My disabled father just realized that my brother's girlfriend has been forging his checks, and writing them to herself. She has stolen over $4000. He discovered this was happening after getting a foreclosure notice in the mail. He would have my brother's girlfriend mail his house payment checks, but she would throw them away and write the same amount out to herself. My father's house is going to be foreclosed on in 18 days. What can I do to stop/ postpone/ give ourselves time to figure this out?