Complex sentence: The DiMeos move frequently in an attempt to find a good educational environment for JJ and believe they have found an optimal choice when they discover a school that prides itself on being inclusive and where JJ will have an aide to speak for him.
Split into simpler sentences: The DiMeos move frequently in an attempt to find a good educational environment for JJ. They believe they have found an optimal choice when they discover a school that prides itself on being inclusive and where JJ will have an aide to speak for him.