I'm pretty optimistic about biped robots for this. Either you buy or lease one and a cleaning service teleoperates it, or subscribe to a cleaning service that drops it off and teleoperates for a few hours a week. Suppose it could even walk itself to the next customer if close enough.
If a wheeled low-profile vacuum that stays in a room is too hard to deliver, surely we can fix it by making it walk around and grasp a vacuum cleaner and walk between houses.
