Season chicken cavity with salt and pepper. Halve 2 garlic cloves and place in cavity with 2 bay leaves. Rub chicken with rosemary; sprinkle with salt and pepper. Heat oil in heavy large oven proof skillet over high heat. Add remaining garlic and stir for 30 seconds. Add chicken, potatoes, and 2 bay leaves. Season potatoes with salt and pepper. Brown chicken on all sides. Squeeze lemon juice over chicken and vegetables. Place skillet at 375 degrees and bake for 1 hour until juice run clear, basting occasionally. Serve with pan juices (degrease them first).
NOTE: Roast garlic is excellent. Flavor is very different from raw garlic - almost a sweet taste. Good smashed on French bread.