Both; and pay an attny, its worth it, cause if you screw something up it may negate the whole thing
Be sure any attorney you may go to has a specialty in wills, trusts, and power of attorney. You may want a P O A for medical problems. If you become ill and no one is designated as POA for medical decisions, you can get screwed. My POA for medical decisions spells specifically what is to be done if I become unable to make my own decisions and one son and one daughter are named to make that decision according to my written decision...including that I am not to be put on machines or IV medication that is used JUST to keep the body alive...