How does one start a private college? I mean an official degree granting institution. Eventually accredited.

I'm in California and run a boutique coaching institute, which I'd love to expand into a full-fledged college some day. I have specific ideas on how to blend online and offline education and other differentiating factors. But I don't know what it takes to start one. I know there is some rigmarole with the state and that accreditation is a major roadblock that needs to be overcome. But I'd love to know the actual challenges, timelines, best-practices etc.