Office Building of Cox, Zwerner, Gambill & Sullivan, LLP

A Tradition of Top-Notch Legal Service

The Attorneys at Cox, Zwerner, Gambill & Sullivan, LLP, have served clients throughout the Wabash Valley for more than a hundred years. Our Attorneys have more than 180 years of combined experience, ensuring your matter is handled efficiently and effectively. The Attorneys and staff work together as a team to achieve the best possible outcomes for our clients. As an AV® Peer Review Rated Firm,1 Cox, Zwerner, Gambill & Sullivan, LLP, has received the highest mark possible in this prestigious rating system. A superior product, delivered with personal attention to detail, is the Firm’s trademark.

Representing a variety of clients—including individuals, families, small businesses, institutions of higher education, local government units, non-profits and large corporations—the Firm has an established reputation of meeting the needs of its clients, no matter how big or small, simple or complex.

Our Practice Areas

Business & Municipal Law


Civil Mediation


Estate, Medicaid & Disability Planning & Estate Settlement



Real Estate Law

Client Loyalty And Trust

Cox, Zwerner, Gambill & Sullivan, LLP, is proud of its reputation and the loyalty our clients show to our Firm. Much of our day-to-day business comes from our loyal clients referring their friends, neighbors and professional colleagues to our Firm. Some of our clients include families that have been loyal to our Firm from generation to generation as well as business entities, institutions of higher education and local government units that the Firm has represented for more than thirty (30) years.

The Firm’s Attorneys provide a high level of value to every client by applying their comprehensive knowledge of the law and Indiana courts, by giving innovative and responsive counsel for every matter and by resolving disputes with matters as varied and complex as: Business Law & Litigation; Civil Mediation; Collections; Contract Law; Employment & Labor Law; Estate, Disability, Medicaid & Trust Planning; Estate Settlement; Institutions of Higher Education; Municipal Law & Litigation; Organizational Compliance with Local, State & Federal Regulations; Public Finance; Real Estate Law; Trust Administration; Tax Abatement; and Zoning Law.

Interior of the Office of Cox, Zwerner, Gambill & Sullivan, LLP
Cards and Cups

1 CV, BV and AV are registered certification marks of Reed Elsevier Properties, Inc., used in accordance with the Martindale-Hubbell certification procedures, standards and policies.

2 Parking – The Firm provides complimentary, convenient parking for all of our clients in the parking lot at the corner of Wabash Avenue and Fifth Street in Terre Haute. Parking is for clients and staff only. In order to activate the parking gate, press the small black button located on the lower left-hand side of the gate box. Parking is for clients and staff only. All others will be towed at owner’s expense.

A Tradition Of Experienced Representation