The mission of Keystone is to increase the ability of persons with serious mental health conditions to adjust to and remain in the community environments of their choice with personal success and satisfaction with as much independence as individually possible.

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Keystone House was founded in 1972 as a non-profit organization providing rehabilitation services for individuals with psychiatric disorders. Keystone started with one home serving 12 clients, growing over the years to presently operating two group home level of care facilities with an additional facility providing long term supports.