Daniel F. Duffy

Bangs McCullen Law Firm is a South Dakota-based legal practice with offices in Rapid City and Sioux Falls. The firm traces its origins to the mid-1880s when A.W. Bangs began practicing law in the Dakota Territory. Over time, it evolved from a small frontier office into a larger firm.

Bangs McCullen Law Firm serves clients across a broad spectrum of legal needs. Its practice areas include Banking & Finance Law, Business Litigation, Construction Law, Corporate Law & Business Transactions, Criminal Defense, Employment Law & Sexual Harassment, Estate Planning & Probate, Family Law, General Civil Litigation, Government & Agency Law, Healthcare Law & Professional Malpractice Defense, Landlord Rights & Remedies, Real Estate Law, and Tax Law.

Attorneys at the firm are licensed to practice in South Dakota, Nebraska, Missouri, Iowa, Alaska, and various Tribal Courts, including Rosebud, Oglala Sioux (Pine Ridge), Flandreau Santee, Cheyenne River, Sisseton-Wahpeton Oyate, and Standing Rock Tribal Courts. The firm emphasizes a team approach to litigation and a focus on individual client needs.