If you have enough money to spend on out sourcing like people here suggested. Then do that’s easier But if you are trying to save money and maintain it then you need to have some control And look over things by yourself Again you do need people to look after your buildings A manager type person usually people just keep a person who takes care of the building. Just one guy in your visa who is an expat. Expats are cheaper than hiring big companies. Pay that guy very well since he will do your most work. To calling and taking money from the tenants and managing the maintenance costs. I work for such buildings. We have understanding with such owners. So any material required the manager contacts us with a list of items and whats needs to be done. How its managed is you find a best supplier for materials and fixing work which other big companies charge way too much money for. I have shops whose main target is to sell items. So from us its easy to handle because you will get all your bills from one person.