Like the concept of Entries #1 and #2 well enough. Probably prefer #1 over #2 at this point. We're afraid about the "Im" part of the web address getting lost, because we don't own "UpsideDown.com" and we don't want to drive traffic to their web site.
Your Entry #10 is the clear leader right now. Can you do a version that uses the tag line (motto), "The Short Sale Experts"? We're not sure which of the two tag lines we like the best.