You need a things how they will be work. So there is would be based how is your business work, How much about script, servers, license, office, regulation, team, promotion and etc.
Many those casino work until now, they never sign message for they bankroll/funds able to paid to public.
That is why it is not good for someone to promote or go into a casino gambling that is not well known or have no answers for operation so that is why some of them who gamble because of bonus of gambling website always lose about it by the end of the gamblling. I think it's some of them to start by not having access to the particular site or the gambling so that is why I always preach to people to know the kind of gambling that form they will bet with