“Accordingly, we hold that an unlawful detainer judgment awarding back-due rent does not preclude a lessor from seeking additional back-due rent in an ordinary civil action. However, the lessor is precluded from recovering back-due rent associated with a particular time period in the subsequent civil action if such a claim was actually determined on the merits in the unlawful detainer action. Thus, the lessor is not only precluded from recovering twice for the same items of damages but also may not renew a claim for back-due rent associated with a particular time period if that periodic claim was denied on the merits in the unlawful detainer action.”
Hong Sang Market, Inc. v. Peng (2018) tracks multiple years and multiple lawsuits, with a building owner, master tenant and subtenant battling over money judgments, unpaid rent, unlawful detainer damages and various awards of attorneys’ fees. For landlord-tenant practitioners, it provides a crucial analysis of the doctrine of res judicata, in the context of unlawful detainers based on the non-payment of rent, contract damages for non-payment of rent, and the holdover damages incidental to unlawful detainers.
Hong Sang is the owner of a commercial building. It leased to Ming Kee Game Birds, Inc., which then subleased to Vivien Peng. Ming Kee sued Peng for breach of the sublease, but Peng cross-complained against Ming Kee, obtaining a money judgment that she began to collect in the form of offsets to her rental payment obligation. However, Ming Kee and Hong Sang agreed to terminate the master lease, and a new tenant – Ming’s Poultry, LLC – assumed the master lease and began operating Ming Kee’s former business.







