It depends on what you mean by walk away. Don't turn your back on giving them advice and lend an ear when needed. But, don't financially support them, etc. if it is not going to handled wisely or paid back if a loan. They are not your responsibility other than to be a good sibling and daughter. In order to fulfill that obligation, it is only to be there for them when you can and when it is truly needed. But, if they are a bunch of babies and it is only hurting your marriage and family, then you have to back off. I wish I could give you more specific advice, but I don't understand your specifics. You are not obligated to financially support your extended family. But, you are obligated to be there, when you can, in times of trouble and to honor and show respect to your parents (even when they don't deserve it). But, that does not mean that it should cost you your own immediate family. It should only be when it is at your disposal to do so. The Bible says not to turn your neighbor away when it is convenient to help him (proverbs). But, it doesn't expect you to go into debt to help him. It is when you are able to help him, you should. You have to set limits.