The answer to your question is not so cut and dry. Generally, if your mom and step-dad are legally married, then she lives there too and can allow you to stay there too, even if your step-dad tries to kick you and your sister out, or all three of you. But is sounds like there are bigger issues involved, and if family therapy or counseling is not an option, then your mother should see an attorney to discuss the specifics of the situation and her options.
Answered on Mar 17th, 2016 at 5:11 AM