It will be nearly impossible to find someone to be a full time partner starting tomorrow. People need time to tie off loose ends and to prepare family and ones self for a potentially volatile job.
You will need to outline a CLEAR business plan, they will want to know everything, and everything else, about the company; its goals, what your plan is if you fail to meet projections, they will want to see projections, conservative projections, and they will want a stake in the company.
They will need to be sold on your idea too. They need to know that working for you will be better, either by saving the world, developing super powers, etc.
If someone says i can give you 6-10 hours a week in the evenings, and then i cans tart full time in 2 months, that may be something you want to take them up on.
Also, EVERYONE will have side projects, just make sure they are doing their side projects on their time, and not sucking $ out of you to code something youll never use.