Does your husband have rights to your inheritance from your mom?

This depends on many factors. First and foremost are you in a community property state? Did the inheritance pass through a will or a trust?

I would suggest you talk to an estate attorney. However, in most cases once you receive the inheritance into your estate as a married couple it becomes the property of both spouses. Therefore, they may have a right to half of the inheritance. Also if you have been married for a set period of time as designated by your state then they too may have a right to half of the inheritance. Once the inheritance was removed from your mother's estate in no longer was your mother's property, but was added to your estate. Being married give your spouse the right to marital assets of which this became when your mother's estate was settled and you received your inheritance.