Hopefully she can cook and is a good conversationalist because she'll be living there for two years :) Good point forget 10k just free room and food

FYI: NNN fast food restaurant.

Don't assume that the occupants would not also get some other expenses paid like a food allowance.

Given that the unit is not legally rent-able I would follow @Brian Gibbons advise and get a food attorney.

With that here are my observations/food for thought around things related to owning apartments:1.)

It's a line that I personally draw so I can sleep at night.On self-storage I agree with your thoughts... and MHC - you've given me food for thought. 

@Jared Hartley are all the properties on the same parcel?

Now, having said that, since we are talking about tax deeds, they can, and most times will be distressed properties, so due diligence is absolutely vital- this includes GIS search to make sure you see the actual parcel and everything included, driving by if you're local or getting a RE agent to take pictures and while doing so ask them about that local market. 

(R) "Commercial real estate" means any parcel of real estate in this state other than real estate containing one to four residential units.

in Oregon the public cannot bid on tax sales they escheat to the state and then are sold as surplus.. but its so rare to have anything go in that state.CA will have a lot but 99.9% of the parcels that go are bare land.. with the majority of it pretty worthless strips or unbuildable lots.Wa you can buy at tax sale but again very few real parcels of value go and virtually no improved properties..In your area..