Companies have gotten acquired for very low or no revenue. In that case, you'd make nothing off the sale. If you'll be a co-founder, ask for equity (50%). Or i

Companies have gotten acquired for very low or no revenue. In that case, you'd make nothing off the sale. If you'll be a co-founder, ask for equity (50%). Or if he's looking at you as an employee, ask for a market-rate salary and the profit/sale share for the risk you're taking.