Another question for you: who determines when a project is done or that it has met the requirements for MVP? For example, say I pick up one of the projects and

Another question for you: who determines when a project is done or that it has met the requirements for MVP? For example, say I pick up one of the projects and the subscriber picks me to work on it. Okay, great. I go and work on it and consider it done. As it turns out, there was a lot of miscommunication and they wanted something different. Do I still get paid? It seems like either way, there is a huge avenue for somebody to get screwed.