re: Rental Property Question- own an upstairs unit in a fourplex

First off, kudos to you for the way you've handled it so far and your general outlook on it. If more people were like you, we'd be a lot better off.

I think the best thing for you in the long run is to try and facilitate relationships between your tenant, the guy, his caregivers and step dad. It can be totally weird and incredibly off-putting for someone who has never been around someone with a developmental disability before. Having a good relationship with the guy will make your tenants more comfortable establishing proper boundaries. Which will be good for both your tenant AND the guy.