(a) An authority shall constitute a public body corporate and politic exercising public and essential governmental functions and having all the powers necessary or convenient to carry out and effectuate the purposes and provisions of this article, including the following powers in addition to others granted by this article: (1) To sue and be sued; to have a seal and to alter the same at pleasure; to have perpetual succession; to make and execute contracts and other instruments necessary or convenient to the exercise of the powers of the authority; and to make and from time to time amend and repeal bylaws, rules, and regulations, not inconsistent with this article, to carry into effect the powers and purposes of the authority; (2) Within its area of operation, to prepare, carry out, acquire, lease, and operate housing projects; to provide for the construction, reconstruction, improvement, alteration, or repair of any housing project or any part thereof; (3) To arrange or contract for the furnishing by any person or agency, public or private, of services, privileges, works, or facilities for, or in connection with, a housing project or the occupants thereof; and, notwithstanding anything to the contrary contained in this article or in any other provision of law, to include in any contract let in connection with a project stipulations requiring that the contractor and any subcontractors comply with requirements as to minimum wages and maximum hours of labor and comply with any conditions which the federal government may have attached to its financial aid of the project; (4) To lease or rent any dwellings, houses, accommodations, lands, buildings, structures, or facilities embraced in any housing project and, subject to the limitations contained in this article, to establish and revise the rents or charges therefor; to own, hold, and improve real or personal property; to purchase, lease, obtain options upon, or acquire by gift, grant, bequest, devise, or otherwise any real or personal property or any interest therein; to acquire by the exercise of the power of eminent domain any real property; to sell, lease, exchange, transfer, assign, pledge, or dispose of any real or personal property or any interest therein; to insure or provide for the insurance of any real or personal property or operations of the authority against any risks or hazards; to procure insurance or guarantees from the federal government of the payment of any debts or parts thereof, whether or not incurred by said authority, secured by mortgages on any property included in any of its housing projects; (5) Subject to any agreement with bondholders, to invest moneys of the authority not required for immediate use to carry out the purposes of this part, including the proceeds from the sale of any bonds and any moneys held in reserve funds, in obligations which shall be limited to the following: (A) Bonds or other obligations of the state or other states or of other counties, municipal corporations, and political subdivisions of this state or bonds or other obligations the principal and interest of which are guaranteed by the state; (B) Bonds or other obligations of the United States or of subsidiary corporations of the United States government fully guaranteed by such government; (C) Obligations of and obligations guaranteed by agencies or instrumentalities of the United States government, including those issued by the Federal Land Bank, Federal Home Loan Bank, Federal Intermediate Credit Bank, Bank for Cooperatives, and any other such agency or instrumentality now or hereafter in existence; provided, however, that all such obligations shall have a current credit rating from a nationally recognized rating service of at least one of the three highest rating categories available and have a nationally recognized market; (D) Bonds or other obligations issued by any public housing agency or municipality in the United States, which bonds or obligations are fully secured as to the payment of both principal and interest by a pledge of annual contributions under an annual contributions contract or contracts with the United States government, or project notes issued by any public housing agency, urban renewal agency, or municipality in the United States and fully secured as to payment of both principal and interest by a requisition, loan, or payment agreement with the United States government; (E) Certificates of deposit of national or state banks located within the state which have deposits insured by the Federal Deposit Insurance Corporation or the Georgia Deposit Insurance Corporation, including the certificates of deposit of any bank, savings and loan association, or building and loan association acting as depository, custodian, or trustee for any such bond proceeds; provided, however, that the portion of such certificates of deposit in excess of the amount insured by the Federal Deposit Insurance Corporation or the Georgia Deposit Insurance Corporation, if any such excess exists, shall be secured by deposit with the Federal Reserve Bank of Atlanta, Georgia, the Federal Home Loan Bank of Atlanta, Georgia, any national or state bank located within the state, or with a trust office within this state, or one or more of the following securities in an aggregate principal amount equal at least to the amount of such excess: (i) Direct and general obligations of the state or other states or of any county or municipality in the state; (ii) Obligations of the United States or subsidiary corporations included in subparagraph (B) of this paragraph; (iii) Obligations of agencies and instrumentalities of the United States government included in subparagraph (C) of this paragraph; or (iv) Bonds, obligations, or project notes of public housing agencies, urban renewal agencies, or municipalities included in subparagraph (D) of this paragraph; (F) Interest-bearing time deposits, repurchase agreements, reverse repurchase agreements, rate guarantee agreements, or other similar banking arrangements with a bank or trust company having capital and surplus aggregating at least $50 million or with any government bond dealer reporting to, trading with, and recognized as a primary dealer by the Federal Reserve Bank of New York having capital aggregating at least $50 million or with any corporation which is subject to registration with the Board of Governors of the Federal Reserve System pursuant to the requirements of the Bank Holding Company Act of 1956, provided that each such interest-bearing time deposit, repurchase agreement, reverse repurchase agreement, rate guarantee agreement, or other similar banking arrangement shall permit the moneys so placed to be available for use at the time provided with respect to the investment or reinvestment of such moneys; (G) Any and all other obligations of investment grade quality having a credit rating from a nationally recognized rating service of at least one of the three highest rating categories available and having a nationally recognized market, including, but not limited to, collateralized mortgage obligations, owner trusts offering collateralized mortgage obligations, guaranteed investment contracts offered by any firm, agency, business, governmental unit, bank, insurance company, corporation chartered by the United States Congress, or other entity, real estate mortgage investment conduits, mortgage obligations, mortgage pools, and pass-through securities; and (H) Securities of or other interests in any no-load, open-end management type investment company or investment trust registered under the Investment Company Act of 1940, as amended, or any common trust fund maintained by any bank or trust company which holds such proceeds as trustee or by an affiliate thereof so long as: (i) The portfolio of such investment company or investment trust or common trust fund is limited to the obligations referenced in subparagraphs (B) and (C) of this paragraph and repurchase agreements are fully collateralized by any such obligations; (ii) Such investment company or investment trust or common trust fund takes delivery of such collateral either directly or through an authorized custodian; (iii) Such investment company or investment trust or common trust fund is managed so as to maintain its shares at a constant net asset value; and (iv) Securities of or other interests in such investment company or investment trust or common trust fund are purchased and redeemed only through the use of national or state banks located within this state having corporate trust powers; (6) Within its area of operation, to investigate into living, dwelling, and housing conditions and into the means and methods of improving such conditions; to determine where slum areas exist or where there is a shortage of decent, safe, and sanitary dwelling accommodations for persons of low income; to make studies and recommendations relating to the problem of clearing, replanning, and reconstructing slum areas, and the problem of providing dwelling accommodations for persons of low income and to cooperate with the city, the county, or the state or any political subdivision thereof in action taken in connection with such problem; and to engage in research, studies, and experimentation on the subject of housing; (7) Acting through one or more commissioners or other person or persons designated by the authority, to conduct examinations and investigations and to hear testimony and take proof under oath at public or private hearings on any matter material for its information; to administer oaths, issue subpoenas requiring the attendance of witnesses or the production of books and papers, and issue commissions for the examination of witnesses who are outside of the state or unable to attend before the authority, or who are excused from attendance; to make available to appropriate agencies, including those charged with the duty of abating or requiring the correction of nuisances or like conditions or of demolishing unsafe or insanitary structures within its area of operation, its findings and recommendations with regard to any building or property where conditions exist which are dangerous to the public health, morals, safety, or welfare; (8) To exercise all or any part or combination of powers granted by this Code section; (9) To invest moneys held in debt service reserve funds or sinking funds not required for immediate use or disbursement in obligations of the types specified in paragraph (5) of this subsection, provided that, for the purpose of this paragraph, the amounts and maturities of such obligations shall be based upon and correlated to the debt service (principal installments and interest payments) schedule for which moneys are to be supplied; (10) To incorporate one or more nonprofit corporations as subsidiary corporations of the authority for the purpose of carrying out any of the powers of the authority and accomplishing any of the purposes of the authority. Any such subsidiary corporation shall be a nonprofit corporation and a public body corporate and politic exercising public and essential governmental functions. Any subsidiary corporations created pursuant to this power shall be created pursuant to Chapter 3 of Title 14, the "Georgia Nonprofit Corporation Code," and the Secretary of State shall be authorized to accept such filings. Some or all of the members of the board of directors of the authority shall constitute the members of and shall serve as directors of any subsidiary corporation and such service shall not constitute a conflict of interest. Upon dissolution of any subsidiary corporation of the authority, any assets shall revert to the authority or to any successor to the authority or, failing such succession, to the city or the county, as applicable. The authority shall not be liable for the debts or obligations or bonds of any subsidiary corporation or for the actions or omissions to act of any subsidiary corporation unless the authority expressly so consents; and (11) To incorporate one or more corporations as subsidiary corporations of the authority for the purpose of carrying out any of the powers of the authority and accomplishing any of the purposes of the authority. Any subsidiary corporations created pursuant to this paragraph shall be created pursuant to Chapter 2 of Title 14, the "Georgia Business Corporation Code," and the Secretary of State shall be authorized to accept such filings. Some or all of the members of the board of commissioners of the authority may serve as directors of any subsidiary corporation and such service shall not constitute a conflict of interest; provided, however, that no member of the board of commissioners of the authority shall be eligible to serve as a director of any subsidiary corporation if that member has any financial interest in the subsidiary corporation. Upon dissolution of any subsidiary corporation of the authority, any assets shall be distributed to the authority as the sole shareholder or to any successor to the authority or, failing such succession, to the city or county, as applicable. The authority shall not be liable for the debts, obligations, or bonds of any subsidiary corporation or for the actions or omissions to act of any subsidiary corporation unless the authority expressly so consents. (b) No provisions of law with respect to the acquisition, operation, or disposition of property by other public bodies shall be applicable to an authority unless the legislature shall specifically so state. (c) No loan made by an authority to an entity with which the authority has entered into a private enterprise agreement shall be deemed usurious or otherwise in violation of Code Section 7-4-17 so long as such loan complies with Code Section 7-4-18 .