Any "transactional" or "contract" or general "business" attorney should be able to help you remove yourself from the business. However, that may not help you--changes in ownership, control, etc. made *after* someone (or a business) owes a debt (or taxes) may be ineffective in protecting the person from the debt, since 1) the liability incurred earlier; and 2) the change may be seen as something done specifically to defraud creditors. You should speak with a tax attorney to determine the best course  of action.