Your mother-in-law could have made the deed several ways. She might have given your wife a "life estate" in the house. In other words, your wife would own the house for as long as your wife lived, then the house would automatically go back to your mother-in-law. In that case, your mother-in-law owns it now, and she can evict you.Or, she might have given the house to your wife, but retained a life estate for herself. In other words, your mother-in-law would own the house for as long as your mother-in-law lives, then the house would automatically go to your wife or your wife's heirs. In this case, your mother-in-law would still own the house now, and she could evict you. But, since I assume you are your wife's heir, you would have a future interest in the house (in other words, you expect to inherit it someday, upon your mother-in-law's death).There are other ways that she could have used a life estate, but these are probably the most likely in your situation. I suggest having a lawyer look at the deed, to tell you how she set up the life estate.