After his degree in business administration with the focus on commercial business finance and banking management and business taxation and auditing, Marcus Braun, Dipl-Kfm. [German business administration degree] (Univ.) MRICS, was active for many years in the project development, area rehabilitation and property management sectors. Since 1998 he has been a freelance expert. Amongst other things, he is a tutor at IHK Frankfurt am Main for the training of experts in property valuation.