You might think of starting a chapter of ACA in the facility -- Adult Children of Alcoholics (and other dysfunctional families). ACA is a 12 step program which is focused on the "messages" of growing up in dysfunction and how they inculcate a lot of false information, bad habits and later misery in our lives. People pleasing, self hatred, emotional constriction, shaky relationships.
I think you may have a built in issue... things will come up in co-housing because sharing space with others may be very triggering to people who were hurt in their families of origin. The group dynamics will likely raise a lot of these old issues. Having an evening meeting where people can process these things might be a big help.