The practice of law in this state is defined as: (1) Representing litigants in court and preparing pleadings and other papers incident to any action or special proceedings in any court or other judicial body; (2) Conveyancing; (3) The preparation of legal instruments of all kinds whereby a legal right is secured; (4) The rendering of opinions as to the validity or invalidity of titles to real or personal property; (5) The giving of any legal advice; and (6) Any action taken for others in any matter connected with the law.