Not a lot but there are some of us out there.all markets have the big dogs.. 

Also helps with pets smells. 

In my research I've found that I'm not allowed to charge a pet deposit for service animals and that it appears that as a landlord, I have limited/no ability to validate if the animal is truly a service animal vs. a companion.

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.

If it is true, then show they have no pets, and have them sign a letter that says they will not have pets in the home at any time including visiting pets during their tenancy. 

Bird dog, drive for dollars, investment check-ups? 

I purchased a SFH that has dog doors built into the door that leads to the garage and the door that leads from the garage to the backyard.

Not sure if were being to stringent but asking people to fill out a really brief questionnaire (name, number, current address, gross monthly income, pets, etc).

LL was not aware dog was so vicious, or was he?

lol   Definitely opt for the multiple bathrooms, have specified food areas, NO PETS, month-to-month leases, no couples, no drama-- and absolutely hire a cleaner every week or two.