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John Andrew Horn

Horn & Johnsen SC β€’ Madison, WI
BusinessEstate PlanningPersonal InjuryProbateReal Estate

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Contact

Email
Phone
(720) 807-1239
Address
8446 Excelsior Drive, Madison, WI, 53717, US

Professional

About

John Andrew Horn is a shareholder and co-founder of Horn & Johnsen SC, located in Madison, Wisconsin. With over 26 years of experience as a member of the Wisconsin Bar, Mr. Horn is a distinguished attorney specializing in estate planning, personal injury, probate, real estate, and tax law. He earned his Juris Doctor from the University of Wisconsin Law School in 1991 and subsequently served as a court commissioner for the Marathon County Circuit Court, where he authored several influential judicial opinions under the guidance of now-Supreme Court Justice Ann Walsh Bradley. Justice Bradley praised Mr. Horn for his dedication and insight into complex legal issues. Since establishing his private practice in 1993, Mr. Horn has provided invaluable legal services to a diverse clientele, ranging from small business owners to high-net-worth individuals requiring sophisticated estate planning strategies. His expertise encompasses trust-based and will-based planning, probate, guardianship, and trust administration, ensuring peace of mind for clients and their families. Mr. Horn is an active member of the legal community, frequently speaking at estate planning workshops across Southern Wisconsin and serving as a guest lecturer at the University of Wisconsin Medical School. He also teaches continuing legal education courses through the State Bar of Wisconsin. Committed to giving back, Mr. Horn engages in pro bono work for low-income seniors. In his personal life, he enjoys backcountry hiking and shares his home with an energetic German Shepherd. Fluent in two languages, Mr. Horn is grateful for the support of his wife and daughter.

About Business Law

Business law attorneys advise companies on legal matters including formation, contracts, compliance, and transactions. They help businesses navigate regulatory requirements and protect their interests. Common matters include business formation, contract drafting, mergers and acquisitions, commercial disputes.

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Credentials

Education
1991 U Of Wisconsin JD - Juris Doctor 1986 University of Wisconsin, Madison BA - Bachelor of Arts
Languages
English | Spanish | Thai

Recognition & Involvement

Awards
2017 Client's Choice, Avvo 2016 Client Distinction Award, Martindale-Hubbell
Publications
2014 AAII Journal Avoid the Top 10 Mistakes Made with Beneficiary Designations
Associations
2013 - Present Verona Chamber of Commerce Member 2012 - Present Rainmakers Secretary 2011 - Present Madison Estate Planning Council Member 2011 - Present NAEPC Member 2008 - Present Wisconsin Forum Member
Speaking
2015 Webcast Avoid the Top 10 Mistakes Made with Beneficiary Designations 2015 Ready, Set, Retirement Estate Planning 2015 Prepaid Funeral Plans and Medicaid -- What You Need to Know! Funeral Trusts and Medicaid Planning
Updated: Mar 25, 2026