Real Estate Operating Company - REOC

They operate buildings. Fix the washing machine #4 leak downstairs before it floods. Call the plumber for the backed up toilet in apartment 7-D. Get the gardener to actually mow the lawn instead of smoke it. Turn off the alarm when it rings if there's no reason for it to be on. Let new tenants see 11F after the blood is cleaned up and the apartment's ready to be shown again. Let Mrs. Windsor in her front door and charge her $40 for forgetting her key...again.

That's what an operating company does. They manage the building, the day-to-day operations of it, for the landlord. Good work if you have the patience of Job. And know how to fix a washing machine.