Can I keep my trade between packs?

Hello~ ^__^  This question has a few tiers:

• If my character earns a trade in Pack A and then leaves the pack and joins Pack B instead, does that trade automatically transfer or is it up to the Alphas of Pack B?
  

• Do trade threads have to be relevant to the pack in question? E.g. I have a completed thread of my character spying for Pack A, but I'm requesting the Spy trade in Pack B, who my character has never spied for.
  

• Can my character keep its trade (or at least the title!) if it leaves the pack and becomes a lone wolf?
  

tyvm to whoever answers~