After graduation in 1986 from the University of Sydney, Finlay worked for 12 years in a large suburban small animal practice before purchasing Engadine Veterinary Hospital in 1999. He currently works part time at Engadine Vets. His major interests professionally are Canine and Feline Internal Medicine. He has two cats "Steve" and "Rachael", both rescued Domestic cats. His social interests are travel, mountain biking, bushwalking, cooking and motor cars.