Older dogs who weren’t trained as puppies are more likely to have ingrained behaviors — and the longer they’ve had them, the longer it will take to undo them. “If your dog has been pulling on leash for the last eight years, you cannot undo this in one training session,” Trott says.
Essentially, the training tips are the same as for a young puppy, but you’re likely to need a lot more patience. As Trott says, a puppy is a “blank slate,” whereas an older dog has already rehearsed unwanted behaviors many times.