The Credit Repair Organizations Act is a little difficult to read; however, all of the actions that the credit repair companies are legally required to perform are in italics. Here a link to the act: http://www.ftc.gov/os/statutes/croa/croa.shtm
It’s also a good idea to get a copy of your credit reports so that you can monitor the progress of any company you hire. Here’s How to Get Your Free Annual Credit Reports.