Villain is a 18/8 nit over 125 hands. He 3bets 3%, fold SB to steal 85% and Cbets 17%. He's been quiet of what I've seen, so no reads on him.

iPoker - $0.20 PL Hi (6 max) - Omaha - 6 players

BTN: $21.70
SB: $20.00
BB: $29.24
UTG: $26.34
Hero (MP): $20.50
CO: $13.43

SB posts SB $0.10, BB posts BB $0.20

Pre Flop: ($0.30) Hero has A K Q 7

fold, Hero raises to $0.70, fold, fold, SB raises to $2.30, fold, Hero calls $1.60

Flop: ($4.80, 2 players) J T J
SB bets $3.20, Hero

Can we justify jamming?

How about folding? AAJ and JT are calling.

His bet sizing seems large, given this I fold tho as suddenly our options cost a lot and we have too be right a tonne against his range that hits this flop a lot. Wecould mon raise but folding to a jam is not fun, and calling leaves us getting it in dead a tonne do easy fold

Please do not feed the nit

i'd fold and move on

I would fold quite a few hands vs him 3betting, especially 100bb deep and with an A in ur hand.
Flop I fold. Ur outs might boat him up and therefore you actually have more RIO then IO imo. If u hit ur outs and outrdaw him he's not gonna pay u off with sth. like AA** on JJTK*

I fold pre against his range 100bb deep.

Fold the flop. Many nits are actually pretty bad players and often incapable of folding AA on paired boards for 100bb, let alone something like AAK or AAQ.

this. If your sure he folds aces(which he has like 90% here) jamming is an option i think...
c-bet 17 makes this a fold i think. Dont think he b/f alot, i can really se him flipping over AA10X if you ship here...

fold preflop lol, personally not jaming OTF.
nit is usullaly not leading on that flop very often its 50/50. So a shove cant be bad if he is cbetting wide.

but overall i would just fold pre fold otf.

It's a fold preflop if he played decent postflop, but seeing the 17% cbet I'm calling with any four to exploit the **** out of his postflop tendencies. It depends on what he usually does after checking, but you should win heaps without showdown. Of course go into full nut/nutdraw peddling mode if he shows aggression.
The flop situation is an easy fold for the same reason assuming he generally bets the top of his range (some weirdos are weighted towards the bottom!), he just has an autoshove hand too often for any moves to show a profit.

Preflop is an easy call given we can take almost every flop that is relatively connected and less than ten high off of him, plus many many more like Vanhaomena said.

Postflop, I think in retrospect shove is pretty bad given that he doesn't always cbet naked AAxx here (given his low Cb%). Moreover, the hands that do stack off against us usually block the living hell out of our draw and we have little equity against (AAJx, KQJx, JTxx)