts to this study. First, the study will examine how this program has been implemented. A study of the implementation of the program will provide information that the program can use to improve how the program functions. Second, the study will examine the outcomes for people who are housed through the program. A key outcome to be examined will be whether people who are housed able to keep their housing.