Hi Ismael,
some links to german auctions as requested (cant write full address until I am fully fledged):
argetra.de
immobilienauktionen-sachsen.de
zv-information.de
We also help people through the auction process, provide usefull info and post some on our web site, look up:
berlinprofile.com
can also answer specific quetions via
info@berlinprofile.com
Regards.