@Shelley123 thanks for sharing your story. I also live in NC and am entering into a co-hosting arrangement with the owner of an AirBnB currently. I'm planning on setting up our arrangement almost exactly the same as yours. I am not licensed. I'm curious, if you can answer these two questions, where my model differs from yours.
First, if I choose to have AirBnB split the revenues and send me (the co-host) my split from the platform directly (rather than the way you are doing it and having the host pay the co-host bill at the end of the month), then does that cross over the line where I would need a license?
My second question is, what if I as the co-host make decisions about whether or not to book a guest (ie-I don't have "instantbook" activated and if a guest has no reviews I will not allow them to stay at the hosts house)? Would this constitute "screening" and therefore mean that I need a license?