My wife and I are giving some thought on removing our overhead soffits then replacing our cabinets with taller units. I am wondering what my be lurking inside the soffits that would be extra work. For example, does anyone think that the exhaust from our stove could be running through there, or is the placement of exhaust ducks dictated by code to go along the floor joists to the outside? I measured the hole to the exhaust on the outside of our house, and it seems that it is between the second floor boards and the ceiling wallboard. It matches the same height as our bathroom exhaust. I know there will be at least one set of wires in the soffit as we just had new can lighting installed. We had the electrician remove the light over the sink right next to the window and the wall and replaced it with several cans out more towards the countertop centers where most of the cooking prep is done. How should I terminate that line? Is a journal box with a plate enough? Thanks!