Seeking Mother-in-law Help

Never doubt your parenting instincts. Tell her as politely as possible that you although appreciate her advice on raising children, you'd appreciate it even more if she only gave it to you when asked.
As far as your husband goes, aside from making it abundantly clear that you would appreciate his support considering you're dealing with this woman 24 hours a day, there isn't much you can do about a man and his mother. At least you'll outlive her and can try to undo any damage she's done once she's gone.

Take him out of the house and explain how you feel...the best instincts as a mother are yours !!!!

I know how you feel, except that my mother-in-law loves me and is supportive. I am currently living with my in-laws and it's not easy. Have you attempted to speak to your husband about how you feel? I know how my 2nd mom is and my husband and I spoke about family getting into our business. I told him that I was not going to let anyone tell me how to raise our 7 month old daughter. I'll respect what they have to say and they can make suggestions but that's it. He is YOUR son. My 2nd mom complains that I let her cry, don't give her regular food, and don't dress her warm enough, etc. I am honest with my in-laws and let them know(respectably) How i raise my child and what I don't like. It's difficult because we are under their roof, yet they cannot demand that I raise my daughter the way they want. I've always had a great relationship w/ my 2nd mom and therefore makes it easier to voice how I feel. You know your children best and don't let what she says make you doubt that. Maintain your stand and try and speak to her about how u feel.

Time for you to help your husband with money so the two of you can get your own place. Staying under your mother-in-law's roof is not going to help. It may actually make things worst. Once you're on your own, your husband can be a man and a husband, rather than a momma's boy.
You guys can live your own lives and she can butt out of your business.
Good luck!!