Our Story

Our owner, Joseph Kosteck, was prompted to study real estate law during his time working as an escrow assistant. The title company he worked for flowed into real estate and estate planning, so he decided to put all that newfound knowledge and experience to good use. Joseph opened his own law firm straight out of college and has been operating this law office for more than 25 years.

We have been serving top-notch service at a fair price to the people of Frankfort, IL, since 1997. We are proud to be a part of this community and have built strong relationships with our clients by providing excellent legal services and advice. Our goal is to treat each case as if it was our only one, and to provide each client with the best service and legal advice available.

We have a lengthy background in business and real estate law, and that experience makes us the best choice for wealth strategies and legal advice in the area. We are experienced in several areas of the law, including estate planning, wills, trusts, business start-ups, and more.

The Law Office of Joseph M. Kosteck is the leading law firm serving Frankfort, Mokena, New Lenox, and the surrounding areas. We work hard to offer our clients every benefit available to them under the law. We are affiliated with the following associations: the Chicago Bar Association, the Frankfort Chamber of Commerce, the Illinois Real Estate Lawyers Association, and a partner in the Lincoln-Way Foundation for Academic Excellence.

Give us a call at (815) 806-2950 or stop by and visit for legal advice on real estate law, estate planning, small business start-ups, and more.