Sell 90% of it. Or some other structure where you give up ownership and control, but retain some residual. You'll have to reduce your asking price quite a bit

Sell 90% of it. Or some other structure where you give up ownership and control, but retain some residual. You'll have to reduce your asking price quite a bit (so maybe you end up with $450k vs $600k), but I'm guessing that won't really matter in the grand scheme. As for what's next, you need to figure that out anyway. It doesn't sound like your business is going to continue forever without some new passion, so this gives you 2-3 years of runway to figure out what gets YOU excited. If you choose your buyer well, maybe you'll get a huge recurring payout over time. Or maybe you'll get nothing. But hey, without passion your business is on its way to zero anyway, so there's no real loss there.