(1) Preside at all meetings of the city council;

(2) Be the head of the city for the purpose of service of process and for ceremonial purposes, and be the official spokesperson for the city and the chief advocate of policy;

(3) With the advice and consent of the city council, appoint and remove all officers, department heads and employees of the city, except as otherwise provided in this charter;

(4) Have the power to administer oaths and to take affidavits;

(5) Sign as a matter of course on behalf of the city all written and approved contracts, ordinances and other instruments executed by the city which by law are required to be in writing;

(6) Prepare and submit to the city council a recommended annual operating budget and recommended capital budget;

(7) Fulfill such other executive and administrative duties as the city council shall by ordinance establish.

(8) Recommend to the city council such measures relative to the affairs of the city, improvement of the government, and promotion of the welfare of its inhabitants as the mayor may deem expedient.

(9) Call special meetings of the city council as provided for in subsection (b) of Section 2.19 of this charter;

(10) Approve or disapprove ordinances as provided in Section 2.30 of this charter;

(11) Require any department head or agency of the city to submit written reports whenever the mayor deems it expedient; and

(12) Perform such other duties as may be required by law, this charter, or by ordinance.