You may find they are behind on rent regularly or that they have unauthorized pets or people living with them.

Dead pet?

From what I have been told by the tenant couple, the 3rd tenants pet is either inured or just plain getting old and its health has deteriorated quickly in the last short period(month or 2). 

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.

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.

How much to charge guests hind dog inside in a non-pet STR? 

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.

She now is asking that I move out my long term tenant because he broke the lease by having a dog and not paying for a pet deposit (a conversation they both had).

Property management is going to the same model with a % of rent as the management fee, then additional charges for new leases, renewals, inspections, work outside the scope of management, application fees, add/remove tenant, add pet, etc. 

Traveling nurses, business professionals, traveling families, people traveling with pets, and people who just don't feel comfortable staying in hotels are all looking for STR's.