Can I ask the court to give me control over my health and insurance matters but still have the company pay for it?

I married in to a family business. My mother in law "keeps the books". She has control of all my medical information and my daughter's information. I am listed as an employee and the business pays for my health insurance and vehicle insurance. At one point, she didn't pay our health insurance for a period of time, thus, causing me to have medical bills that I would not normally have. Our family has a shared mailbox since we all live on the same property. My mother in law did not give me the information that my insurance was not paid, nor was I given my mail that had the bills from the doctor's offices. Thus, causing me and my toddler daughter to both be turned into collections. What I want to know is, do I have the right to legally gain counsel to control my own health matters and my insurance with the business still paying? See no one gets pay checks. She lies on taxes and says we do but no one does. I am just learning about lots of this myself. Is this defamation of character since she is ruining my name and my poor daughter? Am I able to file suit against her for violating my rights? Also, if she happened to get turned in for lying on her taxes and embezzlement from a business, I wouldn't be mad. I just need to know if I have a legal right to fight against her and that control she has and uses against me.