Probably isn't tenable to have a pool closed for years at a time and have nobody looking at it. If you end up abandoning it, which many people do, try to at-least keep mosquitoes from breeding in it somehow.
Realistically you can try to control all undesirable inputs into the pool to make maintaining it easier/lower cost, for example, getting a really thick cover installed that blocks out all sunlight. You would still need someone to check the pool regularly but in my experience if you can block out all of the light & debris with a really strong cover, the pool doesn't end up with much water loss , barely any chlorine loss, algae can't grow (due to no sunlight and nothing to eat), etc so maintaining it is much more simple and thus less costly.
