You have a maid do it. If you have your own maid, you send her to the apt and let her spend 1-2 hrs there. Replenish with cleaning supplies and toileteries. If convenient to MRT, she can go there herself. Usually, I already have the cleaning supplies at the apt, (eg. mop. bucket, broom, etc). when the tenant wants to clean up, they can use it. Otherwise, the maid will use those to clean. She will bring toilet paper, clean, mop, do the laundry like wash the bed sheets and pillow cases. If you want a good thorough cleaning, then at least 2 hrs. But this only happens when the tenant moves out. Its not a daily service. There is also a cleaning fee that I charge for the tenant. Unfortunately, its not a lot. Its like only $21. In other countries, the cleaning fee can be $100. Its a one time cleaning fee charge. Neighbours don't complain, they are doing the same too. Or at least they have regular tenants. If its only men going in and out of the apt at all hours of the day, then you will see the neighbours start to complain.
So it's not daily housekeeping. How long do they usually stay? Looks like alot of work to clean , mop and wash bedsheets etc after tenants leave. If they don't stay long it's not worth the extra work, especially when no maid. Why cleaning fee so low? $21 can't hire part time cleaner.