I am the technical founder of a software product, the product is finished with good inputs from at least 6 to be customers. My to be Sales partner who is already helping me from the past 4 weeks proposed me about a X-Y partnership and he will work full time on this project. But however he is NOT ready to commit on any sales targets/milestones Or 'my ability to end partnership' in case he is NOT doing good. His argument is with these conditions, the working model would be like job and he doesn't want to get into any more jobs. Also he says since he is doing this full time without a salary, which is the risk he is taking and accordingly he should be compensated roughly 50-50 partnership in the near future. The valuation model he is using is the number of hours I spent building this product with my hourly rate plus my cash investment.
My worry is without these two conditions the model would be open ended without accountability. Is this makes sense?
Additional information: We both know the early sales takes a lot of effort to do and it is NOT fair to compensate that by just percentage. I am OK with offering equity but I want to make this conditional and looking for some feedback in these lines. –