IDK about GA laws but gamefish is illegal to keep without permits in most parts of US certain times of the year for certain kinds of gamefish with limits on how many you can keep/take out of the water per the size requirements.
Otherwise I've had perch, bluegills/crappies/panfish/ muskies, smb and lgmb walleyes all coexist peacefully JUST FINE. Make sure its cool for the the walleyes. They're def happier with cooler temperatures vs warmer ones.
The key is to keep the tank fully stocked with many feeder minnows at same time of different sizes.
Otherwise I've had perch, bluegills/crappies/panfish/ muskies, smb and lgmb walleyes all coexist peacefully JUST FINE. Make sure its cool for the the walleyes. They're def happier with cooler temperatures vs warmer ones.
The key is to keep the tank fully stocked with many feeder minnows at same time of different sizes.