Failure to follow instructions (using a do not use vendor, allowing pets in a no pet rental, not enforcing lease violations)Failure to fill units aggressively with qualified tenants or filling units with warm bodies not vetted tenantsPet peeve: failure to communicate.

Has anyone found a way to avoid taxing the cleaning fee/pet fee ?

You need to take a look at where they presently live and how it is maintained, if they do or do not have pets, how well they maintain their personal vehicle, confirm drivers licence info matches their application form.

I have a 24-unit apartment complex that has a no-pet policy. 

They are about to move into the property and are most likely asking because we require a full month's rent as a deposit as well as a pet-deposit.

I found a condo in a B+ area that has reasonable HOA fees and rules (they allow tenants/renting and pets) and the numbers work.I would like to hear from others who have invested in condos for buy and hold, and how that has worked out for you, bad or good.Thank you.Shoshana Shulman

In a SFH, we most likely would have gone months before finding out about the unauthorized pet -- or would have hesitated in issuing the cure or quit due the possibility of a turnover/vacancy in December. 

I'd also consider the additional income you can get from potential pet rent.

@Salomon W.I do and recommend a very thorough screening including an application, credit check, criminal check and eviction check on everybody that will be living in the house and all persons, even the pet is named in my state compliant lease.

I could not find anything conclusive about the law for a pet deposit or monthly fee.