Credit History and Credit Check?

The thing is that my mom wants to move into these apartments but they say she needs like a co signer or sumthin b/c her credit isn't good. Well mine isn't either, but she doesn't know that and I dont want to tell her. She knows that I have student loans but I also have credit card debt as well that she doesnt know about. And she will probably want me to turn in the application in the next couple of weeks. What all will come up when they check my history? Does anybody know of any I guess "quick fixes" for my credit history? Or ways to increase my score soon?