Eventually their house falls into disarray and they only way they keep rooms rented is by lowering the cost so low, only the deadbeats will live there.I'm able to charge well above the market rate because I have a really well done house with all the fixings (leather couches in living room, 60" wall mount TV with HD channels, etc.).  

Once I began ignoring their criticism and got up and off the couch and took control of my finances, things started happening.

Products to looking for that might indicate housing moves: couches, tvs, beds, cars, refrigerators.

If that was the case I'd be sitting on my couch eating chips and "hoping" i get rich one day.

Or the couch is strategically placed over a massive stain? 

our issue is that we have non-residents dumping their large garbage items (couches,  mattresses, etc) in our garbage bin and not surprisingly the garbage company has an issue with the constant overflow.  

Would I be required to pay (or my insurance) for their damaged property (tv, couch, jewelry, etc) in the case of something happening in the home?

Sit down on the couch and put on some Netflix.  

Like you mentioned, you typically get longer term leases, and unlike a residential tenant who can move their couch and bed anywhere pretty easily, commercial tenants typically improve their space in the manner required to run their business, so booths and counters and built-in shelving in a restaurant, or barber chairs and expensive built in mirrors for a salon, etc. so the likelihood they pick up and leave when they have invested in your property isn’t as great.

No she does not simply match the cushions to the couch.