 Finn's earliest published work was a series of comic book stories that he wrote and drew for Absolute Comics, notably the “Punk” series he created with William Traxtle and Shane Campos, among others, from 1991 to 1994.He left comics in the mid-90s to concentrate on fiction writing.He also wrote a number of essays and articles for Playboy’s online website before establishing his own weekly self-distributed column, “Finn's Wake.”

Finn worked for Chessex Manufacturing for a year, serving as their editor-in-chief, where he worked on a number of product lines including "Lost Worlds", "Sherlock Holmes, Consulting Detective", and helped design a variety of ancillary game product tie-ins for "Vampire