Peter Hackmann, Esq.

Practice Areas
  • Family Law
  • Divorce
  • Child Custody
  • Child Support
  • Paternity
  • Modification
  • Adoption
  • Guardianship
  • Prenuptial & Postnuptial Agreements
  • Spousal Support
  • Estate Planning

Bar Admissions

  • Missouri
  • New York

Education

  • Thomas Jefferson School of Law
    • Juris Doctor
  • Aerospace Engineering University of Illinois
    • Bachelor of Science

Peter Hackmann, Esq.

Senior Associate Attorney

Facing a family law matter can be overwhelming, but having the right attorney can make a meaningful difference. Whether you are dealing with a divorce, custody dispute, or another legal issue, it’s important to work with someone who will take the time to understand your needs and advocate for your interests. Peter Hackmann is a caring Senior Associate Attorney with Stange Law Firm. Based in our firm’s Clayton, Missouri office, he can represent individuals throughout the St. Louis area.

Peter holds a Juris Doctor from Thomas Jefferson School of Law in San Diego, California. Before pursuing a legal career, he earned a Bachelor of Science in Aerospace Engineering from the University of Illinois at Urbana-Champaign. His diverse academic background reflects a strong foundation in both analytical thinking and legal reasoning.

Peter is dedicated to guiding clients through the often challenging and emotional landscape of family law. He focuses on helping individuals and families facing divorce, child custody disputes, support matters, and other family-related legal issues. Before joining the St. Louis, MO divorce and family law attorneys, he built a strong foundation managing complex intellectual property cases. He understands that each client’s situation is unique and takes the time to listen carefully, develop personalized legal strategies, and provide steady support throughout the process. Peter is committed to advocating for his clients’ rights and best interests, whether negotiating settlements or representing them in court. His thoughtful, detail-oriented approach combined with compassion allows him to help clients navigate difficult transitions with confidence and clarity, aiming for resolutions that promote their long-term well-being.

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Stange Law Firm, PC

120 S. Central Avenue, Suite 450

St. Louis (Clayton), Missouri 63105

Toll Free: 855-805-0595
Fax: 314-963-9191
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