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.

Hello folks in Georgia / Atlanta,The Bigger Pockets Book On Rental Property Investing provides access to a comprehensive list of 34 forms that would be useful to a landlord including things like a lease agreement, application, late rent notice, move-in-move-out agreement, estoppel agreement, tenant phone questionnaire, pet addendum, etc. etc. etc.  

We are going to allow pets, so we did nothing but several good coats of wax on the hardwoods.

Bring in the big dogs. 

You can run an ozone machine for a bit while no one (including pets, but assuming they have none) are in the house.

There's a real good chance that the lease requires them to do several things: upkeep on the unit is a big one (damage to property), weeds outside and landscaping (which encourage pests and insects to inhabit the property), pets authorized or not, additional tenants on the property that are not on the lease.

The pet odor.

Not asking you to dog on your listing, but I'm interested, because I do see the middle-of-the-road homes -- clean, but not updated, nothing special -- sitting for longer and the nicer ones with a little something extra going quickly.

Dont let the tax tail wag the income dog!

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.