Montessori for Dementia and Ageing (MDA) is a philosophy to support person-centered care (PCC) and autonomy of older adults. This quality improvement project documented outcomes of implementation of the MDA philosophy in a long-term care memory neighborhood. After an initial training session, MDA was implemented with weekly, 2-hour on-site coaching sessions over the course of two semesters (28 weeks) with a community of 20 female persons living with dementia (PWD). Primary outcomes were negative responsive behaviors of PWD, whereas the secondary outcome included percentage of active engagement of PWD. Mean number of negative responsive behaviors was 62.21 at baseline, which decreased to 33.82 at the end of the project per the Cohen-Mansfield Agitation Inventory. At baseline, PWD were actively engaged in 18.15% of observed opportunities, according to the Engage portion of the Resident-Centered Assessment of Interactions with Staff and Engagement Tool. At the end of the project, PWD were actively engaged in 40.56% of observed opportunities. Results suggest that MDA is feasible to implement PCC in a long-term care memory neighborhood. [Journal of Gerontological Nursing, 48(8), 6-9.].