The deal with grad plus is they want to make sure you have no 60 or more late CC payments or anything in collections on your credit report (this is what I was told by financial aid anyway.) To cross reference the other post I just made, my credit was stellar when I bought my house before school....since then with no job and (ill admit it) a few 30 day late CC payments on there due to financial aid being unwilling to give me all the cash I really need my credit score took a DIVE recently (I have credit monitoring software)...and I still get my grad plus loans so I wouldnt worry too much.