In a medium bowl, whisk together lime juice, honey, garlic powder, Italian seasoning, lemon pepper, and half of the seasoned salt. Reserve 2 tablespoons of this mixture in a small bowl for glazing later—keep this portion separate from the raw chicken.
Add the chicken thighs to the remaining marinade, turn to coat well, cover, and refrigerate 45 minutes (up to 2 hours for deeper flavor).
Preheat your smoker to 240°F using a mild fruitwood or your favorite pellet. Set a wire rack over a sheet pan.
Lift thighs from the marinade, letting excess drip off, and pat lightly so they’re just barely damp. Arrange on the rack and air-dry 10–15 minutes while the smoker stabilizes; this helps the smoke cling and promotes better browning.
Transfer thighs to the smoker, smooth side up. Sprinkle evenly with the remaining seasoned salt. Smoke at 240°F until the internal temperature reaches about 150°F, 45–60 minutes depending on size.
Increase smoker temperature to 300°F. Brush the thighs with the reserved marinade and continue cooking 15–25 minutes more, until the thickest part reads 168–172°F and the edges are lightly bronzed. Flip once during this stage if you like a touch more color on both sides.
Rest the chicken on a platter, loosely tented, for 8–10 minutes before serving to keep the juices in the meat.
Tip: If your thighs vary in thickness, tuck thin edges underneath to create a uniform shape for more even cooking.