You can require that the animal be leashed or carried in common areas, especially stairways, elevators, fitness rooms, etc.

Go slow but sturdy would be my two cents.

You can also require the animal to be on a leash or in a carrier in common areas, unless that inhibits the task or service the animal provides; handlers must clean up after the animal on the property; no offensive odors can emanate from the residence.

I want to lay a sturdy foundation before i pull the trigger. 

For example, potted plants need to have sturdy drip containers.HOUSE RULES: To protect your comfort, safety, and enjoyment, and that of your neighbors, Owner has adopted the following rules concerning your conduct while a Tenant of the Premises.

My old business partner, Bob, told me a story about how his next door neighbor's dog would always crap in his yard (the neighbor had the dog on a leash and would stop and let the dog dump in Bob's yard).

You'll build loyalty with them and have a sturdy contact list for any new properties you acquire.Yes, this may cost you more time/money now, but consider it a "loss leader".

However, you are allowed to impose certain rules like keeping the animal leashed, not allowing it to bother the neighbors, repairing any damages caused by the animal, etc.

Pets must be leashed and not left outside.

I even look for all brick buildings now because I know they are going to be sturdy.