I want to sue my mother for part of my late stepfather’s life insurance. He passed away in 2009 and he had sexually abused me almost every day from the time I was 4 years old til about 19 years old. My mother knew of many incidents, including a time when he sexually assaulted me when I was 13 years old. When my stepfather passed away, he literally left me nothing. Because of his abuse I have suffered from anxiety, depression, and post traumatic stress disorder. I feel it is only fair because of the pain and suffering he caused that I should be able to have a portion of his life insurance, but my mom does not.
What type of lawyer would I talk to you about suing her? And is it still possible to sue her even though he passed away in 2009? All of this is in Rhode Island.

I'm very sorry about your suffering. Good riddance to him. See a wills & estate lawyer. Unfortunately, abuse is irrelevant to the portion of life insurance you're entitled to. That depends wholly on the contents of the insurance contract between your dead stepfather & his insurance company.
That said, you won't know the contents of the contract unless you sue, & so you should, especially since most insurance contracts provide for all dependents, including stepchildren. Your lawyer can compel your mother to provide access to the contract, & you'll quickly find out what your cut is (if any)

It's too late. Generally you can only sue until the age of 19 or 21 for incidents that happened while you were a minor.

Unless he was convicted of his crimes, your case wont' go anywhere because there will be no real documentation other than your word.

I suggest you get counseling to learn to move on and become a survivor rather than a victim. That's for your sake, so you can move it to the past and get on with your life and find a way to forgive your mother for your sake.

Life insurance is not part of an estate and so the most you could do is sue on a personal injury basis. Even if it had to do with an estate, you can't break a will on the basis that the dead guy was evil. You can try calling personal injury lawyers, but I doubt they would take the case.