The financial transactions of the Secretary incident to or arising out of the guarantee or insurance of loans and surety bonds, and the acquisition, management, and disposition of property, real, personal, or mixed, incident to such activities, shall be final and conclusive upon all officers of the Government. With respect to matters arising out of the guaranty or insurance program authorized by this subchapter, and notwithstanding the provisions of any other laws, the Secretary may—
subject to the specific limitations in this subchapter, consent to the modification, with respect to the rate of interest, time of payment on principal or interest or any portion thereof, security, or any other provisions of any note, contract, mortgage, or other instrument securing a loan or surety bond which has been guaranteed or insured hereunder;
subject to the specific limitations in this subchapter, pay, or compromise, any claim on, or arising because of any loan or surety bond guaranty or insurance;
subject to the specific limitations in this subchapter, pay, compromise, waive, or release any right, title, claim, lien, or demand, however acquired, including, but not limited to, any equity or right of redemption;
purchase at any sale, public or private, upon such terms and for such prices as he determines to be reasonable, and take title to property, real, personal, or mixed; and similarly sell, at public or private sale, exchange, assign, convey, or otherwise dispose of such property; and
complete, administer, operate, obtain, and pay for insurance on, and maintain, renovate, repair, modernize, lease, or otherwise deal with any property acquired or held pursuant to the guaranty or insurance program authorized by this subchapter.