It depends on who the primary owner is. If they are, they can do or sign anything if they are dishonest.
Your only recourse is court or one of the RipOff reports to warn others and hopefully get your dog or money back. There are a lot of crooks in the dog business.

I have heard from show breeders, but don't know if it's true that they can take an AKC limited registration and register it UKC and then back to AKC for full.