kinley, I don't want to be too rough on you, but I could paraphrase your question as follows: "Can we publish duplicate content, but not have it be seen as duplicate content?"
I think the answer is: it depends. You can spin it, you can change it and push the limits. But in general, most people I know who have landing/doorway pages optimized for visitors coming in from specific offers/keywords/etc are going to have landing pages as orphans (not linked from the main site), noindex, and excluded in robots.txt.
What I usually see is a few good content pages for organic, and then specific landing pages that are not in the SERPs that are for paid search landing pages.