In a table of loose callers preflop and every hand almost always go 4 minimum handed. Playing very tight ranges with big pairs and stong suited hands only due to oop vs many stations ip over me.

Binds 50/100

I raise $350 with JJhd and goes 4 way.  

Flop 2 c 7s 5s (pot $1550), i bet $900 and everyone folds to the btn whom calls. Button is a highstakes player that has a wide range especially in multiway. Has more suited hands/off suit one gappers compared to the rest. He could certainly play very tough in position especially he trusts his read about me being weak.

Turn A d (pot$4150), What's my line here? Check to induce seems like i'm capping my range but at the same time it seems that he could have more Ax than me here. Bet for value protection seems ok intuitively but after some thoughts,i feel that with me holding no blockers to the board,he seems to have a range advantage over me. How much equity do we have here to make a bet/check to be best? Thoughts pls