I recently adopted a dog from an animal rescue society. While she was listed as a mix of breed X on the rescue society's website, her veterinary paperwork shows "Pit Mix" as her predominant breed.
While she has a few features that might suggest pitbull, to my untrained eye, she looks more like breed X. For example, she has a much longer snout than any pitbulls I've seen.
As far as I've read, identifying mixed breeds by eye is subject to a lot of error anyway. The "Pit Mix" designation limits where we can rent and even what towns we can live in, so we'd like to try to change it. Let me just add that she has a very calm and gentle temperament and that we plan to go to professional training with her. We live in a Midwestern US state.
Does anyone have experience changing a dog's breed designation? Is it simply a matter of finding a sympathetic veterinarian?