Yes. I do not see how this answers my objection. You still have not provided a way of dividing up the $1000 into money used for maintenance and money taken out as profit, which was the original question. All you've said is that the second component should be equal to 3% or so of the investment; since we have no idea what the investment was, this is unhelpful.

The investment income is the revenue from the renter less expenses in running the building.