If you are a U.S., you are able to petition for your spouse and his children, however there is no basis for you to petition for his mother. However, when your husband becomes a U.S. citizen, he would be able to petition for his mother. I suggest you seek the help of an immigration attorney in preparing your petitions as this process can be quite difficult.
Answered on Oct 27th, 2014 at 8:12 PM