I was not blocking the apartment but travelling back and forth while doing my PhD, during one year. I lived there, and when I was away someone else was taking care of it. The Bavarian investor was definitely the bad guy, he illegally cut telephone cables and threatened me with making my life a misery in a way that was directly against German rent law. I had to consult with the lawyer from the rent protection association (Mieterschutzbund) who told me it might be better to keep an agreement with him since they only pursue lawsuits in more drastic cases - unfortunately such harassing is normal, although in the end illegal.
The rent was not too low, it was perfectly okay for the previous owners and I can assure you they did not lose money. They made enough money to pay a company full-time to take care of the building and relations to the renters. They merely earned normal amounts instead of seeking a 1000% return on their investment like the guy from Bavaria. There are greedy and fair house owners, it's as simple as that.
The rent was not too low, it was perfectly okay for the previous owners and I can assure you they did not lose money. They made enough money to pay a company full-time to take care of the building and relations to the renters. They merely earned normal amounts instead of seeking a 1000% return on their investment like the guy from Bavaria. There are greedy and fair house owners, it's as simple as that.