(2) Fails to initiate reasonable corrective measures where appropriate, including, but not limited to, the obtaining of an estimate of the prospective costs of the correction, within 10 days from the receipt of the notice;
Then the tenant may immediately do or have done the necessary work in a professional manner. After the work is done, the tenant may deduct from the rent a reasonable sum, not exceeding $200, or 1/2 of 1 month's rent, whichever is less, for the expenditures by submitting to the landlord copies of those receipts covering at least the sum deducted.