Reframing roof with additions done all wrong. Help!
I am a contractor as well as an avid DIYer. I bought the house next to my home that is falling down and am trying to restore it. I am working on my drawings to submit for permits as well as analyzing what I need to do to fix some of the major mistakes made by various people over the last century of this house's life.
The house is two stories and is rather large (for humble me, it's about 2,000 sqft). It seems like the origional house was only around 600 square feet and then someone added a front section that nearly doubled that plus an upstairs that covered all of the added front plus more than half of the back. The old house had a gable end roof. The new 2 story addition has a big gambrel roof. What appears scary to me is how the origional gable end roof was chopped up to connect it to the gambrel roof. Here are three sketchup models of the problem area.
One more note about these images before the question: you can't see it in the images clearly, but there are tacked on supports under the rafters in the problem area that go down the floor joists. So, basically, the load of that roof is bearing down on the floor joists. Then, there is also the load of the back of the house that is more/less hanging on the floor joists as well.
Here are the questions: has anyone ever seen anything like this? Is this even partially okay? I assume that this is not okay and I have never seen anything like this before. I assume that I need to install something like a ridge beam to carry the load of this roof. But, the ridge beam would go through the dormer, or I would have to install some sort of load bearing wall that goes down to a footing in the basement.
I am in the process of locating an architect to help me with this, but I would love to get anyone's input possible. Thanks in advance.