Items cannot be stacked against wall prohibiting natural air flow to guard against mold, etc ?? 

That calculation is so simplified that it doesn't even bother to factor into the equation any costs  and that $200K just magically appears out of thin air. 

It is typically caused by excess humidity (showering or cooking) and can be resolved by teaching the tenant to use ventilation fans and airing out the home once a week for 10-15 minutes.

.$178  -  TCL 43” Class Q5 4K UHD  Roku TV - https://www.walmart.com/ip/43-HDR-QLED/7655563299$5.00  -  Sertapedic Dreamloft Bed Pillow, Standard Size (20"x26") - https://www.walmart.com/ip/seort/5493381861$228  -  TCL 65” Class S4 4K UHD HDR LED Roku TV - https://www.walmart.com/ip/seort/5830084914$50  -  Gourmia 6-Slice Digital Toaster Oven Air Fryer - https://www.walmart.com/ip/GOURMIA-6SL-TO-W-PRO/5650052853$178  - Hisense 55" Class R6 Series 4K UHD Roku TV - https://www.walmart.com/ip/The-Hisense-Roku-TV-R6-Series-pac...$50  - Gourmia All-in-One 14-Quart Air Fryer - https://www.walmart.com/ip/GOURMIA-14QT-AIR-FRY/5466948866$25  - Crock-Pot 7 Quart Oval Manual Slow Cooker - https://www.amazon.com/gp/product/B003OAJGJOOk, so as you can see, the algorithm grabbed up a bunch of Walmart deals this time around.

This includes, water, hot water, heat, air conditioning, cable, security system, snow removal, lawn care.

I would also strongly recommend mounting outdoor Air Condensers higher up.

They're not connected to the electricity grid and don't have air conditioning or amenities.

How do you replace the air filters?

You can use a market rent 1007, Air DNA, to qualify.

It's hard to focus when you have so many balls in the air and some of those balls need dedicated attention because you didn't do your homework at inception.