Black Owned is exactly what you think it means. You are voluntarilly surrendering control of yourself physically, sexually, socially, and financially to your Master.
This may mean different things to different people. I dont need money, so my slave couple didnt have to contribute to my upkeep, but I used them extensivly sexually, controlled them physically in their home, made decisions about their social lives, and abused them mentally.
This is what you are signing up for: to become a thing owned for anothers amusement, whatever that means.