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.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.