What Are the Certifications in MD, to Open Up a Drug Rehab Center?

I wanted to open a drug rehab house for drug users. The houses are fully paid for, and I wanted to house the addicts there. My sister, who is an addiction counselor will be assisting me. As for me, I have an AAS, in law enforcement, a BS in criminal justice, and I ‘m working on a MBA. What all do I need?