Thomas J. Linngren

Thomas J. Linngren is a partner with Green Oviatt Law Firm LLP in Watertown, South Dakota. His primary practice areas include business planning, estate planning and administration, real estate, and collections. Linngren also serves as a mediator on request in matters related to his principal practice areas. His work helps individuals, families, and businesses address ownership, succession, property, and financial issues through planning, transactions, administration, or negotiated resolution.

Linngren graduated from South Dakota State University in 1991 and from the University of South Dakota School of Law in 1994. After law school, he completed a one-year clerkship with a South Dakota circuit court before joining the firm in 1995. That combination of court experience and long-term private practice supports his work in planning, drafting, negotiation, and the legal procedures associated with estates, business matters, and property transactions.

His estate work includes planning and administration, while his business practice involves helping clients organize and manage legal issues connected to ownership and future transitions. Linngren also handles real estate matters and collections, giving him experience with transactions and payment-related disputes. When serving as a mediator, he brings knowledge from these substantive areas to the process and helps parties explore practical resolutions outside a fully litigated outcome.

Thomas J. Linngren brings more than three decades of practice experience to clients with business, estate, and real estate needs. He focuses on practical legal planning and clear documentation while also drawing on his mediation and court background when disputes arise. Linngren’s long tenure with the firm and his work across connected property, business, and estate issues allow him to help clients coordinate decisions that may affect both current operations and long-term goals.

Law Office Affiliations

• Attorney, Green Oviatt Law Firm LLP
• Member, State Bar of South Dakota

Licensed State

• South Dakota

Awards & Badges