One of them occupies a floor in an office building and they take it upon themselves to add flowers and potted plants all around the building and maintain them.  

If done correctly, you are creating significantly higher returns on your money (possibly even infinite returns), and accelerating your velocity of money and wealth generation by using the "same pot of money" to build multiple streams of cashflow and multiple equity bumps.  

So we added twice the amount of kitchen cabinets as originally planned and even a pot filler over the range.

When new investors call me from craigslist or I meet them at meetups, I know they are new because of how they speak, but I voluntarily offer them free advice about the current state of the market, some things to avoid, some things to look into.

It seems like you have made a large amount of money over the last couple years, but very soon you won't have a pot to piss in.

Couches, rugs, plants, table to eat, art, pots, pans, and silverware are a few of the things I provide so that potential housemates can envision moving in easily.

Now it is a melting pot of all cultures living there.

Tons of pots, pans, bowls, glass pie pans...the list is loooong.I go out of my way to buy quality stuff for the house.

You can also try to terminate the lease and give notice to the tenant to move out, but they might not leave voluntarily and at that point your options are very minimal. 

But when you need me I am there..I understand also that everyone has different goals and that some want to find that honey pot of a private lender that thinks a 7% return on their invested funds is fab  :)Keep up the good work...