Is it wrong if my husband lives on ship and I live with his parents to share about the wrong doing of his parents with me? Is it lawful in Islam. I just feel he should know what is going on because previously for 2 years of my marriage a different story was told to him

It is better not to do so. What is the outcome you will get?

I am afraid that he don’t believe you, and this will make the situation worse.
I prefer to tell him that everything is going well, and praise his parents, rather than giving him bad image.
Also, work hard to treat them as your parents, not parents in law.
This will have dramatic effect