How can I get out of contracts created in a family business?

I signed operating agreements pertaining to partnerships along with other documents during a time when I was dealing with health issues and wasn't prepared both mentally and physically before signing. These documents were created by family members (family business) along with their attorney and accountant that mainly serve them. I understand I should have read the documents and understood them first but I was in a position where trusting was easier than taking my time to understand the documents. I any case, the control of the business and partnerships is now in the hands of one person (a family member) who I consider unable to treat my association with the family business fairly. Along with this person and other family members, they do not seem to understand the value of saving money and would prefer to be strapped with debt while living the high life. I have documents I need checked out and am not sure what type of attorney would suit me best. Please inform me on this matter.