If you incorporate, such as a single-member LLC, you can avoid personal liability if anything goes wrong. You are free to contract with vendors, but if you do so and things go wrong you will be personally liable to them and, perhaps, any people that might be injured. Speak to a business attorney. It may cost a little money but if something goes wrong it could cost you a whole lot more. Good luck!
I agree with attorney Zales' answer and would recommend that you form a single member LLC. You should also remember to obtain enough liability insurance for the event as any entity will only protect you from the negligence of your employees or independent contractors. An entity will not protect you from your own negligence.
THESE COMMENTS ARE NOT LEGAL ADVICE and are merely intended to answer a question posted on an AVVO question board. Such answer is not intended to nor does it create an attorney-client relationship. Mr. Kornis is licensed to practice law in the state of Wisconsin and maintains an office in Milwaukee. Mr. Kornisâ€™ telephone number is 414-224-0600. Mr. Kornis is an attorney at Mawicke & Goisman, S.C., with a website at http://www.dmgr.com.