Game Development

New to the app develpoment community I need an app created from start to finish the contractor creating the app needs to have the total package. Looking for just one contactor and if all possible someone who will work on commision apple store takes 30% which leave 70% on the table will to split 50/50 with conttactor would like to see resume and or finished app ceated by selected contrator I have created I guess the skit and how the game would run. Note: Contractor must sign agreement that will bind both parties to project this will prevent eaither party taking the idea or work els where.