Consider all the things that could go wrong and see if the lease addresses them: unauthorized pets or tenants, early termination, security deposit, lease violations, late rent, eviction, lawn maintenance, parking, etc.5.

That is a cheap pet fee and good cancellation. 

For example, I mention that every adult must pay a $30 application fee, pass my credit/criminal background, make a combined income of 3x the rent, and whether or not the property accepts pets.

If your unit doesn't stand out in other ways considering adding amenities like a hot tub, backyard mini golf course, making your airbnb dog friendly, etc.

Some people are sending supplies (clothes, other needed items like school supplies, food for humans and pets, etc). 

Appliances look nice until the pet hair destroys the fan on your nice stainless steel fridge and you are out another $1k+ to replace it... 

Exactly 1 year later my first tenant moved his family in where his kids and dog can play in the massive yard while raising 2 cows in the barn.

Quote from @Tod DuBois: Another Furnished Finder POT cancelled on me after I went out of my way and paid to review them on Key Check and signed up for Key Check contracts, made two contracts, allowed a pet and still, two days before the check-in, they did not sign.

Mentioning unique perks like 'Game Room,' 'Lake View,' or 'Pet-Friendly' can really draw people in.

Poor communicators, poor housekeeping skills, prescription med abuse, big dogs that they couldn't properly care for, damaging, etc.