Poindexter
Correct, you knocked off 4 hits. That leaves you to soak 15P, -1 AP. I believe you have 28 dice to soak:
Body 10 + Body 3 (Titanium Bone Lacing) + Armor Jacket 12 + Armor 3 (Titanium Bone Lacing) + Troll Dermal Plating 1 - 1 AP = 28
You have 16 points of armor, modified to 15 by AP. The attack strength equals that so damage it will remain P instead of switching to S. This seems to be one of the few cases in the rules where a tie goes to the attacker. (Also, I can never ever remember which way it breaks and have to look it up every time.) See p. 168 of SR5.
If you use Edge post-roll then (statistically) you should be able to soak all of the damage. (9 hits on the first roll, on average, plus another 6 from an Edge reroll.)
Malevolence
Two issues: first, Ohanzee doesn't have a Free Action to command Wolf because Centering is a Free Action. Second, and more problematic, Command Spirit is actually a Simple Action per p. 165. We were using Free Actions in the previous encounter because Wolf was already engaged (i.e. had already been commanded) and was busy running around biting people, so I figured a Free Action was reasonable to instruct Wolf who to bite next. Yes, this does mean that summoners cannot summon and command in the same initiative pass. You can blame Ryo for Ohanzee's Combat Paralysis.
CT1 IP2
Wolf 4 (chillin)
Ace 4
Sam 3
#2 & #3