In my view, homeowner's insurance + umbrella + professional property manager should be good enough to (i) prevent lawsuits and (ii) protect you sufficiently if the worst happens. 

My plan is actually to move to Vegas in 3-5 years (wish I could move sooner but my job prevents it). 

Or does the fact that Arizona doesn't allow the formation of Series LLC's prevent me from even moving one in?

This prevents sophisticated professional tenants from filing an appeal to buy another free month.

There are obvious signs of deterioration that are preventable.

I hope that you have changed the locks and secured your property to prevent anyone else with a key to return.

That WILL prevent you from refinancing unless that property is worth way more than you owe.

A 2 fam with permit almost always have to be owner occupied which prevents you from buying it and renting both apartments. 

This will prevent this situation from happening 100% of the time.

Chris, Thank you for your quick response, I was looking to do a different strategy besides mass mailing, and I can see how preventing a foreclosure from happening, that would be a direct lender collaboration that I would have to work on indeed.