Mr. Castilla is a native of Madison County, Mississippi and retired at the end of 2023 from the Butler Snow LLP law firm where he had been a partner for many years in the Business Services Group. Prior to joining Butler Snow, Mr. Castilla was a partner in the Watkins Ludlam Winter & Stennis, P.A. and the Jones Walker LLP law firms.  He is a graduate of Millsaps College, where he earned his B.A. and MBA degrees, and the University of Virginia School of Law, where he served as Editor-in-Chief of the Virginia Tax Review. He is also a Certified Public Accountant.  Mr. Castilla’s full-time law practice concentrated primarily on federal, state, and local taxation matters, including contested matters with the IRS and the Mississippi Department of Revenue; he also handled a variety of corporate, transactional, and financing matters and generally served as a trusted tax and business advisor.  He is a member of the Mississippi and District of Columbia bars and he has also been inducted as a Fellow of the Mississippi Bar Foundation.

Since retiring from full-time law practice, Mr. Castilla has established a mediation and arbitration firm, Castilla Mediation Group, LLC, where he serves as a neutral to assist adverse parties in negotiating jointly acceptable resolution of issues in conflict.  He also continues to consult and advise on various tax, corporate, transactional, and financing matters.

Mr. Castilla has a long record of service in civic and community circles and has served or is serving on numerous boards, including the Mississippi Board of Bar Commissioners, the Capital Area Bar Association, the Community Foundation of Mississippi, Downtown Jackson YMCA, the Metro Jackson Chamber of Commerce, the Madison County Business League & Foundation, Millsaps College, the Mississippi Economic Council, the Mississippi Center for Education Innovation, the  Medgar & Myrlie Evers Institute, the E-Center Foundation of Mississippi, and the Jackson State University Development Foundation.

Mr. Castilla is an active member of New Lake Church in Jackson, Mississippi, where he chairs the Trustee Board, and enjoys traveling, theatre, attending baseball and football games, fishing and playing golf as often as possible.  He has two adult children and resides in Madison County, Mississippi.