About Us

We take time to learn your objectives and goals, and then partner with you to achieve them.Relationships with our clients are built on our sincere desire to help them succeed. We do this by providing expert accounting and tax advice, peace of mind, and responsiveness that includes returning phone calls and emails within 24 hours. Our mission is to become our clients most trusted advisor.

John Weitz

John F. Weitz, CPA

John has 18 years of experience providing accounting and income tax services for businesses and individuals. John attended Northern Illinois University earning a bachelor’s degree in accounting. After graduation he passed the uniform CPA exam and began working for a mid-sized public accounting firm in Deerfield. He has worked with a variety of clients with diverse accounting needs, and has particularly enjoyed meeting and working with small business owners. John and his wife have lived in Bartlett for 11 years with their three children. John enjoys volunteering at church, spending time with his family, running outdoors and traveling.

Certified Public Accountant, Licensed in Illinois since 2004.

Kelly Kadlec

Kelly Kadlec, Staff Accountant

Kelly began working at John F. Weitz, CPA in September 2017 as a staff accountant. She has also been working as an educational specialist in all subject areas for the past 6 years. Kelly and her husband have lived in the St. Charles area for 10 years with their three children. When she isn’t working she can be found at one of her kids’ sporting events. Kelly is passionate about the environment and making the world a better place. Kelly enjoys being outside and spending time with her family.


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