House Hacking with a partner dilemma

[Edwin Anthony Ball]

So my partner and I are about to close on a single family home that we are going to house hack. For the first year we will both live in the house while renting out the guest bedrooms allowing us to live practically for free. After the first year I will be moving out of the house (I will be newly married and my wife doesn't love the idea of roommates, go figure) and my partner is planning on continuing to live in the home. The problem we are having is that we don't know how to handle all of the expenses if, for some reason, we are unable to rent out the guest bedrooms while he is the only one living there. It seems kind of harsh to stick him with the full bill as if we were renting the whole place out since we are in on the investment together, but at the same time I don't want to have to put in a lot of money for expenses for a place that I'm not living in and he is, especially since its supposed to be an income producing asset. Does anyone have any thoughts or advice? Thanks for your time!