My credit history is just 5 years old. I have two well maintained credit card accounts since 2004. And I have a one well maintained car-loan account since 2008. However, I have two old negative accounts, since year 2006 (DLA). One item is with a phone company other is with apartment owner. These two items have been disputed by me with CA, as they were not a genuine charge for me. Currently, my FICO credit score is 660. If I able to remove these negative account (by PFD), how much my score will improve? On the other hand, if I make an effort to "settle" or "paid full" on these two negative items, will my score increase or decrease? What is the best option for me to improve (or not hurt) the score in short period of time, say with in a month, as I am shopping for mortgage loan?