peeing to mark territory...
I recently had this problem with my 9 month old male dog..
I have two dobermans in the house.. One female, one male. Everything I have read says a male dog will reach sexual maturity somewhere around 9-12 months of age... He is now a leg lifter and would " lift his leg" to the edge of the couch.. ( his end of the couch) ... Our puppies are not allowed on the beds, but are allowed on covered furniture.
First off, you have to get some ODOR NEUTILIZER to totally kill the scent on anything he has ever Pee'd on... Washing it is not enough.. The scent will still be there( at least to the dog).. Bleach is not a good idea.. Dont use anything that contains Amonia for cleaning.. It will sometimes draw a dog to pee on it...
I had to resort to using the crate when I wasnt home to watch him " like a hawk". but when I did catch him peeing I gave him the stearn "NO" and potty outside command... And I have a doggie door so I just locked him outside for a little while.. It took about three times, but he now has it figured out.. !@!! and I have also went back to the heavy praiseing ... I praise him for" marking his territory" and just regualar pottys... So far so good... when they are outside " doing the potty" he will pee on top of the spot that my female doberman peed.. Showing that its his woman, I guess..
anyhow good luck.. get some neutilizer.... it works