About
William L. Fillmore is an attorney who advises businesses on corporate and commercial matters. He works with companies at different stages of growth. His practice focuses on business law, transactions, governance, and risk management. Clients value his clear communication and steady judgment. He helps organizations structure deals, negotiate contracts, and resolve disputes. His approach emphasizes practical solutions that support long-term stability, efficiency, and informed decision-making in competitive markets nationwide.
William earned his J.D. from the University of Chicago Law School. During law school, he completed a three-year academic scholarship and worked with the Mandel Legal Aid Clinic. He also earned a B.A., magna cum laude, in English Literature from Brigham Young University. This education strengthened his legal analysis, writing discipline, and ethical perspective, which continue to guide his work advising businesses on complex legal and commercial issues nationwide.
After law school, William practiced with regional firms and gained experience in business transactions and disputes. He later served as Associate General Counsel for a major university, advising on governance and operations. He then managed and led law offices, concentrating on mergers, financing, technology licensing, and commercial real estate matters. His career reflects consistent leadership, sound judgment, and a strong commitment to client-focused legal service and long-term value.
Throughout his career, William L. Fillmore has helped organizations navigate acquisitions, contracts, and financing decisions. He is known for careful preparation and calm problem-solving. By aligning legal strategy with business goals, he supports efficient operations and risk control. Clients benefit from his ability to anticipate issues, negotiate effectively, and guide decisions that protect assets, promote compliance, and encourage sustainable growth in changing commercial environments across diverse industries and markets nationwide.
Law Office Affiliations
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Founding Partner, Fillmore Spencer LLC
- Member, Utah State Bar
- Member, Colorado Bar Association
- Chairman, Provo-Orem Chamber of Commerce, Board of Directors
- Member, Utah Valley Chamber of Commerce
Licensed State
- Utah
- Colorado
Education
- University of Chicago Law School
Juris Doctor (JD) - Brigham Young University
Bachelor of Arts (BA)
Awards & Badges



- Contracts & Agreements
- Corporate & Incorporation
- Equipment Finance & Leasing
- Limited Liability Company (LLC)
- Mergers & Acquisitions
- Science & Technology
- Tax
- Commercial Real Estate
- Construction & Development
- Land Use & Zoning
- Title & Boundary Issues




