Animal dander sticks to the walls, fans, fixtures, etc.

As for the postcards, I listened to a BP podcast before where a person had success when the put a picture of an animal on front because the thought was people warmed to it better.

What does the law say about emotional support animals?

I even noticed the tenants had affixed some kind of bird cage to the outside of the home to allow an animal to go in and out of the home.

STR and MTR investing is a different animal all together taking you from housing to hospitality and requires more of a time suck than many initially realize. i personally only do long term rentals and students. i do have a property in mind and making the connections to transition it into a sober living home. excited to see how that shakes out. 

Call animal control and report an agressive dog 

Humans cats and dogs, goldfish, tweety birds, not horses or other farm animals of any type.

The hold harmless agreement is another animal in itself.

Animal control was called, and I decided to issue a 10-day notice for the tenant to remove the dog.The tenant with the dog is now upset because they want to make things right with the injured tenant, who is refusing to have any contact with them.

Most the time all we find is animals (dead or alive), spoiled food, feces, etc. so it's nice to hear someone find something that isn't any of those items!