No.Our typical unit gets rented in 2-3 weeks with a non smoking, never evicted tenant with net income 3x the rent and no pets. 625 credit score or so. 

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.

The bad side tenants had a big mess and had unauthorized pets in the unit.  

Over time I realized I would be losing out on extra income if I simply charged a pet fee instead. 

Plus, when you're in the lower grade areas, they get double the ground to rob you since you don't know any better and it isn't like you can personally inspect the unit.Let's not forget the judgment proof wrecking ball tenants that completely disregard no pet rules and jam in more people than the unit is suitable for without getting them on the lease.This all goes to say that it is best to use extraordinary diligence in buying the property beyond the fact that it is just a low price deal.

Perhaps knocking something off or waiving pet rent (since you can only collect $35/month with the new Colorado law) if you allow pets...? 

One of them had two dogs and two cats and I know how hard it is to find a place that will accept 4 pets.

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.

For example, until recently, the highest profit post-TDR use that I'd identified was establishing "Green Cemeteries," aka selling "$500 post holes" for the ashes of people and their pets, buried in biodegradable containers.

Tenants can be very harsh on hardwood and laminate....moving furniture, pets claws and spills are generally not handled as well as they are with homeowners.