szdro - Sorry to go a bit off-topic here...but you have a few different threads going that are raising questions in my mind. In order to provide you with more relevant answers and make sure one answer we post doesn't conflict with another, maybe you could give us a bit more background on what you ultimately want to do?

It sounds like you're buying a house now on a B permit, but you want to get a C permit under VINTA (since you're non-EU), and then leave CH and rent out the house? Or even just rent the house from the start and stay living in a different municipality. Are you just asking a lot of what-if type questions and this isn't all one grand plan? Thanks for clarifying.