I could see it working well if you have a good system for roommate style rentals (student housing, house-hack).

Our next MeetUp is 6:00 next Saturday at Smokin in Style on 2278 Albert Pike in Hot Springs.

I had also considered using the unrented portions for some sort of attraction like paintball, snowmobile, indoor go-kart, haunted house, etc. but again, the population probably isn't there to support it.  

Kinda debt snowball in Dave Ramsey style.

If you haven't watched American Greed, it episodes depict Bernie Madoff style rip offs (https://en.wikipedia.org/wiki/Bernard_Madoff).

Vary the style of boards.

There's lots of styles.

Once you get around 30+ units it all changes again.For some good starter info, check out Commercial Property Advisors on youtube, there are a slew of videos in the style of Khan University that can help get you grounded.

I did pay 1/2 point for the line annually so one of my 5 mil lines I cut a check for 25k at renewal. then only paid interest as I put it out and it was bank rates  5 to 6% in those days... so not sure what they are promising the institutional investors.. but those who were my competition back in the day and could not get bank lines like I had  ( 20 mil) they would raise funds PPM style paying 9 to 12% and when the worm turned they got killed. 

In Chicago, probably somewhere between $30-80/sf, depending on specific location, types of contractors, whether you self manage or not, level of finishes, time of year, style of house, specific scope of work, etc.