what is a letter of administration or testamentary
Letters of Administration Letters of Administration are granted by a Surrogate Court or probate registry to appoint appropriate people to deal with a deceased person's estate where property will pass under Intestacy Rules or where there are no executors living (and willing and able to act) having been validly appointed under the deceased's will. Traditionally, letters of administration granted to a representative of a testate estate are called "letters of administration with the will annexed" or "letters of administration cum testamento annexo" or "c.t.a.".
United States federal executive departments The heads of the executive departments receive the title of Secretary of their respective department, except for the Attorney-General who is head of the Justice Department (and the Postmaster General who until 1971 was head of the Post Office Department). The heads of the executive departments are appointed by the President and take office after confirmation by the United States Senate, and serve at the pleasure of the President. The heads of departments are members of the Cabinet of the United States, an executive organ that normally acts as an advisory body to the President. In the Opinion Clause (Article II, section 2, clause 1) of the U.S. Constitution, heads of executive departments are referred to as "principal Officer in each of the executive Departments".