A peer support intervention was developed to support aging caregivers and adults with developmental disabilities in planning for the future. The intervention consisted of a legal/financial training session followed by five additional small-group workshops. Pretest and 1-year follow-up surveys were conducted with 29 families participating in the intervention and 19 control families. Outcome measures included future planning activities, caregiving appraisals, discussion of plans with individuals who have developmental disabilities, and choice-making of individuals with developmental disabilities. The intervention significantly contributed to families completing a letter of intent, taking action on residential planning, and developing a special needs trust. Caregiving burden significantly decreased for families in the intervention and daily choice-making of individuals with disabilities increased.