Hello my name is gina and I'm a dog trainer in Wa, I recently acquired a client who was sold two Tibetan Mastiff brothers who are 10 months old. The dogs were purchased in hopes of working together on the family farm as a team, however, there has been an arising pecking order that is getting out of control. The boys can coexist under supervision, but when left alone, they are starting to go after each other. My question; Is it possible, or has anyone been successful raising 2 intact litter mates and have the coexist peacefully? Lastly I think it was a poor decision for the breeder to sell two litter mates knowing the families situation.