Mine has not flooded but I have 2 sump pits with 3 pumps, 2 of which are backed up by a natural gas powered generator with an automatic transfer switch and one pump which is a battery only. 

Sorry the batteries went out in my key board2. these properties come as surplus tax sale abandon  like Morris invest clients got roped into.3. foreclosures4. foreclosures of landlords who just got sick of the tenants and walked away5. homeowners who realize the house is not worth much and walk away6. burnt out landlords who have had enough and just sell to get out of them.the houses in many markets and a lot of indy these are 50 to 100 year old homes.. they have been cycled and cycled and cycled.. 

Its all batteries, no wires and works great.

The other thing that has been said, it's cheaper to maintain a temperature than to recondition an over heated space.

You can buy reconditioned ac units.

It uses 4 AA batteries to run it.

Run all the sinks, flush all the toilets, run the shower and tub to make sure they are OK.Put fresh batteries in anything that needs them - smoke detectors, doorbell, garage door opener remotes, closet lights, etc.Make sure you have enough door keys for both you and the tenants. 

Chris, I don't have a template I can give you, but we check/change air filters, smoke detector batteries and do a look over the overall condition of the interior and exterior of the house. 

I rented out my SFR nearly two years ago; the same tenants have been there the whole time.The last time I went over for a regular maintenance visit, a couple of months ago, one of them asked me how often I had put batteries (2 AA) in the thermostat while I was working on the house. 

If the smart lock battery dies, or the tenant loses the mechanical key to the smart lock, or the PIN on the smart lock is smarter than the tenant is at 2:30 AM on Saturday or Sunday morning, or the smart lock manufacturer pushes a bad firmware update, or the local bad guys push a bad firmware update, then the tenant can still use a mechanical key on the side door or back door and get in the house.For the lowest cost, you might have the smart lock on the main/front door with mechanical key A, a mechanical lock on the back/side door that they will probably use most often with mechanical key B, and then three keyed-alike mechanical locks on the other three doors that have mechanical key C.