When the mayor or the city council discovers that any of the applied provisions of this code or any statutes of the state of Illinois have not been complied with or have been violated, the mayor shall notify the applicant or licensee in writing of such noncompliance or violation. Such notification shall:
(A) Set forth the specific nature of the noncompliance or violation discovered;
(B) Establish a specific and reasonable period of time for the correction of such noncompliance or violation;
(C) State that failure to comply with any notice issued in accordance with the provisions of this chapter may result in a denial or an immediate revocation, as the case may be, of the license; and
(D) State that an opportunity for appeal from any notice or inspection findings will be provided if a written request for a hearing is filed with the mayor and city council within the period of time established in the notice for correction.
Any such notice shall be deemed to have been properly served when it has been delivered personally to the applicant or licensee or when it has been sent by registered or certified mail, return receipt requested, to the last known residence or business address of the applicant or licensee. (1977 Code)