Helge Achenbach has had his day in court and must now repay a substantial amount of money, according to The Art Newspaper:

Since 2007, Achenbach bought 21 works of art for a total price of €24.1m and 11 vintage cars for €48.1m for Albrecht, according to a statement issued by the court today, 20 January. His agreed commission was 5% on the net purchase price of the works of art and 3% for the cars. His client, however, paid €33.6m for the works of art and around €63.2m, which, after charges including VAT and commission, left €19.3m unaccounted for.

German art consultant ordered to pay €19m damages  (The Art Newspaper)