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Contact Our Firm

Thank you for visiting Ottosen Dinolfo Hasenbalg & Castaldo, Ltd.  We appreciate your inquiry, and we will follow up within one business day.

You can reach us directly by phone at one of our locations or fill out the form.

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Our Offices

Naperville Office

1804 North Naper Blvd.
Suite 350
Naperville, Illinois 60563
Phone: 630-682-0085
Fax: 630-682-0788

Elburn Office

8 South Main Street
Suite C
Elburn, Illinois 60119 
Phone: 630-365-6441 
Fax: 630-365-6451

Mokena Office

9990 West 190th Street
Suite A
Mokena, Illinois 60448
Phone: 708-478-4600
Fax: 708-478-6106