I found that they had run a coax cable across the stairs to provide cable into an unwired room.

We have since installed plumbing and cemented over.  

She didn't even mention this, but I also offered to send her a copy of my utility bill to prove it was my residence, just in case she was worried it was a scam.Then, all of a sudden, when she realized she would need to put her money where her mouth was (duh)...it turned into, "oh, well first she needed to talk to her friend to cement the travel dates and blah, blah, blah."  

Didn't it feel like you're just in a cement slab garage, even if it has a couch in it?  

Other than that, stairs are a pain.  

After you've seen some of the worst REOs (think: cement poured in all the drains, all the freakin copper ripped on, no evidence of any HVAC equipment, etc.) the worn-out houses you see from mom & pop sellers will look like GOLD.

We do our best to eliminate hallways and try to locate mechanicals and/or laundry under the stairs when possible.Send me a PM and I'll send you a floor plan as an example.  

Ideal management company would have a large portfolio of HCV properties as the tenant would like to move to a new rental property without stairs.

All three units would probably still have stairs and landings for an entrance.

If someone slips and falls down your stairs, or if there is a horrendous dog bite/attack, if someone sues you for exorbitant medical costs over what your homeowners policy covers, your umbrella policy would kick in and pay without you having to dip into personal funds.