Can I declare bankruptcy on a cosigned loan?

NEW YORK (CNNMoney.com) -- Gerri Willis handles all your questions on bankruptcies, real estate and credit scores.

Question 1: I have a tremendous amount of student loan debt. I have considered filing Chapter 7. But some of my loans have been cosigned by my father. How will he be affected by this? -Brooke, Alabama

Bottom line: Dad's going to have to pay up, even if you file for bankruptcy. When you co-sign a loan, you are legally bound to that debt if the first person can't pay. Happy Fathers Day!

Seriously, there are other options out there for you. As long as you don't go into default, you can take advantage of some student loan repayment options. Some of these options include an economic hardship deferment.

This lets you pay just the interest - not interest and principle - every month. You can do this for up to three years, but you must apply for it. A lot of medical students apply for this. To find out if you would qualify for this kind of repayment, go to finaid.org/calculators.

Question 2: Are commissions that real estate agents charge negotiable? -Enrique

Absolutely. Some real estate agents may make it seem like 6 percent is the industry standard. But by law, a commission must be negotiated - otherwise it's known as price fixing. If you manage to negotiate even a one-point difference in commission, you can save thousands of dollars.

To get the most out of your bargaining, you should get at least three or four commission estimates from agents and use that information to pit agents against each other.

And here's a tip: Don't negotiate in your home. It's tough to play hardball when your family is vegging out in the living room. Go to your office or a neutral location.

Question 3: I am looking to buy a home in the coming months. I have a credit score of 790. What rate should I be getting? -Mathew, Georgia

Well, Mathew, that's a great score. You'll likely qualify for some of the best rates out there. If you know your credit score, it's always a good idea to figure out where your rate might be. To do this, go to Myfico.com. According to this site, you'll qualify for rate of about 6.2 percent on a 30-year fixed loan.