For example, a sandwich lease carries some of the same risks that any landlord faces, what I call the tenants and toilets issues. 

Hello,I'm looking for toilet recommendations to use in a rental house.Since I'm responsible for paying for the water, I would like something with a low water usage that still gets the job done effectively, and has as few issues as possible.What brand/model would you guys recommend?

Most times the water usage drop is significant and the residents are much more likely to notify you when they have a leaking toilet etc.We've also found that the expenses for the material and install is often recovered within two years or less.Sometimes we need to reduce the rent by $20-30 less than what we would otherwise be able to rent it for, but in some cases, it doesn’t affect the rent at all.

The Niagara Stealth advertises it's ultra-high efficiency @ 0.8gal/flush.
I pay for the water in my rental units, so I was looking for something that's going to cut my costs on water, but also doesn't clog and need c...

When you say no more than $2500 to rehab a bathroom, do yo mean toilets, vanity, and flooring too?

New gas flex line if it's gas and not plumbed directly, *maybe* a few feet of new cable for an electric (but often you can reuse the old cable).If you want to add a drain pan, price that out at the big-box store too - maybe $20 for the pan and $10 for some PVC drain pipe. 

@Allan Pan, I think the biggest thing with STRs now is: they are no longer "buy it and they will come".  

After 30 years I'm over tenants and toilets. 

I would think that's going from frying pan to fire.

Forget the surround, what is a dehumidifier doing operating on top of the toilet:) Then they stuffed some tiny cabinet and tiled on top of it and put it directly in front of the already small space in front of the toilet?