In this business there is going to be allot of competition. People try to save money on hunting trips while others don't care, they just want a good hunt. Concentrate your efforts on those that are willing to pay a fair price for a great hunt. Always advertise exactly what you have to offer and explain it clearly, so there are no misunderstandings.
Contracts are something that you must use in your business. It is no longer feasable to do things on a handshake with Joe Blow comming behind you with an extra $1 per acre.
Your first attention should be to the landowners you are leasing from. A solid contract between you and them keeeping the land for 3-5 years with a option for 3-5 more at the end. This will protect all your hard work and land improvements. Besides, landowners have something to loose if they break a contract. I strongly caution against year to year leases

I don't know how much people would like to sign a non-competion contract to go hunting with you. If this is something you decide to do. I would suggest that you send them a copy of it when they decide to book a trip with you.Surprises at the hunting camp is never good.

You shouldhowever, have a release and rules that hunters must sign. That will keep you andthe landownerfrom being sued foraccidents. Also your liability insurance provider would like it as well.
If you are a booking agent i would suggest you come up with a contract that your outfitters sign. Protecting you and your advertising money spent on the groups you place in their camp. My standard contract for this is signed by both parties and stipulates on a set commision along with a returning guest policy.