California has strict laws about what you can and can not do if someone is in foreclosure. They have a special agreement called an equity purchase agreement and a five day right of rescission. There is a law that will get you in trouble if you violate it. Make sure you read every word of this and understand it.
Don’t tell anyone that you can stop the foreclosure. All you can do is educate or buy their house. Remember you probably know more than they do so try to help- be a friend but don’t make promises about their situation.

Here is the link.