Mario Leißner | Rechtsanwalt

Market-leading legal expertise along with deep industry experience

Practice Areas

Regulatory Law
Investment Law
Real Estate Law

Clients and Matters

German capital investment companies (KVG) | Major international investment fund managers (AIFM) | Open-ended and closed-ended investment funds (AIF) | Asset managers | Institutional real estate investors | Custodians

Legal and regulatory structuring | All aspects of worldwide acquisitions, financings, and sales | Inbound investments by non-German and non-European investors in German and European real estate

Background and Focus

Mario Leissner was founder of the German office of King & Spalding LLP, one of the leading global law firms, in 2007. For 15 years, i.e. from the opening of the office until his retirement from the operative professional career effective July 1, 2022, Mario served as German Managing Partner and headed King & Spalding’s German Investment Funds and Real Estate Capital Markets practices. Mario also was a member of the firm’s International Strategy Committee.

With 26 years of experience, Mario specialized in fund structuring, regulatory and investment law, and international and German real estate transactions. His award-winning practice also involved corporate and financing work as well as litigation and international taxation.

Mario Leissner has conducted more than 2,500 transactions worldwide with an aggregate value in excess of US$ 200 billion.

Representative Clients

Mario has been representing:

• the vast majority of the German capital investment companies (KVG), a variety of major international investment fund managers (AIFM), open-ended and closed-ended investment funds (AIF), international and German asset managers, institutional real estate investors, and custodians in their legal and regulatory structuring and in all aspects of their worldwide acquisitions, financings, and sales as well as major litigations;

• non-German/non-European investors in their inbound investments in German/European real estate.

Business Location

Located in the heart of Frankfurt am Main, Germany

TaunusTurm | Taunustor 1
60310 Frankfurt am Main

T: +49 (69) 87 00 44 67