repair and deduct

Definition from Nolo’s Plain-English Law Dictionary

A residential tenant's repair of a serious defect or problem in the rental, making it unlivable or significantly unsafe, followed by deducting the cost of the repair from the next month's rent. Proper use of the remedy, which may be invoked only if state law provides for it, requires notice to the landlord and allowing the landlord a reasonable time to fix the problem.

Definition provided by Nolo’s Plain-English Law Dictionary.