Constitutional Land Acquisition Act - Amends the Land and Water Conservation Act of 1965 to provide protection to real property owners whose property is: (1) within the boundaries of a Federal unit as a consequence of the acquisition of lands for that unit with amounts made available under the Act; or (2) adjacent to Federal lands acquired with such amounts. Specifies property acquisition and congressional, State, and local government notification requirements. Prohibits the use of funds under the Act for property acquisition by condemnation. Prescribes conditions for the use of acquired property for other than public outdoor recreation purposes.