Abdulhamit ÖNDER is a graduate of Bahçeşehir University, Faculty of Law, and is registered to the Istanbul Bar Association and offers his legal services through the law firm he founded. Abdulhamit ONDER; Leadership Certificate in Europe by Bahçeşehir University School of Government and Leadership, including Management, Political Leadership, Islam and Art Policies, Religion, State and Secularism, Constitution, Democracy and Sovereignty, Internal Security Law and Search by Bahçeşehir University IGUL, El Certification, Unlawful Evidence Certificate, “Cross-Examination and Compromise Techniques” Certificate by Bahçeşehir University IGUL, “Comperative Criminal Law and TORTS Law Courser” Certificate by Bahçeşehir University IGUL, “German Criminal Law Days-4” by Bahçeşehir University IGUL “Security Law” Certificate, “Control of Communications via Telecommunication and Confidential Investigation Methods” Certificate given by Bahçeşehir University IGUL&BÜSEM, Istanbul Bar Association CMK Application Center, CMK Training Certificate, Istanbul Bar Association Women's Rights Center, Prevention of Domestic Violence Participated in certification programs. Mainly; He works in the fields of Law, Consultancy, Corporate Law, Commercial Law, Civil Law, Contracts Law, Banking and Finance Law, Criminal Law, Real Estate Law, Execution and Bankruptcy Law, IT Law, Competition Law, Cooperatives Law, litigation and dispute resolution. .