I checked and she's not licensed by the USDA. If she's breeding and selling puppies from her trailer directly to the consumer, she's exempt from the Animal Welfare Act. If she's a broker, as K&C's mom suspects, she is required to be licensed with the USDA.
I agree with K&C's mom. It's unlikely that she is breeding that many dogs in a trailer. If she is, she probably is violating local laws and you could report her for that. If she is in violation of the AWA for brokering w/o a license, I'd suggest filing a complaint with the USDA.
How did you find out about her? Did she have a website? If you could give us a little more information, maybe we can help you figure out what else to do.