M.Z.
The safety of your daughter comes first, and if your husband doesn't see that, it is very sad. My husband was VERY passive when we got married as well. He was pushed around by his mother and sister and would cave on everything until I gave him an ultimatum. I know it sounds horrible, but I told him them or me. I don't mean, like he can never see them again, I said in terms of you are either my husband or their property. He has since become much more in control of himself to the dismay of his mom, but I love him all the more for it. You need to tell your husband that you will not allow your child to be put in the middle. I know how hard it is and how it can tear a family apart. If his family can not respect you though, you both need to stand up to them. It's not just you. A bystandard (the doctor) who knows both families has advised it. They won't understand that and they'll take it personally, but that's not your problem. Your daughter is the issue here and the fact that your sister in laws kids need help. Don't let your husband fold. It will only hurt your marriage. What's more important, your family (you, your husband, and your daughter) or your in laws? Good luck. I know it is hard.