Find someone who you believe to be your equal (strength of skills he/she brings, intelligence, future potential) and treat them as your equal (50/50, same vesti

Find someone who you believe to be your equal (strength of skills he/she brings, intelligence, future potential) and treat them as your equal (50/50, same vesting schedule) -- you remain CEO. If you don't believe they are your equal, then find a way to hire them (as an employee, contractor, whatever) instead. Most other strategies are recipes for resentment in the long-term. As others have said, weathering the first 4 months will be nothing like what it takes to deliver a success story in 4 years.