The current study aimed to test the feasibility and preliminary efficacy of the Promoting Positive Care Interactions (PPCI) intervention designed to establish positive care interactions between staff and residents in assisted living (AL) using an online approach. PPCI was implemented in one AL community using a single group pre-/posttest design; 17 care staff were recruited from the memory care unit. Delivery, receipt, and enactment of the PPCI were assessed for feasibility. Change in staff outcomes and facility outcomes were examined for preliminary efficacy. The four steps of the PPCI were implemented as intended with 100% staff exposure to education and considerable staff engagement in weekly mentoring sessions. Although there was an improvement in AL environment and policy, no significant changes were observed in staff outcomes. Future testing of the PPCI should include a longer timeline and explore a hybrid model that includes online education and in-person mentoring and coaching of staff to improve care interactions. [Journal of Gerontological Nursing, 48(8), 17–25.]