These are the things that you can get in game, but only if you provide a justification or have a PrP to get it.

Justifications

Dual Kith This requires EITHER justification or a preapproved PrP.
Flaw Buyoff Flaws, sadly, don't just disappear, so either a good justification or a preapproved PrP is needed.
Mantle All Mantle raises require a justification. Further, you can only buy one level at a time, and one per month.
Regaining Clarity Clarity isn't just something you can buy. You either need a preapproved PrP showing how you're being redeemed, or a good justification for it.
Wyrd 6+ Wyrd at 6 or higher requires a Justification, along with an appropriate frailty.
Wyrd Evo This requires EITHER justification or a preapproved PrP.

PrPs

Becomings This should be a given, but any becoming requires a preapproved PrP.
Dual Kith This requires EITHER justification or a preapproved PrP.
Flaw Buyoff Flaws, sadly, don't just disappear, so either a good justification or a preapproved PrP is needed.
Goblin Contracts Goblin Contracts MUST have a PrP to obtain.
Hedgespun Whether creating or purchasing it, hedgespun always requires a preapproved PrP.
Regaining Clarity Clarity isn't just something you can buy. You either need a preapproved PrP showing how you're being redeemed, or a good justification for it.
Tokens Any Token, created or purchase, requires a preapproved PrP.
Wyrd Evo This requires EITHER justification or a preapproved PrP.