Sean McCoy, E.A. is a well experienced firm, Providing expert advice and rePresentation to a diverse client base in Arizona, Idaho, California and most other states since 1979. Based in Scottsdale, Arizona, Sean specializes in Personal and Businessome Taxes, Estate Taxes, Business ApPraisals/Valuations and the Administration of Trusts and Estates. As a Litigation Support Specialist, it serves as expert witness, economic analyst, tax application specialist, forensic accountant and business valuator.