Complex sentence: The offices of the WFC, under the direction of David Chapman-Smith, a barrister practicing in Toronto, Canada, who has served as Secretary-general of the WFC since its founding, also administers the International Federation of Sports Chiropractic (FICS).
Split into simpler sentences: The offices of the WFC are under the direction of David Chapman-Smith, a barrister practicing in Toronto, Canada, who has served as Secretary-general of the WFC since its founding. The WFC also administers the International Federation of Sports Chiropractic (FICS).