Head-final relatives in Nɬe?kepmcxín (Thompson River Salish) have previously been described as rare. This article presents new data illustrating a range of possible head-final relatives and the discourse context in which they occur. The difference between head-initial and head-final relative structures is accounted for by information structure, namely the position of focus. When focus falls on the entire NP containing the relative clause, a head-initial relative is generated. However, when focus falls on the relative clause itself, excluding the head noun, a head-final relative is used. The effect inside complex nominals is to linearize focus before background, matching the FOCUS ≫ BACKGROUND generalization observed in matrix clause focus marking. The study is the first examination of focus marking inside the Salishan nominal domain.