I did buy some properties in Bavaria - central locations of major towns- and have a rental yield north of 8% ( Munich is excluded as it only achieves about 5%). An agency did help me in finding financing and LTV close to 80% were achieved. So nothing is impossible but I do not think that LTVs as were found in the UK will ever be found again and especially not in Germany.
This does nevertheless make the purchase self financing and makes it a very good pension investment for me.