He bets into 4 people (having the original pf raiser still to act), which indicates a very strong hand (usually). Also there is a guy behind you who potentially could wake up with a big hand or better fd. Without a hud and any specific reads that he is a monster whale it's ez fold. 

ez fold flop   ? I think this is one of those spots where I'm losing a lot of $ overall, draws like this one

I think that the flop call is fine.  We have a lot of BD potential with this specific hand (we can turn a million outs with the Qh against top set or two two.

Turn I call again at this point since we have improved over TS, TTP, wraps etc..and river gets pretty interesting.

The river I am really curious and I might look up this guy.  What I am curious about is that he bets 60-65% on flop and turn and than only half on the river.  When he bets smaller I think that he no longer has the nut flush, just feel like a lot of people go bigger here given the action (range is called to non nut flushes at best).  So I probably call in game and make a not of his donking range (bare NFD, TS, TTP, what ever it was)  Just feel like this is near the top of our range when we call flop and turn, also hard for him to barrel a Q high or K high flush three streets so he is very polarized in terms of his barrelling range (nut flushes, missed wraps, maybe turing TTP into a bluff).  

River call is probably break even given the size and we will actually get a lot of info from the hand : how strong of a hand he donks into 5 players, and maybe a bet sizing tell on the river (if he bets so small here with the nuts and larger later with a nut blocker).  We are also going to have great position on this player in the future so we can gain a lot from this information.

I would fold this when BB leads out 5-way. You're not drawing to anything you're happy to stack off with, and his range is too strong for you to mess around with light floats. If it had been a HU pot against a c-bet, it would have been another story.

His flop sizing is interesting, since it doesn't exactly ooze strength. But until we know what this guy's sizings mean, we can't read a whole lot into that.

In multiway pots it is crucially important that your draws (your primary one at least) be to the nuts. I snap fold this on the flop and don't think twice about it.

more agree w\ fold otf

would anyone Vbet river if checked(vs good reg\ vs 35\20 kind of opp)
?

What are most doing on the flop with AQ9cTc?  What does our calling range consist of (think with 9 SPR and position we have to have a calling range)?