When I got my 4 month old Rottie he was chewing my baseboards and driving me up the wall. On walks he had to smell and eat everything we came across. My vet recommended we have an assessment by Lorenzo's (it's where she trained her dogs).
Nathan Lochner came to our house and listened to us bumble on about how we were trying to train our "Monster." Then he put a training collar and leash on "Monster" and just walked around the couch a few times. Then he told our dog to sit, then lay down and stay. AND HE DID!!! We were blown away!!
After completing the Basic Training we decided to do the off leash training. And now we have a dog that our whole neighborhood knows as "The Good Dog." "Monster' is only a monster because he is huge, not because of his behavior. I have people asking me all the time if I am a trainer because my dog is so well behaved. I just smile and say, "No, but I know a great one!!"