Builds aren't really my strong point, so please let me know of anything I may have done wrong. When I feel we have this ironed out, I will add it to my Slayer guide.
Slayer(Bounty Hunter) build:
Prerequisites: Int 13+
Archetype: Bounty Hunter<Level>: <Selections> :: <Info>
1: Combat Expertise :: Not very useful, but the chain requires it.
2: Bounty Hunter(Dirty Trick) :: Free action Dirty Trick in place of your sneak attack dice, CMB gets +1 per sneak attack die lost in this way.
3: Improved Dirty Trick :: +2 to Dirty Trick
---In all honesty, you could pursue other classes past this point. The free action Dirty Trick is what you really wanted, and you wanted level 3 to get the sneak attack die to trigger it. Taking further Slayer is still good because the extra Sneak Attack die will add to your CMB for the Dirty Tricks, but many other classes can also work well with this build from this point on.---
4: Ranger Combat Style(Two-Weapon Fighting) :: The more tricks the better
5: <Open Feat Selection>
6: Bounty Hunter(Submission Hold) :: This won’t come up much. There’s not much need to start a grapple, when you’ve already blinded, dazzled, deafened, entangled, shaken, and/or sickened your opponent.
7: Quick Dirty Trick :: Turn your first attack into a Dirty Trick. If the first trick is a successful Blind, then your further attacks will be Sneak Attacks, which can be turned in for further Dirty Tricks.
8: Ranger Combat Style(Improved Two-Weapon Fighting)
9: Greater Dirty Trick :: +2 to Dirty Tricks; Extra 1d4 rounds to duration of Dirty Tricks
10: Bounty Hunter(Submission Hold) :: Non-lethal Assassinate for 1d6 rounds. Not really long enough for anything, except maybe tieing someone up.
11: Dirty Trick Master :: Worsen existing Dirty Tricks, notably Nauseated.
12: Ranger Combat Style(Greater Two Weapon Fighting)
--- At this point, the build is complete. You can spam lots of nasty Dirty Tricks with high CMBs.---
If there are no further suggestions, I will add this to my Slayer guide.
I have just noticed the surprise maneuver feat. It's so good for this build, I will need to place it immediately at level 9. It is doubtful that this feat stacks with the bounty hunter's bonus.