e receipt of such application, the amount of the requested rent increase, the landlord’s justification for the request, and the place, date and time of the hearing on the adjustment request. The hearing shall be set no less than 10 days nor more than 45 days after the date of mailing such notice. c. The hearing shall be conducted by a hearing officer designated by the Department. At the time of the hearing the landlord and/or any affected tenant may offer such documents, testimony, written declarations or evidence as may be pertinent to the proceedings. d. A determination with written findings in support thereof shall be made by the assigned hearing officer within 75 days from the date of the filing of the application. A rent adjustment may be granted for less than, but for no more than the amount requested. e. Copies of the findings and determination of the hearing officer shall be mailed by the Department to the applicant and all affected tenants. The determination shall become final 15 days from the date of mailing unless an appeal is filed with the Commission within such period. (Amended by Ord. No. 156,597, Eff. 5/20/82, Oper. 5/15/82.) 4. Appeals . a. Time and Manner . An appeal to the Commission from the determination of a hearing officer may be filed by the applicant or any affected tenant pursuant to this subsection within 15 days after mailing of such determination. Such appeals shall be in writing and shall be filed in the office of the Department upon a form and with the number of copies required by the Commission. Each appeal shall be accompanied by a $50.00 filing fee. An appeal shall set forth specifically wherein the appellant believes there was an error or abuse of discretion by the hearing officer. Additionally, an appeal may be made based on new, relevant information which was not submitted to the hearing officer at the time of the initial determination due to mistake, surprise, inadvertence, or excusable neglect, and which information would have affected the determination of the hearing officer if it had been submitted earlier. The filing of an appeal will not stay the effect of the hearing officer’s determination.