You first need to let us know more about your credit! Such as collections/chargeoffs whether they are paid or unpaid, if you have multiple late payements etc.
If you can i would suggest trying to get a secured credit card because credit cards are the fastest way to get a score up. If you are overdrawn in debt them i suggest you contacting all of your creditors and making payment arrangements with them. Most important thing is to have somewhere to live so if you can get a hold on your mortgages!
But we really need to know more about your credit picture! Then the experts will chime in! Good Luck!
Rebuilding and Reducing Debt, is my game plan.