I have taken two pictures just to make this question simpler. In the first picture, I want to make that purtruding part even with the surface, in another words, I want that extra part sticking out cut off. In the second picture, I want the ending surface of my sweep taper of smoothly to the top edge.

http://imgur.com/b9Onu1Z,YkwsUu0#0

Hopefully this makes sense,

Thanks