Sprinkle chicken with salt and pepper. Melt margarine in baking dish; add garlic and paprika. Turn chicken in mixture coating evenly. Cover dish loosely with foil. Bake at 375 degrees F for 30 minutes.
Mix sour cream and mayonnaise; coat chicken with mixture. Cover; bake for 20 minutes longer.
Sprinkle with grated parmesan cheese. Place under broiler. Broil until brown, approximately 10 minutes.