D.C. Code § 27A-103: Failure to make prompt payments to a contractor.

(a)

If an owner fails to make prompt payments to a contractor as required by § 27A-102, the owner shall:

(1)

Pay interest of 1.5% per month or any part of a month to the contractor on any undisputed amount not paid on time to the contractor; and

(2)

If a contractor prevails in a civil action to collect interest penalties from an owner, the contractor shall be awarded its costs and disbursements, including reasonable attorney's fees, incurred in bringing the action.