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Fillmore Spencer Utah Attorneys

Founding Partner

William L. Fillmore

Corporate, Commercial And Business Law​​

After receiving his Juris Doctorate at the University of Chicago, William L. Fillmore began his legal career in Denver, Colorado with the regional law firm of Holland & Hart, and subsequently joined the Logan, Utah law firm of Olson & Hoggan. He stepped out of private practice in 1986 to serve as Associate General Counsel for Brigham Young University.

In 1991, Bill opened the Utah County office for the Salt Lake City law firm of Van Cott, Bagley, Cornwall & McCarthy, serving as managing attorney for three years before forming his own firm in Provo in 1994, now known as Fillmore Spencer LLC, Utah County’s largest local law firm.

Mr. Fillmore has an “AV Preeminent” rating with Martindale-Hubbell, and has been voted among “Utah’s Legal Elite,” (Utah Business Magazine).

Martindale Corporate And Business Law

You Deserve The Best Business Attorney

the key to Your Success in Business

Practice Areas

Bill engages in a general business law practice and handles a variety of purchase, sale and merger transactions, debt and equity financing transactions, technology licensing, and commercial real estate matters.

Probate Attorney Utah

Bar Admissions

  • Colorado, 1976
  • U.S. District Court, District of Colorado, 1976
  • U.S. Supreme Court, 1978
  • U.S. Court of Appeals, 10th Circuit, 1978
  • Utah, 1980
  • U.S. District Court, District of Utah, 1980


  • White House Intern
  • Special Service Award (Utah Information Technology Association)
  • Voted among “Utah’s Legal Elite,” Utah Business magazine
  • Marquis Who’s Who in American Law and Who’s Who in the West


Professional Associations

  • U.S. Supreme Court Bar
  • Utah State Bar
  • Colorado Bar Association

Community Involvement

  • Member, Provo City Council
  • Chairman, Board of Trustees, Timpanogos Regional Hospital
  • Chairman, Board of Directors, Provo-Orem Chamber of Commerce
  • Member, Board of Governors, Utah Valley Chamber of Commerce
  • Member, Provo City Parks & Recreation Board
  • Chairman, Citizen Committee for Provo’s Public Safety Bond
  • Special Counsel and Board Member, Academy Square Foundation (restoration project)
  • General Counsel, America’s Freedom Festival at Provo (pro bono)
  • Member, Board of Directors, Brigham Young University Alumni Association
  • National President and Board Member, Brigham Young University Cougar Club
  • Member, Board of Directors, Provo School District Foundation for Excellence
  • Member, Thanksgiving Point Advisory Committee
  • Member, Business Advisory Council, Utah Valley University
  • Member, Provo City Parks & Recreation Board
  • Member, Strategic Advisory Council for the Boy Scout of America’s National Park Council
  • Co-Founder/Executive Committee Member, Utah Information Technology Summit
  • Lecturer, Marriott School of Management, Brigham Young University
  • Adjunct Professor, Brigham Young University School of Religion
  • Adjunct Professor, Utah State University Honors Program
  • Student Body president, Brigham Young University
  • Student Body Academic Vice President, Brigham Young University
  • Academic Vice President, Brigham Young University
  • White House Intern, 1973
  • Author, Once Upon a Christmas, Northwest Publishing
  • Contributor, Encyclopedia of Mormonism, Macmillan Publishing Company
  • Missionary for The Church of Jesus Christ of Latter-day Saints, Vienna, Austria

Provo Law Office

Murray Law Office

St. George Law Office