I'm not sure you can detect my enthusiasm through this post, but I absolutely love Leverage. I cannot believe that they ended, and am still catching up (halfway through the fourth season, terrified to start the fifth. I don't want it to end!).
This sounds like an interesting idea, and one that I would love to discuss and/or do with you. However, can we clear it up a bit? Are we playing the canon characters from the show? I'm pretty sure Parker doesn't have a sibling she knows of (she was orphaned), and neither does Hardison (although I'm not quite sure about this; he lives with his Nana).
Eliot's romance with the mark, though, is pretty on-target.
Anyways, I'd love to do this with you if we could iron out a few details.