Good afternoon, Brittany:
Sorry to hear of this bad situation. While a co-signer will usually not help much in today's lending environment (loans are based on the person with the lowest credit score) the good news is that you are very close to the 600 middle credit score needed to qualify for financing.
You may want to read the read the Trulia Real Estate Blog: Can I get a home or am I stuck renting? (link below). If you meet that criteria, you can usually purchase a home. I would get a couple of secured credit cards and engage a HUD certified housing counselor to advise you on how to clean up your credit and dispute those charges that are not his. The blog "Ten tips for repairing your credit history, raising score" may also be helpful. http://goo.gl/INE80
Your $5000 in savings will be helpful, but there are programs out there that will give you $7500 towards down payment and closing costs that if you qualify for them would allow you to use the savings to settle debts, boost your credit scores and qualify you for a mortgage faster. If you have a full time agent with a Masters degree in Planning with Finance and over two decades of experience, working for you, you will likely do better in negotiations. I'd be pleased to provide that service. If you appreciate this answer, please give it a thumbs up, or if this was the most helpful answer, please say thanks with a best answer click.