After gaining a little more experience it seems the two most common problems with house are water damage from various sources and pets.

If they have been there for 5 years and the residence is clean and not damaged, why would anything change because of new ownership.

I've noticed that the gas meter has been installed in the driveway where it could easily be damaged by any vehicle pulling in or out of the property.

Your primary tenant is responsible to pay, the others pay him or you.Other tenants will come and go, that's fine, they are also responsible for damages, to the primary tenant backed by mom and dad.Evictions are then done with one tenant adding in the eviction "And all others in possession".In many areas you are limited to the number of non-related parties renting, having one simplifies the over-weekenders thing, but stay compliant.

If it were me, and the dogs are friendly and not causing any damage to the property, and not causing any problems for other tenants, I would probably just let it ride and note it in your lease (i.e. if a dog dies, it cannot be replaced without lease revision and nothing >35lbs, etc). 

The problem is that on the next day I got a call from the adjuster saying asking for some additional details and saying that he reviewed my policy and this type of damage/incident was not covered.

When it pulls off does it ever leave any damage? 

If something were to happen, like extreme damage to a property, I would go tend to it in person for sure, but so far that's never happened with one of my turnkeys (did happen with a non-turnkey I have, but that's just a risk with rental properties in general and not turnkey or non-turnkey specific)How long was it before the properties started needing repairs?

House has always been very well maintained, minimal damages.  

Did they leave the place clean and without damages?