Inclusion Criteria:  Child with overweight or obesity (85-99.9% BMI for age), Child age 8-12, Child with a diagnosis of ADHD, A parent willing to participate who can read and understand English at a minimum of a fifth-grade level, able to attend treatment sessions remotely via Zoom on video.  Exclusion Criteria:  Current enrollment in an organized weight control program (parent and child) Medication specifically prescribed for weight loss (child) Medical or psychiatric condition that may interfere with treatment participation or that may require physician monitoring of diet and/or exercise (e.g., acute suicidality; psychosis; substance use disorder) (parent and child) Change in psychotropic medication or other medication that may impact weight or ADHD symptoms during the previous 3 months (child)