Legal Definition of vested. 1  1 : fully and absolutely established as a right, benefit, or privilege : not dependent on any contingency or condition; specifically : not subject to forfeiture if employment terminates before retirement vested pension benefits. 2  2 : having a vested interest a vested employee a vested beneficiary.
Thomas Jefferson was the President when the Louisiana Purchase  transaction was negotiated. The people who actually signed the  Purchase Treaty were James Monroe, Robert Liv â¦ ingston, and Barbe  Marbois.
When Thomas Jefferson purchased the Louisiana Territory from France, he altered the shape of a nation and the course of history. The Louisiana Purchase nearly doubled the size of the United States and the cost of about four cents an acre was a breathtaking bargain. (The Granger Collection, New York).By Joseph Harriss.he Louisiana Purchase nearly doubled the size of the United States and the cost of about four cents an acre was a breathtaking bargain.