Ottosen DiNolfo Hasenbalg & Castaldo, Ltd. is a distinguished Illinois-based law firm with a legacy of building long-lasting relationships founded on trust. Specializing in serving public sector clients, the firm is dedicated to representing municipalities, local governments, public pension boards, public safety organizations, and school districts, while also offering comprehensive legal services to individuals and private businesses. Founded in 1992, the firm stands out for its deep commitment to the communities and entities that serve the public.
The firm takes a client-centered approach, developing intelligent, efficient, and economical legal solutions tailored to the specific needs of each client. With nearly 400 government entities throughout Illinois relying on their expertise, Ottosen DiNolfo combines decades of experience with a broad scope of practice to address complex legal challenges. The firm is particularly noted for its work in municipal law, labor and employment, and litigation, making it a trusted advisor for public agencies and private clients alike.
Services Offered
- General Practice
- Labor & Employment
- Litigation & Insurance Defense
- Corporate & Business Law
- Tax Law
- Municipal Law
- Public Pension Practice
- Public Safety Law
- School Districts Representation
The firm serves clients across Illinois from offices in Naperville, Elburn, Mokena, and Woodstock, reinforcing its statewide presence and accessibility to local governments, organizations, and individual clients seeking experienced legal counsel.
