Cut chicken into 10 to 12 pieces. Rinse and pat dry. Place the chicken in a large glass dish and squeeze lemon juice over it.
Peel 2 garlic cloves and chop finely. Rub the garlic, salt, and pepper into the chicken. Marinate for 10 to 20 mins
In a frying pan, pour 3/4 cup of the olive oil and heat over medium heat.
Remove the chicken from the marinade and drain well. Place the chicken in the hot oil and brown on both sides.
Remove the chicken from the frying pan and place in a Dutch oven or a covered, deep frying pan. Add the white wine and bay leaf Cover and simmer on low until the wine is reduced.
While the chicken simmers, peel and cut the potatoes into thin round slices or small cubes
In a small frying pan, heat the remaining 3/4 cup olive oil on medium high and fry the potatoes. Remove potatoes and add them to the chicken. If more sauce is desired, add the cup of broth now. Reduce the heat to low and continue to simmer, covered.
Finely chop the parsley and sprinkle over chicken.
Peel the remaining 4 cloves of garlic and cut into thin slices. In the same pan used to brown the chicken, lightly sauté the garlic, and add the hot pepper, if using. Add Spanish paprika, vinegar, and sugar.
Stir, scraping the bottom of the pan. Pour over the chicken. Adjust the seasoning to taste, and serve.