Patrick Costello is a nationally recognized authority on agricultural law, estate planning, taxation, and business planning. He is a member of the Minnesota, Iowa, and Nebraska Bar. Costello is the Past President of the American Agricultural Law Association.  He is a Fellow in the American College of Trust and Estate Counsel and a past Director of the Minnesota State Bar Foundation. He serves on the board of directors the Center for Rural Policy and Development, appointed by the Governor of Minnesota.  

Costello has served on the Board of Governors of the Minnesota State Bar Association and chaired their Sections on Agricultural Law and Outstate Practice. He is the author of numerous continuing legal education articles on agricultural law and taxation. In the American Bar Association, he served as co-chair of the Animal Law Committee of the Section of Tort, Trial and Insurance Practice and is a member of the Real Property, Trust and Estate Section. 

Since 1977 he practiced law in his home town of Lakefield, Minnesota as a member of the 8th oldest law firm in the State of Minnesota. On January 12, 2024, Mr Costello withdrew from old firm, Costello, Carlson & Butzon LLP, to begin a solo practice in probate, trust and estate administration and estate tax planning. He will establish an “Of Counsel” relationship with a law firm capable of offering succession for clients. Costello brings experience in handling large and complex estates with tax issues involving farm succession. He is activing practicing law daily, Monday through Friday, 9:00 to 5:00 in his law office in Lakefield, Minnesota. 507-662-6621