Section 11. (a) Each certificate required by sections eight to sixteen, inclusive, to be filed in the office of the secretary of state shall be executed in the following manner:
(1) an original certificate of limited partnership must be signed by all general partners;
(2) a certificate of amendment must be signed by at least one general partner and by each other general partner designated in the certificate as a new general partner; and
(3) a certificate of cancellation must be signed by all general partners.
(b) Any person may sign a certificate by an attorney-in-fact, but a power of attorney to sign a certificate relating to the admission of a general partner must specifically describe the admission.
(c) The execution of a certificate by a general partner constitutes an affirmation under the penalties of perjury that the facts stated therein are true.