Purpose This feasibility study evaluated a theory-based intervention (CARE-CITE) designed to engage carepartners (CPs) in supporting stroke survivor upper extremity rehabilitation. Design The study was a one-group design with pre- and posttest and 1 month follow-up (N = 7 dyads). Methods Feasibility was determined by participant retention, CP and stroke survivor intervention adherence, and CP acceptability of the intervention (exit interview). Measures of CP depressive symptoms, fatigue, and family conflict around stroke recovery and stroke survivor upper extremity function are reported. Data were analyzed using descriptive statistics. Findings All participants completed the study and adhered to the intervention, and CPs found CARE-CITE helpful. Descriptively, better scores were observed for CP's mental health, family conflict, stroke survivor confidence, and upper extremity tasks performed. Conclusion These results provide initial evidence that CARE-CITE is feasible after chronic stroke and that CPs and stroke survivors may benefit from family-centered care. Clinical Relevance Improving CP skills in supporting rehabilitation activities may improve stroke survivor upper extremity function.