I get visited by spirits who want me to pass messages to my family, but I'm scared to pass the messages.?

I know I may sound crazy when I say this, but it's true. Sometimes I'm visited by family members and friends who have left us to be with God. Sometimes they come to me in my dreams and sometimes they come to me in apparition form. They usually are trying to tell me things. Not bad things, but things that help me with difficult situations in my life. Other times they want me to pass a message to someone in the family. Messages that could, and in some cases, have saved them in one way or another. My mom has this same "gift", so she believes that I have it too. I told my wife about this and she didn't believe me to begin with, but when I was able to tell her I knew about people in her past she hadn't told me much about (her dad, her grandpa and 2 of her aunts) she accepted that this was true.

My wife and I are currently living with my mother-in-law and her younger sister. Her mom blatantly favors her sister. According to my wife, she always has. Recently some of her family members who have passed away have been coming to me and telling me to tell her mom that her blatant favoritism is making it so she and her younger daughter won't join her loved ones in heaven when they die. I think this means that her mom is going to hell if she doesn't change. They want me to tell her, but I'm scared. If I tell her what they want me to tell her, I'm afraid that she will get mad and kick us out. If we get kicked out we have nowhere to go.