Am I alone?

Long story short... Ever since my husband and I started dating 9 years ago, my brother in law has never really liked me. I have always been super nice to him, but he continues to pick on me. Anywho, my husband and I are expecting our first child in October and with his brother it's always been the attitude of 'what's my brothers is mine too' so OUR home I feel he thinks he has more right to than I do because it's 'his brother' as he says. I could even be saying at 'our' house and he will say you mean *insert husbands name* house. Now I feel he thinks he has some sense of entitlement with my son. Even making remarks such as 'grandparents over rule the parents decisions.' Am I crazy for thinking this is insane?? Am I the only one who has a brother in law that hates me? Yes I have tried talking to him and my husband about it. I have even tried laying rules down for when baby is here, but he says when he is down at his and his dad's my rules do not Apply. Does he not
Realize I will lay the law even if I have to be present every time the baby is around? Please no negative comments, I just need some uplifting words of advice. TIA