hmmmm....tough decision. Housebreaking an older dog that has been outside most of his life is easier than trying to housebreak a dog that has been allowed to pee in the house. Dogs are conditional animals which means they do what they do because it becomes a pattern. If he has always done his business on grass he will want to continue to do his bathroom business on the grass. For you this would be a plus because he will be so much easier to housebreak. However because he is a male he might have the urge to mark in the house. This is easy to train, just follow him around the house for a week and whenever he lifts or thinks of lifting his leg shout "no". I have done this with many foster dogs. Also provide him with plenty of potty breaks during the day. I also suggest crate training the dog so you can lock him in the crate when you cannot watch him. Basically you will be training him like a puppy but his bladder is bigger so able to hold it longer!
owned by BratBoy ^see avatar