Appeals to the board of adjustment may be taken by any person aggrieved or by any officer or department of Mobile County affected by any decision of any administrative officer representing the county in an official capacity in the enforcement of this part or of any ordinance or regulation adopted pursuant to this part. Notwithstanding any provision herein, the board of adjustment shall have no jurisdiction to review any decision already determined by the Mobile County Commission. The appeal shall be taken within 30 days of the decision by filing with the officer from whom the appeal is taken and with the board of adjustment a notice of appeal specifying the grounds thereof. The officer from whom the appeal is taken shall transmit forthwith to the board of adjustment all papers constituting the record upon which the action was taken. An appeal stays all proceedings in furtherance of the action appealed unless the officer from whom the appeal is taken certifies to the board of adjustment after the notice of appeal shall have been filed with him or her that by reason of facts stated in the certificate a stay would in his or her opinion cause imminent peril to life or property. The proceedings shall not be stayed otherwise than by a restraining order which may be granted by the board of adjustment or by a court of record on application and notice to the officer from whom the appeal is taken and on due cause shown. The board of adjustment shall fix a reasonable time for hearing the appeal, give public notice to the interested parties, and decide the appeal within a reasonable time. Any party may appear in person, by agent, or by an attorney.