Print Home > Allstate – Duke May | Hall, MD Allstate – Duke May | Hall, MD 30122 Three Notch Rd, Charlotte Hall, MD 23077 Three Notch Rd, California, MD 301-884-7122 301-737-0219 Address:30122 Three Notch Rd, Charlotte Hall, MDPhone:301-884-7122Web Site:http:// View Larger Map