Javac it would be awesome if f2p thieves could unlearn ANY khri at the crossing guild hall rather then only the ones the crossing leader teaches.

"> ask censored about avoidance unlearn
Censored smiles and says, "You'd need to ask around at the other guilds for that. That sort of thing is a bit more subdued than I like.
Censored gives you an annoyed look, "Stop wasting my time."

not sure how long its been, but on the DR Elanthipedia Thief page, all guild leaders and the province they oversee are listed.