People

Mario Leissner is founder and Managing Partner of our Frankfurt office. With 20 years of experience, he specializes in investment fund structuring, regulatory law, and international and German real estate transactions. A former General Counsel of the market-leading German institutional real estate fund sponsor OIK, Mario heads our Real Estate and Capital Markets practices in Germany. Immobilien Manager has named him to its Walk of Fame of the 100 most influential heads of the German real estate industry.

Mario represents the vast majority of German capital investment companies, or KVG, focused on real assets; a variety of international investment fund managers, or AIFM; open-ended and closed-ended investment funds, or AIF; international and German asset managers; institutional real estate investors; and custodians. He assists these clients with their legal and regulatory structuring, in all aspects of their worldwide acquisitions and sales, and in major litigations.

Further, Mario works for non-German and non-European investors making inbound investments in German and European real estate. His practice also involves the corporate, financing and taxation aspects of his clients' activities.

Mario has been recognized by Chambers, Legal 500, JUVE and other business law publications as a leader in both investment funds and real estate law. Handelsblatt, Best Lawyers and Who’s Who Legal list him among Germany’s best lawyers. In 2014, his practice was the only law firm to win the renowned Immobilien Manager Award, given by the real estate industry. Additionally, Mario's practice has been nominated two consecutive times for the Real Estate Law Firm of the Year JUVE Award.

A frequent speaker and author, Mario speaks German, English, French, Russian, Spanish and Italian.

Full Bio

Credentials

English

French

German

Italian

Latin

Russian

Spanish

Best in Class


JUVE, 2016

"Hervorragender Ruf"; "kreative Lösungen bei besonders komplexen Fragestellungen."


JUVE, 2017

"Enormous knowledge of investment funds"; "extremely client-oriented, available on short notice and technically very good."


Chambers Europe, 2017

"Extremely successful"; "innovative"; "excellent reputation."


Legal 500, 2017

06.20.2017

Credentials

English

French

German

Italian

Latin

Russian

Spanish

Best in Class


JUVE, 2016

"Hervorragender Ruf"; "kreative Lösungen bei besonders komplexen Fragestellungen."


JUVE, 2017

"Enormous knowledge of investment funds"; "extremely client-oriented, available on short notice and technically very good."


Chambers Europe, 2017

"Extremely successful"; "innovative"; "excellent reputation."


Legal 500, 2017

06.20.2017