A headshot of Amy Arndt.

Amy L. Arndt

Partner
Sioux Falls

Amy L. Arndt helps privately held and owner-managed companies bring structure to complex legal and business challenges. As Practice Leader of Ballard Spahr’s Transactions and Outside General Counsel Group and a member of the Mergers and Acquisitions practice, she serves as a strategic partner to middle-market businesses, family offices, and companies seeking experienced legal counsel to complement their in-house capabilities or serve as an extension of their teams. Amy advises clients through both day-to-day operations and pivotal business events, overseeing their outside legal services and guiding them through mergers and acquisitions, corporate restructurings, financings, governance, Employee Stock Ownership Plan (ESOP) transactions, and ownership transitions.

Under Amy’s leadership, Ballard Spahr’s outside general counsel model gives clients a single point of entry and a dedicated team integrated with management and in-house legal.

Representative Experience 

Representative Matters

Outside General Counsel and Strategic Business Advice

  • Leads a dedicated, multipractice Ballard Spahr legal team serving as outside general counsel to an engineering and technology company with operations across multiple jurisdictions. Amy oversees the company’s legal portfolio, coordinating advice on corporate reorganizations, strategic acquisitions, commercial agreements, workforce issues, litigation, regulatory compliance, and professional licensing.
  • Serves as outside general counsel to family offices and their operating companies, helping owners and executives manage legal matters across manufacturing businesses, investment entities, real estate holdings, and other assets. Her work encompasses governance, entity and ownership structures, investments, financing, acquisitions, enterprise risk, and succession planning.
  • Leads dedicated Ballard Spahr legal teams for established middle-market companies seeking outside general counsel services or experienced legal counsel to complement their in-house capabilities. Acting as an extension of management and the in-house team, Amy coordinates the client’s legal needs across the firm while helping the business anticipate risk; strengthen its organizational and ownership structure; and prepare for recapitalizations, refinancings, acquisitions, and sales.

Professional Highlights

Professional Activities

State Bar of South Dakota, Business Law Committee, Chair, 2012-present

American College of Mortgage Attorneys, Fellow, 2017-present

American Bar Association, Real Property, Trust and Estate Law Section, Member 

Second Judicial Bar Association, Member

Recognition & Accomplishments

Chambers USA, Corporate/Commercial (South Dakota), Band 1, 2016-2026

The Best Lawyers in America, Mergers and Acquisitions Law, 2013-2027; Corporate Governance Law, 2025-2027; Corporate Law, 2025-2027; "Lawyer of the Year," Mergers and Acquisitions Law (Sioux Falls), 2022 and 2024

IFLR 1000, "Highly Regarded," Mergers and Acquisitions, 2025

Credentials 

Education

University of Nebraska College of Law (J.D. 1996)

Augustana College (B.S., with honors, 1993)

Admissions

South Dakota

U.S. District Court for the District of South Dakota