A unique affordable housing development in Winter Haven will tackle homelessness and mental health. Donn VanStee is the director of administration for Tri-County Human Services. It is Polk County’s largest substance abuse and mental health provider for the un-insured and under-insured. “I can tell you that in our detox center, we may have people that come in there 8,10,12 times in a matter of three months,” said VanStee.