bad contractor

I just had issues with the contractor because he removed probably 90% of a joist which you can see in the second attached picture. The first attached picture was where the joist butted up to a support joist where the shower used to be. When asking the contractor about removing so much material...

Hey everyone, Hope you guys here can help because I don't have faith in my contractors plumbing skills. He's tried to use sanitary tees horizontal, told me to vent out the bottom of the outside wall for a kitchen island sink, never heard of a island loop ven, and handful of other other things...

Okay kids, get comfy; long story. Thank you in advance to anyone who gets through it and comments. I love you. September 2016: We move into our new house, built in 1952, remodeled extensively in 2008 by homeowner, a "soil engineer". Yep, we bought an engineer's house. First red flag. We did...