Sullivan, Ward, Asher & Patton filed the lawsuit in Oakland County Circuit Court.
According to The Detroit News ( http://bit.ly/1h5A8si), the Southfield firm says it has provided legal services on behalf of the Four Tops, but the group failed to pay an outstanding balance of $109,156.73.
Four Tops spokesman Matt Lee said Thursday he had no comment.
The group was a key member of the Motown Records family of artists during the Detroit label's 1960s heyday.
Abdul "Duke" Fakir is the only original member still with the group. He's named in the suit.
The Four Tops' hits include "Reach Out, I'll Be There" and "Baby I Need Your Loving."
Information from: The Detroit News, http://detnews.com/