3030 Salt Creek Lane, Suite 120,
Arlington Heights, IL 60005

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Law Offices of Donald J. Cosley

Excellence in Family and Criminal Law

Donald J. Cosley, past president of the Northwestern Suburban Bar Association, has been representing Illinois residents in criminal defense and family law cases for over 25 years.

Arlington Heights Divorce Attorney

Schaumburg Divorce and Child Custody Lawyer

Most people would be happy to go through life without ever needing to hire a lawyer. But when life happens — when a bump in the road means that you are facing criminal charges or family legal troubles — hiring an experienced attorney to fight to protect your rights and interests is the important decision you can make.

Free Initial Consultation · Se Habla Español · More Than 25 Years of Experience

At the Law Offices of Donald J. Cosley, we have been helping people get past life's bumps for more than 25 years. We work tirelessly for our clients every day, using our skill and experience in law to help them seek the most favorable results for their criminal defense and family law cases.

Important things you should know about our firm:

  • Accessibility: We make it a point to return phone calls and emails as quickly as possible. We remain accessible and flexible to meet with you at convenient times.
  • Knowledge: We have earned a reputation for integrity among the attorneys, clerks and judges in courthouses in Cook County, DuPage County and Lake County. We understand their expectations and how they approach the decision-making process
  • Name-Recognition: We have earned a reputation in the legal community for integrity and honest hard work on behalf of our clients. When we begin the negotiating process, the opposing side knows that we care about reaching a fair agreement.

Illinois Family Law Attorney

Family law matters are especially sensitive and require dedicated and responsive legal representation. At the Law Offices of Donald J. Cosley, we represent clients in divorces and child custody/parental responsibilities disputes. Our practice is dedicated to protecting the rights of mothers, fathers, and especially children.

DUI Defense and Criminal Defense

If you have been arrested for committing a crime, the time to act is now. The prosecution is already mounting a criminal case against you, using any tactics at its disposal to win a conviction.

If you have been arrested for a DUI, drug possession, or any other felony or misdemeanor crime, we can help you minimize the damage. We have been representing people in criminal defense cases for over 25 years, offering effective legal counsel and responsive client service.

Arlington Heights and Palatine Divorce Lawyer · DUI Defense · Criminal Defense Attorney

From our office in Arlington Heights, the Law Offices of Donald J. Cosley represents clients in Rolling Meadows, Schaumburg, Palatine, and communities throughout the greater metropolitan Chicago area. Contact us at 847-253-3100 to schedule a free consultation with an experienced Arlington Heights divorce lawyer today.

Family Law & Divorce

Family law cases require an in-depth knowledge of the law as well as an understanding of the personal stakes involved. Our vast experience with these cases gives us a distinct advantage over the competition. Mr. Cosley's experience with divorce and family law matters can help you navigate challenging times for your family.


Criminal Defense

If you have been arrested, you must remember: You have rights, no matter how severe or seemingly minor the charges. Our practice is devoted to protecting those constitutional rights of our clients. You should act immediately if you have been arrested or suspect that you are being investigated for committing a crime.


Estate Planning

Estate planning is an uncomfortable subject for many people, as it brings to mind the fact that at some point, you will no longer be able to manage your own affairs. Mr. Cosley can help you plan for your family's future using tools such as wills, trusts, powers of attorney, and more.

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