I don't really like the KPI angle, but overall I agree. Impress on her that free or not, your going to treat it as a job, and that (in whatever diplomatic terms

I don't really like the KPI angle, but overall I agree. Impress on her that free or not, your going to treat it as a job, and that (in whatever diplomatic terms you want) if she doesn't contribute as agreed she's fired, paid or not. I've had a similar problem, and I was hesitant to be to hard on the unpaid person, because he wasn't paid. Like your case, this was not a question of trying to get cheap labor, he wasn't doing me a favor, but still somehow it feels like there's less leverage without a real pay cheque, and it makes it harder to take a hard stance, but imo that's how it needs to be managed.