David C. Ainley

David C. Ainley is a seasoned matrimonial attorney who approaches each case by helping clients define clear goals and guiding them toward resolution with focus and purpose. He is widely recognized for his skill in high net worth divorce matters involving business, real estate, and complex financial assets. His calm, strategic demeanor helps clients navigate emotionally charged situations with clarity.

David earned his Bachelor of Science degree from Purdue University’s Krannert School of Management in 1990 and his Juris Doctor from The John Marshall Law School in 1994. His education in business and law provides him with a solid foundation for addressing valuation, accounting, and tax issues in divorce litigation. He is admitted to practice in Illinois and before the Trial Bar of the U.S. District Court.

With a reputation built on results, David has been recognized as an AV Preeminent-rated attorney by Martindale-Hubbell and selected by peers for the Leading Lawyers Network and Illinois Super Lawyers. He is a Fellow of the American Academy of Matrimonial Lawyers and has served on the Board of its Illinois Chapter. His deep knowledge of custody law allows him to resolve sensitive family matters amicably, pursuing litigation only when necessary.

David’s litigation background includes successful appellate work, including the landmark decision in In re Civil Union of Hamlin and Vasconcellos on equitable property division for same-sex couples. He also prevailed in a maintenance modification case in In re Marriage of Caminiti. David C. Ainley joined Katz & Stefani, LLC as a partner in 2008, continuing to lead in sophisticated family law cases.

Beyond the courtroom, David C. Ainley frequently lectures on tax, trusts, trial advocacy, and valuation topics. He has been a featured speaker for the American Academy of Matrimonial Lawyers, the Illinois CPA Society, and other respected organizations. He is also a co-author of the “Attorneys’ Fees” chapter in the IICLE Family Law Series and a former faculty member at top trial advocacy institutes.

Law Office Affiliations

• Senior Partner, Katz & Stefani, LLC
• Fellow, American Academy of Matrimonial Lawyers
• Member, Chicago Bar Association
• Member, Illinois State Bar Association, Family Law Section Council
• Former Faculty Member, National Institute for Trial Advocacy

Licensed State

• Illinois

Education

• The John Marshall Law School
  Juris Doctor (JD)
• Purdue University Krannert School of Management

  Bachelor of Science (BS)

Awards & Badges