I'm wondering if you might ever consider a brief conversation about your experience in Duluth and what you have seen from the MTR space there? 

That might include things like adding units, converting commercial space to residential, or finding ways to boost income (like adding parking).The key is recognizing opportunities while walking the property, and that takes experience.

Not a lot of municipalities allow that sort of structure as living space in our area.

Tools like this helped us determine that retiring in the Memphis Metro area was good for us and has helped form our investing strategy, mainly SFR and some commercial spaces (flex, studios, small office).

I've often found that just going right to the expert in the space is going to be the most direct source of info.

How big is the space they are renting? 

Are you building for pure investment purposes or are you looking to use some of the space for personal/personal business use?

Then later as you grow older and no longer want to share your space you can just stop renting the other bedroom.

I would also encourage you to look into the house hack space. 

If you can find a place where the HOA or COA is flexible and you are able to convince the membership to go into development and perhaps convert the property into a co-op you could build a new apartment complex with commercial rental spaces on the ground floor and residential spaces on the top.