Where Experience Meets Excellence
Arlington Heights Divorce Attorney
Trustworthy Advocacy for Spouses Going Through Divorce
Divorce can affect nearly every part of your life, from your finances to your relationship with your children. In highly contested cases, clear legal guidance can make a difficult process feel more manageable. Attorney Donald Cosley helps clients address complex divorce issues involving property division, child custody, parenting time, and spousal support.
Since beginning his legal practice in 1994, Attorney Cosley has represented clients facing serious family law disputes with practical legal guidance. Whether your case involves disagreement over marital assets, concerns about parental decision-making, or questions about maintenance, Attorney Cosley can help you understand your rights and prepare for the road ahead. His goal is to protect your interests while helping you move toward a more stable future.
Steady Counsel for High-Conflict Family Law Disputes
Family law issues can place enormous pressure on parents, spouses, and children. Attorney Donald Cosley helps clients work through sensitive matters involving child support, parental responsibilities, visitation, and post-decree disputes.
Your case may require firm negotiation, courtroom advocacy, or a combination of both. Attorney Cosley can help you understand your options and protect your family’s future, approaching difficult conflicts with focus, preparation, and a strategy tailored to your needs.
Protect What Matters Most in Your Divorce
Divorce can reshape your finances, your home life, and your relationship with your children. Court orders are not easy to modify after the fact, which makes sound advocacy all the more important. With the right legal guidance, you can make informed decisions, protect your rights, and move forward with greater confidence. When you work with our firm, you will reap numerous benefits, including:
Accessibility
We offer free consultations so that prospective clients can understand their options.
Knowledge
Our firm provides clients with straightforward counsel to navigate complicated family issues.
Name-Recognition
Attorney Cosley is renowned across the Chicago area for his effective representation in difficult divorces.
Divorce
When spouses disagree about money, children, or the terms of separation, the process can quickly become stressful and complicated. Our firm can help you understand your rights, prepare for negotiations, and make decisions with your long-term stability in mind.
Family Law
Family law cases often involve sensitive issues that affect parents, children, and household stability. Whether a case can be resolved through negotiation or requires litigation, careful preparation can help protect your interests.
Attorney Donald Cosley
Clear Advice. Strong Advocacy.
When looking for the right firm to handle your case, qualifications and reputation are both important criteria. Attorney Donald Cosley has maintained a superb 10.0 Avvo rating and earned recognition as an Elite Lawyer, highlighting his dedication to providing quality legal service.
When you work with our firm, you will receive one-on-one counsel and guidance from an experienced lawyer. You can rest assured that your case will not be passed off to a paralegal, and that your questions and concerns will be personally heard by Attorney Donald Cosley.
Criminal Defense
If you have been charged with a criminal violation, the way your case is handled from the beginning can make a meaningful difference during the legal proceedings. Our aggressive criminal defense lawyer can review the evidence, challenge weaknesses in the prosecution’s case, protect your constitutional rights, and help you understand the possible consequences you face. We have real trial experience, allowing us to confidently represent clients accused of misdemeanor and felony offenses.
With Attorney Donald Cosley at your side, you can navigate your case with confidence. Strong advocacy can help you pursue the best available path forward, as our firm can help you limit exposure to legal consequences or even pursue a dismissal of charges.
Responsive. Professional. Patient.
“Mr. Cosley is a professional. I had a traffic case for a once in a blue moon accident scenario that it was seemingly unheard of and the process couldn't have been more simple and refined. Was very good at communicating and came prepared with all the documentation we collaborated on to ensure that I was given a fair trial with all facts in order.”
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Arlington Heights Office 3030 Salt Creek Lane, Suite 120 Arlington Heights, IL 60005 Phone: 847-253-3100
At Cosley Law Office, we represent clients in Illinois, including the cities of Rolling Meadows, Schaumburg, Palatine, Arlington Heights, Mount Prospect, Buffalo Grove, Barrington, Elk Grove Village, Inverness, Wheeling, Long Grove and Mundelein, as well as Cook County, Lake County, DuPage County and throughout the Chicago, IL, metropolitan area.
Results listed are not a guarantee or indication of future case results.
© 2026 Cosley Law Office
3030 Salt Creek Lane, Suite 120, Arlington Heights, IL 60005
847-253-3100