[Andy B]

Flat-calling first-round raises isn't the hideous sin that it is in limit hold'em. What do you do with a live three-flush in a multi-way pot?

The limp/raise by CIA should represent a big hand--big pair, roll-up, or a big three-flush. I'm not suggesting that you should fold to this raise, but I would exercise caution and I would take note of what this guy shows down.

Given your characterization of the old man, I'd say that there is a solid chance that he has trips. Given that CIA was able to limp/raise third, knowing that you probably had Queens, and was able to call fourth against a paired door card, he very likely has you beaten. There's an excellent chance that you're in third place. I think this is a pretty easy fold.