Than between Feb & April we replace the batteries in the keyless locks.

I have walked though one of our units (I was there to change the backup batteries in the smoke detectors) that was so filthy our toddler, who was with me, did not want to be put down on the floor.

This way they don't call me to change a light blub or put a battery in a smoke detector.Good Investing...

Honda has invested $3.5 Billion in Fayette County for a plant that will make batteries for electric vehicles. https://www.dispatch.com/story... buying even more land! 

As well as Forsee Power which is a French-based EV battery company. 

The biggest key is to find a good cleaner/pool guy that can handle minor maintenance things, like changing lightbulbs and batteries in the wifi locks. 

I use keyless locks (push button code) from homedepot they're about $100 and really easy to install and reset, battery lasts a very long time as well I would definitely use them for a vacation rental.

Making sure inspections are done at least twice a year to check furnace filters, dryer traps, smoke detector batteries, check for leaky pipes and ensure issues are addressed timely. 

The 'Tour Request' I received a minutes few ago was from an individual  arrested and jailed for assault/battery  & brandishing a weapon in 2023.As moderator, you may want to consider how your responses can come across as a bit demeaning, possibly misogynistic. 

So, TLDR, keep an eye on the battery consumption rate.