Pound chicken cutlets to about 1/4 inch thick for even cooking.
Season both sides with 1 tsp salt, pepper, paprika, and garlic powder.
Set up three shallow dishes: flour in one; eggs whisked with milk in another; breadcrumbs mixed with parsley and remaining salt in the third.
Dredge each cutlet in flour, shaking off excess. Dip in egg, then press into breadcrumb mixture until well coated.
Rest breaded cutlets on a rack for 5–10 minutes so the coating adheres.
Heat about 1/4 inch of oil in a large skillet over medium-high until shimmering (around 350°F).
Fry cutlets in batches, 2–3 minutes per side, until deep golden and cooked through.
Drain on a wire rack or paper towels. Sprinkle a pinch of salt while hot.
Drizzle with lemon juice, garnish with parsley, and serve immediately.