by the United States government

“ If the trustee rejects an executory contract of the debtor for the sale of real property or for the sale of a timeshare interest under a timeshare plan, under which the purchaser is in possession, such purchaser may treat such contract as terminated, or, in the alternative, may remain in possession of such real property or timeshare interest. ”

“ Notwithstanding a provision in an executory contract or unexpired lease of the debtor, or in applicable law that terminates or modifies, or permits a party other than the debtor to terminate or modify, such contract or lease or a right or obligation under such contract or lease on account of an assignment of such contract or lease, such contract, lease, right, or obligation may not be terminated or modified under such provision because of the assumption or assignment of such contract or lease by the trustee. ”

“ This subsection shall not be deemed to affect the trustee’s obligations under the provisions of subsection (b) or (f) . Acceptance of any such performance does not constitute waiver or relinquishment of the lessor’s rights under such lease or under this title. ”