It would probably help people here to better focus on what advice you really need if you would stop dancing around the "partner/not a partner/consultant/employee" thing. What is he? What has been defined and agreed upon? Fwiw, if you're referring to him as your partner, and he's actually not, it is likely going to lead to issues down the road, especially if/when things go South. Pick a title, pick a role, write it out, and stick to it.