SEC. 37.11A. CIVIL ACTIONS.
(a) Whenever a landlord charges a tenant a rent which exceeds the limitations set forth in this Chapter, retaliates against a tenant for the exercise of any rights under this Chapter, or attempts to prevent a tenant from acquiring any rights under this Chapter 37, the tenant may institute a civil proceeding for injunctive relief and/or money damages, and in cases where the landlord has charged an excessive rent in violation of Section 37.9B(a), injunctive relief and/or money damages of not less than three times the amount of excess rent collected; provided, however, that any monetary award for rent overpayments resulting from a rent increase which is null and void pursuant to Section 37.3(b)(5) shall be limited to a refund of rent overpayments made during the three-year period preceding the month of filing of the action, plus the period between the month of filing and the date of the court's order. In any case, calculation of rent overpayments and re-setting of the lawful base rent shall be based on a determination of the validity of all rent increases imposed since April 1, 1982, in accordance with Sections 37.3(b)(5) and 37.3(a)(2) above.