I know a CPA who got hers with just a bachelor's, and from what I understand, she could only do that because she was grandfathered in due to her graduation date. It now requires at least a master's degree.CPA is always in demand and pays well, but it is difficult and requires a 4 year degree.
ETA: this is assuming we're all talking about a Certified Public Accountant, not some other kind of CPA.