Chronic Phase of Disease

The goal of this clinical trial is to test a new rehabilitation program, combining acceptance and commitment therapy with strategy training (ACES), to help people resume social participation after stroke and live in the community. Investigators will also compare the changes in social participation and psychological flexibility from baseline to follow-up at one-month after rehabilitation to see if participants who receive ACES report clinically meaningful improvements (Cohen's d=0.2 or greater) compared to the existing rehabilitation program using strategy training alone (START). Participants will: * complete testing to see if they are eligible for the study. If qualified, complete testing to understand how the stroke has affected their daily life * be randomized to receive either ACES or START rehabilitation program for 10 sessions at their home * repeat part of the tests at the end of the intervention and one month after