Welcome!! ^^
Yeah Skyrim!! It got me hooked ever since I bought it! I love that even after so many played hours you still can discover things you haven't seen before... Playing the Dragonborn DLC questline now, and it's just great, too.
You want to get rid of Maven? Who wouldn't. :giggles: (but I better be quiet, I even made her Jarl of Riften when it came to the truce discussions at High Rothgar).
Nope, unfortunatelly I have no clue where and if you can get a quest to kill her...