I would strongly suggest a mediator, or a group of mediators. I don't think you need lawyers, but other people whom you mutually select in the software busines

I would strongly suggest a mediator, or a group of mediators. I don't think you need lawyers, but other people whom you mutually select in the software business would be good. What's the revenue model for the startup? Will you need to take more funding or do a lot more work in order to get to minimum "buyable" product? If I were in your shoes, I'd try to figure that out frankly before deciding next steps.