William C. Trettin

William C. Trettin is an Iowa City business and financial services attorney who advises clients ranging from single-member limited liability companies to larger private corporations. His practice covers business entities and transactions, financial services, and real estate. He guides organizations through formation decisions, capital needs, and commercial transactions while also representing financial institutions and creditors in matters involving lending, compliance, and creditors’ rights.

Trettin earned his bachelor’s degree from the United States Naval Academy in 2015 and his Juris Doctor from Harvard Law School in 2024. This educational background supports a disciplined approach to legal analysis, strategic planning, and practical problem-solving. His training helps him assess business and financial issues carefully and provide clear guidance as clients make important operational, transactional, and financing decisions.

Trettin’s experience spans multiple stages of the business cycle. Trettin assists companies with selecting and establishing appropriate business structures, raising or obtaining capital, and completing transactions that support growth and ongoing operations. He also counsels financial institutions and creditors on concerns connected with lending, compliance obligations, and the enforcement of creditor rights. This range of work allows him to address routine business needs and more complex financial matters.

William C. Trettin serves as a board member of the Bike Library, reflecting his involvement in the Iowa City community. His practice is grounded in careful analysis, practical advice, and attention to client objectives. By working with businesses, financial institutions, and creditors across commercial matters, he helps clients evaluate options, manage legal and financial risks, and move forward with well-informed business decisions.

Law Office Affiliations

• Attorney, Bradley & Riley PC
• Member, Iowa Bar Association

Licensed State

• Iowa

Education

• Harvard Law School
  Juris Doctor (JD)
• United States Naval Academy
  Bachelor’s Degree