(1) Each municipality and the authority are hereby authorized to issue at one (1) time or from time to time revenue bonds for the purpose of paying all or any part of the cost of any of the purposes authorized by this chapter. The principal of, premium, if any, and the interest on such bonds shall be payable solely from the respective funds herein provided for such payment. The bonds of each issue shall bear interest at such rate or rates as may be determined by the issuer, provided that the bonds of any issue shall not bear a greater overall interest rate to maturity than that allowed in Section 75-17-103, Mississippi Code of 1972. The bonds of each issue shall be dated and shall mature in such amounts and at such time or times, either as serial bonds or term bonds or a combination of serial and term bonds, not exceeding fifty (50) years from their respective date or dates, as may be determined by the governing board of the issuer, and may be made redeemable before maturity at such price or prices and under such terms and conditions as may be fixed by the governing board of the issuer prior to the issuance of the bonds. The governing board of the issuer shall determine the form and the manner of execution of the bonds, including any interest coupons to be attached thereto, and shall fix the denomination or denominations of the bonds and the place or places of payment of principal and interest, which may be at any bank or trust company within or without the state. In case any officer whose signature or a facsimile of whose signature shall appear on any bonds or coupons shall cease to be such officer before the delivery of such bond, such signature or such facsimile shall nevertheless be valid and sufficient for all purposes the same as if he had remained in office until such delivery. The governing board of the issuer may also provide for the authentication of the bonds by a trustee or fiscal agent. The bonds may be issued in coupon or in fully registered form, or both, as the governing board of the issuer may determine, and provisions may be made for the registration of any coupon bonds as to principal alone and also as to both principal and interest, and for the reconversion into coupon bonds of any bonds registered as to both principal and interest, and for the interchange of registered and coupon bonds. No bond shall bear more than one (1) rate of interest. All bonds of the same maturity shall bear the same rate of interest from date to maturity. All interest accruing on such bonds so issued shall be payable semiannually or annually, except that the first interest coupon attached to any such bond may be for any period not exceeding one (1) year. All bonds issued pursuant to this chapter shall be advertised and sold on sealed bids in the manner provided under the provisions of Section 31-19-25; provided that on bond sales in excess of Five Million Dollars ($5,000,000.00) the authority may sell its bonds by negotiated sale at not less than ninety-eight percent (98%) of par, plus accrued interest, when the authority has employed a qualified financial advisor for the proposed bond issue. The duties of the financial advisor shall include the responsibility of preparing a statement to be submitted to the Governor, the Chairman of the House Ways and Means Committee and the Chairman of the Senate Finance Committee which shall clearly set forth the reasons why the negotiated sale was considered to be in the best interest of the authority and member municipalities, including the estimated savings in cost by selling the bonds at a negotiated sale.