I have the exact same issue with a recently adopted Schnauzer. I have two Labs - male and female. The Schnauzer was adopted in June. The dogs all get along great together and everything was fine until about a month ago. The Schnauzer started peeing on everything. He will pee outside and then come back in and hike his leg on my furniture.
Any suggestions? This dog is so sweet and I don't want to give him away but I am tired of finding and cleaning up pee. ... View related article.