I can thoroughly recommend my lawyer - Kerry-Ann Aitken from OutsourcedLaw. She's done all my contracts for me and can turn this kind of thing around very quickly. Her rates are also very reasonable as she quotes a fixed price per job. Email
kerry-ann.aitken@outsourcedlaw.com.au or call 02 9906 7031. She's Sydney based but can do this work easily over phone and email. Good luck!