Thank you @VHampton so much for the detailed annotations. I did what you said and managed to snap all incorrect lines, yay! It looks like this now:
Now I am trying to fix the eaves lengths, they look like that (badly) because I did start from auto but then gone far into manually editing and didn't have energy to pay attention to the eaves, so they all got altered. How do I set the eaves length back? When I open a plane for editing, it shows 6" but not allowing me to edit, do I have to drag on the drawings to make each eaves with the correct overhang size with dimension tool?
And a side note, when I tried to do auto roof, it doesn't recognize the part that there is only one floor and created one big roof to cover both floors. see this pic. But anyway I have gone too far in manually get the roof to where it is now so I don't need to be go back to redo, but would very much like to be educated on how to make the auto tool distinguish only one floor part for future reference?
Thanks @SNector, I tried to attach the plan file, but it is over the limit of 14MB...My file is 26MB...Any suggestion?
Best,
Leyi