Notwithstanding any other provision of law relating to the acquisition, handling, or disposal of real property by the United States, the Secretary shall have power to deal with, complete, rent, renovate, modernize, insure, make contracts or establish suitable agencies for the management of, or sell for cash or credit, in his discretion, any properties conveyed to him in exchange for debentures and certificates of claim as provided in this subchapter; and notwithstanding any other provision of law, the Secretary shall also have power to pursue to final collection, by way of compromise or otherwise, all claims against mortgagors assigned by mortgagees to the Secretary as provided in this subchapter, except that no suit or action shall be commenced by the Secretary against any such mortgagor on account of any claim so assigned with respect to mortgages insured under section
1738 of this title unless such suit or action is commenced within six months after the assignment of such claim to the Secretary, or within six months after the last payment was made to the Secretary with respect to the claim so assigned, whichever is later: Provided, That section
5 of title
41 shall not be construed to apply to any contract for hazard insurance, or to any purchase or contract for services or supplies on account of such property if the amount thereof does not exceed $1,000. The power to convey and to execute in the name of the Secretary deeds of conveyances, deeds of release, assignments, and satisfactions of mortgages, and any other written instrument relating to real property or any interest therein heretofore or hereafter acquired by the Secretary pursuant to the provisions of this chapter, may be exercised by an officer appointed by him, without the execution of any express delegation of power or power of attorney: Provided, That nothing in this subsection shall be construed to prevent the Secretary from delegating such power by order or by power of attorney in his discretion, to any officer, agent, or employee he may appoint.