Sounds like you need some good watchdogs. Belgian Malinois are great dogs and probably a good fit for your situation.
I worked on a farm and they had two Belgian Malinois. Great watch dogs, great companions and protectors. Those dogs probably saved my life chasing away whatever came close to my campsite while I slept. Then one day they broke into a storage shed and got into the poison for rodents. One dog Norma went off into the woods and died on her own. The other one Joanne she died in my arms. It was so fucking sad and I think about those dogs often.
