With your father's death, you have a lot on your plate (probate, etc.) and though it's already been a few months, it seems that you are uncertain whether you'd like to be a landlord across the country (and manage a PM once you've shopped around and find one that you like and deem competent) versus selling the property (and taking that emotional burden off your shoulders in a way).

I dug the crushed rock out from under the sill plate and found daylight.

Legal zoom is a generic boiler plate blanket set up and usually just good enough to make you feel protected with many loop holes.

She is a single working mom and when I looked at her credit history, she has so many things on her plate.

So then we added a round plate where the rod pushes on the wall, the type used to prevent doorknobs from punching through walls.

The cops might appreciate a call, but without a vehicle, plate or a concrete destination he's heading to, there's little that can come of it.

Our landlord, on the other hand, never hears from us, we pay rent on time, and we keep her place clean and maintained nicely -- it actually looks way better now than it did when we moved in, because we've repaired crumbly wall sections, spackled holes/dents, touched up scratched doors and floorboards, de-stained the linoleum, replaced cracked lightswitch plates, power-washed the patio, washed the blinds (the landlord didn't, there was cat hair embedded in them from a previous tenant, which by the way the landlord wasn't aware of anyone having a cat, LOL), etc.  

Make sure that whoever replaces the door, uses 6 " screws in the door hinges and strike plate.  

When they don't pay I consider it as if they are stealing from my plate.

Homeowners have plenty enough on their plate as it is without having to worry with nonsense from AirBnB.