Slater is an aspiring therapy dog, and so far he's rocking his program.

With Humane K9, Inc. trainer Marni Bellavia, the 2-year-old pup has practiced staying calm in busy restaurants, accepting affection from strangers, and remaining in the sitting position while his owners enjoy dinner. At this rate, he could become a certified therapy dog in the spring.

In fact, in her decades of experience training dogs, Bellavia says Slater "far exceeds" other students with his great temperament and ability to get along with other dogs. However, all this may not matter in Miami-Dade County: Slater is a pit bull, a breed that has been banned from living in Miami-Dade for the past 23 years.

“It’s the worst feeling in the world," Bellavia said. "It’s discrimination on every level.”

Slater is also the face of the renewed fight between animal advocates and lawmakers, thanks to his famous owners and a sly move by county legislators to include a repeal of the ban on the August 14 ballot. In exchange for state lawmakers dropping a bill that would outlaw breed-specific legislation in Florida, the county pledged to leave it up to local voters. The only Florida county to ban any dog breeds, Miami-Dade has outlawed pit bulls since 1989, with local officials arguing that they are inherently dangerous.

Slater is one of four dogs living with Miami Marlins pitcher Mark Buehrle, who is known not only for his skills on the mound but also for his and his wife Jamie’s animal advocacy, which kicked into high gear when they found out they couldn't live with Slater in Miami-Dade County. When the left-hander signed with the Marlins in December 2011, the couple moved their two small children and four dogs -- they also have three vizslas -- to Southwest Ranches in Broward County. Even when the Buehrles searched for a place to live in Broward, they faced homeowner's associations with bans and biases against the breed.

Ever since, the couple has been working to educate Miami-Dade residents about the upcoming vote to lift the ban on pit bull breeds.

Check out photos of Jamie Buehrle and Slater (story continues below):

Loading Slideshow...
  • <a href="http://www.MarniBellavia.com" target="_hplink">Photo by Marni Bellavia</a>

  • <a href="http://www.MarniBellavia.com" target="_hplink">Photo by Marni Bellavia</a>

  • <a href="http://www.MarniBellavia.com" target="_hplink">Photo by Marni Bellavia</a>

  • <a href="http://www.MarniBellavia.com" target="_hplink">Photo by Marni Bellavia</a>

  • <a href="http://www.MarniBellavia.com" target="_hplink">Photo by Marni Bellavia</a>

  • <a href="http://www.MarniBellavia.com" target="_hplink">Photo by Marni Bellavia</a>

  • Jamie Buehrle, Slater

    In this Friday, June 29, 2012 photo, Jamie Buehrle, wife of Miami Marlins pitcher Mark Buehrle, poses with her American Staffordshire Terrier named Slater at Vista View Park in Davie, Fla. Miami-Dade County voters will decide Aug. 14 whether to keep a 23-year-old pit bull ban on the books. Buehrle has joined pit bull advocates pushing to overturn the Miami-Dade ordinance. (AP Photo/Wilfredo Lee)

  • Gary Boyett, Welkins Joseph

    In this Friday, June 29, 2012 photo, Miami-Dade County Animal Services investigator Gary Boyett, right, pets two dogs being kept at the home of Welkins Joseph, left, during an inspection, after a neighbor had told authorities that Joseph was keeping aggressive pit bulls on his property in Miami. In Miami-Dade County, owning American pit bull terriers, American Staffordshire terriers, Staffordshire bull terriers or any dog substantially conforming to any of these breeds' characteristics has been illegal since 1989. (AP Photo/Wilfredo Lee)

  • Gary Boyett, Welkins Joseph

    In this Friday, June 29, 2012 photo, Miami-Dade County Animal Services investigator Gary Boyett, right, looks on as Welkins Joseph brings out one of two dogs kept on his property in Miami for inspection. In Miami-Dade County, owning American pit bull terriers, American Staffordshire terriers, Staffordshire bull terriers or any dog substantially conforming to any of these breeds' characteristics has been illegal since 1989. (AP Photo/Wilfredo Lee)

  • Gary Boyett

    In this Friday, June 29, 2012 photo, Miami-Dade County Animal Services investigator Gary Boyett looks at a pit bull being held at the county shelter in Medley, Fla. In Miami-Dade County, owning American pit bull terriers, American Staffordshire terriers, Staffordshire bull terriers or any dog substantially conforming to any of these breeds' characteristics has been illegal since 1989. If these breeds wind up in the county shelter, they are eligible for adoption outside the county; otherwise they can be euthanized just like any other dog because the shelter doesn't house animals indefinitely. (AP Photo/Wilfredo Lee)

  • Gary Boyett, Welkins Joseph, Dubbie

    In this Friday, June 29, 2012 photo, Miami-Dade County Animal Services investigator Gary Boyett, right, evaluates a dog named Dubbie to to determine whether a dog conforms to the county's definition of a pit bull, as Welkins Joseph, left, holds its mouth in during an investigation in Miami. In Miami-Dade County, owning American pit bull terriers, American Staffordshire terriers, Staffordshire bull terriers or any dog substantially conforming to any of these breeds' characteristics has been illegal since 1989. (AP Photo/Wilfredo Lee)

Under the county’s breed-specific legislation, owners of "pit bulls" -- specifically, American Staffordshire Terriers, Staffordshire Bull Terriers and Bull Terriers -- face a $500 fine and a court action to remove the dog from the county. The legislation, which is based on physical descriptions from the American Kennel Club, has proven nearly impossible to enforce, drawing criticism from the Humane Society, the American Veterinary Medical Association and other animal experts.

Jamie Buehrle said that even before the couple adopted Slater, breed-specific legislation was a hot topic for them. Now, it’s more important than ever.

“To me now, it’s personal,” she told HuffPost.

It was through her work at an animal nonprofit that she met Slater, who was a stray. The family had never owned a pit bull and immediately fell in love. Oddly enough, when the Buehrles have guests over, they have to warn them about one of the vizslas. Slater, on the other hand, loves children and giving kisses.

“He’s laid-back, curious, loves to look around,” Jamie Buehrle said. “He loves kids.”

The Internet is filled with websites demonizing pit bulls and advocating for breed-specific legislation. While the American Veterinary Medicine Association conducted a study of dog bites from 1979 to 1998 and found that pit bulls were responsible for the most bites, the data does not include a tally of how many dogs of a specific breed are in a community. The Humane Society of the United States points out that it's possible there are more pit bulls than other breeds in certain areas, accounting for the higher number of bites. What's more, since there is no central agency that collects dog bite information, numbers aren't guaranteed to be accurate.

"Restrictions placed on a specific breed fail to address the larger problems of abuse, aggression training, and irresponsible dog ownership," reads a statement from the Humane Society, which argues for "thoughtful" legislation that addresses responsible dog-keeping. "Breed alone is not an adequate indicator of a dog's propensity to bite."

AVMA made a similar point in its study, cautioning that “because of difficulties inherent in determining a dog's breed with certainty, enforcement of breed-specific ordinances raises constitutional and practical issues. Fatal attacks represent a small proportion of dog bite injuries to humans and, therefore, should not be the primary factor driving public policy concerning dangerous dogs.”

Bellavia, Slater's trainer, has trained many breeds of dogs, big and small, to become therapy dogs. Even though each breed has some general characteristics, she said a dog's temperament is the determining factor in its success as a therapy dog -- not its breed.

“Terriers are great learners because they’re so eager to learn,” she said. “Dogs just want to please you.”

With just days leading up to the vote, Jamie Buehrle is attending pet events and trying to bring up the topic in conversation with as many people as she can. She said she sees a light at the end of the tunnel for dogs like Slater.

Lifting the ban would "put the responsibility back on the owner,” she said, smiling. “I’m actually getting hopeful.”