By The Book Taxes specializes in hands-on, personalized tax preparation and client representation. So, there's only me, Michael O'Leary. I will give your tax return individualized attention all the way through - initial interview, preparation, and final review. Michael O'Leary is an Enrolled Agent (EA), the highest tax credential offered by The U.S. Department of Treasury. In addition to preparing individual (1040) tax returns, Michael is admitted to practice before the IRS and Department of Treasury, enabling him to represent any taxpayer in any state for all tax matters before any office of the IRS.