Louie may boast a mighty heart, but his knees are weak and will need two separate surgeries. He'll be administered steroids in the days ahead, as well as heartworm medication.
It will be at least six months before he will be ready for his forever home.
Meanwhile Louie's ex-owner, a man named Martin Luther King, was charged with dogfighting, to go along with 11 counts of cruelty to animals.
"To have a name like that - a guy who was all for equality and rights and was such a peaceful person who did things the right way," Flatt says.
He's currently looking to buy a 14-acre tract of land behind his existing property of 16 acres in Dallas.
"I'm trying to build the country's first hardcore pit bull shelter," he says.
Flatt's plan calls for a multimillion dollar, 20,000-square-foot building.
It will feature a swimming pool, indoor and outdoor play areas and runs, as well as veterinary and grooming stations.
A part of that facility will be dedicated to former fighting dogs as a sanctuary for those seized in raids.