I highly recommend Rob from Trainrite.
We recently took on a rescue Rottie, Santos, he had strong guarding issues which led him to be aggressive with other people, dogs and anything that moved or made a noise when out walking. It eventually became so bad that we were frightened to walk him .
After one hour with Rob, he corrected our mistakes, and we now have a completely different situation when out walking.
Santos is now a calm and responsive work in progress. After one month of consistently following Rob’s instructions, we now enjoy our walks together without having to avoid people or other dogs. It’s for this reason that we just wanted to say a big thank you to Rob, and would afford him the highest recommendation.