Thanks everyone! This has been so helpful.
I was irritated yesterday, but should be clear, he did not have to consult me about buying the bike before hand, and I am fine with that, but if he was assuming he was going to store for the winter in my shed, I still think he should have, or atleast when I first said no, moved on to storing it at storage unit.
I will definitely speak with lawyer to help add to his tenant at will agreement. I don't think he loves that someone else has a say over anything but we will have to work through it together
This morning I got up and walked my dog. He came outside and told me he is putting a car port up and to not worry about the shed, before I even had time to look at the shed, call my insurance guy or check my bigger pockets post, lol.
I had to tell him, I want to help you, I just need some time to figure out what I can, and cannot offer you. I just found about this less than a day ago, so I am not sure if you knew, but you can't just put a car port on someone's property, you need my permission, and I have final say on which one/what kind specifically you can put up, if we do that, but, I need some time , to look at this option and the shed option before I say yes to either, but since it's for winter storage only, we have time.
It's currently, not registered, insured and he doesn't have a license for it. Lesson learned, I will put in my next tenant at will agreement those are the only types of vehicles that can be here. If I redo his tenant at will and increase the rent to reflect the storage space afford to him, I will add it there, as well as renter's insurance, and that I am not liable paperwork.