Think of 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.

I blame the podcast.. if someone hadn't said it was a pet peeve i wouldn't have Tried!

The advantage I instantly see is fewer dog owners will want to rent that space;) Even though I am a dog lover I hate pets in my units.

In my area a pet fee is $300 and rent is $25 a month, so you would get $600 back first year. 

Fair housing-  due your research on accepting service animals, even if you say no pets. 

Can I legally charge them pet rent?

There is a product called OdorXit AQM which I used successfully in a unit which was very badly assaulted with pet urine. 

Think of 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.

I even eliminated pet fees unless you have more than 2 (i usually turn more than 2 pets down anyway). 

That once you begin painting and working outside the pets will need to be contained in the house during the work.