GSA Path to Privatization Act - Requires the Director of the Office of Management and Budget (OMB) to: (1) establish and conduct a pilot program to be known as the Federal Real Property Management Privatization Pilot Program to allow certain federal agencies to contract with the private sector to plan, acquire, manage, and dispose of leased federal property; (2) develop a management plan for such program; (3) issue guidance to federal agencies on participation in the program; and (4) issue a solicitation for contracts with the private sector for services under the program. Terminates the program 15 years after the enactment of this Act.