About
William P. Ellsworth brings more than fifteen years of legal experience to guiding clients through personalized estate planning solutions that support long-term financial security. He has supported clients ranging from young families to business owners and high-net-worth households, focusing on practical strategies that reflect each client’s goals and unique planning needs.
Bill earned his B.S. in Pre-Medicine with a Theology minor from the University of Notre Dame, where he contributed to published scientific research. He later completed his J.D., Cum Laude, at DePaul University College of Law, earning a Certificate in Taxation. In addition to practicing law in Illinois and Florida, he also holds the Certified Financial Planner (CFP) designation.
Bill’s background includes serving at small, mid-size, and large firms, allowing him to understand the varied needs of private clients. His work includes foundational estate planning, advanced estate, gift, and tax strategies, and planning for business owners seeking succession and asset protection. His approach emphasizes clarity, efficiency, and the long-term stability that careful preparation provides.
Bill also offers guidance for business formation and business planning matters. He assists clients in structuring entities, protecting ownership interests, and preparing for transitions that preserve business continuity. His multistate licensing enables him to support individuals and companies with planning needs across both Illinois and Florida.
Bill participates in professional organizations that support his focus on estate planning, including the Illinois State Bar Association, the DuPage County Estate Planning Counsel, and the Fenwick Bar Association. Through these memberships, he stays connected to developments that help him refine and strengthen the planning strategies he provides.
William P. Ellsworth remains committed to ensuring his clients understand their options and feel confident in the plans they establish. Whether addressing basic planning needs or sophisticated strategies for families and business owners, he focuses on delivering reliable, thoughtful guidance that helps protect what matters most.
Law Office Affiliations
- Founder, Ellsworth Law, LLC
- Member, Illinois State Bar Association
- Member, Florida Bar Association
- Member, DuPage County Estate Planning Counsel
- Member, Fenwick Bar Association
Licensed State
- Illinois
- Florida
Education
- DePaul University College of Law
Juris Doctor (JD) - University of Notre Dame
BS in Pre-Medicine
Awards & Badges


- Trusts
- Wills And Living Wills
- Tax




