Naperville’s Trusted Attorneys;
Nyberg & Cassioppi

Collectively, the attorneys of Nyberg & Cassioppi have over 100 years of legal experience. We are strategic partners with businesses and their owners; offering insight, planning, counsel and advice on a wide array of matters including: Business Law, Estate Planning and Administration, Dispute Resolution, and Community and Homeowners Associations.


Check out our Interview with NCTV-17

Firm News and Upcoming Events

Nyberg & Cassioppi Announces Strategic Merger With Momkus McCluskey, LLC and Roberts, PC

We are pleased to announce that effective July 1, 2016, Nyberg & Cassioppi, LLC is merging its law practice with Momkus McCluskey, LLC and Roberts, PC. We are excited to be part of bringing these three premier firms together to create one of the area’s

Naperville Responds For Our Veterans Recognizes Gerry Cassioppi as a Founding Board Member and First Chairman

Many think that our Veterans are fully taken care of, however, the truth is there are many gaps in the support that our local Veterans need. They served us and it’s up to us to respond and give back to

Past Event: Economic Development in Naperville: Initiatives and Opportunities for Commercial Real Estate Professionals

Thank you for everyone who attended the kickoff of the Commercial Real Estate Professionals (CREP) Network. Nyberg & Cassioppi was proud to sponsor this event with Steve Chirico, Mayor of the City of Naperville and Christine Jeffries of Naperville Development