Mother-in law wants to mooch as much money as she can out of us, What do we do?

Wow, my MIL problems look tiny in comparison. You need to have a serious talk with your husband. Make sure that you never ever speak in a derogatory manor about his mother, that will accomplish nothing except to alienate your husband. You need to explain to your husband that your MIL oversteps the normal boundaries and how can the two of you plan your life together if you are always giving away the money which you need for yourself. I'm sure you will need money to start a family, buy your first home, furnish your home, retirement accounts, college tuition for children, credit card debt, the list goes on. If he can't understand your side of things then you have a problem. Yes, your husband will always love his mother as he should but he is supposed to put his own wife and family first. I wish you the best of luck, it sounds like you will need it. One last thing I want to add, remember that this woman will be the grandmother of your children someday. There is no greater gift than giving your children grandparents. Try to keep things as smooth as possible because you don't want anything to interfere with that relationship (even if you personally can't stand her). I'm truly hoping that your husband is man enough to stand by your side on this matter. If not, hold off on having children and think hard about spending the rest of your life with this man.