Mark W. Eidman

Managing Partner

Mr. Eidman is one of the leading tax attorneys in the United States and has built one of the most
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512.459.6606 primary


successful tax practices in the nation. He has represented corporate clients in hundreds of administrative appeals and court cases and has successfully litigated some of the largest state and local tax cases in the country. During his 35-year career, Mr. Eidman has assisted taxpayers in more than 40 states. He has significant experience in sales and use, franchise, income, insurance, motor fuel, motor vehicle, property, and severance taxes. He has also advised numerous companies in the structuring of transactions and has worked to draft or implement legislation for the transportation, financial services, leasing, petrochemical, retail, semiconductor, and telecom industries.

Prior to joining Ryan Law, Mr. Eidman was a Partner at an Austin, Texas trial law firm, where he led the Tax Practice. Mr. Eidman has been named a Texas Super Lawyer in the field of taxation and has been named as one of The Best Lawyers in America in the specialty of Tax Law. He served as the Director of the Hearings Division of the Texas Comptroller of Public Accounts supervising all contested tax assessments in Texas. Mr. Eidman is a gubernatorial appointee and serves on the Board of the Texas Public Finance Authority. Mr. Eidman has achieved industry recognition as a strategic thought leader and is a frequent speaker on a variety of tax topics for the Council On State Taxation (COST), the Institute for Professionals in Taxation (IPT), the Tax Executives Institute (TEI), and many other tax-industry associations. He has served as Chairman of the Texas Comptroller’s Industry Liaison Group and has been honored as a Super Lawyer in the area of tax.

Managing Partner, Ryan Law Firm, LLP, Austin office

  • Provides state and local tax litigation representation to clients in all industries, and assists clients with negotiating compliance agreements in various jurisdictions.

Partner, Scott, Douglass & McConnico, L.L.P.

  • Tax Practice Leader

Director of Hearings Division, Texas Comptroller of Public Accounts

  • Supervised legal division responsible for all tax appeals before Comptroller of Public Accounts

where can i buy topamax online PUBLIC PRESENTATIONS
Mr. Eidman lectures on various tax topics for his clients and has appeared as a speaker for the following organizations and events:
• Council On State Taxation
• Dallas/Fort Worth State Tax Association
• Institute for Professionals in Taxation
• Comptroller of Public Accounts Industry Practitioner Liaison Group
• Equipment Leasing Association – Board of State Taxation Committee
• Institute for Professionals in Taxation
• Texas Association of Taxpayers
• Texas Bar Association – Liaison Committee with Comptroller of Public Accounts

• Juris Doctor Degree, The University of Texas School of Law, Licensed in Texas
• Bachelor of Arts Degree, The University of Texas at Austin