William R. Thomas is an attorney at Ottosen DiNolfo Hasenbalg & Castaldo, Ltd., a firm specializing in providing comprehensive legal services to municipalities, local governments, and public sector organizations, with a strong focus on insurance defense and labor and employment matters. The firm stands out for its deep commitment to serving those who serve others, including public safety organizations, school districts, and public pension boards, while also representing individuals and business entities in a variety of legal needs.
Founded in 1992, the firm has built a legacy of trust and long-lasting relationships, with nearly 400 government entities throughout Illinois relying on its expertise. The attorneys at Ottosen DiNolfo take an intelligent, efficient, and economical approach to advancing client interests, offering tailored solutions that address specific legal challenges faced by public sector clients, businesses, and individuals alike.
Services Offered
- Attorney services
- Insurance attorney representation
- General practice law
- Labor and employment law
- Litigation and insurance defense
- Corporate and business law
- Tax law
- Municipal law
- Public pension practice
- Public safety legal services
- School districts legal representation
The firm serves clients throughout Illinois, with offices in Naperville, Elburn, Mokena, and Woodstock, ensuring accessibility and localized support for municipalities, public organizations, businesses, and individuals across the state.
