This is another area in which to utilize previous residency graduates and junior faculty. You should have already pursued this information prior to negotiating your contract, but if you have not done so, do so now. Never sign a contract until your own legal council has reviewed it. Most contracts have a confusing array of legal speak intermixed with a few paragraphs of understandable English. However, even if you understand every word, have your lawyer approve it.
Many contracts still contain non-compete clauses and limits to profit sharing.
You are entering into the largest financial and medical-legal decision of your life. If you fail to take the time to safeguard and understand your future, no one else will. Once you have considered these factors, you are ready to sign your contract. Chose the one that is best for you. Your reasons will be your own, but your reasoning process will be simplified and streamlined.