This bill, titled the Disposing of Inactive Structures and Properties by Offering for Sale And Lease Act (DISPOSAL Act), mandates the Administrator of General Services (GSA) to dispose of six specific Federal buildings located in Washington, D.C. These disposals can occur through a sale for fair market value at highest and best use or by entering into a ground lease with a term of up to 99 years. The Administrator is granted significant discretion to approve transactions under terms and conditions deemed in the best interests of the United States, which may include relocating federal agencies or a short-term leaseback of up to five years. Crucially, these mandated disposals are exempt from several federal requirements , including provisions of the McKinney-Vento Homeless Assistance Act, the National Environmental Policy Act, and the National Historic Preservation Act. The bill explicitly prohibits the sale or ground lease of these Federal buildings to any foreign person, foreign entity, or any entity with a foreign beneficial owner . Net proceeds from these disposals will first cover implementation costs, including agency relocation, with any remaining funds deposited into the general fund of the Treasury to reduce the deficit. The Administrator has sole authority for selecting relocation sites for affected agencies, though consultation with agency heads is required, and "build-to-suit" leases are prohibited. Furthermore, the GSA Administrator may add up to 20 additional Federal buildings per calendar year to the disposal list if they are under GSA jurisdiction and have been utilized below 60 percent for the preceding year. Specific conditions apply to exemptions for these additional buildings, such as a minimum size for McKinney-Vento exemption or National Historic Landmark status for historic preservation exemption. The authority provided by this Act is set to terminate on December 31, 2028.