If the carpet is worth keeping, we pay for the cleaning and only charge the tenant for damages, such as significant stains, burns, tears, pet urine, etc.4.

why not a " non-Profit " petting zoo, for 24 mo. ,, no intrest in that,, hmmm time to sell,,,,

So if you feel that you must contribute, go down to your local shelter and contribute there.It's in my written criteria: I will not rent to anyone who tells me that their pet is an outdoor only pet.

Back when my parents bought thier first house (because it was impossible to rent with kids, all rental ads said: no pets no children), there were small starter houses on good size lots that were designed so that they could be added onto easily.

They then split up, one moved out, we allowed a sublet, that person started smoking in the house, followed by hiding pets in the house.

Paperwork:  I use an application I created that requests 5 year employment and address history, animals (not "pets" since they need to disclose ESA etc), cars.  

What concerns me is the $450 in fees-not including app fee/pet fees etc. 

I can no longer easily terminate a tenant for things like too much clutter, too noisy, bringing unauthorized pets in but getting rid of them when notified, etc. 

However, if you have a truly excellent single older adult, non-smoker, no pets, coming with little to no furniture, and he will be the only occupant, giving you a honking big damage deposit, plus he doesn't mind that you're gonna have it on the market while he's there, with showings, you might consider it. 

@Mary J.Hate to be the one to tell you this, but the dark spot on the hardwood floor is very likely to be pet urine.