District of Columbia Code Division VII. Property. § 42-3505.31. Authorized fees for the payment of rent beyond 5 days after the rent payment is due.

(1) If the written lease agreement between the housing provider and the tenant informs the tenant of the maximum amount of the late fee that may be charged pursuant to this section; and

(2) If the tenant has not paid the full amount of rent within 5 days, or any longer grace period that may be provided in the lease, after the day the rent payment is due.

(1) Charge interest on a late fee;

(2) Deduct any amount of a late fee from a subsequent rent payment;

(3) Impose a late fee more than one time on each late payment;

(4) Evict a tenant on the basis of the nonpayment of a late fee; or

(5) Impose a late fee on a tenant for the late payment or nonpayment of any portion of the rent for which a rent subsidy provider, rather that the tenant, is responsible for paying.