Becoming an Infernal Informant

I would love to get Trickster as my profession. However, I seem to be Constable’s Pet - has this forever closed my way to this profession? How could I become Infernal Informant at this point? My stats are 90-110 in each, just on the edge of becoming Person of Some Importance.

You can also become a Trickster through the Urchin faction card.

Ah, great! And I have the connnections for that too. Thanks so much!