If you are going through a divorce in Illinois, you will almost certainly encounter the discovery process. The term sounds technical, and the procedures can be complex. But at its core, discovery is one of the most powerful tools available to you and your attorney, and understanding how it works, what it can reveal, and what happens if you handle it poorly can make a decisive difference in your outcome. At KHK Family Law & Divorce Attorneys, Attorney Matthew Katz brings over 20 years of family law experience, a Master’s in Social Work from the University of Chicago, and a deeply strategic approach to the discovery process in every case.
What Is Discovery?
Discovery is the formal legal process through which each party in a divorce case can obtain information and documents from the other side. It operates as an open-door policy. You have the right to request, and in most cases receive, any document or information that is relevant to the marital estate, the financial history of the marriage, or any disputed issue in the case. Your spouse has the same right on their side.
The process typically begins with the Financial Affidavit, a court-required document that must be filed within 30 days of initiating the case. This snapshot of each party’s finances is the starting point. From there, depending on the complexity of the estate and the level of cooperation between the parties, discovery can expand significantly. In cases where the marital estate is straightforward and both parties are transparent, discovery may be relatively brief. In contested or complex cases, it can be one of the most consequential phases of the entire proceedings.
The Full Toolkit: What Discovery Can Include
Beyond the Financial Affidavit, discovery in Illinois family law cases can include requests to produce documents, which require a party to hand over specific financial records, communications, or other materials. It can include interrogatories, written questions that must be answered under oath within a specified time. It can include depositions, in-person testimony taken under oath before a court reporter, where attorneys can question the other party or witnesses directly.
In more complex cases, particularly those involving business ownership, investment portfolios, large asset bases, or suspected concealment of wealth, additional tools may be necessary. Forensic accountants can reconstruct financial records, identify hidden income streams, and place accurate values on business interests. Private investigators can document behavior and locate assets. Subpoenas can compel testimony and document production from third parties such as banks, employers, or business partners. Attorney Katz knows when each of these tools is warranted and how to deploy them effectively.
Marital and Non-Marital Property
A central question in most Illinois divorces is what property is subject to division. Illinois distinguishes between marital property and non-marital property. Marital property is generally any asset acquired during the marriage, regardless of whose name it is held in. Non-marital property includes assets brought into the marriage, or received as a gift or inheritance specifically directed to one spouse.
The complication arises when non-marital property has been co-mingled with marital assets, deposited into joint accounts, used to pay joint expenses, or otherwise integrated into the marital estate. Once co-mingling has occurred, that property may become subject to division as a marital asset. Discovery is the mechanism through which these distinctions are investigated, documented, and argued. Whether you are protecting separate property or pursuing a fair share of assets you suspect are being minimized or concealed, the quality of your discovery strategy directly affects the outcome.
Discovery as a Strategic Tool
Experienced family law attorneys do not treat discovery as a compliance exercise. In skilled hands, it is a strategic lever that can move the other party toward settlement on favorable terms. Attorney Katz offers a compelling illustration from practice: a case where the opposing party was clearly concealing assets and understating income. Before any deposition testimony was taken, a subpoena was issued compelling that individual to appear and answer questions about finances under oath before a court reporter.
The result was immediate. The other side knew exactly what that deposition would reveal. Within days of the subpoena, a settlement offer arrived. The deposition never took place. This is the kind of strategic thinking that transforms discovery from paperwork into leverage, and it is the difference between an attorney who processes cases and one who wins them.
Your Obligations in the Discovery Process
Discovery is not one-directional. You also have legal obligations to respond to legitimate discovery requests from the other party. This does not mean you must produce every document ever requested, or that you have no ability to object to requests that are overbroad or improper. It means that you must respond in a timely, good-faith manner and take the court’s process seriously.
Failing to do so carries real and serious consequences. Illinois judges have broad authority to sanction parties who willfully ignore or obstruct discovery. Sanctions can include requiring the non-compliant party to pay the opposing attorney’s fees, imposing monetary fines, drawing adverse inferences against the non-compliant party on disputed issues, and in the most serious cases, holding a party in contempt of court, which can include jail time.
Understanding your discovery obligations and navigating them carefully with your attorney’s guidance is not optional. It is a legal necessity. At KHK Family Law & Divorce Attorneys, we help clients meet their obligations strategically, responding appropriately to what is required while protecting what does not need to be disclosed and challenging requests that exceed what the law permits. Our 70+ years of combined family law experience means we have navigated discovery in cases of every level of complexity.
The discovery process, handled well, is one of the most powerful assets a divorce client can have. Handled poorly, it can become one of the most damaging liabilities. At KHK Family Law & Divorce Attorneys, we treat every stage of discovery as a strategic opportunity. Whether that means aggressively pursuing records the other side would prefer to keep hidden, carefully protecting assets that are legitimately non-marital, or using the threat of deposition to force an early settlement, the approach is always intentional and always oriented toward the best possible outcome for the client.
