1. standard range here
pairs, A9o+, Axs, broadway, K8s+, Q8s+, J8s+, 96s+, 75s+, 54s+

with a lag otb, maybe dial it back to the co range
with fish in the blinds, drop the small cards

2. don't like to bet air into strong ranges oop, would c-bet any pair, any draw

3. i'd bet again with everything since btn won't have alot of Jx and should fold his small pairs now

would not bet an A or K ott unless i had it or beat it
expect his range here to be mostly pps

4. probably giving up without at least a J

honestly i'm surprised villain folds otr anything he calls the turn with