with the required timely notice of their intention to do so. The landlord, however, refused to make the payment specified in the agreement. The landlord initially refused to pay on the stated grounds that the tenants had failed to provide the landlord with an IRS Form W-9, which would be required by the Internal Revenue Service, according to the landlord, in the event the payment specified in the settlement agreement was made to the tenants. On April 23, 2008, the tenants filed a motion to reopen the case and to enforce the settlement agreement. A copy of the agreement was attached as an exhibit to the motion.
On April 25, 2008, the landlord sent the tenants a written demand for $6,498.60, representing the March and April rent and other claimed costs associated with unpaid invoices and alleged physical damage to the apartment. A few days later, on May 6, 2008, the landlord filed a separate action for breach of contract in the Civil Division of the Superior Court, once again seeking payment of the March and April rent and the other alleged damages. The landlord voluntarily dismissed the separate action, however, after Judge Gerald Fisher, who had replaced Judge Zeldon in the Landlord & Tenant Branch of the Superior Court’s Civil Division, ruled that the landlord was entitled to rent for March and April, but that the landlord’s claim for alleged damage to its property had been resolved in the tenant’s favor by the settlement agreement.
II.
The Trial Court’s Decision
Judge Fisher heard the tenants’ motion on May 16 and 22, 2008. The tenants testified that they vacated their apartment prior to March 31. Judge Fisher, however, disbelieved this testimony, describing a part of it (a claim that the tenants had only one set of keys) as “almost preposterous.” Instead, the judge credited evidence on behalf of the landlord to the effect that Mr. Aragon was in the apartment several times in early April. The judge therefore ruled that the landlord had the right to subtract the March and April rent from the payment required by the settlement agreement.
On the merits, the judge held that under the circumstances of the case, the tenants did not commit a material breach of the confidentiality provision by appending to their motion a copy of the settlement agreement, and that the landlord was not relieved on its obligations under the agreement on the grounds that the tenants had violated it. Judge Fisher also concluded that the landlord was not entitled to reduce the settlement amount by unpaid invoices and by damage to the apartment for which, according to the landlord, the tenants were responsible. The judge held that these claims had been asserted in the Notice to Correct or Vacate, which was attached to the landlord’s complaint for possession, and that any issues relating to damage to the property had been resolved, as an integral part of the case, by the parties’ settlement agreement. This appeal followed.
III.
The Claim of Material Breach by the Tenants
Responding to the tenants’ claim that the landlord failed to comply with the settlement agreement, the landlord contends that the tenants themselves committed a material breach of that agreement by attaching a copy of the agreement to their motion to enforce, allegedly in violation of the agreement’s confidentiality provision. It is the landlord’s position that this alleged material breach by the tenants nulli