I’m doing all of the development and he’s handling product and business. It’s just the two of us. Now that we’re entering an accelerator, it’s basically all or nothing for both of us.

Maybe the better question is this: is it ethically acceptable to expect him to take 0 salary until seed without additional compensation, given that this is the only way we can realistically reach a seed round? In my mindset if he doesn't do this sacrifice he already loses 100% of everything.