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Management Board and Supervisory Board

Management Board

Walter Kießling


Walter Kiessling has been active in the property sector for over 30 years. After completing an apprenticeship he went on to take a degree in industrial engineering, spending time in the United States of America and France and developing a passion for project development and property marketing.
As executive partner and management spokesman of Wentzel Dr., Walter Kiessling has been responsible for the company’s financial and new business departments for over 25 years.
In addition, he sits on the advisory boards of several major German companies and is also a member of the board of the North German branch of the Federal Association of Independent Property and Housing Companies (BFW).
His partners value his high level of professional expertise and his ability to organize and structure complex issues. His talent for retaining and motivating staff, coupled with his tremendously creative and innovative approach, are to this day the hallmarks of his successful professional life.

Contact: wkiessling@hmg-ag.de

Supervisory Board

Kay Jess


Dr. Kay Jess is admitted in Hamburg as a German attorney, public auditor, and certified public accountant. He advises business enterprises and business persons on commercial and tax law, and in the area of financial auditing.
Dr. Kay Jess studied law at the Universities of Kiel (Germany) and Lausanne (Switzerland). He obtained a doctorate in 1990, the topic of his doctoral thesis stemming from the law of foundations.
The areas of practice of Dr. Jess are: commercial litigation, tax law, preparation of financial statements, statutory audits of financial statements, tax litigation, business management advice, real estate law, international corporate structuring, due diligence reviews, inheritance tax law, company and partnership law, commercial leasing law, mergers & acquisitions, private equity, corporate succession, and corporate taxation.

Dr. Ronald Crone

Dr. Ronald Crone

Friedrich Crone

Friedrich Crone