II do my own and I do others. I am a partner in 3 national brand tax preparations offices.
Currently, every paid preparer has to have a PTIN to identify them to the IRS when they file a client's return. To renew for 2013, every paid preparer will have had to pay for an pass a written exam. They will also have to take continuing education courses. This should improve the quality and accuracy of all returns prepared by paid tax preparers.