a friend of mine had a dog like the way yours sounds and she got a bog behavoulest in to help sort the problem he came in her home and help her with all the dogs problems and it worked after a few month of traning and years of her keeping it up he like a diffent dog hes not perfact but better she can live with him and so can her friend and family maby you should try that it dosent work for everyone but it did for her and the best bit is she leant to train the dog with the person not someone elce training him for her but he was a mixbread dog hope this helps and hope your problem gets sorted too