The house is a 1986 split-level. We want to remove the wall between the two 'back' bedrooms (at the end of the hall). In one room it's closet, in the other it is a wall with duct returns. I'm not sure if this is a load bearing wall. I would also like to knock out the ceiling to the roof level (in this master bedroom only) so as to put in skylights. Is this possible? Thank You.