@Peter , as per your post:
Our Tenants would tell us that they had a “Poodle” and it would be a “Pit Bull”. I guess that they both start with “P”, but beyond that they are totally different breeds.
We found that it is much easier to just limit the weight of the dog.
We have limited the weight at 30 pounds at full maturity.
We have the Tenants provide us with documentation from the Vet showing shots up to date along with the dog’s weight.
Getting official documentation of a dog’s breed would probably require genetics testing as there are a lot of mixed breeds.
Neither our Tenants nor us have the time nor money to get genetics testing.
We wish you the very best!