The Feds should be selling that land and not leasing it.
And when you lease land, you do not always have full property rights.
Your lease is an agreement with the proprty owner allowing you full access to the property as long as you fulfill your payment obligations. Neither party is allowed to arbitrarily revoke the contract, but must follow the lease agreement. The gov is breaking arbitrarily breaking the lease contract
This is blatantly illegal.
sadly, we all just lease our land. Have you tried not paying your rent (property taxes)?