I would be interested in whether others have had instances where Minut flagged an elevated risk of cigarette smoke, but you have reason to believe there wasn't actually any.

The cost to "evict" may actually be 1/20th since 'stuff' doesn't have tenant's rights the way a residential tenant does, but the entire other basked of 'stuff' to deal with seems like it might be closer to 1/2 or 75% of the 'normal' level of time/attention/etc that you as the landlord have to deal with.... but you're only getting 1/20th the income.Unless of course you are going to tie these to the 7 units themselves, and moving forward every time there is a vacancy, include the storage with the unit as a bundled pair, and increase the rent accordingly.

Save more money too you will need reserves even if you can get a low/no money down option.

I'm actually not sure if I need to do anything if that turns out to be the case. 

Never take someone's word for it, get copies of actual rental documents.

Whenever I take my spouse to one of these 2000 SF houses, I can see money and potential, but he doesn't want me to buy.

My and my soon to be wife both graduated college at the same time and we make a combined $150k/year ($75k each) We are still living at home with our parents to save money, and we want to build wealth in real estate. 

I’m new enough to the industry that I actually didn’t know I would have to personally finance the lot.

You need money; the fastest way to do that is to start a business or get another job.

Honestly if your DTI are at the limit already and your parents need the money, sell it.