Hi Wendy
I looked at your plan file and made some adjustments. First, check all of your eave heights and overhangs - they all seem to be different. Second, are you sure of your roof pitches - one is 8 in 12, one is 9 in 12 ,etc. Then I broke your two crossing roofs using the "3" (break key) at the center. Then use the "2" (manual join roof planes) key to join the roofs. This should eliminate the roofs intruding into the house. Then raise the shed roof plane to 9' at eave and use the "2" key to join the shed with main roof. Hope this helps
LenhartPlan2022-withShedRoof-Connected REVISED.plan
DougMaddox's post in Marrying Manually-Drawn Roof Planes was marked as the answer