What scares me is that my in-laws are the ones that would be taking out the loan and my fiance would be paying them back. If I can refuse to sign any paperwork, I will but I can't stop my fiance from signing. At least I think that's how they want to do it, I'm confused by the whole deal and I don't want us to get in anything that I don't fully understand. And a lot of it is being conducted behind my back when I'm not present.

I will use the I'm sorry but I can't technique though! It will come in handy especially at work.

If your fiancé won't listen to the word "no" and abide by your wishes, is this a guy you really want to spend the rest of your life with? I understand you're in the lovey-dovey part of the relationship, but later on this behavior will get old. If it doesn't change now, it may never. He needs to stand up to his parents and say no. You come first now. Time to cut those apron strings.