Well what if neither of you were contract-hired freelancers? What if you were employees? or founders of your own companies? That kinda chucks contract-law out t

Well what if neither of you were contract-hired freelancers? What if you were employees? or founders of your own companies? That kinda chucks contract-law out the window. So how will you ensure people aren't using your company's logo as their own? Remember, it isn't necessary that the company would be willing to change their design/logo just because you are using it too. This discussion extends to design too. Nobody minds using someone else's design if it's good enough.