How can my husband and I get out of a lease agreement?

We leased a puppy from a store BFF Puppies at the Orange Park Mall Fl. It came to our attention that they are part of a puppy mill. Saw it on the news First Coast News last week. The owner Sharon Welsh inboxed me through Facebook this is what she texted “Would you please go to Google and do a review for us on BFF Puppies? We would greatly appreciate it. We have been attacked by rescue organizations. Thank you” I was surprised that an owner of a store would do that, knowing you did something wrong now she needs back up I ask could we get out of the lease agreement for the dog. She said no. I’m upset that they are associated with people who are involved in a puppy mill situation. I want to return the dog as well. She said no on that one. How can my husband I get out of a lease agreement who we thought was a good company to support? At times my husband and I go to the store and the smell is terrible. They double up the puppies the units. And the store stays packed with puppies.