Dear Dave, My fiancée and I want to make an offer on a house. She has a lot of late payments and a bad credit record, though, but she is working hard to manage her money better and get out of debt. I don’t make enough money to get a home loan by myself, and I have some debt to pay off, too. In order to help us out, my aunt and uncle said they are willing to co-sign a mortgage loan for us. What do you think of that idea? Evan Dear Evan, Here’s a simple, solid piece of advice for anyone looking to make a purchase of any kind. If you need a co-signer, you’re not ready to make that purchase—period. I’m not trying to beat you up or anything, but it’s way too soon for you two to be thinking about buying a home. I mean, for …