I want to thank everybody for the overwhelming support and sound advice. For me, it is more about the frustration I have than necessarily the money. If I were to see that they were doing all they could to live frugally, and still struggle, than I'd be cool with the extra $100. It's just very frustrating because right now my wife and I are on only one income (hers) while I'm getting ready to transfer to Penn State to finish my B.S. On too of that, our 2.5 year old has a sensory processing disorder, and is in constant need of extra expenses (weighted clothes, compression, etc..) So, as you can imagine, we are living quite frugally, (which doesn't bother me because I'm a simple man anyway.) And then I see them being irresponsible on my dime. They do take care of the house, so therefore, I will have a conversation and try to squeeze a little more per month and try to limit my loss. A las, when we do sell, my frustration will probably be gone, but I will learn my lesson.